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KR100251629B1 - Method for using d channel with pri interface in ct-2 system - Google Patents

Method for using d channel with pri interface in ct-2 system Download PDF

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KR100251629B1
KR100251629B1 KR1019970043746A KR19970043746A KR100251629B1 KR 100251629 B1 KR100251629 B1 KR 100251629B1 KR 1019970043746 A KR1019970043746 A KR 1019970043746A KR 19970043746 A KR19970043746 A KR 19970043746A KR 100251629 B1 KR100251629 B1 KR 100251629B1
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channel
pri
logical
base station
system data
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KR19990020286A (en
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장관수
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윤종용
삼성전자주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42034—Calling party identification service
    • H04M3/42059—Making use of the calling party identifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE: A method for using the D channel of a CT-2(Codeless Telephone-second generation) incoming system in a PRI(Primary Rate Interface) is provided to prevent a PRI channel from being stopped when system data is loaded up and downloaded. CONSTITUTION: A physical ID and a logical ID are set in a PRI link when a system is installed(101). It is checked whether any system data without relation to a call process is transmitted between the switching center and the base station controller via the D channel(102). When the system data that is not related to the call process is transmitted therebetween, it is checked whether a message responsive to a call request is sent and received(103). If the message corresponding to the call request is exchanged, the logical PRI ID and the channel ID are searched, and thereby a PRI channel is found out(104).

Description

씨티투 착신시스템에서 피알아이 인터페이스 시 디채널 사용방법{METHOD FOR USING D CHANNEL WITH PRI INTERFACE IN CT-2 SYSTEM}METHOD FOR USING D CHANNEL WITH PRI INTERFACE IN CT-2 SYSTEM}

본 발명은 CT-2착신시스템에 관한 것으로, 특히 CT-2착신시스템에서 PRI(Primary Rate Interface) 인터페이스 시 D채널을 확장하여 효율적으로 사용하는 D채널 사용방법에 관한 것이다.The present invention relates to a CT-2 reception system, and more particularly, to a method of using a D-channel that efficiently expands and uses a D channel at a PRI (Primary Rate Interface) interface in a CT-2 reception system.

통상적으로 CT-2(Cordless Telephone Second Genertion)는 발신전용 휴대전화기로서, 기존의 공중교환 전화망(PSTN)교환기의 가입자 선로에 무선기지국을 부착하여 가입자로부터 발신신호를 억세스 하도록 하여 교환기에 가입자 관리시스템을 설치하여 가입자 데이터와 과금 및 통계용 데이터를 관리하도록 되어 있다.In general, CT-2 (Cordless Telephone Second Genertion) is a call-only cell phone. A wireless base station is attached to a subscriber line of an existing public switched telephone network (PSTN) switch to access an outgoing signal from a subscriber. It is installed to manage subscriber data and billing and statistics data.

그런데 종래의 CT-2착신시스템은 1996년 특허출원 82607호 개시되어 있으며, 상기 개시된 종래의 CT-2착신시스템은 도 1과 같이 구성되어 있다.However, the conventional CT-2 destination system is disclosed in 1996 patent application No. 82607, the conventional CT-2 destination system disclosed above is configured as shown in FIG.

도 1에서 SDX-CT2 70은 CT-2가입자에게 실시간으로 데이터 전송 및 착신 서비스를 제공하기 위해 개발된 전전자 교환기로서 NO.7신호처리, PRI(Primary Rate Interface : 이하 PRI라함), BRI(Basic Rate Interface : 이하 BRI라함)맵(MAP)등을 처리할 수 있다. W.L사설자동구내교환기(Wide Location Private Automatic Branch Exchange: 이하 W.L PABX라함) 80은 기지국 제어장치로서, SDX CT-2 70과는 PRI인터페이스를 제공하고, 기지국 20과는 BRI인터페이스를 제공한다. 기지국 20은 RF채널을 통해 다수의 CT-2가입자와 인터페스한다. HLR(Home Location Registration) 90은 모든 CT-2가입자의 이동상황을 기억하고 있는 개인업무용 단말국으로 NO.7신호처리방식으로 SDX-CT2 70와 연결된다. 상기 W.L PABX 80과 SDX CT-2 70간의 PRI인터페이스는 30B+D채널을 사용한다.In Figure 1, SDX-CT2 70 is an electronic switch that was developed to provide data transmission and incoming services to CT-2 subscribers in real time, NO.7 signal processing, PRI (Primary Rate Interface: PRI), BRI (Basic) Rate Interface: hereinafter referred to as BRI) Map (MAP) can be processed. Wide Location Private Automatic Branch Exchange (W.L PABX) 80 is a base station controller, which provides a PRI interface with SDX CT-2 70 and a BRI interface with base station 20. Base station 20 interfaces with multiple CT-2 subscribers via an RF channel. Home Location Registration (HLR) 90 is a personal service terminal station that remembers all CT-2 subscribers' movements. It is connected to SDX-CT2 70 by NO. The PRI interface between the W.L PABX 80 and the SDX CT-2 70 uses 30B + D channels.

