Method and apparatus for uplink power control in wireless communication system

A method for uplink power control for a mobile terminal in a wireless communication system, the method comprising:

• receiving average interference for a cell of a second base station neighboring a first base station, which corresponds to a serving base station, and a weight for the average interference from the first base station;
• determining uplink power by using the received average interference and the received weight;
• and
• transmitting an uplink signal to the first base station by using the determined uplink power,
• wherein the weight is determined based on one of resource allocation information for the cell of the second base station and an interference regulation request of the second base station.

A first base station in a wireless communication system, the first base station comprising:

• a controller configured to periodically measure interference for a cell of a second base station neighboring the first base station, to determine an average of the periodically measured interference, to broadcast the determined average of the periodically measured interference to mobile terminals located in a cell of the first base station, to determine a weight for the determined average of the periodically measured interference, based on one of resource allocation information for the cell of the second base station and an interference regulation request of the second base station, and to transmit the determined weight to the mobile terminals;
• a base station interface configured to receive the resource allocation information for the cell of the second base station and the message for interference regulation from the second base station under control of the controller;
• a transmitter configured to transmit the determined average of the periodically measured interference and the determined weight to the mobile terminals;
• and
• a memory configured to store the determined average of the periodically measured interference and the determined weight under control of the controller.

A mobile terminal in a wireless communication system, the mobile terminal comprising:

• a controller configured to receive average interference for a cell of a second base station neighboring a first base station, which corresponds to a serving base station, and a weight for the average interference from the first base station, to determine uplink power by using the received average interference and the received weight, and to transmit an uplink signal to the first base station by using the determined uplink power;
• a receiver configured to receive the average interference and the weight;
• a memory configured to store the average interference and the weight;
• and
• a transmitter configured to transmit the uplink signal to the first base station.

A method for uplink power control by a first base station in a wireless communication system, the method comprising:

• measuring interference for a cell of a second base station neighboring the first base station;
• determining an average of the measured interference;
• determining a weight for the determined average of the measured interference, based on one of resource allocation information for the cell of the second base station and an interference regulation request of the second base station;
• and
• transmitting the determined weight to the mobile terminals.