A wireless communication method applied in a User Equipment (1200, 1400, 1500, 1610), named UE hereinafter, comprising: obtaining a first indication from a network device (1300, 1400, 1500, 1620), the first indication being used for indicating a transmission mode; and determining the transmission mode based on the first indication, the transmission mode being used for communications between the network device (1300, 1400, 1500, 1620) and the UE (1200, 1400, 1500, 1610), and the transmission mode being a first transmission mode or a second transmission mode, wherein in the first transmission mode, the network device (1300, 1400, 1500, 1620) performs transmission in a Bandwidth Part, named BWP hereinafter, comprising a plurality of BWP parts, to which Listen Before Talk, named LBT hereinafter, is to be applied, when an entirety of the BWP has passed Clear Channel Assessment, named CCA hereinafter, and in the second transmission mode, the network device (1300, 1400, 1500, 1620) performs transmission in one or more BWP parts contained in the plurality of BWP parts that have passed CCA, the wireless communication method is characterized in that each of the plurality of BWP parts is an LBT bandwidth, and the LBT bandwidth is a Resource Block, named RB hereinafter, set, the first indication comprises a search space configuration, wherein said determining the transmission mode based on the first indication comprises: determining the transmission mode based on the search space configuration, wherein said determining the transmission mode based on the search space configuration comprises: determining the transmission mode as the second transmission mode when a first parameter is configured in the search space configuration; and determining the transmission mode as the first transmission mode when a first parameter is not configured in the search space configuration. obtaining a first indication from a network device (1300, 1400, 1500, 1620), the first indication being used for indicating a transmission mode; and determining the transmission mode based on the first indication, the transmission mode being used for communications between the network device (1300, 1400, 1500, 1620) and the UE (1200, 1400, 1500, 1610), and the transmission mode being a first transmission mode or a second transmission mode, wherein in the first transmission mode, the network device (1300, 1400, 1500, 1620) performs transmission in a Bandwidth Part, named BWP hereinafter, comprising a plurality of BWP parts, to which Listen Before Talk, named LBT hereinafter, is to be applied, when an entirety of the BWP has passed Clear Channel Assessment, named CCA hereinafter, and in the second transmission mode, the network device (1300, 1400, 1500, 1620) performs transmission in one or more BWP parts contained in the plurality of BWP parts that have passed CCA, the wireless communication method is characterized in that each of the plurality of BWP parts is an LBT bandwidth, and the LBT bandwidth is a Resource Block, named RB hereinafter, set, the first indication comprises a search space configuration, wherein said determining the transmission mode based on the first indication comprises: determining the transmission mode based on the search space configuration, wherein said determining the transmission mode based on the search space configuration comprises: determining the transmission mode as the second transmission mode when a first parameter is configured in the search space configuration; and determining the transmission mode as the first transmission mode when a first parameter is not configured in the search space configuration. determining the transmission mode based on the search space configuration, wherein said determining the transmission mode based on the search space configuration comprises: determining the transmission mode as the second transmission mode when a first parameter is configured in the search space configuration; and determining the transmission mode as the first transmission mode when a first parameter is not configured in the search space configuration. determining the transmission mode as the second transmission mode when a first parameter is configured in the search space configuration; and determining the transmission mode as the first transmission mode when a first parameter is not configured in the search space configuration.