CN100456750C - Method for processing message of isomerous No. seven signaling network - Google Patents
Method for processing message of isomerous No. seven signaling network Download PDFInfo
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- CN100456750C CN100456750C CNB2004101017612A CN200410101761A CN100456750C CN 100456750 C CN100456750 C CN 100456750C CN B2004101017612 A CNB2004101017612 A CN B2004101017612A CN 200410101761 A CN200410101761 A CN 200410101761A CN 100456750 C CN100456750 C CN 100456750C
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Abstract
The present invention relates to a processing method for an isomerous No. seven signaling network. When the network equipment having direct communication with the isomerous network receives a piece of message from the isomerous network or a piece of message prepares to be sent to the isomerous network, the present invention executes the following operation: a. the network equipment converts network indication values in the message into effective network indication values which can be processed by itself or into effective network indication values which can be processed by the isomerous network; B. the network equipment sends the converted message to self upper-layer users after decoding or sends to destination signaling points after recombination. The present invention carries out processing of NI conversion of the message of the network equipment having direct communication with the isomerous network, the occupied network resources are reduced, the complexity degree of net formation is reduced, and meanwhile, the cost of network communication is saved.
Description
Technical field
The present invention relates to the message transferring technology of No.7 nation-wide Network, relate in particular to a kind of processing method of isomery No.7 nation-wide Network message.
Background technology
In communication system, to divide according to the relation between drive access and the speech channel, signaling can be divided into channel associated signalling and common channel signalling.Wherein channel associated signalling is to use the path that transmits speech information to transmit the various signalings relevant with this speech channel; And common channel signalling is to separate with the path that transmits speech on the path of transmission signaling, promptly the various signalings in each telephone connection path is concentrated on the two-way signaling link and transmits.Common channel signalling system at present commonly used comprises No. 6 signaling systems (SS6) and Signaling System 7(SS-7) (SS7), and wherein SS6 is applied to simulate net and SS7 is applied to digital network.SS7 has characteristics such as transmission speed is fast, signal volume is big, reliability height, signaling link have shake hands, ability such as check, error control, congested control, redundancy backup, not only can transmit the signal relevant with circuit connection, also can transmit the various signaling informations that have nothing to do with circuit connection, be applicable to wireline communication network and cordless communication network.
The SS7 signaling network is the data network that is used to transmit communication information, and it is made of with the link that is connected signalling point many various signalling points (SP).So-called signalling point is the node that depends on the signaling network on the network equipment, for example: the switch in the wired communication system, the attaching position register in the wireless communication system (HLR) and short message service center (SMC) etc.From the angle of information receiving and transmitting, the signalling point that initiates a message is the Original Signaling Point of this message, and the signalling point of reception message is the destination signaling point of this message.Say that from functional perspective signalling point comprises non-Signalling Transfer Point and Signaling Transfer Point.Generation or destination node that wherein non-Signalling Transfer Point is a signaling message are responsible for making a call or receiving incoming call, and the speech exchange system conversion of signals is become SS7 message; And STP is used to finish the function of forwards, checks the message of being sent by non-Signalling Transfer Point, by network the message that comes from other signalling points is arrived destination signaling point then.Connect physical link between each signalling point signaling link of being known as, signaling link can be transparent digital channel, also can be high-quality analog channel; The set that connects the signaling link of two signalling points is called signaling link set; And signaling message from the Original Signaling Point to the destination signaling point the path of process be called signalling route.
SS7 is divided into Message Transfer Part (MTP) and User Part (UP) from structure.Wherein MTP is responsible for accurate transmission signaling message between each signalling point; And UP is responsible for processing signaling message.MTP forms by following three grades:
1. signaling data link level: be called MTP1 again, this grade stipulated the physical electrical characteristic and the cut-in method of signaling link, the transmitted in both directions passage of full duplex is provided, and the data channel identical by a pair of transmission rate, that transmission direction is opposite is formed, and finishes the transparent transmission of binary bit stream.
2. signaling link level: be called MTP2 again, this grade divided the signaling unit of position different length with the bit stream of transparent transmission among the MTP1, and by error detection occurs and retransmit and proofread and correct the correct transmission that guarantees signaling unit.
