METHODS AND DEVICES FOR COMPONENT CARRIER AGGREGATION CONTROL

摘要

In a communication system using aggregation of component carriers, a transmitter (210) comprises a transmitting entity (212) configured to transmit data messages (21) on multiple component carriers. The transmission of the data messages (21) is accomplished on the basis of a retransmission protocol. The retransmission protocol requires sending of an acknowledgement message (22) in response to verifying correct receipt of a data message (21). A receiver (220) comprises a receiving entity (222) configured to receive the data messages (21) on the basis of the retransmission protocol. In response to a decision to deactivate transmission on one of the aggregated component carriers, the retransmission protocol is triggered to retransmit those data messages (21) for which no acknowledgement message (22) of the retransmission protocol has been received. The retransmission is accomplished on at least one other of the component carriers. A further retransmission protocol may be used on each of the component carriers, with respective transmitting entities (214, 216) in the transmitter (210) and respective receiving entities (224, 226) in the receiver (220).