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Hello Roger, Bob, EC members, Below are responses to some of the comments made on the reflector related to the ongoing P802.11az CSD modification ballot. The ballot and direction indicated in the motion are in accordance with the 802 P&P, and I ask for your support of the motion. Thanks, Dorothy ============================== a)
Re: Roger Marks’ comment that “The argument about the limited coexistence impact seems pretty reasonable, but I think it
would be better to transfer that argument into a Coexistence Assurance document and circulate that during ballot so that the broader community can have a chance to review it. “
i. The WG11 position is that there is NO (not limited) coexistence
impact from the P802.11az amendment.
ii. The 802 Criteria for Standards Development (CSD) process
specifically provides for the ability of a project to indicate that a Coexistence Assurance Document is not applicable. I note that an amendment with “Not Applicable” means that the amendment is MORE limited in the scope of changes that can be made; the amendment
CANNOT make changes which would impact coexistence; an amendment must meet both PAR and CSD requirements. b)
Re: Bob Heile’s initial comment that “Even if the same PHY is being used, there may be new 802 Wireless Standards that have
been published in the meantime that should be examined with respect to coexistence assurance. If a CAD is provided I will vote approve.”
a.
P802.11az mechanisms use the 11n (HT2.4/5GHz), 11ac (VHT/5GHz), 11ax (HE 2.4/5- 7GHz), and 11ay (60GHz) PHYs.
i. The Coexistance Assurance document for P802.11ay was approved August
20, 2018. There have been no new 802 Wireless standards re: 60 GHz published in the meantime to examine.
ii. A revised version of the Coexistence Assurance document for P802.11
ax (covers 2.4 & 5-7GHz) will be balloted shortly. There are no new 802 Wireless standards published in the meantime to examine.
b.
Noting “should
be examined” in the comment, CADs are not required to consider standards published in the meantime.
i. For example, the recently approved (August 2018)
802.15.4x CAD, while indicating that no changes were made to the underlying PHY, did
not consider/require consideration of the 802 Wireless standards published in the meantime (since 2011). c)
Re: Bob Heile’s subsequent comment that “The stated rational *might* be an appropriate analysis if there were no PHY changes
at all, nor any MAC changes which affected over the air behavior. I find such situation unlikely given the stated goals of the task group and the scope of the PAR…”
i. The WG11 position is that indeed there is NO (not limited)
coexistence impact from the P802.11az amendment changes.
ii. If the 802 EC require that a project with “any MAC changes
which affected over the air behavior” have a CAD, then virtually every project will require a CAD – for example when any new frame that is transmitted over the air is defined. I fail to see how such a statement is remotely reasonable. An amendment modifying
security parameters in a transmitted frame would be included in such a definition. The phrase “affected over the air behaviour” is overly broad and not consistent with 802 CAD practice.
iii. The 802 Criteria for Standards Development (CSD) process
specifically provides for the ability of a project to indicate that a Coexistence Assurance Document is not applicable. I note that an amendment with “Not Applicable” means that the amendment is MORE limited in the scope of changes that can be made; the amendment
CANNOT make changes which would impact coexistence; an amendment must meet both PAR and CSD requirements.
============================== ------------------------ Dorothy Stanley Hewlett Packard Enterprise +1 630-363-1389 From: ***** IEEE 802 Executive Committee List ***** [mailto:STDS-802-SEC@LISTSERV.IEEE.ORG]
On Behalf Of Bob Heile Hi All
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