CN1314231C - Self circulation method for program control exchanger - Google Patents
Self circulation method for program control exchanger Download PDFInfo
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- CN1314231C CN1314231C CNB011391669A CN01139166A CN1314231C CN 1314231 C CN1314231 C CN 1314231C CN B011391669 A CNB011391669 A CN B011391669A CN 01139166 A CN01139166 A CN 01139166A CN 1314231 C CN1314231 C CN 1314231C
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Abstract
The present invention relates to an automatic circulating method for a program control exchanger, which comprises the following steps: a No. 7 automatic circulating request is initiated to the exchanger by an operation maintaining platform; the exchanger relieves a blocked state of time slot of a corresponding junction circuit and a switched network to enter an idle state; a user partially judges whether to automatically circulate or not before the NO. 7 information is sent to MTP-L3; if true, then a source address in the NO. 7 information is exchanged with a destination address, else, then the user partially and directly sends the NO. 7 information to HMRT of MTP-L3; finally, HMRT judges whether to automatically circulate or not after receiving the NO. 7 information partially sent by the user; if true, then the information is directly sent to HMDT, else, then the NO. 7 information is sent to MTP-L2 after being slowly stored. The present invention realize automatic circulation of NO. 7 signaling by software and overcomes the defects of more hardware source occupation and time and labor consumption for adjustment and measurement of an original automatic circulating method; furthermore, the present invention has the advantages of rapidness, convenience and easy implementation.
Description
Technical field
The invention belongs to the program controlled switch technology field, specifically, relate to a kind of method of the Signaling System Number 7 that uses in the stored-program control exchange being carried out oneself ring.
Background technology
Along with digital communication technology and Development of SPC Switching Technology, Signaling System Number 7 has obtained using widely as a kind of signaling system of the most suitable digital communication network.No.7 signalling system generally is divided into four functional levels, is respectively User Part, comprises Telephone User Part TUP, integrated service User Part ISUP and SCCP SCCP; Signaling network functional level MTP-L3 comprises message routing module HMRT and Message Distribution Module HMDT; Signaling link function level MTP-L2; Signaling data link functional level MTP-L1, as shown in Figure 1.The function of above-mentioned 4 functional levels and mutual interface, the ITU-T of International Telecommunication Association has detailed regulation, so do not repeat them here.Wherein Telephone User Part TUP and integrated service User Part ISUP can transmit the various calling controls and the control information that continues effectively.The type of present domestic stored-program control exchange, signaling kind are numerous; run into the problem of different type of machines, different signaling method intercommunications through regular meeting; in addition; because new business introducing and edition upgrading, test are frequent; also often need carry out verification and testing to the signaling capability of TUP and ISUP, ring is the effective means that realizes this purpose certainly.
Carry out at present the self-looped testing of Signaling System Number 7 generally speaking, need two 2M trunk lines of same office direction to receive and dispatch butt joint with the relaying self-loop line, and the identical time slot of each trunk line all comprises 1 No. seven link, could on trunk line, carry out after the link activation from ring around.Fig. 2 has provided existing from the schematic diagram that encircles method.This method at first need be set up from the loop chain road, generally is to set up tradable semipermanent path by SS7 Signaling Processing Board through digital switching network and Digital Trunk Board, receives two time slots of PCM system again, and the 64kbit/s signaling data link of two mutual loopbacks is provided.As seen from the figure, the message that User Part produces is delivered to after the signaling network functional level MTP-L3, deliver to signaling link function level MTP-L2 by message routing module HMRT, connect by semipermanent path again and deliver to signaling data link functional level MTP-L1, after relaying self-loop line loopback, reenter signaling data link functional level MTP-L1, send into Message Distribution Module HMDT by signaling link function level MTP-L2 again, send into User Part again by the latter.
This method no doubt can compare complete simulation to the at different levels of Signaling System Number 7, but it has following shortcoming:
At first, this method can take more hardware resource.Owing to will set up the looping back data link, thereby need two No. seven links and two 2M trunk lines at least.Under the relatively more sufficient situation of the hardware resource of free time, this does not have any problem, but under the relatively nervous or more incomplete situation of hardware resource, then can bring very big inconvenience to work.
Secondly, this method will be in the alarm of eliminating the 2M trunk line, just can carry out behind the active link from ring around, therefore need the time of one section debugging, and because the condition of hardware quality is indefinite, therefore foundation is also very difficult definite from encircling the required time, can take a long time when condition of hardware is bad.
Current different type of machines achieves a butt joint, and the intercommunication between the different signaling, and problem mainly goes out the User Part more than signaling network functional level MTP-L3, comprises TUP, ISUP, SCCP etc.The upgrading of software version, test, improvement also mainly concentrate on the 4th functional level User Part in addition, MTP-L3 and much then relatively stable with the lower part.
Summary of the invention
Therefore technical problem to be solved by this invention provides a kind of hardware resource that do not take, the method for ring certainly that can simulate the signaling capability of the User Part of Signaling System Number 7.
Of the present invention from the ring method, may further comprise the steps:
One, initiates No. seven a ring request certainly by the Operation and Maintenance platform to switch;
Two, switch is removed the blocked state of relevant repeat circuit and switching network time slot, makes it to enter idle condition;
Three, User Part is before No. seven message of signaling network functional level MTP-L3 transmission, and judging whether will be from ring, if then forward step 4 to; If not, then forward step 5 to;
Four, source address and destination address in No. seven message are exchanged, and handle at No. seven different informed sources, No. seven message after User Part will be changed are then issued the message routing module HMRT of signaling network functional level MTP-L3; Go to step 6;
Five, User Part directly sends to No. seven message the message routing module HMRT of signaling network functional level MTP-L3;
Six, after message routing module HMRT received No. seven message that User Part sends, judging whether will be from ring, if, then message is directly mail to Message Distribution Module HMDT, send back to User Part by Message Distribution Module HMDT again; Otherwise, No. seven message are sent to signaling link function level MTP-L2 after by buffer memory, send by No. seven links of physics again.
In sum, the method of the invention can adopt software to realize that Signaling System Number 7 is from ring, overcome and originally taken more hardware resource from the ring method, transfer the shortcoming of surveying time and effort consuming, have fast, easy, the advantage of easy row, the present invention can simulate the various signal messages of User Parts such as TUP/ISUP/SCCP fully, call flow has a wide range of applications in processes such as digital SPC exchange, SGW, intelligent network, the edition upgrading of product such as moving, test, functional verification, fault locating analysis.
Description of drawings
Fig. 1 is the structural representation of No.7 signalling system.
Fig. 2 is existing from the schematic diagram that encircles method.
Fig. 3 is of the present invention from the schematic diagram that encircles method.
Fig. 4 is of the present invention from the structural representation that encircles an embodiment of method.
Fig. 5 is that system shown in Figure 4 is created the process chart from ring.
Fig. 6 is the process chart that the User Part of system shown in Figure 4 sends No. seven message.
Embodiment
Below in conjunction with drawings and Examples, further describe the present invention.
As shown in Figure 1, No.7 signalling system is divided into four functional levels, comprise User Part, comprising Telephone User Part TUP, integrated service User Part ISUP, SCCP SCCP etc.: signaling network function MTP-L3, comprise message routing functionality HMRT, distribution of messages function HMDT: signaling link function MTP-L2; Signaling data link function MTP-L1.What the method for the invention solved promptly is the ring certainly of User Part.
Fig. 2 has provided existing from the schematic diagram that encircles method.The message that User Part produces is delivered to after the signaling network functional level MTP-L3, deliver to signaling link function level MTP-L2 by message routing module HMRT, deliver to signaling data link functional level MTP-L1 by semipermanent connection again, after relaying self-loop line loopback, reenter signaling data link functional level MTP-L1, send into Message Distribution Module HMDT by signaling link function level MTP-L2 again, send into User Part by the latter.This method can take more hardware resource, and required debug time is subjected to the influence of condition of hardware.
Elaborate of the present invention from the ring method below in conjunction with Fig. 3.As seen from Figure 3, core of the present invention is that promptly the message that User Part produces delivers to after the signaling network functional level MTP-L3, HMRT directly delivers to Message Distribution Module HMDT by its message routing module, is sent into User Part and is no longer passed through signaling link function level MTP-L2 and signaling data link functional level MTP-L1 by the latter again.Therefore this method does not need to set up from the loop chain road, does not need the cooperation of hardware resources such as Signaling System Number 7 plate, Digital Trunk Board and relaying self-loop line yet.
When the user initiates No. seven after the ring request by the Operation and Maintenance platform, the main control module of switch is to switch database transmitting single plate reset message, remove the zero time slot hardware obturation of all PCM on the veneer by database, main control module sends PCM to database again and separates and close message and signalling point can reach message then, remove the time slot obturation of the inaccessible and switching network of the fault of this PCM by database, and remove this signalling point be correlated with the signaling obturation and the far-end obturation of trunk group to this PCM.This is just can enter idle condition because repeat circuit and switching network time slot must be removed various obturations, and the resource that only is in idle condition in calling could be occupied, therefore before No. seven message of transmission, repeat circuit and switching network time slot need be entered idle condition, thereby can in calling, take and simulate real call flow.
User Part all will judge whether before No. seven message of each transmission will be from ring, if encircle certainly, then exchange the OPC Origination Point Code OPC and the Destination Point Code DPC of No. seven message of desire transmission, promptly exchange source address and destination address, this is because the Message Distribution Module HMDT of signaling network functional level MTP-L3 whenever receives No. seven message, will judge all whether its destination address is oneself, having only destination address is that oneself message just receives, otherwise just this message is abandoned.Be actually own from ring and receive, but generally speaking, the message that sends out is oneself to send out others to receive, and only becomes others' when receiving and receives from oneself from oneself.Therefore the present invention has done a processing when transmission, is exactly switching purpose address and source address, makes message become " others receives from oneself " from " oneself is sent out others and receives ", and the next message of loopback could be received smoothly by Message Distribution Module HMDT like this.If do not need, then No. seven message is directly sent to the message routing module HMRT of signaling network functional level MTP-L3 from ring.
No. seven message of sending for Telephone User Part TUP or integrated service User Part ISUP, need judge again that also whether the cic circuit identification code CIC of these No. seven message is less than set-point, if, then the cic circuit identification code CIC with these No. seven message adds an increment size, otherwise, the cic circuit identification code CIC of these No. seven message is deducted increment size.If No. seven message that SCCP SCCP sends, then with calling party address CGA and called subscriber address CDA exchange.No. seven message after will changing are then issued the message routing module HMRT of MTP-L3.
After message routing module HMRT received No. seven message that User Part sends, judging whether will be from ring, if, then message is directly mail to Message Distribution Module HMDT, send back to User Part by Message Distribution Module HMDT again; Otherwise, message is sent to signaling link function level MTP-L2 later on by buffer memory.
It is of the present invention from the structural representation that encircles an embodiment of method that Fig. 4 provides utilization.Present embodiment is made up of foreground 11 and backstage 21 two parts.Foreground 11 comprises network interface unit 16,12, No. seven User Parts 13 of main control module, HMRT module 14, HMDT module 17, and database 15.Backstage 21 comprises Operation and Maintenance interface 22; Link to each other by internal lan between foreground 11 and the backstage 21.Wherein, main control module 12 is used to handle the command request of coming on the backstage and transmit message between AM/BAM; The static configuration data and the dynamic state data of 15 in store systems of database comprise trunk group, office direction, and signalling point Connected Status etc. provide the interface of external module accessing database in addition.
In conjunction with Fig. 5 No. seven soft courses of work from ring of system creation shown in Figure 4 are described now.
Be the system configuration data necessary at first, comprise the establishment number 7 signaling, No. seven trunk groups etc., i.e. step 101 by Operation and Maintenance interface 22.Then by Operation and Maintenance interface 22 initiate No. seven soft from the ring request, step 102, comprising will be from two PCM 32 of ring, middle CIC value 33 and CIC increment size 34 etc., latter two data are only at the message of TUP/ISUP transmission.The request of No. seven soft rings is certainly mail to main control module 12 by network interface unit 16.
Main control module 12 is received after this request, at first indicates 31 with soft from ring, be from two PCM 32 of ring, and middle CIC value 33 and CIC increment size 34 are preserved step 103 with the form of global variable.Main control module 12 sends " board resetting message " (step 104) to database 15, and wherein the veneer of indication is will be from the Digital Trunk Board at PCM 32 places of encircling.This message is represented that related single-boards has powered on and is entered presence.Database 15 is received after this message, with inaccessible remove (step 105) of the hardware such as TS0 of all PCM on this veneer.Main control module 12 sends " PCM separates and closes message " (step 106) to database 15 then, and wherein the PCM of indication is will be from the PCM 32 of ring.This message represents that relevant PCM receives and dispatches alarm and eliminates.Database 15 is received after this message, removes the fault obturation of this PCM, time slot unblocking (step 107) that simultaneously will be from digital switching network to this PCM.Main control module 12 sends " signalling point can reach message " (step 108) to database 15 afterwards, and wherein the signalling point of indication is will be from the trunk group corresponding signaling point at the PCM32 place of encircling.This message represents that relevant signalling point can reach.Database 15 is received after this message, removes the signaling obturation and the far-end obturation (step 109) of the relevant trunk group of this signalling point.So far, enter idle condition from the PCM 32 and the related time-slot thereof of ring, set up and softly finished in steps from encircling required institute, next step can take these relayings and time slot has been called out.
The flow process of No. seven message of User Part transmission in the system shown in Figure 4 is described below in conjunction with Fig. 6.
At first, User Part 13 is sending to No. seven message before the signaling network functional level MTP-L3, judges earlier that whether soft be very (step 121) from ring sign 31:
If be true,, be that TUP/ISUP or SCCP carry out different processing according to User Part 13 more then with the OPC Origination Point Code OPC and the Destination Point Code DPC exchange (step 122) of described No. seven message.If TUP/ISUP, whether the CIC that then judges described No. seven message is less than middle CIC value 33 (step 123), if, then the CIC with described No. seven message adds CIC increment size 34 (step 124), otherwise, the CIC of described No. seven message is deducted CIC increment size 34 (step 125), and No. seven message after will changing are then sent to the HMRT module 14 of signaling network functional level; If User Part 13 is SCCP, then with calling party address CGA and called subscriber address CDA exchange (step 126), No. seven message will more correcting one's mistakes afterwards are dealt into the HMRT module 14 (step 127) of signaling network functional level MTP-L3.
If be false,, directly be dealt into the HMRT module 14 of signaling network functional level MTP-L3 then with No. seven message.
After last HMRT module 14 was received No. seven message that User Part sends, whether from ring sign 31 be true (step 128), if be very, then message is mail to HMDT module 17 (step 129) if judging soft.Otherwise,, message is sent to MTP-L2 (step 130) later on by buffer memory by the normal process flow process.
In sum, the method that a kind of stored-program control exchange of the present invention encircles certainly is by setting up a through virtual link between sending module and receiver module, simulate various veneers simultaneously, PCM, the message that signalling point is ready makes relevant relaying, time interval resource enter upstate, thereby can call out and circuit/circuit group operation, not needing to have realized hardware resource, the purpose of the various message signale flow processs of pure software method simulation Signaling System Number 7 User Part.The user only need import an instruction on the Operation and Maintenance interface, just can realize the ring certainly of Signaling System Number 7 User Part, thereby alleviate workload greatly, has more good effect in that hardware resource is not full-time.
