KR20020095575A - Method for addressor allotment for virtual channel connection in ATM network - Google Patents

Method for addressor allotment for virtual channel connection in ATM network Download PDF

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KR20020095575A
KR20020095575A KR1020010033671A KR20010033671A KR20020095575A KR 20020095575 A KR20020095575 A KR 20020095575A KR 1020010033671 A KR1020010033671 A KR 1020010033671A KR 20010033671 A KR20010033671 A KR 20010033671A KR 20020095575 A KR20020095575 A KR 20020095575A
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base station
atm
station
cell
communication
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KR1020010033671A
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Korean (ko)
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유동열
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주식회사 하이닉스반도체
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5685—Addressing issues

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE: A method for assigning an address for accessing a virtual channel in an ATM network is provided to set a virtual access channel to an ATM end point only from an ATM start point, and to set VCs(Virtual Circuits) by using an SVC(Switched Virtual Circuit) system, thereby easily assigning the VCs. CONSTITUTION: A mobile communication system decides whether communication is performed inside a base station(S101), and assigns VPI/VCI to an ATM end point from a base station channel card according to a decided result(S103). The system fixes assigned VP/VC values, and transmits data in the base station(S105). The system decides whether an ATM cell is transmitted to a control station(S107). If so, the system transmits data including a destination address that has to arrive within an information area of a cell(S109). If the communication is not performed inside the base station, the system decides whether the communication is performed between the base station and the control station(S111). If so, the system sets VCs between ATM nodes(S113). The system decides whether an ATM cell is transmitted to the base station(S115). If so, the system sets the VP/VC values in the ATM cell, and transmits the data(S117).

Description

에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법{Method for addressor allotment for virtual channel connection in ATM network}Method for addressor allotment for virtual channel connection in ATM network

본 발명은 이동통신 시스템에서 주소할당 방법에 관한 것으로서, 특히 기지국 내부에서는 PVC(Permanet Virtual Circuit) 방식을 채용하고 기지국과 제어국간에는 SVC(Switchde Virtual Circuit) 방식을 사용함으로써 PVC를 사용하는 구간에서는 신호절차 없이 콘넥션 셋업(Connection setup)이 이루어지고 SVC를 사용하는 구간에서는 일정수의 어드레스만으로도 VP/VC를 재사용할 수 있도록 한 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법에 관한 것이다.The present invention relates to an address allocation method in a mobile communication system. In particular, the base station adopts a Permanent Virtual Circuit (PVC) method and uses a Switched Virtual Circuit (SVC) method between a base station and a control station to signal in a section using PVC. The present invention relates to an address allocation method for virtual channel access in an ATM network that allows a connection setup to be performed without a procedure and reuses a VP / VC with only a certain number of addresses in a section using SVC.

일반적으로 이동통신 시스템은 사람, 자동차, 선박, 열차, 항공기등 이동체를 대상으로 하는 통신 시스템으로, 이에는 이동전화(휴대전화, 차량전화), 항만전화, 항공기전화, 이동공중전화(열차, 유람선, 고속버스 등에 설치), 무선호출, 무선전화, 위성이동통신, 아마추어무선, 어업무선등이 포함된다.In general, the mobile communication system is a communication system for mobile devices such as people, cars, ships, trains, and aircrafts, including mobile phones (mobile phones, vehicle phones), port phones, aircraft phones, and mobile public phones (trains, cruise ships). , Installed on express buses), radio calls, radiotelephones, satellite mobile communications, amateur radio, fishing services.

이러한 이동통신에는 아날로그 방식을 사용하는 AMPS(Advanced Mobile Phone Service)시스템, 디지털 방식을 사용하는 CDMA 및 TDMA(Time Division Multiple Access, 시분할 다원 접속)시스템, FDMA(Frequency Division Multiple Access, 주파수 분할 다원접속)시스템 등이 있고, PCS(Personal Communication System, 개인 휴대통신)와 IMT-2000(International Mobile Telecommunication in the year 2000, 범세계 이동통신)등의 시스템이 사용되고 있다.These mobile communications include the Advanced Mobile Phone Service (AMPS) system using analog methods, the CDMA and TDMA (Time Division Multiple Access) systems using digital methods, and the Frequency Division Multiple Access (FDMA) systems. Systems, and systems such as PCS (Personal Communication System) and IMT-2000 (International Mobile Telecommunication in the year 2000).

도 1은 일반적인 이동통신 시스템의 블록 구성도이다.1 is a block diagram of a general mobile communication system.

