Patent ID: 9137803
Filing Date: 2015-09-15
Classification: H04L,H04W

Abstract:
1. A base station apparatus comprising: a selection section configured to select a fundamental frequency block or a concatenated frequency block for radio communication with a user terminal, the fundamental frequency block corresponding to an existing system band, and the concatenated frequency block which is formed by concatenating an additional carrier to the existing system band, being located on a frequency axis; a resource allocation section configured to perform resource allocation such that, when the user terminal is a terminal of a first specification and is able to support up to the fundamental frequency block, communication is performed based on the first specification using only the fundamental frequency block, and, when the user terminal is a terminal of a second specification and is able to support up to the concatenated frequency block, communication is performed based on the second specification using the concatenated frequency block; and a communication section configured to perform radio communication with the user terminal in accordance with the resource allocation by the resource allocation section, wherein the resource allocation section determines an RBG (Resource Block Group) size, which serves as a signaling unit of a resource block, which is a minimum radio resource allocation unit, in accordance with a table that is prepared in advance, the table defining RBG sizes stepwise in association with a plurality of system bands, and being configured such that the RBG size becomes the same between the fundamental frequency block and the concatenated frequency block.