JPS5941952A - Diagnostic processing system in common channel signaling - Google Patents

Abstract

PURPOSE:To shorten the time of 100% load of a link to resolve trouble in on- line service, by giving a redundant constitution to a common channel signal processing device and controlling the connection of link between the device and a signal transfer point. CONSTITUTION:A common channel signal processing program and a diagnostic processing program are stored in a main storage device MM, and the device MM is connected to a common channel signal processing controller CSP. If a common channel signal processing device CSC0 or CSC1 having the redundant constitution becomes faulty, the controller CSP transfers the load between the device CSC0 and a signal transfer point STP0 to the link between the device CSC1 and a signal transfer point STP1 and removes the device CSC0 from service and subjects the device CSC2 to service. Further, a network controller NWCTL is controlled to release the link between the device CSC0 and the STP0, and the link between the deivce CSC2 and the STP0 is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a common line signaling system, and more particularly to a device diagnostic system in the common line signaling system.

In the common line signaling system, a signal transmission path is constructed by cascading multiple 1-bear signal transfer points that are mutually connected by cross-links between different telephone exchange offices, and a redundant configuration is created as a communication network. , increasing its reliability. Therefore, there are two links (A-links) between the telephone exchange and the signal transfer point. Normally, each link is loaded with 50% of the traffic, and if a failure occurs in one of the links, the entire load of the failed link is transferred to the other link, affecting the total traffic volume. I try not to have any.

Conventionally, when such a failure occurs, the common line signal processing unit accommodating the failed link is removed from service, and the diagnostic process 371! was being carried out.

For this reason, we believe that if all the lines are lined up for a long time for diagnostic processing, problems will occur in online service, such as a decrease in the reliability of the link and an overflow of the processing capacity of the common line signal processing device and the common line signal processing control device. It will be done.

The present invention has been made by paying attention to the above-mentioned actual situation in the prior art, and therefore, an object of the present invention is to make the common line signal processing device redundant and control the connection of the link between the signal transfer point and India. By doing this, when a common line signal processing device fails, a spare common line signal processing device is brought into service, and the failed common line signal processing device is removed from service, and the common line signal processing device becomes 100% serviceable. It is an object of the present invention to provide a new diagnostic processing method capable of reducing the above-mentioned inconvenience as much as possible by shortening the time during which the system is in a loaded state.

In order to achieve the above object, the present invention provides a signal processing program connected to a common line signal processing control device in a common line signaling system via a data channel and stored in the main memory of the common line signal processing control device. A plurality of common line signal processing devices that perform transmission/reception (distinguishing the type of d, giving order, giving parity, checking, etc.) and the common line signal processing devices are accommodated via a modulation/demodulation device, and further from a signal transformer 7 appointments. a circuit network accommodating a voice frequency link of 1111, and a circuit network for closing the link between the signal transfer point pmJ and the common line processing device according to a command from the common line signal processing control device 1111; It consists of a network controller.

Next, a preferred embodiment of the present invention will be specifically described with reference to warm blood.

FIG. 1 is a block diagram showing an embodiment of a signal processing system in a common line signaling system according to the present invention.

In the figure, main memory fit! The MM stores a common line signal processing program and a diagnostic processing program 2, and is connected to the common line signal processing control unit fEffi C8P, which is the core of the common line signal processing system.

The common line signal processing control unit ffcsi) connects the hybrid integrated bus 1- to the data channel DCH.
A common line signal processing device C that performs type distinction, order assignment, parity assignment, and checking of transmitted and received signals via 11B.
3CO, C3CI, C8C2 and a circuit network controller NWCTL for closing the circuit mNW accommodating two voice frequency links VFL from signal transfer points 5TPO and 5TPiL.

The modem f MOIM is used to accommodate the voice frequency link VFL in the common channel signal processing device C8C.

Normally, the common line signal processing devices, csco and csci, are connected to the voice frequency link Vl''L of the signal transfer points 5TPO and 5T))1, respectively, under the link control of the network NW, and share 50% of the traffic. Provided for online services.

The common line signal processing device ff C8C2 is maintained in an idle state as a pre-excitation. That is, an n+1 redundant configuration is adopted.

Here, the common line signal processing device C3CO (or C3CI)
When a failure occurs in the common line signal processing unit C8P, the common line signal processing unit C8P transfers the load between the common line signal processing unit csco and the common line signal processing unit C8P (signal transfer point)
- Move the signal transfer point to the link between 5TPI, remove the common line signal processing unit csco from service, and put the common line signal processing unit C8C2 in service instead. Furthermore, by controlling the network controller NWCTL, the link between the common line signal processing unit Rcsco and the signal transfer point S T P O is released;
At the same time as closing the link between common line signal processing device r#, C3C2 and signal transfer point 5TPO in the circuit network NW, common line signal processing device C3CI and C8C2
Distribute traffic by 0%.

Next, the common line signal processing control unit fRcsP uses the diagnostic processing program to detect the common line signal processing unit C3C in which the fault has occurred.
Diagnose and process O.

Even when a failure occurs in the common line signal processing device C3CI, the same processing as described above for the common line signal processing device csco is executed.

Although the structure and action of the present invention have been explained above with respect to a favorable embodiment thereof, these are merely illustrative, and the present invention is therefore limited to the embodiments clarified here. The invention is not limited, and within its scope, 1
It is easy to modify and change ift h. For example, in the above-mentioned embodiment 1, a spare common pure signal processing device is 1 f
Although this is about the case where 1F1 is used, it goes without saying that the number may be 2 or more than 1.

As mentioned above, 112 tracing (M processing unit F (C8C is made redundant (characteristic), shiftal transfer point) link connection with S'rP By controlling the common Iyi! signal processing device C8C
A common pure signal processing device during failure? , 'i C3C-signal transfer point S TP link is 10
The period of 0% traffic load can be shortened,
Diagnostic processing takes a long time. Even in the case of low reliability of the link, the low T1 common line signal processing unit @C8C and the common line signal processing control bag [C8P] have the effect of not causing any inconvenience to online services such as overflow of processing capacity.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a signal processing system for illustrating a diagnostic processing method in a common line signaling system according to the present invention. MMIIIle main memory, C8P@φ/common line signal processing control device, DCH---data channel, HIB-・
・Hybrid integrated bus, CSC. -C8C2 bone/common line signal processing device, M, 0T)F,
M O~MODEM2---Modulator/demodulator, Nwll...Circuit network, NWCTL...Circuit network controller, vFL...Voice frequency link, 5TPO, 5TPI...Signal transfer point Patent applicant NEC Corporation company

Claims (1)

[Claims] In the common line signaling system, the common line signal processing control device is connected to the common line signal processing control device via a data channel, and the types of transmitted and received signals are distinguished under the control of a signal processing program stored in the main memory of the common line (Fi signal processing control device). a plurality of common line signal processing devices that perform order assignment, parity assignment, checking, etc.; a circuit network that accommodates the common line signal processing devices via a modulation/demodulation device and further accommodates a voice frequency link from a signal transfer point; a circuit network controller for closing the link between the signal transfer point and the common line signal processing device according to a command from the common line signal processing control device; The circuit network is controlled, and the common line signal processing device has a redundant configuration for the signal transfer point, and when a failure occurs in the common line signal processing device, a spare common line signal processing device is provided as a service, and the failure is resolved. A diagnostic processing method in a common line signal system, characterized in that a common line signal processing device in which a problem occurs is removed from service and then diagnosed.