Both FDD and TDD are two spectrum usage techniques used in mobile communication networks such as Mobile WiMax, LTE, 5G etc. In FDD mode, both uplink and downlink can transmit at the same time at different spectrum frequencies. … 5G TDD. Feature5G FDD5G TDDInterference with neighboring Base StationsLessMoredifference between FDD and TDD in 5G – RF Wireless World www.rfwireless-world.com › Terminology › 5G-FDD-vs-5G-TDD