WO2009044685A1 - 移動通信システムにおける基地局装置、基地局装置で使用される方法、cqi補正テーブル作成方法及び装置 - Google Patents

移動通信システムにおける基地局装置、基地局装置で使用される方法、cqi補正テーブル作成方法及び装置 Download PDF

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Publication number
WO2009044685A1
WO2009044685A1 PCT/JP2008/067521 JP2008067521W WO2009044685A1 WO 2009044685 A1 WO2009044685 A1 WO 2009044685A1 JP 2008067521 W JP2008067521 W JP 2008067521W WO 2009044685 A1 WO2009044685 A1 WO 2009044685A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
cqi
station device
correction table
sinr
Prior art date
Application number
PCT/JP2008/067521
Other languages
English (en)
French (fr)
Inventor
Hidekazu Taoka
Jianchi Zhu
Xiaoming She
Lan Chen
Original Assignee
Ntt Docomo, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ntt Docomo, Inc. filed Critical Ntt Docomo, Inc.
Priority to CN2008801092431A priority Critical patent/CN101810046B/zh
Priority to US12/680,585 priority patent/US8351386B2/en
Priority to EP08835917A priority patent/EP2182764A4/en
Publication of WO2009044685A1 publication Critical patent/WO2009044685A1/ja

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H04L1/0034—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter where the transmitter decides based on inferences, e.g. use of implicit signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0652—Feedback error handling
    • H04B7/0656—Feedback error handling at the transmitter, e.g. error detection at base station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Abstract

　基地局装置は、ユーザ装置から報告されたＣＱＩを補正する補正手段と、補正後のＣＱＩに基づいてスケジューリングを行うスケジューラを有する。補正手段は、補正テーブルを用いて、報告されたＣＱＩが悪ければ小さく、良ければ大きく減らすように補正する。補正テーブルの作成方法は、ｎ－１より少ない干渉ユーザ数を考慮した場合の第１のＳＩＮＲと、ｎ－１に等しい干渉ユーザ数を考慮した場合の第２のＳＩＮＲとを求め、第１のＳＩＮＲに対する第２のＳＩＮＲの分布状況を調べる。当該方法は、分布状況に基づいて、第１及び第２のＳＩＮＲの対応関係を決定し、補正テーブルを作成する。
PCT/JP2008/067521 2007-10-01 2008-09-26 移動通信システムにおける基地局装置、基地局装置で使用される方法、cqi補正テーブル作成方法及び装置 WO2009044685A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008801092431A CN101810046B (zh) 2007-10-01 2008-09-26 移动通信系统中的基站装置、基站装置所使用的方法、信道质量指示符校正表生成方法和装置
US12/680,585 US8351386B2 (en) 2007-10-01 2008-09-26 Base station apparatus in mobile communication system, method for use in base station apparatus, and method and apparatus for generating CQI correction table
EP08835917A EP2182764A4 (en) 2007-10-01 2008-09-26 BASIC STATION DEVICE IN THE MOBILE COMMUNICATION SYSTEM AND ASSOCIATED METHOD, CQI CORRECTION PLAN CREATION PROCESS AND DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007258112A JP5222517B2 (ja) 2007-10-01 2007-10-01 補正テーブルを作成する方法及び装置
JP2007-258112 2007-10-01

Publications (1)

Publication Number Publication Date
WO2009044685A1 true WO2009044685A1 (ja) 2009-04-09

Family

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PCT/JP2008/067521 WO2009044685A1 (ja) 2007-10-01 2008-09-26 移動通信システムにおける基地局装置、基地局装置で使用される方法、cqi補正テーブル作成方法及び装置

Country Status (6)

Country Link
US (1) US8351386B2 (ja)
EP (2) EP2451235B1 (ja)
JP (1) JP5222517B2 (ja)
KR (1) KR20100063753A (ja)
CN (1) CN101810046B (ja)
WO (1) WO2009044685A1 (ja)

