Huawei, the Chinese tech giant leading in areas such as 5G and artificial intelligence, provides a variety of high-tech products and services to people around the world. Where does the firm's innovation come from? Its Songshan Lake Campus in Dongguan City, south China's Guangdong Province, may give you an insight into its success. CGTN reporter Dong Xue and British vlogger Jason Lightfoot take you around the campus.