CN104735645A - Method and interworking function device for converting routing parameters - Google Patents
Method and interworking function device for converting routing parameters Download PDFInfo
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- CN104735645A CN104735645A CN201310711254.XA CN201310711254A CN104735645A CN 104735645 A CN104735645 A CN 104735645A CN 201310711254 A CN201310711254 A CN 201310711254A CN 104735645 A CN104735645 A CN 104735645A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
Abstract
The invention discloses a method and interworking function device for converting routing parameters. The method comprises the steps: when a first request message sent by a Diameter node is received, extracting a Diameter node host name contained in the first request message; using a global title related to the Diameter node host name in a dynamic mapping table as a global title of the Diameter node; judging whether the first request message contains a host name of a MAP node used as a called party or not; if the host name of the MAP node is contained, converting the host name of the MAP node into the global title of the MAP node according to a preset rule, and using the global title as a called user address; if the host name of the MAP node is not contained, using the global title corresponding to an IMSI in user identification as the called user address; sending a second request message to the MAP node, wherein the second request message comprises the global title and the called user address of the Diameter node. Routing parameter conversion is performed between a Diameter protocol and a MAP protocol through the IWF, and interconnection and interworking of different protocols between LTE and a 2G/3G network are ensured.
Description
Technical field
The present invention relates to the communications field, particularly a kind of method for changing routing parameter and IWF device.
Background technology
At LTE(Long Term Evolution, Long Term Evolution) with the roaming technology of 2G/3G, 3GPP(3rd Generation Partnership Project, third generation partner program) specify by IWF(Interworking Function, IWF) realize Diameter and MAP(Mobile Application Part, MAP) conversion.Diameter and MAP adopt different routing mechanisms, wherein Diameter adopts domain name (realm) and Hostname (host name) to carry out route, and MAP mainly adopts global title in a mobile network, and (Global Title is called for short: GT) carry out route.Current 3GPP does not have specification IWF for the conversion method of the above-mentioned route data of two agreements, and research and development and the network design of actual IWF equipment still have problems.
Industry it is also proposed the routing parameter conversion method of two agreements, but needs in IWF, configure the host name of each LTE network element and the corresponding relation of global title in advance, and this mode can also accept for small-sized network.Therefore and improper but for large-scale network, the network element due to LTE needs frequent dilatation and variation, constantly notice IWF is needed to adjust host name and the global title corresponding relation of each LTE network element, very flexible.
Summary of the invention
The embodiment of the present invention provides a kind of method for changing routing parameter and IWF device.Carry out the routing parameter conversion between Diameter and MAP by the IWF when LTE and 2G/3G roams, ensure that interconnecting of different agreement between LTE and 2G/3G network.After adopting this patent, the IWF of international office nets the host name of each LTE network element interior without the need to special configuration operator, synchronous coordination between the operation management avoiding LTE network element in international office and each province's net, thus more can carry out LTE and 2G/3G services of roaming fast and flexible.
According to an aspect of the present invention, a kind of method for changing routing parameter being provided, comprising:
When receiving the first request message that Diameter node sends, extract the Diameter node host title that the first request message comprises;
Using the global title that is associated with Diameter node host title in the dynamic mapping table global title as Diameter node;
Judge the Hostname of the MAP node whether comprised in the first request message as callee;
If the first request message comprises the Hostname of MAP node, then according to pre-defined rule, the Hostname of MAP node is converted to the global title of MAP node, using as called subscriber address;
If do not comprise the Hostname of MAP node in the first request message, then using global title corresponding for the IMSI in user ID Subscription-ID as called subscriber address;
Second request message is sent to MAP node, and wherein the second request message comprises global title and the called subscriber address of Diameter node.
Preferably, the step of the global title be associated with Diameter node host title in dynamic mapping table as the global title of Diameter node is comprised:
Whether inquiry exists the global title be associated with Diameter node host title in dynamic mapping table;
If there is the global title that is associated with Diameter node host title, then using the global title that is associated with the Diameter node host title global title as Diameter node.
Preferably, if there is not the global title be associated with Diameter node host title, then in dynamic mapping table, select the global title that idle, using the global title as Diameter node.
