METHOD AND SYSTEM FOR MITIGATING CO-CHANNEL INTERFERENCE

• US 20090286488A1
• Filed: 07/24/2009
• Published: 11/19/2009
• Est. Priority Date: 07/08/2005
• Status: Active Grant

• Current Assignee: Telcom Ventures LLC
• Original Assignee: Telcom Ventures LLC
• Inventors: Olexa, George R., Singh, Rajendra
• Granted Patent: US 8,406,701 B2
• Time in Patent Office: Days
• US Class Current: 455/73
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04B 7/18515 Transmission equipment in satellites or space-based relays
• CPC Class Codes: H04W 16/04 Traffic adaptive resource partitioning
• CPC Class Codes: H04W 16/12 Fixed resource partitioning

Abstract

A method of communicating data between a first transceiver and any of a plurality of second transceivers, wherein areas serviced by each of the plurality of second transceivers either overlap or are adjacent. The method comprises operating the first transceiver and the plurality of second transceivers in an overlapping frequency range. Each of the plurality of second transceivers operates in a time period different from a time period of another of the plurality of second transceivers.

Claims

1. A method of communicating data between a first terrestrial-based device and one or more of a plurality of second devices, said plurality of second devices including one or more terrestrial-based devices, wherein areas wirelessly serviced by each of said plurality of second devices either overlap or are adjacent, comprising:

operating said first terrestrial-based device and said plurality of second devices in an overlapping frequency range, said plurality of second devices including one or more terrestrial-based devices and each of said plurality of second devices operating in a time period different from a time period of another of said plurality of second devices, said first terrestrial-based device being configured to wirelessly communicate data with one or more of said plurality of second devices.

2. The method according to claim 1, comprising commonly controlling communications through each one of said plurality of second devices.

3. The method according to claim 1, wherein the time period during which each of said plurality of second devices operates and the time period during which another of said plurality of second devices operates are separated by a guard time interval during which neither one operates.

4. The method according to claim 3, wherein said guard time interval is selected to minimize or substantially reduce interference between data signals transmitted or received by said first terrestrial-based device in said overlapping or adjacent areas.

5. The method according to claim 3, wherein said guard time interval has a maximum value corresponding to a maximum time delay a signal takes to propagate a distance between each of the plurality of second devices to a corresponding serviced area and a minimum value corresponding to hardware switch-over time.

6. The method according to claim 1, wherein:

the first terrestrial-based device monitors signal strength of a received data signal from one of said plurality of second devices and compares the signal strength of the received data signal to strength of data signals received from surrounding areas serviced by remaining second devices from said plurality of second devices, and

the first terrestrial-based device locks on a strongest data signal.

7. The method according to claim 1, wherein the first terrestrial-based device integrates identical data signals received from each of the plurality of second devices.

8. The method according to claim 1, wherein one of said plurality of second devices is a satellite and said first terrestrial-based device is configured to receive a data signal from said satellite and from remaining second devices from said plurality of second devices.

9. A system for communicating data signals in a network, comprising:

a first terrestrial-based device; and

a plurality of second devices configured to communicate wirelessly with said first terrestrial-based device, said plurality of second devices being configured to service overlapping or adjacent areas, and said plurality of second devices including one or more terrestrial-based devices and each of said plurality of second devices being configured to operate in a time period different from a time period of another of said plurality of second devices,

wherein said first terrestrial-based device and said plurality of second devices operate in an overlapping frequency range, said first terrestrial-based device being configured to communicate with one or more of said plurality of second devices.

10. The system according to claim 9, wherein said first terrestrial-based device includes a transceiver and each of said plurality of second devices includes a transceiver.

11. The system according to claim 9, wherein said plurality of second devices are configured to service said overlapping or adjacent areas by providing a plurality of data signals to said areas, said plurality of data signals provided to said areas being identical.

12. The system according to claim 9, wherein a time period during which each of said plurality of second devices operates and a time period during which another of said plurality of second devices operates are separated by a guard time interval during which neither one operates.

13. The system according to claim 12, wherein the guard time interval has a maximum value corresponding to a time delay a signal takes to propagate a distance between each of the plurality of second devices to a corresponding serviced area and a minimum value corresponding to a hardware switch over time.

14. The system according to claim 9, wherein:

the first terrestrial-based device is configured to monitor signal strength of a received signal from one of said plurality of second devices and to compare the signal strength of the received signal to strength of signals received from surrounding areas serviced by remaining second devices from said plurality of second devices, and

the first terrestrial-based device locks on a strongest signal.

