Mobile communication system, MME, incoming call control method of mobile communication system, and incoming call control method of MME

摘要

A mobility management device makes an ISR feature operate in collaboration with an SGSN. It is assumed that a location registration area managed by the mobility management device exists within a location registration area managed by the SGSN, and an incoming voice call is made to a mobile communication device during when the mobile communication device is moving out of the location registration area. The mobility management device includes an incoming voice call control unit that, in the above case, sends a response message indicating that the mobile communication device is moving to a switching device and, when an incoming voice call message is sent again from the switching device to a switching device after the lapse of a specified period of time, performs call attempt to the mobile communication device.

主权项

1. A mobile communication system comprising:
a terminal (UE (User Equipment)) that performs handover procedure from an LTE (Long Term Evolution) wireless area to a 3G wireless area or a 2G wireless area; and an MME (Mobility Management Entity) that discards, if the handover procedure is ongoing when the MME receives a paging request message for the terminal over an SGs interface, the paging request message and no further action is performed by the MME in response to the reception of the paging request message.