이러한 종래의 CT-2 착신시스템은 사업자의 회선사용 효율을 높이기 위해 별도의 데이터 채널사용이 요구되어 W.L PABX 80과 SDX CT-2 70간의 PRI인터페이스를 사용하게 되는데, D채널과 B채널이 밀결합(Tight Connection)되어 있기 때문에 특정한 D채널이 시스템 데이터(Black List, 기지국 제어관련 데이터)가 업로딩 또는 다운로딩에 사용되는 경우에 해당 PRI 채널이 일시 중단되는 경우가 발생하여 초기의 회선사용 효율성이 떨어지는 문제점이 있었다.The conventional CT-2 receiving system is required to use a separate data channel in order to improve the line usage efficiency of the operator to use the PRI interface between the WL PABX 80 and SDX CT-2 70, D-channel and B-channel is tightly coupled Because of the Tight Connection, when a specific D channel is used for uploading or downloading system data (Black List, base station control related data), the corresponding PRI channel may be suspended. There was a problem.

따라서 본 발명의 목적은 밀결합되어 있는 CT-2착신시스템에서 모든 D채널을 이용하여 교환기와 기지국제어치간에 연결되어 있는 모든 타임슬롯을 제어할 수 있도록 하여 시스템 데이터가 업로딩되거나 다운로딩될 시 PRI채널의 중단을 방지할 수 있는 D채널 사용방법을 제공함에 있다.Accordingly, an object of the present invention is to control all timeslots connected between an exchange and a base station control value by using all D-channels in a tightly coupled CT-2 reception system, so that when system data is uploaded or downloaded, The present invention provides a method of using a D channel to prevent interruption of a channel.

도 1은 종래의 CT-2착신시스템의 구성도1 is a block diagram of a conventional CT-2 incoming system

도 2는 본 발명의 실시예에 따른 D채널을 사용하기 위한 PRI채널 처리장치의 구성도이고,2 is a block diagram of a PRI channel processing apparatus for using a D channel according to an embodiment of the present invention,

도 3은 본 발명의 실시예에 따른 D채널을 사용하기 위한 제어흐름도이며,3 is a control flowchart for using a D channel according to an embodiment of the present invention,

도 4는 본 발명의 실시예에 따른 PRI 메시지 테이블 구성도4 is a configuration diagram of a PRI message table according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 D채널을 사용하기 위한 PRI채널 처리장치의 구성도이고,2 is a block diagram of a PRI channel processing apparatus for using a D channel according to an embodiment of the present invention,

도 3은 본 발명의 실시예에 따른 D채널을 사용하기 위한 제어흐름도이며,3 is a control flowchart for using a D channel according to an embodiment of the present invention,

도 4는 본 발명의 실시예에 따른 PRI 메시지 테이블 구성도이다.4 is a configuration diagram of a PRI message table according to an embodiment of the present invention.

Protocal discriminator는 교환기과 기지국제어장치간의 주고받는 메시지이고, Message Type은 교환기과 기지국제어장치간의 사용자 정보를 사용한다. Link ID는 교환기와 기지국 제어장치간의 Logical PRI number를 나타내고, Channel ID는 PRI내에서의 타임슬롯 번호를 나타낸다. 호정보 및 데이터 정보는 호제어에 사용되는 데이터 및 각종 정보를 나타낸다.A protocol discriminator is a message exchanged between an exchange and a base station controller. The message type uses user information between the exchange and the base station controller. The Link ID indicates the Logical PRI number between the switch and the base station controller, and the Channel ID indicates the timeslot number within the PRI. The call information and data information represent data and various kinds of information used for call control.

상술한 도 1 내지 도 4를 참조하여 본 발명의 바람직한 실시예의 동작을 상세히 설명한다.1 to 4, the operation of the preferred embodiment of the present invention will be described in detail.

