CN101060413B - Roaming policy and charging control method and system - Google Patents
Roaming policy and charging control method and system Download PDFInfo
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- CN101060413B CN101060413B CN2006100724761A CN200610072476A CN101060413B CN 101060413 B CN101060413 B CN 101060413B CN 2006100724761 A CN2006100724761 A CN 2006100724761A CN 200610072476 A CN200610072476 A CN 200610072476A CN 101060413 B CN101060413 B CN 101060413B
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Abstract
The provided cruise strategy and charge control method comprises: A. V-PCRF receives the authorized query from AGW to obtain application message from AF; B. V-PCRF sets the access strategy and charge rule according to obtained message and local strategy, and sends the result to AGW; and C. the latter executes the strategy and charge control to UE. This invention reduces signaling delay, and improves efficiency.
Description
Technical field
The present invention relates to mobile communication technology, the strategy when relating in particular to a kind of roaming the and charge control (Policy and Charging Control, PCC) method and system.
Background technology
Increasingly mature along with communication and the high development of information technology and IP Internet Protocol (IP) technology, the application of Internet (Internet) is popularized rapidly, people no longer are satisfied with single voice communication mode, and need brand-new multimedia communication mode.And simultaneously, mobile communications network is still the main path that people communicate by letter with fixed communication network, therefore, and the IPization of mobile communications network and fixed communication network, and the fusion of Internet and communication network just becomes the developing direction that industry is generally acknowledged undisputedly.That is to say, can support the IP multimedia communications system of multiple access technology to become the emphasis of Future Development.
IP Multimedia System (IP Multimedia Subsystem, IMS) be 3rd Generation Partnership Project (3rd Generation Partnership Project, a subsystem of finishing IP multimedia communication control of 3GPP) on the packet carrying network basis, introducing, it can be towards multiple access technology, according to personalized user data, the shielding user mode access, the degree of opening of control professional ability, provide the IP multimedia communication to experience, satisfied multimedia service in safety, charge, roaming and service quality (Quality of Service, the demand of each side such as QoS).
Much be similar or repeat because qos policy control and chargeing is controlled to have on the message content, therefore, the two is merged not only can improve communication efficiency, also reduce professional setup delay.At present, 3GPP, 3GPP2 etc. organize and to formulate based on the fusion of IMS policy control and the strategy of the control of chargeing and the control standard of chargeing.
(Service BasedBearer Control is controlled in the strategy among the 3GPP2 and the carrying that is controlled at based on business of chargeing, SBBC) regulation in, referring to SBBC functional mode shown in Figure 1, comprise application function (Application Function, AF), "Policy and Charging Rules Function (Policy and Charging Rule Function, PCRF), and IAD (Access Gateway, AGW).Wherein, AF be used for according to subscriber equipment (User Equipment, service request UE) provides dynamic service information; PCRF is used to generate strategy and charging regulation, comprise functional entity charging rule functions (the Charging Rule Function that formulates charging regulation, CRF) and generate strategy the rule functional entity strategy decision function (Policy Decision Function, PDF); AGW is used for implementation strategy and charging regulation, comprise functional entity charge execution function (the Traffic Plane Function that carries out charging regulation, TPF) and the functional entity policy enforcement function of implementation strategy rule (Policy Enforcement Function, PEF); Interface between AF and PCRF is the Tx interface, and the interface between PCRF and AGW is the Ty interface.
Referring to shown in Figure 2, when UE roams into the visit net, SBBC roaming model comprises AF, ownership "Policy and Charging Rules Function (Home Policy and Charging Rule Function, H-PCRF), the visit "Policy and Charging Rules Function (Visited Policy and Charging Rule Function, V-PCRF), and AGW.Wherein, the interface between AF and H-PCRF is the Tx interface, between H-PCRF and V-PCRF, and V-PCRF and AGW between interface be the Ty interface.
