US 12,439,448 B2
Method and apparatus for multi-user concurrent random access for wireless local area networks (WLANS)
Hanqing Lou, Syosset, NY (US); Guodong Zhang, Woodbury, NY (US); Li-Hsiang Sun, San Diego, CA (US); Oghenekome Oteri, San Diego, CA (US); Robert L Olesen, Huntington, NY (US); Fengjun Xi, San Diego, CA (US); Rui Yang, Greenlawn, NY (US); and Xiaofei Wang, North Caldwell, NJ (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Filed on Sep. 8, 2023, as Appl. No. 18/244,091.
Application 18/244,091 is a continuation of application No. 17/550,789, filed on Dec. 14, 2021, granted, now 11,792,846.
Application 17/550,789 is a continuation of application No. 16/592,283, filed on Oct. 3, 2019, granted, now 11,234,267, issued on Jan. 25, 2022.
Application 16/592,283 is a continuation of application No. 15/754,847, granted, now 10,477,576, issued on Nov. 12, 2019, previously published as PCT/US2016/050627, filed on Sep. 8, 2016.
Claims priority of provisional application 62/278,774, filed on Jan. 14, 2016.
Claims priority of provisional application 62/242,484, filed on Oct. 16, 2015.
Claims priority of provisional application 62/217,564, filed on Sep. 11, 2015.
Prior Publication US 2023/0422297 A1, Dec. 28, 2023
Int. Cl. H04W 74/08 (2024.01); H04L 27/26 (2006.01); H04W 72/121 (2023.01); H04W 84/12 (2009.01)
CPC H04W 74/08 (2013.01) [H04W 72/121 (2013.01); H04L 27/26 (2013.01); H04W 84/12 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A station (STA) comprising:
a transceiver; and
a processor,
wherein the transceiver and the processor are configured to receive a trigger frame for an uplink (UL) transmission,
wherein the trigger frame includes an indication of an integer number, M, of resource units (RUs) for random access in an upcoming UL high efficiency (HE) trigger based (TB) packet data convergence protocol (PDCP) protocol data unit (PPDU) and an indication that the trigger frame is a poll for a buffer status report of the STA,
wherein the transceiver and the processor are further configured to:
generate a random backoff index, R, from a range of integer values between zero and a defined maximum value, and
select an RU of the indicated RUs based on R being less than or equal to M, and
transmit a buffer status of the STA using the selected RU.