Title:
PRECODING PROCESSING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/008477
Kind Code:
A1
Abstract:
The present application discloses a precoding processing method and device, the method includes: a base station determines first downlink channel information according to a pilot signal received from terminal equipment; the base station receives the precoding matrix indication PMI from the terminal equipment, determines second downlink channel information according to the PMI, determines the precoding matrix of the downlink channel according to the first downlink channel information and the second downlink channel information, and uses the precoding matrix to perform precoding processing. When calculating the downlink BF weight value, the base station of this method merges part of the downlink channel information obtained from the pilot signal with the precoding matrix indicated by the PMI, to make up for the quantization error generated by the single PMI indication feedback, and this method improves the accuracy of beamforming weight value.
Inventors:
XU HENG (CN)
LI JIAN (CN)
LI JIAN (CN)
Application Number:
PCT/CN2020/101596
Publication Date:
January 21, 2021
Filing Date:
July 13, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/0456
Domestic Patent References:
| WO2017172333A1 | 2017-10-05 | |||
| WO2015032038A1 | 2015-03-12 | |||
| WO2018071094A1 | 2018-04-19 |
Foreign References:
| CN103701512A | 2014-04-02 | |||
| CN102468947A | 2012-05-23 | |||
| US20170026101A1 | 2017-01-26 | |||
| CN201910629025A | 2019-07-12 |
Other References:
See also references of EP 3993281A4
Attorney, Agent or Firm:
CHINABLE IP (CN)
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