Patent ID: 8243641
Filing Date: 2012-08-14
Classification: H04B,H04W,Y02D

Abstract:
1. A method for transmitting and receiving a first signal by a first mobile station (MS) in a wireless communication system, comprising: transmitting location information of the first MS to a base station (BS), periodically or non-periodically; receiving a relay request message from the BS, if the first MS is included in candidate relay MSs according to the location information of the first MS; determining whether to perform a relay function, and transmitting a relay response message to the BS, the relay response message including first information indicating whether to perform the relay function of the first MS, second information about a remaining power of the first MS, third information about a strength of a second signal received from the BS, and fourth information indicating whether the first MS is in a charge mode; and relaying a third signal between the BS and a second MS, if a relay confirm message is received from the BS and if it is determined that the relay function is performed, wherein the first MS is different from the second MS, and wherein the first information is determined based on the second information and the third information.