Direct communication method between terminals in wireless communication system, and apparatus therefor
AssigneeLG Electronics Inc.
InventorHanbyul Seo
Life of this patent
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Abstract
A method for performing, by a first terminal, D2D communication in a wireless communication system, according to an embodiment of the present invention, the method comprising: receiving, from a second terminal, control information including information on future resources of the second terminal allocated to be used for transmission of the second terminal; and performing D2D transmission in consideration of the future resources of the second terminal, wherein the first terminal does not perform the D2D transmission in a resource in which a receipt power of the future resources of the second terminal is greater than a specific threshold.
Claims10
A method for performing D2D (device-to-device) communication, by a first user equipment UE, in a wireless communication system, the method comprising:
- selecting, from a predetermined resource pool, candidate resources for transmission of a D2D signal configured with a first priority;
- obtaining, from a second UE, information on a reserved resource scheduled to be used for transmission of data by the second UE and information on a second priority related to the data,
- determining whether to exclude the reserved resource from the candidate resources based on a specific threshold;
- and
- performing transmission of the D2D signal based on the determination,
- wherein the reserved resource is excluded from the candidate resources based on a detection of a reception strength greater than or equal to the specific threshold value in the reserved resource,
- wherein the reception strength is a reception power of a demodulation reference signal (DM-RS) directly measured in the reserved resource of the second UE, and
- wherein the specific threshold, which is a reference value for determining whether to exclude the reserved resource, is predetermined based on the first priority and the second priority.
A first user equipment (UE) performing D2D (device-to-device) communication in a wireless communication system, the first UE comprising:
- an RF (radio frequency) unit including a transceiver;
- and
- a processor,
- wherein the processor configured to:
- select, from a predetermined resource pool, candidate resources for transmission of a D2D signal configured with a first priority,
- control the RF unit to obtain, from a second UE, information on a reserved resource scheduled to be used for transmission of data by the second UE and information on a second priority related to the data,
- determine whether to exclude the reserved resource from the candidate resources based on a specific threshold,
- control the RF unit to perform transmission of the D2D signal based on the determination
- wherein the reserved resource is excluded from the candidate resources based on a detection of a reception strength greater than or equal to the specific threshold value in the reserved resource,
- wherein the reception strength is a reception power of a demodulation reference signal (DM-RS) directly measured in the reserved resource of the second UE, and
- wherein the specific threshold, which is a reference value for determining whether to exclude the reserved resource, is predetermined based on the first priority and the second priority.
Dependencies are inferred from the claim text.