| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently secure the quality of a call at the time of automatically selecting plural base stations by comparing received electric field in the first selection of the base station and holding the selected base station for prescribed time. SOLUTION: The base station A is selected at the timing 7 of a base station reception waveform 4. The selection of the base station is fixed as it is for the period of prescribed time 10(t1 ). The intensity of received electric field is compared at the reception timing 8 of the first time after prescribed time 10(t1 ). Then, the base station B is selected. The base station C is similarly selected at next timing 9. Then, the selection of the base station is released after prescribed time (t2 ) 11 passes by a transmission waveform 5 after a call terminates. Since the selection of the base station is fixed for prescribed time during the call, the call is smoothly executed and the fluctuation of S/N becomes less. That the other moving station becomes the obstacle of the call through the other base station also becomes less. |
