5g cyclic prefix

1. What is 5G cyclic prefix?
2. What is a cyclic prefix OFDM?
3. What is OFDM symbol in 5G?
4. What is normal cyclic prefix in LTE?

What is 5G cyclic prefix?

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.

What is a cyclic prefix OFDM?

3.2 Cyclic prefix for OFDM. A cyclic prefix is created to prevent intersymbol interference (ISI) when an OFDM signal is transmitted in a dispersive channel. As shown in Figure 13.5, the cyclic prefix (CP) is essentially an identical copy of the last portion of the OFDM symbol appended before the OFDM symbol.

What is OFDM symbol in 5G?

In OFDM, useful symbol time Tu and subcarrier spacing Δf are related by the equation: Tu = 1/Δf. Because 5G NR defines five Δf values (15, 30, 60, 120 and 240 kHz) in Phase 1, OFDM useful symbol times Tu's will be halved when Δf value is doubled.

What is normal cyclic prefix in LTE?

LTE uses two types of CP, normal CP of 4.7 microseconds and Extended CP of 16.7 microseconds.