Title:
BEAM CONFIGURATION INDICATION FOR A DOWNLINK SHARED CHANNEL
Document Type and Number:
WIPO Patent Application WO/2021/189395
Kind Code:
A1
Abstract:
Methods, systems, and devices for wireless communications are described to indicate a single frequency network (SFN) mode and associated composite channel reference signals to a user equipment (UE). A UE and a base station may communicate via two or more transmission and reception points (TRPs) using an SFN transmission, which may represent a transmission having multiple beam configurations. The SFN mode may be explicitly or implicitly indicated in a configuration, a control signaling, or a control message. The base station may transmit an indication of activated beam configurations for the shared channel and for tracking reference signals corresponding to the shared channel. The UE may receive one or more reference signals from each TRP and, based on the SFN indication and the activated beam configurations, may use information from the one or more reference signals to receive transmissions associated with the control channel transmission.
Inventors:
WANG RUNXIN (US)
ABDELGHAFFAR MUHAMMAD SAYED KHAIRY (US)
ZHANG YU (US)
ABDELGHAFFAR MUHAMMAD SAYED KHAIRY (US)
ZHANG YU (US)
Application Number:
PCT/CN2020/081552
Publication Date:
September 30, 2021
Filing Date:
March 27, 2020
Export Citation:
Assignee:
QUALCOMM INC (US)
WANG RUNXIN (US)
ABDELGHAFFAR MUHAMMAD SAYED KHAIRY (US)
ZHANG YU (CN)
WANG RUNXIN (US)
ABDELGHAFFAR MUHAMMAD SAYED KHAIRY (US)
ZHANG YU (CN)
International Classes:
H04L5/00; H04B7/06
Foreign References:
| US20180041319A1 | 2018-02-08 | |||
| CN110352579A | 2019-10-18 | |||
| CN109076503A | 2018-12-21 | |||
| CN107852220A | 2018-03-27 | |||
| US20180241494A1 | 2018-08-23 |
Other References:
HUAWEI, HISILICON: "Remaining issues on reference signals and QCL", 3GPP DRAFT; R1-1808144 REMAINING ISSUES ON REFERENCE SIGNALS AND QCL_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Gothenburg, Sweden; 20180820 - 20180824, 10 August 2018 (2018-08-10), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051515546
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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