What Happened to 5G Technology?

The journey of 5G technology began with early research between 2008 and 2012, involving studies by NASA and the Machine-to-Machine Intelligence Corporation (M2Mi), and the establishment of research centers like NYU Wireless and the 5G Innovation Centre at the University of Surrey. This foundational work laid the theoretical groundwork for the next generation of mobile communication. Standardization efforts intensified from 2013, with the International Telecommunication Union (ITU-R) initiating studies on the IMT-2020 framework, which would define the requirements for 5G. The 3rd Generation Partnership Project (3GPP) began work on the Radio Access Network (RAN) specifications around 2015, culminating in the official launch of 5G NR (New Radio) standards in December 2017 and the freezing of the first full 5G standard, Release 15, in June 2019.

Commercial deployment of 5G began in late 2018 with Verizon launching a fixed wireless access service in select U.S. cities. This was quickly followed by the first full commercial mobile 5G network launch in South Korea on April 3, 2019, with other countries like the U.S. and the Philippines rapidly following suit. The rapid rollout was driven by the escalating demand for higher data rates, lower latency, and increased network capacity to support the burgeoning Internet of Things (IoT) and emerging data-intensive applications. Subsequent 3GPP releases significantly expanded 5G's capabilities: Release 16, finalized in July 2020, focused on industrial IoT, automotive applications (V2X), and ultra-reliable low-latency communications (URLLC). Release 17, completed in March 2022, introduced support for non-terrestrial networks (NTN), enhanced sidelink communication, and Reduced Capability (RedCap) devices for more efficient IoT deployments.

By 2026, 5G has become a pervasive and essential digital infrastructure. It is no longer merely a faster version of 4G but the default baseline for enterprise and IoT deployments, with carriers completing extensive mid-band rollouts globally. The expansion of standalone (SA) 5G cores is a key turning point, unlocking advanced features like network slicing, which allows for dedicated virtual networks tailored to specific application requirements, and further enhancing URLLC. This maturity has profound consequences, enabling real-time applications in smart factories, autonomous systems, remote healthcare, and advanced logistics.

The current status as of July 2026 shows 5G firmly entrenched as a global standard. The global 5G services market is projected to reach USD 315.8 billion in 2026, with significant growth expected in the coming years. A major development is the exponential growth of the private 5G network market, which reached approximately USD 5.9 billion to USD 7.57 billion in early 2026 and is projected to grow substantially as enterprises adopt 5G Standalone (SA) for digital sovereignty and mission-critical operations. China, for instance, reported 5G accounting for 55% of all mobile connections, exceeding one billion connections in 2026. Furthermore, 3GPP Release 18, the first phase of '5G-Advanced,' is being finalized, with protocol coding expected by March 2024 and commercial use of eRedCap technology anticipated in 2026. This release focuses on integrating AI/Machine Learning, further enhancing Non-Terrestrial Networks, and improving Extended Reality (XR) services. Simultaneously, the industry is accelerating research and development for 6G, which is expected to become the next global standard, promising speeds up to 100 times faster than 5G by the end of the decade.