Provided in the present application are a communication method, a device, and a storage medium. The communication method comprises: a terminal device sends a PUCCH to a network device, the PUCCH bearing first information, and the first information being used to indicate the reception conditions of sidelink data sent by the terminal device; the network device determines a target HARQ process number according to the correlation between the PUCCH and the target HARQ process number; and the terminal device re-transmits the sidelink data according to the target HARQ process number.