US 12,150,151 B2
Methods and apparatus for PDSCH TCI states activation-deactivation in multi-TRP
Mostafa Khoshnevisan, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); and Jing Sun, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Feb. 10, 2020, as Appl. No. 16/786,806.
Claims priority of provisional application 62/806,625, filed on Feb. 15, 2019.
Prior Publication US 2020/0267734 A1, Aug. 20, 2020
Int. Cl. H04W 72/53 (2023.01); H04W 72/23 (2023.01); H04W 76/11 (2018.01); H04W 80/02 (2009.01)
CPC H04W 72/53 (2023.01) [H04W 72/23 (2023.01); H04W 76/11 (2018.02); H04W 80/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of wireless communication by a user equipment (UE), comprising:
receiving a Media-Access-Control Control-Element (MAC CE) listing a set of activated Transmission Configuration Indicator Identifiers (TCI IDs) associated with a first set of TCI states and omitting a set of deactivated TCI IDs associated with a second set of Transmission Configuration Indicator (TCI) state, and an indicator associated with an activated TCI ID, wherein:
the set of activated TCI IDs are indicated explicitly without using a bit map;
the set of activated TCI IDs are assigned to a plurality of codepoints which indicates values of the first set of TCI states in downlink control information (DCI);
the set of activated TCI IDs are ordered to indicate mapping between the set of activated TCI IDs and the plurality of codepoints without the MAC CE indicating the plurality of codepoints;
a first value of the indicator indicates that the activated TCI ID is associated with a corresponding codepoint and a second value of the indicator indicates that the activated TCI ID and a subsequent TCI ID are both associated with the corresponding codepoint; and
a third activated TCI ID and a fourth activated TCI ID are associated with a second codepoint;
receiving the DCI; and
receiving downlink data channel based on at least one or more TCI states of the first set of TCI states assigned to a codepoint of the plurality of codepoints associated with the DCI.