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1. (WO2013145885) WIRELESS BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/145885 International Application No.: PCT/JP2013/053031
Publication Date: 03.10.2013 International Filing Date: 08.02.2013
IPC:
H04W 16/08 (2009.01) ,H04B 7/06 (2006.01) ,H04B 7/10 (2006.01) ,H04J 11/00 (2006.01) ,H04J 99/00 (2009.01) ,H04W 16/28 (2009.01) ,H04W 88/08 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
16
Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
02
Resource partitioning among network components, e.g. reuse partitioning
06
Hybrid resource partitioning, e.g. channel borrowing
08
Load shedding arrangements
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
04
using a plurality of spaced independent aerials
06
at transmitting station
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
10
using a single aerial system characterised by its polarisation or directive properties, e.g. polarisation diversity, direction diversity
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
11
Orthogonal multiplex systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
99
Subject matter not provided for in other groups of this subclass
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
16
Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
24
Cell structures
28
using beam steering
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
88
Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
08
Access point devices
Applicants: NTT DOCOMO, INC.[JP/JP]; 11-1, Nagatacho 2-chome, Chiyoda-ku, Tokyo 1006150, JP
Inventors: INOUE, Yuki; JP
NAGATA, Satoshi; JP
NAKAMURA, Takehiro; JP
Agent: AOKI, Hiroyoshi; 5F, JS Ichigaya Bldg., 5-1, Goban-cho, Chiyoda-ku, Tokyo 1020076, JP
Priority Data:
2012-08108530.03.2012JP
Title (EN) WIRELESS BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD
(FR) STATION DE BASE SANS FIL, SYSTÈME DE COMMUNICATION SANS FIL, ET PROCÉDÉ DE COMMUNICATION SANS FIL
(JA) 無線基地局、無線通信システム及び無線通信方法
Abstract:
(EN) The purpose of the present invention is to effectively utilize a wireless resource in a VSEC for outputting a plurality of beams that have different tilt angles and performing sectoring in the vertical direction. A method for wireless communication between a wireless base station for outputting a plurality of beams that have different tilt angles and forming a plurality of cells sectored in the vertical direction, and a user terminal wirelessly connected to the wireless base station, wherein the method comprises a step for the wireless base station to acquire information pertaining to the communication capacity of each of the cells, and a step for controlling the transmission power and/or the vertical plane beam width of each of the cells and setting the respective coverage area of each of the cells so as to reduce the difference between the communication capacity of each of the cells.
(FR) La présente invention a pour objectif d'utiliser efficacement une ressource sans fil dans un VSEC afin de délivrer en sortie une pluralité de faisceaux ayant des angles d'inclinaison différents et d'exécuter un découpage en secteurs dans le sens vertical. Afin d'atteindre l'objectif visé, la présente invention se rapporte à un procédé adapté pour exécuter une communication sans fil entre une station de base sans fil, qui est utilisée afin de délivrer en sortie une pluralité de faisceaux ayant des angles d'inclinaison différents et afin de former une pluralité de cellules découpées en secteurs dans le sens vertical, et un terminal d'utilisateur qui est connecté à la station de base sans fil d'une manière sans fil. Le procédé selon l'invention comprend : une étape au cours de laquelle la station de base sans fil acquiert des informations relatives à la capacité de communication de chacune des cellules ; et une étape consistant à contrôler la puissance de transmission et/ou la largeur de faisceau sur le plan vertical de chacune des cellules, et à définir la zone de couverture respective de chacune des cellules de sorte à réduire la différence entre la capacité de communication de chacune des cellules.
(JA)  チルト角が異なる複数のビームを出力して垂直方向にセクタ化するVSECにおいて、無線リソースを有効活用すること。チルト角が異なる複数のビームを出力して垂直方向にセクタ化される複数のセルを形成する無線基地局と、無線基地局に無線接続するユーザ端末との無線通信方法であって、無線基地局が、複数のセルそれぞれの通信容量に関する情報を取得する工程と、複数のセルそれぞれの通信容量の差が小さくなるように、各セルの垂直面ビーム幅及び/又は送信電力をそれぞれ制御して、各セルのカバレッジエリアをそれぞれ設定する工程とを設ける。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)