Title:
DEFAULT UPLINK MULTIPLE INPUT MULTIPLE OUTPUT TRANSMISSION PRIOR TO UPLINK TRANSMISSION CONFIGURATION INDICATION STATE ACTIVATION
Document Type and Number:
WIPO Patent Application WO/2021/174526
Kind Code:
A1
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, and a user equipment (UE) may receive, downlink control information (DCI) scheduling an uplink multiple input multiple output (MIMO) communication. The UE may transmit, and the base station may receive, the uplink MIMO communication using a default sounding reference signal (SRS) resource configuration based at least in part on the UE receiving the DCI prior to a medium access control (MAC) control element (MAC-CE) selecting a subset of uplink transmission configuration indication (TCI) states included in an uplink TCI state pool configured for the UE. Numerous other aspects are provided.
Inventors:
YUAN FANG (US)
ZHANG YU (US)
ZHOU YAN (US)
WEI CHAO (US)
LUO TAO (US)
XU HAO (US)
ZHANG YU (US)
ZHOU YAN (US)
WEI CHAO (US)
LUO TAO (US)
XU HAO (US)
Application Number:
PCT/CN2020/078182
Publication Date:
September 10, 2021
Filing Date:
March 06, 2020
Export Citation:
Assignee:
QUALCOMM INC (US)
YUAN FANG (CN)
ZHANG YU (CN)
ZHOU YAN (US)
WEI CHAO (CN)
LUO TAO (US)
XU HAO (CN)
YUAN FANG (CN)
ZHANG YU (CN)
ZHOU YAN (US)
WEI CHAO (CN)
LUO TAO (US)
XU HAO (CN)
International Classes:
H04L5/00
Foreign References:
| US20190141693A1 | 2019-05-09 | |||
| CN110663282A | 2020-01-07 | |||
| CN110535617A | 2019-12-03 |
Other References:
QUALCOMM INCORPORATED: "Enhanced TCI States Activation/Deactivation PDSCH MAC CE for Multi-TRP", 3GPP DRAFT; R2-1916066, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Reno, Nevada, US; 20191118 - 20191122, 8 November 2019 (2019-11-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051817616
INTEL CORPORATION: "Discussion on TCI State Switching Requirements", 3GPP DRAFT; R4-1902937 TCI STATE SWITCHING REQT, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Xi’an, China; 20190408 - 20190412, 1 April 2019 (2019-04-01), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051713432
"Feature lead summary#4 of Enhancements on Muli-beam Operations", 3GPP TSG RAN WG1 MEETING #99 R1-1913453
See also references of EP 4115550A4
INTEL CORPORATION: "Discussion on TCI State Switching Requirements", 3GPP DRAFT; R4-1902937 TCI STATE SWITCHING REQT, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Xi’an, China; 20190408 - 20190412, 1 April 2019 (2019-04-01), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051713432
"Feature lead summary#4 of Enhancements on Muli-beam Operations", 3GPP TSG RAN WG1 MEETING #99 R1-1913453
See also references of EP 4115550A4
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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