US 12,439,447 B2
Method and apparatus for supporting wideband and multiple bandwidth transmission protocols
Bhaskar M. Anepu, Allentown, PA (US); Sudheer A. Grandhi, Pleasanton, CA (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 Apr. 15, 2025, as Appl. No. 19/179,547.
Application 19/179,547 is a continuation of application No. 18/479,602, filed on Oct. 2, 2023, granted, now 12,302,382.
Application 18/479,602 is a continuation of application No. 17/176,737, filed on Feb. 16, 2021, granted, now 11,778,660.
Application 17/176,737 is a continuation of application No. 16/449,898, filed on Jun. 24, 2019, granted, now 10,925,088.
Application 16/449,898 is a continuation of application No. 15/827,957, filed on Nov. 30, 2017, granted, now 10,334,626.
Application 15/827,957 is a continuation of application No. 15/180,231, filed on Jun. 13, 2016, granted, now 9,844,075.
Application 15/180,231 is a continuation of application No. 13/529,651, filed on Jun. 21, 2012, granted, now 9,369,918.
Claims priority of provisional application 61/642,048, filed on May 3, 2012.
Claims priority of provisional application 61/607,352, filed on Mar. 6, 2012.
Claims priority of provisional application 61/508,524, filed on Jul. 15, 2011.
Claims priority of provisional application 61/500,788, filed on Jun. 24, 2011.
Prior Publication US 2025/0247881 A1, Jul. 31, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/04 (2009.01); H04W 28/06 (2009.01); H04W 28/26 (2009.01); H04W 74/00 (2009.01); H04W 74/06 (2009.01); H04W 74/0808 (2024.01); H04W 74/0816 (2024.01); H04W 76/11 (2018.01); H04W 88/08 (2009.01)
CPC H04W 74/04 (2013.01) [H04W 28/06 (2013.01); H04W 28/26 (2013.01); H04W 74/06 (2013.01); H04W 74/0808 (2013.01); H04W 74/0816 (2013.01); H04W 76/11 (2018.02); H04W 74/004 (2013.01); H04W 74/006 (2013.01); H04W 88/08 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for use in a station (STA), the method comprising:
transmitting, to an access point (AP), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit with a value of one (1), wherein a physical layer (PHY) scrambling sequence of the first CF-End frame indicates a wideband 160 MHz bandwidth associated with a transmit opportunity (TXOP) being truncated by the STA; and
receiving, from the AP, in response to the first CF-End frame, a second CF-End frame occupying a wideband 160 MHz bandwidth indicated by the PHY scrambling sequence of the first CF-End frame.