HIGH BANDWIDTH DATA TRANSPORT SYSTEM

• US 20110188541A1
• Filed: 04/05/2011
• Published: 08/04/2011
• Est. Priority Date: 10/28/1999
• Status: Active Grant

• Current Assignee: Lightwaves Systems, Inc.
• Original Assignee: Lightwaves Systems, Inc.
• Inventors: Melick, Bruce D., Baych, Leslie D., Snyder, David M., Gerke, Joseph A., Stanford, Jon G., Kennedy, Philip T., Probst, Gregory P.
• Granted Patent: US 8,229,007 B2
• Time in Patent Office: Days
• US Class Current: 375/130
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 1/7172 Pulse shape in general H04L25/03834
• CPC Class Codes: H04B 1/7176 Data mapping, e.g. modulation
• CPC Class Codes: H04B 2203/5416 by adding signals to the wave form of the power source
• CPC Class Codes: H04L 25/0384 Design of pulse shapes pulse shape for impulse radio H04B1/7172
• CPC Class Codes: H04L 25/4902 Pulse width modulation; Pulse position modulation
• CPC Class Codes: H04L 27/0004 using wavelets
• CPC Class Codes: H04L 5/1469 using time-sharing

Abstract

The present invention provides for a methods, system, and apparatus relating to data transmission. One method of the present invention includes representing data using at least one ultra wideband pulse, sending the at least one ultra wideband pulse over an electrically conductive guided media, and recovering the data from the at least one ultra wideband pulse. The present invention can be used in conjunction with telephony applications, cable TV applications, power line applications, fiber optic applications, and data bus applications.

Claims

1. A method of data transmission, comprising:

(a) receiving at least one stream of data;

(b) framing the at least one stream of data using Generic Frame Protocol (GFP) to provide GFP bytes;

(c) encoding the GFP bytes with control data to provide control data encoded bytes;

(d) encoding the control encoded bytes with a Reed Solomon encoder to provide Reed Solomon encoded data;

(e) interleaving the Reed Solomon encoded data to provide interleaved Reed Solomon encoded data;

(f) encoding the interleaved Reed Solomon encoded, data using an array of pulse amplitude modulated data symbols to provide pulse amplitude modulated data;

(g) serially transmitting the pulse amplitude modulated data as ultra wideband impulses concurrently with a non-ultra wideband clock signal through an digital downstream bandpass filter to provide analog filtered ultra wideband impulse;

(h) further serially transmitting the analog filtered ultra wideband impulses concurrently with the non-ultra wideband clock signal downstream over a hard-wired medium;

(i) receiving the digital filtered ultra wideband impulses and non-ultra wideband clock signal downstream over the hard-wired medium;

(j) recovering and decoding the pulse amplitude modulated data symbols from the analog filtered ultra wideband impulses using a Digital Frequency Equalizer (DFE) to provide recovered ultra wideband data;

(k) recovering the non-ultra wideband clock signal using a Phase Locked Loop (PLL) locked to a Digital Analog Converter (DAC);

(l) synchronizing the recovered ultra wideband data with the non-ultra wideband clock signal;

(m) de-interleaving the pulse amplitude modulated data symbols;

(n) decoding the data symbols using a Reed Solomon decoder to provide the control encoded data; and

(o) decoding the control data encoded bytes to create GFP bytes.

2. The method of claim 1 wherein characteristics of the ultra wideband impulses being at least partially based on characteristics of the hard-wired medium.

3. The method of claim 1 wherein the hard-wired medium is simultaneously used for wave based transmissions and transmission of the ultra wideband impulses.

4. The method of claim 2 wherein the hard-wired medium is a telecommunications line.

5. The method of claim 2 wherein the ultra wideband impulses co-exist with narrowband signals on the same hard-wired medium.

6. The method of claim 1 wherein the ultra wideband impulses are spectrally shaped.

7. The method of claim 1 wherein the ultra wideband impulses transmit data selected from the group consisting of:

telephony data, high-speed data, digital video data, digital television data, Internet communication data, and audio data.

8. The method of claim 1 wherein the ultra wideband impulses are transmitted on one frequency subcarrier channel on the hard-wired medium.

9. The method of claim 1 wherein the ultra wideband impulses are transmitted on at least two frequency subcarrier channels the hard-wired medium.

10. The method of claim 1 wherein the ultra wideband impulses are multiplexed using a type of multiplexing selected from the group consisting of synchronous time division multiplexing, asynchronous time division multiplexing, code division multiplexing, and frequency division multiplexing.

11. The method of claim 1 wherein the at least one bit is 3 bits.

12. The method of claim 1 wherein the pulse position array has 8 data symbols.

13. The method of claim 1 wherein the digital filter is an Infinite Impulse Response (IIR) filter.

14. The method of claim 1 wherein the digital filter is a Finite Impulse Response (FIR) filter.

15. The method of claim 1 wherein the digital filter is a Fast Fourier Transform (FFT) filter.

16. The method of claim 1 wherein data is transmitted downstream and upstream simultaneously in distinct interleaved frequency notched channels.

