CN1204910A - SCCP control processing method for STP machine - Google Patents
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Abstract
A SCCP control and processing method of STP machine features that all functions of OMAP and TCAP and the management function of SCCP and MTP are integrated on the system management board (SYS) of STP machine for overall management, and the encode function of SCCP, the translation function of GT code, and the channel-encoding function of GT code table and MTP are distributed to multiple processing units (LPU) in signaling system. An HASH algorithm is used for the translation function of GT code. Its advantage is that the translation speed of GT code is increased and the forwarding delay of massage does not basically affected.
Description
The present invention relates to the Signaling System Number 7 net, relate more specifically to the control and treatment method of the Signaling Transfer Equipment (hereinafter to be referred as the STP machine) in it.
As everyone knows, the No.7 signaling network is mainly by signalling point SP as shown in Figure 1, and Signalling Transfer Point STP and signaling link are formed.Signalling Transfer Point STP is the signaling node that signaling message is transferred to another signaling link from a signaling link, the STP machine promptly is the Signaling Transfer Equipment in this signaling network, bear the forwards in the signaling network and message is re-addressed function, the time delay of speed of its processing messages and forwarding message has a significant impact the performance of signaling network, so it is one of equipment very important in the signaling network.As shown in Figure 2, comprehensive/self STP also comprises SCCP SCCP (following simple SCCP) except that Message Transfer Part MTP (hereinafter to be referred as MTP) is arranged, SCCP has expanded the business function of MTP, increased the addressing function that utilizes global title GT and SubSystem Number SSN, so as by the No.7 signaling network in telecommunications network exchange and special-purpose center between set up not have continue with towards the relevant signaling information relevant of the Network transfer circuit that continues and the message of other type with inverter circuit.In other words, STP has two levels to the processing and the forwarding of message, the one, on the MTP layer, another is on the SCCP layer, and SCCP handles and transmits message by translation GT sign indicating number, therefore, the GT sign indicating number capacity of STP machine and the translation speed of GT sign indicating number, and the forwarding time delay that last SCCP resume module message is produced is the important performance indexes of STP machine.Known to the applicant, existing STP machine product adopts the decentralized control of centralized control or routing section mostly and goes up on one point in to the translation set of GT sign indicating number, or finishes by dedicated translation equipment when design SCCP module.Though this can simplifying procedures to GT sign indicating number interpretative system handled and saving part hardware resource, its shortcoming is: obviously reduced the GT sign indicating number translation speed and the translation ability of STP machine, and increased the forwards time delay, had a strong impact on the performance of STP machine.
Therefore, one object of the present invention is the above-mentioned shortcoming that overcomes prior art provides a kind of GT of significantly improving sign indicating number translation speed and ability to shorten the control and treatment method of the STP machine of forwards time delay simultaneously greatly.
Another object of the present invention provides and a kind ofly guarantees the conforming method of STP system data based on the invention described above control and treatment method.
For achieving the above object, STP machine of the present invention adopts full dispersion treatment centralized control method to the control and treatment of SCCP module, is about to the routing part of SCCP module and GT sign indicating number interpretative function and is dispersed in each processing unit and controls simultaneously.Each processing unit all has identical GT sign indicating number translation table, and all adopts the HASH algorithm to realize the translation of GT sign indicating number.
The full dispersion treatment centralized control of SCCP of the present invention method also comprises the conforming method of STP system data that guarantees, whether it comprises with following dual mode judgment data consistent: the lint-long integer of a fixed length is set as version number for the version of expression data modification course, whether consistent with the sign version, revise each time, add 1 promptly for described version number; With generate check word by data, the twin check word is with the consistency of judgment data again.Inconsistent data is adopted different measure as the case may be: when finding that single or multiple LPU data are inconsistent, then start this link processing unit LPU and reset by terminal interface; When finding that system processing unit (SYS) plate and Back Administration Module (BAM) when data are inconsistent, then are loaded into backstage BAM with SYS plate data, by terminal data are carried out necessary modification then.
