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WO2025211992A1 - Rapport de cqi pour récepteurs à faible complexité - Google Patents

Rapport de cqi pour récepteurs à faible complexité

Info

Publication number
WO2025211992A1
WO2025211992A1 PCT/SE2024/050297 SE2024050297W WO2025211992A1 WO 2025211992 A1 WO2025211992 A1 WO 2025211992A1 SE 2024050297 W SE2024050297 W SE 2024050297W WO 2025211992 A1 WO2025211992 A1 WO 2025211992A1
Authority
WO
WIPO (PCT)
Prior art keywords
rapgs
rapg
wireless device
codewords
cmrs
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
Application number
PCT/SE2024/050297
Other languages
English (en)
Inventor
Behrooz MAKKI
Xinlin ZHANG
Andreas Nilsson
Fredrik Athley
Sven JACOBSSON
Siva Muruganathan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to PCT/SE2024/050297 priority Critical patent/WO2025211992A1/fr
Publication of WO2025211992A1 publication Critical patent/WO2025211992A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0808—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0031—Multiple signaling transmission

Definitions

  • a core component of the fifth generation (5G) wireless network or new radio (NR) is the support of MIMO antenna deployments and MIMO-related techniques such as spatial multiplexing. Spatial multiplexing can be used to increase data rates in favorable channel conditions.
  • Figure 1 illustrates an example of spatial multiplexing.
  • An information-carrying symbol vector s is multiplied by an NT x r precoding matrix or precoder W, which serves to distribute the transmitted energy in a subspace of the NT dimensional vector space, where the term NT stands for number of transmitting antennas.
  • the precoder W can be constant over frequency (i.e., wideband), or frequency selective (i.e., per subband).
  • the precoder W is chosen to match the characteristics of the TVRXTVT MIMO channel matrix H n , resulting in channel-dependent precoding. This is also commonly referred to as closed- loop precoding.
  • the UE feeds back recommendations on a suitable precoder to the gNB in the form of a PMI based on downlink channel measurements.
  • the UE is configured with a channel state information (CSI) report configuration including CSI reference signals (CSI-RS) for channel measurements and a codebook of candidate precoders.
  • CSI channel state information
  • Two-dimensional antenna arrays are widely used, and such antenna arrays can be described by a number of antenna ports, N 17 in a first dimension (e.g., the horizontal dimension), a number of antenna ports, N 2 , in the second dimension perpendicular to the first dimension (e.g., the vertical dimension), and a number of polarizations N p .
  • the concept of an antenna port is non-limiting in the sense that it can refer to any virtualization (e.g., linear mapping) to the physical antenna elements. For example, pairs of physical antenna elements could be fed the same signal, and thus share the same virtualized antenna port.
  • Precoding may be interpreted as multiplying the signal to be transmitted by a set of beamforming weights on the antenna ports prior to transmission.
  • a typical approach is to tailor the precoder to the antenna form factor, i.e. taking into account N_1,N_2, and N_p when designing the precoder codebook.
  • CSI-RS can be configured to be transmitted in certain REs in a slot and certain slots.
  • Figure 3 shows an example of CSI-RS REs for 12 antenna ports, where IRE per resource block (RB) per port is shown.
  • interference measurement resource is defined in NR for a UE to measure interference.
  • An IMR resource contains 4 REs, either 4 adjacent RE in frequency in the same OFDM symbol or 2 by 2 adjacent REs in both time and frequency in a slot.
  • a UE can be configured with multiple CSI reporting settings and multiple CSI- RS resource settings.
  • Each resource setting can contain multiple resource sets, and each resource set can contain up to 8 CSI-RS resources.
  • Each CSI reporting setting contains at least the following information:
  • Frequency granularity i.e., wideband or sub-band
  • a virtual UE is a UE where multiple devices belonging to one user are combined into a single virtual UE. For virtual UEs, it may be expected that each of the different devices has their independent downlink receiver processing.
  • MIMO Multiple-input multiple-output
  • 5G fifth generation
  • a gNB equipped with many, e.g., 64 or more, antennas provides large array gains and/or performs spatial multiplexing of many users on the same time-frequency resources.
  • the spectral efficiency can be increased or, equivalently, the required power to satisfy a quality-of-service requirement can be decreased as the number of antennas increases.
  • NR Rel-18 for high-end UEs (e.g., an advanced customer premises equipment (CPE) device for fixed wireless access (FWA) deployments).
  • CPE customer premises equipment
  • CQIs channel quality indicators
  • RAPGs antenna port groups
  • CSI channel state information
  • Certain aspects of the disclosure and their embodiments may provide solutions to these or other challenges.
  • particular embodiments provide CQI reporting methods for the low-complexity receivers using RAPGs and/or virtual Ues. For example, after receiving one or more multiple channel measurement resource(s) (CMRs) from a network node, the UE may determine the CQI for each of the RAPGs based on the RAPGs capabilities and report the CQIs associated with the codewords and/or the RAPGs.
  • CMRs channel measurement resource
  • a method in a low-complexity UE with two or more RAPGs for CQI reporting comprises receiving from a network node one or multiple CMR(s) for two or multiple RAPGs.
  • the method may further comprise determining (e.g., calculating) CQI for the codewords associated with the RAPGs based on the capabilities of the RAPGs.
  • the method may further comprise reporting CQI reports associated with the codewords and/or the RAPGs.
  • the shared or separated downlink codewords may be associated with the RAPGs.
  • the RAPGs receiving shared or separated downlink (DL) codewords and/or the association between the codewords and the RAPGs may be determined based on the UE capabilities reported to the network node.
