Howtosignalprocessing
- What is a PRB in 5G?
- What is FFT size in 5G?
- What is the maximum number of subcarriers allowed in 5G NR?
- What is frame structure in 5G?
What is a PRB in 5G?
A resource block (a.k.a physical resource block – PRB) is a block of N RBsc = 12 subcarriers over which the transmissions are scheduled. 5G NR physical layer uses time-frequency resource (physical resource block) for transmission.
What is FFT size in 5G?
bandwidth of 400 MHz for an FFT value of 4096, where the number of used active. subcarriers is 3276. Although 3276 is the maximum currently achieved number, the. largest possible value is 3300 subcarriers.[4] 2.3 Waveform.
What is the maximum number of subcarriers allowed in 5G NR?
5G NR can choose subcarrier spacing from 15kHz to 240kHz, with a maximum 3300 subcarriers in simultaneous use on one channel. However, channels can be no more than 400MHz wide. The standard is frequency agnostic, meaning any subcarrier configuration can be used on any band.
What is frame structure in 5G?
5G NR retains the concept of 10 millisecond frame divided into 10 one-millisecond subframes. There is also a concept of slot, but its definition is different from a slot in LTE. One slot is defined as 14 OFDM symbols, which corresponds to once a frame or one millisecond in LTE.
