US 12,114,367 B2
Random access procedure for unlicensed cells
Michael Einhaus, Darmstadt (DE); Joachim Loehr, Hessen (DE); Hidetoshi Suzuki, Kanagawa (JP); and Li Wang, Beijing (CN)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on May 16, 2023, as Appl. No. 18/318,582.
Application 18/318,582 is a continuation of application No. 17/217,652, filed on Mar. 30, 2021, granted, now 11,696,334.
Application 17/217,652 is a continuation of application No. 16/451,549, filed on Jun. 25, 2019, granted, now 10,993,268, issued on Apr. 27, 2021.
Application 16/451,549 is a continuation of application No. 15/755,048, granted, now 10,375,739, issued on Aug. 6, 2019, previously published as PCT/CN2015/088173, filed on Aug. 26, 2015.
Prior Publication US 2023/0292374 A1, Sep. 14, 2023
Int. Cl. H04W 74/0833 (2024.01); H04J 13/00 (2011.01); H04L 5/00 (2006.01); H04L 27/00 (2006.01); H04W 16/14 (2009.01); H04W 52/00 (2009.01); H04W 52/02 (2009.01); H04W 72/02 (2009.01); H04W 72/0453 (2023.01); H04W 72/21 (2023.01); H04W 74/00 (2009.01)
CPC H04W 74/0833 (2013.01) [H04J 13/00 (2013.01); H04L 5/00 (2013.01); H04L 5/0064 (2013.01); H04L 5/0082 (2013.01); H04L 27/0006 (2013.01); H04W 52/00 (2013.01); H04W 52/0216 (2013.01); H04W 52/0219 (2013.01); H04W 72/02 (2013.01); H04W 72/0453 (2013.01); H04W 72/21 (2023.01); H04W 74/008 (2013.01); H04L 5/0007 (2013.01); H04L 5/001 (2013.01); H04L 5/0053 (2013.01); H04W 16/14 (2013.01)] 12 Claims
OG exemplary drawing
 
7. A random access method, comprising:
selecting a random access preamble sequence; and
transmitting the selected random access preamble sequence to a base station in a bandwidth of an unlicensed band,
wherein the bandwidth is defined based on a length of the random access preamble sequence and a subcarrier spacing, and is larger than a bandwidth of a random preamble sequence used in a licensed band, and is equal to or larger than a minimum bandwidth required for the unlicensed band.