Communication system, radio network controller and base station

Abstract

The present invention has an object to provide a communication system capable of avoiding congestion in downlink communication or uplink communication and a shortage of radio resources arising therefrom. In the present invention, in a communication system including a normal user equipment (normal UE) that performs human to human communication and a machine type communication device (MTCD) that performs machine to machine communication, a base station device transmits a paging message to the normal UE and the MTCD for calling the normal UE and the MTCD. The paging message contains, for example, an equipment identity (UE-ID). A maximum number of equipment identities (UE-IDs) that can be accommodated within this paging message is set individually for the normal UE and the MTCD. Alternatively, the paging message contains a calling indicator in place of the equipment identity of the MTCD (UE-ID of MTCD).

1 . A communication system, which comprises a base station device connected to a core network and a plurality of terminal device groups including communication terminal devices connected to said base station device so as to perform radio communication therewith, wherein
 said base station device transmits, to said communication terminal device to be called, a paging message including an equipment identity indicating said communication terminal device,   said communication terminal device starts, upon reception of the paging message including the equipment identity indicating said communication terminal device from said base station device, communication with said base station device, and   a maximum number of said equipment identities allowed to be included within said paging message is set for each of said terminal device groups.