CN1463124A - Method for realizing signaling transit point in IP domain of user adaption layer in signaling network layer - Google Patents
Method for realizing signaling transit point in IP domain of user adaption layer in signaling network layer Download PDFInfo
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Abstract
The method includes following steps. (1) Data collocation is added in nodes on IP network, that is to say the information of target signaling points, which have no relationship of direct link to points in following table, in IP domain is added into the table of target signaling points maintained by user adaption layer M3UA in signaling network layer. (2) Based on the signaling information in the table of signaling points, available routes can be selected so as to realize signaling transit. Thus, IP network signaling point can be acted as IP network signaling transit point IPSTP. Comparing with prior art, the method makes signaling point in IP domain realize function of signaling transit point providing possibility of flexible building network for manager.
Description
Affiliated field
The present invention relates to a kind of method that realizes IP domain signaling transit point at the user adaptation layer of signaling network layer, exactly, relate to a kind of at broadband telecommunication network, next generation network (NGN, Next GenerationNetwork) network or wide and narrow strip intercommunication network utilize the user adaptation layer M3UA of signaling network layer to realize the method for IP domain signaling transit point, belong to Channel Technology and signaling system technical field with the signal form sign in the digital information transmission.
Background technology
As everyone knows, signaling system is the key technology of modern communication networks, also is the mutual common language of exchange message between each node in user and communication network and the communication network.Telecommunication apparatus is the key that guarantees the operation of communication network high reliability ground to the reliable transmission of signaling message.In conventional telecommunication network, there have been a series of standards and technical measures to guarantee the signaling system reliability of operation, as the present very ripe arrowband NO.7 signaling system that is used for.Along with the progressively maturation of IP packet network technologies, the advantage of IP packet network shows especially, and the IP packet network can be used for multiple business such as voice-bearer, data, image, multimedia.At present, traditional circuit-switched network and packet network are in fusing stage, for realizing the intercommunication of legacy circuit-switched networks network and IP packet network, the demand of circuit switching signaling protocols such as ISDN, TUP, SCCP signaling occurred transmitting on IP network.In order to satisfy demand in IP network transmitting signaling agreement, internet engineering task group (IETF) is set up a special signaling transmission group, (SIGTRAN, SignallingTransport) the protocol suite support is by IP network transmission circuit exchange of signaling in the signaling transmission that they formulated.Interlayer standard primitives interface in the definition of SIGTRAN stack support circuit-switched signaling protocol hierarchical mode, thereby guarantee existing circuit switching signaling can unmodified ground use, the IP host-host protocol that also utilizes simultaneously standard satisfies the special transmission requirement of circuit switching signaling as the transmission bottom by the function that increases self.The SIGTRAN stack is made up of three parts, as shown in Figure 1: promptly the specific high-rise circuit switching signaling (SCCP, TUP, ISUP, BICC) of being carried is carried out the adaptive sublayer of adaptive signaling; The general signaling transfer protocol that is used for IP network guarantees the general transmission layer (can be SCTP SCTP, TCP or UDP) of reliable, the sequential delivery of signaling message; And IP layer.The SIGTRAN of standard comprises three parts of Fig. 1.
And the User Part from the No.7 signalling system overall structure (TUP, ISUP, SCCP), Message Transfer Part (MTP, Message Transfer Part) is the passage that a message is transmitted, is used to guarantee reliably, like clockwork the message of User Part passed to the User Part of destination signaling point.Message Transfer Part MTP comprises signaling data link layer MTP1, signaling link layer MTP2 and three parts of signaling network layer MTP3.M3UA is a MTP3-User Adaptation Layer agreement in the signaling transfer protocol (SIGTRAN), and it is adaptive is interface primitive between MTP3 and the MTP3 upper-layer user.M3UA is mainly used in intercommunication that realizes NO.7 and IP network and the subscriber signaling message of carrying arrowband MTP3 on IP network.M3UA has two kinds of basic typical networking modes: SGP-ASP pattern (as shown in Figure 2) and IPSP-IPSP pattern (as shown in Figure 3).
