KR100266258B1 - Ss no. 7 signal transfer system of full electronic telephone exchange - Google Patents

Abstract

PURPOSE: An SS NO. 7 signal transmission system of a full electronic exchange is provided to convert a transmission method of a communication message into a high speed method. CONSTITUTION: LIB(Link Interface Block)(110) performs second/third layer functions of a pre-setup SS NO.7 MTP(Message Transfer Part). An AIB(Application Interworking Block)(120) interfaces with a pre-setup SS NO.7 STP(Signaling Transfer Point) through a TCP/IP(Transmission Control Protocol/Internet Protocol), and transceives network management related information. An ASB(Application Service Block)(130) performs a pre-setup SCCP(Signaling Connection Control Part) related service, and accesses to SS NO.7 message SCCP related circuit information and a network database. An RBUS(Round robing BUS)(140) uses an LAN(Local Area Network) bus of 100Mbps, and performs an interface between the LIB(110), the AIB(120) and the ASB(130). MBs(Maintenance Blocks)(150,152) perform a state management function of each block device and a block error processing function, and transmit corresponding information to the LIB(110) and the ASB(120) by database(170,172). The database(170,172) are data storing media. Lower service units(160,162,164,166) interface in order to access to the data base(170,172) at a high speed.

Description

Ss No.7 signal transmission system

The present invention relates to an SS NO.7 signal transmission system of an all-electronic exchange, and more particularly, to an SS of an all-electronic exchange using a communication method of a LAN (Local Area Network) structure. NO.7 relates to a signal transmission system.

As is well known in the art, SS NO.7 hardware devices have accepted message transmission and reception in the form of interprocessor communication. In other words, the performance of the transfer of interprocessor communication messages has deteriorated the performance of the exchange.

However, due to the development of various services, the proportion of SS NO.7 protocol has become relatively large, the message size using SS NO.7 has increased, and it is also required to process protocols in real time.

However, in the prior art, the load is concentrated for SS NO.7 signal processing, affecting service and real-time processing of other functions, and as the size of SS NO.7 increases, transmission of internal communication messages There was a drawback to this slowing down and the increasing system load due to SS NO.7 treatment in the exchange system.

The present invention has been made to solve the above-mentioned drawbacks of the prior art,

SS NO.7 hardware devices can be easily accommodated and serviced by SS NO.7 signaling relay switching by improving the function of Signaling Message Handling (hereinafter abbreviated as SMH) by using communication method of LAN structure. It is an object of the present invention to provide a SS NO.7 signal transmission system of an electronic switchboard, which maintains the high speed of transmission and improves the system load due to SS NO.7 processing in the system.

In order to achieve the above object, the present invention provides a link matching unit for performing functions of layers 2 and 3 of a message transfer part (hereinafter abbreviated as MTP) of SS NO. Interface Block, abbreviated as LIB), SS NO.7 Signal Transmitting Unit (abbreviated as STP) and TCP / IP (Transmission Control Protocol / Internet Protocol) Application Interworking Block (abbreviated as AIB) for transmitting and receiving information and related services, and a related signaling connection control part (hereinafter abbreviated as SCCP) among SS NO.7 protocols. SS NO.7 message SCCP related line information and application service unit (abbreviated as ASB) to access the network database, and LIB, AIB, ASB using 100 Mbps LAN bus. Still life between Roundrobing bus (abbreviated as RBUS) that performs the sum, and state management and fault handling of blocks in the devices of each block, and the corresponding information in each LIB and ASB by the database It provides a SS NO.7 signal transmission system of an electronic switchgear including a maintenance block for transmitting a signal, a database serving as a data storage medium, and a lower service unit for fast access to a database serving as a storage medium. .

1 is a block diagram of an SS NO.7 signal transmission system of an electronic switching system according to the present invention;

FIG. 2 is a block diagram of an electronic switching system suitable for processing a message matched at the link matching unit according to FIG. 1; FIG.

<Description of the code | symbol about the principal part of drawing>

110, ... 112: first, ..., n-th link matching portion

120: application interaction unit 130: application service unit

140: round roving bus 150, 152: first and second holding parts

160, 162, 164, 166: first, second, third, fourth sub-service department

170, 172: first and second database

202: non-line connection processing unit 204: signal connection control management unit

206, 210, ..., 220: first, second, ..., n-th signal connection control unit

212, ..., 222: second, ..., n-th message transmitter

214, ..., 224: first, ..., second distribution

216, ..., 226: first, ..., second transmission control section

218, ..., 228: first, ..., second receiving control unit

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings.

The configuration of the present invention is a link interface block (Link Interface Block, hereinafter abbreviated as LIB) that performs the functions of two and three layers of the message transfer part (hereinafter referred to as MTP) of SS NO. , ..., 112), NO.7 Signaling Transfer Point (abbreviated as STP) and TCP / IP (Transmission Control Protocol / Internet Protocol) to match, transmit and receive network management related information An application interworking block (abbreviated as AIB) 120 that performs a service and a service related to a signaling connection control part (hereinafter abbreviated as SCCP) in the NO.7 protocol are performed. .7 messages LIB (110, ...) using the SCCP-related line information and the Application Service block (abbreviated as ASB) 130 for accessing the network database and a 100 Mbps LAN bus. , Roundrobing BUS to perform the matching between the AIB (120), ASB (130) (Hereinafter abbreviated as RBUS) 140, and each device in each block performs the function of state management and failure handling of the block, and each LIB (110, ...) and ASB 130 by DB (Database). Sub-services that match high-speed access to maintenance blocks 150 and 152 for transmitting the corresponding information, databases 170 and 172 as data storage media, and databases 170 and 172 as storage media. It comprises a part (160, 162, 164, 166).

The configuration of the present invention is LIB (110, ...) to perform the functions of the second and third layers of the message transfer part (hereinafter referred to as MTP) of SS NO.7, STP and TCP / IP ( Services related to AIB 120 matching, transmitting / receiving and controlling network management related information through Transmission Control Protocol / Internet Protocol, and Signaling Connection Control Part (hereinafter abbreviated as SCCP) among NO.7 protocols ASB 130, which accesses the NO.7 message SCCP-related line information and network database, and LIB (110, ...), AIB 120, ASB ( 130 performs matching between the RBUS 140 and the device of each block, and the state management and the failure handling of the block, and each LIB (110, ...) and ASB (130) by the DB (Database) A maintenance block (150, 152) for transmitting the corresponding information to the data storage, a database (170, 172) as a data storage medium, and storage It is configured to include a chain database 170 and 172 sub-service unit (160, 162, 164, 166) for matching to access at a high speed on.

Referring to Figure 1 in detail with respect to the block diagram of the SS NO.7 signal transmission system of the electronic switch according to the present invention, LIB (110, ...) serves as a layer for link matching, It is connected to the RBUS 140 and receives a program, such as an application service received from the application service 130 and transmits to the corresponding LIB (110, ...) to connect with the link. Then, it performs the functions of layers 2 and 3 performed by MTP of SS NO.7.

The AIB 120 may transmit and receive network management related information through STP and TCP / IP.

The ASB 130 performs SCCP related services among SS NO.7 protocols and performs SS NO.7 message SCCP related line information and network database access.

RBUS 140 provides a 100 Mbps physical LAN bus and performs matching between each block, such as LIB (110, ...), AIB 120, ASB 130, and so on.

In addition, the RBUS 140 is configured in a redundant manner to switch over when the RBUS 140 fails to maintain the reliability of the message.

In addition, due to the structure of the ring, the plug and play function is performed at the time of expansion, so that the newly expanded link is automatically recognized by the operating system through the RBUS 140 and the link matching unit 110, ..., 112. Do it.

The maintenance units 150 and 152 perform functions of state management and fault handling of the block in each block device. In addition, through the path of the peripheral service unit (160, 162, 164, 166) receives the information from the DB (170, 172), relaying routing to each LIB (110, ...) and ASB 130 (routing) Send relevant information such as tables and control related information.

The database 170, 172 has a relay path setting table and other control information and application service information as a data storage medium, and the subordinate service units 160162, 164, 166, the holding unit 150, 152, and the RBUS 140. ) Is transmitted to the corresponding LIB (110, ...), AIB (120), ASB (130).

The lower service units 160, 162, 164, and 166 serve to match the databases 170 and 172, which are storage media, at high speed.

Referring to FIG. 2, a block diagram of an electronic switchboard suitable for processing a message matched by the link matching unit 110 will be described in detail with reference to FIG. 1. The distribution unit 214 serves to distribute the message, and determines whether to route the SCCP level message or the MTP level message among the SS NO.7 messages.

Basically, the recommendation to the ITU-T is to control the signal connection at the MTP level and to distribute it to each application, but the distribution (214, ..., 224) is provided for the load and real time processing of message processing at the MTP level. do.

