US 12,225,592 B2
Mapping one preamble to multiple physical uplink shared channel resource units for two-step random access procedure
Jing Lei, San Diego, CA (US); Seyong Park, San Diego, CA (US); Yiqing Cao, Beijing (CN); Peter Gaal, San Diego, CA (US); and Wanshi Chen, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/594,704
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed May 7, 2020, PCT No. PCT/CN2020/088941
§ 371(c)(1), (2) Date Oct. 26, 2021,
PCT Pub. No. WO2020/238574, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. PCT/CN2019/089292 (WO), filed on May 30, 2019.
Prior Publication US 2022/0210842 A1, Jun. 30, 2022
Int. Cl. H04W 56/00 (2009.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04W 72/0446 (2023.01); H04W 74/00 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/0841 (2013.01) [H04L 1/0003 (2013.01); H04L 5/0012 (2013.01); H04W 72/0446 (2013.01); H04W 74/004 (2013.01)] 57 Claims
OG exemplary drawing
 
1. A method of wireless communication at a user equipment (UE), comprising:
receiving, from a base station, random access configuration information;
determining a preamble for a random access message from a preamble group for a random access occasion (RO), wherein the random access message comprises a MsgA of a 2-step random access procedure;
determining one or more physical uplink shared channel resource unit (PRU) resource sets for the random access message based on the preamble and a mapping based on the random access configuration information, wherein the random access configuration information maps the preamble in the preamble group to a first PRU at a first frequency and a second PRU at a second frequency based on a frequency hop for the MsgA; and
transmitting, to the base station, the random access message including the preamble and a payload, wherein the payload is transmitted using one or more PRU groups of the one or more PRU resource sets based on the mapping.