US 12,284,016 B2
Transmission configuration indication (TCI) state and beam switching
Manasa Raghavan, Sunnyvale, CA (US); Jie Cui, San Jose, CA (US); Yushu Zhang, Beijing (CN); Andrey Chervyakov, Nizhny Novgorod (RU); and Yang Tang, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 27, 2023, as Appl. No. 18/475,468.
Application 18/475,468 is a continuation of application No. 17/599,930, granted, now 11,894,903, previously published as PCT/US2020/025836, filed on Mar. 30, 2020.
Claims priority of provisional application 62/826,851, filed on Mar. 29, 2019.
Prior Publication US 2024/0022305 A1, Jan. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/00 (2006.01); H04B 7/06 (2006.01)
CPC H04B 7/063 (2013.01) 20 Claims
OG exemplary drawing
 
1. A base station comprising:
radio front end circuitry; and
processor circuitry, coupled to the radio front end circuitry, configured to:
generate a first message including a Transmission Configuration Indication (TCI) state change command;
transmit the first message to a user equipment (UE); and
receive a second message indicating a time delay for the UE to be prepared to receive a reference signal associated with a new TCI state, wherein the time delay depends on whether a time offset/frequency offset (TO/FO) and a reception (Rx) beam for the new TCI state are known by the UE.