KR920009229B1 - Control method of outter changing call - Google Patents
Control method of outter changing call Download PDFInfo
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- KR920009229B1 KR920009229B1 KR1019900011810A KR900011810A KR920009229B1 KR 920009229 B1 KR920009229 B1 KR 920009229B1 KR 1019900011810 A KR1019900011810 A KR 1019900011810A KR 900011810 A KR900011810 A KR 900011810A KR 920009229 B1 KR920009229 B1 KR 920009229B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q3/00—Selecting arrangements
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Abstract
Description
제1도는 본 발명이 적용되는 하드웨어 시스템의 구성도.1 is a block diagram of a hardware system to which the present invention is applied.
제2도는 본 발명의 흐름도.2 is a flow chart of the present invention.
본 발명은 국제전신전화자문위원회(CCTTT)에서 권고한 국제적인 통신 프로토콜인 No.7 공통선 신호방식(CCS No.7)을 사용하여 전전자 교환기 시스템에 출중계호를 제어하는 방법에 관한 것이다.The present invention relates to a method for controlling an outgoing call in an all-electronic switching system using No. 7 common line signaling (CCS No. 7), an international communication protocol recommended by the International Telegraph and Telephone Advisory Committee (CCTTT).
정보통신의 역할의 비중이 높아지고 단순한 음성위주의 정보 소통뿐만 아니라 다양한 매체와 빠르고 정확한 전송을 요구하는 이용자의 요구가 증가함에 따라 이러한 욕구를 충족시키기 위하여 종합정보 통신망(ISDN)의 서비스가 필요하게 되었고, 기존의 R2 신호방식을 사용하는 중계호에서는 종합정보통신망이 제공하는 다양한 서비스를 가입자에게 제공이 불가능하다.As the role of information and communication has increased and the demands of users who demand fast and accurate transmission as well as simple voice-oriented information communication have increased, services of the Integrated Information Network (ISDN) have been needed to meet these needs. However, it is impossible to provide subscribers with various services provided by the integrated information and communication network in the relay call using the existing R2 signaling.
따라서, 상기 문제점을 해결하기 위해 안출된 본 발명은 CCS No.7 신호방식으로 출중계호에 대한 제어 기능을 소프트웨어적으로 구현하여 종합정보통신망 사용자부(ISUP) 신호방식과 연동하여 음성 및 비음성의 회선 교환 서비스를 제공하는데 그 목적을 두고 있다.Therefore, the present invention devised to solve the above problems implements the control function for outgoing call with software using CCS No.7 signaling method, and integrates voice and non-voice in conjunction with ISUP signaling method. Its purpose is to provide circuit switched services.
이하 첨부된 도면을 참조하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제1도는 전전자 교환기 시스템에서 CCS No.7 신호방식으로 대국간의 중계호 기능을 수행하기 위한 하드웨어 구성도로서 크게 CCS-TIM(Common Channel Signalling-Trunk Interface Module)[1]과 GSM(Group Switch Module)[2]개의 모듈로 구분되며, GSM은 교환기내 2,048Mbps의 PCM(32 Time Slot) 128개를 다중화한 4,096 타임 슬롯에 대한 교환을 한 후 다시 PCM 서브 하이웨이 128개로 분배하는 기능을 수행하는 스위치 네트워크[3]와 이들 하드웨어를 제어하는 SWP(Switch-ing Processor)[4]로 구성된다.FIG. 1 is a hardware configuration diagram for performing relay call function between CCS No.7 signaling system in all electronic switch system. It is mainly CCS-TIM (Common Channel Signaling-Trunk Interface Module) [1] and GSM (Group Switch Module) GSM is divided into two modules, and the switch performs the function of distributing 4,096 time slots multiplexed with 128 PCMs (32 time slots) of 2,048 Mbps in the switch and then distributing them to 128 PCM sub highways. It consists of a network [3] and a switch-ing processor (SWP) [4] that controls these hardware.
CCS-TIM은 크게 DTLP(ISDN Trunk Line Processor)[5], MTP(Message Transfer Part)[6], 그리고 CEPT(Conference of European Postal Telecommunications administration)방식 중계선[7]으로 구성된다.CCS-TIM consists of ISDN Trunk Line Processor (DTLP) [5], MTP (Message Transfer Part) [6], and CEPT (Conference of European Postal Telecommunications administration) relay line [7].
