CHANNEL MEASUREMENT AND REPORTING IN DISTRIBUTED WIRELESS SYSTEMS

WIPO Patent Application WO/2023/028910

A1

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a control message indicating a joint transmission configuration (e.g., fully coherent, partially coherent, or non-coherent) for a distributed system associated with a base station. The UE may receive reference signals from respective antenna panels of groups of distributed antenna panels. The UE may generate a channel state information (CSI) report based on the joint transmission configuration and the reference signals. In some examples, the UE may receive an indication of a reporting order for parameters in the CSI report, may separately or jointly encode channel state information reference signal resource indicators (CRIs) for the report, may modify a codebook (e.g., a precoder matrix) or cross-group co-phasing coefficients in the CSI report, or any combination thereof. The UE may transmit the CSI report to the base station.

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LY HUNG DINH (US)
ZHANG YU (US)
LEE HYOJIN (US)

PCT/CN2021/115909

March 09, 2023

September 01, 2021

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QUALCOMM INC (US)
LY HUNG DINH (US)
ZHANG YU (CN)
LEE HYOJIN (US)

H04B7/024; H04B7/06

US20180042028A1	2018-02-08
US20210143870A1	2021-05-13

NTD PATENT & TRADEMARK AGENCY LTD. (CN)

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