HELIOS 5G NR O-RAN Indoor Active Antenna Unit (AAU)

O-RAN 5G-NR, Sub 6 GHz Indoor RU Radio Unit (Indoor RU): O-RAN 8x split option 4T4R MIMO RU.


The remotely powered HELIOS 5G NR O-RAN Distributed AAUs then convert the digital CPRI packet data stream back to RF and control the switcher to PA based on synchronization signal from vBBU via FHGW/HUB, then amplify the 5G NR radio signal to the embedded MIMO services antennas.

Innovative Power-over-Fiber (PoF) feature enables flexible & simplifies installation for the AAUs through fiber by star topology, and all AAUs adopt compact & fashion design with very low power consumption, typical mounting options include pole-mount, wall-mount and ceiling-mount.

The quantity of Distributed AAUs required is dependent on coverage and performance criteria and will range from 4000 to 10000 square feet per AAU. Because each AAU is connected to the same baseband, there is not interference between them, simplifying optimization and ensuring exceptional overall throughput and end user experience.


  • High RF power output: 250mW x 4
  • Open architecture: supports O-RAN split 8x/ CPRI interface
  • Massive MIMO antenna array of 4 x 4, built-in antenna
  • DPD, CFR, and AGC for better sensitivity and communication quality
  • Low modulation EVM, ALCR, and spurious emission
  • High upload sensitivity
  • Frequency band by SKU
  • Low Power consumption and high efficiency
  • Power-over-Fiber (PoF) feature enables flexible & simplifies indoor installation

Standard Conformance

  • End-to-end Performance and Stress Test
  • 3GPP 33.511 SCAS

Technical Specifications

Frequency Range5G NR N38, N41, N77, N78, N43, N79 (FR1 Customized)
Channel Bandwidth100MHz, 90MHz, 80MHz, 60MHz, 40MHz or 20MHz (Customized)
Duplex ModeTDD – Time Division Duplex
Sub-carrier Spacing30KHz or 15KHz
Maximum Transmit Power24±2dBm per Port
Signal OptimizationDPD, CFR
Receiver Sensitivity≤-94dBm per port
Network InterfaceSFP+ Connector*2 / CPRI / O-RAN Option 8x
MTBFMin. 100,000 Hours
Ingress ProtectionIP40
Sync Mode Supported1588 v2 / SyncE
Power SupplyDC-48V via Power-over-Fiber by FHGW/HUB
MountCeiling / Wall Mounting