Patent ID: 9642099
Date: 2017-05-02
CPC Classifications: H04W

Claim:
1. A method for power control command for device-to-device (D2D) communications in a wireless communication network, the method comprising: establishing, by a base station, a link with a user equipment (UE) in a cell, wherein the UE is configured to perform a D2D transmission to one or more UEs; and sending, by the base station, a transmit power control (TPC) command to the UE, the TPC command instructing the UE to perform the D2D transmission at a pre-defined transmit power level when no uplink transmissions are scheduled to be received by the base station over the time-frequency resources available to carry the D2D transmission and at a transmit power level defined by a power control rule when at least one uplink transmission is scheduled to be received by the base station over the time-frequency resources available to carry the D2D transmission, the transmit power level defined by power control rule being lower than the pre-defined transmit power level such that the TPC command improves D2D performance when no uplink transmissions are scheduled to be received by the base station over the time-frequency resources available to carry the D2D transmission.