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1. (WO2017150601) USER DEVICE AND RANDOM ACCESS METHOD

Pub. No.:    WO/2017/150601    International Application No.:    PCT/JP2017/008083
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: H04W 74/08
Applicants: NTT DOCOMO, INC.
株式会社NTTドコモ
Inventors: TAKAHASHI, Hideaki
高橋 秀明
UCHINO, Tooru
内野 徹
HAPSARI, Wuri Andarmawanti
ハプサリ ウリ アンダルマワンティ
Title: USER DEVICE AND RANDOM ACCESS METHOD
Abstract:
Provided is a user device for communicating with a base station in a wireless communication system provided with the base station and the user device, wherein the user device is provided with: a selection unit for selecting a random access signal group from among a plurality of random access signal groups by comparing the size of a message transmitted on a prescribed logical channel with a prescribed threshold value, and selecting a random access signal from the random access signal group; and a transmission unit for transmitting the random access signal selected by the selection unit to the base station, the transmission unit transmitting the message on the prescribed logical channel using a resource allocated by a response from the base station to the random access signal.