PDCCH RESOURCE ALLOCATION METHOD AND DEVICE

摘要

The present application relates to the field of communications. Disclosed are a PDCCH resource allocation method and device, for reducing the probability of the PDCCH blocking in a system. The method comprises: according to the member carrier set allocated for a UE and the carrier aggregation (CA) capability information of the UE, both a base station and the UE determine the number of PDCCH candidates under every CCE aggregation level in the PDCCH search space corresponding to each member carrier in the member carrier set; the base station transmits DCI to the UE on the determined PDCCH candidates; and the UE conducts a blind detection on the determined PDCCH candidates to obtain the DCI transmitted by the base station. The present invention not only greatly improves the total number of times of the PDCCH blind detection actually executed by the UE within the allowable capability range of the UE, but also ensures that the total number of times of the PDCCH blind detection actually executed by the UE does not exceed the maximum times of PDCCH blind detection supported by the UE, thus avoiding PDCCH blocking and improving system performance.