COMMUNICATION METHOD AND APPARATUS

WIPO Patent Application WO/2023/029948

A1

A communication method and apparatus, which are used for improving the feedback precision for channel state information. The method comprises: a terminal device receiving N pilot signals that are sent by network devices by means of N CSI resources, and performing channel measurement on the N CSI resources on the basis of the corresponding pilot signals; and the terminal device then sending channel state information to the network devices, wherein the channel state information comprises an identifier of a first CSI resource and a PMI, the N CSI resources correspond to the N pilot signals on a one-to-one basis, the N pilot signals correspond to mapping relationships between antenna ports of N types of network devices and transceiving antennas of the network devices, and at least two of the mapping relationships between the antenna ports of the N types of network devices and the transceiving antennas of the network devices are different, or the N pilot signals correspond to N inter-polarization phases, and at least two of the N inter-polarization phases are different. In this way, the feedback precision for channel state information can be improved, such that a precoding matrix that is determined by a network device better matches a channel.

WANG BOLEI (CN)
WANG YIFENG (CN)
DIAO YINGFEI (CN)
HU HONGJIE (CN)

PCT/CN2022/112169

March 09, 2023

August 12, 2022

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HUAWEI TECH CO LTD (CN)

H04W24/10; H04B7/06; H04W72/04

WO2017012346A1

2017-01-26

CN112822714A	2021-05-18
CN108199754A	2018-06-22
CN103812545A	2014-05-21
CN106899522A	2017-06-27

TDIP & PARTNERS (CN)

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