CN101043474B - Method and apparatus for analyzing AS index - Google Patents
Method and apparatus for analyzing AS index Download PDFInfo
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- CN101043474B CN101043474B CN200610061451A CN200610061451A CN101043474B CN 101043474 B CN101043474 B CN 101043474B CN 200610061451 A CN200610061451 A CN 200610061451A CN 200610061451 A CN200610061451 A CN 200610061451A CN 101043474 B CN101043474 B CN 101043474B
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Abstract
The disclosed analysis device for AS index comprises: a SCRC module to receive upper request message and obtain PCSSN or PC from address according to SCCP route way and RI-pointed addressing method; aquery module to acquire the mapping relation between PC/PCSSN and AS index to obtain the corresponding AS; a transmission module to select objective ASP and send message to objective ASP for processing according to AS. This invention presents an exact scheme for analyzing AS index in SUA protocol, and introduces much convenience for user.
Description
Technical field
The invention belongs to the network information transfer technical field, specifically a kind of method of analyzing AS index and device.
Technical background
Along with the application and the popularization of Softswitch technology, the conventional telecommunications net just develops towards the direction with IP (Internet protocol, Internet protocol) net interconnecting.At present, IETF has proposed the adapting protocol of SCCP layer---SUA (Signalling Connection Control Part User Adaptation Layer, signaling connection control part customer message adaptation layer), so that stronger map addresses and routing function to be provided, and simpler management function.
SUA is supported in transmission No.7 signaling SCCP (Signalling Connection Control Part on the IP network, SCCP) user message, TCAP (Transaction Capabilities ApplicationPart for example, TCAP Transaction Capability Application Part) message, RANAP (Radio Access Network ApplicationPart Radio Access Network Application Part) message etc. realize TCAP over IP (TCAP message is being transmitted on the IP network), RANAP over IP functions such as (RANAP message are transmitted) on IP network.SUA not only supports the transmission of messages between SGW and Internet Protocol signaling point (as IP address database), also supports in the same IP network transmission of messages between two signalling points.
When the SUA that is positioned at SGW receives the message that the SCCP of this gateway sends, at first carry out address translation and map addresses, and be routed to the purpose Internet Protocol signaling point by SCTP (Stream Control Transport Protocol SCTP) coupling.When SUA receives message from IP network, then carry out address translation and map addresses, message is sent to the SCCP of SGW, and is routed to the No.7 signalling point.
AS (Application Server, application server) is a logic entity, is identified by specific routing key (Routing Key).ASP (application server process) is the process instance of AS, by routing context (Routing Context) sign, is used to handle communication with it.Be not mapping relations between AS and ASP, an AS comprises one group of independently ASP, and an ASP also can be a plurality of AS provides service.The all corresponding Internet Protocol signaling point of each ASP is for the SCTP layer provides service.A SGW can be considered as having one group of AS of No.7 signaling network interface.
The SUA agreement has been expanded the addressability of signaling, and it can adopt the IP address, and the mode that does not have among the SCCP such as host name and DNS is carried out routing addressing, for route planning and adjustment provide more efficient, mechanism more flexibly.But, present specific implementation of also in the SUA routing procedure, how to resolve AS index.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the present invention is to provide a kind of method and device of analyzing AS index, so that in the SUA routing procedure, can utilize DPC or DPCSSN analyzing AS index.
For finishing above-mentioned purpose, the overall technological scheme that the present invention takes is: a kind of method of resolving the application server AS index is provided, mainly may further comprise the steps:
A, SCCP route control SCRC module receive the message request that the upper-layer user issues;
If the routing indicator RI of B destination address indication is according to subsystem SSN addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, from calling address and called address, obtain the destination signaling point and the subsystem DPCSSN of message request, thereby obtain signalling point and subsystem PCSSN; If the RI indication is according to signaling point code PC addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, and obtains the destination signaling point sign indicating number DPC of message request from calling address and called address, thereby obtains PC;
C, according to described PC inquiry PC and AS index mapping relations, or, obtain and described PC or the corresponding AS of PCSSN according to described PCSSN inquiry PCSSN and AS index mapping relations;
D, according to AS, utilize the AS index to select purpose application server process ASP, and described message request is dealt into the purpose ASP that chooses handles.
