AAU/RRU

AAU/RRU

Application Overview

High-power GaN/GaAs transistor packaging: Provides excellent heat dissipation, high-frequency stability, and low parasitic parameters to ensure signal amplification efficiency and linearity.

RRU (Remote Radio Unit):

Function:

Converts digital signals from the Baseband Unit (BBU) to radio frequency (RF) signals and vice versa.

Location:

Typically installed close to the antenna to minimize signal loss due to longer RF cables.

Used in:

Primarily used in 4G and earlier generations, but also a component of the 5G architecture. 

 

AAU (Active Antenna Unit):

Function: Integrates the functions of the RRU and the antenna into a single unit. 

Key Feature: Supports 5G features like Massive MIMO (Multiple Input Multiple Output) and beamforming. 

Benefits:

  • Improved Coverage: Massive MIMO and beamforming technologies allow for more focused and directed signals, improving coverage and reducing interference.
  • Increased Capacity: Massive MIMO enables the use of more antennas, increasing the number of data streams and boosting network capacity. 
  • Simplified Deployment: Integrating the antenna and radio unit simplifies installation and reduces the physical footprint of the base station. 

Used in: 5G and beyond. 

 

In essence:

The RRU is a legacy component that converts signals for transmission and reception. 

The AAU is a more advanced unit in 5G that combines the RRU and antenna, enhancing performance through technologies like Massive MIMO and beamforming.