| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problems: a mobile station cannot access a control station due to a low S/N ratio of a radio line, or the control station needs to notify the mobile station about a radio line to be selected. <P>SOLUTION: A radio communication system includes a mobile station that performs radio communication with a control station by a plurality of radio lines through a base station. The mobile station includes a measuring signal transmission part for transmitting a measuring signal to the control station for each radio line during non-communication, an S/N ratio measuring part for measuring the S/N ratio of the measured signal returned from the control station, and a radio line data storing part for associating the measured S/N ratio data with each radio line and storing them. The radio communication system selects any radio line having not less than a predetermined S/N ratio for connection on the basis of the radio line data stored in the radio line data storing part during communication with the mobile station. When receiving the measured signal transmitted from the mobile station, the control station connects a call reception path and a call transmission path in loop-back manner to loop back the measured signal from the mobile station. <P>COPYRIGHT: (C)2011,JPO&INPIT |