Preferably, said method also comprises:
For each global title be assigned with in dynamic mapping table arranges timer;
When the global title be assigned with or the Diameter node host title that is associated with the global title be assigned with are queried, upgrade corresponding timer;
After timer expiry, discharge corresponding global title and the incidence relation of relevant Diameter node host title, corresponding global title is set to idle condition.
Preferably, when receiving the 3rd request message that MAP node sends, extract the called subscriber address of MAP node global title that the 3rd request message comprises and the Diameter node as callee;
According to predetermined rule, be the Hostname of MAP node by MAP node global title translation;
Judge that whether the called subscriber address of Diameter node is the global title of Diameter node;
If the called subscriber address of Diameter node is the global title of Diameter node, then dynamic mapping table is utilized to be Diameter node host title by the global title translation of Diameter node;
4th request message is sent to Diameter node, and wherein the 4th request message comprises Hostname and the Diameter node host title of MAP node.
Preferably, if the called subscriber address of Diameter node is the global title that IMSI is corresponding, then IMSI is converted to user ID Subscription-ID;
4th request message is sent to Diameter node, and wherein the 4th request message comprises Hostname and the user ID Subscription-ID of MAP node.
According to a further aspect in the invention, a kind of IWF device for changing routing parameter being provided, comprising first interface unit, extraction unit, global title determining unit, the first recognition unit, called subscriber's address determination unit and the second interface unit, wherein:
First interface unit, for receiving the first request message that Diameter node sends;
Extraction unit, for receive when first interface unit Diameter node send the first request message time, extract the Diameter node host title that the first request message comprises;
Global title determining unit, for the global title that will be associated with Diameter node host title in the dynamic mapping table global title as Diameter node;
First recognition unit, for judging the Hostname of the MAP node whether comprised in the first request message as callee;
Called subscriber's address determination unit, for the judged result according to the first recognition unit, if the first request message comprises the Hostname of MAP node, then according to pre-defined rule, the Hostname of MAP node is converted to the global title of MAP node, using as called subscriber address; If do not comprise the Hostname of MAP node in the first request message, then using global title corresponding for the IMSI in user ID Subscription-ID as called subscriber address;
Second interface unit, for the second request message is sent to MAP node, wherein the second request message comprises global title and the called subscriber address of Diameter node.
Preferably, global title determining unit specifically comprises enquiry module and global title determination module, wherein:
Enquiry module, for inquiring about the global title whether existing in dynamic mapping table and be associated with Diameter node host title;
Global title determination module, for the Query Result according to enquiry module, if there is the global title that is associated with Diameter node host title, then using the global title that is associated with the Diameter node host title global title as Diameter node.
Preferably, global title determination module is also for the Query Result according to enquiry module, if there is not the global title be associated with Diameter node host title, then in dynamic mapping table, select the global title that idle, using the global title as Diameter node.
Preferably, said apparatus also comprises timer management unit, wherein:
Timer management unit, for arranging timer for each global title be assigned with in dynamic mapping table, when the global title be assigned with or the Diameter node host title that is associated with the global title be assigned with are queried, upgrade corresponding timer, after timer expiry, discharge corresponding global title and the incidence relation of relevant Diameter node host title, corresponding global title is set to idle condition.
Preferably, said apparatus also comprises Hostname determining unit, the second recognition unit and converting unit, wherein:
Extraction unit is also for receiving the 3rd request message that MAP node sends during when the second interface unit, extract the called subscriber address of MAP node global title that the 3rd request message comprises and the Diameter node as callee;
MAP node global title translation, for according to predetermined rule, is the Hostname of MAP node by Hostname determining unit;
Second recognition unit, for judging that whether the called subscriber address of Diameter node is the global title of Diameter node;
Converting unit, for the judged result according to the second recognition unit, if the called subscriber address of Diameter node is the global title of Diameter node, then utilizes dynamic mapping table to be Diameter node host title by the global title translation of Diameter node; Then indicate first interface unit that the 4th request message is sent to Diameter node, wherein the 4th request message comprises Hostname and the Diameter node host title of MAP node.
Preferably, IMSI, also for the judged result according to the second recognition unit, if the called subscriber address of Diameter node is the global title that IMSI is corresponding, is then converted to user ID Subscription-ID by converting unit; Then indicate first interface unit that the 4th request message is sent to Diameter node, wherein the 4th request message comprises Hostname and the user ID Subscription-ID of MAP node.
The present invention carries out the routing parameter conversion between Diameter and MAP by the IWF when LTE and 2G/3G roams, and ensure that interconnecting of different agreement between LTE and 2G/3G network.After adopting this patent, the IWF of international office nets the host name of each LTE network element interior without the need to special configuration operator, synchronous coordination between the operation management avoiding LTE network element in international office and each province's net, thus more can carry out LTE and 2G/3G services of roaming fast and flexible.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that the present invention is for changing the schematic diagram of a method embodiment of routing parameter.
Fig. 2 is that the present invention is for changing the schematic diagram of another embodiment of method of routing parameter.
Fig. 3 is the schematic diagram of an IWF device of the present invention embodiment.
Fig. 4 is the schematic diagram of a global title determining unit of the present invention embodiment.
Fig. 5 is the schematic diagram of another embodiment of IWF device of the present invention.
Fig. 6 is that the present invention is for changing the schematic diagram of a system embodiment of routing parameter.
Fig. 7 is the schematic diagram of a present system framework embodiment.
Fig. 8 is that Diameter node of the present invention is to MAP node transmission request information one enforcement
The schematic flow sheet of example.
Fig. 9 is that MAP node of the present invention is to Diameter node transmission request information one enforcement
The schematic flow sheet of example.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 1 is that the present invention is for changing the schematic diagram of a method embodiment of routing parameter.Preferably, the method step of the present embodiment can be performed by IWF device.
Step 101, when receiving the first request message that Diameter node sends, extracts the Diameter node host title that the first request message comprises.
Step 102, using the global title that is associated with Diameter node host title in the dynamic mapping table global title as Diameter node.
Step 103, judges the Hostname of the MAP node whether comprised in the first request message as callee.If the first request message comprises the Hostname of MAP node, then perform step 104; If do not comprise the Hostname of MAP node in the first request message, then perform step 105.
Step 104, is converted to the global title of MAP node by the Hostname of MAP node according to pre-defined rule, using as called subscriber address.Then step 106 is performed.
Step 105, the IMSI(International Mobile Subscriber Identification Number that user ID Subscription-ID is comprised, international mobile subscriber identity) corresponding global title is as called subscriber address.
Step 106, sends to MAP node by the second request message, and wherein the second request message comprises global title and the called subscriber address of Diameter node.
Based on the method for changing routing parameter that the above embodiment of the present invention provides, carry out the routing parameter conversion between Diameter and MAP by the IWF when LTE and 2G/3G roams, ensure that interconnecting of different agreement between LTE and 2G/3G network.After adopting this patent, the IWF of international office nets the host name of each LTE network element interior without the need to special configuration operator, synchronous coordination between the operation management avoiding LTE network element in international office and each province's net, thus more can carry out LTE and 2G/3G services of roaming fast and flexible.
Preferably, above-mentioned the step of the global title be associated with Diameter node host title in dynamic mapping table as the global title of Diameter node to be comprised:
Whether inquiry exists the global title be associated with Diameter node host title in dynamic mapping table.
If there is the global title that is associated with Diameter node host title, then using the global title that is associated with the Diameter node host title global title as Diameter node.
If there is not the global title be associated with Diameter node host title, then in dynamic mapping table, select the global title that idle, using the global title as Diameter node.
In one embodiment, in IWF, first preset the GT code of some, prepared against and each the possible network element formative dynamics mapping relations in LTE network.When the request message that the Diameter node that IWF receives LTE network sends, extract the host name of Diameter node.Rear inquiry dynamic mapping table, if this host name has been assigned with corresponding GT code, has then adopted this GT as the GT parameter of the MAP message after conversion.If do not distribute corresponding GT code, then judge that this Diameter node is new network element, IWF dynamic assignment idle GT gives this host name, and adopts this GT as the GT parameter of the MAP message after conversion.
Preferably, in order to manage global title further, can manage further by for global title arranges timer.
In one embodiment, for each global title be assigned with in dynamic mapping table arranges timer.When the global title be assigned with or the Diameter node host title that is associated with the global title be assigned with are queried, upgrade corresponding timer.After timer expiry, discharge corresponding global title and the incidence relation of relevant Diameter node host title, corresponding global title is set to idle condition.
Table 1 is an embodiment of dynamic mapping table of the present invention, and wherein GT code resource pool is the GT code of Diameter node in reserved LTE network, supposes have 88 (460034405060701 to 460034405060788).The dynamic pond of host name is the host name of each Diameter node producing 2G/3G roaming relationships in current time LTE network.When new Diameter node produces roaming relationships, be then the GT code that its distribution is idle, such as node hss035.ctc.com.When the Diameter node being assigned with GT code participates in certain roaming, IWF can inquire hostname or GT of this Diameter node according to GT or host name, such as node mme021.ctc.com.
In order to prevent Diameter node from occupying GT resource in dynamic mapping table for a long time always, such as this Diameter node, because the reason of fault or management exits service from LTE network, is each Node configuration timer being assigned with GT code here.Namely can delete this node afterwards when the timer times out, the GT code that namely dynamic mapping table distributes before being released to this node is left follow-up possible node for and is used, such as node hss002.ctc.com.When certain Diameter node is used in once roaming (GT or host name is inquired about by IWF), now upgrade timer, can prevent dynamic mapping table from deleting the GT code (MAP and the Diameter message of roaming generation after deleting because of mistake are interrupted owing to not having corresponding GT code) of this node, such as node mme021.ctc.com so by mistake.This timer should be greater than the periodic Diameter of generation under roaming condition and the time interval of MAP message in actual use.
| Corresponding relation | The dynamic pond of host name | GT code resource pool | Timer T state |
| 1 | hss007.ctc.com | 460034405060701 | Not time-out |
| (deleted) 2 | hss002.ctc.com | 460034405060702 | Time-out |
| (being queried) 3 | mme021.ctc.com | 460034405060703 | Upgrade, not time-out |
| 4 | mme058.ctc.com | 460034405060704 | Not time-out |
| (newly distributing) 5 | hss035.ctc.com | 460034405060705 | Start, not time-out |
| …… | …… | …… | …… |
| 86 | hss063.ctc.com | 460034405060786 | Not time-out |
| Idle 87 | Nothing | 460034405060787 | Nothing |
| Idle 88 | Nothing | 460034405060788 | Nothing |
Table 1
Fig. 2 is that the present invention is for changing the schematic diagram of another embodiment of method of routing parameter.Preferably, the method step of the present embodiment can be performed by IWF device.
Step 201, when receiving the 3rd request message that MAP node sends, extracts the called subscriber address of MAP node global title that the 3rd request message comprises and the Diameter node as callee.
MAP node global title translation, according to predetermined rule, is the Hostname of MAP node by step 202.
Step 203, judges that whether the called subscriber address of Diameter node is the global title of Diameter node.If the called subscriber address of Diameter node is the global title of Diameter node, then perform step 204; If the called subscriber address of Diameter node is the global title that IMSI is corresponding, then perform step 206.
Step 204, utilizes dynamic mapping table to be Diameter node host title by the global title translation of Diameter node.
Step 205, sends to Diameter node by the 4th request message, and wherein the 4th request message comprises Hostname and the Diameter node host title of MAP node.Afterwards, other step of the present embodiment is no longer performed.
Step 206, is converted to user ID Subscription-ID by IMSI.
Step 207, sends to Diameter node by the 4th request message, and wherein the 4th request message comprises Hostname and the user ID Subscription-ID of MAP node.
Fig. 3 is the schematic diagram of an IWF device of the present invention embodiment.As shown in Figure 3, IWF device comprises first interface unit 301, extraction unit 302, global title determining unit 303, first recognition unit 304, called subscriber's address determination unit 305 and the second interface unit 306, wherein:
First interface unit 301, for receiving the first request message that Diameter node sends.
Extraction unit 302, for receive when first interface unit 301 Diameter node send the first request message time, extract the Diameter node host title that the first request message comprises.
Global title determining unit 303, for the global title that will be associated with Diameter node host title in the dynamic mapping table global title as Diameter node.
First recognition unit 304, for judging the Hostname of the MAP node whether comprised in the first request message as callee.
Called subscriber's address determination unit 305, for the judged result according to the first recognition unit 304, if the first request message comprises the Hostname of MAP node, then according to pre-defined rule, the Hostname of MAP node is converted to the global title of MAP node, using as called subscriber address; If do not comprise the Hostname of MAP node in the first request message, then global title corresponding to the IMSI comprised by user ID Subscription-ID is as called subscriber address.
Second interface unit 306, for the second request message is sent to MAP node, wherein the second request message comprises global title and the called subscriber address of Diameter node.
Based on the IWF device that the above embodiment of the present invention provides, carry out the routing parameter conversion between Diameter and MAP by the IWF when LTE and 2G/3G roams, ensure that interconnecting of different agreement between LTE and 2G/3G network.After adopting this patent, the IWF of international office nets the host name of each LTE network element interior without the need to special configuration operator, synchronous coordination between the operation management avoiding LTE network element in international office and each province's net, thus more can carry out LTE and 2G/3G services of roaming fast and flexible.
Fig. 4 is the schematic diagram of a global title determining unit of the present invention embodiment.As shown in Figure 4, global title determining unit comprises enquiry module 401 and global title determination module 402.Wherein:
Enquiry module 401, for inquiring about the global title whether existing in dynamic mapping table and be associated with Diameter node host title.
Global title determination module 402, for the Query Result according to enquiry module 401, if there is the global title that is associated with Diameter node host title, then using the global title that is associated with the Diameter node host title global title as Diameter node.
Preferably, global title determination module 402 is also for the Query Result according to enquiry module 401, if there is not the global title be associated with Diameter node host title, then in dynamic mapping table, select the global title that idle, using the global title as Diameter node.
Fig. 5 is the schematic diagram of another embodiment of IWF device of the present invention.Compared with embodiment illustrated in fig. 3, in the embodiment shown in fig. 5, IWF device also comprises timer management unit 501.Wherein:
Timer management unit 501, for arranging timer for each global title be assigned with in dynamic mapping table, when the global title be assigned with or the Diameter node host title that is associated with the global title be assigned with are queried, upgrade corresponding timer, after timer expiry, discharge corresponding global title and the incidence relation of relevant Diameter node host title, corresponding global title is set to idle condition.
Preferably, IWF device also comprises Hostname determining unit 502, second recognition unit 503 and converting unit 504.Wherein:
Extraction unit 302 is also for receiving the 3rd request message that MAP node sends during when the second interface unit 306, extract the called subscriber address of MAP node global title that the 3rd request message comprises and the Diameter node as callee.
MAP node global title translation, for according to predetermined rule, is the Hostname of MAP node by Hostname determining unit 502.
Second recognition unit 503, for judging that whether the called subscriber address of Diameter node is the global title of Diameter node.
Converting unit 504, for the judged result according to the second recognition unit 503, if the called subscriber address of Diameter node is the global title of Diameter node, then dynamic mapping table is utilized to be Diameter node host title by the global title translation of Diameter node; Then indicate first interface unit 301 that the 4th request message is sent to Diameter node, wherein the 4th request message comprises Hostname and the Diameter node host title of MAP node.
Preferably, IMSI, also for the judged result according to the second recognition unit 503, if the called subscriber address of Diameter node is the global title that IMSI is corresponding, is then converted to user ID Subscription-ID by converting unit 504; Then indicate first interface unit 301 that the 4th request message is sent to Diameter node, wherein the 4th request message comprises Hostname and the user ID Subscription-ID of MAP node.
By implementing the present invention, realize Diameter and MAP conversion easily by IWF device.Corresponding system schematic as shown in Figure 6.
Wherein, an IWF network element can serve one or more MAP node and Diameter node, and corresponding system architecture as shown in Figure 7.Wherein, for the Diameter node in LTE network, IWF adopt the present invention relates to dynamic mapping table mechanism for its distribute correspondence GT code, for the MAP node communication in 2G/3G network; For the MAP node in 2G/3G network, IWF is that it distributes host name, and host name is generated by self-defining rule conversion according to the GT code of MAP node by IWF, for the Diameter node communication in LTE network.Such as, in the figure 7, the Hostname of Diameter node 1 is host1, and corresponding global title is GT1.The global title of MAP node a is GTa, and corresponding Hostname is host a.
Embodiments of the invention can comprise 2 kinds of scenes:
1, the MAP node (such as SGSN/HLR) of 2G/3G network is to scene during Diameter node (such as HSS/MME) initial request messages of LTE network.
2, the Diameter node (HSS/MME) of LTE network is to scene during MAP node (SGSN/HLR) initial request messages of 2G/3G network.
In order to the present invention will be described further, below by concrete example, present invention is described.
Fig. 8 is the schematic flow sheet of Diameter node of the present invention to a MAP node transmission request information embodiment.This embodiment corresponds to above-mentioned scene 1.
Step 801, MAP node a to send a request message A to Diameter node 2, and the parameter that this request message carries comprises:
● calling party address (namely the GT code a of node a, supposes it is 12345).
● called subscriber address GT has 2 kinds of situations: situation 1: namely MAP node a does not know the GT code (being generally the Article 1 MAP message for this roamer) of the object Diameter node of request message, and now called subscriber address GT is the IMSI number of user; Situation 2: namely MAP node a knows the GT code of the object Diameter node of request message, now called subscriber address GT is the GT code of the destination device node (being assumed to be Diameter node 2) of request message.
● the Dialogue-ID of this MAP session, by the MAP generate rule of MAP node a according to standard.
Step 802, after IWF receives this request message A, is converted to the route data of Diameter, and message B is finally dealt into Diameter node 2 by the relevant route data of MAP message.Key data is as follows:
● Origin-Realm is IWF static configuration, such as b.com
● Origin-Host adopts self-defining rule to be converted to by IWF according to calling party address.Such as GT a is 12345, and the Origin-Host after changing is GT12345.b.com.
● Destination-Realm is IWF static configuration, such as ctc.com
● if the called subscriber address GT of MAP message is situation 1, then IWF is converted to the IMSI of the Subscription-Id(user of Diameter message).
● if the called subscriber address GT of MAP message is situation 2, then IWF is converted to the Destination-host of Diameter message by inquiry dynamic mapping table according to the GT code of called subscriber address, the corresponding host2 of such as GT2.
● during IWF asks with this MAP according to Diameter generate rule Session-ID of standard, Dialogue-ID is corresponding.
● IWF is according to the Hop-by-hop value of this Diameter message of Diameter generate rule of standard.
Step 803, Diameter node 2 returns response message A, and the parameter that this response message A carries comprises:
● Origin-Realm is Diameter node 2 static configuration, such as ctc.com.
● Origin-Host is Diameter node 2 static configuration, such as, be host2.
● Diameter node 2 produces Session-ID and the Hop-by-hop value of response message according to the Diameter rule of standard.
Step 804, after IWF receives this response message A, is converted to the route data of MAP, and message B is finally dealt into MAP node a by the relevant route data of Diameter message.Key data is as follows:
● calling party address GT is converted to the GT code of Diameter node 2 by inquiry dynamic mapping table according to the Origin-Host of response message by IWF, such as, be GT2.
● the GT of called subscriber address be before the calling party address of MAP request message that stores of IWF.
● Dialogue-ID be before the Dialogue-ID of MAP request message that stores of IWF.
Fig. 9 is the schematic flow sheet of MAP node of the present invention to a Diameter node transmission request information embodiment.This embodiment corresponds to above-mentioned scene 2.
Step 901, Diameter node 3 initial request messages A, the parameter that this request message carries comprises:
● Origin-Realm is Diameter node 3 static configuration, such as ctc.com.
● Origin-Host is Diameter node 3 static configuration, such as, be host3.ctc.com.
● Destination-Realm is that Diameter node 3 generates, such as b.com
If ● be situation 1, namely Diameter node 3 does not know that the host name(of the object MAP node of request message is generally the Article 1 Diameter message for this roamer), now the Subscription-Id of Diameter request message is the IMSI of user, and Diameter request message does not comprise Destination-host.
● if be situation 2, namely Diameter node 3 knows the host name of the object MAP node of request message, and now the Destination-host of Diameter request message is the host name (being assumed to be GT23456.b.com) of target MAP node b.
● Diameter node 3 produces Session-ID and the Hop-by-hop value of response message according to the Diameter rule of standard.
Step 902, after IWF receives this request message A, is converted to the route data of MAP, message B is finally dealt into MAP node b by the relevant route data of Diameter message.Key data is as follows:
● calling party address GT is converted to the GT code (being such as GT3) of Diameter node 3 by inquiry dynamic mapping table according to the Origin-Host of request message by IWF.
● for the GT of called subscriber address, if situation 1, then IWF using the IMSI in the Subscription-Id of Diameter message as the GT(of called subscriber address of MAP message and the IMSI of user); If situation 2, then the Destination-host of Diameter message is converted to the GT(of the called subscriber address of MAP message and concrete equipment by IWF according to self-defining rule), such as Destination-host is GT23456.b.com, and the GT code after changing is 23456.
● Dialogue-ID is by the Diameter generate rule of IWF according to standard.
Step 903, MAP node b returns response message A, and the parameter that this response message carries comprises:
● calling party address, namely the GT code b of node b, supposes it is 23456.
● called subscriber address, the calling party address (being such as GT3) of the MAP request message that step B receives namely.
● Dialogue-ID, the Dialogue-ID of the MAP request message that step B receives namely.
Step 904, after IWF receives this response message A, is converted to the route data of Diameter message, and message B is finally dealt into Diameter node 3 by the relevant route data of MAP message.Key data is as follows:
● Origin-Realm is IWF static configuration, such as b.com
● Origin-Host adopts self-defining rule to be converted to by IWF according to calling party address.Such as GT b is 23456, and the Origin-Host after changing is GT23456.b.com.
● IWF produces Session-ID and the Hop-by-hop value of response message according to the Diameter rule of standard.
By adopting Diameter and the MAP route data conversion plan that the present invention relates to, international office IWF network element conveniently can realize the conversion of Diameter and MAP, thus facilitates the roaming intercommunication of LTE network and traditional 2G/3G network.
The international office IWF that be the present invention relates to by employing is without the need to the host name of a large amount of LTE network element in special configuration operator LTE network, avoid international office and LTE net in each network element operation management between synchronous coordination, ensure that the independence of international office IWF, thus more can carry out LTE and 2G/3G services of roaming fast and flexible.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (12)
1. for changing a method for routing parameter, it is characterized in that, comprising:
When receiving the first request message that Diameter node sends, extract the Diameter node host title that the first request message comprises;
Using the global title that is associated with Diameter node host title in the dynamic mapping table global title as Diameter node;
Judge the Hostname of the MAP node whether comprised in the first request message as callee;
If the first request message comprises the Hostname of MAP node, then according to pre-defined rule, the Hostname of MAP node is converted to the global title of MAP node, using as called subscriber address;
If do not comprise the Hostname of MAP node in the first request message, then using global title corresponding for the IMSI in user ID Subscription-ID as called subscriber address;
Second request message is sent to MAP node, and wherein the second request message comprises global title and the called subscriber address of Diameter node.
2. method according to claim 1, is characterized in that,
The step of the global title be associated with Diameter node host title in dynamic mapping table as the global title of Diameter node is comprised:
Whether inquiry exists the global title be associated with Diameter node host title in dynamic mapping table;
If there is the global title that is associated with Diameter node host title, then using the global title that is associated with the Diameter node host title global title as Diameter node.
3. method according to claim 2, is characterized in that,
If there is not the global title be associated with Diameter node host title, then in dynamic mapping table, select the global title that idle, using the global title as Diameter node.
4. method according to claim 3, is characterized in that, also comprises:
For each global title be assigned with in dynamic mapping table arranges timer;
When the global title be assigned with or the Diameter node host title that is associated with the global title be assigned with are queried, upgrade corresponding timer;
After timer expiry, discharge corresponding global title and the incidence relation of relevant Diameter node host title, corresponding global title is set to idle condition.
5. method according to claim 1, is characterized in that, also comprises:
When receiving the 3rd request message that MAP node sends, extract the called subscriber address of MAP node global title that the 3rd request message comprises and the Diameter node as callee;
According to predetermined rule, be the Hostname of MAP node by MAP node global title translation;
Judge that whether the called subscriber address of Diameter node is the global title of Diameter node;
If the called subscriber address of Diameter node is the global title of Diameter node, then dynamic mapping table is utilized to be Diameter node host title by the global title translation of Diameter node;
4th request message is sent to Diameter node, and wherein the 4th request message comprises Hostname and the Diameter node host title of MAP node.
6. method according to claim 5, is characterized in that, also comprises:
If the called subscriber address of Diameter node is the global title that IMSI is corresponding, then IMSI is converted to user ID Subscription-ID;
4th request message is sent to Diameter node, and wherein the 4th request message comprises Hostname and the user ID Subscription-ID of MAP node.
7. for changing an IWF device for routing parameter, it is characterized in that, comprising first interface unit, extraction unit, global title determining unit, the first recognition unit, called subscriber's address determination unit and the second interface unit, wherein:
First interface unit, for receiving the first request message that Diameter node sends;
Extraction unit, for receive when first interface unit Diameter node send the first request message time, extract the Diameter node host title that the first request message comprises;
Global title determining unit, for the global title that will be associated with Diameter node host title in the dynamic mapping table global title as Diameter node;
First recognition unit, for judging the Hostname of the MAP node whether comprised in the first request message as callee;
Called subscriber's address determination unit, for the judged result according to the first recognition unit, if the first request message comprises the Hostname of MAP node, then according to pre-defined rule, the Hostname of MAP node is converted to the global title of MAP node, using as called subscriber address; If do not comprise the Hostname of MAP node in the first request message, then using global title corresponding for the IMSI in user ID Subscription-ID as called subscriber address;
Second interface unit, for the second request message is sent to MAP node, wherein the second request message comprises global title and the called subscriber address of Diameter node.
8. device according to claim 7, is characterized in that,
Global title determining unit specifically comprises enquiry module and global title determination module, wherein:
Enquiry module, for inquiring about the global title whether existing in dynamic mapping table and be associated with Diameter node host title;
Global title determination module, for the Query Result according to enquiry module, if there is the global title that is associated with Diameter node host title, then using the global title that is associated with the Diameter node host title global title as Diameter node.
9. device according to claim 8, is characterized in that,
Global title determination module, also for the Query Result according to enquiry module, if there is not the global title be associated with Diameter node host title, then selects the global title that idle, using the global title as Diameter node in dynamic mapping table.
10. device according to claim 9, is characterized in that, also comprises timer management unit, wherein:
Timer management unit, for arranging timer for each global title be assigned with in dynamic mapping table, when the global title be assigned with or the Diameter node host title that is associated with the global title be assigned with are queried, upgrade corresponding timer, after timer expiry, discharge corresponding global title and the incidence relation of relevant Diameter node host title, corresponding global title is set to idle condition.
11. devices according to claim 7, is characterized in that, also comprise Hostname determining unit, the second recognition unit and converting unit, wherein:
Extraction unit is also for receiving the 3rd request message that MAP node sends during when the second interface unit, extract the called subscriber address of MAP node global title that the 3rd request message comprises and the Diameter node as callee;
MAP node global title translation, for according to predetermined rule, is the Hostname of MAP node by Hostname determining unit;
Second recognition unit, for judging that whether the called subscriber address of Diameter node is the global title of Diameter node;
Converting unit, for the judged result according to the second recognition unit, if the called subscriber address of Diameter node is the global title of Diameter node, then utilizes dynamic mapping table to be Diameter node host title by the global title translation of Diameter node; Then indicate first interface unit that the 4th request message is sent to Diameter node, wherein the 4th request message comprises Hostname and the Diameter node host title of MAP node.
12. devices according to claim 11, is characterized in that, also comprise:
IMSI, also for the judged result according to the second recognition unit, if the called subscriber address of Diameter node is the global title that IMSI is corresponding, is then converted to user ID Subscription-ID by converting unit; Then indicate first interface unit that the 4th request message is sent to Diameter node, wherein the 4th request message comprises Hostname and the user ID Subscription-ID of MAP node.
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