SYSTEM FOR MOBILE COMMUNICATIONS, BASE STATION DEVICE, MOBILE STATION DEVICE, AND METHOD OF MOBILE COMMUNICATIONS

摘要

Disclosed is a system for mobile communications, wherein a base station device and a mobile station device aggregate a plurality of component carriers and communicate, the base station device uses a physical downstream link shared channel to transmit a downstream link transport block to the mobile station device, and transmits to the mobile station device an upstream link transmission permission signal, which includes an information that denotes a quantity of physical downstream link shared channels that are allocated upon a common subframe, and the mobile station device transmits to the base station device an information that denotes a HARQ ACK/NACK corresponding to the downstream link transport block according to the information that denotes the quantity of physical downstream link shared channels.