Policy Control Method and System

1. A policy control method, comprising: a Broadband Forum (BBF) access network entity receiving and saving outer Internet protocol (IP) packet header information sent by a 3rd Generation Partnership Project (3GPP) network entity; the BBF access network entity filtering service data flows according to the saved outer IP packet header information; when the BBF access network entity gets a data packet matching the outer IP packet header information, the BBF access network entity scheduling the data packet according to a Differentiated Services Code Point (DSCP) of the data packet; when the BBF access network entity gets a data packet mismatching the outer IP packet header information, the BBF access network entity scheduling the data packet according to a local policy.

2. The policy control method according to claim 1 , wherein, the step of a BBF access network entity receiving outer IP packet header information sent by a 3GPP network entity comprises: an Evolved Packet Data Gateway (ePDG) of a 3GPP network sending the outer IP packet header information to a Policy and Charging Rules Function (PCRF) through a Packet Data Network Gateway (P-GW), the PCRF sending the outer IP packet header information to a Broadband Policy Control Framework (BPCF) of a BBF access network, and the BPCF sending the outer IP packet header information to the BBF access network entity; or, the ePDG directly sending the outer IP packet header information to the PCRF, the PCRF sending the outer IP packet header information to the BPCF, and the BPCF sending the outer IP packet header information to the BBF access network entity; or, the P-GW sending the outer IP packet header information to the PCRF, the PCRF sending the outer IP packet header information to the BPCF, and the BPCF sending the outer IP packet header information to the BBF access network entity; or the ePDG sending the outer IP packet header information to the PCRF through the P-GW, the PCRF sending the outer IP packet header information to the BBF access network entity; or, the ePDG directly sending the outer IP packet header information to the PCRF, the PCRF sending the outer IP packet header information to the BBF access network entity; or, the P-GW sending the outer IP packet header information to the PCRF, the PCRF sending the outer IP packet header information to the BBF access network entity.

3. The policy control method according to claim 1 , wherein, the step of a BBF access network entity receiving outer IP packet header information sent by a 3GPP network entity comprises: a Security Gateway (SeGW) of the 3GPP network sending the outer IP packet header information to an H(e)NB Policy Function (H(e)NB PF) of the BBF access network, the H(e)NB PF sending the outer IP packet header information to the BPCF, and the BPCF sending the outer IP packet header information to the BBF access network entity; or, the SeGW sending the outer IP packet header information to the PCRF, the PCRF sending the outer IP packet header information to the BPCF, and the BPCF sending the outer IP packet header information to the BBF access network entity; or the SeGW of the 3GPP network sending the outer IP packet header information to the H(e)NB PF, the H(e)NB PF sending the outer IP packet header information to the BBF access network entity; or, the SeGW sending the outer IP packet header information to the PCRF, the PCRF sending the outer IP packet header information to the BBF access network entity.

4. The policy control method according to claim 3 , wherein, the step of the H(e)NB PF sending the outer IP packet header information to the BPCF comprises: when initiating a policy interconnection session establishment to the BPCF, the H(e)NB PF sending the outer IP packet header information to the BPCF; the step of the PCRF sending the outer IP packet header information to the BPCF comprises: when initiating the policy interconnection session establishment to the BPCF, the PCRF sending the outer IP packet header information to the BPCF.

5. The policy control method according to claim 1 , wherein, the outer IP packet header information at least comprises a local IP address of a User Equipment (UE), if an NA(P)T is detected between the UE and the ePDG or between the UE and the P-GW, the outer IP packet header information further comprises a User Datagram Protocol (UDP) source port number, wherein, the UDP source port number is an IPSec UDP source port number or a UDP source port number of a DSMIP binding update signaling.

6. The policy control method according to claim 5 , wherein, the outer IP packet header information is a packet filter containing corresponding information.

7. The policy control method according to claim 1 , wherein, the outer IP packet header information at least comprises a local IP address of an H(e)NB, if an NA(P)T is detected between the H(e)NB and the SeGW, the outer IP packet header information further comprises a UDP source port number wherein, the UDP source port number is an IPSec UDP source port number.

8. The policy control method according to claim 7 , wherein, the outer IP packet header information is a packet filter containing corresponding information.

9. A policy control system, comprising: a 3GPP network entity and a Broadband Forum (BBF) access network entity, wherein: the 3GPP network entity is configured to: send outer Internet protocol (IP) packet header information to the BBF access network entity; the BBF access network entity is configured to: receive and save the outer IP packet header information, filter service data flows according to saved outer IP packet header information, when the BBF access network entity gets a data packet matching the outer IP packet header information, schedule the data packet according to a Differentiated Services Code Point (DSCP) of the data packet, when the BBF access network entity gets a data packet mismatching the outer IP packet header information, schedule the data packet according to a local policy.

