US 11,792,846 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 Dec. 14, 2021, as Appl. No. 17/550,789.
Application 17/550,789 is a continuation of application No. 16/592,283, filed on Oct. 3, 2019, granted, now 11,234,267.
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 2022/0110154 A1, Apr. 7, 2022
Int. Cl. H04W 74/08 (2009.01); H04W 72/121 (2023.01); H04L 27/26 (2006.01); 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)] 20 Claims
OG exemplary drawing
 
8. A method, implemented in a station (STA), the method comprising:
the STA detecting a trigger frame for an uplink (UL) multi-user (MU) transmission;
the STA transmitting a Medium Access Control (MAC) Protocol Data Unit (MPDU) in the UL MU transmission a short interframe space (SIFS) after the detected trigger frame; and
the STA detecting an aggregated-MPDU (A-MPDU) a SIFS after the UL MU transmission, the A-MPDU comprising at least one other trigger frame and an acknowledgement (ACK) frame for the MPDU transmitted in the UL MU transmission.