CN1241382C - Realizing method of trunk business self looping - Google Patents
Realizing method of trunk business self looping Download PDFInfo
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- CN1241382C CN1241382C CNB021460914A CN02146091A CN1241382C CN 1241382 C CN1241382 C CN 1241382C CN B021460914 A CNB021460914 A CN B021460914A CN 02146091 A CN02146091 A CN 02146091A CN 1241382 C CN1241382 C CN 1241382C
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- relaying
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Abstract
The present invention provides a realizing method for the self-loop of relay service. The method comprises the following steps: A. interfaces of a relay physical medium flow in and out of an office are connected to form a self-loop; B. the function of the service self-loop transmitting relay signaling in and out of the office is started by using the characteristic of the service self-loop of a signaling transmitting interface; C. a call request containing a modified calling instance code and a calling number is reported to switching application to make data sent back to the office and form the self-loop. The present invention is used for making a BICC call out of an office become an incoming call; in the processes of office building, upgrading and expansion, the debugging and the testing of a BICC relay state, the reliability and the validity of a medium carrier used by the BICC, and problem positioning when related problems occur are independently completed in the office.
Description
Technical field
The present invention relates to the junction traffic technical field, be meant the implementation method of a kind of junction traffic especially from ring.
Background technology
Along with applying of BICC (Bearer Independent Call Control) agreement, in beginning and escalation process, must debug, and debugging work must be just can carry out under the situation that the personnel that play a game cooperate the BICC relaying of new beginning.
In Bearer Independent Call Control Protocol is used, topological diagram in the network between each functional node is as shown in Figure 1: two service nodes (SN) of supporting the BICC signalings, each links to each other with a switch (EXC), and SN mainly comprises call service function (CSF) and bearer inter-working function (BIWF).Call service function between two SN transmits the mutual messaging of interface by relaying signaling interface and signaling and realizes; Bearer inter-working function between two SN is realized by physical medium stream interface messaging.Can find out thus that message transmission that internodal relaying signaling interface, signaling transmit interface and physical medium stream interface relies on to play a game with cooperating and just can finish.
The normative model figure of node application realizes Application Entity Invocation function (AEI) by the nodal function interface as shown in Figure 2, its result is delivered to the signaling transmitting transducer again and finishes internodal exchange application.
Prior art is used the call flow diagram of Bearer Independent Call Control Protocol as shown in Figure 3.Realize the link to each other Interface Serving Node (ISN) of function of non-BICC net and BICC net, comprise and carry Control Node function (BCF-N) and call business nodal function (CSF-N).CCF is finished by ISN, and Media Stream exchange control is finished by switching node (SWN).Switching node has carrying control relay function (BCF-R), and it is finished by edge-to-edge backbone network or switching node information transfer function to next switching node.It is example that this figure inserts the intercommunication mode with ISUP (ISUP:ISDN User Part), and the call flow of two Interface Serving Nodes is as follows:
When inserting side at ISUP, originator node ISN-A receives calling subscriber's initial address (IAM) message, this message can comprise the information that continue control, address etc. are necessary, and after determining that this calling will be routed to another call business node, then start out signaling procedure.Out signaling procedure will be selected a kind of signaling relation that is used for being identified in two reciprocity BICC inter-entity of a free time, and the Call Instance Code (CIC) that belongs to all protocol Data Units (PDU) of this signaling relation, the CIC value of in this figure, representing out junction call example 1 with BICC-O-1, represent the CIC value of Incoming junction call example 1 with BICC-I-1, and call the carrying creation facilities program (CFP) that out carrying creation facilities program (CFP) sends IAM message and carries out next node ISN-B.Going out office signaling after sending IAM message, mainly is to rely on Application Transport Mechanism (APM) to finish the reciprocal process of bear control information.Start simultaneously and wait for the full timer in address.
When call business nodal function (CSF) module on the destination node ISN-B is received initial address (IAM) message that node ISN-A sends, analyze called number and call out relevant information so that the route of determining to call out starts the Incoming signaling procedure then with routing and processing with other.Call business nodal function (CSF) module in the Incoming signaling procedure determines that all called numbers receive, perhaps receive TIB tone in band from the called subscriber, be that interoffice connects the indication of sending sound to connect to the opposite end medium by medium, then call business nodal function (CSF) module on the destination node will send Address Complete Message (ACM), perhaps after the ACM message that the out-trunk of follow-up office is received, the CSF functional module of Transit Serving Node will send Address Complete Message ACM.Going into office signaling after receiving IAM message, mainly also is to rely on Application Transport Mechanism (APM) to finish the reciprocal process of bear control information.
