METHOD AND APPARATUS FOR DETERMING SEARCH SPACE AND CANDIDATE CONTROL CHANNEL RESOURCES

摘要

A method and an apparatus for determining a search space and candidate control channel resources are provided in the invention, wherein the method for determining the search space includes the following steps: determining the number of downlink control information bits of each kind of control channels which need to be currently monitored by a User Equipment (UE) (101); according to the mapping relationship between the component carrier bearing data channel and the component carrier bearing control channel which are both currently used by the UE, determining the temporary search space corresponding to each kind of control channels which need to be monitored by the UE (102); for the control channels with the same Control Channel Element (CCE) aggregation level, which need to be monitored currently by the UE, when the number of the downlink control information bits of one or more other kinds of control channels is equal to the number of the downlink control information bits of a selected control channel, determining that the actual search space corresponding to the selected control channel is all or part of the CCEs in the sum of the temporary search spaces corresponding to all or part of the control channels with the same number of the downlink control information bits (103). With this scheme, the probability of the Physical Downlink Control Channel (PDCCH) scheduling blocking in the carrier aggregation system can be reduced.