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1. WO2016006450 - WIRELESS BASE STATION, USER TERMINAL AND WIRELESS COMMUNICATION SYSTEM

Publication Number WO/2016/006450
Publication Date 14.01.2016
International Application No. PCT/JP2015/068211
International Filing Date 24.06.2015
IPC
H04W 48/18 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction; Network selection; Access point selection
18Selecting a network or a communication service
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
H04W 24/10 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
10Scheduling measurement reports
H04W 48/16 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction; Network selection; Access point selection
16Discovering; Processing access restriction or access information
H04W 72/08 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
08based on quality criteria
CPC
H04B 17/318
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
30of propagation channels
309Measuring or estimating channel quality parameters
318Received signal strength
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 24/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
10Scheduling measurement reports ; ; Arrangements for measurement reports
H04W 36/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
H04W 36/0069
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
0005Control or signalling for completing the hand-off
0055Transmission and use of information for re-establishing the radio link
0069in case of dual connectivity, e.g. CoMP, decoupled uplink/downlink or carrier aggregation
H04W 48/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction
16Discovering, processing access restriction or access information
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
  • リ ミンジュ LI, Mingju
  • ワン ジン WANG, Jing
  • ジャン ユー JIANG, Yu
  • リュー リュー LIU, Liu
  • ジャン ホイリン JIANG, Huiling
Agents
  • 青木 宏義 AOKI, Hiroyoshi
Priority Data
2014-14351011.07.2014JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WIRELESS BASE STATION, USER TERMINAL AND WIRELESS COMMUNICATION SYSTEM
(FR) STATION DE BASE SANS FIL, TERMINAL UTILISATEUR ET SYSTÈME DE COMMUNICATION SANS FIL
(JA) 無線基地局、ユーザ端末及び無線通信システム
Abstract
(EN)
In order to suppress decreases in system resource use efficiency in Licensed-Assisted Access (LLA) systems using Listen Before Talk (LBT), a wireless base station according to one embodiment of the present invention communicates with user terminals capable of using licensed bands and unlicensed bands, and is characterized by comprising an acquisition unit for acquiring information relating to the amount of available time resources as computed from the results of LBT on unlicensed bands, and a control unit for controlling communications with the user terminal on unlicensed bands based on the information relating to the amount of available time resources.
(FR)
Afin d'éviter la diminution de l'efficacité d'utilisation des ressources système dans les systèmes Licensed-Assisted Access (LLA) utilisant l'accès multiple avec écoute de porteuse (LBT), une station de base sans fil selon un mode de réalisation de la présente invention communique avec des terminaux utilisateur pouvant utiliser des bandes sous licence et des bandes sans licence, et est caractérisée en ce qu'elle comprend une unité d'acquisition servant à acquérir des informations relatives à la quantité de ressources temporelles disponibles calculée à partir des résultats du LBT sur des bandes sans licence, ainsi qu'une unité de commande destinée à commander les communications avec le terminal utilisateur sur des bandes sans licence conformément aux informations relatives à la quantité de ressources temporelles disponibles.
(JA)
 LBTを適用するLAAシステムにおいて、システムのリソース利用効率の低下を抑制すること。本発明の一態様に係る無線基地局は、ライセンスバンド及びアンライセンスバンドを利用可能なユーザ端末と通信を行う無線基地局であって、アンライセンスバンドにおけるLBT(Listen Before Talk)の結果に基づいて算出された、使用可能な時間リソース量に関する情報を取得する取得部と、前記使用可能な時間リソース量に関する情報に基づいて、アンライセンスバンドにおける前記ユーザ端末の通信を制御する制御部と、を有することを特徴とする。
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