JP2012506198A - 直交周波数分割多重システムのプリアンブル送受信装置及び方法 - Google Patents
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- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2643—Modulators using symbol repetition, e.g. time domain realization of distributed FDMA
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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
- H04L27/2647—Arrangements specific to the receiver only
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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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2692—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver
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- 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
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
Description
102 第2チャネル
103 プリアンブル
104 プリアンブル
105 放送データ
106 放送データ
107 放送データ
108 放送データ
109 放送データ
Claims (14)
- プリアンブル送信方法において、
制御情報を1つ以上のFECブロックに符号化し変調する段階と、
各FECブロックの前方部にヘッダーを挿入する段階と、
前記ヘッダーを含む少なくとも1つのFECブロックを含むプリアンブルブロックを生成する段階と、 前記プリアンブルブロックを送信する段階とを含み、
前記プリアンブルブロックは、前記ヘッダーを含む前記FECブロックの少なくとも一部分の循環繰り返しで満たされる
ことを特徴とするプリアンブル送信方法。 - 前記ヘッダーは、既知のシーケンスを基礎にして生成されることを特徴とする請求項1に記載のプリアンブル送信方法。
- 前記既知のシーケンスは、擬似雑音シーケンス(pseudo noise sequence)であることを特徴とする請求項2に記載のプリアンブル送信方法。
- 前記1つ以上のFECブロックは、同一の長さを有することを特徴とする請求項1に記載のプリアンブル送信方法。
- 前記ヘッダーは、前記プリアンブルに相当する長さ情報を含むことを特徴とする請求項1に記載のプリアンブル送信方法。
- プリアンブル受信方法において、
受信帯域内でコードブロックを検出する段階と、
前記コードブロックが繰り返されれば、前記繰り返されるコードブロックを結合する段階と、
前記コードブロックから制御情報を抽出する段階と、
受信したデータ信号を前記制御情報に基礎して復号化する段階と、を含むプリアンブル受信方法。 - 前記受信帯域内でコードブロックを検出する段階は、
前記受信帯域内で既知のシーケンスを検出する段階と、
前記既知のシーケンスを利用して前記コードブロックの開始位置及び長さを計算する段階と、を含むことを特徴とする請求項6に記載のプリアンブル受信方法。 - プリアンブル送信装置において、
制御情報を有する少なくとも1つのFECブロックを生成する符号変調部(encoder)と、
ヘッダーを有する少なくとも1つのFECブロックを含むプリアンブルブロックを生成する生成部と、
前記生成されたプリアンブルブロックを送信する送信部とを含み、
前記プリアンブルブロックは、前記ヘッダーを含む前記FECブロックの少なくとも一部分の循環繰り返しで満たされる
プリアンブル送信装置。 - 前記FECブロックの前方部に挿入されるシーケンスを生成するシーケンス生成部をさらに含むことを特徴とする請求項8に記載のプリアンブル送信装置。
- 前記シーケンスは、擬似雑音シーケンスであることを特徴とする請求項9に記載のプリアンブル送信装置
- 前記1つ以上のFECブロックは、同一の長さを有することを特徴とする請求項8に記載のプリアンブル送信装置
- 前記ヘッダーは、前記プリアンブルに相当する長さ情報を含むことを特徴とする請求項8に記載のプリアンブル送信装置
- プリアンブル受信装置において、
コードブロックが既設定の受信帯域内で繰り返される場合、前記繰り返されるコードブロックを結合した後、前記受信帯域内の前記コードブロックから制御情報を抽出する制御情報抽出器と、
受信されるデータ信号を前記制御情報に基礎して復号化するデータ抽出器と、を含むプリアンブル受信装置。 - 前記受信帯域内で既知のシーケンスを検出し、前記既知のシーケンスを基にして前記コードブロックの開始位置及び長さを計算するシーケンス検出器をさらに含むことを特徴とする請求項13に記載のプリアンブル受信装置。
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KR10-2008-0102501 | 2008-10-20 | ||
KR1020080102501A KR101518346B1 (ko) | 2008-10-20 | 2008-10-20 | 직교주파수분할다중 시스템에서 프리엠블 송수신 장치 및 방법 |
PCT/KR2009/006057 WO2010047513A2 (en) | 2008-10-20 | 2009-10-20 | Preamble transmission and reception method and apparatus for ofdm system |
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AU2009307247B2 (en) | 2015-07-16 |
US9705724B2 (en) | 2017-07-11 |
EP2178240A3 (en) | 2014-12-24 |
US20150288552A1 (en) | 2015-10-08 |
WO2010047513A3 (en) | 2010-07-29 |
AU2009307247A1 (en) | 2010-04-29 |
JP5620389B2 (ja) | 2014-11-05 |
US9065615B2 (en) | 2015-06-23 |
WO2010047513A2 (en) | 2010-04-29 |
EP2178240B1 (en) | 2020-12-02 |
KR20100043458A (ko) | 2010-04-29 |
KR101518346B1 (ko) | 2015-05-08 |
CN102187608B (zh) | 2015-05-20 |
EP2178240A2 (en) | 2010-04-21 |
WO2010047513A4 (en) | 2010-09-16 |
CN102187608A (zh) | 2011-09-14 |
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