CN101355561A - Session information management method and system for DRA - Google Patents
Session information management method and system for DRA Download PDFInfo
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Abstract
The invention discloses a method and a system for managing session messages of a Diameter router agent, wherein the method comprises the following steps that: a Diameter router at the visited locationsends a session ending message received from a strategy charging control terminal to a strategy and charging rule function at the visited place; the strategy and charging rule function at the visited location sends the session ending message to a Diameter router agent in a home network; the Diameter router agent in the home network sends the session ending message to a strategy and charging rule function in the home network; and the Diameter router agent in the home network and the Diameter router agent at the visited location respond respective session ending confirmation message from the strategy and charging rule functions of the networks to delete the session related message stored locally. The adoption of the method and the system ensures that the DRA responds IP-CAN session ending instructions generated by different PCC terminals, and deletes the message which is stored locally and is related to the IP-CAN session, thereby releasing the network resources occupied ineffectively, improving the network processing efficiency and avoiding the situation that the resources are occupied unnecessarily.
Description
Technical field
The present invention relates to communication field, concrete, relate to the session information management method and the system of a kind of Diameter route agent (Diameter Route Agent abbreviates DRA as).
Background technology
Third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) grouping system (the Evolved Packet System of evolution, abbreviate EPS as) by Universal Terrestrial Radio Access Network (the Evolved Universal Terrestrial RadioAccess Network of evolution, abbreviate E-UTRAN as), mobile management unit (MobilityManagement Entity, abbreviate MME as), gateway (Serving Gateway, abbreviate S-GW as), packet data network (Packet Data Network, abbreviate PDN as) gateway (PDN Gateway, abbreviate P-GW as), home subscriber server (HomeSubscriber Server, abbreviate HSS as), 3GPP authentication and authorization charging server (3GAuthorization Authentication Accounting, abbreviate the 3GPP aaa server as), "Policy and Charging Rules Function (Policy and Charging Rules Function abbreviates PCRF as) and other support nodes are formed.The position of above-mentioned each function network element and annexation are variable, and concrete position and annexation can be with reference to figure 1, Fig. 2, and Fig. 3.
Wherein, S-GW is the accessing gateway equipment that EPS links to each other with E-UTRAN, and S-GW transmits data between E-UTRAN and P-GW, and is responsible for pending datas such as paging are carried out buffer memory;
P-GW then is the borde gateway of EPS and PDN, is responsible for transmitting between EPS and PDN data etc.;
Internet protocol (the InternetProtocol that PCRF provides by Rx interface and operator, abbreviate IP as) the business network connection, and obtain IP operation information, on the other hand, PCRF links to each other with gateway device in the network by Gx/Gxa/Gxc interface (this interface is not shown in Fig. 1, Fig. 2, Fig. 3), and PCRF is responsible for initiating the foundation that IP carries, and is service quality (the Quality of Service of business datum, abbreviate QoS as) give security, and the control of chargeing.
The EPS support is communicated by letter with non-3GPP network.The intercommunication of EPS and non-3GPP network realizes that by the S2a/b/c interface P-GW is then as 3GPP network and the internetwork anchor point of non-3GPP.
Non-3GPP network comprises the non-3GPP network of trusted and trustless non-3GPP network.The IP of the non-3GPP network of trusted inserts and can directly be connected with EPS by P-GW by the S2a interface.The IP of trustless non-3GPP network inserts the data gateway (Evolved Packet Data Gateway abbreviates ePDG as) that needs through evolution and is connected with EPS by P-GW by interface S2b.
