US 12,245,290 B2
Random access channel (RACH) response (RAR) reception in an unlicensed radio frequency (RF) spectrum band
Ozcan Ozturk, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Tao Luo, San Diego, CA (US); and Jing Sun, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 11, 2023, as Appl. No. 18/244,439.
Application 18/244,439 is a continuation of application No. 17/410,757, filed on Aug. 24, 2021, granted, now 11,910,444.
Application 17/410,757 is a continuation of application No. 16/777,657, filed on Jan. 30, 2020, granted, now 11,109,420, issued on Aug. 31, 2021.
Claims priority of provisional application 62/802,841, filed on Feb. 8, 2019.
Prior Publication US 2024/0073955 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/413 (2006.01); H04L 27/26 (2006.01); H04W 16/14 (2009.01); H04W 72/23 (2023.01); H04W 74/00 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) [H04L 12/413 (2013.01); H04L 27/2692 (2013.01); H04W 16/14 (2013.01); H04W 72/23 (2023.01); H04W 74/00 (2013.01)] 42 Claims
OG exemplary drawing
 
1. An apparatus for wireless communications, comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the apparatus to:
output a random access preamble for transmission in a first physical random access channel (PRACH) occasion; and
obtain a first portion of a random access response (RAR) message within a RAR window, the first portion of the RAR message comprising a timing information indicator, wherein the timing information indicator comprises a last portion of a system frame number (SFN) corresponding to the first PRACH occasion.