A wireless communication method, a wearable device, a mobile terminal, and a system are provided. In the technical solution of the present disclosure, a mobile terminal sends frequency band information to a wearable device the mobile terminal receives a second signal sent by the wearable device, converts the second signal into a second baseband signal, receives a third signal that is sent by a base station and corresponds to the frequency band information, and coverts the third signal into a third baseband signal and the mobile terminal acquires a radio signal corresponding to the frequency band information according to the second baseband signal and the third baseband signal. In this way, data can be received through multiple paths by using communication capabilities of multiple wearable devices, and the receiving capability of a mobile phone can be greatly improved.