Referring to Fig. 2, in the networking of M3UA, SGW SG is a Xin Lingdaili, can be at IP network edge reception/transmission switched circuit network SCN interior signaling.SGW SG function in the SS7-Internet gateway comprises relaying, translation or the termination of SS7 signaling, and its function also can coexist as in the media gateway MG equipment with media gateway MG function, handles device-dependent SCN signaling.Media gateway controller MGC is responsible for handling registration and the management that media gateway MG goes up resource.For the signaling transmission, media gateway controller MGC has termination and initiates the function of SCN signaling protocol.Usually media gateway controller MGC is an autonomous device, can move one or more application server process ASP (or IP Server Process IPSP) on the media gateway controller MGC equipment.One or more ASP processes (or IPSP) process on one or more MGC equipment can be one or more application server AS services.Application server (AS:Application Server) is a logic entity, represents certain resource or business.For example: AS can be the virtual switch unit of call business of handling the PSTN repeat circuit of certain limit, also can be the virtual data library unit of handling certain inquiry transaction.And application server process ASP and IP Server Process IPSP are the processes for AS service, both function with all be the same in essence, just in different network models, be called different names.For unified narration and convenient understanding, in the present invention, IPSP and ASP are of equal value, and all " ASP " that occur in the IPSP-IPSP networking model follow " IPSP " to have identical implication.
No matter M3UA is used for which side of SGP-ASP pattern or IPSP-IPSP pattern, and M3UA needs to guarantee that the interface between original MTP3 and the upper-layer user is constant.Fig. 4 is SGP-ASP modal sets pessimistic concurrency control and the protocol stack structure signal of M3UA.Fig. 5 then is IPSP-IPSP modal sets pessimistic concurrency control and the protocol stack structure signal of M3UA.Fig. 6, Fig. 7 are respectively typical SGP-ASP network model and the classical ip SP-IPSP network models of M3UA.Heavy line in Fig. 6, Fig. 7 represents that SCTP connects, and dotted line is represented service relation, and chain-dotted line is then represented membership credentials.No matter under the SGP-ASP network model, still under the IPSP-IPSP network model, the routing when M3UA sends data all includes the content of two aspects.Routing process when below different network models being set forth its data transmission respectively.
Wherein the routing process of SGP-ASP network model is:
(1) at signaling gateway process (SGP, Signalling Gateway Process) side, for the MTP3 user message of receiving from the arrowband No. 7 signaling network is sent to correct IP network node, SGP must realize the proper messages distribution function from the entrained information of the Signaling System Number 7 MTP3 user message of receiving.For this reason, SGP must possess " the Network address translators table " that following function: SGP must be responsible for maintenance application server processes ASP side, comprise application server (AS, Application Server) information table and application server process (ASP, Application Server Process) information table.SGP should be able to transmit the entrained information of MTP3 user message (as the combination of network identity NI+ Original Signaling Point OPC+ destination signaling point DPC+ service identification SI+ circuit identification code CIC+ type families system SSN) according to the No. 7 signaling network of receiving, compare with the route key (Routing Key) that points to application server AS, obtain corresponding AS.Because AS is made of one group of application server process ASP, so SGP must determine concrete processing entities application server process ASP according to the current state of Business Processing mode (active and standby/load sharing) between the ASP that forms AS and ASP (activate/go disappear activations, preparation activation/preparation go to disappear activation etc.).After determining concrete ASP, just determined a flow transmission control protocol (SCTP constituting jointly by SGP and ASP, Stream ControlTransport Protocol) connection selects a stream to send data to the IP network node according to concrete algorithm then.
