CN103731812A - Session affinity method, device, gateways, service side access device and server - Google Patents
Session affinity method, device, gateways, service side access device and server Download PDFInfo
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Abstract
The invention provides a session affinity method, a device, gateways, a service side access device and a server. The method is used for DRAs and includes the steps that a Gx session is established in any gateway of the multiple gateways, and the first corresponding relations among private network IP addresses of user equipment corresponding to the Gx session, private network area identification of a private network area to which the user equipment has access, APNs and affinity PCRFs are established after the Gx session is in affinity with one PCRF; after a first Rx session is established with the service side access device, the first Rx session is analyzed, and a first private network IP address of the first user equipment, access source information and the first APN are acquired; a first private network area corresponding to the access source information is determined; the first PCRF is determined according to the first corresponding relations; the first Rx session is in affinity with the first PCRF. Thus, the multi-PCRF addressing problem caused when existing network addresses repeat.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of session association method, device, gateway, business side access device and server.
Background technology
For the service of differentiation is provided to user, in network, introduce policy control and charging (PCC) framework, PCC has mainly defined policy control and function is controlled in the charging based on stream, has the management and control ability based on a plurality of dimensions such as business, user, accumulation use traffic, position/time, access styles and draws together the management and control means such as end-to-end priority setting (QoS), Flow Control, gate and differentiated charging.
The basic procedure that existing PCC controls as shown in Figure 1, first, networked users carry out business by strategy and charge execution function (PCEF) login to service server, service server is received after business request information, will and policy agent (PA) carry out the information interaction of business aspect, PA is issued to strategy and charging rule functions (PCRF) by service message, further, PCRF is used the business information from PA, in conjunction with obtaining user's strategy and billing control and subscription information from SPR and from the user profile of the Gx interface of PCEF, generate control strategy and be issued to PCEF, PCEF carries out the strategy of this business-level, thereby realize the tactful management and control to user.
Main interface in PCC has:
1.Rx, Rx is the reference point between policy agent (PA) and PCRF, for transmitting business and the session information (as IP address) from PA to PCRF, PCRF carries out strategic decision-making according to information such as business.
2.Gx, Gx is the reference point between PCEF and PCRF, by this interface, can realize the foundation of IP-CAN session connection and maintain; From PCEF to PCRF, initiate PCC decision requests; PCRF dynamically controls the functions such as PCC behavior on PCEF.Wherein, during session establishment request, the information that PCEF transmits to PCRF comprises the information such as private network IP, IMSI, MSISDN, and these information can be used as user ID.
In PCC framework, user reaches the standard grade and can between PCEF and PCRF, set up Gx session, when user's access service, sets up Rx session and business information is passed to PCRF between policy agent (PA) and PCRF.Only have same user's Gx session and Rx session association on same PCRF, this PCRF could produce the management and control strategy that is applicable to this user, otherwise PCRF can not synthetic user information, CAMEL-Subscription-Information, business information generation strategy, and PCC management and control flow process cannot complete.
Due to PCRF signaling processing ability and capacity limit, at existing network, exist a province to dispose the scene of many cover PCRF, may cause like this user's Gx session may be associated on different PCRF from Rx session, as shown in Figure 2, cause and can not generate strategy for user according to business information, thereby can not reach the object of contract network and business.
The key that solves above-mentioned PCC session association problem is on Gx interface and Rx interface, and PCEF and P-CSCF can find same PCRF by effective addressing mechanism.
In the standard of existing 3GPP, the addressing of regulation based on IP address can adopt DRA equipment to realize, and on Gx interface and Rx interface, passes through with a pair of DRA equipment, realizes same user's PCC session association.In existing network, IPv4 address resource is very nervous, can not be that each excited users distributes a public network address, and therefore existing situation is to be that each excited users distributes a private net address, transmits after converting public network address to by PCEF fire compartment wall NAT.Generally, between the IP address field that different PCEF distribute, there is repetition.Therefore IP address-based addressing scheme can face the problem that repeat user private network IP address, this problem causes on Rx interface, can not be unique by user's private network IP address find the associated PCRF of this user Gx session, Rx session and Gx session cannot be bound, correctly generation strategy.
This is described as follows for example.