  • a single CMR may be configured and shared by the multiple RAPGs. In particular embodiments, multiple CMRs may be configured and shared by the multiple RAPGs. In particular embodiments, a single CMR may configured separately for each RAPG. In particular embodiments, multiple CMRs may be configured separately for each RAPG. [0035] In particular embodiments, receiving single or multiple CMR(s) shared or separated for the RAPGs is based on one or more of 1) the UE capabilities reported to the network node about the capability to receive one or multiple shared or separated CMR(s) for the RAPGs; and 2) the UE capabilities reported to the network node about the capability to receive joint or separated DL codeword(s) across the RAPGs.
  • the association between the configured one or multiple CMRs are explicitly signaled by the network to the UE via DL control signaling, e.g., radio recourse control (RRC), medium access control (MAC) control element (CE), downlink control information (DCI), or any combination thereof.
  • RRC radio recourse control
  • MAC medium access control
  • CE control element
  • DCI downlink control information
  • the association between the configured one or multiple CMRs is predefined in Third Generation Partnership Project (3GPP) specifications.
  • 3GPP Third Generation Partnership Project
  • determining the CQI for each of the codewords and/or RAPGs is based on one or more of the following:
  • the CQI report may contain information about one or more of 1) CQIs associated with different codewords and/or RAPGs; and 2) information for identifying the ordering of the reported CQIs (e.g., across codewords, RAPGs, etc.).
  • the CQIs associated with different codewords and/or RAPGs may be jointly encoded.
  • the joint encoding may include a first part and a second part.
  • the first part may be codeword and/or RAPG common, while the second part may be codeword and/or RAPG specific.
  • the ordering of CQI is according to one or more of the following:
  • the first element of CQI report is associated with the codeword of RAPG1, the second element associated with codeword of RAPG2, etc ).
  • the RAPGs is receiving shared or separated DL codewords according to the CQIs reported to the network.
  • the UE capability report may be based on RRC, MAC-CE, DCI, etc. signaling.
  • At least a portion of the set of codewords is shared among the two or more RAPGs.
  • At least a portion of the set of codewords is not shared among the two or more RAPGs.
  • each of the set of codewords is associated with one of the two or more RAPGs.
  • a single CMR from among the one or more CMRs is shared by the two or more RAPGs. In particular embodiments, multiple CMRs from among the one or more CMRs are shared by the two or more RAPGs. In particular embodiments, a single CMR from among the one or more CMRs is configured for each RAPG from among the two or more RAPGs. In particular embodiments, multiple CMRs from among the one or more CMRs are configured for each RAPG from among the two or more RAPGs.
  • receiving, from the network node, the one or more CMRs for the two or more RAPGs is based at least on one of: a wireless device capability to support shared or separated CMRs for the two or more RAPGs, or a wireless device capability to support shared or separated codewords across the two or more RAPGs.
  • receiving, from the network node, the one or more CMRs for the two or more RAPGs comprises receiving a signal explicitly indicating an association between the one or more CMRs and the two or more RAPGs, where the association indicates which CMR is configured for which RAPG.
  • determining the set of CQIs for the set of codewords is based at least on one of the following: a wireless device capability to support shared codewords across the two or more RAPGs, a wireless device capability to support separated codewords for each RAPG from the two or more RAPGs, a threshold number of supported codewords in a physical downlink shared channel (PDSCH) transmission, an interference cancelation capability between receivers (Rx) associated with the two or more RAPGs, a wireless device capability to combine RAPGs from among the two or more RAPGs, an interference cancelation capability between receiver (Rx) associated with a single RAPG from among the two or more RAPGs, a number and a type of each CMR from among the one or more CMRs, wherein the type of a CMR indicates whether the CMR is for a single RAPG or can be shared among the two or more RAPGs, or an association between the one or more CMRs and the two or more
  • the CQI report further comprises information indicating an order of the set of CQIs across the set of codewords.
  • the order of the set of CQIs is according to one or more of the following: an order of reported rank indicators (RIs), precoding matrix indicators (PMIs), and/or channel state information reference signal (CSI-RS) resource indicator (CRI); a RAPG order indicated in a wireless device capability report; a pre-defined rule, comprising an indication that a first element of the CQI report is associated with a first codeword of a first RAPG, and an indication that a second element of the CQI report is associated with a second codeword of a second RAPG.
  • RIs reported rank indicators
  • PMIs precoding matrix indicators
  • CSI-RS channel state information reference signal
  • the set of CQIs comprised in the CQI report is jointly encoded.
  • the CQI report is transmitted via a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH).
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • the method may further comprise transmitting a wireless device capability report to the network node prior to receiving the one or more CMRs.
  • the wireless device capability report comprises at least one of: a number of receive antennas, a number of the two or more RAPGs, an order of the two or more RAPGs, a number of receive antennas per RAPG from among the two or more RAPGs, a number of spatial multiplexing layer(s) supported by the wireless device for downlink reception per each RAPG, a direction of each RAPG, a relative direction of each RAPG with respect to other RAPGs, an interference cancelation capability between receivers (Rx) associated with the two or more RAPGs, wireless device capability to combine RAPGs from among two or more RAPGs, an interference cancelation capability between receiver (Rx) associated with a single RAPG from among the two or more RAPGs, wireless device capability for a downlink codebook-based operation via the two or more RAPGs, support for a Type I and/or Type II codebook-based operation via the two or more RAPGs, support for an operation
  • a computer program product comprising a non-transitory computer readable medium storing computer readable program code, the computer readable program code operable, when executed by processing circuitry to perform any of the methods performed by the wireless device described above.
  • a method is performed by a network node comprising receiving a CQI report from a wireless device, wherein the CQI report comprises a set of CQIs for a set of codewords, wherein at least a portion of the set of codewords is associated with two or more RAPGs.