In the 3GPP network between EPS, strategy and charge execution function (Policyand charging enforcement function, abbreviate PCEF as) (not shown in Fig. 1, Fig. 2, Fig. 3) be present among the P-GW, PCRF passes through Gx interface exchange message as long as be connected the control that can finish all functions with P-GW between PCRF and P-GW.Interface when between P-GW and S-GW is based on proxy-mobile IP (Proxy Mobile IP, abbreviate PMIP as) time, there is bearing binding and event reporting function (Bearer Bindingand Event Report Function among the S-GW, abbreviate BBERF as), pass through Gxc interface exchange message between S-GW and the PCRF.When the non-3GPP network insertion of trusted, the also resident BBERF in the trusted non-3 GPP access network Central Shanxi Plain, between non-3GPP network access gateway of trusted and the PCRF by Gxa interface exchange message.Subscriber equipment (User Equipment, when UE) roaming, the S9 interface is as the interface of ownership place PCRF and vPCRF, simultaneously, for UE provides professional application function (Application Function, abbreviate AF as) send the business information that is used for generation strategy charging control (Policy andCharging Control abbreviates PCC as) strategy to PCRF by the Rx+ interface.
The public land mobile telephone network of EPS (Public Land Mobile Network, abbreviate PLMN as) in have a plurality of PCRF nodes usually, and all PCRF nodes belong to one or more Diameter (PCRF) territory, and the ability of all PCRF in same Diameter (PCRF) territory is mutually the same.UE is called an IP to the connection of PDN network and connects Access Network (IP Connectivity Access Network, IP-CAN) session, and the PCC strategy of an IP-CAN session can only be by a PCRF decision.
All be associated with same PCRF in order to ensure relevant all PCEF of an IP-CAN session or BBERF and for this IP-CAN session provides professional AF, EPS has introduced a logic function module in each Diameter (PCRF) territory, that is, and and DRA.When UE will set up an IP-CAN session of arriving PDN, be that a PCRF is selected in this IP-CAN session by DRA, PCEF, BBERF and the AF relevant with this IP-CAN session are associated with on the selected PCRF by DRA.PCEF, BBERF and AF set up the Diameter session with the PCRF that chooses respectively, and by these Diameter sessions transmission strategies that session is controlled to IP-CAN and business information etc.
In order to ensure DRA correctly with PCEF, BBERF and AF are associated with a PCRF, DRA will preserve and can the relevant information of this IP-CAN session of unique identification identify or the IP address with corresponding PCRF, the information of sign IP-CAN session has network access Identifier (the Network Access Identity of UE, abbreviate NAI as), the IP address of UE, and UE will insert APN (the Access Point Name of PDN, abbreviate APN as) etc., PCEF, BBERF and AF provide these information when the Diameter conversation message of foundation and PCRF, DRA searches the information of preservation, just can find corresponding PCRF.
At present, under roaming scence, deposit three kinds among the EPS IP is provided the framework of service.
First kind of framework is called as the local route, and as shown in Figure 1, P-GW is at home network, and provides IP operation (that is, AF is at home network) by home network operator.
Particularly, as shown in Figure 1, when UE is 3GPP user and when being positioned at visited network, after UE proposes the IP-CAN conversation request, this request at first can be sent to the S-GW of visited network, the S-GW of visited network sends to this request the P-GW of home network, after the P-GW of home network receives this IP-CAN conversation request, PCEF among the P-GW (not illustrating in the drawings) sends to request the DRA (hDRA) of home network, select the PCRF (hPCRF) of a home network by hDRA after, just can set up the IP-CAN session.
As shown in Figure 1, when UE is user in the non-3GPP IP of the trusted Access Network, after UE sends the IP-CAN conversation request, this request is sent to the P-GW of home network by the BBERF in the non-3GPP IP of the trusted IAD, but not the user who trusts non-3GPP network then needs request message is sent to P-GW via ePDG when inserting.After the request of user in user in the non-3GPP IP of trusted Access Network or the non-3GPP IP of the non-trust Access Network arrived P-GW, follow-up processing procedure was identical with 3GPP user's processing procedure, no longer repeated here.
Second kind of framework is called as local break-out and provides IP operation by home network operator, and as shown in Figure 2, P-GW is at visited network, and provides IP operation (that is, AF is at home network) by home network operator.
Particularly, as shown in Figure 2, when UE is 3GPP user and when being positioned at visited network, after UE proposes the IP-CAN conversation request, this request at first can be sent to the S-GW of visited network, the S-GW of visited network sends to this request the P-GW of visited network, after the P-GW of visited network receives this IP-CAN conversation request, PCEF among the P-GW (not illustrating in the drawings) sends to request the DRA (hDRA) of home network, select the PCRF (hPCRF) of a home network by this DRA after, just can set up the IP-CAN session.
