(EN) The embodiment of the invention provides a method and base station for transmitting and receiving signals by using unauthorized carrier waves and user equipment. The method includes the steps that the base station transmits unauthorized carrier wave information to the user equipment (UE) through authorized carrier waves; after obtaining the use right to the unauthorized carrier waves through competition in a competition backspacing window, the base station uses residual resources and/or subframes behind the residual resources in the competition backspacing window for transmitting the signals to the UE, and the residual resources comprise complete orthogonal frequency-division multiplexing (OFDM) symbols after the moment point of obtaining the use right of the unauthorized carrier waves through competition and located in the competition backspacing window, or complete PFDM symbols between the moment point of obtaining the use right of the unauthorized carrier waves for the base station through competition and the moment when the subframe where the moment point is located is finished.
(ZH) 本发明实施例提一种利用非授权载波发送及接收信号的方法、基站及用户设备，该方法包括：基站通过授权载波发送非授权载波信息给用户设备UE；所述基站在竞争回退窗内竞争到非授权载波的使用权后，使用所述竞争回退窗内的剩余资源和/或剩余资源之后的子帧发送信号给所述UE，所述剩余资源包括：位于竞争回退窗内且在竞争到非授权载波的使用权时刻点之后的完整正交频分复用OFDM符号，或者基站竞争到非授权载波的使用权时刻点直到该时刻点所在子帧的结束时刻之间的完整OFDM符号。