  • the method further comprises dynamically, based at least on the received CQI report, adjusting a modulation and coding scheme (MCS) for data transmission with the wireless device.
  • MCS modulation and coding scheme
  • a computer program product comprising a non-transitory computer readable medium storing computer readable program code, the computer readable program code operable, when executed by processing circuitry to perform any of the methods performed by the network node described above.
  • Certain embodiments may provide one or more of the following technical advantage(s).
  • Particular embodiments provide methods that enable CQI determination and reporting for the low-complexity UEs using RAPGs and/or virtual UEs.
  • RAPGs and/or virtual UEs.
  • particular embodiments enable integration of such devices into the network and make DL codebook-based operation possible. This addresses one of the topics of interest for the later releases of new radio (NR) multiple-input multiple-output (MIMO) as well as for 6 th generation (6G).
  • NR new radio
  • MIMO multiple-input multiple-output
  • Figure 1 is an example transmission structure of spatial multiplexing in new radio (NR);
  • RAPGs receive antenna port groups
  • FIG. 5 is a flowchart of a method from the user equipment (UE) perspective, according to certain embodiments (dashed-line box shows an optional step);
  • Figure 7 illustrates an example communication system, according to certain embodiments.
  • Figure 8 illustrates an example UE, according to certain embodiments.
  • Figure 9 illustrates an example network node, according to certain embodiments.
  • Figure 11 illustrates a virtualization environment in which functions implemented by some embodiments may be virtualized, according to certain embodiments
  • Figure 12 illustrates a host communicating via a network node with a UE over a partially wireless connection, according to certain embodiments
  • Figure 13 illustrates a method performed by a wireless device, according to certain embodiments
  • Figure 14 illustrates a method performed by a network node, according to certain embodiments
  • Figure 15 illustrates an example block diagram of a wireless device, according to certain embodiments.
  • CQI is part of a CSI feedback, i.e., CQI is provided by the UE to the gNB in a CSI report.
  • the CQI is a measure of the radio channel quality as experienced by the UE.
  • the gNB may use the CQI to dynamically adjust the modulation and coding scheme (MCS) used for data transmission to achieve the best possible data rate and reliability given the current channel conditions.
  • MCS modulation and coding scheme
  • the UE capability report may be based on radio resource control (RRC) signaling, medium access control (MAC) control element (CE), and/or uplink control information (UCI), among others.
  • RRC radio resource control
  • MAC medium access control
  • UCI uplink control information
  • the network node may receive the UE capability report not from the UE itself but via, e.g., operation, administration, and maintenance (0AM) systems, higher layers, other network nodes, etc.
  • the UE receives from a network node one or multiple channel measurement resource(s) (CMR(s)) for two or multiple RAPGs.
  • CMR(s) channel measurement resource(s)
  • receiving single or multiple CMR(s) shared or separated for the RAPGs may be based on one or a combination of 1) the UE capabilities reported to the network node in Step 10 about the capability to receive one or multiple shared or separated CMR(s) for the RAPGs, and 2) the UE capabilities reported to the network node in Step 10 about the capability to receive joint or separated DL codeword(s) across the RAPGs.
  • the UE calculates the CQI for the codewords associated with the RAPGs based on the capabilities of the RAPGs reported in Step 10.
  • calculating the CQI for each of the codewords and/or RAPGs may be based on one or more of the following:
  • the UE reports the CQI reports associated with the codewords and/or the RAPGs.
  • the CQI report may contain information about one or more of 1) CQIs associated with different codewords and/or RAPGs, and 2) information for identifying the ordering of the reported CQIs (e.g., across codewords, RAPGs, etc.).
  • each RAPG needs to have separate codewords, and thus one CQI is reported for each RAPG.
  • the UE only reports M CQIs in the CSI report, where the M CQIs are associated with M RAPGs.
  • M DL codewords which, e.g., was indicated in UE capability signaling
  • the UE only reports M CQIs in the CSI report, where the M CQIs are associated with M RAPGs.
  • M UE consists of 4 RAPGs, but the UE only supports two DL codewords, in this case, the UE reports 2 CQIs, where each of the two CQIs is associated with one of the four RAPGs.
  • the report includes information about which of the 4 RAPGs the reported CQIs are associated with.
  • the core network 106 connects the network nodes 110 to one or more hosts, such as host 116. These connections may be direct or indirect via one or more intermediary networks or devices. In other examples, network nodes may be directly coupled to hosts.
  • the core network 106 includes one more core network nodes (e.g., core network node 108) that are structured with hardware and software components. Features of these components may be substantially similar to those described with respect to the UEs, network nodes, and/or hosts, such that the descriptions thereof are generally applicable to the corresponding components of the core network node 108.
  • Example core network nodes include functions of one or more of a Mobile Switching Center (MSC), Mobility Management Entity (MME), Home Subscriber Server (HSS), Access and Mobility Management Function (AMF), Session Management Function (SMF), Authentication Server Function (AUSF), Subscription Identifier De-concealing function (SIDF), Unified Data Management (UDM), Security Edge Protection Proxy (SEPP), Network Exposure Function (NEF), and/or a User Plane Function (UPF).
  • MSC Mobile Switching Center
  • MME Mobility Management Entity
  • HSS Home Subscriber Server
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • AUSF Authentication Server Function
  • SIDF Subscription Identifier De-concealing function
  • UDM Unified Data Management
  • SEPP Security Edge Protection Proxy
  • NEF Network Exposure Function
  • UPF User Plane Function
  • the host 116 may be under the ownership or control of a service provider other than an operator or provider of the access network 104 and/or the telecommunication network 102, and may be operated by the service provider or on behalf of the service provider.
