Patent ID: 9391756
Filing Date: 2016-07-12
CPC Classification: H04L,H04W,H05K

Claim Text:
1. An integrated circuit comprising: receiving circuitry, which, in operation, receives a downlink control channel transmitted on a control channel element (CCE) in a first search space that is comprised of a plurality of CCEs, wherein the downlink control channel includes resource assignment information indicating a resource allocated to a terminal apparatus in a component carrier n (CC transmitting circuitry, which, in operation, transmits a ACK/NACK signal on an uplink control channel, an index of which is associated with a CCE number of the CCE on which the downlink control channel is transmitted, wherein the first search space, in which the downlink control channel including the resource assignment information indicating the resource allocated in the CC wherein a CCE number that defines an end position of the first search space for the CC