What is Nokia AirScale Radio Access Network (RAN) ？

Overview of Nokia AirScale BBU & RRU / RRH Series

Nokia AirScale is a modular 4G LTE and 5G NR radio access platform widely adopted by global telecom operators. The system consists of two core components: BBU (Baseband Unit) and RRU/RRH (Remote Radio Unit). The BBU handles baseband computing, system control, clock synchronization and radio resource management, while the RRU/RRH is responsible for radio frequency signal transmission and reception at cell sites.

AirScale modular design enables flexible network deployment, easy capacity expansion and convenient spare part replacement. It is the mainstream hardware for modern mobile communication networks, suitable for new network construction, network upgrade, station maintenance and fault replacement projects.

Application of Nokia AirScale BBU & RRU/RRH

• Mobile Operator 4G & 5G Radio Access Network Construction
• Telecom Network Capacity Expansion & Spectrum Upgrade
• Base Station Daily Operation, Maintenance & Fault Repair
• Network Renovation & Legacy Infrastructure Replacement
• Disaster recovery: fast spare swap to reduce site downtime

Nokia 473764A.102 ASIB Common Baseband Module

Nokia AirScale 473764A.102 ASIB is the S23 version Common Baseband Module for Nokia AirScale BBU subrack. As the core control and baseband processing board of AirScale base station system, it supports both 4G LTE and 5G NR radio access networks.

This module undertakes baseband data computing, system clock synchronization, radio resource management, and communication interface between BBU and remote RRU/RRH units.

All our supplied 473764A.102 ASIB modules are genuine telecom spare parts. Every unit will be fully tested before shipment. Adequate inventory is available for quick replacement, with 3–12 months after-sales warranty to support your telecom network maintenance project.

Application of Nokia 473764A.102 ASIB

• Telecom Operator Base Station O&M: Used for daily maintenance of Nokia AirScale 4G/5G core baseband system, replace faulty baseband modules to recover normal station operation.
• Spare Parts Replacement: Direct drop-in replacement for damaged ASIB boards in existing AirScale BBU subracks, minimize network downtime.
• Network Capacity Expansion: Deployed in new or upgraded 4G LTE & 5G NR radio access networks to expand user capacity and enhance network coverage.
• Network Upgrade & Refurbishment: Suitable for telecom network renovation projects to upgrade legacy AirScale baseband system to S23 version.

Nokia AirScale Product List

AirScale RRU / RRH Radio Units

AirScale BBU Baseband Units