KR20000037727A - Mobile intelligent network call processing method in pan worldwide mobile communication asynchronous transfer mode exchange - Google Patents

Mobile intelligent network call processing method in pan worldwide mobile communication asynchronous transfer mode exchange Download PDF

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KR20000037727A
KR20000037727A KR1019980052452A KR19980052452A KR20000037727A KR 20000037727 A KR20000037727 A KR 20000037727A KR 1019980052452 A KR1019980052452 A KR 1019980052452A KR 19980052452 A KR19980052452 A KR 19980052452A KR 20000037727 A KR20000037727 A KR 20000037727A
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call
mobile
intelligent network
call processing
atm
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KR1019980052452A
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Korean (ko)
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KR100277236B1 (en
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강상용
임형묵
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이계철
한국전기통신공사
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM

Abstract

PURPOSE: A mobile intelligent network call processing method in a pan worldwide mobile communication ATM(Asynchronous Transfer Mode) exchange is provided so that an ATM exchange can execute ATM call processing, IMT-2000 mobile call processing and intelligent network call processing at the same time after confirming a setup message transmitted from an RNC. CONSTITUTION: An IMT-2000 ATM mobile switching system receives a setup message from an RNC(105). After executing discrimination in a processing part to discriminate whether the message is an intelligent network call(110), an originating exchange generates a BCSM(Basic Call State Model) for triggering process(115). By executing an SSF(Signaling Service Function)(120), the originating exchange obtains the actual incoming address through inter-working with a SCP(Service Control Point)(125). After confirming an IMT-2000 call(130), the originating exchange carries out an HLR(Home Location Register) routing procedure(135) and receives a TLDN(140).

Description

범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법Mobile Intelligent Network Call Processing in Global Asynchronous Transfer Mode Switch

본 발명은 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법에 관한 것으로, 보다 상세하게는 IMT-2000 ATM이동교환시스템이 IMT-2000호처리와 이동 지능망 호처리를 동시에 수행하고 각 신호프로토콜을 통합하여 호처리기능을 제공하도록 된 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법에 관한 것이다.The present invention relates to a mobile intelligent network call processing method in a global mobile communication asynchronous transmission mode switch. More specifically, the IMT-2000 ATM mobile switching system simultaneously performs IMT-2000 call processing and mobile intelligent network call processing, and performs each signal. The present invention relates to a mobile intelligent network call processing method in a global mobile communication asynchronous transmission mode switch which provides a call processing function by integrating a protocol.

현재 ITU TG 8/1에서는 IMT-2000 서비스의 기본 요구사항으로, IMT-2000 이동호처리 가입자에게 지능망 서비스의 제공을 권고하고 있다.Currently, ITU TG 8/1 is a basic requirement of IMT-2000 service and recommends to provide INET-2000 mobile call processing subscriber with intelligent network service.

일반적으로, 지능망 호처리기능이 PSTN(Public Switched Telephone Network; 공중교환 전화망) 교환시스템이나 ISDN(Integrated Service Digital Network; 종합정보통신망) 교환시스템에 구현될 경우 중계교환시스템(Toll Exchange)에 구현하여 단국교환시스템(Local Exchange)으로부터 요구되는 지능망 호처리를 모아서 중계교환시스템이 중계 처리하도록 되어있다.In general, when the intelligent network call processing function is implemented in a public switched telephone network (PSTN) switching system or an integrated service digital network (ISDN) switching system, it is implemented in a toll exchange. Intelligent network call processing required from the local exchange is collected and the relay exchange system relays.

