Patent ID: 9713072
Date: 2017-07-18
CPC Classifications: H04B,H04W,Y02D

Claim:
1. A method of relay discovery and communication for a user equipment (UE) in a wireless communications system, comprising: receiving a configuration message sent from a serving network, wherein the configuration message identifies that the UE is a monitoring UE and indicates that the UE is authorized to be a relay UE; receiving a first relay discovery request, from a remote UE which announces relay discovery requests; transmitting a relay discovery response including an identification of the UE, to the remote UE; receiving a second relay discovery request including the identification of the UE, from the remote UE, wherein the second relay discovery request indicates that the UE is selected by the remote UE to be a selected relay UE for the remote UE; and activating a relay function to start relaying traffic of Proximity-based Service (ProSe) communication for the remote UE.