Patent ID: 8351385
Filing Date: 2013-01-08
Classification: H04J,H04L

Abstract:
1. A radio communication base station apparatus in which, in downlink data transmitted to a radio communication terminal apparatus subject to dynamic scheduling, resources to use to transmit an acknowledgment or negative acknowledgment in uplink from the radio communication terminal apparatus, are associated on a one-by-one basis with indexes of control channel elements allocated to a physical downlink control channel for downlink data transmission, the radio communication base station apparatus comprising: a resource control section that, when a plurality of control channel elements are allocated to one physical downlink control channel, allocates resources corresponding to one of odd index of control channel element and even index of control channel element out of the plurality of control channel elements for an acknowledgment or negative acknowledgment transmitted from the radio communication terminal apparatus subject to the dynamic scheduling, and allocates resources corresponding to the other one of the odd index of control channel element and the even index of control channel element out of the plurality of control channel elements for an acknowledgment or negative acknowledgment transmitted from a radio communication terminal apparatus subject to persistent scheduling; and a reporting section that reports the allocated resources to each radio communication terminal apparatus to which resources are allocated.