The RE is the smallest physical channel unit, each uniquely identifiable by its subcarrier index k and symbol index l within the PRB. A PRB spans 12 subcarriers over 7 OFDM symbols and in total 12 × 7 = 84 REs .
The RE is the smallest physical channel unit, each uniquely identifiable by its subcarrier index k and symbol index l within the PRB. A PRB spans 12 subcarriers over 7 OFDM symbols and in total 12 × 7 = 84 REs .