US attempts to freeze out Chinese mobile giant Huawei just amped up a notch. In a blog post published on Monday, FCC chairman's Ajit Pai proposed to stop any firm from purchasing equipment from Chinese firms including Huawei and ZTE using Universal Service Fund (USF) money. Established by the FCC in the mid-1990s, the USF is an $8.5 billion fund aimed at supporting and promoting telecoms firms and services in the US.