Nokia Telecommunications Oy

Nokia Corporation

Nokia Networks Oy

Juha B&auml;ck

Heikki Lindholm

Heikki Juhani Einola

Lauri Kalevi Lahtinen

Seppo Huotari

Juha T Timonen

Lauri S&ouml;derbacka

Khiem Le

Serge Haumont

Jaakko Rajaniemi

Markku Verkama

Tony Hulkkonen

Leif Friman

Jari Hartikainen

Raili Numminen

Sami Huusko

Juhapekka Niemi

Matti Keskinen

Tapani Virtanen

The present invention relates to a method of changing a telecommunication channel in a mobile communication system for a given mobile station, which mobile station has a connection in progress, and the connection is provided with a channel on a radio connection between the mobile station and base station system and a telecommunication channel between the base station system and a mobile services switching center. In order to facilitate the changing of the telecommunication channel the method includes putting a new telecommunication channel between the mobile services switching center and the base station system, indicated by the handover message into use for the connection, and connecting the channel used to the new telecommunication channel in such a way that the radio channel remains unchanged irrespective of the change of the telecommunication channel.

Method of changing communication channel in mobile system

The basic idea of the invention is to separate the location area used in the RAN and the reporting area used when reporting the location of the mobile to the core network. The size of the location area is selected preferably in the RAN based on the services used by the subscriber to optimize the use of radio resources. A reporting area comprises one or a plurality of location areas. The size of a reporting area is selected based on the accuracy of location information needed in the core network. The RAN informs the core network when a subscriber moves out of his current location area. The core network and the radio access network negotiate the size of the reporting area prior to the activation of the service. Additionally, the reporting areas can be renegotiated when the service is in the active state.

Location management in a mobile telecommunication system

A method, a system, or an article of manufacture provides Mobility Management (MM), for example, an update procedure, in a Core Network (CN) of a mobile communication system. The Mobile Station (MS) includes an indicator which defines an update type. The update type includes: all CN entities; one type of CN entity only. If the indicator has the update type of all CN entities, the MS registers all CN entities. If the indicator has the update type of one type of CN entity only, the MS registers the one type of CN entity only. The CN entities may be MSC/NVLR CN entity, SGSN CN entity, or other CN entity. The method includes the MS determining to which of the CN entity to perform the update procedure; the MS updating the CN entity; the CN acknowledging the MS whether update is successful or failed; and the CN acknowledging the MS whether update of other CN entity is needed, if needed, the CN defining to which of the CN entity to perform update, and continuing the update of the defined CN entity. The MS does not have to know the services subscribed to a user, nor does the MS have to know the configuration of the CN.

Indicator in the mobility management (MM) procedures to specify the procedure type executed in the core network (CN) entities

A cellular radio access network and a location updating in a cordless communications system, in a cellular radio access network ( ), which is connected to one or more core networks ( ) or services (SP to SP ), each of them having a dedicated mobility management. In a cell, identities of all those location areas are broadcast to which said cell belongs. A subscriber terminal (MS) sends to the radio access network only one location updating message irrespective of how many core networks ( ) or services (SP to SP ) have a simultaneously changing location area at a handover from one cell to another. On the basis of the information contained in the location updating message, the network ( ) defines the core networks or services and location areas to which the location updating applies and sends a location updating message informing the new location of the subscriber or the subscriber terminal separately to each defined core network or service.

Cellular radio access network and location updating in a cordless communications system

Growing community of inventors

Helsinki, Finland

Juha Bäck

Growing community of inventors

Helsinki, Finland

Juha B&auml;ck

Juha Bäck