Skip to main content


Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.

Time Division Duplexing (TDD)

Time Division Duplexing (TDD) is a technique to emulate full-duplex communication over a half-duplex communication link by transmitting the downlink (DL) and receiving the uplink (UL) at the same frequency but using synchronized time intervals. The UL and DL are separated by a guard period to avoid overlapping of the communication channels. Due to advanced technology, the switching is done within milliseconds and therefore fast enough for low latency 5G scenarios. The advantage of this technique is that it excels in spectral efficiency and can deliver improved latency results.