VDSL data network, service and management architecture

• US 6,714,545 B1
• Filed: 03/03/2000
• Issued: 03/30/2004
• Est. Priority Date: 03/03/2000
• Status: Expired due to Term

• Current Assignee: Qwest Communications International Incorporated (Lumen Technologies, Inc.)
• Original Assignee: Qwest Communications International Incorporated (Lumen Technologies, Inc.)
• Inventors: Huffman, James A., Hugenberg, Keith F., Hultine, Bradley D., Tow, Steven R., Ahluwalia, Naini K., Kissler, Gregory L., Setzke, David R., Fisher, F. Craig
• Primary Examiner(s): VANDERPUYE, KENNETH N
• Application Number:
  US09/519,399
• Time in Patent Office: 1,488 Days
• Field of Search: 370/395.1, 370/397, 370/399, 370/395.5, 370/395.52, 370/485, 370/486, 370/466, 725/144, 725/138
• US Class Current: 370/395.1
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2408 for supporting different services, e.g. a differentiated services [DiffServ] type of service
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 61/2514 between local and global IP addresses
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5076 Update or notification mechanisms, e.g. DynDNS
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data

Abstract

A VDSL based broadband data communication network system is provided that utilizes ATM/IP all the way to an end user PC, thereby allowing selectable bit rate delivery to the end users, with a Class of Service (COS) and Quality of Service (QOS) selection. A headend is connected to external Internet service providers and a network central office, and is arranged to receive and send multi-protocol signals to the Internet service provider, and receive and send ATM signals to the central office. This VDSL data architecture is very functional and flexible with the capability of supporting such services as streaming video and audio, voice over IP, digital advertisements, videoconferencing, gaming, business-to-business service, E-commerce, video-on-demand, and interactive TV. The VDSL data network will support very high-speed two-way data services over fiber optics using SONET, Dense Wavelength Division Multiplexing, IP, ATM, and other transport systems. Furthermore, the VDSL data architecture also supports very high-bandwidth multimedia interactive applications for delivery to businesses, homes, or Multiple Dwelling Units using either Fiber-to-the-Node (FTTN), Fiber-to-the-Curb (or Neighborhood) (FTTC), and Fiber-to-the-Home (FTTH) using VDSL technology.

Claims

1. A scalable VDSL based broadband data communication network system comprising:

a central office arranged to communicate with a plurality of end user personal computer (PC) terminals using ATM signals;

a headend connected to an Internet service provider and the central office, wherein the headend is arranged to receive and send multi-protocol traffic signals to the Internet service provider, and receive and send ATM signals to the central office, the headend including a translation element arranged to translate a public IP address assigned to the VDSL network into a private network address assigned to a particular user PC terminal; and

a DHCP server connected to the headend and arranged to dynamically assign IP addresses, the DHCP server assigning a private network IP address to network elements in the headend used to provide data services for the end user PCs and associated residential gateways or data modems.

2. The system of claim 1 wherein the DHCP server is arranged to assign a private network IP address to a residential gateway connected at an end user location to enable Pay-Per-View services.

3. The system of claim 1 wherein the headend further comprises a broadband management system, and the VDSL network further comprises an element manager system connected to the headend and the central office, the broadband management system and element manager system arranged to configure, provision, and monitor access elements located in the central office, as well as network connection devices connected at the end user location to control end user access to available services.

4. A method of assigning IP addresses to end user PCs in a VDSL based broadband communication network, said network comprising a headend connected to an Internet service provider, the method comprising:

assigning a private network IP address to all network elements in the headend used to provide data services for the end user PCs and associated residential gateways connected to the VDSL network;

assigning private network IP addresses to residential gateways to enable Pay-Per-View services;

assigning to the end user PCs a private network IP address selected from a pool of private network IP addresses as a default procedure; and

selectively assigning public IP addresses to end user PCs that can not be properly served using a private network IP address.

5. The method of claim 4 further comprising routing signals corresponding to a private IP address to a translation element located at the headend for translation of a public IP address into a private IP address assigned to a particular end user PC;

and

bypassing the translation element when routing signals not corresponding to a private IP address.

