WO2025199790A1 - Dci format 2_3 scrambled by different transmit power control sounding reference signal radio network temporary identifiers - Google Patents
Dci format 2_3 scrambled by different transmit power control sounding reference signal radio network temporary identifiersInfo
- Publication number
- WO2025199790A1 WO2025199790A1 PCT/CN2024/084020 CN2024084020W WO2025199790A1 WO 2025199790 A1 WO2025199790 A1 WO 2025199790A1 CN 2024084020 W CN2024084020 W CN 2024084020W WO 2025199790 A1 WO2025199790 A1 WO 2025199790A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- srs
- power control
- closed
- loop power
- adjustment state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/248—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where transmission power control commands are generated based on a path parameter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
- H04W52/58—Format of the TPC bits
Definitions
- aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods for a downlink control information format 2_3 scrambled by different transmit power control sounding reference signal radio network temporary identifiers.
- Wireless communication systems are widely deployed to provide various services that may include carrying voice, text, messaging, video, data, and/or other traffic.
- the services may include unicast, multicast, and/or broadcast services, among other examples.
- Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and/or device transmit power, among other examples) .
- RATs radio access technologies
- multiple-access RATs include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
- CDMA code division multiple access
- TDMA time division multiple access
- FDMA frequency division multiple access
- OFDMA orthogonal frequency division multiple access
- SC-FDMA single-carrier frequency division multiple access
- TD-SCDMA time division synchronous code division multiple access
- NR New Radio
- 5G New Radio
- 3GPP Third Generation Partnership Project
- NR may be designed to better support Internet of things (IoT) and reduced capability device deployments, industrial connectivity, millimeter wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployment, sidelink and other device-to-device direct communication technologies (for example, cellular vehicle-to-everything (CV2X) communication) , massive multiple-input multiple-output (MIMO) , disaggregated network architectures and network topology expansions, multiple-subscriber implementations, high-precision positioning, and/or radio frequency (RF) sensing, among other examples.
- IoT Internet of things
- mmWave millimeter wave
- NTN non-terrestrial network
- CV2X massive multiple-input multiple-output
- MIMO massive multiple-input multiple-output
- disaggregated network architectures and network topology expansions multiple-subscriber implementations
- RF radio frequency
- the method may include receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first transmit power control (TPC) sounding reference signal (SRS) radio network temporary identifier (RNTI) and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- TPC transmit power control
- SRS sounding reference signal
- RNTI radio network temporary identifier
- the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second
- Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node.
- the set of instructions when executed by one or more processors of the network node, may cause the network node to transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- the set of instructions when executed by one or more processors of the network node, may cause the network node to transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI.
- the set of instructions when executed by one or more processors of the network node, may cause the network node to receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node.
- the set of instructions when executed by one or more processors of the network node, may cause the network node to transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment
- the set of instructions when executed by one or more processors of the network node, may cause the network node to transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI.
- the set of instructions when executed by one or more processors of the network node, may cause the network node to receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
- the UE may include one or more memories and one or more processors coupled to the one or more memories.
- the one or more processors may be configured to receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- the one or more processors may be configured to receive, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI.
- the one or more processors may be configured to transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- the UE may include one or more memories and one or more processors coupled to the one or more memories.
- the one or more processors may be configured to receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state.
- the one or more processors may be configured to receive, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI.
- the one or more processors may be configured to transmit, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
- the network node may include one or more memories and one or more processors coupled to the one or more memories.
- the one or more processors may be configured to transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- the one or more processors may be configured to transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC- SRS-RNTI.
- the one or more processors may be configured to receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- the network node may include one or more memories and one or more processors coupled to the one or more memories.
- the one or more processors may be configured to transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state.
- the one or more processors may be configured to transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI.
- the one or more processors may be configured to receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
- the apparatus may include means for receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- the apparatus may include means for receiving, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI.
- the apparatus may include means for transmitting, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- the apparatus may include means for receiving, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state.
- the apparatus may include means for receiving, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI.
- the apparatus may include means for transmitting, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
- the apparatus may include means for transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- the apparatus may include means for transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI.
- the apparatus may include means for receiving, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- the apparatus may include means for transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state.
- the one or more processors may be configured to transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI.
- the apparatus may include means for receiving, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
- aspects of the present disclosure may generally be implemented by or as a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network node, network entity, wireless communication device, and/or processing system as substantially described with reference to, and as illustrated by, the specification and accompanying drawings.
- Fig. 2 is a diagram illustrating an example network node in communication with an example UE in a wireless network in accordance with the present disclosure.
- Fig. 3 is a diagram illustrating an example disaggregated base station architecture in accordance with the present disclosure.
- Figs. 4A and 4B are diagrams illustrating examples of carrier aggregation, in accordance with the present disclosure.
- Figs. 5A and 5B are diagrams illustrating an example associated with DCI format 2_3 with a CRC scrambled by different TPC-SRS-RNTIs, in accordance with the present disclosure.
- Fig. 6 is a diagram illustrating an example associated with DCI format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states, in accordance with the present disclosure.
- Fig. 7 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
- Fig. 8 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
- Fig. 9 is a diagram illustrating an example process performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure.
- Fig. 10 is a diagram illustrating an example process performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure.
- Fig. 11 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
- Fig. 12 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
- Downlink control information (DCI) format 2_3 is a group common DCI with a cyclic redundancy check (CRC) scrambled with a transmit power control (TPC) sounding reference signal (SRS) radio network temporary identifier (RNTI) .
- the DCI format 2_3 may contain multiple blocks. A starting position of a block may be configured for each user equipment (UE) .
- the payload and/or fields of a block may depend on whether an SRS request field is included in the block and/or a type of the block.
- the SRS request field may comprise two bits, and whether the SRS request field is included in a block may be configured by a radio resource control (RRC) parameter (e.g., fieldTypeFormat2-3) .
- RRC radio resource control
- carrier aggregation with mixed component carrier modes e.g., one or more component carriers are a Mode-1 component carrier configured with two separate SRS closed-loop power control adjustment states, and one or more component carriers are a Mode-2 component carrier configured with a single SRS closed-loop power control adjustment state
- utilizing the DCI format 2_3 with a CRC scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI to indicate that the TPC command is for the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state, respectively, may cause signaling waste with respect to the Mode-2 component carriers.
- the described techniques can be used to improve the efficiency of the signaling required to indicate that the TPC command is to be applied to the single SRS closed-loop power control adjustment state configured for the component carrier.
- 5G New Radio is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) .
- 3GPP Third Generation Partnership Project
- 5G NR supports various technologies and use cases including enhanced mobile broadband (eMBB) , ultra-reliable low-latency communication (URLLC) , massive machine-type communication (mMTC) , millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV) .
- eMBB enhanced mobile broadband
- URLLC ultra-reliable low-latency communication
- mMTC massive machine-type communication
- mmWave millimeter wave
- beamforming network slicing
- edge computing Internet of Things (IoT) connectivity and management
- NFV network function virtualization
- Such technological improvements may be associated with new frequency band expansion, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, disaggregated network architectures and network topology expansion, device aggregation, advanced duplex communication, sidelink and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced capability (RedCap) UE functionality, industrial connectivity, multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, and/or artificial intelligence or machine learning (AI/ML) , among other examples.
- NTN non-terrestrial network
- disaggregated network architectures and network topology expansion device aggregation
- advanced duplex communication including passive or ambient IoT
- RedCap reduced capability
- industrial connectivity multiple-subscriber implementations
- high-precision positioning radio frequency (RF) sensing
- AI/ML artificial intelligence or machine learning
- These technological improvements may support use cases such as wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestrial and/or aerial platforms, among other examples.
- use cases such as wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestrial and/or aerial platforms, among other examples.
- XR extended reality
- metaverse applications meta services for supporting vehicle connectivity
- holographic and mixed reality communication autonomous and collaborative robots
- vehicle platooning and cooperative maneuvering sensing networks
- gesture monitoring human-bra
- Fig. 1 is a diagram illustrating an example of a wireless communication network 100 in accordance with the present disclosure.
- the wireless communication network 100 may be or may include elements of a 5G (or NR) network or a 6G network, among other examples.
- the wireless communication network 100 may include multiple network nodes 110, shown as a network node (NN) 110a, a network node 110b, a network node 110c, and a network node 110d.
- the network nodes 110 may support communications with multiple UEs 120, shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e.
- the network nodes 110 and the UEs 120 of the wireless communication network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, carriers, and/or channels. For example, devices of the wireless communication network 100 may communicate using one or more operating bands.
- multiple wireless networks 100 may be deployed in a given geographic area.
- Each wireless communication network 100 may support a particular RAT (which may also be referred to as an air interface) and may operate on one or more carrier frequencies in one or more frequency ranges.
- RATs include a 4G RAT, a 5G/NR RAT, and/or a 6G RAT, among other examples.
- each RAT in the geographic area may operate on different frequencies to avoid interference with one another.
- FR1 frequency range designations FR1 (410 MHz through 7.125 GHz) , FR2 (24.25 GHz through 52.6 GHz) , FR3 (7.125 GHz through 24.25 GHz) , FR4a or FR4-1 (52.6 GHz through 71 GHz) , FR4 (52.6 GHz through 114.25 GHz) , and FR5 (114.25 GHz through 300 GHz) .
- FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in some documents and articles.
- sub-6 GHz may broadly refer to frequencies that are less than 6 GHz, that are within FR1, and/or that are included in mid-band frequencies.
- millimeter wave if used herein, may broadly refer to frequencies that are included in mid-band frequencies, that are within FR2, FR4, FR4-a or FR4-1, or FR5, and/or that are within the EHF band.
- Higher frequency bands may extend 5G NR operation, 6G operation, and/or other RATs beyond 52.6 GHz.
- each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band.
- the wireless communication network 100 may implement dynamic spectrum sharing (DSS) , in which multiple RATs (for example, 4G/LTE and 5G/NR) are implemented with dynamic bandwidth allocation (for example, based on user demand) in a single frequency band.
- DSS dynamic spectrum sharing
- multiple RATs for example, 4G/LTE and 5G/NR
- dynamic bandwidth allocation for example, based on user demand
- a network node 110 may include one or more devices, components, or systems that enable communication between a UE 120 and one or more devices, components, or systems of the wireless communication network 100.
- a network node 110 may be, may include, or may also be referred to as an NR network node, a 5G network node, a 6G network node, a Node B, an eNB, a gNB, an access point (AP) , a transmission reception point (TRP) , a mobility element, a core, a network entity, a network element, a network equipment, and/or another type of device, component, or system included in a radio access network (RAN) .
- RAN radio access network
- a network node 110 may be implemented as a single physical node (for example, a single physical structure) or may be implemented as two or more physical nodes (for example, two or more distinct physical structures) .
- a network node 110 may be a device or system that implements part of a radio protocol stack, a device or system that implements a full radio protocol stack (such as a full gNB protocol stack) , or a collection of devices or systems that collectively implement the full radio protocol stack.
- a network node 110 may be an aggregated network node (having an aggregated architecture) , meaning that the network node 110 may implement a full radio protocol stack that is physically and logically integrated within a single node (for example, a single physical structure) in the wireless communication network 100.
- an aggregated network node 110 may consist of a single standalone base station or a single TRP that uses a full radio protocol stack to enable or facilitate communication between a UE 120 and a core network of the wireless communication network 100.
- a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station) , meaning that the network node 110 may implement a radio protocol stack that is physically distributed and/or logically distributed among two or more nodes in the same geographic location or in different geographic locations.
- a disaggregated network node may have a disaggregated architecture.
- disaggregated network nodes 110 may be used in an integrated access and backhaul (IAB) network, in an open radio access network (O-RAN) (such as a network configuration in compliance with the O-RAN Alliance) , or in a virtualized radio access network (vRAN) , also known as a cloud radio access network (C-RAN) , to facilitate scaling by separating base station functionality into multiple units that can be individually deployed.
- IAB integrated access and backhaul
- O-RAN open radio access network
- vRAN virtualized radio access network
- C-RAN cloud radio access network
- the network nodes 110 of the wireless communication network 100 may include one or more central units (CUs) , one or more distributed units (DUs) , and/or one or more radio units (RUs) .
- a CU may host one or more higher layer control functions, such as radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, and/or service data adaptation protocol (SDAP) functions, among other examples.
- RRC radio resource control
- PDCP packet data convergence protocol
- SDAP service data adaptation protocol
- a DU may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and/or one or more higher physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP.
- RLC radio link control
- MAC medium access control
- PHY physical
- a DU also may host one or more lower PHY layer functions, such as a fast Fourier transform (FFT) , an inverse FFT (iFFT) , beamforming, physical random access channel (PRACH) extraction and filtering, and/or scheduling of resources for one or more UEs 120, among other examples.
- An RU may host RF processing functions or lower PHY layer functions, such as an FFT, an iFFT, beamforming, or PRACH extraction and filtering, among other examples, according to a functional split, such as a lower layer functional split.
- each RU can be operated to handle over the air (OTA) communication with one or more UEs 120.
- OTA over the air
- a single network node 110 may include a combination of one or more CUs, one or more DUs, and/or one or more RUs. Additionally or alternatively, a network node 110 may include one or more Near-Real Time (Near-RT) RAN Intelligent Controllers (RICs) and/or one or more Non-Real Time (Non-RT) RICs.
- a CU, a DU, and/or an RU may be implemented as a virtual unit, such as a virtual central unit (VCU) , a virtual distributed unit (VDU) , or a virtual radio unit (VRU) , among other examples.
- a virtual unit may be implemented as a virtual network function, such as associated with a cloud deployment.
- Some network nodes 110 may provide communication coverage for a particular geographic area.
- the term “cell” can refer to a coverage area of a network node 110 or to a network node 110 itself, depending on the context in which the term is used.
- a network node 110 may support one or multiple (for example, three) cells.
- a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell.
- a macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions.
- a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions.
- a femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by UEs 120 having association with the femto cell (for example, UEs 120 in a closed subscriber group (CSG) ) .
- a network node 110 for a macro cell may be referred to as a macro network node.
- a network node 110 for a pico cell may be referred to as a pico network node.
- a network node 110 for a femto cell may be referred to as a femto network node or an in-home network node.
- a cell may not necessarily be stationary.
- the geographic area of the cell may move according to the location of an associated mobile network node 110 (for example, a train, a satellite base station, an unmanned aerial vehicle, or an NTN network node) .
- an associated mobile network node 110 for example, a train, a satellite base station, an unmanned aerial vehicle, or an NTN network node
- the wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, aggregated network nodes, and/or disaggregated network nodes, among other examples.
- the network node 110a may be a macro network node for a macro cell 130a
- the network node 110b may be a pico network node for a pico cell 130b
- the network node 110c may be a femto network node for a femto cell 130c.
- network nodes 110 may generally transmit at different power levels, serve different coverage areas, and/or have different impacts on interference in the wireless communication network 100 than other types of network nodes 110.
- macro network nodes may have a high transmit power level (for example, 5 to 40 watts)
- pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (for example, 0.1 to 2 watts) .
- a network node 110 may be, may include, or may operate as an RU, a TRP, or a base station that communicates with one or more UEs 120 via a radio access link (which may be referred to as a “Uu” link) .
- the radio access link may include a downlink and an uplink.
- Downlink (or “DL” ) refers to a communication direction from a network node 110 to a UE 120
- uplink or “UL”
- Downlink channels may include one or more control channels and one or more data channels.
- a downlink control channel may be used to transmit DCI (for example, scheduling information, reference signals, and/or configuration information) from a network node 110 to a UE 120.
- a downlink data channel may be used to transmit downlink data (for example, user data associated with a UE 120) from a network node 110 to a UE 120.
- Downlink control channels may include one or more physical downlink control channels (PDCCHs)
- downlink data channels may include one or more physical downlink shared channels (PDSCHs) .
- Uplink channels may similarly include one or more control channels and one or more data channels.
- An IAB network also generally includes multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply as IAB nodes (or “IAB-nodes” ) .
- Each non-anchor network node 110 may communicate directly with the anchor network node 110 via a wireless backhaul link to access the core network, or may communicate indirectly with the anchor network node 110 via one or more other non-anchor network nodes 110 and associated wireless backhaul links that form a backhaul path to the core network.
- Some anchor network node 110 or other non-anchor network node 110 may also communicate directly with one or more UEs 120 via wireless access links that carry access traffic.
- network resources for wireless communication (such as time resources, frequency resources, and/or spatial resources) may be shared between access links and backhaul links.
- any network node 110 that relays communications may be referred to as a relay network node, a relay station, or simply as a relay.
- a relay may receive a transmission of a communication from an upstream station (for example, another network node 110 or a UE 120) and transmit the communication to a downstream station (for example, a UE 120 or another network node 110) .
- the wireless communication network 100 may include or be referred to as a “multi-hop network. ” In the example shown in Fig.
- the processing system may further include memory circuitry in the form of one or more memory devices, memory blocks, memory elements or other discrete gate or transistor logic or circuitry, each of which may include tangible storage media such as random-access memory (RAM) or read-only memory (ROM) , or combinations thereof (all of which may be generally referred to herein individually as “memories” or collectively as “the memory” or “the memory circuitry” ) .
- RAM random-access memory
- ROM read-only memory
- One or more of the memories may be coupled (for example, operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) with one or more of the processors and may individually or collectively store processor-executable code (such as software) that, when executed by one or more of the processors, may configure one or more of the processors to perform various functions or operations described herein. Additionally or alternatively, in some examples, one or more of the processors may be preconfigured to perform various functions or operations described herein without requiring configuration by software.
- the processing system may further include or be coupled with one or more modems (such as a Wi-Fi (for example, IEEE compliant) modem or a cellular (for example, 3GPP 4G LTE, 5G, or 6G compliant) modem) .
- modems such as a Wi-Fi (for example, IEEE compliant) modem or a cellular (for example, 3GPP 4G LTE, 5G, or 6G compliant) modem
- one or more processors of the processing system include or implement one or more of the modems.
- the processing system may further include or be coupled with multiple radios (collectively “the radio” ) , multiple RF chains, or multiple transceivers, each of which may in turn be coupled with one or more of multiple antennas.
- one or more processors of the processing system include or implement one or more of the radios, RF chains or transceivers.
- the UE 120 may include or may be included in a housing that houses components associated with the UE 120 including the processing system.
- Some UEs 120 may be considered machine-type communication (MTC) UEs, evolved or enhanced machine-type communication (eMTC) , UEs, further enhanced eMTC (feMTC) UEs, or enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be simply referred to as “MTC UEs” ) .
- An MTC UE may be, may include, or may be included in or coupled with a robot, an uncrewed aerial vehicle, a remote device, a sensor, a meter, a monitor, and/or a location tag.
- Some UEs 120 may be considered IoT devices and/or may be implemented as NB-IoT (narrowband IoT) devices.
- An IoT UE or NB-IoT device may be, may include, or may be included in or coupled with an industrial machine, an appliance, a refrigerator, a doorbell camera device, a home automation device, and/or a light fixture, among other examples.
