Communication system, mobile station apparatus, base station apparatus, communication method, and integrated circuit

摘要: A signal containing uplink control information is efficiently transmitted and received between a base station apparatus mobile apparatus. terminal includes first reception processing unit unit. The receives, from the apparatus, indicating plurality of second PDCCH areas, each comprising set one or more eCCEs, eCCE eREGs, eREGs resources divisions single DL PRB pair, PUCCH resource corresponding to eCCE, at which association with eCCEs area started for area. sets, area, started, on basis information.