1. 21-10-0129-02-0000 IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-10-0129-02-0000 Title: IEEE 802.21 Key Features Date Submitted: July 13, 2010 Presented at IEEE 802.21 session #39 in San Diego Authors or Source(s): Junghoon Jee (ETRI) jhjee@etri.re.kr Abstract: This contribution highlights the key features of IEEE 802.21 defines MIH services to facilitate the discussion with IEEE 802.19.1 TG 1

2. 21-10-0129-02-0000 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 stated in Section 6 of the IEEE-SA Standards Board bylaws and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/faq.pdf> Section 6 of the IEEE-SA Standards Board bylawshttp://standards.ieee.org/guides/bylaws/sect6-7.html#6http://standards.ieee.org/board/pat/faq.pdf

3. Overview IEEE Std 802.21™-2009 IEEE Standard for Local and metropolitan area networks - Part 21: Media Independent Handover Services Key Features Three services: Event Service, Command Service, and Information Service Defines a new functional entity called MIHF (MIH Function) Facilitates Multi-Radio network discovery and selection Provides abstracted services to higher layers. Communicates with the lower layers of the mobility- management protocol stack through technology-specific interfaces. MIH peer communication is performed through MIH Protocol 21-10-0129-02-0000

4. MIH Event Service State Change Predictive Target Link MIH Information Service Available Networks Neighbor Maps Network Services MIH Command Service Link Connectivity Control Client Initiated Network Initiated Vertical Handovers 802.21 provides ND&S mechanisms across IEEE 802 and 3G(+) networks IEEE 802.21 MIH Key Features (2) 21-10-0129-02-0000

5. PoA:L2 Point of Attachment (AP/BS) PoS: Point of Service MN: Mobile Node MIH: Media Independent Handover MIH Communication Model 21-10-0129-02-0000

6. MIH Event Service Enables the higher layers (L3 or above) to capture the radio link status in a standard manner Mapping media specific link layer events to Media Independent Events Link layer events From specific link layers to MIHF MIH events From MIHF to higher layers 21-10-0129-02-0000

7. Remote Events MIH events between different MIH entities Event lists (MIH) Link_Detected.indication (MIH) Link_Up.indication (MIH) Link_Down.indication (MIH) Link_Parameters_Report.indication (MIH) Link_Going_Down.indication (MIH) Link_Handover_Imminent.indication (MIH) Link_Handover_Complete.indication (MIH) Link_PDU_Transmit_Status.indication MIH Event Service (2) 21-10-0129-02-0000

8. MIH Event Service (3) MIH Remote Event Service Flow 21-10-0129-02-0000

9. Enables the higher layers to control the link connectivity Remote communication among peer MIHF entities Link commands From MIH to link layers MIH commands From upper layer to MIH MIH Command Service 21-10-0129-02-0000

10. Command lists MIH_Capability_Discover MIH_Register/MIH_Deregister MIH_Event_Subscribe/MIH_Event_Unsubscribe MIH_Link_Actions MIH_Link_Get_Parameters MIH_Net_HO_Candidate_Query, MIH_MN_HO_Candidate_Query MIH_N2N_HO_Query_Resources MIH_Net_HO_Commit, MIH_MN_HO_Commit MIH_MN_HO_Complete, MIH_N2N_HO_Complete MIH_Get_Information MIH_Push_Information MIH Command Service (2) 21-10-0129-02-0000

11. MIH Command Service (3) MIH Remote Command Service Flow 21-10-0129-02-0000

12. Provides a framework and corresponding mechanisms to discover and obtain surrounding heterogeneous network information Information Elements (IEs) General overview of network Location of PoAs, IP version, Operator Link layer parameters Channel, frequency, PHY types, data rates, Supported higher layer services or applications at the access network MIP, VPN, SIP, etc. MIH Information Service 21-10-0129-02-0000

13. Two types of information transfer Pull Mode: GET-RESPONSE Push Mode: One way INDICATION Push Model Information can be pushed to MN by the operator MIH Registration is mandatory for use with this push model MIH_Push_Information MIH Information Service (2) 21-10-0129-02-0000

14. Relationship with other Groups Media specific changes IEEE 802.11 IEEE 802.16 MIH capability support in L2 MAC frames MAC container to deliver MIH frames over L2 L2 SAP extensions to support MIHF WiMAX Forum WiFi-WiMAX IWK is based on IEEE 802.21 MIH IS Higher layer MIH support Higher layer transport of MIH frames RFC 5677 - IEEE 802.21 Mobility Services Framework Design (MSFD) MIHF Discovery RFC 5678 - Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Options for IEEE 802.21 Mobility Services (MoS) Discovery RFC 5679 - Locating IEEE 802.21 Mobility Services Using DNS 21-10-0129-02-0000

15. IEEE 802.21 Current Status 802.21 WG Baseline specification completed in 2008 Leadership Change from March 2010 Chair: Subir Das (Telcordia), Vice Chair: Juan Carlos Zuniga (InterDigital), Secretary: Anthony Chan (Huawei) 802.21a TG Security Extensions to Media Independent Handover Services MIH Secure Signaling, Optimized Authentication Chair: Yoshihiro Ohba (Toshiba), Editor: Lily Chen (NIST) Proposal discussion 802.21b TG Handovers for Downlink only Technologies (T-DMB, DVB-H, Media- FLO) Chair: Juan Carlos Zuniga (InterDigital), Vice Chair: Burak Simsek (Fraunhofer), Editor: Hongseok Jeon (ETRI) Preparing Letter Ballot

16. IEEE 802.21 Current Status (2) 802.21c TG Optimized Single Radio Handover Solutions Chair: Junghoon Jee (ETRI), Vice Chair: Anthony Chan (Huawei) Proposal Discussion 802.21 Wireless Network Management SG Chair: Johannes Lessmann (NEC) Preparing PAR and 5C Related Work Emergency Service: 802.23 WG Multi-Radio Power Management SG (past) Further information IEEE Std 802.21™-2008 IEEE 802.21 Tutorial http://www.ieee802.org/21/Tutorials/802%2021-IEEE-Tutorial.ppt 21-10-0129-02-0000

17. Thank You! 21-10-0129-02-0000