Nec Corporation

Hideki Kozuka

Yoshio Ueda

Jagdeep Singh Ahluwalia

Kenji Kawaguchi

Neeraj Gupta

Yasunari Kurokawa

In the case where a wireless terminal conducts a handover from a first device to a second device, a communication device of this exemplary embodiment performs communication with the second device and a core network node, in order to notify an appropriate device of information regarding the transfer path of data. The communication device receives control information from the core network node upon the handover. The control information is information regarding the transfer path of data to be transferred from the first device to the second device.

Communication device, core network node, mobile communication system, communication method, and storage medium

The present invention provides a communication node for a communication network. The communication node includes means for identifying that paging is required for a mobile communication device, means for obtaining information identifying at least one cell in which said mobile communication device has been located previously and for obtaining further information relating to at least one of movement of the mobile communication device between cells and a time when said mobile communication device was located in said at least one cell, means for defining a set comprising at least one cell in which to seek said mobile communication device, based on said information and said further information, and means for initiating transmission of a respective paging message for said mobile communication device in each cell of said set.

Communication system

At the time of registration of a base station, the base station reports to a gateway device list information regarding core networks that are to be connected. At the time of call origination from a user terminal, the base station reports to the gateway device, by means of a message of protocol for termination between a base station and a gateway, network identification information that indicates core networks that are to be connected to the user terminal The gateway device transfers a control message from the user terminal to the core networks indicated by the network identification information that was reported. At the time of call connection to the user terminal, the gateway device selects the base station to which paging from the core network is to be transmitted on the basis of the list information reported from the base station at the time of registration.

Communication system, base station device, gateway device, method for controlling base station device, and method for controlling gateway device, for enabling to connect user terminal to appropriate core network from among plurality of core networks when making or receiving call

Growing community of inventors

Tokyo, Japan

Hideki Kozuka