(2) in the ASP side, for the MTP3 user message that the upper-layer user from ASP side M3UA is received sends to suitable No. 7 signaling network node, ASP must realize the proper messages distribution function from the entrained information of the MTP3 user message of receiving.For this reason, ASP must possess following function: ASP must be responsible for safeguarding opposite end " Network address translators table ", comprising: the state of No. 7 signaling network destination signaling point, SG information table and SGP information table.ASP is by resolving the MTP3 user message that comes from the upper-layer user, obtain the entrained destination signaling point (DPC of this user message, Destination Point Code), and according to the various information in " the Network address translators table " of ASP maintenance management: as the state of DPC (by reaching of different SG, unreachable, limited transmission, congestion situation), the upstate situation of SG is (at existing M3UA, as long as connecting, sets up SCTP, ASP just thinks that SG is available), Business Processing mode between the SG (active/standby mode or load sharing mode) and signaling link selection (SLS, Signalling link select): or circuit identification code (CIC, Circuit Identifier Code) value is selected an available SG according to certain algorithm again.If the Business Processing mode between the SG is an active/standby mode, then select the main SG that uses; If the Business Processing mode between the SG is the load sharing mode, then according to the value of SLS or CIC, and certain algorithm selects an available SG, but needs to guarantee professional equally loaded between different SG.
Because SG is made of one group of SGP, therefore whether ASP must can manage business according to the current state of the Business Processing mode (active and standby/load sharing) of SGP, SGP and (depend primarily on whether the ASP state that connects with it is ACTIVE, if the ACTIVE state thinks that then this SGP can manage business), the value of SLS or CIC and determine concrete processing entities SGP according to certain algorithm.If the Business Processing mode between the SGP that constitutes SG is an active/standby mode, select the main SGP that uses; If the Business Processing mode between the SGP is the load sharing mode, then selects an available SGP, but need to guarantee professional equally loaded between different SGP according to value and certain algorithm of SLS or CIC.After determining concrete SGP, just determined to be connected by the SCTP that SGP and ASP constitute jointly, select a stream to send data to the SS7 network node according to concrete algorithm then.
And the routing process under the IPSP-IPSP of M3UA network model is:
It is the same catching up with the routing process of stating SG side in the SG-ASP network model at the routing process of IPSP-IPSP network model, promptly selects AS to select ASP more earlier.Different only is: the latter receives from the upper-layer user that in the SG side message that mails to the IP network node is next from No. 7 signaling network; And the former receives that from the upper-layer user message that mails to the IP network node is to come from the IP network at this IPSP place in the IPSP side.But no matter be in the SGP side or in the IPSP side, M3UA is for receiving that from the upper-layer user Message Processing that mails to IP network all is the same.Therefore the data of SGP-ASP network model distribution routing function is fit to the network model of IPSP-IPSP equally.So the routing of M3UA can be divided into two classes:
(1) selects AS earlier, select ASP again.Because this routing process is that the SGP side realizes under IPSP-IPSP network model and SGP-ASP network model,, usually this routing process is referred to as the routing process of SGP/IPSP side in order to narrate conveniently.
(2) select SG earlier, select SGP again.Because this routing process is that the ASP side realizes under the SGP-ASP network model,, usually this routing process is referred to as the routing process of ASP side in order to narrate conveniently.
Since the resource that the application server AS representative is certain, and application server process ASP is the process instance of AS.For defective and the concrete technical scheme of the present invention that can set forth prior art clearly, the present invention regards the AS resource that ASP handles as a signalling point: local terminal AS calls local signaling point, and destination AS is called destination signaling point.In IP network, between SG and the AS or the route between local AS and the far-end AS be referred to as the M3UA route, all SGP-ASP of this certain SG-AS or local AS-far-end AS or the SCTP between the IPSP-IPSP connected be referred to as the M3UA link.
