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WO2025075839A1 - Identifiants de groupe d'unités radio ouvertes - Google Patents

Identifiants de groupe d'unités radio ouvertes Download PDF

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Publication number
WO2025075839A1
WO2025075839A1 PCT/US2024/048286 US2024048286W WO2025075839A1 WO 2025075839 A1 WO2025075839 A1 WO 2025075839A1 US 2024048286 W US2024048286 W US 2024048286W WO 2025075839 A1 WO2025075839 A1 WO 2025075839A1
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WIPO (PCT)
Prior art keywords
group
messages
message
user group
aspects
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/US2024/048286
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English (en)
Inventor
Deepak Agarwal
Abhishek Saurabh Sachidanand Sinha
Michael Francis Garyantes
James Krysl
Rohan Salvi
Mark Wallace
Srikant Jayaraman
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Qualcomm Inc
Original Assignee
Qualcomm Inc
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
Priority claimed from US18/894,464 external-priority patent/US20250113348A1/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of WO2025075839A1 publication Critical patent/WO2025075839A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users

Definitions

  • a UE may communicate with a network node via downlink communications and uplink communications.
  • Downlink (or “DL”) refers to a communication link from the network node to the UE
  • uplink (or “UL”) refers to a communication link from the UE to the network node.
  • Some wireless networks may support device-to-device communication, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and/or a wireless personal area network (WPAN) link, among other examples).
  • SL sidelink
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • New Radio which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP.
  • the method may include receiving one or more messages from an open distributed unit (O-DU), each message of the one or more messages including a group ID for a user group of UEs that share time-frequency resources in a slot but occupy different spatial layers.
  • the method may include classifying the one or more messages into respective user groups based at least in part on the group IDs.
  • the method may include generating one or more beam weights for a spatial layer associated with each respective user group based at least in part on information from other, co-scheduled spatial layers of the respective user group.
  • Some aspects described herein relate to an apparatus for wireless communication at a network entity.
  • the apparatus 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 individually or collectively configured to cause the network entity to receive one or more messages from an O- DU, each message of the one or more messages including a group ID for a user group of UEs that share time-frequency resources in a slot but occupy different spatial layers.
  • the one or more processors may be individually or collectively configured to cause the network entity to classify the one or more messages into respective user groups based at least in part on the group IDs.
  • the one or more processors may be individually or collectively configured to cause the network entity to generate one or more beam weights for a spatial layer associated with each respective user group based at least in part on information from other, co-scheduled spatial layers of the respective user group.
  • Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network entity.
  • the set of instructions when executed by one or more processors of the network entity, may cause the network entity to generate a unique group ID for each user group of one or more user groups, each user group including a group of UEs that share time-frequency resources in a slot but occupy different spatial layers.
  • the set of instructions when executed by one or more processors of the network entity, may cause the network entity to transmit one or more messages to an O-RU, where each message of the one or more messages is associated with a respective user group and includes a group ID that is unique to the respective user group.
  • the apparatus may include means for 0097-5129PCT 3 transmitting one or more messages to an O-RU, where each message of the one or more messages is associated with a respective user group and includes a group ID that is unique to the respective user group.
  • Some aspects described herein relate to an apparatus for wireless communication.
  • the apparatus may include means for receiving one or more messages from an O-DU, each message of the one or more messages including a group ID for a user group of UEs that share time-frequency resources in a slot but occupy different spatial layers.
  • the apparatus may include means for classifying the one or more messages into respective user groups based at least in part on the group IDs.
  • aspects may be implemented via integrated chip embodiments or other non-module- component based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, and/or artificial intelligence devices).
  • non-module- component based devices e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, and/or artificial intelligence devices.
  • aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and/or system-level components.
  • Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects.
  • Fig.1 is a diagram illustrating an example of a wireless network, in accordance with the present disclosure.
  • Fig.2 is a diagram illustrating an example of a network node in communication with a user equipment (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.
  • Fig.4 is a diagram illustrating an example associated with features supported by an open distributed unit (O-DU), in accordance with the present disclosure.
  • Fig.5 is a diagram illustrating an example of an O-DU using user group identifiers (IDs), in accordance with the present disclosure.
  • Fig.6 is a diagram illustrating an example of an O-DU using user group IDs, in accordance with the present disclosure.
  • Fig.7 is a diagram illustrating an example of an O-DU using user group IDs, in accordance with the present disclosure.
  • Fig.8 is a diagram illustrating an example of using user group IDs for open radio unit (O-RU) messages, in accordance with the present disclosure.
  • OF-RU open radio unit
  • a network node may be implemented in an aggregated or disaggregated architecture.
  • RAN radio access network
  • a base station such as a Node B (NB), an evolved NB (eNB), an NR base station, a 5G NB, an access point (AP), a transmit receive point (TRP), or a cell, among other examples
  • a base station may be implemented as an aggregated base station (also known as a standalone base station or a monolithic base station) or a disaggregated base station.
  • a disaggregated base station may be configured to utilize a protocol stack that is physically or logically distributed among two or more units (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).