  • the host 116 may host a variety of applications to provide one or more service. Examples of such applications include live and pre-recorded audio/video content, data collection services such as retrieving and compiling data on various ambient conditions detected by a plurality of UEs, analytics functionality, social media, functions for controlling or otherwise interacting with remote devices, functions for an alarm and surveillance center, or any other such function performed by a server.
  • the communication system 100 of Figure 7 enables connectivity between the UEs, network nodes, and hosts.
  • the telecommunication network 102 is a cellular network that implements 3 GPP standardized features. Accordingly, the telecommunications network 102 may support network slicing to provide different logical networks to different devices that are connected to the telecommunication network 102. For example, the telecommunications network 102 may provide Ultra Reliable Low Latency Communication (URLLC) services to some UEs, while providing Enhanced Mobile Broadband (eMBB) services to other UEs, and/or Massive Machine Type Communication (mMTC)/Massive loT services to yet further UEs.
  • URLLC Ultra Reliable Low Latency Communication
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communication
  • the hub 114 communicates with the access network 104 to facilitate indirect communication between one or more UEs (e.g., UE 112c and/or 112d) and network nodes (e.g., network node 110b).
  • the hub 114 may be a controller, router, content source and analytics, or any of the other communication devices described herein regarding UEs.
  • the hub 114 may be a broadband router enabling access to the core network 106 for the UEs.
  • the hub 114 may be a controller that sends commands or instructions to one or more actuators in the UEs.
  • the hub 114 may be a data collector that acts as temporary storage for UE data and, in some embodiments, may perform analysis or other processing of the data.
  • the hub 114 may be a content source. For example, for a UE that is a VR headset, display, loudspeaker or other media delivery device, the hub 114 may retrieve VR assets, video, audio, or other media or data related to sensory information via a network node, which the hub 114 then provides to the UE either directly, after performing local processing, and/or after adding additional local content.
  • the hub 114 acts as a proxy server or orchestrator for the UEs, in particular in if one or more of the UEs are low energy loT devices.
  • the input/output interface 206 may be configured to provide an interface or interfaces to an input device, output device, or one or more input and/or output devices.
  • Examples of an output device include a speaker, a sound card, a video card, a display, a monitor, a printer, an actuator, an emitter, a smartcard, another output device, or any combination thereof.
  • An input device may allow a user to capture information into the UE 200.
  • the memory 210 may be or be configured to include memory such as random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic disks, optical disks, hard disks, removable cartridges, flash drives, and so forth.
  • the memory 210 includes one or more application programs 214, such as an operating system, web browser application, a widget, gadget engine, or other application, and corresponding data 216.
  • the memory 210 may store, for use by the UE 200, any of a variety of various operating systems or combinations of operating systems.
  • the memory 210 may be configured to include a number of physical drive units, such as redundant array of independent disks (RAID), flash memory, USB flash drive, external hard disk drive, thumb drive, pen drive, key drive, high-density digital versatile disc (HD-DVD) optical disc drive, internal hard disk drive, Blu-Ray optical disc drive, holographic digital data storage (HDDS) optical disc drive, external mini-dual in-line memory module (DIMM), synchronous dynamic random access memory (SDRAM), external micro-DIMM SDRAM, smartcard memory such as tamper resistant module in the form of a universal integrated circuit card (UICC) including one or more subscriber identity modules (SIMs), such as a USIM and/or ISIM, other memory, or any combination thereof.
  • RAID redundant array of independent disks
  • HD-DVD high-density digital versatile disc
  • HDDS holographic digital data storage
  • DIMM external mini-dual in-line memory module
  • SDRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • communication functions of the communication interface 212 may include cellular communication, Wi-Fi communication, LPWAN communication, data communication, voice communication, multimedia communication, short- range communications such as Bluetooth, near-field communication, location-based communication such as the use of the global positioning system (GPS) to determine a location, another like communication function, or any combination thereof.
  • GPS global positioning system
  • a UE when in the form of an Internet of Things (loT) device, may be a device for use in one or more application domains, these domains comprising, but not limited to, city wearable technology, extended industrial application and healthcare.
  • loT device are a device which is or which is embedded in: a connected refrigerator or freezer, a TV, a connected lighting device, an electricity meter, a robot vacuum cleaner, a voice controlled smart speaker, a home security camera, a motion detector, a thermostat, a smoke detector, a door/window sensor, a flood/moisture sensor, an electrical door lock, a connected doorbell, an air conditioning system like a heat pump, an autonomous vehicle, a surveillance system, a weather monitoring device, a vehicle parking monitoring device, an electric vehicle charging station, a smart watch, a fitness tracker, a head-mounted display for Augmented Reality (AR) or Virtual Reality (VR), a wearable for tactile augmentation or sensory enhancement, a water sprinkler, an animal-
  • AR Augmented Reality
  • VR
  • FIG. 9 shows a network node 300 in accordance with some embodiments.
  • network node refers to equipment capable, configured, arranged and/or operable to communicate directly or indirectly with a UE and/or with other network nodes or equipment, in a telecommunication network.
  • network nodes include, but are not limited to, access points (APs) (e.g., radio access points), base stations (BSs) (e.g., radio base stations, Node Bs, evolved Node Bs (eNBs) and NR NodeBs (gNBs)).
  • APs access points
  • BSs base stations
  • Node Bs Node Bs
  • eNBs evolved Node Bs
  • gNBs NR NodeBs
  • the network node 300 includes a processing circuitry 302, a memory 304, a communication interface 306, and a power source 308.
  • the network node 300 may be composed of multiple physically separate components (e.g., a NodeB component and a RNC component, or a BTS component and a BSC component, etc.), which may each have their own respective components.
  • the network node 300 comprises multiple separate components (e.g., BTS and BSC components)
  • one or more of the separate components may be shared among several network nodes.
