Sprint this week reached a milestone toward launching 5G when it successfully tested 5G in the real world, on its network in San Diego. The company used a smartphone test device from Qualcomm and network equipment from Nokia. Sprint's 5G network uses massive MIMO technology in Sprint's unique 2.5 GHz band. Sprint's tests have demonstrated 5G delivering a 4-10x increase in capacity and speed compared to 4G LTE. Sprint plans to launch 5G in nine cities by the middle of the year.


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