  • Disaggregated base stations may be utilized in an open radio access network (O-RAN (such as the network configuration sponsored by the O-RAN Alliance)) to facilitate scaling of communication systems by separating base station functionality into one or more units that can be individually deployed.
  • O-RAN open radio access network
  • An open RU may receive messages from an open DU (O-DU).
  • an O-DU may generate group IDs to identify user groups, where each user group has a unique group ID.
  • the O-DU may generate and assign a group ID to the message to identify the user group to which the message belongs.
  • the message may include a section.
  • the message may be in a section (e.g., ST 5 or new Section Type).
  • the message may include a field or a section that is specific to indicating group IDs. In some 0097-5129PCT 6 aspects, the message may include an extension to a section.
  • the O-RU may receive the messages and classify the messages into user groups using the group IDs assigned to the user groups.
  • the O-RU may generate one or more beam weights for a spatial layer associated with each respective user group based at least in part on information from other, co-scheduled spatial layers of the respective user group. Each layer may influence the beam weights for another layer, especially for neighboring layers.
  • the information may include pilot information, such as a pilot signal associated with channel estimation.
  • the O-RU may form a receive beam using the beam weights for signals from the UEs.
  • the group IDs may allow the O-DU to transmit C-Plane messaging per layer, per UE, per code division multiplexing (CDM) group, or MU-MIMO user group, while allowing the O- RU to simplify MU-MIMO group derivation using the unique group ID.
  • CDM code division multiplexing
  • MU-MIMO user group By having the O-DU generate and assign group IDs for user groups, rather than having the O-RU figure out how to organize the messages for the user groups, the O-RU conserves processing resources and reduces latency.
  • the user group ID enables the O-RU to identify each group of users across different spatial layers that are in the same time-frequency resources and determine beam weights that account for any interference between the different spatial layers.
  • the user group ID removes, from the O-RU, the complexity of determining user overlays across the different spatial layers.
  • Fig.1 is a diagram illustrating an example of a wireless network 100, in accordance with the present disclosure.
  • the wireless network 100 may be or may include elements of a 5G (e.g., NR) network and/or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples.
  • 5G e.g., NR
  • 4G Long Term Evolution
  • a network node may support one or multiple (e.g., three) cells.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a network node 110 that is mobile (e.g., a mobile network node).
  • the terms “base station” or “network node” may refer to an aggregated base station, a disaggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof.
  • IAB integrated access and backhaul
  • a UE 120 may be a cellular phone (e.g., 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 (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and/or a satellite radio), a vehicular component or sensor, a smart meter/sensor, industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and/or any other suitable device that is configured to communicate via a wireless or wired medium.
  • PDA personal digital assistant
  • WLL
  • Some UEs 120 may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs.
  • An MTC UE and/or an eMTC UE may include, for example, a robot, an unmanned aerial vehicle, a remote device, a sensor, a meter, a monitor, and/or a location tag, that may communicate with a network node, another device (e.g., a remote device), or some other entity.
  • Some UEs 120 may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband IoT) devices.
  • Some UEs 120 may be considered a Customer Premises Equipment.
  • a UE 120 may be included inside a housing that houses components of the UE 120, such as processor components and/or memory components.
  • the processor components and the memory components may be coupled together.
  • the processor components e.g., one or more processors
  • the memory components e.g., a memory
  • any number of wireless networks 100 may be deployed in a given geographic area.
  • Each wireless network 100 may support a particular RAT and may operate on one or more frequencies.
  • a RAT may be referred to as a radio technology, an air interface, or the like.
  • a frequency may be referred to as a carrier, a frequency channel, or the like.
  • sub-6 GHz may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies.
  • millimeter wave may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and/or FR5, or may be within the EHF band.
  • the UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R ⁇ 1).
  • the network node 110 of example 200 includes one or more radio frequency components, such as antennas 234 and a modem 232.
  • a network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node.
  • Some network nodes 110 may not include radio frequency components that facilitate direct communication with the UE 120, such as one or more CUs, or one or more DUs.
  • a transmit processor 220 may receive data, from a data source 212, intended for the UE 120 (or a set of UEs 120).
  • each output symbol stream may be provided to a modulator component (shown as MOD) of a modem 232.
  • Each modem 232 may use a respective modulator component to process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream.
  • Each modem 232 may further use a respective modulator component to process (e.g., convert to analog, amplify, filter, and/or upconvert) the output sample stream to obtain a downlink signal.
  • the modems 232a through 232t may 0097-5129PCT 13 transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), shown as antennas 234a through 234t.
  • Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from the modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to a data sink 260, and may provide decoded control information and system information to a controller/processor 280.
  • controller/processor may refer to one or more controllers, one or more processors, or a combination thereof.
  • One or more antennas may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and/or one or more antenna arrays, among other examples.
  • An antenna panel, an antenna group, a set of antenna elements, and/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, and/or one or more antenna elements coupled to one or more transmission and/or reception components, such as one or more components of Fig.2.
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, and/or CQI) from the controller/processor 280.
  • the transmit processor 264 may generate reference symbols for one or more reference signals.
  • the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed 0097-5129PCT 14 by the modems 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110.
