Fujitsu Corporation

Kohji Inokawa

Kazuyuki Ohtsu

Yuji Tajima

Takashi Mitsuhashi

Yumi Eguchi

A mobile network system includes a guidance message control server, a call control server and a plurality of access gateways. The call control server includes a gateway management section that determines an access gateway as a subject of call restriction, a first instructing section that transmits a message transmission instruction to the guidance message control server and a second instructing section that transmits a call restriction instruction to the access gateway. The guidance message control server includes a receiving section that receives the message transmission instruction, an acquisition section that acquires a guidance message data and a transmission section that transmits the guidance message data to a specified multicast group. Each of the access gateways includes a processing section that performs multicast group participation processing for participating in the specified multicast group and a guidance transmission section that transmits the guidance message data to a mobile terminal.

Mobile network system and guidance message providing method

A mobile network system includes a guidance message control server, a call control server and access gateways. The call control server receives a call request notification from a first access gateway, determines whether a second access gateway is connected to a second mobile terminal, transmits a message transmission instruction to the guidance message control server and transmits a response message including a same group specifying information. The guidance message control server receives the message transmission instruction from the call control server, acquires guidance message data specified by a message specifying information and multicast transmits the guidance message data to a multicast group specified by the group specifying information. The first access gateway receives a call connection request from the first mobile terminal and transmits the call request notification to the call control server, performs multicast group participation processing for participating in the multicast group and transmits the guidance message data.

Growing community of inventors

Kawasaki, Japan

Kohji Inokawa