Re: [6gip] Wi-Fi 6E

[Simon Leinen <[e-mail]>]

Alexandre Petrescu writes:
>> In the US (since July 2020 I think):
>> 5.925 GHz to 7.125 GHz
>> In the EU (should be ratified this month(?) and passed into member
>> state law over the subsequent six months):
>> 5.925 GHz to 6.425 GHz

> 5.925MHz?

> Wouldn't that would overstep the ITS spectrum which was recently
> extended up to 5.935MHz as per
>> Commission Implementing Decision (EU) 2020/1426 of 7 October 2020 on
>> the harmonised use of radio spectrum in the 5 875-5 935 MHz
>> frequency band for safety-related applications of intelligent
>> transport systems (ITS) and repealing Decision 2008/671/EC (notified
>> under document C(2020) 6773) (Text with EEA relevance)

> https://eur-lex.europa.eu/legal-content/EN/TXT/?qid=1602230223168&uri=CELEX:32020D1426

Interesting, I was unaware of this ITS assignment.

The diagrams in Chuck Lukaszewski's presentation show that both the US
and the EU versions of the Wi-Fi 6E ranges start with 20MHz of "guard
band", so this assignemnt should be safe; and the frequencies actually
usable for Wi-Fi 6E communications only start at 5.945 GHz.  Sorry for
the confusion.
-- 
Simon.

> ITS spectrum is for a WiFi used in OCB mode which stands for Outside the
> Context of a BSSID; this means, for example, in that WiFi there is no
> Association Req or Resp messages.  It was typically done in the
> 5.875-5.925MHz range, but now up to 5.935MHz.

> Of maybe WiFi 6E wants to cover ITS as well.

> Alex


>> ...so, at least initially, only half the amount of spectrum (the
>> "lower half").  Maybe more later, who knows.
>> Sorry for the US/EU-centricism.  I'm not quite sure what's happening
>> in other countries, except that the Ofcom in the UK already stated
>> their support for Wi-Fi 6E, also in the "lower half" range.  "Ask
>> your local regulator", or look for information on the Internet.
>> There's an excellent video explaining Wi-Fi 6E here, including
>> spectrum regulation status, again in particular in the US and
>> (EU/CEPT) Europe, and some technical differences between Wi-Fi 6 and
>> 6E beyond the additional spectrum:
>> https://www.youtube.com/watch?v=_fHrKaEB_fk
>> (Kudos to Anders Nilsson from SUNET for pointing me to it.)
>>