  • the modem 254 of the UE 120 may include a modulator and a demodulator.
  • the UE 120 includes a transceiver.
  • the transceiver may include any combination of the antenna(s) 252, the modem(s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, and/or the TX MIMO processor 266.
  • the transceiver may be used by a processor (e.g., the controller/processor 280) and the memory 282 to perform aspects of any of the methods described herein (e.g., with reference to Figs.4-12).
  • the uplink signals from UE 120 and/or other UEs may be received by the antennas 234, processed by the modem 232 (e.g., a demodulator component, shown as DEMOD, of the modem 232), detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120.
  • the receive processor 238 may provide the decoded data to a data sink 239 and provide the decoded control information to the controller/processor 240.
  • the network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244.
  • the network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and/or uplink communications.
  • the modem 232 of the network node 110 may include a modulator and a demodulator.
  • the network node 110 includes a transceiver.
  • the transceiver may include any combination of the antenna(s) 234, the modem(s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 220, and/or the TX MIMO processor 230.
  • the transceiver may be used by a processor (e.g., the controller/processor 240) and the memory 242 to perform aspects of any of the methods described herein (e.g., with reference to Figs.4-12).
  • the controller/processor of a network entity may perform one or more techniques associated with selecting and indicating O-RU capabilities, as described in more detail elsewhere herein.
  • the O-RU and the O-DU described herein may be a network entity or may be included in a network entity.
  • the controller/processor 240 of the network node 110, the controller/processor 280 of the UE 120, and/or any other component(s) of Fig.2 may perform or direct operations of, for example, process 900 of Fig.9, process 1000 of Fig.10, and/or other processes as described herein.
  • the memory 242 and the memory 282 may store data and program codes for the network node 110 and the UE 120, respectively.
  • the memory 242 and/or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication.
  • the one or more instructions when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the network node 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the network node 110 to perform or direct operations of, for 0097-5129PCT 15 example, process 900 of Fig.9, process 1000 of Fig.10, and/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.
  • the means for the network entity to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
  • an individual processor may perform all of the functions described as being performed by the one or more processors.
  • one or more processors may collectively perform a set of functions. For example, a first set of (one or more) processors of the one or more processors may perform a first function 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 function 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 processors” should be understood to refer to any one or more of the processors described in connection with Fig. 2.
  • references to “one or more memories” should be understood to refer to any one or more 0097-5129PCT 16 memories of a corresponding device, such as the memory described in connection with Fig. 2.
  • functions 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.
  • 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.
  • a UE 120 may be simultaneously served by multiple RUs 340.
  • Each of the units including the CUs 310, the DUs 330, the RUs 340, as well as the Near-RT RICs 325, the Non-RT RICs 315, and the SMO Framework 305, may include one or more interfaces or be coupled with one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium.
  • Each of the units, or an associated processor or controller providing instructions to one or multiple communication interfaces of the respective unit can be configured to communicate with one or more of the other units via the transmission medium.
  • the Near-RT RIC 325 may be configured to include a logical function that enables near-real- time control and optimization of RAN elements and resources via data collection and actions over an interface (such as via an E2 interface) connecting one or more CUs 310, one or more DUs 330, or both, as well as an O-eNB, with the Near-RT RIC 325.
  • the Non-RT RIC 315 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 325 and may be received at the SMO Framework 305 or the Non-RT RIC 315 from non-network data sources or from network functions.
  • the Non-RT RIC 315 or the Near-RT RIC 325 may be configured to tune RAN behavior or performance.
  • the Non-RT RIC 315 may monitor long-term trends and patterns for performance and employ AI/ML models to perform corrective actions through the SMO Framework 305 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies).
  • a DU and an RU may exchange management configurations on a management plane (M-plane) between the DU and the RU.
  • the RU may advertise O-RU capabilities via the M- plane (e.g., via parameters in a modeling language, such as a Yet Another Next Generation (YANG) or other data modeling/network configuration/management language).
  • M-plane management plane
  • YANG Yet Another Next Generation
  • a section description (e.g., Description #1) for a layer may include: Section 5 (ST 5) for RB0-99, ueId-30.
  • Section Description #2 (one layer) may include ST 5 for RB0-18, ueId-24.
  • Section Description #3 (two layers) may include ST 5 + Section 10 (SE 10) for RB0-46, ueId-10 and 11.
  • the group ID may be a DMRS group ID that is part of a DMRS section extension “X” specification.
  • the section extension “X” may be a new extension for DMRS beamforming (BF) for sending a 0097-5129PCT 21 DMRS configuration and DMRS port information, along with ST 5.
  • the C-Plane sections for this MU-MIMO user group may populate this unique group ID in the section extension “X”.
  • the O-RU may receive messages and classify the messages into user groups using the group IDs assigned to the user groups.
  • the O-RU may generate one or more beam weights for a spatial layer in or associated with each respective user group based at least in part on information from other, co-scheduled spatial layers of the respective user group.
  • the O-DU 810 may generate a group ID for each user group.
  • the O-DU 810 may consider and select UEs that share the same time- frequency resources in a slot to be in the same user group.
  • the O-DU 810 may also select UEs 0097-5129PCT 24 for a user group based at least in part on UE locations, UE types, and/or UE capabilities.
  • the O-DU 810 may transmit one or more messages, where each message includes a group ID for the respective user group with which the message is associated.