When UE is user among the user in trusted non-3GPP IP Access Network or the non-3GPP IP of the non-trust Access Network, its conversation request is initiated mode with similar with reference to the mode of the user's initiation session in the described trusted of Fig. 1 non-3GPP IP Access Network or the non-3GPP IP of the non-trust Access Network, no longer repeats here.
The third framework is called as local break-out and provides IP operation by access zone network operator, and as shown in Figure 3, P-GW is at visited network, and provides IP operation (being that AF is at visited network) by visited network operator.
Particularly, as shown in Figure 3, when UE is 3GPP user, and when visited network, after UE proposes the IP-CAN conversation request, this request at first can be sent to the S-GW of visited network, the S-GW of visited network sends to this request the P-GW of visited network, after the P-GW of visited network receives this IP-CAN conversation request, PCEF among the P-GW (not illustrating in the drawings) sends to request the DRA (vDRA) of visited network, select the PCRF (vPCRF) of a visited network by this DRA after, just can set up the IP-CAN session.
When UE is user among the user in trusted non-3GPP IP Access Network or the non-3GPP IP of the non-trust Access Network, its conversation request is initiated mode with similar with reference to the mode of the user's initiation session in the described trusted of Fig. 1 non-3GPP IP Access Network or the non-3GPP IP of the non-trust Access Network, no longer repeats here.
DRA selects the specific implementation of PCRF that following three kinds of modes can be arranged.
Mode one, the Redirect mode.In this mode, when PCEF, BBERF and AF when PCRF sends the Diameter session and sets up request message, this message at first is sent to DRA.When if DRA does not also have the relevant information of this IP-CAN session, DRA can select a PCRF for this IP-CAN session, and sign or the address of selected PCRF returned to transmit leg (promptly, PCEF, BBERF and AF), if the relevant information of this IP-CAN session has been arranged among the DRA, then DRA returns to transmit leg (that is, PCEF, BBERF and AF) with sign or the address of the PCRF of correspondence.Send the Diameter session to selected PCRF again after the address of transmit leg (that is, PCEF, BBERF and AF) acquisition PCRF or the sign and set up request message.
Mode two, the Proxy mode.In this mode, when PCEF, BBERF and AF when PCRF sends the Diameter session and sets up request message, this message at first is sent to DRA.When if DRA does not also have the relevant information of this IP-CAN session, DRA can select a PCRF for this IP-CAN session, and give selected PCRF with this forwards, if the relevant information of this IP-CAN session has been arranged among the DAR, then DRA gives corresponding PCRF with this forwards.The affirmation message that PCRF sends also is transmitted to PCEF, BBERF or AF by DRA.
Mode three, the distortion of Proxy mode.In this mode, similar with the Proxy mode, difference is that DRA can also send to PCEF, BBERF or AF to the address of PCRF when the affirmation message that forwarding PCRF returns.Like this in interacting message subsequently, PCEF, BBERF or AF can be directly and PCRF need alternately and not through DRA.
In three kinds of above-mentioned modes, DRA is for all message relevant with the Diameter session that are stored in wherein, and is when conversation end, different to the processing mode of these all message.For mode two, in the time will terminating the Diameter session, DRA can analyze in the message indication of termination session, all these sessions can be fallen through the message of DRA is deleted from DRA, that is, setting up the message of session from article one all can be deleted to other all message subsequently.And for mode one and mode three, because in interacting message subsequently, message is without DRA, and DRA can not delete among the DRA this session for information about according to the message of termination Diameter session.Therefore, under roaming scence, when Diameter session of termination, do not exist consistent method to delete the IP-CAN session related information of preserving among the DRA.
Problem at the IP-CAN session related information that can not preserve among the deletion DRA when the session termination that exists in aforesaid way one and the mode three does not propose effective solution at present as yet.