Shown in Fig. 3, suppose that the private network IP address section that PCEF1 distributes to user is 10.0.0.50-10.0.0.100, the private network IP address section that PCEF2 distributes to user is 10.0.0.70-10.0.0.120, and 10.0.0.70-10.0.0.100 is overlapped address field.
As shown in Figure 3, UE1 and UE2 are respectively at two different PCEF (PCEF1, PCEF2) on, completing PDP activates, the IP address being assigned to is 10.0.0.100, UE1 is registered to PCRF1 by PCEF1, UE2 is registered to PCRF2 by PCEF2, and the routing addressing work of Gx interface, by completing with a pair of DRA equipment, is safeguarded the corresponding relation of UE IP address and PCRF on DRA equipment.
Suppose that UE1 access service generate Rx session by policy agent (PA) on Rx interface, this Rx session need find the PCRF serving into UE1, i.e. PCRF1, otherwise PCRF can not be associated the Gx session of UE1 and Rx session.The private network IP address of UE is carried in Rx session, and DRA equipment, by contrast UE private network IP address, finds the PCRF of this user Gx session registration, and then Rx session is also addressed on this PCRF.
Yet because UE1 in the record of DRA maintenance is used identical private network IP address 10.0.0.100 and corresponding different PCRF from UE2, so DRA equipment cannot be routed to correct PCRF, i.e. PCRF1 by Rx session according to the private network IP address of UE1.
Summary of the invention
The object of this invention is to provide a kind of session association method, device, gateway, business side access device and service server, many PCRF addressing issue while solving the repetition of existing network address.
To achieve these goals, the embodiment of the present invention provides a kind of session association method, and for the DRA of Diameter route agent, described DRA is connected with charging rule functions PCRF entity with a plurality of gateways and a plurality of strategy, and described session association method comprises:
With described a plurality of gateways in arbitrary gateway set up Gx session, and by described Gx session association after a PCRF, set up the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of initiating to DRA alternately with described service server;
Determine the first private network territory corresponding with described access source-information;
According to described the first corresponding relation, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
Wherein, preferably, described session association method is for IMS system, and described source-information is the private network domain identifier in the first private network territory of described first user equipment access.
Wherein, preferably, described private network domain identifier is gateway identification.
Wherein, preferably, described session association method is for non-IMS system, and described source-information is a NAT of described first user equipment access, according to described access source-information, determines that the first private network territory corresponding with described access source-information is specially:
According to the NAT setting up in advance, confirm the described first private network territory corresponding with a described NAT with the corresponding relation between gateway.
To achieve these goals, the embodiment of the present invention also provides a kind of session association device, and for DRA, described DRA is connected with a plurality of gateways and a plurality of PCRF, and described session association device comprises:
Corresponding relation building module, for setting up Gx session with arbitrary gateway of described a plurality of gateways, and by described Gx session association after a PCRF, set up the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Acquisition of information module, for setting up after a Rx session with business side access device, resolves a described Rx session, obtains the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of the mutual initiation with described service server;
Private network territory determination module, for determining the first private network territory corresponding with described access source-information;
PCRF determination module, for the first private network domain identifier and the equal corresponding PCRF of an APN definite according to described the first corresponding relation and described the first private network IP address, the first private network territory;
Relating module, for by a described Rx session association to a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment.
Wherein, preferably, described session association device is for IMS system, and described source-information is the private network domain identifier in the first private network territory of described first user equipment access.
Wherein, preferably, described private network domain identifier is gateway identification.
Wherein, preferably, described session association device is for non-IMS system, described source-information is the NAT sign of a NAT of described first user equipment access, and described private network territory determination module is specifically for confirming the described first private network territory corresponding with a described NAT according to the NAT setting up in advance with the corresponding relation between private network territory.
To achieve these goals, the embodiment of the present invention also provides a kind of Diameter DRA of route agent, is connected with charging rule functions PCRF entity with a plurality of gateways and a plurality of strategy, comprises the session association device described in above-mentioned any one.
