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[72.253.192.210]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f63235a344sm69549495ad.84.2024.06.03.14.57.18 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Jun 2024 14:57:18 -0700 (PDT) From: Eugene Y Chang Message-Id: <32AD770E-336E-4CF4-8B1B-8AE7353981CC@ieee.org> Content-Type: multipart/signed; boundary="Apple-Mail=_E00CA13C-71F8-4F01-A0F1-90D0EA1F5B74"; protocol="application/pgp-signature"; micalg=pgp-sha256 Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.8\)) Date: Mon, 3 Jun 2024 11:57:16 -1000 In-Reply-To: Cc: Eugene Y Chang , Frantisek Borsik , Dave Taht via Starlink To: David Lang References: X-Mailer: Apple Mail (2.3696.120.41.1.8) Subject: Re: [Starlink] SpaceX/Starlink says it's ready for a fall satellite-to-cell service with T-Mobile X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Jun 2024 21:57:21 -0000 --Apple-Mail=_E00CA13C-71F8-4F01-A0F1-90D0EA1F5B74 Content-Type: multipart/alternative; boundary="Apple-Mail=_193F3B4B-2F79-4875-A43B-CE1E12830B70" --Apple-Mail=_193F3B4B-2F79-4875-A43B-CE1E12830B70 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 I expect low data rate because the distance will fall back to a lower = coding rate. I observe a difference in my phone=E2=80=99s batter life between urban = and rural usage. I expect the battery life to be significantly reduced = with Starlink. And yes=E2=80=A6 if the phone isn=E2=80=99t communicating then the = battery life isn=E2=80=99t drawn down much=E2=80=A6 But users with high screen times will have to change their habits. =E2=80=94 avoid receiving text messages (not under the user=E2=80=99s = control) =E2=80=94 don=E2=80=99t receive email pushes =E2=80=94 stop all the social media updates, messages, and likes. =E2=80=94 turn off the apps =E2=80=94 only use the phone for emergencies. Who are the intended users? Gene ---------------------------------------------- Eugene Chang IEEE Life Senior Member IEEE Communications Society, Computer Society, & Signal Processing = Society, Hawaii Chapter Chair IEEE Life Member Affinity Group Hawaii Chair IEEE Entrepreneurship, Mentor eugene.chang@ieee.org m 781-799-0233 (in Honolulu) > On Jun 3, 2024, at 11:16 AM, David Lang wrote: >=20 > This is a fallback that will only be if there is no other coverage, = and will be a poor data rate. >=20 > I would expect that the impact to the phone battery would be less than = the phone continually searching for a tower >=20 > Also, SpaceX has pushed back, according to them this isn't observed = interference with their signals, instead they reconfigured a satellite = to the direct-to-phone frequencies and were able to detect them >=20 > we'll see what the real story is. >=20 > On Mon, 3 Jun 2024, Eugene Y Chang via Starlink wrote: >=20 >> Date: Mon, 3 Jun 2024 10:47:32 -1000 >> From: Eugene Y Chang via Starlink > >> Reply-To: Eugene Y Chang > >> To: Frantisek Borsik > >> Cc: Dave Taht via Starlink > >> Subject: Re: [Starlink] SpaceX/Starlink says it's ready for a fall >> satellite-to-cell service with T-Mobile >> I found this line in the article very interesting: The larger 2nd = generation SpaceX satellites can connect to the majority of T-Mobile=E2=80= =99s 4G and 5G phones over its 1900 MHz spectrum. >>=20 >> It is exciting a subscriber does not need to buy a new phone. >> What is the expected impact to the phone=E2=80=99s battery life? >> Any speculations? >>=20 >> Gene >> ---------------------------------------------- >> Eugene Chang >> eugene.chang@ieee.org >> o 781-799-0233 >>=20 >>=20 >>=20 >>=20 >>> On Jun 3, 2024, at 8:08 AM, Frantisek Borsik via Starlink = wrote: >>>=20 >>> SpaceX & T-Mobile intend to launch direct-to-device (D2D) satellite = servicethis fall >>> An analyst told us that will give them an 18- to 24-month lead over = some rivals >>> AT&T & Verizon are still backing AST SpaceMobile as an alternative >>>=20 >>> = https://www.fierce-network.com/wireless/space-x-says-its-ready-fall-direct= -satellite-cell-service-t-mobile = > >>>=20 >>> All the best, >>>=20 >>> Frank >>>=20 >>> Frantisek (Frank) Borsik >>>=20 >>>=20 >>>=20 >>> https://www.linkedin.com/in/frantisekborsik = = > >>> Signal, Telegram, WhatsApp: +421919416714 >>>=20 >>> iMessage, mobile: +420775230885 >>>=20 >>> Skype: casioa5302ca >>>=20 >>> frantisek.borsik@gmail.com = >______________________________________= _________ >>> Starlink mailing list >>> Starlink@lists.bufferbloat.net = >>> https://lists.bufferbloat.net/listinfo/starlink = >>=20 > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink = --Apple-Mail=_193F3B4B-2F79-4875-A43B-CE1E12830B70 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 I = expect low data rate because the distance will fall back to a lower = coding rate.

