Not commenting on error correction, but your speculation about multipath reveals that you fundamentally fail to understand how starlink is meant to work. Starl

Not commenting on error correction, but your speculation about multipath reveals that you fundamentally fail to understand how starlink is meant to work. Starlink allows high bandwidth density on the ground, and at the satellites because every antenna in the system is an extremely capable steerable phased array. Every transceiver can fully distinguish between signals of equal power and frequency that differ whose sources differ at least 10 degrees. Reflections from buildings are irrelevant when the antenna must already be capable of picking the correct transmission out of the 50 or so equally powerful beams on the same frequency that only differ in angle. Also, since every terminal already needs to be constantly aware of the position of every satellite, the correct answer to doppler is not fancy error correction, it's modulating the transmission to eliminate it, or just expecting it at the receiver.