The commercialization of global 5G networks has been completed, and 5G networks have been covered in major countries and regions around the world. 5G networks have become an indispensable and important communication resource in our daily lives, providing us with a communication experience of ultra-high speed, ultra-low latency, ultra-high device connection density, and ultra-high stability and reliability.

As 5G networks are being rapidly deployed and commercialized globally, the next generation mobile communication technology 5.5G has also been included in the IMT-2030 vision and is expected to be commercially available after 2030. As an upgraded version of 5G, 5.5G will bring revolutionary leaps in aspects like bandwidth, data rate, latency, etc. It will not only greatly expand the application scenarios, but its brand-new physical layer and MAC layer design is also envisioned by the industry to break through the 5G technical bottleneck.

From the key technical indicators' perspective, 5.5G network peak data rate can reach 1Tbps, about 10 times of the current 5G speed. This means users can download a whole 8K ultra-high-definition movie within 1 second. 5.5G will also significantly improve the single user experience data rate, delivering an even smoother and more immersive Internet surfing experience. Moreover, the upload rate of 5.5G can reach a staggering 200Gbps level, which is sufficient to meet the extremely high bandwidth needs of applications scenarios like industrial manufacturing and remote healthcare.  

Regarding network capacity and connections, 5.5G can support more than 100 billion networked devices, providing massive device access capability. This will realize real-time interconnection of various types of sensors in smart cities, and provide powerful network support for unmanned vehicle fleets and drone swarms. Also, the network latency of 5.5G can reach 0.1ms level. For latency-sensitive applications like automated vehicles and power grid protection, it will provide unprecedented guarantee capabilities.  

To achieve 5.5G's multi-dimensional benchmark breakthroughs, the industry is sparing no effort in overcoming several pivotal technical challenges. The main candidate technologies include: extremely high-scale MIMO, THz communications, AI-driven reconfigurable intelligent surfaces, etc. It is generally believed across the industry that the new designs of 5.5G physical layer and MAC layer will revolutionize wireless network performance.

Many expect that 5.5G standards will be initially formulated by 2025-2027, and after 2030, it will start to replace 5G on a global scale as the mainstream mobile network. By then, 5.5G will lead the in-depth integrated development of interconnected and intelligent societies, heralding a new era for digital life.