Device, system, and method for transporting data using combined broadband and legacy network infrastructures

• US 8,184,643 B2
• Filed: 09/14/2005
• Issued: 05/22/2012
• Est. Priority Date: 09/14/2005
• Status: Active Grant

• Current Assignee: Ciena Corporation
• Original Assignee: Ciena Corporation
• Inventors: Faska, Thomas S., Kelly, Peter J.
• Primary Examiner(s): Wilson, Robert
• Assistant Examiner(s): O CONNOR, BRIAN T
• Application Number:
  US11/226,019
• Publication Number:
  US 20070076746A1
• Time in Patent Office: 2,442 Days
• Field of Search: 370/400, 370/401, 370/411, 370/463, 725/129
• US Class Current: 370/400
• CPC Class Codes: H04J 14/0298 with sub-carrier multiplexing [SCM]
• CPC Class Codes: H04L 12/28 characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] wireless communication networks H04W ; arrangements for dividing the transmission path H04W40/00
• CPC Class Codes: H04N 7/104 Switchers or splitters
• CPC Class Codes: H04N 7/108 the cable being constituted by a pair of wires
• CPC Class Codes: H04N 7/22 Adaptations for optical transmission

Abstract

The invention relates generally to data communications using multiple data networks to transport data to one or more end user devices.

Claims

1. A data distribution device comprising,

at least one legacy user data port in communication with at least one end user device via a first network transport medium,

at least one broadband data port in communication with a second network transport medium,

at least one data port in communication with a legacy network via a third network transport medium,

at least one broadband transceiver, in communication with the at least one broadband data port, for sending and receiving broadband data signals,

at least one legacy transceiver, in communication with the at least one legacy user data port and the at least one data port, for sending and receiving RF modulated data signals,

at least one converter, in communication with the at least one legacy transceiver, adapted for i) converting RF modulated data signals into data packets and ii) converting data packets into RF modulated data signals,

a data switch, in communications with the at least one converter and the at least one broadband transceiver, for inspecting and routing data packets between data ports, and

at least one combiner/splitter, in communication with the at least one legacy transceiver, adapted for i) combining a first RF modulated data signal in a first frequency band with a second RF modulated data signal in a second frequency band and ii) extracting at least one of the first and second RF modulated data signals from a single RF modulated data signal including the combined RF modulated data signals in the first and second frequency bands;

wherein data from both the second transport network medium and the third transport network medium is transported over the first transport medium, and wherein the first transport medium and the third network transport medium comprise coaxial cable forming part of a legacy cable television network and the second network transport medium comprising optical cable forming part of a broadband data network, the legacy cable television network and the broadband data network operating in parallel and the data distribution device configured to merge traffic associated with each of the legacy cable television network and the broadband data network to an end user via the first transport medium.

2. The device of claim 1 comprising:

a processor, in communication with the data switch, configured to determine the distribution of at least one data packet to at least on data port.

3. The device of claim 1 comprising:

at least one wireless transceiver, in communication with the data switch and at least one wireless data port, for sending and receiving wireless data signals.

4. The device of claim 1, wherein the RF modulated data signal includes at least one of an analog data signal and a digital data signal.

5. The device of claim 1, wherein the first frequency band is located in a range greater than about 750 MHz, and wherein the first frequency band is outside a deployed cable television band on the first network transport medium.

6. The device of claim 5, wherein the second frequency band is located in a range greater than about 750 MHz, the second frequency band being located in a range different than the first frequency band, and wherein the second frequency band is outside a deployed cable television band.

7. The device of claim 1, wherein the combiner/splitter is configured to combine a third RF modulated data signal with the first and second RF modulated data signals, the third RF modulated data signal being in a third frequency band.

8. The device of claim 7, wherein the third frequency band is located in a range equal to or less than about 1000 MHz, and wherein the third frequency band is outside a deployed cable television band.

9. The device of claim 1, wherein the data switch is configured to send one or more data packets not addressed to any of the legacy data ports to another data distribution device via the at least one broadband data port.

10. The device of claim 1, wherein the inspecting and routing of data packets includes at least one of a packet prioritization and quality of service determination.

11. The device of claim 1, wherein the inspecting and routing of data packets is based at least in part on one of the IEEE 802.1p, IEEE 802.1q, and the Multi-Protocol Label Switching (MPLS) standard.

12. The device of claim 1, wherein the device communicates in at least one of half-duplex and collision detection mode.

13. The device of claim 12, wherein the first and second frequency bands are at least one of substantially the same and overlapping.

14. The device of claim 1 comprising, one or more additional Ethernet data ports.

15. The device of claim 1, wherein the processor is configured to communicate with a remote server for determining the distribution of data to at least one data port.

16. The device of claim 15, wherein the processor is configured to i) store local configuration information, ii) monitor and store internal operations information, and iii) report operations information to the remote server.

