US 12,069,731 B2
Systems, methods, and devices for beam management for random access
Liang Hu, San Diego, CA (US); Jung Hyun Bae, San Diego, CA (US); Mohammed Karmoose, San Diego, CA (US); and Philippe Sartori, Naperville, IL (US)
Assigned to SAMSUNG ELECTRONICS CO., LTD., (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Aug. 19, 2021, as Appl. No. 17/407,177.
Claims priority of provisional application 63/093,150, filed on Oct. 16, 2020.
Claims priority of provisional application 63/076,574, filed on Sep. 10, 2020.
Prior Publication US 2022/0078848 A1, Mar. 10, 2022
Int. Cl. H04W 4/00 (2018.01); H04W 72/044 (2023.01); H04W 72/23 (2023.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) [H04W 72/046 (2013.01); H04W 72/23 (2023.01)] 16 Claims
OG exemplary drawing
 
1. A method for random access in a communication network, the method comprising:
receiving, at a user equipment (UE), beam-specific traffic information for a plurality of transmit beams, wherein the beam-specific traffic information includes at least one of the following:
beam-specific loading information indicating a level of congestion on a corresponding transmit beam, and
beam-specific priority information indicating a priority level of traffic carried over the corresponding transmit beam;
selecting, at the UE, a first transmit beam of the plurality of transmit beams and a second transmit beam of the plurality of transmit beams based on the beam-specific traffic information for the first and the second transmit beams;
transmitting, from the UE, a pattern of reference signals as part of a request message of a random access procedure, wherein the pattern of reference signals is transmitted using the first transmit beam and the second transmit beam; and
receiving, at the UE, a response message of the random access procedure, wherein the response message comprises an indication selecting the first transmit beam.