US 12,089,195 B2
Method and apparatus for uplink reference signal-based beam management
Emad N. Farag, Flanders, NJ (US); Eko Onggosanusi, Coppell, TX (US); Md. Saifur Rahman, Plano, TX (US); and Aris Papasakellariou, Houston, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Mar. 26, 2021, as Appl. No. 17/301,155.
Claims priority of provisional application 63/142,808, filed on Jan. 28, 2021.
Claims priority of provisional application 63/010,204, filed on Apr. 15, 2020.
Claims priority of provisional application 63/005,786, filed on Apr. 6, 2020.
Prior Publication US 2021/0314931 A1, Oct. 7, 2021
Int. Cl. H04W 72/044 (2023.01); H04L 5/00 (2006.01); H04W 24/10 (2009.01)
CPC H04W 72/046 (2013.01) [H04L 5/0048 (2013.01); H04W 24/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A user equipment (UE) comprising:
a transceiver configured to receive:
configuration information for: (i) uplink (UL) reference signals for beam management, (ii) source reference signals for spatial relation, and (iii) a beam report, and
the source reference signals; and
a processor operably connected to the transceiver, the processor configured to measure a signal quality metric for the source reference signals,
wherein the transceiver is further configured to:
transmit the beam report based on the measured signal quality metric, and
receive, in response to the beam report, updated configuration information for the UL reference signals for beam management,
wherein the processor is further configured to:
determine a time for update of the UL reference signals for beam management, and
determine an UL spatial domain filter for an UL transmission based on:
(i) a transmission configuration indication (TCI) state indicated to the UE, and
(ii) an UL reference signal resource indicator for an UL reference signal within a group of UL reference signals for beam management,
wherein the TCI state indicates a source reference signal from the source reference signals,
wherein the source reference signal indicates the group of UL reference signals for beam management having a same source reference signal for spatial relation, and
wherein the transceiver is further configured to transmit the UL reference signals for beam management based on the updated configuration information using the UL spatial domain filter at the determined time.