또한, 현재의 이동통신서비스에서도 지능망 연동기능은 중계 교환시스템에 연동하여 사용한다. 이러한 방법에서 지능망호처리를 수행하기 위해서는 발신교환기가 지능망 정보를 중계 교환시스템까지 전달하면, 중계 교환기가 SCP(Service Control point; 서비스 제어 시스템)와 트랜잭션을 처리하여 지능망호의 착신지 정보를 얻고, 다시 중계 교환기는 이 착신 정보를 발신교환기측에 피드백(Feed Back)한다. 정보를 전달받은 발신교환기는 획득된 정보를 가지고 다시 호처리(루팅절차) 절차를 수행하는 여러 단계를 거치는 단점이 있다. 이러한 방식을 이동교환시스템에 적용할 경우는 이동교환시스템의 호처리 특징상 지능망 중계 교환시스템으로부터 착신지 정보를 얻은 후에도 가입자위치저장기(Home Location Register)와의 트랜잭션처리을 통하여 이동통신 착신가입자가 위치한 착신 교환시스템의 정보를 얻어야 하는 또 하나의 트랜잭션 처리를 수행해야 한다. IMT-2000 교환기에서 이러한 호처리 절차를 정상적으로 수행할 경우 이동통신 지능망 착신호의 호처리 시간이 지연되는 단점이 있다.In addition, in the current mobile communication service, the intelligent network interworking function is used in conjunction with the relay switching system. In order to perform the intelligent network processing in this way, the source exchange transfers the intelligent network information to the relay exchange system, and the relay exchange processes the transaction with the SCP (Service Control Point) to obtain the destination information of the intelligent network. The intermediate exchange feeds back this incoming information to the originating exchange. The originating exchange that has received the information has the disadvantage of going through several steps of performing the call processing (routing procedure) procedure again with the acquired information. When this method is applied to the mobile switching system, after the destination information is obtained from the intelligent network relay switching system due to the nature of the call processing of the mobile switching system, the incoming call of the mobile subscriber is located through transaction processing with the Home Location Register. Another transaction process must be performed that needs to obtain information from the switching system. When the call processing procedure is normally performed in the IMT-2000 exchange, the call processing time of the mobile communication intelligent network incoming signal is delayed.

따라서 본 발명은 상기한 종래 사정을 감안하여 이루어진 것으로, 기지국제어기(RNC)로부터 전달되는 셋업(SETUP)메시지를 판단하여 ATM 교환기가 ATM호처리, IMT-2000이동호처리 및 지능망 호처리를 동시에 수행할 수 있도록 한 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법을 제공함에 목적이 있다.Accordingly, the present invention has been made in view of the above-described conventional situation, and the ATM exchanger can simultaneously perform ATM call processing, IMT-2000 mobile call processing, and intelligent network call processing by determining a setup message transmitted from a base station controller (RNC). An object of the present invention is to provide a mobile intelligent network call processing method in a global mobile communication asynchronous transmission mode switch.

상기한 목적을 달성하기 위해 본 발명의 바람직한 실시예에 따른 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법은, 가입자로부터의 발신호에 따른 신호메시지를 포함한 ATM셀을 수신하여 그 신호메시지의 번호분별에 의해 상기 수신된 신호메시지의 지능망호/유선 ATM호/IMT-2000이동호를 구분하는 과정과,In order to achieve the above object, a mobile intelligent network call processing method in a global mobile communication asynchronous transmission mode switch according to a preferred embodiment of the present invention, receives an ATM cell including a signal message according to an outgoing signal from a subscriber and receives the signal. Classifying the intelligent network code / wired ATM / IMT-2000 mobile call of the received signal message by number classification of the message,

상기 구분된 호유형에 따라 현재의 신호메시지를 기초로 해당하는 호처리를 수행하는 과정을 구비한다.And performing a corresponding call processing based on the current signal message according to the classified call type.

도 1은 본 발명이 적용되는 범세계 이동통신망 구성의 일예도,1 is an example of the configuration of a global mobile communication network to which the present invention is applied;

도 2는 도 1에 도시된 IMT-2000 ATM이동교환시스템의 블럭구성도,2 is a block diagram of an IMT-2000 ATM mobile switching system shown in FIG. 1;

도 3은 본 발명의 실시예에 따른 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법을 설명하는 흐름도이다.3 is a flowchart illustrating a mobile intelligent network call processing method in a global mobile communication asynchronous transmission mode switch according to an embodiment of the present invention.

