Abstract:

In one embodiment, the disclosure relates to a method for locating a mobile terminal in a communication network. The method includes: receiving a request data frame for locating the mobile terminal; uniquely encoding at least a portion of the request data frame (at an LCS client); determining the location of the mobile terminal (by a PDE); communicating the location information of the mobile terminal in a response data frame having an encrypted portion; and decrypting the location information of the mobile terminal (at the LCS client).

Description:

BACKGROUND

Advanced telecommunication systems provide geolocation services in addition to the traditional telephony services. Geolocation equipment determines the geographical location of the mobile terminal and provides services such as providing directions or directing the mobile terminal to nearby points of interest. Geolocation equipment may provide other services including the Emergency 911 (E911) service, PLMN operator services, and Lawful Intercept services in which user location may be needed.

Conventional communication systems carry voice, data and multimedia communication on the user plane while conducting signaling which supports the actual communication on the control plane. Control plane-based position location relies ultimately on the exchange of signaling messages between an external location services client (LCS) and the internal network position determination entity (PDE) that is responsible for the actual location calculation. Locating a mobile terminal can be done on the control plane or the use plane. The third Generation Partnership Project (3GPP) provides technical specification and functional description of the provision for location information.

For control plane, as opposed to user plane positioning, signaling messages must be sent across different interfaces and between the many network elements involved in the transac ...

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