CN102014128B - Method and system for transmitting signaling network management messages of MTP3 (message transfer protocol3) - Google Patents
Method and system for transmitting signaling network management messages of MTP3 (message transfer protocol3) Download PDFInfo
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- CN102014128B CN102014128B CN201010556114.6A CN201010556114A CN102014128B CN 102014128 B CN102014128 B CN 102014128B CN 201010556114 A CN201010556114 A CN 201010556114A CN 102014128 B CN102014128 B CN 102014128B
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Abstract
The invention provides a method and system for transmitting signaling network management messages of an MTP3 (message transfer protocol3). The method comprises: after receiving a signaling network management message, a signaling transfer point detects whether the message can reach the destination signaling node of the signaling network management message; when confirming that the message can not reach the destination signaling node of the signaling network management message, the signaling transfer point constructs an unreachable notification message according to the signaling network management message of the MTP3, wherein the unreachable notification message carries a destination signaling node identifier corresponding to the notification message; and intermediate signaling nodes between the signaling transfer point and a source signaling node transmit the unreachable notification message to the source signaling node of the signaling network management message according to the destination signaling node identifier hop by hop. By using the technical scheme, the defects of the M3UA (message transfer part 3 user adaption layer) protocol in the aspect of signaling network management functions are overcome, thereby realizing the goal of M3UA/MTP3-compatible signaling network management.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of transfer approach and system of signaling network management message of MTP3 agreement.
Background technology
Message Transfer Part third level user adaptation layer (Message Transfer Part 3User Adaption layer, referred to as M3UA) agreement is messaging protocol 3 (Message Transfer Protocol 3, referred to as MTP3) user's adapting protocol, MTP3 layer is zoomed out, can be regarded as the peer layer agreement of MTP3.Aspect signaling network management, M3UA and MTP3 agreement are being consistent aspect routing management and user management substantially.
M3UA is the asymmetrical agreement based on " client-server " model, is not suitable for applying between reciprocity signaling element, exist configuration inconsistent, safeguard the problems such as complexity is higher.M3UA manages signaling network by signaling network management message, due to re-constructing of asymmetrical protocol model and signaling network management function, causes M3UA aspect signaling network management function, to have defect and deficiency.M3UA administrative messag cannot support down hop to send, and has limited between STP equipment and has adopted M3UA.
Referring to accompanying drawing 1, step 1, signalling point A sends a message to signalling point D, Signalling Transfer Point C receive detect after this message between itself and signalling point D unreachable.Step 2, according to the handling process of current agreement, Signalling Transfer Point C will send the DUNA message about signalling point D to Signalling Transfer Point B.And do not receive any inaccessible notification message about signalling point D as the signalling point A in message transmission source, may cause subsequent message further to lose.For the problems referred to above in correlation technique, effective solution is not yet proposed at present.
Summary of the invention
In correlation technique.Due to re-constructing of asymmetrical protocol model and signaling network management function, cause M3UA message cannot support down hop to send, limited between STP equipment and adopted the problems such as M3UA, the invention provides a kind of transfer approach and system of signaling network management message of MTP3 agreement, one of to address the above problem at least.
According to an aspect of the present invention, provide a kind of transfer approach of signaling network management message of MTP3 agreement, comprising: Signalling Transfer Point receives after signaling network management message, detect the object signaling node whether this message can arrive this signaling network management message; When definite can not arrival, Signalling Transfer Point is constructed unreachable notification message according to the signaling network management message of MTP3 agreement, and wherein, this unreachable notification message carries the object signaling node sign that this notification message is corresponding; In the middle of each between Signalling Transfer Point and source signaling node, signaling node is sent to above-mentioned unreachable notification message the source signaling node of above-mentioned signaling network management message according to above-mentioned purpose signaling node sign hop-by-hop.
According to a further aspect of the present invention, provide a kind of transfer system of signaling network management message of MTP3 agreement, comprising: Signalling Transfer Point and middle signaling node.Wherein, above-mentioned Signalling Transfer Point comprises: detection module, for receiving after signaling network management message at Signalling Transfer Point, detects the object signaling node whether above-mentioned message can arrive this signaling network management message; Constructing module, for determining that while can not arrive, above-mentioned Signalling Transfer Point is constructed unreachable notification message according to the signaling network management message of MTP3 agreement, wherein, above-mentioned unreachable notification message carries the object signaling node sign that this notification message is corresponding; Signaling node piece in the middle of above-mentioned, comprising: delivery module, and for above-mentioned unreachable notification message being sent to the source signaling node of above-mentioned signaling network management message according to above-mentioned purpose signaling node sign hop-by-hop.
