US 9,813,920 B2
Systems and methods for transmitting and receiving discovery messages
Santosh Paul Abraham, San Diego, CA (US); and George Cherian, San Diego, CA (US)
Assigned to QUALCOMM, Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 17, 2013, as Appl. No. 14/29,602.
Claims priority of provisional application 61/703,216, filed on Sep. 19, 2012.
Claims priority of provisional application 61/723,917, filed on Nov. 8, 2012.
Prior Publication US 2014/0082185 A1, Mar. 20, 2014
Int. Cl. G06F 15/173 (2006.01); H04W 24/00 (2009.01); H04W 8/00 (2009.01); H04W 48/08 (2009.01); H04W 84/18 (2009.01)
CPC H04W 24/00 (2013.01) [H04W 8/005 (2013.01); H04W 48/08 (2013.01); H04W 84/18 (2013.01)] 37 Claims
OG exemplary drawing
 
1. A method of discovering devices in a wireless communication system, the method comprising:
receiving, at a wireless device, a first discovery message from a first device of a device cluster comprising a plurality of devices during a first discovery interval, the first discovery message comprising information associated with the device cluster;
transmitting, from the wireless device, a discovery trigger message in response to receiving the first discovery message, wherein the discovery trigger message is transmitted to trigger at least one device of the device cluster to transmit one or more discovery messages, wherein said transmitting occurs at a transmission time based on contention for a medium; and
receiving, at the wireless device, a second discovery message from at least one device of the device cluster during a second discovery interval, the second discovery message configured to advertise a plurality of services provided by the at least one device of the device cluster in response to the discovery trigger message.