Summary of the invention
Consider and when session termination, to delete the problem of the IP-CAN session related information of preserving among the DRA in the correlation technique and make the present invention, for this reason, main purpose of the present invention is to provide the session information management method and the system of a kind of Diameter route agent, in order to solve the problems referred to above in the correlation technique.
The session information management method of a kind of Diameter route agent is provided according to an aspect of the present invention.
Session information management method according to Diameter of the present invention route agent comprises:
Visit ground Diameter route agent will send to visit ground "Policy and Charging Rules Function from the session termination message that the policy and charging control terminal receives;
Visit ground "Policy and Charging Rules Function sends to home network Diameter route agent with the session ending message;
Home network Diameter route agent sends to the home network "Policy and Charging Rules Function with the session ending message;
Home network Diameter route agent and visit ground Diameter route agent are in response to from its session termination acknowledge message and the local session related news of preserving of deletion of the "Policy and Charging Rules Function of place network separately.
Wherein, the processing of deleting its local session related news of preserving of home network Diameter route agent and visit ground Diameter route agent is specially:
Home network Diameter route agent receives the session termination acknowledge message from the home network "Policy and Charging Rules Function, the session related news that deletion home network Diameter route agent preserves;
Home network Diameter route agent sends to visit ground "Policy and Charging Rules Function with the session acknowledge message that terminates;
Visit ground "Policy and Charging Rules Function sends to visit ground Diameter route agent with the session acknowledge message that terminates;
In response to the session termination acknowledge message, its local session related news of preserving are deleted by visit ground Diameter route agent.
Wherein,, before sending the session termination acknowledge message, home network Diameter route agent further comprises at local network strategy and charging rule functions:
The home network "Policy and Charging Rules Function is deleted its local session related news of preserving.
Wherein,, further comprised before visit ground Diameter route agent sends the session termination acknowledge message at visit ground "Policy and Charging Rules Function: visit ground "Policy and Charging Rules Function is deleted its local session related news of preserving.
Wherein, the session related news be following one of at least: the binding relationship information of policy and charging control terminal and home network "Policy and Charging Rules Function; Policy and charging control terminal and the binding relationship information of visiting the ground "Policy and Charging Rules Function.
Wherein, the policy and charging control terminal be following one of at least: bearing binding and event reporting function, strategy and charge execution function, application function.
The conversation message management system of a kind of Diameter route agent is provided according to another aspect of the present invention.
Conversation message management system according to Diameter of the present invention route agent comprises:
Visit ground Diameter route agent, be used for its session termination message that receives from the policy and charging control terminal is sent to visit ground "Policy and Charging Rules Function, and in response to the session termination acknowledge message from visit ground "Policy and Charging Rules Function, the session related news that deletion visit ground Diameter route agent preserves;
Visit ground "Policy and Charging Rules Function, be used for and send to home network Diameter route agent from the session termination message of visit ground Diameter route agent, and will send to visit ground Diameter route agent from the session termination acknowledge message of local network Diameter route agent;
Home network Diameter route agent, be used for and send to the home network "Policy and Charging Rules Function from the session termination message of visit ground "Policy and Charging Rules Function, and in response to the session related news of preserving from the session termination acknowledge message of home network "Policy and Charging Rules Function deletion home network Diameter route agent, and will send to visit ground "Policy and Charging Rules Function from the session termination acknowledge message of local network strategy and charging rule functions;
The home network "Policy and Charging Rules Function is used for returning the session termination acknowledge message in response to the session termination message from home network Diameter route agent to home network Diameter route agent.
Wherein, also be used in response to session termination message the local session related news of preserving of deletion home network "Policy and Charging Rules Function from home network Diameter route agent in local network strategy and charging rule functions.
Wherein, "Policy and Charging Rules Function also is used in response to the session termination acknowledge message from home network Diameter route agent on visit ground, the local session related news of preserving of deletion visit ground "Policy and Charging Rules Function.
Wherein, the session related news be following one of at least: the binding relationship information of policy and charging control terminal and home network "Policy and Charging Rules Function; Policy and charging control terminal and the binding relationship information of visiting the ground "Policy and Charging Rules Function.
