基于CORBA的分布式智能网研究与IN/CORBA网关的实现
摘要
本文提出了基于CORBA(公共对象请求代理体系结构)的分布式智能网(IN)体系结构，完成了呼叫控制层的设计，给出了该体系结构实现智能业务的流程。本文还完成了这种分布式智能网的呼叫控制层与传统公共交换电话网(PSTN)互连所需的IN／CORBA网关的设计和实现。实现了INAP(智能网应用协议)从ASN.1(抽象语法描述)的格式转化为与平台无关、与编程语言无关的IDL(接口定义语言)描述(即协议翻译)。此外，网关还定义了一组CORBA对象，通过对象间的交互，完成INAP的消息传送机制到CORBA对象方法调用机制的转化(即交互翻译)。另外对如何提高网关的性能进行了分析。
This paper proposes the architecture of CORBA-based(Common Object Request Broker Architecture ) distributed Intelligent Network, designs the Call Control layer in the architecture, and presents the intelligent service flow. Also, the implementation of the IN/CORBA gateway required by the connection between the distributed IN and the traditional PSTN is given. INAP(Intelligent Network Application Protocol) describing in ASN. 1 is translated into EDL(Interface Definition Language), i.e. Specification Translation. Moreover, a group of CORE A objects are defined in the gateway. Through the interacting among these objects, the mechanism of message transmission in INAP is converted to the mechanism of method calling in CORBA, i.e. Interaction Translation. The analyse of how to improve the performance of the gateway is also given.
This paper proposes the architecture of CORBA-based(Common Object Request Broker Architecture ) distributed Intelligent Network, designs the Call Control layer in the architecture, and presents the intelligent service flow. Also, the implementation of the IN/CORBA gateway required by the connection between the distributed IN and the traditional PSTN is given. INAP(Intelligent Network Application Protocol) describing in ASN. 1 is translated into EDL(Interface Definition Language), i.e. Specification Translation. Moreover, a group of CORE A objects are defined in the gateway. Through the interacting among these objects, the mechanism of message transmission in INAP is converted to the mechanism of method calling in CORBA, i.e. Interaction Translation. The analyse of how to improve the performance of the gateway is also given.
引文
[1] ITU-T Recommendation Q.1200～1219 Series, Intelligent Network, 1992
[2] ITU-T Recommendation Q.1221～1229 Series, Intelligent Network, 1997
[3] PPL Patent Document, 1998
[4] Excel Communication Corporation, EXS Switch Software Developer's Guide, 2000
[5] 李晓峰，勾学荣，智能网，人民邮电出版社，1996．3
[6] 龚双谨，智能网技术，人民邮电出版社，1999．11
[7] 王柏，智能网教程，北京邮电出版社，2000．7
[8] 蔡希尧，面向对象技术，西安电子科技大学，1993．11
[9] OMG编著，CORBA系统结构、原理与规范，电子工业出版社，2000．6
[10] Robert Orfali, Dan Harkey, Jeri Edwards, 智能CORBA，电子工业出版社，1999．11
[11] Jamie Jaworski, JAVA开发指南，中国水利水电出版社，1997．1
[12] Philip Heller, Simon Roberts等，Java高级开发指南，电子工业出版社，1997．10
[13] 北京宝兰—英博思信息技术有限公司编著，Jbuilder3.0/4.0标准教程，清华大学出版社，2000．12
[14] Parlay Group, ParlayAPIs2.1 Document, 2001.3
[15] OMG, CORBA/TC Interworking Specification, 2001.1
[16] Open Group, Inter-Domain Management: Specification Translation (JIDM_ST), 2000
[17] ITU-T X. 880, Information technology-Remote Operations: Concepts, model and notation, 1994. 1
[18] Menelaos K., Parlay-based service engineering in a converged Internet-PSTN environment, Computer Networks, Vol 35, 2001, pp. 565-578
[19] ITU-T X. 680, Information technology-Abstract Syntax Notation One (ASN.1): Specification of basic notation, 1994.7
[20] 糜正琨，陈锡生，七号共路信令系统，人民邮电出版社，1994
[21] 纪红，7号信令系统，人民邮电出版社，1999．9
[22] 雷震洲，宋彤，蒋善宝等，新世纪电信新业务，2000．12
