METHOD AND SYSTEM FOR CHARGING IN MULTI-PDP ENVIROMENT

摘要

The present invention is related to a charging method and system in a multi-PDP context environment. The method, which is carried out in a GGSN connected to an SGSN and an AAA server via a network, includes (a) receiving a PDP context creating request message from the SGSN if there is a request for activating an additional PDP context from a subscriber's terminal created with at least one PDP context; (b) linking with the AAA server to authenticate a subscriber and generating a charging ID; (c) creating an account session ID of the additional PDP context if the authentication is successful, and creating a first account multi-session ID as the same value as the account session ID of a fist PDP context; and (d) transferring an account start request including the account session ID and the first multi-session ID to the AAA server, whereas the AAA server recognizes the receiving of the account start request of the additional PDP context as a charging in the same call accessing. With the present invention, charging data of a plurality of PDP contexts can be correlated to each other in the multi-PDP context environment.