Wireless communication method and device

The embodiment of the invention provides a wireless communication method and device, relates to the technical field of communication, and is used for improving the communication fault recovery efficiency. The method is applied to a terminal or a chip built in the terminal, a base station provides a carrier aggregation service for the terminal through at least two service cells, the at least two service cells comprise a first service cell and a second service cell, and the method comprises the following steps: when a downlink communication fault of the first service cell is detected, sending the first service cell to the base station; determining that downlink communication of the second service cell is normal; sending a communication failure recovery request in an uplink channel of the second service cell, wherein the communication failure recovery request is used for requesting to recover a downlink communication failure of the first service cell; and detecting a communication failure recovery response in a