| 摘要 |
PROBLEM TO BE SOLVED: To reduce a call interference rate of a mobile terminal, when the mobile terminal during communication is moved away from a base station and a propagation loss of a wireless channel is increased. SOLUTION: When a transmission power value from a transmission power control section 28 reaches a maximum value, a transmission data control section 21 of a mobile terminal receives a Power Control Bit read by a power control bit read section 13, a counter 20A in the transmission data control section 21 counts a value '0', and when the count n of the counter 20A exceeds a threshold N, transmission of data, using an incoming supplemental channel is stopped and data transmission using only an incoming Fundamental channels, is selected.
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