Is there a mobile phone manufacturer who doesn't have to pay patent fees to Qualcomm?

No. At present, 3G technology adopted in the world originates from CDMA in Qualcomm. Therefore, the core technology of 3G, whether Unicom or Telecom, comes from Qualcomm. The transmission technology of 4G, OFDM, also comes from Qualcomm. Only Qualcomm has a smaller proportion of 4G technology monopoly. So whether it's Huawei ZTE in China or Ericsson in Europe. No Nokia can bypass the Qualcomm patent fee.