Method and apparatus for performing uplink hybrid automatic repeat request operation in an asymmetric multicarrier communication network environment

The method of claim 1, further comprising:

• if the feedback information indicates negative acknowledgement corresponding to the transmitted packet, retransmitting, to the base station, the packet in a time interval corresponding to one of partitions of a subsequent uplink allocation interval on the first carrier;
• and
• receiving resource allocation information in a resource allocation region of the subsequent downlink subframe on the second carrier, wherein the resource allocation information indicates frequency resource for each of the plurality of feedback regions.

The method of claim 1, wherein determining the feedback region in the subsequent downlink subframe comprises:

• determining the partition of the uplink allocation interval in which the packet is transmitted;
• and
• determining the feedback region in the subsequent downlink subframe corresponding to the determined partition of the uplink allocation interval.

The method of claim 1, wherein a number of the partitions in the uplink allocation interval is equal to a number of feedback regions in the subsequent downlink subframe on the second carrier, and

• wherein each of the partitions of the uplink allocation interval comprises one or more time intervals.

The method of claim 5, wherein determining the feedback region in the subsequent downlink subframe comprises:

• determining the partition of the uplink allocation interval in which the packet transmission is transmitted;
• and
• determining the feedback region in the subsequent downlink subframe corresponding to the determined partition of the uplink allocation interval.

The method of claim 5, wherein a number of partitions in the uplink allocation interval is equal to a number of feedback regions in the subsequent downlink subframe on the second carrier, and

• wherein each of partitions of the uplink allocation interval comprises one or more time intervals.

The apparatus of claim 8, wherein the processor is configured to:

• if the feedback information indicates negative acknowledgement corresponding to the transmitted packet, retransmit, to the base station, the packet in a time interval corresponding to one of partitions of a subsequent uplink allocation interval on the first carrier;
• and
• receive resource allocation information in a resource allocation region of the subsequent downlink subframe on the second carrier, wherein the resource allocation information indicates frequency resource for each of the plurality of feedback regions.

The apparatus of claim 9, wherein the processor is configured to:

• determine the partition of the uplink allocation interval in which the packet is transmitted;
• and
• determine the feedback region in the subsequent downlink subframe corresponding to the determined partition of the uplink allocation interval.

The apparatus of claim 9, wherein a number of partitions in the uplink allocation interval is equal to a number of feedback regions in the subsequent downlink subframe on the second carrier, and

• wherein each of the partitions of the uplink allocation interval comprises one or more time intervals.

The apparatus of claim 12, wherein the processor is configured to:

• determine the partition of the uplink allocation interval in which the packet transmission is transmitted;
• and
• determine the feedback region in the subsequent downlink subframe corresponding to the determined partition of the uplink allocation interval.

The apparatus of claim 12, wherein a number of partitions in the uplink allocation interval is equal to a number of feedback regions in the subsequent downlink subframe on the second carrier, and

• wherein each of partitions of the uplink allocation interval comprises one or more time intervals.