公开(公告)号：WO2023090615A1

公开(公告)日：2023-05-25

申请号：PCT/KR2022/014161

申请日：2022-09-22

Applicant: 엘지전자 주식회사

Inventor： 조민석 ,  김봉회

IPC: H04B7/0452 ,  H04B7/0456 ,  H04B7/06

Abstract: 본 개시는 무선 통신 시스템에서 다중 사용자 프리코딩(multiuser precoding)을 수행하기 위한 것으로, 무선 통신 시스템에서 다중 사용자 프리코딩을 수행하는 장치의 동작 방법은, 후보 장치들에게 CSI(channel state information) 피드백에 관련된 설정(configuration) 정보를 송신하는 단계, 상기 설정 정보에 대응하는 기준 신호들을 송신하는 단계, 상기 후보 장치들로부터 CSI 피드백 신호들을 수신하는 단계, 상기 후보 장치들의 적어도 일부인 참여 장치들을 위한 프리코딩 벡터들을 결정하는 단계, 상기 프리코딩 벡터들을 이용하여 상기 참여 장치들로의 데이터에 대한 프리코딩을 수행하는 단계, 및 상기 프리코딩된 데이터를 송신하는 단계를 포함할 수 있다. 상기 참여 장치들은, 인코더 신경망에 의해 생성된 상기 CSI 피드백 신호들에 기반하여 디코더 신경망에 의해 결정되는 상기 후보 장치들을 위한 프리코딩 벡터들의 크기 값들에 기반하여 결정될 수 있다.

公开(公告)号：WO2023063857A1

公开(公告)日：2023-04-20

申请号：PCT/SE2021/050998

申请日：2021-10-13

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： JALDÉN, Niklas ,  HUANG, Yezi ,  FRENGER, Pål ,  WERNERSSON, Niklas

IPC: H04B7/0452 ,  H04B7/0456 ,  H04B7/06

Abstract: The present disclosure relates to a method (400) performed by a system for energy aware data processing in a communications network comprising one or more wireless devices configured to be in communication with the system. The system is configurable to communicate with each wireless device using an advanced antenna systems, AAS, and one of a plurality of operational modes. Each operational mode is associated with a computational complexity and a performance metric. The method (400) comprises estimating (410) an estimated performance metric (305') for at least one wireless device of said one or more wireless devices and determining (420) a set of one or more available operational modes (310) based on the estimated performance metric (305'). Furthermore, the method 400 comprises selecting (430) an operational mode from said set of one or more available operational modes (310) based on computational complexity (303) of said set of one or more available operational modes (310), and communicating (440) with said at least one wireless device using the selected operational mode (315).

公开(公告)号：WO2023061254A1

公开(公告)日：2023-04-20

申请号：PCT/CN2022/123438

申请日：2022-09-30

Applicant: 中兴通讯股份有限公司

Inventor： 郑正

IPC: H04W72/04 ,  H04W72/08 ,  H04W72/10 ,  H04B7/0452

Abstract: 本申请提供了多用户设备调度方法、装置、基站及计算机可读存储介质；该方法包括：对多个用户设备进行单用户信道测量得到单用户信道信息；根据单用户信道信息的强度值，将用户设备与波束配对；根据多用户设备调度条件筛选候选用户设备和候选波束；确定候选用户设备和候选波束的优先级；根据优先级确定目标波束和目标用户设备；分配资源块；根据上行信道信息对目标用户设备进行多用户调度。

公开(公告)号：WO2023016522A1

公开(公告)日：2023-02-16

申请号：PCT/CN2022/111833

申请日：2022-08-11

Applicant: 华为技术有限公司

Inventor： 高翔 ,  刘鹍鹏 ,  董昶钊

IPC: H04B17/309 ,  H04B17/336 ,  H04B17/345 ,  H04B7/0452 ,  H04W24/02 ,  H04W28/06

Abstract: 本申请实施例提供了一种通信方法和通信装置，该方法包括：网络设备基于接收到的来自第一用户设备的指示信息和信道质量指示，确定下行链路质量，其中，指示信息用于指示干扰因子。综合考虑了干扰因子对下行链路质量的影响，从而可以更加准确地确定出下行链路质量，利用了MIMO信道特征，提升了MIMO传输速率。

公开(公告)号：WO2023011336A1

公开(公告)日：2023-02-09

申请号：PCT/CN2022/108851

申请日：2022-07-29

Applicant: 华为技术有限公司

Inventor： 陈雷 ,  刘凤威

IPC: H04B7/0452

Abstract: 本申请提供一种预编码处理方法及通信装置，涉及通信技术领域。发送装置可确定预编码信息，预编码信息可包括以下中的一项或多项：预编码的码本、预编码的端口的功率、预编码的数据流的功率、预编码的端口与预编码的数据流的对应关系；一个或多个预编码的端口对应一个预编码的数据流；传输预编码信息至接收装置以便接收装置可参考预编码信息传输下行数据。本申请中，发送装置反馈的预编码信息的种类更多，以便接收设备在传输下行数据时，获取更多的参考信息。此外，每个预编码的端口对应一个预编码的数据流，可以保证预编码的码本的低峰值平均功率比PAPR特性。

公开(公告)号：WO2022266423A1

公开(公告)日：2022-12-22

申请号：PCT/US2022/033960

申请日：2022-06-17

Applicant: META PLATFORMS, INC.

