Title:
PRECODING INFORMATION SENDING AND FEEDBACK METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/031672
Kind Code:
A1
Abstract:
Disclosed is a precoding information sending and feedback solution. A base station generates a signalling indicator and sends same to a user equipment. The signalling indicator indicates information related to a precoding set, which is determined by the base station from a stored codebook, wherein the precoding set belongs to a sub-set of the stored codebook. The user equipment selects a precoding matrix according to the signalling indicator sent by the base station, and sends a precoding matrix indicator (PMI) to the base station according to the precoding matrix. The precoding matrix is selected and feedback is provided according to a precoding matrix set, and therefore, the search complexity of the precoding matrix and the number of bits in precoding feedback can be reduced.
Inventors:
LIU JIANGHUA (CN)
ZHANG LEIMING (CN)
ZHANG LEIMING (CN)
Application Number:
PCT/CN2015/087948
Publication Date:
March 02, 2017
Filing Date:
August 24, 2015
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/04
Foreign References:
| CN101667857A | 2010-03-10 | |||
| CN102404084A | 2012-04-04 | |||
| CN102938687A | 2013-02-20 | |||
| US20140177745A1 | 2014-06-26 |
Other References:
See also references of EP 3334055A4
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