In existing M3UA technology, no matter be SGP-ASP networking mode or IPSP-IPSP networking mode, all there are following two shortcomings:
(1) can not realize that the signalling point in the IP network has signaling transfer point: because no matter be SG or MGC, in order correctly to realize function of data distribution, select correct AS and ASP, data are correctly sent to the destination signaling point of expectation, must safeguard complete destination signaling point information table and M3UA route information table.But under existing M3UA technology and data configuration, all be the final purpose point relative this SG of all destination signaling points that SG and MGC safeguard or the MGC, they are with all being that direct connection concerns between SG and the MGC.Therefore SG and MGC only safeguard the IP network destination signaling point that the direct connection relation is arranged with it.Under prior art and data configuration management, if the M3UA of SG or MGC receives the message that sends IP network, M3UA just according to the purpose information table of the entrained destination signaling point DPC of message and its maintenance relatively, if there is not occurrence, represents that then this message is invalid; Otherwise, obtain the required destination signaling point that mails to of this message, in all available routes that arrive this destination signaling point, select an available route then and come bearer service.Because destination signaling point information in SG and MGC Destination Signaling Point Table all is the signalling point that the direct connection relation is arranged with them, so the destination signaling point that obtains at SG or MGC all is the terminal note on the IP network territory.Therefore under existing M3UA technology, the signalling point in all IP territories does not all have signaling transfer point, can not be as the Signalling Transfer Point in IP territory.That is to say that under prior art, in network model shown in Figure 8, IPSEP2 can not realize the signal switching function, promptly the message from IPSEP1 can only arrive IPSEP2, and can not be forwarded to IPSEP3 by IPSEP2.Equally, the message of IPSEP3 also can only arrive IPSEP2, can not be forwarded to IPSEP1 by IPSEP2.
(2) if the signalling point on the IP territory is many, because all destination signaling points that SG and MGC safeguard all are that direct connection relations I P network node is arranged with it, and the signalling point of SG and MGC maintenance is many again, will cause networking mode more stiff, dumb like this, increases the cost of investment of operator.In addition, have only a direct connection route, therefore can not guarantee network security really owing to arrive purpose IP network node by certain IP network node.
Summary of the invention
The purpose of this invention is to provide a kind of method that realizes IP domain signaling transit point at the user adaptation layer of signaling network layer, make signaling node on the IP territory can realize the function of Signalling Transfer Point, thereby all signalling points that solve in the present IP territory all do not have signaling transfer point, can not be as the defective of the Signalling Transfer Point in IP territory, make that operator can flexible networking, reduce cost of investment, and guarantee network security.
The object of the present invention is achieved like this: a kind of method at the user adaptation layer realization IP of signaling network layer domain signaling transit point is characterized in that:
(1) on the IP network node, increases data configuration, promptly in the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer safeguards, increase the information that does not have the IP territory destination signaling point of direct connection relation with it;
(2) route that can use according to the signalling point Information Selection in this Destination Signaling Point Table realizes signal switching.
The information of the IP territory destination signaling point that does not have the direct connection relation with it that in the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer safeguards, increases in described (1) step be meant all need with the information of the mutual IP territory network node of this network node.
In the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer safeguards, not only include the adjacent signaling points information that the direct connection relation is arranged with this network node in described (1) step, also comprise with this network node be not that direct connection is relation, non-adjacent destination signaling point information.
The IP network node of described increase data configuration comprises SGW SG and application server AS.
Described application server AS has one or more application server process ASP or IP service processes IPSP.
Described (2) step further includes the following step:
(A) according to receiving information entrained in the message, the Destination Signaling Point Table of safeguarding with M3UA compares, if do not find occurrence, illustrates that then this message is invalid, abandons and does not handle, and finishes its routing process; If find corresponding occurrence, then obtain corresponding target signalling point or IP network node number, proceed following operation;
(B), from many routes that can arrive this IP network node, select wherein available route according to the destination signaling point or the IP network node number that obtain;
(C) according to this available route, obtain the adjacent destination signaling point or the adjacent IP network node of this route, again message is sent to this adjacent IP network node or destination signaling point, by this adjacent IP network node message is handled;
(D) continue above-mentioned processing procedure, until the purpose IP network node that this message is sent to expectation.