- Some UEs 120 may be considered Customer Premises Equipment, which may include telecommunications devices that are installed at a customer location (such as a home or office) to enable access to a service provider's network (such as included in or in communication with the wireless communication network 100) .
- Some UEs 120 may be classified according to different categories in association with different complexities and/or different capabilities.
- UEs 120 in a first category may facilitate massive IoT in the wireless communication network 100, and may offer low complexity and/or cost relative to UEs 120 in a second category.
- UEs 120 in a second category may include mission-critical IoT devices, legacy UEs, baseline UEs, high-tier UEs, advanced UEs, full-capability UEs, and/or premium UEs that are capable of URLLC, enhanced mobile broadband (eMBB) , and/or precise positioning in the wireless communication network 100, among other examples.
- eMBB enhanced mobile broadband
- a third category of UEs 120 may have mid-tier complexity and/or capability (for example, a capability between UEs 120 of the first category and UEs 120 of the second capability) .
- a UE 120 of the third category may be referred to as a reduced capacity UE ( “RedCap UE” ) , a mid-tier UE, an NR-Light UE, and/or an NR-Lite UE, among other examples.
- RedCap UEs may bridge a gap between the capability and complexity of NB-IoT devices and/or eMTC UEs, and mission-critical IoT devices and/or premium UEs.
- RedCap UEs may include, for example, wearable devices, IoT devices, industrial sensors, and/or cameras that are associated with a limited bandwidth, power capacity, and/or transmission range, among other examples.
- RedCap UEs may support healthcare environments, building automation, electrical distribution, process automation, transport and logistics, and/or smart city deployments, among other examples.
- two or more UEs 120 may communicate directly with one another using sidelink communications (for example, without communicating by way of a network node 110 as an intermediary) .
- the UE 120a may directly transmit data, control information, or other signaling as a sidelink communication to the UE 120e. This is in contrast to, for example, the UE 120a first transmitting data in an UL communication to a network node 110, which then transmits the data to the UE 120e in a DL communication.
- some of the network nodes 110 and the UEs 120 of the wireless communication network 100 may be configured for full-duplex operation in addition to half-duplex operation.
- a network node 110 or a UE 120 operating in a half- duplex mode may perform only one of transmission or reception during particular time resources, such as during particular slots, symbols, or other time periods.
- Half-duplex operation may involve time-division duplexing (TDD) , in which DL transmissions of the network node 110 and UL transmissions of the UE 120 do not occur in the same time resources (that is, the transmissions do not overlap in time) .
- TDD time-division duplexing
- a network node 110 or a UE 120 operating in a full-duplex mode can transmit and receive communications concurrently (for example, in the same time resources) .
- network nodes 110 and/or UEs 120 may generally increase the capacity of the network and the radio access link.
- full-duplex operation may involve frequency-division duplexing (FDD) , in which DL transmissions of the network node 110 are performed in a first frequency band or on a first component carrier and transmissions of the UE 120 are performed in a second frequency band or on a second component carrier different than the first frequency band or the first component carrier, respectively.
- FDD frequency-division duplexing
- full-duplex operation may be enabled for a UE 120 but not for a network node 110.
- a UE 120 may simultaneously transmit an UL transmission to a first network node 110 and receive a DL transmission from a second network node 110 in the same time resources.
- full-duplex operation may be enabled for a network node 110 but not for a UE 120.
- a network node 110 may simultaneously transmit a DL transmission to a first UE 120 and receive an UL transmission from a second UE 120 in the same time resources.
- full-duplex operation may be enabled for both a network node 110 and a UE 120.
- the UEs 120 and the network nodes 110 may perform MIMO communication.
- MIMO generally refers to transmitting or receiving multiple signals (such as multiple layers or multiple data streams) simultaneously over the same time and frequency resources.
- MIMO techniques generally exploit multipath propagation.
- MIMO may be implemented using various spatial processing or spatial multiplexing operations.
- MIMO may support simultaneous transmission to multiple receivers, referred to as multi-user MIMO (MU-MIMO) .
- MU-MIMO multi-user MIMO
- Some RATs may employ advanced MIMO techniques, such as mTRP operation (including redundant transmission or reception on multiple TRPs) , reciprocity in the time domain or the frequency domain, single-frequency-network (SFN) transmission, or non-coherent joint transmission (NC-JT) .
- mTRP operation including redundant transmission or reception on multiple TRPs
- SFN single-frequency-network
- NC-JT non-coherent joint transmission
- the communication manager 140 may receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; receive, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and transmit, to the network node, an SRS based at
- the network node 110 may include a communication manager 150.
- the communication manager 150 may transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and receive, from the UE, an SRS based at least in part on the TPC command being applied to the first S
- the communication manager 150 may transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and receive, from the UE, an SRS based at least in part
- Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
- Fig. 2 is a diagram illustrating an example network node 110 in communication with an example UE 120 in a wireless network in accordance with the present disclosure.
- one or a combination of the antenna (s) 234, the modem (s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 214, and/or the TX MIMO processor 216 may be included in a transceiver of the network node 110.
- the transceiver may be under control of and used by one or more processors, such as the controller/processor 240, and in some aspects in conjunction with processor-readable code stored in the memory 242, to perform aspects of the methods, processes, and/or operations described herein.
- the network node 110 may include one or more interfaces, communication components, and/or other components that facilitate communication with the UE 120 or another network node.
- processors may refer to one or more controllers and/or one or more processors.
- processors may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and/or controller/processor 240.
- processors of the UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and/or controller/processor 280.
- the transmit processor 214 may receive data ( “downlink data” ) intended for the UE 120 (or a set of UEs that includes the UE 120) from the data source 212 (such as a data pipeline or a data queue) .
- the transmit processor 214 may select one or more MCSs for the UE 120 in accordance with one or more channel quality indicators (CQIs) received from the UE 120.
- the network node 110 may process the data (for example, including encoding the data) for transmission to the UE 120 on a downlink in accordance with the MCS (s) selected for the UE 120 to generate data symbols.
- the transmit processor 214 may process system information (for example, semi-static resource partitioning information (SRPI) ) and/or control information (for example, CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and/or control symbols.
- the transmit processor 214 may generate reference symbols for reference signals (for example, a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , or a channel state information (CSI) reference signal (CSI-RS) ) and/or synchronization signals (for example, a primary synchronization signal (PSS) or a secondary synchronization signals (SSS) ) .
- reference signals for example, a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , or a channel state information (CSI) reference signal (CSI-RS)
- CSI-RS channel state information reference signal
- synchronization signals for example, a primary synchronization signal (PSS) or a secondary synchronization signals (SSS)
- Each modem 232 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and/or upconvert) the output sample stream to obtain a time domain downlink signal.
- the modems 232a through 232t may together transmit a set of downlink signals (for example, T downlink signals) via the corresponding set of antennas 234.
- a downlink signal may include a DCI communication, a MAC control element (MAC-CE) communication, an RRC communication, a downlink reference signal, or another type of downlink communication.
- Downlink signals may be transmitted on a PDCCH, a PDSCH, and/or on another downlink channel.
- a downlink signal may carry one or more transport blocks (TBs) of data.
- a TB may be a unit of data that is transmitted over an air interface in the wireless communication network 100.
- a data stream (for example, from the data source 212) may be encoded into multiple TBs for transmission over the air interface. The quantity of TBs used to carry the data associated with a particular data stream may be associated with a TB size common to the multiple TBs.
- the TB size may be based on or otherwise associated with radio channel conditions of the air interface, the MCS used for encoding the data, the downlink resources allocated for transmitting the data, and/or another parameter.
- the larger the TB size the greater the amount of data that can be transmitted in a single transmission, which reduces signaling overhead.
- larger TB sizes may be more prone to transmission and/or reception errors than smaller TB sizes, but such errors may be mitigated by more robust error correction techniques.
- the network node 110 may use the scheduler 246 to schedule one or more UEs 120 for downlink or uplink communications.
- the scheduler 246 may use DCI to dynamically schedule DL transmissions to the UE 120 and/or UL transmissions from the UE 120.
- the scheduler 246 may allocate recurring time domain resources and/or frequency domain resources that the UE 120 may use to transmit and/or receive communications using an RRC configuration (for example, a semi-static configuration) , for example, to perform semi-persistent scheduling (SPS) or to configure a configured grant (CG) for the UE 120.
- RRC configuration for example, a semi-static configuration
- SPS semi-persistent scheduling
- CG configured grant
- the UE 120 may include a set of antennas 252 (shown as antennas 252a through 252r, where r ⁇ 1) , a set of modems 254 (shown as modems 254a through 254u, where u ⁇ 1) , a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller/processor 280, a memory 282, and/or a communication manager 140, among other examples.
- One or more of the components of the UE 120 may be included in a housing 284.
- one or a combination of the antenna (s) 252, the modem (s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266 may be included in a transceiver that is included in the UE 120.
- the transceiver may be under control of and used by one or more processors, such as the controller/processor 280, and in some aspects in conjunction with processor-readable code stored in the memory 282, to perform aspects of the methods, processes, or operations described herein.
- the UE 120 may include another interface, another communication component, and/or another component that facilitates communication with the network node 110 and/or another UE 120.
- the set of antennas 252 may receive the downlink communications or signals from the network node 110 and may provide a set of received downlink signals (for example, R received signals) to the set of modems 254.
- each received signal may be provided to a respective demodulator component (shown as DEMOD) of a modem 254.
- DEMOD demodulator component
- Each modem 254 may use the respective demodulator component to condition (for example, filter, amplify, downconvert, and/or digitize) a received signal to obtain input samples.
- Each modem 254 may use the respective demodulator component to further demodulate or process the input samples (for example, for OFDM) to obtain received symbols.
- the MIMO detector 256 may obtain received symbols from the set of modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols.
- the receive processor 258 may process (for example, decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260 (which may include a data pipeline, a data queue, and/or an application executed on the UE 120) , and may provide decoded control information and system information to the controller/processor 280.
- the transmit processor 264 may receive and process data ( “uplink data” ) from a data source 262 (such as a data pipeline, a data queue, and/or an application executed on the UE 120) and control information from the controller/processor 280.
- the control information may include one or more parameters, feedback, one or more signal measurements, and/or other types of control information.
- the receive processor 258 and/or the controller/processor 280 may determine, for a received signal (such as received from the network node 110 or another UE) , one or more parameters relating to transmission of the uplink communication.
- the transmit processor 264 may generate reference symbols for one or more reference signals, such as an uplink DMRS, an uplink sounding reference signal (SRS) , and/or another type of reference signal.
- the symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, and further processed by the set of modems 254 (for example, for DFT-s-OFDM or CP-OFDM) .
- the TX MIMO processor 266 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, U output symbol streams) to the set of modems 254.
- each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 254.
- Each modem 254 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for OFDM) to obtain an output sample stream.
- Each modem 254 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and/or upconvert) the output sample stream to obtain an uplink signal.
- the modems 254a through 254u may transmit a set of uplink signals (for example, R uplink signals or U uplink symbols) via the corresponding set of antennas 252.
- An uplink signal may include a UCI communication, a MAC-CE communication, an RRC communication, or another type of uplink communication.
- Uplink signals may be transmitted on a PUSCH, a PUCCH, and/or another type of uplink channel.
- An uplink signal may carry one or more TBs of data.
- Sidelink data and control transmissions may generally use similar techniques as were described for uplink data and control transmission, and may use sidelink-specific channels such as a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and/or a physical sidelink feedback channel (PSFCH) .
- PSSCH physical sidelink shared channel
- PSCCH physical sidelink control channel
- PSFCH physical sidelink feedback channel
- One or more antennas of the set of antennas 252 or the set of antennas 234 may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples.
- An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of Fig. 2.
- antenna can refer to one or more antennas, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays.
- Antenna panel can refer to a group of antennas (such as antenna elements) arranged in an array or panel, which may facilitate beamforming by manipulating parameters of the group of antennas.
- Antenna module may refer to circuitry including one or more antennas, which may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.
- each of the antenna elements of an antenna 234 or an antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals.
- a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals.
- the antenna elements may include patch antennas, dipole antennas, and/or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern.
- a spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere constructively and destructively along various directions (such as to form a desired beam) .
- the spacing may provide a quarter wavelength, a half wavelength, or another fraction of a wavelength of spacing between neighboring antenna elements to allow for the desired constructive and destructive interference patterns of signals transmitted by the separate antenna elements within that expected range.
- the amplitudes and/or phases of signals transmitted via antenna elements and/or sub-elements may be modulated and shifted relative to each other (such as by manipulating phase shift, phase offset, and/or amplitude) to generate one or more beams, which is referred to as beamforming.
- beam may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction.
- Beam may also generally refer to a direction associated with such a directional signal transmission, a set of directional resources associated with the signal transmission (for example, an angle of arrival, a horizontal direction, and/or a vertical direction) , and/or a set of parameters that indicate one or more aspects of a directional signal, a direction associated with the signal, and/or a set of directional resources associated with the signal.
- antenna elements may be individually selected or deselected for directional transmission of a signal (or signals) by controlling amplitudes of one or more corresponding amplifiers and/or phases of the signal (s) to form one or more beams.
- the shape of a beam (such as the amplitude, width, and/or presence of side lobes) and/or the direction of a beam (such as an angle of the beam relative to a surface of an antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and/or amplitudes of the multiple signals relative to each other.
- Different UEs 120 or network nodes 110 may include different numbers of antenna elements.
- a UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or a different number of antenna elements.
- a network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or a different number of antenna elements.
- a larger number of antenna elements may provide increased control over parameters for beam generation relative to a smaller number of antenna elements, whereas a smaller number of antenna elements may be less complex to implement and may use less power than a larger number of antenna elements.
- Multiple antenna elements may support multiple-layer transmission, in which a first layer of a communication (which may include a first data stream) and a second layer of a communication (which may include a second data stream) are transmitted using the same time and frequency resources with spatial multiplexing.
- While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components.
- the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of the controller/processor 280.
- Fig. 3 is a diagram illustrating an example disaggregated base station architecture 300 in accordance with the present disclosure.
- One or more components of the example disaggregated base station architecture 300 may be, may include, or may be included in one or more network nodes (such one or more network nodes 110) .
- the disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link, or that can communicate indirectly with the core network 320 via one or more disaggregated control units, such as a Non-RT RIC 350 associated with a Service Management and Orchestration (SMO) Framework 360 and/or a Near-RT RIC 370 (for example, via an E2 link) .
- SMO Service Management and Orchestration
- the CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via F1 interfaces.
- Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links.
- Each of the RUs 340 may communicate with one or more UEs 120 via respective RF access links.
- a UE 120 may be simultaneously served by multiple RUs 340.
- the CU 310 may be logically split into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units.
- a CU-UP unit may communicate bidirectionally with a CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration.
- the CU 310 may be deployed to communicate with one or more DUs 330, as necessary, for network control and signaling.
- Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340.
- a DU 330 may host various layers, such as an RLC layer, a MAC layer, or one or more PHY layers, such as one or more high PHY layers or one or more low PHY layers.
- Each layer (which also may be referred to as a module) may be implemented with an interface for communicating signals with other layers (and modules) hosted by the DU 330, or for communicating signals with the control functions hosted by the CU 310.
- Each RU 340 may implement lower layer functionality. In some aspects, real-time and non-real-time aspects of control and user plane communication with the RU (s) 340 may be controlled by the corresponding DU 330.
- the SMO Framework 360 may support RAN deployment and provisioning of non-virtualized and virtualized network elements.
- the SMO Framework 360 may support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface, such as an O1 interface.
- the SMO Framework 360 may interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface, such as an O2 interface.
- a cloud computing platform such as an open cloud (O-Cloud) platform 390
- network element life cycle management such as to instantiate virtualized network elements
- a virtualized network element may include, but is not limited to, a CU 310, a DU 330, an RU 340, a non-RT RIC 350, and/or a Near-RT RIC 370.
- the SMO Framework 360 may communicate with a hardware aspect of a 4G RAN, a 5G NR RAN, and/or a 6G RAN, such as an open eNB (O-eNB) 380, via an O1 interface. Additionally or alternatively, the SMO Framework 360 may communicate directly with each of one or more RUs 340 via a respective O1 interface. In some deployments, this configuration can enable each DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
- the Non-RT RIC 350 may include or may implement a logical function that enables non-real-time control and optimization of RAN elements and resources, AI/ML workflows including model training and updates, and/or policy-based guidance of applications and/or features in the Near-RT RIC 370.
- the Non-RT RIC 350 may be coupled to or may communicate with (such as via an A1 interface) the Near-RT RIC 370.
- the Near-RT RIC 370 may include or may implement a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions via an interface (such as via an E2 interface) connecting one or more CUs 310, one or more DUs 330, and/or an O-eNB with the Near-RT RIC 370.
- the Non-RT RIC 350 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 370 and may be received at the SMO Framework 360 or the Non-RT RIC 350 from non-network data sources or from network functions. In some examples, the Non-RT RIC 350 or the Near-RT RIC 370 may tune RAN behavior or performance. For example, the Non-RT RIC 350 may monitor long-term trends and patterns for performance and may employ AI/ML models to perform corrective actions via the SMO Framework 360 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies) .
- SMO Framework 360 such as reconfiguration via an O1 interface
- RAN management policies such as A1 interface policies
- Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
- the network node 110, the controller/processor 240 of the network node 110, the UE 120, the controller/processor 280 of the UE 120, the CU 310, the DU 330, the RU 340, or any other component (s) of Figs. 1, 2, or 3 may implement one or more techniques or perform one or more operations associated with DCI format 2_3 scrambled by (e.g., having a CRC scrambled by) different TPC-SRS-RNTIs, as described in more detail elsewhere herein.
- the CU 310, the DU 330, or the RU 340 may perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, process 900 of Fig. 9, process 1000 of Fig. 10, or other processes as described herein (alone or in conjunction with one or more other processors) .
- the memory 242 may store data and program codes for the network node 110, the network node 110, the CU 310, the DU 330, or the RU 340.
- the memory 282 may store data and program codes for the UE 120.
- the memory 242 or the memory 282 may include a non-transitory computer-readable medium storing a set of instructions (for example, code or program code) for wireless communication.
- the memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) .
- the memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) .
- the set of instructions when executed (for example, directly, or after compiling, converting, or interpreting) by one or more processors of the network node 110, the UE 120, the CU 310, the DU 330, or the RU 340, may cause the one or more processors to perform process 700 of Fig. 7, process 800 of Fig. 8, process 900 of Fig. 9, process 1000 of Fig. 10, or other processes as described herein.
- executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.
- a UE (e.g., the UE 120) includes means for receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; means for receiving, from the network node, downlink control information (DCI) that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and/or means for transmit, to the network node, an SRS based at least in part on applying the TPC
- a UE (e.g., the UE 120) includes means for receiving, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; means for receiving, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI;
- the means for the UE to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller/processor 280, or memory 282.
