Message Relay in ASN .................................................................................................................................... 167

ASN Gateway Architecture and Deployment Profiles .................................................................................... 167

WiMAX Network Deployment Configurations ................................................................................................... 169

Standalone ASN Gateway/FA and HA Deployments ..................................................................................... 169

Co-Located Deployments ................................................................................................................................ 169

ASN Call Procedure Flows .................................................................................................................................. 171

Functional Components for Handover ............................................................................................................ 171

Anchor ASN Gateway ................................................................................................................................ 171

Anchor Session ........................................................................................................................................... 171

Non-Anchor ASN Gateway ........................................................................................................................ 172

Non-Anchor Session ................................................................................................................................... 172

Initial Network Entry and Data Path Establishment without Authentication .................................................. 173

Initial Network Entry and Data Path Establishment with Authentication (Single EAP) ................................. 175

Unexpected Network Re-entry ........................................................................................................................ 177

MS Triggered Network Exit ............................................................................................................................ 178

Network Triggered Network Exit .................................................................................................................... 179

Intra-ASN Gateway Handover ........................................................................................................................ 181

Intra-anchor ASN Gateway Uncontrolled Handover .................................................................................. 181

Intra-anchor ASN Gateway Controlled Handover ...................................................................................... 183

Inter-ASN Gateway Handover ........................................................................................................................ 189

ASN Gateway Function for Handovers ...................................................................................................... 190

Controlled Anchor ASN Gateway to Non-Anchor ASN Gateway Handover ............................................ 191

Uncontrolled Anchor ASN Gateway to Non-Anchor ASN Gateway Handover ........................................ 196

RADIUS-based Prepaid Accounting for WiMax ............................................................................................ 198

Obtaining More Quota after the Quota is Reached ..................................................................................... 198

Applying HTTP Redirection Rule when Quota is Reached ....................................................................... 200

Applying HTTP Redirection Rule CoA is Received .................................................................................. 202

Terminating the Call when Quota is Reached ............................................................................................ 204

CSN Procedure Flows .......................................................................................................................................... 206

PMIP4 Connection Setup and Call Flow with DHCP Proxy ........................................................................... 206

PMIP4 Session Release ................................................................................................................................... 208

WiMAX Deployment with Legacy Core Networks ............................................................................................. 210

ASN Gateway Interoperability with 3GPP Overlay ........................................................................................ 210

ASN Gateway Interoperability with 3GPP2 Overlay ...................................................................................... 210

Session Continuity Support for 3GPP2 and WiMAX Handovers ................................................................... 211

NSP-ID and NAP-ID Functionality ..................................................................................................................... 212

Manual Mode .................................................................................................................................................. 212

Automatic Mode .............................................................................................................................................. 212

ASN GW and NAP-ID/NSP-ID Process ......................................................................................................... 213

Data Tunnel Endpoint Support ............................................................................................................................. 214

ASNGW with a Different Tunnel Endpoint .................................................................................................... 214

No Handoff (INE) ........................................................................................................................................... 214

Inter-ASNGW Handoff ................................................................................................................................... 215

Intra-ASNGW Handoff .............................................................................................................................. 215

Supported Standards............................................................................................................................................. 216

WiMAX/IEEE References .............................................................................................................................. 216

IEEE Standards ............................................................................................................................................... 216

IETF References .............................................................................................................................................. 216

Object Management Group (OMG) Standards ................................................................................................ 217

ASN Paging Controller and Location Registry Overview ........................... 219

Introduction .......................................................................................................................................................... 220

Description of PC/LR Support ........................................................................................................................ 222

Licenses ........................................................................................................................................................... 222

Paging and Location Update Procedures ......................................................................................................... 222

▄ Cisco ASR 5000 Series Product Overview

OL-22938-02

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