1. IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-07-xxxx-00-0000
Title: For SB1 Comment #245
Date Submitted: September, 2007
Presented at IEEE session #23 in Atlanta
Authors or Source(s): Chan-Wah Ng
Abstract: This contribution explains the comment #245 for Sponsor Ballot #1 and suggests resolution.
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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 stated in Section 6 of the IEEE-SA Standards Board bylaws < and in Understanding Patent Issues During IEEE Standards Development
IEEE 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. Mapping of MIH_Link_SAP
Current draft defines MIH_Link_SAP as a SAP provided by the link layer technologies
Given that most link layers (802.3, , etc) are already implemented:
It is unlikely for implementers of link layers to provide such SAPs
It is more likely that implementer have to map native link layer SAPs to the MIH_Link_SAP
Functionally, it is better to formalize this with a mapping function in the architecture
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4. Suggested Architecture
The general reference model in Fig. 4:
Add this
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5. Suggested Architecture
The addition will affect all link layers specific reference models in Sect 5.5.
For instance, Fig. 6 would be:
Add this
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6. Link SAP Mapping Function
The proposed Link SAP Mapping Function:
Is not within the scope of
It is merely defined as a formal approach for link layer implementers to map existing link layers SAP to the defined MIH_Link_SAP
Example will be the work on the MAC State Convergence layer by u
It also corresponds to the suggested mappings in Annex L
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7. Error Code for MIH_Link_SAP
Some MIH_Link_SAP cannot be easily mapped with existing link layer SAPs. Eg:
Link_Going_Down in
Link_Event_Rollback in /3GPP/3GPP2
Possible resolutions:
provide new error code in MIH_Link_SAP to indicate that the implemented Link SAP Mapping Function does not have a mapping for the requested MIH_Link_SAP
provide a new MIH_Link_SAP for MIHF to query the Link SAP Mapping function the set of MIH_Link_SAP that are implemented
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