- a network node (e.g., the network node 110) includes means for transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; means for transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and/or means for receiving, from the UE, an SRS based at least in part on the TPC command being applied to the first
- the means for the network node to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
- a network node (e.g., the network node 110) includes means for transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; means for transmitting, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RN
- the means for the network node to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
- Figs. 4A and 4B are diagrams illustrating examples 400 of carrier aggregation, in accordance with the present disclosure.
- Carrier aggregation is a technology that enables two or more component carriers (CCs, sometimes referred to as carriers) to be combined (e.g., into a single channel) for a single UE 120 to enhance data capacity. As shown, carriers can be combined in the same or different frequency bands. Additionally, or alternatively, contiguous or non-contiguous carriers can be combined.
- a network node 110 may configure carrier aggregation for a UE 120, such as in a radio resource control (RRC) message, downlink control information (DCI) , and/or another signaling message.
- RRC radio resource control
- DCI downlink control information
- carrier aggregation may be configured in an intra-band contiguous mode where the aggregated carriers are contiguous to one another and are in the same band.
- carrier aggregation may be configured in an intra-band non-contiguous mode where the aggregated carriers are non-contiguous to one another and are in the same band.
- carrier aggregation may be configured in an inter-band non-contiguous mode where the aggregated carriers are non-contiguous to one another and are in different bands.
- a UE 120 may be configured with a primary carrier or primary cell (PCell) and one or more secondary carriers or secondary cells (SCells) .
- the primary carrier may carry control information (e.g., downlink control information and/or scheduling information) for scheduling data communications on one or more secondary carriers, which may be referred to as cross-carrier scheduling.
- a carrier e.g., a primary carrier or a secondary carrier
- carrier aggregation may be configured where the aggregated component carriers have mixed component carrier modes.
- the aggregated component carriers may include two Mode-1 component carriers (e.g., CC0 and CC1, as shown in Fig. 4B) and two Mode-2 component carriers (e.g., CC2 and CC3, as shown in Fig. 4B) .
- the TPC commands corresponding to component carrier CC2 and component carrier CC3 in the DCI format 2_3 with the CRC scrambled by the second TPC-SRS-RNTI may be unused.
- FIGS. 4A and 4B are provided as an example. Other examples may differ from what is described with regard to Figs. 4A and 4B.
- Figs. 5A and 5B are diagrams illustrating an example 500 associated with DCI format 2_3 with a CRC scrambled by different TPC-SRS-RNTIs, in accordance with the present disclosure.
- a network node 110 and a UE 120 may communicate with one another.
- the UE 120 may be configured with four uplink component carriers (e.g., component carriers CC0-CC3, as shown in Fig. 5) .
- component carriers CC0 and CC1 may comprise Mode-1 component carriers configured with two SRS closed-loop power control adjustment states
- component carriers CC2 and CC3 may comprise Mode-2 component carriers configured with one SRS closed-loop power control adjustment state.
- the configuration information may indicate that a first TPC-SRS-RNTI is associated with the first SRS closed-loop power control adjustment state and a second TPC-SRS-RNTI is associated with the second SRS closed-loop power control adjustment state.
- the first SRS closed-loop power control adjustment state may be associated with a first closed-loop power control adjustment state index
- the second SRS closed-loop power control adjustment state may be associated with a second closed-loop power control adjustment state index.
- the configuration information may indicate that the first TPC-SRS-RNTI is associated with the first closed-loop power control adjustment state index and that the second TPC-SRS-RNTI is associated with the second closed-loop power control adjustment state index.
- the UE 120 may determine (and/or the configuration information may indicate) that a DCI format 2_3 with a CRC scrambled by the first TPC-SRS-RNTI indicates that TPC commands indicated in the DCI format 2_3 are to be applied to the first SRS closed-loop power control adjustment state and that a DCI format 2_3 with a CRC scrambled by the second TPC-SRS-RNTI indicates that TPC commands indicated in the DCI format 2_3 are to be applied to the second SRS closed-loop power control adjustment state, based at least in part on the first TPC-SRS-RNTI being associated with the first closed-loop power control adjustment state index and the second TPC-SRS-RNTI being associated with the second closed-loop power control adjustment state index.
- the network node 110 may transmit, and the UE 120 may receive, a DCI format 2_3 with a CRC scrambled by the second TPC-SRS-RNTI.
- the DCI format 2_3 may include one or more TypeA blocks or one or more TypeB blocks.
- a type of block included in the DCI format 2_3 may be indicated in the configuration information.
- the DCI format 2_3 may include a plurality of TypeB blocks (e.g., Blocks 1-N, as shown in Fig. 5B) .
- Each block may be associated with a respective component carrier and may indicate a TPC command for the respective component carrier.
- the UE 120 may determine a location of a block with the DCI format 2_3 based at least in part on a starting position. In some implementations, the starting position for a block may be indicated in the configuration information.
- the configuration information may indicate a starting position 525 corresponding to a block that includes a TPC command associated with component carrier CC0, a starting position 530 corresponding to a block that includes a TPC command associated with component carrier CC1, a starting position 535 corresponding to a block that includes a TPC command associated with component carrier CC2, and a starting position 540 corresponding to a block that includes a TPC command associated with component carrier CC3.
- the DCI format 2_3 may include a TypeA block.
- the UE 120 may be associated with a particular block (e.g., Block 1) .
- the configuration information may indicate a same starting position of a block associated with the UE 120 for CC0 to CC3.
- the UE 120 may identify the block associated with the UE 120 based at least in part on the starting position indicated in the configuration information.
- the UE 120 may apply the TPC commands indicated by the DCI format 2_3 to the corresponding component carriers CC0-CC3.
- the DCI format 2_3 may include the plurality of TypeB blocks, and the UE 120 may apply the TPC commands indicated by the TypeB blocks to an SRS closed-loop power control adjustment state of the respective component carrier associated with each TypeB block.
- the UE 120 may apply the TPC command indicated by the first TypeB block and the TPC command indicated by the second TypeB block to the second SRS closed-loop power control adjustment state of component carrier CC0 and component carrier CC1, respectively, based at least in part on the DCI format 2_3 having the CRC scrambled by the second TPC-SRS-RNTI.
- the UE 120 may apply the TPC command indicated by the third TypeB block and the TPC command indicated by the fourth TypeB block to the first SRS closed-loop power control adjustment state of component carrier CC2 and component carrier CC3, respectively, based at least in part on component carrier CC2 and component carrier CC3 being configured with a single SRS closed-loop power control adjustment state.
- the UE 120 may apply the TPC command indicated in the DCI format 2_3 to the single SRS closed-loop power control adjustment state configured for the component carriers regardless of with which TPC-SRS-RNTI the CRC is scrambled (e.g., the TPC command may be applied to the single SRS closed-loop power control adjustment state configured for the component carriers when the DCI format 2_3 has a CRC scrambled by the first TPC-SRS-RNTI or when the DCI format 2_3 has a CRC scrambled by the second TPC-SRS-RNTI) .
- the DCI format 2_3 may include a TypeA block associated with the UE 120, and the UE 120 may apply the TPC commands indicated by the TPC command fields to an SRS closed-loop power control adjustment state of the respective component carrier associated with each TPC command field.
- the UE 120 may apply the TPC command indicated by the first TPC command field and the TPC command indicated by the second TPC command field to the second SRS closed-loop power control adjustment state of component carrier CC0 and component carrier CC1, respectively, based at least in part on the DCI format 2_3 having the CRC scrambled by the second TPC-SRS-RNTI.
- FIGS. 5A and 5B are provided as an example. Other examples may differ from what is described with respect to Figs. 5A and 5B.
- Fig. 6 is a diagram illustrating an example 600 associated with DCI format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states, in accordance with the present disclosure.
- a network node 110 and a UE 120 may communicate with one another.
- the configuration information may configure the UE 120 with different sets of uplink component carriers for different SRS closed-loop power control adjustment states. For example, the configuration information may configure a first sets of component carriers with the first SRS closed-loop power control adjustment state and may configure a second sets of uplink component carriers with the second SRS closed-loop power control adjustment state.
- the configuration information may comprise a first SRS-TPC-physical downlink control channel (PDCCH) -Config entry corresponding to the first SRS closed-loop power control adjustment state and a second SRS-TPC-PDCCH-Config entry corresponding to the second SRS closed-loop power control adjustment state.
- PDCH physical downlink control channel
- the configuration information may indicate a first cc-SetIndex and a first cc-IndexInOneCC-Set corresponding to the first SRS closed-loop power control adjustment state, and a second cc-SetIndex and a second cc- IndexInOneCC-Set corresponding to the second SRS closed-loop power control adjustment state.
- the configuration information may include a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- the configuration information may include a field (e.g., a fieldTypeFormat2-3 field) that indicates whether an SRS request field is present, and the field may be applied to both the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- the UE 120 may determine that an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state. In this case, the UE 120 may determine the SRS request field is always not present in the DCI format 2_3 associated with the first closed-loop power control adjustment state based at least in part on the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- the configuration information may include a first field and a second field.
- the first field may indicate whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the second field may indicate whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- the configuration information may comprise an SRS-TPC-CommandConfig.
- the SRS-TPC-CommandConfig may include a first fieldTypeFormat2-3 field indicating whether the SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and a second fieldTypeFormat2-3 field indicating whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- the network node 110 may transmit, and the UE 120 may receive, a DCI format 2_3.
- the DCI format 2_3 may include a CRC scrambled by a TPC-SRS-RNTI.
- the UE 120 may determine a starting location associated with a TPC command in the DCI format 2_3 for the uplink component carrier.
- the UE 120 may determine to use the first starting location or the second starting location in the DCI format 2_3 for the uplink component carrier as described elsewhere herein.
- the UE 120 may determine the TPC command based at least in part on the starting location.
- the UE 120 may determine whether the uplink component carrier is associated with the first starting location or the second starting location based at least in part on the TPC-SRS-RNTI. For example, the UE 120 may determine that the uplink component carrier is associated with the first starting location when the DCI format 2_3 includes a CRC scrambled by a first TPC-SRS-RNTI. The UE 120 may determine that the uplink component carrier is associated with the second starting location when the DCI format 2_3 includes a CRC scrambled by a second TPC-SRS-RNTI.
- the UE 120 may determine whether the uplink component carrier is associated with the first starting location or the second starting location based at least in part on a cell associated with receiving the DCI format 2_3. For example, the UE 120 may determine that the uplink component carrier is associated with the first starting location based at least in part on the DCI format 2_3 being detected in a first monitoring cell. The UE 120 may determine that the uplink component carrier is associated with the second starting location based at least in part on the DCI format 2_3 being detected in a second monitoring cell.
- the UE 120 may apply the TPC command to the uplink component carrier.
- the UE 120 may apply the TPC command to the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state based at least in part on whether the TPC command is associated with the first starting location or the second starting location.
- the UE 120 may apply the TPC command to the first closed-loop power control adjustment state when the TPC command is associated with the first starting location.
- the UE 120 may apply the TPC command to the second closed-loop power control adjustment state when the TPC command is associated with the second starting location.
- the UE 120 may transmit an SRS via the uplink component carrier.
- the UE 120 may transmit the SRS via the uplink component carrier based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state.
- Fig. 6 is provided as an example. Other examples may differ from what is described with respect to Fig. 6.
- Fig. 7 is a diagram illustrating an example process 700 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
- Example process 700 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with DCI format 2_3 scrambled by different TPC-SRS-RNTIs.
- process 700 may include receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state (block 710) .
- the UE may receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state, as described above.
- process 700 may include receiving, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI (block 720) .
- the UE e.g., using reception component 1102 and/or communication manager 1106, depicted in Fig. 11
- process 700 may include transmitting, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier (block 730) .
- the UE e.g., using transmission component 1104 and/or communication manager 1106, depicted in Fig. 11
- Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
- the DCI comprises a DCI format 2_3 message.
- process 700 includes applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier based at least in part on the second component carrier being configured with a single SRS closed-loop power control adjustment state.
- the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
- the DCI includes a plurality of blocks of a first type, and each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
- process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.
- Fig. 8 is a diagram illustrating an example process 800 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
- Example process 800 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with DCI format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states.
- the UE may receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state, as described above.
- process 800 may include receiving, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI (block 820) .
- the UE e.g., using reception component 1102 and/or communication manager 1106, depicted in Fig. 11
- process 800 may include transmitting, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier (block 830) .
- the UE e.g., using transmission component 1104 and/or communication manager 1106, depicted in Fig.
- the 11) may transmit, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier, as described above.
- the TPC command in the DCI format 2_3 is based on the first starting location based at least in part the DCI format 2_3 being detected in a first monitoring cell, and the TPC command in the DCI format 2_3 is based on the second starting location based at least in part on the DCI format 2_3 being detected in a second monitoring cell.
- process 900 may include transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state (block 910) .
- the network node may transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state, as described above.
- process 900 may include transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI (block 920) .
- the network node e.g., using transmission component 1204 and/or communication manager 1206, depicted in Fig. 12
- process 900 may include receiving, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier (block 930) .
- the network node e.g., using reception component 1202 and/or communication manager 1206, depicted in Fig. 12
- the DCI comprises a DCI format 2_3 message.
- the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
- process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 9. Additionally, or alternatively, two or more of the blocks of process 900 may be performed in parallel.
- Fig. 10 is a diagram illustrating an example process 1000 performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure.
- Example process 1000 is an example where the apparatus or the network node (e.g., network node 110) performs operations associated with dci format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states.
- the apparatus or the network node e.g., network node 110
- process 1000 may include receiving, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier (block 1030) .
- the network node e.g., using reception component 1202 and/or communication manager 1206, depicted in Fig. 12
- the apparatus 1100 may be configured to perform one or more operations described herein in connection with Figs. 4A, 4B, 5A, 5B, and 6. Additionally, or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as process 700 of Fig. 7, process 800 of Fig. 8, or a combination thereof.
- the apparatus 1100 and/or one or more components shown in Fig. 11 may include one or more components of the UE described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 11 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
- the communication manager 1106 may support operations of the reception component 1102 and/or the transmission component 1104. For example, the communication manager 1106 may receive information associated with configuring reception of communications by the reception component 1102 and/or transmission of communications by the transmission component 1104. Additionally, or alternatively, the communication manager 1106 may generate and/or provide control information to the reception component 1102 and/or the transmission component 1104 to control reception and/or transmission of communications.
- the reception component 1102 may receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- the reception component 1102 may receive, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI.
- the transmission component 1104 may transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- the reception component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1208.
- the reception component 1202 may provide received communications to one or more other components of the apparatus 1200.
- the reception component 1202 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1200.
- the reception component 1202 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers/processors, one or more memories, or a combination thereof, of the network node described in connection with Fig. 2.
- the reception component 1202 and/or the transmission component 1204 may include or may be included in a network interface.
- the network interface may be configured to obtain and/or output signals for the apparatus 1200 via one or more communications links, such as a backhaul link, a midhaul link, and/or a fronthaul link.
- the transmission component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1208.
- one or more other components of the apparatus 1200 may generate communications and may provide the generated communications to the transmission component 1204 for transmission to the apparatus 1208.
- the transmission component 1204 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to- analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1208.
- the transmission component 1204 may transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state.
- the transmission component 1204 may transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI.
- the reception component 1202 may receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- the transmission component 1204 may transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state.
- the transmission component 1204 may transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI.
- the reception component 1202 may receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
- a method of wireless communication performed by a UE comprising: receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; receiving, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state
- Aspect 2 The method of Aspect 1, wherein the DCI comprises a DCI format 2_3 message.
- Aspect 4 The method of any of Aspects 1-3, wherein the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
- Aspect 9 The method of any of Aspects 7-8, wherein the TPC command in the DCI format 2_3 is based on the first starting location based at least in part the DCI format 2_3 being detected in a first monitoring cell, and wherein the TPC command in the DCI format 2_3 is based on the second starting location based at least in part on the DCI format 2_3 being detected in a second monitoring cell.
- Aspect 12 The method of any of Aspects 7-11, wherein receiving the configuration for the uplink component carrier comprises: receiving a first configuration for the uplink component carrier, wherein the first configuration indicates the first starting location; and receiving a second configuration for the uplink component carrier, wherein the second configuration indicates the second starting location.
- Aspect 14 The method of Aspect 13, wherein the configuration for the uplink component carrier comprises a first SRS-TPC-PDCCH-Config entry corresponding to the first SRS closed-loop power control adjustment state and a second SRS-TPC- PDCCH-Config entry corresponding to the second SRS closed-loop power control adjustment state.
- Aspect 16 The method of any of Aspects 7-15, wherein the configuration includes a list of component carrier set indexes corresponding to a plurality of component carrier sets, and wherein the list of component carrier set indexes configures each component carrier set, of the plurality of component carrier sets, with the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state.
- Aspect 17 The method of any of Aspects 7-16, wherein the configuration indicates a first cc-SetIndex and a first cc-IndexInOneCC-Set corresponding to the first SRS closed-loop power control adjustment state and a second cc-SetIndex and a second cc-IndexInOneCC-Set corresponding to the second SRS closed-loop power control adjustment state.
- Aspect 18 The method of any of Aspects 7-17, wherein the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- Aspect 19 The method of Aspect 18, wherein the field comprises a fieldTypeFormat2-3 field.
- Aspect 20 The method of any of Aspects 7-19, wherein the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state or the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- Aspect 23 The method of any of Aspects 7-22, wherein the configuration includes a first field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and a second field indicating whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- Aspect 25 The method of any of Aspects 7-24, wherein receiving the configuration for the uplink component carrier includes: receiving a first configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, and receiving a second configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- a method of wireless communication performed by a network node comprising: transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and receiving, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state
- Aspect 27 The method of Aspect 26, wherein the DCI comprises a DCI format 2_3 message.
- Aspect 28 The method of any of Aspects 26-27, wherein the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
- Aspect 29 The method of any of Aspects 26-28, wherein the DCI includes a plurality of blocks of a first type, and wherein each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
- Aspect 30 The method of any of Aspects 26-29, wherein the DCI includes a single block of a second type that indicates a plurality of TPC commands for the plurality of component carriers where each TPC command is corresponding to a respective component carrier of the plurality of component carriers.
- a method of wireless communication performed by a network node comprising: transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; transmitting, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and receiving, from
- Aspect 32 An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method of one or more of Aspects 1-31.
- Aspect 33 An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors configured to cause the device to perform the method of one or more of Aspects 1-31.
- Aspect 35 A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform the method of one or more of Aspects 1-31.
- Aspect 36 A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-31.
- Aspect 38 An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to cause the device to perform the method of one or more of Aspects 1-31.
- a component being configured to perform a function means that the component has a capability to perform the function, and does not require the function to be actually performed by the component, unless noted otherwise.
- satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples.