3. signaling network functions level: be called MTP3 again, comprise that signaling message handles and signaling network management two parts.The function that signaling message is handled is according to the address message in the Message Signal Unit, signaling unit is delivered to the relative users part of user's appointment; The function of signaling network management is that the working condition to each signalling route and signaling link monitors, when signaling link and signalling route break down, signaling network management is on the basis of known signaling network status data and information, the structure of control messages route and signaling network, finish reconfiguring of signaling network, thereby recover normal message transmission capacity.
Q.704, the agreement ITU-T of relevant MTP stipulates, the network indication (NI) of carrying in the SS7 message is used for identifying the residing network configuration of Original Signaling Point of this message, and NI has 0,1,2,3 four kind of effective value.Each signalling point all uses signaling point code to identify its network address in addition, and signaling point code generally comprises 14 and 24 two kinds of structures.
For the network that adopts 24 bit signaling points coding, the form of its message is: main signaling district coding (8)+minute signaling district coding (8)+concrete signaling point code (8), wherein main signaling district coding is represented the province or the city at signalling point place, the grade of dividing signaling district coding represent signalling point place exchange specifically comprises information such as the Original Signaling Point of this message and target signalling point in the signaling point code; For the network that adopts 14 bit signaling points coding, its message format is: main signaling district coding (3)+minute signaling district coding (8)+concrete signaling point code (3), the each several part implication is identical with appropriate section during 24 bit signaling points are encoded.
Because NI and signaling point code are selected as the case may be and voluntarily by each country or operator, so the identical network of NI, its signalling point structure can be identical or different; The network that NI is different, its signalling point structure also identical or different situations can occur.In the SS7 signaling network, NI is identical and network that signalling point is different b referred to as heterogeneous network.
According to the agreement regulation, in the identical network of NI, having only can direct communication between the identical signalling point of signaling point code structure.For example, when the NI of the network using of two different operators is 2 and signaling point code is respectively 14 bit signaling points and 24 bit signalings point, therefore the signaling point code structure difference because NI is identical lays respectively at the directly intercommunication of signalling point in above-mentioned two networks.
Suppose that network equipment A, B are in respectively in the network of NI=2 and NI=3, and network equipment C is in simultaneously in two kinds of networks of NI=2 and NI=3.The network maintenance staff is according to the signalling point structure of network equipment A and B, in network equipment C, be provided with different N I corresponding signaling point coded system in advance, suppose promptly on the network equipment A that being is 24 bit signaling points codings on 14 bit signaling points coding, the network equipment B, then is provided with NI=2 14 bit signaling points coding, NI=3 is provided with 24 bit signaling points coding corresponding to network equipment B corresponding to network equipment A among the network equipment C.Because network equipment C is consistent with network equipment A and network equipment B simultaneously, so network equipment C can directly communicate with network equipment A and network equipment B respectively.In addition, because the existence of network equipment C, network equipment A and network equipment B can transmit message mutually, and then the intercommunication between the network of the network of realization NI=2 and NI=3.
Particularly, the message between network equipment C and the network equipment A adopts NI=2,14 bit signaling dot structures, and the message between network equipment C and the network equipment A adopts NI=3,24 bit signaling dot structures; And when between network equipment A and the network equipment B during interaction message, network equipment C is that network equipment A and network equipment B transmit message.
Sending SCCP (SCCP) message with network equipment A to network equipment B is example, and detailed process is as follows:
Network equipment C receives the SCCP message that comes from network equipment A, then at first obtains NI value entrained in this message, and decodes according to this NI value corresponding signaling point coding structure that sets in advance; Then, network equipment C obtains global title (GT) from this message, and after carrying out the GT translation, the destination signaling point of determining this message is the signalling point on the network equipment B; Network equipment C re-constructs SCCP message, and sends to network equipment B according to the signaling point code on the NI value of network equipment B and the pairing network equipment C of this NI value that sets in advance.
Similarly, when network equipment B when network equipment A sends message, at first according to the pairing 24 bit signaling points of NI=3 coding this message is decoded, then reassemble into the message that 14 bit signaling points that device A can discern are encoded again, and send to network equipment A by network equipment C.