〈 도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for the main parts of the drawings>

10 : 기지국 15 : 기지국 제어기(RNC)10: base station 15: base station controller (RNC)

20 : IMT-2000 ATM이동교환시스템20: IMT-2000 ATM Mobile Switching System

25 : 서비스 제어 시스템(SCP) 30 : 가입자 위치 저장기(HLR)25 Service Control System (SCP) 30 Subscriber Location Store (HLR)

55 : RNC인터페이스부 60 : ATM처리부55: RNC interface unit 60: ATM processing unit

65 : 신호프로토콜 처리부 70 : 지능망호처리 판단부65: signal protocol processing unit 70: intelligent network processing determination unit

75 : IMT-2000ATM 공통호처리부 80 : 이동성 처리부75: IMT-2000ATM common call processing unit 80: mobility processing unit

85 : BCSM처리부 90 : HLR연동 기능부85: BCSM processing unit 90: HLR interlocking function

95 : 서비스 스위칭 기능부 100 : IMT-2000ATM호처리장치95: service switching function unit 100: IMT-2000ATM call processing device

이하, 본 발명의 실시예에 대해 첨부된 도면을 참조하여 보다 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명이 적용되는 범세계 이동통신망 구성의 일예도로서, 본 발명에서 수행하고자 하는 이동 지능망 서비스 제공, ATM 호처리 서비스 제공, IMT-2000 이동 호처리 등을 통합적으로 수행하기 위한 환경은 IMT-2000 ATM 이동교환시스템(20), 이 IMT-2000ATM 이동교환시스템(20)과 STM-1급 중계선으로 연동되며 표준 INAP신호방식을 사용하는 서비스제어시스템(25; 이하 SCP라 함), IMT-2000 이동통신 가입자의 위치를 저장하는 가입자 위치 저장기(30; 이하 HLR이라 함), 이동 단말로부터의 신호메시지를 상기 IMT-2000ATM 이동교환시스템(20)에 전달하는 지지국제어기(15; 이하 RNC라 함), 이동 단말과 무선에 의해 신호방식과 데이터를 주고받는 기지국(10)으로 구성된다.1 is an exemplary diagram of a global mobile communication network to which the present invention is applied, and an environment for integrally performing mobile intelligent network service provision, ATM call processing service provision, IMT-2000 mobile call processing, etc. IMT-2000 ATM Mobile Switching System (20), IMT-2000ATM Mobile Switching System (20) interworking with STM-1 class relay lines and service control system using standard INAP signaling (25 (hereinafter referred to as SCP)), IMT A subscriber location store (30 (hereinafter referred to as HLR) for storing the location of the 2000 mobile communication subscriber) and a supporting international controller (15; below) for transmitting a signal message from the mobile terminal to the IMT-2000 ATM mobile switching system 20. RNC), and the base station 10 for transmitting and receiving the signaling method and data by the mobile terminal and the radio.

