METHOD FOR SERVICE CHAIN POLICY FORMULATION AND DEVICE

摘要

Embodiments of the present invention provide a method, including: receiving, by a PCRF by using an SCEF, a first message sent by an AS, where the first message is used to request to formulate a service chain policy for a service flow of UE, and the first message includes a service chain requirement of the service flow; and formulating, by the PCRF, the service chain policy for the service flow according to the service chain requirement that is of the service flow and that is included in the first message, where the service chain policy includes a service chain function provided to the service flow. When a user needs to implement a service, the PCRF formulates, according to a message that is sent by the AS and that includes a requirement of a service flow corresponding to the service, a service chain policy that is suitable for the service flow.