6. The method of claim 4 further comprising reserving a set of public IP addresses for manual assignment to end users in accordance with a lease agreement.

7. The method of claim 4 wherein selectively assigning public IP addresses comprises assigning public IP addresses to end users running a computer program that is incompatible with a private IP address.

8. A VDSL based broadband data communication network system capable of allowing selectable bit rate delivery to end users comprising:

a central office connected to communicate ATM signals to a plurality of end user personal computer (PC) terminals; and

a headend connected to an Internet service provider and the central office, and arranged to receive and send multi-protocol traffic signals to the Internet service provider, and receive and send ATM signals to the central office, wherein the headend is further arranged to manage signal switching and routing based on a predetermined level of signal quality and transfer rate associated with a type of service provided to a particular end user, and wherein the head end is further arranged to support multi-protocol over ATM using either permanent virtual circuits or switched virtual circuits, where the virtual circuits can be terminated locally at a wire center or remotely from the wire center.

9. The system of claim 8 further comprising a Dynamic Host Address Protocol (DHCP) server connected to the headend and arranged to dynamically assign IP addresses.

10. The system of claim 8 wherein the DHCP server is arranged to assign a private IP address selected from a pool of private network IP addresses as a default procedure.

13. The system of claim 8 wherein the head end is further arranged to support two-way data services over high-speed fiber optics.

14. The system of claim 13 wherein the head end is arranged to support two data services using at least one of SONET, Dense Wavelength Division Multiplexing, IP, or ATM.

16. The system of claim 8 wherein the head end provides a VDSL platform arranged to support Quality of Service and Class of Service at either or both an IP and/or ATM layer.

17. The system of claim 16 wherein the VDSL platform is arranged to manage the Quality of Service and Class of Service in either a centralized or distributed environment.

11. A VDSL based broadband data communication network system capable of allowing selectable bit rate delivery to end users comprising:

a central office connected to communicate ATM signals to a plurality of end user personal computer (PC) terminals;

a headend connected to an Internet service provider and the central office, and arranged to receive and send multi-protocol traffic signals to the Internet service provider, and receive and send ATM signals to the central office, wherein the headend is further arranged to manage signal switching and routing based on a predetermined level of signal quality and transfer rate associated with a type of service provided to a particular end user, the headend including a broadband management system; and

an element manager system connected to the headend and the central office;

wherein the broadband management system and element manager system are arranged to configure, provision, and monitor access elements located in the central office, as well as network connection devices connected at the end user location to control end user access to available services.

12. The system of claim 11 wherein the broadband management system and element manager system support new end users on demand by pre-provisioning desired services.

15. A VDSL based broadband data communication network system capable of allowing selectable bit rate delivery to end users comprising:

a central office connected to communicate ATM signals to a plurality of end user personal computer (PC) terminals; and

a headend connected to an Internet service provider and the central office, and arranged to receive and send multi-protocol traffic signals to the Internet service provider, and receive and send ATM signals to the central office, wherein the headend is further arranged to manage signal switching and routing based on a predetermined level of signal quality and transfer rate associated with a type of service provided to a particular end user and wherein the head end is further arranged to provide a VDSL data platform capable of supporting business and residential users with very high-bandwidth multimedia interactive applications, as well as high-speed delivery of integrated services over a twisted pair wiring plant.

18. A VDSL based broadband data communication network system capable of allowing selectable bit rate delivery to end users comprising:

a central office connected to communicate ATM signals to a plurality of end user personal computer (PC) terminals; and

a headend connected to an Internet service provider and the central office, and arranged to receive and send multi-protocol traffic signals to the Internet service provider, and receive and send ATM signals to the central office, wherein the headend is further arranged to manage signal switching and routing based on a predetermined level of signal quality and transfer rate associated with a type of service provided to a particular end user;

wherein a VDSL platform is provided having a flexible VDSL data architecture for supporting streaming of video and audio, and voice over IP.