Abstract: A communication system capable of dynamically changing an MME to serve in call processing in accordance with the load condition of the MMEs and the like is provided. A communication system of the present invention includes: communication control apparatuses (10) to (12); and a node apparatus (20) that executes call processing relating to a communication terminal with the communication control apparatuses (10) to (12). The communication control apparatuses (10) to (12) form a context sharing group that shares subscriber data of the communication terminal. The node apparatus (20) selects a first communication control apparatus in the context sharing group, and transmits a call processing message to the first communication control apparatus. The first communication control apparatus executes the call processing using the subscriber data shared in the context sharing group.

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

Abstract: A communication system capable of dynamically changing an MME to serve in call processing in accordance with the load condition of the MMEs and the like is provided. A communication system of the present invention includes: communication control apparatuses (10) to (12); and a node apparatus (20) that executes call processing relating to a communication terminal with the communication control apparatuses (10) to (12). The communication control apparatuses (10) to (12) form a context sharing group that shares subscriber data of the communication terminal. The node apparatus (20) selects a first communication control apparatus in the context sharing group, and transmits a call processing message to the first communication control apparatus. The first communication control apparatus executes the call processing using the subscriber data shared in the context sharing group.

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

Abstract: A communication system capable of dynamically changing an MME to serve in call processing in accordance with the load condition of the MMEs and the like is provided. A communication system of the present invention includes: communication control apparatuses (10) to (12); and a node apparatus (20) that executes call processing relating to a communication terminal with the communication control apparatuses (10) to (12). The communication control apparatuses (10) to (12) form a context sharing group that shares subscriber data of the communication terminal. The node apparatus (20) selects a first communication control apparatus in the context sharing group, and transmits a call processing message to the first communication control apparatus. The first communication control apparatus executes the call processing using the subscriber data shared in the context sharing group.

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

Abstract: In order to enable to reduce an increase in traffic generated when emergency information is reported from a communication terminal to another communication terminal, an emergency information processing method includes: receiving emergency information from a communication terminal, determining a report destination depending on a reliability based on a number of receptions of the emergency information, and transmitting the emergency information to the report destination.

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

Abstract: A communication system capable of dynamically changing an MME to serve in call processing in accordance with the load condition of the MMEs and the like is provided. A communication system of the present invention includes: communication control apparatuses (10) to (12); and a node apparatus (20) that executes call processing relating to a communication terminal with the communication control apparatuses (10) to (12). The communication control apparatuses (10) to (12) form a context sharing group that shares subscriber data of the communication terminal. The node apparatus (20) selects a first communication control apparatus in the context sharing group, and transmits a call processing message to the first communication control apparatus. The first communication control apparatus executes the call processing using the subscriber data shared in the context sharing group.

Abstract: An exemplary object is to provide a communication system capable of seamlessly providing a service with utilization of MEC even when a communication terminal has moved across a wireless LAN communication area in a mobile communication area formed by a base station. The communication system according to the present invention includes a base station (10) that forms a mobile communication area, an access point (20) that forms a wireless LAN communication area, and an application server (40) that provides application services to a communication terminal (50) located in the mobile communication area. When the communication terminal (50) has moved into the wireless LAN communication area in the mobile communication area, the access point (20) sets a data transmission path with the base station (10) and relays data transmission between the base station (10) and the communication terminal (50).

Abstract: A communication system according to the present invention includes a base station that forms a mobile communication area, an access point that forms a wireless LAN communication area, an access point managing device that manages the access point, and an application server that provides an application service to a communication terminal located in the mobile communication area. In a case in which the communication terminal moves into the wireless LAN communication area within the mobile communication area, the access point managing device sets a data transmission path to the base station and relays data transmission between the base station and the communication terminal.

Abstract: An object of the present invention is to provide a vehicle communication system which distributes information which is necessary in vehicle units. A vehicle communication system according to the present invention includes: a vehicle base station which performs wireless communication with a vehicle terminal installed in a vehicle to receive vehicle related service; and a server apparatus which specifies the vehicle base station of a message distribution destination according to the vehicle related service to be provided, and distributes a message related to the vehicle related service to be provided, to the specified vehicle base station. When receiving the message transmitted from the server apparatus, the vehicle base station transmits the message to the vehicle terminal which subscribes to the vehicle related service related to the message, from a plurality of vehicle terminals and located in a communication area formed by the vehicle base station.

Abstract: The radio communication system of the present invention includes a base station (10), a mobility management node (20), and a gateway (30). The base station (10) transmits to the mobility management node (20) information of the origination addresses of neighboring base stations of the base station (10). The mobility management node (20) receives information of the origination addresses of the neighboring base stations from the base station (10) and transmits the information of the origination addresses of the neighboring base stations to the gateway (30). The gateway (30) receives information of the origination addresses of the neighboring base stations from the mobility management node (20).

Abstract: A communication system providing a multimedia service that informs a calling terminal that a communication sent from the calling terminal to a called terminal is undesired by the called terminal.

Abstract: A communication system providing a multimedia service that informs a calling terminal that a communication sent from the calling terminal to a called terminal is undesired by the called terminal.

Abstract: A communication system providing a multimedia service that informs a calling terminal that a communication sent from the calling terminal to a called terminal is undesired by the called terminal.

Abstract: A communication system providing a multimedia service which enables requesting a communication network to cancel a registration for a calling terminal as a bad terminal in the communication network. Typically, the calling terminal is connected to a calling-side communication network; and if the calling terminal is registered as a bad terminal in a called-side communication network, the calling-side communication network requests the called-side communication network to cancel the registration. The calling terminal may be informed that reception of a communication in the communication system has been restricted.

Abstract: SGSNs in the same pool-arca share their resource information by using O&M messages or GTP-C messages. At least one of the SGSNs (Sleeping SGSN) decides to sleep (shut down or run in a low power state), based on the resource information. Then the Sleeping SGSN sends a power down notification to the connected RNC/BSC and SGSNs, thereby preventing the RNC/BSC from selecting the Sleeping SGSN for new connection and handovers, and transferring the load on the Sleeping SGSN to other SGSNs.

Abstract: In order to save energy in EPS network, some of the MMEs and/or S-GWs are allowed to sleep (power down), when network's traffic load is decreased. When the traffic load becomes heavier, the network can power up some of the formerly sleeping MMEs and/or S-GWs.