Referring to shown in Figure 3, strategy and charging control procedure when roaming in the prior art mainly comprise following step:
Step 301:UE initiates service request to AGW;
After step 302:AGW receives service request from UE, send the SBBC authorization query, strategy and the charging regulation relevant in the inquiry visit net with this UE to V-PCRF;
Step 303:V-PCRF receive from the AGW authorization query after, H-PCRF in the home network that UE belonged to sends policy lookup, strategy and the charging regulation relevant with this UE in the inquiry home network;
After step 304:H-PCRF receives policy lookup, send the application message inquiry, the relevant information of inquiry UE institute requested service to AF;
Step 305:AF returns application message to H-PCRF after receiving the application message inquiry;
Step 306:H-PCRF formulates the strategy and the charging regulation of home network according to the application message of receiving, some strategies that reach the setting of local operator and the just local home network strategy that is provided with of charging control rule;
Strategy and charging regulation that step 307:H-PCRF will formulate send to V-PCRF, respond as policy lookup;
Step 308:V-PCRF formulates and visits strategy and the charging regulation of netting according to strategy of receiving and charging regulation, some strategies that reach the setting of local operator and the just local visit net strategy that is provided with of charging control rule;
Strategy and charging regulation that step 309:V-PCRF will formulate send to AGW, as the SBBC authorization response;
Step 310:AGW is according to strategy and the charging regulation received, to the UE implementation strategy and the control of chargeing.
Need to prove, in the strategy and charging control procedure of reality, after AGW receives service request from UE, at first need to judge whether that according to self being provided with needs send the SBBC authorization query to V-PCRF, if, then execution in step 302, otherwise, directly according to the service request of self set handling UE; In like manner, after V-PCRF receives authorization query, at first need to judge whether that according to self setting needs send policy lookup to H-PCRF, if then execution in step 303, otherwise, directly according to self set handling authorization query; After H-PCRF receives policy lookup, at first need to judge whether that according to self being provided with needs send the application message inquiry to AF, if then execution in step 304, otherwise, directly according to self set handling policy lookup.Herein, only be elaborated at situation shown in Figure 3.
By described each step of Fig. 3 as seen, in the strategy and charging control procedure when roaming, V-PCRF need could carry out information interaction with AF by the H-PCRF of home network, is easy to cause the time-delay of signaling like this, and then reduces the execution efficient of strategy and charging control procedure.
Summary of the invention
In view of this, strategy when the object of the present invention is to provide a kind of roaming the and billing control method and system reduce the signaling time-delay.
For achieving the above object, V-PCRF obtains the home network strategy from the home network that UE belonged among the present invention, and strategy and billing control method during roaming mainly may further comprise the steps:
After A, visit "Policy and Charging Rules Function V-PCRF receive authorization query from access gateway AG W, by sending the application message inquiry to application function AF from the AF information that is applied;
B, V-PCRF formulate the strategy and the charging regulation of visit net according to the application message that obtains, the home network strategy that obtains and the local visit net strategy that is provided with, and the strategy that will formulate and charging regulation send to AGW;
C, AGW are according to strategy and the charging regulation received, to the user equipment (UE) implementation strategy and the control of chargeing.
Wherein, described V-PCRF obtains the home network strategy from home network and is: V-PCRF obtains the home network strategy from the user-subscribed database of home network; Perhaps be: V-PCRF obtains the home network strategy from the ownership "Policy and Charging Rules Function H-PCRF of home network.
The described formulation of step B is: V-PCRF be applied information, obtain the home network strategy after, according to the application message that obtains, the home network strategy that obtains and the local visit net strategy that is provided with, formulate the strategy and the charging regulation of visit net;
Perhaps be: V-PCRF is applied after the information, the application message that obtains is sent to H-PCRF, the strategy and the charging regulation of application message that H-PCRF sends according to V-PCRF and the local home network policy development home network that is provided with, and the strategy that will formulate and charging regulation return to V-PCRF; V-PCRF formulates the strategy and the charging regulation of visit net according to strategy and charging regulation and the local visit net strategy that is provided with that H-PCRF returns.
When angelica net strategy changed, this method further comprised: home network notice V-PCRF upgrades original home network strategy; Then the described formulation of step B is: V-PCRF formulates the strategy and the charging regulation of visit net according to the home network strategy and the local visit net strategy that is provided with of the application message that obtains, renewal.
Described home network notice V-PCRF upgrades original home network strategy and is: the user-subscribed database of home network sends to V-PCRF with the home network strategy that changes, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps be: the H-PCRF of home network sends to V-PCRF with the home network strategy that changes, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps be: the H-PCRF of home network sends the policy lookup notice to V-PCRF, after V-PCRF receives the policy lookup notice, initiate policy lookup to H-PCRF, after H-PCRF receives the policy lookup of V-PCRF, the home network strategy that changes is sent to V-PCRF, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps be: the user-subscribed database of home network sends the policy lookup notice to V-PCRF, after V-PCRF receives the policy lookup notice, initiate policy lookup to user-subscribed database, after user-subscribed database is received the policy lookup of V-PCRF, the home network strategy that changes is sent to V-PCRF, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving.