To achieve these goals, the embodiment of the present invention also provides a kind of gateway, for the Yu Yi Diameter DRA of route agent, connect, and set up Gx session, described gateway send the subscriber equipment corresponding with described Gx session private network IP address, the private network domain identifier in the private network territory that subscriber equipment accesses and APN to described DRA, make described DRA can:
Described Gx session association, after a PCRF, is set up to the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of initiating to DRA alternately with described service server;
Determine the first private network territory corresponding with described access source-information;
According to described the first corresponding relation, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
To achieve these goals, the embodiment of the present invention also provides a kind of business side access device, for the Yu Yi Diameter DRA of route agent, sets up Rx session, and described business side access device comprises:
The first interactive module,, carries out alternately with described service server during to a service server initiating business request for a first user equipment, obtains the first private network IP address of first user equipment, and confirms access source-information and one the one APN;
Session establishment module, for setting up one the one Rx session with described DRA, carries the first private network IP address, access source-information and an APN of described first user equipment in a described Rx session, make described DRA can:
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of described first user equipment;
Determine the first private network territory corresponding with described access source-information;
According to the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of the private network IP address of the predetermined subscriber equipment corresponding with Gx session, subscriber equipment access, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
Wherein, preferably, described business side access device is specially P-CSCF in IMS system; In non-IMS system, be specially policy agent.
To achieve these goals, the embodiment of the present invention also provides a kind of service server, and for a business platform, described service server comprises:
Receiver module, a service request of initiating for receiving a first user equipment;
Acquisition module, for obtaining the first private network IP address of described first user equipment;
The second interactive module, for carrying out alternately with a business side access device, sends the first private network IP address of described first user equipment to described business side access device, make described business side access device can:
Obtain the first private network IP address of described first user equipment, and confirm access source-information and one the one APN;
The Yu Yi Diameter DRA of route agent sets up one the one Rx session, carries the first private network IP address, access source-information and an APN of described first user equipment in a described Rx session, make described DRA can:
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of described first user equipment;
Determine the first private network territory corresponding with described access source-information;
According to the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of the private network IP address of the predetermined subscriber equipment corresponding with Gx session, subscriber equipment access, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
The embodiment of the present invention has at least one of following beneficial effect:
The embodiment of the present invention is located unique PCRF by increasing a session source-information, PCRF addressing issue in the time of therefore can solving the repetition of existing network address;
The embodiment of the present invention can be applied under IMS system and non-IMS system;
In the embodiment of the present invention, while carrying out associated PCC session, do not need to change existing network framework, less to web influence.
Accompanying drawing explanation
Fig. 1 is the basic procedure schematic diagram that PCC controls;
Fig. 2 is the PCC session association schematic diagram under many PCRF deployed environment;
When Fig. 3 is private network IP address repetition, Gx/Rx session cannot be associated with same PCRF schematic diagram;
Fig. 4 is the schematic flow sheet of the session association method of the embodiment of the present invention;
Fig. 5 is that the embodiment of the present invention is carried out the schematic flow sheet of session association under IMS system;
Fig. 6 is that the embodiment of the present invention is carried out the schematic flow sheet of session association under non-IMS system;
Fig. 7 is the structural representation of the session association device of the embodiment of the present invention.
Embodiment
Before the embodiment of the present invention is elaborated, relevant or the similar solution that the problem that the prior art first embodiment of the present invention being related to exists and at present some patents propose is elaborated, so that better understand the embodiment of the present invention.
For the problems referred to above, the embodiment of the present invention provides a kind of session association method, and for the DRA of Diameter route agent, described DRA is connected with charging rule functions PCRF entity with a plurality of gateways and a plurality of strategy, as shown in Figure 4, described session association method comprises:
Said method is for the DRA of Diameter route agent equipment, when DRA with described a plurality of gateways in arbitrary gateway set up Gx session, and by described Gx session association after a PCRF, can set up the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
DRA is setting up after a Rx session with business side access device, resolves a described Rx session, obtains the first private network IP address, access source-information and an APN of first user equipment wherein; Here Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of initiating to DRA alternately with described service server;
DRA determines the first private network territory corresponding with described access source-information;
DRA according to before the private network IP address of subscriber equipment corresponding to the Gx session of setting up, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access, determine and the first private network domain identifier and the equal corresponding PCRF of an APN in described the first private network IP address, the first private network territory, now definite PCRF is unique;
Finally by a described Rx session association to a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment.Said method is in the newly-increased private network domain identifier parameter of Rx interface, and this parameter and user's private net address can one of unique location user, addressing PCRF.Because private net address under a NAT or under a PCEF can not repeat, therefore this newly-increased private network domain identifier parameter can represent by the sign of PCEF device identification or NAT, PCRF addressing issue in the time of can solving the repetition of existing network address by said process, guarantee on Gx interface and Rx interface, can correct addressing carry out the service for user to identical PCRF.
