BT has become the first European mobile operator to successfully combine four channels of spectrum (opens in new tab) on a live 5G standalone (SA) network in a development that will help fulfil the speed and capacity promises of next-generation mobile services. Carrier aggregation fuses separate spectrum bands together to harness the advantages of each. For example, marrying the coverage and indoor propagation rates of low-band frequencies with the high capacity and data rates of mid and high band airwaves.
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