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4G LTE Essentials
The eNodeB is the sole node type within E-UTRAN and represents a dramatic departure from 3G design. In UMTS the NodeB was a comparatively simple radio transmitter that forwarded everything to a centralized Radio Network Controller for processing. The eNodeB absorbs all of those controller functions directly, performing radio resource management, dynamic scheduling, uplink and downlink power control, inter-cell interference coordination, and header compression right at the cell site. This distributed intelligence is why LTE achieves lower latency and faster handover execution than any previous…
Try these first, even if you're not sure. Guessing primes your brain.
Radio conditions shift every millisecond. Where should the scheduling decision live?
Two adjacent towers hand a user over. Which path usually finishes faster?
A shared signaling link carries messages for many users simultaneously. What design risk matters most?
Answer all 3to continue — it's OK to be wrong.