Title:
RESOURCE GROUPING INFORMATION INDICATION FOR TIME-DOMAIN CHANNEL REPORTING AND RESOURCE SELECTION
Document Type and Number:
WIPO Patent Application WO/2023/184326
Kind Code:
A1
Abstract:
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit a sounding reference signal (SRS) in multiple slots. A network entity may determine precoding weights in three domains based on the SRS and output reference signals that are precoded based on the precoding weights. The network entity may output control signaling that indicates reference signal resource grouping information that the UE is to use for channel estimations. The reference signal resource grouping information may specify whether the ports in one group are precoded with identical or different spatial, frequency, and time domain weights. A UE may receive the precoded reference signals and the grouping information and report estimated channel metrics and an indication of selected ports per group to the network entity. The network entity may determine precoding in three domains for subsequent downlink communications.
Inventors:
HUANG MIN (US)
DAI JING (US)
WU LIANGMING (US)
XI WEI (US)
WEI CHAO (US)
XU HAO (US)
DAI JING (US)
WU LIANGMING (US)
XI WEI (US)
WEI CHAO (US)
XU HAO (US)
Application Number:
PCT/CN2022/084373
Publication Date:
October 05, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
QUALCOMM INC (US)
HUANG MIN (CN)
DAI JING (CN)
WU LIANGMING (CN)
XI WEI (CN)
WEI CHAO (CN)
XU HAO (CN)
HUANG MIN (CN)
DAI JING (CN)
WU LIANGMING (CN)
XI WEI (CN)
WEI CHAO (CN)
XU HAO (CN)
International Classes:
H04W72/04; H04L5/00
Domestic Patent References:
| WO2021223211A1 | 2021-11-11 |
Foreign References:
| US20210320694A1 | 2021-10-14 | |||
| CN111342913A | 2020-06-26 | |||
| CN111342873A | 2020-06-26 | |||
| CN105659508A | 2016-06-08 |
Other References:
CATT: "CSI enhancements for MTRP and FR1 FDD with partial reciprocity", 3GPP DRAFT; R1-2007830, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20201026 - 20201113, 24 October 2020 (2020-10-24), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051946511
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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