KR100353085B1 - method for signal routing route management in No.7 signaling network - Google Patents

Abstract

The present invention relates to a signal routing path management method in No. 7 signal network that enables more stable signal network operation.

In the conventional No. 7 signal network, since signal point routing paths are inputted to individual signal routes and managed separately, inconveniences and errors are increased, and signal routes are changed according to the change (available / unavailable) of the signal link set. There is a problem in that the load increases when the state is changed and the routing path data is updated.

According to the present invention, when the signal routing paths to the signal points of other regions are the same, the signal routing paths to the corresponding signal points are processed into the signal route set group, thereby reducing operational error and reducing the signal routing data update load. To enable stable signal network operation.

Description

Method for signal routing route management in No.7 signaling network

The present invention relates to a method for managing a signal routing path in a No.7 signal network, and more particularly, to a method for managing a signal routing path in a No.7 signal network for performing a more stable signal network operation.

In general, the No.7 signaling system is a common signaling system standardized by the International Telecommunication Union-Telecommunication standardization sector (ITU-T), and provides call access and various communication services between subscribers or provides a communication network. Unlike the existing channel method, in which the channel and the signal channel are used together to transmit various control signals for operation management, the channel and the signal channel are completely separated from each other so that a plurality of voice signals are separated from each other. Send and receive signal information.

The general configuration of the No. 7 signal network is shown in Fig. 1, but the general No. 7 signal network is composed of a signaling point (SP) and a signaling link (SL).

In this configuration, the signaling point is to send, receive, or transmit a signaling message generated by a user, and the signaling point includes a signaling end point (SEP) for transmitting or receiving a signaling message and a pair. There is a Signaling Transfer Point (STP) for transferring messages from one signal link to another. The SEP includes an originating point (OP) that generates a signaling message and a destination point (DP), which is a destination of the signaling message.

On the other hand, the signal link is a logical information transmission path connecting the corresponding signal points, and the set of such signal links is called a signaling link set (LS), and a path for delivering a message to the signal point is a signal route ( Called Signaling Route (SR), a set of signal routes, which are routing routes for one destination, is called a signal route set.

As described above, the No. 7 signal network is composed of a signal point, a signal link, a signal link set, and specification data for a signal route, and a signal link set for directing a signal message generated by an origin point to a destination point. Call routing and service requests are performed by performing routing functions delivered over a specific signal link.

Assuming that all signal link sets in the No. 7 signal network are available, each signal point of the signal network has an internal protocol structure as shown in FIG. 2, and the data user part (DUP) and the like. ISDN User Part considering the correspondence between various kinds of services of the Telephone User Part (TUP) and ISDN (Integrated Services Digital Network), which are in charge of handling telephone signal processing and call exchange access control. A message transfer part (MTP) user unit such as an ISUP and a Signaling Connection Control Part (SCCP) that enables the transmission of various signals and data other than a normal line-compatible control signal, is connected to the MTP (). have. In FIG. 2, TC (Transaction Capabilities) performs a question and answer processing function to the SCCP user unit. Here, the signal point performing only the signal transfer function may not have a protocol such as SCCP and ISUP.

As mentioned above, MTP is a function unit that distributes signal transmission control, error correction, and security measures of a signal network to increase versatility, and reliably delivers No.7 signal-related messages transmitted and received between signal points. As shown in FIG. 3, a signal message processing unit 10 performing signal traffic transmission and user unit distribution functions, and all specifications (signal points, signal links, signal links) belonging to a signal network for reliable signal message transmission. And a signal network manager 20 which efficiently maintains the relationship between the specifications and manages the signal network shape while efficiently using the set and the signal route).

In this configuration, the signal message processing unit 10 includes a message determination unit 13, a message distribution unit 15, and a message routing unit 17. The message determination unit 13 receives The message is analyzed by checking whether the final destination of the message is its own country, the message distribution unit 15 delivers the message to the user part of the local country, and the message routing unit 17 transmits the neighbor signal to transmit the message to the final destination. Route to the signal route associated with the point.

On the other hand, the signal network manager 20 includes a signal traffic manager 23, a signal link manager 25, and a signal route manager 27, but the signal traffic manager 23 is in an unavailable state. Signal traffic to another link or route or temporarily slows down, the signal link manager 25 manages the restoration, activation or incapacitation of the link, and the signal route manager 27 provides information about the signal route status. Reliable exchange between signal points in the signal network.

The No. 7 signaling network receives and stores routing path information for each signal point from the operator matching system, and then delivers the message to the corresponding signal point using routing path information. When the routing information about the signal points of the area is received, the routing information about the signal points is received for each signal route and managed by the signal point.

For this reason, the routing path of multiple signal points changes as the state (available / unavailable) of the signal link set changes, updating the routing path by signal point when updating the routing path data for the signal point whose routing path has changed. You have to.

As described above, in the conventional No. 7 signal network, since signal point routing paths are input and managed individually for individual signal routes, operational inconvenience and errors are increased, and the state of the signal link set (available / not available). As the signal route state changes according to the change, there is a problem in that the load becomes large when the routing path data is updated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and when the signal routing paths for signal points in other regions are the same, the signal routing paths for the corresponding signal points are treated as signal route set groups, thereby reducing operational errors. The purpose of the present invention is to provide a signal routing path management method in No.7 signal network which can perform stable signal network operation by reducing the signal routing data update load.

1 is a diagram showing a general configuration of a No. 7 signal network.

2 shows the internal protocol structure of each signal point.

Figure 3 shows the configuration of the MTP.

4 is a diagram showing a general configuration of a No. 7 signal network.

5 to 8 are diagrams for explaining a signal routing path management method of No. 7 signal network according to the present invention;

*** Explanation of symbols for the main parts of the drawing ***

10. Signal message processing section, 20. Signal network management section

Signal routing path management method in the No.7 signal network of the present invention for achieving the above object comprises the steps of configuring a signal route set group for configuring the signal route sets of the same signal route path; A routing data management process of managing routing data of the signal route set group according to whether a signal link set is available; And a routing data update process of updating the routing data of the signal route set group and the routing data of the signal point according to whether the message is transmitted to a predetermined signal point.

The signal route set group configuration process may include: configuring a signal route set group identifier, a signal link set to route signal traffic, and each signal route information to form a signal route set group; And routing the routing information of the signal point having the same route path as the signal route set group as the routing information of the signal route set group.

And the routing data management process includes changing routing data of a signal route set group to transmit signal traffic transmitted on the unusable signal link set to the available signal link set when a predetermined signal link set is unavailable. ; Altering routing data of a signal route set group to transmit signal traffic to the available signal link set if the unused signal link set is available.

The routing data updating process may further include: converting routing information of the signal point into a form of individually managing the received routing prohibition message to a predetermined signal point; And when receiving the transfer permission message to a predetermined signal point, converting routing information of the signal point into a form of operating the routing information of the signal route set group.

Hereinafter, a method of managing a signal routing path in a signal network No. 7 according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the configuration of the No. 7 signal network to which the signal routing path management method according to the present invention is applied is similar to that of the prior art. As shown in FIG. 4, a routing path from the signal point SEP1 to the signal points SEP4, SEP5, and SEP6 is shown. In STP1, when three routing paths of the signal link set LS100, LS110, and LS500 exist, each routing path LS100, LS110, and LS500 for the destination SEP4 is called a signal route, and is a routing path for one destination SEP4. The set of three signal routes is called the signal route set.

As such, the signal route sets of the signal points SEP4, SEP5, and SEP6 are LS100, LS110, LS500, LS100, LS110, LS500, LS100, LS110, LS500, respectively, and the set of signal links to be routed are the same.

As described above, the signal route sets of the signal points SEP4, SEP5, and SEP6 using the same signal link sets LS100, LS110, and LS500 as routing paths are called signal route set groups.

5 is a road illustrating a signal routing path management method in the No.7 signal network according to the present invention, and a signal routing path management method in the No.7 signal network according to the present invention includes a set of signal route sets having the same signal route path. A signal route set group configuration process constituting a signal route set group (S100), a routing data management process for managing routing data of a signal route set group according to whether a signal link set is available (S200), and a predetermined signal point A routing data update process (S300) is performed to update the routing data of the signal route set group and the routing data of the signal point according to whether the message is allowed.

6 is a view for explaining a signal routing set group configuration process in the signal routing path management method in No. 7 signal network according to the present invention.

First, a signal route set group identifier, a signal link set to route signal traffic, and signal route information (priority, etc.) are input from an operator matching system, and a signal route set having the same signal routing path is configured as a signal route set group. (S110). For example, assuming that signal points SEP4, SEP5, and SEP6 that use the same signal link set LS100, LS110, and LS500 as routing paths exist, the system operator may select SRG1 as a signal route set group identifier and a signal to route signal traffic. Enter LS100, LS110, LS500 as link set, LS100 as priority route as priority route, LS110 as priority route as priority route, and LS500 as priority route as signal route information in each signal link set. Configure the signal route set group.

In the process S110, the operator matching system is collectively referred to as an operator matching subsystem of a terminal device such as a personal computer (PC), a W / S (WorkStation), a fast terminal, and a signal relay system. The signal route set group identifier is for identifying a signal route set group and is composed of numbers or letters.

Thereafter, a routing path of a predetermined signal point and a routing path of a signal route set group are compared with each other. When the two routing paths are the same, routing information about the corresponding signal point is received as an identifier of the signal route set group, and the corresponding signal point is received. Routing information about is used as routing information of a signal route set group, and when two routing paths are not the same, routing information about a corresponding signal point is received for each route.

That is, it is determined whether the routing path of the predetermined signal point and the routing path of the signal route set group are the same and whether the identifier of the signal route set group is input as the routing information of the corresponding signal point (S120). As a result of the determination of step S120, when the two routing paths are the same and the identifier of the signal route set group is input as the routing information of the corresponding signal point, the routing information of the corresponding signal point is operated as the routing information of the signal route set group (S130). ). Accordingly, signal points having the same routing information and routing information of the signal route set group are grouped and managed.

On the other hand, if the two routing paths are not equal to each other as a result of the determination in step S120, when the identifier of the signal route set group is not input as the routing information of the corresponding signal point, the routing information for the corresponding signal point is received for each individual route (S140). ). Therefore, signal points for which routing information and routing information of the signal route set group are not the same are managed separately.

For example, when the routing path for the signal point SEP4 is the same as the routing path of the signal route set group, the routing information for the signal point SEP4 is input and processed as the identifier SRG1 of the signal route set group, and the routing for the signal point SEP4 is processed. If the route is not the same routing route of the signal route set group, the routing information for the signal point SEP4 is input for each route such as LS100, LS110, and LS500, and the LS100 is 0 as the normal route and LS110 as the normal route information. The priority route is 0 for normal routes and the LS500 receives priority 1 for bypass routes.

7 is a view illustrating a routing data management process in the signal routing path management method in No. 7 signal network according to the present invention.

First, when a predetermined signal link set is unavailable (S210), routing data of the signal route set group is changed (S220) in order to transmit the signal traffic transmitted on the unavailable signal link set to the available signal link set. In addition, in the above-described process S220, as a predetermined signal link set is not available, routing data of a signal point managing routing information for each affected route is also changed.

When the signal link set that was not available is available (S230), routing data of the signal route set group is changed to transmit signal traffic to the available signal link set (S240). In addition, in the above-described process S240, as the unusable signal link set is available, routing data of the signal point managing routing information for each affected route is also changed.