The information entrained in the message of receiving in described (A) step is the combination of network identity NI, Original Signaling Point OPC, destination signaling point DPC, service identification SI, circuit identification code CIC and type families system SSN.
The information entrained in the message of receiving in described (A) step includes network identity NI, Original Signaling Point OPC and destination signaling point DPC at least, and all the other information then are optional.
The processing procedure of the message of sending from other IP network node being carried out by this adjacent IP network node in described (C) step is: the point coding of the adjacent IP network node with this of entrained destination signaling point DPC that will obtain from this message compares, if both point codings equate, illustrate that then the purpose IP network node that this message will mail to has the direct connection relation with SGW SG or IP service processes IPSP, directly handled by this adjacent IP network node: this adjacent IP network node is packaged into the upper-layer user that M3UA given in corresponding primitive to the message of receiving; If both point codings are unequal, illustrate that then the purpose IP network node that this message will mail to need transmit as Signalling Transfer Point by this adjacent IP network node.
The process that described this adjacent IP network node is transmitted the message of the purpose IP network node that will mail to as Signalling Transfer Point is: this adjacent IP network node compares the Destination Signaling Point Table of the destination signaling point DPC information that obtains and its maintenance from message, if do not find occurrence, illustrate that the message that this adjacent IP network node is received is invalid, then abandon it, finish this routing process; Otherwise select a route that can arrive this message expectation destination signaling point that message is sent.
Main feature of the present invention is by increasing the data configuration of IP network node (comprise SGW SG, have the application server AS of one or more application server process ASP or IP Server Process IPSP), the IP network node can be safeguarded the direct connection relation is arranged with it or do not have the information of signalling point on the IP territory of direct connection relation.Like this, this IP network node does not just need to set up the direct connection relation with the mutual IP domain signaling point of other all expectations, but the signalling point that can have forwarding capability by on the IP territory some is the IP network node of forwards to expectation, thereby realizes the function that the signaling node on the IP territory serves as the IP signaling transit point.Because the IP network node can serve as the IP network transit point, realize the signaling transfer point of IP network node, different IP networks operator just can carry out flexible networking according to actual conditions, reduces cost of investment.Simultaneously, owing to flexible configuration, can select to arrive the destination signaling point of IP network, thereby increase the fail safe of network via many different routes by data.
Description of drawings
Fig. 1 is the protocol stack structure schematic diagram of signaling transfer protocol.
Fig. 2 is a SG-ASP network model structural representation.
Fig. 3 is an IPSP-IPSP network model structural representation.
Fig. 4 is SGP-ASP modal sets pessimistic concurrency control and the protocol stack structure schematic diagram of M3UA.
Fig. 5 is IPSP-IPSP modal sets pessimistic concurrency control and the protocol stack structure schematic diagram of M3UA.
Fig. 6 is the structural representation of the representative network tissue (SGP-ASP network model) of M3UA.
Fig. 7 is the structural representation of the representative network tissue (IPSP-IPSP network model) of M3UA.
Fig. 8 is the IP territory network model schematic diagram in the user adaptation layer M3UA of signaling network layer.
Fig. 9 be of the present invention in the user adaptation layer M3UA of signaling network layer the IP network node serve as the networking embodiment schematic diagram of Signalling Transfer Point.
Embodiment
The present invention is a kind of method at the user adaptation layer realization IP of signaling network layer domain signaling transit point, and it comprises the following steps:
(1) on the IP network node, increases data configuration, promptly in the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer safeguards, increase the information that does not have the IP territory destination signaling point of direct connection relation with it; The information of the IP territory destination signaling point that does not have the direct connection relation with it that increases here be meant all need with the information of the mutual IP territory network node of this network node.Therefore, in the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer of the present invention safeguards, not only include the adjacent signaling points information that the direct connection relation is arranged with this network node, also comprise with this network node be not direct connection relation, non-adjacent destination signaling point information, i.e. the IP network nodal information that can transmit by some IP network node.
(2) according to the method for the selection route of the user adaptation layer M3UA of the signaling network layer of SGW SG or media gateway controller MGC, make the IP network signalling point realize the signal switching function, thereby make the IP network signalling point can serve as IP network Signalling Transfer Point IPSTP.The method of above-mentioned selection route of the present invention is identical with traditional selection method for routing, and it includes the following step:
(A) according to receiving that (this information is the combination of network identity NI, Original Signaling Point OPC, destination signaling point DPC, service identification SI, circuit identification code CIC and type families system SSN to information entrained in the message, but comprise network identity NI, Original Signaling Point OPC and destination signaling point DPC at least, all the other information are optional), the Destination Signaling Point Table of safeguarding with M3UA compares, if do not find occurrence, illustrate that then this message is invalid, abandon and do not handle, finish its routing process; If find corresponding occurrence, then obtain corresponding target signalling point or IP network node number, proceed following operation.That is to say,, need to transmit by other IP network node when certain IP network node need send a message to when not having other IP network node of direct connection relation with it.The entrained destination signaling point DPC of this message this moment is the destination signaling point sign indicating number DPC that does not have the direct connection relation with it that source IP network node expectation is mail to, rather than the adjacent destination signaling point sign indicating number of direct connection relation is arranged with it.But this message can be transmitted by the adjacent IP network node that the direct connection relation is arranged with it.When adjacent IP network node is received the message that mails to other IP network node, can find the list item of coupling when searching the Destination Signaling Point Table of its maintenance, obtain the destination signaling point number of coupling, thereby carry out following operation, rather than message is simply abandoned.
(B), from many routes that can arrive this IP network node, select wherein available route according to the destination signaling point or the IP network node number that obtain.
(C) according to this available route, obtain the adjacent destination signaling point or the adjacent IP network node of this route, again message is sent to this adjacent IP network node or destination signaling point, by this adjacent IP network node message is handled.
This processing procedure is: the point coding of the adjacent IP network node with this of entrained destination signaling point DPC that will obtain from this message compares, if both point codings equate, illustrate that then the purpose IP network node that this message will mail to has the direct connection relation with SGW SG or media gateway controller MGC, do not need to transmit, and directly handle: be packaged into the upper-layer user that M3UA given in corresponding primitive by it by this adjacent IP network node by this adjacent IP network node; If both point codings are unequal, illustrate that then the purpose IP network node that this message will mail to need transmit as Signalling Transfer Point by this adjacent IP network node.
This repeating process is: this adjacent IP network node compares the Destination Signaling Point Table of the destination signaling point DPC information that obtains and its maintenance from message, if do not find occurrence, illustrate that the message that this adjacent IP network node is received is invalid, then abandon it, finish this routing process; Otherwise select a route that can arrive this message expectation destination signaling point that message is sent.
(D) continue above-mentioned processing procedure, until the purpose IP network node that this message is sent to expectation.
Referring to Fig. 9, use method of the present invention, in IP network, network node IPSEP4 can adopt the route of three kinds of different modes to arrive same destination signaling point or network node IPSEP5, that is to say, network node IPSEP4 can transmit by the network node IPSTP1 with signaling transfer point and arrive destination signaling point IPSEP5, also can transmit by the network node IPSTP2 with signaling transfer point and arrive destination signaling point IPSEP5, can also arrive IPSEP5 by the direct connection route.
This shows, use the present invention, both can send to other IP network node that does not have the direct connection relation with this IP network node to message, also can receive processing does not have other IP network node of direct connection relation from other and this IP network node message.This signaling transfer point has also increased the fail safe of network for the networking of IP network provides flexibility, convenience.
Claims (10)
1, a kind of method that realizes IP domain signaling transit point at the user adaptation layer of signaling network layer, it is characterized in that: (1) increases data configuration on the IP network node, promptly increases the information that does not have the IP territory destination signaling point of direct connection relation with it in the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer safeguards;
(2) route that can use according to the signalling point Information Selection in this Destination Signaling Point Table realizes signal switching.
2, a kind of user adaptation layer at the signaling network layer according to claim 1 is realized the method for IP domain signaling transit point, it is characterized in that: the information of the IP territory destination signaling point that does not have the direct connection relation with it that in the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer safeguards, increases in described (1) step be meant all need with the information of the mutual IP territory network node of this network node.
3, a kind of method that realizes IP domain signaling transit point at the user adaptation layer of signaling network layer according to claim 1 and 2, it is characterized in that: in the Destination Signaling Point Table that the user adaptation layer M3UA of signaling network layer safeguards, not only include the adjacent signaling points information that the direct connection relation is arranged with this network node in described (1) step, also comprise with this network node be not that direct connection is relation, non-adjacent destination signaling point information.
4, a kind of method at the user adaptation layer realization IP of signaling network layer domain signaling transit point according to claim 1, it is characterized in that: the IP network node of described increase data configuration comprises SGW SG and application server AS.
5, a kind of method at the user adaptation layer realization IP of signaling network layer domain signaling transit point according to claim 4, it is characterized in that: described application server AS has one or more application server process ASP or IP service processes IPSP.
6, a kind of method according to claim 1 at the user adaptation layer realization IP of signaling network layer domain signaling transit point, it is characterized in that: described (2) step further includes the following step:
(A) according to receiving information entrained in the message, the Destination Signaling Point Table of safeguarding with M3UA compares, if do not find occurrence, illustrates that then this message is invalid, abandons and does not handle, and finishes its routing process; If find corresponding occurrence, then obtain corresponding target signalling point or IP network node number, proceed following operation;
(B), from many routes that can arrive this IP network node, select wherein available route according to the destination signaling point or the IP network node number that obtain;
(C) according to this available route, obtain the adjacent destination signaling point or the adjacent IP network node of this route, again message is sent to this adjacent IP network node or destination signaling point, by this adjacent IP network node message is handled;
(D) continue above-mentioned processing procedure, until the purpose IP network node that this message is sent to expectation.
7, a kind of method at the user adaptation layer realization IP of signaling network layer domain signaling transit point according to claim 6, it is characterized in that: the information entrained in the message of receiving in described (A) step is the combination of network identity NI, Original Signaling Point OPC, destination signaling point DPC, service identification SI, circuit identification code CIC and type families system SSN.
8, a kind of method that realizes IP domain signaling transit point at the user adaptation layer of signaling network layer according to claim 7, it is characterized in that: the information entrained in the message of receiving in described (A) step includes network identity NI, Original Signaling Point OPC and destination signaling point DPC at least, and all the other information then are optional.
9, a kind of method that realizes IP domain signaling transit point at the user adaptation layer of signaling network layer according to claim 6, it is characterized in that: the processing procedure of the message of sending from other IP network node being carried out by this adjacent IP network node in described (C) step is: the point coding of the adjacent IP network node with this of entrained destination signaling point DPC that will obtain from this message compares, if both point codings equate, illustrate that then the purpose IP network node that this message will mail to has the direct connection relation with SGW SG or IP service processes IPSP, directly handled by this adjacent IP network node: this adjacent IP network node is packaged into the upper-layer user that M3UA given in corresponding primitive to the message of receiving; If both point codings are unequal, illustrate that then the purpose IP network node that this message will mail to need transmit as Signalling Transfer Point by this adjacent IP network node.
10, a kind of method that realizes IP domain signaling transit point at the user adaptation layer of signaling network layer according to claim 9, it is characterized in that: the process that described this adjacent IP network node is transmitted the message of the purpose IP network node that will mail to as Signalling Transfer Point is: this adjacent IP network node compares the Destination Signaling Point Table of the destination signaling point DPC information that obtains and its maintenance from message, if do not find occurrence, illustrate that the message that this adjacent IP network node is received is invalid, then abandon it, finish this routing process; Otherwise select a route that can arrive this message expectation destination signaling point that message is sent.
