Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1998-02-17
2000-10-31
Le, Thanh Cong
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455435, 455458, H04B 700
Patent
active
061415510
ABSTRACT:
A mobile communications device is selectively in communication with a radio telecommunications system having an authorized service provider and an unauthorized service provider, each service provider with a control channel associated therewith. A method for managing the communication between the device and the system involves the steps of (a) detecting control channels received by the mobile communications device, (b) determining whether the control channels received by the mobile communications device are associated with an authorized or an unauthorized service provider, (c) storing an authorization code representative of whether the control channels received by the mobile communications devices are associated with an authorized or an unauthorized service provider, (d) in response to receiving a request to initiate communication between the mobile communications device and the radio telecommunications system, selecting one of the control channels received by the mobile communications device to initiate communication between the mobile communications device and the radio telecommunications system, (e) determining the authorization code associated with the one of the control channels, and (f) enabling communication between the mobile communications device and the radio telecommunications system only if the authorization code associated with the one of the control channels is associated with an authorized service provider.
REFERENCES:
patent: 4905301 (1990-02-01), Krolopp et al.
patent: 5442806 (1995-08-01), Barber et al.
patent: 5734980 (1998-03-01), Hooper et al.
patent: 5905955 (1999-05-01), Bamburak et al.
Guruparan Corattur Natesan Sambandam
Romesburg Eric Douglas
Cong Le Thanh
Ericsson Inc.
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