The session association method that the embodiment of the present invention provides can be applied in IMS system and non-IMS system, and this is respectively described below.
When for IMS system, now described source-information is the private network domain identifier in the first private network territory of described first user equipment access.
In IMS system, can carry out the sign as private network territory by the gateway identification in private network territory, by at P-CSCF place, the newly-increased PCEF according to VLAN configuration identifies and carries in Rx interface, and increase according to PCEF and identify the function of carrying out addressing in DRA equipment, utilize user private network IP address and two parameters of PCEF sign, by DRA equipment, inquired about, realize same user's Gx session and Rx session association, business side equipment is now P-CSCF.
Now packet domain core network PCEF equipment, DRA equipment, P-CSCF are had to following requirement, comprising:
During service request, user can will report to business platform in private network IP address data inserting bag;
Business platform should be able to be resolved the private net address in user data package, and is delivered to P-CSCF;
P-CSCF should be able to configure PCEF sign according to VLAN, and carries in Rx interface;
Rx interface should be able to increase the AVP of PCEF sign;
DRA equipment is answered the mapping table of pre-configured user private network IP address and PCEF sign;
User private network IP address and the PCEF sign that Rx session is carried should be able to be resolved and identify to DRA equipment, and can utilize private network IP address and two parameters of PCEF sign to carry out routing addressing, finally finds object PCRF.
For example, as shown in Figure 5: in network, have two user (UE1, UE2) by different PCEF (PCEF1, PCEF2) activate PDP, suppose to distribute to the private network IP address identical (being private network IPUE1 & UE2) of UE1 and UE2, now corresponding to same PCEF, there will not be private network IP address to repeat;
DRA sets up Gx session with PCEF1, PCEF2 respectively, and described Gx session is associated with respectively to PCRF1, PCRF2, is about to UE1 and is registered to PCRF1 by PCEF1, and UE2 is registered to PCRF2 by PCEF2;
Gx interface by DRA equipment based on IMSI statically-addressed, now, in DRA equipment, increased the function of carrying out addressing according to PCEF sign, in addressing information table, add PCEF identification item, and confirm APN, now APN can be the same, be APN UE1 & UE2, in DRA equipment, set up the private network IP address of subscriber equipment corresponding to described Gx session, the gateway identification in the private network territory of subscriber equipment access, the first corresponding relation between APN and associated PCRF, as shown in table 1, wherein comprise IMSI, private network IP address, PCEF sign, the information such as APN and PCRF mapping relations table:
When user UE1 access IMS business, can in SDP, carry the private net address of oneself, P-CSCF receives after user's sip message, initiate Rx session and carry business information, now, P-CSCF needs to identify according to the PCEF of VLAN configuration, and in Rx session, carries this PCEF sign, meanwhile, the AVP of the newly-increased PCEF sign of Rx interface;
The addressing of Rx interface is also realized by DRA equipment, and use with a pair of DRA with Gx port addressing, DRA equipment is received after this message, parse private network IP address and the PCEF sign of UE1, contrast table 1 carries out the routing addressing based on private network IP address and PCEF sign, finally determines correct PCRF.
When for non-IMS system, now described source-information is a NAT of described first user equipment access, according to described access source-information, determines that the first private network territory corresponding with described access source-information is specially:
According to the NAT setting up in advance, confirm the described first private network territory corresponding with a described NAT with the corresponding relation between private network territory.
In DRA equipment, increase the mapping relations table of the corresponding relation in network address translation (NAT) and private network territory, the private network domain identifier here can be gateway (PCEF) sign, and in PA place increase NAT sign, by private network IP and two parameters of PCEF sign, by DRA equipment, by bidimensional, inquired about, finally realize same user's Gx interface and Rx interface session association, business side equipment is now policy agent (PA).
