Transcript 21-06-0813-01-0000-LB1a-handover-big

• IEEE 802.21 MEDIA INDEPENDENT HANDOVER
• DCN:21-06-0813-01-0000-LB1a-handover-big-picture.ppt
• Title: LB 1a, Handover example flow with MIP
• Date Submitted: November, 2006
• Presented at IEEE 802.21 session #NN in Dallas, TX
• Authors or Source(s): Srinivas Sreemanthula
• Abstract: Study interactions with MIP
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Motivation
• An example to capture current understanding of MIH
interworking with IP mobility signaling
• Intent is to utilize the flow for following purposes, to identify
• Any superfluous or mandatory functionality (that lead to
inefficiency)
• Any missing functionality that is required
• How do we deal with superfluous functionality?
• May be there are other IP mobility mechanisms that may find
it useful
• But, mechanisms that already has this functionality should not
be forced to use it
• Logical approach is to make them optional for efficient
interworking related to known mobility mechanisms
• Two flows are shown a) MN Initiated b) Network Initiated
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a1)
Mobile Node
MN Initiated-I
MIH
User
MIH
F
Serving Network
MAC-1
MAC-2
Serving
POS
POA-S
MIH
User
Candidate Network 1
MIIS
Server
POAC1
Candidate
POS1
MIH
User
Candidate Access
Network 2
POAC2
Candidate
POS2
MIH
User
Traffic Flow between MN and Serving Network
Link_Parameters_Report.IND
MIH_Handover_Initiate.REQ
MIH_Handover_Initiate.IND
MIH_Handover_Prepare.REQ
MIH_Handover_Prepare.REQ
MIH_Handover_Prepare.REQ
MIH_Handover_Prepare.IND MIH_Handover_Prepare.IND
MIH_Handover_Prepare.RESP MIH_Handover_Prepare.RESPMIH_Handover_Prepare.RESP
MIH_Handover_Prepare.RESP
MIH_Handover_Prepare.CFM
MIH_Handover_Initiate.RESP
MIH_Handover_Initiate.RESP
MIH_Handover_Initiate.CFM
MIP_Proxy_Router_Adv
Decision
Results
in FBU
MIP_Fast_BU
?
MIP_Handover_initiate.REQ
Replace with
MIH_Handover_Commit.REQ
MIH_Handover_Commit.REQ
MIH_Handover_Commit.IND
MIH_Handover_Commit.RESP
MIH_Handover_Commit.RESP
MIP_Handover_initiate.ACK
MIH_Handover_Commit.CFM
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This can be
optional since there
is equivalent
* Commit can be possibly be done after link establishment in target. mobility signaling
a2)
Mobile Node
MN Initiated-II
MIH
User
MIH
F
MAC-1
Serving Network
MAC-2
“Link-Connect”
Serving
POS
POA-S
MIH
User
MIP_Fast_BAck
Candidate Network 1
MIIS
Server
POAC1
Candidate
POS1
MIH
User
Candidate Access
Network 2
POAC2
Candidate
POS2
MIH
User
MIP_Fast_BAck
Link Establishment
MIH_Link_Up
MIH_Link_Up
Tunnel Packets
MIP_Fast_BU
Forward Packets
Replace with
?
MIP_Fast_BU
MIH_Handover_Complete.REQ
MIH_Handover_Complete.REQ
MIH_Handover_Complete.IND
MIH_Handover_Complete.REQ
MIH_Handover_Complete.REQ
MIH_Handover_Complete.IND
MIH_Handover_Complete.RESP
MIH_Handover_Complete.RESP
MIH_Handover_Complete.CFM
MIH_Handover_Complete.RESP
MIH_Handover_Complete.RESP
MIH_Handover_Complete.CFM
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This can be
optional since there
is equivalent
mobility signaling
b1)
Mobile Node
NET Initiated-I
MIH
User
MIH
F
MAC-1
Serving Network
MAC-2
Serving
POS
POA-S
MIH
User
Candidate Network 1
MIIS
Server
POAC1
Candidate
POS1
MIH
User
Candidate Access
Network 2
POAC2
Candidate
POS2
MIH
User
Traffic Flow between MN and Serving Network
Link_Parameters_Report.IND
MIH_Link_Parameters_Report.IND
MIH_Link_Parameters_Report.IND
MIH_Handover_Initiate.REQ MIH_Handover_Initiate.REQ
MIH_Handover_Initiate.IND
MIH_Handover_Initiate.RESP
MIH_Handover_Initiate.RESP
MIH_Handover_Initiate.CFM
MIH_Handover_Prepare.REQ
MIH_Handover_Prepare.REQ
MIH_Handover_Prepare.REQ
MIH_Handover_Prepare.IND
MIH_Handover_Prepare.IND
MIH_Handover_Prepare.RESP MIH_Handover_Prepare.RESP MIH_Handover_Prepare.RESP
MIH_Handover_Prepare.RESP
MIH_Handover_Prepare.CFM
MIP_Proxy_Router_Adv
MIH_Handover_Commit.REQ
MIH_Handover_Commit.REQ
MIH_Handover_Commit.IND
MIP_Fast_BU
MIH_Handover_Commit.RESP
MIH_Handover_Commit.RESP
MIP_Handover_initiate.REQ
MIP_Handover_initiate.ACK
MIH_Handover_Commit.CFM
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* In this case, Handover commit is useful since Proxy-Adv cannot serve as a commit
b2)
Mobile Node
NET Initiated-II
MIH
User
MIH
F
Serving Network
MAC-1
MAC-2
“Link-Connect”
Serving
POS
POA-S
MIH
User
MIP_Fast_BAck
Candidate Network 1
MIIS
Server
POAC1
Candidate
POS1
MIH
User
Candidate Access
Network 2
POAC2
Candidate
POS2
MIH
User
MIP_Fast_BAck
Link Establishment
MIH_Link_Up
MIH_Link_Up
Forward Packets
MIP_Fast_BU
Tunnel Packets
MIP_Fast_BU
Replace with
?
This can be
optional since there
is equivalent
mobility signaling
MIH_Handover_Complete.REQ
MIH_Handover_Complete.REQ
MIH_Handover_Complete.IND
MIH_Handover_Complete.REQ
MIH_Handover_Complete.REQ
MIH_Handover_Complete.IND
MIH_Handover_Complete.RESP
MIH_Handover_Complete.RESP
MIH_Handover_Complete.CFM
MIH_Handover_Complete.RESP
MIH_Handover_Complete.RESP
MIH_Handover_Complete.CFM
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Conclusion
• Some remote MIH HO command signaling can be optimized with
use of the necessary MIP signaling by generating local events
from MIP (MIH-User) to MIHF
• Considering this optimization is MIP specific, the use of these
MIH commands can be made optional
• Events or notifications from MIH-User to MIHF is missing,
adding this to the MIH functionality is useful
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