Title:
DEMODULATION REFERENCE SIGNALING FOR SELECTIVE CHANNELS
Document Type and Number:
WIPO Patent Application WO/2021/253260
Kind Code:
A1
Abstract:
Methods, systems, and devices for wireless communications are described. A communication device, which may be a user equipment (UE), may receive a message including an indication of a set of demodulation reference signal (DMRS) candidates for a data channel. The data channel may be a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in some examples. The UE may determine a set of parameters associated with the set of DMRS candidates based on the received message. The set of parameters may correspond to a radio frequency spectrum subband or a radio frequency spectrum band associated with the data channel. The UE may estimate one or more characteristics of the data channel using the set of parameters associated with the set of DMRS candidates to perform wireless communication (e.g., PDSCH reception, PUSCH transmission).
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Inventors:
LI QIAOYU (US)
ZHANG YU (US)
WU LIANGMING (US)
HAO CHENXI (US)
XU HAO (US)
HUANG MIN (US)
WEI CHAO (US)
XI WEI (US)
ZHANG YU (US)
WU LIANGMING (US)
HAO CHENXI (US)
XU HAO (US)
HUANG MIN (US)
WEI CHAO (US)
XI WEI (US)
Application Number:
PCT/CN2020/096481
Publication Date:
December 23, 2021
Filing Date:
June 17, 2020
Export Citation:
Assignee:
QUALCOMM INC (US)
LI QIAOYU (CN)
ZHANG YU (CN)
WU LIANGMING (CN)
HAO CHENXI (CN)
XU HAO (CN)
HUANG MIN (CN)
WEI CHAO (CN)
XI WEI (CN)
LI QIAOYU (CN)
ZHANG YU (CN)
WU LIANGMING (CN)
HAO CHENXI (CN)
XU HAO (CN)
HUANG MIN (CN)
WEI CHAO (CN)
XI WEI (CN)
International Classes:
H04L5/00; H04W72/04
Foreign References:
| US20190159181A1 | 2019-05-23 | |||
| US20190349148A1 | 2019-11-14 | |||
| CN110121912A | 2019-08-13 |
Other References:
QUALCOMM: "Summary of Issues for PDSCH/PUSCH’s DM-RS", 3GPP DRAFT; R1-1803323, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Athens, Greece; 20180226 - 20180302, 27 February 2018 (2018-02-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051398475
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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