US 12,457,599 B2
Mechanism for SSB transmission in NR-U
Yifan Li, Conshohocken, PA (US); Lakshmi R. Iyer, King of Prussia, PA (US); Allan Y. Tsai, Boonton, NJ (US); Qing Li, Princeton Junction, NJ (US); Mohamed Awadin, San Diego, CA (US); Joseph M. Murray, Schwenksville, PA (US); and Guodong Zhang, Woodbury, NY (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Jun. 14, 2024, as Appl. No. 18/744,206.
Application 18/744,206 is a continuation of application No. 17/051,297, granted, now 12,052,704, previously published as PCT/US2019/031545, filed on May 9, 2019.
Claims priority of provisional application 62/669,613, filed on May 10, 2018.
Prior Publication US 2024/0334419 A1, Oct. 3, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/12 (2023.01); H04L 5/00 (2006.01); H04L 41/0806 (2022.01); H04W 56/00 (2009.01); H04W 72/30 (2023.01); H04W 74/08 (2024.01)
CPC H04W 72/12 (2013.01) [H04L 5/0048 (2013.01); H04L 41/0806 (2013.01); H04W 56/001 (2013.01); H04W 72/30 (2023.01); H04W 74/08 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A wireless transmit/receive unit (WTRU) comprising a processor and memory, the processor and memory configured to:
receive at least a first synchronous signal and physical broadcast channel (SSB) transmission comprised in a first SSB burst while in an radio resource control (RRC) idle state, wherein the first SSB transmission comprised in the first SSB burst is received during a first SSB transmission timing configuration (STTC) duration, wherein a length of the first STTC duration is determined to be predefined length of 5 ms on condition that an explicitly signaled STTC duration is not received from a network node via RRC signaling;
receive at least a second SSB transmission comprised in a second SSB burst while in an RRC connected state, wherein the second SSB transmission comprised in the second SSB burst is received during a second SSB transmission timing configuration (STTC) duration, wherein a length of the second STTC duration is determined based on the explicitly signaled duration received in a RRC message;
receiving a physical broadcast channel (PBCH) demodulation reference signal (DMRS) and a PBCH payload comprised in at least one SSB transmission; and
determining a position of the at least one SSB transmission within the SSB burst based on the PBCH payload and an initialization sequence of the PBCH DMRS.