Building and operating multimode devices in heterogeneous networks can become very complex if each access technology has to be addressed directly and separately by the networking entities. To solve this issue, the IEEE, through its 802.21 work group, has developed a standard that allows a mobile terminal to seamlessly roam across different types of 802 network access technologies. Named Media Independent Handover Services, this standard enables in addition the mobility to and from of cellular systems based on 3GPP
and 3GPP2 specifications. The Evolved Packet System (EPS) is the next step of the 3GPP network system following the Universal Mobile Telecommunications System (UMTS) which brings strong enhancement and improved performance to mobile communications. This document provides an update on the media dependent mapping of the IEEE 802.21 to LTE.
