Table of Contents

 1     Scope            
 2     References   
 3     Definitions   
        3.1     Terms defined elsewhere
        3.2     Terms defined in this Recommendation     
 4     Abbreviations and acronyms  
 5     Conventions
 6     Requirements for WiMAX and UMTS interworking           
        6.1     Harmonization with IP-based core networks             
        6.2     Service continuity            
        6.3     QoS support      
        6.4     Service compatibility      
        6.5     Service context transfer  
        6.6     Interworking with the established AAA and security schemes
        6.7     Policy-based and dynamic network selection            
 7     Functional architecture for interworking between WiMAX and UMTS          
        7.1     Access transport function              
        7.2     Core transport function  
        7.3     Interworking for handover support              
        7.4     Seamless handover support           
 8     Signal flow for interworking between WiMAX and UMTS
        8.1     Access network detection and selection      
        8.2     Connection establishment             
        8.3     Vertical handover            
 9     Security considerations             
Appendix I – Use cases of hybrid MIP-based MM between WiMAX and UMTS    
        I.1                   Introduction to hybrid mobile IP     
        I.2                   Initial connection establishment procedure in the UMTS network           
        I.3                   Handover procedure from UMTS to WiMAX (make-before-break scenario)       
        I.4                   Initial connection establishment procedure in the WiMAX network        
        I.5                   Handover procedure from WiMAX to UMTS              
Appendix II – Use cases of PMIPv6 with bicasting for vertical handovers