1. 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 session #13 in Denver
Authors or Source(s):
 Guo Junxiang
Abstract: Propose to optimize the MIH model and the MIH_LINK_SAP
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2. IEEE 802.21 presentation release statements
This document has been prepared to assist the IEEE 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
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
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3. Current general MIH reference model
Figure 4 General MIH reference model and SAPs
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4. 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 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.
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5. 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
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6. 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 as the following:
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7. Optimized general MIH model (3)
Common_Link_SAP
These primitives apply to every media dependent SAPs, that is to say apply to 802.3_SAP, _SAP, _SAP,3GPP_SAP and 3GPP2_SAP:
table 15-Common_LINK_SAP Primitives
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8. 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):
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