Patent ID: 7930387

Claim:
A location information server system for acquiring the status of, and activating, a user terminal in wireless communication network, comprising: a plurality of sensor means capable of communicating through a network; a priority database to location information from each sensor means; location information selecting means for selecting a location information having a high priority from overlapping location information with reference to the database; a sensor information integration processing means which integrates acquisition information from at least two sensor means of the sensor means, including acquired location information acquired identification information of a user terminal, wherein information from each sensor means is accumulated in the location information server as terminal location information database and the location information server means includes a location information providing means capable of providing the sensor information to a predetermined network server corresponding to the user terminal; and a service mobility processing function provided for by one of a service startup terminal and a service relay terminal, which actives service of a user terminal on one of a plurality of wireless networks selected by the service mobility processing function, wherein the location information server system changes over communications between different ones of the plurality of wireless networks by selecting appropriate ones of said wireless networks without interrupting a user's continuing communication or making the user conscious of the changes between wireless networks.