Method, base station and user equipment that allow to provide a feedback regarding a positive / negative acknowledgment message, ACK / NACK, during carrier aggregation

摘要

A method for operatively feedback of negative confirmation / confirmation information, ACK / NACK, for carrier aggregation, comprising: configuring a pre-established common field in Downstream Link Control information, DCI, as at least one type of related order field with ACK / NACK feedback, where the common field can be configured as a transmission power control order field, TPC, and an ACK, ARI resource indication order field and the configuration of a common field preset in DCI as at least one type of order field related to an ACK / NACK feedback which further comprises: configuring the common field in at least one DCI element transmitted by a downlink component carrier linked to the system as a TPC order field and configure the common field in at least one DCI element transmitted by a downlink component carrier not linked to the system as an ARI order field, where a downlink component carrier is linked to the system when it is implicitly mapped to an uplink component carrier and send the DCI information to a user equipment, so that the user equipment operatively re-enter ACK / NACK information in accordance with DCI.