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Reference.org
Access network discovery and selection function
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<p>Access network discovery and selection function (ANDSF) is an entity within an evolved packet core (EPC) of the <a href="/facts/System_architecture_evolution/8sAINAK6">system architecture evolution</a> (SAE) for <a href="/facts/3GPP/TBrQYKFF">3GPP</a> compliant mobile networks. The purpose of the ANDSF is to assist <a href="/facts/User_equipment/bMTNPWXV">user equipment</a> (UE) to discover non-3GPP access networks – such as <a href="/facts/Wi-Fi/u94quCsx">Wi-Fi</a> or <a href="/facts/WIMAX/tz9zpKHU">WIMAX</a> – that can be used for data communications in addition to 3GPP access networks (such as <a href="/facts/High_Speed_Packet_Access/4S6Mz83J">HSPA</a> or <a href="/facts/3GPP_long-term_evolution/72QhwXHT">LTE</a>) and to provide the UE with rules policing the connection to these networks. </p>