公开(公告)号：US20250096976A1

公开(公告)日：2025-03-20

申请号：US18928807

申请日：2024-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun XU ,  Junhui GAO ,  Huangping JIN

IPC: H04L5/00 ,  H04W72/1263

Abstract: A demodulation reference signal (DMRS) sending method and an apparatus, and relates to the communication field. The method includes: a terminal device receives indication information, where the indication information indicates an expansion manner of DMRS ports in at least one of a plurality of code division multiplexing (CDM) groups corresponding to one DMRS configuration type; and sends DMRSs via DMRS ports obtained through expansion in the at least one CDM group, where the DMRS ports in the at least one CDM group include legacy DMRS ports and expanded DMRS ports.

公开(公告)号：US20240322885A1

公开(公告)日：2024-09-26

申请号：US18735520

申请日：2024-06-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junhui GAO ,  Huangping JIN

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/06968 ,  H04L5/0051

Abstract: Embodiments of this application relate to the field of communication technologies and provide a channel state information feedback method, and an apparatus, to improve interaction efficiency of a communication system and reduce air interface signaling overheads. The method includes the following operations: A network device determines configuration information, where the configuration information indicates resources of N reference signals for channel measurement, and N is a positive integer greater than 1. The network device sends the configuration information and the N reference signals to a terminal device. The network device receives channel state indication information sent by the terminal device, where the indication information is obtained by the terminal device by measuring the N reference signals based on the configuration information.

公开(公告)号：US20240129092A1

公开(公告)日：2024-04-18

申请号：US18541093

申请日：2023-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junhui GAO ,  Huangping JIN ,  Xiang REN

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0626

Abstract: A channel state information (CSI) feedback method and apparatus. A terminal device receives a channel state information reference signal (CSI-RS) from a network device, and performs channel sounding based on the CSI-RS. The terminal device feeds back CSI to the network device based on a first codebook, wherein the first codebook is determined based on one or more transmit-end space-domain and frequency-domain column vectors and one or more receive-end space-domain and time-domain column vectors that represent a channel Alternatively, the first codebook is determined based on the one or more transmit-end space-domain and frequency-domain column vectors and one or more time-domain column vectors that represent the channel.