What is FFR (Fractional Frequency Reuse)?

Fractional Frequency Reuse (FFR) permits the utilization of various frequency reuse factors over various frequency partitions in certain time intervals in downlink and uplink transmissions. It is an interference mitigation method. Fractional frequency reuse (FFR) is an interference coordination technique appropriate to OFDMA based wireless networks. In this technique, cells are partitioned into spatial areas with various recurrence reuse factors.