Patent ID: 9288829
Filing Date: 2016-03-15
CPC Classification: H04W

Claim Text:
1. A method for performing D2D (device-to-device) direct communication by a user equipment (UE) in a wireless communication system, the method comprising: transmitting to the base station, a first message including a D2D connection request for D2D direct communication, the UE is connected with a base station; receiving, from the base station, a second message corresponding to a response to the D2D connection request; and transmitting a peer discovery signal periodically to at least one neighboring UE according to peer discovery configuration information, wherein the second message includes a D2D-RNTI (radio network temporary identifier) allocated to the UE for D2D direct communication and the peer discovery configuration information, wherein the peer discovery configuration information indicates a time slot shift for the UE and a peer discovery channel for the peer discovery signal among a plurality of peer discovery channels, and wherein different time slot shifts are applied to peer discovery channels which are mapped on different frequency resources.