  • a single RNC may control multiple NodeBs.
  • each unique NodeB and RNC pair may in some instances be considered a single separate network node.
  • the network node 300 may be configured to support multiple radio access technologies (RATs).
  • RATs radio access technologies
  • some components may be duplicated (e.g., separate memory 304 for different RATs) and some components may be reused (e.g., a same antenna 310 may be shared by different RATs).
  • the network node 300 may also include multiple sets of the various illustrated components for different wireless technologies integrated into network node 300, for example GSM, WCDMA, LTE, NR, WiFi, Zigbee, Z-wave, LoRaWAN, Radio Frequency Identification (RFID) or Bluetooth wireless technologies. These wireless technologies may be integrated into the same or different chip or set of chips and other components within network node 300.
  • RFID Radio Frequency Identification
  • the processing circuitry 302 may comprise a combination of one or more of a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application-specific integrated circuit, field programmable gate array, or any other suitable computing device, resource, or combination of hardware, software and/or encoded logic operable to provide, either alone or in conjunction with other network node 300 components, such as the memory 304, to provide network node 300 functionality.
  • the processing circuitry 302 includes a system on a chip (SOC). In some embodiments, the processing circuitry 302 includes one or more of radio frequency (RF) transceiver circuitry 312 and baseband processing circuitry 314. In some embodiments, the radio frequency (RF) transceiver circuitry 312 and the baseband processing circuitry 314 may be on separate chips (or sets of chips), boards, or units, such as radio units and digital units. In alternative embodiments, part or all of RF transceiver circuitry 312 and baseband processing circuitry 314 may be on the same chip or set of chips, boards, or units.
  • SOC system on a chip
  • the processing circuitry 302 includes one or more of radio frequency (RF) transceiver circuitry 312 and baseband processing circuitry 314.
  • the radio frequency (RF) transceiver circuitry 312 and the baseband processing circuitry 314 may be on separate chips (or sets of chips), boards, or units, such as radio units and digital units. In alternative embodiments, part or all of RF trans
  • the memory 304 may store any suitable instructions, data, or information, including a computer program, software, an application including one or more of logic, rules, code, tables, and/or other instructions capable of being executed by the processing circuitry 302 and utilized by the network node 300.
  • the memory 304 may be used to store any calculations made by the processing circuitry 302 and/or any data received via the communication interface 306.
  • the processing circuitry 302 and memory 304 is integrated.
  • the communication interface 306 is used in wired or wireless communication of signaling and/or data between a network node, access network, and/or UE.
  • the communication interface 306 comprises port(s)/terminal(s) 316 to send and receive data, for example to and from a network over a wired connection.
  • the communication interface 306 also includes radio front-end circuitry 318 that may be coupled to, or in certain embodiments a part of, the antenna 310.
  • Radio front-end circuitry 318 comprises filters 320 and amplifiers 322.
  • the radio front-end circuitry 318 may be connected to an antenna 310 and processing circuitry 302.
  • the radio front-end circuitry may be configured to condition signals communicated between antenna 310 and processing circuitry 302.
  • the radio front-end circuitry 318 may receive digital data that is to be sent out to other network nodes or UEs via a wireless connection.
  • the radio front-end circuitry 318 may convert the digital data into a radio signal having the appropriate channel and bandwidth parameters using a combination of filters 320 and/or amplifiers 322. The radio signal may then be transmitted via the antenna 310. Similarly, when receiving data, the antenna 310 may collect radio signals which are then converted into digital data by the radio front-end circuitry 318. The digital data may be passed to the processing circuitry 302. In other embodiments, the communication interface may comprise different components and/or different combinations of components.
  • the network node 300 does not include separate radio front-end circuitry 318, instead, the processing circuitry 302 includes radio front-end circuitry and is connected to the antenna 310.
  • the processing circuitry 302 includes radio front-end circuitry and is connected to the antenna 310.
  • all or some of the RF transceiver circuitry 312 is part of the communication interface 306.
  • the communication interface 306 includes one or more ports or terminals 316, the radio front-end circuitry 318, and the RF transceiver circuitry 312, as part of a radio unit (not shown), and the communication interface 306 communicates with the baseband processing circuitry 314, which is part of a digital unit (not shown).
  • the antenna 310, communication interface 306, and/or the processing circuitry 302 may be configured to perform any receiving operations and/or certain obtaining operations described herein as being performed by the network node. Any information, data and/or signals may be received from a UE, another network node and/or any other network equipment. Similarly, the antenna 310, the communication interface 306, and/or the processing circuitry 302 may be configured to perform any transmitting operations described herein as being performed by the network node. Any information, data and/or signals may be transmitted to a UE, another network node and/or any other network equipment.
  • FIG 10 is a block diagram of a host 400, which may be an embodiment of the host 116 of Figure 7, in accordance with various aspects described herein.
  • the host 400 may be or comprise various combinations hardware and/or software, including a standalone server, a blade server, a cloud-implemented server, a distributed server, a virtual machine, container, or processing resources in a server farm.
  • the host 400 may provide one or more services to one or more UEs.
  • the host 400 includes processing circuitry 402 that is operatively coupled via a bus 404 to an input/output interface 406, a network interface 408, a power source 410, and a memory 412.
  • Other components may be included in other embodiments. Features of these components may be substantially similar to those described with respect to the devices of previous figures, such as Figures 3 and 4, such that the descriptions thereof are generally applicable to the corresponding components of host 400.
  • the memory 412 may include one or more computer programs including one or more host application programs 414 and data 416, which may include user data, e.g., data generated by a UE for the host 400 or data generated by the host 400 for a UE.
