Method for requesting device-to-device communication in wireless access system and apparatus for same

摘要

Disclosed are a method for requesting device-to-device communication in a wireless access system that supports device-to-device communication and an apparatus for the method. More particularly, the method comprises the steps of: receiving, from a first device, request information for requesting device-to-device communication with a second device; transmitting, to the second device, check information to inquire whether to accept device-to-device communication with the first device; receiving, from the second device, response information indicating that device-to-device communication is accepted; and, if the second device has accepted the device-to-device, transmitting resource allocation information for device-to-device communication to the first device and the second device.

主权项

1. A method of requesting a D2D (device-to-device) communication by a base station in a wireless access system supportive of the D2D communication, the method comprising:
receiving from a first device, by the base station, request information for requesting the D2D communication with a second device; and transmitting to the second device, by the base station, confirmation information for querying whether the second device accepts the D2D communication with the first device; wherein when the second device is in an active state, the method further comprising: receiving by the base station from the second device, through a resource allocated by the base station, first response information indicating whether the second device accepts the D2D communication with the first device, and if the base station receives, from the second device, the first response information indicating an acceptance of the D2D communication with the first device, transmitting, by the base station, first resource allocation information for the D2D communication to each of the first and second device, wherein when the second device is not in an active state, the method further comprising: assigning, by the base station to the second device, for a dedicated random access procedure, a first random access preamble for indicating the acceptance of the D2D communication with the first device and a second random access preamble for indicating declination of the D2D communication with the first device, receiving from the second device, by the base station, second response information comprising the first random access preamble or the second random access preamble through the dedicated random access procedure, and if the base station receives the second response information comprising the first random access preamble from the second device, transmitting, by the base station, second resource allocation information for the D2D communication to each of the first and second device.