System and method for the communication of operation and maintenance, administration and provisioning information over an asynchronous transfer mode network

• US 6,052,371 A
• Filed: 11/27/1996
• Issued: 04/18/2000
• Est. Priority Date: 03/14/1996
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Lemieux, Yves
• Primary Examiner(s): VU, HUY DUY
• Application Number:
  US08/757,581
• Time in Patent Office: 1,238 Days
• Field of Search: 370/395, 370/396, 370/397, 370/398, 370/399, 370/466, 370/467, 370/310, 370/328, 370/338, 370/345, 370/349, 370/528, 370/522, 370/252, 370/410, 370/248, 370/474, 455/422, 455/426, 455/434, 455/439, 455/445
• US Class Current: 370/338
• CPC Class Codes: H04L 2012/5607 Radio
• CPC Class Codes: H04L 2012/5615 Network termination, e.g. NT1, NT2, PBX
• CPC Class Codes: H04L 2012/5625 Operations, administration and maintenance [OAM]
• CPC Class Codes: H04L 2012/5626 Network management, e.g. Intelligent nets
• CPC Class Codes: H04L 2012/5628 Testing
• CPC Class Codes: H04L 2012/563 Signalling, e.g. protocols, reference model
• CPC Class Codes: H04L 2012/5631 Resource management and allocation
• CPC Class Codes: H04L 2012/5653 using the ATM adaptation layer [AAL]
• CPC Class Codes: H04Q 11/0478 Provisions for broadband connections
• CPC Class Codes: H04Q 2213/13523 bandwidth management, e.g. capacity management
• CPC Class Codes: H04Q 2213/13527 protocols - X.25, TCAP etc.
• CPC Class Codes: H04Q 2213/13532 mobile networks
• CPC Class Codes: H04Q 3/0062 Provisions for network management
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 88/14 Backbone network devices
• CPC Class Codes: H04W 88/181 Transcoding devices; Rate adaptation devices

Abstract

To support communications system repairability, a scalable multi-level data bit stream, capable of supporting variable bandwidth ATM network access, includes an embedded operation channel used by a transport network management system to support connection maintenance, performance monitoring, path tracing, service management and testing functionalities. The transport network management system effectuates a service specific convergence sub-layer functionality to convert between Common Management Information Protocol (CMIP) formatted operation and maintenance managed objects and a message format for the embedded operation channel data. The conversion comprises a Remote Operations Service Element (ROSE) encapsulation, with the encapsulated data incorporated within the embedded operation channel of the multi-level data bit stream. An interface is provided with the ATM network through an ATM adaptation layer to segment the multi-level data bit stream into a plurality of ATM cells. Operation and maintenance message communication with the transport network management system is provided for both wireless and wireline communications systems accessing the ATM network.

Claims

1. A cellular telephone communications system accessing an asynchronous transfer mode (ATM) transport network, comprising:

a plurality of base stations effectuating radio frequency communications with subscriber mobile stations;

a base station concentrator connected to the plurality of base stations;

a first and second access nodes connected to the ATM transport network;

a first communications link connecting the base station concentrator and the first access node of the ATM transport network;

a transport network management system;

a second communications link connecting the transport network management system to the second access node of the ATM transport network;

wherein the base station concentrator and each first and second access node include interfaces for communicating voice information over the first communications link using a communications bit stream that includes an embedded operation channel carrying system operation and maintenance information for delivery to and from the transport network management system; and

wherein each first and second access node includes means for converting between the communications bit stream carried over the communications link and ATM cells carried over the ATM transport network.

2. The system of claim 1 wherein the second access node includes a handler functionality connected to the transport network management system over the second communications link for inserting and extracting system operation and maintenance information into and from the embedded operation channel of the communications bit stream.

3. The system of claim 1 wherein the means for converting of the first and second access node comprises:

means for segmenting the communications bit stream for insertion into a payload portion of transmitted ATM cells; and

means for assembling payload portions of received ATM cells into the communications bit stream.

