1. IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-17-0008-00-0000
Title: Proposal for a corrigenda PAR of IEEE
Date Submitted: February 23, 2017
Presented at IEEE session #79 in Vancouver, BC, Canada
Authors or Source(s):
 Tomoki Takazoe (Panasonic), Hyeong-Ho Lee (ETRI), Naoki Ogura (Toshiba), Yoshikazu Hanatani (Toshiba)
Abstract: This contribution proposes a project to issue corrigenda on IEEE

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
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 stated in Section 6 of the IEEE-SA Standards Board bylaws < and in Understanding Patent Issues During IEEE Standards Development

3. Outline IEEE 802.21-2017 has a minor inconsistency.
A value of parameter L in clause 9.6 is not explicitly described.
Implementers may be confused by the inconsistency.
We can solve the above problem by minor corrections.
We propose to make a corrigenda PAR to issue an errata of IEEE

4. Inconsistency in IEEE 802.21-2017
p.220 in IEEE P802.21m/D07.
p.212 in IEEE P802.21m/D07.
However, any description regarding parameter L is not found in Consistency between and is needed. The description for parameter L should be added in to resolve this issue.
The paragraph indicates that L is determined by selected group ciphersuite described in

5. Suggested corrections (1/3)
p.212 in IEEE P802.21m/D07.
L = L1 + L2 is determined by selected group ciphersuite described in and group key distribution ciphersuites described in

6. Suggested corrections (2/3)
p.220 in IEEE P802.21m/D07. L1
128
Add new rows to explicitly describe L = L1 + L2.
128 L2
128

7. Suggested corrections (3/3)
p.213 in IEEE P802.21m/D07.
Return Result(n). MIGSK is the left most L1 bits of Result(n). MIGKVK is the L1+1 to L1+L2 bits from the left of Result(n) if L2 is not ‘0’, and MIGKVK is not included if L2 is ‘0’.