Now packet domain core network PCEF equipment, DRA equipment, policy agent (PA) equipment are had to following requirement, comprising:
During service request, user should be able to will report to business platform the private network IP address data inserting bag obtaining from terminal;
Business platform should be able to be resolved the private net address in user data package, and user's private network IP address is delivered to policy agent (PA);
Policy agent (PA) should be able to increase NAT sign, and when initiating Rx session, carries user private network IP address and NAT sign;
DRA, when setting up Gx session routing addressing information table, should be able to comprise PCEF information and the user private network IP address at user's place;
DRA equipment is answered the mapping table of pre-configured NAT and PCEF;
User private network IP address and the NAT sign that Rx session is carried should be able to be resolved and identify to DRA equipment, and can utilize user private network IP address and two parameters of NAT sign to carry out twice inquiry, finally finds object PCRF.
This is described in detail as follows.
As shown in Figure 6:
In network, there are two user (UE1, UE2) by different PCEF (PCEF1, PCEF2) activate PDP, the private network IP address of supposing to distribute to UE1 and UE2 is identical, be private network IPUE1 & UE2, after now PCEF1 and PCEF2 should lay respectively at two NAT device, the situation that there will not be private network IP address to repeat under same NAT device, because network address planning, the public network IP address of the distribution of two NAT device does not repeat;
DRA sets up Gx session with PCEF1, PCEF2 respectively, and described Gx session is associated with respectively to PCRF1, PCRF2, is about to UE1 and is registered to PCRF1 by PCEF1, and UE2 is registered to PCRF2 by PCEF2;
Gx interface based on IMSI statically-addressed, now generates and has safeguarded Gx session routing addressing information table by DRA equipment in DRA equipment, as shown in table 2:
Table 2Gx session routing addressing information table
In addition, in DRA equipment, also need the corresponding relation between pre-configured NAT and PCEF, as shown in table 3:
| NAT1 | PCEF1～3 |
| NAT2 | PCEF 4～6 |
Table 3NAT table corresponding to PCEF
When user UE1 access service, report the private network IP address of oneself;
Business platform is initiated Rx session by the private network IP address informing business side access device (PA) of UE1 and by business side access device, increases NAT sign in business side access device, carries private network IP address and the NAT sign of UE1 in Rx session;
The addressing of Rx interface is also realized by DRA equipment, and uses with a pair of DRA with Gx port addressing.DRA equipment is received after this message, parses NAT sign, and contrast table 3 is inquired about for the first time, and the NAT pre-configured according to DRA obtains Gx session setup corresponding to this Rx session from PCEF1～3 with PCEF corresponding relation;
Utilize private network IP address and PCEF sign to inquire about for the second time by table 2, the PCRF obtaining as user's service is PCRF1, completes Rx interface addressing flow process.
In above-mentioned two systems, the Gx session of UE1 and Rx session are all successfully associated to PCRF1, complete PCC session association, PCRF1 is when carrying out associated between Rx session and Gx session, can be following mode: < mode one >DRA should carry out when associated with PCRF1 in a definite described Rx session, inform the sign of a described Rx session corresponding Gx session on PCRF1, PCRF1, when carrying out Gx and Rx session association, directly carries out association according to the sign of the corresponding Gx session of carrying in a described Rx session.
< mode two > also store the private network IP address of subscriber equipment, the first corresponding relation of the Gx session of the private network domain identifier of subscriber equipment access, APN and correspondence on PCRF1, at a described Rx session association to after on PCRF, according to described the second corresponding relation, determine and the first private network IP address in a described Rx session, the first private network domain identifier and the equal corresponding Gx session of an APN in the first private network territory.PCRF is when carrying out associated between Rx session and Gx session, and implementation is diversified, at this, does not enumerate.
The method providing according to the embodiment of the present invention is carried out associated PCC session, does not need to change existing network framework, less to web influence.