4. The system of claim 1 wherein the transport network management system comprises:

a transport network management server including a manager functionality and a managed information base, the transport network management server processing common management information protocol (CMIP) formatted operation and maintenance data;

an encapsulator connected to the transport network management server for encapsulating the CMIP formatted operation and maintenance data within a remote operations service element (ROSE) encapsulation; and

an embedded operation channel controller connected to the encapsulator to format the ROSE encapsulated CMIP formatted operation and maintenance data into an embedded operation channel data format for transmission over the second communications link to the second access node, the controller further connected to the transport network management server to determine information therefrom for inclusion in formatting the embedded operation channel.

5. The system of claim 4 wherein the transport network management server performs the functions of fault management, performance management, configuration management, security management and accounting management with respect to the system.

6. The system of claim 4 wherein the information obtained from the transport network management server comprises node addressing information and ATM adaptation layer service information.

7. The system of claim 4 wherein the ROSE encapsulation comprises the CMIP formatted operation and maintenance data and a ROSE header including ROSE functionality parameters.

8. A telephone communications system accessing an asynchronous transfer mode (ATM) transport network, comprising:

a telephone exchange;

a first and second access node connected to the ATM transport network;

a first communications link connecting the telephone exchange and the first access node;

a transport network management system;

a second communications link connecting the transport network management system to the second access node of the ATM transport network;

wherein the telephone exchange and each first and second access node include interfaces for communicating voice information over the first communications link using a communications bit stream that includes an embedded operation channel carrying system operation and maintenance information for delivery to and from the transport network management system; and

wherein each first and second access node includes means for converting between the communications bit stream carried over the communications link and ATM cells carried over the ATM transport network.

9. The system of claim 8 wherein the second access node includes a handler functionality connected to the transport network management system over the second communications link for inserting and extracting system operation and maintenance information into and from the embedded operation channel of the communications bit stream.

10. The system of claim 8 wherein the means for converting of the first and second access node comprises:

means for segmenting the communications bit stream for insertion into a payload portion of transmitted ATM cells; and

means for assembling payload portions of received ATM cells into the communications bit stream.

11. The system of claim 8 wherein the transport network management system comprises:

a transport network management server including a manager functionality and a managed information base, the transport network management server processing common management information protocol (CMIP) formatted operation and maintenance data;

an encapsulator connected to the transport network management server for encapsulating the CMIP formatted operation and maintenance data within a remote operations service element (ROSE) encapsulation; and

an embedded operation channel controller connected to the encapsulator to format the ROSE encapsulated CMIP formatted operation and maintenance data into an embedded operation channel data format for transmission over the second communications link to the second access node, the controller further connected to the transport network management server to determine information therefrom for inclusion in formatting the embedded operation channel.

12. The system of claim 11 wherein the transport network management server performs the functions of fault management, performance management, configuration management, security management and accounting management with respect to the system.

13. The system of claim 11 wherein the information obtained from the transport network management server comprises node addressing information and ATM adaptation layer service information.

14. The system of claim 11 wherein the ROSE encapsulation comprises the CMIP formatted operation and maintenance data and a ROSE header including ROSE functionality parameters.

15. A telephone communications system accessing an asynchronous transfer mode (ATM) transport network, comprising:

a plurality of wireline telephone terminals;

a concentrator connected to the plurality of wireline telephone terminals;

a first and second access node connected to the ATM transport network;

a first communications link connecting the concentrator and the first access node;

a transport network management system;

a second communications link connecting the transport network management system to the second access node of the ATM transport network;

wherein the concentrator and each first and second access node include interfaces for communicating voice information over the first communications link using a communications bit stream that includes an embedded operation channel carrying system operation and maintenance information for delivery to and from the transport network management system; and

wherein each first and second access node includes means for converting between the communications bit stream carried over the communications link and ATM cells carried over the ATM transport network.

16. The system of claim 15 wherein the second access node includes a handler functionality connected to the transport network management system over the second communications link for inserting and extracting system operation and maintenance information into and from the embedded operation channel of the communications bit stream.

17. The system of claim 15 wherein the means for converting of the first and second access node comprises:

means for segmenting the communications bit stream for insertion into a payload portion of transmitted ATM cells; and

means for assembling payload portions of received ATM cells into the communications bit stream.