Because the above-mentioned full dispersion treatment centralized control structure of STP machine of the present invention makes when arbitrary functional processing module is received the message that contains the GT sign indicating number, can be directly to its routing with carry out the translation of GT sign indicating number, compare with the mode that before the GT sign indicating number was concentrated on a Translation Services Center, reduce the inner hop count of message and also need not to increase in addition interpreting equipment, obviously the translation ability of STP machine increasing and strengthen and do not influence substantially the propagation delay time of message with LPU, in addition, adopted the HASH algorithm to carry out the translation of GT sign indicating number, make the inventive method significantly improve the GT sign indicating number translation speed and the translation ability of STP machine, simultaneously shorten the forwards time delay greatly, thereby improved the performance of STP machine.A large amount of experimental datas show that the inventive method has reached following remarkable result: (1) GT sign indicating number translation speed greatly improves, and every link each second is the fastest translates 85 GT sign indicating numbers, and message-length is 80 bytes.(2) translation of GT sign indicating number does not have influence substantially to propagation delay time.(3) translation ability of a STP model machine of utilization the inventive method is up to 46080GT sign indicating number/second.
Above index is all considerably beyond the recent and long range requirement of GB institute standard.
Now be described with reference to the accompanying drawings the embodiment of the inventive method, in the accompanying drawing:
Fig. 1 is the No.7 nation-wide Network structure chart of China;
Fig. 2 is the structural representation of No.7 signalling system module in the STP machine shown in Figure 1;
Fig. 3 is the basic design schematic diagram of explanation SCCP module dispersion treatment centralized control method of the present invention;
Fig. 4 is the system configuration schematic diagram of an embodiment of explanation utilization the inventive method shown in Figure 3;
Fig. 5 is the process chart of SCCP message in the system shown in Figure 4;
Fig. 6 is the initialization flowchart in the explanation GT sign indicating number translation steps shown in Figure 5;
Fig. 7 is the flow chart that carries out the translation of GT sign indicating number after Fig. 6 flow process;
Fig. 8 is that system shown in Figure 4 is at the flow chart of utilization the present invention by versions of data check system data consistency method;
Process chart when Fig. 9 carries out the consistency desired result order that backstage BAM starts for system shown in Figure 4;
Process chart when Figure 10 carries out the consistency desired result order that NO.7 signaling line processing unit link-recovery incident starts for system shown in Figure 4;
Figure 11 is for being used for STP shown in Figure 4 system in an application examples schematic diagram of Modern Telecommunication net.
Referring to Fig. 2 to Fig. 4, as shown in Figure 2, No.7 signalling system software in the STP machine comprises Message Transfer Part MTP, SCCP SCCP, Transaction Capability Application Part TCAP TCAP, Operation and Maintenance part of O MAP with Signaling System Number 7, the function of each part mentioned above and the interface of intermodule, in the ITU-T suggestion, specified in more detail is arranged, so do not give unnecessary details at this, the No.7 signalling system software of STP machine of the present invention structurally also satisfies as above form, but as shown in Figure 3, adopt full dispersion treatment, centralized control: SCCP Management and control section 31 be arranged on switch or the STP machine have in the module of complete machine management role system handles plate SYS as shown in Figure 4, in other words has OMAP shown in Figure 2 on the SYS plate, the management function of the repertoire of TCAP module and SCCP and MTP; And SCCP routing function and GT code table and GT sign indicating number interpretative function are arranged in each disposable plates of Signaling System Number 7 or module, realize on the link processing line processing unit as shown in Figure 4, MTP on each disposable plates or the module has the ability that local SCCP message directly is transmitted to the last SCCP of this plate (or module), in other words, line processing unit has the routing function of SCCP and the routing function of GT sign indicating number interpretative function and MTP.
Fig. 4 schematically illustrates the system configuration of an embodiment of the full dispersion treatment centralized control of utilization the present invention method.As seen from the figure, the STP machine comprises inner high speed bus 40 in this example; Be connected on inside story conversion board PMC plate 43 and system handles plate (to call the SYS plate in the following text) 41 on the high-speed bus 40; The backstage 42 that links to each other with the SYS plate, and the link processing plate line processing unit 44 that links to each other with PMC plate 43.
