ZTE Corporation and the Hunan Branch of China Telecom – in cooperation with Qualcomm Technologies – have completed an end-to-end trial of a Fusion Assisting Super TDD (FAST) solution. By flexibly aggregating three frequency carriers in the 2.1GHz and 3.5GHz bands, the solution significantly improved 5G uplink/downlink throughput. This trial showed that the FAST solution offers excellent spectrum harmonisation for coverage and capacity both in downlink and uplink. The Hunan Branch of China Telecom deployed the FAST solution in its commercial network in Changsha city, bolstered with ZTE RAN system and a smartphone test device powered by the Snapdragon X65 5G Modem-RF System, Qualcomm Technologies’ fourth generation 5G modem-to-antenna solution. The commercial trial of downlink tri-band carrier aggregation (3C) of 2.1GHz and 3.5GHz with up to 240MHz aggregation bandwidth achieved a maximum downlink data rate of 3.9Gbps. In addition, with the feature of UL Tx Switching of Rel-16, Uplink Time Division Mode Carrier Aggregation (UL TDM CA) of 2.1GHz and 3.5GHz is enabled to boost uplink data rate up to 511Mbps.