System and method for connection of cellular base stations to a mobile switching center using dial up telephone circuits
First Claim
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1. A cellular mobile telephone system incorporating a switching office of a common carrier telephone system, the cellular mobile telephone system comprising:
- a mobile switching center for connecting mobile telephones in the system to one another and to telephones outside the system by way of the switching office according to telephone addresses provided by originating callers;
a cellular radio base station defining a cell of the system for connecting the mobile telephones to the mobile switching center;
a plurality of trunk lines connecting the mobile switching center and the switching office;
means for connecting the cellular radio base station to the switching office in accordance with a protocol of the common carrier system;
means for connecting and disconnecting in a predetermined manner the cellular radio base station and the mobile switching center by way of the switching office thereby establishing a completed data link therebetween; and
means for communicating control information between the cellular radio base station and the mobile switching center on the completed data link.
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Accused Products
Abstract
A cellular or non cellular radiotelephone system consisting of a plurality of base station radios at one or more radio base station sites including method of connection of such base station radios to the Mobile Switching Center by the use of standard public telephone circuits whereby connections on these public telephone circuits are established only when required to provide communications to a mobile subscriber served by the radio base station.
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Citations
25 Claims
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1. A cellular mobile telephone system incorporating a switching office of a common carrier telephone system, the cellular mobile telephone system comprising:
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a mobile switching center for connecting mobile telephones in the system to one another and to telephones outside the system by way of the switching office according to telephone addresses provided by originating callers; a cellular radio base station defining a cell of the system for connecting the mobile telephones to the mobile switching center; a plurality of trunk lines connecting the mobile switching center and the switching office; means for connecting the cellular radio base station to the switching office in accordance with a protocol of the common carrier system; means for connecting and disconnecting in a predetermined manner the cellular radio base station and the mobile switching center by way of the switching office thereby establishing a completed data link therebetween; and means for communicating control information between the cellular radio base station and the mobile switching center on the completed data link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A mobile switching center for switching calls among mobile telephone subscribers and to landline telephone subscribers according to a telephone address provided by an originating caller, via at least one associated cellular radio base station of a cellular system, the cellular radio base station having at least one transceiver, said mobile switching center including:
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means for establishing a standard telephone circuit connection between the mobile switching center and the cellular radio base station, the circuit being established by standard landline telephone signalling; means for communicating control information over the established standard telephone circuit connection; and means for determining when the standard telephone connection needs to be established and when it can be released. - View Dependent Claims (13, 14)
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15. A cellular radio base station containing a plurality of radio transceivers for converting radio frequency communications from mobile subscribers to electrical signals, said cellular radio base station being associated with a mobile switching center, said cellular radio base station including:
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a control unit; means for selectively connecting the control unit to the mobile switching center by standard landline telephone signalling, whereby a communication path is established between the cellular radio base station and the mobile switching center; and means for communicating control information from the control unit to the mobile switching center over the established communication path. - View Dependent Claims (16, 17)
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18. In a cellular mobile telephone system incorporating a switching office of a common carrier telephone system, a method of communicating information between a cellular radio base station and a mobile switching center, comprising the steps of:
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detecting a signal indicating that the switching office is prepared to receive a call; selectively establishing a data link between the mobile switching center and the cellular radio base station by dialing up a telephone connection through the switching office using standard landline telephone signalling; and communicating control information over the established data link. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification