JP4430103B2 - 直交周波数分割多重接続通信システムにおける上りリンク応答情報の伝送方法及び装置 - Google Patents
直交周波数分割多重接続通信システムにおける上りリンク応答情報の伝送方法及び装置 Download PDFInfo
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
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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
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1692—Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
-
- 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Transmitters (AREA)
Description
110 チャンネル符号器
120 ノンコヒーレント変調器
130 IFFT器
200 受信機
210 チャンネル復号器
220 ノンコヒーレント復調器
230 FFT器
Claims (18)
- 直交周波数分割多重接続方式を使用する通信システムにおける上りリンク応答(ACK)情報の伝送方法であって、
下りリンクパケット状態を考慮して伝送しようとする上りリンクACK情報を生成するステップと、
前記上りリンクACK情報をコードワードにチャンネル符号化するステップと、
前記コードワードに対応する複数の変調シンボルを決定するステップと、
所定のサブキャリアに割り当てられた前記変調シンボルを伝送するステップと、を含み、
前記変調シンボルは、下記表1からACKベクトルインデックスによって定義され、
- 前記変調シンボルの各々は、QPSK変調シンボルであることを特徴とする請求項1に記載の伝送方法。
- 前記ACKベクトルインデックスは、チャンネル品質情報(CQI)変調パターンの一部を用いて設定されることを特徴とする請求項1に記載の伝送方法。
- 前記タイルにおける前記変調シンボルは、所定の位置の少なくとも1本のサブキャリアに割り当てられ、パイロットシンボルは、残りのサブキャリアに割り当てられることを特徴とする請求項1に記載の伝送方法。
- 直交周波数分割多重接続方式を使用する通信システムにおける上りリンク応答(ACK)情報の受信方法であって、
送信機から受け取った信号に対して高速フーリエ変換(FFT)を行い、所定のサブキャリアに割り当てられた複数の変調シンボルを出力するステップと、
前記複数の変調シンボルに対応する上りリンクACK情報を決定するステップと、を含み、
前記複数の変調シンボルは、下記表3のように、ACKベクトルインデックスによって定義され、
ことを特徴とする受信方法。 - 前記タイルにおける前記変調シンボルは、所定の位置の少なくとも1本のサブキャリアに割り当てられ、パイロットシンボルは、残りのサブキャリアに割り当てられることを特徴とする請求項7に記載の受信方法。
- 前記決定ステップは、
前記変調シンボルの前記タイルの各々に対して、相関値に対する絶対値の自乗を計算するステップと、
各ACKビットに対して、前記タイルの相関値に対する絶対値の自乗の和を計算するステップと、
前記上りリンクACK情報として、前記計算された絶対値の自乗の和が最大となるACKビットを選択するステップと、
を含むことを特徴とする請求項7に記載の受信方法。 - 直交周波数分割多重接続方式を使用する通信システムにおける上りリンク応答(ACK)情報の伝送装置であって、
下りリンクパケット状態を考慮して伝送しようとする上りリンクACK情報を、前記上りリンクACK情報に対応するコードワードにチャンネル符号化するチャンネル符号器と、
前記コードワードに対応する複数の変調シンボルを決定するノンコヒーレント変調器と、
所定のサブキャリアに割り当てられた変調シンボルを伝送するために前記複数の変調シンボルに対して逆高速フーリエ変換(IFFT)を実行し、前記IFFT処理伝送信号を伝送する逆高速フーリエ変換器と、
を備え、
前記複数の変調シンボルは、下記表5のように、ACKベクトルインデックスによって定義され、
ことを特徴とする伝送装置。 - 前記タイルにおける前記変調シンボルは、所定の位置の少なくとも1本のサブキャリアに割り当てられ、パイロットシンボルは、残りのサブキャリアに割り当てられることを特徴とする請求項11に記載の伝送装置。
- 直交周波数分割多重接続方式を使用する通信システムにおける上りリンク応答(ACK)情報の受信装置であって、
送信機から受け取った信号に対して高速フーリエ変換(FFT)を行い、所定のサブキャリアに割り当てられた複数の変調シンボルを出力する高速フーリエ変換器と、
前記複数の変調シンボルに対応する上りリンクACK情報を決定する演算器と、
を備え、
前記変調シンボルは、下記表7のように、ACKベクトルインデックスによって定義され、
ことを特徴とする受信装置。 - 前記タイル群における、前記変調シンボルは、所定の位置の少なくとも1本のサブキャリアに割り当てられ、パイロットシンボルは、残りのサブキャリアに割り当てられることを特徴とする請求項15に記載の受信装置。
- 前記演算器は、
前記変調シンボルのタイルの各々に対して、相関値に対する絶対値の自乗を計算し、各ACKビットに対して、前記タイルの相関値に対する絶対値の自乗の和を計算し、前記上りリンクACK情報として、前記計算された絶対値の自乗の和が最大となるACKビットを選択する、
ことを特徴とする請求項15に記載の受信装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020040039385A KR100800795B1 (ko) | 2004-05-31 | 2004-05-31 | 통신 시스템에서 상향 링크 응답 정보 송/수신 방법 및 장치 |
PCT/KR2005/001630 WO2005117385A1 (en) | 2004-05-31 | 2005-05-31 | Method and apparatus for transmitting uplink acknowledgement information in an ofdma communication system |
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JP2007531386A JP2007531386A (ja) | 2007-11-01 |
JP4430103B2 true JP4430103B2 (ja) | 2010-03-10 |
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JP2007504896A Active JP4430103B2 (ja) | 2004-05-31 | 2005-05-31 | 直交周波数分割多重接続通信システムにおける上りリンク応答情報の伝送方法及び装置 |
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US (1) | US7586834B2 (ja) |
EP (1) | EP1603266B1 (ja) |
JP (1) | JP4430103B2 (ja) |
KR (1) | KR100800795B1 (ja) |
CN (2) | CN102523192B (ja) |
AU (1) | AU2005327461B8 (ja) |
CA (1) | CA2560462C (ja) |
RU (1) | RU2338326C2 (ja) |
WO (1) | WO2005117385A1 (ja) |
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