Due to the structure of the high speed SS NO.7 system, the second transmission control unit 216 matches the SS NO.7 signal message to the first LIB 110 as E1 (2.048 Kbps) to receive the SS NO.7 signal message. do.

Then, after receiving the corresponding message from the second reception control unit 218, in the case of the signal connection control message, the second distribution unit 214 distributes the message to the first message transmission router 212 and transmits the first message through the RBUS 140. Send a message to the signaling connection control router 206.

In addition, the second signal connection control router 210 is a block for performing non-line connection, and under the control of the second transmission control unit 218 for routing of the signal connection control function, the routing information is loaded on the corresponding signal link to control the signal connection. If the message, it transmits to the first signal connection control router 206 via the RBUS (140).

The first signal connection control router 206 is a block for performing non-line connection and is controlled by the non-line connection processing unit 202 and the signal connection control management unit 204 belonging to the ASB 130 for routing of the signal connection control. Routing through the round robin bus 140 to the corresponding signal link.

In the case of the MTP level message, the RBUS 140 transmits the LIB (110, ...) by the routing information of the MTP message with reference to the destination point code (DPC) and the original point code (OPC) of the message format. The second transmission control unit 216 of the first LIB 110 transmits the data to the counterpart station via the RBUS 140.

When the message is received from the other LIB (..., 112) to the first LIB 110 through the RBUS 140, the second reception controller 218 receives the message and sends it to the second distribution unit 214. Send.

In this system, RBUS 140 satisfies the delay time of the average message recommended in ITU-T's SS NO.7 Recommendation within 20ms and is used for high-speed processing in communication between each device block.

The principles of the invention have been described above in connection with specific devices, which are described by way of example only, and are not limited to the spirit of the invention as described in the appended claims.

As described above, the present invention has the effect of improving the system load and the processing speed due to SS NO.7 processing in the system by high-speed switching the transmission method of the internal communication message.

Claims (3)

Each link matching unit (hereinafter abbreviated as LIB) that performs functions of layers 2 and 3 of the message transfer part (hereinafter abbreviated as MTP) of SS NO.7 preset in the exchange ( 110, ..., 112), Application interaction to match, transmit and receive network management-related information through the preset SS NO.7 Signaling Transfer Point (abbreviated as STP) and TCP / IP (Transmission Control Protocol / Internet Protocol) (Application Interworking block, hereinafter abbreviated as AIB) 120, An application service unit that performs a service related to a preset Signaling Connection Control Part (hereinafter abbreviated as SCCP) among SS NO.7 protocols and performs access to SS NO.7 message SCCP-related line information and network database ( Application Service block, hereinafter abbreviated as ASB) 130, A roundrobing bus (hereinafter abbreviated as RBUS) 140 for performing matching between the LIB (110, ...), the AIB 120, and the ASB 130 using a 100 Mbps LAN bus; , The maintenance unit performs a function of managing a state and a failure of a block in a device of each block, and transmitting corresponding information to each of the LIBs (110, ...) and the ASB (120) by a database. Block 150, 152, Databases 170 and 172, which are data storage media, And a sub service unit (160, 162, 164, 166) for fast access to the database (170, 172) as a storage medium. The method of claim 1, Each of the LIBs 110, ..., 112 is: Distribution units, each distribution unit 214, ..., 224 for determining whether to route to the SCCP level message or the MTP level message among SS NO.7 messages; Respective transmission controllers 216, ..., 226 for transmitting the message to the application service unit 130 in the case of the signal connection control message in each of the distribution units 214, ..., 224; When the message is received from the other LIB (110 ..., 112) to the corresponding LIB (110, ... 112) via the RBUS 140, the corresponding reception that receives the message and transmits to the corresponding distribution unit 214 Control unit 218, ..., 228; Each message transmission router 212, ..., 222 that controls to transmit a message to the RBUS 140 when the signal received by the corresponding reception control unit 218, ..., 228 is a signal connection control message. ; In the case of a signal connection control message, the signal connection control router 210, ..., 220 for transmitting to the first signal connection control router 206 via the RBUS 140, SS NO.7 signal transmission system of electronic exchange. The method of claim 1, The application service unit 130: A signal connection control router (206) for receiving a signal connection control message from the corresponding LIBs (110, ..., 112) and routing to the corresponding signal link; And a non-line connection processing unit (202) for routing control of a signal connection control function to the signal connection control router (206).

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