ALIX


ALIX satellite simulation on laptop

ALIX is a 5G TN/NTN system-level simulator that is used for detailed protocol level simulations for 5G NTN and TN. 

Operating on a packet level resolution, ALIX makes it possible to evaluate technology performance, support 3GPP 5G NTN standardization efforts, and research future technologies such as 5G-Advanced and 6G NTN. 

Support 5G TN/NTN standardization

Evaluate technology performance and differences

Research and develop new technology


USE CASES

  • Supporting 3GPP 5G NTN standardization activities

    Standardization enables the production of high quality systems, products and services.

  • Gaining insight into technology performance and differences

    For example, DVB and 5G NR, or HARQ details.

  • Constellation subset simulation

    Focused simulations of a satellite constellation subset: magnified view.

  • Reduce technology development costs

    Reduce costs by verifying system functionality before investing in devices.

Satellite beam simulation
Satellite beam simulation

See how ALIX helped us research and compare technologies in these projects

ESA ARTES final presentation days advertisement

MARINA: Comparing DVB-S2X and 5G NR technologies

a child’s head with a glowing brain illustration symbolizing artificial intelligence

EAGER: Researching future 5G-Advanced and 6G NTN technologies


FEATURES

Based on 3GPP specifications

For example:

  • TR 38.811 in terms of NTN channel modeling
  • TR 38.821 in terms of NTN simulation scenario and parameterization.

Focus on NTN

Also supports:

  • TN channel models
  • TN + NTN scenarios

All system level calibration scenarios defined by TR 38.821

  • LEO-600, LEO-1200, GEO
  • Handheld terminals, VSAT terminals
  • Frequency reuse factors: 1, 3, 2+2
  • Frequency bands: S-band, Ka-band

Or custom altitude, frequency, and terminal configuration.

Focus on RAN features (PHY, MAC, RLC)

  • 3GPP defined TN & NTN channel models
  • L2S (link-to-system) mapping for modeling the PHY/receiver performance
  • Power control, HARQ, ACM, scheduling, RLC UM/AM
  • Handovers
  • PDCP Multi-Connectivity

Higher layers

  • Core network simplified
  • UDP, TCP, traffic generators (applications)

Focus on user plane

Rather than control plane


Explore the technologies of tomorrow with ALIX


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