Re: "Safe" cell phone WiFi capabilities?

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Sujet : Re: "Safe" cell phone WiFi capabilities?
De : blockedofcourse (at) *nospam* foo.invalid (Don Y)
Groupes : sci.electronics.design
Date : 20. May 2024, 12:23:14
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v2fbr4$3usaf$2@dont-email.me>
References : 1 2 3 4
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On 5/20/2024 4:02 AM, Dan Purgert wrote:
On 2024-05-17, Don Y wrote:
On 5/17/2024 5:55 AM, Dan Purgert wrote:
On 2024-05-17, Don Y wrote:
For "nominal" cell phones (i.e., taking into consideration
that not ever subscriber buys The Latest and Greatest),
what's the "base" WiFi capability one would feel comfortable
assuming?  ac?  ax?
>
Assuming you're limiting the question to the set of cellphones that
actually implement wifi, 802.11b ... but what are you *REALLY* trying to
ask for?
>
There are several different "generations" of WiFi, each with
different effective (data) bandwidths.
>
The most commonly referenced include:  802.11a, 802.11b, 802.11g,
802.11n, 802.11ac, 802.11ax and, most recently, 802.11be.  The
 It's almost like that list is ... all of the options.
 
[Note that n is a ~2008 era technology while ac is ~2015
and ax is ~2020.  Does this suggest that any phone made
"within the last 5 years" -- an interval Martin suggests
should cover "most" phones now in use -- should be "ax"?]
 No. /FLAGSHIP/ models certainly have a high chance of supporting
802.11ax, but that doesn't mean "any" phone.
 Again, what are you *REALLY* trying to ascertain here?
I am trying to figure out what the "basic" WiFi capabilities
of "the vast majority" of cell phones currently in use are
likely to be.
Martin suggests phones have a useful life of 5 years.
If so, the majority of phones currently in use were
likely designed long after 802.11a/b (1999), g (2003),
n (2008), ac (2014) and even ax (2019).
If a phone does NOT support WiFi (perhaps some of the
"closed" markets?), then it has no impact on the data.

The most basic support is still 802.11b; and that'll probably be kind of
"forever" (at least until 2.4 GHz is completely abandoned), same as how
10mbit is still the most basic ethernet-over-twisted-pair support.
But, in practice, most phones support something more capable
than 802.11b -- just like most enets support something more
capable than 10BaseT/2.
Designing for the lowest POSSIBLE vs. LIKELY means unnecessarily
limiting the capabilities that you can exploit.
[would you design an enet device that ONLY expected to be capable
of accessing 10mb bandwidth]

Date Sujet#  Auteur
17 May 24 * "Safe" cell phone WiFi capabilities?20Don Y
17 May 24 +* Re: "Safe" cell phone WiFi capabilities?3Martin Brown
17 May 24 i`* Re: "Safe" cell phone WiFi capabilities?2Don Y
17 May 24 i `- Re: "Safe" cell phone WiFi capabilities?1Bill Sloman
17 May 24 `* Re: "Safe" cell phone WiFi capabilities?16Dan Purgert
17 May 24  `* Re: "Safe" cell phone WiFi capabilities?15Don Y
20 May 24   `* Re: "Safe" cell phone WiFi capabilities?14Dan Purgert
20 May 24    `* Re: "Safe" cell phone WiFi capabilities?13Don Y
20 May 24     `* Re: "Safe" cell phone WiFi capabilities?12Dan Purgert
20 May 24      `* Re: "Safe" cell phone WiFi capabilities?11Don Y
20 May 24       `* Re: "Safe" cell phone WiFi capabilities?10Dan Purgert
20 May 24        `* Re: "Safe" cell phone WiFi capabilities?9Don Y
21 May 24         `* Re: "Safe" cell phone WiFi capabilities?8Martin Brown
21 May 24          +* Re: "Safe" cell phone WiFi capabilities?6John R Walliker
22 May 24          i`* Re: "Safe" cell phone WiFi capabilities?5Don Y
22 May 24          i `* Re: "Safe" cell phone WiFi capabilities?4Martin Brown
22 May 24          i  `* Re: "Safe" cell phone WiFi capabilities?3Don Y
22 May 24          i   `* Re: "Safe" cell phone WiFi capabilities?2Martin Brown
23 May 24          i    `- Re: "Safe" cell phone WiFi capabilities?1Don Y
21 May 24          `- Re: "Safe" cell phone WiFi capabilities?1Don Y

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