Due to its flexibility and improvements to spectrum utilization, time division duplex (TDD) is vital to the successful operation of 5G cellular communications networks. TDD implementation requires superior synchronization and precise timing at the transmitter and receiver to avoid latency and timing overlap. Occurring within mobile devices as well as base stations, the location of components responsible for transmit/receive switching is dependent on the application and network infrastructure, and each operates at a rapid pace, typically down to the microsecond or nanosecond time range.