Abstract In the radio communication system for performing a communication in the idle channel selected from a plurality of frequency channels, the originating call station transmits the station identification code to specify the distant station together with the idle channel data to be actually communicated, and the distant station designated by the station identification code shifts to the designated idle channel, and the communication is executed between two stations. During communication in a certain channel between two stations, in the case where a radio interference occurs in this channel and it is intended to shift to other channel, one station transmits the other channel data in the communication channel and the other station receives it, and the communication is continued each other in the other channel.
A transceiver comprising: transmitting receiving means for conducting a communication in an operation channel; a transmission switch manually operable for generating a transmission instruction; means for manually generating an originating call instruction; means in response to the originating call instruction for periodically examining the idle/busy condition of a call channel and upon an examination result of idle activating said transmitting/receiving means to transmit the originating call data including a selected communication channel in the call channel as an originating call procedure; means for shifting the operation channel of said transmitting/receiving means from the call channel to the selected communication channel after the originating call data transmission; and means in response to the transmission instruction for activating said transmitting/receiving means to transmit a message and in response to the transmission instruction generated during the call channel condition examination for activating said transmitting/receiving means to transmit the originating call data in the call channel, regardless of the examination result.
Claim 2
Dependent Claim
157 words
A transceiver comprising: transmitting receiving means for conducting a communication in an operation channel; a transmission switch manually operable for generating a transmission instruction; means for manually generating an originating call instruction; means in response to the originating call instruction for periodically examining the idle/busy condition of a call channel and upon an examination result of idle activating said transmitting/receiving means to transmit the originating call data including a selected communication channel in the call channel as an originating call procedure; means for shifting the operation channel of said transmitting/receiving means from the call channel to the selected communication channel after the originating call data transmission; and means in response to the transmission instruction for activating said transmitting/receiving means to transmit a message and in response to the transmission instruction generated during the call channel condition examination for activating said transmitting/receiving means to transmit the originating call data in the call channel, regardless of the examination result.