Qualcomm Technologies, in partnership with China Mobile Device Company, Xiaomi, and Sky Limit Entertainment, has unveiled China’s inaugural 5G Advanced mmWave test platform. This significant advancement in 5G technology utilizes the Snapdragon X75 modem, the world’s first 5G Advanced-ready Modem-RF System, housed within a Xiaomi 14 Pro device. The platform’s launch signifies a pivotal moment in the evolution of 5G, focusing initially on extended reality (XR) services. Specifically, it aims to support concurrent multi-user XR competitive gaming experiences at Sky Limit Entertainment’s SoReal Paradise in Shougang Park.

Spanning an area of nearly 1,000 square meters, the 5G mmWave connection promises latency below 10 milliseconds. This responsiveness ensures seamless XR encounters within the park, facilitating backpack-free, cable-free, and multi-user competitive gaming in expansive environments.

Beyond its technological achievements, the 5G-A mmWave test platform serves as a catalyst for building a robust ecosystem of devices. It is engineered to adapt to a variety of applications, thereby accelerating the maturity and widespread deployment of mmWave 5G technology. The platform showcases mmWave’s capabilities, including high bandwidth, large capacity, and minimal latency, empowering device manufacturers to innovate and deliver enhanced connectivity experiences across diverse sectors.

mmwave and sub 6 carrier aggregation

Additionally, at the congress, China Unicom Research Institute and Qualcomm Technologies showcased their achievement in advancing mmWave and sub-6 GHz carrier aggregation. This breakthrough 5G capability, demonstrated in Chengdu, combines:

  • 800 MHz bandwidth in the 26 GHz high-frequency band, and
  • 100 MHz bandwidth in the 3.5 GHz low band.

The result was a remarkable peak downlink speed exceeding 8.5 Gbps, achieved using a smartphone-sized device powered by the Snapdragon X80 Modem-RF System.

This development not only improves the efficiency of spectrum utilization but also enables more immersive 5G experiences. The successful validation of this technology within a novel New Radio Carrier Aggregation (NR-CA) network architecture sets a new benchmark for enhancing user experiences, reducing latency, and influencing the global advancement and application of 5G technology.


In collaboration with ZTE Corporation and China Unicom Guangdong Branch, Qualcomm Technologies achieved another milestone by completing the commercial verification of 5G-A downlink 4-Carrier Component Carrier Aggregation (4CC CA) capability in Shenzhen. This verification, which aggregated four carriers across 900 MHz, 2.1 GHz and 3.5 GHz bands, utilized commercial 5G network equipment from ZTE and test devices equipped with Snapdragon X80. Field tests showed that single-user downlink data rates could reach 3.8 Gbps, significantly enhancing the performance over the existing 3.5 GHz single-carrier network.