When application message changed, this method further comprised: AF sends to V-PCRF with the application message that changes;
Then the described formulation of step B is: V-PCRF formulates the strategy and the charging regulation of visit net according to the application message of the change of receiving, the home network strategy that obtains and the local visit net strategy that is provided with;
The described formulation of step B or be: the application message of the change that V-PCRF will receive sends to H-PCRF, the strategy and the charging regulation of application message that H-PCRF sends according to V-PCRF and the local home network policy development home network that is provided with, and the strategy that will formulate and charging regulation return to V-PCRF, V-PCRF formulates the strategy and the charging regulation of visit net according to strategy and charging regulation and the local visit net strategy that is provided with that H-PCRF returns.
Strategy and charging control system during provided by the invention the roaming mainly comprise: user equipment (UE), access gateway AG W, visit "Policy and Charging Rules Function V-PCRF, application function AF and home network entity, wherein, AF is used for receiving that the application message inquiry back that V-PCRF sends provides application message to V-PCRF; The home network entity is used for providing the home network strategy to V-PCRF; V-PCRF is used for by sending the application message inquiry to AF from the AF information that is applied, according to the application message that obtains, home network strategy and the local visit net strategy that is provided with, formulate the strategy and the charging regulation of visit net, and the strategy that will formulate and charging regulation send to AGW; AGW is used for according to strategy and the charging regulation received, to the UE implementation strategy and the control of chargeing.
Wherein, described home network entity is to have the entity that notice V-PCRF upgrades original home network policing feature.
Described AF has the entity of the application message of the change of sending to the V-PCRF function.
The user-subscribed database that described home network entity is a home network or be the ownership "Policy and Charging Rules Function H-PCRF of home network.
This shows, after V-PCRF obtains the home network strategy from the UE home network among the present invention, can be directly and AF carry out information interaction, and need not effectively reduce the signaling time-delay, thereby improve the execution efficient of strategy and charging control procedure again by the H-PCRF of home network.
Description of drawings
Fig. 1 is a SBBC functional mode schematic diagram of the prior art;
Fig. 2 is the SBBC functional mode schematic diagram in when roaming in the prior art;
Fig. 3 is the strategy and the charging control flow chart in when roaming in the prior art;
Fig. 4 is the SBBC functional mode schematic diagram during roaming among the present invention;
Fig. 5 is the strategy and the charging control flow chart in when roaming in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, the embodiment that develops simultaneously with reference to the accompanying drawings is described in further detail the present invention.
The basic thought of method provided by the present invention is: V-PCRF obtains the home network strategy from the home network that UE belonged to, and after receiving the application message that AF sends, according to the application message of receiving, the home network strategy that obtains and the local visit net strategy that is provided with, formulate the strategy and the charging regulation of visit net, then according to strategy and the charging regulation formulated, to the UE implementation strategy and the control of chargeing.
Wherein, V-PCRF can obtain the home network strategy from the user-subscribed database of home network, and perhaps the H-PCRF from home network obtains the home network strategy.When V-PCRF when H-PCRF obtains the home network strategy, if do not preserve the home network strategy among the H-PCRF, H-PCRF can obtain the home network strategy from user-subscribed database, and the home network strategy that obtains is sent to V-PCRF.
Referring to shown in Figure 4, system provided by the present invention mainly comprises: UE, AGW, V-PCRF, AF and home network entity, and wherein, AF is used for providing application message to V-PCRF; The home network entity is used for providing the home network strategy to V-PCRF; V-PCRF is used for formulating the strategy and the charging regulation of visit net according to application message, home network strategy and visit net strategy, and the strategy that will formulate and charging regulation send to AGW; AGW is used for according to strategy and the charging regulation received, to the UE implementation strategy and the control of chargeing.
Wherein, described home network entity is the user-subscribed database of home network, or is the H-PCRF of home network.
