Qualcomm and China Unicom complete 5G-A high and low frequency NR-CA on-site verification for the first time: downlink peak exceeds 8.5Gbps

News on June 25. Recently, at the new technology test site in Chengdu, China Unicom Research Institute and Qualcomm jointly demonstrated a new milestone in 5G Advanced (5G-A) technology by deploying a new 5G-A high and low frequency multi-carrier aggregation solution. , successfully verified the high-speed experience under the new NR-CA networking architecture for the first time.

This verification utilizes the 800MHz bandwidth of the high-frequency band and the 100MHz bandwidth of the 3.5GHz low-frequency band to jointly perform carrier aggregation. On a smartphone equipped with the Snapdragon X80 baseband and radio frequency system, the peak single-user downlink rate exceeds 8.5Gbps.

The application of 5G-A's new high- and low-frequency carrier aggregation technology can intelligently and quickly adjust the use of high-frequency carriers based on user business traffic characteristics, thereby optimizing user experience and reducing latency.

This can not only improve the utilization efficiency of spectrum resources, but also provide technical support for a variety of emerging services, such as 4K/8K live sports events, XR (extended reality), naked-eye 3D and other ultra-high-definition video live broadcast services.

At the same time, as 5G-A technology continues to mature, it is expected that there will be more innovative applications, such as intelligent transportation systems, low-altitude economy, industrial digitization, etc.

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