Policy determining method, system, and apparatus

1. A policy determining method, comprising:

obtaining, by a policy control function (PCF) network element, analytics information from a data analytics network element, wherein the analytics information comprises service experience analytics information corresponding to a radio access type (RAT) or an access frequency; and

determining, by the PCF network element, an access information selection policy of a terminal device based on the analytics information, wherein the access information selection policy comprises a target RAT or a target access frequency corresponding to the terminal device.

2. The method according to claim 1 , wherein the service experience analytics information comprises at least one of an identifier of the terminal device, a service type, the RAT or the access frequency, service experience for the service type, time information, or area information of the terminal device.

3. The method according to claim 1 , wherein the determining the access information selection policy of the terminal device based on the analytics information comprises:

determining, by the PCF network element based on the analytics information, the target RAT or the target access frequency corresponding to the terminal device, wherein service experience for the service type of the terminal device in the target RAT or the target access frequency meets a preset condition.

4. The method according to claim 1 , wherein the service experience analytics information comprises corresponding service experience for at least one service type in the RAT or the access frequency,

wherein the determining the access information selection policy of the terminal device based on the analytics information comprises:

determining, by the PCF network element, a service type that has been initiated or is to be initiated by the terminal device; and

for the service type that has been initiated or is to be initiated by the terminal device, determining, by the PCF network element, the target RAT or the target access frequency in the service experience analytics information corresponding to the RAT or the access frequency, wherein corresponding service experience for the service type that is in the target RAT or the target access frequency and that has been initiated or is to be initiated by the terminal device meets the preset condition.

5. The method according to claim 4 , wherein the determining the service type that is to be initiated by the terminal device comprises:

obtaining, by the PCF network element, service behavior analytics information of the terminal device from the data analytics network element; and

predicting, by the PCF network element based on the service behavior analytics information of the terminal device, the service type that is to be initiated by the terminal device.

6. The method according to claim 5 , wherein the service behavior analytics information of the terminal device comprises service behavior statistics information of the terminal device or service behavior prediction information of the terminal device.

7. The method according to claim 1 , wherein the obtaining the analytics information from the data analytics network element comprises:

sending, by the PCF network element, a first request message to the data analytics network element, wherein the first request message comprises the service type, and the first request message requests the analytics information corresponding to the service type; and

receiving, by the PCF network element, a first response message from the data analytics network element, wherein the first response message comprises the analytics information corresponding to the service type.

8. The method according to claim 1 , wherein the obtaining the analytics information from the data analytics network element comprises:

sending, by the PCF network element, a first request message to the data analytics network element, wherein the first request message comprises the identifier of the terminal device, and the first request message requests the analytics information corresponding to the terminal device; and

receiving, by the PCF network element, a first response message from the data analytics network element, wherein the first response message comprises the analytics information corresponding to the terminal device.

9. The method according to claim 1 , further comprising: obtaining, by the PCF network element, an applicable condition of the analytics information, wherein the applicable condition comprises at least one of the service type, a user type, a user identifier, the time information, or the area information.

10. The method according to claim 1 , further comprising:

sending, by the PCF network element, the access information selection policy of the terminal device to an access network element.

11. An apparatus, comprising:

at least one processor; and

a memory coupled to the processor and storing computer instructions, which when executed by the at least one processor, cause the apparatus to:

obtain first analytics information from a data analytics network element, wherein the first analytics information comprises service experience analytics information corresponding to a radio access type (RAT) or an access frequency; and

determine an access information selection policy of a terminal device based on the first analytics information, wherein the access information selection policy comprises a target RAT or a target access frequency corresponding to the terminal device.

12. The apparatus according to claim 11 , wherein the service experience analytics information comprises at least one of an identifier of the terminal device, a service type, the RAT or the access frequency, service experience for the service type, time information, or area information of the terminal device.

13. The apparatus according to claim 11 , wherein the computer instructions, which when executed by the at least one processor, further cause the apparatus to:

determine, based on the analytics information, the target RAT or the target access frequency corresponding to the terminal device, wherein service experience for the service type of the terminal device in the target RAT or the target access frequency meets a preset condition.

14. The apparatus according to claim 11 , wherein the service experience analytics information comprises corresponding service experience for at least one service type in the RAT or the access frequency,

wherein the computer instructions, which when executed by the at least one processor, further cause the apparatus to:

determine a service type that has been initiated or is to be initiated by the terminal device; and

for the service type that has been initiated or is to be initiated by the terminal device, determine the target RAT or the target access frequency in the service experience analytics information corresponding to the RAT or the access frequency, wherein corresponding service experience for the service type that is in the target RAT or the target access frequency and that has been initiated or is to be initiated by the terminal device meets the preset condition.

15. The apparatus according to claim 14 , wherein the computer instructions, which when executed by the at least one processor, further cause the apparatus to:

obtain service behavior analytics information of the terminal device from the data analytics network element; and

predict, based on the service behavior analytics information of the terminal device, the service type that is to be initiated by the terminal device.

16. The apparatus according to claim 15 , wherein the service behavior analytics information of the terminal device comprises service behavior statistics information of the terminal device or service behavior prediction information of the terminal device.

17. The apparatus according to claim 11 , wherein the computer instructions, which when executed by the at least one processor, further cause the apparatus to:

send a first request message to the data analytics network element, wherein the first request message comprises the service type, and the first request message requests the first analytics information corresponding to the service type; and

receive a first response message from the data analytics network element, wherein the first response message comprises the analytics information corresponding to the service type.

18. The apparatus according to claim 11 , wherein the computer instructions, which when executed by the at least one processor, further cause the apparatus to:

send a first request message to the data analytics network element, wherein the first request message comprises the identifier of the terminal device, and the first request message requests the analytics information corresponding to the terminal device; and

receive a first response message from the data analytics network element, wherein the first response message comprises the analytics information corresponding to the terminal device.

19. The apparatus according to claim 11 , wherein the computer instructions, which when executed by the at least one processor, further cause the apparatus to:

obtain an applicable condition of the analytics information, wherein the applicable condition comprises at least one of the service type, a user type, a user identifier, the time information, or the area information.

20. The apparatus according to claim 11 , wherein the apparatus is a policy control function (PCF) network element, wherein the computer instructions, which when executed by the at least one processor, further cause the apparatus to:

send the access information selection policy of the terminal device to an access network element.