  • Embodiments of the host 400 may utilize only a subset or all of the components shown.
  • the host application programs 414 may be implemented in a container-based architecture and may provide support for video codecs (e.g., Versatile Video Coding (VVC), High Efficiency Video Coding (HEVC), Advanced Video Coding (AVC), MPEG, VP9) and audio codecs (e.g., FLAC, Advanced Audio Coding (AAC), MPEG, G.711), including transcoding for multiple different classes, types, or implementations of UEs (e.g., handsets, desktop computers, wearable display systems, heads-up display systems).
  • VVC Versatile Video Coding
  • HEVC High Efficiency Video Coding
  • AVC Advanced Video Coding
  • MPEG MPEG
  • VP9 Video Coding
  • audio codecs e.g., FLAC, Advanced Audio Coding (AAC), MPEG, G.711
  • the host application programs 414 may also provide for user authentication and licensing checks and may periodically report health, routes, and content availability to a central node, such as a device in or on the edge of a core network. Accordingly, the host 400 may select and/or indicate a different host for over-the-top services for a UE.
  • the host application programs 414 may support various protocols, such as the HTTP Live Streaming (HLS) protocol, Real-Time Messaging Protocol (RTMP), Real-Time Streaming Protocol (RTSP), Dynamic Adaptive Streaming over HTTP (MPEG-DASH), etc.
  • HLS HTTP Live Streaming
  • RTMP Real-Time Messaging Protocol
  • RTSP Real-Time Streaming Protocol
  • MPEG-DASH Dynamic Adaptive Streaming over HTTP
  • FIG 11 is a block diagram illustrating a virtualization environment 500 in which functions implemented by some embodiments may be virtualized.
  • virtualizing means creating virtual versions of apparatuses or devices which may include virtualizing hardware platforms, storage devices and networking resources.
  • virtualization can be applied to any device described herein, or components thereof, and relates to an implementation in which at least a portion of the functionality is implemented as one or more virtual components.
  • Some or all of the functions described herein may be implemented as virtual components executed by one or more virtual machines (VMs) implemented in one or more virtual environments 500 hosted by one or more of hardware nodes, such as a hardware computing device that operates as a network node, UE, core network node, or host.
  • VMs virtual machines
  • the node may be entirely virtualized.
  • Hardware 504 includes processing circuitry, memory that stores software and/or instructions executable by hardware processing circuitry, and/or other hardware devices as described herein, such as a network interface, input/output interface, and so forth.
  • Software may be executed by the processing circuitry to instantiate one or more virtualization layers 506 (also referred to as hypervisors or virtual machine monitors (VMMs)), provide VMs 508a and 508b (one or more of which may be generally referred to as VMs 508), and/or perform any of the functions, features and/or benefits described in relation with some embodiments described herein.
  • the virtualization layer 506 may present a virtual operating platform that appears like networking hardware to the VMs 508.
  • the VMs 508 comprise virtual processing, virtual memory, virtual networking or interface and virtual storage, and may be run by a corresponding virtualization layer 506. Different embodiments of the instance of a virtual appliance 502 may be implemented on one or more of VMs 508, and the implementations may be made in different ways. Virtualization of the hardware is in some contexts referred to as network function virtualization (NFV). NFV may be used to consolidate many network equipment types onto industry standard high volume server hardware, physical switches, and physical storage, which can be located in data centers, and customer premise equipment.
  • NFV network function virtualization
  • a VM 508 may be a software implementation of a physical machine that runs programs as if they were executing on a physical, non-virtualized machine.
  • Each of the VMs 508, and that part of hardware 504 that executes that VM be it hardware dedicated to that VM and/or hardware shared by that VM with others of the VMs, forms separate virtual network elements.
  • a virtual network function is responsible for handling specific network functions that run in one or more VMs 508 on top of the hardware 504 and corresponds to the application 502.
  • Hardware 504 may be implemented in a standalone network node with generic or specific components. Hardware 504 may implement some functions via virtualization. Alternatively, hardware 504 may be part of a larger cluster of hardware (e.g. such as in a data center or CPE) where many hardware nodes work together and are managed via management and orchestration 510, which, among others, oversees lifecycle management of applications 502. In some embodiments, hardware 504 is coupled to one or more radio units that each include one or more transmitters and one or more receivers that may be coupled to one or more antennas. Radio units may communicate directly with other hardware nodes via one or more appropriate network interfaces and may be used in combination with the virtual components to provide a virtual node with radio capabilities, such as a radio access node or a base station.
  • radio units may communicate directly with other hardware nodes via one or more appropriate network interfaces and may be used in combination with the virtual components to provide a virtual node with radio capabilities, such as a radio access node or a base station.
  • FIG. 12 shows a communication diagram of a host 602 communicating via a network node 604 with a UE 606 over a partially wireless connection in accordance with some embodiments.
  • the network node 604 includes hardware enabling it to communicate with the host 602 and UE 606.
  • the connection 660 may be direct or pass through a core network (like core network 106 of Figure 7) and/or one or more other intermediate networks, such as one or more public, private, or hosted networks.
  • a core network like core network 106 of Figure 7
  • one or more other intermediate networks such as one or more public, private, or hosted networks.
  • an intermediate network may be a backbone network or the Internet.
  • the UE 606 includes hardware and software, which is stored in or accessible by UE 606 and executable by the UE’s processing circuitry.
  • the software includes a client application, such as a web browser or operator-specific “app” that may be operable to provide a service to a human or non-human user via UE 606 with the support of the host 602.
  • a client application such as a web browser or operator-specific “app” that may be operable to provide a service to a human or non-human user via UE 606 with the support of the host 602.
  • an executing host application may communicate with the executing client application via the OTT connection 650 terminating at the UE 606 and host 602.
