公开(公告)号：US20240305342A1

公开(公告)日：2024-09-12

申请号：US18665925

申请日：2024-05-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Senbao GUO ,  Guibao LI ,  Heng QIN ,  Fangfang LV

IPC: H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0632

Abstract: Embodiments of this application disclose a beamforming weight calculation method, including: determining X sub resource block groups, where one of the X sub resource block groups includes a part of a resource block group, all resource block groups in each sub resource block group are occupied by a user, and X is a positive integer greater than 1; determining, based on the X sub resource block groups, a beamforming weight calculation method used for each sub resource block group, where the beamforming weight calculation method includes normalized-eigen beamforming or power limited-eigen beamforming; and obtaining, based on the beamforming weight calculation method corresponding to each sub resource block group, a beamforming weight corresponding to the sub resource block group. For each sub resource block group, a corresponding beamforming weight calculation method is adaptively determined, and a corresponding beamforming weight is obtained.

公开(公告)号：US20220014250A1

公开(公告)日：2022-01-13

申请号：US17484936

申请日：2021-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfeng SUN ,  Guibao LI ,  Chenhong LU ,  Qunfang LOU ,  Zhiying WANG ,  Feng LI

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/08

Abstract: A channel state information measurement method and apparatus and a network side device are described. The measurement method includes configuring, by a network side device, channel state information reference signal (CSI-RS) transmit information of M access points. The CSI-RS transmit information is used to indicate the M access points to periodically send a CSI-RS to a first user equipment at a preset interval. The preset interval is a time interval and/or a subband interval, and M is an integer greater than 1. The network side device obtains channel state information (CSI) corresponding to each of the M access points. The CSI corresponding to the access point includes first CSI, and the first CSI is information that is measured based on the CSI-RS corresponding to the access point and fed back by the first user equipment.

公开(公告)号：US20220103212A1

公开(公告)日：2022-03-31

申请号：US17643997

申请日：2021-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Senbao GUO ,  Guibao LI ,  Zhiying WANG

IPC: H04B7/0456 ,  H04W52/36

Abstract: This application provides a precoding method and an apparatus for improving a power utilization of antennas. The method includes: determining a generalized inverse matrix Hm+ of a channel value matrix Hm of K users in an mth iteration in J iteration operations, where m=1, 2, . . . , and J, 1≤J≤M−K+1, and M is a quantity of antennas; selecting, from a set S1m-1 based on Hm+, an antenna index nm and an update coefficient αm corresponding to nm, where S1m-1 is a set of n unselected in antenna indexes n of the M antennas until an (m−1)th iteration ends; determining a weight matrix Wm based on Hm+ and αm; and assigning a row in Wm and corresponding to nm to a row in a final weight matrix Wopt and corresponding to nm, where Wopt is to adjust transmit powers of at least J of the M antennas to a preset maximum transmit power P after the J iteration operations end.