Patent ID: 8446870
Filing Date: 2013-05-21
Classification: H04L,H04W

Abstract:
1. A user equipment comprising: a receiver configured to receive downlink data on a plurality of downlink component carriers; and a transmitter configured to transmit uplink data on one or more uplink component carrier(s), wherein a number of the one or more uplink component carrier(s) used for uplink data transmission is less than a number of the plurality of downlink component carriers used for downlink data reception, wherein the receiver is configured to: (a) receive downlink resource allocation information directed to the user equipment for a first downlink component carrier and uplink resource allocation information directed to the user equipment for the one or more uplink component carrier(s), from information included in a first channel of the first downlink component carrier, (b) receive downlink resource allocation information directed to the user equipment for a second downlink component carrier, which is different from the first downlink component carrier, from information included in a second channel of the second downlink component carrier, (c) receive the downlink data on the first downlink component carrier in accordance with the downlink resource allocation information included in the first channel of the first downlink component carrier, and (d) receive the downlink data on the second downlink component carrier in accordance with the downlink resource allocation information included in the second channel of the second downlink component carrier, wherein the transmitter transmits the uplink data on the one or more uplink component carrier(s) in accordance with the uplink resource allocation information included in the first channel of the first downlink component carrier, and wherein, after the uplink data transmission on the one or more uplink component carrier(s), the receiver receives a response signal for the uplink data on the first downlink component carrier but not on the second downlink component carrier.