US 12,244,379 B2
CSI measurement method and apparatus
Ye Wu, Shanghai (CN); and Xiaoyan Bi, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jun. 9, 2021, as Appl. No. 17/343,200.
Application 17/343,200 is a continuation of application No. PCT/CN2019/124418, filed on Dec. 10, 2019.
Claims priority of application No. 201811505572.X (CN), filed on Dec. 10, 2018.
Prior Publication US 2021/0297136 A1, Sep. 23, 2021
Int. Cl. H04B 7/06 (2006.01); H04B 1/713 (2011.01); H04B 7/0456 (2017.01); H04J 11/00 (2006.01); H04L 5/00 (2006.01); H04W 24/08 (2009.01); H04W 72/04 (2023.01)
CPC H04B 7/0626 (2013.01) [H04B 1/713 (2013.01); H04B 7/0456 (2013.01); H04J 11/0033 (2013.01); H04L 5/0048 (2013.01); H04W 24/08 (2013.01); H04W 72/04 (2013.01); H04L 5/0016 (2013.01); H04L 5/0023 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A communications apparatus, comprising at least one processor and one or more memories, wherein the one or more memories are coupled to the at least one processor and store programming instructions for execution by the at least one processor to:
send first indication information to a terminal, wherein the first indication information indicates a second reference signal (RS) port in a second RS that corresponds to a first RS port in a first RS, the first RS port in the first RS and the second RS port in the second RS use a same antenna port of the terminal, the first indication information indicates a first antenna port identifier corresponding to the first RS port in the first RS and a second antenna port identifier corresponding to the second RS port in the second RS, and the first antenna port identifier is same as the second antenna port identifier;
in response to sending the first indication information to the terminal, receive the first RS and the second RS from the terminal, wherein both the first RS and the second RS are used to measure uplink channel state information (CSI), and wherein one or more antenna ports, of the terminal, corresponding to one or more RS ports comprised in the second RS are at least partially the same as one or more antenna ports, of the terminal, corresponding to one or more RS ports comprised in the first RS;
select one or two RSs from the first RS and the second RS to measure the uplink CSI; and
measure the uplink CSI based on the selected one or two RSs.