10. The policy control system according to claim 9 , wherein, the system further comprises: a Broadband Policy Control Framework (BPCF) of a BBF access network, wherein: the 3GPP network entity comprises a Packet Data Network Gateway (P-GW), an Evolved Packet Data Gateway (ePDG) and a Policy and Charging Rules Function (PCRF), wherein: the ePDG is configured to: send the outer IP packet header information to the PCRF through the P-GW; or directly send the outer IP packet header information to the PCRF; the P-GW is configured to: assist the ePDG to send the outer IP packet header information to the PCRF; or send the outer IP packet header information to the PCRF by itself; the PCRF is configured to: send the outer IP packet header information to the BPCF or the BBF access network entity; the BPCF is configured to: send the outer IP packet header information to the BBF access network entity.

11. The policy control system according to claim 10 , wherein, the PCRF is configured to send the outer IP packet header information to the BPCF by the following way: when performing quality of service authorization, sending the outer IP packet header information to the BPCF; or, when initiating a policy interconnection session establishment to the BPCF, sending the outer IP packet header information to the BPCF.

12. The policy control system according to claim 9 , further comprising a BPCF, wherein: the 3GPP network entity comprises a Security Gateway (SeGW) and an H(e)NB Policy Function (H(e)NB PF), or comprises a SeGW and a PCRF, wherein: the SeGW is configured to: send the outer IP packet header information to the H(e)NB PF; the H(e)NB PF is configured to: send the outer IP packet header information to the BPCF; the BPCF is configured to: send the outer IP packet header information to the BBF access network entity; or, the 3GPP network entity comprises the SeGW and the PCRF, wherein: the SeGW is configured to: send the outer IP packet header information to the PCRF; the PCRF is configured to: send the outer IP packet header information to the BPCF or the BBF access network entity; the BPCF is configured to: send the outer IP packet header information to the BBF access network entity.

13. The policy control system according to claim 12 , wherein, the H(e)NB PF or the PCRF is configured to send the outer IP packet header information to the BPCF by the following way: when initiating a policy interconnection session establishment to the BPCF, sending the outer IP packet header information to the BPCF.

14. The policy control system according to claim 9 , wherein, the outer IP packet header information at least comprises a local IP address of a User Equipment (UE) or a local IP address of an H(e)NB, or, in a case that the outer IP packet header information comprises a local IP address of a User Equipment (UE), and if an NA(P)T is detected between the UE and the ePDG or between the UE and the P-GW, the outer IP packet header information further comprises a User Datagram Protocol (UDP) source port number wherein, the UDP source port number is an IPSec UDP source port number or a UDP source port number of a DSMIP binding update signaling, in a case that the outer IP packet header information at least comprises a local IP address of an H(e)NB, and if an NA(P)T is detected between the H(e)NB and the SeGW, the outer IP packet header information further comprises a UDP source port number wherein, the UDP source port number is an IPSec UDP source port number.

15. The policy control system according to claim 14 , wherein, the outer IP packet header information is a packet filter containing corresponding information.

16. A Broadband Forum (BBF) access network system, comprising a BBF access network entity, wherein: the BBF access network entity is configured to: receive and save outer Internet protocol (IP) packet header information sent by a 3GPP network, filter service data flows according to the saved outer IP packet header information, when the BBF access network entity gets a data packet matching the outer IP packet header information, schedule the data packet according to a Differentiated Services Code Point (DSCP) of the data packet, when the BBF access network entity gets a data packet mismatching the outer IP packet header information, schedule the data packet according to a local policy.

17. The BBF access network system according to claim 16 , further comprising: a Broadband Policy Control Framework (BPCF), wherein: the BPCF is configured to: after an Evolved Packet Data Gateway (ePDG) of the 3GPP network sends the outer IP packet header information to a Policy and Charging Rules Function (PCRF) through a Packet Data Network Gateway (P-GW), receive the outer IP packet header information sent by the PCRF; or after the ePDG directly sends the outer IP packet header information to the PCRF, receive the outer IP packet header information sent by the PCRF; or after the P-GW sends the outer IP packet header information to the PCRF, receive the outer IP packet header information sent by the PCRF, and send the outer IP packet header information to the BBF access network entity; or, receive the outer IP packet header information sent by a Security Gateway (SeGW) of the 3GPP network through an H(e)NB Policy Function (H(e)NB PF) of a BBF access network; or receive the outer IP packet header information sent by the SeGW through the PCRF, and send the outer IP packet header information to the BBF access network entity.