Reliance Jio- Radio Remote Unit (RRU)

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.

1.8Ghz RRU

2.3Ghz RRU

850Mhz RRU

LTE System overview for Reliance Jio Installation Project

Below is the detailed description of the equipments used in Reliance Jio project for Installation

In Reliance jio Installation project, the LTE system consist of Digital Unit known as CDU which is connected to backhaul switch, Radio Remote Unit (RRU) and GPS antenna by particular cables.

RF antenna is connected to RRU by RF jumper cables.

Basic Connectivity:

1. The CDU is installed in the rack inside the outdoor unit.
2. The CDU is connected to Backhaul switch through Optic Cable
3. GPS antenna installed on the tower will be connected to CDU through GPS arrestor with gps cable.
4. RRU is connected to CDU through optic cable known as CPRI.
5. CDU,GPS arrestor and RRU has to be grounded to Grounding bar.
6. RF antenna is connected to RRU y RF jumper cable.
7. RF antenna will have 4 ports so 4 jumpers will be used.
8. There is one port in RF antenna to give electrical tilt and is connected to RRU by RET cable.

Overview of CDU

Overview of RRU

Overview of GPS antenna and Arrestor

The GPS antenna will be installed on the tower, the gps arrestor will be 1m from the CDU.

Please note that the  above equipment are used only for Reliance Jio Installation & commissioning of 2g,3g &4g. No other service providers uses the same equipment.