JP2012522451A - 無線通信システムにおける信号送信方法及び装置 - Google Patents
無線通信システムにおける信号送信方法及び装置 Download PDFInfo
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- 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
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- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
-
- 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0075—Transmission of coding parameters to receiver
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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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
-
- 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
- H04W88/02—Terminal devices
-
- 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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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
【解決手段】前記方法は、R個の空間ストリームを生成し、前記R個の空間ストリームの各々は、情報ストリーム及び参照信号に基づいて生成される段階、前記R個の空間ストリーム及びプリコーディング行列に基づいてN個の送信ストリームを生成する段階(R<N)、前記N個の送信ストリームを少なくとも一つ以上のリソースブロックにマッピングする段階、及び前記少なくとも一つ以上のリソースブロックにマッピングされた前記N個の送信ストリームからN個の信号を生成し、前記N個の信号の各々をN個のアンテナの各々を介して送信する段階、を含む。
【選択図】図18
Description
Claims (9)
- 無線通信システムにおける基地局により実行される信号送信方法において、
R個の空間ストリームを生成し、前記R個の空間ストリームの各々は、情報ストリーム及び参照信号に基づいて生成される段階;
前記R個の空間ストリーム及びプリコーディング行列に基づいてN個の送信ストリームを生成する段階(R<N);
前記N個の送信ストリームを少なくとも一つ以上のリソースブロックにマッピングする段階;及び、
前記少なくとも一つ以上のリソースブロックにマッピングされた前記N個の送信ストリームからN個の信号を生成し、前記N個の信号の各々をN個のアンテナの各々を介して端末に送信する段階;を含み、
前記プリコーディング行列は、前記少なくとも一つ以上のリソースブロック及びプリコーディング帯域幅に基づいて決定され、
前記プリコーディング帯域幅は、同一プリコーディング行列が使われる帯域幅であることを特徴とする方法。 - 前記端末に前記プリコーディング帯域幅を指示するプリコーディング帯域幅情報を送信する段階をさらに含むことを特徴とする請求項1に記載の方法。
- 前記端末に前記少なくとも一つ以上のリソースブロックを指示するリソースブロック割当フィールドを含むダウンリンクグラントを送信する段階をさらに含むことを特徴とする請求項1に記載の方法。
- 前記ダウンリンクグラントは、前記プリコーディング帯域幅を指示するプリコーディング帯域幅情報をさらに含むことを特徴とする請求項3に記載の方法。
- 前記プリコーディング帯域幅情報は、上位階層シグナリングを介して送信されることを特徴とする請求項2に記載の方法。
- 前記端末にフィードバックサブバンドが決定されるフィードバック類型を設定する段階をさらに含み、
前記プリコーディング帯域幅は、前記フィードバックサブバンドと同じであることを特徴とする請求項1に記載の方法。 - 前記少なくとも一つ以上のリソースブロックは、第1のリソースブロックグループ及び第2のリソースブロックグループを含み、前記第1のリソースブロックグループ及び前記第2のリソースブロックグループの各々は、少なくとも一つ以上の周波数領域で連続されたリソースブロックを含み、前記第2のリソースブロックグループは、前記第1のリソースブロックグループと前記周波数領域で不連続され、
前記第1のリソースブロックグループ内では第1のプリコーディング行列が使われ、
前記第2のリソースブロックグループ内では第2のプリコーディング行列が使われることを特徴とする請求項1に記載の方法。 - 無線通信システムにおける端末により実行されるチャネル推定方法において、
同一プリコーディング行列が使われる帯域幅を指示するプリコーディング帯域幅情報を獲得する段階;
基地局から少なくとも一つ以上のリソースブロックを介してプリコーディングされた信号を受信する段階;及び、
前記プリコーディング帯域幅情報に基づいてチャネルを推定する段階;を含むことを特徴とする方法。 - N個のアンテナ;及び、
前記N個のアンテナと連結され、
同一プリコーディング行列が使われる帯域幅を指示するプリコーディング帯域幅情報を送信し、
R個の空間ストリームを生成し、前記R個の空間ストリームの各々は、情報ストリーム及び参照信号に基づいて生成され、
前記R個の空間ストリーム及びプリコーディング行列に基づいてN個の送信ストリームを生成し、
前記N個の送信ストリームを少なくとも一つ以上のリソースブロックにマッピングし、
前記少なくとも一つ以上のリソースブロックにマッピングされた前記N個の送信ストリームからN個の信号を生成し、前記N個の信号の各々を前記N個のアンテナの各々を介して送信し、
前記プリコーディング行列は、前記少なくとも一つ以上のリソースブロック及び前記プリコーディング帯域幅情報に基づいて決定されることを特徴とする信号送信装置。
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US16488509P | 2009-03-30 | 2009-03-30 | |
US61/164,885 | 2009-03-30 | ||
KR10-2010-0024043 | 2010-03-18 | ||
KR1020100024043A KR101753391B1 (ko) | 2009-03-30 | 2010-03-18 | 무선 통신 시스템에서 신호 전송 방법 및 장치 |
PCT/KR2010/001907 WO2010114269A2 (en) | 2009-03-30 | 2010-03-30 | Method and apparatus for transmitting signal in wireless communication system |
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JP5600343B2 JP5600343B2 (ja) | 2014-10-01 |
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US (3) | US9025620B2 (ja) |
EP (1) | EP2415183A4 (ja) |
JP (1) | JP5600343B2 (ja) |
KR (1) | KR101753391B1 (ja) |
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2010
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- 2010-03-30 CN CN201080014990.4A patent/CN102379091B/zh active Active
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Also Published As
Publication number | Publication date |
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US9025620B2 (en) | 2015-05-05 |
US20150207550A1 (en) | 2015-07-23 |
KR20100109387A (ko) | 2010-10-08 |
US20170070273A1 (en) | 2017-03-09 |
KR101753391B1 (ko) | 2017-07-04 |
EP2415183A2 (en) | 2012-02-08 |
US20120008587A1 (en) | 2012-01-12 |
WO2010114269A3 (en) | 2011-01-13 |
WO2010114269A2 (en) | 2010-10-07 |
JP5600343B2 (ja) | 2014-10-01 |
CN102379091B (zh) | 2015-01-14 |
US9520925B2 (en) | 2016-12-13 |
US9729218B2 (en) | 2017-08-08 |
CN102379091A (zh) | 2012-03-14 |
EP2415183A4 (en) | 2016-08-10 |
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