CN101184064A - Method and device for transmitting data spanning different protocols based network field - Google Patents
Method and device for transmitting data spanning different protocols based network field Download PDFInfo
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- CN101184064A CN101184064A CNA2007101609854A CN200710160985A CN101184064A CN 101184064 A CN101184064 A CN 101184064A CN A2007101609854 A CNA2007101609854 A CN A2007101609854A CN 200710160985 A CN200710160985 A CN 200710160985A CN 101184064 A CN101184064 A CN 101184064A
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Abstract
The invention discloses a method and an apparatus of data transfer across network domains based on different protocols, wherein, the method is applied in data transfer between signaling network 7 and signaling network controlling the message adaptation layer of part of the users based on the signaling connection of internet protocol (IP) domain, which comprises the following steps: a signaling gateway (SG) receives connection-oriented data message from feed-forward connection section established between the signaling network 7 or the SUA signaling networks based on IP domain, the message is ensured to be transmitted by crossing the signaling network 7 or the SUA signaling network based on IP domain according to the object user address carried by the message, the message is realized the SUA protocol conversion or the SCCP protocol conversion; the feed-back connection section corresponding to the feed-forward connection section is confirmed by the SG according to the saved information of the connection section, then the protocol converted message is transferred through the feed-forward connection section. The method and the apparatus provided by the invention realize the data transfer across network domains based on different protocols.
Description
Technical field
The present invention relates to the method for transmission data in communication system, particularly a kind of method and device of striding based on the network domains transmission data of different agreement.
Background technology
In communication system, the transmission data have dual mode, a kind ofly be the passage that connects, Data-carrying in the connection data-message by the channel transfer that connects; Another kind is the passage that do not connect, and Data-carrying is not transmitted in having the data-message of connection.
Adopt SCCP (SCCP, Signalling Connection Control Part) the protocol signaling node can adopt above-mentioned dual mode transmission data, in this signaling node, SCCP can provide towards the transfer of data end to end of connection and connectionless-mode upper-layer protocol.Fig. 1 adopts the interior protocol stack schematic diagram of signaling node of SCCP for prior art, wherein, SCCP is arranged in the network and the transport layer functionality layer of signaling node, the calling and called address that SCCP can provide according to upper-layer protocol cooperates lower-layer protocols, i.e. message transfer part (MTP in the No.7 nation-wide Network, Message Tramsfer Part) function of message, finish the network routing addressing, SCCP also can be for after this signaling node connects or need not to connect, the transmission data.
Adopt signaling connection control part customer message adaptation layer (SUA, Signalling Control PartUser Adaptation Layer) the protocol signaling node also can adopt above-mentioned dual mode transmission data, this agreement is the agreement that adaption function is provided for the transmission of SCCP user message, be mainly used in based between the reciprocity signaling node in Internet protocol (IP, Internet Protocol) territory or based on transmission between the signaling node in IP territory and the SGW with SCCP User Agreement data carried by data.Fig. 2 adopts the protocol stack schematic diagram of SUA protocol signaling intranodal for prior art, wherein, the SUA agreement is arranged in the network and the transport layer functionality layer of signaling node, the calling and called address that the SUA agreement can provide according to upper-layer protocol cooperates lower-layer protocols, i.e. IP and SCTP (SCTP, Stream Control TransportProtocol) function, finish the network routing addressing, the SUA agreement also can be for after this signaling node connects or need not to connect, the transmission data.
As can be seen, adopt the signaling node of SCCP and adopt SUA protocol signaling node all seating surface to being connected and connectionless transfer of data.For connection-oriented transfer of data, need be according to origin station address and purpose station address, on one or more signaling nodes, set up an interface channel, this interface channel need comprise one or more linkage sections, i.e. connection between two nodes is called linkage section, like this, middle signaling node on this interface channel generally all needs to distribute two linkage sections, connection between the node that linkage section is this node and front, be called the forward connection section, another linkage section is the connection between the node of this node and back, be called the back to linkage section, also write down the linkage section information that these two linkage sections are associated on this node, follow-up just can carry out transmitted in both directions towards connecting data-message on this interface channel, and does not need to carry origin station address and purpose station address information again; For connectionless transfer of data, do not need the passage that connects, but in not having the data-message of connection, carrying origin station address and purpose station address information, signaling node is routed to the purpose signaling node according to origin station address and the purpose station address information that nothing connection data-message carries.
That describes a SCCP for example sets up process towards connection, suppose and between SCCP signaling user A and SCCP signaling user B, to connect, user A and user B belong to signaling node a and signaling node b respectively, then set up connection-oriented process to be:
SCCP user A sends connection request (N_ConnectReq) and gives signaling node a, and signaling node a is converted to CR with this request and sends to node b for this connection request distributes linkage section; After node b received CR, for it distributes linkage section, the destination of this CR of route discovery was this node in the process of distributing linkage section, this CR was converted to connect indication (N_ConnectInd), reported user B; User B loopback connection response (N_ConnectRes) sends to signaling node b, and signaling node b is converted to CC with this connection response and sends to signaling node a; After signaling node a receives, CC is converted to connect replys (N_ConnectCon) and report user A, so far finish towards connection, after connection-oriented interface channel is set up, SCCP user A just can with SCCP user B by sending mutually towards having connected data-message of having set up towards being connected.
The SUA agreement towards connect to set up and SCCP connection-oriented to set up process similar, just employing is that the SUA agreement is towards connection message.