PC among the step C and AS index mapping relations are:
The combination of PC and TID is corresponding to one or more AS, or
A PC is corresponding to one or more AS.
PCSSN among the step C and AS index mapping relations are:
The combination of PC and SSN is corresponding to one or more AS, or
PC, a SSN and TID three's combination is corresponding to one or more AS.
In addition, in the combination of a PC and TID corresponding to a plurality of AS, or
A PC is corresponding to a plurality of AS, or
The combination of PC and SSN is corresponding to a plurality of AS, or
Under PC, a SSN and TID three's the mapping relations of combination corresponding to a plurality of AS, by polling, load sharing, or the mode of active and standby usefulness obtain an AS according to a PC or PCSSN.
The present invention also provides a kind of device of resolving the application server AS index, mainly comprises:
SCCP route control SCRC module, be used to receive the message request that the upper-layer user issues, if the routing indicator RI of destination address indication is according to subsystem SSN addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, from calling address and called address, obtain the destination signaling point and the subsystem DPCSSN of message request, thereby obtain signalling point and subsystem PCSSN; If the RI indication is according to signaling point code PC addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, and obtains the destination signaling point sign indicating number DPC of message request from calling address and called address, thereby obtains PC;
Enquiry module is used for according to described PC, inquiry PC and AS index mapping relations, or according to described PCSSN inquiry PCSSN and AS index mapping relations, obtain and described PC or the corresponding AS of PCSSN;
Sending module according to AS, utilizes the AS index to select purpose application server process ASP, and described message request is dealt into the purpose ASP that chooses handles.
The present invention has tangible advantage and good effect:
The invention provides in the SUA agreement, the specific implementation of analyzing AS index, to not defining in the agreement clearly that routing procedure has carried out replenishing and perfect, the user is easier in use to be used and disposes.PC or PCSSN are regarded as AS, the granularity of AS is determined at SUA like this, the notion of AS also just is embodied in PC or PCSSN at SUA, help the user from SS7 (Signaling System Number 7, Signaling System Number 7) area of agreement is transferred to the IP field, uses and understands the SUA agreement from user's angle is easier.
Description of drawings
The schematic flow sheet of a kind of execution mode of the method for a kind of analyzing AS index of Fig. 1 the present invention;
The schematic flow sheet of the another kind of execution mode of the method for a kind of analyzing AS index of Fig. 2 the present invention;
The schematic representation of apparatus of a kind of analyzing AS index of Fig. 3 the present invention.
Embodiment
Below in conjunction with Figure of description the specific embodiment of the present invention is described.
Finish routing addressing by SCRC (SCCP routing control, routing module control) module, a major function of SCRC routing module is to obtain ASP according to destination address, and ASP has represented the cradle or the destination of a message.By the SUA agreement as can be known, obtain ASP, at first must obtain AS index (Application Server Index, AS index).The present invention solves problem how to utilize PC (Point Code, signaling point code) or PCSSN (Point Code and SSN, signalling point and subsystem) parsing to obtain AS index exactly in the SUA routing procedure.Wherein PC or PCSSN directly carry in the destination address of message, or according to destination address by traditional SCCP (Signalling ConnectionControl Part, SCCP) route obtains, or be converted to by IP address in the destination address or Hostname (Hostname).
As shown in Figures 1 and 2, to utilize PC or PCSSN to resolve the key step that obtains the AS index in the SUA routing procedure as follows in the present invention:
A, SCRC module receive the message request that the upper-layer user issues, and described message request is that the service request or the SCCP of far-end transmits the message of coming;
RI (the Route Indication routing indicator of B, judgement destination address, be a field in the destination address of message) addressing system of indication, if the RI indication is according to the SSN addressing, execution in step C then, if the RI indication is according to the PC addressing, then execution in step D;
C, according to the method for routing of SCCP, from the address, resolve and obtain PCSSNi (representing a subsystem number on the signalling point);
Be specially: the SCRC module is obtained called address and calling address from the message request that the user issues, from calling address and called address, obtain DPCSSN (the Destnation Point Code andSSN of message request, signalling point and subsystem), thus PCSSNi obtained.
D, according to the method for routing of SCCP, from the address, resolve and obtain PCi (representing a signaling point code);
Be specially: the SCRC module is obtained called address and calling address from the message request that the user issues, and obtains the DPC (Destnation Point Code, destination signaling point sign indicating number) of message request from calling address and called address, thereby obtains PCi.
