T-Mobile has announced that it just set a new world record for 5G upload speeds. In a recent test at California’s SoFi Stadium, Un-carrier, working with partners Ericsson and Qualcomm, was able to achieve peak upload speeds of 2.2 Gbps on its 5G network, thanks to an emerging technology called 5G DC. This, the company claims, is the fastest 5G upload speed ever recorded in the world.

5G DC or “5G Dual Connectivity” (Not to be confused with 5G UC) combines two types of 5G spectrum (midband and mmWave) to provide faster and more reliable upload speeds. Previous, T-Mobile it could use a smaller portion of the mmWave spectrum for uploads, but now the company says it’s pushed it to 60 percent to improve performance. This change will be particularly useful for faster uploads and real-time connectivity at crowded events such as football games, concerts and live broadcasts, the operator says.

While carriers have always touted fast download speeds, upload speeds are just as important, especially as more and more people stream live video, share large photos, or upload large files. T-Mobile says SoFi Stadium was the perfect testing ground for its new technology, given how millions of people flock there for concerts or games and want to live stream their experiences.

It appears that the company is only testing the possibilities of what 5G DC can do when deployed at crowded events and other public places where many people are expected to gather. This charging speed test was conducted on a smartphone powered by the Qualcomm Snapdragon X80 5G modem, which is present on the new Snapdragon 8 Elite chip.