After out signaling procedure is received Address Complete Message (ACM), stop to wait for full timer in address and startup wait acknowledge timer.During called subscriber answer, destination node connects inner bearer path, and call business nodal function (CSF) module on previous node sends response message (ANM).When call business nodal function (CSF) module on the originator node ISN-A is received response message (ANM), the connection that indication is asked has been finished, if also do not connect inner bearer path, then finish inner bearer path again, and stop the wait acknowledge timer.So far, a call flow is finished.
Owing to be between two nodes, be that interoffice communicates, after out signaling procedure has been selected a CIC value, can in message, carry this CIC value, the Incoming signaling procedure is then handled according to the CIC value in the message, so in a single day out signaling procedure has determined a CIC value, the CIC value of Incoming signaling procedure is also just corresponding have been determined, be that out relaying and Incoming relaying CIC value are in full accord, just BICC-O-1 equals BICC-I-1.Simultaneously, ISUP inserts the BICC net by service node, passes through the ISUP outbound call again, and then this number Duo the special calling prefix of a selection BICC relaying outbound call, i.e. a part in the destination address in the call number than the number of original incoming call.
This shows that the cooperation of the service node (SN) of playing a game in beginning, upgrading and dilation process is absolutely necessary, simultaneously some orientation problem staff that also needs to play a game carries out some operation, observation etc.Therefore, feasible beginning debugging, test job and positioning problems work each time all needs to increase the co-ordination of a lot of interoffices, and holding time is many, and inefficiency.
Summary of the invention
In view of this, the invention provides the implementation method of a kind of junction traffic from ring, before can being cooperated prior to the staff that plays a game, beginning debugging, test job and positioning problems work carries out, promptly comparatively independently finish the reliability and the validity of debugging, test b ICC relay state and the media bearer that uses thereof at this intra-office, and the positioning problems work when relevant issues occurring.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of junction traffic from the ring implementation method, this method may further comprise the steps: A, with physics mode with local exchange go out, go into relaying physical medium stream interface directly connect into from the ring; The relaying physical medium stream interface that goes out, goes into of described local exchange is to be positioned to go out, go into relaying physical medium stream interface on the same service node; B, the business of utilizing signaling to transmit interface start the professional self-loop function that local exchange discrepancy relaying signaling transmits from ring property, the value of conversion discrepancy junction call example code, and the prefix data in the deletion call number; C, the call request that will contain the Call Instance Code revised and call number report exchange and use, and business datum loopback local exchange is formed from ring.
Wherein, be bearer properties when being the media gateway of IP when what adopt, the described physical connection mode of steps A is directly to connect in same IP network and reached at route each other with transceiver terminal.
Wherein, when adopt be the media gateway of asynchronous transfer mode (ATM) time, the described physical connection mode of steps A is that the mode with the direct loopback of transmission line directly connects.
Wherein, when adopting IP network, the described business of step B is that IP network transmits loop fuction from ring property.
Wherein, when adopting No. 7 signaling network, the described business of step B is that the No.7 signaling sends back ring function from ring property.
Wherein, the described business of step B is that signaling transmits the interface self-loop function from ring property.
Wherein, the value of the described call by variable example code of step B is the Call Instance Code that becomes the Incoming relaying by the Call Instance Code that the configuration data control operation sends message with out relaying, and the Call Instance Code that the Incoming relaying is sent message becomes the Call Instance Code of out relaying.
Wherein, prefix data in the described deletion call number of step B are to send at the exchange application function to set up call request to BICC before the out relaying, or make a call by the out relaying of BICC, BICC Incoming relaying receives to be finished behind the initial address message of setup requests.
Wherein, the prefix data in the described deletion call number of step B are the parts in the destination address of deleting in the call number.
Use the present invention, owing to can before cooperation, comparatively independently debug for personnel, the reliable consonance validity of test b ICC relay state and employed media bearer thereof, therefore, debugging in advance when being more conducive to beginning, upgrading, and after in running, going wrong, carry out positioning problems.The independence of this function in debugging and test job, making that its debugging work, test job and positioning problems work are easier carries out.It is simple, reliable that this method is used.
