1. Extensions needed for MIPv6 to resolve 4G wireless gaps
[mext] working group
Nov, 2010
© 2009 Wichorus Inc. All rights reserved.
© 2009 Wichorus Inc. All rights reserved.

2. What is missing in Mobile IPv6?
Mobile IP plays a minor role in “modern” 3GPP; why?
3GPP has long depended on protocol elements not provided by Mobile IP, especially GTP
Other design choices “inferred” by LTE architecture
3GPP unwilling to bring their needs into the IETF?
Using Mobile IP “could” have resulted in a much simpler specification for LTE
Hypothesis: 4G networking will continue to evolve
[mext] should be ready with a good evolutionary path
© 2009 Wichorus Inc. All rights reserved.

3. MIPv6 split Home Agent New extension to Binding Ack
Home Agent controller supplies the tunnel-termination address to MN
draft-perkins-mext-hatunaddr
© 2009 Wichorus Inc. All rights reserved.

4. GTP tunnel Allow GTP as a tunneling protocol
Data plane only; GTP-C specification for MIPv6 not included
draft-perkins-mext-gtpdata
© 2009 Wichorus Inc. All rights reserved.

5. MN Identifiers for RFC 4283 Lists some more ID types for RFC 4283
IPv6 Address
IMSI
P-TMSI
EUI-48 address
EUI-64 address
GUTI
draft-perkins-mext-4283mnids
No change from …-00.txt
© 2009 Wichorus Inc. All rights reserved.

6. MIPv6 Foreign Agent Extension to Binding Update
MN inform HA about alternate tunnel endpoint
draft-perkins-mext-fatunaddr
Oops, not there yet
Would be nice to have extension to Router Advertisement
Useful with draft-perkins-mext-gtpdata
© 2009 Wichorus Inc. All rights reserved.

7. MN delegation of authority
MN informs home agent that future binding updates will be performed by its proxy agent
draft-perkins-mext-authdel
Oops, not there yet
SHOULD be used in conjunction with draft-perkins-mext-fatunaddr
Would then essentially turn FA into MAG
Need to reconsider dual-binding decision from [netext]
© 2009 Wichorus Inc. All rights reserved.

8. Architecture (1) Internal HA
eNodeB UE
S-GW
P-GW
MME
HA-D
S-GW/P-GW
P-GW
GTP
MME
GTP
HA-C
pMME
S-GW
GTP
eNodeB UE