17. A method of data transmission, comprising:

(a) receiving at least one stream of data;

(b) framing the at least one stream of data using a Generic Frame Protocol (GFP) to provide GFP bytes;

(c) encoding the GFP bytes with control data to provide control data encoded bytes;

(d) encoding the control encoded bytes with a Reed Solomon encoder to provide Reed Solomon encoded data;

(e) interleaving the Reed Solomon encoded data to provide interleaved Reed Solomon encoded data;

(f) encoding the interleaved Reed Solomon encoded data using an array of pulse amplitude modulated data symbols to provide pulse amplitude modulated data;

(g) serially transmitting the pulse amplitude modulated data as ultra wideband impulses concurrently with a non-ultra wideband clock signal through a digital downstream bandpass filter to provide digital filtered ultra wideband impulses;

(h) serially transmitting the digital filtered ultra wideband impulses concurrently with the non-ultra wideband clock signal downstream over a hard-wired medium;

(i) receiving the analog filtered ultra wideband impulses and the non-ultra wideband clock signal downstream over the hard-wired medium;

(j) recovering and decoding the pulse amplitude modulated data symbols from the analog filtered ultra wideband impulses using a Digital Frequency Equalizer (DFE) to provide recovered ultra wideband data;

(k) recovering the non-ultra wideband clock signal using a Phase Lock Loop (PLL) locked to a digital analog converter (DAC);

(l) synchronizing the recovered ultra wideband data with the non-ultra wideband clock signal;

(m) de-interleaving the pulse amplitude modulated data symbols;

(n) decoding the data symbols using a Reed Solomon decoder to provide the control encoded data; and

(o) decoding the control data encoded bytes to create GFP bytes.

18. The method of claim 17 wherein characteristics of the ultra wideband impulses being at least partially based on characteristics of the hard-wired medium.

19. The method of claim 17 wherein the hard-wired medium is simultaneously used for wave based transmissions and transmission of the ultra wideband impulses.

20. The method of claim 18 wherein the hard-wired medium is a telecommunications line.

21. The method of claim 18 wherein the ultra wideband impulses co-exist with narrowband signals on the hard-wired medium.

22. The method of claim 17 wherein the ultra wideband impulses are spectrally shaped.

23. The method of claim 17 wherein the ultra wideband impulses transmit data selected from the group consisting of:

telephony data, high-speed data, digital video data, digital television data, Internet communication data, and audio data.

24. The method of claim 17 wherein the ultra wideband impulses are transmitted on one frequency subcarrier channel on the hard-wired medium.

25. The method of claim 17 wherein the ultra wideband impulses are transmitted on at least two frequency subcarrier channels on the hard-wired medium.

26. The method of claim 17 wherein the ultra wideband impulses are multiplexed using a type of multiplexing selected from the group consisting of synchronous time division multiplexing, asynchronous time division multiplexing, code division multiplexing, and frequency division multiplexing.

27. The method of claim 17 wherein the at least one bit is 3 bits.

28. The method of claim 17 wherein the pulse position array has 8 data symbols.

29. The method of claim 17 wherein data is transmitted downstream and upstream simultaneously in distinct frequency bandpass channels.

30. A method of data transmission, comprising:

(a) receiving at least one stream of data;

(b) buffering the at least one stream of data in a buffer;

(c) encoding at least one bit in the buffer with an array of pulse position data symbols;

(d) serially transmitting the pulse position data symbols as ultra wideband impulses over a hard-wired medium;

(e) receiving the ultra wideband impulses over the hard-wired medium;

(f) recovering the pulse position data symbols from the ultra wideband impulses using peak detection;

(g) measuring relative time between ultra wideband impulse peaks;

(h) decoding the relative time output between successive ultra wideband impulse peaks with an array of pulse position data symbols to thereby provide decoded data;

(i) buffering the decoded data.

31. The method of claim 30 wherein the ultra wideband impulses having characteristics selected at least partially based on characteristics of the hard-wired medium.

32. The method of claim 30 wherein the hard-wired medium is simultaneously used for wave based transmissions and transmission of the ultra wideband impulses.

33. The method of claim 31 wherein the hard-wired medium is a telecommunications line.

34. The method of claim 31 wherein the ultra wideband impulses co-exist with narrowband signals on the hard-wired medium.

35. The method of claim 30 wherein the ultra wideband impulses are spectrally shaped.

36. The method of claim 30 wherein the ultra wideband impulses transmit data selected from a group consisting of:

telephony data, high-speed data, digital video data, digital television data, Internet communication data, and audio data.

37. The method of claim 30 wherein the ultra wideband impulses are transmitted on a single frequency subcarrier channel over the hard-wired medium.

38. The method of claim 30 wherein the ultra wideband impulses are transmitted on at least two frequency subcarrier channels over the hard-wired medium.

39. The method of claim 30 wherein the ultra wideband impulse are multiplexed using a type of multiplexing selected from the group consisting of synchronous time division multiplexing, asynchronous time division multiplexing, code division multiplexing, and frequency division multiplexing.

40. The method of claim 30 wherein the at least one bit is 4 bits.

41. The method of claim 30 wherein the pulse position array has sixteen data symbols.

42. The method of claim 30 wherein the pulse position data symbols being constructed using a constant number of points.