Apparatus and method for establishing session in a packet switched network

摘要

A method and apparatus for establishing a session by a Policy and Charging Enforcement Function (PCEF) module in a Packet Switched (PS) network, in which the PCEF module transmits bearer information indicating whether the session supports a single bearer or multiple bearers, to a Policy and Charging Rules Function (PCRF) module, receives a Policy & Charging Control (PCC) rule generated based on the bearer information, from the PCRF module, and establishes a session for a packet service by applying the received PCC rule.

主权项

1. A method for establishing a session by a policy and charging enforcement function (PCEF) module in a packet switched (PS) network, the method comprising:
receiving a request for establishing the session from a user equipment (UE); determining whether the session supports a single bearer or not; generating a credit control request (CCR) command with bearer information for identifying a type of a bearer when the session supports the single bearer, or generating the CCR command without the bearer information when the session does not support the single bearer; transmitting, to a policy and charging rules function (PCRF) module, the generated bearer information CCR command and storing the bearer information; determining whether a credit control answer (CCA) command including a policy and charging control (PCC) rule is received or not, from the PCRF module; and establishing the session for a packet service by applying the received PCC rule based on the determining, wherein the bearer information is transmitted as a single-bearer-support attribute value pair (AVP), and the single-bearer-support AVP has one of values ‘SINGLE_BEARER_SUPPORTED(1)’ and ‘SINGLE_BEARER_NOT_SUPPORTED(0)’.