FIELD: radio engineering, communication.
SUBSTANCE: invention relates to a method of detecting downlink control information. The method includes steps of, when scheduling across carriers is enabled, determining by user equipment (UE) user-specific search space monitoring a physical downlink control channel (PDCCH) according to component carrier indices, wherein the component carrier indices include component carrier indices corresponding to various component carriers implementing scheduling across carriers and being scheduled across carriers. The present invention also provides a device for detecting downlink control information, user equipment and a network side device.
EFFECT: solving the overlap problem of common search space and user-specific search space in LTE Release 10 and solving the problem of determining a search space for the PDCCH when scheduling across carriers is enabled in LTE Release 10.
28 cl, 3 dwg, 7 tbl
