Method for locating a cellular radiocommunication mobile station, and equipment for implementing the method
First Claim
1. Method for locating a cellular radio telephone communication mobile station, comprising associating at least one fixed beacon with a user of the mobile station, emitting from the fixed beacon, with a range (r) substantially smaller than a characteristic dimension (R) of cell, a radio signal specific to said user, and, when the mobile station picks up the radio signal emitted by the beacon, addressing a signal to communication network indicating that the mobile station is within range of the fixed beacon.
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Accused Products
Abstract
At least one fixed beacon is associated with a user of a mobile station and emits, with a range (r) substantially smaller than the characteristic dimension (R) of a cell, a radio signal specific to said user. When the mobile station detects the radio signal emitted by the beacon, the station addresses a signal to the communication network indicating that it is within range of the beacon.
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Citations
14 Claims
- 1. Method for locating a cellular radio telephone communication mobile station, comprising associating at least one fixed beacon with a user of the mobile station, emitting from the fixed beacon, with a range (r) substantially smaller than a characteristic dimension (R) of cell, a radio signal specific to said user, and, when the mobile station picks up the radio signal emitted by the beacon, addressing a signal to communication network indicating that the mobile station is within range of the fixed beacon.
- 12. Radio telephone equipment for a user of a cellular radio communication network, comprising a mobile station able to communicate with base stations of the network, at least one fixed beacon emitting, with a range (r) substantially smaller than a characteristic dimension (R) of a cell of the network, a radio signal specific to the user, the mobile station having means to detect the radio signal emitted by the beacon and, in response to the detecting of this radio signal, to address a signal to the base station with which it is communication, indicating that the mobile station is within range of the beacon.
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14. Radio beacon for locating a cellular radio telephone communication mobile station, comprising means for emitting, with a range (r) substantially smaller than a characteristic dimension (R) of a radio telephone network cell, a radio signal specific to a user according to a format of a channel for broadcasting from a base station of the cellular network to mobile stations.
Specification