Wherein, system handles plate SYS plate 41, the management of mainly being responsible for STP reaches and backstage (BAM) 42 communications; The 43 main inside stories of being responsible for the STP machine of forwards plate PMC plate are transmitted; Line processing unit 44 is main to be responsible for handling the message that transmits on the Signaling System Number 7 links 45 and it is carried out routing and addressing.
The routing part and GT sign indicating number translator unit-GT code table and the GT sign indicating number interpretative function that all have SCCP on every line processing unit 44.
The course of work of system shown in Figure 4 now is described in conjunction with Fig. 5.
When the No.7 signaling message enters line processing unit 44 by link 45, at first by this message of Signaling System Number 7 MTP resume module, if this message is the message of only transmitting through MTP, then MTP is to its routing again, and which bar Signaling System Number 7 link is the message of decision after handling will forward and the line processing unit at this link place number through, by PMC plate 43 and bus 40 this message is forwarded on this line processing unit afterwards, by MTP module on it message is forwarded in the respective link again and send; If this message is SCCP message, then MTP is given to this message the SCCP of this plate, enter flow process shown in Figure 5, promptly at S11, SCCP receives the message that MTP comes, routing (S12) through SCCP, then, need to judge whether translation GT sign indicating number, if need translation then to enter S14 at S13, after carrying out the translation of GT sign indicating number, issue the MTP module again, proceed to S15 afterwards, otherwise directly proceed to S15, again it is carried out routing and selects the link process by MTP, and by PMC plate and bus message is forwarded on the respective link and to send out (S16).
The translation process of following brief description GT sign indicating number.For further improving translation speed, the present invention has adopted the HASH algorithm.When this method just loads in program, to carry out initialization to the HASH concordance list of GT code table, this initialization flow process at step S51, begins initialization procedure as shown in Figure 6, step S52 begins circulation, then, get the GT sign indicating number, calculate the HASH value at S54 afterwards at S53, adopt following function calculation in this example: per 4 bytes of GT sign indicating number are got lint-long integer, back to these lint-long integers summations with maximum GT yardage delivery.After finishing, calculating enters step S55; Judge whether " conflict " takes place, flow process proceeds to S56 if do not clash then; The sequence number of this GT sign indicating number in the GT code table deposited in the relevant position of HASH concordance list, enter then S61 judged whether the GT sign indicating number if this judged result be "Yes" then flow process return S52, enter next circulation, repeat above all steps, if S61 be judged as "No" the time, then flow process proceeds to S62: end loop, and proceed to S63 and finish this initialization procedure.When step S55 judged result is "Yes", then flow process proceeds to S57, further judge: whether " conflict " district full? if the S57 judged result is a "No", then flow process proceeds to S60: enter S61 after depositing this GT sign indicating number sequence number in " conflict " district relevant position, when if the S57 judged result is "Yes", then flow process proceeds to S58, as error handling processing, and proceeds to S59 end initialization procedure.After the initialization of the HASH concordance list of having realized the above GT table, can translate the GT sign indicating number, this translation process is as shown in Figure 6.At first at S61, begin this flow process, then at step S62, the HASH value of the GT sign indicating number that calculating will be translated, this computing method and S54 shown in Figure 5 are identical, then judge at S64 whether this GT sign indicating number is the GT sign indicating number that will translate, then enter S65 if be judged as "Yes", show and translate successfully, and finish translation process in S66; If S64 is judged as "No", then flow process proceeds to S67, " searching the GT sign indicating number that will translate in the battleground ", then enters S68, judges whether to find the GT sign indicating number that will translate, then repeats above-mentioned steps S65, S66 if be judged as "Yes"; If S68 be judged as "No" then flow process proceed to S69, the expression translation failure also enters S70, finishes translation process.
Be understood that from the above description the STP system in this example is the structure of a centralized control, distributed treatment, its configuration data resides at the SYS plate, BAM plate and all line processing units, thereby how to guarantee the consistency of the system data on all plates to become the key issue that dispersion treatment centralized control method of the present invention must solve.
