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Orthogonal Frequency Division Multiplexing (OFDM), Subcarriers, Resource Blocks and more in 4G and 5G
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In 5G NR and 4G LTE, the individual signals that are multiplexed using OFDM are called subcarriers. Bandwidth RBs Subcarriers 1.4 MHz 6 72 3 MHz 15 180 5 MHz 25 375 10 MHz 50 600 15 MHz 75 975 20 MHz 100 1200 Encoding Method Bits per symbol QPSK (4 QAM) 2 bits per symbol 16 QAM 4 bits per symbol 64 QAM 6 bits per symbol 256 QAM 8 bits per symbol