Method, base station and user equipment for performing D2D service in wireless communication system

摘要

A method for performing device to device (D2D) communication in a wireless communication system and a user equipment for the method are disclosed. The method comprises the steps of determining at least one D2D communication group a of a plurality of D2D communication groups; and giving RNTI corresponding to the determined at least one D2D communication group a to a D2D transmitting user equipment i and a D2D receiving user equipment j of a D2D link (i, j).

主权项

1. A method for supporting device to device (D2D) communication at a base station in a wireless communication system, the method comprising:
determining at least one D2D communication group a of a plurality of D2D communication groups; and giving a group identifier corresponding to the determined at least one D2D communication group a to a D2D transmitting user equipment i and a D2D receiving user equipment j of a D2D link (i, j),wherein the D2D link (i, j) is a communication link for the D2D communication between the D2D transmitting user equipment i and the D2D receiving user equipment j, wherein the determining at least one D2D communication group a of a plurality of D2D communication groups includes:
receiving information on the at least one D2D communication group a, which satisfies a first condition, from the D2D receiving user equipment j,receiving information on the at least one D2D communication group a, which satisfies a second condition, from the D2D transmitting user equipment i,determining the at least one D2D communication group a, which satisfies the first condition and the second condition, wherein the second condition is obtained by receiving a first group interference value from the D2D receiving user equipment j within the plurality of D2D communication groups,determining a minimum value of the first group interference value as a second group interference value, andtransmitting the second group interference value to the D2D transmitting user equipment i, wherein the first condition is satisfied when an interference value received by the D2D receiving user equipment j from a plurality of transmitting user equipment k within the D2D communication group a satisfies a signal to interference plus noise ration (SINR) required for the D2D receiving user equipment j.