Patent ID: 8180374
Filing Date: 2012-05-15
Classification: H04W

Abstract:
1. A method for transmitting data on the location of a mobile radio terminal to a receiver by means of a mobile radio network, comprising the following: defining substantially the service range of a radio cell or a certain group of radio cells of the mobile radio network as a subarea; assigning a plurality of different call numbers to the receiver, any one of these call numbers being valid for dialing the receiver; allocating, respectively, each of these call numbers to one radio cell or certain group of radio cells such that each radio cell or certain group of radio cells has a unique call number; determining the radio cell or certain group of radio cells in which the mobile radio terminal is located when a call request is addressed to the receiver by the mobile radio terminal during a call setup procedure wherein the radio cell or certain group of radio cells is determined by evaluating the cell identifier of the radio cell or certain group of radio cells; making the subarea of the mobile radio terminal available to the mobile radio system when the call request is addressed to the receiver by the mobile radio terminal; associating the determined radio cell or certain group of radio cells with an allocated call number of the receiver; establishing a connection between the mobile radio terminal and the receiver based on said allocated call number; by the receiver determining the associated radio cell or certain group of radio cells based solely on the allocated call number used for the connection; and supplying the receiver with information on the subarea, and thus the approximate location of the mobile radio terminal.