Method and device for processing physical downlink control channel (PDCCH) information

The invention discloses a method and a device for processing physical downlink control channel (PDCCH) information, and relates to the field of data processing. The method and the device are used for optimizing radio frequency resources, and simultaneously avoiding the false inspection of a terminal side. The method comprises the following steps of: pre-processing all the PDCCH information to form a PDCCH information bit sequence of each piece of PDCCH information; multiplexing all the PDCCH information bit sequences, and adding idle bits to form an overall PDCCH information bit sequence; scrambling the overall PDCCH information bit sequence; modulating the scrambled overall PDCCH information bit sequence in a way of only modulating all the PDCCH information bit sequences to obtain an overall symbol sequence; and sequentially mapping symbols in the overall symbol sequence to time frequency resource units in a resource unit group (REG) form according to corresponding mapping positions.