Visitors use their mobile phones during the 10th Global mobile broadband forum hosted by Huawei in Zurich on October 15, 2019. - Chinese telecom giant Huawei announced on October 16, 2019 that it has passed the 400,000 5G antennas mark, the fifth generation of mobile phones, in the world with 56 operators who have already started to roll out the new mobile network. (Photo by STEFAN WERMUTH / AFP)