How does a remote radio unit work?

A Remote Radio Unit (RRU), commonly referred to as a Remote Radio Head (RRH), is a transceiver that you&#;ll find on wireless base stations. These transceivers connect wireless devices with wireless networks, making it possible to send and receive text messages, among other things.

Click here to get more.

RRUs are one of two primary units of a wireless base station. The RRU is the RF processing unit; it transmits and receives signals. You&#;ll typically find the RRU at the top of a base station, mounted near the antenna. RRUs can receive, transmit, filter and amplify RF signals.

The graphic below from Tech Target illustrates where RRUs fit in wireless communications. Every time you send a text, your sends a digital signal to a nearby cell tower, or base station. When that cell tower receives the signal, the RRU is responsible for converting it into an RF signal and transmitting it to the cell tower&#;s BBU. Optical fiber connects the RRU to the BBU. The BBU is then able to send the signal to a cell tower near the person you texted.

As you can see, there&#;s a lot going on behind the scenes of every text message you send and receive! And this is just the tip of the iceberg.

Radiall Products for RRU

Radiall designs interconnect components that support RRU applications and increase performance. Here are just a few of our products for Remote Radio Units.

The R2CT® connection system is a flexible outdoor solution that meets the needs of telecommunication OEMs and operators for Fiber-To-The-Antenna (FTTA) applications. R2CT® provides a simple, cost-effective, waterproof and sealed connection for Remote Radio Head (RRH) and Unit (RRU) equipment.

OCTIS&#; is the perfect solution for outdoor small cell and next generation RRU/RRH projects that support broadband Ethernet and outdoor microwave network units. It offers reliable performance in harsh environments.

RXF and SMP-MAX connectors can also be used in RRU applications. RXF is an optical, ruggedized connector that provides secure and sealed connections. SMP-MAX is a snap-on connector used in wireless telecommunications.

Would you like to speak with a Radiall expert about our custom solutions for telecom applications? Our team is here to help you find the best solution for your application. Book a virtual meeting today.

Read about more telecom topics.

If you want to learn more, please visit our website HUAXUN.

A Remote Radio Unit (RRU), also known as a Remote Radio Head (RRH) is a transceiver deployed on base stations. A transceiver combines the functionality of both a transmitter and receiver in one unit. Due to its features, RRU is used as a transceiver in telecommunications.

Image: RRU

Definition of Radio Remote Unit (RRU)

An RRU is a device that connects wireless devices with wireless networks to ensure the transmission and reception of data, including text messages, and various other forms of communication. In other words, it establishes a connection between an operator network with mobile devices, cell phones, or other users&#; equipment (UE).

The RRU is typically located close to the antenna, commonly on top of the base station. RRUs can amplify, filter, and receive and transmit RF signals.

Image: RRU on a tower

Additionally, the RRU unit establishes a connection to the base station through a bidirectional fiber optic link. A common public radio interface (CPRI) is this optical interface link. CPRI is an interface protocol developed by telecommunications equipment manufacturers, including Huawei, Cisco, Nokia, and many more.

Note that the RRU helps to reduce losses in coaxial feed lines. This helps to improve the efficiency of the system and delivers a significant degree of flexibility in the construction of cellular sites. This makes it easier to upgrade to new equipment and devices.

Functions of RRU

The RRU in a BTS performs some key functions which may include the following:

1. Facilitates the transmission and reception of user signals to and from the base station.
2. Offers seamless support and connectivity for user equipment, including functions such as power management and signal delay.
3. Controls and processes electromagnetic signals received from the through via a hollow guide known as a Jumper.
4. Serves as an interface between two different physical links, such as optical and electromagnetic connections.
5. Manages and controls auxiliary equipment, such as the Remote-Control Unit (RCU), for tasks like remote electrical tilt adjustment (commonly referred to as RET).
6. Generates and transmits various signals, including but not limited to VSWR, RET, and ACT, among others.