CN100568856C - Use routing key to carry out the method for signalling route - Google Patents
Use routing key to carry out the method for signalling route Download PDFInfo
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- CN100568856C CN100568856C CNB2005100413109A CN200510041310A CN100568856C CN 100568856 C CN100568856 C CN 100568856C CN B2005100413109 A CNB2005100413109 A CN B2005100413109A CN 200510041310 A CN200510041310 A CN 200510041310A CN 100568856 C CN100568856 C CN 100568856C
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Abstract
The invention discloses a kind of method of using routing key to carry out signalling route, wherein, in the M3UA of Sigtran system adaptation layer, utilize the different at least a routing key of priority to search the coupling application server successively, realize the route control of signaling message, specifically may further comprise the steps: the signaling relation of planning network and signalling route; Annexation, business model, routing configuration and the routing key allocation list of described Sigtran system are set, and the routing key allocation list is set the priority of described routing key; Search the described application server of coupling according to priority successively by routing key, transmit described signaling message.The method that use routing key of the present invention carries out signalling route allows multiple routing mode to exist simultaneously, system uses the most appropriate routing key to carry out best route control, select suitable route, flexile Route Selection is provided, is convenient to route and load sharing strategy that network operation person formulates signaling.
Description
Technical field
The present invention relates to communication network and NGN (Next Generation Network, next generation network) use signaling system to finish the switching method of control information in, in particularly a kind of signaling system, support Sigtran (Signaling Transport, the signaling transmission) M3UA (MTP3-User Adapter, MTP3 user the is adaptive) adaptation layer of function is used the method for multiple routing key simultaneously.
Background technology
Use signaling to finish the exchange of control information in the communication network, therefore signaling system occupies important status in communication network, such as traditional based on Circuit-switched communication network in, a large amount of SS No.7 (Signaling System No.7, No.7 signalling system) that use.Along with the development of technology, the target of the extensive use of IP network and many net unifications, the demand that the fusion of circuit-switched network and IP packet switching network occurred and in the IP packet network, transmitted traditional signaling message.IETF (The Internet EngineeringTask Force for this reason, Internet engineering duty portion) formulated the Sigtran series of canonical, Sigtran has comprised multiple adapting protocol and SCTP (Stream Control Transmission Protocol, SCTP) agreement is finished the function at the IP network command transmitting together.
In traditional No.7 (No. seven) signaling system, the transmission of message is to be finished by MTP (Message TransferPart, Message Transfer Part), and the route selection information that MTP uses is DPC (Destination PointCode, a Destination Point Code).
The new Sigtran system that proposes, because bottom is connectionless IP packet network, so the selective use of the mechanism of routing more flexibly can be arranged, provide multiple different routing key for different adaptation layers, and also multiple compound mode can have been arranged for the routing key of each adaptation layer.M3UA is as a kind of the most frequently used adapting protocol, routing key (Route Key) can be DPC, DPC+SIO, DPC+OPC+SIO, DPC+OPC+SIO+CIC, DPC+SSN, but agreement regulation:, all can only have a routing key coupling for any message transmission.
In some cases, the operator of network be the requirement signaling network the message route very flexibly, for example can be to make a specific routing key at the signaling of certain a part of DPC, but want that again the signaling of all the other certain a part of SIO or even the signaling of a part of CIC are had other signalling route simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of method of using routing key to carry out signalling route, solve in the existing protocol and can't utilize a plurality of routing keys to carry out the defective of signalling route, can allow multiple routing mode to exist simultaneously.
In order to realize the foregoing invention purpose, the invention provides a kind of method of using routing key to carry out signalling route, wherein, in the M3UA of Sigtran system adaptation layer, utilize the different at least a routing key of priority according to priority just to search the coupling application server in proper order successively, when the coupling application server state that finds can transmit signaling message by the M3UA requirement, carrying out signaling message sends, do not find coupling application server state yet can transmit signaling message by the M3UA requirement time at the routing key that utilizes lowest priority, abandon signaling message.