At present, in order to realize No.7 nation-wide Network and based on the intercommunication between the SUA signaling network in IP territory, just in order to realize adopting the signaling node of SCCP and the intercommunication between the employing SUA protocol signaling node, introduced SGW (SG, Signalling Gateway), this SG is based on the SUA agreement.As shown in Figure 3, Fig. 3 is the signaling node of available technology adopting SCCP and the intercommunication configuration diagram between the employing SUA protocol signaling node, comprise the signaling node, SG and the employing SUA protocol signaling node that adopt SCCP, wherein, adopt the signaling node of SCCP to carry out the transmission of data by SG and employing SUA protocol signaling node.In the prior art, though proposed the framework of the transmitted data on network of striding different agreement of Fig. 3, also do not have narration how to utilize this framework to stride based on the network domains of different agreement at present and transmit data by the SG realization.
In the prior art, how just to have narrated the connect technology of passage at SG, promptly setting up two linkage sections at SG is associated, a linkage section inserts No.7 nation-wide Network, another linkage section inserts the SUA signaling network based on the IP territory, and this that passes through then to be set up connects the interface channel transmitting data information.
SG is in setting up the process that two linkage sections are associated, SG can distribute a link control module, the link information of two linkage sections of this controll block record, the message no matter SG receives is to send or local reception by linkage section, the resource that all need distribute the link information of two linkage sections at SG, in order to guarantee that SG can support the local reception and the forwards of a plurality of different messages of being received simultaneously, SG must be able to be respectively the link information of two linkage sections of each different messages record, with the forwards that satisfies each reception and the situation of local reception, and this just must make SG that more memory size is provided.That is to say, if SG under the certain situation of the memory size of self, can not transmit simultaneously more than memory size restriction have different interface channels towards connecting data-message, the SG treated side is reduced to the efficient that connects data-message.
After having set up interface channel at SG, how specifically to transmit the process towards the connection data-message of carrying data by interface channel, and how specifically need not to connect passage and directly Data-carrying is not being had the process that connects the data forwards, also there is not the explanation of correlation technique at present.
Summary of the invention
The embodiment of the invention provides a kind of method of striding based on the network domains transmission data of different agreement, and this method can realize striding the network domains transmission data based on different agreement.
The embodiment of the invention also provides a kind of network domains apparatus for transmitting data of striding based on different agreement, and this device can realize striding the network domains transmission data based on different agreement.
According to above-mentioned purpose, the technical scheme of the embodiment of the invention is achieved in that
A kind of method of striding based on the network domains section of connecting of different agreement, this method are applied in No.7 nation-wide Network and based on the section of connecting between the signaling connection control part customer message adaptation layer SUA signaling network in internet protocol IP territory, this method comprises:
SGW SG receives towards connection request from No.7 nation-wide Network or based on the SUA signaling network in IP territory, and the origin station address that carries according to this request distributes the forward connection section;
SG judges whether the purpose station address that this request is carried is the address of self, if, process ends then; If not, then the purpose station address that carries according to this request distributes the back to linkage section, and with forward connection section and back after linkage section shines upon, preserve the information of two linkage sections.
A kind of method of striding based on the network domains transmission data of different agreement, this method is applied between No.7 nation-wide Network and the SUA signaling network based on the IP territory transmits data, and this method comprises:
SG from No.7 nation-wide Network or SUA signaling network based on the IP territory between the forward connection section set up receive towards being connected data-message, the purpose station address that carries according to this message is determined to stride No.7 nation-wide Network or is transmitted this message based on the SUA signaling network in IP territory, this message is carried out the conversion of SUA agreement or SCCP;
SG determines the back to linkage section of this forward connection section correspondence according to the linkage section information of preserving, and sends by back this message after linkage section is with protocol conversion.
A kind of method of striding based on the network domains transmission data of different agreement, this method is applied between No.7 nation-wide Network and the SUA signaling network based on the IP territory transmits data, and this method comprises:
SG does not have the data-message of connection from No.7 nation-wide Network or based on the SUA signaling network reception in IP territory, the purpose station address that carries according to described message determines that described message will stride No.7 nation-wide Network or based on the SUA signaling network transmission in IP territory, this nothings connection data-message be carried out the conversion of SUA agreement or SCCP;
The purpose station address that carries according to described message carries out route, the nothing after the protocol conversion is connected data-message be routed to purpose reception signaling node.
A kind of network domains apparatus for transmitting data of striding based on different agreement, this device is applied between No.7 nation-wide Network and the SUA signaling network based on the IP territory and transmits data, this device comprises: routing function module, no linkage function module and towards the linkage function module, wherein
Towards the linkage function module, be used for according to from receive based on the SUA signaling network in IP territory or No.7 nation-wide Network towards connection request, distribute the forward connection section; Send to the routing function module with what receive towards connection request; Distribute the back behind linkage section according to the judged result of carrying out follow-up foundation that obtains from the routing function module, set up forward connection section and back mapping relations to linkage section; Perhaps will receive after connect data-message and carry out the conversion of SCCP or SUA agreement, send to linkage section by the back of setting up of forward connection section that receives this message that be mapped in;
No linkage function module is used for sending to the routing function module behind SUA signaling network or No.7 nation-wide Network reception nothing connection data-message based on the IP territory; After the nothing that receives connected data-message and carry out the conversion of SCCP or SUA agreement, send according to the route that obtains from the routing function module;
The routing function module is used for basis and determines towards connection request whether the destination of this request is described device from what receive towards the linkage function module, if not, the judged result that obtains carrying out follow-up foundation; Perhaps be used to receive the nothing connection data-message that no linkage function module sends, carry out route according to the purpose station address.
From such scheme as can be seen, method that the embodiment of the invention provides and device, can be in not having the data-message of connection with Data-carrying, transmit between by SG based on the SUA signaling network in IP territory and No.7 nation-wide Network, can also be with Data-carrying towards connecting in the data-message, between based on the SUA signaling network in IP territory and No.7 nation-wide Network, transmit by SG by the linkage section set up with mapping relations.In addition, the embodiment of the invention has been optimized the method for the existing section of connecting, make it when SG is the purpose station address, only set up the forward connection section, just do not need to set up two linkage sections, so just can save the memory size of SG, SG be improved handle quantity simultaneously, the SG treated side is improved to the efficient that connects data-message towards the connection data-message with different linkage sections.Therefore, the system that provides of the embodiment of the invention and device have realized striding the network domains transmission data based on different agreement.
