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4G LTE Essentials
Try these first, even if you're not sure. Guessing primes your brain.
A tower has wall power; a phone has a battery. Should both use the same radio scheme?
Echoes off buildings arrive slightly late. How do you keep them out of the next symbol?
A wide channel fades differently at different frequencies. How do you equalise it simply?
Answer all 3to continue — it's OK to be wrong.