Because of well-known reasons, Huawei's research and development ability is too strong, for the first time broke the Western world's scientific and technological walls, and surpassed the United States in the field of communications 5G technology patents (that is, the so-called lighthouse country), so the United States launched technical sanctions, but also launched four rounds of sanctions, and finally, manufacturing technology containing American technology can not be manufactured for production. And do not let the semiconductor industry in Japan and South Korea sell antenna front-end filter lens sensor elements to Huawei, and domestic 5G filters are not yet manufactured, resulting in Huawei empty 5G chips and not selling 5G mobile phones, can only sell 4G mobile phones.