By technique scheme of the present invention, the IP-CAN session command for stopping that DRA is sent in response to different PCC terminals, the message relevant with the IP-CAN session that preserve this locality is deleted, be disabled the Internet resources that take, improved network processes efficient thereby discharged, avoided resource by unnecessary situation about taking.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the network configuration block diagram that route and IP operation are provided at home network for the roamer according to the EPS of correlation technique;
Fig. 2 is the network configuration block diagram that the EPS according to correlation technique provides route and IP operation is provided at home network at roaming network for the roamer;
Fig. 3 is the network configuration block diagram that route and IP operation are provided at roaming network for the roamer according to the EPS of correlation technique;
Fig. 4 is the flow chart according to the session information management method of the DRA of the inventive method embodiment;
Fig. 5 is the session information management method of DRA according to a preferred embodiment of the invention carries out the deletion of session related news in scene illustrated in figures 1 and 2 signaling process figure;
Fig. 6 is the session information management method of DRA according to a preferred embodiment of the invention carries out the deletion of session related news in scene shown in Figure 2 signaling process figure;
Fig. 7 is the session information management method of DRA according to a preferred embodiment of the invention carries out the deletion of session related news in scene shown in Figure 3 signaling process figure;
Fig. 8 is the block diagram according to the conversation message management system of the DRA of system embodiment of the present invention.
Embodiment
Functional overview
The present invention is directed to the problem that when session termination, to delete the IP-CAN session related information of preserving among the DRA in the correlation technique, consider the Message Processing characteristics of Different Strategies charging control terminal under the different scenes from angle comprehensive, system, session information management method and the system of a kind of DRA have been proposed, the IP-CAN session command for stopping that DRA sends in response to Different Strategies charging control terminal, can carry out unanimity to the message relevant among the DRA and delete effectively, be disabled the Internet resources that take, improved network processes efficient thereby discharged with the IP-CAN session.
Below in conjunction with accompanying drawing embodiment is elaborated.
Method embodiment
According to embodiments of the invention, provide the session information management method of a kind of DRA.
Fig. 4 shows the flow process according to the session information management method of the DRA of the inventive method embodiment, as shown in Figure 4, comprises step S402, step S404, step S406 and step S408 according to the session information management method of the DRA of the inventive method embodiment.
Below in conjunction with Fig. 4 above-mentioned steps is elaborated.
Step S402, vDRA will send to visit ground "Policy and Charging Rules Function (vPCRF) from the IP-CAN session termination message that policy and charging control (PCC) terminal receives;
Step S404, vPCRF sends to hDRA with IP-CAN session termination message;
Step S406, hDRA sends to hPCRF (hPCRF) with IP-CAN session termination message;
Step S408, hDRA and vDRA are in response to from its IP-CAN session termination acknowledge message and the local IP-CAN session related news of preserving of deletion of PCRF of place network separately.
Wherein, hDRA and the vDRA processing of deleting its local IP-CAN session related news of preserving is specially:
The first, hDRA receives the session termination acknowledge message from hPCRF, the IP-CAN session related news that deletion hDRA preserves;
Wherein, before hDRA sent IP-CAN session termination acknowledge message, this method may further include at hPCRF: hPCRF deletes its local session related news of preserving.
The second, hDRA sends to vPCRF with IP-CAN session termination acknowledge message;
The 3rd, vPCRF sends to vDRA with IP-CAN session termination acknowledge message;
Wherein, before vDRA sent IP-CAN session termination acknowledge message, this method may further include at vPCRF: vPCRF deletes its local IP-CAN session related news of preserving.
The 4th, in response to IP-CAN session termination acknowledge message, vDRA deletes its local IP-CAN session related news of preserving.
Wherein, above-mentioned IP-CAN session related news be following one of at least: the binding relationship information of PCC terminal and hPCRF; The binding relationship information of PCC terminal and vPCRF.
Wherein, above-mentioned PCC terminal be following one of at least: BBERF, PCEF, AF.
By technique scheme, can carry out unanimity to the message relevant among the DRA and delete effectively with the IP-CAN session.
