Communication method and apparatus for carrier aggregation system

摘要

Embodiments of the present invention provide a communication method for a carrier aggregation system. The communication method includes receiving physical downlink share channel PDSCH information sent by a base station through a subframe n of a secondary cell. If a subframe n of a primary cell is a downlink subframe, an ACK/NACK of the sent PDSCH information is fed back on a subframe m or a subframe p of the primary cell.

主权项

1. A communication method for carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
receiving, by a user equipment (UE), downlink information from a base station through a subframe n of a secondary cell; and feeding back, by the UE, an ACK/NACK of the downlink information on a subframe m of a primary cell; wherein n and m are subframe indexes, a subframe n of the primary cell is a downlink subframe, and the subframe m of a primary cell is determined according to an ACK/NACK timing relationship to which the subframe n of the primary cell corresponds.