Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)
- Volume 33A Issue 10
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- Pages.48-60
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- 1996
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- 1016-135X(pISSN)
Design and implementation of the interworking function for call processing control between B-ISDN and N-ISDN
B-ISDN과 N-ISDN간의 호처리 제어 연동기능부 설계 및 구현
Abstract
This paper focuses on the necessities of interworking and dervation of the requirements of interworking system for interworking between 64 Kbps based N-ISDN (narrowband ISDN) and B-ISDN(broadband ISDN). Furthermore, the design and the implementation of IWF (interworking function) are presentd. We analyze two ISDN signalling systems, and propose the architecture of interworking system. And then we make the baisc call procedure model between N-ISDN and B-ISDN, and verify the dynamic behaviors through the reachability tree of petri net. IWF is designed and implemented for transforming the differences between the two signalling systems. The operational confirmity of th eimplemented program was confirmed by the local test method. The performance of IWF was evaluated throguh the simulation language SLAM-II. As the result of evaluation shows, we confirm that the processing delay is maintained within 3 ms under the utilization 0.9.
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