JPWO2011126025A1 - 基地局装置、移動局装置及び参照信号送信方法 - Google Patents
基地局装置、移動局装置及び参照信号送信方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
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Abstract
Description
(式1)
(式2)
(式3)
(式4)
Claims (9)
- 隣接セルのCSI(Channel State Information)−RSに関するパラメータとして前記隣接セルのセルID、CSI−RSの位置及び送信電力を取得する取得手段と、前記パラメータを含む信号を生成する生成手段と、前記生成した信号を下りリンクで送信する送信手段とを具備することを特徴とする基地局装置。
- 前記生成手段は、前記パラメータとして、前記隣接セルのCSI−RSがマッピングされるリソースエレメントに対応するリソースエレメントをヌルとするミューティングのオン/オフ又は周期を含む信号を生成することを特徴とする請求項1記載の基地局装置。
- 前記生成手段は、前記パラメータとして、前記ミューティングによりヌルとされるリソースエレメントの送信電力だけ増幅したCSI−RSに対する送信電力のオフセット量を含む信号を生成することを特徴とする請求項2記載の基地局装置。
- サービングセルから隣接セルのCSI−RSに関するパラメータとして前記隣接セルのセルID、CSI−RSの位置及び送信電力を含む信号を受信する受信手段と、前記受信した信号に含まれる前記隣接セルのセルID又はCSI−RSの位置及び送信電力に基づいてCSI−RSを特定して前記隣接セルの伝播路状態を測定する測定手段とを具備することを特徴とする移動局装置。
- 前記測定手段は、前記セルIDに関連付けられたCSI−RSの系列と、前記受信した信号に含まれる前記CSI−RSの位置及び送信電力とからCSI−RSを特定して前記隣接セルの伝搬路状態を測定することを特徴とする請求項4記載の移動局装置。
- 前記測定手段は、前記セルIDに関連付けられたCSI−RSの系列及び位置と、前記受信した信号に含まれるCSI−RSの位置及び送信電力とからCSI−RSを特定して前記隣接セルのCQIを測定することを特徴とする請求項4記載の移動局装置。
- 前記受信手段は、前記パラメータとして、前記サービングセル及び隣接セルにて相手側セルのCSI−RSがマッピングされるリソースエレメントに対応するリソースエレメントをヌルとするミューティングのオン/オフ又は周期を含む信号を受信し、前記測定手段は、前記ミューティングによりヌルとされるリソースエレメントの干渉成分を推定して前記サービングセル及び隣接セルの信号対雑音電力値を測定することを特徴とする請求項4記載の移動局装置。
- 前記受信手段は、前記パラメータとして、前記ミューティングによりヌルとされるリソースエレメントの送信電力だけ増幅したCSI−RSに対する送信電力のオフセット量を含む信号を受信し、前記測定手段は、前記送信電力のオフセット量を反映した送信電力のCSI−RSに基づいて前記サービングセル及び隣接セルのCQIを測定することを特徴とする請求項7記載の移動局装置。
- サービングセルに設置された基地局装置において、隣接セルのCSI−RSに関するパラメータとして前記隣接セルのセルID、CSI−RSの位置及び送信電力を取得するステップと、前記パラメータを含む信号を生成するステップと、前記生成した信号を下りリンクで送信するステップとを具備することを特徴とする参照信号送信方法。
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JP2012509673A JP5684237B2 (ja) | 2010-04-05 | 2011-04-05 | 基地局装置、移動局装置及び参照信号送信方法 |
PCT/JP2011/058643 WO2011126025A1 (ja) | 2010-04-05 | 2011-04-05 | 基地局装置、移動局装置及び参照信号送信方法 |
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US (1) | US9408085B2 (ja) |
EP (1) | EP2557834B1 (ja) |
JP (1) | JP5684237B2 (ja) |
KR (1) | KR20130023212A (ja) |
CN (1) | CN102934476B (ja) |
BR (1) | BR112012025327A2 (ja) |
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WO (1) | WO2011126025A1 (ja) |
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US20130077518A1 (en) | 2013-03-28 |
BR112012025327A2 (pt) | 2016-06-28 |
CN102934476B (zh) | 2016-07-06 |
EP2557834B1 (en) | 2018-03-21 |
JP5684237B2 (ja) | 2015-03-11 |
CN102934476A (zh) | 2013-02-13 |
MX2012011501A (es) | 2012-11-29 |
WO2011126025A1 (ja) | 2011-10-13 |
EP2557834A1 (en) | 2013-02-13 |
EP2557834A4 (en) | 2017-07-19 |
KR20130023212A (ko) | 2013-03-07 |
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