CN100589458C - Configuration device, implementing method and communication network of signalling gateway supporting multi-signalling points - Google Patents
Configuration device, implementing method and communication network of signalling gateway supporting multi-signalling points Download PDFInfo
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- CN100589458C CN100589458C CN200710118844A CN200710118844A CN100589458C CN 100589458 C CN100589458 C CN 100589458C CN 200710118844 A CN200710118844 A CN 200710118844A CN 200710118844 A CN200710118844 A CN 200710118844A CN 100589458 C CN100589458 C CN 100589458C
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Abstract
The invention discloses a distributing device of signal network gate for supporting multiple signal points, a relative method and a communication network, wherein the distribution device is arranged in the signal network gate provided with a plurality of signal networks connected with at least one media network gate controller. The device comprises a junction distribution module for attaching thejunction of each media network gate controller to one signal network, a chain distribution module for distributing application server for the junction of each media network gate controller, while theprocess of the application server is coupled with SCTP, and each application server process is attached to the junction of one media network gate controller, and a parameter distribution module for distributing M3UA message of signal network gate as non-applied network appearance value. The inventive signal network gate supports multiple signal points, which can open more than 16 signal chains with LSTP, while the butted media network gate controller can avoid relative treatment but hold the process method single signal point.
Description
Technical field
The invention belongs to the maintenance management field of flexible exchanging network, relate in particular to a kind of inking device, implementation method and communication network of signalling gateway supporting multi-signalling points.
Background technology
Along with the fast development of IP network and application, be widely regarded as the trend of the times of implementing the "Three-in-One Network" based on the next generation network (NGN) of IP bearer network and Softswitch technology.
Soft switch (SoftSwitch) is also referred to as Media Gateway Controller (MGC, Media GatewayController), is responsible for calling out control, promptly calls out establishment of connection, supervision and dismounting.Its function is equivalent to the function that the call processing module in the original circuit switching exchange is finished.Soft switch only is responsible for signaling and is called out control, there is not transfer function, that is to say, communicate by letter between two users, only in call setup and disconnection, take place alternately by signaling (or claiming agreement) and soft switch, other the time, voice, video or other Media Stream between two users, and without soft switch.
SGW (SG, Signaling Gateway) is the equipment that connects No.7 signaling network and IP network, receives or send the high-rise user message of No.7 signaling on the border of IP network and No.7 signaling network.SG is the signalling point in the No.7 signaling network, mainly finishes the Signaling System Number 7 of PSTN/ISDN side and the translation function of IP side signaling, and the intercommunication of NGN and Signaling System Number 7 net is finished by SG.
Signaling between SGW (SG) and the media gateway controlling (MGC) transmits comes standard by M3UA.The Signaling System Number 7 agreement comprises User Part (UP, user Part) and Message Transfer Part (MTP, Message Transfer Part).M3UA is supported the MTP subscriber signaling (as ISUP and SCCP message) of any Signaling System Number 7, realizes the intercommunication of Signaling System Number 7 and IP network by IP-based flow transmission control protocol (SCTP, Stream ControlTransmission Protocol).
In network application, the Signaling System Number 7 net is made up of signalling point (SP, Signaling Point), Signalling Transfer Point (STP, Signaling Transfer Point) and signaling link (SL, Signaling Link) three parts.Signalling Transfer Point has the signal switching function, signaling message can be forwarded to another signalling point from a signalling point.Signaling link is used to connect two signalling points or two Signalling Transfer Points and command transmitting.
SGW (SG) generally be with the Signaling System Number 7 net in Low Level Signaling Transfer Point LSTP (LSTP) direct connection, thereby with end office (EO) (LS) collimation connection.Signaling link selection in the No.7 signalling system (SLS) length is 4 bits, 16 kinds of combinations are arranged at most, SG and LSTP select route to be carried on which bar signaling link according to SLS, so can only open 16 signaling links between SG and certain LSTP at most.In the time need opening above 16 signaling links owing to the demand of traffic carrying capacity, general recommendations is adopted 2Mbps high speed signaling link to replace original 64Kbps signaling link and is carried higher load.But, and require SG to support multiple signaling points to support more than 16 signaling links often because the LSTP in office side's existing network does not support 2Mbps high speed signaling link.
