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1. WO2017030053 - RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD

Publication Number WO/2017/030053
Publication Date 23.02.2017
International Application No. PCT/JP2016/073472
International Filing Date 09.08.2016
IPC
H04W 72/04 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04Wireless resource allocation
H04W 16/14 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
14Spectrum sharing arrangements
CPC
H04L 5/0023
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0014Three-dimensional division
0023Time-frequency-space
H04L 5/0048
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
005of common pilots, i.e. pilots destined for multiple users or terminals
H04W 16/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
14Spectrum sharing arrangements ; between different networks
H04W 48/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction
08Access restriction or access information delivery, e.g. discovery data delivery
H04W 72/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
Applicants
  • 株式会社NTTドコモ NTT DOCOMO, INC. [JP]/[JP]
Inventors
  • 原田 浩樹 HARADA, Hiroki
  • 武田 一樹 TAKEDA, Kazuki
  • 永田 聡 NAGATA, Satoshi
Agents
  • 青木 宏義 AOKI, Hiroyoshi
  • 天田 昌行 AMADA, Masayuki
  • 守屋 芳隆 MORIYA, Yoshitaka
Priority Data
2015-16019914.08.2015JP
2015-18722324.09.2015JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD
(FR) STATION DE BASE RADIO, TERMINAL UTILISATEUR ET PROCÉDÉ DE COMMUNICATION RADIO
(JA) 無線基地局、ユーザ端末及び無線通信方法
Abstract
(EN)
The objective of the present invention is to make it possible for communication to be performed appropriately in a cell (such as an unlicensed band) in which listening is applied before transmission. This radio base station includes: a transmitting unit which, on the basis of listening results, transmits a detection/measurement signal including a first reference signal for channel state measurement; and a control unit which controls resource allocation for the detection/measurement signal. The control unit allocates the first reference signal in such a way that the first reference signal is extended in the time direction compared with an existing second reference signal for channel state measurement.
(FR)
L'objectif de la présente invention est de permettre à une communication d'être réalisée de façon appropriée dans une cellule (comme une bande sans licence) dans laquelle une écoute est appliquée avant la transmission. L'invention concerne une station de base radio qui comprend : une unité de transmission qui, sur la base de résultats d'écoute, transmet un signal de détection/mesure comprenant un premier signal de référence pour une mesure d'état de canal ; et une unité de commande qui commande l'attribution de ressources pour le signal de détection/mesure. L'unité de commande attribue le premier signal de référence de telle sorte que le premier signal de référence est étendu dans la direction temporelle par rapport à un second signal de référence existant pour une mesure d'état de canal.
(JA)
送信前にリスニングが適用されるセル(例えば、アンライセンスバンド)において、適切に通信を行うこと。チャネル状態を測定する第1の参照信号を含む検出測定用信号をリスニング結果に基づいて送信する送信部と、前記検出測定用信号のリソース割当てを制御する制御部と、を有し、前記制御部は、前記第1の参照信号を既存のチャネル状態測定用の第2の参照信号より時間方向に拡張して割当てる。
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