Description of drawings
Fig. 1 is topological diagram between the network function node of prior art application Bearer Independent Call Control Protocol;
Fig. 2 uses the normative model figure of the node application of Bearer Independent Call Control Protocol for prior art;
Fig. 3 uses the call flow diagram of Bearer Independent Call Control Protocol for prior art;
Fig. 4 is topological diagram between the network function node of using Bearer Independent Call Control Protocol of the present invention;
Fig. 5 is for using the node using standard illustraton of model of Bearer Independent Call Control Protocol of the present invention;
Fig. 6 is for using the call flow diagram of Bearer Independent Call Control Protocol of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further details.
At the application of Bearer Independent Call Control Protocol, mainly take following steps to realize:
At first, make being connected to form between the media bearer by the physical connection mode from ring.For example be the media gateway of IP for bearer properties, only the terminal that needs transmitting-receiving has the route that can reach to realize in same IP network each other; For the media gateway that adopts asynchronous transfer mode (ATM), the mode of the direct loopback of available transmission line directly connects.
Secondly, utilize transmission loop fuction or other agreement of the transmission loop fuction or the No.7 signaling network of IP network, the module as signaling transmission interface self-loop function in the Bearer Independent Call Control Protocol starts the professional self-loop function that signaling transmits.Realize message that BICC the sends signaling by lower floor transmit interface with the information reporting received to the BICC entity.For example, if use the signaling of MTP3 to transmit, the professional self-loop function that then directly starts the MTP3 signaling can realize that signaling transmits the self-loop function of interface.
Figure 4 shows that topological diagram between the network function node of using Bearer Independent Call Control Protocol of the present invention, service node B-SN among the figure has become the service node of a virtual presence, service node A-SN transmits the professional self-loop function of interface, the self-loop function of physical medium stream interface by signaling interface and signaling, make the outbound call of BICC become the incoming call of BICC, be the cooperation that debugging, test and the positioning problems work of service node A-SN does not need the service node of other any reality on the network, be independent of service node B-SN and carry out.
At last, the module that control data starts the junction traffic self-loop function is set, comes data conversion in the controlling call process to realize the self-loop function of junction traffic.
Figure 5 shows that the node using standard illustraton of model of using Bearer Independent Call Control Protocol of the present invention, after the exchange application function is selected the out signaling procedure of Bearer Independent Call Control Protocol, can send at the exchange application function and set up call request to BICC before the out relaying, or make a call by the out relaying of BICC, after BICC Incoming relaying receives the initial address message (IAM) of setup requests, the call prefix data of Bearer Independent Call Control Protocol striking out are selected in deletion, promptly delete the part in the destination address in the call number, utilize signaling to transmit the professional self-loop function of interface, report call request to use for exchange, after the setup requests of Incoming is reported the exchange application like this, just can correctly select called, and the outbound call that can not repeat to select once more Bearer Independent Call Control Protocol to initiate.
Figure 6 shows that the call flow diagram of using Bearer Independent Call Control Protocol of the present invention, when originator node ISN-A after ISUP inserts side and receives calling subscriber's IAM message, start out signaling procedure, out signaling procedure will be selected the CIC value of a free time, make the CIC value of the message of out relaying transmission become the CIC value of the Incoming relaying that is about to use by configuration data control, make the CIC value of the message that the Incoming relaying sends become the CIC value of out relaying, the CIC value of representing out junction call example 1 in the present embodiment with BICC-O-1 is represented the CIC value of Incoming junction call example 1 with BICC-I-1.Going out office signaling after sending IAM message, mainly is to rely on Application Transport Mechanism (APM) to finish the reciprocal process of bear control information, starts simultaneously and waits for the full timer in address.
After destination node ISN-A receives initial address (IAM) message, out call prefix data are selected in deletion, and report call request to use for exchange, when call business nodal function (CSF) module on destination node ISN-A is received initial address (IAM) message that originator node ISN-A sends like this, just can call out relevant information so that the route of determining to call out starts the Incoming signaling procedure then with other with routing and processing by the correct analysis called number.Call business nodal function (CSF) module in the Incoming signaling procedure determines that all called numbers receive, perhaps receive the indication that TIB tone in band has connected from the called subscriber, then call business nodal function (CSF) module on the node of destination will send Address Complete Message (ACM), perhaps after the ACM message that the out relaying of follow-up office is received, the CSF functional module of Transit Serving Node will send Address Complete Message ACM.Going into office signaling after receiving IAM message, mainly also is to rely on Application Transport Mechanism (APM) to finish the reciprocal process of bear control information.