This paper states the front, the present invention guarantees that the conforming method of STP system data comprises whether judgment data is consistent in two ways, the first identifies version with version number, whether the versions of data of homologous ray is consistent come the data modification action of specified data disposable plates normal for the versions of data of judgment data disposable plates, be to identify version as version number in this example with one 32 lint-long integer, process by its check system data consistency is as shown in Figure 8: at first, when carrying out the data modification operation (S0) at every turn, by backstage BAM structure the corresponding command message, and in the versions of data of the BAM number insertion command messages, issue foreground SYS plate (S1) afterwards, after the SYS plate is received this message, compare version number with the data of preserving on the SYS plate, if the inconsistent step S7 that then changes, structure comparative result message also reports backstage BAM; If consistent, then the operation (S2) of fill order message requirement sends this command messages (S3) to each movable line processing unit afterwards.When each movable line processing unit was received this message, at first the comparing data version if inconsistent commentaries on classics S5 goes on foot, was constructed comparative result message and is also reported the SYS plate; If consistent, then the operation (S4) of fill order message requirement is changeed S5, reported result afterwards.The SYS plate is responsible for collecting the result (S6) that each line processing unit reports, and does corresponding analysis and statistics, when all line processing units all after the reported result message, just constructs the results messages on whole foreground and reports (S7).Backstage BAM receives the executing result message of returning on the foreground and does respective handling, as the display operation success or not, and (S8) such as reasons of operation failure, finish whole data modification operating process (S9) then.
Whether consistent another kind of mode is to generate check word by data to judgment data, contrasts check word then and comes the judgment data consistency, to avoid causing by byte check the huge consumption of system resource.The consistency desired result process of commands flow process that is started by BAM is shown among Fig. 9, referring now to Fig. 9 this flow process is described:
At first, regularly start the order of (or the user starts by terminal interface) data consistent check at S91 by backstage BAM, in command messages, carry " check word " of versions of data number and each tables of data of BAM, then at S92, control the comparison that relatively reaches versions of data (S94) that whole foreground comprises the data check word on SYS plate and the line processing unit by the dataman module of foreground SYS plate, then at S93, each line processing unit to activity sends corresponding command messages, when each line processing unit reports the SYS plate to result relatively (S95), dataman module then is responsible for collecting the reported result (S96) of each line processing unit, then make preliminary statistics and gather at S97, construct the results messages of whole Foreground Data consistency check simultaneously and report the backstage, then receive this results messages and handle accordingly on the S98 backstage.
By STP machine or the switch that the present invention realizes, must consider also when certain disposable plates (line processing unit) fault was resumed work again after a period of time, will guarantee that data are consistent with whole STP machine/switch on it that this process is referring to Figure 10.At first by " maintenance management " module on the SYS plate, detect certain line processing unit and return to operating state by malfunction, and give data management module (S101) on the SYS plate this situation report, construct the check word of each tables of data by data management module afterwards and obtain on the SYS plate versions of data number, and construct a command messages (S102) thus, and send on the line processing unit of just having resumed work.At step S103, data check word on the line processing unit and versions of data number are compared with data check word and versions of data on the SYS plate, afterwards comparative result are reported SYS plate (S104).The SYS plate is collected these line processing unit data results messages (S105) relatively, and do corresponding analysis (S106), if inconsistent on this line processing unit on data and the SYS plate then notified backstage BAM (S107), do respective handling (sending out the order of these line processing unit data of loading to SYS) by the backstage; If the comparative result unanimity, then the line processing unit of explanation recovery can operate as normal.
