T-Mobile US has announced that it has effectively doubled the LTE download speeds available to its subscribers, following the deployment of a 4×4 MIMO (multiple input, multiple output) platform. The new solution doubles the number of data paths between a cell site and an end user’s phone, the cellco notes. The upgraded 4×4 MIMO network is available in a total of 319 cities from launch, and will be available to Samsung Galaxy S7 and S7 Edge users following a software update later this month. Outside of the US, TeleGeography notes that 4×4 MIMO technology has also been extended to the Puerto Rican markets of Aguadilla-Isabela, Arecibo, Coamo, Coco, Guayama, Mayaguez, Ponce, San German, San Juan-Carolina-Caguas and Santa Isabel.
In addition, T-Mobile notes that it has launched 256 QAM (quadrature amplitude modulation) download technology, alongside 64 QAM upload technology. Combined with 4×4 MIMO, the cellco claims that 256 QAM delivers download speeds of up to 400Mbps. 256 QAM and 64 QAM functionality is already live across half of T-Mobile’s network, and by end of October it will be extended to ‘every single cell site across our nationwide network’. Finally, T-Mobile said its network covers nearly 312 million people, or 99.7% of the figure reached by the network of rival and long-time market leader Verizon.