After out signaling procedure is received Address Complete Message (ACM), stop to wait for full timer in address and startup wait acknowledge timer.During called subscriber answer, send response message (ANM), after originator node received response message, the connection that indication is asked had been finished, and stops the wait acknowledge timer.So far, a call flow is finished.
The request of outbound call initiation transmits interface by the signaling with professional self-loop function like this, send local exchange back to, report the Bearer Independent Call Control Protocol module, become an incoming call, finish the function the same with normal call, thereby the reliability and the validity of checking BICC relaying, and the reliability and the validity of the carrying of BICC relaying use.
Owing to control the CIC value that the CIC value that makes out relaying send out message becomes the Incoming relaying by configuration data, the CIC value of secondary message becomes the CIC value of out relaying in the Incoming, and give before exchange uses reporting call request, deleted the prefix of selecting BICC relaying outbound call number destination address part, thereby satisfied the Data Control requirement of junction traffic from ring, junction traffic is achieved from ring.
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 done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of junction traffic is characterized in that from the implementation method of ring this method may further comprise the steps:
A, with physics mode with local exchange go out, go into relaying physical medium stream interface directly connect into from the ring; The relaying physical medium stream interface that goes out, goes into of described local exchange is to be positioned to go out, go into relaying physical medium stream interface on the same service node;
B, the business of utilizing signaling to transmit interface start the professional self-loop function that local exchange discrepancy relaying signaling transmits from ring property, the value of conversion discrepancy junction call example code, and the prefix data in the deletion call number;
C, the call request that will contain the Call Instance Code revised and call number report exchange and use, and business datum loopback local exchange is formed from ring.
2, junction traffic according to claim 1 is from the implementation method of ring, it is characterized in that: when what adopt is bearer properties when being the media gateway of IP, and the described physical connection mode of steps A is directly to connect in same IP network and reached at route each other with transceiver terminal.
3, junction traffic according to claim 1 is characterized in that from the implementation method of ring: when adopt be the media gateway of asynchronous transfer mode (ATM) time, the described physical connection mode of steps A is that the mode with the direct loopback of transmission line directly connects.
4, junction traffic according to claim 1 is characterized in that from the implementation method of ring: when adopting IP network, the described business of step B is that IP network transmits loop fuction from ring property.
5, junction traffic according to claim 1 is characterized in that from the implementation method of ring: when adopting No. 7 signaling network, the described business of step B is that the No.7 signaling sends back ring function from ring property.
6, junction traffic according to claim 1 is characterized in that from the implementation method of ring: the described business of step B is that signaling transmits the interface self-loop function from ring property.
7, junction traffic according to claim 1 is from the implementation method of ring, it is characterized in that: the value of the described call by variable example code of step B is the Call Instance Code that becomes the Incoming relaying by the Call Instance Code that the configuration data control operation sends message with out relaying, and the Call Instance Code that the Incoming relaying is sent message becomes the Call Instance Code of out relaying.
8, junction traffic according to claim 1 is from the implementation method of ring, it is characterized in that: the prefix data in the described deletion call number of step B are to send at the exchange application function to set up call request to BICC before the out relaying, or make a call by the out relaying of BICC, BICC Incoming relaying receives to be finished behind the initial address message of setup requests.
9, junction traffic according to claim 1 is characterized in that from the implementation method of ring: the prefix data in the described deletion call number of step B are the parts in the destination address of deleting in the call number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021460914A CN1241382C (en) | 2002-10-30 | 2002-10-30 | Realizing method of trunk business self looping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021460914A CN1241382C (en) | 2002-10-30 | 2002-10-30 | Realizing method of trunk business self looping |
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| CN1494294A CN1494294A (en) | 2004-05-05 |
| CN1241382C true CN1241382C (en) | 2006-02-08 |
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| CNB021460914A Expired - Fee Related CN1241382C (en) | 2002-10-30 | 2002-10-30 | Realizing method of trunk business self looping |
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| CN102036203A (en) * | 2010-12-23 | 2011-04-27 | 中兴通讯股份有限公司 | Callback service processing method and equipment |
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