Ok, my original mindset was focused on using parabolic dishes such as what we use now - this is apparently not the case. LEOs would use antennas with a more omnidirectional pattern, since antenna gain is not vital. Regarding the handoff protocols: I understand that would be similar to handoffs used with mobile phone towers, but in reverse. You would be stationary and the satellites would be moving. Now, the only question I have is how large a constellation you have... possibly three orbits (East Coast, Central, and West Coast) with 3 birds each? Unsure how many satellites you can actually put in an elliptical orbit (they call it elliptical, but it's actually a figure-8) before they crash into each other on the cross-over portion.
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