Transparent NTN architecture uses satellite as a bent-pipe relay, extending 5G coverage beyond the reach of ground infrastructure while keeping signal processing on the ground. It is the fastest route to hybrid satellite–terrestrial 5G at scale — and it places the performance burden squarely on the gateway physical layer.

In a transparent NTN architecture, the gateway PHY must handle the full impairments of the satellite channel — Doppler, delay, noise accumulation — while maintaining the throughput and link efficiency that broadband services require. Software-based implementations cannot meet these demands at the capacity levels that commercial operators need.

AccelerComm AX-TP provides hardware-accelerated Layer 1 IP optimised for gateway deployment in transparent and hybrid NTN systems. Selected by major aerospace and satellite primes, it is built on flight-proven technology already deployed on more than 100 satellites in orbit — giving operators and OEMs a validated physical layer foundation that accelerates the path from evaluation to commercial service.

KEY CHALLENGES

ACCELERCOMM SOLUTIONS

KEY CHALLENGE

  • Transparent NTN gateways need to compensate for satcoms channel impairments that terrestrial PHY was not designed to handle

ACCELERCOMM SOLUTION

  • AccelerComm AX-TP is optimised specifically for gateway deployment in transparent NTN architectures, handling the full range of satellite channel impairments within the PHY layer

KEY CHALLENGE

  • Software-based PHY cannot deliver the throughput and efficiency required for commercial broadband services over satellite

ACCELERCOMM SOLUTION

  • AX-TP delivers up to 10x performance improvement over software-only PHY, enabling commercial-grade capacity within the same gateway infrastructure

KEY CHALLENGE

  • Link budget constraints limit capacity and increase the cost of serving users at the edge of coverage

ACCELERCOMM SOLUTION

  • Advanced LDPC decoding unlocks 1 dB link efficiency improvement, lowering cost-per-bit and enabling service at greater distances or with smaller terminals

KEY CHALLENGE

  • Achieving reliable broadband availability across variable satellite channel conditions requires consistent low error rates

ACCELERCOMM SOLUTION

  • AccelerComm's algorithms eliminate error-rate floors, delivering ultra-low BLER across the full range of transparent NTN propagation conditions

KEY CHALLENGE

  • Integrating satellite coverage with existing terrestrial 5G infrastructure adds deployment complexity and programme risk

ACCELERCOMM SOLUTION

  • AX-TP integrates across Cloud-RAN, gateway, and edge platforms with a flexible architecture designed for hybrid terrestrial–satellite deployment

Request a demo

Contact our 5G NTN experts to request details and a demo of the performance gains from AccelerComm’s PHY solutions for NTN satellites and networks.

Latest news & insights

View all news articles

Radisys and AccelerComm Expand Satellite 5G Capabilities to Power Global IoT and Broadband Services

AccelerComm participates in Airbus UpNext SpaceRAN Demonstrator, Advancing Global 5G Connectivity in Space

Getting 6G right – Setting the standards with 3GPP

Latest resources

View all resources

Beyond Emergency Messaging: The Road to Advanced Direct-to-Device NTN Services

Direct-to-device satellite connectivity is moving rapidly beyond basic emergency messaging. This joint webinar between CCS Insight and AccelerComm combines market insights and in-depth technical analysis to explore how 3GPP Release 18 and 19 will enable networks to deliver a seamless connected experience to today’s direct-to-device ecosystem.

Watch video

Address the 5G testing challenge

Join hosts AccelerComm and Mobile World Live, for a webinar that will take a deep dive into the market analysis of the state of the 5G NTN market.

Watch video

Exploring the Horizon: which 5G architecture is right for you?

Learn about the benefits and challenges of regenerative vs transparent architecture, from technical, commercial and operational perspectives.

Watch video

Technical Challenges for 5G satellites

Discover the key features and benefits of our LEOphy layer 1 solution and how it enables more efficient 5G satellite communication.

Watch video

Maximizing the ROI of your 5G spectrum assets

Webinar discussing the challenge of 5G spectral efficiency, the issues that impact it, and the cost savings operators can realise by addressing it.

Watch video