For example, when the signal link set LS100 is unavailable, the routing data of the signal route set group SRG1 is changed to route by routing the signal traffic routed to the LS100 to LS110, and the signal being routed to the LS110 when the signal link set LS100 is available. The routing data of the signal route set group SRG1 is changed so that the signal link sets LS100 and LS110 load-route the traffic.

8 is a view for explaining a routing data update process in the signal routing path management method in No. 7 signal network according to the present invention.

First, routing information is composed of routing prohibition messages (calling point code, called point code, prohibition message indicator, prohibition of signal point signal prohibiting transmission, etc.) to predetermined signal points which are operated by grouping routing information of signal route set. When receiving the message indicating that the signal traffic routing to the signaling point from which the prohibition message is transmitted is impossible), routing information of the corresponding signaling points that have been managed by grouping are converted into individually managed forms (S310 and S320). This is because the routing path of the signal point at which signal traffic is prohibited from propagating is different from the routing path of the signal route set group. Therefore, the signaling point sending the prohibition message should configure routing data separately from the signaling point.

In addition, it is possible to route signal traffic to a signal point that transmits a transmission permission message by consisting of a transmission permission message (calling point code, called point code, transmission permission message indicator, and transmission permission signal point code) to a predetermined signal point. When receiving a message for notifying that the message is notified), routing information of individually managed signal points is converted into routing information grouped into routing information of a signal route set (S330 and S340). This is because the routing path of the signal route set group and the routing path of the corresponding signal point are the same, so there is no need to configure routing data separately.

For example, when routing information is received from STP3, which prohibits the forwarding of a message to a predetermined signal point SEP4 that is operated by grouping routing information of the signal route set group, the routing path of the signal route set group is LS100. , LS110 and LS500, and the routing information for the signal point SEP4 is different from each other as the routing paths for the LS110 and LS500, thereby managing routing information for the signal point SEP4 separately.

In addition, when the transfer permission message allowing the transfer of the message to the predetermined signal point SEP4 is received from STP3, the routing paths for the corresponding signal point SEP4 are LS100, LS110, LS500, and the routing path of the signal route set group is LS100, The routing information becomes the same with the LS110 and the LS500, so that routing information on the signal point SEP4 is grouped and managed as routing information of the signal route set group.

The signal routing path management method in the No. 7 signal network of the present invention is not limited to the above-described embodiments, and may be variously modified and implemented within the range permitted by the technical idea of the present invention.

According to the signal routing path management method in the No.7 signal network of the present invention as described above, when the signal routing path for the signal points of other regions are the same, the signal routing path for the corresponding signal point is converted into the signal route set group. By processing, it is possible to reduce operational errors and to reduce signal network routing data update load to perform stable signal network operation.

Claims (4)

A signal route set group construction process of configuring signal route sets having the same signal route path into each signal route set group; A routing data management process for managing routing data regarding routing information of the signal route set group according to whether a signal link set is available; And Signal routing path management in the number seven signal network comprising a process of updating the routing data management type of the signal point , which updates the routing data management type of the routing information of the signal point according to whether the message is transmitted to a predetermined signal point Way. The method of claim 1, wherein the configuring of the signal route set group comprises: Receiving a signal route set group identifier, signal link sets to route signal traffic, and each signal route information to form a signal route set group; And routing the routing information of the signal point having the same route point as the signal route set group as the routing information of the signal route set group. The routing data management procedure of the signal route set group according to claim 1, Altering routing data of the signal route set group to transmit signal traffic that was transmitted on the unusable signal link set to the available signal link set if a given signal link set is unavailable; Changing the routing data of the signal route set group to transmit signal traffic to the available signal link set if the unused signal link set is available. How to manage. The method of claim 1, wherein the updating of the routing data management type of the signal point comprises: Converting routing information of the signal point into a form in which the routing information of the signal point is separately managed when receiving a transmission inhibit message to a predetermined signal point; In the case of receiving the transfer permission message to a predetermined signal point, the signal in the number seven signal network comprising the step of converting the routing information of the signal point into the form of operating as routing information of the signal route set group How to manage routing paths.