BARCELONA, Spain — Qualcomm and KT have been giving delegates at Mobile World Congress a taste of the faster download speeds we can expect to see around the world soon.Tucked away in the corner of one exhibition hall is KT (formerly Korea Telecom) showing off a modified Samsung Galaxy Note 3 connected to a bunch of computers at its booth. It looks boring, but it represents the future: mobiles capable of downloading data at 300Mbps. Wander over to the Qualcomm stand and you’ll see something more visually impressive: a prototype phone streaming two 4K videos to a TV simultaneously. Both these demos are set up to promote a new technical standard called Cat 6, which Qualcomm says doubles the theoretical maximum speed of current 4G LTE phones to 300Mbps.
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