More than be the NI difference, the normal communication process of the network that the signalling point structure is different, but when the identical and signalling point structure of NI not simultaneously yet, just can't handle according to the normal handling flow process.In order to make that to be in NI identical and the network equipment in the heterogeneous network that the signaling point code structure is different can intercom mutually, present way is: utilize the message that gateway will transmit between heterogeneous network equipment to handle, convert the message format that purpose network equipment place network can be discerned to, the message after will changing again sends.As shown in Figure 1, network equipment A is in the network of NI=2, has 24 bit signaling points coding, and network equipment C also is in the network of NI=2, but but having 14 bit signaling points encodes, so network equipment A and network equipment C are in the heterogeneous network.Can intercommunication in order to make between network equipment A and the network equipment C, between A and C, increase a gateway, as the transfer of message.The kind of gateway is more at present, and implementation is had nothing in common with each other, and is that example describes with a kind of gateway only herein.As shown in Figure 2, finish the gateway that is in network equipment A and network equipment C intercommunication in the heterogeneous network, at least comprise processing unit of communicating by letter with network equipment A and the processing unit of communicating by letter with network equipment C, the message conversion of being responsible for coming from network equipment A and network equipment C respectively becomes the form that destination signaling point can discern and sends.As shown in Figure 3, when message when network equipment A mails to network equipment C, the method for gateway processes heterogeneous network message may further comprise the steps:
The processing unit of communicating by letter with network equipment A in step 301. gateway receives that network equipment A mails to the message of network equipment C.
When network equipment A communicates by letter with network equipment C, because it is in 24 the network that network equipment A is in NI=2, signaling point code structure, and network equipment C is in NI=2, signaling point code structure is that promptly both are the network equipments in the heterogeneous network, can't direct communication in 14 the network.Therefore send to the message of network equipment C by network equipment A, be actually and sent to the gateway that is between network equipment A and the network equipment C, and receive this message by the processing unit of communicating by letter with network equipment A in the gateway.
The processing unit of communicating by letter with network equipment A in step 302～303. gateways carries out data analysis and decoding processing to the message of receiving; Then, the message after handling is sent to the processing unit of communicating by letter with network equipment C in the gateway.
The processing unit of communicating by letter with network equipment A at first carries out data analysis and decoding processing to the message that comes from network equipment A herein, tells the concrete implication of each several part in the 24 bit signaling points coding, and is converted into the form with byte representation; Then, the processing unit of communicating by letter with network equipment A will send to the processing unit of communicating by letter with network equipment C in self place gateway with the message that the byte form is represented.
The form that message conversion after the processing unit of communicating by letter with network equipment C in step 304. gateway will be handled can be discerned for network equipment C sends to network equipment C then.
The processing unit of communicating by letter with network equipment C is converted into 14 bit signaling points coding, so that network equipment C can discern at first according to the content of the message of representing with the byte form herein; Then, the message that is converted to 14 bit signaling points coding is sent to network equipment C.
After network equipment C receives the 14 bit signaling point coded messages that come from gateway,, send it to the upper-layer user of network equipment C or the signalling point on other network equipment according to the particular content of this message.
The shortcoming of existing isomery No.7 nation-wide Network message treatment method is:
Adopt gateway device that the message of transmitting between the isomery No.7 nation-wide Network is changed, increased the complexity of networking; And, more Internet resources have therefore been taken because gateway device need take an independently signaling point code.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of processing method of isomery No.7 nation-wide Network message, reduce the Internet resources that take, the complexity that reduces networking.
For achieving the above object, the invention provides a kind of processing method of isomery No.7 nation-wide Network message, in the network equipment, be provided with in advance and comprise the conversion rule information that contains between the active block indication that active block indication that the network equipment self can handle and heterogeneous network can handle, receive a piece of news with the network equipment of heterogeneous network direct communication from heterogeneous network, perhaps prepare when heterogeneous network sends a piece of news, carry out following operation:
A. the described network equipment converts the indication of the network in this message numerical value to self can handle active block indication numerical value according to the conversion rule information that is applicable to this message, perhaps converts the active block indication numerical value that described heterogeneous network can be handled to;
B. send to self upper-layer user behind the source codec after the described network equipment will be changed, perhaps send to destination signaling point after the reorganization.
The active block indication that the described network equipment can be handled self is made as the source network indication, the active block indication that described heterogeneous network can be handled is made as the indication of purpose network, then steps A is described converts the network in this message indication numerical value to active block indication numerical value that the described network equipment can be handled self, and the method that perhaps converts the active block indication numerical value that heterogeneous network can handle to is:
If the described network equipment receives message, then the network indication with this message is converted to the source network indication according to the purpose network indication of this conversion rule information from the conversion mapping table;
If the described network equipment is ready for sending message, then the network indication with this message is converted to the indication of purpose network according to the source network indication of this conversion rule information from the conversion mapping table.