  • the O-RU 820 may classify messages into respective user groups based on the group IDs.
  • Fig.9 is a diagram illustrating an example process 900 performed, for example, at a network entity or an apparatus of a network entity, in accordance with the present disclosure.
  • Example process 900 is an example where the apparatus or the network entity (e.g., network node 110, O-DU 810) performs operations associated with using group IDs for O-RU messages.
  • process 900 may include generating a unique group ID for each user group of one or more user groups, each user group including a group of UEs that share identical time-frequency resources in a slot but occupy different spatial layers (block 910).
  • the O-DU 810 is to resolve any partial sharing before assigning group IDs.
  • the network entity includes an O-DU, and the O-DU is configured to select users (UEs) for a user group of the one or more user groups.
  • each message of the one or more messages includes a section.
  • each message of the one or more messages includes an extension attached to a section.
  • the extension includes a DMRS extension.
  • the network entity may generate one or more beam weights for a spatial layer in or associated with each respective user group based at least in part on information from other, co- scheduled spatial layers of the respective user group, as described above, for example, with reference to Figs.5, 6, 7, and/or 8.
  • 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.
  • the network entity includes an O-RU.
  • the information includes a pilot signal associated with channel estimation.
  • each message of the one or more messages includes a section.
  • each message of the one or more messages includes an extension attached to a section.
  • the extension includes a DMRS extension.
  • each message of the one or more messages includes a field specific to indicating group IDs.
  • the apparatus 1100 may be configured to perform one or more operations described herein in connection with Figs.1-8. Additionally, or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as process 900 of Fig.9.
  • the apparatus 1100 and/or one or more components shown in Fig.11 may include one or more components of the O-DU 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.
  • 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.
  • 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.
  • 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 O-DU described in connection with Fig.2.
  • 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).
  • the communication manager 1206 is the communication manager 150 described in connection with Fig.1.
  • 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.
  • the apparatus 1200 may be configured to perform one or more operations described herein in connection with Figs.1-8.
  • the apparatus 1200 may be configured to perform one or more processes described herein, such as process 1000 of Fig.10.
  • the apparatus 1200 and/or one or more components shown in Fig.12 may include one or more components of the O-RU 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.
  • 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 O-RU described in connection with Fig.2.
  • 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 0097-5129PCT 30 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 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 reception component 1202 may receive one or more messages from an O-DU, each message including a group ID for a user group of UEs that share time-frequency resources in a slot but occupy different spatial layers.
  • the communication manager 1206 may classify the one or more messages into respective user groups based at least in part on the group IDs.
  • the communication manager 1206 may generate one or more beam weights for a spatial layer in or associated with each respective user group based at least in part on information from other, co- scheduled spatial layers of the respective user group.
  • the reception component 1202 may receive one or more signals from one or more UEs, the one or more signals being received are beam formed by the one or more beam weights to generate a spatial layer.
  • the transmission component 1204 may transmit spatial layers for the one or more signals to the O-DU.
  • 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.
  • Aspect 7 The method of any of Aspects 1-6, wherein each message of the one or more messages includes a field specific to indicating group IDs.
  • Aspect 8 A method of wireless communication performed by a network entity, comprising: receiving one or more messages from an open distributed unit (O-DU), each message of the one or more messages including a group identifier (ID) for a user group of user equipments (UEs) that share time-frequency resources in a slot but occupy different spatial layers; classifying the one or more messages into respective user groups based at least in part on the group IDs; and generating one or more beam weights for a spatial layer associated with each respective user group based at least in part on information from other, co-scheduled spatial layers of the respective user group.
  • OFD open distributed unit
  • UEs user equipments
  • Aspect 16 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 1-15.
  • Aspect 17 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 1-15.
  • Aspect 18 An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-15.
  • Aspect 19 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 1-15.
  • Aspect 20 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 1-15.
  • Aspect 21 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 1-15.
  • Aspect 22 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 1-15.
  • 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. 0097-5129PCT 33
  • the term “component” is intended to be broadly construed as hardware and/or a combination of hardware and software.
  • 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, and/or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • a “processor” is implemented in hardware and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects.
  • a general purpose processor may be a microprocessor, or any conventional processor, controller, microcontroller, or state machine.
  • a processor also may be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • particular processes and methods may be performed by circuitry that is specific to a given function.
  • “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, not equal to the threshold, or the like.
  • “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 (e.g., 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).
  • the terms “has,” “have,” “having,” or the like are intended to be open-ended terms that do not limit an element that they modify (e.g., an element “having” A may also have B). Further, the phrase “based on” is intended to mean “based, at least in part, on” 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 (e.g., if used in combination with “either” or “only one of”). 0097-5129PCT 35

