TECHNIQUES FOR MOBILITY INDUCED ERROR CORRECTION

• US 20090036144A1
• Filed: 07/31/2007
• Published: 02/05/2009
• Est. Priority Date: 07/31/2007
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Wong, Wendy C., Cox, Timothy F.
• Application Number:
  US11/830,907
• Publication Number:
  US 20090036144A1
• Time in Patent Office: Days
• US Class Current: 455/456.300
• CPC Class Codes: H04B 7/01 Reducing phase shift
• CPC Class Codes: H04L 1/0001 Systems modifying transmission characteristics according to link quality, e.g. power backoff adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04
• CPC Class Codes: H04W 60/005 Multiple registrations, e.g. multihoming

Abstract

Techniques for mobility induced error correction are described. An apparatus may comprise a mobile device having a frequency correction module arranged to determine a frequency shift for a communication channel caused by movement of the mobile device relative to a fixed device, and generate a frequency correction value to compensate for the frequency shift. Other embodiments are described and claimed.

Claims

1. An apparatus comprising a mobile device having a frequency correction module arranged to determine a frequency shift for a communication channel caused by movement of the mobile device relative to a fixed device, and generate a frequency correction value to compensate for the frequency shift.

2. The apparatus of claim 1, the frequency correction module having a position module to generate mobile device position information for the mobile device.

3. The apparatus of claim 1, the frequency correction module having a velocity module to receive fixed device position information for the fixed device and mobile device position information for the mobile device, and determine a relative velocity for the mobile device using the fixed device position information and the mobile device position information.

4. The apparatus of claim 1, the frequency correction module having a scaling module to receive a relative velocity value, and generate the frequency correction value.

5. The apparatus of claim 1, comprising a radio to connect to the frequency correction module, the radio to communicate information from the mobile device to the fixed device over a transmit frequency produced by subtracting the frequency correction value from a receive frequency for the communication channel.

6. The apparatus of claim 1, comprising a radio to connect to the frequency correction module, the radio to communicate information from the mobile device to the fixed device over a transmit frequency produced by subtracting two times the frequency correction value from a receive frequency for the communication channel for a time division duplexing system.

7. The apparatus of claim 1, comprising a radio to connect to the frequency correction module, the radio to communicate information from the mobile device to the fixed device over a transmit frequency produced by subtracting

8. A system comprising a mobile device having:

an omni-directional antenna;

a transceiver to connect to the omni-directional antenna, the transceiver arranged to communicate information over a communication channel to a fixed device; and

a frequency correction module to connect to the transceiver, the frequency correction module arranged to determine a frequency shift for the communication channel caused by movement of the mobile device relative to the fixed device, and generate a frequency correction value to compensate for the frequency shift.

9. The system of claim 8, the fixed device comprising a base station for a cellular radiotelephone system.

10. The system of claim 8, the fixed device having a position module to provide fixed device position information for the fixed device.

11. The system of claim 8, the frequency correction module having a position module to generate mobile device position information for the mobile device.

12. The system of claim 8, the frequency correction module having a velocity module to receive fixed device position information for the fixed device and mobile device position information for the mobile device, and determine a relative velocity for the mobile device using the fixed device position information and the mobile device position information.

13. The system of claim 8, the frequency correction module having a scaling module to receive a relative velocity value, and generate the frequency correction value.

14. The system of claim 8, the transceiver to communicate information from the mobile device to the fixed device over a transmit frequency produced by subtracting the frequency correction value from a receive frequency for the communication channel.

15. The system of claim 8, the transceiver to communicate information from the mobile device to the fixed device over a transmit frequency produced by subtracting two times the frequency correction value from a receive frequency for the communication channel for a time division duplexing system.

16. The system of claim 8, the transceiver to communicate information from the mobile device to the fixed device over a transmit frequency produced by subtracting

17. A method, comprising:

receiving fixed device position information for a fixed device by a mobile device;

receiving mobile device position information for the mobile device;

determining a frequency shift for a communication channel between the fixed device and the mobile device using the fixed device position information and the mobile device position information; and

generating a frequency correction value based on the frequency shift.

18. The method of claim 17, comprising determining a relative velocity for the mobile device using the fixed device position information and the mobile device position information to determine the frequency shift.

19. The method of claim 17, comprising producing a transmit frequency for the mobile device by subtracting the frequency correction value from a receive frequency for the communication channel.

20. The method of claim 17, comprising producing a transmit frequency for the mobile device by subtracting two times the frequency correction value from a receive frequency for the communication channel for a time division duplexing system.

21. The method of claim 17, comprising producing a transmit frequency for the mobile device by subtracting

22. The method of claim 17, comprising sending information from the mobile device to the fixed device over the communication channel in accordance with a frequency correction value to compensate for the frequency shift.

23. An article comprising a machine-readable storage medium containing instructions that if executed enable a system to:

determine a frequency shift for a communication channel caused by movement of a mobile device relative to a fixed device; and

generate a frequency correction value to compensate for the frequency shift.

24. The article of claim 23, further comprising instructions that if executed enable the system to generate mobile device position information for the mobile device.

25. The article of claim 23, further comprising instructions that if executed enable the system to receive fixed device position information for the fixed device and mobile device position information for the mobile device, and determine a relative velocity for the mobile device using the fixed device position information and the mobile device position information.

26. The article of claim 23, further comprising instructions that if executed enable the system to:

receive a relative velocity value; and

generate the frequency correction value.

27. The article of claim 23, further comprising instructions that if executed enable the system to communicate information from the mobile device to the fixed device over the communication channel using the frequency correction value.

28. The article of claim 23, further comprising instructions that if executed enable the system to generate the mobile device position information for the mobile device using global positioning system information or triangulation information.

29. The article of claim 23, further comprising instructions that if executed enable the system to produce a transmit frequency for the mobile device by subtracting two times the frequency correction value from a receive frequency for the communication channel for a time division duplexing system.

30. The article of claim 23, further comprising instructions that if executed enable the system to produce a transmit frequency for the mobile device by subtracting