Arrangement for providing mediated access in an HFC access network

• US 6,728,887 B1
• Filed: 02/23/2000
• Issued: 04/27/2004
• Est. Priority Date: 10/07/1999
• Status: Expired due to Term

• Current Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Original Assignee: General Instrument Corporation (CommScope Holding Company, Inc.)
• Inventors: Dziekan, Robert R., Weinstock, Jonathan A., Lee, Nicholas D.
• Primary Examiner(s): Morse, Gregory
• Assistant Examiner(s): NALVEN, ANDREW L
• Application Number:
  US09/511,702
• Time in Patent Office: 1,525 Days
• Field of Search: 713/201, 709/229, 709/223, 709/224, 709/225, 709/226, 709/220, 709/221, 725/129, 455/26.1, 705/53
• US Class Current: 726/3
• CPC Class Codes: H04H 20/69 Optical systems
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 45/02 Topology update or discovery
• CPC Class Codes: H04N 17/00 Diagnosis, testing or measuring for television systems or their details
• CPC Class Codes: H04N 21/2402 Monitoring of the downstream path of the transmission network, e.g. bandwidth available traffic monitoring in data switching networks H04L43/00; monitoring data switching networks utilization H04L43/0876
• CPC Class Codes: H04N 21/2408 Monitoring of the upstream path of the transmission network, e.g. client requests monitoring data switching networks utilization H04L43/0876; scheduling or organising the servicing of application requests H04L67/60
• CPC Class Codes: H04N 7/17309 Transmission or handling of upstream communications

Abstract

A hybrid fiber coaxial (HFC) access network manager is formed to include a mediated access system to control each service provider'"'"'s ability to monitor, view and re-configure selected elements within the HFC access network. A database included within the manager contains a mapping between the information service providers and the various network elements for which each service provider is permitted access and/or control. With mediated access, an information service provider has the ability to monitor quality, perform diagnostic tests and configure that equipment which directly supports the provided services.

Claims

1. In a hybrid fiber/coax (HFC) access network, an access control system for mediating and controlling the permitted access of a plurality of information service providers to a plurality of network elements, the access control system comprising

a security and authorization database including a listing of each information service provider and a mapping between each service provider and a subset of network elements for which each service provider is permitted access;

a quality of service system for collecting and processing forward path and return path signal quality information, and for providing said information to permitted information service providers in accordance with said security and authorization database;

a device configuration module coupled between the plurality of information service providers and the plurality of network elements for permitting predetermined service providers to re-configure selected parameters of predetermined network elements in accordance with the permissions mapped in the security and authorization database.

2. An access control system as defined in claim 1 wherein the system further comprises a diagnostic test element coupled between the plurality of information service providers and the plurality of network elements, said element controlled by said service providers to perform predetermined tests on selected network elements.

3. An access control system as defined in claim 1 wherein the plurality of information service providers comprise data, video and telephony service providers.

4. A method of providing mediated access to a plurality of network elements in an HFC access network by a plurality of information service providers associated with said access network, the method comprising the steps of:

a) creating a database associating each information service provider with a subset of network elements for which each information service provider is permitted surveillance, access and/or configuration permissions;

b) providing a database of the topology of the network elements;

c) upon request from an information service provider, providing access to a selected network element, as controlled by the database created in step a).

5. The method as defined in claim 4 wherein in performing step c), access is permitted to monitor signal path quality.

6. The method as defined in claim 5 wherein in performing step c), forward path signal quality is monitored.

7. The method as defined in claim 5 wherein in performing step c), return path signal quality is monitored.

8. The method as defined in claim 4 wherein in performing step c), transmission bit error rate is monitored to determine signal path quality.

9. The method as defined in claim 4 wherein in performing step c), diagnostic testing of a selected network element is performed by a permitted information service provider.

10. The method as defined in claim 4 wherein in performing step c), configuration of a selected network element is performed by a permitted information service provider.