The present invention is by determining while can not arrive the object signaling node of signaling network management message, according to the signaling network management message of MTP3 agreement, construct unreachable notification message, in the middle of each between Signalling Transfer Point and source signaling node, signaling node is sent to unreachable notification message the source signaling node of signaling network management message according to object signaling node sign hop-by-hop, solved re-constructing due to asymmetrical protocol model and signaling network management function in correlation technique, cause M3UA message cannot support down hop to send, limited between STP equipment and adopted the problems such as M3UA, thereby defect and the deficiency of having avoided M3UA to exist aspect signaling network management function, and then realized the object of the compatible MTP3 signaling network management of M3UA.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the not accessibility schematic flow sheet in the message trigger destination of correlation technique;
Fig. 2 is according to the transfer approach flow chart of the signaling network management message of the MTP3 agreement of the embodiment of the present invention;
Fig. 3 is the message format schematic diagram of M3UA transparent transmission MTP3 signaling network management message according to the preferred embodiment of the invention;
Fig. 4 is the inaccessible schematic flow sheet in message trigger destination according to the preferred embodiment of the invention;
Fig. 5 is M3UA transparent transmission MTP3 signaling network management TFP message format schematic diagram according to the preferred embodiment of the invention;
Fig. 6 is the M3UA No.7 nation-wide Network administrative messag DUNA message format schematic diagram according to the embodiment of the present invention;
Fig. 7 is according to the transfer system structure chart of the signaling network management message of the MTP3 agreement of the embodiment of the present invention;
Fig. 8 is the transfer system structural representation of the signaling network management message of MTP3 agreement according to the preferred embodiment of the invention.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Fig. 2 is according to the transfer approach flow chart of the signaling network management message of the MTP3 agreement of the embodiment of the present invention.As shown in Figure 2, this transfer approach mainly comprises following processing:
S202, Signalling Transfer Point receives after signaling network management message, detects the object signaling node whether this message can arrive this signaling network management message;
S204, when definite can not arrival, Signalling Transfer Point is constructed unreachable notification message according to the signaling network management message of MTP3 agreement, and wherein, this unreachable notification message carries the object signaling node sign that this notification message is corresponding;
S206, in the middle of each between Signalling Transfer Point and source signaling node, signaling node is sent to above-mentioned unreachable notification message the source signaling node of above-mentioned signaling network management message according to above-mentioned purpose signaling node sign hop-by-hop.
By above-mentioned processing, Signalling Transfer Point can be constructed unreachable notification message according to the signaling network management message of MTP3 agreement, and this message is notified to the source signaling node of above-mentioned signaling network management message via signaling node in the middle of each, this source signaling node determines that signaling network management message cannot arrive its corresponding object signaling node, stop sending signaling network management message to this object signaling node, thereby avoided the further loss of subsequent message.
Preferably, the source signaling node that above-mentioned each middle signaling node is sent to above-mentioned signaling network management message according to above-mentioned purpose signaling node sign by above-mentioned unreachable notification message can comprise following processing: (1), for signaling node in the middle of each, whether this centre signaling node relatively above-mentioned purpose signaling sign is consistent with local signaling sign; (2), in above-mentioned purpose signaling sign and local signaling, identify when inconsistent, in the middle of down hop, signaling node sends unreachable notification message.
In preferred implementation process, before whether above-mentioned centre signaling node comparison above-mentioned purpose signaling sign is consistent with local signaling sign, can also comprise following processing: the SI field that in the middle of above-mentioned, signaling node detects in the protocol data parameter in the signaling network management message in the MTP3 agreement of described reception equals at 00 o'clock, and the protocol data parameter in the signaling network management message of M3UA is converted to the routing label field in MT reconnaissance P3 signaling network management message.
By above-described embodiment, can find out, above-described embodiment has solved re-constructing due to asymmetrical protocol model and signaling network management function in correlation technique, cause M3UA message cannot support down hop to send, limited between STP equipment and adopted the problems such as M3UA, thereby defect and the deficiency of having avoided M3UA to exist, and then realized the object that the compatible MTP3 signaling network of M3UA is managed aspect signaling network management function.
Preferably, described, before signaling node is sent to the source signaling node of described signaling network management message according to described object signaling node sign by described unreachable notification message in the middle of each, can also comprise: the above-mentioned unreachable notification message of M3UA unit transparent transmission that above-mentioned Signalling Transfer Point is used that News Category equals 01, type of message equals 01, service indicator equals 00.Wherein the message format of M3UA unit transparent transmission MTP3 signaling network management message can be referring to shown in accompanying drawing 3.
Preferably, above-mentioned each middle signaling node can also comprise following processing after above-mentioned unreachable notification message being sent to the source signaling node of above-mentioned signaling network management message according to above-mentioned purpose signaling node sign: the source signaling node of described signaling network management message stops sending signaling network management message to the object signaling node of described signaling network management message.
In order to understand better the present invention, below in conjunction with Fig. 4, describe above-mentioned preferred implementation in detail.Fig. 4 is the inaccessible schematic flow sheet in message trigger destination according to the preferred embodiment of the invention.As shown in Figure 4, this flow process can comprise following processing:
Step S402, signalling point A sends a message to signalling point D, object signalling coding DPC=D wherein, source target signalling coding OPC=A.
Step S404, Signalling Transfer Point C receives after this message, detects between itself and signalling point D unreachablely, needs the unreachable notification message of loopback to signalling point A.The Original Signaling Point code (A) that further checks this message is not identical with M3UA opposite end signaling point code (B), according to the signaling network management message structure TFP message of MTP3 agreement, then use News Category to equal 01 (transmission message), type of message and equal the TFP message that 01 (data), service indicator equal 00 M3UA unit transparent transmission MTP3 agreement, can be referring to Fig. 5 about M3UA transparent transmission MTP3 signaling network management TFP message format.
Step S406, Signalling Transfer Point B receives the TFP message that adopts M3UA unit transparent transmission, the SI field detecting in protocol data parameter equals 00, protocol data parameter in M3UA message body is converted to the routing label field (identical with data retransmission processing procedure) in MTP3 message body, and is transmitted to MTP3 agreement and further processes.MTP3 agreement contrast destination signaling point code and local signaling point code, send to signalling point A by TFP message.
The message format of M3UA No.7 nation-wide Network administrative messag DUNA shown in the MTP3 of M3UA transparent transmission shown in comparison diagram 5 signaling network management TFP message format and Fig. 6, can find out and in the TFP of transparent transmission message format, also comprise Original Signaling Point code and destination signaling point code information.By contrast Destination Point Code and local signaling point, encode just, thereby M3UA supports down hop to forward.
Step S408, signalling point A receives after TFP message, stops continuing to send message to signalling point D, has avoided subsequent message further to lose.
Should be appreciated that above is only the explanation of carrying out for this particular message of TFP, and all signaling network management messages of MTP3 agreement all can adopt this method on M3UA, to carry out transparent transmission; At M3UA two ends, all support under the prerequisite of above preferred embodiment, for the SSNM message of original M3UA (as DUNA etc.), can be converted to equally the transparent transmission message format as shown in Fig. 3 and transmit, further the flow process of unified signaling network management; And at M3UA two ends, all support under the prerequisite of above preferred embodiment, can utilize the MTP3 such as COO, COA, ECO, ECA, CBD, CBA to switch to refund message to realize switching of M3UA and refund flow process, avoid incorrect order and the loss of message.
Fig. 7 is according to the transfer system structure chart of the signaling network management message of the MTP3 agreement of the embodiment of the present invention.As shown in Figure 7, this system comprises: Signalling Transfer Point 70 and middle signaling node 72.Wherein,
Above-mentioned Signalling Transfer Point 70 comprises: detection module 702, for receiving after signaling network management message at Signalling Transfer Point, detects the object signaling node whether above-mentioned message can arrive this signaling network management message; Constructing module 704, for determining that while can not arrive, above-mentioned Signalling Transfer Point is constructed unreachable notification message according to the signaling network management message of MTP3 agreement, wherein, above-mentioned unreachable notification message carries the object signaling node sign that this notification message is corresponding;
Signaling node piece 72 in the middle of above-mentioned, comprising: delivery module 720, and for above-mentioned unreachable notification message being sent to the source signaling node of above-mentioned signaling network management message according to above-mentioned purpose signaling node sign hop-by-hop.
By above-mentioned processing, Signalling Transfer Point can be constructed unreachable notification message according to the signaling network management message of MTP3 agreement, and this message is notified to the source signaling node of above-mentioned signaling network management message via signaling node in the middle of each, this source signaling node determines that signaling network management message cannot arrive its corresponding object signaling node, stop sending signaling network management message to this object signaling node, thereby avoided the further loss of subsequent message.
Preferably, as shown in Figure 8, in the middle of each is above-mentioned, signaling node 72 all can comprise:
Comparison module 722, whether consistent with local signaling sign for more described object signaling sign;
Described delivery module 720, also, for identifying in described object signaling sign and local signaling when inconsistent, in the middle of down hop, signaling node sends described unreachable notification message.
Preferably, as shown in Figure 8, above-mentioned each above-mentioned middle signaling node 72 can also comprise: modular converter 724, for the SI field in the protocol data parameter in the signaling network management message of MTP3 agreement that above-mentioned reception detected, equal at 00 o'clock, the protocol data parameter in the signaling network management message of M3UA is converted to the routing label field in MT reconnaissance P3 signaling network management message.
Preferably, as shown in Figure 8, above-mentioned Signalling Transfer Point 70 can also comprise: transparent transmission module 706, the above-mentioned unreachable notification message of M3UA unit transparent transmission that News Category equals 01 for using, type of message equals 01, service indicator equals 00.
Preferably, as shown in Figure 8, said system can also comprise: source signaling node 80, for after receiving above-mentioned unreachable notification message, stops sending signaling network management message to the object signaling node of above-mentioned signaling network management message.
From above description, can find out, above-described embodiment has adopted following technical scheme: M3UA is when sending signaling network management message, and the destination signaling point code that is checked through this message is not M3UA opposite end signaling point code, according to the signaling network management message of MTP3 agreement, constructs.Then use News Category to equal 01 (transmission message), type of message and equal the signaling network management message that 01 (data), service indicator equal 00 M3UA unit transparent transmission MTP3 agreement.M3UA receives opposite end that being transmitted to MTP3 agreement after this message processes, thereby defect and the deficiency that can avoid M3UA to exist aspect signaling network management function realize the object of the compatible MTP3 signaling network management of M3UA.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a transfer approach for the signaling network management message of MTP3 agreement, is characterized in that, comprising:
Signalling Transfer Point receives after signaling network management message, detects the object signaling node whether described message can arrive this signaling network management message;
When definite can not arrival, described Signalling Transfer Point is constructed unreachable notification message according to the signaling network management message of MTP3 agreement, and wherein, described unreachable notification message carries the object signaling node sign that this notification message is corresponding;
In the middle of each between described Signalling Transfer Point and source signaling node, signaling node is sent to described unreachable notification message the source signaling node of described signaling network management message according to described object signaling node sign hop-by-hop, wherein, the source signaling node that described each middle signaling node is sent to described signaling network management message according to described object signaling node sign by described unreachable notification message comprises: for signaling node in the middle of each, whether the more described object signaling sign of this centre signaling node is consistent with local signaling sign; In described object signaling sign and local signaling, identify when inconsistent, in the middle of down hop, signaling node sends described unreachable notification message.
2. method according to claim 1, is characterized in that, before whether the more described object signaling sign of described middle signaling node is consistent with local signaling sign, also comprises:
The SI field that in the middle of described, signaling node detects in the protocol data parameter in the signaling network management message in the MTP3 agreement of described reception equals at 00 o'clock, and the protocol data parameter in the signaling network management message of M3UA is converted to the routing label field in described MTP3 signaling network management message.
3. method according to claim 1, is characterized in that, before described each middle signaling node is sent to the source signaling node of described signaling network management message according to described object signaling node sign by described unreachable notification message, also comprises:
Described Signalling Transfer Point is used that News Category equals 01, type of message equals 01, service indicator equals unreachable notification message described in 00 M3UA unit transparent transmission.
4. method according to claim 1, is characterized in that, described each middle signaling node also comprises after described unreachable notification message being sent to the source signaling node of described signaling network management message according to described object signaling node sign:
The source signaling node of described signaling network management message stops sending signaling network management message to the object signaling node of described signaling network management message.
5. a transfer system for the signaling network management message of MTP3 agreement, is characterized in that, comprising: Signalling Transfer Point and middle signaling node;
Described Signalling Transfer Point comprises:
Detection module, for after receiving signaling network management message, detects the object signaling node whether described message can arrive this signaling network management message;
Constructing module, for determining while can not arrive, according to the signaling network management message of MTP3 agreement, construct unreachable notification message, wherein, described unreachable notification message carries the object signaling node sign that this notification message is corresponding;
In the middle of described, signaling node comprises: delivery module, for described unreachable notification message being sent to the source signaling node of described signaling network management message according to described object signaling node sign hop-by-hop, wherein, in the middle of described in each, signaling node includes: comparison module, and whether consistent with local signaling sign for more described object signaling sign; Described delivery module, also, for identifying in described object signaling sign and local signaling when inconsistent, in the middle of down hop, signaling node sends described unreachable notification message.
6. system according to claim 5, is characterized in that, described in each, middle signaling node also comprises:
Modular converter, for the SI field in the protocol data parameter in the signaling network management message of MTP3 agreement that described reception detected, equal at 00 o'clock, the protocol data parameter in the signaling network management message of M3UA is converted to the routing label field in described MTP3 signaling network management message.
7. system according to claim 5, is characterized in that, described Signalling Transfer Point also comprises:
Transparent transmission module, for using, News Category equals 01, type of message equals 01, service indicator equals unreachable notification message described in 00 M3UA unit transparent transmission.
8. system according to claim 5, is characterized in that, described system also comprises:
Source signaling node, for after receiving described unreachable notification message, stops sending signaling network management message to the object signaling node of described signaling network management message.
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| CN1870521A (en) * | 2005-11-04 | 2006-11-29 | 华为技术有限公司 | Method for reducing service lossing of SS7 signalling and M3UA communicating |
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