Telefonaktiebolaget Lm Ericsson (publ)

Stefan Gustafsson

Mikael Lindberg

Mats Ernkell

Corina Grahm

A Location Server receives requests for subscribers that are within an Alert Area to enable notifications/alerts to be sent to the subscribers from an Alert Application. The Location Server extracts the location information by performing a search in a Database for subscribers that are located in the Alert Area. The quality of the locations in the database is dependent of the frequency with which a Core Network sends passive location data to the Location Server at network events when the Mobile Station is in contact with the network. The Location Server reconfigures the Core Network and Radio Access Network to send the information when it is needed. An advantage of the invention is that it is possible to provide services that require knowing which subscribers are currently located in a specific area in a flexible way without over loading the mobile network.

Method and apparatus for mobile subscriber alert notification

A method and system for obtaining the position of a mobile station located in a current network of a communications system including a plurality of networks supporting different positioning protocols. The current network is identified at a location center based on the identified current network. A suitable positioning protocol is selected among at least two protocols for communication of location information with the current network.

Method and system for positioning in a mobile communications network

A method and system for testing a memory in operation. A storage unit is used to temporarily free one memory location in the memory, making it possible to check this memory location for bit errors. Data intended for the selected memory location is stored in the storage unit, and instead a test pattern is written into the memory location to be tested and read out again, all in coordination with the normal operation of the memory. If the pattern read from the test location does not match the written test pattern, an alarm is raised.

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Karlskrona, Sweden

Stefan Gustafsson