Referring to Figure 11, this illustrates an example that STP machine of the present invention is applied to the Modern Telecommunication net, and each mark is represented among the figure:
MSU wireless remote multi-user access unit; The PABX subscriber computer;
The 2B+DISDN terminal use; Home Location Registry place among the HLR GSM;
Service control point in the SCP intelligent network; Service management point in the SMP intelligent network;
Service creation environment in the SCE intelligent network; PSPDN public packet switched data net;
The RSU Remote Interface Unit; The RSA remote subscriber inserts; The RSM remote subscriber module;
Below summarize the operating position of STP machine
Be example now with certain IN service in the intelligent network.Suppose that certain user under the SSP will carry out " Account Card Calling ", when SSP checks out that this calling is intelligent call, just analyze its class of service and Business Nature, and determine the position of relative service control point (SCP), SSP is by the Signaling System Number 7 net afterwards, get in touch through one or more STP machines and SCP foundation possibly, and inquire about the further operation of this IN service.In the process of whole inquiry and visit, the STP machine plays a part to transmit message and guarantees to provide reliable signaling link, therefore the STP machine plays key effect in intelligent network is used, and the signaling network of being made up of it and No. seven links is intelligent network most important physical platform in implementation procedure.
Though more than in conjunction with the embodiments the full dispersion treatment centralized control of the present invention method is described, but those skilled in the art may make all conspicuous modification according to above design, for example can also following manner calculate the HASH value:, ask itself and number delivery again every 2 byte round numbers; Or after 2 byte round numbers, to each integer square get again and, ask mould afterwards, or " every the position " round numbers delivery etc. of suing for peace again.So protection range of the present invention is determined by appended claims.
Claims (7)
1. the control and treatment method of the Signaling System 7(SS-7) of a STP machine, described Signaling System 7(SS-7) comprises Message Transfer Part MTP, SCCP SCCP, the Operation and Maintenance part of O MAP of Transaction Capability Application Part TCAP TCAP and described Signaling System 7(SS-7), described control and treatment method is characterised in that: with described Operation and Maintenance part of O MAP, the management function of the repertoire of Transaction Capability Application Part TCAP TCAP and SCCP SCCP and Message Transfer Part MTP is concentrated and is arranged in the complete machine administrative unit (SYS41) that has the complete machine management role on described STP machine or the switch, and with routing function and GT sign indicating number interpretative function and the GT code table of SCCP, the routing function of MTP is arranged on a plurality of processing units (LPU44) of Signaling System Number 7 entirely dispersedly.
2. the control and treatment method of Signaling System 7(SS-7) as claimed in claim 1, it is characterized in that: the SCCP Message Processing that described a plurality of processing units (44) carry out may further comprise the steps:
1) reception is from the SCCP message of MTP;
2) this SCCP message is carried out routing;
3) judge whether to carry out the translation of GT sign indicating number,
When being judged as "Yes", then carrying out step (4), otherwise carry out step (5)
4) translation GT sign indicating number;
5) proceed message routing;
6) with the MTP of forwards to this unit.
3. control and treatment method as claimed in claim 2 is characterized in that: described translation GT sign indicating number step (4) has adopted the HASH algorithm.
4. control and treatment method as claimed in claim 3 is characterized in that: adopted one of following four kinds of functions in the initialization flow process of described HASH algorithm, calculated the HASH value:
A: per 4 bytes of GT sign indicating number are got lint-long integer, to using maximum GT yardage delivery again after these lint-long integer summations;
B: to the round numbers of GT sign indicating number, ask itself and number delivery again every 2 bytes;
C: to the round numbers of GT sign indicating number, mould square is got and asked afterwards to each integer again every 2 bytes;
D: every 1 to the round numbers of GT sign indicating number, ask itself and, delivery again.
5. control and treatment method as claimed in claim 1, it is characterized in that: also comprise the consistency process that guarantees system data, whether this process comprises with following dual mode judgment data consistent again: first mode is to identify version with version number when revising data, and whether the versions of data of homologous ray is consistent come the data modification action of specified data processing unit normal with the versions of data of judgment data processing unit; Second mode is when starting the consistency desired result order, by data are generated check word, contrasts check word then and comes the judgment data consistency.
