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A comment on Starlink Direct to Cell. Parent comment

Re:Starlink Direct to Cell by lxgr on Wednesday October 11, 2023 @09:55PM (#37852619)
The shift is actually not that extreme in LEO (a few KHz at most).

And couldn’t the satellites mostly adjust for that, given that the relative doppler shift should be pretty constant between mobiles in the same spot beam?

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Re:Starlink Direct to Cell by sidewndr46 on Thursday October 12, 2023 @09:23AM (#37856806)
LTE can't even handle a high speed train. 1 kHz causes significant degradation

https://eudl.eu/pdf/10.1007/978-3-319-66628-0_41

doppler shift is not a constant for a stationary observer from Earth.

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Re:Starlink Direct to Cell by lxgr on Thursday October 12, 2023 @01:32PM (#37860239)
Obviously it's not constant, but if it's uniform (enough) within the footprint of a single spot beam, the satellites can adjust for the global component both in their transmitter and receiver, and the mobile devices only have to compensate for (or tolerate) their local difference from that.
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