Key Insights About Radio Remote Unit (RRU):
The Radio Remote Unit (RRU) is a critical component in modern cellular networks. It connects the operator's network to User Equipment (UE) like mobile phones, enabling seamless communication. Here's a breakdown of its role and significance:
Why "Distributed and Integrated"?
Traditionally, cellular systems used standalone Base Stations (BTS) installed indoors. Today, the architecture is distributed, with BBUs (Baseband Units) and RRUs installed closer to antennas, such as on towers.
Key Functions of RRU:
Acts as a Transceiver: Transmits and receives signals between the user and base station.
Connectivity Support: Manages power, delay, and other parameters for seamless UE connectivity.
Signal Processing: Processes electromagnetic (EM) signals received from antennas.
Physical Link Interface: Bridges optical (fiber) and EM (radio) links.
Auxiliary Equipment Control: Supports devices like RCUs for Remote Electrical Tilt (RET).
Signal Generation: Generates VSWR, RET, and ACT signals for monitoring and control.
Hardware Overview:
CPRI Port:
Typically two ports (CPRI0, CPRI1) for connecting to the BBU.
Uses a bidirectional Fiber optic link (Common Public Radio Interface protocol).
RF Port:
Connects to antennas via jumper cables.
Includes dedicated Tx (transmit) and Tx/Rx (transmit/receive) ports.
RET Port:
Connects to the Remote Control Unit (RCU) via RET cables.
Often uses a DB9 connector (e.g., Huawei models).
Power Supply Port:
Operates at -48V.
Typically uses blue (-) and black (0) connectors.
Ground Port:
Provides surge and voltage protection using copper ground cables connected to a nearby bus bar.
Advantages of RRU Deployment:
Reduces coaxial cable losses.
Increases system efficiency.
Simplifies site construction and upgrades.
By integrating RRUs, cellular networks achieve better performance, scalability, and adaptability to new technologies
For more information, please visit HUAXUN.
Key Insights About Radio Remote Unit (RRU):
The Radio Remote Unit (RRU) is a critical component in modern cellular networks. It connects the operator's network to User Equipment (UE) like mobile phones, enabling seamless communication. Here's a breakdown of its role and significance:
Why "Distributed and Integrated"?
Traditionally, cellular systems used standalone Base Stations (BTS) installed indoors. Today, the architecture is distributed, with BBUs (Baseband Units) and RRUs installed closer to antennas, such as on towers.
Key Functions of RRU:
Acts as a Transceiver: Transmits and receives signals between the user and base station.
Connectivity Support: Manages power, delay, and other parameters for seamless UE connectivity.
Signal Processing: Processes electromagnetic (EM) signals received from antennas.
Physical Link Interface: Bridges optical (fiber) and EM (radio) links.
Auxiliary Equipment Control: Supports devices like RCUs for Remote Electrical Tilt (RET).
Signal Generation: Generates VSWR, RET, and ACT signals for monitoring and control.
Hardware Overview:
CPRI Port:
Typically two ports (CPRI0, CPRI1) for connecting to the BBU.
Uses a bidirectional Fiber optic link (Common Public Radio Interface protocol).
RF Port:
Connects to antennas via jumper cables.
Includes dedicated Tx (transmit) and Tx/Rx (transmit/receive) ports.
RET Port:
Connects to the Remote Control Unit (RCU) via RET cables.
Often uses a DB9 connector (e.g., Huawei models).
Power Supply Port:
Operates at -48V.
Typically uses blue (-) and black (0) connectors.
Ground Port:
Provides surge and voltage protection using copper ground cables connected to a nearby bus bar.
Advantages of RRU Deployment:
Reduces coaxial cable losses.
Increases system efficiency.
Simplifies site construction and upgrades.
By integrating RRUs, cellular networks achieve better performance, scalability, and adaptability to new technologies.
Comments
Please Join Us to post.
0