noun
frequency division duplex; FDD
Technical term in telecommunications and computing. Refers to a duplex method where uplink and downlink use separate frequency bands.
周波数多重は、上りと下りで異なる周波数帯を使う通信方式です。
Frequency division duplex is a communication method that uses different frequency bands for uplink and downlink.
TDD (time division duplex) uses the same frequency but separates uplink and downlink in time, while FDD uses separate frequencies simultaneously.
Compound of 周波数 (frequency) and 多重 (multiplex). The term is a direct translation of the English 'frequency division duplex'.