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국내 B-ISDN 환경에서 UNI 기본 호/연결 메시지의 선택사양에 관한 연구
김석배(Kim Seog Bae),최강일(Choi Kang Il),이석기(Lee Seog Ki),이현태(Lee Hyeun Tae) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.4
The Q.2931 protocol describes the point-to-point basic call/connection control at user-network interface(UNI) and is the core part of the Signalling Capability Set 2 step 1 (CS 2.1) of B-ISDN in ITU-T. The activities on CS 2.1 is also under study in Korea and categorized as the first stage. The Q.2931 protocol should be applied to various devices with consistency especially among network devices. But, it is hard to implement this protocol into a device with consistency because this protocol has so many options. Especially, the device that charges for network roles must takes into account of various considerations. In this paper, we focused our study on the optional information elements of the Q.2931, and would like to redefine the characteristics of optional information elements for the point of the national boundary and proposed some common actions to the devices with network role.
ITU - T와 ATM Forum의 B - ISDN 점대점 호 / 연결 신호 기능 상호 운용 방안
김석배(Kim Seog Bae),민병도(Min Byung Do),박남훈(Park Nam Hoon),이석기(Lee Seog Ki) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.10
ITU-T Q.2931 and ATM Forum UNI 3.1 lead the standardization of signaling functions for the call/connection control at B-ISDN UNI. The one is applicable to the system in the public network, which provides the point-to-point call/connection control. The other is applicable to configure ATM private network mainly related with various terminal equipments. Domestic B-ISDN developers have developed ATM switches and B-NTs as network equipment, and B-TA as a terminal equipment. But many kinds of terminal-equipments are needed to provide various services in B-ISDN. If the public network can accommodate the terminal-equipments of UNI 3.1, it's very effective to accommodate manu kinds of terminal-equipments. Therefore, this paper identifies the problems that can be occurred on the signaling procedure, when B-ISDN the public network is connected to the UNI 3.1 terminal-equipment, and provides good alternatives that can handle this kind of call/connection well.
국내 B - ISDN 에서 신호 능력 향상을 위한 정보 모엘링과 Lookahead 기능 구조에 관한 연구
박남훈(Park Nam Hoon),김석배(Kim Seog Bae),이석기(Lee Seog Ki),김상하(Kim Sang Ha) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.3
This paper presents the requirement for signalling capability enhancement and the scenario of information modeling in B-ISDN, which is under development in Korea. These requirements can be used to both peer-to-peer and layer-to-layer signalling protocol. The B-ISDN connection-oriented bearer service with enhanced signalling capability can transport unlimited user's information through Virtual Path/Virtual Channel or Common Route Connection Group connection between one or more Sb/Tb reference point. To enhance currently developed B-ISDN signalling capability, this paper also proposes the method of call related information flow using information modeling technique. The context of this paper can be applied to the phased ongoing specification and development of the B-ISDN systems in Korea. Furthermore, it is possible to process Broadband tele-service through the signalling and call processing procedure in the later NNI, and to provide for the best convenience of terminal user.