Presentation on theme: "21-06-xxxx-00-0000 IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-06-xxx-00-0000 Title: Pre-establishment of IP connectivity discussion Date Submitted:"— Presentation transcript:
21-06-xxxx-00-0000 IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-06-xxx-00-0000 Title: Pre-establishment of IP connectivity discussion Date Submitted: April 2006 Authors or Source(s): Qiaobing Xie Abstract: This is for discussion at the April 20, 2006 tele- conference
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21-06-xxxx-00-0000 Multi-interfaced Device under Overlapped Coverage Network 3 (UMTS) Network 2 (WiMAX) Network 1 (WiFi hot-spot) Soon to become a common scene
21-06-xxxx-00-0000 Pre-establishing IP Connectivity before handover Network 3 (UMTS) Network 2 (WiMAX) Network 1 (WiFi hot-spot) Pre-establish IP connections to potential handover target networks. Use the current connection to save battery and RF resources. A pre-established IP connection will be activated if a handover to that network actually happens and a sub- IP layer connection is set up. Shortens handover delay. When the mobile moves out of a coverage, the pre- established IP connection to that network will be removed.
21-06-xxxx-00-0000 Pre-authentication and pre-authorization Some work has started in IETF - AAA authentication/Authorization for target Authenticator while session is in progress on the serving Authenticator. - IETF 65th HOAKEY BOF (Yoshihiro Ohba) How can 802.21 facilitate this? Passing AAA contact address of neighbor networks thru MIH IS? etc. Pre-allocation of a valid IP address (and other IP layer parameters) How can 802.21 facilitate this? Passing IP Address Configuration methods of neighbor networks thru MIH IS; Passing DHCP contact address from the neighbor networks through MIH IS if DHCP is used; etc. What else 802.21 can provide? Whats needed to pre-establish an useful IP connectivity?