US 12,245,270 B2
Initial access and channel access in new radio/new radio-unlicensed (NR/NR-U)
Kyle Jung-Lin Pan, Saint James, NY (US); Fengjun Xi, San Diego, CA (US); and Chunxuan Ye, San Diego, CA (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Oct. 25, 2023, as Appl. No. 18/494,118.
Application 18/494,118 is a continuation of application No. 17/845,617, filed on Jun. 21, 2022, granted, now 11,844,105.
Application 17/845,617 is a continuation of application No. 16/767,322, granted, now 11,405,950, issued on Aug. 2, 2022, previously published as PCT/US2018/062544, filed on Nov. 27, 2018.
Claims priority of provisional application 62/630,692, filed on Feb. 14, 2018.
Claims priority of provisional application 62/590,936, filed on Nov. 27, 2017.
Prior Publication US 2024/0057149 A1, Feb. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/00 (2009.01); H04W 56/00 (2009.01); H04W 72/30 (2023.01); H04W 74/0833 (2024.01)
CPC H04W 74/002 (2013.01) [H04W 56/001 (2013.01); H04W 72/30 (2023.01); H04W 74/0833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented by a wireless transmit receive unit (WTRU), the method comprising:
receiving configuration information, the configuration information indicating that a plurality of physical random access channel (PRACH) preambles are divided into a plurality of PRACH preamble subsets, wherein each PRACH preamble subset is associated with a respective synchronization signal (SS) block index, and preamble indexes of the plurality of PRACH preambles are used to consecutively map each of the plurality of PRACH preambles into one of the respective PRACH preamble subsets; and
transmitting a first PRACH preamble in a random access channel (RACH) occasion, wherein the first PRACH preamble is indicative of the WTRU selecting the first SS block index associated with the RACH occasion.