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a power control configuration for a plurality of component carriers. The power control configuration may indicate first and second TPC-SRS-RNTIs. The plurality of component carriers may include first and second component carriers. The first component carrier may configured with first and second closed-loop power control (CLPC) adjustment states and the second component carrier may be configured with the first CLPC adjustment state. The UE may receive downlink control information (DCI) that indicates a TPC command for the second component carrier. The DCI may be scrambled by the first or the second TPC-SRS-RNTI. The UE may transmit an SRS based at least in part on applying the TPC command to the first closed-loop power control adjustment state corresponding to the second component carrier. Numerous other aspects are described.
Description
FIELD OF THE DISCLOSURE
Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods for a downlink control information format 2_3 scrambled by different transmit power control sounding reference signal radio network temporary identifiers.
Wireless communication systems are widely deployed to provide various services that may include carrying voice, text, messaging, video, data, and/or other traffic. The services may include unicast, multicast, and/or broadcast services, among other examples. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and/or device transmit power, among other examples) . Examples of such multiple-access RATs include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
The above multiple-access RATs have been adopted in various telecommunication standards to provide common protocols that enable different wireless communication devices to communicate on a municipal, national, regional, or global level. An example telecommunication standard is New Radio (NR) . NR, which may also be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . NR (and other mobile broadband evolutions beyond NR) may be designed to better support Internet of things (IoT) and reduced capability device deployments, industrial connectivity, millimeter wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployment, sidelink and other device-to-device direct
communication technologies (for example, cellular vehicle-to-everything (CV2X) communication) , massive multiple-input multiple-output (MIMO) , disaggregated network architectures and network topology expansions, multiple-subscriber implementations, high-precision positioning, and/or radio frequency (RF) sensing, among other examples. As the demand for mobile broadband access continues to increase, further improvements in NR may be implemented, and other radio access technologies such as 6G may be introduced, to further advance mobile broadband evolution.
Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE) . The method may include receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first transmit power control (TPC) sounding reference signal (SRS) radio network temporary identifier (RNTI) and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The method may include receiving, from the network node, downlink control information (DCI) that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The method may include transmitting, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format
2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The method may include receiving, from the network node, the DCI format 2_3 with a cyclic redundancy check (CRC) scrambled by a TPC-SRS-RNTI. The method may include transmitting, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The method may include transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The method may include receiving, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI
format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The method may include transmitting, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The method may include receiving, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a one or more instructions that, when executed by one or more processors of a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI
format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The set of instructions, when executed by one or more processors of the network node, may cause the network node to transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The set of instructions, when executed by one or more processors of the network node, may cause the network node to receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node,
may cause the network node to transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The set of instructions, when executed by one or more processors of the network node, may cause the network node to transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The set of instructions, when executed by one or more processors of the network node, may cause the network node to receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The one or more processors may be configured to receive, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The one or more processors may be configured to transmit, to the network node, an SRS based at least in part on applying the TPC command to the
first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The one or more processors may be configured to receive, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The one or more processors may be configured to transmit, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Some aspects described herein relate to a network node for wireless communication. The network node may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The one or more processors may be configured to transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-
SRS-RNTI. The one or more processors may be configured to receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to a network node for wireless communication. The network node may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The one or more processors may be configured to transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The one or more processors may be configured to receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The apparatus may include means for receiving, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The
apparatus may include means for transmitting, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The apparatus may include means for receiving, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The apparatus may include means for transmitting, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The apparatus may include means for transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The apparatus may include means for receiving, from the UE, an SRS based at least in part on the TPC command being
applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The one or more processors may be configured to transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The apparatus may include means for receiving, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Aspects of the present disclosure may generally be implemented by or as a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network node, network entity, wireless communication device, and/or processing system as substantially described with reference to, and as illustrated by, the specification and accompanying drawings.
The foregoing paragraphs of this section have broadly summarized some aspects of the present disclosure. These and additional aspects and associated advantages will be described hereinafter. The disclosed aspects may be used as a basis for modifying or designing other aspects for carrying out the same or similar purposes of the present disclosure. Such equivalent aspects do not depart from the scope of the appended claims. Characteristics of the aspects disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying drawings.
The appended drawings illustrate some aspects of the present disclosure, but are not limiting of the scope of the present disclosure because the description may enable other aspects. Each of the drawings is provided for purposes of illustration and description, and not as a definition of the limits of the claims. The same or similar reference numbers in different drawings may identify the same or similar elements.
Fig. 1 is a diagram illustrating an example of a wireless communication network in accordance with the present disclosure.
Fig. 2 is a diagram illustrating an example network node in communication with an example UE in a wireless network in accordance with the present disclosure.
Fig. 3 is a diagram illustrating an example disaggregated base station architecture in accordance with the present disclosure.
Figs. 4A and 4B are diagrams illustrating examples of carrier aggregation, in accordance with the present disclosure.
Figs. 5A and 5B are diagrams illustrating an example associated with DCI format 2_3 with a CRC scrambled by different TPC-SRS-RNTIs, in accordance with the present disclosure.
Fig. 6 is a diagram illustrating an example associated with DCI format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states, in accordance with the present disclosure.
Fig. 7 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
Fig. 8 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
Fig. 9 is a diagram illustrating an example process performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure.
Fig. 10 is a diagram illustrating an example process performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure.
Fig. 11 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
Fig. 12 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
Various aspects of the present disclosure are described hereinafter with reference to the accompanying drawings. However, aspects of the present disclosure may be embodied in many different forms and is not to be construed as limited to any specific aspect illustrated by or described with reference to an accompanying drawing or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art may appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using various combinations or quantities of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover an apparatus having, or a method that is practiced using, other structures and/or functionalities in addition to or other than the structures and/or functionalities with which various aspects of the disclosure set forth herein may be practiced. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
Several aspects of telecommunication systems will now be presented with reference to various methods, operations, apparatuses, and techniques. These methods, operations, apparatuses, and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
Downlink control information (DCI) format 2_3 is a group common DCI with a cyclic redundancy check (CRC) scrambled with a transmit power control (TPC) sounding reference signal (SRS) radio network temporary identifier (RNTI) . The DCI format 2_3 may contain multiple blocks. A starting position of a block may be configured for each user equipment (UE) . The payload and/or fields of a block may
depend on whether an SRS request field is included in the block and/or a type of the block. The SRS request field may comprise two bits, and whether the SRS request field is included in a block may be configured by a radio resource control (RRC) parameter (e.g., fieldTypeFormat2-3) .
The type of a block may be a TypeA block or a TypeB block and may be configured by an RRC parameter (e.g., srs-TPC-physical downlink control channel (PDCCH) -Group) . A TypeA block may include an SRS request field and a quantity (N) of TPC command fields. The SRS request field may comprise two bits. A UE does not expect the SRS request field to be absent for a TypeA block. The N TPC command fields may comprise 2*N bits. Each TPC command may apply to a respective uplink component carrier provided by an RRC parameter (e.g., cc-IndexInOneCC-Set) . The RRC parameter may correspond to the set of component carriers indicated by the SRS request field.
The TypeB block may include an SRS request field and a TPC command field. The SRS request field may comprise zero bits when the SRS request field is not included in the TypeB block and may include two bits when the SRS request field is included in the TypeB block. The TPC command field may comprise two bits and may apply to a corresponding uplink component carrier.
In some cases, a UE may be configured with two SRS closed-loop power control adjustment states (e.g., a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state) . The DCI format 2_3 may have a CRC scrambled by a first TPC-SRS-RNTI to indicate that the TPC command is for the first SRS closed-loop power control adjustment state and the CRC may be scrambled with a second TPC-SRS-RNTI to indicate that the TPC command is for the second SRS closed-loop power control adjustment state.
However, for carrier aggregation with mixed component carrier modes (e.g., one or more component carriers are a Mode-1 component carrier configured with two separate SRS closed-loop power control adjustment states, and one or more component carriers are a Mode-2 component carrier configured with a single SRS closed-loop power control adjustment state) , utilizing the DCI format 2_3 with a CRC scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI to indicate that the TPC command is for the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state, respectively, may cause signaling waste with respect to the Mode-2 component carriers.
Various aspects relate generally to utilizing a DCI format 2_3 with a CRC scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI to indicate that a TPC command is for an SRS closed-loop power control adjustment state of a Mode-2 component carrier. Some aspects more specifically relate to applying a TPC command in a DCI format 2_3 to a component carrier, regardless of whether a CRC is scrambled with a first TPC-SRS-RNTI or a second TPC-SRS-RNTI, when the component carrier is configured with a single SRS closed-loop power control adjustment state.
Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, by applying a TPC command in a DCI format 2_3 to a component carrier regardless of whether a CRC is scrambled with a first TPC-SRS-RNTI or a second TPC-SRS-RNTI when the component carrier is configured with a single SRS closed-loop power control adjustment state, the described techniques can be used to improve the efficiency of the signaling required to indicate that the TPC command is to be applied to the single SRS closed-loop power control adjustment state configured for the component carrier.
Multiple-access radio access technologies (RATs) have been adopted in various telecommunication standards to provide common protocols that enable wireless communication devices to communicate on a municipal, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . 5G NR supports various technologies and use cases including enhanced mobile broadband (eMBB) , ultra-reliable low-latency communication (URLLC) , massive machine-type communication (mMTC) , millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV) .
As the demand for broadband access increases and as technologies supported by wireless communication networks evolve, further technological improvements may be adopted in or implemented for 5G NR or future RATs, such as 6G, to further advance the evolution of wireless communication for a wide variety of existing and new use cases and applications. Such technological improvements may be associated with new frequency band expansion, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, disaggregated network architectures and network topology expansion, device
aggregation, advanced duplex communication, sidelink and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced capability (RedCap) UE functionality, industrial connectivity, multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, and/or artificial intelligence or machine learning (AI/ML) , among other examples. These technological improvements may support use cases such as wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestrial and/or aerial platforms, among other examples. The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies and/or support one or more of the foregoing use cases.
Fig. 1 is a diagram illustrating an example of a wireless communication network 100 in accordance with the present disclosure. The wireless communication network 100 may be or may include elements of a 5G (or NR) network or a 6G network, among other examples. The wireless communication network 100 may include multiple network nodes 110, shown as a network node (NN) 110a, a network node 110b, a network node 110c, and a network node 110d. The network nodes 110 may support communications with multiple UEs 120, shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e.
The network nodes 110 and the UEs 120 of the wireless communication network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, carriers, and/or channels. For example, devices of the wireless communication network 100 may communicate using one or more operating bands. In some aspects, multiple wireless networks 100 may be deployed in a given geographic area. Each wireless communication network 100 may support a particular RAT (which may also be referred to as an air interface) and may operate on one or more carrier frequencies in one or more frequency ranges. Examples of RATs include a 4G RAT, a 5G/NR RAT, and/or a 6G RAT, among other examples. In some examples, when multiple RATs are deployed in a given geographic area, each RAT in the geographic area may operate on different frequencies to avoid interference with one another.
Various operating bands have been defined as frequency range designations FR1 (410 MHz through 7.125 GHz) , FR2 (24.25 GHz through 52.6 GHz) , FR3 (7.125 GHz through 24.25 GHz) , FR4a or FR4-1 (52.6 GHz through 71 GHz) , FR4 (52.6 GHz through 114.25 GHz) , and FR5 (114.25 GHz through 300 GHz) . Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in some documents and articles. Similarly, FR2 is often referred to (interchangeably) as a “millimeter wave” band in some documents and articles, despite being different than the extremely high frequency (EHF) band (30 GHz through 300 GHz) , which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. The frequencies between FR1 and FR2 are often referred to as mid-band frequencies, which include FR3. Frequency bands falling within FR3 may inherit FR1 characteristics or FR2 characteristics, and thus may effectively extend features of FR1 or FR2 into mid-band frequencies. Thus, “sub-6 GHz, ” if used herein, may broadly refer to frequencies that are less than 6 GHz, that are within FR1, and/or that are included in mid-band frequencies. Similarly, the term “millimeter wave, ” if used herein, may broadly refer to frequencies that are included in mid-band frequencies, that are within FR2, FR4, FR4-a or FR4-1, or FR5, and/or that are within the EHF band. Higher frequency bands may extend 5G NR operation, 6G operation, and/or other RATs beyond 52.6 GHz. For example, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some examples, the wireless communication network 100 may implement dynamic spectrum sharing (DSS) , in which multiple RATs (for example, 4G/LTE and 5G/NR) are implemented with dynamic bandwidth allocation (for example, based on user demand) in a single frequency band. It is contemplated that the frequencies included in these operating bands (for example, FR1, FR2, FR3, FR4, FR4-a, FR4-1, and/or FR5) may be modified, and techniques described herein may be applicable to those modified frequency ranges.
A network node 110 may include one or more devices, components, or systems that enable communication between a UE 120 and one or more devices, components, or systems of the wireless communication network 100. A network node 110 may be, may include, or may also be referred to as an NR network node, a 5G network node, a 6G network node, a Node B, an eNB, a gNB, an access point (AP) , a transmission reception point (TRP) , a mobility element, a core, a network entity, a network element, a network equipment, and/or another type of device, component, or system included in a radio access network (RAN) .
A network node 110 may be implemented as a single physical node (for example, a single physical structure) or may be implemented as two or more physical nodes (for example, two or more distinct physical structures) . For example, a network node 110 may be a device or system that implements part of a radio protocol stack, a device or system that implements a full radio protocol stack (such as a full gNB protocol stack) , or a collection of devices or systems that collectively implement the full radio protocol stack. For example, and as shown, a network node 110 may be an aggregated network node (having an aggregated architecture) , meaning that the network node 110 may implement a full radio protocol stack that is physically and logically integrated within a single node (for example, a single physical structure) in the wireless communication network 100. For example, an aggregated network node 110 may consist of a single standalone base station or a single TRP that uses a full radio protocol stack to enable or facilitate communication between a UE 120 and a core network of the wireless communication network 100.
Alternatively, and as also shown, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station) , meaning that the network node 110 may implement a radio protocol stack that is physically distributed and/or logically distributed among two or more nodes in the same geographic location or in different geographic locations. For example, a disaggregated network node may have a disaggregated architecture. In some deployments, disaggregated network nodes 110 may be used in an integrated access and backhaul (IAB) network, in an open radio access network (O-RAN) (such as a network configuration in compliance with the O-RAN Alliance) , or in a virtualized radio access network (vRAN) , also known as a cloud radio access network (C-RAN) , to facilitate scaling by separating base station functionality into multiple units that can be individually deployed.
The network nodes 110 of the wireless communication network 100 may include one or more central units (CUs) , one or more distributed units (DUs) , and/or one or more radio units (RUs) . A CU may host one or more higher layer control functions, such as radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, and/or service data adaptation protocol (SDAP) functions, among other examples. A DU may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and/or one or more higher physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP. In some examples, a DU also may host one or more lower PHY layer functions,
such as a fast Fourier transform (FFT) , an inverse FFT (iFFT) , beamforming, physical random access channel (PRACH) extraction and filtering, and/or scheduling of resources for one or more UEs 120, among other examples. An RU may host RF processing functions or lower PHY layer functions, such as an FFT, an iFFT, beamforming, or PRACH extraction and filtering, among other examples, according to a functional split, such as a lower layer functional split. In such an architecture, each RU can be operated to handle over the air (OTA) communication with one or more UEs 120.
In some aspects, a single network node 110 may include a combination of one or more CUs, one or more DUs, and/or one or more RUs. Additionally or alternatively, a network node 110 may include one or more Near-Real Time (Near-RT) RAN Intelligent Controllers (RICs) and/or one or more Non-Real Time (Non-RT) RICs. In some examples, a CU, a DU, and/or an RU may be implemented as a virtual unit, such as a virtual central unit (VCU) , a virtual distributed unit (VDU) , or a virtual radio unit (VRU) , among other examples. A virtual unit may be implemented as a virtual network function, such as associated with a cloud deployment.
Some network nodes 110 (for example, a base station, an RU, or a TRP) may provide communication coverage for a particular geographic area. In the 3GPP, the term “cell” can refer to a coverage area of a network node 110 or to a network node 110 itself, depending on the context in which the term is used. A network node 110 may support one or multiple (for example, three) cells. In some examples, a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by UEs 120 having association with the femto cell (for example, UEs 120 in a closed subscriber group (CSG) ) . A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or an in-home network node. In some examples, a cell may not necessarily be stationary. For example, the geographic area of the cell may move
according to the location of an associated mobile network node 110 (for example, a train, a satellite base station, an unmanned aerial vehicle, or an NTN network node) .
The wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, aggregated network nodes, and/or disaggregated network nodes, among other examples. In the example shown in Fig. 1, the network node 110a may be a macro network node for a macro cell 130a, the network node 110b may be a pico network node for a pico cell 130b, and the network node 110c may be a femto network node for a femto cell 130c. Various different types of network nodes 110 may generally transmit at different power levels, serve different coverage areas, and/or have different impacts on interference in the wireless communication network 100 than other types of network nodes 110. For example, macro network nodes may have a high transmit power level (for example, 5 to 40 watts) , whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (for example, 0.1 to 2 watts) .
In some examples, a network node 110 may be, may include, or may operate as an RU, a TRP, or a base station that communicates with one or more UEs 120 via a radio access link (which may be referred to as a “Uu” link) . The radio access link may include a downlink and an uplink. “Downlink” (or “DL” ) refers to a communication direction from a network node 110 to a UE 120, and “uplink” (or “UL” ) refers to a communication direction from a UE 120 to a network node 110. Downlink channels may include one or more control channels and one or more data channels. A downlink control channel may be used to transmit DCI (for example, scheduling information, reference signals, and/or configuration information) from a network node 110 to a UE 120. A downlink data channel may be used to transmit downlink data (for example, user data associated with a UE 120) from a network node 110 to a UE 120. Downlink control channels may include one or more physical downlink control channels (PDCCHs) , and downlink data channels may include one or more physical downlink shared channels (PDSCHs) . Uplink channels may similarly include one or more control channels and one or more data channels. An uplink control channel may be used to transmit uplink control information (UCI) (for example, reference signals and/or feedback corresponding to one or more downlink transmissions) from a UE 120 to a network node 110. An uplink data channel may be used to transmit uplink data (for example, user data associated with a UE 120) from a UE 120 to a network node 110.
Uplink control channels may include one or more physical uplink control channels (PUCCHs) , and uplink data channels may include one or more physical uplink shared channels (PUSCHs) . The downlink and the uplink may each include a set of resources on which the network node 110 and the UE 120 may communicate.
