Cyclic prefix length in lte

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

1. What is length of cyclic prefix?
2. What is cyclic prefix LTE?
3. What is normal cyclic prefix?
4. What is cyclic prefix and extended cyclic prefix in LTE?

What is length of cyclic prefix?

In LTE, the normal CP duration is 7% of the core OFDM symbol (i.e., samples and samples). Figure 5.6. Cyclic prefix is inserted to avoid intersymbol interference due to the multipath channel.

What is cyclic prefix LTE?

The cyclic prefix acts as a buffer region or guard interval to protect the OFDM signals from inter symbol interference. We have learned that we minimize the ISI a lot when we make the size of the symbol larger (the size of the delay spread becomes relatively minor compared to the larger size).

What is normal cyclic prefix?

Δf, step between subcarriers; l, number of the symbol in the time slot. The normal cyclic prefix is used in case the delay between the different reflected signals is low, which is the case in cells of small diameter (microcell, pico-cell, femto-cell).

What is cyclic prefix and extended cyclic prefix in LTE?

For now, just know that we use the Normal CP Setting we have 7 symbols, or 4.7 micro seconds. Extended CP : with a duration of 16.67 microseconds. Used in the second case. Equivalent to 6 symbols per slot (or 16.7 microseconds).