How many subcarriers are there?

As shown in Figure 1, a 20 MHz 802.11n/ac channel consists of 64 subcarriers. Fifty-two of the subcarriers are used to carry modulated data; four of the subcarriers function as pilot carriers; and eight of the subcarriers serve as guard bands. OFDM are sometimes also referred to as OFDM tones.

How many subcarriers are in a resource block LTE?

12 subcarriers
In frequency, resource blocks are either 12 x 15 kHz subcarriers or 24 x 7.5 kHz subcarriers wide The number of subcarriers used per resource block for most channels and signals is 12 subcarriers….Terminology.

How many subcarriers are used in a LTE signal?

The OFDM signal used in LTE comprises a maximum of 2048 different subcarriers with a spacing of 15 kHz. Resource blocks include 12 subcarriers, regardless of the total LTE signal bandwidth. They also cover a slot in the time frame.

Why is LTE the next generation mobile network?

• LTE focus: – Enhancement of the UTRA – Optimisation of the UTRAN architecture – To ensure the continued competitiveness of the 3GPP technologies for the future • LTE was the first and only technology recognized by the Next Generation Mobile Network alliance to meet its broad requirements • Target deployment in 2010 10 • Reduced cost per bit

How to calculate peak capacity in LTE mode?

Note that the uplink would have lower throughput because the modulation scheme for most device classes is 16QAM in SISO mode only. There is another technique to calculate the peak capacity which I include here as well for a 2×20 MHz LTE system with 4×4 MIMO configuration and 64QAM code rate 1:

What are the MIMO transmission schemes in LTE?

› MIMO transmission schemes in LTE – Code-words, layers, and streams – Tx diversity – Downlink SU-MIMO › Closed loop, pre-coded spatial multiplexing › Open loop, large delay cyclic delay diversity – Downlink MU-MIMO – MIMO related feedback and downlink control signaling › CSI (RI, PMI, CQI) – Uplink MIMO