17. The device of claim 1, wherein the at least one legacy user data port includes a coaxial cable port.

18. The device of claim 1, wherein the at least one legacy user data port includes a digital subscriber line data port.

19. The device of claim 1, wherein the broadband data port includes a fiber optic data port.

20. A communications system comprising:

a legacy data network,

a plurality of end user devices in communication with the legacy data network,

a broadband data network operating in parallel with the legacy data network, and

a plurality of data distribution devices in communication with the legacy and broadband data networks, each of the plurality of data distribution configured to merge data traffic from the legacy data network and the broadband data network for distribution to the plurality of end users, and each of the plurality of data distribution devices including;

at least one legacy user data port in communication with at least one end user device,

at least one data port in communication with the legacy data network,

at least one broadband data port,

at least one broadband transceiver, in communication with the at least one broadband data port, for sending and receiving broadband data signals,

at least one legacy transceiver, in communication with the at least one legacy user data port and the at least one data port, for sending and receiving RF modulated data signals,

at least one converter, in communication with the at least one legacy transceiver, adapted for i) converting RF modulated data signals into data packets and ii) converting data packets into RF modulated data signals, a data switch, in communications with the at least one converter and the at least one broadband transceiver, for inspecting and routing data packets between data ports, and

at least one combiner/splitter, in communication with the at least one legacy transceiver, adapted for i) combining a first RF modulated data signal in a first frequency band with a second RF modulated data signal in a second frequency band and ii) extracting at least one of the first and second RF modulated data signals from a single RF modulated data signal including the combined RF modulated data signals in the first and second frequency bands;

wherein data from both the legacy data network and the broadband data network is distributed over a coaxial cable forming part of a legacy cable television network to the at least one end user device.

21. The system of claim 20, wherein each device includes a processor in communication with the data switch and configured to determine the distribution of at least one data packet to at least on data port.

22. The system of claim 20, wherein each device includes at least one wireless transceiver, in communication with the data switch and at least one wireless data port, for sending and receiving wireless data signals.

23. The system of claim 22 comprising:

at least one end user device configured to exchange wireless data with at least one data distribution device via the wireless data port.

24. The system of claim 20, wherein at least one end user device configured to exchange RF modulated data signals with at least one data distribution device via at least one legacy data port.

25. The system of claim 20, wherein at least one data distribution device is configured to exchange RF modulated data signals with at least one other data distribution device via at least one other legacy data port.

26. The system of claim 20, wherein at least a portion of the plurality of data distribution devices are connected via one or more data ports with each other in a series configuration.

27. The system of claim 20, wherein at least a portion of the plurality of data distribution devices are connected via one or more data ports with each other in a mesh configuration.

28. The system of claim 20, wherein the RF modulated data signal includes at least one of an analog data signal and a digital data signal.

29. The system of claim 20, wherein the first frequency band is located in a range greater than about 750 MHz, and wherein the first frequency band is outside a deployed cable television band on the cable.

30. The system of claim 29, wherein the second frequency band is located in a range greater than about 750 MHz, the second frequency band being located in a range different than the first frequency band, and wherein the second frequency band is outside a deployed cable television band.

31. The system of claim 20, wherein the combiner/splitter of at least one data distribution device is configured to combine a third RF modulated data signal with the first and second RF modulated data signals, the third RF modulated data signal being in a third frequency band.

32. The device of claim 31, wherein the third frequency band is located in a range equal to or less than about 1000 MHz, and wherein the third frequency band is outside a deployed cable television band.

33. The system of claim 20, wherein the legacy data network includes a coaxial cable network.

34. The system of claim 20, wherein the legacy data network includes at least a portion of the Public Switched Telephone Network, PSTN.

35. The system of claim 34, wherein the portion of the PSTN supports a data transmission protocol including at least one of Digital Subscriber Loop (DSL), Asymmetric Digital Subscriber Line (ADSL), Very High Bitrate Digital Subscriber Line (VDSL), and Very High Speed Digital Subscriber Line 2 (VDSL2).

36. The system of claim 20, wherein the broadband data network includes a fiber optic physical medium.

37. A method of transmitting data over multiple networks comprising:

sending a first legacy data signal to a data distribution device over a first network, wherein the data distribution device is connected to a coaxial cable forming part of a legacy cable television network and,

sending a first broadband data signal to the data distribution device over a second network, wherein the first network and the second network operating in parallel to one another,

receiving at the data distribution device the legacy data signal and the broadband data signal,

processing at the data distribution device the broadband data signal with a data switch,

sending, from the data distribution device, processed data and data from the first legacy data signal to at least one destination device over a legacy network connection between the data distribution device and the destination device, wherein the processed data is transmitted out-of-band on the legacy network connection, and wherein the data distribution device is configured to merge data traffic from the first network and the second network to the at least one destination device.

38. The method of claim 37, wherein the destination device is at least one of a data distribution device, a switch, a router, a repeater, and an end user device.

39. The method of claim 37 comprising:

switching and converting the first broadband data signal into at least a second legacy data signal.

40. The method of claim 37 comprising:

converting and switching the first legacy data signal into at least a second broadband data signal.

41. The method of claim 38 comprising:

sending, from the data distribution device, the first broadband data signal to the destination device via the second data network and sending the first legacy data signal to the destination device via the first data network.

42. The method of claim 39 comprising:

sending the first legacy data signal in a first frequency band and the second legacy data signal in a second frequency band over the first network to the destination device, wherein the first frequency band and the second frequency band are outside a deployed cable television band.