Downlink and uplink resources may include time domain resources (frames, subframes, slots, and/or symbols) , frequency domain resources (frequency bands, component carriers, subcarriers, resource blocks, and/or resource elements) , and/or spatial domain resources (particular transmit directions and/or beam parameters) . Frequency domain resources of some bands may be subdivided into bandwidth parts (BWPs) . A BWP may be a continuous block of frequency domain resources (for example, a continuous block of resource blocks) that are allocated for one or more UEs 120. A UE 120 may be configured with both an uplink BWP and a downlink BWP (where the uplink BWP and the downlink BWP may be the same BWP or different BWPs) . A BWP may be dynamically configured (for example, by a network node 110 transmitting a DCI configuration to the one or more UEs 120) and/or reconfigured, which means that a BWP can be adjusted in real-time (or near-real-time) based on changing network conditions in the wireless communication network 100 and/or based on the specific requirements of the one or more UEs 120. This enables more efficient use of the available frequency domain resources in the wireless communication network 100 because fewer frequency domain resources may be allocated to a BWP for a UE 120 (which may reduce the quantity of frequency domain resources that a UE 120 is required to monitor) , leaving more frequency domain resources to be spread across multiple UEs 120. Thus, BWPs may also assist in the implementation of lower-capability UEs 120 by facilitating the configuration of smaller bandwidths for communication by such UEs 120.
As described above, in some aspects, the wireless communication network 100 may be, may include, or may be included in, an IAB network. In an IAB network, at least one network node 110 is an anchor network node that communicates with a core network. An anchor network node 110 may also be referred to as an IAB donor (or “IAB-donor” ) . The anchor network node 110 may connect to the core network via a wired backhaul link. For example, an Ng interface of the anchor network node 110 may terminate at the core network. Additionally or alternatively, an anchor network node 110 may connect to one or more devices of the core network that provide a core access and mobility management function (AMF) . An IAB network also generally includes
multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply as IAB nodes (or “IAB-nodes” ) . Each non-anchor network node 110 may communicate directly with the anchor network node 110 via a wireless backhaul link to access the core network, or may communicate indirectly with the anchor network node 110 via one or more other non-anchor network nodes 110 and associated wireless backhaul links that form a backhaul path to the core network. Some anchor network node 110 or other non-anchor network node 110 may also communicate directly with one or more UEs 120 via wireless access links that carry access traffic. In some examples, network resources for wireless communication (such as time resources, frequency resources, and/or spatial resources) may be shared between access links and backhaul links.
In some examples, any network node 110 that relays communications may be referred to as a relay network node, a relay station, or simply as a relay. A relay may receive a transmission of a communication from an upstream station (for example, another network node 110 or a UE 120) and transmit the communication to a downstream station (for example, a UE 120 or another network node 110) . In this case, the wireless communication network 100 may include or be referred to as a “multi-hop network. ” In the example shown in Fig. 1, the network node 110d (for example, a relay network node) may communicate with the network node 110a (for example, a macro network node) and the UE 120d in order to facilitate communication between the network node 110a and the UE 120d. Additionally or alternatively, a UE 120 may be or may operate as a relay station that can relay transmissions to or from other UEs 120. A UE 120 that relays communications may be referred to as a UE relay or a relay UE, among other examples.
The UEs 120 may be physically dispersed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. A UE 120 may be, may include, or may be included in an access terminal, another terminal, a mobile station, or a subscriber unit. A UE 120 may be, include, or be coupled with a cellular phone (for example, a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (for example, a smart watch, smart clothing, smart glasses, a smart wristband, and/or smart jewelry, such as a smart ring or a smart bracelet) , an
entertainment device (for example, a music device, a video device, and/or a satellite radio) , an XR device, a vehicular component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device) , a UE function of a network node, and/or any other suitable device or function that may communicate via a wireless medium.
A UE 120 and/or a network node 110 may include one or more chips, system-on-chips (SoCs) , chipsets, packages, or devices that individually or collectively constitute or comprise a processing system. The processing system includes processor (or “processing” ) circuitry in the form of one or multiple processors, microprocessors, processing units (such as central processing units (CPUs) , graphics processing units (GPUs) , neural processing units (NPUs) and/or digital signal processors (DSPs) ) , processing blocks, application-specific integrated circuits (ASIC) , programmable logic devices (PLDs) (such as field programmable gate arrays (FPGAs) ) , or other discrete gate or transistor logic or circuitry (all of which may be generally referred to herein individually as “processors” or collectively as “the processor” or “the processor circuitry” ) . One or more of the processors may be individually or collectively configurable or configured to perform various functions or operations described herein. A group of processors collectively configurable or configured to perform a set of functions may include a first processor configurable or configured to perform a first function of the set and a second processor configurable or configured to perform a second function of the set, or may include the group of processors all being configured or configurable to perform the set of functions.
The processing system may further include memory circuitry in the form of one or more memory devices, memory blocks, memory elements or other discrete gate or transistor logic or circuitry, each of which may include tangible storage media such as random-access memory (RAM) or read-only memory (ROM) , or combinations thereof (all of which may be generally referred to herein individually as “memories” or collectively as “the memory” or “the memory circuitry” ) . One or more of the memories may be coupled (for example, operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) with one or more of the processors and may individually or collectively store processor-executable code (such as software) that, when executed by one or more of the processors, may configure one or more of the processors to perform various functions or operations described herein. Additionally or
alternatively, in some examples, one or more of the processors may be preconfigured to perform various functions or operations described herein without requiring configuration by software. The processing system may further include or be coupled with one or more modems (such as a Wi-Fi (for example, IEEE compliant) modem or a cellular (for example, 3GPP 4G LTE, 5G, or 6G compliant) modem) . In some implementations, one or more processors of the processing system include or implement one or more of the modems. The processing system may further include or be coupled with multiple radios (collectively “the radio” ) , multiple RF chains, or multiple transceivers, each of which may in turn be coupled with one or more of multiple antennas. In some implementations, one or more processors of the processing system include or implement one or more of the radios, RF chains or transceivers. The UE 120 may include or may be included in a housing that houses components associated with the UE 120 including the processing system.
Some UEs 120 may be considered machine-type communication (MTC) UEs, evolved or enhanced machine-type communication (eMTC) , UEs, further enhanced eMTC (feMTC) UEs, or enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be simply referred to as “MTC UEs” ) . An MTC UE may be, may include, or may be included in or coupled with a robot, an uncrewed aerial vehicle, a remote device, a sensor, a meter, a monitor, and/or a location tag. Some UEs 120 may be considered IoT devices and/or may be implemented as NB-IoT (narrowband IoT) devices. An IoT UE or NB-IoT device may be, may include, or may be included in or coupled with an industrial machine, an appliance, a refrigerator, a doorbell camera device, a home automation device, and/or a light fixture, among other examples. Some UEs 120 may be considered Customer Premises Equipment, which may include telecommunications devices that are installed at a customer location (such as a home or office) to enable access to a service provider's network (such as included in or in communication with the wireless communication network 100) .
Some UEs 120 may be classified according to different categories in association with different complexities and/or different capabilities. UEs 120 in a first category may facilitate massive IoT in the wireless communication network 100, and may offer low complexity and/or cost relative to UEs 120 in a second category. UEs 120 in a second category may include mission-critical IoT devices, legacy UEs, baseline UEs, high-tier UEs, advanced UEs, full-capability UEs, and/or premium UEs that are capable of URLLC, enhanced mobile broadband (eMBB) , and/or precise positioning in
the wireless communication network 100, among other examples. A third category of UEs 120 may have mid-tier complexity and/or capability (for example, a capability between UEs 120 of the first category and UEs 120 of the second capability) . A UE 120 of the third category may be referred to as a reduced capacity UE ( “RedCap UE” ) , a mid-tier UE, an NR-Light UE, and/or an NR-Lite UE, among other examples. RedCap UEs may bridge a gap between the capability and complexity of NB-IoT devices and/or eMTC UEs, and mission-critical IoT devices and/or premium UEs. RedCap UEs may include, for example, wearable devices, IoT devices, industrial sensors, and/or cameras that are associated with a limited bandwidth, power capacity, and/or transmission range, among other examples. RedCap UEs may support healthcare environments, building automation, electrical distribution, process automation, transport and logistics, and/or smart city deployments, among other examples.
In some examples, two or more UEs 120 (for example, shown as UE 120a and UE 120e) may communicate directly with one another using sidelink communications (for example, without communicating by way of a network node 110 as an intermediary) . As an example, the UE 120a may directly transmit data, control information, or other signaling as a sidelink communication to the UE 120e. This is in contrast to, for example, the UE 120a first transmitting data in an UL communication to a network node 110, which then transmits the data to the UE 120e in a DL communication. In various examples, the UEs 120 may transmit and receive sidelink communications using peer-to-peer (P2P) communication protocols, device-to-device (D2D) communication protocols, vehicle-to-everything (V2X) communication protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, and/or vehicle-to-pedestrian (V2P) protocols) , and/or mesh network communication protocols. In some deployments and configurations, a network node 110 may schedule and/or allocate resources for sidelink communications between UEs 120 in the wireless communication network 100. In some other deployments and configurations, a UE 120 (instead of a network node 110) may perform, or collaborate or negotiate with one or more other UEs to perform, scheduling operations, resource selection operations, and/or other operations for sidelink communications.
In various examples, some of the network nodes 110 and the UEs 120 of the wireless communication network 100 may be configured for full-duplex operation in addition to half-duplex operation. A network node 110 or a UE 120 operating in a half-
duplex mode may perform only one of transmission or reception during particular time resources, such as during particular slots, symbols, or other time periods. Half-duplex operation may involve time-division duplexing (TDD) , in which DL transmissions of the network node 110 and UL transmissions of the UE 120 do not occur in the same time resources (that is, the transmissions do not overlap in time) . In contrast, a network node 110 or a UE 120 operating in a full-duplex mode can transmit and receive communications concurrently (for example, in the same time resources) . By operating in a full-duplex mode, network nodes 110 and/or UEs 120 may generally increase the capacity of the network and the radio access link. In some examples, full-duplex operation may involve frequency-division duplexing (FDD) , in which DL transmissions of the network node 110 are performed in a first frequency band or on a first component carrier and transmissions of the UE 120 are performed in a second frequency band or on a second component carrier different than the first frequency band or the first component carrier, respectively. In some examples, full-duplex operation may be enabled for a UE 120 but not for a network node 110. For example, a UE 120 may simultaneously transmit an UL transmission to a first network node 110 and receive a DL transmission from a second network node 110 in the same time resources. In some other examples, full-duplex operation may be enabled for a network node 110 but not for a UE 120. For example, a network node 110 may simultaneously transmit a DL transmission to a first UE 120 and receive an UL transmission from a second UE 120 in the same time resources. In some other examples, full-duplex operation may be enabled for both a network node 110 and a UE 120.
In some examples, the UEs 120 and the network nodes 110 may perform MIMO communication. “MIMO” generally refers to transmitting or receiving multiple signals (such as multiple layers or multiple data streams) simultaneously over the same time and frequency resources. MIMO techniques generally exploit multipath propagation. MIMO may be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO may support simultaneous transmission to multiple receivers, referred to as multi-user MIMO (MU-MIMO) . Some RATs may employ advanced MIMO techniques, such as mTRP operation (including redundant transmission or reception on multiple TRPs) , reciprocity in the time domain or the frequency domain, single-frequency-network (SFN) transmission, or non-coherent joint transmission (NC-JT) .
In some aspects, the UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; receive, from the network node, downlink control information (DCI) that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier. Additionally, or alternatively, the communication manager 140 may perform one or more other operations described herein.
In some aspects, the communication manager 140 may receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; receive, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and transmit, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier. Additionally, or
alternatively, the communication manager 140 may perform one or more other operations described herein.
In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
In some aspects, the communication manager 150 may transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component
carrier. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
As indicated above, Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
Fig. 2 is a diagram illustrating an example network node 110 in communication with an example UE 120 in a wireless network in accordance with the present disclosure.
As shown in Fig. 2, the network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a through 232t, where t ≥ 1) , a set of antennas 234 (shown as 234a through 234v, where v ≥ 1) , a MIMO detector 236, a receive processor 238, a data sink 239, a controller/processor 240, a memory 242, a communication unit 244, a scheduler 246, and/or a communication manager 150, among other examples. In some configurations, one or a combination of the antenna (s) 234, the modem (s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 214, and/or the TX MIMO processor 216 may be included in a transceiver of the network node 110. The transceiver may be under control of and used by one or more processors, such as the controller/processor 240, and in some aspects in conjunction with processor-readable code stored in the memory 242, to perform aspects of the methods, processes, and/or operations described herein. In some aspects, the network node 110 may include one or more interfaces, communication components, and/or other components that facilitate communication with the UE 120 or another network node.
The terms “processor, ” “controller, ” or “controller/processor” may refer to one or more controllers and/or one or more processors. For example, reference to “a/the processor, ” “a/the controller/processor, ” or the like (in the singular) should be understood to refer to any one or more of the processors described in connection with Fig. 2, such as a single processor or a combination of multiple different processors. Reference to “one or more processors” should be understood to refer to any one or more of the processors described in connection with Fig. 2. For example, one or more processors of the network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and/or controller/processor 240. Similarly, one or more processors of the UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and/or controller/processor 280.
In some aspects, a single processor may perform all of the operations described as being performed by the one or more processors. In some aspects, a first set of (one or more) processors of the one or more processors may perform a first operation described as being performed by the one or more processors, and a second set of (one or more) processors of the one or more processors may perform a second operation described as being performed by the one or more processors. The first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. Reference to “one or more memories” should be understood to refer to any one or more memories of a corresponding device, such as the memory described in connection with Fig. 2. For example, operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or different subsets of the one or more memories.
For downlink communication from the network node 110 to the UE 120, the transmit processor 214 may receive data ( “downlink data” ) intended for the UE 120 (or a set of UEs that includes the UE 120) from the data source 212 (such as a data pipeline or a data queue) . In some examples, the transmit processor 214 may select one or more MCSs for the UE 120 in accordance with one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process the data (for example, including encoding the data) for transmission to the UE 120 on a downlink in accordance with the MCS (s) selected for the UE 120 to generate data symbols. The transmit processor 214 may process system information (for example, semi-static resource partitioning information (SRPI) ) and/or control information (for example, CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and/or control symbols. The transmit processor 214 may generate reference symbols for reference signals (for example, a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , or a channel state information (CSI) reference signal (CSI-RS) ) and/or synchronization signals (for example, a primary synchronization signal (PSS) or a secondary synchronization signals (SSS) ) .
The TX MIMO processor 216 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, T output symbol streams) to the set of modems 232. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 232. Each modem 232 may use the
respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for orthogonal frequency division multiplexing (OFDM) ) to obtain an output sample stream. Each modem 232 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and/or upconvert) the output sample stream to obtain a time domain downlink signal. The modems 232a through 232t may together transmit a set of downlink signals (for example, T downlink signals) via the corresponding set of antennas 234.
A downlink signal may include a DCI communication, a MAC control element (MAC-CE) communication, an RRC communication, a downlink reference signal, or another type of downlink communication. Downlink signals may be transmitted on a PDCCH, a PDSCH, and/or on another downlink channel. A downlink signal may carry one or more transport blocks (TBs) of data. A TB may be a unit of data that is transmitted over an air interface in the wireless communication network 100. A data stream (for example, from the data source 212) may be encoded into multiple TBs for transmission over the air interface. The quantity of TBs used to carry the data associated with a particular data stream may be associated with a TB size common to the multiple TBs. The TB size may be based on or otherwise associated with radio channel conditions of the air interface, the MCS used for encoding the data, the downlink resources allocated for transmitting the data, and/or another parameter. In general, the larger the TB size, the greater the amount of data that can be transmitted in a single transmission, which reduces signaling overhead. However, larger TB sizes may be more prone to transmission and/or reception errors than smaller TB sizes, but such errors may be mitigated by more robust error correction techniques.
For uplink communication from the UE 120 to the network node 110, uplink signals from the UE 120 may be received by an antenna 234, may be processed by a modem 232 (for example, a demodulator component, shown as DEMOD, of a modem 232) , may be detected by the MIMO detector 236 (for example, a receive (Rx) MIMO processor) if applicable, and/or may be further processed by the receive processor 238 to obtain decoded data and/or control information. The receive processor 238 may provide the decoded data to a data sink 239 (which may be a data pipeline, a data queue, and/or another type of data sink) and provide the decoded control information to a processor, such as the controller/processor 240.
The network node 110 may use the scheduler 246 to schedule one or more UEs 120 for downlink or uplink communications. In some aspects, the scheduler 246
may use DCI to dynamically schedule DL transmissions to the UE 120 and/or UL transmissions from the UE 120. In some examples, the scheduler 246 may allocate recurring time domain resources and/or frequency domain resources that the UE 120 may use to transmit and/or receive communications using an RRC configuration (for example, a semi-static configuration) , for example, to perform semi-persistent scheduling (SPS) or to configure a configured grant (CG) for the UE 120.
One or more of the transmit processor 214, the TX MIMO processor 216, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, and/or the controller/processor 240 may be included in an RF chain of the network node 110. An RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs) , and/or other devices that convert between an analog signal (such as for transmission or reception via an air interface) and a digital signal (such as for processing by one or more processors of the network node 110) . In some aspects, the RF chain may be or may be included in a transceiver of the network node 110.
In some examples, the network node 110 may use the communication unit 244 to communicate with a core network and/or with other network nodes. The communication unit 244 may support wired and/or wireless communication protocols and/or connections, such as Ethernet, optical fiber, common public radio interface (CPRI) , and/or a wired or wireless backhaul, among other examples. The network node 110 may use the communication unit 244 to transmit and/or receive data associated with the UE 120 or to perform network control signaling, among other examples. The communication unit 244 may include a transceiver and/or an interface, such as a network interface.
The UE 120 may include a set of antennas 252 (shown as antennas 252a through 252r, where r ≥ 1) , a set of modems 254 (shown as modems 254a through 254u, where u ≥ 1) , a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller/processor 280, a memory 282, and/or a communication manager 140, among other examples. One or more of the components of the UE 120 may be included in a housing 284. In some aspects, one or a combination of the antenna (s) 252, the modem (s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266 may be included in a transceiver that is included in the UE 120. The transceiver may be under control of and used by one or more processors, such as the controller/processor 280, and in some aspects in conjunction with processor-readable
code stored in the memory 282, to perform aspects of the methods, processes, or operations described herein. In some aspects, the UE 120 may include another interface, another communication component, and/or another component that facilitates communication with the network node 110 and/or another UE 120.
For downlink communication from the network node 110 to the UE 120, the set of antennas 252 may receive the downlink communications or signals from the network node 110 and may provide a set of received downlink signals (for example, R received signals) to the set of modems 254. For example, each received signal may be provided to a respective demodulator component (shown as DEMOD) of a modem 254. Each modem 254 may use the respective demodulator component to condition (for example, filter, amplify, downconvert, and/or digitize) a received signal to obtain input samples. Each modem 254 may use the respective demodulator component to further demodulate or process the input samples (for example, for OFDM) to obtain received symbols. The MIMO detector 256 may obtain received symbols from the set of modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. The receive processor 258 may process (for example, decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260 (which may include a data pipeline, a data queue, and/or an application executed on the UE 120) , and may provide decoded control information and system information to the controller/processor 280.
