1. 21-07-0010-02-0000 IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: Title: Handover flow chart between 802.11 and 802.16 Date Submitted: May 24, 2007 Authors or Source(s):Junxiang Guo, Guiming Shu Abstract: This contribution proposes updated handover flow procedures chart between 802.11 and 802.16 in A.5 in accordance with the new template and new message names.

2. 21-07-0010-02-0000 IEEE 802.21 presentation release statements: This document has been prepared to assist the IEEE 802.21 Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.21. The contributor is familiar with IEEE patent policy, as outlined in Section 6.3 of the IEEE- SA Standards Board Operations Manual and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/guide.html> Section 6.3 of the IEEE- SA Standards Board Operations Manualhttp://standards.ieee.org/guides/opman/sect6.html#6.3 http://standards.ieee.org/board/pat/guide.html

3. 21-07-0010-02-0000 Scan for Candidate Network Link Going Down Indication Information Query A.5 Example handover flow chart between 802.11 and 802.16 (1/4) Mobile Node Serving Network (WLAN) Other Network Candidate Network (WMAN) Other Network MAC 802.11 MAC 802.16 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

4. 21-07-0010-02-0000 Mobile Node Serving Network (WLAN) Other Network Candidate Network (WMAN) Candidate Network( (WMAN) ) Other Network MAC 802.11 MAC 802.16 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 802.11 and 802.16 (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

5. 21-07-0010-02-0000 Link Up Indications Mobile NodeServing Network (WLAN)Other NetworkCandidate Network (WMAN) Other Network MAC 802.11 MAC 802.16 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 802.11 and 802.16 (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

6. 21-07-0010-02-0000 Handover Response Link_Handover_Complete.indication MIH_MN_HO_Commit.confirm DSA_REQ DSA_RSP A.5 Example handover flow chart between 802.11 and 802.16 (4/4) MAC 802.11 MAC 802.16 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