15. The system according to claim 9, wherein the first terrestrial-based device is configured to integrate identical signals received from each of the plurality of second devices.

16. The system according to claim 9, wherein each second device from said plurality of second devices is configured to monitor signal strength of a received signal from said first terrestrial-based device and configured to compare the signal strength of the received signal to strengths of signals received by remaining second devices from said plurality of second devices from said first terrestrial-based device.

17. The system according to claim 9, wherein one of said plurality of second devices is a satellite and said first terrestrial-based device is configured to receive a signal from said satellite and from remaining second devices from said plurality of second devices.

18. The system according to claim 17, wherein the first terrestrial-based device is configured to integrate identical signals received from the satellite and each of the remaining second devices from the plurality of second devices.

19. The system according to claim 9, further comprising a controller configured to process signals and communicate the signals to said plurality of second devices.

20. The system according to claim 19, further comprising a multiplexer-demultiplexer distributor in communication with the controller, said multiplexer-demultiplexer distributor being configured to distribute the signals to said plurality of second devices.

21. The system according to claim 20, further comprising an uplink system in communication with the multiplexer-demultiplexer distributor, wherein the uplink system is configured to send the signal received from the multiplexer-demultiplexer distributor to the satellite.

22. The system according to claim 21, wherein the satellite is configured to communicated with at least one of said plurality of second devices, with said first terrestrial-based device, or both.

23. A terrestrial-based device for communicating data signals in a network, comprising:

a terrestrial-based transceiver configured to wirelessly communicate with one or more base stations and/or satellites from a plurality of base stations and/or satellites that are configured to wirelessly service overlapping or adjacent areas, each base station and/or satellite being configured to operate in a time period different from a time period of another base station and/or satellite,

wherein the terrestrial-based transceiver is configured to communicate with a base station or satellite from the plurality of base stations and/or satellites during the time period in which that base station or satellite operates, and

wherein the terrestrial-based transceiver and the plurality of base stations and/or satellites operate in an overlapping frequency range.

24. The terrestrial-based device of claim 23, wherein a time period at which a base station or satellite from the plurality of base stations and/or satellites operates is unique and separated from an adjacent time period at which another base station or satellite from the plurality of base stations and/or satellites operates by a guard time interval during which no base station or satellite operates.

25. A terrestrial-based device for communicating data signals in a network, comprising:

a terrestrial-based transceiver configured to wirelessly communicate with one or more base stations and/or satellites from a plurality of base stations and/or satellites that are configured to wirelessly service overlapping or adjacent areas, each base station and/or satellite being configured to operate in a time period different from a time period of another base station and/or satellite, the terrestrial-based transceiver being configured to operate in an overlapping frequency range with the plurality of base stations and/or satellites,

wherein each time period is separated from an adjacent time period by a guard time interval during which no base station or satellite operates, the guard time interval having a maximum duration corresponding to a maximum time delay a signal takes to propagate a distance between each base station and/or satellite to associated serviced areas and a minimum duration corresponding to hardware switch-over time, and

wherein the terrestrial-based transceiver is configured to monitor signal strength of a received data signal from one of the base stations and/or satellites and compares the signal strength of the received data signal to strength of data signals received from surrounding areas serviced by remaining base stations and/or satellites from the plurality of base stations and/or satellites and selects the base station or satellite with the strongest signal for communication.

26. A system for communicating data signals in a network, comprising:

a base station configured to wirelessly communicate with a terrestrial-based device, the base station being one of a plurality of base stations and/or satellites configured to wirelessly service overlapping or adjacent areas, the base station being configured to operate in a time period different from a time period of another base station and/or satellite from the plurality of base stations and/or satellites, the base station being configured to operate in an overlapping frequency range with the terrestrial-based device,

wherein the time period at which the base station operates is separated from an adjacent time period associated with another base station and/or satellite from the plurality of base stations and/or satellites by a guard time interval during which neither the base station nor another base station and/or satellite operates, the guard time interval having a maximum duration corresponding to a maximum time delay a signal takes to propagate a distance between each base station and/or satellite from the plurality of base stations and/or satellites to associated serviced areas and a minimum duration corresponding to hardware switch-over time,

wherein the base station is configured to monitor data signal strength of a received data signal from the terrestrial-based device and to compare the data signal strength of the received data signal to strength of signals received by remaining base stations and/or satellites from the plurality of base stations and/or satellites from said terrestrial-based device, and

wherein the base station is configured to take on communication with the terrestrial-based device when the base station is the base station and/or satellite that receives the strongest data signal from the terrestrial-based device.