Claims (8)
1, a kind of stored-program control exchange is characterized in that: may further comprise the steps from the method for ring:
One, initiates the request of a soft ring certainly of Signaling System Number 7 by the Operation and Maintenance platform to switch;
Two, switch is removed the blocked state of relevant repeat circuit and switching network time slot, makes it to enter idle condition;
Three, User Part is before sending Signaling System Number 7 message to signaling network functional level MTP-L3, and judging whether will be from ring, if then forward step 4 to; If not, then forward step 5 to;
Four, source address in the Signaling System Number 7 message and destination address are exchanged, and handle at different Signaling System Number 7 informed sources, the Signaling System Number 7 message after User Part will be changed is then issued the message routing module HMRT of signaling network functional level MTP-L3; Go to step 6;
Five, User Part directly sends to Signaling System Number 7 message the message routing module HMRT of signaling network functional level MTP-L3;
Six, after message routing module HMRT received the Signaling System Number 7 message that User Part sends, judging whether will be from ring, if, then message is directly mail to Message Distribution Module HMDT, send back to User Part by Message Distribution Module again; Otherwise, Signaling System Number 7 message is sent to signaling link function level MTP-L2 after by buffer memory, send by No. seven links of physics again.
2, as claimed in claim 1 from the ring method, it is characterized in that: described step 2 comprises the following steps,
1) main control module of switch is removed the zero time slot hardware obturation of all PCM on the veneer to switch database transmitting single plate reset message by database;
2) main control module sends PCM to database and separates and close message, removes the time slot obturation of the inaccessible and switching network of the fault of this PCM to this PCM by database;
3) main control module can reach message to database transmission signalling point, is removed the signaling obturation and the far-end obturation of the relevant trunk group of this signalling point by database.
3, as claimed in claim 2 from the ring method, it is characterized in that: described veneer is will be from the Digital Trunk Board at the PCM place of encircling.
4, as claimed in claim 2 from the ring method, it is characterized in that: described PCM is will be from the PCM of ring.
5, as claimed in claim 2 from the ring method, it is characterized in that: described signalling point is will be from the trunk group corresponding signaling point at the PCM place of encircling.
6, as claimed in claim 1 from the ring method, it is characterized in that: handle according to No. seven different informed sources in the described step 4, may further comprise the steps: No. seven message of sending for Telephone User Part TUP or integrated service User Part ISUP, need to judge that whether the cic circuit identification code CIC of this Signaling System Number 7 message is less than set-point, if, then the cic circuit identification code CIC with these No. seven message adds an increment size, otherwise, the cic circuit identification code CIC of these No. seven message is deducted increment size; If No. seven message that SCCP SCCP sends, then with calling party address CGA and called subscriber address CDA exchange.
7, as claimed in claim 6 from the ring method, it is characterized in that: described set-point is middle CIC value.
8, as claimed in claim 1 from the ring method, it is characterized in that: whether judging whether in described step 3 and the step 6 will be to indicate for really judging from ring according to soft from ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011391669A CN1314231C (en) | 2001-12-19 | 2001-12-19 | Self circulation method for program control exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011391669A CN1314231C (en) | 2001-12-19 | 2001-12-19 | Self circulation method for program control exchanger |
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| CN1426196A CN1426196A (en) | 2003-06-25 |
| CN1314231C true CN1314231C (en) | 2007-05-02 |
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| CNB011391669A Expired - Fee Related CN1314231C (en) | 2001-12-19 | 2001-12-19 | Self circulation method for program control exchanger |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7502865B2 (en) * | 2003-12-18 | 2009-03-10 | Intel Corporation | Addresses assignment for adaptor interfaces |
| CN100372319C (en) * | 2005-12-31 | 2008-02-27 | 华为技术有限公司 | Method for detecting link physical self ring |
| CN105872861A (en) * | 2016-05-30 | 2016-08-17 | 河南昊方通信工程技术有限公司 | Program control exchanger self-loop method |
| CN111641184B (en) * | 2020-05-06 | 2022-04-08 | 国网辽宁省电力有限公司电力科学研究院 | Method for identifying self-loop of device and on-site device |
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| US4688208A (en) * | 1984-08-15 | 1987-08-18 | Fujitsu Limited | Time division exchange for carrying out a loop-back test |
| JPH09116937A (en) * | 1995-10-23 | 1997-05-02 | Oki Electric Ind Co Ltd | Line system interface for private branch exchange |
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