A METHOD FOR MONITORING THE MINUS FLOW AND A CHARGING SYSTEM

摘要

A method for monitoring the minus flow includes that the function entity for monitoring the minus flow in WiMAX system generates the minus flow information including the total flow; the said minus flow information is wrote into the usage data record of the user, and is reported to the AAA server by the charging information; the AAA server acquires the said minus flow information from the charging information. Also, there are a minus flow detecting device and a WiMAX charging system.