[23] Mark Finkelstein, Jim Garrahan, The Future of the Intelligent Network, IEEE Communications, 2000.1
[24] Rob Brennan, Brendan Jennings, Evolutionary Trends in Intelligent Networks, IEEE Communications, 2000.1
[25] Parlay Group, Parlay API Business Benefits White Paper, 1999.1
[26] Abdi R.Modarressi, Control and Management in Next-Generation Networks: Challenges and Opportunities, IEEE Communications, 2000. 10
[27] Douglas C.Schmidt, Developing Next-Generation Distributed Applications with QoS-Enabled DPE Middleware, IEEE Communications, 2000. 10
[28] S.Vinoski, New Features for CORBA 3.0, Communication ACM 41, 1998.10 pp. 44-52
[29] J.de Keijzer, D.Tait, JAIN:A New Approach to Services in Communication Networks, IEEE Communication, Vol38, No. 1, 2000.1, pp. 100-107
[30] S.Beddus , GBruce , Opening Up Netwoeks with JAIN Parlay , IEEE Communication, VoI38, No. 4, 2000． 4, pp. 136-143
[31] V.Blavette, Architecture and Service Scenarios for Internet-IN Convergence, EURESCOM P909 Deliverable 2, 2000． 3
[2] ITU-T Recommendation Q.1221～1229 Series, Intelligent Network, 1997
[3] PPL Patent Document, 1998
[4] Excel Communication Corporation, EXS Switch Software Developer's Guide, 2000
[5] 李晓峰，勾学荣，智能网，人民邮电出版社，1996．3
[6] 龚双谨，智能网技术，人民邮电出版社，1999．11
[7] 王柏，智能网教程，北京邮电出版社，2000．7
[8] 蔡希尧，面向对象技术，西安电子科技大学，1993．11
[9] OMG编著，CORBA系统结构、原理与规范，电子工业出版社，2000．6
[10] Robert Orfali, Dan Harkey, Jeri Edwards, 智能CORBA，电子工业出版社，1999．11
[11] Jamie Jaworski, JAVA开发指南，中国水利水电出版社，1997．1
[12] Philip Heller, Simon Roberts等，Java高级开发指南，电子工业出版社，1997．10
[13] 北京宝兰—英博思信息技术有限公司编著，Jbuilder3.0/4.0标准教程，清华大学出版社，2000．12
[14] Parlay Group, ParlayAPIs2.1 Document, 2001.3
[15] OMG, CORBA/TC Interworking Specification, 2001.1
[16] Open Group, Inter-Domain Management: Specification Translation (JIDM_ST), 2000
[17] ITU-T X. 880, Information technology-Remote Operations: Concepts, model and notation, 1994. 1
[18] Menelaos K., Parlay-based service engineering in a converged Internet-PSTN environment, Computer Networks, Vol 35, 2001, pp. 565-578
[19] ITU-T X. 680, Information technology-Abstract Syntax Notation One (ASN.1): Specification of basic notation, 1994.7
[20] 糜正琨，陈锡生，七号共路信令系统，人民邮电出版社，1994
[21] 纪红，7号信令系统，人民邮电出版社，1999．9
[22] 雷震洲，宋彤，蒋善宝等，新世纪电信新业务，2000．12
[23] Mark Finkelstein, Jim Garrahan, The Future of the Intelligent Network, IEEE Communications, 2000.1
[24] Rob Brennan, Brendan Jennings, Evolutionary Trends in Intelligent Networks, IEEE Communications, 2000.1
[25] Parlay Group, Parlay API Business Benefits White Paper, 1999.1
[26] Abdi R.Modarressi, Control and Management in Next-Generation Networks: Challenges and Opportunities, IEEE Communications, 2000. 10
[27] Douglas C.Schmidt, Developing Next-Generation Distributed Applications with QoS-Enabled DPE Middleware, IEEE Communications, 2000. 10
[28] S.Vinoski, New Features for CORBA 3.0, Communication ACM 41, 1998.10 pp. 44-52
[29] J.de Keijzer, D.Tait, JAIN:A New Approach to Services in Communication Networks, IEEE Communication, Vol38, No. 1, 2000.1, pp. 100-107
[30] S.Beddus , GBruce , Opening Up Netwoeks with JAIN Parlay , IEEE Communication, VoI38, No. 4, 2000． 4, pp. 136-143
[31] V.Blavette, Architecture and Service Scenarios for Internet-IN Convergence, EURESCOM P909 Deliverable 2, 2000． 3
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