Below in conjunction with system shown in Figure 4, method provided by the invention is described in detail.Referring to shown in Figure 5, strategy and charging control procedure when roaming in the present embodiment mainly comprise following step:
Step 501:UE initiates service request to AGW;
After step 502:AGW receives service request from UE, send the SBBC authorization query, strategy and the charging regulation relevant in the inquiry visit net with this UE to V-PCRF;
After step 503:V-PCRF receives authorization query from AGW, send the application message inquiry, the relevant information of inquiry UE institute requested service to AF;
Step 504:AF returns application message to V-PCRF after receiving the application message inquiry;
Step 505:V-PCRF formulates the strategy and the charging regulation of visit net according to the application message received, the home network strategy that obtains, and the local visit net strategy that is provided with;
Strategy and charging regulation that step 506:V-PCRF will formulate send to AGW, as the SBBC authorization response;
Step 507:AGW is according to strategy and the charging regulation received, to the user equipment (UE) implementation strategy and the control of chargeing.
In addition, in step 505, if V-PCRF can not generate strategy and charging regulation according to the application message of receiving, then V-PCRF can be transmitted to H-PCRF with the application message of receiving from AF, H-PCRF is according to the strategy and the charging regulation of application message and the local home network policy development home network that is provided with, and the strategy that will formulate and charging regulation return to V-PCRF, strategy and the charging regulation that V-PCRF sends according to H-PCRF again, the visit net strategy that reaches local setting are formulated strategy and charging regulation that visit is netted.
When angelica net strategy changed, such as cancelling some business owing to the user or increasing some business or user credit Change of Class when causing strategy and charging regulation change, home network can be upgraded original home network strategy by proactive notification V-PCRF.V-PCRF according to the home network strategy that upgrades, and local visit net strategy and the application message that is provided with, formulates the strategy and the charging regulation of visit net behind the home network policy update.
Wherein, home network is notified V-PCRF to upgrade original home network strategy and can be taked following several mode:
The user-subscribed database of home network sends to V-PCRF with the home network strategy that changes, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps, the H-PCRF of home network sends to V-PCRF with the home network strategy that changes, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps, the H-PCRF of home network sends the policy lookup notice to V-PCRF, notice V-PCRF lastest imformation, after V-PCRF receives the policy lookup notice, initiate policy lookup to H-PCRF, after H-PCRF receives the policy lookup of V-PCRF, the home network strategy that changes is sent to V-PCRF, V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps, the user-subscribed database of home network sends the policy lookup notice to V-PCRF, after V-PCRF receives the policy lookup notice, initiate policy lookup to user-subscribed database, after user-subscribed database is received the policy lookup of V-PCRF, the home network strategy that changes is sent to V-PCRF, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving.
In system shown in Figure 4, notice V-PCRF upgrades the function of original home network strategy to be finished by the home network entity.
When application message changes, change such as session-related parameters, AF sends to V-PCRF with the application message that changes, and V-PCRF formulates the strategy and the charging regulation of visit net according to the application message of the change of receiving and home network strategy that obtains and the local visit net strategy that is provided with.
If V-PCRF can not generate strategy and charging regulation according to the application message of receiving, then V-PCRF can send to H-PCRF with the application message of the change of receiving, the strategy and the charging regulation of application message that H-PCRF sends according to V-PCRF and the local home network policy development home network that is provided with, and the strategy that will formulate and charging regulation return to V-PCRF, strategy and charging regulation and the local visit net strategy that is provided with that V-PCRF returns according to H-PCRF are again formulated strategy and charging regulation that visit is netted.
As seen, among the present invention the strategy in when roaming and the control of chargeing can be not H-PCRF by home network carry out, can effectively reduce the signaling time-delay, thereby improve the execution efficient of strategy and charging control procedure.
The above has carried out further detailed description to purpose of the present invention, technical scheme and beneficial effect; institute is understood that; the above is not in order to restriction the present invention; within the spirit and principles in the present invention all; any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a strategy and the billing control method when roaming is characterized in that, visit "Policy and Charging Rules Function V-PCRF obtains the home network strategy from the home network that user equipment (UE) belonged to, and this method may further comprise the steps:
After A, V-PCRF receive authorization query from access gateway AG W, by sending the application message inquiry to application function AF from the AF information that is applied;
B, V-PCRF formulate the strategy and the charging regulation of visit net according to the application message that obtains, the home network strategy that obtains and the local visit net strategy that is provided with, and the strategy that will formulate and charging regulation send to AGW;
C, AGW are according to strategy and the charging regulation received, to the UE implementation strategy and the control of chargeing.