Description of drawings
Fig. 1 adopts the interior protocol stack schematic diagram of signaling node of SCCP for prior art;
Fig. 2 adopts the protocol stack schematic diagram of SUA protocol signaling intranodal for prior art;
Fig. 3 is the signaling node of available technology adopting SCCP and the intercommunication configuration diagram between the employing SUA protocol signaling node;
Fig. 4 sets up the method flow diagram of transmission channel for embodiment of the invention SG;
Fig. 5 transmits method one flow chart towards the connection data-message of carrying data by the interface channel of setting up for embodiment of the invention SG;
Fig. 6 transmits the method two flow chart towards the connection data-message of carrying data by the interface channel of setting up for embodiment of the invention SG;
Fig. 7 does not have method one flow chart that connects data-message for embodiment of the invention SG transmission;
Fig. 8 does not have the method two flow chart that connects data-message for embodiment of the invention SG transmission
The SG schematic diagram that Fig. 9 provides for the embodiment of the invention;
Figure 10 is specific embodiment of the invention SG section of connecting and the method flow diagram of transmitting the SCCP data-message by the linkage section of setting up;
Figure 11 is embodiment of the invention SG section of connecting and the method flow diagram of transmitting SUA protocol data message by the linkage section of setting up;
Figure 12 directly transmits the method flow diagram of SCCP data-message for embodiment of the invention SG;
Figure 13 directly transmits the method flow diagram of SUA protocol data message for embodiment of the invention SG.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the embodiment of the invention is described in further detail below in conjunction with accompanying drawing.
In embodiments of the present invention, striding different agreement territory transmission data just is meant between No.7 nation-wide Network and the SUA signaling network based on the IP territory and transmits data.During data, can be divided into dual mode: first kind of mode is the passage that connects in transmission, by the interface channel transmission bearer set up data towards connecting data-message; The second way: directly Data-carrying is not transmitted in having the data-message of connection.Below adopt this dual mode to be elaborated respectively.
First kind of mode
For this mode, be divided into two kinds of situations: first kind is that SG receives after connecting data-message and no longer transmits, and promptly land this locality; Second kind is that SG receives after connecting data-message and transmits.For first kind of situation, SG is when connecting passage, just do not need to set up two linkage sections, be used for receiving plane and get final product and only need set up to the linkage section that connects data-message, at this moment SG for an interface channel towards connection message, the link information of the linkage section that distributes also has only the link information of a linkage section, so just can save the memory size of SG, SG is improved handle quantity simultaneously, the SG treated side is improved to the efficient that connects data-message towards the connection data-message with different interface channels.For second kind of situation, adopt prior art to handle and get final product.
Fig. 4 sets up the method flow diagram of transmission channel for embodiment of the invention SG, and its concrete steps are:
The origin station address that step 402, SG are carried according to this request distributes the forward connection section, promptly distributes to insert No.7 nation-wide Network or based on the linkage section of the SUA signaling network in IP territory;
The purpose station address that step 403, SG carry according to this request judges whether the address into self, if then do not need to distribute the back to linkage section, process ends; If not, execution in step 404 then;
The purpose station address that step 404, SG carry according to this request distributes the back to linkage section, after promptly distribute inserting linkage section based on the SUA signaling network in IP territory or No.7 nation-wide Network, after the linkage section that distributes with step 402 shines upon, the information of preserving these two linkage sections, execution in step 405;
In this step, when SG for after having distributed the linkage section and the linkage section between SG and the purpose user between a source user and the SG respectively, also can distribute the connection reference number respectively for these two linkage sections, be used to indicate linkage section, send when connecting data-message when playing source user or purpose user, can carry with SG between the corresponding corresponding linkage section of connection reference number indication of linkage section;
In this step, SG can adopt advice method to notify source user or purpose user to distribute and the reference number that is connected that plays linkage section between source user or the purpose user, also can by rise source user or purpose user from SG obtain the SG distribution with self between linkage section be connected reference number.
After protocol conversion is carried out in this request that step 405, SG will receive, send;
In this step, if towards connection request is SCCP connection request message, then be converted to SUA agreement connection request message and send to SUA signaling network based on the IP territory, by carrying out the distribution of linkage section according to prior art, up to the purpose signaling node based on the signaling node in the SUA signaling network in IP territory; If towards connection request is SUA agreement connection request message, then be converted to SCCP connection request message and send to No.7 nation-wide Network, carry out the distribution of linkage section by the signaling node in the No.7 nation-wide Network according to prior art, up to the purpose signaling node;
The destination that sends is the signaling node with purpose station address that this request carries;
Transmission channel just can have been transmitted data after setting up and finishing.
Fig. 5 is that the interface channel that embodiment of the invention SG passes through to set up is transmitted method one flow chart towards the connection data-message that carries data, and this flow process has been narrated No.7 nation-wide Network to the process of transmitting data based on the SUA signaling network in IP territory, and its concrete steps are:
In this step, can determine that this message will stride No.7 nation-wide Network and be forwarded to SUA signaling network based on the IP territory according to the purpose station address that this message is carried;
In this message, can carry the connection reference number of forward connection section, this connection reference number is generally the connection reference number of No.7 nation-wide Network to the linkage section between the SG, and this message is by sending to SG to the linkage section that should connect reference number.After SG receives this message,, determine that the back is to linkage section according to the linkage section information that is associated of self storing.
Towards to connect the data message conversion be the SUA agreement after connect data-message, the linkage section information of obtaining according to step 501 is forwarded in the SUA signaling network based on the IP territory by determined linkage section with this SCCP for step 502, SG.
