Saturday, 17 March 2012

IP level user/session VPN

based upon the selections in step 9. IP level user/session credentials from step 7 are used to authenticate and authorize inter-technology IP sessiontransfer. The common IP mobility anchor, uponreceiving the binding registration (sent by the UEover RAT B for client-based mobility, or by RAN Bfor network-based mobility) re-affirms the sameIP address for the session and switches the datapath tunnel from the RAN A to the RAN B. Step 12. UE completes IP connectivity establishment and buffering procedures started in step 10.Bearer path under the virtual interface is switchedto RAT B. Step 13. IP and application sessions continue overRAT B.Seamless user experience on inter-technologyhandover is created by a combination of make-before

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