Patent ID: 9622035
Date: 2017-04-11
CPC Classifications: H04B,H04W

Claim:
1. A method by which a first user equipment (UE) that is located out of a range of a group communication service determines a relay UE through a proximity service (ProSe) in a wireless communication system, the method comprising: receiving, by the first UE, traffic transmitted by a second UE which already relays group communication; determining, by the first UE, whether the traffic is information bound to group communication; determining, by the first UE, a relay UE for the group communication by using a discovery procedure when the traffic is not recognized as the traffic that is bound to the group communication; and determining, by the first UE, the second UE as the relay UE for the group communication when the traffic is recognized as the traffic that is bound to the group communication.