Method for receiving synchronization information for direct communication between user equipment and apparatus for same
Disclosed is a method by which first user equipment receives synchronization information for a Device-to-Device (D2D) link at a user equipment (UE) in a wireless communication system. Specifically, the method comprises: receiving configuration information for synchronization from serving cell; and acquiring information on reference cell for synchronization of the D2D link based on the configuration information; and acquiring a synchronization resource based on the information on reference cell, wherein the information on reference cell comprises an identifier of the reference cell.
1. A method for a user equipment (UE) operating in a wireless communication systems supporting a Device-to-Device (D2D) link, the method comprising:
receiving D2D synchronization configuration information including an identifier of a reference cell from a serving cell, wherein the reference cell is one of a number of neighboring cells;
acquiring a synchronization resource of the reference cell based on the D2D synchronization configuration information; and
receiving a D2D signal through the D2D link based on the synchronization resource of the reference cell,
wherein the D2D signal is received within a predetermined range with respect to the synchronization resource of the reference cell.
2. The method according to claim 1 , wherein the D2D synchronization configuration information includes offset information used for the D2D link.
3. The method according to claim 2 , wherein the offset information indicates a subframe used for the D2D link.
4. The method according to claim 3 , wherein the subframe indicated by the offset information corresponds to a start subframe used for the D2D link.
5. A user equipment (UE) in a wireless communication system supporting a Device-to-Device (D2D) link, the user equipment comprising:
a receiver; and
a processor, connected with the receiver, that:
controls the receiver to receive D2D synchronization configuration information including an identifier of a reference cell from a serving cell, wherein the reference cell is one of a number of neighboring cells;
acquires a synchronization resource of the reference cell based on the D2D synchronization configuration information, and
controls the receiver to receive a D2D signal through the D2D link based on the synchronization resource of the reference cell,
wherein the D2D signal is received within a predetermined range with respect to the synchronization resource of the reference cell.
6. The UE according to claim 5 , wherein the D2D synchronization configuration information includes offset information used for the D2D link.
7. The UE according to claim 6 , wherein the offset information indicates a subframe used for the D2D link.
8. The UE according to claim 7 , wherein the subframe indicated by the offset information corresponds to a start subframe used for the D2D link.