Usually way is, between MGC and SG by M3UA in optional network appearance (Network Appearance) parameter come the coordination network type.A SG can provide the signal switching service for a plurality of MGC, SG supports multiple signaling points, enabled many signaling networks (network 1, network 2 ...), though and the MGC of any butt joint still is a single signaling point, but require the network type of MGC consistent, and determine that according to the network appearance parameter in the M3UA network number is to transmit message No. seven with SG.If cause different MG C on SG, to dispose different network numbers, the network number that must startup all relates to for the running of supporting different MG C of SG then.Simultaneously, all to enable different network numbers respectively, carry out different data configurations and processing, thereby increase the cost of opening maintenance each MGC.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of inking device, implementation method and communication system of signalling gateway supporting multi-signalling points, be required to be the problem that each Media Gateway Controller carries out different configurations and handles to solve the SGW of supporting multiple signaling points.
To achieve these goals, the invention provides a kind of inking device of signalling gateway supporting multi-signalling points, be arranged in the described SGW, described SGW disposes a plurality of signaling networks, described SGW is connected with one or more Media Gateway Controllers, and described device comprises:
One office direction configuration module is used to make the office direction of each described Media Gateway Controller to belong to a described signaling network;
One link configuration module is used to office direction configure application server, application server process and the SCTP coupling of each described Media Gateway Controller, and each described application server process belongs to the office direction of a described Media Gateway Controller;
One parameter configuration module, be used for the configuration signal gateway come to M3UA message for not using the network appearance value.
Described parameter configuration module disposes described application server for not using the network appearance value.
Described device also comprises a data configuration module, is used to dispose the whereabouts of described SGW for using the network appearance value or not using the network appearance value.Described network appearance value is a preset value.
The invention also discloses a kind of implementation method of signalling gateway supporting multi-signalling points, described SGW disposes a plurality of signaling networks, and described SGW is connected with one or more Media Gateway Controllers,
Described SGW receives the M3UA message that described Media Gateway Controller sends; Described SGW is to the coming to carrying out different configurations with whereabouts at SGW of the network appearance value in the described M3UA message; Described SGW utilizes the signaling network that office direction belonged to of described Media Gateway Controller, transmits described M3UA message.
Described SGW utilizes the signaling network of the office direction ownership of described Media Gateway Controller, transmit the step of described M3UA message, further comprise: described SGW data query configuration, to judge the next network appearance value of using to whether of SGW, if not, from described message, extract Destination Point Code, and according to the signaling network of the office direction of described Media Gateway Controller ownership, location purpose office direction; If from described message, extract Destination Point Code and network appearance value, location purpose office direction.
The step of described location purpose office direction further comprises: judge whether to find the purpose office direction, if transmit described M3UA message according to the routing configuration of described purpose office direction; If not, abandon described M3UA message.
The invention also discloses a kind of communication system of signalling gateway supporting multi-signalling points, comprise SGW, the one or more Media Gateway Controllers that are connected with described SGW, the signalling point that is connected with described SGW, described SGW disposes a plurality of signaling networks, described SGW further comprises: the inking device of a signalling gateway supporting multi-signalling points, and described device comprises:
One office direction configuration module is used to make the office direction of each described Media Gateway Controller to belong to a described signaling network;
One link configuration module is used to office direction configure application server, application server process and the SCTP coupling of each described Media Gateway Controller, and each described application server process belongs to the office direction of a described Media Gateway Controller;
One parameter configuration module, be used for the configuration signal gateway come to M3UA message for not using the network appearance value.
Described parameter configuration module disposes described application server for not using the network appearance value.
Described inking device also comprises a data configuration module, is used to dispose the whereabouts of described SGW for using the network appearance value or not using the network appearance value.
Compared to prior art, the present invention possesses following beneficial effect: signalling gateway supporting multi-signalling points, realized and LSTP between open requirement more than 16 signaling links.And the Media Gateway Controller of butt joint needn't be done the relevant processing that cooperates, and keeps the processing mode of single signaling point.
Description of drawings
Fig. 1 is the networking schematic diagram of the communication network of SGW multiple signaling points;
Fig. 2 is the structure chart of the inking device of signalling gateway supporting multi-signalling points of the present invention;
Fig. 3 receives the process flowchart of the M3UA message that MGC sends for SGW.