E, according to described PC or PCSSN, inquiry PC and AS index mapping relations, or PCSSN and AS index mapping relations obtain and described PCi or the corresponding ASj of PCSSNi (representing an application server);
F, according to ASj, utilize AS index to select purpose ASPk (representing an application server process), and described message request is dealt into the purpose ASPK that chooses handles.
Wherein, the mapping relations of PC and AS index are that the user is provided with as required, specifically can adopt multiple implementation of the prior art, for example: can be following mapping relations:
PC+TID--AS, this mapping is that combination by a PC and TID (affairs ID) is corresponding to an AS;
PC--AS, this mapping is that a PC is corresponding to an AS.
The mapping relations of PCSSN and AS index also are that the user is provided with as required, specifically can adopt multiple implementation of the prior art, for example: can be following mapping relations:
PC+SSN--AS, this mapping is that the combination of a PC and SSN is corresponding to an AS;
PC+SSN+TID--AS, this mapping is that the combination of PC, a SSN, TID (affairs ID) is corresponding to an AS.
Can the relevant information of above-mentioned mapping relations be imported and be provided with by carry out the mode of static state or dynamic configuration data at configuration interface.The mode of configuration data can be the equipment that directly is disposed at current operation; Also can be to be configured on other entities, and obtain from this entity dynamic queries by the equipment of current operation.
The mapping relations of PC and AS index, PCSSN and AS index can be to shine upon one by one, also can be the one-to-many mappings.If one-to-many when mapping, i.e. corresponding a plurality of AS index of a PC (PCSSN) are specially:
The combination of PC and TID (affairs ID) is corresponding to a plurality of AS;
A PC is corresponding to a plurality of AS.
The combination of PC and SSN is corresponding to a plurality of AS;
The combination of PC, a SSN, TID (affairs ID) is corresponding to a plurality of AS.
For a PC or PCSSN, can adopt polling, active and standby usefulness or load sharing methods such as (as: percentage share) to obtain corresponding one of them AS index.
If during man-to-man mapping relations, by a PC, or PC+SSN, or PC+TID, or combination such as PC+SSN+TID can be unique when getting access to an AS, can directly use the ASP among this AS, and then find corresponding ASP index.
But if the relation of one-to-many, by a PC, or PC+SSN, or PC+TID, or combination such as PC+SSN+TID just can't directly determine to use which AS wherein can obtain a plurality of AS the time, so just needs a kind of mechanism to guarantee, for example:
Polling: be meant in the SUA agreement,, between these a plurality of AS, carry out polling, guaranteed all loads of load according to traffic carrying capacity.
Load percentage share: be meant in the SUA/M3UA agreement, according to traffic carrying capacity, according to the percentage of giving each AS is set, according to give certainty ratio business is distributed between a plurality of AS.
Active and standby usefulness: be meant in the SUA/M3UA agreement,, all give the main of appointment all business and use AS that after the AS of main usefulness fault, just give standby AS with business, this moment, standby AS upgraded to the AS of main usefulness according to setting.
As shown in Figure 3, the present invention also provides a kind of device of analyzing AS index, mainly comprises:
The SCRC module, be used to receive the message request that the upper-layer user issues, described message request is that the service request of far-end or SCCP transmit the message of coming, and according to the addressing system of the RI indication of destination address, according to the method for routing of SCCP, from the address, resolve and obtain PCSSNi or PCi;
Enquiry module is used for according to described PC or PCSSN, and inquiry PC and AS index mapping relations, or PCSSN and AS index mapping relations obtain and described PCi or the corresponding ASj of PCSSNi;
Sending module according to ASj, utilizes AS index to select purpose ASPk, and described message request is dealt into the purpose ASPK that chooses handles.
The function of described SCRC module is specially:
Be used to receive the message request that the upper-layer user issues, described message request is that the service request or the SCCP of far-end transmits the message of coming, and according to the addressing system according to the SSN addressing of the RI of destination address indication, from the message request that the user issues, obtain called address and calling address, from calling address and called address, obtain the DPCSSN of message request, thereby obtain PCSSNi; Perhaps
Be used to receive the message request that the upper-layer user issues, described message request is that the service request or the SCCP of far-end transmits the message of coming, and according to the addressing system according to the PC addressing of the RI of destination address indication, from the message request that the user issues, obtain called address and calling address, from calling address and called address, obtain the DPC of message request, thereby obtain PCi.
