Towards 6G Evolution: Three Enhancements, Three Innovations, and Three Major Challenges

Understand

Over the past few decades, wireless communication has witnessed remarkable growth, experiencing several transformative changes.

• This article aims to provide a comprehensive overview of wireless communication technologies, from the foundations to the recent wireless advances.
• Specifically, we take a neutral look at the state-of-the-art technologies for 5G and the ongoing evolutions towards 6G, reviewing the recommendations of the International Mobile Communication vision for 2030 (IMT-2030).
• We first highlight specific features of IMT 2030, including three IMT-2020 extensions (URLLC+, eMBB+, and mMTC+) and three new innovations (Ubiquitous connectivity and integrating the new capabilities of sensing & AI with communication functionality).