US 11,785,473 B2
Coexistence operation of wireless devices
Rajendra Kumar Gundu Rao, Bangalore (IN)
Assigned to Cypress Semiconductor Corporation, San Jose, CA (US)
Filed by Cypress Semiconductor Corporation, San Jose, CA (US)
Filed on Oct. 15, 2021, as Appl. No. 17/502,618.
Application 17/502,618 is a continuation of application No. 16/445,002, filed on Jun. 18, 2019, granted, now 11,159,948.
Prior Publication US 2022/0182845 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 16/14 (2009.01); H04W 72/23 (2023.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01); H04W 84/12 (2009.01); H04W 74/06 (2009.01)
CPC H04W 16/14 (2013.01) [H04W 72/23 (2023.01); H04W 74/006 (2013.01); H04W 74/0808 (2013.01); H04W 84/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a processing device of a first wireless device, a request from a second wireless device to access a frequency band for a first amount of time;
preventing, by the processing device, a plurality of stations (STAs) associated with the first wireless device from using the frequency band for a second amount of time that is greater than the first amount of time;
granting, by the processing device, access to the frequency band to the second wireless device at a first time and for the first amount of time;
receiving, by the processing device via an interface between the first wireless device and a third wireless device, a notification that the frequency band is available for use by the first wireless device to communicate with the plurality of STAs without interfering with the second wireless device at a second time after the first amount of time and for a third amount of time, wherein the third wireless device is co-located with the first wireless device and the third wireless device is associated with the second wireless device, wherein a sum of the first amount of time and the third amount of time is less than the second amount of time;
transmitting, by the first wireless device, a trigger frame to a first STA of the plurality of STAs to schedule the first STA to transmit uplink data to the first wireless device using the frequency band at a third time and during the third amount of time without backoff, wherein the third time is after the second time; and
receiving, by the first wireless device, the uplink data from the first STA using the frequency band at the third time and during the third amount of time.