  • the UE's client application may receive request data from the host's host application and provide user data in response to the request data.
  • the OTT connection 650 may transfer both the request data and the user data.
  • the UE's client application may interact with the user to generate the user data that it provides to the host application through the OTT
  • the OTT connection 650 may extend via a connection 660 between the host 602 and the network node 604 and via a wireless connection 670 between the network node 604 and the UE 606 to provide the connection between the host 602 and the UE 606.
  • the connection 660 and wireless connection 670, over which the OTT connection 650 may be provided, have been drawn abstractly to illustrate the communication between the host 602 and the UE 606 via the network node 604, without explicit reference to any intermediary devices and the precise routing of messages via these devices.
  • the host 602 provides user data, which may be performed by executing a host application.
  • the user data is associated with a particular human user interacting with the UE 606.
  • the user data is associated with a UE 606 that shares data with the host 602 without explicit human interaction.
  • the host 602 initiates a transmission carrying the user data towards the UE 606.
  • the host 602 may initiate the transmission responsive to a request transmitted by the UE 606.
  • the request may be caused by human interaction with the UE 606 or by operation of the client application executing on the UE 606.
  • the transmission may pass via the network node 604, in accordance with the teachings of the embodiments described throughout this disclosure. Accordingly, in step 612, the network node 604 transmits to the UE 606 the user data that was carried in the transmission that the host 602 initiated, in accordance with the teachings of the embodiments described throughout this disclosure. In step 614, the UE 606 receives the user data carried in the transmission, which may be performed by a client application executed on the UE 606 associated with the host application executed by the host 602.
  • the UE 606 executes a client application which provides user data to the host 602.
  • the user data may be provided in reaction or response to the data received from the host 602.
  • the UE 606 may provide user data, which may be performed by executing the client application.
  • the client application may further consider user input received from the user via an input/output interface of the UE 606. Regardless of the specific manner in which the user data was provided, the UE 606 initiates, in step 618, transmission of the user data towards the host 602 via the network node 604.
  • the network node 604 receives user data from the UE 606 and initiates transmission of the received user data towards the host 602.
  • the host 602 receives the user data carried in the transmission initiated by the UE 606.
  • factory status information may be collected and analyzed by the host 602.
  • the host 602 may process audio and video data which may have been retrieved from a UE for use in creating maps.
  • the host 602 may collect and analyze real-time data to assist in controlling vehicle congestion (e.g., controlling traffic lights).
  • the host 602 may store surveillance video uploaded by a UE.
  • the host 602 may store or control access to media content such as video, audio, VR or AR which it can broadcast, multicast or unicast to UEs.
  • the host 602 may be used for energy pricing, remote control of non-time critical electrical load to balance power generation needs, location services, presentation services (such as compiling diagrams etc. from data collected from remote devices), or any other function of collecting, retrieving, storing, analyzing and/or transmitting data.
  • a measurement procedure may be provided for the purpose of monitoring data rate, latency and other factors on which the one or more embodiments improve.
  • the measurement procedure and/or the network functionality for reconfiguring the OTT connection may be implemented in software and hardware of the host 602 and/or UE 606.
  • sensors (not shown) may be deployed in or in association with other devices through which the OTT connection 650 passes; the sensors may participate in the measurement procedure by supplying values of the monitored quantities exemplified above, or supplying values of other physical quantities from which software may compute or estimate the monitored quantities.
  • Figure 13 is a flowchart illustrating an example method performed by a wireless device, according to certain embodiments. In particular embodiments, one or more steps of Figure 13 may be performed by UE 200 described with respect to Figure 8. The method is for CQI reporting by the wireless device.
  • the wireless device may use two or more receive antenna port groups (RAPGs) to perform one or more operations described herein.
  • RAPGs receive antenna port groups
  • the wireless device may transmit a wireless device capability report to a network node (e.g., network node 300 of Figure 9).
  • the wireless device capability report comprises at least one of: a number of receive antennas, a number of the two or more RAPGs, an order of the two or more RAPGs, a number of receive antennas per RAPG from among the two or more RAPGs, a number of spatial multiplexing layer(s) supported by the wireless device for downlink reception per each RAPG, a direction of each RAPG, a relative direction of each RAPG with respect to other RAPGs, an interference cancelation capability between receivers (Rx) associated with the two or more RAPGs, wireless device capability to combine RAPGs from among two or more RAPGs, an interference cancelation capability between receiver (Rx) associated with a single RAPG from among the two or more RAPGs
  • the wireless device transmits a CQI report comprising the determined CQIs to the network node.
  • the determination of the set of CQIs is based at least on the capability of each of two or more RAPGs.
  • At least a portion of the set of codewords is shared among the two or more RAPGs.
  • At least a portion of the set of codewords is not shared among the two or more RAPGs.
  • each of the set of codewords is associated with one of the two or more RAPGs.
  • determining the set of CQIs for set of codewords comprises at least one of: determining which one or more RAGPs are configured to share a codeword with at least another RAPG, and determining which one or more RAPGs are not configured to share a codeword with at least another RAPG, where determining which one or more RAPGs are or are not configured to share a codeword with at least another RAPG is based at least on wireless device capability to support shared codewords among the two or more RAPGs.
  • a single CMR from among the one or more CMRs is shared by the two or more RAPGs. In particular embodiments, multiple CMRs from among the one or more CMRs are shared by the two or more RAPGs. In particular embodiments, a single CMR from among the one or more CMRs is configured for each RAPG from among the two or more RAPGs. In particular embodiments, multiple CMRs from among the one or more CMRs are configured for each RAPG from among the two or more RAPGs.
