Method and apparatus for adapting multi-band ultra-wideband signaling to interference sources

1. A method of operation in a multi-frequency band system in the presence of an interference, the method comprising:

receiving signaling in a plurality of wideband frequency sub-bands, each wideband frequency sub-band having a different center frequency, wherein a bandwidth of each wideband frequency sub-band is at least 2 percent of a center frequency of the wideband frequency sub-band;

detecting an interfering signal having signal energy in a portion of a respective sub-band of the wideband frequency sub-bands;

deciding to discontinue use of the respective sub-band; and

instructing a transmitting device transmitting the signaling to transmit subsequent signaling in any except the respective sub-band of the plurality of wideband frequency sub-bands.

2. The method of claim 1 wherein the receiving step comprises:

receiving the signaling in the plurality of the wideband frequency sub-bands, wherein a symbol is encoded in the time dependence of the signaling across the plurality of the wideband frequency sub-bands, the symbol corresponding to data.

3. The method of claim 1 wherein the detecting step comprises:

estimating an error in signaling received in the respective sub-band; and

declaring the narrowband interfering signal in the respective sub-band based on the error.

4. The method of claim 1 wherein the detecting step comprises:

tracking symbol errors occurring in the respective sub-band; and

declaring the interfering signal in the respective sub-band based on the symbol errors.

5. The method of claim 4 wherein the detecting step further comprises:

estimating a probability that the symbol errors in the respective sub-band are due to the interfering signal;

wherein the declaring step comprises:

declaring the interfering signal in the respective sub-band based on the probability.

6. The method of claim 1 wherein the detecting step comprises:

determining the presence of excess signal energy within the respective sub-band during a time period when signaling is not to be received in the respective sub-band; and

declaring the narrowband interfering signal in the respective sub-band based on the presence of the excess signal energy.

7. The method of claim 1 wherein the instructing step comprises:

instructing the transmitting device to transmit the subsequent signaling in any sub-band except the respective sub-band of the plurality of wideband frequency sub-bands, replacing the respective sub-band with an additional wideband frequency sub-band.

8. The method of claim 1 wherein the instructing step comprises:

instructing the transmitting device to transmit the subsequent signaling in any sub-band except the respective sub-band of the plurality of wideband frequency sub-bands, the respective sub-band not replaced with an additional sub-band.

9. The method of claim 1 further comprising:

determining that the respective sub-band no longer includes the interfering signal; and

instructing the transmitting device to transmit the subsequent signaling in any sub-band of the plurality of ultra-wideband frequency sub-bands.

10. The method of claim 1 further comprising:

maintaining channel state information including two or more of available sub-bands, sub-bands in use, and interfered sub-bands.

11. The method of claim 10 further comprising:

updating the channel state information in response to the detecting the interference step.

12. The method of claim 11 wherein the instructing the transmitting device step comprises:

transmitting the channel state information having been updated to the transmitting device.

13. The method of claim 10 wherein the channel state information further includes one or more of a modulation type, a coding rate, a data rate and a sub-band bandwidth.

14. The method of claim 1 wherein the instructing the transmitting device step comprises:

transmitting channel state information identifying the respective sub-band as including the interfering signal to the transmitting device in the respective sub-band including the interfering signal.

15. The method of claim 14 wherein the transmitting the channel state information comprises:

transmitting a first signal in the respective sub-band including the interfering signal during a first symbol period;

transmitting a second signal in the respective sub-band including the interfering signal during a second symbol period; and

transmitting a third signal in an available sub-band during the second symbol period;

wherein the transmitting device is able to determine which sub-bands of the plurality of wideband frequency sub-bands to transmit the subsequent signaling in.

16. The method of claim 1 wherein the instructing the transmitting device step comprises:

transmitting channel state information to the transmitting device, the channel state information comprising available sub-bands out of the plurality of wideband frequency sub-bands.

17. The method of claim 1 wherein the instructing the transmitting device step comprises:

transmitting channel state information to the transmitting device, the channel state information comprising sub-bands in use out of the plurality of wideband frequency sub-bands.

18. The method of claim 1 wherein the instructing the transmitting device step comprises:

transmitting channel state information to the transmitting device, the channel state information comprising interfered sub-bands out of the plurality of wideband frequency sub-bands.

19. The method of claim 1 wherein the receiving the signaling comprises:

receiving the signaling in a plurality of ultra-wideband frequency sub-bands, wherein the bandwidth of each ultra-wideband frequency sub-band is at least 20 percent of the center frequency of the ultra-wideband frequency sub-band.

20. A multi-frequency band receiver for operating in the presence of an interference, the receiver comprising:

a signal detector configured to receive signaling in a plurality of wideband frequency sub-bands, each wideband frequency sub-band having a different center frequency, wherein a bandwidth of each wideband frequency sub-band is at least 2 percent of a center frequency of the wideband frequency sub-band;

an interference detector coupled to the signal detector and configured to detect an interfering signal having signal energy in a portion of a respective sub-band of the wideband frequency sub-bands; and

an interference compensator coupled to the interference detector and configured to decide to discontinue use of the respective sub-band;

the interference compensator configured to determine that subsequent signaling is to be transmitted by a transmitting device in any sub-band except the respective sub-band of the plurality of wideband frequency sub-bands.

21. The receiver of claim 20 wherein the signal detector is configured to receive the signaling in a plurality of ultra-wideband frequency sub-bands, wherein a bandwidth of each wideband frequency sub-band is at least 20 percent of a center frequency of the ultra-wideband frequency sub-band.

22. The receiver of claim 20 wherein the signal detector is configured to receive the signaling, wherein a symbol is encoded in the time dependence of the signaling across the plurality of the wideband frequency sub-bands, the symbol corresponding to data.

23. A method of communicating channel state information to a transmitting device, the method comprising:

obtaining channel configuration information, the channel configuration information indicating that a respective sub-band of a plurality of wideband frequency sub-bands includes an interfering signal having signal energy in a portion of a respective sub-band, wherein signaling occurs over the plurality of wideband frequency sub-bands between a transmitting device and a receiving device, wherein each wideband frequency sub-band has a different center frequency, wherein a bandwidth of each wideband frequency sub-band is at least 2 percent of a center frequency of the wideband frequency sub-band;

transmitting a first signal in the respective sub-band including the interfering signal during a first symbol period to the transmitting device; transmitting a second signal in the respective sub-band including the interfering signal during a second symbol period to the transmitting device; and

transmitting a third signal in an available sub-band not presently being used for the signaling during the second symbol period to the transmitting device;

wherein the transmitting device is able to determine which sub-bands of the plurality of wideband frequency sub-bands to transmit the subsequent signaling in, based upon receipt of the first signal, the second signal and the third signal.

24. The method of claim 1 wherein the signaling comprises at least one symbol distributed over two or more of the plurality of wideband frequency sub-bands.

25. The method of claim 1 wherein the signaling in the plurality of wideband frequency sub-bands is from the transmitting device and together represents a communication.

26. The receiver of claim 20 wherein the signaling comprises at least one symbol distributed over two or more of the plurality of wideband frequency sub-bands.

27. The receiver of claim 20 wherein the signaling in the plurality of wideband frequency sub-bands is from the transmitting device and together represents a communication.

28. The method of claim 23 wherein the subsequent signaling comprises at least one symbol is distributed over at least two of the plurality of wideband frequency sub-bands.

29. The method of claim 23 wherein the subsequent signaling comprises signaling in the plurality of wideband frequency sub-bands from the transmitting device and together represents a communication.