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Re: [STDS-802-11-AANI] 11-16/1151r1 - updated Draft Reply to Liaison from 3GPP RAN2 on Estimated Throughput 11-16-1384



Hi,

Thanks Youhan,

The intent is to better respond to the question highlighted by Mark in 3) feasibility of “Estimated Throughput” calculation by either STA or AP

 

As it is feasible, I assume we can say it.

 

Thanks

Laurent

 

From: Kim, Youhan [mailto:youhank@xxxxxxxxxxxxxxxx]
Sent: Wednesday, November 9, 2016 1:54 PM
To: Cariou, Laurent <laurent.cariou@xxxxxxxxx>; STDS-802-11-AANI@xxxxxxxxxxxxxxxxx
Subject: RE: [STDS-802-11-AANI] 11-16/1151r1 - updated Draft Reply to Liaison from 3GPP RAN2 on Estimated Throughput 11-16-1384

 

Hi, Laurent.

While I agree that APs in general could choose to estimate DL throughput via whichever mechanisms they desire, I don’t think there was anything specific in the ESP (Estimated Service Parameters)/”Estimated Throughput” to help APs estimated DL throughput.  So, I am curious why the red sentence is needed.

 

Regards,

Youhan

 

From: Cariou, Laurent [mailto:laurent.cariou@xxxxxxxxx]
Sent: Wednesday, November 09, 2016 11:07 AM
To: STDS-802-11-AANI@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-AANI] 11-16/1151r1 - updated Draft Reply to Liaison from 3GPP RAN2 on Estimated Throughput 11-16-1384

 

Hi Mark, all,

I think we can improve the current text by adding the following in red:

 

The “Estimated Throughput” metric was introduced in IEEE 802.11 REVmc D6.0 [2] with the intent to allow external entities to make better quality traffic steering decisions and network selection decisions by being able to predict the throughput that might be obtained through a link with an 802.11 STA [3]. The DL estimated throughput metric is defined to be computed by the STA, but could also be computed by the AP. Therefore, in principle, it can be applied to both the pre-activation and post-activation phases of LWA. The current draft of P802.11mc D8.0 [4] specification does not provide any specification for “Estimated Throughput” accuracy or the variation across different implementations.

 

Thanks

Laurent

 

From: Mark Rison [mailto:m.rison@xxxxxxxxxxx]
Sent: Wednesday, November 9, 2016 3:45 AM
To: STDS-802-11-AANI@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-AANI] 11-16/1151r1 - updated Draft Reply to Liaison from 3GPP RAN2 on Estimated Throughput 11-16-1384

 

I am a bit confused by the draft reply.

 

The request was for feedback on:

 

1) whether there are any accuracy requirements for “Estimated Throughput”,

2) “Estimated Throughput”'s variations across different implementations

3) feasibility of “Estimated Throughput” calculation by either STA or AP

4) if it would be feasible for IEEE to define “Estimated Throughput” accuracy requirements, if not already defined

5) other metrics which can also be useful for LWA operation

 

The draft reply addresses 1 and 2.  It does not address 3 or 4

and mentions but does not really address 5.  Conversely, it goes

into discussion of "pre-activation and post-activation phases of LWA" which does

not in any obvious way relate to the 5 requests made.

 

Incidentally, as regards 3 and 4, the ESTT mechanism was examined during

TGm sponsor ballot comment resolution, and the conclusion was that

it is not feasible to calculate in one direction (I forget which) because

required information is missing, and the calculations in R.7 are inaccurate

anyway.

 

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: Levy, Joseph S [mailto:Joseph.Levy@xxxxxxxxxxxxxxxx]
Sent: 9 November 2016 04:08
To: STDS-802-11-AANI@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-AANI] 11-16/1151r1 - updated Draft Reply to Liaison from 3GPP RAN2 on Estimated Throughput 11-16-1384

 

An updated Draft Reply to Liaison from 3GPP RAN2 on Estimated Throughput (11-16-1384) is available: https://mentor.ieee.org/802.11/dcn/16/11-16-1510-01-AANI-reply-to-liaison-from-3gpp-ran2-on-estimated-throughput-11-16-1384.docx

 

This document is the result of the drafting session held during the AANI SC  EVE session 8 November 2016.

 

Please review and comment.  The intent is to present this liaison for approval by the 802.11 WG. 

 

Regards,

Joseph Levy (InterDigital)

IEEE 802.11 AANI SC Chair