APPARATUS AND METHOD OF PULSE GENERATION FOR ULTRA-WIDEBAND TRANSMISSION

• US 20070242026A1
• Filed: 04/03/2007
• Published: 10/18/2007
• Est. Priority Date: 04/14/2006
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Lee, Chong, Julian, David, Ekbal, Amal
• Application Number:
  US11/696,135
• Publication Number:
  US 20070242026A1
• Time in Patent Office: Days
• US Class Current: 345/100
• CPC Class Codes: H04B 1/7174 Pulse generation in general H04L25/03834
• CPC Class Codes: H04B 2201/71636 Transmitted reference

Abstract

Aspects include methods and apparatuses for generating pulses in an ultra-wideband transmission. For example, some aspects include a method of providing a signal comprising at least one pulse. The method includes generating a first signal, generating at least one pulse based on at least one slope of said first signal, and transmitting said at least one pulse over a wireless channel. Other aspects include apparatus and devices for generating pulses.

Claims

1. A method of providing a signal comprising at least one pulse, comprising:

generating a first signal;

generating at least one pulse based on at least one slope of said first signal; and

transmitting said at least one pulse over a wireless channel.

2. The method of claim 1, wherein generating the first signal comprises generating a pseudo-random sequence.

3. The method of claim 1, wherein generating said first signal comprises generating at least one square wave.

4. The method of claim 1, wherein generating said at least one pulse comprises:

generating a second signal indicative of at least one slope of said first signal; and

generating a third signal comprising said at least one pulse indicative of a slope of said second signal.

5. The method of claim 4, wherein generating said second signal comprises calculating a differential of said first signal.

6. The method of claim 4, wherein generating said third signal comprises calculating a differential of said second signal.

7. The method of claim 4, wherein generating said second signal comprises generating a half-wave pulse.

8. The method of claim 4, wherein generating said third signal comprises generating a full-wave pulse.

9. The method of claim 1, wherein generating at least one pulse based on at least one slope of said first signal comprises generating the at least one pulse to correspond to at least one change in the at least one slope of the first signal.

10. The method of claim 1, wherein said at least one pulse substantially occupies an ultra-wide band.

11. The method of claim 1, wherein said at least one pulse comprises a pulse carrier signal.

12. The method of claim 1, further comprising modulating the at least one pulse with information for transmission.

13. The method of claim 12, wherein modulating the at least one pulse using at least one of pulse position modulation, pulse amplitude modulation, and transmitted reference modulation.

14. An apparatus for providing a signal comprising at least one pulse, comprising:

a first generator configured to generate a first signal;

a second generator configured to generate at least one pulse based on at least one slope of said first signal; and

a transmitter configured to transmit said at least one pulse over a wireless channel.

15. The apparatus of claim 14, wherein said first generator comprises a linear shift register configured to generate a pseudo-random sequence.

16. The apparatus of claim 14, wherein said first generator is configured to generate at least one square wave.

17. The apparatus of claim 14, wherein said second generator comprises:

a first differentiator configured to generate a second signal indicative of at least one slope of said first signal; and

a second differentiator configured to generate a third signal comprising said at least one pulse indicative of a slope of said second signal.

18. The apparatus of claim 17, wherein said first differentiator comprises a circuit configured to generate a differential of said first signal.

19. The apparatus of claim 18, wherein said second differentiator comprises a circuit configured to generate a differential of said second signal.

20. The apparatus of claim 18, wherein said first differentiator is configured to generate a half-wave pulse.

21. The apparatus of claim 18, wherein said second differentiator is configured to generate a full-wave pulse.

22. The apparatus of claim 14, wherein said second generator is configured to generate the at least one pulse to correspond to at least one change in the at least one slope of the first signal.

23. The apparatus of claim 14, wherein said at least one pulse occupies an ultra-wide band signal.

24. The apparatus of claim 14, wherein said at least one pulse comprises a pulse carrier signal.

25. The apparatus of claim 14, further comprising a modulator configured to modulate the at least one pulse with information for transmission.

26. The apparatus of claim 25, wherein the modulator is configured to modulate the at least one pulse using at least one of pulse position modulation, pulse amplitude modulation, and transmitted reference modulation.

27. An apparatus for providing a signal comprising at least one pulse, comprising:

means for generating a first signal;

means for generating at least one pulse based on at least one slope of said first signal; and

means for transmitting said at least one pulse over a wireless channel.

28. The apparatus of claim 27, wherein said means for generating a first signal comprises a linear shift register configured to generate a pseudo-random sequence.

29. The apparatus of claim 27, wherein said means for generating a first signal is configured to generate at least one square wave.

30. The apparatus of claim 27, wherein said second generating means comprises:

means for generating a second signal indicative of at least one slope of said first signal; and

means for generating a third signal comprising said at least one pulse indicative of a slope of said second signal.

31. The apparatus of claim 30, wherein said means for generating a second signal comprises means for generating a differential of said first signal.

32. The apparatus of claim 31, wherein said means for generating a third signal comprises means for generating a differential of said second signal.

33. The apparatus of claim 30, wherein said means for generating a second signal is configured to generate a half-wave pulse.

34. The apparatus of claim 30, wherein said means for generating a third signal is configured to generate a full-wave pulse.

35. The apparatus of claim 27, wherein said means for generating at least one pulse is configured to generate the at least one pulse to correspond to at least one change in the at least one slope of the first signal.

36. The apparatus of claim 27, wherein said at least one pulse substantially occupies an ultra-wide band.

37. The apparatus of claim 27, wherein said at least one pulse comprises a pulse carrier signal.

38. The apparatus of claim 27, further comprising means for modulating the at least one pulse with information for transmission.

39. The apparatus of claim 38, wherein the modulating means is configured to modulate the at least one pulse using at least one of pulse position modulation, pulse amplitude modulation, and transmitted reference modulation.

40. A computer-program product for communicating data, comprising:

computer-readable medium comprising codes executable by at least one computer to;

generate a first signal;

generate at least one pulse based on at least one slope of said first signal; and

transmit said at least one pulse over a wireless channel.

41. A headset for wireless communications, comprising:

a microphone adapted to provide sensed data;

a first generator configured to generate a first signal;

a second generator configured to generate at least one pulse based on at least one slope of said first signal; and

a transmitter configured to modulate the at least one pulse with information derived from the sensed data for transmission over a wireless communications link.

42. A watch for wireless communications, comprising:

a first generator configured to generate a first signal;

a second generator configured to generate at least one pulse based on at least one slope of said first signal;

a transmitter configured to transmit said at least one pulse over a wireless communication link; and

a display adapted to provide a visual output based on at least one pulse received via the wireless communication link.

43. A medical device for wireless communications, comprising:

a sensor adapted to provide sensed data;

a first generator configured to generate a first signal;

a second generator configured to generate at least one pulse based on at least one slope of said first signal; and

a transmitter configured to modulate the at least one pulse with information derived from the sensed data for transmission over a wireless communications link.