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Re: [STDS-802-11-TGM] CID 2056



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

For the S1G case we may receive an NDP (Null Data PPDU) which won't result in receiving a PSDU, so PPDU makes sense (to me).

Thanks,
Dave


On Wed, Mar 30, 2022 at 5:35 AM Mark Rison <m.rison@xxxxxxxxxxx> wrote:

Change “maximum duration of the data stream” to “duration of the PPDU” at REVme D1.1

P3794L60

P4487L43

 

Change “data stream” to “PPDU” at REVme D1.1

P3992L60

 

It seems to me that these three should have the same change.  They are all

of the form

 

searching for <SIG field(s)> in order to set the maximum duration of the data stream

 

Copying the two Daves for the S1G expertise.

 

Change “data stream” to “PSDU” at REVme D1.1

P3514L54

P3624L2

 

This is arguably also the case for the instance at P3624L2, though this

is about length not maximum duration for some reason:

 

searching for SIGNAL and HT-SIG in order to set the length of the data stream

 

and change "data string" to "data stream" at 3479.8, 3553.53, 3554.9

 

What about the "data string"s?  I think they should be fixed too.  I

missed one location: they are at 3479.8/18, 3553.53, 3554.9.

 

Thanks,

 

Mark

 

--

Mark RISON, Standards Architect, WLAN   English/Esperanto/Français

Samsung Cambridge Solution Centre       Tel: +44 1223  434600

Innovation Park, Cambridge CB4 0DS      Fax: +44 1223  434601

ROYAUME UNI                             WWW: http://www.samsung.com/uk

 

From: Youhan Kim <youhank@xxxxxxxxxxxxxxxx>
Sent: Tuesday, 29 March 2022 17:58
To: STDS-802-11-TGM@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGM] CID 2056

 

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

Merging threads:

 

To expedite the discussion on the next call, here are two potential options.

  • I am fine with option 1
  • I am fine with the non-DMG non-S1G PHY related parts of option 2 (the ones w/o any color highlighted)
    • There are MAC related changes which MAC folks should confirm (I highlighted these with yellow)
    • There is a DMG PHY related change which DMG folks should confirm (I highlighted this with blue)
    • There is a S1G PHY related change which S1G folks should confirm (I highlighted this with green)

 

Thanks

Youhan

 

 

 

Option 1:

REJECTED

Data stream does not always mean PSDU.

 

 

 

Option 2 (Latest proposal from Mark Rison + minor updates from Youhan.  Requires more work by others – the ones highlighted in colors):

REVISED

 

Change “data streams” to “PSDUs” at REVme D1.1

P199L61

P200L54

 

Change “data stream” to “PSDU” at REVme D1.1

P3514L54

P3624L2

 

Change “data stream” to “MSDU stream” at REVme D1.1

P521L30

P522L30

 

Change “data stream” to “bit stream” at REVme D1.1

P3677L5

 

Change “maximum duration of the data stream” to “duration of the PPDU” at REVme D1.1

P3794L60

P4487L43

 

Change “data stream” to “PPDU” at REVme D1.1

P3992L60

 

 

 

 

From: M Montemurro montemurro.michael@xxxxxxxxx
Sent: Monday, March 28, 2022 2:10 PM
To: Jon Rosdahl jrosdahl@xxxxxxxx
Cc: Youhan Kim youhank@xxxxxxxxxxxxxxxx; STDS-802-11-TGM@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGM] CID 2056

 

WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.

Hi Jon,

 

Could you add Youhan's comments in the adhoc notes. Given that this is ready for motion already, we can revisit at the beginning of the next call. 

 

Thanks,

 

Mike

 

 

 

From: Mark Rison <m.rison@xxxxxxxxxxx>
Sent: Monday, March 28, 2022 11:32 AM
To: Youhan Kim <youhank@xxxxxxxxxxxxxxxx>; STDS-802-11-TGM@xxxxxxxxxxxxxxxxx
Subject: RE: CID 2056

 

WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.

Thanks for looking at these, Youhan.

