RRU ( Radio Remote Unit)

Antenna is connected to RRU and RRU is controlled by CDU which is placed inside the shelter. The connection between RRU and CDU is optical which is know as CPRI in Jio project.

Separate RRU's are used for each band and each sector, which means 3 RRU (1 for 850Mhz, 1 for 1.8Ghz, 1 for 2.3Ghz) for one sector.