The described network equipment was carried out following operation before carrying out described steps A:
A 1. checks the conversion mapping table, obtains first transformation rule;
A2. judge whether this transformation rule is applicable to this message; If be suitable for, then according to this transformation rule execution in step A, otherwise, execution in step A3;
A3. judge whether this transformation rule is the tail record of changing in the mapping table; If, then finish this conversion process flow process, otherwise, turn to next the bar transformation rule in the conversion mapping table, return execution in step A2 then.
Described transformation rule further comprises: change over switch, show the constrained type of transmission of messages mode and show the constraint of transmission of messages specifying information.
The described network equipment judges whether described transformation rule is applicable to that the method for this message is: judge whether described change over switch is opened, if open, then judge described constrained type and constraint whether with this match messages, if, then this transformation rule is applicable to this message, otherwise this transformation rule is not suitable for this message; If described change over switch is closed, then this transformation rule is not suitable for this message.
Described constrained type comprises at least: link set conversion, link conversion or route conversion.
If constrained type is the link set conversion, then described being constrained to: indicate the constraint of answering transforming message place link set;
If constrained type is the link conversion, then described being constrained to: indicate the constraint of answering transforming message place link;
If constrained type is the route conversion, then described being constrained to: indicate the constraint of answering transforming message place route.
Use the present invention, the NI value that will be ready for sending or receive in the message by the network equipment with the heterogeneous network direct communication converts other effective numerical value to, has realized communicating by letter of same equipment and heterogeneous network.Particularly, the present invention has following beneficial effect:
1. the present invention is by pair carrying out the processing that interactive messages is changed NI with heterogeneous network with the network equipment of heterogeneous network direct communication, signaling message is carried out transfer handle and need not gateway, reduced the Internet resources that take, reduced the complexity of networking, saved the cost of network service simultaneously;
2. the present invention has saved the processing of gateway to signaling message, has reduced the processing time, has shortened the mutual time between the signalling point;
3. the present invention during message transfer, need not the participation of gateway between the isomery No.7 nation-wide Network, has reduced the number of signalling point in the network, is convenient to Network Management and maintenance.
Description of drawings
Fig. 1 is existing isomery No.7 nation-wide Network structure chart.
Fig. 2 is existing gateway structural representation.
Fig. 3 is existing isomery No.7 nation-wide Network message treatment method flow chart.
Fig. 4 is an isomery No.7 nation-wide Network structure chart of the present invention.
The flow chart of the isomery No.7 nation-wide Network message treatment method that Fig. 5 adopts when being ready for sending message for network equipment C in the embodiment of the invention.
Fig. 6 carries out the flow chart of NI conversion process to message for network equipment C in the embodiment of the invention.
Fig. 7 is the flow chart of isomery No.7 nation-wide Network message treatment method when network equipment C receives message in the embodiment of the invention.
Fig. 8 is for using the network diagram of isomery No.7 nation-wide Network message treatment method of the present invention.
Embodiment
For making purpose of the present invention, technical scheme clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
The present invention is a kind of processing method of isomery No.7 nation-wide Network message, its basic thought is: identical with NI and heterogeneous networks that the signalling point structure is different need the network equipment of direct communication to receive a piece of news from heterogeneous network, perhaps prepare when heterogeneous network sends a piece of news, after being converted the NI in the message to self can handle effective NI or converted to effective NI that heterogeneous network can handle by this network equipment, the reorganization of again message being decoded or encoded is handled.
Present embodiment adopts isomery No.7 nation-wide Network shown in Figure 4, suppose that it is in 24 the network that network equipment A is in NI=2, signaling point code structure, and because the network interworking that the NI value of network equipment C by transforming message realizes encoding with NI=2,24 bit signaling points, the network interworking that can encode with NI=2,14 bit signaling points, promptly two kinds of networks think that all signalling point C is in the self networks, and then network equipment C is in two kinds of networks simultaneously.In the present embodiment, network equipment A is identical with the protocol type that network equipment C uses, and promptly both all use International Telecommunication Union's agreement or national standard agreement, for example No. 7 gb specifications of China, American National Standards Institute (ANSI) agreement etc.