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WO2010103965A1 (ja) * 2009-03-09 2010-09-16 株式会社エヌ・ティ・ティ・ドコモ 無線基地局
WO2011006434A1 (en) * 2009-07-16 2011-01-20 Huawei Technologies Co., Ltd. System and method for adjusting downlink channel quality index in a wireless communications system
JP2012524481A (ja) * 2009-04-21 2012-10-11 ロックスター ビーアイディーシーオー，エルピー 無線通信ネットワークにおける基地局及びチャネル品質予測方法
CN102792753A (zh) * 2010-03-12 2012-11-21 京瓷株式会社 无线通信系统、高功率基站、低功率基站及无线通信方法
WO2013089191A1 (ja) * 2011-12-13 2013-06-20 京セラ株式会社 移動端末、無線通信システム、および無線通信方法

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US9119146B2 (en) * 2010-06-30 2015-08-25 Nokia Solutions And Networks Oy Scheduling of user terminals in communication network
JP5462144B2 (ja) * 2010-12-10 2014-04-02 株式会社Ｎｔｔドコモ 無線中継局装置、無線基地局装置及び無線通信方法
EP2614612A4 (en) * 2011-02-28 2017-03-29 NEC (China) Co., Ltd. Method and apparatus for modifying channel quality indication
US8681689B2 (en) * 2011-07-25 2014-03-25 Qualcomm Incorporated Adjusting a single-input and multiple-output (SIMO) channel quality indicator (CQI)
US10107917B2 (en) 2011-12-05 2018-10-23 Mediatek Inc. Method of inter-channel bias calibration in a GNSS receiver and related device
WO2013118409A1 (ja) * 2012-02-10 2013-08-15 日本電気株式会社 無線通信システム、基地局、通信方法
KR101994446B1 (ko) * 2012-08-06 2019-06-28 에스케이텔레콤 주식회사 기지국장치 및 기지국장치의 동작 방법
KR20140129623A (ko) * 2013-04-30 2014-11-07 삼성전자주식회사 무선 통신 시스템에서 채널 품질을 결정하는 방법 및 그 장치
JP6206490B2 (ja) * 2013-05-09 2017-10-04 富士通株式会社 通信システム、基地局、移動局、及び受信品質測定方法
CN105323862B (zh) * 2014-07-21 2020-02-07 深圳市中兴微电子技术有限公司 一种提高高速下行分组接入网络性能的方法及用户设备
CN111567079A (zh) * 2017-12-29 2020-08-21 是德科技新加坡(销售)私人有限公司 用于电信网络的测试装置以及用于测试电信网络的方法
CN110611900B (zh) * 2018-06-14 2021-03-12 大唐移动通信设备有限公司 一种mpdcch调度方法及装置

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
WO2010103965A1 (ja) * 2009-03-09 2010-09-16 株式会社エヌ・ティ・ティ・ドコモ 無線基地局
JP2012524481A (ja) * 2009-04-21 2012-10-11 ロックスター ビーアイディーシーオー，エルピー 無線通信ネットワークにおける基地局及びチャネル品質予測方法
WO2011006434A1 (en) * 2009-07-16 2011-01-20 Huawei Technologies Co., Ltd. System and method for adjusting downlink channel quality index in a wireless communications system
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WO2013089191A1 (ja) * 2011-12-13 2013-06-20 京セラ株式会社 移動端末、無線通信システム、および無線通信方法

Also Published As

Publication number Publication date
KR20100063753A (ko) 2010-06-11
EP2182764A4 (en) 2010-11-24
JP2009089191A (ja) 2009-04-23
EP2182764A1 (en) 2010-05-05
EP2451235B1 (en) 2013-07-10
CN101810046A (zh) 2010-08-18
US20100296462A1 (en) 2010-11-25
CN101810046B (zh) 2013-10-16
EP2451235A1 (en) 2012-05-09
US8351386B2 (en) 2013-01-08
JP5222517B2 (ja) 2013-06-26

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