Transcript 21-07-0205-00-0000-HandoverFlow-Update

IEEE 802.21 MEDIA INDEPENDENT HANDOVER
DCN: 21-07-XXXX-00-0000
Title: Handover Flow Diagrams Update
Date Submitted: May 14, 2007
Presented at IEEE 802.21 session in Montreal, QC, Canada
Authors or Source(s): Junghoon Jee
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Overview
• IEEE P802.21/D05.00 specifies handover procedures in the
Annex A.
• A.1 Mobile-initiated handover procedure
• A.2 Network-initiated handover procedure
• A.3 Network-initiated handover from 802.16 to 3G (Single
PoS)
• A.4 Handover from 3G to WLAN
• A.5 Example handover flow chart between 802.11 and
802.16
• A.6 Example handover flow charts for Mobile IP
• A.7 Handover flow diagram for abnormal cases
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Problems from A.3 to A.7
• Protocol message naming inconsistency with the normative
part.
• Use of previous MIH_Switch.
• Different assumption about the relationship MIH primitive and
lower layer connection setup or higher layer execution.
• Relationship between MIH_Net(MN)_HO_Commit and L2
connection setup.
• Relationship between MIH_MIH_MN_HO_Complete and
MIP registration.
• Related contributions
• 21-07-0110-01-0000-HO_SignallingDiagrams (A2, A3,
A4.1, A4.2)
• 21-07-0181-00-0000-Optimization about A.4.1and A.4.2
(A4.1, A4.2)
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Working Status
• Working on amending the A.3 based on the following rules.
• Follow the protocol name as defined from the normative part
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MIH_Net_HO_Candidate_Query Request
MIH_Switch should be changed by MIH_Net(MN)_HO_Commit
MIHF commands the layer 2 connection setup after receiving the
MIH_Net_HO_Commit.response from the MIH User.
MIH_Net_HO_Candidate_Query Request/Response need to be
exchanged for target network selection before the handover
commitment.
MIH User commands the MIH_MN_HO_Complete.request after
completing the MIP registration.
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A.3 Network-initiated handover from 802.16 to 3G (1/4)
Mobile Node
UP
Entity
MIH
User
MIHF MAC-S
Serving Network
MAC-C
PoA-S
PoS-S
Other Network
MIH
User
MIIS
Server
Candidate Network 1
PoA-C1
Traffic Flow over 802.16 Network
MIH_Configure_Link.request (ConfigurationRequestsList(Threshold setup))
MIH_Configure_Link Request
Link_Configure_Thresholds.request
Link_Configure_Thresholds.confirm
MIH_Configure_Link Response
MIH_Configure_Link.confirm
Link_Parameters_Report.indication(Current value))
MIH_Link_Parameters_Report Indication (LinkType = 802.16)
MIH_Link_Parameters_Report.indication
…
Link_Going_Down.indication
MIH_Link_Going_Down Indication (Confidence Level(<50%))
MIH_Link_Going_Down.indication
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PoS-C1
MIH
User
Candidate Network n
PoA-Cn
PoS-Cn
MIH
User
Other Network
UP
Entity
A.3 Network-initiated handover from 802.16 to 3G (2/4)
Mobile Node
UP
Entity
MIH
User
MIHF MAC-S
Serving Network
MAC-C
PoA-S
PoS-S
MIH
User
Other Network
MIIS
Server
Candidate Network 1
PoA-C1
PoS-C1
MIH
User
Candidate Network n
PoA-Cn
PoS-Cn
Other Network
MIH
User
Link_Action.request (LINK_LOW_POWER; LINK_SCAN)
Link_Action.confirm
Measurement Report