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

Abstract

Divers aspects de la présente divulgation concernent de manière générale la communication sans fil. Selon certains aspects, une unité distribuée ouverte (O-DU) peut générer un identifiant de groupe unique (ID) pour chaque groupe d'utilisateurs parmi un ou plusieurs groupes d'utilisateurs, chaque groupe d'utilisateurs comprenant un groupe d'équipements utilisateurs (UE) qui partagent des ressources temps-fréquence dans un créneau mais occupent différentes couches spatiales. L'O-DU peut transmettre un ou plusieurs messages à une unité radio ouverte (O-RU), chaque message étant associé à un groupe d'utilisateurs respectif comprenant un ID de groupe pour le groupe d'utilisateurs respectif. De nombreux autres aspects sont décrits.
PCT/US2024/048286 2023-10-02 2024-09-25 Identifiants de groupe d'unités radio ouvertes Pending WO2025075839A1 (fr)

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US202363587422P 2023-10-02 2023-10-02
US63/587,422 2023-10-02
US18/894,464 2024-09-24
US18/894,464 US20250113348A1 (en) 2023-10-02 2024-09-24 Open radio unit group identifiers

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2664207B1 (fr) * 2011-01-14 2017-08-23 Qualcomm Incorporated(1/3) Attribution d'un identifiant de groupe pour service de liaison directe (dls)
EP2656512B1 (fr) * 2010-12-22 2020-08-12 Intel Corporation Point d'accès mu-mimo et station d'utilisateur comprenant des procédés de gestion de groupe d'utilisateurs multiples
US20230275784A1 (en) * 2022-02-28 2023-08-31 Qualcomm Incorporated Enhanced fronthaul interface split using demodulation reference signal channel estimates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2656512B1 (fr) * 2010-12-22 2020-08-12 Intel Corporation Point d'accès mu-mimo et station d'utilisateur comprenant des procédés de gestion de groupe d'utilisateurs multiples
EP2664207B1 (fr) * 2011-01-14 2017-08-23 Qualcomm Incorporated(1/3) Attribution d'un identifiant de groupe pour service de liaison directe (dls)
US20230275784A1 (en) * 2022-02-28 2023-08-31 Qualcomm Incorporated Enhanced fronthaul interface split using demodulation reference signal channel estimates

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