여기서, 상기 기지국(10)은 이동 단말로부터 전달되는 신호메시지 및 데이터를 유선 패킷 포멧으로 신호방식과 데이터를 변환한다. IMT-2000 교환시스템과 N:1 로 연결되는 RNC(15)는 유선 신호 및 데이터 포맷을 ATM 전송방식으로 변환하여 IMT-2000 ATM 이동교환시스템(20)에 전달한다. 상기 IMT-2000 ATM 이동교환시스템(20)은 SCP(25)와 INAP(Intelligent Network Application Part) 프로토콜을 사용/연동하여 지능망호의 착신 번호를 얻는다. 또한 상기 IMT-2000 ATM 이동교환시스템(20)은 정상 IMT-2000 이동호일 경우는 MAP(Mobile Application Part; 이동통신 운용부) 프로토콜을 사용하여 이동 단말로부터 전달된 셋업(SETUP)메시지내의 착신 이동가입자 번호를 가지고 HLR(30)과 연동하여 착신 가입자의 위치를 얻고, 이동 지능망호일 경우는 SCP(25)로부터 전달받은 이동가입자 착신번호를 사용하여 실제 착신가입자의 정보를 얻는다.Here, the base station 10 converts the signaling method and data from the signal message and data transmitted from the mobile terminal into a wired packet format. The RNC 15 connected to the IMT-2000 switching system N: 1 converts a wired signal and data format into an ATM transmission method and transmits the converted signal to the IMT-2000 ATM mobile switching system 20. The IMT-2000 ATM mobile switching system 20 uses the SCP 25 and the INAP (Intelligent Network Application Part) protocol to interwork with each other to obtain a call number of an intelligent network. In addition, if the IMT-2000 ATM mobile switching system 20 is a normal IMT-2000 mobile call, an incoming mobile subscriber in a setup message delivered from a mobile terminal using a mobile application part (MAP) protocol. Obtain the location of the called subscriber by interworking with the HLR 30 with the number, and in the case of the mobile intelligent network, obtain the actual called subscriber information using the mobile subscriber's called number received from the SCP (25).

도 2는 도 1에 도시된 IMT-2000 ATM이동교환시스템(20)의 블럭구성도로서, 그 처리과정을 살펴보면 다음과 같다.FIG. 2 is a block diagram of the IMT-2000 ATM mobile switching system 20 shown in FIG. 1, and the processing thereof is as follows.

본 발명에 의한 이동 지능망 서비스를 제공받기 위하여 IMT-2000 이동 가입자가 발신호를 수행하면, RNC(15)와 STM-1 급으로 연결된 RNC 인터페이스부(55)는 신호메시지를 포함한 ATM 셀을 IMT-2000 ATM 교환시스템의 ATM 처리부(60)에 전달하여 ATM처리를 수행하도록 한다. 이때 수신되는 메시지는 유선 ATM에서 사용하는 Q.2931 이나 Q.2761 의 SETUP메시지 포맷을 그대로 사용하도록 하며, 그 속에 포함된 번호에 의해 지능망호/유선ATM호/IMT-2000이동호를 구분하도록 한다. 상기 ATM 처리부(60)로부터 전달되는 신호 메시지의 Signaling ATM Adoptation Layer, SSCOP(Service Specific Connection Oriented Protocol), SSCF(Service Specific Co-Ordination Function), MTP(Message Transfer Part)3b, SCCP(Signalling Connection Control Part) 처리를 수행하는 신호프로토콜 처리부(65)를 거쳐 지능망호처리 판단부(70)로 메시지가 전달되면 지능망호처리 판단부(70)는 신호프로토콜처리부(65)를 통해 전달된 SETUP 메시지내의 착신번호를 분석하여, 지능망 인식번호(Detection Point)를 가지고 있으면 해당 BCSM(Basic Call State Model;기본호상태 모델) 처리부(85)를 통한 SCP(25) 와의 트리거링 처리를 수행함으로서 실질적인 이동착신번호(IMUI:International Mobile User Identity)를 얻는 처리를 수행한 후 이동착신번호를 IMT-2000 ATM 공통호처리부(75)로 전달한다. 한편 SETUP메시지내의 착신번호 분석결과 IMT-2000 인식번호(IMUI)를 가지고 있으면 IMT-2000 ATM 공통호처리부(75)를 통해 이동성처리부(80)를 거쳐 HLR 연동 기능부(90)의 MAP 프로토콜 절차에 따라 실제 이동가입자의 착신 루팅 번지(TLDN)를 얻는다. 그리고 상기 SETUP메시지내의 착신번호 분석결과 유선 ATM 가입자 번호를 가지고 있으면 IMT-2000 ATM 공통호처리부(75)에서 수행하는 정상호 루팅절차에 따라 ATM 호처리 루팅 절차를 수행한다. 교환시스템은 해당 착신가입자가 소속된 교환시스템에 호를 연결시키고 과금절차를 수행한다.When the IMT-2000 mobile subscriber performs an outgoing call to receive the mobile intelligent network service according to the present invention, the RNC interface unit 55 connected to the RNC 15 and the STM-1 level performs the IMT- It transfers to the ATM processing unit 60 of the 2000 ATM switching system to perform ATM processing. At this time, the received message shall use the SETUP message format of Q.2931 or Q.2761 used by wired ATM, and distinguish intelligent network / wired ATM / IMT-2000 mobile call by the number included in it. Signaling ATM Adoptation Layer, Service Specific Connection Oriented Protocol (SSCOP), Service Specific Co-Ordination Function (SSCF), Message Transfer Part (MTP) 3b, Signaling Connection Control Part (SCCP) of the signaling message transmitted from the ATM processor 60 When the message is transmitted to the intelligent network processing determining unit 70 through the signal protocol processing unit 65 performing the processing, the intelligent network processing determining unit 70 receives the called number in the SETUP message transmitted through the signal protocol processing unit 65. If a user has an intelligent network identification number (Detection Point) by performing a triggering process with the SCP (25) through the corresponding Basic Call State Model (BCSM) processing unit 85, the actual mobile call number (IMUI: After performing the process of obtaining the International Mobile User Identity, the mobile forwarding number is transferred to the IMT-2000 ATM common call processing unit 75. On the other hand, if the incoming number analysis result in the setup message has the IMT-2000 identification number (IMUI), the MMT protocol procedure of the HLR interworking function unit 90 passes through the mobility processing unit 80 through the IMT-2000 ATM common call processing unit 75. Accordingly, the actual routing subscriber's incoming routing address (TLDN) is obtained. If the called number analysis result in the SETUP message has a wired ATM subscriber number, the ATM call processing routing procedure is performed according to the normal call routing procedure performed by the IMT-2000 ATM common call processing unit 75. The exchange system connects the call to the exchange system to which the called party belongs and performs the charging procedure.

