Patent ID: 9712285
Date: 2017-07-18
CPC Classifications: H04L,H04W

Claim:
1. A method for discovering a service in a wireless communication system, the method comprising: receiving, by a responding device, from a requesting device, a service request frame, the service request frame including a first service identifier indicating a service queried by the requesting device; starting, by the responding device, a service query timer upon receiving the service request frame; transmitting, by the responding device, to the requesting device while the service query timer is running, a service response frame to indicate that the queried service is supported but is currently not available and that the requesting station should wait to receive a final determination via a subsequent service announce frame, the service response frame including a second service identifier that is set to a same value in the first service identifier; and when the responding device determines that the queried service is accepted while the service query timer is still running, stopping the service query timer and transmitting, by the responding device, to the requesting device, the subsequent service announce frame to indicate only that the queried service is accepted or not, wherein the subsequent service announce frame includes a third service identifier that is set to a same value in the first service identifier, and wherein the subsequent service announce frame is not transmitted by the responding device if the queried service is not accepted or the service query timer is expired.