Patent ID: 8937912
Filing Date: 2015-01-20
Classification: H04W

Abstract:
1. A method for allocating resources in a wireless communications system, the method comprising: operating a wireless station to transmit a request to send (RTS) message; operating a receiver to receive the RTS message and, in response, transmit an ask for request (AFR) message to be received by the wireless station which transmitted the RTS message, and by another wireless station, the AFR message including channel state information indicating to the wireless station and to the another wireless station communication resources that the receiver allocates to the wireless station so as to allow the another wireless station to evaluate communication resources that are still available to the another wireless station; operating the receiver to wait for receipt of another RTS message transmitted by the another wireless station which received the transmitted AFR message and, if the receiver receives the another RTS message, operating the receiver to transmit another AFR message including channel state information indicating to the another wireless station and to a further wireless station communication resources that the receiver allocates to the another wireless station and operating the receiver to wait for receipt of a further RTS message transmitted by the further wireless station, and if the receiver does not receive the another RTS message within a period of time, operating the receiver to transmit a clear to send (CTS) message; and operating the receiver to transmit a different another AFR message before transmitting the CTS message if the receiver does not receive the further RTS message within a period of time after receiving the another RTS message due to a collision that occurred while the receiver was waiting for the further RTS message.