AccelerComm to deliver cell service from space with 5G NTN LEO

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AccelerComm, the Layer 1 5G IP specialists, and TTP, an independent technology and product development company based in the UK, are jointly formulating a high-performance 5G LEO Regenerative - base station for deployment on low-earth orbit (LEO) satellites.

www.newelectronics.co.uk/, Feb. 13, 2023 – 

The project combines their expertise and IP and additional technology from other partners to propose a dedicated 5G regenerative gNodeB solution tailored to support high-performance 5G services in the challenging environment of a Non-Terrestrial Network (NTN).

In a typical LEO deployment, one satellite covers a wide geographical area, using a large number of beams to cover a multitude of subscribers. Terrestrial gNodeB products of similar scale are not designed to deal with this unique LEO deployment challenge. Also, any gNodeB platform for space applications will be highly constrained in size, weight, and power and must be able to work in the hostile space environment.

"For satellite 5G to be truly successful, there are a number of performance and efficiency challenges which have to be overcome. Solving these requires building on the existing 3GPP technologies to create a tailored solution built to deal with the unique challenges," explained Rob Barnes, Chief Marketing Officer at AccelerComm.

The joint AccelerComm TTP LEO Regenerative base station solution will be designed to meet the growing demand for satellite-based eMBB (enhanced Mobile Broadband) and IoT (Internet of Things) services.

The solution is intended for businesses and organisations that need to connect people and devices in remote locations, or for governments looking to provide internet access to all citizens.

It will support a large number of beams and high subscriber density and will be delivered on a space-hardened platform optimised for low-power and size. It includes a range of advanced developments in beam-to-cell mapping, beam forming and NTN beam-management.

The O-RAN compliant gNodeB leverages AccelerComm's LEOphy, a Layer 1 modem that delivers enhanced performance for low-earth orbit satellite communications. LEOphy has, what the company claims as, the lowest error rates, along with dedicated features to overcome the specific challenges of NTN channels, such as high path losses, differential delays, doppler shift, long propagation delays, and rapid fluctuations in signal amplitude and phase caused by atmospheric effects.

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