| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid radio wave interference even when another communication mode coexists, by automatically changing a transmission interval and/or frequency of a logic control channel in a cordless telephone in a TDMA-TDD mode.SOLUTION: The cordless telephone comprises a voice input/output unit 6, a reception processing unit 3 for a voice signal, a transmission processing unit 9 for a voice signal, and a transmission control unit 10. To the reception processing unit 3, an electric field intensity measurement unit 12 for receiving a carrier sense of a logic control channel to measure an electric field intensity of an interference wave and a comparison determination unit 13 for comparing an electric field intensity measured by the electric field intensity measurement unit 12 with a preset threshold value 13 are serially connected. The transmission control unit 10 includes a frequency determination unit 10a for changing a frequency of a carrier sense when a comparison result of the comparison determination unit 13 is equal to or more than the threshold value. The transmission processing unit 9 includes a frequency setting unit 9a for transmitting a carrier sense having the frequency determined by the frequency determination unit 10a.</p> |
