Communication system with adaptive handover controller and method of operation thereof

1. A method of operation of a communication system comprising:

estimating a channel including calculating a delay spread of a current signal;

calculating a predicted signal within the channel;

evaluating a prediction accuracy of the predicted signal; and

adjusting a handoff parameter with a control unit when the prediction accuracy of the predicted signal is within a threshold range and when the delay spread is greater than a reflection threshold for communicating through a mobile station.

2. The method as claimed in claim 1 wherein:

calculating the predicted signal includes calculating a predicted tap; and

adjusting the handoff parameter includes adjusting the handoff parameter when the prediction accuracy of the predicted tap is less than a prediction error limit.

3. The method as claimed in claim 1 wherein:

calculating the predicted signal includes calculating a Doppler frequency of the current signal; and

adjusting the handoff parameter includes adjusting the handoff parameter when the Doppler frequency is greater than a Doppler threshold.

4. The method as claimed in claim 1 wherein adjusting the handoff parameter includes adjusting a future tap count, a time-to-trigger, a hysteresis level, or a combination thereof for communicating through the mobile station.

5. The method as claimed in claim 1 further comprising:

calculating a location information; and

wherein:

calculating the predicted signal includes calculating the predicted signal based on the location information.

6. The method as claimed in claim 1 further comprising:

receiving the current signal;

wherein:

evaluating the prediction accuracy of the predicted signal includes calculating a difference between the current signal and the predicted signal.

7. The method as claimed in claim 1 further comprising:

receiving the current signal;

filtering the current signal; and

adjusting a filter-coefficient when the prediction accuracy of the predicted signal is outside the threshold range.

8. The method as claimed in claim 1 further comprising transferring a communication link through a hysteresis-based method including an upper and a lower limit.

9. The method as claimed in claim 1 further comprising transferring a communication link through an adaptive method.

10. The method as claimed in claim 1 wherein:

estimating the channel includes estimating a designated tap within a channel;

calculating the predicted signal includes calculating a predicted tap;

evaluating the prediction accuracy includes calculating a difference between the predicted tap and the designated tap; and

adjusting the handoff parameter includes adjusting the handoff parameter when the difference is less than a prediction error limit for communicating through a mobile station.

11. The method as claimed in claim 10 wherein:

estimating the designated tap includes estimating a current reference-signal-received-power;

calculating the predicted tap includes calculating a base reference-signal-received-power, a candidate reference-signal-received-power, or a combination thereof; and

calculating the difference includes calculating the difference between the current reference-signal-received-power and the base reference-signal-received-power, the difference between the current reference-signal-received-power and the candidate reference-signal-received-power, or combination thereof.

12. The method as claimed in claim 10 wherein calculating the predicted tap includes calculating an adaptive-coefficient.

13. A method of operation of a communication system comprising:

estimating a channel including calculating a delay spread of a current signal;

calculating a Doppler frequency of the current signal within the channel;

evaluating a prediction accuracy of a predicted signal with the delay spread and the Doppler frequency; and

adjusting a handoff parameter with a control unit when the delay spread is greater than a reflection threshold and the Doppler frequency is greater than a Doppler threshold for communicating through the mobile station.

14. The method as claimed in claim 13 wherein:

calculating the Doppler frequency includes calculating a candidate shift relative to a candidate station and a base shift relative to a serving station; and

evaluating the prediction accuracy of the predicted signal includes comparing the candidate shift and the base shift.

15. A communication system comprising:

a communication unit configured to communicate a current signal; and

a control unit, coupled to the communication unit, configured to:

estimate a channel including calculating a delay spread of the current signal;

calculate a predicted signal within the channel;

evaluate the prediction accuracy of the predicted signal; and

adjust a handoff parameter when the prediction accuracy of the predicted signal is within a threshold range and when the delay spread is greater than a reflection threshold for communicating through a mobile station.

16. The system as claimed in claim 15 wherein the control unit is configured to:

calculate a predicted tap; and

adjust the handoff parameter when the prediction accuracy of the predicted tap is less than a prediction error limit.

17. The system as claimed in claim 15 wherein the control unit is configured to:

calculate a Doppler frequency of the current signal; and

adjust the handoff parameter when the Doppler frequency is greater than a Doppler threshold.

18. The system as claimed in claim 15 wherein the control unit is configured to adjust a future tap count, a time-to-trigger, a hysteresis level, or a combination thereof for communicating through the mobile station.

19. The system as claimed in claim 15 wherein the control unit is configured to:

calculate a location information; and

calculate the predicted signal based on the location information.

20. The system as claimed in claim 15 wherein:

the communication unit is configured to receive the current signal; and

the control unit is configured to calculate a difference between the current signal and the predicted signal.

21. The system as claimed in claim 15 wherein:

the communication is configured to receive the current signal; and

the control unit is configured to:

filter the current signal; and

adjust a filter-coefficient when the prediction accuracy of the predicted signal is outside the threshold range.

22. The system as claimed in claim 15 wherein the communication unit is configured to transfer a communication link through a hysteresis-based method including an upper and a lower limit.

23. The system as claimed in claim 15 wherein the communication unit is configured to transfer a communication link through an adaptive method.

24. The system as claimed in claim 15 wherein the control unit is configured to:

estimate a designated tap within a channel;

a calculate a predicted tap;

calculate a difference between the predicted tap and the designated tap; and

adjust a handoff parameter when the difference is less than a prediction error limit for communicating through a mobile station.

25. The system as claimed in claim 24 wherein the control unit configured to:

estimate a current reference-signal-received-power;

calculate a base reference-signal-received-power, a candidate reference-signal-received-power, or a combination thereof; and

calculate the difference between the current reference-signal-received-power and the base reference-signal-received-power, the difference between the current reference-signal-received-power and the candidate reference-signal-received-power, or combination thereof.

26. The system as claimed in claim 24 wherein the control unit is configured to calculate an adaptive-coefficient.

27. The system as claimed in claim 15 wherein the control unit is configured to:

calculate a Doppler frequency of the current signal within the channel;

evaluate the prediction accuracy of the predicted signal with the delay spread and the Doppler frequency; and

adjust a handoff parameter when the Doppler frequency is greater than a Doppler threshold for communicating through the mobile station.

28. The system as claimed in claim 27 wherein the control unit is configured to:

calculate a candidate shift relative to a candidate station and a base shift relative to a serving station; and

compare the candidate shift and the base shift.