101단계에서 시스템설시에 E1트렁크 7,8에 피지컬 ID와 로지컬 ID를 설정한다. 예를들어 E1트렁크 7은 로지컬 ID가 0이고, E1트렁크 8은 로지컬 ID가 1로 설정할 수 있다. 이렇게 새로운 데이터를 정의한 후 102단계에서 교환기인 SDX-CT2 70과 기지국 제어장치 80간의 D채널이 시스템 데이터 전송중인가 검사한다. 즉, Black List, 기지국 제어관련데이터를 전송하고 있는지 검사한다. Black List, 기지국 제어관련데이터를 전송하고 있으면 103단계로 진행하여 호출요구에 의한 해당 메시지 송수신이 있는가 검사하여 해당 메시지 송수신이 있으면 104단계로 진행한다. 상기 104단계에서 도 4와 같은 메모리의 Link-ID에 저장되어 있는 로지컬 PRI번호와 Channel-ID를 고려하여 해당 PRI 채널을 찾는다.예를들어 E1트렁크 7를 통해 디채널과 무관한 시스템 데이터를 전송중일 경우 E1 트렁크 8을 통해 할당되어 있는 PRI채널을 찾는다.그런 후105단계에서 상기 E1트렁크 8을 통해 할당된 PRI채널을 호에 사용되는 PRI채널로 지정하여 호처리에 사용되는 메시지를 송수신 하여 시그널링을 처리하므로 SDX-CT2 70과 W.L PABX 80간에 특정한 D채널이 시스템 데이터(Black List, 기지국 제어관련 데이터)가 업로딩 또는 다운로딩에 사용되는 경우에 해당 PRI 채널이 일시 중단되지 않도록 한다. In step 101, a physical ID and a logical ID are set to E1 trunk 7,8 at system setup. For example, E1 trunk 7 can have a logical ID of 0 and E1 trunk 8 can have a logical ID of 1. After defining the new data, in step 102, it is checked whether the D channel between the SDX-CT2 70, the switch, and the base station controller 80 is transmitting system data. That is, it checks whether black list and base station control related data are transmitted. If the black list and the base station control-related data are being transmitted, the process proceeds to step 103 and checks whether there is a corresponding message transmission or reception due to a call request. In step 104, the corresponding PRI channel is found in consideration of the logical PRI number and the Channel-ID stored in the Link-ID of the memory as shown in FIG. For example, when transmitting system data irrelevant to a de-channel through E1 trunk 7, the PRI channel allocated through E1 trunk 8 is searched. Thereafter, in step 105, the PRI channel allocated through the E1 trunk 8 is designated as the PRI channel used for the call, and the signaling process is performed by transmitting and receiving a message used for call processing. When this system data (Black List, base station control related data) is used for uploading or downloading, the corresponding PRI channel is not suspended.

상술한 바와 같이 본 발명은, 대량의 시스템 데이터 즉, 블랙리스트 업로딩 데이터, 다운로딩 데이터등의 전달이 요구되는 시점에서 교환기와 기지국제어장치간의 PRI채널 사용에 제한을 받지 않고 네트워크 구성을 효율적으로 사용할 수 있는 이점이 있다.As described above, the present invention can efficiently use the network configuration without being limited to the use of the PRI channel between the exchange and the base station controller when a large amount of system data, i.e., blacklist uploading data, downloading data, etc. is required. There is an advantage to this.

Claims (1)

CT-2 착신시스템에서 PRI 인터페이스 시 D채널을 사용하는 방법에 있어서,In the method of using the D channel at the PRI interface in the CT-2 destination system, 시스템 설치시 PRI링크에 피지컬 ID와 로지컬 ID를 설정하는 과정과,Setting up a physical ID and a logical ID on the PRI link during system installation; 상기 피지컬 ID와 로지컬 ID를 설정한 후 교환기와 기지국 제어장치간에 디채널을 통해 호처리와 관련없는 시스템 데이터를 전송하는지 검색하는 과정과,Setting up the physical ID and the logical ID and searching for transmission of system data unrelated to call processing between the exchange and the base station controller through a dechannel; 상기 디채널을 통해 호처리와 관련없는 시스템 데이터를 전송할 시 호출요구에 의한 해당 메세지 송수신이 있는지 검출하는 과정과,Detecting whether a corresponding message is transmitted or received by a call request when transmitting system data not related to call processing through the dechannel; 상기 호출요구에 의한 해당 메세지 송수신이 있을 시 상기 설정되어 있는 로지컬 PRI ID와 채널 ID를 검색하여 해당 PRI채널을 찾는 과정과,Searching for a corresponding PRI channel by searching the set logical PRI ID and channel ID when the message is transmitted and received by the call request; 상기 찾은 PRI채널로 호처리에 따른 해당 메세지를 송수신하여 시그널링을 처리하는 과정으로 이루어짐을특징으로 하는 CT-2 착신시스템에서 PRI 인터페이스 시 When the PRI interface in the CT-2 receiving system, characterized in that the process of signaling by transmitting and receiving the corresponding message according to the call processing to the found PRI channel D채널 사용방법.How to use D channel.
KR1019970043746A 1997-08-30 1997-08-30 Method for using d channel with pri interface in ct-2 system KR100251629B1 (en)

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