Why do you have to pay patent fees to buy chips?

The reason why you need to pay patent fees for chips is because Qualcomm, a chip manufacturer, owns 3G, 4G, 5G and some related software functional technology patents. These patented technologies are necessary for manufacturing and selling mobile devices. Therefore, as long as mobile phone manufacturers need to obtain honeycomb coal, they need to pay royalties to Qualcomm. This has nothing to do with whether Qualcomm's chips are used or not. As long as a mobile phone manufacturer needs to access the honeycomb briquette, no matter whether it uses Qualcomm's chips or not, it needs to pay the patent fee to Qualcomm.