JP2007019770A - 送信装置及びマルチアンテナ送信装置 - Google Patents
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- 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
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- H—ELECTRICITY
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- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/13—Linear codes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
- H03M13/255—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with Low Density Parity Check [LDPC] codes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
- H03M13/2703—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques the interleaver involving at least two directions
- H03M13/2721—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques the interleaver involving at least two directions the interleaver involves a diagonal direction, e.g. by using an interleaving matrix with read-out in a diagonal direction
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2906—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using block codes
- H03M13/2909—Product codes
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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
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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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
- H04L1/0618—Space-time coding
- H04L1/0637—Properties of the code
- H04L1/0656—Cyclotomic systems, e.g. Bell Labs Layered Space-Time [BLAST]
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- 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
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Abstract
【解決手段】 送信データに対してブロック符号化処理を施してブロック符号化データを形成する符号化部11と、ブロック符号化データを変調してデータシンボルを形成する変調部15と、1つのデータシンボルが異なる符号化ブロックのブロック内符号化データが集まって構成されるように、ブロック符号化データを並べ換えて変調部15に供給する並べ換え部12とを設けたことにより、変調多値数を大きくした場合でも符号化ブロックのブロックサイズを変えることなく比較的簡易な構成によりバースト誤りを抑制できる送信装置10を実現できる。
【選択図】 図1
Description
図1に、本発明の実施の形態1に係る送信装置の構成を示す。送信装置10は送信データS1を符号化部11に入力する。符号化部11は、送信データS1に対してブロック符号化処理を施し、これにより得たブロック符号化データS2を並べ換え部12に送出する。本実施の形態の場合、符号化部11は、LDPC符号化処理を行うようになっている。
図8に、本発明の実施の形態2に係るマルチアンテナ送信装置の構成を示す。
本実施の形態では、マルチアンテナ送信装置でLDPC符号化を行う場合の具体的な形態を説明する。さらには、適応変調を行う場合の具体的な形態を説明する。
本実施の形態では、LDPC符号化後の最後のブロックデータの割り当て方の工夫を説明する。図25において、縦軸は周波数を示し、キャリア1からnを用いてデータを送信する。また横軸は時間を示す。
ここでは図26を用いて、本発明による符号化ブロックデータの複数シンボルへの均一割り当て方法との比較例として、従来一般的に行われている割り当て方法とその欠点について説明する。
なお、上述した実施の形態1では、一つの符号化部11を用いる場合を前提条件として説明が、別の実施の形態として、システムが、符号化率R=1/2、2/3、ブロック長が980ビットの符号をサポートしている場合も、符号化率R=1/2、2/3において、別々に実施すれば、上述の実施の形態を同様に実施することができる。また、システムが、符号化率R=1/2、2/3、ブロック長が980、1960ビットの符号をサポートしている場合も、それぞれの場合において、別々に実施すれば、上述の実施の形態と同様に実施することができる。
11、102A、102B、102 符号化部
12、104A、104B、104 並べ換え部
15、106A、106B 変調部
100、500、600 マルチアンテナ送信装置
Claims (4)
- 送信データに対してブロック符号化処理を施してブロック符号化データを形成する符号化手段と、
前記ブロック符号化データを変調して前記データシンボルを形成する変調手段と、
1つのデータシンボルが異なる符号化ブロックのブロック内符号化データが集まって構成されるように、前記ブロック符号化データを並べ換えて前記変調手段に供給する並べ換え手段と、
前記データシンボルを順次送信する送信手段と
を具備する送信装置。 - 前記変調手段は、適応的に変調多値数が可変とされており、
前記並べ換え手段は、前記変調手段の変調多値数が多くなるほど、1シンボルがより多くのブロックのブロック符号化データが集まって構成されるように、前記ブロック符号化データを並べ換える
請求項1に記載の送信装置。 - 前記符号化手段は、前記送信データに対してLDPC符号化処理を施す
請求項1又は請求項2に記載の送信装置。 - 複数のアンテナから同時に信号分離のためのプリアンブルを送信した後、これに続いて前記複数のアンテナから同時にデータシンボルを送信するマルチアンテナ送信装置であって、
送信データに対してブロック符号化処理を施してブロック符号化データを形成する符号化手段と、
前記ブロック符号化データを変調して前記データシンボルを形成する変調手段と、
1つのデータシンボルが異なる符号化ブロックのブロック内符号化データが集まって構成されるように、前記ブロック符号化データを並べ換えて前記変調手段に供給する並べ換え手段と、
前記データシンボルを前記複数のアンテナから順次送信する送信手段と
を具備するマルチアンテナ送信装置。
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005198177A JP4065283B2 (ja) | 2005-07-06 | 2005-07-06 | 送信方法 |
