CN100488262C

CN100488262C - A method for implementing route balancing based on SPC exchange

Info

Publication number: CN100488262C
Application number: CNB2003101038760A
Authority: CN
Inventors: 赵世尊; 葛聪; 王日红; 邵春
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2003-11-18
Filing date: 2003-11-18
Publication date: 2009-05-13
Anticipated expiration: 2023-11-18
Also published as: CN1545335A

Abstract

The invention is a method to implement route balance based on program-controlled exchanger, including the main step: analyzing calling numbers in an incoming module, according to relation data, determining an outgoing route link, determining an outgoing route array from the outgoing route link, then determining the current selected route in the outgoing route array and determining the next route to be selected, and correspondingly changing the relation data; the incoming module sends information to an outgoing module that the current selected route corresponds to; search an idle relay that the current selected route corresponds to in the outgoing module; if the relay module has no idle relay, return to the incoming module for operating; otherwise occupy the idle relay and transmit signals to an adjacent bureau through the idle relay and then continuously process the signals by the adjacent bureau. It can balancedly select outgoing route, make full use of bureau-to-bureau relay resources and heighten call completing rate of the whole.

Description

A kind of method that realizes route balance based on stored-program control exchange

Technical field

The present invention relates to a kind of method based on stored-program control exchange realization route balance, be specifically related to can select each outgoing route is balanced based on stored-program control exchange, telephone traffic can balancedly arrive in abutting connection with the method for office.

Background technology

In telecommunications industry, the height of call completing rate is the important indicator of check one exchange performance always.Stored-program control exchange is as a node on the communication network, and be connected with relaying between other node, and relaying is corresponding with outgoing route on data.For preventing the impact to its adjacent node when calling out of a switching node, require switching node when outgoing, balancedly to select outgoing route, to guarantee the equalizing traffic volume on each relaying of adjacency office, avoid on a certain relaying telephone traffic too high, produce Call Congestion, and telephone traffic is too low on other relaying, has caused overall call completing rate low excessively.

All routing databases of an object code striking out are identified by the outgoing route chain.Wherein, the outgoing route chain comprises a plurality of group of routes.Each group of routes is made up of a plurality of routes, the corresponding relaying group of each route, and each relaying group can belong to different routes, makes these trunk module groups have separately independently Route Selection characteristic.Each route relaying component load traffic load of same group of routes.The relation of route chain, group of routes, route and relaying group is seen accompanying drawing 1.

Usually adopting the method for polling to reach traffic load between each route in a group of routes shares.But the traffic of but finding each route relaying group in the same group of routes (each relaying group circuit function is the same) in beginning process of reality is extremely inhomogeneous.When the route in the group of routes is evenly distributed on 10 peripheral modules, calling then concentrates on 3 modules wherein, the traffic of finding the outgoing route on each module at last is extremely unbalanced, the telephone traffic of some route is near zero, promptly this route almost is the blind area of out routing, and this phenomenon illustrates that there is certain defective in the method for sequentially choosing between each route.

Adopt method for sequentially choosing to cause route can not the balanced main cause of selecting as follows:

The relation data R_RUTSET that describes each route in the group of routes is distributed on each module of the overall situation, routeno field wherein is to call out selected routing number on front module, call is after selecting route on the front module, and the routeno field is updated to the routing number that next time will select.If each module all has calling, per call is all from finding out an innings route by the routeno field the module group of routes separately, because of the calling on each module is at random, cause the routeno field meeting on disparate modules different, in order to keep the consistency of the routeno field overall situation, the routeno field of change table R_RUTSET on the module of out relaying, the normal sequence of the selection route of tables of data R_RUTSET is destroyed on the module of the out relaying of result, causes strictly realizing the harmony of same group of routes selection route in the overall situation.

The unbalanced meeting of this outgoing traffic brings following drawback:

1: the interoffice junction module is not well utilized, and trunk module is frequently used on the route of often selecting, and the trunk module of other route correspondence possibly can't use, and has caused the significant wastage of interoffice junction module;

2: unbalanced because of outgoing traffic, bigger to impacting in abutting connection with office when traffic peak, overall call completing rate reduces;

3: increase the complexity that local exchange is selected route, cause when telephone traffic is big and select route often to fail, and select the increased frequency of route, take the time of a lot of processors, intermodule message increases.

Summary of the invention

An object of the present invention is to provide a kind of method based on stored-program control exchange realization route balance that can overcome shortcoming in the above-mentioned prior art.The present invention can balancedly select outgoing route, makes full use of the relay resource of interoffice, improve overall call completing rate.

The present invention specifically is achieved in that

A kind of method based on stored-program control exchange realization route balance comprises the steps:

The relation data of a, the outgoing route chain that stored-program control exchange is set, group of routes, route, this relation data is separate;

B, signal carry out outbound call from an incoming module Incoming of stored-program control exchange;

C, on incoming module analyzing calling numbers, determine the outgoing route chain according to relation data, from the outgoing route chain, determine out group of routes, in the outgoing route group, determine the route of current selection again, and the definite route that next time will select, relation data is done corresponding change;

D, incoming module are sent out message on the pairing out module of the route of current selection;

The pairing idle relay module of route of e, the current selection of searching on out module;

If the pairing trunk module of the route of the current selection of f does not have idle relaying, then return step c again;

If the pairing trunk module of the route of the current selection of g finds idle relaying, then take this idle relaying, by this idle relaying signal is sent in abutting connection with office, by continuing to handle in abutting connection with office.