Inventor： GOMADAM, Krishna Srikanth ,  HUANG, Po Han ,  SCHEIN, Brett Eric ,  GOPALA, Praveen Kumar ,  TUJKOVIC, Djordje ,  SAHIN, Mustafa Emin ,  TOMAR, Anoop Singh

IPC: H04B7/0452 ,  H04B7/06

Abstract: In one embodiment, a method includes receiving SRS received from a plurality of UEs associated with the base station from an RU associated with the base station, estimating strengths or signal-to-noise ratios (SNRs) for pre-determined beams for each of the plurality of UEs based on the received SRS, selecting a subset of the plurality of UEs to which downlink data is to be transmitted for a RBG in a TTI based on the estimated strengths or SNRs of the pre-determined beams for the plurality of UEs, computing a precoding matrix for the RBG based on the selected subset, preparing multi-layered UE data for the RBG based on the selected subset and the computed precoding matrix, sending the multi-layered UE data and the precoding matrix for the RBG to the RU, where the RU transmits pre-coded multi-layered UE data to the UEs in the subset using MIMO technologies.

公开(公告)号：WO2022214169A1

公开(公告)日：2022-10-13

申请号：PCT/EP2021/059058

申请日：2021-04-07

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： PJANIC, Dino ,  REIAL, Andres ,  TATARIA, Harsh ,  TUFVESSON, Fredrik

IPC: H04B7/0452 ,  H04L25/03

Abstract: There is provided mechanisms for transmission of MU-MIMO signals. A method is performed by a network node. The method comprises obtaining parameter values of statistics of co-scheduled user equipment served by the network node. The statistics at least pertains to mobility of each of the user equipment. The method comprises dynamically selecting a multi-user transmission configuration from candidate multi-user transmission configurations. Each candidate multi-user transmission configuration specifies at least a digital precoding mode selected from candidate digital precoding modes and an analog beam steering mode selected from candidate analog beam steering modes. The multi-user transmission configuration is selected according to the parameter values and a configured mapping of the parameter values to the candidate multi-user transmission configurations. The method comprises transmitting the MU-MIMO signals towards the user equipment using the selected multi-user transmission configuration.

公开(公告)号：WO2022211690A1

公开(公告)日：2022-10-06

申请号：PCT/SE2021/050302

申请日：2021-04-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HUANG, Yezi ,  LU, Chenguang ,  BERG, Miguel

IPC: H04B7/024 ,  H04B7/0452 ,  H04B7/06 ,  H04W88/08

Abstract: Disclosed is a method performed by a first radio unit, RU, (120) of a distributed base station system (100). The distributed base station system (100) further comprises a Baseband Unit, BBU, (110) connected to the first RU (120) over a fronthaul link (140) and a second RU (160) connected to the first RU (120) over an RU link (165). The method deals with diving the beamforming into a first part performed in the first RU (120) and a second part performed in the BBU (110). The first RU (120) determines first part of beamforming weights that it uses for performing the first part of the beamforming of uplink signals received at its antennas into intermediate signals. The first RU (120) further determines intermediate beamforming weights to be used for the second part of beamforming at the BBU (110). The first RU further receives over the RU link (165) from the second RU (160), intermediate signals determined by the second RU from first part of beamforming weights determined by the second RU and from uplink signals as received at the second RU, as well as intermediate beamforming weights determined by the second RU. The first RU combines its own intermediate signals with the intermediate signals received from the second RU and sends them to the BBU (110). The first RU (120) further combines its own intermediate beamforming weights with the intermediate beamforming weights received from the second RU and sends them to the BBU (110). The BBU then beamforms the received combined intermediate signals based on the received combined intermediate beamforming weights for estimating user-layer signals as sent as uplink signals by UEs (131, 132, 133).

公开(公告)号：WO2022199090A1

公开(公告)日：2022-09-29

申请号：PCT/CN2021/132835

申请日：2021-11-24

Applicant: 中兴通讯股份有限公司

Inventor： 肖华华 ,  吴昊 ,  鲁照华 ,  李伦

IPC: H04B7/0452 ,  H04L1/06 ,  H04B17/309

Abstract: 一种信道状态信息传输方法、装置、终端、基站和存储介质，其中，该方法包括：获取信道状态信息参数，根据所述信道状态信息参数生成第一信道状态信息和/或获取网络参数集(110)；根据所述第一信道状态信息和网络参数集合确定的神经网络生成第二信道状态信息(120)；传输所述第二信道状态信息(130)。

公开(公告)号：WO2022156891A1

公开(公告)日：2022-07-28

申请号：PCT/EP2021/051248

申请日：2021-01-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  PATURY, Shahar

Inventor： WEITZMAN, Avi ,  EZRI, Doron ,  EPSTEIN, Avner ,  KLEIN, Arik

IPC: H04B7/0452 ,  H04B7/024

Abstract: A wireless initiator access point (101) is disclosed, comprising a communication interface with an array of antennas. The communication interface is configured to operate the array of antennas with a precoding configuration for MU-MIMO communication with a plurality of wireless stations (120a-h). The communication interface is further configured to send a Null Data Packet, NDP, Announcement frame to the plurality of wireless stations (120a-h) and to trigger a wireless participator access point (111) to send a NDP frame to the plurality of wireless stations (120a-h). The communication interface is further configured to receive a plurality of Compressed Beamforming frames from the plurality of wireless stations (120a-h) and to forward the plurality of Compressed Beamforming frames to the wireless participator access point (111). Moreover, a corresponding wireless participator access point (111) is disclosed.