The beneficial effect that technical solution of the present invention is brought:
Provide in the SUA agreement, the specific implementation of analyzing AS index, to not defining in the agreement clearly that routing procedure has carried out replenishing and perfect, the user is easier in use to be used and disposes.PC or PCSSN are regarded as AS, the granularity of AS is determined at SUA like this, the notion of AS also just is embodied in PC or PCSSN at SUA, help the user from SS7 (Signaling System Number 7, Signaling System Number 7) area of agreement is transferred to the IP field, uses and understands the SUA agreement from user's angle is easier.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (5)
1. a method of resolving the application server AS index is characterized in that, mainly may further comprise the steps:
A, SCCP route control SCRC module receive the message request that the upper-layer user issues;
If the routing indicator RI of B destination address indication is according to subsystem SSN addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, from calling address and called address, obtain the destination signaling point and the subsystem DPCSSN of message request, thereby obtain signalling point and subsystem PCSSN; If the RI indication is according to signaling point code PC addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, and obtains the destination signaling point sign indicating number DPC of message request from calling address and called address, thereby obtains PC;
C, according to described PC inquiry PC and AS index mapping relations, or, obtain and described PC or the corresponding AS of PCSSN according to described PCSSN inquiry PCSSN and AS index mapping relations;
D, according to AS, utilize the AS index to select purpose application server process ASP, and described message request is dealt into the purpose ASP that chooses handles.
2. the method for analyzing AS index according to claim 1 is characterized in that, PC among the step C and AS index mapping relations are:
The combination of PC and TID is corresponding to one or more AS, or
A PC is corresponding to one or more AS.
3. the method for analyzing AS index according to claim 1 is characterized in that, PCSSN among the step C and AS index mapping relations are:
The combination of PC and SSN is corresponding to one or more AS, or
PC, a SSN and TID three's combination is corresponding to one or more AS.
4. according to the method for claim 2 or 3 described analyzing AS indexes, it is characterized in that,
In the combination of a PC and TID corresponding to a plurality of AS, or
A PC is corresponding to a plurality of AS, or
The combination of PC and SSN is corresponding to a plurality of AS, or
Under PC, a SSN and TID three's the mapping relations of combination corresponding to a plurality of AS, by polling, load sharing, or the mode of active and standby usefulness obtain an AS according to a PC or PCSSN.
5. a device of resolving the application server AS index is characterized in that, mainly comprises:
SCCP route control SCRC module, be used to receive the message request that the upper-layer user issues, if the routing indicator RI of destination address indication is according to subsystem SSN addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, from calling address and called address, obtain the destination signaling point and the subsystem DPCSSN of message request, thereby obtain signalling point and subsystem PCSSN; If the RI indication is according to signaling point code PC addressing, then the SCRC module is obtained called address and calling address from the message request that the user issues, and obtains the destination signaling point sign indicating number DPC of message request from calling address and called address, thereby obtains PC;
Enquiry module is used for according to described PC inquiry PC and AS index mapping relations, or according to described PCSSN inquiry PCSSN and AS index mapping relations, obtains and described PC or the corresponding AS of PCSSN;
Sending module according to described AS, utilizes the AS index to select purpose application server process ASP, and described message request is dealt into the purpose ASP that chooses handles.
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| CN200610061451A CN101043474B (en) | 2006-06-29 | 2006-06-29 | Method and apparatus for analyzing AS index |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1463124A (en) * | 2002-05-28 | 2003-12-24 | 华为技术有限公司 | Method for realizing signaling transit point in IP domain of user adaption layer in signaling network layer |
| CN1463112A (en) * | 2002-05-31 | 2003-12-24 | 华为技术有限公司 | Method for realizing traffic load sharing in user adaptation layer of signaling network layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1463124A (en) * | 2002-05-28 | 2003-12-24 | 华为技术有限公司 | Method for realizing signaling transit point in IP domain of user adaption layer in signaling network layer |
| CN1463112A (en) * | 2002-05-31 | 2003-12-24 | 华为技术有限公司 | Method for realizing traffic load sharing in user adaptation layer of signaling network layer |
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