Title:
CHANNEL STATE INFORMATION TRANSMITTING METHOD, RECEIVING METHOD, DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/024157
Kind Code:
A1
Abstract:
The present application relates to the field of mobile communications, and in particular to a multi-antenna technology in a wireless communication system. Provided in the instant application are a channel state information (CSI) transmitting method, device and system. In said solution, a terminal device feeds a first rank and a first pre-coded matrix indication used for a public channel back to a base station, and feeds a second rank and a second pre-coded matrix indication used for a service channel back to the base station. The first pre-coded matrix instruction is used to indicate a first pre-coded matrix in a first pre-coded matrix set. The second pre-coded matrix instruction is used to indicate a second pre-coded matrix in a second pre-coded matrix set. The first pre-coded matrix set is different from the second pre-coded matrix set. The channel state information is obtained by means of different pre-coded matrix sets being used for public channels and service channels. The present invention is able to satisfy system requirements, while also saving bits that are fed back.
Inventors:
LIU JIANQIN (CN)
Application Number:
PCT/CN2017/094757
Publication Date:
February 08, 2018
Filing Date:
July 27, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/04
Foreign References:
| CN104620626A | 2015-05-13 | |||
| CN104901733A | 2015-09-09 | |||
| US9270428B2 | 2016-02-23 | |||
| US20130315189A1 | 2013-11-28 | |||
| CN201610639121A | 2016-08-05 |
Other References:
See also references of EP 3484061A4
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