Above-mentioned use routing key carries out the method for signalling route, wherein, specifically may further comprise the steps:
Step 1, the signaling relation of planning network and signalling route;
Step 2 is provided with annexation, business model, routing configuration and the routing key allocation list of described Sigtran system, and described routing key allocation list is set the priority of described routing key;
Step 3, utilize the different at least a routing key of priority according to priority just to search the coupling application server in proper order successively, when the coupling application server state that finds can transmit signaling message by the M3UA requirement, carrying out signaling message sends, do not find coupling application server state yet can transmit signaling message by the M3UA requirement time at the routing key that utilizes lowest priority, abandon signaling message.
Above-mentioned use routing key carries out the method for signalling route, and wherein, step 3 specifically may further comprise the steps:
Step 31 selects the described routing key of limit priority to search the coupling application server, if can not find corresponding application server, enters step 32; If can find corresponding application server to enter step 35;
Step 32 reduces one-level priority and searches the coupling application server, if can not find corresponding application server, enters step 33, if can find corresponding application server, enters step 35;
Step 33 judges whether the routing key in the described step 32 is the lowest priority routing key, if enter step 34, if not returning described step 32;
Step 34 abandons described signaling message;
Does step 35 judge that the application server state that finds in described step 31 or the step 32 can pass-along message by protocol requirement? if enter step 36, if not returning described step 32;
Step 36, the assembling adaptive transmission in signaling message unit.
Above-mentioned use routing key carries out the method for signalling route, and is wherein, further comprising the steps of between described step 33 and the step 34:
Step 37, whether can pass-along message, if enter described step 36, if not entering step 34 if judging that the default application server state is pressed protocol requirement;
Routing key in the described step 33 in the described step 32 of judgement enters described step 37 when being the lowest priority routing key, does not enter step 34.
Above-mentioned use routing key carries out the method for signalling route, and wherein, multipriority is high more more for information in the described routing key.
Above-mentioned use routing key carries out the method for signalling route, wherein, realizes between signaling gateway process and the application server process or the adaptive transmission of the signaling between the IP Server Process.
The method that use routing key of the present invention carries out signalling route allows multiple routing mode to exist simultaneously, system uses the most appropriate routing key to carry out best route control, select suitable route, flexile Route Selection is provided, is convenient to route and load sharing strategy that network operation person formulates signaling.
Description of drawings
Fig. 1 is the inventive method implementing procedure figure;
Fig. 2 is to be the concrete workflow diagram of step 103 in the method implementation process among Fig. 1.
Embodiment
Use routing key of the present invention carries out the method for signalling route, realize multiple routing key simultaneously in the M3UA of Sigtran adaptation layer, be included in SGP (Signalling Gateway Process, signaling gateway process) with ASP (Application Server Process, application server process) between or IPSP (IP Server Process, IP Server Process) and the adaptive transmission of the signaling between the IPSP, finish the better controlled function of route more flexibly.
Method of the present invention has been used multiple routing key in adaptation layer, adaptation layer is determined the route that message is transmitted according to routing key, use the M3UA adaptation layer as Sigtran, routing key can be DPC, DPC+SIO, DPC+OPC+SIO or DPC+OPC+SIO+CIC;
Simultaneously, the implication of every kind of routing key is carried out the definition of priority, and it is high more that the many more priority of routing key information for example can be set: priority that can routing key is set to (DPC+OPC+SIO+CIC)＞(DPC+OPC+SIO)＞(DPC+SIO)＞(DPC).Concrete established standards can be provided with by the user, two kinds of routing key modes of DPC+SIO and DPC for example are set between two exchange, the signaling message of a certain specified services type uses a signalling route (DPC+SIO), and the signaling message of all the other types of service uses another signalling route (DPC).Can be that the definition that priority is set is used in the overall situation, also can be for each adjacent signaling points, and the definition of priority all is different, and the definition of priority also can be by user's modification.
When adaptation layer is used routing key, search the routing key of coupling and determine the message route, the first-selected high routing key of priority that uses, next uses the routing key of the low one-level of priority, to the signaling message routing and transmit.If the routing key that priority is high at first finds the routing of coupling, use this route pass-along message so, and, use low priority to search for the routing that does not find coupling.
