Method to localize a mobile telephone

Details Method to localize a mobile telephone Method to localize a mobile telephone

1999-08-02

2000-12-26

Vo, Nguyen

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

342450, H04Q 720

Patent

active

061672769

ABSTRACT:
To enable the localizing of a mobile telephone in a network of base transceiver stations, it is planned that the mobile telephone will undertake an exchange with a base transceiver station. In this exchange, this station will send it an absolute time so that the mobile telephone can temporarily locate itself with respect to this absolute time. During this exchange, the first base transceiver station furthermore sends the mobile telephone a piece of information .tau.1 on the distance between them. Then, at least two other base stations send different absolute times which are exploited by the mobile telephone to compute its position in the network by triangulation.

REFERENCES:
patent: 6011974 (2000-01-01), Cedervall et al.

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