| PCT/JP2006/313334 WO2007004653A1 (ja) | 2005-07-06 | 2006-07-04 | 送信装置及びマルチアンテナ送信装置 |
| US11/994,624 US7676719B2 (en) | 2005-07-06 | 2006-07-04 | Transmitter apparatus and multiantenna transmitter apparatus |
| US12/688,658 US8010858B2 (en) | 2005-07-06 | 2010-01-15 | Transmitter apparatus and multiantenna transmitter apparatus |
| US13/190,158 US8219865B2 (en) | 2005-07-06 | 2011-07-25 | Transmitter apparatus |
| US13/493,721 US8453042B2 (en) | 2005-07-06 | 2012-06-11 | Modulator and modulation method |
| US13/872,787 US9059743B2 (en) | 2005-07-06 | 2013-04-29 | Transmission apparatus and reception apparatus |
| US14/678,389 US9374195B2 (en) | 2005-07-06 | 2015-04-03 | Transmission signal generating apparatus and method, and reception data generating apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005198177A JP4065283B2 (ja) | 2005-07-06 | 2005-07-06 | 送信方法 |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007235634A Division JP4583425B2 (ja) | 2007-09-11 | 2007-09-11 | 送信装置及び送信方法 |
| JP2007294926A Division JP4627079B2 (ja) | 2007-11-13 | 2007-11-13 | 変調器及び変調方法 |
| JP2007294927A Division JP4583431B2 (ja) | 2007-11-13 | 2007-11-13 | 変調器及び変調方法 |
| JP2007294928A Division JP4583432B2 (ja) | 2007-11-13 | 2007-11-13 | 変調器及び変調方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007019770A true JP2007019770A (ja) | 2007-01-25 |
| JP2007019770A5 JP2007019770A5 (ja) | 2007-10-18 |
| JP4065283B2 JP4065283B2 (ja) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005198177A Expired - Lifetime JP4065283B2 (ja) | 2005-07-06 | 2005-07-06 | 送信方法 |
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| Country | Link |
|---|---|
| US (6) | US7676719B2 (ja) |
| JP (1) | JP4065283B2 (ja) |
| WO (1) | WO2007004653A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007067726A (ja) * | 2005-08-30 | 2007-03-15 | Matsushita Electric Ind Co Ltd | 無線中継器、無線中継方法及び無線中継システム |
| WO2007108471A1 (ja) * | 2006-03-20 | 2007-09-27 | Matsushita Electric Industrial Co., Ltd. | 変調装置、復調装置、および変調方法 |
| JP2012528507A (ja) * | 2009-05-29 | 2012-11-12 | アルカテル−ルーセント | 複数フォーマットデータ用送信器 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5320829B2 (ja) * | 2008-06-09 | 2013-10-23 | 富士通株式会社 | 制御チャネル送信方法、及び無線通信装置 |
| EP2560311A1 (en) * | 2011-08-17 | 2013-02-20 | Panasonic Corporation | Cyclic-block permutations for spatial multiplexing with quasi-cyclic LDPC codes |
| CN109560892B (zh) * | 2013-12-27 | 2021-04-30 | 松下电器(美国)知识产权公司 | 发送方法、接收方法及发送装置、接收装置 |
| US9774354B2 (en) * | 2014-07-10 | 2017-09-26 | King Abdullah University Of Science And Technology | Generation of correlated finite alphabet waveforms using Gaussian random variables |
| US10992314B2 (en) * | 2019-01-21 | 2021-04-27 | Olsen Ip Reserve, Llc | Residue number systems and methods for arithmetic error detection and correction |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3545726B2 (ja) | 2001-02-27 | 2004-07-21 | 松下電器産業株式会社 | 受信側装置 |
| GB2380105B (en) | 2001-07-09 | 2003-12-10 | Samsung Electronics Co Ltd | Apparatus and method for symbol mapping tfci bits for a hard split mode in a cdma mobile communication system |
| JP3696191B2 (ja) | 2001-09-28 | 2005-09-14 | 株式会社東芝 | Ofdm送受信装置 |
| JP3836019B2 (ja) | 2001-11-21 | 2006-10-18 | 松下電器産業株式会社 | 受信装置、送信装置及び送信方法 |
| JP2003169039A (ja) | 2001-11-29 | 2003-06-13 | Matsushita Electric Ind Co Ltd | 送信装置、受信装置及び送受信方法 |
| JP3679775B2 (ja) | 2002-04-12 | 2005-08-03 | 松下電器産業株式会社 | マルチキャリア送信装置、マルチキャリア受信装置及びマルチキャリア送信方法 |