Application under different scenes describes to the preferred embodiments of the present invention below.
Scene one, subscriber equipment (UE) roams to visited network, and, provide route by home network or visited network, operator provides IP operation by home network, promptly, P-GW is positioned at home network or visited network, and AF is positioned at home network, and concrete application scenarios can see figures.1.and.2.
Under this scene, when the IP-CAN session termination, BBERF is access zone network (UE is under the scene that local route or local route dredge), gateway control session termination flow process that gravity treatment causes has taken place as shown in Figure 5 owing to terminate IP-CAN session or BBERF of attachment removal taken place UE, this handling process comprises the steps:
Step 501: the BBERF that resides at S-GW or trusted non-3 GPP access network pass receives deletion gateway control session request message, network access Identifier (NAI), APN (APN) and the IP address of carrying UE in the message;
The gateway control session that step 502:BBERF will delete according to NAI and the APN inquiry of UE sends gateway control session termination Indication message to vDRA, and destination-address obtains according to configuration in the message, carries the NAI of UE, the IP address of APN or UE;
Step 503:vDRA is transmitted to vPCRF with the gateway control session Indication message that terminates;
Step 504:vPCRF sends gateway control session termination Indication message to hDRA, and the destination domain name is the domain name according to the home network of NAI acquisition in the message, the IP address of carrying NAI and the APN of UE or carrying UE;
Step 505:hDRA transmits message to hPCRF;
Step 506:hPCRF returns gateway control session terminate-ack message to hDRA;
The information of the local gateway control session of preserving of step 507:hDRA deletion is returned gateway control session terminate-ack message to vPCRF;
Step 508:vPCRF returns gateway control session terminate-ack message to vDRA;
The information of the local gateway control session of preserving of step 509:vDRA deletion is returned gateway control session terminate-ack message to BBERF;
Step 510:BBERF returns deletion gateway control session response message.
Scene two, UE roams into visited network, sets up the route of IP operation at visited network, and operator provides IP operation by visited network, that is and, P-GW is at visited network, and AF is at visited network, and this scene can be with reference to shown in Figure 2.
At this after the match, AF causes AF session termination flow process as shown in Figure 6 access zone network (UE is in local break-out and access zone network operator provides under the scene of IP operation) when business terminates, and this handling process comprises the steps:
Step 601:AF sends AF session termination request message to vDRA, and destination-address obtains according to configuration in the message, the IP address of carrying APN and UE;
Step 602:vDRA transmits the session termination messages to vPCRF;
Step 603:vPCRF sends AF session termination request message to hDRA, and the destination domain name is according to the domain name of the home network of NAI acquisition in the message, carries APN and IP address;
Step 604:hDRA is according to APN and IP address, and transmits the session termination messages to hPCRF;
Step 605:hPCRF deletes this AF relevant information according to session identification, and returns AF session termination acknowledge message to hDRA;
Step 606:hDRA deletes the information of pairing AF session among the hDRA, and returns session terminate-ack message to vPCRF;
After step 607:vPCRF receives this acknowledge message, the relevant information of deletion AF session, and return session termination to vDRA and confirm.
After step 608:vDRA received acknowledge message, pairing AF session information among the deletion vDRA returned the session terminate-ack to AF.
Scene three, UE roams into visited network, sets up the route of IP operation at visited network, and operator provides IP operation by visited network, that is and, P-GW and AF are all at visited network, and this scene can be with reference to situation shown in Figure 3.
