HIGH BANDWIDTH DATA TRANSPORT SYSTEM

• US 20090110030A1
• Filed: 10/31/2007
• Published: 04/30/2009
• Est. Priority Date: 10/29/2007
• Status: Active Grant

• Current Assignee: Lightwaves Systems, Inc.
• Original Assignee: Lightwaves Systems, Inc.
• Inventors: SNYDER, DAVID M., KENNEDY, PHILIP T., STANFORD, JON G., GERKE, JOSEPH A., SONG, XUEJIE
• Granted Patent: US 8,451,879 B2
• Time in Patent Office: Days
• US Class Current: 375/130
• CPC Class Codes: H04B 1/71635 Transmitter aspects H04B1/7174 takes precedence
• CPC Class Codes: H04B 2203/545 Audio/video application, e.g. interphone
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines

Abstract

A device for sending and receiving ultra wideband communications over a guided medium includes a line interface configured for electrical communication to the guided medium and adapted for interfacing with the guided medium, an ultra wideband impulse transmitter electrically connected to the line interface for transmitting amplitude modulated ultra wideband impulses over the guided medium, and an ultra wideband receiver electrically connected to the line interface for receiving amplitude modulated ultra wideband impulses over the guided medium.

Claims

1. A device for ultra wideband communications over a guided medium, comprising:

a line interface configured for electrical communication to the guided medium and adapted for interfacing with the guided medium;

an ultra wideband impulse transmitter electrically connected to the line interface for transmitting amplitude modulated ultra wideband impulses over the guided medium;

an ultra wideband receiver electrically connected to the line interface for receiving amplitude modulated ultra wideband impulses over the guided medium;

wherein the device is adapted for preparing data for transmission using the ultra wideband impulse transmitter by;

(a) determining bit loading per frequency bin based on channel estimation data to create data symbols;

(b) performing a Fast Fourier Transform (FFT) on an array of the data symbols;

(c) mapping FFT data output sub-channel to a frequency bin to provide frequency mapped data;

(d) performing an Inverse Fast Fourier Transform (IFFT) on the frequency mapped data to provide IFFT frequency mapped data suitable for transmission using one-dimensional amplitude modulated ultra wideband impulses representing the IFFT frequency mapped data.

2. The device of claim 1 wherein the array of the data symbols is interleaved.

3. The device of claim 1 wherein the guided medium is a coaxial cable.

4. The device of claim 1 wherein the guided medium is a twisted pair wire.

5. The device of claim 1 wherein the guided medium is a power line.

6. The device of claim 1 wherein the ultra wideband transmitter is adapted for ultra wideband impulses using amplitudes.

7. The device of claim 1 wherein the ultra wideband communications communicate data selected from the group consisting of telephony data, digital video data, digital television data, Internet data, and audio data.

8. A device for ultra wideband communications over a guided medium, comprising:

a line interface configured for electrical communication to the guided medium and adapted for interfacing with the guided medium;

an ultra wideband impulse transmitter electrically connected to the line interface for transmitting amplitude modulated ultra wideband impulses over the guided medium;

an ultra wideband receiver electrically connected to the line interface for receiving amplitude modulated ultra wideband impulses over the guided medium;

wherein the device is adapted for (a) recovering data from the amplitude modulated ultra wideband impulses;

(b) performing a FFT on the data;

(c) mapping frequency to sub-channel to provide mapped data;

(d) equalizing the mapped data by sub-channel to provide equalized mapped data;

(e) performing an IFFT on the equalized mapped data to provide an IFFT output; and

(f) mapping the IFFT output to data symbols to thereby provide for recovering the information.

9. The device of claim 8 wherein the guided medium is a coaxial cable.

10. The device of claim 8 wherein the guided medium is a twisted pair wire.

11. The device of claim 8 wherein the guided medium is a power line.

12. The device of claim 8 wherein the ultra wideband transmitter is adapted for ultra wideband impulses using amplitudes.

13. The device of claim 8 wherein the ultra wideband communications communicate data selected from the group consisting of telephony data, digital video data, digital television data, Internet data, and audio data.

14. A method for communication across a guided medium, comprising:

transmitting a carrier wave signal across the guided medium;

transmitting ultra wideband impulses over the guided medium, ultra wideband impulses communicating data selected from the group consisting of telephony data, digital video data, digital television data, Internet, and audio data;

wherein the carrier wave signal and the ultra wideband impulses co-exist on the guided medium without preventing reception of either the carrier wave signal or the ultra wideband ultra wideband impulses by a receiver;

wherein the ultra wideband impulses are modulated using amplitudes.

15. The method of claim 14 wherein the guided medium is selected from a group consisting of a coaxial cable, a twisted pair wire, and a fiber optic cable.