US 11,812,477 B2
Methods and apparatus for random access with contention resolution message repetition
Jung Hyun Bae, San Diego, CA (US); Mohammed Karmoose, San Diego, CA (US); and Yaser Mohamed Mostafa Kamal Fouad, San Diego, CA (US)
Assigned to SAMSUNG ELECTRONICS CO., LTD.
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 16, 2021, as Appl. No. 17/233,435.
Claims priority of provisional application 63/134,580, filed on Jan. 6, 2021.
Claims priority of provisional application 63/021,078, filed on May 6, 2020.
Prior Publication US 2021/0352735 A1, Nov. 11, 2021
Int. Cl. H04W 74/08 (2009.01); H04L 1/1867 (2023.01); H04W 8/24 (2009.01); H04W 72/1268 (2023.01)
CPC H04W 74/0841 (2013.01) [H04L 1/189 (2013.01); H04W 8/24 (2013.01); H04W 72/1268 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A method comprising:
configuring a user equipment (UE) with a list of resources;
receiving, by the UE, an indication from a base station in a wireless communication network, wherein the indication allows the UE to select one or more resources from the list of resources to carry out an initial transmission of a contention resolution message and a re-transmission containing a non-zero repetition of the contention resolution message for a random access procedure in the wireless communication network;
scheduling, by the UE, the initial transmission and the re-transmission of the contention resolution message based on the indication, wherein the scheduling is performed by the UE independent of one or more corresponding downlink grants from the base station for uplink resources; and
successively sending the contention resolution message and the non-zero repetition of the contention resolution message from the UE through a physical uplink channel in the wireless communication network prior to reception of a downlink message by the UE confirming successful decoding of the contention resolution message, wherein one of the following applies;
the sending of the repetition of the contention resolution message is scheduled dynamically, and
the sending of the repetition of the contention resolution message is scheduled semi-statically.