18. The system of claim 15 wherein the transport network management system comprises:

a transport network management server including a manager functionality and a managed information base, the transport network management server processing common management information protocol (CMIP) formatted operation and maintenance data;

an encapsulator connected to the transport network management server for encapsulating the CMIP formatted operation and maintenance data within a remote operations service element (ROSE) encapsulation; and

an embedded operation channel controller connected to the encapsulator to format the ROSE encapsulated CMIP formatted operation and maintenance data into an embedded operation channel data format for transmission over the second communications link to the second access node, the controller further connected to the transport network management server to determine information therefrom for inclusion in formatting the embedded operation channel.

19. The system of claim 18 wherein the transport network management server performs the functions of fault management, performance management, configuration management, security management and accounting management with respect to the system.

20. The system of claim 18 wherein the information obtained from the transport network management server comprises node addressing information and ATM adaptation layer service information.

21. The system of claim 18 wherein the ROSE encapsulation comprises the CMIP formatted operation and maintenance data and a ROSE header including ROSE functionality parameters.

22. A communications system, comprising:

a first node;

a second node;

a communications link connecting the first and second nodes; and

a transport network management system connected to the first node, the transport network management system comprising;

a transport network management server including a manager functionality and a managed information base, the transport network management server processing common management information protocol (CMIP) formatted operation and maintenance data;

an encapsulator connected to the transport network management server for encapsulating the CMIP formatted operation and maintenance data within a remote operations service element (ROSE) encapsulation; and

an embedded operation channel controller connected to the encapsulator to format the ROSE encapsulated CMIP formatted operation and maintenance data into an embedded operation channel data format for transmission to the first node, the controller further connected to the transport network management server to determine information therefrom for inclusion in formatting the embedded operation channel;

wherein the first and second nodes include interfaces for communicating voice information over the communications link using a bit stream basic block comprising a plurality of communications channels and an embedded operation channel carrying system operation and maintenance information for delivery to and from the transport network management system.

23. The system of claim 22 wherein the bit stream basic block supports an appropriate repetition rate for the plurality of communications channels.

24. The system of claim 22 wherein the first node includes a handler functionality for inserting and extracting system operation and maintenance information into and from the embedded operation channel of the bit stream basic block.

25. The system of claim 22 further including:

an asynchronous transport mode (ATM) transport network;

wherein the first node comprises an ATM access node connected to the ATM transport network and further includes means for converting between the bit stream basic block carried over the communications link and ATM cells carried over the ATM transport network.

26. The system of claim 25 wherein the means for converting of the ATM access node comprises:

means for segmenting the bit stream basic block for insertion into a payload portion of transmitted ATM cells; and

means for assembling payload portions of received ATM cells into the bit stream basic block.

27. The system of claim 22 wherein the transport network management server performs the functions of fault management, performance management, configuration management, security management and accounting management with respect to the system.

28. The system of claim 22 wherein the information obtained from the transport network management server comprises node addressing information and ATM adaptation layer service information.

29. The system of claim 22 wherein the ROSE encapsulation comprises the CMIP formatted operation and maintenance data and a ROSE header including ROSE functionality parameters.

30. The system of claim 22 wherein the communications system comprises a packet voice communications system.

31. The system of claim 22 wherein the communications system comprises a pulse code modulated (PCM) voice communications system.

32. A transport network management system connected over a communications link to a communications network, the system comprising:

a transport network management server including a manager functionality and a managed information base, the transport network management server processing common management information protocol (CMIP) formatted operation and maintenance data;

an encapsulator connected to the transport network management server for encapsulating the CMIP formatted operation and maintenance data within a remote operations service element (ROSE) encapsulation;

an embedded operation channel controller connected to the encapsulator to format the ROSE encapsulated CMIP formatted operation and maintenance data into an embedded operation channel data format for transmission over the communication link, the controller further connected to the transport network management server to determine information therefrom for inclusion in formatting the embedded operation channel format; and

a node of the network connected to the communications link and including a handler functionality for inserting and extracting the embedded operation channel formatted operation and maintenance information into and from an embedded operation channel of a bit stream basic block also including a plurality of communications channels.

33. The system of claim 32 wherein the transport network management server performs the functions of fault management, performance management, configuration management, security management and accounting management with respect to the system.

34. The system of claim 32 wherein the information obtained from the transport network management server comprises node addressing information and ATM adaptation layer service information.

35. The system of claim 32 wherein the ROSE encapsulation comprises the CMIP formatted operation and maintenance data and a ROSE header including ROSE functionality parameters.