System and method for connection of cellular base stations to a mobile switching center using dial up telephone circuits

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 having a unique telephone address, said cellular radio base station including:

• means for connecting at least one of the transceivers to a standard telephone line;
• means for communicating to the mobile switching center signalling messages from mobile subscribers;
• and
• means for connecting the cellular radio base station transceiver to the mobile switching center by standard landline telephone signalling corresponding to said unique telephone address, the connection to the mobile switching center being established independent of the signalling messages from the mobile subscribers, whereby a communication path is established between the cellular radio base station and the mobile switching center.

In a cellular mobile telephone system incorporating a switching office of a common carrier telephone system, a method of connecting cellular mobile telephones in the system to one another and to telephones outside the system by way of the switching office, the method comprising the steps of:

• receiving and decoding at a cellular radio base station a radio frequency (RF) signal consisting of an origination request and dialed telephone number from the mobile telephone;
• transmitting a control message from the cellular radio base station to a mobile switching center over a data line, the message including data identifying the mobile telephone that is requesting service and the dialed telephone number;
• transmitting a return message from the mobile switching center to the cellular radio base station, the message containing information for:
• 1) directing the cellular radio base station to select a designated transceiver and frequency for providing service to the mobile telephone, and
• 2) directing the cellular radio base station to send a message to the mobile telephone instructing it to use the designated radio frequency for the call;
• establishing a voice line between the mobile switching center and the cellular radio base station by dialing up a telephone connection through the switching office of the common carrier network;
• connecting the established voice line to the designated transceiver at the cellular radio base station;
• and
• establishing a connection to a telephone device assigned to the dialed telephone number requested by the mobile telephone.

In a cellular mobile telephone system incorporating a switching office of a common carrier telephone system, a method of connecting cellular mobile telephones in the system to one another and to telephones outside the system by way of the switching office, the method comprising the steps of:

• receiving and decoding at a cellular radio base station a radio frequency (RF) signal consisting of an origination request and dialed telephone number from the mobile telephone;
• transmitting a control message from the cellular radio base station to a mobile switching center over a data line, the message including data identifying the mobile telephone that is requesting service and the dialed telephone number;
• transmitting a return message from the mobile switching center to the cellular radio base station, the message containing information for:
• 1) directing the cellular radio base station to select a designated transceiver and frequency for providing service to the mobile telephone, and
• 2) directing the cellular radio base station to send a message to the mobile telephone instructing it to use the designated radio frequency for the call;
• determining whether an existing voice line is already established and idle, and
• 1) if an existing voice line is established and idle, utilizing the existing voice line for connecting the cellular radio base station to the mobile switching center, or
• 2) if an existing voice line is not established and idle, establishing a voice line between the mobile switching center and the cellular radio base station by dialing up a telephone connection through the switching office of the common carrier network;
• connecting the established voice line to the designated transceiver at the cellular radio base station;
• and
• establishing a connection to a telephone device associated with the dialed telephone number requested by the mobile telephone.

In a cellular mobile telephone system incorporating a switching office of a common carrier telephone system, a method of connecting cellular mobile telephones in the system to one another and to telephones outside the system by way of the switching office, the method comprising the steps of:

• receiving an incoming call at the mobile switching center requesting to connect the caller with a cellular mobile telephone;
• determining whether the requested cellular mobile telephone is active within the system, and
• a) if not active, notifying the caller that the mobile phone is not active within the system and disconnecting the caller at the mobile switching center, or
• b) if active:
• 1) transmitting a message from the mobile switching center to the cellular radio base station, the message containing information for:
• a) directing the cellular radio base station to select a designated transceiver and frequency for providing service to the mobile telephone, and
• b) directing the cellular radio base station to send a message to the mobile telephone instructing it to use the designated radio frequency for the call;
• 2) establishing a voice line between the mobile switching center and the cellular radio base station by dialing up a telephone connection through the switching office of the common carrier network;
• 3) connecting the established voice line to the designated transceiver at the cellular radio base station;
• 4) switching the incoming call at the mobile switching center to the established voice line thereby providing a path from the incoming call to the mobile telephone.

In a cellular mobile telephone system incorporating a switching office of a common carrier telephone system, a method of connecting cellular mobile telephones in the system to one another and to telephones outside the system by way of the switching office, the method comprising the steps of:

• receiving an incoming call at the mobile switching center requesting to connect the caller with a cellular mobile telephone;
• determining whether the requested cellular mobile telephone is active within the system, and
• a) if not active, notifying the caller that the mobile phone is not active within the system and disconnecting the caller at the mobile switching center, or
• b) if active:
• 1) transmitting a message from the mobile switching center to the cellular radio base station, the message containing information for:
• a) directing the cellular radio base station to select a designated transceiver and frequency for providing service to the mobile telephone, and
• b) directing the cellular radio base station to send a message to the mobile telephone instructing it to use the designated radio frequency for the call;
• 2) determining whether an existing voice line is already established and idle, and
• a) if an existing voice line is established and idle, utilizing the existing voice line for connecting the cellular radio base station to the mobile switching center, or
• b) if an existing voice line is not established and idle, establishing a voice line between the mobile switching center and the cellular radio base station by dialing up a telephone connection through the switching office of the common carrier network;
• 3) connecting the established voice line to the designated transceiver at the cellular radio base station;
• 4) switching the incoming call at the mobile switching center to the established voice line thereby providing a path from the incoming call to the mobile telephone.