In this step, SG is back to linkage section according to what determine, this message is sent (the connection reference number in this message is updated to SG to based on the back connection reference number to linkage section between the SUA signaling network in IP territory, sends to linkage section by the back).
Fig. 6 be embodiment of the invention SG by the interface channel of setting up transmit the carrying data towards the method two flow chart that connects data-message, this flow process has been narrated based on the SUA signaling network in the IP territory process to No.7 nation-wide Network transmission data, its concrete steps are:
In this step, can determine that the SUA signaling network that this message is striden based on the IP territory is forwarded to No.7 nation-wide Network according to the purpose station address that this message is carried;
In this message, can carry the connection reference number of forward connection section, this connection reference number is generally based on the SUA signaling network in the IP territory connection reference number to the linkage section between the SG, and this message is by sending to SG to the linkage section that should connect reference number.After SG receives this message,, determine that the back is to linkage section according to the linkage section information that is associated of self storing.
Towards to connect the data message conversion be at least one SCCP after connect data-message, the linkage section information according to step 601 is obtained is forwarded in the No.7 nation-wide Network by linkage section with this SUA agreement for step 602, SG.
In this step, SG is back to linkage section according to what determine, this message is sent (the connection reference number in this message is updated to SG back behind the connection reference number of linkage section to based between the SUA signaling network in IP territory, sends to linkage section by the back).
In this step; since the SUA agreement towards the data volume that connects the data message bearing greater than SCCP towards the data volume that connects the data message bearing; so when conversion, can be that many SCCP are towards connecting data-message towards connecting the data message conversion usually with the SUA agreement.
Describe for a specific example.
If send to Node B by node A by SG towards connecting data-message, the linkage section between node A and the SG is called the forward connection section, is that the back is to linkage section between SG and Node B.
Towards connecting data-message if mail to node A by Node B by SG, the linkage section between Node B and the SG is called the forward connection section, is that the back is to linkage section between SG and node A.
The SG receiving plane is determined corresponding forward link section according to the connection reference number in the message when connecting data-message, obtain the back to chained segment according to mapping relations, and this message is sent to linkage section by the back, carries the connection reference number of back to the linkage section correspondence.
The SG treated side is to determine linkage section by connecting reference parameter to connecting data-message, and linkage section can be kept in the link control module, and whether wherein can also preserve is cross-domain transmission.
The node of supposing this embodiment is A and B, is undertaken alternately by SG.
Node A------------------" SG-------------------" Node B
Reference number is that 10 reference numbers are that 200 reference numbers are 300
Reference number is 4000
[taking link control module of A] [taking two link control modules of SG]
[taking link control module of B]
Connect the process of setting up:
CR(10)----------------------》200--》CORE(300)------------------------》
10--200---300
《-----------------------CC(10,200)《-------------------------------COAK(300,4000)
10--200
10--200--300--4000
300--4000
Data transmit: A--" B
DT1(200)-------------------------------》CODT(4000)--------------------------------》
Data transmit: A "---B
DT1(10)《-------------------------DT1(10)《---------------------------------------CODT(300)
------------------------------------------------------------------------------------------------------------
Said process once is described: in a node, it is corresponding one by one that linkage section connects reference number with the distribution of this node, just determines ginseng number number just definite linkage section, can also preserve the linkage section information that is associated in this node.When SG obtains 200 connection reference number, just can connect reference number and find corresponding connection reference number 300, thereby obtain connecting the linkage section of reference number 300 correspondences from 200.
The reference number that is connected of the linkage section between node A and SG is (10,200), and the reference number that is connected of the linkage section between SG and B is (300,4000), and wherein two of SG reference numbers 200 are distributed being connected when setting up by SG with 300.
Node A sends when connecting data-message to Node B, node A will fill into 200 towards the connection reference number that connects in the data-message, when SG handles, find that 200 and 300 have mapping relations, 300 with Node B 4000 have mapping relations, so just definite message will be issued Node B, and the reference number in the message will make the connection reference number 4000 of Node B into.
The second way
Fig. 7 does not have method one flow chart that connects data-message for embodiment of the invention SG transmission, and this flow chart has been narrated No.7 nation-wide Network to the process of transmitting data based on the SUA signaling network in IP territory, and its concrete steps are:
In this embodiment, SG can determine the purpose user according to the purpose station address, learns that the purpose user is based on the user of the SUA signaling network in IP territory, thereby determines that this message will stride No.7 nation-wide Network and be forwarded in the SUA signaling network based on the IP territory;
Fig. 8 is that embodiment of the invention SG transmission do not have the method two flow chart that connects data-message, and this flow process has been narrated based on the SUA signaling network in the IP territory process to No.7 nation-wide Network transmission data, and its concrete steps are:
Step 801, SG do not have the connection data-message from the SUA agreement that the SUA signaling network based on the IP territory receives the carrying data, determine that according to the purpose station address that this data-message carries the SUA signaling network that this message will be striden based on the IP territory is forwarded in the No.7 nation-wide Network;
In this embodiment, SG can determine the purpose user according to the purpose station address, learns that the purpose user is based on the user of No.7 nation-wide Network, thereby determines that the SUA signaling network that this message will be striden based on the IP territory is forwarded in the No.7 nation-wide Network;
In this step, do not connect data-message if during segmented messages because the SUA agreement has, generally can have branch segment identification and indication from the sign as which segmentation, SG can not have the connection data-message according to the SUA agreement and whether carries the branch segment identification and judge.
It is after at least one SCCP does not have the data-message of connection that step 803, SG do not have the data of connection message conversion with this SUA agreement, do not have according to this SUA agreement and to connect purpose station address that data-message the carries SCCP after to conversion and do not have the data-message of connection and carry out route, be routed in the No.7 nation-wide Network.
