| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for fast control channel feedback for multiple downlink carrier operations.SOLUTION: A wireless transmit/receive unit comprises a processor configured to: receive a first HS-DSCH signal on a primary serving cell, a second HS-DSCH signal on a first secondary serving cell, a third HS-DSCH signal on a second secondary serving cell, and a fourth HS-DSCH signal on a third secondary serving cell; generate a first HARQ-ACK feedback relating to the first HS-DSCH signal and the second HS-DSCH signal and a second HARQ-ACK feedback relating to the third HS-DSCH signal and the fourth HS-DSCH signal; and transmit the first HARQ-ACK feedback and the second HARQ-ACK feedback over a single uplink carrier. |
