Cordless cellular system
First Claim
1. A method of controlling a base station, the base station coupled to a cellular network and a public switched telephone network (PSTN) to support a dual mode mobile telephone to provide both cellular service and cordless landline service, wherein the method of controlling the base station comprises the steps of:
- initially registering with the cellular network to receive operational information including base station operating frequencies and base station operating power levels that support user-selected service levels;
registering the mobile telephone to receive telephone service through the base station upon being detected by the mobile telephone, wherein the mobile telephone, while operating in a cellular mode and communicating via the cellular network, detects the base station using the base station operating power levels to recognize locations that are in proximity to the base station and searches for the base station using stored base station identification information when in proximity to the base station, wherein the mobile telephone automatically de-registers with the cellular network upon detecting the base station;
receiving confirmation that the mobile telephone has automatically switched from providing cellular service to providing cordless landline service;
providing a call forwarding update message to the cellular network upon receiving the confirmation, the message requesting re-routing of calls addressed to the mobile telephone from the cellular network to the PSTN telephone number;
receiving a forwarded call addressed to the mobile telephone;
determining a status of the mobile telephone in response to the received call;
selecting a call information message in response to the status;
sending the call information message to the mobile telephone; and
transferring the forwarded call to the mobile telephone via a wireless link in response to receipt of a user response to the call information message.
5 Assignments
0 Petitions
Accused Products
Abstract
A mobile station communicates with both a cellular network, by which it is assigned a mobile identification number, and to a cordless cellular base station utilizing the same cellular frequency range and communications protocol. The cordless cellular base station is preferably connected to a public switched telephone network and is assigned a landline number. The cordless cellular base station acts as a conduit between the mobile station and the public switched telephone network. When the mobile station comes within range of a cordless cellular base station, it deregisters automatically from the cellular network and register with the cordless cellular base station. Once the mobile station is communicating with the cordless cellular base station, the cordless cellular base station communicates with the cellular network to instruct the cellular network to route all calls for mobile identification number to the cordless cellular base station'"'"'s landline number. In addition, all calls placed on the mobile station are sent through the cordless cellular base station to the public switched telephone network. When the mobile station severs contact with the cordless cellular base station, the mobile station registers with the regional cellular base station of the regional cellular network. The cordless cellular base station then sends a network forwarding cancellation message to the cellular network to cancel the forwarding of calls for the mobile station'"'"'s identification number. Once the mobile station is registered with the regional cell, calls to the mobile stations identification number are directly routed by the cellular network to the mobile station.
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Citations
8 Claims
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1. A method of controlling a base station, the base station coupled to a cellular network and a public switched telephone network (PSTN) to support a dual mode mobile telephone to provide both cellular service and cordless landline service, wherein the method of controlling the base station comprises the steps of:
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initially registering with the cellular network to receive operational information including base station operating frequencies and base station operating power levels that support user-selected service levels;
registering the mobile telephone to receive telephone service through the base station upon being detected by the mobile telephone, wherein the mobile telephone, while operating in a cellular mode and communicating via the cellular network, detects the base station using the base station operating power levels to recognize locations that are in proximity to the base station and searches for the base station using stored base station identification information when in proximity to the base station, wherein the mobile telephone automatically de-registers with the cellular network upon detecting the base station;
receiving confirmation that the mobile telephone has automatically switched from providing cellular service to providing cordless landline service;
providing a call forwarding update message to the cellular network upon receiving the confirmation, the message requesting re-routing of calls addressed to the mobile telephone from the cellular network to the PSTN telephone number;
receiving a forwarded call addressed to the mobile telephone;
determining a status of the mobile telephone in response to the received call;
selecting a call information message in response to the status;
sending the call information message to the mobile telephone; and
transferring the forwarded call to the mobile telephone via a wireless link in response to receipt of a user response to the call information message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification