CN104717626A - Session routing information sharing method, device and system - Google Patents
Session routing information sharing method, device and system Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W40/246—Connectivity information discovery
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Abstract
The invention discloses a session routing information sharing method, device and system. The method includes the steps that DRA network elements receive a Gx interface session request message, PCRF network elements are selected, and dynamic session binding information is stored and includes the IP address of user equipment and host names of the PCRF network elements; after an Rx interface session request message is received, the IP address, carried in the Rx interface session request message, of the user equipment is used for querying the dynamic session binding information; if no corresponding records exist, a route redirection request is sent to the matched DRA network elements, and the IP address of the user equipment is carried in the route redirection request; the matched DRA units query the dynamic session binding information through the IP address and feed back the host names of the corresponding PCRF network elements; after the DRA network elements receive the host names of the PCRF network elements, the route of the Rx interface session request message is redirected to the corresponding PCRF network element. Routing information sharing can be achieved between the DRA network elements of different manufacturers, and no synchronous interfaces need to be opened; after a fault is removed, addressing of the Rx interface session request message is flexibly achieved under the condition that no local dynamic session binding information exists.
Description
Technical field
The present invention relates to communication technical field, especially relate to a kind of session routing iinformation and share method, apparatus and system.
Background technology
At LTE(Long Term Evolution, Long Term Evolution) in system, introduce Diameter(diameter protocol) signaling interface, it needs DRA(Diameter Routing Agent, Diameter route agent) network element switching Diameter signaling.Concrete, after introducing LTE, network will provide mobile management and service bearer passage for user, the network architecture as shown in Figure 1, ownership place HSS(Home SubscriberServer, attaching position register) store user data according to user number section in database.When user roams into visited place MME(Mobility Management Entity, Mobility Management Entity) under network element time, this MME network element can upgrade and authorizing procedure to user attaching HSS launch position, and these flow processs are all adopt Diameter signaling protocol to realize in a network.In addition, also having PCC(Policy and ChargingControl, strategy and charging control) Gx, Rx, S9 interface of framework also can use Diameter.
Further, under the user in HSS can roam into any one MME network element of the whole network, the user namely under a MME network element may belong to any one HSS of the whole network, just there is full annexation between such the whole network MME network element and the whole network HSS; Under PCC framework, different pieces of information business is used all to adopt ownership place PCRF(Policy and Charging Rules Function during user's National roaming, strategy and charging rule functions) network element carries out policy control, the user being carried out policy control by a PCRF network element can roam into any one PGW(Packet Data Gateway of the whole network, packet data gateway) under, user under a PGW may access any one PCRF network element of the whole network, just there is full annexation between such the whole network PGW and PCRF network element.Based on this, in order to maintenance and management is convenient, DRA network element can be used when realizing Diameter signalling route, namely to be transferred all signalings between MME network element and HSS or between PGW and PCRF network element by DRA network element, to avoid entirely connecting the whole network data configuring maintenance problem brought.In addition, in order to ensure security reliability, DRA network element will be disposed in pairs, backup each other, and load sharing.
At introducing VoLTE(based on IMS(IP Multimedia Subsystem, IP multimedia system) speech business) after, in order to ensure speech service quality, introduce conversation strategy controlling mechanism, namely, when user makes a call, need to set up dedicated bearer according to session control policy application.In the process of establishing of dedicated bearer, AF(Application Function can be related to, application function) Rx interface between network element and PCRF network element, as shown in Figure 2, the process of establishing of this dedicated bearer comprises the following steps corresponding network configuration:
Step 1, UE(User Equipment, subscriber equipment) set up default bearing, in this process of establishing, PGW can send Gx interface session request message by DRA network element to PCRF network element, by PCRF network element after receiving the Gx interface session request message from DRA network element, for UE sets up default bearing.
Step 2, UE are by the default bearing request of making a call, and in the process of the UE request of making a call, AF network element will send Rx interface conversation request message by DRA network element to PCRF network element, by PCRF network element after receiving the special Rx interface conversation request message from DRA network element, for UE sets up dedicated bearer.
In above process, for UE sets up the process need of default bearing and dedicated bearer by same PCRF network element control, but because DRA network element is disposed in pairs, therefore the DRA network element to PCRF network element transmission Gx interface session request message and Rx interface conversation request message may not be same DRA network element, now Gx interface session request message and Rx interface conversation request message cannot be sent on same PCRF network element by two DRA network elements, then cause the dedicated bearer process of establishing failure of UE, and the use sense affecting user is subject to.
Summary of the invention
The embodiment of the present invention provides a kind of session routing iinformation to share method, apparatus and system, to ensure Gx interface session request message and Rx interface conversation request message to be sent on same PCRF network element.
In order to achieve the above object, the embodiment of the present invention provides a kind of session routing iinformation to share method, the method is applied in the strategy and charging control PCC network comprising Liang Ge Diameter route agent DRA network element, described two DRA network elements match DRA network element each other, said method comprising the steps of:
DRA network element receives Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; Described DRA network element is after receiving described Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element;
Described DRA network element, after receiving Rx interface conversation request message, utilizes the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores; If the record that in described dynamic session binding information, the IP address of this subscriber equipment is not corresponding, then the pairing DRA network element to described DRA network element sends redirection of router request, and carries the IP address of this subscriber equipment in described redirection of router request; The dynamic session binding information matching described in the IP address lookup of this subscriber equipment and DRA network element stores is utilized by described pairing DRA network element, and the host name of PCRF network element corresponding to the IP address returning this subscriber equipment;
Described DRA network element, after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
The embodiment of the present invention provides a kind of Diameter route agent DRA network element, is applied in the strategy and charging control PCC network comprising two DRA network elements, and described two DRA network elements match DRA network element each other, and described DRA network element specifically comprises:
Maintenance module, for receiving Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; After receiving described Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element;
First enquiry module, for after receiving Rx interface conversation request message, utilizes the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores;
First sending module, during for the IP address of this subscriber equipment is not corresponding in described dynamic session binding information record, pairing DRA network element to described DRA network element sends redirection of router request, and carries the IP address of this subscriber equipment in described redirection of router request; The dynamic session binding information matching described in the IP address lookup of this subscriber equipment and DRA network element stores is utilized by described pairing DRA network element, and the host name of PCRF network element corresponding to the IP address returning this subscriber equipment;
Second sending module, for after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
The embodiment of the present invention provides a kind of session routing iinformation shared system, and this system comprises Liang Ge Diameter route agent DRA network element, and described two DRA network elements match DRA network element each other, wherein:
DRA network element, for receiving Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; After receiving Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element; After receiving Rx interface conversation request message, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores; If the record that in described dynamic session binding information, the IP address of this subscriber equipment is not corresponding, then the pairing DRA network element to described DRA network element sends redirection of router request, carries the IP address of this subscriber equipment in described redirection of router request;
Pairing DRA network element, for after receiving the redirection of router request from described DRA network element, utilize the dynamic session binding information matching described in the IP address lookup of the subscriber equipment carried in described redirection of router request and DRA network element stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment, and the host name of this PCRF network element is sent to described DRA network element;
Described DRA network element, also for after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
Compared with prior art, the embodiment of the present invention at least has the following advantages: in the embodiment of the present invention, can ensure that Gx interface session request message and Rx interface conversation request message are sent on one PCRF network element by two DRA network elements, avoid the dedicated bearer of UE to set up unsuccessfully, improve user's use sense and be subject to.The routing iinformation that said process can realize between different manufacturers DRA network element is shared, without the need to open sync cap, avoid the Forwarding Delay increasing all Gx interface related news, and local without the addressing that can realize Rx interface conversation request message when dynamic session binding information flexibly after fault recovery.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, 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 for user provides the network diagram of mobile management and service bearer passage in prior art;
Fig. 2 is the schematic network structure of the process of establishing of dedicated bearer in prior art;
Fig. 3 is that a kind of session routing iinformation that the embodiment of the present invention one provides shares method flow diagram;
Fig. 4 is the structural representation of a kind of DRA network element that the embodiment of the present invention two proposes.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.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.
Embodiment one
For problems of the prior art, the embodiment of the present invention one proposes a kind of session routing iinformation and shares method, and the method is applied to and comprises in the PCC network of two DRA network elements, and these two DRA network elements match DRA network element each other.Take Fig. 2 as the application scenarios schematic diagram of the embodiment of the present invention one, DRA network element 1 and DRA network element 2 match DRA network element each other, and namely DRA network element 1 is the pairing DRA network element of DRA network element 2, and DRA network element 2 is pairing DRA network elements of DRA network element 1.In addition, being Gx interface between PGW and DRA network element, is Rx interface between AF network element and DRA network element.
Under above-mentioned application scenarios, as shown in Figure 3, this carrying establishing method comprises the following steps:
Step 301, DRA network element receives Gx interface session request message, and carries the IP address of the subscriber equipment for asking to set up default bearing in this Gx interface session request message.
Wherein, this Gx interface session request message is used for setting up default bearing, is the message based on Gx interface, and namely this Gx interface session request message is that PGW sends to DRA network element by Gx interface.
Step 302, DRA network element is after receiving Gx interface session request message, select PCRF network element, and dynamic session binding information is stored on this DRA network element, at least comprise the IP address of the subscriber equipment carried in Gx interface session request message and the host name of PCRF network element in this dynamic session binding information.
Wherein, DRA network element, after selection PCRF network element, also needs the Gx interface session request message self received to send to the PCRF network element of this selection, sets up default bearing by PCRF network element.
In the embodiment of the present invention, DRA network element is after receiving Gx interface session request message, corresponding PCRF network element can be selected for subscriber equipment, and this Gx interface session request message is sent to this PCRF network element, and store dynamic session binding information on this DRA network element, and in this dynamic session binding information, at least comprise the IP address of subscriber equipment and the host name of PCRF network element.
Further, also carry user ID, APN(AccessPoint Name, APN in this Gx interface session request message), Session ID(session identification) etc. information; Based on this, in this dynamic session binding information, at least include the corresponding relation between the IP address of subscriber equipment, the host name of PCRF network element, user ID, APN, Session ID.
Under the application scenarios shown in Fig. 2, after DRA network element 1 receives the Gx interface session request message of the Gx interface of subscriber equipment 1, this Gx interface session request message is sent to PCRF network element 1, and store dynamic session binding information on this DRA network element 1, and this dynamic session binding information comprises the corresponding relation between the IP address of subscriber equipment 1, the host name of PCRF network element 1, user ID, APN, Session ID.After DRA network element 2 receives the Gx interface session request message of the Gx interface of subscriber equipment 2, this Gx interface session request message is sent to PCRF network element 2, and store dynamic session binding information on this DRA network element 2, and this dynamic session binding information comprises the corresponding relation between the IP address of subscriber equipment 2, the host name of PCRF network element 2, user ID, APN, Session ID.
Step 303, DRA network element receives Rx interface conversation request message, and carries the IP address of the subscriber equipment for asking to set up dedicated bearer in this Rx interface conversation request message.
Wherein, this Rx interface conversation request message is used for setting up dedicated bearer, is the message based on Rx interface, and namely this Rx interface conversation request message is that AF network element sends to DRA network element by Rx interface.
Step 304, DRA network element, after receiving Rx interface conversation request message, utilizes the dynamic session binding information that the IP address lookup DRA network element of the subscriber equipment carried in Rx interface conversation request message stores.If there is the IP address corresponding record of subscriber equipment in dynamic session binding information, perform step 305.If there is no the IP address corresponding record of subscriber equipment in dynamic session binding information, perform step 306.
Step 305, DRA network element obtains the host name of the PCRF network element of IP address (the IP address of the subscriber equipment carried in the Rx interface conversation request message) correspondence of subscriber equipment from dynamic binding session information, and the PCRF network element sending to the host name of this PCRF network element corresponding Rx interface conversation request message.
Step 306, DRA network element sends redirection of router request to the pairing DRA network element of this DRA network element, and carries the IP address of this subscriber equipment in this redirection of router request.Wherein, the IP address of this subscriber equipment is specially the IP address of the subscriber equipment carried in Rx interface conversation request message.
Step 307, pairing DRA network element is after receiving redirection of router request, utilize the dynamic session binding information that this pairing of IP address lookup DRA network element of subscriber equipment stores, obtain the host name of PCRF network element corresponding to the IP address of this subscriber equipment, and return the host name of this PCRF network element to DRA network element.
Concrete, pairing DRA network element is after receiving the redirection of router request from DRA network element, utilize the dynamic session binding information that this pairing of IP address lookup DRA network element of the subscriber equipment carried in this redirection of router request stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment, and the host name of PCRF network element corresponding for the IP address of this subscriber equipment is sent to DRA network element.Further, at pairing DRA network element, the host name of PCRF network element corresponding for the IP address of this subscriber equipment is sent in the process of DRA network element, pairing DRA network element sends redirection of router response to DRA network element, carry the host name of this PCRF network element and redirection of router instruction in the response of this redirection of router, and the instruction of this redirection of router is used to indicate Rx interface conversation request message redirection of router that DRA network element receives by DRA network element to PCRF network element corresponding to the host name of this PCRF network element.
Step 308, DRA network element, after the host name receiving PCRF network element, utilizes the host name of this PCRF network element by Rx interface conversation request message redirection of router to corresponding PCRF network element.
In the embodiment of the present invention, DRA network element is after receiving the redirection of router request from the pairing DRA network element of this DRA network element, utilize the dynamic session binding information that this DRA of IP address lookup network element of the subscriber equipment carried in this redirection of router request stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment, and the host name of PCRF network element corresponding for the IP address of this subscriber equipment is sent to pairing DRA network element.Further, at DRA network element, the host name of this PCRF network element is sent in the process of pairing DRA network element, DRA network element sends redirection of router response to pairing DRA network element, carry the host name of this PCRF network element and redirection of router instruction in the response of this redirection of router, and the instruction of this redirection of router is used to indicate Rx interface conversation request message redirection of router that pairing DRA network element receives by pairing DRA network element to PCRF network element corresponding to the host name of this PCRF network element.
DRA network element 1 stores dynamic session binding information on DRA network element 1, and this dynamic session binding information comprises the corresponding relation between the IP address of subscriber equipment 1 and the host name of PCRF network element 1; DRA network element 2 stores dynamic session binding information on DRA network element 2, and this dynamic session binding information comprises the corresponding relation between the IP address of subscriber equipment 2 and the host name of PCRF network element 2.
Under the application scenarios shown in Fig. 2, DRA network element 1 is after receiving Rx interface conversation request message, if the IP address of carrying in Rx interface conversation request message is the IP address of subscriber equipment 1, then DRA network element 1 utilizes the dynamic session binding information (can adopt dynamic data library inquiry) that the IP address lookup DRA network element 1 of subscriber equipment 1 stores, now there is the record that the IP address of subscriber equipment 1 is corresponding in dynamic session binding information, namely the host name of PCRF network element 1 corresponding to the IP address of this subscriber equipment 1 is obtained, the destination address of Rx interface conversation request message is replaced with the IP address of PCRF network element 1, and the PCRF network element 1 Rx interface conversation request message being sent to the IP address of this PCRF network element 1 corresponding.
Under the application scenarios shown in Fig. 2, DRA network element 1 is after receiving Rx interface conversation request message, if the IP address of carrying in Rx interface conversation request message is the IP address of subscriber equipment 2, DRA network element 1 utilizes the dynamic session binding information (can adopt dynamic data library inquiry) that the IP address lookup DRA network element 1 of subscriber equipment 2 stores, now there is no the record that the IP address of subscriber equipment 2 is corresponding in dynamic session binding information, DRA network element 1 sends redirection of router request to DRA network element 2, and (what now send is the IP address of subscriber equipment 2 to carry the IP address of subscriber equipment 2 in redirection of router request, instead of Rx interface conversation request message).DRA network element 2 is after receiving redirection of router request, utilize the dynamic session binding information that the IP address lookup DRA network element 2 of subscriber equipment 2 stores, obtain the host name of PCRF network element 2 corresponding to the IP address of subscriber equipment 2, and return the host name of this PCRF network element 2 to DRA network element 1.DRA network element 1 is after the host name receiving PCRF network element 2, the destination address of Rx interface conversation request message is replaced with the host name of PCRF network element 2, and by this Rx interface conversation request message redirection of router to PCRF network element 2 corresponding to the host name of this PCRF network element 2.
In sum, in the embodiment of the present invention, can ensure that Gx interface session request message and Rx interface conversation request message are sent on one PCRF network element by two DRA network elements, avoid the dedicated bearer of UE to set up unsuccessfully, improve user's use sense and be subject to.The routing iinformation that said process can realize between different manufacturers DRA network element is shared, without the need to open sync cap, avoid the Forwarding Delay increasing all Gx interface related news, and local without the addressing that can realize Rx interface conversation request message when dynamic session binding information flexibly after fault recovery.
Embodiment two
Based on the inventive concept same with said method, a kind of Diameter route agent DRA network element is proposed in the embodiment of the present invention two, be applied in the strategy and charging control PCC network comprising two DRA network elements, and described two DRA network elements match DRA network element each other, as shown in Figure 4, described DRA network element specifically comprises:
Maintenance module 11, for receiving Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; After receiving described Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element;
First enquiry module 12, for after receiving Rx interface conversation request message, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores;
First sending module 13, during for the IP address of this subscriber equipment is not corresponding in described dynamic session binding information record, pairing DRA network element to described DRA network element sends redirection of router request, and carries the IP address of this subscriber equipment in described redirection of router request; The dynamic session binding information matching described in the IP address lookup of this subscriber equipment and DRA network element stores is utilized by described pairing DRA network element, and the host name of PCRF network element corresponding to the IP address returning this subscriber equipment;
Second sending module 14, for after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
This DRA network element also comprises: the 3rd sending module 15, after the dynamic session binding information stored on the described DRA network element of inquiry, when the record having the IP address of this subscriber equipment corresponding in described dynamic session binding information, the host name of PCRF network element corresponding to the IP address of this subscriber equipment is obtained from described dynamic session binding information, and by PCRF network element that described Rx interface conversation request message sends to the host name of this PCRF network element corresponding.
This DRA network element also comprises: the second enquiry module 16, for after receiving the redirection of router request from the pairing DRA network element of described DRA network element, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment carried in described redirection of router request stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment; 4th sending module 17, for sending to described pairing DRA network element by the host name of this PCRF network element.Described 4th sending module 17, specifically for sending redirection of router response to described pairing DRA network element, carry host name and the redirection of router instruction of this PCRF network element in the response of described redirection of router, and the instruction of described redirection of router is used to indicate Rx interface conversation request message redirection of router that described pairing DRA network element receives by described pairing DRA network element to PCRF network element corresponding to the host name of this PCRF network element.
Based on above-mentioned Module Division mode, DRA network element comprises maintenance module 11, first enquiry module 12, first sending module 13, second sending module 14, the 3rd sending module 15 and the second enquiry module 16.For Rx interface conversation request message and the Gx interface session request message of same user, then the Module Division of DRA network element reception Rx interface conversation request message or Gx interface session request message is as follows:
(1) if DRA network element receives Gx interface session request message, but do not receive corresponding Rx interface conversation request message, then DRA network element comprises: maintenance module 11, for receiving Gx interface session request message, in Gx interface session request message, carry the IP address of the subscriber equipment for asking to set up default bearing; After receiving Gx interface session request message, select PCRF network element, and store dynamic session binding information on DRA network element, and dynamic session binding information at least comprises the IP address of subscriber equipment and the host name of PCRF network element; Second enquiry module 16, for after receiving the redirection of router request from the pairing DRA network element of DRA network element, utilize the dynamic session binding information that the IP address lookup DRA network element of the subscriber equipment carried in redirection of router request stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment; 4th sending module 17, for sending to pairing DRA network element by the host name of this PCRF network element; 4th sending module 17, specifically for sending redirection of router response to pairing DRA network element, carry the host name of this PCRF network element and redirection of router instruction in redirection of router response, and redirection of router instruction is used to indicate pairing DRA network element by the Rx interface conversation request message redirection of router that receives to PCRF network element corresponding to the host name of this PCRF network element.
(2) if DRA network element receives Rx interface conversation request message, but do not receive corresponding Gx interface session request message, then DRA network element comprises: the first enquiry module 12, for after receiving Rx interface conversation request message, utilize the dynamic session binding information that the IP address lookup DRA network element of the subscriber equipment for asking to set up dedicated bearer carried in Rx interface conversation request message stores; 3rd sending module 15, for when the record having the IP address of this subscriber equipment corresponding in dynamic session binding information, the host name of PCRF network element corresponding to the IP address of this subscriber equipment is obtained from dynamic binding session information, and the PCRF network element sending to the host name of this PCRF network element corresponding Rx interface conversation request message; First sending module 13, during for the IP address of this subscriber equipment is not corresponding in dynamic session binding information record, the pairing DRA network element to DRA network element sends redirection of router request, and carries the IP address of this subscriber equipment in redirection of router request; The IP address lookup of this subscriber equipment is utilized to match the dynamic session binding information that DRA network element stores by pairing DRA network element, and the host name of PCRF network element corresponding to the IP address returning this subscriber equipment; Second sending module 14, for after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by Rx interface conversation request message redirection of router to corresponding PCRF network element.
Embodiment three
Based on the inventive concept same with said method, propose a kind of session routing iinformation shared system in the embodiment of the present invention two, this system comprises Liang Ge Diameter route agent DRA network element, and described two DRA network elements match DRA network element each other, wherein:
DRA network element, for receiving Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; After receiving Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element; After receiving Rx interface conversation request message, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores; If the record that in described dynamic session binding information, the IP address of this subscriber equipment is not corresponding, then the pairing DRA network element to described DRA network element sends redirection of router request, carries the IP address of this subscriber equipment in described redirection of router request;
Pairing DRA network element, for after receiving the redirection of router request from described DRA network element, utilize the dynamic session binding information matching described in the IP address lookup of the subscriber equipment carried in described redirection of router request and DRA network element stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment, and the host name of this PCRF network element is sent to described DRA network element;
Described DRA network element, also for after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
Described DRA network element, also for after receiving the redirection of router request from the pairing DRA network element of described DRA network element, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment carried in described redirection of router request stores, obtain the host name of PCRF network element corresponding to the IP address of this subscriber equipment, and send redirection of router response to described pairing DRA network element, host name and the redirection of router instruction of this PCRF network element is carried in described redirection of router response, and the instruction of described redirection of router is used to indicate Rx interface conversation request message redirection of router that described pairing DRA network element receives by described pairing DRA network element to PCRF network element corresponding to the host name of this PCRF network element,
Described pairing DRA network element, also for after receiving the redirection of router response from the host name carrying PCRF network element of DRA network element and redirection of router instruction, the Rx interface conversation request message redirection of router received by described pairing DRA network element is to PCRF network element corresponding to the host name of this PCRF network element.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. a session routing iinformation shares method, the method is applied in the strategy and charging control PCC network comprising Liang Ge Diameter route agent DRA network element, described two DRA network elements match DRA network element each other, it is characterized in that, said method comprising the steps of:
DRA network element receives Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; Described DRA network element is after receiving described Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element;
Described DRA network element, after receiving Rx interface conversation request message, utilizes the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores; If the record that in described dynamic session binding information, the IP address of this subscriber equipment is not corresponding, then the pairing DRA network element to described DRA network element sends redirection of router request, and carries the IP address of this subscriber equipment in described redirection of router request; The dynamic session binding information matching described in the IP address lookup of this subscriber equipment and DRA network element stores is utilized by described pairing DRA network element, and the host name of PCRF network element corresponding to the IP address returning this subscriber equipment;
Described DRA network element, after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
2. the method for claim 1, is characterized in that, described method also comprises:
After described DRA network element inquires about the dynamic session binding information that described DRA network element stores, if there is the record that the IP address of this subscriber equipment is corresponding in described dynamic session binding information, from described dynamic session binding information, then obtain the host name of PCRF network element corresponding to the IP address of this subscriber equipment, and by PCRF network element that described Rx interface conversation request message sends to the host name of this PCRF network element corresponding.
3. the method for claim 1, is characterized in that, described method also comprises:
Described DRA network element is after receiving the redirection of router request from the pairing DRA network element of described DRA network element, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment carried in described redirection of router request stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment, and the host name of this PCRF network element is sent to described pairing DRA network element.
4. method as claimed in claim 3, is characterized in that, the host name of this PCRF network element is sent to the process of described pairing DRA network element by described DRA network element, specifically comprises:
Described DRA network element sends redirection of router response to described pairing DRA network element, carry host name and the redirection of router instruction of this PCRF network element in the response of described redirection of router, and the instruction of described redirection of router is used to indicate Rx interface conversation request message redirection of router that described pairing DRA network element receives by described pairing DRA network element to PCRF network element corresponding to the host name of this PCRF network element.
5. a Diameter route agent DRA network element, is applied in the strategy and charging control PCC network comprising two DRA network elements, and described two DRA network elements match DRA network element each other, and it is characterized in that, described DRA network element specifically comprises:
Maintenance module, for receiving Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; After receiving described Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element;
First enquiry module, for after receiving Rx interface conversation request message, utilizes the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores;
First sending module, during for the IP address of this subscriber equipment is not corresponding in described dynamic session binding information record, pairing DRA network element to described DRA network element sends redirection of router request, and carries the IP address of this subscriber equipment in described redirection of router request; The dynamic session binding information matching described in the IP address lookup of this subscriber equipment and DRA network element stores is utilized by described pairing DRA network element, and the host name of PCRF network element corresponding to the IP address returning this subscriber equipment;
Second sending module, for after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
6. DRA network element as claimed in claim 5, is characterized in that, also comprise:
3rd sending module, after the dynamic session binding information stored on the described DRA network element of inquiry, when the record having the IP address of this subscriber equipment corresponding in described dynamic session binding information, the host name of PCRF network element corresponding to the IP address of this subscriber equipment is obtained from described dynamic session binding information, and by PCRF network element that described Rx interface conversation request message sends to the host name of this PCRF network element corresponding.
7. DRA network element as claimed in claim 5, is characterized in that, also comprise:
Second enquiry module, for after receiving the redirection of router request from the pairing DRA network element of described DRA network element, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment carried in described redirection of router request stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment;
4th sending module, for sending to described pairing DRA network element by the host name of this PCRF network element.
8. DRA network element as claimed in claim 7, it is characterized in that, described 4th sending module, specifically for sending redirection of router response to described pairing DRA network element, carry host name and the redirection of router instruction of this PCRF network element in the response of described redirection of router, and the instruction of described redirection of router is used to indicate Rx interface conversation request message redirection of router that described pairing DRA network element receives by described pairing DRA network element to PCRF network element corresponding to the host name of this PCRF network element.
9. a session routing iinformation shared system, is characterized in that, this system comprises Liang Ge Diameter route agent DRA network element, and described two DRA network elements match DRA network element each other, wherein:
DRA network element, for receiving Gx interface session request message, carries the IP address of the subscriber equipment for asking to set up default bearing in described Gx interface session request message; After receiving Gx interface session request message, selection strategy and charging rule functions PCRF network element, and store dynamic session binding information on described DRA network element, and described dynamic session binding information at least comprises the IP address of described subscriber equipment and the host name of described PCRF network element; After receiving Rx interface conversation request message, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment for asking to set up dedicated bearer carried in described Rx interface conversation request message stores; If the record that in described dynamic session binding information, the IP address of this subscriber equipment is not corresponding, then the pairing DRA network element to described DRA network element sends redirection of router request, carries the IP address of this subscriber equipment in described redirection of router request;
Pairing DRA network element, for after receiving the redirection of router request from described DRA network element, utilize the dynamic session binding information matching described in the IP address lookup of the subscriber equipment carried in described redirection of router request and DRA network element stores, with the host name of PCRF network element corresponding to the IP address obtaining this subscriber equipment, and the host name of this PCRF network element is sent to described DRA network element;
Described DRA network element, also for after the host name receiving PCRF network element, utilizes the host name of described PCRF network element by described Rx interface conversation request message redirection of router to corresponding PCRF network element.
10. system as claimed in claim 9, is characterized in that,
Described DRA network element, also for after receiving the redirection of router request from the pairing DRA network element of described DRA network element, utilize the dynamic session binding information that DRA network element described in the IP address lookup of the subscriber equipment carried in described redirection of router request stores, obtain the host name of PCRF network element corresponding to the IP address of this subscriber equipment, and send redirection of router response to described pairing DRA network element, host name and the redirection of router instruction of this PCRF network element is carried in described redirection of router response, and the instruction of described redirection of router is used to indicate Rx interface conversation request message redirection of router that described pairing DRA network element receives by described pairing DRA network element to PCRF network element corresponding to the host name of this PCRF network element,
Described pairing DRA network element, also for after receiving the redirection of router response from the host name carrying PCRF network element of DRA network element and redirection of router instruction, the Rx interface conversation request message redirection of router received by described pairing DRA network element is to PCRF network element corresponding to the host name of this PCRF network element.
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| CN201310684775.0A CN104717626A (en) | 2013-12-13 | 2013-12-13 | Session routing information sharing method, device and system |
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