DIFFERENTIATED ACCOUNTING IN A PACKET DATA NETWORK

摘要

A method, system and Packet Data Access Node (PDAN), such as a Packet Data Service Node (PDSN) of a CDMA2000 network, for performing accounting based not only on the IP address of a terminal associated with the PDAN (e.g. a Mobile Station), but also on information related to a Corresponding Node (CN) with which the terminal communicates over a packet data session, such as the CN IP address, and possibly the CN application ID/port number, and the Quality of Service (QoS) for that session. The session between the terminal and the CN uses Session Initiation Protocol (SIP), and a Proxy Call Switch Control Function (P-CSCF) provides the PDAN with the CN's information. The PDAN counts the traffic associated with the CN and reports it, along with the CN's information to an Authorization, Authentication, and Accounting server (AAA). Accounting can be performed based on the CN's related information.