As shown in Figure 5, when network equipment C preparation other network equipment in heterogeneous network sent message, present embodiment may further comprise the steps the processing method of isomery No.7 nation-wide Network message:
In this step, network equipment C is ready for sending a piece of news, and the destination signaling point of this message is in the network of NI=2,14 bit signaling points coding or is in the network that NI=2,24 bit signaling points encode.
For with two networks in signalling point communicate, network equipment C need be mapped to one of above-mentioned network on the local active block, for example: is the network mapping of NI=2,14 bit signaling points coding the network that NI=3,14 bit signaling points are encoded; Network equipment C goes up and NI=2 like this, during the network service of 14 bit signaling points coding, thinks and NI=3 that the network that 14 bit signaling points are encoded communicates.In order to carry out the conversion process of NI value, present embodiment is provided with the conversion mapping table that comprises transformation rule in advance in the MTP3/M3UA of network equipment C (MTP3-User Adaptation Layer).The theing contents are as follows of every transformation rule in the conversion mapping table:
1. change over switch: be the developer for the modification that reduces the conversion mapping table, improve this conversion mapping table degree of flexibility, according to the switching value that the application scenario of reality is provided with, its role is to show whether this transformation rule works.When change over switch was " true (TRUE) ", change over switch was opened, and this transformation rule works; When change over switch was " false (FALSE) ", change over switch was closed, and this transformation rule is inoperative.
2. constrained type and constraint: the present invention has defined three kinds of constrained types altogether: link conversion, link set conversion and route conversion, wherein link conversion expression will be stipulated all conversions of NI value of signaling message on the signaling link, the link set conversion represents the signaling message on concentrated all links of regulation signaling link is changed the operation of NI value, and route conversion expression is changed all through the NI value of the signaling message of regulation signalling route; The constraint portions of the specifying information of above-mentioned signaling link, signaling link set and signalling route in the conversion mapping table stipulated.
3. source NI: show the signaling message that this transformation rule is suitable for carry out the NI conversion the network equipment self the NI value that can discern.
4. purpose NI: show the signaling message that this rule is suitable for the network equipment the NI value that can discern.
The conversion mapping table that example is as shown in table 1 comprises three transformation rules in this table, all include contents such as change over switch, constrained type, constraint, source NI and purpose NI in every transformation rule.
| Transformation rule | Change over switch | Constrained type | Constraint | Source NI | Purpose NI |
| 1 | FALSE | The link conversion | No. 1 link of link set 1 | 3 | 2 |
| 2 | TRUE | The link set conversion | No. 1 link set | 3 | 2 |
| 3 | TRUE | The route conversion | No. 3 routes | 3 | 2 |
Table 1
In this step, constrained type and constraint in this message and the transformation rule 2 are complementary, so network equipment C changes the NI value in the message according to the transformation rule table, the NI value in this message is converted to 3 by 2, so that the purpose network equipment can be discerned this message.
Send to destination signaling point after the message reorganization of step 503. network equipment C after with conversion process.
In this step, network equipment C is reassembled into the signaling point code structure that its purpose network equipment can be discerned according to the NI value after changing with this message, and then this message is sent to its purpose network equipment.Wherein the method and the existing method of network equipment C reorganization message signaling point code are identical.
Wherein, the process that network equipment C carries out the NI conversion process to this message in the step 502 as shown in Figure 6, this process may further comprise the steps:
Step 601. network equipment C checks the conversion mapping table, obtains first transformation rule.
In this step, network equipment C reads the conversion mapping table, obtains first transformation rule in the conversion mapping table.With the conversion mapping table shown in the table 1 is example, and network equipment C obtains in this step that change over switch is that FALSE, constrained type are that link conversion, No. 1 link, the source NI that is constrained to No. 1 link set are 2, purpose NI is 3 transformation rule.
Step 602. network equipment C judges whether the change over switch in the transformation rule is opened, if then execution in step 603; Otherwise, execution in step 605.
In this step, network equipment C reads the state of change over switch in the transformation rule, if the value of change over switch is TRUE, the expression change over switch is opened, and then signalling point C can continue to read the other parts in this transformation rule; If the value of change over switch is FALSE, the expression change over switch is closed, and this transformation rule is inoperative, so network equipment C need not to read the content of these other parts of transformation rule again.For article one transformation rule in the table 1, because change over switch is a closed condition, so network equipment C transfers execution in step 605.
