US 12,245,241 B2
Random access channel (RACH)-less procedure
Peng Cheng, Beijing (CN); Ozcan Ozturk, San Diego, CA (US); Karthika Paladugu, San Diego, CA (US); Huichun Liu, Beijing (CN); Gavin Bernard Horn, La Jolla, CA (US); Masato Kitazoe, Tokyo (JP); Linhai He, San Diego, CA (US); and Punyaslok Purkayastha, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/309,292
Filed by QUALCOMM Incorporated, San Diego, CA (US); Peng Cheng, Beijing (CN); Ozcan Ozturk, San Diego, CA (US); Karthika Paladugu, San Diego, CA (US); Huichun Liu, Beijing (CN); Gavin Bernard Horn, La Jolla, CA (US); Masato Kitazoe, Tokyo (JP); Linhai He, San Diego, CA (US); and Punyaslok Purkayastha, San Diego, CA (US)
PCT Filed Oct. 31, 2019, PCT No. PCT/CN2019/114620
§ 371(c)(1), (2) Date May 17, 2021,
PCT Pub. No. WO2020/103664, PCT Pub. Date May 28, 2020.
Claims priority of application No. PCT/CN2018/116437 (WO), filed on Nov. 20, 2018.
Prior Publication US 2022/0015131 A1, Jan. 13, 2022
Int. Cl. H04W 72/23 (2023.01); H04L 5/00 (2006.01); H04W 36/00 (2009.01); H04W 72/1268 (2023.01); H04W 74/04 (2009.01); H04L 1/1812 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 5/0055 (2013.01); H04W 36/00725 (2023.05); H04W 72/1268 (2013.01); H04W 74/04 (2013.01); H04L 1/1812 (2013.01); H04L 5/0048 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a base station (BS), comprising:
determining to transmit a pre-allocated uplink (UL) grant to a user equipment (UE), wherein the pre-allocated UL grant includes:
a secondary node (SN) transmission configuration indicator (TCI) list, and a type 1 configured grant (CG);
transmitting, to the UE, the pre-allocated UL grant based at least in part on determining to transmit the pre-allocated UL grant; and
releasing the pre-allocated UL grant based on a failure of a random access channel (RACH)-less procedure,
wherein the failure of the RACH-less procedure is based at least in part on at least one of:
expiration of a timer associated with the RACH-less procedure, or
a timing difference, between a source cell associated with the BS and a target cell associated with another BS, that satisfies a threshold,
wherein the timer can be configured to a period no more than that of a T304 timer.