Patent ID: 8724651

Claim:
A method for use in a first mobile terminal in a wireless network, the first mobile terminal comprising a MAC unit and a signal monitoring unit, the method comprising: receiving a request-to-send (RTS) from a second mobile terminal; determining whether a clear-to-send (CTS) corresponding to the RTS is received; and when the CTS is not received: obtaining a destination address of a frame in a transmission queue, confirming, by the MAC unit, whether a second mobile terminal corresponding to a destination address is out of signal reachable areas of both the first mobile terminal and a destination terminal, the destination terminal being indicated in the RTS, wherein, when the second mobile terminal is out of the signal reachable areas of both the first mobile terminal and the destination terminal: activating, by the MAC unit, the signal monitoring unit, monitoring, by the signal monitoring unit, a signal quality being transmitted from the first mobile terminal, determining, by the signal monitoring unit, whether the signal quality is deteriorated within a predetermined time period after it is determined that the CTS is not received, and starting a sending procedure for the frame when the signal monitoring unit determines that the signal quality is not deteriorated.