In this step; because the SUA agreement does not have the data volume that connects the data message bearing and does not have the data volume that connects the data message bearing greater than SCCP; so when conversion, usually the SUA agreement can not being had the data of connection message conversion is that many SCCP do not have the connection data-message.
Process when specifically carrying out route is: article one SCCP after changing is not had the data-message of connection carry out sending on the purpose reception signaling node after the route, remaining SCCP does not have the connection data-message and sends on the purpose reception signaling node according to the routing iinformation that article one SCCP does not have the connection data-message.
In order to realize above-mentioned dual mode, the embodiment of the invention provides a kind of SGW SG, and as shown in Figure 9, this SG comprises routing function module, no linkage function module, towards linkage function module and management function module, wherein,
Towards the linkage function module, be used for according to from receive based on the SUA signaling network in IP territory or No.7 nation-wide Network towards connection request, distribute the forward connection section; Send to the routing function module with what receive towards connection request; Distribute the back behind linkage section according to the judged result of not carrying out follow-up foundation that obtains from the routing function module, set up forward connection section and back mapping relations to linkage section; Perhaps will receive after connect data-message and carry out the conversion of SCCP or SUA agreement, send to linkage section by the back of setting up of forward connection section that receives this message that be mapped in;
No linkage function module is used for sending to the routing function module behind SUA signaling network or No.7 nation-wide Network reception nothing connection data-message based on the IP territory; After the nothing that receives connected data-message and carry out the conversion of SCCP or SUA agreement, send according to the route that obtains from the routing function module;
The routing function module is used under the control of management function module according to determining towards connection request whether the destination of this request is described device from what receive towards the linkage function module, if not, the judged result of not carried out follow-up foundation; Perhaps be used under the control of management function module, receiving the nothing connection data-message that no linkage function module sends, carry out route according to the purpose station address.
The management function module is used for the route functional module is managed when carrying out the route processing.
In the present embodiment, this SG also can not comprise the management function module, gets final product and directly carry out above-mentioned functions by the routing function module.
In embodiments of the present invention, SG comprises cache module and SCCP modular converter towards the linkage function module, wherein, cache module, what be used for that buffer memory SCCP modular converter receives does not have the connection data-message for the SUA agreement of segmented messages; The SCCP modular converter, the SUA agreement that is used for being received as segmented messages does not have the data of connection message buffering to cache module, obtaining SUA agreement from article one segmented messages to a last segmented messages from cache module does not have group bag behind the data-message of connection, and being converted to many SCCP does not have the connection data-message.
From above-mentioned dual mode and the SG that provides as can be seen, the embodiment of the invention has following characteristics: 1) routing function among the SG, do not have linkage function and have linkage function organically to merge, avoided towards connecting data-message or not having the data-message of connection and in too much unit, transmit; 2) SG is when two linkage sections setting up based on the SUA signaling network in IP territory and No.7 nation-wide Network, do not need to carry out the strictness restriction, promptly do not need all to set up, but after independent separately the foundation, set up mapping relations again and form interface channel, promptly simplified complexity and improved efficient again; 3) when SG transmits towards the connection data-message, transmit by the interface channel of setting up; 4) SG at treated side when connecting data-message, employing be the mode of directly transmitting: SCCP towards connect the data message conversion be the SUA agreement towards connecting data-message, send then; The SUA agreement sends successively towards to connect the data message conversion be at least one SCCP after connect data-message; 5) SG does not have connection data message conversion SUA agreement for SCCP and does not have the mode that data-message adopts direct forwarding that connects when handling nothing connection data forwards; To connect the data message conversion be that not have what connect that data-message adopts be that being converted to SCCP did not again have the mode that connects the data forwards after SG did not have the data of connection message combinations to the SUA agreement of all segmentations to SCCP for not having for the SUA agreement of segmented messages; 6) SG transmits when connecting data-message, is different at the connection reference number that distributes based on the SUA signaling network or the No.7 nation-wide Network both sides in IP territory but is associated, and reason is that SG is respectively both sides and sets up separately linkage section; 7) the SUA agreement is converted into many SCCP at SG and sends towards connecting data-message towards connecting data-message, this be because SG to the SUA agreement towards connecting the mode that data-message has adopted segmentation to transmit; 8) SCCP data-message SG be forwarded be a SUA protocol data message (the SCCP data-message for towards connect data-message or for there not being the data-message of connection), this is because SG has adopted the mode of direct forwarding to the SCCP data-message; 9) the SUA agreement of segmentation does not have and connects data-message SG does not have the data of connection message groups bag to the SUA agreement of all segmentations after, and being converted to SCCP does not again have the data of connection forwards and go out.
From the 4th) point and the 5th) point is as can be seen, when forwarding is the SUA protocol data message of segmented messages, employing is towards connecting data-message and not having the pass-through mode that is connected data-message, have any different: not having the data of connection forwards needs elder generation SG does not have the data of connection message combinations to the SUA agreement of all segmentations after, and being converted to SCCP does not again have the data of connection forwards; Need not transmit again towards connecting data-message but directly be converted at least one SCCP towards connecting the data forwards at SG group bag.Why have this difference to be because: need be towards connecting data-message in the SG route, directly interface channel forwarding by setting up; Need be and there is not the data-message of connection in the SG route, the different segmented messages that connect data-message for fear of same nothing route repeatedly on SG, so after adopting SG that the SUA agreement of all segmentations is not had the data of connection message combinations, be converted to SCCP again and do not have the mode that connects the data forwards, SG only need carry out a route and gets final product like this, has simplified the processing procedure of SG.
The embodiment of the invention is divided on the basis in the function of not destroying original SCCP and SUA agreement, by connect passage with towards the conversion between the different agreement that is connected data-message, and finish and do not have the transmission that connects data-message, realized No.7 nation-wide Network and smoothly transmitted at SG, guaranteed No.7 nation-wide Network and not being connected data-message and on SG, carrying out alternately with having based on the SUA signaling network in IP territory towards being connected data-message based on the data-message of the SUA signaling network in IP territory.
