Non-Terrestrial

NTN Feeder Link The point-to-point RF or free-space-optical link connecting a ground-based satellite gateway to a non-terrestrial network payload, over which all user-plane and control-plane traffic between the terrestrial core network and the… Concept/Framework NTN Handover The 3GPP-defined procedure for transferring an active radio connection between non-terrestrial coverage beams, satellites, or feeder links, incorporating satellite ephemeris and predicted timing/Doppler trajectories to trigger handover ahead of signal… Concept/Framework NTN Standardisation The multi-release body of 3GPP technical specification work that defines how non-terrestrial platforms integrate into the 5G System, spanning RAN procedures, core network integration, and satellite-specific radio layer adaptations across… Regulatory & Compliance NTN User Equipment User equipment conforming to 3GPP NTN specifications, capable of establishing and maintaining a radio connection directly with a non-terrestrial 5G access node, including the GNSS positioning, autonomous timing/frequency pre-compensation, and… Hardware Onboard Processing Onboard Processing is the processing of data, control logic, or signal functions directly on a spacecraft or other remote platform rather than relying entirely on ground processing. Software Orbit Orbit is the trajectory followed by an object under the influence of gravity and its own velocity, typically around a planet, moon, or other celestial body. In operational practice, the… Concept/Framework Orbital Plane Orbital Plane is the geometric plane in which a spacecraft or satellite orbit lies around its central body. It defines the orientation of the orbit in space. Concept/Framework Orbital Slot Orbital Slot is a designated orbital position assigned to a satellite or spacecraft for operational coordination and service planning. Regulatory & Compliance Oscillator An oscillator is an electronic circuit or device that produces a periodic signal at a target frequency without requiring an external periodic input. It is used as a frequency reference… Hardware Path Loss Path loss is the reduction in received radio signal power that occurs because the signal must propagate through space and the surrounding environment. It is a fundamental factor in RF… Concept/Framework