Howtosignalprocessing
- What is difference between normal and extended cyclic prefix?
- What is normal and extended cyclic prefix in LTE?
- Why we use extended cyclic prefix in OFDM?
- What is extended CP?
What is difference between normal and extended cyclic prefix?
The normal CP length is designed to support propagation conditions with a delay spread up to 4.7 μs, while the extended CP is intended to support deployments where the delay spread is up to 16.7 μs.
What is normal and extended cyclic prefix in LTE?
LTE uses two types of CP, normal CP of 4.7 microseconds and Extended CP of 16.7 microseconds.
Why we use extended cyclic prefix in OFDM?
Cyclic prefix is inserted to avoid intersymbol interference due to the multipath channel. In practice, CP-OFDM modulator is implemented via the computationally efficient fast Fourier transform (FFT).
What is extended CP?
Me: Extended CP (Cyclic Prefix), ECP, refers to the usage of longer guard period between symbols than normal CP (NCP). The NCP is specified for all SCS whereas the ECP is currently only specified for the 60 kHz SCS.
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