도 1에 도시된 바와 같이, 이동국(MS)(10)은 기지국(BTS)(20)과 무선으로 통신을 수행하며, 특히 이동중 통화가 가능하다. 기지국(20)은 제어국(BSC)(30)의 제어에 따라 상기 이동국(10)과 무선으로 통신을 수행하며, 제어국(30)은 상기 기지국(20)을 제어한다. 교환국(MSC)(40)은 상기 이동국(10)에서 송신된 신호는 타국 또는 다른 통신망으로 스위칭 해주고, 타국 또는 다른 통신망에서 송신된 신호는 스위칭 하여 상기 이동국(10)측에 연결해준다.As shown in FIG. 1, a mobile station (MS) 10 communicates wirelessly with a base station (BTS) 20, and in particular, a mobile call is possible. The base station 20 performs wireless communication with the mobile station 10 under the control of a control station (BSC) 30, and the control station 30 controls the base station 20. The switching center (MSC) 40 switches the signal transmitted from the mobile station 10 to another station or another communication network, and switches the signal transmitted from another station or another communication network to the mobile station 10 side.

한편, 에이티엠 네트워크에서 VPI(Virtual Path Identifier)/VCI(Virtual Channel Identifier)를 할당하는 방법은 크게 두가지로 분류된다. 첫째는 소스와 목적지 사이의 가상 접속이 이루어진 후, 네트워크 관리 설정이나 데이터의 움직임이 일관되게 전송하는 PVC(Permanet Virtual Circuit) 방식과 콘넥션이 미리 정의 되지 않고 시그널링 프로토콜 절차에 따라 가상 채널을 설정하여 콘넥션을 연결하고, 통신 세션이 끝나고 나면 그 연결을 해제하여 불필요한 대역폭을 차지를 방지하는 SVC(Switchde Virtual Circuit) 방식이 있다.Meanwhile, a method of allocating a virtual path identifier (VPI) / virtual channel identifier (VCI) in an AT network is classified into two types. First, after the virtual connection between the source and the destination is established, the Permanent Virtual Circuit (PVC) method that consistently transmits network management settings or data movements and the connection are not defined in advance, and the virtual channel is set according to the signaling protocol procedure. There is a Switched Virtual Circuit (SVC) method that connects a connection and disconnects it after the communication session is over to prevent unnecessary bandwidth.

그러나, 종래에는 PVC를 사용할 경우, 이동통신 시스템의 에이티엠 노드에 가상 접속 채널(VPI/VCI)를 미리 할당해야 하고 할당 원칙에 따라 데이터를 전송함으로써, 시그널링이 없이 미리 정의된 가상 접속 채널을 사용하기 때문에 SVC 방식보다 성능은 좋지만, 에이티엠 앤드 포인트(ATM and Point)간 모든 VC(Virtual Circuit) 연결을 메뉴얼로 설정해야 하기 때문에 에이티엠 노드가 많은 망은 VC할당이 어려운 문제점이 있었다.However, conventionally, when using PVC, the virtual access channel (VPI / VCI) must be allocated to the ATM node of the mobile communication system in advance and data is transmitted according to the allocation principle, thereby using a predefined virtual access channel without signaling. Because the performance is better than the SVC method, but all the VC (Virtual Circuit) connection between the ATM and the point (Manual VC) connection has to be set manually, so there is a problem that the VC allocation is difficult in the network with many ATM nodes.

또한, SVC를 사용할 경우, 이동통신 시스템의 각 노드에 가상 접속 채널을 미리 할당 하지 않고, 에이티엠 어드레스를 갖는 에이티엠 노드간에 시그널링을 통하여 설정된 가상 접속 채널로 데이터를 전송함으로써, 시그널링을 통하여 자동적으로 VC가 설정되기 때문에 에이티엠 모드가 많은 망에서도 VC설정에 문제가 없지만, 시그널링을 사용하기 때문에 성능이 저하되는 문제점이 있었다.In addition, in the case of using SVC, the data is automatically transmitted through signaling by transmitting data to the virtual access channel set through signaling between the ATM nodes having an AT address without pre-allocating the virtual access channel to each node of the mobile communication system. Since VC is set, there is no problem in VC setting even in a network having many ATM modes, but there is a problem in that performance is degraded because signaling is used.

따라서, 본 발명은 상기한 종래 기술에 따른 문제점을 해결하기 위하여 안출한 것으로 본 발명의 목적은, 기지국 내부에서는 PVC(Permanet Virtual Circuit) 방식을 채용하고 기지국과 제어국간에는 SVC(Switchde Virtual Circuit) 방식을 사용함으로써 PVC를 사용하는 구간에서는 신호절차 없이 콘넥션 셋업(Connection setup)이 이루어지고 SVC를 사용하는 구간에서는 일정수의 어드레스만으로도 VP/VC를 재사용할 수 있도록 한 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법을 제공함에 있다.Accordingly, the present invention has been made to solve the above-described problems according to the prior art, an object of the present invention is to adopt a PVC (Permanet Virtual Circuit) method in the base station and the Switched Virtual Circuit (SVC) method between the base station and the control station Connection setup is done without signal procedure in the section using PVC, and virtual channel connection is made in the ATM network that allows VP / VC to be reused with only a certain number of addresses in the section using SVC. To provide an address allocation method for

상기한 목적을 달성하기 위한 본 발명에 따른 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법의 특징은,Features of the address allocation method for virtual channel access in the AT network according to the present invention for achieving the above object,

기지국 및 제어국을 구비하고 있는 이동통신 시스템의 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법에서 있어서,In the address allocation method for the virtual channel access in the AT network of a mobile communication system having a base station and a control station,

기지국내부 통신인지 판단하고, 그 판단결과 기지국 채널카드에서 ATM 종단까지 가상 접속 채널(VPI/VCI)을 할당하는 단계와;Determining whether it is internal communication of the base station, and as a result of allocating a virtual access channel (VPI / VCI) from the base station channel card to the ATM end;

상기 할당된 VP/VC 값을 고정한후 PVC방식을 채용한 구간에 할당 원칙에 따라 기지국내에서 데이터를 전송하는 단계와;Fixing the assigned VP / VC value and transmitting data in a base station according to an allocation principle in a section employing a PVC method;

상기 단계 수행후, 제어국으로 ATM 셀 전송인지 판단하고, 그 판단결과 제어국으로 셀 데이터 전송이면 셀 내부의 인포메이션(INFORMATION) 영역에 도착해야 할 목적지 주소를 포함하여 데이터를 전송하는 단계와;After performing the above steps, determining whether the ATM station transmits the cell to the control station, and if the cell data is transmitted to the control station, transmitting data including a destination address to arrive at an information area inside the cell;

기지국내부 통신이 아니면 기지국과 제어국간의 통신인지 판단하고 그 판단결과 기지국과 제어국간의 통신이면, SVC방식을 사용하여 ATM 노드간에 시그널링 과정을 통해 VC를 설정하는 단계와;Determining whether the communication is between the base station and the control station if the communication is not internal to the base station, and if the communication result is between the base station and the control station, setting the VC through a signaling process between ATM nodes using the SVC method;

상기 단계 수행후, 기지국으로 ATM 셀 전송인지 판단하고, 그 판단결과 기지국으로 ATM 셀 데이터 전송이면 시그널링 과정을 통해 목적지에 이를 수 있는 VP/VC 값을 ATM 셀에 셋팅한 후 데이터를 전송하는 단계를 포함하여 이루어진다.After performing the above step, it is determined whether the ATM cell transmission to the base station, and if the determination result is ATM cell data transmission to the base station, the step of transmitting the data after setting the VP / VC value that can reach the destination through the signaling process in the ATM cell It is made to include.

도 1은 일반적인 이동통신 시스템의 블록 구성도,1 is a block diagram of a general mobile communication system;

도 2는 본 발명이 적용되는 이동통신 시스템의 블록 구성도,2 is a block diagram of a mobile communication system to which the present invention is applied;

도 3은 본 발명에 따른 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법을 나타낸 흐름도이다.3 is a flowchart illustrating an address allocation method for virtual channel access in an AMT network according to the present invention.

도 4는 PVC 방식을 채용한 구간에서 할당되는 VP/VC 값을 나타낸 구조도이다.4 is a structural diagram showing a VP / VC value allocated in a section employing the PVC method.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 이동국10: mobile station

20 : 기지국20: base station

30 : 제어국30: control station

40 : 교환국40: exchange office

이하, 본 발명에 따른 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법의 바람직한 실시예를 첨부한 도면을 참조하여 설명하면 다음과 같다.Hereinafter, a preferred embodiment of an address allocation method for virtual channel access in an AMT network according to the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명이 적용되는 이동통신 시스템의 블록 구성도이다.2 is a block diagram of a mobile communication system to which the present invention is applied.

도 2에 도시된 바와 같이, 참조부호 100은 기지국을 나타내고, 참조부호 200은 상기 기지국(100)을 제어하는 제어국을 나타낸다.As shown in Fig. 2, reference numeral 100 denotes a base station, and reference numeral 200 denotes a control station for controlling the base station 100.

그리고, 참조부호 300, 400은 채널카드를 나타낸다.Reference numerals 300 and 400 denote channel cards.

상기와 같이 구성된 이동통신 시스템에서의 주소 할당방법을 도 3을 참조하여 설명하면 다음과 같다.An address allocation method in the mobile communication system configured as described above will be described with reference to FIG. 3.

먼저, 기지국내부 통신인지 판단하고(S101), 그 판단결과 기지국 채널카드에서 ATM 종단까지 가상 접속 채널(VPI/VCI)을 할당한다(S103).First, it is determined whether the internal communication of the base station (S101), and as a result of allocating a virtual access channel (VPI / VCI) from the base station channel card to the ATM end point (S103).

이때, 상기 할당된 VP/VC 값을 고정한후 PVC방식을 채용한 구간에 할당 원칙에 따라 도 4에 도시된 바와 같이, 기지국내에서 데이터를 전송한다(S105).In this case, as shown in FIG. 4, data is transmitted in the base station according to the assignment principle after fixing the assigned VP / VC value in the PVC scheme.

그리고, 제어국으로 ATM 셀 전송인지 판단하고(S107), 그 판단결과 제어국으로 셀 데이터 전송이면 셀 내부의 인포메이션(INFORMATION) 영역에 도착해야 할 목적지 주소를 포함하여 데이터를 전송한다(S109),Then, it is determined whether the ATM cell is transmitted to the control station (S107). If the cell data is transmitted to the control station as a result of the determination, the data is transmitted including the destination address to be arrived at the information area inside the cell (S109).

한편, 상기 S101의 판단결과 기지국내부 통신이 아니면 기지국과 제어국간의 통신인지 판단한다(S111).On the other hand, the determination result of the step S101 determines whether or not the communication between the base station and the base station and the control station (S111).

상기 S111의 판단결과 기지국과 제어국간의 통신이면, SVC방식을 사용하여 ATM 노드간에 시그널링 과정을 통해 VC를 설정한다(S113).As a result of the determination of S111, if communication is performed between the base station and the control station, the VC is set through a signaling process between ATM nodes using the SVC method (S113).

이때, 도 4에 도시된 바와 같이, SVC 시그널링/AAL처리를 수행한다.At this time, as shown in FIG. 4, SVC signaling / AAL processing is performed.

그리고, 기지국으로 ATM 셀 전송인지 판단하고(S115), 그 판단결과 기지국으로 ATM 셀 데이터 전송이면 시그널링 과정을 통해 목적지에 이를 수 있는 VP/VC 값을 ATM 셀에 셋팅(소오스(SOURCE)측에서 디스테이션(DESTINATION)측으로 데이터를 전송할 때는 시그널링 과정을 통하여 디스테이션에 이를 수 있는 VP/VC값)한 후 데이터를 전송한다(S117).Then, it is determined whether the ATM cell is transmitted to the base station (S115). If the determination result is that the ATM cell data is transmitted to the base station, a VP / VC value that can reach the destination through a signaling process is set in the ATM cell (the source (source) is decoded). When transmitting data to the station (DESTINATION), the data is transmitted after the VP / VC value that can reach the destation through a signaling process (S117).

이상에서 상술한 본 발명은, 모든 에이티엠 앤드 포인트간에 VC 설정을 할 필요가 없이 기지국시스템내부의 ATM시작단에서부터 ATM종단까지만 가상 접속 채널을 설정하면 되고, 기지국과 제어국간은 SVC방식을 사용하여 소프트웨어적으로 VC가 설정되기 때문에 VC 할당이 용이해지는 효과가 있다.In the present invention described above, the virtual access channel needs to be set only from the ATM start end to the end of the ATM in the base station system without the need for VC setting between all ATM and points, and the base station and the control station use the SVC method. Since VC is set in software, VC allocation is easy.

특히, 기지국 내부에서는 PVC방식을 채용하고 기지국과 제어국간에는 SVC방식을 사용함으로써, PVC를 사용하는 기지국시스템 구간에서는 신호절차 없이 콘넥션 셋업이 이루어지므로 성능이 향상되고, SVC를 사용하는 기지국시스템과 제어국시스템간의 구간에서는 일정수의 어드레스만으로도 VP/VC를 재사용할 수 있는 효과가 있다.In particular, by adopting the PVC method in the base station and using the SVC method between the base station and the control station, the connection setup is made without signal procedure in the base station system section using the PVC, so the performance is improved, and the base station system using the SVC and the In the section between the control station systems, the VP / VC can be reused even with a certain number of addresses.

Claims (1)

기지국 및 제어국을 구비하고 있는 이동통신 시스템의 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법에서 있어서,In the address allocation method for the virtual channel access in the AT network of a mobile communication system having a base station and a control station, 기지국내부 통신인지 판단하고, 그 판단결과 기지국 채널카드에서 ATM 종단까지 가상 접속 채널(VPI/VCI)을 할당하는 단계와;Determining whether it is internal communication of the base station, and as a result of allocating a virtual access channel (VPI / VCI) from the base station channel card to the ATM end; 상기 할당된 VP/VC 값을 고정한후 PVC방식을 채용한 구간에 할당 원칙에 따라 기지국내에서 데이터를 전송하는 단계와;Fixing the assigned VP / VC value and transmitting data in a base station according to an allocation principle in a section employing a PVC method; 상기 단계 수행후, 제어국으로 ATM 셀 전송인지 판단하고, 그 판단결과 제어국으로 셀 데이터 전송이면 셀 내부의 인포메이션(INFORMATION) 영역에 도착해야 할 목적지 주소를 포함하여 데이터를 전송하는 단계와;After performing the above steps, determining whether the ATM station transmits the cell to the control station, and if the cell data is transmitted to the control station, transmitting data including a destination address to arrive at an information area inside the cell; 기지국내부 통신이 아니면 기지국과 제어국간의 통신인지 판단하고 그 판단결과 기지국과 제어국간의 통신이면, SVC방식을 사용하여 ATM 노드간에 시그널링 과정을 통해 VC를 설정하는 단계와;Determining whether the communication is between the base station and the control station if the communication is not internal to the base station, and if the communication result is between the base station and the control station, setting the VC through a signaling process between ATM nodes using the SVC method; 상기 단계 수행후, 기지국으로 ATM 셀 전송인지 판단하고, 그 판단결과 기지국으로 ATM 셀 데이터 전송이면 시그널링 과정을 통해 목적지에 이를 수 있는 VP/VC 값을 ATM 셀에 셋팅한 후 데이터를 전송하는 단계를 포함하여 이루어지는 것을 특징으로 하는 에이티엠 네트워크에서 가상 채널 접속을 위한 주소할당 방법.After performing the above step, it is determined whether the ATM cell transmission to the base station, and if the determination result is ATM cell data transmission to the base station, the step of transmitting the data after setting the VP / VC value that can reach the destination through the signaling process in the ATM cell Address allocation method for the virtual channel access in the AT network, characterized in that comprises a.
KR1020010033671A 2001-06-14 2001-06-14 Method for addressor allotment for virtual channel connection in ATM network KR20020095575A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990005391A (en) * 1997-06-30 1999-01-25 윤종용 Information Extraction Method for Total Path of PVC and SVC in ATM, Frame Relay, and PDH Networks
KR20000004881A (en) * 1998-06-03 2000-01-25 윤종용 Frame relay connection device through atm network using frame relay proxy signaling agent and method
KR20000073518A (en) * 1999-05-11 2000-12-05 서평원 Cellular ATM Packet Network and Method for Transmitting Packet
KR100304940B1 (en) * 1999-09-01 2001-11-01 서평원 Network making Method in Asynchronous Transfer Mode
KR20020056764A (en) * 2000-12-29 2002-07-10 엘지전자 주식회사 Method for cnnecting asynchrouns transfer mode in mobile communication system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990005391A (en) * 1997-06-30 1999-01-25 윤종용 Information Extraction Method for Total Path of PVC and SVC in ATM, Frame Relay, and PDH Networks
KR20000004881A (en) * 1998-06-03 2000-01-25 윤종용 Frame relay connection device through atm network using frame relay proxy signaling agent and method
KR20000073518A (en) * 1999-05-11 2000-12-05 서평원 Cellular ATM Packet Network and Method for Transmitting Packet
KR100304940B1 (en) * 1999-09-01 2001-11-01 서평원 Network making Method in Asynchronous Transfer Mode
KR20020056764A (en) * 2000-12-29 2002-07-10 엘지전자 주식회사 Method for cnnecting asynchrouns transfer mode in mobile communication system

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