Orange

Yann Collet

Pierre Lemoine

Stephane Bandin

Samuel Dufour

A method for locating a terminal equipped with a UICC card, connected to a cellular telecommunications network and located in a current cell, the terminal storing in the UICC card an identifier of the current cell and at least one identifier of a previous cell in which the terminal was previously located. This method comprises the following steps, implemented by a processing server connected to the network: receiving said identifiers received from the terminal via the communication network; estimating location information for the terminal using location coordinates associated with at least one previous cell identified by an identifier stored in the terminal.

Method for locating a terminal connected to a cellular telecommunications network

A method for verifying location information of a terminal equipped with a UICC card, connected to a cellular telecommunications network and located in a current cell, said terminal storing in the UICC card an identifier of the current cell and at least one identifier of a previous cell in which the terminal was previously located. This method comprises the following steps, implemented by a processing server connected to the network: receiving said identifiers coming from the terminal via the communication network; determining first location information using the identifier of the current cell; estimating second location information using the identifier of at least one previous cell; detecting a location error if the two items of location information correspond to different geographical positions according to a defined criterion.

Method for verifying location information of a terminal connected to a cellular telecommunications network

Processing of cellular radio data, in particular by a SIM card of a terminal in a mobility situation, said SIM card receiving a current cell identifier and comparing the current identifier with an identifier previously stored in memory, in order to generate a notification intended for a remote server when there is a difference between the current identifier and an identifier previously stored in memory. More particularly, the SIM card stores in memory a list of current identifiers of respective cells in which the terminal is successively located, and the sending of a notification to the server occurs only if the current identifier is absent from this list.

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Issy les Moulineaux, France

Yann Collet