Method and apparatus for transceiving signal of device-to-device communication terminal in wireless communication system
An embodiment of the present invention provides a method in which a terminal transmits a device-to-device (D2D) signal in a wireless communication system. The D2D signal transmission method includes: transmitting D2D control information; and transmitting D2D data corresponding to the D2D control information, wherein the D2D control information and the D2D data are transmitted in the same subframe, and the D2D control information and the D2D data are always adjacent to each other in the frequency axis.
1. A method performed by a UE (user equipment) in a wireless communication system, comprising:
receiving a PSCCH (physical sidelink control channel) including frequency allocation information for allocating frequency resources for a PSSCH (physical sidelink shared channel) in first resource blocks in a subframe; and
receiving the PSSCH always adjacent to the PSCCH in the frequency domain in the subframe based on second resource blocks allocated by the frequency allocation information,
wherein the second resource blocks are continuous in the frequency domain at one end of the first resource blocks, and
wherein each of the first resource blocks and the second resource blocks are continuous resource blocks in the subframe.
2. The method of claim 1 , wherein a power offset value applied to the PSCCH is different from a power offset value applied to the PSSCH.
3. The method of claim 2 , wherein the power offset value applied to the PSCCH is changed according to a size of a resource allocated to the PSCCH and the power offset value applied to the PSSCH is changed according to a size of a resource allocated to the PSSCH.
4. The method of claim 2 , wherein the PSCCH is received with power increased by the power offset value applied to the PSCCH.
5. The method of claim 1 , wherein the PSCCH comprises information indicating one of the PSCCH or the PSSCH using a higher frequency band.
6. The method of claim 1 , wherein one of the PSCCH or the PSSCH using a higher frequency band is identified according to a DMRS (demodulation-reference signal) shift value.
7. A user equipment for a wireless communication system, comprising:
a transmitter and a receiver; and
a processor,
the processor configured to:
control the receiver to receive a PSCCH (physical sidelink control channel) including frequency allocation information for allocating frequency resources for a PSSCH (physical sidelink shared channel) in first resource blocks in a subframe, and
control the receiver to receive the PSSCH always adjacent to the PSCCH in the frequency domain in the subframe based on second resource blocks allocated by the frequency allocation information,
wherein the second resource blocks are continuous in the frequency domain at one end of the first resource blocks, and
wherein each of the first resource blocks and the second resource blocks are continuous resource blocks in the subframe.
8. The method of claim 1 , wherein the PSCCH further includes offset information on a time gap between the transmission of the PSSCH and a retransmission of the PSSCH.
9. The method of claim 1 , further comprising:
receiving configuration information related to a plurality of candidate frequency positions related to the receiving of the PSCCH from a base station,
wherein the first resource blocks are resource blocks corresponding to any one of the plurality of candidate frequency positions specified by the configuration information.