The embodiment of the present invention also provides a kind of session association device, and for DRA, described DRA is connected with a plurality of gateways and a plurality of PCRF, and as shown in Figure 7, described session association device comprises:
Corresponding relation building module, for setting up Gx session with arbitrary gateway of described a plurality of gateways, and by described Gx session association after a PCRF, set up the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Acquisition of information module, for setting up after a Rx session with business side access device, resolves a described Rx session, obtains the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of the mutual initiation with described service server;
Private network territory determination module, for determining the first private network territory corresponding with described access source-information;
PCRF determination module, for the first private network domain identifier and the equal corresponding PCRF of an APN definite according to described the first corresponding relation and described the first private network IP address, the first private network territory;
Relating module, for by a described Rx session association to a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment.
Wherein, preferably, described session association device is for IMS system, and described source-information is the private network domain identifier in the first private network territory of described first user equipment access.
Wherein, preferably, described private network domain identifier is gateway identification.
Wherein, preferably, described session association device is for non-IMS system, described source-information is the NAT sign of a NAT of described first user equipment access, and described private network territory determination module is specifically for confirming the described first private network territory corresponding with a described NAT according to the NAT setting up in advance with the corresponding relation between private network territory.
The embodiment of the present invention also provides a kind of Diameter DRA of route agent, is connected with charging rule functions PCRF entity with a plurality of gateways and a plurality of strategy, comprises the session association device described in above-mentioned any one.
The embodiment of the present invention also provides a kind of gateway, for the Yu Yi Diameter DRA of route agent, connect, and set up Gx session, described gateway send the subscriber equipment corresponding with described Gx session private network IP address, the private network domain identifier in the private network territory that subscriber equipment accesses and APN to described DRA, make described DRA can:
Described Gx session association, after a PCRF, is set up to the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of initiating to DRA alternately with described service server;
Determine the first private network territory corresponding with described access source-information;
According to described the first corresponding relation, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
The embodiment of the present invention also provides a kind of business side access device, for the Yu Yi Diameter DRA of route agent, sets up Rx session, and described business side access device comprises:
The first interactive module,, carries out alternately with described service server during to a service server initiating business request for a first user equipment, obtains the first private network IP address of first user equipment, and confirms access source-information and one the one APN;
Session establishment module, for setting up one the one Rx session with described DRA, carries the first private network IP address, access source-information and an APN of described first user equipment in a described Rx session, make described DRA can:
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of described first user equipment;
Determine the first private network territory corresponding with described access source-information;
According to the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of the private network IP address of the predetermined subscriber equipment corresponding with Gx session, subscriber equipment access, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
Wherein, preferably, business side access device is P-CSCF under IMS system; Under non-IMS system, it is policy agent.
The embodiment of the present invention also provides a kind of service server, and for a business platform, described service server comprises:
Receiver module, a service request of initiating for receiving a first user equipment;
Acquisition module, for obtaining the first private network IP address of described first user equipment;
The second interactive module, for carrying out alternately with a business side access device, sends the first private network IP address of described first user equipment to described business side access device, make described business side access device can:
Obtain the first private network IP address of described first user equipment, and confirm access source-information and one the one APN;
The Yu Yi Diameter DRA of route agent sets up one the one Rx session, carries the first private network IP address, access source-information and an APN of described first user equipment in a described Rx session, make described DRA can:
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of described first user equipment;
Determine the first private network territory corresponding with described access source-information;
According to the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of the private network IP address of the predetermined subscriber equipment corresponding with Gx session, subscriber equipment access, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. a session association method, for the DRA of Diameter route agent equipment, described DRA equipment is connected with charging rule functions PCRF entity with a plurality of gateways and a plurality of strategy, it is characterized in that, and described session association method comprises:
With described a plurality of gateways in arbitrary gateway set up Gx session, and by described Gx session association after a PCRF, set up the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of initiating to DRA alternately with described service server;
Determine the first private network territory corresponding with described access source-information;
According to described the first corresponding relation, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
2. session association method according to claim 1, is characterized in that, described session association method is for IMS system, and described source-information is the private network domain identifier in the first private network territory of described first user equipment access.
3. session association method as claimed in claim 2, is characterized in that, described private network domain identifier is gateway identification.
4. session association method according to claim 1, it is characterized in that, described session association method is for non-IMS system, described source-information is a NAT of described first user equipment access, according to described access source-information, determines that the first private network territory corresponding with described access source-information is specially:
According to the NAT setting up in advance, confirm the described first private network territory corresponding with a described NAT with the corresponding relation between private network territory.
