T-Mobile Explores Limits of High-Band Spectrum
T-Mobile is testing millimeter-wave spectrum on a 5G stand-alone network, collaborating with Ericsson and Qualcomm Technologies. T-Mobile said Wednesday it demonstrated download speeds greater than 4.3 Gbps without relying on low-band or mid-band spectrum to anchor the connection, using eight…
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aggregated channels of high-band spectrum. In addition, it aggregated four channels of mmW for the uplink, reaching speeds exceeding 420 Mbps. T-Mobile noted that while high band “can deliver incredibly fast speeds because it offers massive capacity,” it doesn’t propagate well, “making it less ideal” for mobile phone users who are moving. T-Mobile said it’s testing its use in crowded areas like stadiums and for fixed wireless. “We’ve always said we’ll use millimeter wave where it makes sense, and this test allows us to see how the spectrum can be put to use in different situations like crowded venues or to power things like fixed-wireless access when combined with 5G standalone,” said Ulf Ewaldsson, president-technology at T-Mobile.