METHOD AND DEVICE FOR DETERMINING SEARCH SPACES ON PHYSICAL DOWNLINK CONTROL CHANNEL COMPONENT CARRIER

摘要

A method and device for determining search spaces on a Physical Downlink Control Channel Component Carrier (PDCCH CC) are disclosed in the embodiments of the present invention. The method comprises the following steps: a user equipment obtains the activity state of a Physical Downlink Shared Channel Component Carrier (PDSCH CC), and according to the activity state of the PDSCH CC, determines the search spaces on the PDCCH CC. In the embodiments of the present invention, determining the search spaces on a PDCCH CC according to the activity state of a PDSCH CC, the search spaces can be adjusted in time, thus reducing unnecessary PDCCH blind decoding and saving power more effectively.