About the RRU5304w
An RRU is a Remote Radio Unit (or Head). It is the radio-frequency (RF) part of a cell site, performing signal modulation, demodulation, processing, and amplification. The RRU is installed near the antenna and connected to a baseband unit (BBU) via a fiber optic cable. This configuration reduces signal loss and makes it easier to upgrade equipment.
The RRU5304w model is an outdoor unit that supports multiple radio access technologies (RATs) through its Software-Defined Radio (SDR) technology, configurable via software.
Key specifications
Specific configurations of the RRU5304w exist for different frequency bands and technologies.
Common configuration example (700 MHz band):
- RATs supported: LTE FDD, LTE NB-IoT, and NR FDD.
- Frequency band: 700 MHz (Band 28/n28).
- Configuration: 4 Transmit and 4 Receive (4T4R) channels.
- Maximum output power: 4 x 60 W.
- CPRI ports: Two Common Public Radio Interface (CPRI) ports for connecting to the BBU, with data rates up to 9.8 Gbit/s.
- Power: -48 V DC input.
- Protection: IP65 rating, which means it is protected from total dust ingress and low-pressure water jets from any direction.
What "GCS" signifies
Based on telecommunications vendor sourcing information, "GCS" is a specific HW (Huawei) product code, likely 02312GCS. This alphanumeric code corresponds to a specific hardware version or configuration of the RRU5304w, which operates in the 2600 MHz band with a 4T4R, 4 x 60W output.
Role in a network
The RRU5304w/GCS works with other equipment to form a complete base station:
- RRU: The RRU5304w handles the radio signals near the antenna.
- BBU (Baseband Unit): Processes the baseband signals and controls the base station. It is typically located in an equipment room and connected to the RRU by fiber.
- Antenna: The RRU connects directly to the antenna, which transmits and receives the wireless signals to and from users.
