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Cyclic Prefix problem in LTE

Cyclic Prefix problem in LTE The cyclic prefix (CP) in LTE is a guard interval inserted in the time domain between successive symbols or OFDM (Orthogonal Frequency Division Multiplexing) symbols. Its purpose is to mitigate the effects of multipath fading and inter-symbol interference by providing a guard time that allows the signals to settle before … Read more

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 and chase combining are supported. The number of HARQ retransmissions targeted by the HARQ protocol depends on the network configuration. The BLER seen by RLC … Read more