Thing and the said traffic level which monitor the traffic level which is exchanged the cellular

摘要

(57) Abstract Manner and the device in order to manipulate the cellular telephone system which supports the execution of software hand off between the systems are disclosed. As for subscriber unit (20), base station (22AWhen 22D) from the pilot channel is detected, pilot strength measurement report is generated. When the base station control unit (24A and 24B) which receives pilot strength measurement report deciding that the said base station (24A and 24B) is portion of the second cellular telephone system, software hand off request between the systems is generated. Authorization control subsystem (44) receives the software hand off request between the systems, authorizes the said request with the second cellular telephone system on the basis of traffic level, or refuses. To be decided on the basis of the link load message which is received cyclically by the authorization control subsystem (44) which is generated by the interface port (32f) which is jointed to the interconnect (46) with the first cellular telephone system and the second cellular telephone system it is possible traffic level. Link load message includes the length and average frame rate information of the peak queue.