Patent ID: 7376390
Filing Date: 2008-05-20
Classification: H04W

Abstract:
1. A radio control apparatus for controlling downward packet communication between a mobile communication terminal and a base station by using a channel individually allocated to each of a plurality of mobile communication terminals to cause a control signal to be transmitted between each mobile communication terminal and the base station to at least establish a later occurring data communication using a channel common to the plurality of mobile communication terminals in a time-division manner to cause a data signal to be transmitted to each mobile communication terminal and the base station, comprising: calculation means for calculating a transmission power as to the data signal to be transmitted between a particular mobile communication terminal of said plurality of mobile communication terminals and the base station based on a predetermined value of transmission power of the control signal to be transmitted between the particular mobile communication terminal and the base station and a predetermined offset value; storage means for storing an upper limit value of the transmission power of said data signal; comparison means for comparing the transmission power of the data signal calculated by said calculation means with said upper limit value stored in said storage means and for providing a comparison output based thereon; and control means for receiving said comparison output and for performing control to decrease the transmission speed of said data signal when the transmission power of said data signal calculated by said calculation means is indicated by the comparison output to be greater than said upper limit value, and to increase the transmission speed of said data signal when the transmission power of said data signal calculated by said calculation means is indicated by the comparison output to be less than said upper limit value.