RAN and radio
Radio access network planning and builds: LTE and 5G cells, software-defined radios, frequency and timing calibration, coverage and performance testing.
More about RAN workRadio access networks, 4G and 5G, from the antenna to the call.
CelTech plans, builds and tunes mobile radio systems: the RAN, the core network behind it and the voice and messaging that run over it. Hands-on, vendor-neutral and based in Dublin.
What we do
One team for the whole chain, so the radio, the core and the services on top are designed to work together.
Core network and voice
4G and 5G core networks, SIM provisioning, IMS and VoLTE, and SIP calling and messaging, with monitoring that shows what every cell and phone is doing.
More about core and voiceConsulting and training
Feasibility studies, proof-of-concept builds and practical workshops on RAN, 4G and 5G, from first principles to a working network.
More about consultingBuilt and proven in our own lab
We run a working mobile network of our own: LTE cells in Band 3 alongside a 5G non-standalone cell in n77, a mobile core, IMS and a SIP voice platform with our own calling apps for Android and iOS.
Everything we recommend has been on air here first: radios calibrated against live networks, handovers between cells, and real phones attaching, browsing and making calls.
4G LTEBand 3 cells with handover between them
5G NSAEN-DC with an n77 NR cell
Core and IMSSubscriber management, data, voice
Open technologysrsRAN, OpenAirInterface, open cores
See coverage before a radio goes up
We use NVIDIA Sionna to ray-trace radio signals through a 3D model of the site, so coverage, dead zones and data rates are known before any hardware is installed.
Wireless connectivity everywhere
See CelTech’s work in action.
Planning a private or test network?
Tell us what you need to cover and connect, and we’ll tell you what it takes.