v2 Internet Key Exchange version 2 International Mobile Subscriber Identity Internet Protocol IPSec IP Security ISAKMP Internet Security Association and Key Management Protocol Industrial, Scientific and Medical Inter-System Mobility Policy Inter-System Routing Policy Initialization Vector Wi-Fi Integration to the 4G Mobile Network Key Confirmation Key Key Encryption Key Licensed Assisted Access Local Area Network Load-Based Equipment Listen Before Talk Logical Channel Identifier Low-Density Parity Check Logical Link Control Local Mobility Anchor LMA Address Local Mobility Domain Long-Term Evolution Long Training Field LTE-Wi-Fi Aggregation LWAAP LWA Adaptation Protocol LTE/WLAN radio level integration with IPsec tunnel LWIPEP LWIP Encapsulation Protocol Multimedia-Authentication-Answer Medium Access Control Message Authentication Code Mobile Access Gateway MAPCON Multiple-Access PDN Connectivity Multimedia-Authentication-Request Mobile Country Code Message Integrity Code Multiple Input Multiple Output Mobile IP Mobility Management Entity List of Abbreviations Mobile Node Mobile Network Code Management Object MPTCP Multi-Path Transmission Control Protocol MAC Service Data Unit MSISDN Mobile Subscriber ISDN Number Master Session Key Maximum Segment Size Multi User Network Access Identifier Non-Access Stratum Network Address Translation Neighbor Discovery Non-Seamless WLAN Offload Online Charging System Offline Charging System Orthogonal Frequency-Division Multiplexing Offload Preference Indication Open System Authentication Peer Authorization Database Proxy Binding Acknowledgement Packet Binary Convolutional Code Proxy Binding Update Policy and Charging Control Phased Coexistence Operation Policy Charging and Rules Function Packet Data Convergence Protocol xviii Wi-Fi Integration to the 4G Mobile Network Packet Data Network PDN Gateway Physical Layer Convergence Protocol Physical Medium Dependent PMIPv6 Proxy Mobile IP version 6 Pairwise Master Key Packet Number Push-Profile-Answer PLCP Protocol Data Unit Push-Pro