	US 12,328,767 B2
	Method and apparatus for PRACH repetitions
Hongmei Liu, Changping District (CN); Zhi Yan, Xicheng District (CN); Yingying Li, Haidian District (CN); Yuantao Zhang, Dongcheng District (CN); and Haipeng Lei, Haidian District (CN)
Assigned to Lenovo (Beijing) Ltd., Beijing (CN)
Appl. No. 17/774,623
Filed by Lenovo (Beijing) Ltd., Beijing (CN)
PCT Filed Nov. 8, 2019, PCT No. PCT/CN2019/116694 § 371(c)(1), (2) Date May 5, 2022, PCT Pub. No. WO2021/087978, PCT Pub. Date May 14, 2021.
Prior Publication US 2022/0408491 A1, Dec. 22, 2022
Int. Cl. H04W 74/0833 (2024.01); H04L 5/00 (2006.01); H04W 74/00 (2009.01)

CPC H04W 74/0833 (2013.01) [H04L 5/0048 (2013.01)]

20 Claims

1. A method performed by a user equipment (UE), the method comprising:

receiving signaling indicating a synchronization signal block (SSB) group size, wherein a plurality of SSBs are divided into one or more SSB groups based at least in part on the SSB group size;

mapping, based at least in part on an order, indices of the plurality of SSBs to a plurality of physical random access channel (PRACH) occasions for a number of PRACH repetitions, wherein the order comprises:

first, in increasing order of SSB indices within an SSB group;

then, in increasing order of PRACH repetition indices; and

then, in increasing order of SSB group indices; and

determining a set of PRACH occasions corresponding to an index of the indices of the plurality of SSBs from the plurality of PRACH occasions based at least in part on the mapping.