For uplink communication from the UE 120 to the network node 110, the transmit processor 264 may receive and process data ( “uplink data” ) from a data source 262 (such as a data pipeline, a data queue, and/or an application executed on the UE 120) and control information from the controller/processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and/or other types of control information. In some aspects, the receive processor 258 and/or the controller/processor 280 may determine, for a received signal (such as received from the network node 110 or another UE) , one or more parameters relating to transmission of the uplink communication. The one or more parameters may include a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, a CQI parameter, or a transmit power control (TPC) parameter, among other examples. The control information may include an indication of the RSRP parameter, the RSSI parameter, the RSRQ parameter, the CQI parameter, the TPC parameter, and/or another
parameter. The control information may facilitate parameter selection and/or scheduling for the UE 120 by the network node 110.
The transmit processor 264 may generate reference symbols for one or more reference signals, such as an uplink DMRS, an uplink sounding reference signal (SRS) , and/or another type of reference signal. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, and further processed by the set of modems 254 (for example, for DFT-s-OFDM or CP-OFDM) . The TX MIMO processor 266 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, U output symbol streams) to the set of modems 254. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 254. Each modem 254 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for OFDM) to obtain an output sample stream. Each modem 254 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and/or upconvert) the output sample stream to obtain an uplink signal.
The modems 254a through 254u may transmit a set of uplink signals (for example, R uplink signals or U uplink symbols) via the corresponding set of antennas 252. An uplink signal may include a UCI communication, a MAC-CE communication, an RRC communication, or another type of uplink communication. Uplink signals may be transmitted on a PUSCH, a PUCCH, and/or another type of uplink channel. An uplink signal may carry one or more TBs of data. Sidelink data and control transmissions (that is, transmissions directly between two or more UEs 120) may generally use similar techniques as were described for uplink data and control transmission, and may use sidelink-specific channels such as a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and/or a physical sidelink feedback channel (PSFCH) .
One or more antennas of the set of antennas 252 or the set of antennas 234 may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non-coplanar antenna
elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of Fig. 2. As used herein, “antenna” can refer to one or more antennas, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays. “Antenna panel” can refer to a group of antennas (such as antenna elements) arranged in an array or panel, which may facilitate beamforming by manipulating parameters of the group of antennas. “Antenna module” may refer to circuitry including one or more antennas, which may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.
In some examples, each of the antenna elements of an antenna 234 or an antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, and/or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. A spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere constructively and destructively along various directions (such as to form a desired beam) . For example, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, a half wavelength, or another fraction of a wavelength of spacing between neighboring antenna elements to allow for the desired constructive and destructive interference patterns of signals transmitted by the separate antenna elements within that expected range.
The amplitudes and/or phases of signals transmitted via antenna elements and/or sub-elements may be modulated and shifted relative to each other (such as by manipulating phase shift, phase offset, and/or amplitude) to generate one or more beams, which is referred to as beamforming. The term “beam” may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. “Beam” may also generally refer to a direction associated with such a directional signal transmission, a set of directional resources associated with the signal transmission (for example, an angle of arrival, a horizontal direction, and/or a vertical direction) , and/or a set of parameters that indicate one or more aspects of a directional
signal, a direction associated with the signal, and/or a set of directional resources associated with the signal. In some implementations, antenna elements may be individually selected or deselected for directional transmission of a signal (or signals) by controlling amplitudes of one or more corresponding amplifiers and/or phases of the signal (s) to form one or more beams. The shape of a beam (such as the amplitude, width, and/or presence of side lobes) and/or the direction of a beam (such as an angle of the beam relative to a surface of an antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and/or amplitudes of the multiple signals relative to each other.
Different UEs 120 or network nodes 110 may include different numbers of antenna elements. For example, a UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or a different number of antenna elements. As another example, a network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or a different number of antenna elements. Generally, a larger number of antenna elements may provide increased control over parameters for beam generation relative to a smaller number of antenna elements, whereas a smaller number of antenna elements may be less complex to implement and may use less power than a larger number of antenna elements. Multiple antenna elements may support multiple-layer transmission, in which a first layer of a communication (which may include a first data stream) and a second layer of a communication (which may include a second data stream) are transmitted using the same time and frequency resources with spatial multiplexing.
While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of the controller/processor 280.
Fig. 3 is a diagram illustrating an example disaggregated base station architecture 300 in accordance with the present disclosure. One or more components of the example disaggregated base station architecture 300 may be, may include, or may be included in one or more network nodes (such one or more network nodes 110) . The disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link, or that can
communicate indirectly with the core network 320 via one or more disaggregated control units, such as a Non-RT RIC 350 associated with a Service Management and Orchestration (SMO) Framework 360 and/or a Near-RT RIC 370 (for example, via an E2 link) . The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via F1 interfaces. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective RF access links. In some deployments, a UE 120 may be simultaneously served by multiple RUs 340.
Each of the components of the disaggregated base station architecture 300, including the CUs 310, the DUs 330, the RUs 340, the Near-RT RICs 370, the Non-RT RICs 350, and the SMO Framework 360, may include one or more interfaces or may be coupled with one or more interfaces for receiving or transmitting signals, such as data or information, via a wired or wireless transmission medium.
In some aspects, the CU 310 may be logically split into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units. A CU-UP unit may communicate bidirectionally with a CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 310 may be deployed to communicate with one or more DUs 330, as necessary, for network control and signaling. Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340. For example, a DU 330 may host various layers, such as an RLC layer, a MAC layer, or one or more PHY layers, such as one or more high PHY layers or one or more low PHY layers. Each layer (which also may be referred to as a module) may be implemented with an interface for communicating signals with other layers (and modules) hosted by the DU 330, or for communicating signals with the control functions hosted by the CU 310. Each RU 340 may implement lower layer functionality. In some aspects, real-time and non-real-time aspects of control and user plane communication with the RU (s) 340 may be controlled by the corresponding DU 330.
The SMO Framework 360 may support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 360 may support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface, such as an O1 interface. For virtualized network elements, the SMO Framework 360 may interact with a cloud computing platform (such as an
open cloud (O-Cloud) platform 390) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface, such as an O2 interface. A virtualized network element may include, but is not limited to, a CU 310, a DU 330, an RU 340, a non-RT RIC 350, and/or a Near-RT RIC 370. In some aspects, the SMO Framework 360 may communicate with a hardware aspect of a 4G RAN, a 5G NR RAN, and/or a 6G RAN, such as an open eNB (O-eNB) 380, via an O1 interface. Additionally or alternatively, the SMO Framework 360 may communicate directly with each of one or more RUs 340 via a respective O1 interface. In some deployments, this configuration can enable each DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
The Non-RT RIC 350 may include or may implement a logical function that enables non-real-time control and optimization of RAN elements and resources, AI/ML workflows including model training and updates, and/or policy-based guidance of applications and/or features in the Near-RT RIC 370. The Non-RT RIC 350 may be coupled to or may communicate with (such as via an A1 interface) the Near-RT RIC 370. The Near-RT RIC 370 may include or may implement a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions via an interface (such as via an E2 interface) connecting one or more CUs 310, one or more DUs 330, and/or an O-eNB with the Near-RT RIC 370.
In some aspects, to generate AI/ML models to be deployed in the Near-RT RIC 370, the Non-RT RIC 350 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 370 and may be received at the SMO Framework 360 or the Non-RT RIC 350 from non-network data sources or from network functions. In some examples, the Non-RT RIC 350 or the Near-RT RIC 370 may tune RAN behavior or performance. For example, the Non-RT RIC 350 may monitor long-term trends and patterns for performance and may employ AI/ML models to perform corrective actions via the SMO Framework 360 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies) .
As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
The network node 110, the controller/processor 240 of the network node 110, the UE 120, the controller/processor 280 of the UE 120, the CU 310, the DU 330, the
RU 340, or any other component (s) of Figs. 1, 2, or 3 may implement one or more techniques or perform one or more operations associated with DCI format 2_3 scrambled by (e.g., having a CRC scrambled by) different TPC-SRS-RNTIs, as described in more detail elsewhere herein. For example, the controller/processor 240 of the network node 110, the controller/processor 280 of the UE 120, any other component (s) of Fig. 2, the CU 310, the DU 330, or the RU 340 may perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, process 900 of Fig. 9, process 1000 of Fig. 10, or other processes as described herein (alone or in conjunction with one or more other processors) . The memory 242 may store data and program codes for the network node 110, the network node 110, the CU 310, the DU 330, or the RU 340. The memory 282 may store data and program codes for the UE 120. In some examples, the memory 242 or the memory 282 may include a non-transitory computer-readable medium storing a set of instructions (for example, code or program code) for wireless communication. The memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . The memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . For example, the set of instructions, when executed (for example, directly, or after compiling, converting, or interpreting) by one or more processors of the network node 110, the UE 120, the CU 310, the DU 330, or the RU 340, may cause the one or more processors to perform process 700 of Fig. 7, process 800 of Fig. 8, process 900 of Fig. 9, process 1000 of Fig. 10, or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.
In some aspects, a UE (e.g., the UE 120) includes means for receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; means for receiving, from the network node, downlink control information (DCI) that indicates a TPC command for the second component
carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and/or means for transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier. The means for the UE to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller/processor 280, or memory 282.
In some aspects, a UE (e.g., the UE 120) includes means for receiving, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; means for receiving, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and/or means for transmitting, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier. The means for the UE to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller/processor 280, or memory 282.
In some aspects, a network node (e.g., the network node 110) includes means for transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power
control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; means for transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and/or means for receiving, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier. The means for the network node to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
In some aspects, a network node (e.g., the network node 110) includes means for transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; means for transmitting, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and/or means for receiving, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier. The means for the network node to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
Figs. 4A and 4B are diagrams illustrating examples 400 of carrier aggregation, in accordance with the present disclosure.
Carrier aggregation is a technology that enables two or more component carriers (CCs, sometimes referred to as carriers) to be combined (e.g., into a single channel) for a single UE 120 to enhance data capacity. As shown, carriers can be combined in the same or different frequency bands. Additionally, or alternatively, contiguous or non-contiguous carriers can be combined. A network node 110 may configure carrier aggregation for a UE 120, such as in a radio resource control (RRC) message, downlink control information (DCI) , and/or another signaling message.
As shown in Fig. 4A, and by reference number 405, in some aspects, carrier aggregation may be configured in an intra-band contiguous mode where the aggregated carriers are contiguous to one another and are in the same band. As shown by reference number 410, in some aspects, carrier aggregation may be configured in an intra-band non-contiguous mode where the aggregated carriers are non-contiguous to one another and are in the same band. As shown by reference number 415, in some aspects, carrier aggregation may be configured in an inter-band non-contiguous mode where the aggregated carriers are non-contiguous to one another and are in different bands.
In carrier aggregation, a UE 120 may be configured with a primary carrier or primary cell (PCell) and one or more secondary carriers or secondary cells (SCells) . In some aspects, the primary carrier may carry control information (e.g., downlink control information and/or scheduling information) for scheduling data communications on one or more secondary carriers, which may be referred to as cross-carrier scheduling. In some aspects, a carrier (e.g., a primary carrier or a secondary carrier) may carry control information for scheduling data communications on the carrier, which may be referred to as self-carrier scheduling or carrier self-scheduling.
In some cases, carrier aggregation may be configured where the aggregated component carriers have mixed component carrier modes. For example, as shown in Fig. 4B, and by reference number 420, the aggregated component carriers may include two Mode-1 component carriers (e.g., CC0 and CC1, as shown in Fig. 4B) and two Mode-2 component carriers (e.g., CC2 and CC3, as shown in Fig. 4B) . In this case, utilizing the DCI format 2_3 with a CRC scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI to indicate that the TPC command is for the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control
adjustment state, respectively, may cause signaling waste with respect to the Mode-2 component carriers.
For example, the UE may be configured with four TypeB blocks in DCI format 2_3. Each TypeB block may correspond to one of the aggregated component carriers CC0-CC3. If the DCI format 2_3 has a CRC scrambled by a first TPC-SRS-RNTI, the TPC command in the DCI format 2_3 is applied to the first SRS closed-loop power control adjustment state (e.g., l=0) for the aggregated component carriersCC0-CC3. If the DCI format 2_3 has a CRC scrambled by a second TPC-SRS-RNTI, the TPC command in the DCI format 2_3 is applied to the second SRS closed-loop power control adjustment state (e.g., l=1) for the aggregated component carriers CC0-CC3. However, for component carrier CC2 and component carrier CC3, since only a single SRS closed-loop power control adjustment state (e.g., l=0) is configured, the TPC commands corresponding to component carrier CC2 and component carrier CC3 in the DCI format 2_3 with the CRC scrambled by the second TPC-SRS-RNTI may be unused.
As indicated above, Figs. 4A and 4B are provided as an example. Other examples may differ from what is described with regard to Figs. 4A and 4B.
Figs. 5A and 5B are diagrams illustrating an example 500 associated with DCI format 2_3 with a CRC scrambled by different TPC-SRS-RNTIs, in accordance with the present disclosure. As shown in Fig. 5A, a network node 110 and a UE 120 may communicate with one another.
In some implementations, the UE 120 may be configured with four uplink component carriers (e.g., component carriers CC0-CC3, as shown in Fig. 5) . As shown by reference number 505, component carriers CC0 and CC1 may comprise Mode-1 component carriers configured with two SRS closed-loop power control adjustment states, and component carriers CC2 and CC3 may comprise Mode-2 component carriers configured with one SRS closed-loop power control adjustment state.
As shown by reference number 505, the network node 110 may transmit, and the UE 120 may receive, configuration information. For example, the network node 110 may transmit, and the UE 120 may receive, an uplink power control configuration for a plurality of uplink component carriers.
In some implementations, the configuration information may configure carrier aggregation with a set of component carriers having mixed component carrier modes. For example, as shown in Fig. 5B, and by reference number 510, the set of component
carriers may include two Mode-1 component carriers (e.g., CC0 and CC1, as shown in Fig. 5B) that are configured with two SRS closed-loop power control adjustment states (e.g., l=0 and l=1, as shown in Fig. 5B) and two Mode-2 component carriers (e.g., CC2 and CC3, as shown in Fig. 5B) that are configured with one SRS closed-loop power control adjustment state (e.g., l=0, as shown in Fig. 5B) .
In some implementations, the configuration information may indicate that a first TPC-SRS-RNTI is associated with the first SRS closed-loop power control adjustment state and a second TPC-SRS-RNTI is associated with the second SRS closed-loop power control adjustment state. For example, the first SRS closed-loop power control adjustment state may be associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state may be associated with a second closed-loop power control adjustment state index. The configuration information may indicate that the first TPC-SRS-RNTI is associated with the first closed-loop power control adjustment state index and that the second TPC-SRS-RNTI is associated with the second closed-loop power control adjustment state index.
In some implementations, the UE 120 may determine (and/or the configuration information may indicate) that a DCI format 2_3 with a CRC scrambled by the first TPC-SRS-RNTI indicates that TPC commands indicated in the DCI format 2_3 are to be applied to the first SRS closed-loop power control adjustment state and that a DCI format 2_3 with a CRC scrambled by the second TPC-SRS-RNTI indicates that TPC commands indicated in the DCI format 2_3 are to be applied to the second SRS closed-loop power control adjustment state. For example, the UE 120 may determine (and/or the configuration information may indicate) that a DCI format 2_3 with a CRC scrambled by the first TPC-SRS-RNTI indicates that TPC commands indicated in the DCI format 2_3 are to be applied to the first SRS closed-loop power control adjustment state and that a DCI format 2_3 with a CRC scrambled by the second TPC-SRS-RNTI indicates that TPC commands indicated in the DCI format 2_3 are to be applied to the second SRS closed-loop power control adjustment state, based at least in part on the first TPC-SRS-RNTI being associated with the first closed-loop power control adjustment state index and the second TPC-SRS-RNTI being associated with the second closed-loop power control adjustment state index.
As shown in Fig. 5A, and by reference number 515, the network node 110 may transmit, and the UE 120 may receive, a DCI format 2_3 with a CRC scrambled by the
second TPC-SRS-RNTI. The DCI format 2_3 may include one or more TypeA blocks or one or more TypeB blocks. A type of block included in the DCI format 2_3 may be indicated in the configuration information.
As shown in Fig. 5B, and by reference number 520, in some implementations, the DCI format 2_3 may include a plurality of TypeB blocks (e.g., Blocks 1-N, as shown in Fig. 5B) . Each block may be associated with a respective component carrier and may indicate a TPC command for the respective component carrier. The UE 120 may determine a location of a block with the DCI format 2_3 based at least in part on a starting position. In some implementations, the starting position for a block may be indicated in the configuration information. For example, the configuration information may indicate a starting position 525 corresponding to a block that includes a TPC command associated with component carrier CC0, a starting position 530 corresponding to a block that includes a TPC command associated with component carrier CC1, a starting position 535 corresponding to a block that includes a TPC command associated with component carrier CC2, and a starting position 540 corresponding to a block that includes a TPC command associated with component carrier CC3.
As shown by reference number 545, in some implementations, the DCI format 2_3 may include a TypeA block. In some implementations, the UE 120 may be associated with a particular block (e.g., Block 1) . For example, the configuration information may indicate a same starting position of a block associated with the UE 120 for CC0 to CC3. The UE 120 may identify the block associated with the UE 120 based at least in part on the starting position indicated in the configuration information.
As shown by reference number 550, the block associated with the UE 120 (e.g., block 1, as shown in Fig. 5B) may include an SRS request field and a plurality of TPC command fields (e.g., TPC1-TPC4, as shown in Fig. 5B) . The SRS request field may indicate the set of component carriers (e.g., component carriers CC0-CC3) to which the TPC commands indicated by the plurality of TPC command fields are applied. For example, the UE 120 may receive an RRC parameter (e.g., cc-IndexInOneCC-Set) indicating a component carrier index in a corresponding set of component carriers. Up to three sets of component carriers can be indicated by the RRC parameter where one of set of component carriers is triggered by the SRS request field.
As shown in Fig. 5A, and by reference number 555, the UE 120 may apply the TPC commands indicated by the DCI format 2_3 to the corresponding component carriers CC0-CC3. In some implementations, the DCI format 2_3 may include the
plurality of TypeB blocks, and the UE 120 may apply the TPC commands indicated by the TypeB blocks to an SRS closed-loop power control adjustment state of the respective component carrier associated with each TypeB block.
In some implementations, the UE 120 may apply the TPC command indicated by the first TypeB block and the TPC command indicated by the second TypeB block to the second SRS closed-loop power control adjustment state of component carrier CC0 and component carrier CC1, respectively, based at least in part on the DCI format 2_3 having the CRC scrambled by the second TPC-SRS-RNTI.
In some implementations, the UE 120 may apply the TPC command indicated by the third TypeB block and the TPC command indicated by the fourth TypeB block to the first SRS closed-loop power control adjustment state of component carrier CC2 and component carrier CC3, respectively, based at least in part on component carrier CC2 and component carrier CC3 being configured with a single SRS closed-loop power control adjustment state. Stated differently, for component carriers configured with a single SRS closed-loop power control adjustment state, the UE 120 may apply the TPC command indicated in the DCI format 2_3 to the single SRS closed-loop power control adjustment state configured for the component carriers regardless of with which TPC-SRS-RNTI the CRC is scrambled (e.g., the TPC command may be applied to the single SRS closed-loop power control adjustment state configured for the component carriers when the DCI format 2_3 has a CRC scrambled by the first TPC-SRS-RNTI or when the DCI format 2_3 has a CRC scrambled by the second TPC-SRS-RNTI) .
