US 12,452,910 B2
User equipments, base stations, and methods
Meng Cheng, Sakai (JP); Shohei Yamada, Sakai (JP); Liqing Liu, Sakai (JP); and Hiroki Takahashi, Osaka (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 18/266,583
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Dec. 21, 2021, PCT No. PCT/JP2021/048449
§ 371(c)(1), (2) Date Jun. 9, 2023,
PCT Pub. No. WO2022/138978, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2020-216676 (JP), filed on Dec. 25, 2020.
Prior Publication US 2024/0049278 A1, Feb. 8, 2024
Int. Cl. H04W 74/00 (2009.01); H04L 5/00 (2006.01); H04W 74/0833 (2024.01); H04W 74/0836 (2024.01); H04W 74/0838 (2024.01)
CPC H04W 74/006 (2013.01) [H04L 5/0042 (2013.01); H04L 5/0051 (2013.01); H04W 74/0833 (2013.01); H04W 74/0836 (2024.01); H04W 74/0838 (2024.01)] 7 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
reception circuitry configured to receive, from a base station, system information including physical random access channel (PRACH) configuration information, wherein
the PRACH configuration information includes a list of preamble index ranges, where each preamble index range is associated with a synchronization signal block (SSB), wherein
each preamble index range comprises one or a plurality of sub-ranges; and
control circuitry configured to select, based on one or a plurality of reference signal received power (RSRP) values of a set of SSBs and a first RSRP threshold configured by a radio resource control (RRC) layer, an SSB from the set of SSBs; and to select, based on the RSRP value associated with the selected SSB and one or more second RSRP thresholds configured by the RRC layer, a sub-range from the one or a plurality of sub-ranges associated with the selected SSB; and to select a preamble index from the selected sub-range.