| 摘要 |
PURPOSE:To attain simultaneous communication with a special group by setting a transmission/reception channel to set a charnel based on a control signal including talking channel assignment information in succession to the control signal including group numbers of plural mobile stations. CONSTITUTION:A mobile equipment l receives a control signal via a control channel reception circuit 14 and when a conrol circuit 16 identifies its own group number, a call tone is generated on a telephone set MTEL. The circuit 16 sets a designated channel to a talking channel reception circuit 12 and a talking channel transmission circuit 13 based on the talking channel assignment information received successively and the off-hook of the telephone set MTEL operates the circuits 12,13. On the other hand, when a radio base station 2 recieves an incoming number of group designation from an exchange 3, the control circuit 23 sends the talking channel assignment information in succession to the incoming number via a control channel transmission circuit 24. Then the channel of the talking channel transmission circuit 21 and the talking charnel reception circuit 22 is set to send answer signal to the exchange 3. |
