Re: [STDS-802-11-TGM] request for comments: proposed REvME changes to 26

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Hi Robert,

Thank you for your feedback. I am ok with your proposed text. There are other places of “supports” in the spec, but we can address those at a different time since the CID only covers this part of the text.

Do you want to be listed as an co-author for this CR?

Xiaofei Clement Wang

Principal Engineer | InterDigital

T: (631) 622.4028

E: Xiaofei.wang@xxxxxxxxxxxxxxxx

From: Stacey, Robert <robert.stacey@xxxxxxxxx>
Sent: Thursday, April 18, 2024 5:13 PM
To: STDS-802-11-TGM@xxxxxxxxxxxxxxxxx; Xiaofei Wang <Xiaofei.Wang@xxxxxxxxxxxxxxxx>
Subject: Re: request for comments: proposed REvME changes to 26.1

Hello Xiaofei,

I think we are tying ourselves in knots here. The rewording implies that the features have a mandatory-ness (or optional-ness) that is independent of the HE STA. But that is not the case; an HE STA is defined by this collection of mandatory and optional features. Also, I find it problematic to use the normative verbs at two levels: at the feature definition level and at the "HE STA supports" level.

For example, one of the first features in Clause 26 is something called "TXOP duration-based RTS/CTS". The HE AP uses it by setting the "TXOP Duration RTS Threshold subfield" a certain way. If the HE AP sets it one way it's in use, if it sets it another way it's not in use. But can we say that the feature itself is an optional feature? Or mandatory feature? I don't think so.

So... getting back to the intent of the statement.

The intent of the statement is to define the MAC and MLME of an HE STA as a bunch of features defined in Clause 26 plus a bunch of features defined in Clauses 10, 11, etc. and to give precedence to Clause 26 definitions.

If using the word "supports" implies mandatory implementation, then we need a different word or a different phrasing.

How about...

The MAC and MLME of an HE STA comprises the functions defined in Clause 26 as well as the functions defined in Clause 10, the MLME functions defined in Clause 11 and the security functions defined in Clause 12, except when the functions defined in Clause 26 supersede the functions defined in Clause 10 or Clause 11.

-Robert

From: Xiaofei Wang <00001995ce968e76-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: Thursday, April 18, 2024 1:07 PM
To: STDS-802-11-TGM@xxxxxxxxxxxxxxxxx <STDS-802-11-TGM@xxxxxxxxxxxxxxxxx>
Subject: [STDS-802-11-TGM] request for comments: proposed REvME changes to 26.1

--- This message came from the IEEE 802.11 Task Group M Technical Reflector ---

Dear all,

For RevME, there is a comment 7024 for 26.1 regarding the word “supports”.

The proposed CR is to change Subclause 26.1 as follows (as shown below and in 11-24/718r1). It is mostly editorial changes. Please let me know if you have any comments/changes. There are also a number other sentences that may need to be changed regarding the word “supports”.

26. High-efficiency (HE) MAC specification(11ax)

26.1 Introduction

An HE STA supports the mandatory MAC and MLME functions and may support the optional MAC and MLME functions:

defined in Clause 26 (High-efficiency (HE) MAC specification(11ax))
defined in Clause 10 (MAC sublayer functional description) and in Clause 11 (MLME), and the security functions defined in Clause 12 (Security), except when the functions in Clause 26 (High-efficiency (HE) MAC specification(11ax)) supersede them.

A frame successfully transmitted by a non-AP STA in response to a Basic Trigger

frame is a successful frame exchange sequence(#109) initiated by the STA as referred to in Clause 11 (MLME) and Clause 12 (Security).

CID	Clause Number(C)	Page(C)	Line(C)	Comment	Proposed Change	Owning Ad-hoc
7024	26.1	4047	7	The spec needs to clearly define what the word "supports" means. Traditional if a STA "supports" a feature or functionality, it means that it implements it. However, this sentence "An HE STA supports the MAC and MLME functions defined in Clause 26 (High-efficiency (HE) MAC specification(11ax)) in addition to the MAC functions defined in Clause 10 (MAC sublayer functional description), the MLME functions defined in Clause 11 (MLME), and the security functions defined in Clause 12 (Security), except when the functions in Clause 26 (High-efficiency (HE) MAC specification(11ax)) supersede the functions in Clause 10 (MAC sublayer functional description) or Clause 11 (MLME)." causes confusion since a STA clearly does not always "support" all the functions defined in all these clauses. This sentence in RevME has been used as a base for rejecting another occurrence of the word "support" for a later amendment claiming that this sentence implies that "supports feature A" does not always mean a device will implement feature A.	either define "supports" can mean optionally implement, or use a different words to convey the meaning.	MAC

Xiaofei Clement Wang

Principal Engineer | InterDigital

T: (631) 622.4028

E: Xiaofei.wang@xxxxxxxxxxxxxxxx

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Re: [STDS-802-11-TGM] request for comments: proposed REvME changes to 26.1