In some implementations, the DCI format 2_3 may include a TypeA block associated with the UE 120, and the UE 120 may apply the TPC commands indicated by the TPC command fields to an SRS closed-loop power control adjustment state of the respective component carrier associated with each TPC command field.
In some implementations, the UE 120 may apply the TPC command indicated by the first TPC command field and the TPC command indicated by the second TPC command field to the second SRS closed-loop power control adjustment state of component carrier CC0 and component carrier CC1, respectively, based at least in part on the DCI format 2_3 having the CRC scrambled by the second TPC-SRS-RNTI.
In some implementations, the UE 120 may apply the TPC command indicated by the third TPC command field and the TPC command indicated by the fourth TPC command field to the first SRS closed-loop power control adjustment state of component carrier CC2 and component carrier CC3, respectively, based at least in part
on component carrier CC2 and component carrier CC3 being configured with a single SRS closed-loop power control adjustment state. Stated differently, for component carriers configured with a single SRS closed-loop power control adjustment state, the UE 120 may apply the TPC command indicated in the DCI format 2_3 to the single SRS closed-loop power control adjustment state configured for the component carriers regardless of with which TPC-SRS-RNTI the CRC is scrambled (e.g., the TPC command may be applied to the single SRS closed-loop power control adjustment state configured for the component carriers when the DCI format 2_3 has a CRC scrambled by the first TPC-SRS-RNTI or when the DCI format 2_3 has a CRC scrambled by the second TPC-SRS-RNTI) .
As indicated above, Figs. 5A and 5B are provided as an example. Other examples may differ from what is described with respect to Figs. 5A and 5B.
Fig. 6 is a diagram illustrating an example 600 associated with DCI format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states, in accordance with the present disclosure. As shown in Fig. 6, a network node 110 and a UE 120 may communicate with one another.
As shown by reference number 605, the network node 110 may transmit, and the UE 120 may receive, a configuration for an uplink component carrier. In some implementations, the uplink component carrier may be configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state. The configuration may indicate a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state (e.g., the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state) . For example, the first starting location may indicate a location of a first bit of a block corresponding to a closed-loop power control adjustment state (e.g., the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state) and the second starting location may indicate a location of a first bit of a block corresponding to another closed-loop power control adjustment state (e.g., the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state) .
In some implementations, the configuration information may include a first field indicating the first starting location and a second field indicating the second
starting location. For example, the configuration information may include an SRS-TPC-CommandConfig, and the first field may comprise a first startingBitOfFormat2-3 field and the second field may comprise a second startingBitOfFormat2-3 field.
In some implementations, the configuration information may include a first configuration and a second configuration. For example, the network node 110 may transmit, and the UE 120 may receive, a first configuration for the uplink component carrier. The first configuration may indicate the first starting location. For example, the first configuration may comprise a first SRS-TPC-CommandConfig that includes a startingBitOfFormat2-3 field indicating the first location.
The network node 110 may transmit, and the UE 120 may receive, a second configuration for the uplink component carrier. The second configuration may indicate the second starting location. For example, the second configuration may comprise a second SRS-TPC-CommandConfig that includes a startingBitOfFormat2-3 field indicating the second location.
In some implementations, the configuration information may configure the UE 120 with different sets of uplink component carriers for different SRS closed-loop power control adjustment states. For example, the configuration information may configure a first sets of component carriers with the first SRS closed-loop power control adjustment state and may configure a second sets of uplink component carriers with the second SRS closed-loop power control adjustment state.
In some implementations, the configuration information may comprise a first SRS-TPC-physical downlink control channel (PDCCH) -Config entry corresponding to the first SRS closed-loop power control adjustment state and a second SRS-TPC-PDCCH-Config entry corresponding to the second SRS closed-loop power control adjustment state.
In some implementations, the configuration information may include a list of component carrier set indexes corresponding to a plurality of component carrier sets. The list of component carrier set indexes may configure each component carrier set of the plurality of component carrier sets with the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state.
In some implementations, the configuration information may indicate a first cc-SetIndex and a first cc-IndexInOneCC-Set corresponding to the first SRS closed-loop power control adjustment state, and a second cc-SetIndex and a second cc-
IndexInOneCC-Set corresponding to the second SRS closed-loop power control adjustment state.
In some implementations, the configuration information may include a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state. For example, the configuration information may include a field (e.g., a fieldTypeFormat2-3 field) that indicates whether an SRS request field is present, and the field may be applied to both the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In some implementations, the configuration information may include a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the a fixed closed-loop power control adjustment state. For example, the configuration information may include a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, and may not include a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In some implementations, the UE 120 may determine the SRS request field is always not present in the DCI format 2_3 associated with the second closed-loop power control adjustment state based at least in part on the SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state. For example, the UE 120 may determine that an SRS request field is not present in the DCI format 2_3 associated with the second closed-loop power control adjustment state when the field indicates that an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state.
As another example, the UE 120 may determine that an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state. In this case, the UE 120 may determine the SRS request field is always not present in the DCI format 2_3 associated with the first closed-loop power control adjustment state based at least in part on the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In some implementations, the configuration information may include a first field and a second field. The first field may indicate whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the second field may indicate whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In some implementations, the configuration information may comprise an SRS-TPC-CommandConfig. The SRS-TPC-CommandConfig may include a first fieldTypeFormat2-3 field indicating whether the SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and a second fieldTypeFormat2-3 field indicating whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In some implementations, the network node 110 may transmit, and the UE 120 may receive a first configuration and a second configuration. The first configuration may include a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state. The second configuration may include a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
As shown by reference number 610, the network node 110 may transmit, and the UE 120 may receive, a DCI format 2_3. In some implementations, the DCI format 2_3 may include a CRC scrambled by a TPC-SRS-RNTI.
As shown by reference number 615, the UE 120 may determine a starting location associated with a TPC command in the DCI format 2_3 for the uplink component carrier.
For example, the UE 120 may determine to use the first starting location or the second starting location in the DCI format 2_3 for the uplink component carrier as described elsewhere herein. The UE 120 may determine the TPC command based at least in part on the starting location.
In some implementations, the UE 120 may determine whether the uplink component carrier is associated with the first starting location or the second starting location based at least in part on the TPC-SRS-RNTI. For example, the UE 120 may determine that the uplink component carrier is associated with the first starting location
when the DCI format 2_3 includes a CRC scrambled by a first TPC-SRS-RNTI. The UE 120 may determine that the uplink component carrier is associated with the second starting location when the DCI format 2_3 includes a CRC scrambled by a second TPC-SRS-RNTI.
In some implementations, the UE 120 may determine whether the uplink component carrier is associated with the first starting location or the second starting location based at least in part on a cell associated with receiving the DCI format 2_3. For example, the UE 120 may determine that the uplink component carrier is associated with the first starting location based at least in part on the DCI format 2_3 being detected in a first monitoring cell. The UE 120 may determine that the uplink component carrier is associated with the second starting location based at least in part on the DCI format 2_3 being detected in a second monitoring cell.
As shown by reference number 620, the UE 120 may apply the TPC command to the uplink component carrier. In some implementations, the UE 120 may apply the TPC command to the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state based at least in part on whether the TPC command is associated with the first starting location or the second starting location. For example, the UE 120 may apply the TPC command to the first closed-loop power control adjustment state when the TPC command is associated with the first starting location. The UE 120 may apply the TPC command to the second closed-loop power control adjustment state when the TPC command is associated with the second starting location.
As shown by reference number 625, the UE 120 may transmit an SRS via the uplink component carrier. The UE 120 may transmit the SRS via the uplink component carrier based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state.
As indicated above, Fig. 6 is provided as an example. Other examples may differ from what is described with respect to Fig. 6.
Fig. 7 is a diagram illustrating an example process 700 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 700 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with DCI format 2_3 scrambled by different TPC-SRS-RNTIs.
As shown in Fig. 7, in some aspects, process 700 may include receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state (block 710) . For example, the UE (e.g., using reception component 1102 and/or communication manager 1106, depicted in Fig. 11) may receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state, as described above.
As further shown in Fig. 7, in some aspects, process 700 may include receiving, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI (block 720) . For example, the UE (e.g., using reception component 1102 and/or communication manager 1106, depicted in Fig. 11) may receive, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI, as described above.
As further shown in Fig. 7, in some aspects, process 700 may include transmitting, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier (block 730) . For example, the UE (e.g., using transmission component 1104 and/or communication manager 1106, depicted in Fig. 11) may transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier, as described above.
Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
In a first aspect, the DCI comprises a DCI format 2_3 message.
In a second aspect, alone or in combination with the first aspect, process 700 includes applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier based at least in part on the second component carrier being configured with a single SRS closed-loop power control adjustment state.
In a third aspect, alone or in combination with one or more of the first and second aspects, the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
In a fourth aspect, alone or in combination with one or more of the first through third aspects, the DCI includes a plurality of blocks of a first type, and each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the DCI includes a single block of a second type that indicates a plurality of TPC commands for the plurality of component carriers, where each TPC command corresponds to a respective component carrier of the plurality of component carriers.
Although Fig. 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.
Fig. 8 is a diagram illustrating an example process 800 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 800 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with DCI format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states.
As shown in Fig. 8, in some aspects, process 800 may include receiving, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment
state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state (block 810) . For example, the UE (e.g., using reception component 1102 and/or communication manager 1106, depicted in Fig. 11) may receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state, as described above.
As further shown in Fig. 8, in some aspects, process 800 may include receiving, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI (block 820) . For example, the UE (e.g., using reception component 1102 and/or communication manager 1106, depicted in Fig. 11) may receive, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI, as described above.
As further shown in Fig. 8, in some aspects, process 800 may include transmitting, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier (block 830) . For example, the UE (e.g., using transmission component 1104 and/or communication manager 1106, depicted in Fig. 11) may transmit, to the network node, an SRS based at least in part on applying the
TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier, as described above.
Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
In a first aspect, the TPC command in the DCI format 2_3 is determined based on the first starting location based at least in part the TPC-SRS-RNTI comprising a first TPC-SRS-RNTI, and the TPC command in the DCI format 2_3 is determined based on the second starting location based at least in part on the TPC-SRS-RNTI corresponding to a second TPC-SRS-RNTI.
In a second aspect, alone or in combination with the first aspect, the TPC command in the DCI format 2_3 is based on the first starting location based at least in part the DCI format 2_3 being detected in a first monitoring cell, and the TPC command in the DCI format 2_3 is based on the second starting location based at least in part on the DCI format 2_3 being detected in a second monitoring cell.
In a third aspect, alone or in combination with one or more of the first and second aspects, the configuration includes a first field indicating the first starting location and a second field indicating the second starting location.
In a fourth aspect, alone or in combination with one or more of the first through third aspects, the configuration comprises an SRS-TPC-CommandConfig, wherein the first field comprises a first startingBitOfFormat2-3 field, and wherein the second field comprises a second startingBitOfFormat2-3 field.
In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, receiving the configuration for the uplink component carrier comprises receiving a first configuration for the uplink component carrier, wherein the first configuration indicates the first starting location, and receiving a second configuration for the uplink component carrier, wherein the second configuration indicates the second starting location.
In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, a first sets of uplink component carriers is configured with the first SRS closed-loop power control adjustment state and a second sets of uplink component carriers is configured with the second SRS closed-loop power control adjustment state.
In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the configuration for the uplink component carrier comprises a first SRS-TPC-PDCCH-Config entry corresponding to the first SRS closed-loop power control adjustment state and a second SRS-TPC-PDCCH-Config entry corresponding to the second SRS closed-loop power control adjustment state.
In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the configuration includes a first set of component carrier set indexes corresponding to the first SRS closed-loop power control adjustment state and a second set of component carrier set indexes corresponding to the second SRS closed-loop power control adjustment state.
In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the configuration includes a list of component carrier set indexes corresponding to a plurality of component carrier sets, and the list of component carrier set indexes configures each component carrier set, of the plurality of component carrier sets, with the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state.
In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the configuration indicates a first cc-SetIndex and a first cc-IndexInOneCC-Set corresponding to the first SRS closed-loop power control adjustment state and a second cc-SetIndex and a second cc-IndexInOneCC-Set corresponding to the second SRS closed-loop power control adjustment state.
In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the field comprises a fieldTypeFormat2-3 field.
In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state or the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the configuration includes the field indicating whether the SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, and the SRS request field is not present in the DCI format 2_3 associated with the second closed-loop power control adjustment state based at least in part on the configuration including the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the first closed-loop power control adjustment state.
In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the configuration includes the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the second closed-loop power control adjustment state, and the SRS request field is not present in the DCI format 2_3 associated with the first closed-loop power control adjustment state based at least in part on the configuration including the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, the configuration includes a first field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and a second field indicating whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, the configuration comprises an SRS-TPC-CommandConfig, wherein the first field comprises a first fieldTypeFormat2-3 field, and wherein the second field comprises a second fieldTypeFormat2-3 field.
In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, receiving the configuration for the uplink component carrier includes receiving a first configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, and receiving a second configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
Although Fig. 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.
Fig. 9 is a diagram illustrating an example process 900 performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure. Example process 900 is an example where the apparatus or the network node (e.g., network node 110) performs operations associated with DCI format 2_3 scrambled by different TPC-SRS-RNTIs.
As shown in Fig. 9, in some aspects, process 900 may include transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state (block 910) . For example, the network node (e.g., using transmission component 1204 and/or communication manager 1206, depicted in Fig. 12) may transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state, as described above.
As further shown in Fig. 9, in some aspects, process 900 may include transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI (block 920) . For example, the network node (e.g., using transmission component 1204 and/or communication manager 1206, depicted in Fig. 12) may transmit, to the UE, DCI that indicates a TPC command for the second component
carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI, as described above.
As further shown in Fig. 9, in some aspects, process 900 may include receiving, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier (block 930) . For example, the network node (e.g., using reception component 1202 and/or communication manager 1206, depicted in Fig. 12) may receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier, as described above.
Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
In a first aspect, the DCI comprises a DCI format 2_3 message.
In a second aspect, alone or in combination with the first aspect, the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
In a third aspect, alone or in combination with one or more of the first and second aspects, the DCI includes a plurality of blocks of a first type, and each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
In a fourth aspect, alone or in combination with one or more of the first through third aspects, the DCI includes a single block of a second type that indicates a plurality of TPC commands for the plurality of component carriers where each TPC command is corresponding to a respective component carrier of the plurality of component carriers.
Although Fig. 9 shows example blocks of process 900, in some aspects, process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 9. Additionally, or alternatively, two or more of the blocks of process 900 may be performed in parallel.
Fig. 10 is a diagram illustrating an example process 1000 performed, for example, at a network node or an apparatus of a network node, in accordance with the
present disclosure. Example process 1000 is an example where the apparatus or the network node (e.g., network node 110) performs operations associated with dci format 2_3 indicating TPC commands associated with different SRS closed-loop power control adjustment states.
As shown in Fig. 10, in some aspects, process 1000 may include transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state (block 1010) . For example, the network node (e.g., using transmission component 1204 and/or communication manager 1206, depicted in Fig. 12) may transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state, as described above.
As further shown in Fig. 10, in some aspects, process 1000 may include transmitting, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI (block 1020) . For example, the network node (e.g., using transmission component 1204 and/or communication manager 1206, depicted in Fig. 12) may transmit, to the UE, the DCI format 2_3 with a cyclic redundancy check (CRC) scrambled by a TPC-SRS-RNTI, as described above.
As further shown in Fig. 10, in some aspects, process 1000 may include receiving, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier (block 1030) . For example, the network node (e.g., using reception component 1202 and/or communication manager 1206, depicted in Fig. 12) may receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier, as described above.
Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
Although Fig. 10 shows example blocks of process 1000, in some aspects, process 1000 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 10. Additionally, or alternatively, two or more of the blocks of process 1000 may be performed in parallel.
Fig. 11 is a diagram of an example apparatus 1100 for wireless communication, in accordance with the present disclosure. The apparatus 1100 may be a UE, or a UE may include the apparatus 1100. In some aspects, the apparatus 1100 includes a reception component 1102, a transmission component 1104, and/or a communication manager 1106, which may be in communication with one another (for example, via one or more buses and/or one or more other components) . In some aspects, the communication manager 1106 is the communication manager 140 described in connection with Fig. 1. As shown, the apparatus 1100 may communicate with another apparatus 1108, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1102 and the transmission component 1104.
In some aspects, the apparatus 1100 may be configured to perform one or more operations described herein in connection with Figs. 4A, 4B, 5A, 5B, and 6. Additionally, or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as process 700 of Fig. 7, process 800 of Fig. 8, or a combination thereof. In some aspects, the apparatus 1100 and/or one or more components shown in Fig. 11 may include one or more components of the UE described in connection with Fig. 2. Additionally, or alternatively, one or more components
shown in Fig. 11 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
The reception component 1102 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1108. The reception component 1102 may provide received communications to one or more other components of the apparatus 1100. In some aspects, the reception component 1102 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1100. In some aspects, the reception component 1102 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers/processors, one or more memories, or a combination thereof, of the UE described in connection with Fig. 2.
The transmission component 1104 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1108. In some aspects, one or more other components of the apparatus 1100 may generate communications and may provide the generated communications to the transmission component 1104 for transmission to the apparatus 1108. In some aspects, the transmission component 1104 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1108. In some aspects, the transmission component 1104 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers/processors, one or more memories, or a combination thereof, of the UE described in connection with Fig. 2. In some aspects,
the transmission component 1104 may be co-located with the reception component 1102 in one or more transceivers.
The communication manager 1106 may support operations of the reception component 1102 and/or the transmission component 1104. For example, the communication manager 1106 may receive information associated with configuring reception of communications by the reception component 1102 and/or transmission of communications by the transmission component 1104. Additionally, or alternatively, the communication manager 1106 may generate and/or provide control information to the reception component 1102 and/or the transmission component 1104 to control reception and/or transmission of communications.
The reception component 1102 may receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The reception component 1102 may receive, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The transmission component 1104 may transmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
The communication manager 1106 may apply the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier based at least in part on the second component carrier being configured with a single SRS closed-loop power control adjustment state.
The reception component 1102 may receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated
with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The reception component 1102 may receive, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The transmission component 1104 may transmit, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
The number and arrangement of components shown in Fig. 11 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 11. Furthermore, two or more components shown in Fig. 11 may be implemented within a single component, or a single component shown in Fig. 11 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 11 may perform one or more functions described as being performed by another set of components shown in Fig. 11.
