 For details, see the OFDM system comparison table.Using values for Transmission Mode I (TM I), the OFDM modulation consists of 1,536 subcarriers that are transmitted in parallel.The useful part of the OFDM symbol period is 1 millisecond, which results in the OFDM subcarriers each having a bandwidth of 1 kHz due to the inverse relationship between these two parameters, and the overall OFDM channel bandwidth is 1,537 kHz.