A device and method may obtain beam offset configuration information for instructing an information transmission end to adjust an initial matching beam pair in a first preset operating mode when there is a preset operating mode change, so as to determine a target matching beam pair in a second preset operating mode, wherein the preset operating mode change indicates that the information transmission end is switched from the first preset operating mode to the second preset operating mode. The device and method may adjust the initial matching beam pair according to the beam offset configuration information, in response to detecting that the information transmission end or a local end communicating with the information transmission end is switched from the first preset operating mode to the second preset operating mode, so as to obtain the target matching beam pair and transmit information according to the target matching beam pair.