System and method for providing multiple services to a destination via a fiber optic link

• US 20040141758A1
• Filed: 01/22/2003
• Published: 07/22/2004
• Est. Priority Date: 01/22/2003
• Status: Abandoned Application

• Current Assignee: Jamil O. El-Reedy
• Original Assignee: Jamil O. El-Reedy
• Inventors: El-Reedy, Jamil O.
• Application Number:
  US10/349,259
• Publication Number:
  US 20040141758A1
• Time in Patent Office: Days
• US Class Current: 398/167.5
• CPC Class Codes: H04J 14/0226 Fixed carrier allocation, e.g. according to service
• CPC Class Codes: H04J 14/0238 Wavelength allocation for communications one-to-many, e.g. multicasting wavelengths
• CPC Class Codes: H04J 14/0246 using one wavelength per ONU
• CPC Class Codes: H04J 14/0247 Sharing one wavelength for at least a group of ONUs
• CPC Class Codes: H04J 14/025 using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
• CPC Class Codes: H04J 14/0252 Sharing one wavelength for at least a group of ONUs, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
• CPC Class Codes: H04J 14/0282 WDM tree architectures
• CPC Class Codes: H04J 2203/008 Support of video
• CPC Class Codes: H04N 7/17309 Transmission or handling of upstream communications
• CPC Class Codes: H04N 7/22 Adaptations for optical transmission

Abstract

A system and method of providing multiple simultaneous services to several destinations is disclosed. The system includes a central office providing multiple digital services to several destinations. In addition, the system includes a curbside hub directing signals sent from the central office to the destinations. Each destination also includes a home-side interface unit for receiving and sending signals between the destination and the curbside hub. The curbside hub is located within the vicinity of the destinations. The curbside hub is connected to the central office by a first fiber optic link. Additionally, the curbside hub is connected to each home-side interface unit by a home-side fiber optic link. The curbside hub electrically multiplexes and demultiplexes signals between each home-side interface unit and the curbside hub. The curbside hub also optically multiplexes and demultiplexes signals transferred between the central office and the curbside hub. The system provides a cost-effective implementation of multiple digital services via a fiber optic network to residences.

Claims

1. A system for providing multiple services to a destination on a fiber optic network, said system comprising:

a central office providing multiple services to a plurality of destinations, each destination having a home-side interface unit coupled to a plurality of service interface units providing services to an occupant of each destination; and

a curbside hub connected to the central office via a first fiber optic link, said curbside hub connected to each destination by a home-side fiber optic link;

whereby said curbside hub transfers signals to and from each destination.

2. The system for providing multiple services to a plurality of destinations of claim 1 wherein said curbside hub multiplexes signals received from the plurality of service interface units and transfers the multiplexed signals to the central office.

3. The system for providing multiple services to a plurality of destinations of claim 2 wherein said curbside hub wavelength division multiplexes the signals sent to said central office.

4. The system for providing multiple services to a plurality of destinations of claim 1 wherein said curbside hub demultiplexes signals received from the central office and transfers the demultiplexed signals to a destination designated by the central office.

5. The system for providing multiple services to a plurality of destinations of claim 4 wherein said curbside hub electrically multiplexes and demultiplexes the signals transferred between the curbside hub and the plurality of home-side interface units.

6. The system for providing multiple services to a plurality of destinations of claim 5 wherein said curbside hub includes an aggregation function card for multiplexing the signals received from each home-side interface unit.

7. The system for providing multiple services to a plurality of destinations of claim 1 wherein the signals are formatted as Synchronous Optical Network (SONET) frames.

8. The system for providing multiple services to a plurality of destinations of claim 1 wherein said curbside hub includes means for demultiplexing and means for multiplexing signals transferred between the plurality of home-side interface units and said central office.

9. The system for providing multiple services to a plurality of destinations of claim 8 wherein the means for multiplexing signals includes an aggregation card for multiplexing signals received from the plurality of home-side interface units.

10. The system for providing multiple services to a plurality of destinations of claim 9 wherein the aggregation card time division multiplexes signals received from the plurality of home-side interface units.

11. The system for providing multiple services to a plurality of destinations of claim 10 wherein the curbside hub includes a plurality of aggregation cards, said cards sending signals to a wavelength division multiplexer for optically multiplexing signals received from the aggregation cards and transferring the signals to said central office.

