A wireless communication method, comprising: receiving (S210), by a terminal device, Transmission Configuration Indication, TCI, state configuration information transmitted by a network device, characterized in that , the TCI state configuration information comprises Synchronization Signal Block, SSB, indication information, and the SSB indication information is an SSB Quasi-Co-Located, QCL, index, the SSB QCL index being an index adapted to indicate that several SSBs have a QCL relationship, wherein SSBs having a same SSB QCL index satisfy the QCL relationship, and SSBs having different SSB QCL indices do not satisfy the QCL relationship, the method further comprises: determining, by the terminal device, an SSB satisfying a QCL relationship with a downlink channel based on the SSB indication information; and receiving (S220), by the terminal device, the downlink channel based on the QCL relationship between the SSB and the downlink channel, wherein said determining, by the terminal device, the SSB comprises: calculating, by the terminal device, a result of an operation of an SSB transmission position index modulo a parameter Q; and determining, by the terminal device, an SSB that corresponds to the SSB transmission position index and has the result identical to the SSB QCL index included in the TCI state configuration information. receiving (S210), by a terminal device, Transmission Configuration Indication, TCI, state configuration information transmitted by a network device, characterized in that , the TCI state configuration information comprises Synchronization Signal Block, SSB, indication information, and the SSB indication information is an SSB Quasi-Co-Located, QCL, index, the SSB QCL index being an index adapted to indicate that several SSBs have a QCL relationship, wherein SSBs having a same SSB QCL index satisfy the QCL relationship, and SSBs having different SSB QCL indices do not satisfy the QCL relationship, the method further comprises: determining, by the terminal device, an SSB satisfying a QCL relationship with a downlink channel based on the SSB indication information; and receiving (S220), by the terminal device, the downlink channel based on the QCL relationship between the SSB and the downlink channel, wherein said determining, by the terminal device, the SSB comprises: calculating, by the terminal device, a result of an operation of an SSB transmission position index modulo a parameter Q; and determining, by the terminal device, an SSB that corresponds to the SSB transmission position index and has the result identical to the SSB QCL index included in the TCI state configuration information. determining, by the terminal device, an SSB satisfying a QCL relationship with a downlink channel based on the SSB indication information; and receiving (S220), by the terminal device, the downlink channel based on the QCL relationship between the SSB and the downlink channel, wherein said determining, by the terminal device, the SSB comprises: calculating, by the terminal device, a result of an operation of an SSB transmission position index modulo a parameter Q; and determining, by the terminal device, an SSB that corresponds to the SSB transmission position index and has the result identical to the SSB QCL index included in the TCI state configuration information. <EOS>