FEEDBACK OVERHEAD REDUCTION

WIPO Patent Application WO/2020/150854

A1

Certain aspects of the present disclosure generally relate to methods and apparatus for providing channel state feedback. One example method generally includes receiving at least one first pilot signal, and generating a first channel state information (CSI) report based on the at least one first pilot signal. The first CSI report may include a differential phase feedback for each subband (SB) of one or more SBs associated with the at least one first pilot signal. The method may also include transmitting the first CSI report having the differential phase feedback.

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WO/2019/138378	METHOD OF ADAPTING REPORT MAPPING BASED ON BEAMFORMING
WO/2021/253937	TERMINAL AND BASE STATION OF WIRELESS COMMUNICATION SYSTEM, AND METHODS EXECUTED BY TERMINAL AND BASE STATION

MA RUIFENG (US)
REN YUWEI (US)
CHEN BO (US)
WANG RENQIU (US)
JI TINGFANG (US)
XU HAO (US)

PCT/CN2019/072474

July 30, 2020

January 21, 2019

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QUALCOMM INC (US)
MA RUIFENG (CN)
REN YUWEI (CN)
CHEN BO (CN)
WANG RENQIU (US)
JI TINGFANG (US)
XU HAO (CN)

H04B7/06

WO2018106017A1

2018-06-14

NOKIA ET AL.: "R1-1813488:CSI feedback overhead reduction for MU-MIMO enhancements", 3GPP TSG RAN WG1 MEETING #95, 16 November 2018 (2018-11-16), XP051555544, DOI: 20191010114917A
VIVO: "R1-1812322:Discussion on CSI enhancement for MU-MIMO support", 3GPP TSG RAN WG1 MEETING #94BIS, 16 November 2018 (2018-11-16), XP051554227, DOI: 20191010115045A
ZTE: "R1-1813913:CSI Enhancement for MU-MIMO Support", 3GPP TSG RAN WG1 MEETING #95, 16 November 2018 (2018-11-16), XP051480110, DOI: 20191010115111A

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