In 4G LTE and 5G New Radio (NR), Orthogonal Frequency Division Multiplexing (OFDM) has been the undisputed king of physical layer multi-carrier waveforms. OFDM works exceptionally well in static or low-speed environments like homes, offices, and walking speeds. However, as we move toward 6G—where devices communicate on high-speed bullet trains (350+ km/h), in low-Earth orbit (LEO) satellites moving at 28,000 km/h, and in autonomous vehicle-to-everything (V2X) swarms—OFDM hits

Introduction 3GPP Release 18 marks the first 5G-Advanced release, focusing on AI/ML integration, extreme performance for XR/Industrial IoT, mobile IAB, enhanced positioning, and spectrum efficiency up to 71 GHz. RAN workgroups (RAN1–RAN5) deliver these through physical layer evolution, protocol optimizations, architecture updates, RF requirements, and testing frameworks.​ Release 18 builds on Rel-17's foundations with AI/ML for RAN optimization, centimeter-level positioning,

A detailed set of parameter and procedure adaptations in 5G NTN ensures successful attach, random access, AMF selection, Mobility and UE...

Downlink and uplink timing synchronization between the UE and gNB in a 5G NR Non-Terrestrial Network (NTN) introduces several unique...

Introduction The integration of Non-Terrestrial Networks (NTN) into the 5G ecosystem represents a significant evolution, aiming to...

What is 5G NTN 5G NTN(Non‑Terrestrial Networks) is the 3GPP‑standardized use of satellites and high‑altitude platforms as part of the 5G...