(Repeat pre-configured number of times)
Link_Parameters_Report.indication(Current value)
MIH_Link_Parameters_Report Indication (LinkType = 802.16)
MIH_Link_Parameters_Report.indication
Link_Get_Parameters.request
Link_Get_Parameters.confirm
MIH_Link_Parameters_Report Indication (LinkType = UMTS)
MIH_Link_Parameters_Report.indication
Link_Going_Down.indication
MIH_Link_Going_Down Indication (Confidence Level(>75%))
MIH_Link_Going_Down.indication
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UP
Entity
A.3 Network-initiated handover from 802.16 to 3G (3/4)
Mobile Node
UP
Entity
MIH
User
MIHF MAC-S
Serving Network
MAC-C
PoA-S
PoS-S
MIH
User
Other Network
MIIS
Server
Candidate Network 1
PoA-C1
PoS-C1
Candidate Network n
MIH
User
PoA-Cn
PoS-Cn
MIH
User
Other Network
UP
Entity
MIH_Net_HO_Candidate_Query.request
MIH_Net_HO_Candidate_Query Request
MIH_Net_HO_Candidate_Query.indication
MIH_Net_HO_Candidate_Query.response
MIH_Net_HO_Candidate_Query Response (HandoverAck == 0: Handover initiate)
MIH_Net_HO_Candidate_Query.confirm
MIH_N2N_HO_Query_Resources.request
MIH_N2N_HO_Query_Resources Request
MIH_N2N_HO_Query_Resources.indication
MIH_N2N_HO_Query_Resources.request
MIH_N2N_HO_Query_Resources.response
MIH_N2N_HO_Query_Resources Response
MIH_N2N_HO_Query_Resources.confirm
MIH_N2N_HO_Query_Resources.request
MIH_N2N_HO_Query_Resources Request
MIH_N2N_HO_Query_Resources.indication
MIH_N2N_HO_Query_Resources.response
MIH_N2N_HO_Query_Resources Response
MIH_N2N_HO_Query_Resources.confirm
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Target Decision
A.3 Network-initiated handover from 802.16 to 3G (3/4)
Mobile Node
UP
Entity
MIH
User
MIHF MAC-S
Serving Network
MAC-C
PoA-S
PoS-S
Other Network
MIH
User
MIIS
Server
Candidate Network 1
PoA-C1
PoS-C1
MIH
User
Candidate Network n
PoA-Cn
PoS-Cn
MIH_Net_HO_Commit.request
MIH_Net_HO_Commit Request
MIH_Net_HO_Commit .indication
MIH_Configure_Link.request
Establish new L2 connection
MIH_Configure_Link.confirm
MIH_Net_HO_Commit.response
MIH_Net_HO_Commit Response
MIH_Net_HO_Commit.confirm
MIH_N2N_HO_Commit.request
MIH_N2N_HO_Commit Request
MIH_N2N_HO_Commit Response
MIH_N2N_HO_Commit.confirm
Traffic Flow re-established
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MIH_N2N_HO_Commit.indication
MIH_N2N_HO_Commit.response
MIH
User
Other Network
UP
Entity
A.3 Network-initiated handover from 802.16 to 3G (4/4)
Mobile Node
UP
Entity
MIH
User
MIHF MAC-S
Serving Network
MAC-C
PoA-S
PoS-S
MIH
User
Other Network
MIIS
Server
Candidate Network 1
PoA-C1
PoS-C1
MIH
User
Candidate Network n
PoA-Cn
Link_Up.indication
MIH_Link_Up.indication
Mobile IP Registration/Binding Update
MIH_MN_HO_Complete.request
MIH_MN_HO_Complete Request
MIH_MN_HO_Complete.indication
MIH_N2N_HO_Complete.request
MIH_N2N_HO_Complete Request
MIH_N2N_HO_Complete.indication
MIH_N2N_HO_Complete.response
MIH_N2N_HO_Complete Response
MIH_N2N_HO_Complete.confirm
MIH_MN_HO_Complete.response
MIH_MN_HO_Complete Response
MIH_MN_HO_Complete.confirm
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PoS-Cn
MIH
User
Other Network
UP
Entity
Further Works
• Hopefully, we need to wrap up all the scenarios in a consistent
form during this meeting.
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