Below lifting four specific embodiments is elaborated to the embodiment of the invention.
In following Figure 10~Figure 13, the routing function module table of SG is shown SCRC (Sccp/SuaRoute Control), is used to finish the routing function of message; Be shown SCOC (Sccp/Sua Connection-oriented Control) towards the linkage function module table, be used for treated side to connecting data-message; No linkage function module table is shown SCLC (Sccp/Sua connectionless Control), and being used for handling does not have the data-message of connection; SCCP is expressed as CR (ConnectionRequest) towards connecting data request information; SCCP is expressed as CC (ConnectionConfirm) towards connecting data-acknowledge message; SCCP is shown DT (Data) towards connecting the data message table; The SUA agreement is expressed as CORE (Connection Request) towards connecting data request information; The SUA agreement is expressed as COAK (Connection Acknowledge) towards connecting data-acknowledge message; The SUA agreement is shown CODT (Connection Oriented Data Transfer) towards connecting the data message table; SCCP does not have the unit data of connection message table and is shown UDT (Unitdata); SCCP does not have the enhancing of connection unit data message table and is shown XUDT (Exteded unitdata); SCCP does not have the long unit data message (LUDT, Long unitdata) of connection: the SUA agreement does not have connection data-message (CLDT, Connectionless Data Transfer).
When a certain signaling node receives behind connection request, SCOC will the section of connecting and is transferred to SCRC and carry out route and handle, route results has two kinds of situations: this information reporting is given the user of this signaling node, perhaps the user of the purpose signaling node of this message need be transmitted to the purpose signaling node.
Figure 10 transmits the method flow diagram of SCCP data-message for the specific embodiment of the invention SG section of connecting and by the linkage section of setting up, and its concrete steps are:
Step 1001, SG receive the CR of No.7 nation-wide Network, give SCOC and handle, and SCOC distributes the linkage section CB1 of No.7 nation-wide Network for it;
SCOC among step 1002, the SG gives SCRC with CR, know after the SCRC route that CR will send to SUA signaling network based on the IP territory after, CR is sent to SCOC;
The SCOC of step 1003, SG distributes the linkage section CB2 based on the SUA signaling network in IP territory;
The SCOC of step 1004, SG is converted to CORE with CR, sends to the SUA signaling network based on the IP territory;
Step 1005, send COAK to SG, give SCOC after SG receives and handle based on the purpose signaling node in the SUA signaling network in IP territory;
After step 1006, SCOC receive COAK message, be defined as CB1 and CB2 that SG distributes, and two linkage sections are associated, know that the COAK forwards is to No.7 nation-wide Network;
Step 1007, SCOC become CC with the COAK message conversion, send to No.7 nation-wide Network;
After originating node in step 1008, the No.7 nation-wide Network receives CC, set up successfully, send DT, after SG receives DT, give SCOC and handle towards connecting;
In this step, DT carries the connection reference number of CB1;
The CB1 that step 1009, SCOC are carried according to DT has a connection reference number, determines to determine the CB2 that is associated and need transmit DT by CB2;
When distributing CB1 and CB2, can, just can find the connection reference number to determine corresponding CB2 here respectively with connecting reference numbers identify according to the linkage section information of storage.
Step 1010, SCOC convert DT to CODT, send to SUA signaling network based on the IP territory by CB2.
What Figure 10 narrated is to distribute linkage section and forwarding towards the process that be connected data-message to the SUA signaling network based on the IP territory at SG from No.7 nation-wide Network, after step 1010, if do not re-use foundation towards connection, any one party in originating node and the destination node can send the release connection request, SG will discharge connection request and send to opposite side, the opposite side loopback discharges the request finished and gives SG, and then discharge that SG distributes towards connection, and finish the signaling node that Release complete is transmitted to the release connection request, so far finish towards connecting to discharge.
Figure 11 transmits the method flow diagram of SUA protocol data message for the embodiment of the invention SG section of connecting and by the linkage section of setting up, and its concrete steps are:
SCOC among step 1102, the SG gives SCRC with CORE, know after the SCRC route that CORE will send to No.7 nation-wide Network after, CORE is sent to SCOC;
The SCOC of step 1103, SG distributes the linkage section CB2 of No.7 nation-wide Network;
The SCOC of step 1104, SG is converted to CR with CORE, sends to No.7 nation-wide Network;
Purpose signaling node in step 1105, the No.7 nation-wide Network sends CC to SG, gives SCOC after SG receives and handles;
After step 1106, SCOC receive CC message, be defined as CB1 and CB2 that SG distributes, and two linkage sections are associated, know that the CC forwards is to No.7 nation-wide Network;
The connection reference number of the CB1 that step 1109, SCOC are carried according to CODT is determined the CB2 that is associated to determine that this CODT need send by the CB2 that is associated;
When distributing CB1 and CB2, can, just can find the connection reference number to determine corresponding CB2 here respectively with connecting reference numbers identify according to the linkage section information of storage.
Step 1110, SCOC are converted at least one DT with CODT, send to No.7 nation-wide Network by CB2 successively.
What Figure 11 narrated is to distribute linkage section and forwarding towards the process that be connected data-message to No.7 nation-wide Network at SG from the SUA signaling network based on the IP territory, after step 1110, if do not re-use foundation towards connection, any one party in originating node and the destination node can send the release connection request, SG will discharge connection request and send to opposite side, the opposite side loopback discharges the request finished and gives SG, and then discharge that SG distributes towards connection, and finish the signaling node that Release complete is transmitted to the release connection request, so far finish towards connecting to discharge.
Figure 12 is the method flow diagram that embodiment of the invention SG directly transmits the SCCP data-message, and its concrete steps are:
The SCLC of step 1202, SG sends to SCRC with UDT or XUDT or LUDT, after the SCRC route, knows that UDT or XUDT or LUDT will send to the SUA signaling network based on the IP territory, carries out route, and the UDT after the route or XUDT or LUDT are sent to SCLC;
The SCLC of step 1203, SG sends to the SUA signaling network based on the IP territory after UDT or XUDT or LUDT are converted to CLDT.
What Figure 12 narrated is not have the process that connects data-message from No.7 nation-wide Network to transmitting at SG based on the SUA signaling network in IP territory, after step 1203, originating node can be proceeded not have with destination node and be connected the data interacting message, but because SG does not need to connect for it distributes, SG is after being converted to CLDT with UDT or XUDT or LUDT, and directly the conversion back sends and getting final product.
Figure 13 is the method flow diagram that embodiment of the invention SG directly transmits SUA protocol data message, and its concrete steps are:
Step 1301, SG receive the first segmentation CLDT based on the SUA signaling network transmission in IP territory, give SCLC and handle;
The SCLC of step 1302, SG gives SCRC with the first segmentation CLDT, determines after the SCRC route that the first segmentation CLDT will send to No.7 nation-wide Network, sends it to SCLC after the route;
It is the first segmentation CLDT that the SCLC of step 1303, SG detects, and this CLDT is saved in the cache module;
Step 1304, SG receive the medial section CLDT based on the SUA signaling network in IP territory, give SCLC and handle;
First segmentation that step 1305, SCLC detect this medial section CLDT has been kept in the cache module, also is saved in this medial section CLDT in the cache module then;
According to step 1304~1305, SG receives some medial section CLDT based on the SUA signaling network in IP territory successively, giving SCLC successively handles, first segmentation that SCLC detects these some medial section CLDT successively has been kept in the cache module, should also be saved in the cache module by some medial section CLDT successively then;
Step 1306, SG receive the last segmentation CLDT based on the SUA signaling network in IP territory, give SCLC and handle;
Step 1307, SCLC also are saved in last segmented messages CLDT in the cache module, and SCLC detects this CLDT message and all receives, and assembling is kept at all the segmentation CLDT in the cache module;
Step 1308, SCLC are converted to many XUDT or LUDT (this is to adopt XUDT or LUDT according to purpose signaling node configuration decision) with the CLDT of assembling, are forwarded to successively on the purpose signaling node in signalling system No.7 territory.
What Figure 13 narrated is not have the process that connects data-message from transmitting at SG to No.7 nation-wide Network based on the SUA signaling network in IP territory, after step 1309, origin signaling node and purpose signaling node can be proceeded interacting message, and SG transmits after CLDT is converted to XUDT or LUDT again.
From above-mentioned narration as can be seen, method that the embodiment of the invention provides and device, the method of directly transmitting data between based on the SUA signaling network in IP territory and No.7 nation-wide Network that has proposed that prior art do not have, optimized prior art by the technology of SG foundation based on the SUA signaling network and the linkage section between the No.7 nation-wide Network in IP territory, and proposed not have in the prior art based on the method transmitted of the section of connecting, thereby realized based on not being connected the level and smooth forwarding of data-message on SG towards connecting data-message and not having between the SUA signaling network in IP territory and the signalling system No.7 wire side, guaranteed based between user in the SUA signaling network in IP territory and the user in the No.7 nation-wide Network alternately.Further, the embodiment of the invention is optimized prior art by the technology of SG foundation based on the SUA signaling network and the linkage section between the No.7 nation-wide Network in IP territory, promptly how data send to SG, then directly set up based on the SUA signaling network in IP territory or No.7 nation-wide Network forward connection section to SG, and no longer set up No.7 nation-wide Network or based on back to SG of the SUA signaling network in IP territory to linkage section, therefore, the embodiment of the invention has adopted the high linkage section method of salary distribution of memory size utilance for connection-oriented foundation, not only guaranteed also to have reduced the burden of SG simultaneously towards connecting the quick forwarding of data-message at SG.Further, the embodiment of the invention only needs route once for the SCCP message of the identical carrying data in the address of many clauses and subclauses, other need not route, thereby improved forwards efficient, it is consuming time to have reduced route.
One of ordinary skill in the art will appreciate that and realize the foregoing description method and system, step in SG is to instruct relevant hardware to finish by program, described program can be stored in the read/write memory medium of this equipment, and this program is carried out the corresponding step in the said method when carrying out.Described storage medium can be as ROM/RAM, magnetic disc, CD etc.
More than be explanation, in concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition method of the present invention to the specific embodiment of the invention.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.
Claims (12)
1. method of striding based on the network domains section of connecting of different agreement, it is characterized in that, this method is applied in No.7 nation-wide Network and based on the section of connecting between the signaling connection control part customer message adaptation layer SUA signaling network in internet protocol IP territory, this method comprises:
SGW SG receives towards connection request from No.7 nation-wide Network or based on the SUA signaling network in IP territory, and the origin station address that carries according to this request distributes the forward connection section;
SG judges whether the purpose station address that this request is carried is the address of self, if, process ends then; If not, then the purpose station address that carries according to this request distributes the back to linkage section, and with forward connection section and back after linkage section shines upon, preserve the information of two linkage sections.
2. the method for claim 1 is characterized in that, described distribution forward connection section or back comprise to linkage section: being that the forward connection section is distributed connects reference number, distributes to linkage section for the back to connect reference number, two of described distribution is connected reference numbers be associated.
3. method as claimed in claim 2 is characterized in that, after this method, also comprises:
SG receive by the forward connection section send towards connection request, the purpose station address that carries according to this request is determined to stride No.7 nation-wide Network or is transmitted this message based on the SUA signaling network in IP territory, this message is carried out the conversion of SCCP SCCP or SUA agreement;
SG determines the back to linkage section of this forward connection section correspondence according to the linkage section information of preserving, and sends by back this request after linkage section is with protocol conversion.
4. method as claimed in claim 3 is characterized in that, this message that described SG receives is also carried the connection reference number of forward connection section, and described SG also comprised before this message after the protocol conversion is sent:
The connection reference number of the forward connection section that this message after the protocol conversion is carried replaces with the connection reference number of back to linkage section.
5. a method of striding based on the network domains transmission data of different agreement is characterized in that this method is applied between No.7 nation-wide Network and the SUA signaling network based on the IP territory transmits data, and this method comprises:
SG from No.7 nation-wide Network or SUA signaling network based on the IP territory between the forward connection section set up receive towards being connected data-message, the purpose station address that carries according to this message is determined to stride No.7 nation-wide Network or is transmitted this message based on the SUA signaling network in IP territory, this message is carried out the conversion of SUA agreement or SCCP;
SG determines the back to linkage section of this forward connection section correspondence according to the linkage section information of preserving, and sends by back this message after linkage section is with protocol conversion.
6. method as claimed in claim 5 is characterized in that, this message that described SG receives is also carried the connection reference number of forward connection section, and described SG also comprised before this message after the protocol conversion is sent:
The connection reference number of the forward connection section that this message after the protocol conversion is carried replaces with the connection reference number of back to linkage section.
7. method as claimed in claim 5 is characterized in that, described this message is carried out being converted to of SCCP:
Be converted at least one SCCP towards connecting data-message;
Described being sent as: the SCCP with conversion sends towards connecting data-message successively.
8. a method of striding based on the network domains transmission data of different agreement is characterized in that this method is applied between No.7 nation-wide Network and the SUA signaling network based on the IP territory transmits data, and this method comprises:
SG does not have the data-message of connection from No.7 nation-wide Network or based on the SUA signaling network reception in IP territory, the purpose station address that carries according to described message determines that described message will stride No.7 nation-wide Network or based on the SUA signaling network transmission in IP territory, this nothings connection data-message be carried out the conversion of SUA agreement or SCCP;
The purpose station address that carries according to described message carries out route, the nothing after the protocol conversion is connected data-message be routed to purpose reception signaling node.
9. method as claimed in claim 8 is characterized in that, described this message is carried out being converted to of SCCP:
Be converted at least one SCCP towards connecting data-message;
The described purpose reception signaling node that is routed to is: article one SCCP after changing is not had the data-message of connection carry out sending on the purpose reception signaling node after the route, remaining SCCP does not have the connection data-message and sends on the purpose reception signaling node according to the route that article one SCCP does not have the connection data-message.
10. method as claimed in claim 9 is characterized in that, described is that at least one SCCP is towards the process that connects data-message with this message conversion:
Judge whether this message is segmented messages, if, this message of buffer memory then, continue all the other segmented messages that buffer memory receives, to the last a segmented messages receives, and with after all segmented messages assemblings, being converted to one or more SCCP does not have the connection data-message again; Otherwise directly this SUA agreement not being had the data of connection message conversion is that at least one SCCP does not have the connection data-message.
11. network domains apparatus for transmitting data of striding based on different agreement, it is characterized in that this device is applied between No.7 nation-wide Network and the SUA signaling network based on the IP territory and transmits data, this device comprises: routing function module, no linkage function module and towards the linkage function module, wherein
Towards the linkage function module, be used for according to from receive based on the SUA signaling network in IP territory or No.7 nation-wide Network towards connection request, distribute the forward connection section; Send to the routing function module with what receive towards connection request; Distribute the back behind linkage section according to the judged result of carrying out follow-up foundation that obtains from the routing function module, set up forward connection section and back mapping relations to linkage section; Perhaps will receive after connect data-message and carry out the conversion of SCCP or SUA agreement, send to linkage section by the back of setting up of forward connection section that receives this message that be mapped in;
No linkage function module is used for sending to the routing function module behind SUA signaling network or No.7 nation-wide Network reception nothing connection data-message based on the IP territory; After the nothing that receives connected data-message and carry out the conversion of SCCP or SUA agreement, send according to the route that obtains from the routing function module;
The routing function module is used for basis and determines towards connection request whether the destination of this request is described device from what receive towards the linkage function module, if not, the judged result that obtains carrying out follow-up foundation; Perhaps be used to receive the nothing connection data-message that no linkage function module sends, carry out route according to the purpose station address.
12. device as claimed in claim 11 is characterized in that, describedly comprises cache module and SCCP modular converter towards the linkage function module, wherein,
Cache module, what be used for that buffer memory SCCP modular converter receives does not have the connection data-message for the SUA agreement of segmented messages;
The SCCP modular converter, the SUA agreement that is used for being received as segmented messages does not have the data of connection message buffering to cache module, obtaining SUA agreement from article one segmented messages to a last segmented messages from cache module does not have group bag behind the data-message of connection, and being converted to many SCCP does not have the connection data-message.
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CN102273132A (en) * | 2009-01-08 | 2011-12-07 | 阿尔卡特朗讯美国公司 | Connectivity, adjacencies and adaptation functions |
CN102938731A (en) * | 2012-11-22 | 2013-02-20 | 北京锐易特软件技术有限公司 | Exchange and integration device and method based on proxy cache adaptation model |
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CN102273132A (en) * | 2009-01-08 | 2011-12-07 | 阿尔卡特朗讯美国公司 | Connectivity, adjacencies and adaptation functions |
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US9049187B2 (en) | 2009-01-08 | 2015-06-02 | Alcatel Lucent | Connectivity, adjacencies and adaptation functions |
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CN102938731B (en) * | 2012-11-22 | 2015-01-21 | 北京锐易特软件技术有限公司 | Exchange and integration device and method based on proxy cache adaptation model |
CN104735645A (en) * | 2013-12-20 | 2015-06-24 | 中国电信股份有限公司 | Method and interworking function device for converting routing parameters |
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