Location updating for a packet-switched data service in a mobile communciation system
AssigneeNokia Telecommunicaitons Oy
InventorsTimo Jokiaho, Markku Rautiola, Jari Hamalainen, Jussi Rajala
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Abstract
A location management method is provided for packet data transmission in a mobile communication system. To reduce the amount of signalling for location management concerning packet transmission compared to location management concerning normal traffic, location data of the mobile stations utilizing a data service is updated in a special data service user database. Packets to these mobile stations are sent via the cells as indicated by location data in that database. The database resides in a data service center which interfaces a data network.
Claims14
A location management method for packet data transmission in a mobile communication system between a mobile station and a data service center establishing an interface to a data network, said method comprising the steps of:
- maintaining and updating location data of the mobile station in a subscriber database of a cellular network of the mobile communication system in accordance with a location area configuration employed in the cellular network and including one cell or a group of cells, within an accuracy of one cell or group of cells;
- registering the mobile station as a subscriber to a user database of the data service center at the beginning of a virtual connection;
- and
- transmitting data packets and messages to the mobile station only via the cell or group of cells indicated by the location data contained in said data service user database.
An arrangement for location management in connection with packet data transmission in a mobile communication system, comprising:
- a mobile station;
- a mobile services switching center;
- at least one subscriber database in which location data as to location of the mobile station is maintained and updated;
- a data service center which is arranged to establish a data connection from the mobile communication network to a data system;
- means for establishing a virtual packet data connection through a the mobile communication system, between the mobile station and the data service center;
- a data service subscriber database arranged to have the mobile station registered therein at the beginning of a virtual packet data connection and to have location data as to location of the mobile station maintained therein during the virtual packet data connection, with an accuracy of one cell or group of cells of said mobile communication system.
Dependencies are inferred from the claim text.