Is LTE supports both FDD and TDD?

Yes, LTE designed to Support both paired and unpaired spectrum i.e. FDD and TDD mode.

Q What type of modulation scheme and multiple access is used in LTE?

Multiple modulation scheme used in LTE both in downlink and uplink direction.

Downlink – QPSK, 16QAM and 64QAM

Uplink – QPSK, 16QAM and 64QAM (Based on UE support)

OFDMA (Orthogonal frequency division multiple access) is used in LTE in downlink direction and SC-FDMA (Single carrier frequency division multiple access) is used in uplink direction.

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