What modulation does 4G use?

The digital modulation techniques used by 4G LTE networks are Quadrature Amplitude Modulation (QAM) and Quadrature Phase Shift Keying (QPSK) . Higher QAM modulation order, larger bandwidths and superior antenna techniques (MIMO) allow LTE to offer higher data rates. LTE Advanced networks use 256 QAM.

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