Reference numeral:
Inking device 20 office direction configuration modules 201
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also shown in Figure 1ly, be the networking schematic diagram of the communication network of the application's signalling gateway supporting multi-signalling points.Suppose to comprise in the network three end office (EO)s, LS1, LS2, LS3.Three end office (EO)s are connected with Low Level Signaling Transfer Point LSTP LSTP respectively.LSTP is connected with SGW SG.Wherein, LS1 and LSTP have opened 9 No. seven links, and LS2 and LSTP have opened 9 No. seven links, and LS3 and LSTP have also opened 9 No. seven links.Then 27 No. seven links have altogether surpassed the number of links that signaling link selection SLS can carry, so need enable the multiple signaling points function at SGW.So SG enables two signaling networks, its network number is respectively NET1 and NET2.SG can be connected with one or more MGC, is example with two among Fig. 1.SG is connected with MGC1, MGC2 respectively.
Each signalling point all has a signaling point code, and the signaling point code of MGC1 is 1-1-1, and MGC2 is 1-1-2, and NET1 is 2-2-1, and NET2 is 2-2-2, and LSTP is 3-3-1, and LS1 is 4-4-1, and LS2 is 4-4-2, and LS3 is 4-4-3.MGC1 is responsible for LS1 of tandem end office (EO) and LS2 as tandem exchange.MGC2 is responsible for the LS3 of tandem end office (EO) as tandem exchange.
The present invention specifies the defective that signaling network brought in order to overcome the M3UA message that is sent by MGC, carries out data configuration in SGW SG side, particularly utilizes an inking device to be achieved.As shown in Figure 2, be the structure chart of the inking device of signalling gateway supporting multi-signalling points of the present invention.Described inking device is arranged in the described SGW.
Inking device 20 comprises that four are formed module, an office direction configuration module 201, a link configuration module 202, a parameter configuration module 203, a data configuration module 204.Wherein, office direction configuration module 201 is used to dispose each MGC office direction and belongs to a signaling network.For example, the office direction of MGC1 is configured to belong to NET1, please also refer to Fig. 1.Utilize described office direction configuration module 201 in signaling network NET1, to dispose MGC1, LS1, four office directions of LS2, LSTP_NET1, the office direction of MGC2 is configured to belong to NET2, promptly, utilize described office direction configuration module 201 to dispose MGC2, LS3, three office directions of LSTP_NET2 in signaling network NET2, wherein LSTP_NET1 and LSTP_NET2 point to Signalling Transfer Point LSTP.
To 16 signaling links of office direction LSTP_NET1 configuration, home link group 1, to 11 signaling links of office direction LSTP_NET2 configuration, home link group 2 altogether and just opened 27 signaling links between the LSTP, has satisfied the demand of end office (EO).
In addition, utilize described link configuration module 202 to be respectively each MGC office direction configure application server AS, application server process ASP and SCTP coupling.Application server AS is the logic entity of the specific office direction of service.And application server process ASP is the process instance of application server AS, is the activation or the standby process of application server.SG and some MGC office directions can dispose a plurality of AS, a plurality of ASP.ASP comprises SCTP endpoint, and can dispose the signaling traffic that ASP handles a plurality of application server AS.
In the present embodiment, utilize described link configuration module 202 to dispose AS1 and ASP1 respectively to MGC1, open the SCTP1 coupling for SGW SG.Utilize described link configuration module 202 to dispose AS2 and ASP2 respectively to MGC2, open the SCTP2 coupling for SGW SG.Wherein, ASP1 belongs to AS1, and ASP2 belongs to AS2, and each ASP need belong to a MGC office direction.The present invention is also special utilize to the network appearance value in the M3UA message SGW come to the different settings of whereabouts, only be provided with and handle realizing in the SG side, MGC need not do and cooperate the effect of handling.
The network appearance value is the parameter that is used for replenishing NI (network identity language), with identification No.7 signaling context, determines network number.The network appearance value is not that the overall situation is meaningful, only coordinates between SG and ASP.
In the present invention, utilizing described parameter configuration module 203 is to come to not using the network appearance value at SG with each described application server configuration.For example, whether the option of AS1 " is used network appearance " and be set to "No", and whether the option of AS2 " is used network appearance " be set to "No".Because by aforesaid setting, the office direction of each MGC belongs to a signaling network separately, each application server process also only is an office direction service separately, further coming then at SGW to being set to not use network appearance, can support directly to determine signaling network, and MGC is not done consideration by the network appearance value that M3UA message sends by the signaling network of MGC office direction ownership.And the present invention also can utilize data configuration module 204 that SGW SG is configured to send the network appearance value in the SG whereabouts, and this network appearance value is a preset value.Also can be configured to and do not send the network appearance value, then send in the M3UA message of MGC and do not comprise the network appearance value.
The Signaling System Number 7 that M3UA can carry comprises TUP, ISUP, SCCP etc., and the process flowchart for SGW SG receives the M3UA message that MGC sends sees also shown in Figure 3.
Step 301: normal with the STCP link of MGC, ASP, AS are in the normal service state, and SGW has been received carrying data (DATA) message of M3UA;
Step 302: the configuration of SGW data query, according to ASP inquiry ownership AS, determine the next network appearance that uses to whether of SG according to the AS attribute;
Step 303: if, use network appearance, then from M3UA message, extract the network number and the DPC (Destination Point Code) of network appearance correspondence, carry out data query in view of the above, location purpose office direction number, the described feature of this step is the handling process that prior art adopts;
Step 304: if not, do not use network appearance, then extract DPC from M3UA message, get predefined network number from data configuration, promptly the network number that belonged to of MGC office direction carries out data query in view of the above, location purpose office direction number;
Step 305: judge whether to find purpose office direction number;
Step 306: if, find purpose office direction number, transmit this message according to the routing configuration of this office direction;
Step 307: if not, do not find purpose office direction number, can't transmit this message, then abandon this message, and inform that by M3UA this office direction of MGC is unreachable.
Below further be example with the isup message, the situation that SGW SG is configured to send the network appearance value describes.
For example, initiate a call to MGC2 from the LS3 of end office (EO), OPC Origination Point Code in the IAM message (OPC) is 4-4-3, and Destination Point Code (DPC) is 1-1-2, and SGW is selected the SCTP2 coupling to transmit M3UA message and given MGC2 according to DPC and network N ET2.And according to the setting of the transmission network appearance value of SGW, M3UA message band network appearance value 1, this network appearance value 1 is corresponding to NET1.OPC is 1-1-2 in the message that MGC2 responds, and DPC is 4-4-3, and corresponding band network appearance value 1.SGW is according to the described flow process of Fig. 2, and foundation is handled to the configuration of not using network appearance.And, so in NET2, locate DPC, find the LS3 of end office (EO), and be transmitted to LSTP, and do not consider network appearance value entrained in the message by link in the link group 2 because MGC2 is configured in signaling network NET2.
SGW SG is configured to the situation that the SG whereabouts does not send the network appearance value, initiate a call to MGC2 from the LS3 of end office (EO), OPC Origination Point Code in the IAM message (OPC) is 4-4-3, Destination Point Code (DPC) is 1-1-2, SGW is selected the SCTP2 coupling to transmit M3UA message and is given MGC2 according to DPC and network N ET2.M3UA message is not with the network appearance value.OPC is 1-1-2 in the message that MGC2 responds, and DPC is 4-4-3, goes back portability default network appearance value 1.But SGW is according to the described flow process of Fig. 2, and foundation is handled to the configuration of not using network appearance.Because MGC2 is configured in signaling network NET2, so locate DPC in NET2, finds the LS3 of end office (EO), and is transmitted to LSTP by link in the link group 2, and do not consider network appearance value 1 entrained in the message.
Certainly, scheme of the present invention is also applicable to having adopted two SGWs to carry out load sharing, perhaps in the network of Media Gateway Controller disaster tolerance pattern.
The present invention is obedient to and meets M3UA (IETF RFC3332), but the network appearance parameter in the M3UA is improved in the processing method of SGW, adopt implementation method of the present invention, signalling gateway supporting multi-signalling points, realized and LSTP between open requirement more than 16 signaling links.And the Media Gateway Controller of butt joint needn't be known the inside story, and also needn't do relevant the cooperation and handle, and keeps the processing mode of single signaling point.When SGW provided the signal switching service for the Media Gateway Controller product of a plurality of different operators, Practical significance of the present invention was more obvious.The product intercommunication of different operators open maintenance because manufacturer is in competitive relation, generally can make barrier mutually, often need operator to coordinate.Enable multiple signaling points in this way and make, the Media Gateway Controller of a plurality of different operators of service does not need to know that SGW enabled multiple signaling points, do not need the data of other media controller manufacturers to cooperate, just do not need operator to coordinate yet, can greatly save operation maintenance cost.
Though the present invention discloses with aforesaid preferred embodiment, be not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention, the modification of being done all is included in the application's the scope.
Claims (10)
1, a kind of inking device of signalling gateway supporting multi-signalling points is arranged in the described SGW, and described SGW disposes a plurality of signaling networks, and described SGW is connected with one or more Media Gateway Controllers, it is characterized in that, described device comprises:
One office direction configuration module is used to make the office direction of each described Media Gateway Controller to belong to a described signaling network;
One link configuration module is used to office direction configure application server, application server process and the SCTP coupling of each described Media Gateway Controller, and each described application server process belongs to the office direction of a described Media Gateway Controller;
One parameter configuration module, be used for the configuration signal gateway come to M3UA message for not using the network appearance value.
2, device as claimed in claim 1 is characterized in that, described parameter configuration module disposes described application server for not using the network appearance value.
3, device as claimed in claim 1 is characterized in that, described device also comprises a data configuration module, is used to dispose the whereabouts of described SGW for using the network appearance value or not using the network appearance value.
4, device as claimed in claim 3 is characterized in that, described network appearance value is a preset value.
5, a kind of implementation method of signalling gateway supporting multi-signalling points, described SGW disposes a plurality of signaling networks, and described SGW is connected with one or more Media Gateway Controllers, it is characterized in that,
Described SGW receives the M3UA message that described Media Gateway Controller sends;
Described SGW is to the coming to carrying out different configurations with whereabouts at SGW of the network appearance value in the described M3UA message;
Described SGW utilizes the signaling network that office direction belonged to of described Media Gateway Controller, transmits described M3UA message.
6, method as claimed in claim 5 is characterized in that, described SGW utilizes the signaling network of the office direction ownership of described Media Gateway Controller, transmits the step of described M3UA message, further comprises:
Described SGW data query configuration, to judge that whether the next of SGW uses the network appearance value to, if not, extracts Destination Point Code from described M3UA message, and according to the signaling network of the office direction of described Media Gateway Controller ownership, location purpose office direction; If from described M3UA message, extract Destination Point Code and network appearance value, location purpose office direction.
7, method as claimed in claim 6 is characterized in that, the step of described location purpose office direction further comprises:
Judge whether to find the purpose office direction, if transmit described M3UA message according to the routing configuration of described purpose office direction; If not, abandon described M3UA message.
8, a kind of communication system of signalling gateway supporting multi-signalling points, comprise SGW, the one or more Media Gateway Controllers that are connected with described SGW, the signalling point that is connected with described SGW, described SGW disposes a plurality of signaling networks, it is characterized in that described SGW further comprises:
The inking device of one signalling gateway supporting multi-signalling points, described device comprises:
One office direction configuration module is used to make the office direction of each described Media Gateway Controller to belong to a described signaling network;
One link configuration module is used to office direction configure application server, application server process and the SCTP coupling of each described Media Gateway Controller, and each described application server process belongs to the office direction of a described Media Gateway Controller;
One parameter configuration module, be used for the configuration signal gateway come to M3UA message for not using the network appearance value.
9, system as claimed in claim 8 is characterized in that, described parameter configuration module disposes described application server for not using the network appearance value.
10, system as claimed in claim 8 is characterized in that, described inking device also comprises a data configuration module, is used to dispose the whereabouts of described SGW for using the network appearance value or not using the network appearance value.
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| CN200710118844A CN100589458C (en) | 2007-06-12 | 2007-06-12 | Configuration device, implementing method and communication network of signalling gateway supporting multi-signalling points |
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| CN200710118844A CN100589458C (en) | 2007-06-12 | 2007-06-12 | Configuration device, implementing method and communication network of signalling gateway supporting multi-signalling points |
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| CN100589458C true CN100589458C (en) | 2010-02-10 |
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| CN101562630B (en) * | 2008-04-16 | 2012-07-04 | 大唐移动通信设备有限公司 | Method and device for transmitting signaling messages of wireless network layer |
| CN101335795B (en) * | 2008-06-05 | 2011-07-13 | 中兴通讯股份有限公司 | Method for signaling forwarding and signaling switching device |
| CN101369974B (en) * | 2008-09-28 | 2011-01-05 | 中兴通讯股份有限公司 | Method and device for network grouping and message forwarding by using M3UA protocol |
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