[Starlink] SpaceX/Starlink says it's ready for a fall satellite-to-cell service with T-Mobile

[Alexandre Petrescu]

does it say whether it is text only, data only, or everything including 
voice?

Le 04/06/2024 à 13:20, Frantisek Borsik via Starlink a écrit :
> Some additional reading from William Webb:
>
> https://www.linkedin.com/pulse/satellite-direct-device-workable-william-webb-sonke/?trackingId=Sjha4DY8SqONFA9g%2Bb5b%2Bw%3D%3D
>
> All the best,
>
> Frank
>
> Frantisek (Frank) Borsik
>
> https://www.linkedin.com/in/frantisekborsik
>
> Signal, Telegram, WhatsApp: +421919416714
>
> iMessage, mobile: +420775230885
>
> Skype: casioa5302ca
>
> frantisek.borsik at gmail.com
>
>
>
> On Tue, Jun 4, 2024 at 2:54 AM David Lang <david at lang.hm> wrote:
>
>     Eugene Y Chang wrote:
>
>     >> On Jun 3, 2024, at 12:41 PM, David Lang <david at lang.hm> wrote:
>     >>
>     >> Eugene Y Chang wrote:
>     >>
>     >>> I expect low data rate because the distance will fall back to
>     a lower coding rate.
>     >>
>     >> I think it's going to be more a matter of very large cells, so
>     many people sharing the available bandwidth
>     >>
>     >>> I observe a difference in my phone’s batter life between urban
>     and rural usage. I expect the battery life to be significantly
>     reduced with Starlink.
>     >>> And yes… if the phone isn’t communicating then the battery
>     life isn’t drawn down much…
>     >>
>     >> In my experience, a phone that's trying to find a tower uses
>     more power than one that has a tower, but is otherwise idle
>     >
>     > When the phone is searching for a tower, it is transmitting at
>     maximum power.
>     > Then, the phone adjusts the transmit power according to the
>     distance to the tower,
>     > In an urban environment, the distance to the tower is usually
>     less (i.e. smaller cells due to subscriber density).
>     > In a rural environment, there is more distance to the tower, and
>     the phone is transmitting at higher power (i.e., towers are
>     farther apart for larger cells due to fewer subscribers per tower,
>     up to the max tower separation.)
>     > When you are mobile, the power is proportionate to the mean
>     distance to the tower during your operations.
>
>     and for direct-to-satellite, it's going to be a max power
>     situation, similar to
>     rural.
>
>     But when a phone is not connected, how frequent are it's searches
>     for towers
>     (especially if it has multiple bands to check) compared to the
>     'keepalive' pings
>     when it is connected? if it's doing more transmissions for it's
>     search and
>     attempts to connect than it does while connected and just
>     confirming the
>     connection, that could eat more power.
>
>     David Lang
>
>
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