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Re: [6gip] 6G

Alexandre Petrescu <alexandre.petrescu@gmail.com> Thu, 14 January 2021 12:41 UTC

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To: Lars Eggert <lars@eggert.org>
Cc: "Flinck, Hannu (Nokia - FI/Espoo)" <hannu.flinck@nokia-bell-labs.com>, "6gip@ietf.org" <6gip@ietf.org>, Kaippallimalil John <john.kaippallimalil@futurewei.com>
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Date: Thu, 14 Jan 2021 13:41:20 +0100
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Subject: Re: [6gip] 6G
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Le 14/01/2021 à 13:07, Lars Eggert a écrit :
> On 2021-1-14, at 13:22, Alexandre Petrescu
> <alexandre.petrescu@gmail.com> wrote:
>> Le 14/01/2021 à 09:52, Lars Eggert a écrit : [...]
>>> Unless you claim that "6G" will be a radio LAN, I don't think
>>> these assumptions are sensible.
>> 
>> I think 6G will stay separated from WiFi for a long time.
> 
> That's not the point I'm trying to make. This is not about WiFi vs
> "6G".
> 
> The point I'm trying to make is that the "1 us" requirement you posed
> implicitly means you are talking about a LAN (as in local area
> network), due to speed-of-light limits.

But at one point in time LAN is LAN and 6G is 6G.

In year 2030, when 6G does 1us (micro-second) latency, maybe LAN does 
1ns (nano-second) latency.

Of course, for LAN to do 1ns there is a need for short cables and 
multiple flows of light carrying data.

So I wonder whether it is in year 2030 that 6G will achieve 1us latency, 
or later, or before?

We know 6G cant do 1us this year 2021, because nowadays 5G talks about 
1ms latency, and WiFi about 50us latency (WiFi 6E 4.9GBit/s).

We dont know something about year 2025.  Maybe in year 2025 work on 5G+ 
will have ended?

Alex

> 
> Lars
>

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