| US7139964B2 (en) * | 2002-05-31 | 2006-11-21 | Broadcom Corporation | Variable modulation with LDPC (low density parity check) coding |
| US7062700B2 (en) * | 2002-05-31 | 2006-06-13 | Broadcom Corporation | 16 QAM and 16 APSK TTCM (Turbo Trellis Coded Modulation) with minimum bandwidth efficiency of 3 bit/s/Hz using a rate 2/4 constituent encoder |
| JP2004021525A (ja) | 2002-06-14 | 2004-01-22 | Canon Inc | ネットワークサーバへの負荷テストシステム |
| AU2003247805A1 (en) * | 2002-07-03 | 2004-01-23 | Hughes Electronics Corporation | Encoding of low-density parity check (ldpc) codes using a structured parity check matrix |
| EP1392017B1 (en) * | 2002-08-21 | 2006-10-04 | Lucent Technologies Inc. | A MIMO radio telecommunication system using multilevel-coded modulation operative by iterative determination of soft estimates, and a corresponding method |
| JP3816470B2 (ja) | 2002-10-18 | 2006-08-30 | 株式会社日立国際電気 | 符号変調適応可変多重伝送方法及びその方法を用いた符号変調適応可変多重伝送装置 |
| EP1503535A4 (en) * | 2002-10-31 | 2011-07-06 | Panasonic Corp | TRANSMISSION DEVICE AND METHOD |
| WO2004049596A1 (ja) | 2002-11-26 | 2004-06-10 | Matsushita Electric Industrial Co., Ltd. | 通信方法及び送信装置、受信装置 |
| JP4091827B2 (ja) | 2002-11-26 | 2008-05-28 | 松下電器産業株式会社 | 無線送信装置および無線受信装置 |
| US7260764B2 (en) | 2002-11-26 | 2007-08-21 | Qualcomm Incorporated | Multi-channel transmission and reception with block coding in a communication system |
| KR100552669B1 (ko) | 2002-12-26 | 2006-02-20 | 한국전자통신연구원 | 층적 공간-시간 구조의 검파기를 갖는 다중 입출력시스템에 적용되는 적응 변복조 장치 및 그 방법 |
| US7453793B1 (en) * | 2003-04-10 | 2008-11-18 | Qualcomm Incorporated | Channel estimation for OFDM communication systems including IEEE 802.11A and extended rate systems |
| US7322005B2 (en) * | 2003-06-13 | 2008-01-22 | Broadcom Corporation | LDPC (Low Density Parity Check) coded modulation symbol decoding using non-Gray code maps for improved performance |
| KR100630177B1 (ko) * | 2004-02-06 | 2006-09-29 | 삼성전자주식회사 | 최대 다이버시티 이득을 가지는 시공간 저밀도 패리티검사 부호 부호화/복호화 장치 및 방법 |
-
2005
- 2005-07-06 JP JP2005198177A patent/JP4065283B2/ja not_active Expired - Lifetime
-
2006
- 2006-07-04 WO PCT/JP2006/313334 patent/WO2007004653A1/ja not_active Ceased
- 2006-07-04 US US11/994,624 patent/US7676719B2/en active Active
-
2010
- 2010-01-15 US US12/688,658 patent/US8010858B2/en active Active
-
2011
- 2011-07-25 US US13/190,158 patent/US8219865B2/en active Active
-
2012
- 2012-06-11 US US13/493,721 patent/US8453042B2/en active Active
-
2013
- 2013-04-29 US US13/872,787 patent/US9059743B2/en active Active
-
2015
- 2015-04-03 US US14/678,389 patent/US9374195B2/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007067726A (ja) * | 2005-08-30 | 2007-03-15 | Matsushita Electric Ind Co Ltd | 無線中継器、無線中継方法及び無線中継システム |
| WO2007108471A1 (ja) * | 2006-03-20 | 2007-09-27 | Matsushita Electric Industrial Co., Ltd. | 変調装置、復調装置、および変調方法 |
| JP2012528507A (ja) * | 2009-05-29 | 2012-11-12 | アルカテル−ルーセント | 複数フォーマットデータ用送信器 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100122145A1 (en) | 2010-05-13 |
| US8219865B2 (en) | 2012-07-10 |
| US20090044069A1 (en) | 2009-02-12 |
| US8010858B2 (en) | 2011-08-30 |
| US7676719B2 (en) | 2010-03-09 |
| US20130346832A1 (en) | 2013-12-26 |
| US20150215070A1 (en) | 2015-07-30 |
| US20110283160A1 (en) | 2011-11-17 |
| US8453042B2 (en) | 2013-05-28 |
| US20120254701A1 (en) | 2012-10-04 |
| US9059743B2 (en) | 2015-06-16 |
| JP4065283B2 (ja) | 2008-03-19 |
| WO2007004653A1 (ja) | 2007-01-11 |
| US9374195B2 (en) | 2016-06-21 |
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