US 12,255,850 B2
Basic service set (BSS) management in a wireless local area network (WLAN)
Oghenekome Oteri, San Diego, CA (US); Yuan Sheng Jin, Sunnyvale, CA (US); Hanqing Lou, Syosset, NY (US); Xiaofei Wang, Cedar Grove, NJ (US); and Robert L. Olesen, Huntington, NY (US)
Assigned to INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Appl. No. 15/542,140
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
PCT Filed Jan. 8, 2016, PCT No. PCT/US2016/012674
§ 371(c)(1), (2) Date Jul. 7, 2017,
PCT Pub. No. WO2016/112306, PCT Pub. Date Jul. 14, 2016.
Claims priority of provisional application 62/101,645, filed on Jan. 9, 2015.
Prior Publication US 2018/0270038 A1, Sep. 20, 2018
Int. Cl. H04L 5/00 (2006.01); H04W 24/02 (2009.01); H04W 72/12 (2023.01); H04W 72/541 (2023.01); H04W 84/12 (2009.01); H04W 88/06 (2009.01)
CPC H04L 5/0073 (2013.01) [H04L 5/0037 (2013.01); H04L 5/0044 (2013.01); H04L 5/0094 (2013.01); H04W 24/02 (2013.01); H04W 72/1215 (2013.01); H04W 72/541 (2023.01); H04W 88/06 (2013.01); H04L 5/0007 (2013.01); H04W 84/12 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A station (STA) comprising:
a processor; and
a transceiver,
the processor and the transceiver configured to:
receive, from an access point (AP) that the STA is associated with, an indication of a first basic service set (BSS) color associated with the AP;
receive, from the AP that the STA is associated with, a request frame that the STA gather BSS color information of a plurality of overlapping BSSs (OBSSs);
receive, from one or more of a plurality of APs associated with the plurality of OBSSs, a beacon that includes a SIG field in a physical (PHY) layer preamble indicating a respective BSS color;
transmit, in response to the request frame, one or more HE operation elements that include gathered BSS color information of the plurality of OBSSs, wherein the gathered BSS color information includes a BSS color of each of the plurality of OBSSs;
receive, from the AP in the BSS that the STA is associated with, a BSS color change announcement element that includes a BSS color information field and a color switching time field, wherein the BSS color information field indicates a second BSS color determined based on the first BSS color of the AP and the transmitted BSS color information of the plurality of OBSSs, and the color switching time field indicates when the AP will switch to the second BSS color; and
use the second BSS color in a SIG field of a PHY layer preamble of packets communicated to the AP after the AP switches to the second BSS color.