DTLP는 CCS No.7 신호 방식의 중계선 제어부[8]와 ISUP(ISDN User Part)[9] 기능을 갖고 있고, 중계선 제어부는 입증계호 제어부[10]와 출중계호 제어부[11]로 구성되어 있고, ISUP는 CPC(Call Processing Control)[12], CSC(Call Supervision Control)[13], 그리고 SPRC(Signalling Procedure Control)[4]로 구성되어 기능 수행을 한다. 그 하위 프로세서는 신호로를 전담하는 CCSP(Common Channel Signalling Processor)[15], ST(Sigalling Termination)[16]과 통화로를 전담하는 DTCP(Digital Trunk Control Processor)[17], DTIC(Digital Trunk Interface Circuit)[18]로 구성되어 CEPT 방식 중계선을 지원한다. 그 중 TCCO(Trunk Call Control for Outgoing)는 ISUP의 CPOC(Call Processing Control for Outgoing)의 기능과의 정합을 통하여 CCS No.7 신호방식으로 출중계 호에 대한 제어기능을 수행한다.DTLP has a CCS No.7 relay system control section [8] and ISUP (ISDN User Part) [9] functions, the relay control section is composed of a proven call control section [10] and outgoing call control section [11], ISUP consists of Call Processing Control (CPC) [12], Call Supervision Control (CSC) [13], and Signaling Procedure Control (SPRC) [4]. Its subprocessors include the Common Channel Signaling Processor (CCSP) [15], the Sigalling Termination (ST) [16], and the Digital Trunk Control Processor (DTCP) [17], and the Digital Trunk Interface (DTIC). Circuit) [18] to support CEPT relay. Among them, TCCO (Trunk Call Control for Outgoing) performs outgoing call control by CCS No.7 signaling method through matching with ISUP's function of Call Processing Control for Outgoing (CPOC).
제2도는 공통선 신호방식에서는 시그널링 채널과 데이터 채널이 분리되어 있기 때문에 교환기가 시동을 할 때[19] 트렁크 회선의 특정 채널인 시그널링 채널은 교환기내의 ST(Signalling Termination)로 반영구적인 회로를 접속시켜 줄 필요가 있다[20]. 가입자가 타국으로 호를 시도할 때 중계선을 사용하게 되는데 출중계호 효구시[21] 국번번역을 하여 기존 일반가입자에게 시도하는 호에 대하여는 기존 R2 신호방식으로 중계를 하며[22], ISDN 가입자에게 시도하는 호에 대하여는 CCS No.7 신호 방식으로 중계를 하고[23], 호의 진행이 가능한지 검사를 하게 되는데[24] 사용 가능한 채널을 식별하여 호의 진행이 불가능하면 에러처리 및 종료[25]를 하고 호의 진행이 가능하면 채녈과 회선 관련 테이블을 변경한 수[26] 스위치를 요구한다[27]. 스위치가 정상적으로 연결이 되면 [28], CCS No.7 신호 방식으로 중계호를 제어하기 위하여는 발신 가입자의 유형에 따라[29] 기존의 일반 아나로그 가입자인 경우에 발신신호를 가입자 프로세서에 요구하여[30] 발신번호를 수신한 후[31], 착신 번호를 요구하여[32] 착신번호를 1 디지트(digit)씩 수신하게 되며[33], ISDN 가입자인 경우에는 호 설정에 필요한 정보를 ISDN 가입자 프로세서에 요구[34]하여 호 설정에 필요한 착/발신 번호와 착/발신 부번호(sub address), 순방향호 표시부, 전송매체 요구 표시부, 사용자간 서비스정보, 사용자간 접속정보등을 수신하여[35] CCTTT 권고안 Q.763에 따라 일괄 송출방식(en-bloc)으로 호 설정 요구(setup request)의 프리미티브를 ISUP(ISDN User Part) 중의 CPCO를 호출하면서 파라미터로 넘겨준다[36]. ISUP은 상대국으로 초기번지메시지(IAM)을 전송하고 상대국으로부터 번지완료메시지(ACM)를 받은 후 TCCO로 프리미티브를 넘겨주는데[37] 프리미티브를 분석[38]하여 "호출표시"인 경우 가입자에게 호출통보를 하고[39], "밴드내 정보 표시"인 경우 가입자에게 안내방송통보[40]를 한 후 수신방향 통화로를 연결하고[41] 응답메시지 대기상태[42]로 된다.2, signaling channel and data channel are separated in common line signaling, so when switching is started [19], signaling channel, which is a specific channel of trunk circuit, connects semi-permanent circuit through ST (Signalling Termination) in exchange. Need to be made [20]. When a subscriber attempts to call to another country, a relay line is used. For a call that is attempted to existing subscribers by translating the number of outgoing call Hyo-gu [21], the subscriber is relayed using the existing R2 signaling method [22], and attempted to ISDN subscriber. The call is relayed using CCS No.7 signaling [23], and the call is checked for possible progress [24]. The available channel is identified and error processing and termination [25] is performed if the call is not possible. If it is possible to do so, it may require a switch to change the channel and circuit tables [26]. When