2. method according to claim 1 is characterized in that, described V-PCRF obtains the home network strategy from home network and is: V-PCRF obtains the home network strategy from the user-subscribed database of home network;
Perhaps be: V-PCRF obtains the home network strategy from the ownership "Policy and Charging Rules Function H-PCRF of home network.
3. method according to claim 1, it is characterized in that, the described formulation of step B is: V-PCRF be applied information, obtain the home network strategy after, according to the application message that obtains, the home network strategy that obtains and the local visit net strategy that is provided with, formulate the strategy and the charging regulation of visit net;
Perhaps be: V-PCRF is applied after the information, the application message that obtains is sent to H-PCRF, the strategy and the charging regulation of application message that H-PCRF sends according to V-PCRF and the local home network policy development home network that is provided with, and the strategy that will formulate and charging regulation return to V-PCRF; V-PCRF formulates the strategy and the charging regulation of visit net according to strategy and charging regulation and the local visit net strategy that is provided with that H-PCRF returns.
4. method according to claim 1 is characterized in that, when angelica net strategy changed, this method further comprised: home network notice V-PCRF upgrades original home network strategy;
Then the described formulation of step B is: V-PCRF formulates the strategy and the charging regulation of visit net according to the home network strategy and the local visit net strategy that is provided with of the application message that obtains, renewal.
5. method according to claim 4 is characterized in that, described home network notice V-PCRF upgrades original home network strategy and is:
The user-subscribed database of home network sends to V-PCRF with the home network strategy that changes, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps be: the H-PCRF of home network sends to V-PCRF with the home network strategy that changes, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps be: the H-PCRF of home network sends the policy lookup notice to V-PCRF, after V-PCRF receives the policy lookup notice, initiate policy lookup to H-PCRF, after H-PCRF receives the policy lookup of V-PCRF, the home network strategy that changes is sent to V-PCRF, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving;
Perhaps be: the user-subscribed database of home network sends the policy lookup notice to V-PCRF, after V-PCRF receives the policy lookup notice, initiate policy lookup to user-subscribed database, after user-subscribed database is received the policy lookup of V-PCRF, the home network strategy that changes is sent to V-PCRF, and V-PCRF upgrades original home network strategy according to the home network strategy of receiving.
6. method according to claim 1 is characterized in that, when application message changed, this method further comprised: AF sends to V-PCRF with the application message that changes;
Then the described formulation of step B is: V-PCRF formulates the strategy and the charging regulation of visit net according to the application message of the change of receiving, the home network strategy that obtains and the local visit net strategy that is provided with;
The described formulation of step B or be: the application message of the change that V-PCRF will receive sends to H-PCRF, the strategy and the charging regulation of application message that H-PCRF sends according to V-PCRF and the local home network policy development home network that is provided with, and the strategy that will formulate and charging regulation return to V-PCRF, V-PCRF formulates the strategy and the charging regulation of visit net according to strategy and charging regulation and the local visit net strategy that is provided with that H-PCRF returns.
7. a strategy and charging control system when roaming is characterized in that this system comprises: user equipment (UE), access gateway AG W, visit "Policy and Charging Rules Function V-PCRF, application function AF and home network entity,
Wherein, AF is used for receiving that the application message inquiry back that V-PCRF sends provides application message to V-PCRF;
The home network entity is used for providing the home network strategy to V-PCRF;
V-PCRF is used for by sending the application message inquiry to AF from the AF information that is applied, according to the application message that obtains, home network strategy and the local visit net strategy that is provided with, formulate the strategy and the charging regulation of visit net, and the strategy that will formulate and charging regulation send to AGW;
AGW is used for according to strategy and the charging regulation received, to the UE implementation strategy and the control of chargeing.
8. system according to claim 7 is characterized in that, described home network entity is to have the entity that notice V-PCRF upgrades original home network policing feature.
9. system according to claim 7 is characterized in that, described AF has the entity of the application message of the change of sending to the V-PCRF function.
10. according to claim 7 or 8 described systems, it is characterized in that the user-subscribed database that described home network entity is a home network or be the ownership "Policy and Charging Rules Function H-PCRF of home network.
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| CN101060413A (en) | 2007-10-24 |
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