METHOD AND APPARATUS FOR REPORTING FEEDBACK INFORMATION FOR MULTI-CARRIER OPERATION

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus for reporting feedback information about a multi-carrier operation.SOLUTION: A method to be used by a wireless transmission/reception unit (WTRU) includes receiving data via at least two downlink(DL) carriers, therein the data are received via each carrier by using an OFDMA (Orthogonal Frequency Division Multiple Access); receiving the assignment of a plurality of resources associated with the uplink control channels of uplink carriers; and transmitting a hybrid automatic repeat request(HARQ) positive acknowledgement/negative acknowledgement (ACK/NACK) information with respect to the downlink carriers by using the uplink control channels, therein the downlink carriers associated with the HARQ ACK/NACK information are discriminated by the resources of the plurality of assigned resources to be used for the uplink control channels.