the switch is connected normally [28], in order to control the relay call using CCS No.7 signaling, depending on the type of the calling subscriber [29], the calling processor is required to request the calling signal from the existing analog subscriber. [30] After receiving the calling number [31], the calling party requests the incoming number [32] and receives the incoming number by one digit [33]. [34] requests the processor [34] to receive a called / calling number, a called / calling sub-number, a forward call display section, a transmission medium request display section, service information between users, connection information between users, etc. ] According to CCTTT Recommendation Q.763, the primitive of the setup request is passed as a parameter by calling CPCO in ISUP (ISDN User Part) in en-bloc [36]. The ISUP sends the initial address message (IAM) to the other station, receives the address completion message (ACM) from the other station, and passes the primitive to the TCCO [37]. The primitive is analyzed [38]. [39], in the case of “in-band information display”, informs the subscriber of the announcement announcement [40], then connects the receiving call channel [41] and enters the response message waiting state [42].
상대국으로부터 응답메시지(ANM)를 받게 되면 ISUP은 프리미티브 "호 설정 확인"을 TCCO로 넘겨주어[43] 발신가입자에게 통화시작이라고 통보하고[44] 상태를 발신통화중으로 되어 음성 및 비음성 통신 서비스를 제공[45]하게 된다. 발신통화중 상태에서 복구는 착신측 복구와 발신측 복구로 분류되는데 프리미티브로 "해제표시"가 오는 경우 착신측 복구로[46] ISUP으로 프리미티브 "해제응답"을 주고[47] 가입자 프로세서에 해제요구를 하고[48] 스위치 절단 및 회선관련 데이터를 초기화[49]시키고 종료한다. 가입자 프로세서로부터 "발신복구요구"를 받을 경우[50] ISUP으로 프리미티브 "해제요구"를 주고[51] 해제완료대기상태[52]로 있다가 ISUP으로부터 프리미티브 "해제완료확인"을 수신하면 [53] 해제처리[54]를 하고 종료[55]한다.When receiving an answer message (ANM) from the other station, ISUP passes the primitive call setup confirmation to the TCCO [43] and notifies the calling party that the call is initiated [44] and the status of the outgoing call to provide voice and non-voice communication services. Provided [45]. In the outgoing call state, recovery is classified into called party recovery and calling party recovery. If a release indication is indicated by a primitive, the recipient recovery response is sent to the called party recovery [46] and the subscriber processor is requested to release it. [48] and the switch disconnection and line related data are initialized [49] and terminated. When receiving an outgoing call recovery request from a subscriber processor [50], the ISUP sends a primitive release request [51] to the release complete wait state [52] and receives a primitive release completion confirmation from the ISUP [53]. The cancel process 54 is completed and the process ends 55.
본 발명은 상기와 같이 구성되어 기능을 수행함에 따라 64Kbps 디지틀 선로를 제공할 수 있게 되고, CCS No.7 신호 방식으로 국간 중계를 가능하게 하여 음성 및 비음성의 회선교환 서비스를 제공함에 따라 각종 망 서비스 제공을 위한 통신망의 능력을 보유하여 통신망의 운용 효율을 향상시킬 수 있으며 종합정보 통신망 기반 구축을 할 수 있다.The present invention is configured as described above can provide a 64Kbps digital line as performing the function, it is possible to relay between stations by the CCS No.7 signaling system to provide voice and non-voice circuit switched services to various networks With the ability of the communication network to provide services, it is possible to improve the operation efficiency of the communication network and to establish a comprehensive information network base.
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