12. The system for providing multiple services to a plurality of destinations of claim 1 wherein the services provided to a destination are multiplexed in a format allowing the simultaneous transmission of services over the home-side fiber optic link.

13. The system for providing multiple services to a plurality of destinations of claim 1 wherein the first fiber optic link is an OC-48 fiber optic link.

14. The system for providing multiple services to a plurality of destinations of claim 1 wherein the first fiber optic link is an OC-192 fiber optic link.

15. The system for providing multiple services to a plurality of destinations of claim 1 wherein the home-side fiber optic link is an OC-3 fiber optic link.

16. The system for providing multiple services to a plurality of destinations of claim 1 wherein the home-side fiber optic link is an OC-12 fiber optic link.

17. The system for providing multiple services to a plurality of destinations of claim 1 wherein the multiple services are provided simultaneously to the destination by overlaying each service on a SONET frame transmitted to and from each home-side interface unit.

18. The system for providing multiple services to a plurality of destinations of claim 17 wherein one of the services includes access to the Internet.

19. The system for providing multiple services to a plurality of destinations of claim 17 wherein one of the services is digital cable television.

20. The system for providing multiple services to a plurality of destinations of claim 17 wherein one of the services is digital video on demand.

21. The system for providing multiple services to a plurality of destinations of claim 17 wherein one of the services is an auxiliary digital/analog service operating with a baud rate over 122 Mbps.

22. The system for providing multiple services to a plurality of destinations of claim 17 wherein one of the services is a digital telephone service.

23. A system for providing multiple services to a destination via a fiber optic link, said system comprising:

a central office providing multiple services to a plurality of destinations, each destination having a home-side interface unit coupled to a plurality of service interface units providing services to an occupant of each destination; and

a curbside hub connected to the central office via a first fiber optic link, said curbside hub connected to each destinations by a home-side fiber optic link;

said curbside hub demultiplexing signals received from the central office via the first fiber optic link and wavelength division multiplexing signals being sent to said central office via the first fiber optic link;

said curbside hub time division multiplexing signals received from each home-side interface sending signals to said curbside hub via the home-side fiber optic link;

whereby said signals provide services via the first fiber optic link and each home-side fiber optic link to each destination.

24. The system for providing multiple services to a plurality of destinations of claim 23 wherein said curbside hub includes a plurality of aggregation cards, each aggregation card multiplexing and demultiplexing signals transferred between said curbside hub and a select number of destinations.

25. The system for providing multiple services to a plurality of destinations of claim 24 wherein signals received by each aggregation card are transferred to a wavelength division multiplex module, said wavelength division multiplex module optically multiplexing the signals and transferring the signals to the central office via the first fiber optic link.

26. A system for providing multiple services to a destination via a fiber optic link, said system comprising:

a central office providing multiple services to a plurality of destinations, each destination having a home-side interface unit coupled to a plurality of service interface units providing services to an occupant of each destination; and

a curbside hub connected to the central office via a first fiber optic link, said curbside hub connected to each destinations by a home-side fiber optic link;

said curbside hub having means for optically multiplexing and demultiplexing signals transferred between said curbside hub and said central office;

said curbside hub having means for electrically multiplexing and demultiplexing signals transferred between said curbside hub and each home-side interface unit.

28. A method of providing multiple simultaneous services to a plurality of destinations via a fiber optic network, said method comprising the steps of:

providing services via a first fiber optic link from a central office to a curbside hub, said curbside hub connected to a plurality of home-interface units by a plurality of home-side fiber optic links, each home-side unit located at a destination;

demultiplexing signals associated with the services by the curbside hub;

determining a destination for each demultiplexed signal; and

directing each determined, demultiplexed signal to a destination via one of the home-side fiber optic links, said directed signal providing at least one service to the destination.

27. The system for providing multiple services to a plurality of destinations of claim 28 further comprising means for providing multiple services via a signaling protocol overlaying each service on a frame transmitted via the first fiber optic link and the home-side fiber optic link.

29. The method of providing multiple simultaneous services to a plurality of destinations of claim 28 further comprises the steps of:

electrically multiplexing signals sent from each destination by the curbside hub; and

transferring the multiplexed signals to the central office.