METHOD FOR ALLOWING BASE STATION TO SUPPORT DEVICE-TO-DEVICE (D2D) COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM, AND METHOD FOR ALLOWING D2D DEVICE TO EFFICIENTLY TRANSMIT D2D COMMUNICATION REQUEST SIGNAL

摘要

Method for supporting device-to-device (D2D) communication by a base station includes: receiving first signals for requesting D2D communication from a plurality of first D2D devices; identifying number of D2D devices which have requested the D2D communication based upon the first signals; allocating resources for transmitting a second signal for requesting D2D communication between the D2D devices based upon number of the plurality of first D2D devices which have been identified; and transmitting information on the allocated resources to the plurality of first D2D devices, wherein the resource allocation can be performed to distinguish combinations of an index of a D2D device, which transmits the second signal, and an index of a D2D device, which receives the second signal, from each other with respect to at least one of time, frequency, code, and space domains with respect to the plurality of first D2D devices.

主权项

1. A method for supporting device-to-device (D2D) communication by a base station (BS) in a wireless communication system, the method comprising:
receiving first signals for requesting D2D communication from a plurality of first D2D devices; obtaining number of first D2D devices requesting D2D communication based upon the first signals; allocating resources for transmitting a second signal for requesting D2D communication between D2D devices based upon the obtained number of first D2D devices; and transmitting information on the allocated resources to the plurality of first D2D devices which have transmitted the first signals, wherein the resources are allocated such that the resources are discriminated by combinations of an index of a D2D device which transmits the second signal and an index of a D2D device which receives the second signal in at least one of time, frequency, code, and spatial domains, with respect to the plurality of first D2D devices which have transmitted the first signals.