5. a session association device, for DRA equipment, described DRA equipment is connected with a plurality of gateways and a plurality of PCRF, it is characterized in that, and described session association device comprises:
Corresponding relation building module, for setting up Gx session with arbitrary gateway of described a plurality of gateways, and by described Gx session association after a PCRF, set up the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Acquisition of information module, for setting up after a Rx session with business side access device, resolves a described Rx session, obtains the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of the mutual initiation with described service server;
Private network territory determination module, for determining the first private network territory corresponding with described access source-information;
PCRF determination module, for the first private network domain identifier and the equal corresponding PCRF of an APN definite according to described the first corresponding relation and described the first private network IP address, the first private network territory;
Relating module, for by a described Rx session association to a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment.
6. session association device according to claim 5, is characterized in that, described session association device is for IMS system, and described source-information is the private network domain identifier in the first private network territory of described first user equipment access.
7. session association device as claimed in claim 6, is characterized in that, described private network domain identifier is gateway identification.
8. session association device according to claim 5, it is characterized in that, described session association device is for non-IMS system, described source-information is the NAT sign of a NAT of described first user equipment access, and described private network territory determination module is specifically for confirming the described first private network territory corresponding with a described NAT according to the NAT setting up in advance with the corresponding relation between private network territory.
The 9.Yi Zhong Diameter DRA of route agent equipment, is connected with charging rule functions PCRF entity with a plurality of gateways and a plurality of strategy, it is characterized in that, comprises the session association device described in any one in claim 5 to 8.
10. a gateway, for the Yu Yi Diameter DRA of route agent equipment connection, and set up Gx session, it is characterized in that, described gateway send the subscriber equipment corresponding with described Gx session private network IP address, the private network domain identifier in the private network territory that subscriber equipment accesses and APN to described DRA, make described DRA can:
Described Gx session association, after a PCRF, is set up to the private network IP address of subscriber equipment corresponding to described Gx session, the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of subscriber equipment access;
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of first user equipment; Described Rx session is described first user equipment during to service server initiating business request, and described business side access device is according to the session of initiating to DRA alternately with described service server;
Determine the first private network territory corresponding with described access source-information;
According to described the first corresponding relation, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
11. 1 kinds of business side access devices, set up Rx session for the Yu Yi Diameter DRA of route agent, it is characterized in that, described business side access device comprises:
The first interactive module,, carries out alternately with described service server during to a service server initiating business request for a first user equipment, obtains the first private network IP address of first user equipment, and confirms access source-information and one the one APN;
Session establishment module, for setting up one the one Rx session with described DRA, carries the first private network IP address, access source-information and an APN of described first user equipment in a described Rx session, make described DRA can:
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of described first user equipment;
Determine the first private network territory corresponding with described access source-information;
According to the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of the private network IP address of the predetermined subscriber equipment corresponding with Gx session, subscriber equipment access, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
12. business side access devices as claimed in claim 11, is characterized in that, are P-CSCF in IMS system; In non-IMS system, it is policy agent.
13. 1 kinds of service servers, is characterized in that, described service server comprises:
Receiver module, a service request of initiating for receiving a first user equipment;
Acquisition module, for obtaining the first private network IP address of described first user equipment;
The second interactive module, for carrying out alternately with a business side access device, sends the first private network IP address of described first user equipment to described business side access device, make described business side access device can:
Obtain the first private network IP address of described first user equipment, and confirm access source-information and one the one APN; The Yu Yi Diameter DRA of route agent sets up one the one Rx session, carries the first private network IP address, access source-information and an APN of described first user equipment in a described Rx session, make described DRA can:
Setting up after a Rx session with business side access device, resolving a described Rx session, obtaining the first private network IP address, access source-information and an APN of described first user equipment;
Determine the first private network territory corresponding with described access source-information;
According to the first corresponding relation between private network domain identifier, APN and the associated PCRF in the private network territory of the private network IP address of the predetermined subscriber equipment corresponding with Gx session, subscriber equipment access, determine the first private network domain identifier and the equal corresponding PCRF of an APN with described the first private network IP address, the first private network territory;
To a described PCRF, make the described PCRF can an associated described Rx session and the Gx session corresponding with first user equipment a described Rx session association.
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