â–„ Cisco ASR 5000 Series Product Overview
WiMAX Reference Points and Interfaces ....................................................................................................... 166
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
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