The priority of supposing routing key is set to (DPC+OPC+SIO+CIC)＞(DPC+OPC+SIO)＞(DPC+SIO)＞(DPC), if then use DPC+OPC+SIO+CIC not find the route of coupling, use DPC+OPC+SIO so, if failure then continue to reduce use the priority of routing key, until using DPC to search the selection route, whether allow system to use the low priority routing key to be provided with automatically by the user.The priority of DPC+SSN can be in conjunction with concrete environment for use configuration, and the value that the DPC+SSN compound mode has been defaulted as SIO is the SCCP type, can be equal to DPC+SIO+SSN, and it is higher than DPC+SIO priority to be set.
As shown in Figure 1, for the concrete flow chart of implementing of method of the present invention, comprise the steps:
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (6)
1, a kind of method of using routing key to carry out signalling route, it is characterized in that, in the M3UA of Sigtran system adaptation layer, utilize the different at least a routing key of priority according to priority just to search the coupling application server in proper order successively step by step, when the coupling application server state that finds can transmit signaling message by the M3UA requirement, carrying out signaling message sends, do not find coupling application server state yet can transmit signaling message by the M3UA requirement time at the routing key that utilizes lowest priority, abandon signaling message.
2, use routing key according to claim 1 carries out the method for signalling route, it is characterized in that, specifically may further comprise the steps:
Step 1, the signaling relation of planning network and signalling route;
Step 2 is provided with annexation, business model, routing configuration and the routing key allocation list of described Sigtran system, and described routing key allocation list is set the priority of described routing key;
Step 3, use described routing key according to priority just to search the described application server of coupling in proper order successively step by step according to described priority, when the described application server state of coupling can transmit signaling message by the M3UA requirement, transmit described signaling message, when the routing key that utilizes lowest priority does not find the coupling application server yet, wherein mate the application server state and can transmit signaling message, then abandon signaling message by the M3UA requirement.
3, use routing key according to claim 2 carries out the method for signalling route, it is characterized in that step 3 specifically may further comprise the steps:
Step 31 selects the described routing key of limit priority to search the coupling application server, if can not find the coupling application server, enters step 32; If can find the application server of coupling to enter step 35;
Step 32 reduces one-level priority and searches the coupling application server, if can not find the coupling application server, enters step 33, if can find the coupling application server, enters step 35;
Step 33 judges whether the routing key in the described step 32 is the lowest priority routing key, if enter step 34, if not returning described step 32;
Step 34 abandons described signaling message;
Step 35 judges whether the coupling application server state that finds in described step 31 or the step 32 can transmit signaling message by the M3UA requirement, if enter step 36, if not returning described step 32;
Step 36, the assembling adaptive transmission in signaling message unit.
4, use routing key according to claim 3 carries out the method for signalling route, it is characterized in that, and is further comprising the steps of between described step 33 and the step 34:
Step 37 judges whether the default application server state can transmit signaling message by the M3UA requirement, if enter described step 36, if not entering step 34;
Routing key in the described step 33 in the described step 32 of judgement enters described step 37 when being the lowest priority routing key, does not enter step 34.
5, carry out the method for signalling route according to claim 1,2,3 or 4 described use routing keys, it is characterized in that, multipriority is high more more for information in the described routing key.
6, carry out the method for signalling route according to claim 1,2,3 or 4 described use routing keys, it is characterized in that, realize between signaling gateway process and the application server process or the adaptive transmission of signaling between IP Server Process and the IP Server Process.
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| CN100583833C (en) * | 2007-04-29 | 2010-01-20 | 华为技术有限公司 | Method and device for selecting the signaling route of the different service messages |
| CN106937351B (en) * | 2015-12-29 | 2020-04-17 | 中国移动通信集团公司 | Session realization method and core network element |
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Non-Patent Citations (2)
| Title |
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| 七号信令网关及其新发展. 张林，王芙蓉.广西通信技术，第4期. 2004 |
| 七号信令网关及其新发展. 张林，王芙蓉.广西通信技术，第4期. 2004 * |
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