Method and apparatus for configuring search space of a downlink control channel

摘要

A method for configuring a search space of a downlink control channel is provided. The method includes determining the parameters for Enhanced Physical Downlink Control Channel (E-PDCCH) candidates of each aggregate level according to the number of Resource Elements (RE) in a subframe and/or the number of bits of Downlink Control Information (DCI) formats, when the parameters for E-PDCCH candidates of E-PDCCH search space is configured, determining, by a User Equipment (UE), the parameters for E-PDCCH candidates according to a current downlink subframe and a detected DCI format, and detecting blindly, by the UE, the E-PDCCH candidates in the E-PDCCH search space corresponding to the parameters for E-PDCCH candidates. The present invention also provides a UE and a base station. Application of the present invention can improve the flexibility of the base station scheduling, and reduce the possibility that the E-PDCCHs of different UEs block each other.

主权项

1. A method for a wireless communication, the method comprising:
determining, by a user equipment (UE), an amount of resource elements (REs) in a physical resource block (PRB) pair and a downlink control information (DCI) format for an enhanced physical downlink control channel (E-PDCCH); determining, by the UE, an amount of E-PDCCH candidates of each of aggregation levels based on the determined amount of REs in the PRB pair and the determined DCI format; and monitoring, by the UE, the E-PDCCH candidates in the E-PDCCH search space based on the determined amount of E-PDCCH candidates.