Policy and charging enforcement function apparatus, online charging apparatus, and online charging method

1. A policy and charging enforcement function (PCEF) apparatus, comprising:

a communications interface configured to receive a policy and charging control (PCC) rule from a Policy and Charging Rules Function (PCRF); and

a processor coupled to the communications interface and configured to:

determine, based on the PCC rule, that a service data flow of a user equipment comprises a sponsor service data flow sponsored by a sponsor; and

determine, based on a rating group of the sponsor service data flow comprised in the PCC rule, whether the PCEF apparatus has a credit quota available to the sponsor service data flow when the sponsor service data flow uses online charging,

the communications interface being further configured to:

send a credit control request comprising the rating group to an online charging apparatus when the PCEF apparatus does not have the credit quota available to the sponsor service data flow; and

receive the credit quota available to the sponsor service data flow from the online charging apparatus, and

the processor being further configured to record use information of use of the credit quota by the sponsor service data flow.

2. The PCEF apparatus of claim 1 , wherein the processor is further configured to determine, based on the rating group, that the service data flow of the user equipment comprises the sponsor service data flow sponsored by the sponsor.

3. The PCEF apparatus of claim 2 , wherein the use information recorded by the processor corresponds to the rating group, and the communications interface being further configured to send a reporting message comprising the rating group and the use information to the online charging apparatus when a reporting condition is satisfied.

4. The PCEF apparatus of claim 3 , wherein the communications interface is further configured to:

receive the reporting condition from the online charging apparatus, the reporting condition comprising that a quality of service (QoS) of the service data flow is changed; and

send the reporting message to the online charging apparatus when the QoS of the service data flow is changed.

5. The PCEF apparatus of claim 1 , wherein the PCC rule further comprises a sponsor identity, and the processor being further configured to determine, based on the sponsor identity, that the service data flow of the user equipment comprises the sponsor service data flow sponsored by the sponsor.

6. The PCEF apparatus of claim 5 , wherein the PCC rule further comprises the sponsor identity and an application service provider identity, the use information recorded by the processor corresponding to the sponsor identity and the application service provider identity, and the communications interface being further configured to send a reporting message comprising the sponsor identity, the application service provider identity, and the use information to the online charging apparatus when a reporting condition is satisfied.

7. The PCEF apparatus of claim 1 , wherein the credit quota available to the sponsor service data flow comprises duration, and the processor being further configured to record a start time, an end time, and effective use duration of using the credit quota by the sponsor service data flow in a current reporting period.

8. A charging method applied to a policy and charging enforcement function (PCEF) apparatus, comprising:

receiving a policy and charging control (PCC) rule from a Policy and Charging Rules Function (PCRF);

determining, based on the PCC rule, that a service data flow of a user equipment comprises a sponsor service data flow sponsored by a sponsor,

determining, based on a rating group of the sponsor service data flow comprised in the PCC rule, whether the PCEF apparatus has a credit quota available to the sponsor service data flow when the sponsor service data flow uses online charging;

sending a credit control request comprising the rating group to an online charging apparatus when the PCEF apparatus does not have the credit quota available to the sponsor service data flow;

receiving the credit quota available to the sponsor service data flow from the online charging apparatus; and

recording use information of use of the credit quota by the sponsor service data flow.

9. The charging method of claim 8 , further comprising determining, based on the rating group, that the service data flow of the user equipment comprises the sponsor service data flow sponsored by the sponsor.

10. The charging method of claim 9 , wherein the use information corresponds to the rating group, and the charging method further comprising sending a reporting message comprising the rating group and the use information to the online charging apparatus when a reporting condition is satisfied.

11. The charging method of claim 10 , further comprising:

receiving the reporting condition from the online charging apparatus, the reporting condition comprising that a quality of service (QoS) of the service data flow is changed; and

sending the reporting message to the online charging apparatus when the QoS of the service data flow is changed.

12. The charging method of claim 8 , wherein the PCC rule further comprises a sponsor identity, and the charging method further comprising determining, based on the sponsor identity, that the service data flow of the user equipment comprises the sponsor service data flow sponsored by the sponsor.

13. The charging method of claim 12 , wherein the PCC rule further comprises the sponsor identity and an application service provider identity, the use information corresponding to the sponsor identity and the application service provider identity, and the charging method further comprising sending a reporting message comprising the sponsor identity, the application service provider identity, and the use information to the online charging apparatus when a reporting condition is satisfied.

14. The charging method of claim 8 , wherein the credit quota available to the sponsor service data flow comprises duration, and the charging method further comprising recording a start time, an end time, and effective use duration of using the credit quota by the sponsor service data flow in a current reporting period.

15. A charging method applied to an online charging apparatus, comprising:

receiving a credit control request from a policy and charging enforcement function (PCEF) apparatus, the credit control request comprising a rating group;

determining, based on the rating group comprised in the credit control request, that a service data flow of a user equipment comprises a sponsor service data flow sponsored by a sponsor when the rating group specifies the sponsor;

allocating a credit quota to the sponsor service data flow according to the rating group; and

sending the credit quota to the PCEF apparatus.

16. The charging method of claim 15 , wherein allocating the credit quota to the sponsor service data flow comprises allocating the credit quota to the sponsor service data flow according to a default quota type stored in the online charging apparatus.

17. The charging method of claim 15 , wherein the credit control request comprises a quota type, and allocating the credit quota to the sponsor service data flow comprises allocating, according to the quota type comprised in the credit control request.

18. The charging method of claim 15 , wherein the method further comprises:

determining a reporting condition corresponding to the sponsor; and

sending the reporting condition to the PCEF apparatus.