US 12,267,697 B2
QCL configuration and DCI indication for unified framework
Yushu Zhang, Beijing (CN); Chunxuan Ye, Cuertino, CA (US); Dawei Zhang, Cupertino, CA (US); Haitong Sun, Cupertino, CA (US); Hong He, Cupertino, CA (US); Huaning Niu, Cupertino, CA (US); Wei Zeng, Cupertino, CA (US); and Weidong Yang, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/598,078
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Jan. 15, 2021, PCT No. PCT/CN2021/072060
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2022/151324, PCT Pub. Date Jul. 21, 2022.
Prior Publication US 2023/0344607 A1, Oct. 26, 2023
Int. Cl. H04W 24/02 (2009.01); H04W 72/23 (2023.01); H04L 5/00 (2006.01)
CPC H04W 24/02 (2013.01) [H04W 72/23 (2023.01); H04L 5/001 (2013.01); H04L 5/0053 (2013.01); H04L 5/0091 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A baseband processor of a user equipment (UE) configured to perform operations comprising:
receiving configuration of a transmission configuration indication (TCI) state that is applicable for a plurality of communication channels within a band, the received TCI state configuring a quasi co-location (QCL) typeA and a QCL typeD with a tracking reference signal (TRS) as a source reference signal (SRS) for the QCL typeA and the QCL typeD;
receiving a downlink control information (DCI) that indicates to activate the TCI state that is applicable for the plurality of communication channels within the band, wherein a first media access control control element (MAC CE) is received that activates a first set of TCI state, a second MAC CE is received that activates a second set of TCI states, and in response to an action time of the DCI occurring after the second MAC CE becomes active, the UE selects the TCI state that is indicated in the DCI from the second set of TCI states, and in response to the action time of the DCI not occurring after the second MAC CE becomes active, the UE selects the TCI state from the first set of TCI states;
determining channel properties of one or more of the communication channels based on QCL type indicators of the TCI state; and
decoding a message of the one or more communication channels based on the channel properties.