INFORMATION TRANSMISSION METHOD AND DEVICE

摘要

The present invention discloses an information transmission method and device, relating to the field of communications, the invention solving the problem of unlicensed spectrum data retransmission having an excessively large scheduling signaling overhead. The specific solution is: writing to a preset field of the physical downlink control channel the data retransmission identifier of a first carrier; generating a physical downlink control channel data scheduling instruction; on second carrier, sending data scheduling instruction of physical downlink control channel to receiving device; according to the physical downlink control channel data scheduling instruction, sending on the second carrier the data on the first carrier. The present invention is used for the transmission of information.