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Title:
METHOD FOR UPLINK SOUNDING REFERENCE SIGNAL PRECODER SELECTION FOR INTERFERENCE SUPPRESSION
Document Type and Number:
WIPO Patent Application WO/2024/065810
Kind Code:
A1
Abstract:
This disclosure provides methods for selecting a precoder for uplink sounding reference signal (SRS), useful in multi-transmission and reception point (multi-TRP) cases. A user equipment (UE) device receives (450), from at least a first network entity, a first channel state information reference signal (CSI-RS), and also receives (455), from a second network entity, a second CSI-RS. The UE device then receives (430), from the first network entity, for example, control signaling indicating at least one SRS resource set associated with the first CSI-RS or the second CSI-RS. The UE device transmits (470) precoded SRS resources based on the received SRS resource set and a precoder computed based on the first CSI-RS and the second CSI-RS. In some cases, the UE device determines (460) the precoder based on the first CSI-RS and the second CSI-RS such that the precoded SRS resources suppress interference with signals received at a third network entity.

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Inventors:
ZHANG YUSHU (CN)
WU CHIH-HSIANG (CN)
Application Number:
PCT/CN2022/123591
Publication Date:
April 04, 2024
Filing Date:
September 30, 2022
Export Citation:
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Assignee:
GOOGLE LLC (US)
ZHANG YUSHU (CN)
International Classes:
H04B7/024; H04B7/0456; H04B7/06; H04L5/00
Domestic Patent References:
WO2021147682A12021-07-29
WO2022028262A12022-02-10
WO2020162718A12020-08-13
WO2021090109A12021-05-14
Foreign References:
US20200350967A12020-11-05
US20190341982A12019-11-07
Other References:
MEDIATEK INC: "Remaining issues in non-codebook based transmission", vol. RAN WG1, no. Vancouver, Canada; 20180122 - 20180126, 13 January 2018 (2018-01-13), XP051384647, Retrieved from the Internet [retrieved on 20180113]
MEDIATEK INC: "Discussion on CSI-RS configuration update for CQI reporting and active spatial relation switch", vol. RAN WG4, no. Reno, Nevada, USA; 20191118 - 20191122, 8 November 2019 (2019-11-08), XP051817933, Retrieved from the Internet [retrieved on 20191108]
Attorney, Agent or Firm:
CHINA SINDA INTELLECTUAL PROPERTY LIMITED (CN)
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