도 3은 본 발명의 실시예에 따른 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법을 설명하는 흐름도이다.3 is a flowchart illustrating a mobile intelligent network call processing method in a global mobile communication asynchronous transmission mode switch according to an embodiment of the present invention.

본 발명에 의한 IMT-2000 가입자가 지능망호를 발신하면, IMT-2000 ATM 이동교환시스템(20)은 가입자가 연결된 RNC(15)로부터 SETUP 메시지를 수신한다(단계 105). 발신 교환기는 지능망호인지를 판별하는 처리부에서 판별을 수행한 후(단계 110), 지능망호인 경우는 트리거링 처리를 위한 BCSM을 생성하고(단계 115), 실제 착신 어드레스를 얻기 위한 SSF(Signaling Service Function)를 수행하여(단계 120) SCP(25)와의 연동을 통해 실질적인 착신 어드레스를 얻는다(단계 125). 상기 SCP(25)로부터 획득한 착신 어드레스를 가지고 다음 단계 130을 수행한다. 지능망호처리가 끝난 경우이거나 지능망호가 아니라고 판단된 경우에는 IMT-2000 호인지를 판단하고(단계 130), IMT-2000 호인 경우는 착신가입자가 속한 교환시스템의 주소를 알기 위하여 HLR 루팅 절차를 수행하여(단계 135) 착신루팅번지를 수신한다(단계 140). 한편 지능망호 및 IMT-2000호가 아니고 일반 ATM 유선호처리인 경우는 정상호처리 절차를 수행한다(단계 145).When the IMT-2000 subscriber according to the present invention sends an intelligent network, the IMT-2000 ATM mobile switching system 20 receives a SETUP message from the RNC 15 to which the subscriber is connected (step 105). After the originating exchange performs the discrimination in the processing unit for determining whether it is an intelligent network (step 110), in case of an intelligent network, it generates a BCSM for triggering processing (step 115), and a signaling service function (SSF) for obtaining an actual destination address. (Step 120) to obtain the actual destination address through interworking with the SCP 25 (step 125). The next step 130 is performed with the destination address obtained from the SCP 25. If it is determined that the intelligent network process is completed or not, the network is determined to be an IMT-2000 call (step 130). In the case of an IMT-2000 call, the HLR routing procedure is performed to determine the address of the exchange system to which the called party belongs. (Step 135) A call routing address is received (step 140). On the other hand, in case of general ATM wired call processing rather than intelligent network and IMT-2000, normal call processing is performed (step 145).

