Overview
The Huawei RRU5501 is a multi-mode remote radio unit (RRU) that supports LTE FDD, NR FDD, and GSM technologies on the 1800 MHz (Band 3/n3) and 2100 MHz (Band 1/n1) frequency bands. The designation in the product code refers to a specific variant and confirms its multi-band capabilities.
General specifications
- Manufacturer: Huawei Technologies Co., Ltd.
- Model: RRU5501/VMD.
- Unit type: Remote Radio Unit (RRU).
- Function: Part of a distributed base station system, connecting the antenna system and the Baseband Unit (BBU).
Radio frequency (RF) specifications
- Supported bands and technologies:
- 1800 MHz (Band 3/n3): Supports GSM, LTE FDD, and NR FDD.
- 2100 MHz (Band 1/n1): Supports UMTS, LTE FDD, and NR FDD.
- Transceiver mode: 4T4R, meaning it has four transmit and four receive channels for improved capacity and coverage.
- Output power: Supports a typical configuration of 4x60 W total RF power.
- Supported bandwidths:
- 1800 MHz (LTE FDD): 5, 10, 15, and 20 MHz.
- 2100 MHz (LTE FDD): 5, 10, 15, and 20 MHz.
- 2100 MHz (NR FDD): 5, 10, 15, and 20 MHz.
- NR SUL (Uplink): Supports 15 and 20 MHz.
Engineering specifications
- Input power: Direct Current (DC).
- Operating temperature: -40°C to +55°C.
- Dimensions: Approximately 400 mm x 300 mm x 120 mm.
- Weight: Approximately 20 kg.
- Cooling: Employs passive cooling through heat sinks, which is noted for its efficiency and reduced maintenance.
- Interface ports: Includes ports for power, alarm cables, and optical inputs for connection to the BBU.
Performance and features
- PIM cancellation: Built-in Passive Intermodulation (PIM) cancellation reduces signal interference and improves network coverage.
- Energy efficiency: Newer generations of Huawei RRUs, which include this model, feature technologies like "Deep Sleep" to reduce power consumption during off-peak hours.
- Fronthaul support: Supports packet-switched fronthaul via eCPRI, providing more flexible and future-proof connections to baseband units.
