Ericsson Gmbh

Bikash Saha

Bagher Rouhollah Zadeh

Christopher Hugh Kingdon

Tahir Hussain

Shahrokh Amirijoo

Clive Fernando

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 ( ).

TOA Positioning of GPRS mobiles within the BSS centric architecture of a GSM network

A system and method for efficiently utilizing the radio interface in a mobile station positioning capable mobile communications network. A maximum period of mobile station positioning inactivity is allowed after which any system resources, such as semi-permanently allocated control channels, may be deallocated, thereby allowing the control channel or like resource to be utilized for other Switching System/Base Station System communications.

System and method for configuring generic equipment measurement units with a mobile services switching center

An improved system and method for determining a position of a mobile station in a mobile telecommunications network is disclosed. The system includes a database having geographical information pertaining to the service area of the telecommunications network, including whether service areas therein are characterized as urban areas, suburban areas or &ldquo;badurban&rdquo; areas in which radio communication is especially limited. The system further includes a mobile location center (MLC) which, among other things, calculates the number of access signal bursts which are required for transmission by the mobile station to be located. The access burst number is calculated based upon the geographical information pertaining to the service areas stored in the database and upon a requested position determination accuracy. By measuring the time of arrival delay of the burst signal transmission received by two or more base transceiver stations, the MLC computes the position of the mobile station.

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Plano, TX, United States of America

Bikash Saha