Fig. 12 is a diagram of an example apparatus 1200 for wireless communication, in accordance with the present disclosure. The apparatus 1200 may be a network node, or a network node may include the apparatus 1200. In some aspects, the apparatus 1200 includes a reception component 1202, a transmission component 1204, and/or a communication manager 1206, which may be in communication with one another (for example, via one or more buses and/or one or more other components) . In some aspects, the communication manager 1206 is the communication manager 150 described in connection with Fig. 1. As shown, the apparatus 1200 may communicate with another apparatus 1208, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1202 and the transmission component 1204.
In some aspects, the apparatus 1200 may be configured to perform one or more operations described herein in connection with Figs. 4A, 4B, 5A, 5B, and 6. Additionally, or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as process 900 of Fig. 9, process 1000 of Fig. 10,
or a combination thereof. In some aspects, the apparatus 1200 and/or one or more components shown in Fig. 12 may include one or more components of the network node described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 12 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
The reception component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1208. The reception component 1202 may provide received communications to one or more other components of the apparatus 1200. In some aspects, the reception component 1202 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1200. In some aspects, the reception component 1202 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers/processors, one or more memories, or a combination thereof, of the network node described in connection with Fig. 2. In some aspects, the reception component 1202 and/or the transmission component 1204 may include or may be included in a network interface. The network interface may be configured to obtain and/or output signals for the apparatus 1200 via one or more communications links, such as a backhaul link, a midhaul link, and/or a fronthaul link.
The transmission component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1208. In some aspects, one or more other components of the apparatus 1200 may generate communications and may provide the generated communications to the transmission component 1204 for transmission to the apparatus 1208. In some aspects, the transmission component 1204 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-
analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1208. In some aspects, the transmission component 1204 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers/processors, one or more memories, or a combination thereof, of the network node described in connection with Fig. 2. In some aspects, the transmission component 1204 may be co-located with the reception component 1202 in one or more transceivers.
The communication manager 1206 may support operations of the reception component 1202 and/or the transmission component 1204. For example, the communication manager 1206 may receive information associated with configuring reception of communications by the reception component 1202 and/or transmission of communications by the transmission component 1204. Additionally, or alternatively, the communication manager 1206 may generate and/or provide control information to the reception component 1202 and/or the transmission component 1204 to control reception and/or transmission of communications.
The transmission component 1204 may transmit, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state. The transmission component 1204 may transmit, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI. The reception component 1202 may receive, from the UE, an SRS based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
The transmission component 1204 may transmit, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting
location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state. The transmission component 1204 may transmit, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI. The reception component 1202 may receive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
The number and arrangement of components shown in Fig. 12 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 12. Furthermore, two or more components shown in Fig. 12 may be implemented within a single component, or a single component shown in Fig. 12 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 12 may perform one or more functions described as being performed by another set of components shown in Fig. 12.
The following provides an overview of some Aspects of the present disclosure:
Aspect 1: A method of wireless communication performed by a UE, comprising: receiving, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; receiving, from the network node, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and transmit, to the network node, an SRS based at least in part on applying the TPC command to the
first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Aspect 2: The method of Aspect 1, wherein the DCI comprises a DCI format 2_3 message.
Aspect 3: The method of any of Aspects 1-2, further comprising: applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier based at least in part on the second component carrier being configured with a single SRS closed-loop power control adjustment state.
Aspect 4: The method of any of Aspects 1-3, wherein the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
Aspect 5: The method of any of Aspects 1-4, wherein the DCI includes a plurality of blocks of a first type, and wherein each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
Aspect 6: The method of any of Aspects 1-5, wherein the DCI includes a single block of a second type that indicates a plurality of TPC commands for the plurality of component carriers where each TPC command is corresponding to a respective component carrier of the plurality of component carriers.
Aspect 7: A method of wireless communication performed by a UE, comprising: receiving, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; receiving, from the network node, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and transmitting, to the
network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Aspect 8: The method of Aspect 7, wherein the TPC command in the DCI format 2_3 is determined based on the first starting location based at least in part the TPC-SRS-RNTI comprising a first TPC-SRS-RNTI, and wherein the TPC command in the DCI format 2_3 is determined based on the second starting location based at least in part on the TPC-SRS-RNTI corresponding to a second TPC-SRS-RNTI.
Aspect 9: The method of any of Aspects 7-8, wherein the TPC command in the DCI format 2_3 is based on the first starting location based at least in part the DCI format 2_3 being detected in a first monitoring cell, and wherein the TPC command in the DCI format 2_3 is based on the second starting location based at least in part on the DCI format 2_3 being detected in a second monitoring cell.
Aspect 10: The method of any of Aspects 7-9, wherein the configuration includes a first field indicating the first starting location and a second field indicating the second starting location.
Aspect 11: The method of Aspect 10, wherein the configuration comprises an SRS-TPC-CommandConfig, wherein the first field comprises a first startingBitOfFormat2-3 field, and wherein the second field comprises a second startingBitOfFormat2-3 field.
Aspect 12: The method of any of Aspects 7-11, wherein receiving the configuration for the uplink component carrier comprises: receiving a first configuration for the uplink component carrier, wherein the first configuration indicates the first starting location; and receiving a second configuration for the uplink component carrier, wherein the second configuration indicates the second starting location.
Aspect 13: The method of any of Aspects 7-12, wherein a first sets of uplink component carriers is configured with the first SRS closed-loop power control adjustment state and a second sets of uplink component carriers is configured with the second SRS closed-loop power control adjustment state.
Aspect 14: The method of Aspect 13, wherein the configuration for the uplink component carrier comprises a first SRS-TPC-PDCCH-Config entry corresponding to the first SRS closed-loop power control adjustment state and a second SRS-TPC-
PDCCH-Config entry corresponding to the second SRS closed-loop power control adjustment state.
Aspect 15: The method of any of Aspects 7-14, wherein the configuration includes a first set of component carrier set indexes corresponding to the first SRS closed-loop power control adjustment state and a second set of component carrier set indexes corresponding to the second SRS closed-loop power control adjustment state.
Aspect 16: The method of any of Aspects 7-15, wherein the configuration includes a list of component carrier set indexes corresponding to a plurality of component carrier sets, and wherein the list of component carrier set indexes configures each component carrier set, of the plurality of component carrier sets, with the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state.
Aspect 17: The method of any of Aspects 7-16, wherein the configuration indicates a first cc-SetIndex and a first cc-IndexInOneCC-Set corresponding to the first SRS closed-loop power control adjustment state and a second cc-SetIndex and a second cc-IndexInOneCC-Set corresponding to the second SRS closed-loop power control adjustment state.
Aspect 18: The method of any of Aspects 7-17, wherein the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state.
Aspect 19: The method of Aspect 18, wherein the field comprises a fieldTypeFormat2-3 field.
Aspect 20: The method of any of Aspects 7-19, wherein the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state or the DCI format 2_3 associated with the second closed-loop power control adjustment state.
Aspect 21: The method of Aspect 20, wherein the configuration includes the field indicating whether the SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, and wherein the SRS request field is not present in the DCI format 2_3 associated with the second closed-loop power control adjustment state based at least in part on the configuration including the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the first closed-loop power control adjustment state.
Aspect 22: The method of Aspect 20, wherein the configuration includes the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the second closed-loop power control adjustment state, and wherein the SRS request field is not present in the DCI format 2_3 associated with the first closed-loop power control adjustment state based at least in part on the configuration including the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the second closed-loop power control adjustment state.
Aspect 23: The method of any of Aspects 7-22, wherein the configuration includes a first field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and a second field indicating whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
Aspect 24: The method of Aspect 23, wherein the configuration comprises an SRS-TPC-CommandConfig, wherein the first field comprises a first fieldTypeFormat2-3 field, and wherein the second field comprises a second fieldTypeFormat2-3 field.
Aspect 25: The method of any of Aspects 7-24, wherein receiving the configuration for the uplink component carrier includes: receiving a first configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, and receiving a second configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
Aspect 26: A method of wireless communication performed by a network node, comprising: transmitting, to a UE, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first TPC-SRS-RNTI and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state; transmitting, to the UE, DCI that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; and receiving, from the UE, an SRS
based at least in part on the TPC command being applied to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
Aspect 27: The method of Aspect 26, wherein the DCI comprises a DCI format 2_3 message.
Aspect 28: The method of any of Aspects 26-27, wherein the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
Aspect 29: The method of any of Aspects 26-28, wherein the DCI includes a plurality of blocks of a first type, and wherein each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
Aspect 30: The method of any of Aspects 26-29, wherein the DCI includes a single block of a second type that indicates a plurality of TPC commands for the plurality of component carriers where each TPC command is corresponding to a respective component carrier of the plurality of component carriers.
Aspect 31: A method of wireless communication performed by a network node, comprising: transmitting, to a UE, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in DCI format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a TPC command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state; transmitting, to the UE, the DCI format 2_3 with a CRC scrambled by a TPC-SRS-RNTI; and receiving, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
Aspect 32: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled with the one or
more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method of one or more of Aspects 1-31.
Aspect 33: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors configured to cause the device to perform the method of one or more of Aspects 1-31.
Aspect 34: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-31.
Aspect 35: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform the method of one or more of Aspects 1-31.
Aspect 36: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-31.
Aspect 37: A device for wireless communication, the device comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the device to perform the method of one or more of Aspects 1-31.
Aspect 38: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to cause the device to perform the method of one or more of Aspects 1-31.
The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.
As used herein, the term “component” is intended to be broadly construed as hardware or a combination of hardware and at least one of software or firmware. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables,
threads of execution, procedures, or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a “processor” is implemented in hardware or a combination of hardware and software. It will be apparent that systems or methods described herein may be implemented in different forms of hardware or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems or methods is not limiting of the aspects. Thus, the operation and behavior of the systems or methods are described herein without reference to specific software code, because those skilled in the art will understand that software and hardware can be designed to implement the systems or methods based, at least in part, on the description herein. A component being configured to perform a function means that the component has a capability to perform the function, and does not require the function to be actually performed by the component, unless noted otherwise.
As used herein, “satisfying a threshold” may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples.
As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiples of the same element (for example, a + a, a + a + a, a + a + b, a + a + c, a + b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c) .
No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” and similar terms are intended to be open-ended terms that do not limit an element that they modify (for example, an element “having” A may also have B) . Further, the phrase “based on”
is intended to mean “based on or otherwise in association with” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or, ” unless explicitly stated otherwise (for example, if used in combination with “either” or “only one of” ) . It should be understood that “one or more” is equivalent to “at least one. ”
Even though particular combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically recited in the claims or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set.
Claims (30)
- A user equipment (UE) for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the UE to:receive, from a network node, an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first transmit power control (TPC) sounding reference signal (SRS) radio network temporary identifier (RNTI) and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the first SRS closed-loop power control adjustment state;receive, from the network node, downlink control information (DCI) that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; andtransmit, to the network node, an SRS based at least in part on applying the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier.
- The UE of claim 1, wherein the DCI comprises a DCI format 2_3 message.
- The UE of claim 1, wherein the one or more processors are further configured to cause the UE to:apply the TPC command to the first SRS closed-loop power control adjustment state corresponding to the second component carrier based at least in part on the second component carrier being configured with a single SRS closed-loop power control adjustment state.
- The UE of claim 1, wherein the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
- The UE of claim 1, wherein the DCI includes a plurality of blocks of a first type, and wherein each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
- The UE of claim 1, wherein the DCI includes a single block of a second type that indicates a plurality of TPC commands for the plurality of uplink component carriers, wherein each TPC command is corresponding to a respective component carrier of the plurality of uplink component carriers.
- A UE for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the UE to:receive, from a network node, a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first sounding reference signal (SRS) closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in downlink control information (DCI) format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a transmit power control (TPC) command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state;receive, from the network node, the DCI format 2_3 with a cyclic redundancy check (CRC) scrambled by a TPC-SRS-radio network temporary identifier (RNTI) ; andtransmit, to the network node, an SRS based at least in part on applying the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
- The UE of claim 7, wherein the TPC command in the DCI format 2_3 is determined based on the first starting location based at least in part the TPC-SRS-RNTI comprising a first TPC-SRS-RNTI, and wherein the TPC command in the DCI format 2_3 is determined based on the second starting location based at least in part on the TPC-SRS-RNTI corresponding to a second TPC-SRS-RNTI.
- The UE of claim 7, wherein the TPC command in the DCI format 2_3 is based on the first starting location based at least in part the DCI format 2_3 being detected in a first monitoring cell, and wherein the TPC command in the DCI format 2_3 is based on the second starting location based at least in part on the DCI format 2_3 being detected in a second monitoring cell.
- The UE of claim 7, wherein the configuration includes a first field indicating the first starting location and a second field indicating the second starting location.
- The UE of claim 10, wherein the configuration comprises an SRS-TPC-CommandConfig, wherein the first field comprises a first startingBitOfFormat2-3 field, and wherein the second field comprises a second startingBitOfFormat2-3 field.
- The UE of claim 7, wherein the one or more processors, to cause the UE to receive the configuration for the uplink component carrier, are configured to cause the UE to:receive a first configuration for the uplink component carrier, wherein the first configuration indicates the first starting location; andreceive a second configuration for the uplink component carrier, wherein the second configuration indicates the second starting location.
- The UE of claim 7, wherein a first sets of uplink component carriers is configured with the first SRS closed-loop power control adjustment state and a second sets of uplink component carriers is configured with the second SRS closed-loop power control adjustment state.
- The UE of claim 13, wherein the configuration for the uplink component carrier comprises a first SRS-TPC-physical downlink control channel (PDCCH) -Config entry corresponding to the first SRS closed-loop power control adjustment state and a second SRS-TPC-PDCCH-Config entry corresponding to the second SRS closed-loop power control adjustment state.
- The UE of claim 7, wherein the configuration includes a first set of component carrier set indexes corresponding to the first SRS closed-loop power control adjustment state and a second set of component carrier set indexes corresponding to the second SRS closed-loop power control adjustment state.
- The UE of claim 7, wherein the configuration includes a list of component carrier set indexes corresponding to a plurality of component carrier sets, and wherein the list of component carrier set indexes configures each component carrier set, of the plurality of component carrier sets, with the first SRS closed-loop power control adjustment state or the second SRS closed-loop power control adjustment state.
- The UE of claim 7, wherein the configuration indicates a first cc-SetIndex and a first cc-IndexInOneCC-Set corresponding to the first SRS closed-loop power control adjustment state and a second cc-SetIndex and a second cc-IndexInOneCC-Set corresponding to the second SRS closed-loop power control adjustment state.
- The UE of claim 7, wherein the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- The UE of claim 18, wherein the field comprises a fieldTypeFormat2-3 field.
- The UE of claim 7, wherein the configuration includes a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state or the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- The UE of claim 20, wherein the configuration includes the field indicating whether the SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, and wherein the SRS request field is not present in the DCI format 2_3 associated with the second closed-loop power control adjustment state based at least in part on the configuration including the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the first closed-loop power control adjustment state.
- The UE of claim 20, wherein the configuration includes the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the second closed-loop power control adjustment state, and wherein the SRS request field is not present in the DCI format 2_3 associated with the first closed-loop power control adjustment state based at least in part on the configuration including the field indicating whether the SRS request field is present is the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- The UE of claim 7, wherein the configuration includes a first field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state and a second field indicating whether the SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- The UE of claim 23, wherein the configuration comprises an SRS-TPC-CommandConfig, wherein the first field comprises a first fieldTypeFormat2-3 field, and wherein the second field comprises a second fieldTypeFormat2-3 field.
- The UE of claim 7, wherein the one or more processors, to cause the UE to receive the configuration for the uplink component carrier, are configured to cause the UE to:receive a first configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the first closed-loop power control adjustment state, andreceive a second configuration including a field indicating whether an SRS request field is present in the DCI format 2_3 associated with the second closed-loop power control adjustment state.
- A network node for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the network node to:transmit, to a user equipment (UE) , an uplink power control configuration for a plurality of uplink component carriers, wherein the uplink power control configuration indicates a first transmit power control (TPC) sounding reference signal (SRS) radio network temporary identifier (RNTI) and a second TPC-SRS-RNTI, wherein the plurality of uplink component carriers includes a first component carrier and a second component carrier, wherein the first component carrier is configured with a first SRS closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, and wherein the second component carrier is configured with the second SRS closed-loop power control adjustment state;transmit, to the UE, downlink control information (DCI) that indicates a TPC command for the second component carrier, wherein the DCI is scrambled by the first TPC-SRS-RNTI or the second TPC-SRS-RNTI; andreceive, from the UE, an SRS based at least in part on the TPC command being applied to the second SRS closed-loop power control adjustment state corresponding to the second component carrier.
- The network node of claim 26, wherein the first SRS closed-loop power control adjustment state is associated with a first closed-loop power control adjustment state index and the second SRS closed-loop power control adjustment state is associated with a second closed-loop power control adjustment state index.
- The network node of claim 26, wherein the DCI includes a plurality of blocks of a first type, and wherein each block, of the plurality of blocks, indicates a TPC command for a respective uplink component carrier of the plurality of uplink component carriers.
- The network node of claim 26, wherein the DCI includes a single block of a second type that indicates a plurality of TPC commands for the plurality of uplink component carriers, wherein each TPC command is corresponding to a respective component carrier of the plurality of uplink component carriers.
- A network node for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the network node to:transmit, to a user equipment (UE) , a configuration for an uplink component carrier, wherein the uplink component carrier is configured with a first sounding reference signal (SRS) closed-loop power control adjustment state and a second SRS closed-loop power control adjustment state, wherein the configuration indicates a first starting location in downlink control information (DCI) format 2_3 associated with a first closed-loop power control adjustment state and a second starting location in DCI format 2_3 associated with a second closed-loop power control adjustment state, and wherein the DCI format 2_3 associated with the first closed-loop power control adjustment state indicates a transmit power control (TPC) command for the first SRS closed-loop power control adjustment state and the DCI format 2_3 associated with the second closed-loop power control adjustment state indicates a TPC command for the second SRS closed-loop power control adjustment state;transmit, to the UE, the DCI format 2_3 with a cyclic redundancy check (CRC) scrambled by a TPC-SRS-radio network temporary identifier (RNTI) ; andreceive, from the UE, an SRS based at least in part on the TPC command in the DCI format 2_3 based on the first starting location or the TPC command in the DCI format 2_3 based on the second starting location corresponding to the uplink component carrier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2024/084020 WO2025199790A1 (en) | 2024-03-27 | 2024-03-27 | Dci format 2_3 scrambled by different transmit power control sounding reference signal radio network temporary identifiers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2024/084020 WO2025199790A1 (en) | 2024-03-27 | 2024-03-27 | Dci format 2_3 scrambled by different transmit power control sounding reference signal radio network temporary identifiers |
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| PCT/CN2024/084020 Pending WO2025199790A1 (en) | 2024-03-27 | 2024-03-27 | Dci format 2_3 scrambled by different transmit power control sounding reference signal radio network temporary identifiers |
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| WO (1) | WO2025199790A1 (en) |
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