Method, apparatus and system for marking service data packet

摘要

A method, an apparatus and a system for marking a service data packet are provided. A traffic detection function TDF is requested to detect a data flow description or data flow starting or ending information corresponding to a service application type. The detected data flow description or a data flow starting or ending information report, transmitted by the TDF, is received. A data packet marking rule is generated according to the data flow description or the data flow starting or ending information report. A session modification message carrying the data packet marking rule is transmitted to a bearer binding function entity BBF for the BBF to map a data flow identified by the session modification message to a bearer according to the session modification message, and mark a GTP-U header according to the data packet marking rule.

主权项

1. An apparatus for marking a service data packet, wherein the apparatus is a policy and charging rule function (PCRF), and the apparatus comprises:
a requesting unit, configured to request a traffic detection function entity (TDF) to detect a data flow description corresponding to a service application type or detect data flow starting or ending information corresponding to the service application type; a receiving unit, configured to receive the data flow description corresponding to the service application type or a data flow starting or ending information report corresponding to the service application type, wherein the data flow description is requested by the requesting unit and detected by the TDF; a rule generating unit, configured to generate a data packet marking rule according to the data flow description received by the receiving unit; and a transmitting unit, configured to transmit, to a bearer binding function entity (BBF), a session modification message carrying the data packet marking rule generated by the generating unit, for the BBF to map a data flow identified by the session modification message to a bearer according to the session modification message, and mark a general packet radio service (GPRS) tunneling protocol-user plane (GTP-U) header according to the data packet marking rule.