1. IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-14-0169-00-REVP
Title: Review of P802.21Rev
Date Submitted: November 5, 2014
Presented at IEEE session #65 in San Antonio
Authors or Source(s):
 Yoshihiro Ohba (Toshiba)
Abstract: This contribution reviews IEEE Rev (DCN )
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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
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3. rev = base + a + b – handover (+ d?)
Note: handover-specific text is red-colored in 21rev
(probably intended to be moved to )
802.21a
802.21b
802.21c ?
802.21d
Group Management (including group security)
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4. Review Comments (Overall: the draft is well written, thanks to Charles Perkins)
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5. 1. Introduction
1.1, 1.2, 1.3 are still specific to handovers. Those clauses should be revised to be general to cover all possible media-independent services
In 1.3, the following items that are listed as not within the scope of this standard should be removed
Intra-technology handover [except for handovers across extended service sets (ESSs) in case of IEEE ] 
 this should be moved to
Handover policy
 this should be moved to
Security mechanisms
 this is specified in rev
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6. 5: General architecture
5.1 (Introduction) part needs to be rewritten
In (MISF design principles), item e) is handover-specific, thus should be revised to be more generic
In , the following paragraphs are handover-specific, thus should be moved to :
“This standard facilitates both mobile-initiated and network-initiated handovers. Handovers are initiated by changes in the wireless environment that leads to the selection of a network that supports a different access technology other than the serving network.
During network selection, the MN and the network need to exchange information about available candidate networks and select the best network. The network selection policy engine can select a different network than the current one, which can necessitate an inter-technology handover. Network selection and handover initiation are outside the scope of mobility management protocols such as mobile IP (MIP) and session initiation protocol (SIP). Once a new network has been selected and handover has been initiated, mobility management protocols handle packet routing aspects such as address update and transfer of packet delivery to the new network.”
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7. 7. SAPs and primitives
(related to Link_Capability_Discover), and , , and (related to MIH_Capability_Discover) should have SupportedLinkActionsList specified in b
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8. 8. Media independent services protocol
Clause 8 should incorporate changes made in b
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9. Annex H: MIIS Basic Schema
This annex should be replaced with a reference to a URL for MIIS Basic Schema
 Requires to create a permanent IEEE URL storing the MIIS Basic Schema
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10. Annex J.2: IEEE MIB
This annex can be better replaced with a reference to a URL for IEEE MIB
 Recommended to create a permanent IEEE URL storing the IEEE MIB
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