Introduction
This chapter describes the IMS AAA Server license requirements and presents an overview of the 3GPP WLAN reference model.
The IMS AAA Server is a multi-protocol server that performs the authentication, authorization, and accounting (AAA) functions of the 3GPP AAA Server/Proxy network element referenced in 3GPP TS 23.234: "3GPP System to Wireless Local Area Network (WLAN) Interworking; System description."