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Patent Searching and Data


Title:
MULTI-USER PRECODING METHOD AND APPARATUS, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/100206
Kind Code:
A1
Abstract:
The present application relates to the field of communications, and in particular to a multi-user precoding method and apparatus, and a device. The method comprises: determining symbols to be transmitted in K spatial layers, K being the total number of streams of multiple users and being an integer greater than 0; for each spatial layer k among the K spatial layers, determining, according to a linear precoder G, a rotation phase θk corresponding to the k-th spatial layer in a phase rotation precoding GP frame, k being an integer, and 1≤k≤K; performing phase rotation, according to the rotation phase θk, on multiple symbols to be transmitted sk of the k-th spatial layer to obtain first transmission symbols; and performing linear precoding and weighting on multiple first transmission symbols to obtain second transmission symbols. According to present method, the continuous rotation phase for the symbols to be transmitted of a linear precoding system can be calculated and weighted, and the phase depends on the symbols to be transmitted, such that the transmission power is minimized.

Inventors:
XUE YUN (CN)
QIN YIPING (CN)
DE LUNA DUCOING JUAN CARLOS (GB)
NIKITOPOULOS KONSTANTINOS (GB)
Application Number:
PCT/CN2021/114739
Publication Date:
May 19, 2022
Filing Date:
August 26, 2021
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/0413
Domestic Patent References:
WO2017069510A12017-04-27
Foreign References:
CN101510799A2009-08-19
CN105959045A2016-09-21
CN110581724A2019-12-17
US20110228878A12011-09-22
US20150023279A12015-01-22
Attorney, Agent or Firm:
E-TONE INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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