Communication system

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, comprising:
 a base station connected to a core network; and   a plurality of terminal devices connected to the base station and configured to perform radio communication with the base station,   wherein the plurality of terminal devices include a machine type communication device that performs machine to machine communication, and an other terminal device, and   the base station transmits a paging message for calling the machine type communication device, in a radio frame and a subframe that are different from a radio frame and a subframe in which the base station transmits a paging message for calling the other terminal device.   
     
     
         2 . The communication system according to  claim 1 , comprising
 a plurality of terminal device groups including the machine type communication device,   wherein the radio frame and the subframe in which the base station transmits the paging message for calling the machine type communication device are configured for each of the plurality of terminal device groups.