TECHNICAL FIELD

The present invention relates to a user apparatus and a base station in a radio communication system.

BACKGROUND ART

In 3rd generation partnership project (3GPP), LTE-based extension of techniques for IoT such as a smart meter in addition to an increase in radio speed and capacity of LTE has been studied. Particularly, in the specification of Release 13, Category M1 is supported as a category of a low-price terminal for IoT (hereinafter, referred to as user apparatus). In Category M1, a transmission and reception bandwidth of a user apparatus is limited to six resource blocks (RBs) and a data rate is limited to 1 Mbps (for example, see Non-Patent Document 1).

CITATION LIST

Non-Patent Document

Non-Patent Document 1: 3GPP TS 36.101 V13.4.0

SUMMARY OF THE INVENTION

Problem to be Solved by the Invention

A wearable device capable of performing voice communication or the like in addition to a smart meter is assumed as the user apparatus for IoT. However, such a device requires a data rate higher than 1 Mbps and cannot be coped with by Category M1. Therefore, in standardization of the 3GPP, an increase in data rate of Category M1 has been studied.

In order to increase a data rate, a user apparatus needs to perform transmission and reception with a bandwidth larger than the bandwidth of six RBs (1.08 MHz), but a specific technique for performing transmission and reception in a wideband wider than the bandwidth of six RBs on the basis of techniques for narrowband such as Category M1 has not been proposed yet.

The invention is made in consideration of the above-mentioned circumstances and an object thereof is to provide a technique for enabling a user apparatus supporting narrowband communication to perform wideband communication in a radio communication system which supports the narrowband communication.

Means for Solving Problem

According to a technique disclosed herein, there is provided a user apparatus in a radio communication system including a base station and the user apparatus, the user apparatus including: a receiver unit configured to receive, from the base station, first designation information for designating a resource group including a plurality of resources each having a bandwidth of a predetermined number of resource blocks and second designation information for designating allocation resources in the resource group; and a communication unit configured to perform data communication using the allocation resources designated by the second designation information in the resource group designated by the first designation information.

Effect of the Invention

According to the disclosed technique, it is possible to provide a technique for enabling a user apparatus supporting narrowband communication to perform wideband communication in a radio communication system which supports the narrowband communication.

