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1. WO2015141584 - USER TERMINAL, WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD

Publication Number WO/2015/141584
Publication Date 24.09.2015
International Application No. PCT/JP2015/057499
International Filing Date 13.03.2015
IPC
H04W 16/14 2009.1
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
H04W 24/10 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
10Scheduling measurement reports
H04W 28/04 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
04Error control
H04W 52/44 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
04Transmission power control
38TPC being performed in particular situations
44in connection with interruption of transmission
H04W 72/04 2009.1
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
CPC
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 52/38
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
38TPC being performed in particular situations
H04W 72/0413
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
0406involving control information exchange between nodes
0413in uplink direction of a wireless link, i.e. towards network
H04W 72/0453
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
044where an allocation plan is defined based on the type of the allocated resource
0453the resource being a frequency, carrier or frequency band
H04W 72/0473
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
044where an allocation plan is defined based on the type of the allocated resource
0473the resource being transmission power
H04W 72/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
12Dynamic; Wireless traffic scheduling ; ; Dynamically scheduled allocation on shared channel
14using a grant ; or specific; channel
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
  • 内野 徹 UCHINO, Tooru
  • 永田 聡 NAGATA, Satoshi
Agents
  • 青木 宏義 AOKI, Hiroyoshi
Priority Data
2014-05696719.03.2014JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) USER TERMINAL, WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD
(FR) TERMINAL D’UTILISATEUR, STATION DE BASE SANS FIL, ET PROCÉDÉ DE COMMUNICATION SANS FIL
(JA) ユーザ端末、無線基地局及び無線通信方法
Abstract
(EN) A wireless communication system (LTE-U) for operating LTE in an unlicensed band and capable of appropriately performing UL transmission control. A user terminal for communicating with a wireless base station using a licensed band and an unlicensed band, and having a detection unit for detecting a signal transmitted from another transmission point in the unlicensed band, a control unit for controlling the transmission of a UL signal in the unlicensed band on the basis of a UL transmission instruction transmitted from the wireless base station and the detection results from the detection unit, and a transmission unit for transmitting the UL signal, wherein the transmission unit transmits information pertaining to the detection results to the wireless base station by using the licensed band.
(FR) L'invention concerne un système de communication sans fil (LTE-U) qui peut faire fonctionner un LTE dans une bande sans licence et exécuter efficacement une commande de transmission UL. L’invention concerne également un terminal d'utilisateur pour communiquer avec une station de base sans fil au moyen d'une bande sous licence et d’une bande sans licence, et comprenant une unité de détection pour détecter un signal transmis depuis un autre point de transmission dans la bande sans licence, une unité de commande pour commander la transmission d'un signal UL dans la bande sans licence d’après une instruction de transmission UL transmise par la station de base sans fil et les résultats de détection par l'unité de détection, et une unité de transmission pour transmettre le signal UL, l'unité de transmission transmettant des informations relatives aux résultats de détection à la station de base sans fil au moyen de la bande sous licence.
(JA)  非ライセンスバンドでLTEを運用する無線通信システム(LTE-U)において、UL送信制御を適切に行うこと。ライセンスバンド及び非ライセンスバンドを用いて無線基地局と通信を行うユーザ端末であって、非ライセンスバンドにおいて他の送信ポイントから送信される信号の検出を行う検出部と、無線基地局から送信されるUL送信指示と、前記検出部の検出結果とに基づいて、非ライセンスバンドにおけるUL信号の送信を制御する制御部と、UL信号を送信する送信部と、を有し、前記送信部は、前記検出結果に関する情報をライセンスバンドを用いて無線基地局に送信する。
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