이상 설명한 바와 같은 본 발명에 의하면, 단말이동성을 갖는 IMT-2000 이동호처리와 서비스이동성을 갖는 지능망 호처리 서비스를 단일의 IMT-2000 ATM 이동교환시스템에서 처리가 가능하게 하고, 이에 따라 IMT-2000 이동통신에서 서비스되는 지능망 처리에 소요 되는 시간을 단축할 수 있다.According to the present invention as described above, it is possible to process the IMT-2000 mobile call processing service having a mobile terminal and the intelligent network call processing service having a service mobility in a single IMT-2000 ATM mobile switching system, accordingly IMT-2000 mobile The time required for processing the intelligent network serviced in communication can be shortened.

한편 본 발명은 상술한 실시예로만 한정되는 것이 아니라 본 발명의 요지를 벗어나지 않는 범위내에서 수정 및 변형하여 실시할 수 있다.On the other hand, the present invention is not limited only to the above-described embodiments, but may be modified and modified without departing from the scope of the present invention.

Claims (4)

가입자로부터의 발신호에 따른 신호메시지를 포함한 ATM셀을 수신하여 그 신호메시지의 번호분별에 의해 상기 수신된 신호메시지의 지능망호/유선 ATM호/IMT-2000이동호를 구분하는 과정과,Receiving an ATM cell including a signal message according to an outgoing signal from a subscriber and distinguishing the intelligent network code / wired ATM / IMT-2000 mobile call of the received signal message by number classification of the signal message; 상기 구분된 호유형에 따라 현재의 신호메시지를 기초로 해당하는 호처리를 수행하는 과정을 구비하는 것을 특징으로 하는 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법.And a process of performing a corresponding call processing based on a current signal message according to the divided call types. 제 1항에 있어서,The method of claim 1, 상기 구분된 호유형이 지능망 호인 경우에는 기본호상태 모델처리수단을 통한 서비스 제어 시스템과의 트리거링처리를 수행하여 실질적인 이동착신번호를 얻는 것을 특징으로 하는 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법.When the classified call type is an intelligent network call, the mobile intelligent network in the global mobile communication asynchronous transmission mode switch, characterized in that the mobile call number is obtained by performing a triggering process with the service control system through the basic call state model processing means. Call processing method. 제 1항에 있어서,The method of claim 1, 상기 구분된 호유형이 유선 ATM호인 경우에는 해당하는 호처리수단에 의해 ATM호처리를 수행시키는 것을 특징으로 하는 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법.If the classified call type is a wired ATM call, the mobile intelligent network call processing method in the global mobile communication asynchronous transmission mode switch, characterized in that ATM call processing is performed by a corresponding call processing means. 제 1항에 있어서,The method of claim 1, 상기 구분된 호유형이 IMT-2000호인 경우에는 해당하는 호처리수단을 통해 이동통신 운용부(MAP)프로토콜 절차에 따라 실제 이동가입자의 착신 루팅번지를 얻는 것을 특징으로 하는 범세계 이동통신 비동기 전송모드 교환기내의 이동 지능망 호처리방법.In case the classified call type is IMT-2000, the global mobile communication asynchronous transmission mode, characterized in that a call routing means obtains an incoming routing address of an actual mobile subscriber according to the MAP protocol procedure. Mobile intelligent network call processing method in exchange.
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