Under this scene, UE inserts from E-UTRAN, perhaps from the non-3GPP network insertion of trusted, perhaps after trustless non-3GPP network insertion 3GPP system, UE initiates attachment removal, and the flow process of initiation IP-CAN session termination as shown in Figure 7, and this handling process comprises the steps:
Step 701: the BBERF that resides at S-GW or trusted non-3 GPP access network pass receives deletion IP-CAN conversation request message, NAI, APN and the IP address of carrying UE in the message;
Step 702:BBERF initiates gateway control session termination flow process;
Step 703:BBERF sends deletion IP-CAN conversation request to PCEF;
Step 704:PCEF sends IP-CAN session termination Indication message to vDRA, and destination-address is to obtain the IP address of carrying APN and UE according to configuration in the message;
Step 705:vDRA gives vPCRF with forwards;
The local IP-CAN session information of step 706:vPCRF deletion arrives hDRA with forwards;
Step 707:hDRA arrives hPCRF with forwards;
The local IP-CAN session information of step 708:hPCRF deletion sends acknowledge message to hDRA;
The local IP-CAN session information of preserving of step 709:hDRA deletion sends acknowledge message to vPCRF;
The local IP-CAN session information of step 710:vPCRF deletion sends acknowledge message to vDRA;
The local IP-CAN session information of preserving of step 711:vDRA deletion sends acknowledge message to PCEF;
Step 712:PCEF returns deletion IP-CAN session to BBERF and replys;
Step 713:BBERF returns deletion IP-CAN session and replys;
Carry out following steps for each AF session relevant with this IP-CAN session:
Step 714:hPCRF sends to vPCRF and loses communication notification messages;
Step 715:vPCRF sends to AF and loses communication notification messages;
Step 716:AF returns the notice response message to vPCRF;
Step 717:vPCRF returns the notice response message to hPCRF;
Step 718:AF initiates AF session termination flow process.
The session information management method of DRA provided by the invention can be under above-mentioned different scene, the IP-CAN session related information of still preserving among the deletion DRA behind session termination.
According to embodiments of the invention,, also provide the conversation message management system of a kind of DRA based on the session information management method of above-mentioned DRA.
System embodiment
Fig. 8 shows the block diagram according to the conversation message management system of DRA of the present invention, as shown in Figure 8, comprises according to the conversation message management system of DRA of the present invention:
Visit ground "Policy and Charging Rules Function 804 is used for the session termination message from vDRA 802 is sent to hDRA 806, and will sends to vDRA 802 from the session termination acknowledge message of hDRA806;
Wherein, also be used in response to session termination message the deletion hPCRF 808 local session related news of preserving from hDRA 806 at hPCRF 808.
Wherein, also be used in response to session termination acknowledge message the deletion vPCRF 804 local session related news of preserving from hDRA 806 at vPCRF 804.
Wherein, the session related news be following one of at least: the binding relationship information of plan PCC terminal and hPCRF; The binding relationship information of PCC terminal and vPCRF.
By technique scheme, the session information management method of the DRA that provides in can implementation method embodiment promptly, can be deleted the IP-CAN session related information of still preserving among the DRA behind session termination.
In sum, by means of technical scheme provided by the invention, the IP-CAN session command for stopping that DRA is sent in response to different PCC terminals, the message relevant with the IP-CAN session that preserve this locality is deleted, be disabled the Internet resources that take, improved network processes efficient thereby discharged, avoided resource by unnecessary situation about taking.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the session information management method of a Diameter route agent is characterized in that, comprising:
Visit ground Diameter route agent will send to visit ground "Policy and Charging Rules Function from the session termination message that the policy and charging control terminal receives;
Described visit ground "Policy and Charging Rules Function sends to home network Diameter route agent with described session termination message;
Described home network Diameter route agent sends to the home network "Policy and Charging Rules Function with described session termination message;
Described home network Diameter route agent and described visit ground Diameter route agent is in response to from its session termination acknowledge message and the local session related news of preserving of deletion of the "Policy and Charging Rules Function of place network separately.
2. method according to claim 1 is characterized in that, the processing that its local described session related news of preserving are deleted by described home network Diameter route agent and described visit ground Diameter route agent is specially:
Described home network Diameter route agent receives the session termination acknowledge message from described home network "Policy and Charging Rules Function, deletes the session related news that described home network Diameter route agent preserves;
Described home network Diameter route agent sends to described visit ground "Policy and Charging Rules Function with described session termination acknowledge message;
Described visit ground "Policy and Charging Rules Function sends to described visit ground Diameter route agent with described session termination acknowledge message;
In response to described session termination acknowledge message, its local session related news of preserving are deleted by described visit ground Diameter route agent.