I = observe a difference in my phone=E2=80=99s batter life between urban and = rural usage. I expect the battery life to be significantly reduced with = Starlink.
And yes=E2=80=A6 if the phone isn=E2=80=99t= communicating then the battery life isn=E2=80=99t drawn down = much=E2=80=A6
But users with high screen times will = have to change their habits.
=E2=80=94 avoid = receiving text messages (not under the user=E2=80=99s control)
=E2=80=94 don=E2=80=99t receive email pushes
=E2=80=94 stop all the social media updates, messages, and = likes.
=E2=80=94 turn off the apps
=E2=80=94 only use the phone for emergencies.

Who are the intended = users?

Gene
----------------------------------------------
Eugene Chang
IEEE Life Senior Member
IEEE = Communications Society, Computer Society, & Signal Processing = Society,    
    Hawaii Chapter = Chair
IEEE Life Member Affinity Group Hawaii = Chair
IEEE Entrepreneurship, Mentor
eugene.chang@ieee.org
m 781-799-0233 (in = Honolulu)



On Jun 3, 2024, at 11:16 AM, David Lang <david@lang.hm> = wrote:

This is a fallback that will only be if there is no other = coverage, and will be a poor data rate.

I would expect that the impact to the phone battery would be = less than the phone continually searching for a tower

Also, SpaceX = has pushed back, according to them this isn't observed interference with = their signals, instead they reconfigured a satellite to the = direct-to-phone frequencies and were able to detect them

we'll see = what the real story is.

On Mon, 3 Jun 2024, Eugene Y Chang via Starlink = wrote:

Date: = Mon, 3 Jun 2024 10:47:32 -1000
From: Eugene Y Chang via = Starlink <starlink@lists.bufferbloat.net>
Reply-To: = Eugene Y Chang <eugene.chang@ieee.org>
To: Frantisek = Borsik <frantisek.borsik@gmail.com>
Cc: Dave = Taht via Starlink <starlink@lists.bufferbloat.net>
Subject: = Re: [Starlink] SpaceX/Starlink says it's ready for a fall
   satellite-to-cell service with T-Mobile
I found this line in the article very interesting: The larger = 2nd generation SpaceX satellites can connect to the majority of = T-Mobile=E2=80=99s 4G and 5G phones over its 1900 MHz spectrum.

It is exciting a subscriber does not need to = buy a new phone.
What is the expected impact to the = phone=E2=80=99s battery life?
Any speculations?

Gene
----------------------------------------------
Eugene Chang
eugene.chang@ieee.org
o 781-799-0233




On Jun 3, 2024, at 8:08 = AM, Frantisek Borsik via Starlink <starlink@lists.bufferbloat.net> = wrote:

SpaceX & T-Mobile intend to = launch direct-to-device (D2D) satellite servicethis fall
An = analyst told us that will give them an 18- to 24-month lead over some = rivals
AT&T & Verizon are still backing AST = SpaceMobile as an alternative

https://www.fierce-network.com/wireless/space-x-says-its-ready-= fall-direct-satellite-cell-service-t-mobile<https://www.fierce-network.com/wireless/space-x-says-its-ready-= fall-direct-satellite-cell-service-t-mobile>

All the best,

Frank

Frantisek (Frank) Borsik



https://www.linkedin.com/in/frantisekborsik <https://www.linkedin.com/in/frantisekborsik>
Signal, Telegram, WhatsApp: +421919416714

iMessage, mobile: +420775230885

Skype: casioa5302ca

frantisek.borsik@gmail.com <mailto:frantisek.borsik@gmail.com>______________________= _________________________
Starlink mailing list
Starlink@lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/starlink

_______________________________________________
Starlink = mailing list
Starlink@lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/starlink

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