US 12,219,545 B2
Multi-TRP beam indication using TCI state
Yushu Zhang, Beijing (CN); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Saratoga, CA (US); Hong He, San Jose, CA (US); Huaning Niu, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Wei Zeng, Saratoga, CA (US); and Weidong Yang, San Diego, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 26, 2023, as Appl. No. 18/474,692.
Application 18/474,692 is a continuation of application No. 17/754,575, previously published as PCT/CN2021/085605, filed on Apr. 6, 2021.
Prior Publication US 2024/0064725 A1, Feb. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/044 (2023.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04W 72/232 (2023.01)
CPC H04W 72/046 (2013.01) [H04B 7/0695 (2013.01); H04L 5/0035 (2013.01); H04L 5/0048 (2013.01); H04L 5/0053 (2013.01); H04W 72/232 (2023.01)] 12 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a transceiver configured to communicate with a network; and
a processor communicatively coupled to the transceiver and configured to perform operations comprising:
receiving, from a base station of the network, at least one medium access control (MAC) control element (CE) that indicates multiple activated transmission configuration indicator (TCI) states;
receiving, from the base station, at least one downlink control information (DCI) indicating a subset of TCI states of the multiple activated TCI states, wherein the MAC CE and the DCI are part of a TCI configuration, and wherein the subset of TCI states corresponds to multiple transmission and reception points (TRPs) of a wireless network, wherein the at least one MAC CE is a single MAC CE and each of the multiple activated TCI states includes two TCI states, wherein the two TCI states are both one of downlink (DL) TCI states, uplink (UL) TCI states, or joint DL and UL TCI states, and wherein the at least one DCI transmission is a single DCI transmission having a TCI codepoint that indicates one of the multiple activated TCI states;
mapping the subset of TCI states to the corresponding multiple TRPs based on the TCI configuration; and
selecting a beam used for transmission or reception based on one mapped TCI state of the mapped subset of TCI states.