Method and apparatus for automatic adaptation of communications systems to regional spectrum variations

• US 6,556,825 B1
• Filed: 02/08/2000
• Issued: 04/29/2003
• Est. Priority Date: 02/08/2000
• Status: Expired due to Term

• Current Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Mansfield, Carl
• Primary Examiner(s): Le, Thanh Cong
• Assistant Examiner(s): Nguyen, Thuan T.
• Application Number:
  US09/499,896
• Time in Patent Office: 1,176 Days
• Field of Search: 455/62, 455/422, 455/426, 455/446, 455/448, 455/449, 455/454, 455/90, 455/575, 455/95
• US Class Current: 455/426.1
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method of configuring an RF transceiver to receive a geographic-region specific message within a RF signal from a communications network, includes detecting the geographic-region specific message in a first RF transceiver operating in a first RF frequency spectrum; associating the detected geographic-region specific RF signal with a geographic region; generating a configuration command signal for the geographic region; and configuring a second RF transceiver to receive and transmit RF signals in a second RF frequency spectrum particular to the geographic region from the configuration command signal. A system for configuring an RF transceiver for use with a communications network, wherein the network includes transmitters which transmit a geographic-region specific message unique to the geographic region in which the transmitter is located, includes a mobile appliance having plural RF transceivers therein, including a first RF transceiver operating in a first RF frequency spectrum and a second RF transceiver operating in a second RF frequency spectrum, wherein the first RF transceiver receives the geographic-region specific message from a transmitter; a configuration mechanism for receiving the geographic-region specific message from the first transceiver, generating a configuration command signal, and transmitting the configuration command signal to the second RF transceiver; wherein the second RF transceiver, upon receipt of the configuration command signal, changes an associated RF configuration to operate in the second RF frequency spectrum associated with the geographic region.

Claims

1. A method of configuring an RF transceiver in a multi-spectrum communications appliance moving between geographic regions to operate in a geographic-region specific ISM frequency from a received geographic-region specific message within a RF signal from a communications network, comprising:

detecting the geographic-region specific message in a first RF transceiver operating in a first RF frequency spectrum;

associating the detected geographic-region specific RF signal with a geographic region;

generating a configuration command signal for the geographic region; and

configuring a second RF transceiver in the communications appliance to receive and transmit RF signals in a second RF frequency spectrum particular to the geographic region from the configuration command signal.

2. The method of claim 1 wherein said associating includes searching a look-up table for a geographic region.

3. The method of claim 1 which includes performing said associating and said generating in the first RF transceiver.

4. A system for configuring a multi-spectrum RF transceiver for use with a communications network, wherein the network includes transmitters which transmit a geographic-region specific message unique to the geographic region in which the transmitter is located, the system comprising:

a mobile appliance having plural RF transceivers therein, including a first RF transceiver operating in a cellular frequency spectrum and a second RF transceiver operating in a ISM frequency spectrum, wherein said first RF transceiver receives the geographic-region specific message from a transmitter;

configurations means for receiving the geographic-region specific message from said first transceiver, generating a configuration command signal, and transmitting said configuration command signal to said second RF transceiver;

wherein said second RF transceiver, upon receipt of said configuration command signal, changes an associated RF configuration to operate in the ISM frequency spectrum associated with the geographic region.

5. The system of claim 4 wherein said configuration means is located in said first RF transceiver.

6. The system of claim 4 which further includes a host platform, and wherein said configuration means is located in said host platform.

7. The system of claim 6 wherein said first transceiver, said second transceiver and said host platform are located in a single, multi-frequency transceiver.

8. The system of claim 4 wherein said configuration means includes a look-up table for associating a geographic-region specific message with a geographic region.

9. The system of claim 4 wherein said first transceiver and said second transceiver are located in a single, multi-band transceiver.

10. The system of claim 4 which includes an antenna for said first transceiver and which further includes another antenna for said second transceiver.

11. The system of claim 4 which includes a single antenna which is operably connected to said first transceiver and to said second transceiver.

12. A method of configuring an RF transceiver in a multi-spectrum communications appliance moving between geographic regions to operate in a geographic-region specific ISM frequency from a received geographic-region specific message within a RF signal from a communications network, comprising:

detecting the geographic-region specific message in a first RF transceiver operating in a cellular RF frequency spectrum;

associating the detected geographic-region specific RF signal with a geographic region;

generating a configuration command signal for the geographic region; and

configuring a second RF transceiver in the communications appliance to receive and transmit RF signals in a ISM frequency spectrum particular to the geographic region from the configuration command signal.

13. The method of claim 12 wherein said associating includes searching a look-up table for a geographic region.

14. The method of claim 12 which includes performing said associating and said generating in the first RF transceiver.