 

So maybe the answer is to change "data stream" as follows (my D1.1 doesn't

have the same locations as Youhan's, though):

 

Location

Youhan’s Feedback

Change "data stream" to

P198L61

P199L53

P3512L54

P3622L2

“Data stream” is equivalent to PSDU here IMO

199.61, 200.54 PSDU

P203L25

“Data stream” means “spatial streams” here, not PSDU

204.24 <no change, it's OK here>

P520L57

P521L59

I don’t know what the is exact definition of “data stream” here is (context = DELBA)

521.30, 522.30 MSDU stream (or change "of the data stream that uses the block ack agreement" to

"of the block ack agreement")

P3097L37

I don’t know what the is exact definition of “data stream” here is (context = WEP)

3099.37 <ignore, WEP is deprecated>

P3583L14

“Data stream” is not PSDU here.  Rather, this is the LDPC encoder output.

3585.13 no change, it's OK here

P3675L5

“Data stream” is not PSDU here.  Rather, this is the RS encoder output.

3677.5 bit stream (to match surrounding text)

P3711L20 (Figure 21-10)

“Data stream” is not PSDU here.  Rather, this is the BCC encoder input or output (not clear which one on a quick glance), where there are N_ES parallel BCC encoders.

Also, prior to BCC encoder, PHY has added PHY padding on top of PSDU.

3713.20 no change, it's OK here

P3551L58

P3711L16 (Figure 21-10)

“Data stream” is not PSDU here.  Rather, this corresponds to PSDU + PHY padding.

3713.16 no change, it's OK here

P3792L59

P4485L43

PPDU seems to be the more correct interpretation of “Data stream” here rather than PSDU.

3794.59, 4487.43 PPDU

P3990L60

This is S1G, and I don’t know whether “data stream” here is equivalent to PSDU.

3992.60 PPDU

 

Also change "data stream" to "PPDU" at 3514.54, 3624.2

and change "data string" to "data stream" at 3479.8, 3553.53, 3554.9

but otherwise leave "data stream" a few lines down in each case.

 

Thanks,

 

Mark

 

--

Mark RISON, Standards Architect, WLAN   English/Esperanto/Français

Samsung Cambridge Solution Centre       Tel: +44 1223  434600

Innovation Park, Cambridge CB4 0DS      Fax: +44 1223  434601

ROYAUME UNI                             WWW: http://www.samsung.com/uk

 

From: Youhan Kim <youhank@xxxxxxxxxxxxxxxx>
Sent: Monday, 28 March 2022 18:42
To: STDS-802-11-TGM@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGM] CID 2056

 

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

Hi, Mike, Mark Rison and all,

 

At the end of today’s TGme teleconference, I was asked whether I had any comments or objections on marking CID 2056 as ACCEPTED.  I didn’t have any comments at the time as I was not familiar with the CID and was not following the discussion on the call (sorry).

 

I have subsequently reviewed CID 2056, and do not feel ACCEPTED is the appropriate resolution.

 

CID

Commenter

Clause Number(C)

Page(C)

Line(C)

Comment

Proposed Change

2056

Mark RISON

3.2

There are about a dozen "data stream"s, but this term is not defined

Add a definition "data stream: A physical layer (PHY) service data unit (PSDU)."

 

There are 16 occurrences of “data stream(s)” in REVmd D1.1.

 

Location

Youhan’s Feedback

P198L61

P199L53

P3512L54

P3622L2

“Data stream” is equivalent to PSDU here IMO

P203L25

“Data stream” means “spatial streams” here, not PSDU

P520L57

P521L59

I don’t know what the is exact definition of “data stream” here is (context = DELBA)

P3097L37

I don’t know what the is exact definition of “data stream” here is (context = WEP)

P3583L14

“Data stream” is not PSDU here.  Rather, this is the LDPC encoder output.

P3675L5

“Data stream” is not PSDU here.  Rather, this is the RS encoder output.

P3711L20 (Figure 21-10)

“Data stream” is not PSDU here.  Rather, this is the BCC encoder input or output (not clear which one on a quick glance), where there are N_ES parallel BCC encoders.

Also, prior to BCC encoder, PHY has added PHY padding on top of PSDU.

P3551L58

P3711L16 (Figure 21-10)

“Data stream” is not PSDU here.  Rather, this corresponds to PSDU + PHY padding.

P3792L59

P4485L43

PPDU seems to be the more correct interpretation of “Data stream” here rather than PSDU.

P3990L60

This is S1G, and I don’t know whether “data stream” here is equivalent to PSDU.

 

 

So, my suggested resolution to CID 2056 is:

REJECTED

Data stream does not always mean PSDU.

 

 

Thanks.
Youhan

 


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--
Dave Goodall
Morse Micro

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