Frequency Division Duplex

FDD Frequency Division Duplex

Duplexing method to enable bidirectional (Uplink and Downlink) communication between UE

• FDD uses separate Frequency Bands for uplink and Downlink transmissions (known as paired spectrum).
• Both Uplink and Downlink transmissions occur simultaneously.
• Advantages:
  • No need for guard periods: lower latency since both directions are always active.
  • Well-suited for voice and symmetric data traffic.
  • May behave better in high-mobility scenarios.
• Common in traditional cellular systems like GSM, WCDMA, and some LTE/5G deployments.

Read also: TDD