When the network maintenance staff think certain bar transformation rule do not need the recurrence do the time spent, then directly this regular switch is set to FALSE, thereby no longer carries out subsequent operation according to this rule.
Step 603. network equipment C judge constrained type in the transformation rule and constraint whether with this match messages, if then execution in step 604; Otherwise, execution in step 605.
In this step, network equipment C at first reads the constrained type in the transformation rule and the particular content of constraint portions, judges then whether above-mentioned two parts and current message mate.For example: the constrained type of transformation rule 2 is link set conversions in the table 1, corresponding constraint is No. 1 link set, if and current message is to come from link set No. 2, then because the specified link set of current message and constraint portions is inequality, think that therefore constrained type in the transformation rule and constraint and this message do not match.
Step 604. network equipment C changes this message according to source NI in the transformation rule and purpose NI, then finishes the NI handling process.
In this step, if the change over switch in the transformation rule is opened, constrained type and constraint and signaling message are complementary, then network equipment C is converted to purpose NI with the NI value of this message from source NI.
Step 605～606. network equipment C judge whether this transformation rule is the tail record of changing in the mapping table, if then finish NI conversion process flow process; Otherwise, turn to next the bar transformation rule in the conversion mapping table, return execution in step 602 then.
Under the situation that the change over switch in the transformation rule is closed or constrained type and constraint are not complementary with this message, network equipment C judges at first whether this transformation rule is the last item record of changing in the mapping table, promptly judges whether also have other transformation rule of not inquired about in the conversion mapping table.If this transformation rule is the tail record in changing mapping table, show that the transformation rule in the conversion mapping table all is not suitable for this message, promptly the destination signaling point of this message can be discerned signaling point code wherein, so NI need not conversion, then finishes M conversion process flow process; If the tail record in this transformation rule step conversion mapping table, then signalling point C turns to next bar transformation rule, and returns execution in step 602, rejudges whether to have the transformation rule that is applicable to this message.
With the conversion mapping table shown in the table 1 is example, and this moment, network equipment C judged whether current transformation rule is the 3rd transformation rule, if then finish the NI handling process; Otherwise, next bar transformation rule in the GO TO table 1 then.
By above-mentioned steps 601 to step 606, network equipment C has finished the NI conversion process to message in the step 501, this processing has two kinds of results: there is the transformation rule that is applicable to this message in a kind of result in the conversion mapping table, then network equipment C changes the NI value of this message according to the content of conversion mapping table; There is not the transformation rule that is applicable to this message in another kind of result in the conversion mapping table, promptly NI value need not to change, and then the NI value that still keeps in this message of network equipment C is constant.
Use the idiographic flow of isomery No.7 nation-wide Network message treatment method when more than being ready for sending a piece of news for signalling point C.As shown in Figure 7, when network equipment C received a piece of news, present embodiment may further comprise the steps the processing method of isomery No.7 nation-wide Network message:
In this step, network equipment C receives a piece of news, and this message comes from the signalling point that is in NI=2, the 14 bit signaling point coding networks or from the signalling point that is in NI=2, the 24 bit signaling point coding networks.
Handle for the inverse conversion of carrying out the NI value, present embodiment sets in advance the conversion mapping table that comprises transformation rule in the MTP3/M3UA of signalling point C (MTP3-User Adaptation Layer).The content and the conversion mapping table in the step 602 of conversion mapping table are identical.
In this step, process and step 601 shown in Figure 6 that network equipment C carries out the NI conversion process to this message are basic identical to step 606, just in this step the purpose NI of NI value from transformation rule of message are converted to source NI.
Send to the upper-layer user of self behind the source codec after step 703. network equipment C handles inverse conversion.
In this step, network equipment C decodes this message according to the NI value after changing according to the corresponding signaling point coding, and then this message is sent to the upper-layer user of network equipment C.It is identical that wherein the NI value of network equipment C after according to conversion carried out the method and the existing method of source codec.