  • receiving, from the network node, the one or more CMRs for the two or more RAPGs is based at least on one of a wireless device capability to support shared or separated CMRs for the two or more RAPGs, or a wireless device capability to support shared or separated codewords across the two or more RAPGs.
  • receiving, from the network node, the one or more CMRs for the two or more RAPGs comprises receiving a signal explicitly indicating an association between the one or more CMRs and the two or more RAPGs, where the association indicates which CMR is configured for which RAPG.
  • an association between the one or more CMRs and the two or more RAPGs is implicitly indicated in a specification based on a predefined rule, where the predefined rule is based at least on an order of the two or more RAPGs and an order of the one or more CMRs.
  • determining the set of CQIs for the set of codewords is based at least on one of the following: a wireless device capability to support shared codewords across the two or more RAPGs, a wireless device capability to support separated codewords for each RAPG from the two or more RAPGs, a threshold number of supported codewords in a physical downlink shared channel (PDSCH) transmission, an interference cancelation capability between receivers (Rx) associated with the two or more RAPGs, a wireless device capability to combine RAPGs from among the two or more RAPGs, an interference cancelation capability between receiver (Rx) associated with a single RAPG from among the two or more RAPGs, a number and a type of each CMR from among the one or more CMRs, wherein the type of a CMR indicates whether the CMR is for a single RAPG or can be shared among the two or more RAPGs, or an association between the one or more CMRs and the two or more
  • the order of the set of CQIs is according to one or more of the following: an order of reported rank indicators (RIs), precoding matrix indicators (PMIs), and/or channel state information reference signal (CSI-RS) resource indicator (CRI); a RAPG order indicated in a wireless device capability report; a pre-defined rule, comprising an indication that a first element of the CQI report is associated with a first codeword of a first RAPG, and an indication that a second element of the CQI report is associated with a second codeword of a second RAPG.
  • RIs reported rank indicators
  • PMIs precoding matrix indicators
  • CSI-RS channel state information reference signal
  • the set of CQIs comprised in the CQI report is jointly encoded.
  • the encoding is in a two-part format, comprising a first part and a second part, where the first part indicates codeword and/or RAPG common, comprising information that is common across the set of codewords and/or the two or more RAPGs; and the second part indicates codeword and/or RAPG specific, comprising information that is specific to each codeword and/or each RAPG.
  • Virtual apparatus 1500 may comprise processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include digital signal processors (DSPs), special-purpose digital logic, and the like.
  • the processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as read-only memory (ROM), random-access memory, cache memory, flash memory devices, optical storage devices, etc.
  • Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein, in several embodiments.
  • references in the specification to “one embodiment,” “an embodiment,” “an example embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to implement such feature, structure, or characteristic in connection with other embodiments, whether or not explicitly described.
  • computing devices described herein may include the illustrated combination of hardware components, other embodiments may comprise computing devices with different combinations of components. It is to be understood that these computing devices may comprise any suitable combination of hardware and/or software needed to perform the tasks, features, functions and methods disclosed herein. Determining, calculating, obtaining or similar operations described herein may be performed by processing circuitry, which may process information by, for example, converting the obtained information into other information, comparing the obtained information or converted information to information stored in the network node, and/or performing one or more operations based on the obtained information or converted information, and as a result of said processing making a determination.
  • processing circuitry may process information by, for example, converting the obtained information into other information, comparing the obtained information or converted information to information stored in the network node, and/or performing one or more operations based on the obtained information or converted information, and as a result of said processing making a determination.
  • computing devices may comprise multiple different physical components that make up a single illustrated component, and functionality may be partitioned between separate components.
  • a communication interface may be configured to include any of the components described herein, and/or the functionality of the components may be partitioned between the processing circuitry and the communication interface.
  • non-computationally intensive functions of any of such components may be implemented in software or firmware and computationally intensive functions may be implemented in hardware.
  • processing circuitry executing instructions stored on in memory, which in certain embodiments may be a computer program product in the form of a non-transitory computer- readable storage medium.
  • some or all of the functionality may be provided by the processing circuitry without executing instructions stored on a separate or discrete device-readable storage medium, such as in a hard-wired manner.
  • the processing circuitry can be configured to perform the described functionality. The benefits provided by such functionality are not limited to the processing circuitry alone or to other components of the computing device, but are enjoyed by the computing device as a whole, and/or by end users and a wireless network generally.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon certains modes de réalisation, l'invention concerne un procédé mis en œuvre par un dispositif sans fil. Le procédé consiste à recevoir, en provenance d'un nœud de réseau, une ou plusieurs ressources de mesure de canal (CMR) pour les deux groupes de ports d'antenne de réception (RAPG) ou plus. Le procédé consiste en outre à déterminer un ensemble d'indicateurs de qualité de canal (CQI) pour un ensemble de mots de code, au moins une partie de l'ensemble de mots de code étant associée aux deux RAPG ou plus. Le procédé consiste en outre à transmettre un rapport de CQI comprenant les CQI déterminés au nœud de réseau.
PCT/SE2024/050297 2024-04-02 2024-04-02 Rapport de cqi pour récepteurs à faible complexité Pending WO2025211992A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230189237A1 (en) * 2020-08-06 2023-06-15 Sony Group Corporation Electronic device and method for wireless communication, and computer-readable storage medium
WO2024015260A1 (fr) * 2022-07-11 2024-01-18 Interdigital Patent Holdings, Inc. Transmission multi-panneau simultanée à mots de code multiples

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230189237A1 (en) * 2020-08-06 2023-06-15 Sony Group Corporation Electronic device and method for wireless communication, and computer-readable storage medium
WO2024015260A1 (fr) * 2022-07-11 2024-01-18 Interdigital Patent Holdings, Inc. Transmission multi-panneau simultanée à mots de code multiples

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