3. method according to claim 2 is characterized in that,, further comprises before described home network Diameter route agent sends described session termination acknowledge message at described home network "Policy and Charging Rules Function:
Described home network "Policy and Charging Rules Function is deleted its local session related news of preserving.
4. method according to claim 2 is characterized in that,, further comprises before described visit ground Diameter route agent sends described session termination acknowledge message at described visit ground "Policy and Charging Rules Function:
Described visit ground "Policy and Charging Rules Function is deleted its local session related news of preserving.
5. method according to claim 1 is characterized in that, described session related news be following one of at least: the binding relationship information of described policy and charging control terminal and described home network "Policy and Charging Rules Function; The binding relationship information of described policy and charging control terminal and described visit ground "Policy and Charging Rules Function.
6. according to each described method in the claim 1 to 5, it is characterized in that, described policy and charging control terminal be following one of at least: bearing binding and event reporting function, strategy and charge execution function, application function.
7. the conversation message management system of a Diameter route agent is characterized in that, comprising:
Visit ground Diameter route agent, be used for its session termination message that receives from the policy and charging control terminal is sent to visit ground "Policy and Charging Rules Function, and, delete the session related news that described visit ground Diameter route agent preserves in response to session termination acknowledge message from described visit ground "Policy and Charging Rules Function;
Described visit ground "Policy and Charging Rules Function, be used for and will send to home network Diameter route agent from the described session termination message of described visit ground Diameter route agent, and will be from the session termination acknowledge message of described home network Diameter route agent Diameter route agent with sending to described visit;
Described home network Diameter route agent, be used for and send to the home network "Policy and Charging Rules Function from the described session termination message of described visit ground "Policy and Charging Rules Function, and in response to deleting the session related news that described home network Diameter route agent preserves from the session termination acknowledge message of described home network "Policy and Charging Rules Function, and will described session termination acknowledge message from described home network "Policy and Charging Rules Function "Policy and Charging Rules Function with sending to described visit;
Described home network "Policy and Charging Rules Function is used in response to the session termination message from described home network Diameter route agent, returns the session termination acknowledge message to described home network Diameter route agent.
8. system according to claim 7, it is characterized in that, also be used in response to session termination message at described home network "Policy and Charging Rules Function, delete the local session related news of preserving of described home network "Policy and Charging Rules Function from described home network Diameter route agent.
9. system according to claim 7, it is characterized in that, also be used for delete the session related news of the local preservation of described visit ground "Policy and Charging Rules Function at described visit ground "Policy and Charging Rules Function in response to session termination acknowledge message from described home network Diameter route agent.
10. system according to claim 7 is characterized in that, described session related news be following one of at least: the binding relationship information of described policy and charging control terminal and described home network "Policy and Charging Rules Function; The binding relationship information of described policy and charging control terminal and described visit ground "Policy and Charging Rules Function.
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| CN200810146792A CN101355561B (en) | 2008-08-29 | 2008-08-29 | Session information management method and system for DRA |
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| CN200810146792A CN101355561B (en) | 2008-08-29 | 2008-08-29 | Session information management method and system for DRA |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011134327A1 (en) * | 2010-04-26 | 2011-11-03 | 中兴通讯股份有限公司 | Method and system for determining policy and charging rules function |
| WO2015055063A1 (en) * | 2013-10-15 | 2015-04-23 | 中兴通讯股份有限公司 | Application access control method and application function entity apparatus |
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| CN101217383A (en) * | 2008-01-04 | 2008-07-09 | 中兴通讯股份有限公司 | A deletion method of functional association relation of strategy and charging rules |
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| WO2011134327A1 (en) * | 2010-04-26 | 2011-11-03 | 中兴通讯股份有限公司 | Method and system for determining policy and charging rules function |
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| US9806992B2 (en) | 2013-03-22 | 2017-10-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Re-routing of diameter commands |
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| CN110650467B (en) * | 2018-06-26 | 2022-03-29 | 华为技术有限公司 | Method and device for managing user data |
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