Cyclic Prefix problem in LTE

The problem is fixed by adding a guard time between each symbol to avoid the ISI. The ISI is still present but is not disturbing for the receiver. Principle :…

Hybrid ARQ (HARQ) in LTE

Hybrid ARQ (HARQ) leads to higher efficiency in transmission and error correction. There is one HARQ entity per UE with 8 stop-and-wait processes for each HARQ entity. Both incremental redundancy…

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