Patent ID: 6625465
Filing Date: 2003-09-23
Classification: H04W

Abstract:
A backward closed loop power control apparatus for a mobile communication system, comprising:a demodulation and PCB extraction unit for receiving a communication frame transmitted from a base station, demodulating the received communication frame and extracting a PCB having an allocated transmission power up or down instruction information; a CRC checking unit for checking a CRC with respect to the communication frame transmitted from the base station; a control unit for outputting a transmission power up or down control signal in accordance with a PCB extracted by the demodulation and PCB extraction unit and a CRC result value checked by the CRC checking unit; and a power adjusting unit for increasing the transmission power of the mobile station to the maximum value of the transmission power and decreasing the transmission power of the mobile station to the minimum value of the transmission power in accordance with a transmission power up or down control signal outputted from the controller.