Verizon is concentrating on the 28 GHz band, working together with Ericsson, Intel, Qualcomm and Samsung, looking to launch limited 5G services by 2017 with a Samsung handset, Qualcomm chipset and network equipment from Ericsson.
T-Mobile will be testing the 28 GHz and 39 GHz bands to evaluate the performance of equipment from Nokia and Ericsson. Their immediate plans to offer the service have not been disclosed.
Last month AT&T requested the first 5G trial license to test several potential frequencies, 3.5GHz, 4GHz, 15GHz and 28 GHz, focusing more on IoT and other types of connectivity.
5G technologies operating on the lower bands can provide long- range connectivity with extremely low latency, something necessary for the next generation of connected devices. It will also be critical for C2X (car to infrastructure communications), self-driving cars, and remote management of self-driving trains.