IEEE MEDIA INDEPENDENT HANDOVER DCN: Title: Handover flow chart between and Date Submitted: May 24, 2007 Authors or Source(s):Junxiang Guo, Guiming Shu Abstract: This contribution proposes updated handover flow procedures chart between and in A.5 in accordance with the new template and new message names.

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Scan for Candidate Network Link Going Down Indication Information Query A.5 Example handover flow chart between and (1/4) Mobile Node Serving Network (WLAN) Other Network Candidate Network (WMAN) Other Network MAC MAC MIHF MIH User UP Entity MIH User MIH User PoSAPAPBSPoS-C1 MIH User BSPoS-Cn MIIS Server UP Entity MIH_Get_Information.request MIH_Get_Information Request MIH_Get_Information Response MIH_Get_Information.confirm Measurement Report Traffic Flow between MN and WLAN MLME_Link_Parameters_Change.indication MIH_Link_Parameters_Report.indication MLME-Link_Going_Down.indication MIH_Link_Going_Down.indication MIH_Scan.request C_HO-REQ C_HO-RSP Receive DL_MAP, UL_MAP, DCD, UCD messages MIH_Scan.response Resource Availability Check MIH_MN_HO_Candidate_Query.request MIH_MN_HO_Candidate_Query Request MIH_N2N_HO_Query_Resources.request MIH_N2N_HO_Query_Resources Request MIH_MN_HO_Candidate_Query.indication MIH_N2N_HO_Query_Resources.indication

Mobile Node Serving Network (WLAN) Other Network Candidate Network (WMAN) Candidate Network( (WMAN) ) Other Network MAC MAC MIHF MIH User UP Entity MIH User MIH User PoS APAP BSPoS-C1 MIH User BSPoS-Cn MIIS Server UP Entity A.5 Example handover flow chart between and (2/4) MIH_MN_HO_Candidate_Query Response MIH_MN_HO_Candidate_Query.confirm MIH_N2N_HO_Query_Resources.confirm MIH_MN_HO_Candidate_Query.response MIH_N2N_HO_Query_Resources Response 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 Resource Availability Check Handover Request MIH_MN_HO_Commit.request (LINK_POWER_UP, LINK_POWER_DOWN Execution Delay != 0) MIH_MN_HO_Commit Request MIH_MN_HO_Commit.indication

Link Up Indications Mobile NodeServing Network (WLAN)Other NetworkCandidate Network (WMAN) Other Network MAC MAC MIHF MIH User UP Entity MIH User MIH User PoS APAP BSPoS-C1 MIH User BSPoS-Cn MIIS Server UP Entity Authentication &Key Exchange REG_REQ REG_RSPC-NEM-RSP (registration) C-NEM-REQ (registration) MIH_Link_Up.indication DHCP A.5 Example handover flow chart between and (3/4) Handover Response Resource Reservation MIH_MN_HO_Commit Response MIH_MN_HO_Commit.response MIH_N2N_HO_Commit Request MIH_N2N_HO_Commit Response MIH_N2N_HO_Commit.indication MIH_N2N_HO_Commit.response MIH_N2N_HO_Commit.request MIH_N2N_HO_Commit.response Establish new L2 connection (Make-before-Break) Triggered by previous local MIN_MN_Commit.request (Could happen in parallel with Resource Reservation) RNG_REQ RNG_RSP C_NEM-RSP (ranging) C_NEM-REQ (ranging) SBC_REQ SBC_RSP

Handover Response Link_Handover_Complete.indication MIH_MN_HO_Commit.confirm DSA_REQ DSA_RSP A.5 Example handover flow chart between and (4/4) MAC MAC MIHF MIH User UP Entity Mobile NodeServing Network MIH User MIH User PoSAP Other NetworkCandidate Network (WMAN) BSPoS-C1 MIH User BSPoS-Cn Other Network MIIS Server UP Entity IP connectivity restored Traffic Flow re-established Link Down Indications MIH_Link_Down.indication Link_Down.indication MIH_MN_HO_Complete.request MIH_MN_HO_Complete Request (Status = Success) 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 Handover Completion and Candidate PoS becomes new Serving PoS Handover Completion and Candidate PoS becomes new Serving PoS MIH_N2N_HO_Complete Response MIH_N2N_HO_Complete.confirm MIH_MN_HO_Complete Response MIH_MN_HO_Complete.confirm MIH_MN_HO_Complete.response Mobile IP Registration/Binding Update