6. control and treatment method as claimed in claim 5 is characterized in that: second mode of described assurance system data consistency process may further comprise the steps:
A: by Back Administration Module (BAM) regularly startups/user start data consistent check order, and in this order, comprising by the described check word of each tables of data of Back Administration Module calculating and described versions of data number by terminal interface;
B: the data management module among the described complete machine administrative unit SYS, control whole foreground, comprise the comparison that relatively reaches versions of data of the data check word on described SYS unit and the described processing unit LPU;
C: when each described processing unit reports result relatively described complete machine administrative unit SYS, described data management module is responsible for collecting the reported result of each processing unit, and do rough estimates and gather, construct the results messages of whole Foreground Data consistency check and report Back Administration Module;
D: Back Administration Module receives the results messages that the foreground is returned, and handles accordingly.
7. control and treatment method as claimed in claim 5 is characterized in that: described first mode of described assurance data consistency may further comprise the steps.
-beginning data modification;
-Back Administration Module is revised command messages with number insertion of its current version;
-complete machine administrative unit SYS and each processing unit LPU be first audit by comparison versions of data before executable operations, carries out assigned operation when consistent, the results messages (comprising " mistake " message when version is inconsistent) that structure is local, and report the complete machine administrative unit;
-complete machine administrative unit is collected the results messages that each processing unit is beamed back, and constructs the results messages on whole foreground and reports Back Administration Module;
-Back Administration Module receives the results messages of returning on the foreground and does respective handling.
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| CN 97108976 CN1097931C (en) | 1997-07-04 | 1997-07-04 | SCCP control processing method for STP machine |
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| CN 97108976 CN1097931C (en) | 1997-07-04 | 1997-07-04 | SCCP control processing method for STP machine |
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| CN1097931C CN1097931C (en) | 2003-01-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426813C (en) * | 2001-03-06 | 2008-10-15 | 诺基亚西门子通信有限责任两合公司 | Method for transmitting signaling message in ss#7 network |
| CN100450214C (en) * | 2006-09-30 | 2009-01-07 | 华为技术有限公司 | Message transmission method, system and device |
| CN100455033C (en) * | 2003-12-19 | 2009-01-21 | 上海贝尔阿尔卡特股份有限公司 | A signaling message transfer apparatus, and method of receiving/transmitting signaling message thereof |
| CN1706204B (en) * | 2002-06-14 | 2010-05-26 | 国际商业机器公司 | Service logic context cache for signaling events |
| CN105790995A (en) * | 2014-12-26 | 2016-07-20 | 中国移动通信集团辽宁有限公司 | Automatic business switching method and device |
| CN109739804A (en) * | 2018-12-19 | 2019-05-10 | 卡斯柯信号有限公司 | Multiplying 2 based on 2 takes the security platform of 2 frameworks to input consistency comparison method |
-
1997
- 1997-07-04 CN CN 97108976 patent/CN1097931C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426813C (en) * | 2001-03-06 | 2008-10-15 | 诺基亚西门子通信有限责任两合公司 | Method for transmitting signaling message in ss#7 network |
| CN1706204B (en) * | 2002-06-14 | 2010-05-26 | 国际商业机器公司 | Service logic context cache for signaling events |
| CN100455033C (en) * | 2003-12-19 | 2009-01-21 | 上海贝尔阿尔卡特股份有限公司 | A signaling message transfer apparatus, and method of receiving/transmitting signaling message thereof |
| CN100450214C (en) * | 2006-09-30 | 2009-01-07 | 华为技术有限公司 | Message transmission method, system and device |
| CN105790995A (en) * | 2014-12-26 | 2016-07-20 | 中国移动通信集团辽宁有限公司 | Automatic business switching method and device |
| CN109739804A (en) * | 2018-12-19 | 2019-05-10 | 卡斯柯信号有限公司 | Multiplying 2 based on 2 takes the security platform of 2 frameworks to input consistency comparison method |
| CN109739804B (en) * | 2018-12-19 | 2022-09-23 | 卡斯柯信号有限公司 | Security platform input consistency comparison method based on 2-by-2-out-of-2 architecture |
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| Publication number | Publication date |
|---|---|
| CN1097931C (en) | 2003-01-01 |
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