In order to make method of the present invention more directly perceived, be illustrated below.As shown in Figure 8, network equipment C is in the network of NI=2,24 bit signaling points coding and the network that NI=2,14 bit signaling points are encoded, and it and NI=2, signaling point code are respectively 14,24,14 signalling point 1, signalling point 2 and signalling point 3 direct communications.Be No. 1 link set, No. 1 route between network equipment C and the signalling point 1, wherein comprise No. 1 link and No. 2 links in No. 1 link set; Be No. 2 link set, No. 2 routes between network equipment C and the signalling point 2, wherein only comprise 1 link in No. 2 link set; Be No. 3 link set, No. 3 routes between network equipment C and the signalling point 3, wherein only comprise 1 link in No. 3 link set.Suppose that the conversion mapping table among the network equipment C is the content of table 1.
When network equipment C receives a piece of news that comes from signalling point 1 from No. 1 link No. 1 link set, the NI=2 of this message, signaling point code are 14, and then network equipment C at first checks the conversion mapping table, obtains transformation rule 1.Because the change over switch in the transformation rule 1 is closed, so this transformation rule is inoperative, then network equipment C turns to transformation rule 2.Change over switch in the transformation rule 2 is an open mode, and network equipment C reexamines constrained type and constraint portions.Because the constrained type in the transformation rule 2 is the link set conversion, is constrained to link set No. 1, and this message comes from link set No. 1, constrained type and constraint in this message and the transformation rule 2 are complementary, so network equipment C is converted to 3 with the NI in this message by 2.Because network equipment C has found the transformation rule that is applicable to this message in conversion in the mapping table, and has carried out the conversion of NI, need not to reexamine other transformation rule, so network equipment C will change the upper-layer user who sends to self behind the source codec of NI value.
When No. 1 link of network equipment C from No. 2 link set receives when coming from signalling point 2 a piece of news, the NI=2 of this message, signaling point code are 24.When using method of the present invention, network equipment C at first checks the conversion mapping table, obtains transformation rule 1.Because the change over switch in the transformation rule 1 is closed, so this transformation rule is inoperative, then network equipment C turns to transformation rule 2.Change over switch in the transformation rule 2 is an open mode, and network equipment C reexamines constrained type and constraint portions.Because the constrained type in the transformation rule 2 is the link set conversion, is constrained to link set No. 1, and this message comes from link set No. 2, then constrained type in this message and the transformation rule 2 and constraint are not complementary, so network equipment C turns to transformation rule 3.Change over switch in the transformation rule 3 for open, constrained type is route conversion, be constrained to route No. 3 because this message comes from route No. 2, so transformation rule 3 is not suitable for this message yet.Network equipment C is checked through transformation rule 3 for the tail record in the conversion mapping table, so the NI value of this message is not changed.Herein as can be seen, there is not the transformation rule that is applicable to this message in conversion in the mapping table, and promptly network equipment C and signalling point 2 can direct communications, so network equipment C has kept its original NI value to the message from signalling point 2.
When network equipment C receives a piece of news that comes from signalling point 3 from No. 1 link No. 3 link set, the NI=2 of this message, signaling point code are 14.When using method of the present invention, network equipment C at first checks the conversion mapping table, obtains transformation rule 1.Because the change over switch in the transformation rule 1 is closed, so this transformation rule is inoperative, then network equipment C turns to transformation rule 2.Change over switch in the transformation rule 2 is an open mode, and network equipment C reexamines constrained type and constraint portions.Because the constrained type in the transformation rule 2 is the link set conversion, is constrained to link set No. 1, and this message comes from link set No. 3, then constrained type in this message and the transformation rule 2 and constraint are not complementary, so network equipment C turns to transformation rule 3.Change over switch in the transformation rule 3 for open, constrained type is route conversion, be constrained to route No. 3, because this message comes from route No. 3, transformation rule 3 is applicable to this message, therefore network equipment C is converted to 3 with the NI value of this message by 2, and network equipment C will change the upper-layer user who sends to self behind the source codec of NI value more then.Therefore after network equipment C uses the method for present embodiment to convert the NI value in the message other NI value of agreement permission to, the different message process mode of NI according to the agreement regulation is decoded, then its upper-layer user just discerns this message according to the NI after the conversion, thus the intercommunication between the heterogeneous network that realization NI value is identical, the signaling point code structure is different.
When network equipment C when the network equipment 1,2,3 sends message, to check this conversion mapping table equally, before sending on the link, the NI in the message is converted to the network equipment 1,2,3 manageable NI to message.
