Title:
CHANNEL RECONSTRUCTION METHOD, BASE STATION AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2022/160345
Kind Code:
A1
Abstract:
The present disclosure provides a base station, a terminal, and a channel reconstruction method executed by the base station and the terminal. The base station comprises: a transmitting unit, which is configured to transmit channel state information reference signals of multiple ports to the terminal, the channel state information reference signals of the multiple ports having a first density in a frequency domain within one time interval; a receiving unit, which is configured to receive precoding matrix indication information of a first granularity from the terminal; a processing unit, which is configured to determine a channel of a second granularity according to the precoding matrix indication information of the first granularity, and perform downlink precoding on the channel, wherein the second granularity is finer than the first granularity.
Inventors:
WANG XIN (CN)
HOU XIAOLIN (CN)
LI ANXIN (CN)
CHEN LAN (CN)
HIROKI HARADA (JP)
HOU XIAOLIN (CN)
LI ANXIN (CN)
CHEN LAN (CN)
HIROKI HARADA (JP)
Application Number:
PCT/CN2021/074691
Publication Date:
August 04, 2022
Filing Date:
February 01, 2021
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W72/04
Domestic Patent References:
| WO2020091665A1 | 2020-05-07 |
Foreign References:
| CN103905101A | 2014-07-02 | |||
| CN102790637A | 2012-11-21 | |||
| US20120140851A1 | 2012-06-07 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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