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Mobile WiMAX – E2E Architecture Perspective All-IP Access Service Network (ASN) All-IP Access Service Network (ASN) BS BS BS BS IP Connectivity Service Network (CSN) Applications Service Network INTERNET Mobility Management Requirements: Need two-level MM hierarchy ‘Make-Before-Break’ HO within and across ASN – could eliminate need for complex over-the-air MM primitives Client to remote CSN HO could be delayed and seamless over ASN anchored paths Must support notion of separate Network Access (ASN) Provider – NAP and Network Service (CSN) Provider - NSP i.e. different security domains Seamless integration between localized and E2E MM protocols |