US 12,395,216 B2
Method and apparatus for beam management after channel setup
Emad N. Farag, Flanders, NJ (US); Eko Onggosanusi, Coppell, TX (US); Aristides Papasakellariou, Houston, TX (US); Md. Saifur Rahman, Plano, TX (US); and Dalin Zhu, Allen, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 10, 2023, as Appl. No. 18/298,246.
Application 18/298,246 is a continuation of application No. 17/643,153, filed on Dec. 7, 2021, granted, now 11,626,913.
Claims priority of provisional application 63/126,901, filed on Dec. 17, 2020.
Prior Publication US 2023/0246684 A1, Aug. 3, 2023
Int. Cl. H04B 7/06 (2006.01); H04W 72/23 (2023.01)
CPC H04B 7/0617 (2013.01) [H04B 7/0626 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE), the method comprising:
receiving, from a base station via a radio resource control (RRC) signaling, information on a first set of joint transmission configuration indication (TCI) states for downlink and uplink;
when a number of the joint TCI states in the first set is one, transmitting, to the base station, first uplink transmissions using a first spatial filter, wherein the first spatial filter is identified based on the one joint TCI state in the first set; and
when the number of the joint TCI states in the first set is more than one, transmitting, to the base station, before applying an indicated TCI state from the first set indicated by the base station, the first uplink transmissions using a second spatial filter, wherein the second spatial filter is a same spatial filter for a last uplink transmission during a first random access procedure for initial access,
wherein the first uplink transmissions include a physical uplink shared channel (PUSCH) transmission and a physical uplink control channel (PUCCH) transmission.