Ericsson Gmbh

Clive Fernando

Shahrokh Amirijoo

Bikash Saha

A system for TOA positioning of a GPRS mobile station ( ) in a GSM network ( ) comprises a Gateway GPRS Support Node (GGSN) ( ) providing an interface to an LCS application ( ) and adapted to communicate with the GPRS mobile station ( ). The system further comprises a Base Station Subsystem ( ) serving the GPRS mobile station ( ). The BSS ( ) is communicably accessible by the LCS application ( ) through the GGSN ( ). The system also comprises a plurality of Location Management Units predisposed about the GSM network ( ) and configured to be utilized to measure the TOA of an access burst delivering positioning coordinates corresponding to an approximate position for the GPRS MS ( ). A Packet Control Unit ( ) is provided and adapted to communicate directly with LMUs ( ) that are GPRS capable and indirectly with non-GPRS LMUS ( ) through the BSS ( ).

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Plano, TX, United States of America

Clive Fernando