Relation data comprises route group number and current Route Selection sequence number, and relation data is distributed on all modules of stored-program control exchange.

On out module, do not change relation data.

The maximum characteristics of the method for the invention are that the equilibrium that can reach the interoffice route is selected, and improve the utilance of interoffice junction module, call out when reducing the telephone traffic peak value the impact in abutting connection with office, improve the call completing rate of the overall situation.

Description of drawings

Fig. 1 is the schematic diagram that concerns between route chain, group of routes, route and the relaying group;

Fig. 2 is the present invention's one specific embodiment;

Fig. 3 is the flow chart of the method for the invention.

Embodiment

The present invention is based on following technical scheme realizes:

1: the independence of the routeno field of each module co-relation table R_RUTSET.

The overall situation has a plurality of modules, the incoming module of calling out may be different with out module, routeno field according to relation table R_RUTSET on incoming module is selected outgoing route, simultaneously the routeno field value is changed into the routing number that the next one will be selected, send out message then and on out module, find out an innings trunk module, on out module, do not change the value of the routeno field of relation table R_RUTSET, the routeno field that has so just prevented out module co-relation table R_RUTSET is subjected to the influence of incoming module, has guaranteed the independence of the routeno field of each module co-relation table R_RUTSET;

2: return incoming module when selecting out routing failure and reselect next bar route.

If this selects out routing failure, on current out module, do not look for next bar route by the routeno field of relation table R_RUTSET, look for next bar route but turn back on the incoming module by the routeno field of relation table R_RUTSET, that is to say, the Route Selection of call all is to be controlled by the routeno field of incoming module co-relation table R_RUTSET, it all is balanced that assurance is gone into trunk module selection outgoing route from each, then the overall situation all go into trunk module to select outgoing route also be balanced, reach the harmony that the overall situation is selected outgoing route with this.

Wherein relation database table R_RUTSET is described below:

Outgoing route group is configurable 12 routes at most, determine that by Routeno this calls out selected routing number, so that circulation is selected in 12 routes.This tables of data is distributed on all modules of the overall situation.

The present invention is based on the embodiment of stored-program control exchange route balance system of selection as shown in Figure 2.Have three exchanges 485,676,771 among the figure, the multimode office that forms by 7 modules for 676 innings wherein, 485 innings and 771 innings is 676 innings adjacent exchange.Rise by 485 innings of 4850000 user and to exhale, call out 771 innings of 7710000 user, middle through 676 innings of tandems.485 innings calling is respectively by 3#, 4#, and the 5# module is gone into 676 innings, and then through 676 innings route R1, R2, R3 be respectively by 6#, 7#, 8# module striking out to 771 innings.Mapping table R_RUTSET is described below (for different modules, the Routeno field value may be different):

771 innings of users of 485 innings of customer calls, when going into 676 innings by the 3# module, carry out number analysis at 676 innings, the routeno field of pressing relation table R_RUTSET is from (R1, R2, R3) select outgoing route in, and the routeno field value on the change 3# module, be 1 as the current routeno field value of 3# module, then this selects route R1, and the routeno field value is set is 2, and representing select route next time is R2.Send out message then to R1 place module 6#, look for the striking out of idle relay module, on the 6# module, no longer change the routeno field value of relation table R_RUTSET in the 6# module.When the out trunk module of selection route R1 is failed on the 6# module, on the 6# module, do not select new route, but send out message, select route R2 by the current routeno field value 2 of 3# module to the 3# module.Because the independence of the routeno field of each module co-relation table R_RUTSET, by the continuous variation of routeno field value, reach from the all-calls of 3# module Incoming can both be balanced from (R1, R2 select route in R3).

Go into from 4#, 5# module 676 innings situation with go into from the 3# module 676 innings similar, can both guarantee each incoming module equilibrium from (R1, R2 select route in R3), thus reach that 676 overall situations can both be balanced from (R1, R2 select route in R3).

Although have illustrated and described the preferred embodiments of the present invention, one of ordinary skill in the art should be appreciated that and can implement the consubstantiality of various changes, modification and parts and replace under the situation that does not exceed the scope of the invention.Therefore the present invention is not subject to disclosed realization specific embodiments of the invention, the present invention includes all embodiment that drop within the claims.

Claims

1, a kind of method based on stored-program control exchange realization route balance is characterized in that:

Each module relationship data of the overall situation are set to separate, and the Route Selection of calling is selected outgoing route by incoming module, specifically comprises:

At first determine outgoing route according to the routeno field of relation table R_RUTSET, simultaneously the routeno field value is changed into the routing number that the next one will be selected by incoming module;

Send out message then to out module, on out module, do not change the value of the routeno field of relation table R_RUTSET;

When selecting out routing failure, return incoming module and reselect next bar outgoing route.

2, realize the method for route balance according to claim 1 based on stored-program control exchange, it is characterized in that:

If select out routing failure, return incoming module and look for next bar outgoing route according to the routeno field of relation table R_RUTSET.

3, a kind of method based on stored-program control exchange realization route balance may further comprise the steps:

If the pairing trunk module of the route of the current selection of g finds idle relay, then take this idle relaying, by this idle relaying signal is sent in abutting connection with office, by continuing to handle in abutting connection with office.