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Title:
SUBBAND-SPECIFIC CODEBOOK SUBSET RESTRICTION
Document Type and Number:
WIPO Patent Application WO/2021/203233
Kind Code:
A1
Abstract:
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first configuration of one or more channel state information reference signal resources and a second configuration of a channel state information report associated with the one or more channel state information reference signal resources. In some cases, the second configuration may include at least one of an indication of a codebook, a set of codebook restriction sets, and a configured bandwidth. The UE may then identify a mapping between one or more frequency-domain subbands of the configured bandwidth and each codebook restriction set of the set of codebook restriction sets, and transmit, to the base station, a report indicating one or more precoding matrix indicators from the codebook for each of the one or more frequency-domain subbands based on the mapping.

Inventors:
MANOLAKOS ALEXANDROS (US)
ZHANG YU (US)
ABOTABL AHMED ATTIA (US)
WANG RUNXIN (US)
ABDELGHAFFAR MUHAMMAD SAYED KHAIRY (US)
MUKKAVILLI KRISHNA KIRAN (US)
Application Number:
PCT/CN2020/083465
Publication Date:
October 14, 2021
Filing Date:
April 07, 2020
Export Citation:
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Assignee:
QUALCOMM INC (US)
MANOLAKOS ALEXANDROS (US)
ZHANG YU (CN)
ABOTABL AHMED ATTIA (US)
WANG RUNXIN (US)
ABDELGHAFFAR MUHAMMAD SAYED KHAIRY (US)
MUKKAVILLI KRISHNA KIRAN (US)
International Classes:
H04W76/10; H04W72/04
Domestic Patent References:
WO2016122396A22016-08-04
Foreign References:
EP3382903A12018-10-03
US20170141827A12017-05-18
Other References:
INTEL CORPORATION: "Codebook Based UL Subband Precoding", 3GPP DRAFT; R1-1702192 ON CODEBOOK BASED UL SUBBAND PRECODING, vol. RAN WG1, 7 February 2017 (2017-02-07), Athens, Greece, pages 1 - 3, XP051221100
See also references of EP 4133888A4
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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