Patent ID: 7664199
Filing Date: 2010-02-16
Classification: H04W

Abstract:
1. A mobile telecommunication terminal device comprising: an error frequency calculating section to calculate detection frequency of errors received in received data; an error frequency correcting section to make a correction in such a way that the detection frequency of errors becomes a value being smaller than an actual value when the detection frequency of errors calculated by the error frequency calculating section exceeds a predetermined value; a target transmitting power setting section to decrease an SIR (Signal to Interference Power Ratio) to be targeted when the detection frequency of errors is not larger than a target detection frequency value and to increase a set value of the SIR to be targeted when the detection frequency of errors exceeds said target detection frequency value; an SIR measuring section to measure an SIR of a received signal; an SIR comparing section to compare the SIR measured by said SIR measuring section with the target SIR set by said target transmitting power setting section; and a transmitting power requesting section to make a request for lowering the SIR of the received signal when the measured SIR is judged by said SIR comparing section as being not smaller than the target SIR and a request for raising the SIR of the received signal when the measured SIR is judged by said SIR comparing section as being less than the target SIR.