The processing method to isomery No.7 nation-wide Network message by signalling point network equipment C has been described in the present embodiment; Similarly, also can be used the method for present embodiment by A, realize the intercommunication of isomery No.7 nation-wide Network, its idiographic flow is identical with the flow process that above-mentioned C uses.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1, a kind of processing method of isomery No.7 nation-wide Network message, it is characterized in that, the conversion rule information include between the active block indication that active block indication that the network equipment self can handle and heterogeneous network can handle is set in the network equipment in advance, receive a piece of news with the network equipment of heterogeneous network direct communication from heterogeneous network, perhaps prepare when heterogeneous network sends a piece of news, carry out following operation:
A. the described network equipment converts the indication of the network in this message numerical value to self can handle active block indication numerical value according to the conversion rule information that is applicable to this message, perhaps converts the active block indication numerical value that described heterogeneous network can be handled to;
B. send to self upper-layer user behind the source codec after the described network equipment will be changed, perhaps send to destination signaling point after the reorganization.
2, the method for claim 1, it is characterized in that, the active block indication that the described network equipment can be handled self is made as the source network indication, the active block indication that described heterogeneous network can be handled is made as the indication of purpose network, then steps A is described converts the network in this message indication numerical value to active block indication numerical value that the described network equipment can be handled self, and the method that perhaps converts the active block indication numerical value that heterogeneous network can handle to is:
If the described network equipment receives message, then the network indication with this message is converted to the source network indication according to the purpose network indication of this conversion rule information from the conversion mapping table;
If the described network equipment is ready for sending message, then the network indication with this message is converted to the indication of purpose network according to the source network indication of this conversion rule information from the conversion mapping table.
3, method as claimed in claim 2 is characterized in that, the described network equipment was carried out following operation before carrying out described steps A:
A1. check the conversion mapping table, obtain first transformation rule;
A2. judge whether this transformation rule is applicable to this message; If be suitable for, then according to this transformation rule execution in step A, otherwise, execution in step A3;
A3. judge whether this transformation rule is the tail record of changing in the mapping table; If, then finish this conversion process flow process, otherwise, turn to next the bar transformation rule in the conversion mapping table, return execution in step A2 then.
4, method as claimed in claim 3 is characterized in that, described transformation rule further comprises: change over switch, show the constrained type of transmission of messages mode and show the constraint of transmission of messages specifying information.
5, method as claimed in claim 4, it is characterized in that, the described network equipment judges whether described transformation rule is applicable to that the method for this message is: judge whether described change over switch is opened, if open, then judge described constrained type and constraint whether with this match messages, if then this transformation rule is applicable to this message, otherwise this transformation rule is not suitable for this message; If described change over switch is closed, then this transformation rule is not suitable for this message.
6, method as claimed in claim 5 is characterized in that, described constrained type comprises at least: link set conversion, link conversion or route conversion.
7, method as claimed in claim 6 is characterized in that:
If constrained type is the link set conversion, then described being constrained to: indicate the constraint of answering transforming message place link set;
If constrained type is the link conversion, then described being constrained to: indicate the constraint of answering transforming message place link;
If constrained type is the route conversion, then described being constrained to: indicate the constraint of answering transforming message place route.
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| US5867788A (en) * | 1996-06-03 | 1999-02-02 | Ericsson Inc. | Coverting a routing address within a telecommunications network |
| CN1300167A (en) * | 1999-12-16 | 2001-06-20 | Lg电子株式会社 | Method for mapping transform types in No.7 gate signalling networks |
| CN1329421A (en) * | 2000-06-14 | 2002-01-02 | Lg电子株式会社 | Intercommunication equipment between heterogeneous No.7 signaling networks and its method |
| US20030128832A1 (en) * | 2002-01-04 | 2003-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Message transfer part point code mapping method and node |
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2004
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5867788A (en) * | 1996-06-03 | 1999-02-02 | Ericsson Inc. | Coverting a routing address within a telecommunications network |
| CN1300167A (en) * | 1999-12-16 | 2001-06-20 | Lg电子株式会社 | Method for mapping transform types in No.7 gate signalling networks |
| CN1329421A (en) * | 2000-06-14 | 2002-01-02 | Lg电子株式会社 | Intercommunication equipment between heterogeneous No.7 signaling networks and its method |
| US20030128832A1 (en) * | 2002-01-04 | 2003-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Message transfer part point code mapping method and node |
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