A cooperating set selection method for a wireless communication system, comprising the steps of: determining a transmission mode utilized by the wireless communication system, wherein the transmission mode is Joint Processing or Coordinated Scheduling/Beamforming; and selecting a cooperating set based on a cooperating set selection mechanism corresponding to the transmission mode utilized by the wireless communication system; wherein: with the cell-based cooperating set, the cooperating set of all the terminals within a coverage range of a certain cell are the same; wherein the wireless communication system comprises a homogeneous network and a heterogeneous network, and in the selection of the cooperating set, a cooperating set selection mechanism for the homogeneous network or the heterogeneous network is utilized further according to different interference characteristics of the homogeneous network and the heterogeneous network; and wherein in a case that the transmission mode of Coordinated Scheduling/Beamforming is utilized by the wireless communication system, the corresponding cooperating set selection mechanism comprises a cell-based selection mechanism, with respect to a first cell on which the cooperating set selection is based, wherein for the homogeneous network, one or more cells whose distances from the first cell are smaller than a predetermined threshold are selected as the cooperating set based on a distance criterion, and for the heterogeneous network, a cooperating set is selected, besides based on the distance criterion, further based on whether the first cell is a macro cell or a micro cell and whether the macro cell and micro cells in the coverage of the macro cell use a same cell number. determining a transmission mode utilized by the wireless communication system, wherein the transmission mode is Joint Processing or Coordinated Scheduling/Beamforming; and selecting a cooperating set based on a cooperating set selection mechanism corresponding to the transmission mode utilized by the wireless communication system; wherein: with the cell-based cooperating set, the cooperating set of all the terminals within a coverage range of a certain cell are the same; wherein the wireless communication system comprises a homogeneous network and a heterogeneous network, and in the selection of the cooperating set, a cooperating set selection mechanism for the homogeneous network or the heterogeneous network is utilized further according to different interference characteristics of the homogeneous network and the heterogeneous network; and wherein in a case that the transmission mode of Coordinated Scheduling/Beamforming is utilized by the wireless communication system, the corresponding cooperating set selection mechanism comprises a cell-based selection mechanism, with respect to a first cell on which the cooperating set selection is based, wherein for the homogeneous network, one or more cells whose distances from the first cell are smaller than a predetermined threshold are selected as the cooperating set based on a distance criterion, and for the heterogeneous network, a cooperating set is selected, besides based on the distance criterion, further based on whether the first cell is a macro cell or a micro cell and whether the macro cell and micro cells in the coverage of the macro cell use a same cell number. with the cell-based cooperating set, the cooperating set of all the terminals within a coverage range of a certain cell are the same; wherein the wireless communication system comprises a homogeneous network and a heterogeneous network, and in the selection of the cooperating set, a cooperating set selection mechanism for the homogeneous network or the heterogeneous network is utilized further according to different interference characteristics of the homogeneous network and the heterogeneous network; and wherein in a case that the transmission mode of Coordinated Scheduling/Beamforming is utilized by the wireless communication system, the corresponding cooperating set selection mechanism comprises a cell-based selection mechanism, with respect to a first cell on which the cooperating set selection is based, wherein for the homogeneous network, one or more cells whose distances from the first cell are smaller than a predetermined threshold are selected as the cooperating set based on a distance criterion, and for the heterogeneous network, a cooperating set is selected, besides based on the distance criterion, further based on whether the first cell is a macro cell or a micro cell and whether the macro cell and micro cells in the coverage of the macro cell use a same cell number.