IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-06-xxxx-00-0000 Title: Review on MIH general model Date Submitted: February, 17th, 2006 Presented at IEEE 802.21 session #13 in Denver Authors or Source(s):  Guo Junxiang Abstract: Propose to optimize the MIH model and the MIH_LINK_SAP 21-05-xxxx-00-0000

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Current general MIH reference model Figure 4 General MIH reference model and SAPs 21-05-xxxx-00-0000

Why to optimize current model Currently MIH_LINK_SAP has almost the same primitives as the MIH_SAP, which implies that the MIH layer only simply transfer these primitives from Link Layer to MIH user and the mapping work between the MIH_LINK_SAP and the media specific SAPs is done by the Link Layer, e.g., in Annex A-2, the mapping of 3GPP primitives to the 802.21 service primitives should be done by the 3GPP Layer (RR, LLC etc.), this may not be what was expected, indeed this mapping work should be done by MIH. In the current model, the mapping relationship is: media specific SAPs- <->MIH_LINK_SAP <->MIH_SAP. The mapping between MIH_LINK_SAP and MIH_SAP is superfluous. 21-05-xxxx-00-0000

Optimized general MIH model (1) MIH_SAP Media Independent Handover (MIH) Function Network Management system MIH Users (Layer3 or higher mobility protocol(L3MP),Handover Policy, Transport ,Applications) 802.3 802.11 802.16 3GPP 3GPP2 802.3_SAP MIH_NMS_SAP 802.11_SAP 802.16_SAP 3GPP_SAP 3GPP2_SAP MIH Information Service MIH Event Service MIH Command Service Figure 4 General MIH reference model and SAPs 21-05-xxxx-00-0000

Optimized general MIH model (2) In this proposed optimized MIH general model, 802.3_SAP etc. are abstract representations, they are corresponding to the following specific SAPs: 802.3_SAP： L_SAP 802.11_SAP：L_SAP，MLME_SAP 802.16_SAP：CS_SAP，C_MAP，M_SAP 3GPP_SAP：MIH_3G_LINK_SAP 3GPP2_SAP：MIH_3G2_LINK_SAP The MIH_LINK_SAP primitives are replaced by media dependent primitives, such as primitives of MIH_3G_LINK_SAP, M_SAP,C_SAP etc. The mapping of media specific primitives to MIH_SAP primitives is done by the MIH Function (MIH-ES, MIH_CS, MIH_IS). The MIH_LINK_SAP primitives disappear, thus the media dependent SAPs should add these common primitives (as their corresponding MIH_SAP primitives can not be mapped from existing media dependent SAPs): Link Event Discover, Link Event Register, Link Event DeRegister, Link Configure Thresholds, Link Get Information. These primitives can be kept somewhere separated from every media specific SAPs’ primitives. So we can replace 7.2.2.2 as the following: 21-05-xxxx-00-0000

Optimized general MIH model (3) 7.2.2.2 Common_Link_SAP These primitives apply to every media dependent SAPs, that is to say apply to 802.3_SAP, 802.11_SAP, 802.16_SAP,3GPP_SAP and 3GPP2_SAP: table 15-Common_LINK_SAP Primitives 21-05-xxxx-00-0000

Optimized general MIH model (4) Both the MIH_SAP and the media specific SAPs’ primitives can add the following parameters (for the purpose of primitives identified and distributed by MIH): 21-05-xxxx-00-0000