T-Mobile has a habit of claiming world records and has done so again in reaching 2.2 Gbps over a 5G uplink using New Radio dual connectivity (DC). This was achieved in a trial at the 70,240 seat sports and entertainment SoFi Stadium in California. While we might tire of all the hyperbole, the trial was notable for aggregating mmWave with midband spectrum and in so doing boosting the uplink capacity considerably. This was because it could allocate 60% of the mmWave capacity to the uplink rather than the 20% it had been restricted to previously, by applying the latest DC standards which enable both carriers to be deployed almost instantaneously. The operator did not confirm exactly how this 60% figure…