Multi-band ultra-wide band communication method and system
The present invention provides ultra-wide band communication systems and methods, including multi-band ultra-wide band communication systems and methods. Methods and systems are provided in which frequency sub-bands of an ultra-wide band spectrum are allocated for signal transmission. An ultra-wide band transmission including the information is sent, including sending a signal over each of the plurality of sub-bands. Methods are further provided in which a first data signal containing information is converted into an encoded signal using an Inverse Fast Fourier Transform. The encoded signal is converted into an encoded ultra-wide band signal that can be pulsed or transmitted using burst symbol cycles. The encoded pulsed ultra-wide band signal is decoded using a Fast Fourier Transform to obtain the information.
1. A method for communicating information, comprising: allocating, for signal transmission, each of a plurality of frequency sub-bands of an ultra-wide band spectrum; sending an ultra-wide band transmission comprising the information over the ultra-wide band spectrum, comprising sending a signal over each of the plurality of sub-bands; and receiving the ultra-wide band transmission comprising the information over the ultra-wide band spectrum, comprising receiving the signals, wherein sending the ultra-wide band signal comprises: converting a first data signal containing information into one or more encoded signals using an Inverse Fast Fourier Transform; and converting the encoded signal into an encoded ultra-wide band signal comprising burst symbol cycles.
2. The method of claim 1 , wherein sending the signals comprises sending a different waveform over each sub-band.
3. The method of claim 1 , wherein sending the signals comprises sending more than one waveform over a single sub-band at a given time.
4. The method of claim 1 , wherein sending the ultra-wide band signal comprises transmitting over only a single one of the sub-bands at a given time.
5. The method of claim 1 wherein sending the ultra-wide band signal comprises switching between sub-bands.
6. The method of claim 5 , wherein the switching is performed after each symbol is transmitted.
7. The method of claim 5 , wherein the switching is performed after several symbols are transmitted.
8. The method of claim 5 , wherein the switching is performed after one or more symbols are transmitted and an OFF period.
9. The method of claim 8 , wherein the OFF period is used to reduce power consumption in the receiver and transmitter.
10. The method of claim 1 , wherein the narrowband signal comprises an OFDM signal with a cyclic prefix.
11. The method of claim 1 , wherein the narrowband signal comprises an OFDM signal with a gap and/or cyclic prefix.
12. The method of claim 1 , comprising performing energy collecting and/or inter carrier interference mitigation by at least one of using parallel receivers, providing a gap between the OFDM symbols, cyclic prefix and using the tail of the symbol generated by multi-path in the channel.
13. A method for communicating information, the method comprising: allocating, for signal transmission, each of a plurality of frequency sub-bands of an ultra-wide band spectrum; sending an ultra-wide band transmission comprising the information over the ultra-wide band spectrum, comprising sending a signal over each of the plurality of sub-bands; and receiving the ultra-wide band transmission comprising the information over the ultra-wide band spectrum, comprising receiving the signals, wherein sending the ultra-wide band signal comprises: convening a first data signal containing information into one or more encoded signals using an Inverse Fast Fourier Transform; and convening the encoded signal into an encoded pulsed ultra-wide band signal.
14. The method of claim 13 , wherein sending the signals comprises sending a different waveform over each sub-band.
15. The method of claim 13 wherein sending the signals comprises sending more than one waveform over a single sub-band at a given time.
16. The method of claim 13 , wherein sending the ultra-wide band signal comprises transmitting over only a single one of the sub-bands at a given time.
17. The method of claim 13 wherein sending the ultra-wide band signal comprises switching between sub-bands in which pulses are transmitted.
18. The method of claim 17 , wherein the switching is performed after each symbol is transmitted.
19. The method of claim 17 , wherein the switching is performed after several symbols are transmitted.
20. The method of claim 17 , wherein the switching is performed after one or more symbols are transmitted and an OFF period.
21. The method of claim 20 , wherein the OFF period is used to reduce power consumption in the receiver and transmitter.
22. The method of claim 13 , wherein the narrowband signal comprises an OFDM signal with a cyclic prefix.
23. The method of claim 13 , wherein the narrowband signal comprises an OFDM signal with a gap and/or cyclic prefix.
24. The method of claim 13 , comprising performing energy collecting and/or inter carrier interference mitigation by at least one of using parallel receivers, providing a gap between the OFDM symbols, cyclic prefix and using the tail of the symbol generated by multi-path in the channel.
25. The method of claim 13 , comprising determining a bandwidth of each of a plurality of bands used by the second signal by a narrow pulse width.