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| WO2007048298A1 (en) | 2005-10-26 | 2007-05-03 | Huawei Technologies Co., Ltd. | Method for transferring destination user part unaivailable message |
| WO2009033393A1 (en) * | 2007-09-05 | 2009-03-19 | Huawei Technologies Co., Ltd. | Network, device and message transmission method based on message transmission part 3 user adaption layer m3ua |
| CN101043474B (en) * | 2006-06-29 | 2010-05-12 | 华为技术有限公司 | Method and apparatus for analyzing AS index |
| CN101800753A (en) * | 2010-03-16 | 2010-08-11 | 中国电子科技集团公司第三十研究所 | Comprehensive safety protecting method based on integral network safety service framework |
| CN1965595B (en) * | 2004-04-21 | 2010-09-22 | 阿尔卡特无线技术公司 | Restrictive and preferential routing in a distributed mobile switching center environment |
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| CN104683234A (en) * | 2013-12-02 | 2015-06-03 | 北京信威通信技术股份有限公司 | Communication network equipment routing method and device |
| CN106161136A (en) * | 2015-04-24 | 2016-11-23 | 深圳市恒扬数据股份有限公司 | Signaling System Number 7 link obtains the method and system of speech channel numbering automatically |
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| CN101369974B (en) * | 2008-09-28 | 2011-01-05 | 中兴通讯股份有限公司 | Method and device for network grouping and message forwarding by using M3UA protocol |
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2002
- 2002-05-28 CN CNB021179905A patent/CN1219388C/en not_active Expired - Fee Related
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| CN1965595B (en) * | 2004-04-21 | 2010-09-22 | 阿尔卡特无线技术公司 | Restrictive and preferential routing in a distributed mobile switching center environment |
| CN100452781C (en) * | 2005-10-26 | 2009-01-14 | 华为技术有限公司 | Method for transmitting partial unavailable information to destination user |
| US7882242B2 (en) | 2005-10-26 | 2011-02-01 | Huawei Technologies Co., Ltd. | Method for transmitting destination user part unavailable message |
| WO2007048298A1 (en) | 2005-10-26 | 2007-05-03 | Huawei Technologies Co., Ltd. | Method for transferring destination user part unaivailable message |
| CN101043474B (en) * | 2006-06-29 | 2010-05-12 | 华为技术有限公司 | Method and apparatus for analyzing AS index |
| CN101207564B (en) * | 2006-12-21 | 2011-05-25 | 中兴通讯股份有限公司 | Method for extending M3UA route supervision function |
| CN101094191B (en) * | 2007-08-15 | 2011-07-13 | 中兴通讯股份有限公司 | Method for raising reliability of M3UA signaling route |
| WO2009033393A1 (en) * | 2007-09-05 | 2009-03-19 | Huawei Technologies Co., Ltd. | Network, device and message transmission method based on message transmission part 3 user adaption layer m3ua |
| CN101383840B (en) * | 2007-09-05 | 2011-12-21 | 华为技术有限公司 | Network, device and message transmitting method based on M3UA protocol networking |
| CN101800753A (en) * | 2010-03-16 | 2010-08-11 | 中国电子科技集团公司第三十研究所 | Comprehensive safety protecting method based on integral network safety service framework |
| CN101800753B (en) * | 2010-03-16 | 2012-07-18 | 中国电子科技集团公司第三十研究所 | Comprehensive safety protecting method based on integral network safety service framework |
| CN104683234A (en) * | 2013-12-02 | 2015-06-03 | 北京信威通信技术股份有限公司 | Communication network equipment routing method and device |
| CN104683234B (en) * | 2013-12-02 | 2018-01-19 | 北京信威通信技术股份有限公司 | A kind of communication network device method for routing and device |
| CN103716192B (en) * | 2013-12-31 | 2017-03-22 | 大连环宇移动科技有限公司 | Non-inductive series connection device based on virtual IP |
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