JP4510077B2 - 直交周波数分割多重接続通信システムにおける適応的アンテナシステムのためのプリアンブルシーケンス生成装置及び方法 - Google Patents
直交周波数分割多重接続通信システムにおける適応的アンテナシステムのためのプリアンブルシーケンス生成装置及び方法 Download PDFInfo
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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
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
- H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
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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
- H04L25/022—Channel estimation of frequency response
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
- H04J13/0048—Walsh
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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
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
-
- 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
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
-
- 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
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
-
- 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
- H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
- H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
-
- 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
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- 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
Description
102 第1のビーム
103 第2のビーム
201 ダウンリンクフレーム
202 アップリンクフレーム
500 データシンボル生成部
501 データビット生成器
502 符号器
503 インターリーバ
504 変調器
510 AASプリアンブルシーケンス生成部
511 パイロットシーケンス生成器
512 Walsh 符号生成器
513 Reserved サブキャリア位置選択器
514 乗算器
520 多重化器(MUX)
521 サブキャリアマッピング器
522 逆高速フーリエ変換(IFFT)器
523 並列/直列変換器
524 保護間隔挿入器
525 デジタル/アナログ変換器
526 無線周波数(RF)処理器
830 データシンボル生成部
831 データビット生成器
832 符号器
833 インターリーバ
834 変調器
840 AASプリアンブルシーケンス生成部
841 パイロットシーケンス生成器
842 DFT符号生成器
843 乗算器
850 多重化器(MUX)
851 サブキャリアマッピング器
852 IFFT器
853 並列/直列変換器
854 保護間隔挿入器
855 デジタル/アナログ変換器
856 RF処理器
Claims (6)
- 空間チャンネルを成す少なくとも一つのビームを使用する空間分割多重接続(SDMA)を支援する直交周波数分割多重接続(OFDMA)通信システムにおいて、プリアンブルシーケンスを形成する方法であって、
予め設定されたシーケンスを時間領域においてN FFT /9のk倍だけ循環シフトして適応的アンテナシステム(AAS)のためのプリアンブルを生成し、kは前記AASのためのビームインデックスであって、N FFT はFFTサイズである、ステップと、
前記プリアンブルを伝送するステップとを含み、
前記プリアンブルは、一つのビンを構成する一つのOFDMAシンボル内の9個の連続したサブキャリアを占有し、循環シフトされたシーケンスは、周波数領域における異なるプリアンブル間の直交性を保障するために各々の空間チャンネルに使用され、異なるビームのための異なるプリアンブルに適用される各々のシーケンスは、セル識別子(ID)に対応して選択される、ことを特徴とする方法。 - 前記通信システムは、複数の移動加入者端末機に割り当てられる複数のサブチャンネルを使用し、各々の前記サブチャンネルは複数のビンを含み、各々の前記ビンは周波数領域におけるn個の連続したサブキャリアを含む、請求項1に記載の方法。
- 空間チャンネルを成す少なくとも一つのビームを使用する空間分割多重接続(SDMA)を支援する直交周波数分割多重接続(OFDMA)通信システムにおいて、プリアンブルシーケンスを形成する装置であって、
予め設定されたシーケンスを時間領域においてN FFT /9のk倍だけ循環シフトして適応的アンテナシステム(AAS)のためのプリアンブルシーケンスを生成し、kは前記AASのためのビームインデックスであって、N FFT はFFTサイズである、プリアンブルシーケンス生成部と、
前記プリアンブルシーケンスを伝送する伝送部とを含み、
前記プリアンブルは、一つのビンを構成する一つのOFDMAシンボル内の9個の連続したサブキャリアを占有し、循環シフトされたシーケンスは、周波数領域における異なるプリアンブル間の直交性を保障するために各々の空間チャンネルに使用され、異なるビームのための異なるプリアンブルに適用される各々のシーケンスは、セル識別子(ID)に対応して選択される、ことを特徴とする装置。 - 前記通信システムは、複数の移動加入者端末機に割り当てられる複数のサブチャンネルを使用し、各々の前記サブチャンネルは複数のビンを含み、各々の前記ビンは周波数領域におけるn個の連続したサブキャリアを含む、請求項4に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20040029739 | 2004-04-28 | ||
PCT/KR2005/001240 WO2005107121A1 (en) | 2004-04-28 | 2005-04-28 | Method and apparatus for generating preamble sequence for adaptive antenna system in orthogonal frequency division multiple access communication system |
Publications (2)
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JP2007531384A JP2007531384A (ja) | 2007-11-01 |
JP4510077B2 true JP4510077B2 (ja) | 2010-07-21 |
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JP2007504894A Expired - Fee Related JP4510077B2 (ja) | 2004-04-28 | 2005-04-28 | 直交周波数分割多重接続通信システムにおける適応的アンテナシステムのためのプリアンブルシーケンス生成装置及び方法 |
Country Status (9)
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US (1) | US7567639B2 (ja) |
EP (1) | EP1592192B1 (ja) |
JP (1) | JP4510077B2 (ja) |
KR (1) | KR100670417B1 (ja) |
CN (1) | CN1951046B (ja) |
AU (1) | AU2005239262B2 (ja) |
CA (1) | CA2559814C (ja) |
RU (1) | RU2328826C1 (ja) |
WO (1) | WO2005107121A1 (ja) |
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CN1951046A (zh) | 2007-04-18 |
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JP2007531384A (ja) | 2007-11-01 |
CN1951046B (zh) | 2010-07-07 |
US7567639B2 (en) | 2009-07-28 |
RU2328826C1 (ru) | 2008-07-10 |
KR20060047601A (ko) | 2006-05-18 |
CA2559814A1 (en) | 2005-11-10 |
KR100670417B1 (ko) | 2007-01-16 |
AU2005239262A1 (en) | 2005-11-10 |
AU2005239262B2 (en) | 2008-04-24 |
WO2005107121A1 (en) | 2005-11-10 |
EP1592192A2 (en) | 2005-11-02 |
EP1592192A3 (en) | 2013-04-03 |
EP1592192B1 (en) | 2019-01-16 |
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