Patent ID: 7483404
Filing Date: 2009-01-27
Classification: H04W

Abstract:
1. A method for controlling a mobile terminal's transmit power in CDMA-TDD system, comprising: (a) receiving a power control message from a base-station transmitted via a downlink; (b) acquiring a channel gain value between said mobile terminal and said base-station according to information transmitted via the downlink; (c) calculating a value of the transmit power of said mobile terminal according to said power control message, said channel gain value and a set processing gain value; and (d) adjusting the transmit power of said mobile terminal according to said value of the transmit power, wherein said adjusting the transmit power of said mobile terminal is synchronized with those of other terminals assigned within a same time slot; wherein said power control message at least includes items of background noise, inter-cell interference power level and target signal-to-interference ratio which have changed; and wherein step (c) further includes a step of calculating the value of the transmit power according to following formula: Wherein: P SIR I N r G is the processing gain; n is the number of mobile terminals assigned within one time slot; wherein N