Scheduling method for inter-terminal direct communication in wireless communication system, and device for same
First Claim
1. A method for supporting device-to-device (D2D) communication by a user equipment (UE) in a wireless communication system, the method comprising:
- transmitting a reference signal in every candidate time location when a value of a generated random number at every candidate time location is larger than a reference value; and
determining that the UE is a scheduling UE, when the UE transmits the reference signal prior to respective peer UEs,wherein, when the UE is determined as the scheduling UE, the method further comprises;
receiving random access signals from the respective peer UEs in a random access period;
allocating resources for the respective peer UEs using scheduling information comprised by the random access signals; and
transmitting information about the resources allocated for the respective peer UEs through respective different sub-periods included in a resource allocation period, andwherein a position of the respective different sub-periods through which the UE transmits the information about the resources allocated for the respective peer UEs corresponds to a position of the allocated resources to the respective peer UEs among a plurality of resource units which appear after the resource allocation period.
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Abstract
Disclosed in the present application is a method for a terminal to perform inter-terminal direct communication in a wireless communication system. Specifically, the method comprises: a step for receiving, in a random access phase, random access signals from at least one counterpart terminal; and a step, in a resource allocation phase, for using information for scheduling included in the random access signals to allocate resources for the at least one counterpart terminal, and then transmitting the information of the allocated resources to the at least one counterpart terminal, wherein one time unit for inter-terminal direct communication comprises the random access phase, the resource allocation phase, and a phase for the implementation of inter-terminal direct communication.
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Citations
12 Claims
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1. A method for supporting device-to-device (D2D) communication by a user equipment (UE) in a wireless communication system, the method comprising:
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transmitting a reference signal in every candidate time location when a value of a generated random number at every candidate time location is larger than a reference value; and determining that the UE is a scheduling UE, when the UE transmits the reference signal prior to respective peer UEs, wherein, when the UE is determined as the scheduling UE, the method further comprises; receiving random access signals from the respective peer UEs in a random access period; allocating resources for the respective peer UEs using scheduling information comprised by the random access signals; and transmitting information about the resources allocated for the respective peer UEs through respective different sub-periods included in a resource allocation period, and wherein a position of the respective different sub-periods through which the UE transmits the information about the resources allocated for the respective peer UEs corresponds to a position of the allocated resources to the respective peer UEs among a plurality of resource units which appear after the resource allocation period. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A user equipment (UE) for supporting device-to-device (D2D) communication in a wireless communication system, the UE comprising:
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a transceiver; and a processor configured to; control the transceiver to transmit and receive signals to and from a base station (BS) or one or more peer UEs, control the transceiver to transmit a reference signal in every candidate time location when a value of a generated random number at every candidate time location is greater than a reference value, and determine that the UE is a scheduling UE, when the UE transmits the reference signal prior to respective peer UEs, wherein, when the UE is determined as the scheduling UE, the processor is further configured to; control the transceiver to receive random access signals from the respective peer UEs in a random access period, allocate resources for the respective peer UEs using scheduling information comprised by the random access signals, and control the transceiver to transmit information about the resources allocated for the respective peer UEs through respective different sub-periods included in a resource allocation period, and wherein a position of the respective different sub-periods through which the transceiver transmits the information about the resources allocated for the respective peer UEs corresponds to a position of the allocated resources to the respective peer UEs among a plurality of resource units which appear after the resource allocation period. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification