KR20110104755A - Method for transferring messages in a dual sigtran system - Google Patents

Method for transferring messages in a dual sigtran system Download PDF

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Publication number
KR20110104755A
KR20110104755A KR1020100023835A KR20100023835A KR20110104755A KR 20110104755 A KR20110104755 A KR 20110104755A KR 1020100023835 A KR1020100023835 A KR 1020100023835A KR 20100023835 A KR20100023835 A KR 20100023835A KR 20110104755 A KR20110104755 A KR 20110104755A
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South Korea
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sigtran
message
stack
application
layer
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KR1020100023835A
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Korean (ko)
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최성춘
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주식회사 인스프리트
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Publication of KR20110104755A publication Critical patent/KR20110104755A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures

Abstract

The present invention relates to a SIGTRAN (SIGnaling TRANsport) system used to deliver packet-based PSTN signals to an IP network, and more particularly, to a message delivery method in a SIGTRAN duplication system using two SIGTRAN systems in an active mode at all times. The message delivery method in the SIGTRAN redundancy system according to the present invention includes a first SIGTRAN system including an SIGTRAN stack including an SCTP, an M3UA, an SCCP, a TCAP, and an application layer, and always operating in an active mode; A message transfer method of a SIGTRAN redundancy system including a second SIGTRAN system including the same components as those of the first SIGTRAN system and always operating in an active mode in association with the first SIGTRAN system. Receiving a plurality of messages from a power station in the SIGTRAN stack of any one of the first and second SIGTRAN systems; The M3UA layer of the SIGTRAN stack receiving the message is classified into two types according to the routing method of the message, and distributed to each SIGTRAN stack of the first and second SIGTRAN systems.

Description

Method of transferring messages in a Dual SIGTRAN system

The present invention relates to a SIGTRAN (SIGnaling TRANsport) system used to deliver packet-based PSTN signals to an IP network, and more particularly, to a message delivery method in a SIGTRAN duplication system using two SIGTRAN systems in an active mode at all times.

In order to construct a packet-based next generation communication network that can provide voice, data and multimedia services by integrating a conventional general telephone network with an IP (Internet Protocol) network and a wireless network, SS7 (Signaling System No. 7) signals of a general telephone network A protocol for delivering to a next-generation network node, which is an IP environment, is required, and the SIGTRAN protocol is a representative example.

SIGTRAN protocol stack uses existing IP as it is at the lowest layer, and is equipped with Stream Control Transmission Protocol (SCTP), a reliable common transport protocol for transmitting signaling messages, and at the top is Q.931 and ISUP (ISDN User Part). SCN Adaptation Layer (Adaptation Layer) for adapting various Switched Circuit Network (SCN) signaling such as TCAP (Transaction Capabilities Application Part), Signaling Connection Control Part (SCCP), and Message Transfer Part 3 (MTP3) . For example, SCA User Adaptation (SUA) for interworking at the SCCP level and MTP UA (Message Transfer Part User Adaptation) such as M3UA (MTP3 User Adaptation) or M2UA are used for interworking at the MTP level, such as MTP3 or MTP2. do. Each UA (User Adaptation) provides the IP network with the same function as the SCN signaling to adapt, allowing IP applications to use the existing SCN signaling as it is.

SIGTRAN provides a hierarchical structure that can be interworked with SCN signaling in various ways according to the needs of the network, and thus components such as a signaling gateway (SG) or a media gateway controller (MGC) of the IP network and a public switched telephone network (PSTN). In order to interwork, the SIGTRAN system having such an interworking function is used in a message transfer part such as an SCTP layer and an SCN adaptation layer.

Meanwhile, in a mobile communication network, the SIGTRAN system is generally provided in the form of a single application system having a signal layer structure including an SCN adaptation layer such as M3UA, SCCP, TCAP, etc. and a mobile application part (MAP) layer on the SCTP layer. to be.

Such a SIGTRAN system is applied to various equipments of a mobile communication network that performs packet-based communication, and is generally used as a single system or an active-standby type system.

In the case of a single system, if a single SIGTRAN system fails, it is directly connected to the failure of the entire mobile communication system.In order to prepare for this, two SIGTRAN systems are used, but the SIGTRAN system in standby mode is used when the SIGTRAN system in active mode fails. The way to switch to active mode has emerged.

However, even in an active-standby SIGTRAN® system, the failure of the entire mobile communication system during the transition from the standby mode to the active mode after the failure occurs is inevitable. The loss can be very serious.

Therefore, there is a need for an active-active SIGTRAN system capable of service without interruption and an efficient message delivery method in the system.

In order to solve the above problems, an object of the present invention is to provide a SIGTRAN redundancy system capable of providing a service without interruption to a mobile communication network even when one system fails by using two SIGTRAN systems operating in an active mode.

In addition, an object of the present invention is to provide a message delivery method that can utilize the resources of the SIGTRAN duplication system as efficiently as possible.

Message delivery method according to an aspect of the present invention for achieving the above object, the first SIGTRAN comprising a SIGTRAN stack comprising a SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode Message delivery method of a SIGTRAN redundancy system comprising a system and a second SIGTRAN system including the same components as the components of the first SIGTRAN system and always operating in an active mode in conjunction with the first SIGTRAN system. A method comprising: receiving a plurality of messages from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And dividing the message into two types according to the routing method of the message in the M3UA layer of the SIGTRAN stack receiving the message and distributing the message to each SIGTRAN stack of the first and second SIGTRAN systems. .

In the above method, when the routing method is a DPC routing method, the message delivery step in the M3UA layer may be performed even if the OPC value of the message is odd and even. In the case where the routing method is the GT routing method, the message delivery step in the M3UA layer is an odd number and an even number based on the last digit of the GT value digit of the message. It is characterized in that the step of delivering the message by dividing by type.

A message delivery method according to another aspect of the present invention for achieving the above object, the first SIGTRAN comprising a SIGTRAN stack comprising a SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode Message delivery method of a SIGTRAN redundancy system comprising a system and a second SIGTRAN system including the same components as the components of the first SIGTRAN system and always operating in an active mode in conjunction with the first SIGTRAN system. At the TCAP layer, including a transaction ID in an application message; Delivering an application message including the transaction ID to an SCCP layer; Applying a Mod function to the transaction ID of the application message at the SCCP layer and selecting a transmission association according to a Mod function value; Sending the application message via a selected transport association; Receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And transmitting the application message from the SCCP layer of the SIGTRAN stack receiving the application message to the TCAP layer of the SIGTRAN stack specified in the transaction ID of the application message.

In the above methods, the message is a message that requires control of the delivery order.

A message delivery method according to another aspect of the present invention for achieving the above object comprises a SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and the application layer and always operates in an active mode Message transmission of a SIGTRAN redundancy system including a SIGTRAN system and a second SIGTRAN system including the same components as those of the first SIGTRAN system and always operating in an active mode in association with the first SIGTRAN system. A method comprising: including a transaction ID in an application message at the TCAP layer; Transmitting an application message including the transaction ID through the SIGTRAN stack of any one of the first and second SIGTRAN systems; Receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And transmitting the application message from the SCCP layer of the SIGTRAN stack receiving the application message to the TCAP layer of the SIGTRAN stack specified in the transaction ID of the application message.

A message delivery method according to another aspect of the present invention for achieving the above object comprises a SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and the application layer and always operates in an active mode Message transmission of a SIGTRAN redundancy system including a SIGTRAN system and a second SIGTRAN system including the same components as those of the first SIGTRAN system and always operating in an active mode in association with the first SIGTRAN system. A method, comprising: including a transaction ID in a plurality of application messages at the TCAP layer; Distributing and transmitting the plurality of application messages including the transaction ID to each SIGTRAN stack of the first and second SIGTRAN systems at a ratio of 50:50; Receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And transmitting the application message from the SCCP layer of the SIGTRAN stack receiving the application message to the TCAP layer of the SIGTRAN stack specified in the transaction ID of the application message.

A message delivery method according to another aspect of the present invention for achieving the above object comprises a SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and the application layer and always operates in an active mode Message transmission of a SIGTRAN redundancy system including a SIGTRAN system and a second SIGTRAN system including the same components as those of the first SIGTRAN system and always operating in an active mode in association with the first SIGTRAN system. The method includes distributing and transmitting a plurality of application messages in the TCAP layer to respective SIGTRAN stacks of the first and second SIGTRAN systems in a ratio of 50:50.

The method may further include receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And distributing and delivering the application message to each SIGTRAN stack of the first and second SIGTRAN systems in a ratio of 50:50 in the SCCP layer of the SIGTRAN stack receiving the application message.

A message delivery method according to another aspect of the present invention for achieving the above object comprises a SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and the application layer and always operates in an active mode Message transmission of a SIGTRAN redundancy system including a SIGTRAN system and a second SIGTRAN system including the same components as those of the first SIGTRAN system and always operating in an active mode in association with the first SIGTRAN system. A method comprising: receiving an application message from a power station in a SIGTRAN stack of either the first and second SIGTRAN systems; And distributing and delivering the application message to each SIGTRAN stack of the first and second SIGTRAN systems in a ratio of 50:50 in the SCCP layer of the SIGTRAN stack receiving the application message.

The message is characterized in that the message is unnecessary control of the delivery order.

According to the present invention, there is provided a SIGTRAN duplexing system capable of providing a seamless service to a mobile communication network even when one system fails using two SIGTRAN systems operating in an active mode.

In addition, according to the present invention, there is provided a message delivery method that can utilize the resources of the SIGTRAN duplication system as efficiently as possible.

In addition, according to the present invention, when the SCCP order control message is received in the active SIGTRAN system 100, 200, all messages requiring the order control can be efficiently delivered so that they can be processed by one SIGTRAN system.

In addition, according to the present invention, when receiving an application response message containing a transaction ID from the power station, the response message can be delivered to the TCAP that sent the request message based on the transaction ID in the SCCP of each system, whichever of the two active systems Even if a message is transmitted and received using the system, the response message can be correctly delivered to the application layer of each system that requested the response message, and an appropriate load balancing effect occurs in the process.

In addition, according to the present invention, as the request and response message of the application performs 50:50 load balancing by TCAP and SCCP of each system, load is distributed evenly throughout the SIGTRAN duplication system, thereby maximizing the advantages of duplication.

In addition, according to the present invention, when an application message requiring order control is required, an ordered delivery in a large station can be ensured by transmitting all application messages requiring order control with the same association of SCTP using the TID of the TCAP.

1 is a block diagram of a SIGTRAN redundancy system according to an embodiment of the present invention.
2 is a conceptual diagram illustrating a method for delivering a sequence control SCCP message in a SIGTRAN redundancy system according to an embodiment of the present invention.
3 is a conceptual diagram of an application message delivery method in a SIGTRAN redundancy system according to an embodiment of the present invention;
4A is a conceptual diagram of a load balancing method when receiving an application request message requesting processing through an application in a SIGTRAN redundancy system according to an embodiment of the present invention.
4B is a conceptual diagram of a load balancing method when transmitting an application response message after receiving and processing an application request message of the present invention in a SIGTRAN duplication system according to an embodiment of the present invention.
5A and 5B are conceptual views illustrating a method of using a transaction ID (TID) when delivering an application message in a SIGTRAN duplication system according to an embodiment of the present invention.
6 is a conceptual diagram illustrating a method of controlling an order of application messages requiring control of a delivery order;

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the present invention through a preferred embodiment of the present invention.

1 is a block diagram of a SIGTRAN redundancy system according to an embodiment of the present invention.

The SIGTRAN redundancy system of FIG. 1 is composed of two systems including a SIGTRAN stack and an application (MAP) including a protocol layer (TCAP, SCCP, M3UA, SCTP), System A (100) and System B (200). It always operates in active-active mode.

Each protocol layer (110-140, 210-240) of the SIGTRAN system can operate as a function call by operating as one process, and the two systems exchange data through a mutual TCP / IP protocol.

The system A 100 and the system B 200 are managed by the SIGTRAN management server 300 which performs environment setting and state management of the SIGTRAN system.

Hereinafter, various message delivery methods available in the SIGTRAN system will be described. The following message delivery method may apply only one method at a time or two or more methods at the same time according to an operation mechanism, and a person skilled in the art will be able to design an efficient SIGTRAN duplication system by variously combining the following message delivery methods. .

How to Forward Sequence Control SCCP Messages

2 is a diagram illustrating a method for delivering an ordered control SCCP message in a SIGTRAN duplication system according to an embodiment of the present invention, and efficiently identifying a plurality of messages to be delivered sequentially by classifying a delivery destination of a message according to a routing method of the message. Disclosed is a message delivery method.

A number of messages that must be delivered sequentially include the XUDT message. For example, when a user of a mobile communication terminal performs location registration (that is, turns on a mobile communication terminal or moves a location), the HLR sends down the subscriber information of the user to the VLR. However, according to the SCCP protocol specification, the application data can be stored in a single SCCP message up to 254 bytes, so if the application data is 254 bytes or less, it can be delivered as a UDT (unidata) message at once, but the application data exceeds 254 bytes. Must be conveyed in multiple extended unidata (XUDT) messages of the SCCP. For example, for 1200 bytes of data, 254 + 254 + 254 + 254 + 184 will be delivered in five messages. In this case, five messages must be reassembled in one SIGTRAN system regardless of whether they are received by the SIGTRAN system A 100 or B 200.

In the present invention, as described above, in the case of a message that requires control of the order of delivery to the application layer, the message is divided into the SIGTRAN system A (100) and the SIGTRAN system B (200) according to the routing method of the message transmitted from the large power.

In FIG. 2, when a XUDT message, which is a SCCP message divided from a power station (SEP), is divided into system A 100 and B 200 and received, eventually in one system A or B in order to recombine the messages to be divided Both messages must be processed. Therefore, in order to control this, in the present invention, based on the message delivery method,

That is, in case of DPC (Destination Point Code) routing method, system A and system B are divided into cases where ODC (Odding Point Code) value is odd (Odd) and even (Even). Each one passes.

Also, in the case of GT (Global Title) routing method, odd (Odd) and even (Even) are divided based on the last digit of the GTAI (Global Title Address Information) value (for example, 821029190000), respectively, as System A and System B. To pass.

For example, when the last digit of the OPC value or the GTAI value is odd, if the system A 100 is the destination and if the even number is the even system B, the system B 200 is the destination, the M3UA 130 and the system B If the last digit of the OPC value or GT value of the received message is an odd number, the M3UA 230 of 200 receives the message to the SCCP 120 of the system A 100, and if it is even, the M3UA 230 transmits the message. Transfer to SCCP 220 of B (200).

Accordingly, whether a message is received at the SCTP 140 of the system A (100) or the SCTP 240 of the system B (200), by the message delivery method in the M3UA (130, 230) of each system, The message to be finally delivered to A 100 is delivered to SCCP 120 of System A 100 and the message to be finally delivered to System B 200 is delivered to SCCP 220 of System B 200. Therefore, a message that must be delivered sequentially to System A (100) or System B (200), that is, a plurality of messages requiring control of the delivery order, can be delivered without reversal of the delivery order or mistake of the delivery destination.

As described above, according to the method for delivering a sequence control SCCP message in the SIGTRAN duplication system according to the embodiment of the present invention, it is possible to efficiently deliver a message requiring sequence control while using two active SIGTRAN systems 100 and 200.

Application message delivery method

3 relates to an application message delivery method in a SIGTRAN duplication system according to an embodiment of the present invention, and discloses a message delivery method for distinguishing a transmission / reception system by including a transaction ID in an application message.

According to the method of FIG. 3, for all messages delivered by the application layer 150, the TCAP layers 110 and 210 include the transaction ID in the message and deliver the message as an application request message. Since the application response message from the player for the application request message includes the same transaction ID, the TCAP designated as the transaction ID in the SCCP of the system that received the application response message (eg, SCCP 220 of System B) (eg, the system). Forwards the application response message to A's TCAP 110). Through this process, a response message to the request message delivered by the application layer 150 of the system A 100 is received by the application layer 150 of the same system A 100.

Meanwhile, in order to perform such an operation, a range of transaction IDs may be configured for System A 100 and System B 200 when the SIGTRAN duplication system is configured. For example, System A 100 may be configured to have a range of 1 to 1000. Allocating a transaction ID, the system B (200) can configure each system by assigning a transaction ID to 1001 ~ 2000.

As described above, according to the application message delivery method in the SIGTRAN duplication system according to the embodiment of the present invention, even if any of the two active SIGTRAN system (100, 200) to transmit and receive the application message of the request message and the response message Efficient delivery and handling are guaranteed.

Hereinafter, a load balancing method for an application message requiring no order control will be described with reference to FIGS. 4 and 5, and an application message delivery method requiring an order control will be described with reference to FIG. 6.

Application message load balancing method (1)

4A illustrates a load balancing method when receiving an application request message for requesting processing through an application in a SIGTRAN redundancy system according to an embodiment of the present invention, and FIG. 4B illustrates a SIGTRAN according to an embodiment of the present invention. The load balancing method of transmitting an application response message after receiving and processing an application request message in a redundant system is illustrated.

In FIG. 4A, a plurality of messages ①, ②, ③, and ④ received from a power station in any one system (eg, system A 100) are in a 50:50 ratio in the SCCP 120 of that system A 100. By equally distributing, the messages ① and ③ are sequentially transmitted to the TCAP 110 of the System A 100 and the TCAP 210 of the System B 200, so that the messages 1 and 3 correspond to the TCAP 110 and the application MAP of the System A 100. As delivered to 150 and the messages ② and ④ are processed in the TCAP 210 and the application (MAP) 250 of the system B 200, load balancing of the application request message is performed.

Meanwhile, in FIG. 4B, in the case of the response message transmitted from the applications 150 and 250 of each system 100 and 200 to the power station, the system A is equally distributed in the 50:50 ratio in the TCAPs 110 and 210 of each system. Message (1), (4) are transmitted in turn to SCCP (120) and SCCP (220) of system B (200) in order to transmit to system power (100) and messages (2) and (3) in system B (200). Load balancing of application response messages is performed in such a way that they are sent to the power station.

As such, the SCCP (120, 220) and TCAP (110, 210) of each system performs a 50:50 load balancing for the request message and the response message, respectively, so that the load is evenly distributed throughout the SIGTRAN redundancy system. Has the effect of maximizing.

Application message load balancing method (2)

5A and 5B illustrate a method of using a transaction ID (TID) when delivering an application message in the SIGTRAN duplication system of the present invention.

The characteristic of the application message load balancing method of FIG. 5 is that when a response message needs to be received for a message transmitted from each system 100 or 200 to a power station, as in the case of FIG. The transaction ID is included in each message, and the message received from the power is also distributed according to the transaction ID.

For example, in the TCAP 120 of the system A (100) 1 to 1000 times, in the case of the TCAP 220 of the system B (200) 1001 to 2000 transaction IDs are assigned to each request message, the ratio of 50:50 By dividing and forwarding to the SCCP (130, 230) of both systems, the load of the application request message is equally distributed and transmitted to both systems.

On the other hand, when receiving an application response message containing a transaction ID from the power, the SCCP (130, 230) of each system forwards the response message to the TCAP (120, 220) of the system based on the transaction ID, accordingly The response message can be accurately delivered to each of the systems 100 and 200 requesting the response message, and an appropriate load balancing effect occurs in the process.

How to Send Application Message Order Control

Meanwhile, FIG. 6 illustrates a method of controlling an order of application messages requiring control of a delivery order.

For application messages that require control of the delivery order, the message delivery order must be performed within one system because the message delivery order must not be changed.

In other words, when multiple applications with the same transaction ID are transmitted from an application (MAP), if the sequence control is not performed, two messages requiring sequence control are delivered to different signaling gateways (SGs) connected through different associations. In this case, the transfer order may be changed according to the throughput and routing method of the SG, and may be delivered to the end station (SEP). Doing so would render the message normal.

Therefore, in the case of the present invention, as described above, a message delivery method for a case in which a plurality of application messages should be delivered in sequence should be provided, and FIG. 6 relates to this.

In FIG. 6, the message transmitted by the application (MAP) 150 of the system A 100 is given a transaction ID in the TCAP 110, but is directly transmitted to the SCCP 120 in the same system 100. The SCCP 120 obtains a Signaling Link Selection Code (SLS) value by dividing it by 16 by applying a Mod function to the transaction ID of the received message, and selects an association to be transmitted according to the SLS value in the M3UA (130). In 140, the message is transmitted to the selected association. For example, when the SLS value is 0 to 7, it is transmitted to the signaling gateway 1 400 through association 1 (Assoc # 1). When the SLS value is 8 to 15, it is transmitted through association 2 (Assoc # 2). Transmit to signaling gateway2 (500).

In this case, the transmission message may be sequentially controlled and transmitted to the power station through the signaling gateways 1 and 2 400 and 500.

According to the message delivery method in the SIGTRAN duplication system according to an embodiment of the present invention described above, the message load can be efficiently distributed through a variety of methods for the case that the sequence control is unnecessary, and the sequence control is required. Even in the case of a message, the request message and the response message are guaranteed to be transmitted and received at the same application layer 150 and 250, but the message load balancing effect is simultaneously brought.

Although the features of the present invention have been described above with reference to various embodiments of the present invention, the scope of the present invention is not limited to the above embodiments, and those skilled in the art of the present invention have the appended claims. Various modifications, changes, and adaptations may be made without departing from the scope of the invention as defined by it, and such modifications should also be construed as being included in the scope of the present invention.

100: system A 200: system B
105: SIGTRAN stack A 205: SIGTRAN stack B
110, 210: TCAP layer 120, 220: SCCP layer
130, 230: M3UA layer 140, 240: SCTP layer
150, 250: application layer

Claims (10)

A first SIGTRAN system configured to include an SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode, including components identical to those of the first SIGTRAN system A message delivery method of a SIGTRAN redundancy system configured to include a second SIGTRAN system configured to operate in an active mode at all times in association with the first SIGTRAN system,
Receiving a plurality of messages from a power station in the SIGTRAN stack of any one of the first and second SIGTRAN systems; And
SIGTRAN characterized in that the M3UA layer of the SIGTRAN stack receiving the message divided into two types according to the routing method of the message distributed to each SIGTRAN stack of the first and second SIGTRAN system and forwarded to each SIGTRAN stack How messages are delivered in a redundant system. The method of claim 1,
When the routing method is a DPC routing method, the message transfer step in the M3UA layer may be classified into two types, in which the OPC value of the message is odd and even. To deliver,
When the routing method is a GT routing method, the message delivery step in the M3UA layer is a step of delivering a message by dividing the message into two types, an odd number and an even number based on the last digit of the GT value digit of the message. Message delivery method of the SIGTRAN redundancy system, characterized in that. A first SIGTRAN system configured to include an SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode, including components identical to those of the first SIGTRAN system A message delivery method of a SIGTRAN redundancy system configured to include a second SIGTRAN system configured to operate in an active mode at all times in association with the first SIGTRAN system,
Including a transaction ID in an application message at the TCAP layer;
Delivering an application message including the transaction ID to an SCCP layer;
Applying a Mod function to the transaction ID of the application message at the SCCP layer and selecting a transmission association according to a Mod function value;
Sending the application message via a selected transport association;
Receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And
And forwarding the application message from the SCCP layer of the SIGTRAN stack that has received the application message to the TCAP layer of the SIGTRAN stack specified in the transaction ID of the application message. The method according to any one of claims 1 to 3,
The message is a message delivery method of the SIGTRAN redundancy system, characterized in that the message that requires control of the delivery order. A first SIGTRAN system configured to include an SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode, including components identical to those of the first SIGTRAN system A message delivery method of a SIGTRAN redundancy system configured to include a second SIGTRAN system configured to operate in an active mode at all times in association with the first SIGTRAN system,
Including a transaction ID in an application message at the TCAP layer;
Transmitting an application message including the transaction ID through the SIGTRAN stack of any one of the first and second SIGTRAN systems;
Receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And
And forwarding the application message from the SCCP layer of the SIGTRAN stack that has received the application message to the TCAP layer of the SIGTRAN stack specified in the transaction ID of the application message. A first SIGTRAN system configured to include an SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode, including components identical to those of the first SIGTRAN system A message delivery method of a SIGTRAN redundancy system configured to include a second SIGTRAN system configured to operate in an active mode at all times in association with the first SIGTRAN system,
Including a transaction ID in a plurality of application messages at the TCAP layer;
Distributing and transmitting the plurality of application messages including the transaction ID to each SIGTRAN stack of the first and second SIGTRAN systems at a ratio of 50:50;
Receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And
And forwarding the application message from the SCCP layer of the SIGTRAN stack that has received the application message to the TCAP layer of the SIGTRAN stack specified in the transaction ID of the application message. A first SIGTRAN system configured to include an SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode, including components identical to those of the first SIGTRAN system A message delivery method of a SIGTRAN redundancy system configured to include a second SIGTRAN system configured to operate in an active mode at all times in association with the first SIGTRAN system,
Distributing and transmitting a plurality of application messages in the TCAP layer to respective SIGTRAN stacks of the first and second SIGTRAN systems at a ratio of 50:50. The method of claim 7, wherein
Receiving an application message including the transaction ID from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems;
And distributing and distributing the application message to each SIGTRAN stack of the first and second SIGTRAN systems in a ratio of 50:50 in the SCCP layer of the SIGTRAN stack receiving the application message. How the system delivers messages. A first SIGTRAN system configured to include an SIGTRAN stack including SCTP, M3UA, SCCP, TCAP, and an application layer and always operating in an active mode, including components identical to those of the first SIGTRAN system A message delivery method of a SIGTRAN redundancy system configured to include a second SIGTRAN system configured to operate in an active mode at all times in association with the first SIGTRAN system,
Receiving an application message from a power station in a SIGTRAN stack of any one of the first and second SIGTRAN systems; And
Distributing the application message to each SIGTRAN stack of the first and second SIGTRAN systems in a ratio of 50:50 in the SCCP layer of the SIGTRAN stack receiving the application message. How messages are delivered. The method according to any one of claims 5 to 9,
The message is a message delivery method of the SIGTRAN redundancy system, characterized in that the message is unnecessary control of the delivery order.
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