JP4256410B2 - 無線通信装置および送信方法 - Google Patents
無線通信装置および送信方法 Download PDFInfo
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- JP4256410B2 JP4256410B2 JP2006205088A JP2006205088A JP4256410B2 JP 4256410 B2 JP4256410 B2 JP 4256410B2 JP 2006205088 A JP2006205088 A JP 2006205088A JP 2006205088 A JP2006205088 A JP 2006205088A JP 4256410 B2 JP4256410 B2 JP 4256410B2
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- frequency
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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
- H04L5/0016—Time-frequency-code
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J4/00—Combined time-division and frequency-division multiplex systems
-
- 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
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
-
- 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
- H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
-
- 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
Description
マッピング部504は、制御部507のコントローラ512から通知された周波数サブキャリア及びタイムスロット(データシンボル)に送信シンボルをマッピングし、結果をマルチキャリア送信シンボルとしてスクランブル部503へ出力する。
Claims (2)
- 複数の送信シンボルを生成する第1の生成手段と、
各送信シンボルから、当該送信シンボルを複製して、予め与えられた数の送信シンボル群を生成する第2の生成手段と、
タイムスロット数M(Mは2以上の正の整数)及び周波数サブキャリア数N(Nは2以上の正の整数)のフレーム内に、前記送信シンボル群を、タイムスロット数P(Pは1以上M以下の整数)及び周波数サブキャリア数Q(Qは1以上N以下の整数)の時間及び周波数領域単位に割り当てる割当手段と、
前記フレームのタイムスロット毎に、各周波数サブキャリアに割り当てられた各送信シンボルに対して乗算されるN個の要素からなる符号系列を、タイムスロット毎に周波数サブキャリア数Qだけ循環シフトしながら、各タイムスロットの各周波数サブキャリアに割り当てられた送信シンボルに乗算する符号乗算手段と、
前記符号系列が乗算された各送信シンボル群をマルチキャリア変調して送信する送信手段と、
を具備したことを特徴とする無線通信装置。 - 複数の送信シンボルを生成する第1の生成ステップと、
各送信シンボルから、当該送信シンボルを複製して、予め与えられた数の送信シンボル群を生成する第2の生成ステップと、
タイムスロット数M(Mは2以上の正の整数)及び周波数サブキャリア数N(Nは2以上の正の整数)のフレーム内に、前記送信シンボル群を、タイムスロット数P(Pは1以上M以下の整数)及び周波数サブキャリア数Q(Qは1以上N以下の整数)の時間及び周波数領域単位に割り当てる割当ステップと、
前記フレームのタイムスロット毎に、各周波数サブキャリアに割り当てられた各送信シンボルに対して乗算されるN個の要素からなる符号系列を、タイムスロット毎に周波数サブキャリア数Qだけ循環シフトしながら、各タイムスロットの各周波数サブキャリアに割り当てられた送信シンボルに乗算する符号乗算ステップと、
前記符号系列が乗算された各送信シンボル群をマルチキャリア変調して送信する送信ステップと、
を含む送信方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006205088A JP4256410B2 (ja) | 2006-07-27 | 2006-07-27 | 無線通信装置および送信方法 |
US11/827,557 US7869531B2 (en) | 2006-07-27 | 2007-07-12 | Wireless communication apparatus, wireless communication system, and transmission method |
US12/956,579 US8406327B2 (en) | 2006-07-27 | 2010-11-30 | Wireless communication apparatus, wireless communication system, and transmission method |
US13/775,881 US9337968B2 (en) | 2006-07-27 | 2013-02-25 | Wireless communication apparatus, wireless communication system, and transmission method |
Applications Claiming Priority (1)
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---|---|---|---|
JP2006205088A JP4256410B2 (ja) | 2006-07-27 | 2006-07-27 | 無線通信装置および送信方法 |
Publications (2)
Publication Number | Publication Date |
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JP2008035100A JP2008035100A (ja) | 2008-02-14 |
JP4256410B2 true JP4256410B2 (ja) | 2009-04-22 |
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JP2006205088A Active JP4256410B2 (ja) | 2006-07-27 | 2006-07-27 | 無線通信装置および送信方法 |
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US (3) | US7869531B2 (ja) |
JP (1) | JP4256410B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4256410B2 (ja) * | 2006-07-27 | 2009-04-22 | 株式会社東芝 | 無線通信装置および送信方法 |
JP4410267B2 (ja) * | 2007-03-27 | 2010-02-03 | 株式会社東芝 | 無線通信方法と装置 |
JP5385513B2 (ja) * | 2007-06-18 | 2014-01-08 | 富士通モバイルコミュニケーションズ株式会社 | ディジタル通信システム、ディジタル無線送信装置、ディジタル無線受信装置 |
US8848913B2 (en) * | 2007-10-04 | 2014-09-30 | Qualcomm Incorporated | Scrambling sequence generation in a communication system |
US8588147B2 (en) * | 2007-11-21 | 2013-11-19 | Samsung Electronics Co., Ltd. | Method and system for subcarrier division duplexing |
US8397126B2 (en) * | 2009-07-06 | 2013-03-12 | Intel Corporation | Systems and methods for channel coding of wireless communication |
KR20130001013A (ko) * | 2011-06-24 | 2013-01-03 | 삼성전자주식회사 | 통신 시스템의 데이터 송수신 방법 및 장치 |
US9119144B2 (en) | 2013-02-25 | 2015-08-25 | Qualcomm Incorporated | Method and apparatus for generation of balanced weight preamble sequences |
US8798221B1 (en) | 2013-03-15 | 2014-08-05 | Qualcomm Incorporated | Method and apparatus for efficient acquisition of preambles with enhanced interference mitigation |
US10298355B2 (en) * | 2017-02-28 | 2019-05-21 | Corning Incorporated | Supporting cooperative transmission in massive multiple-input multiple-output (MIMO) systems |
JP7074195B2 (ja) * | 2018-01-10 | 2022-05-24 | 富士通株式会社 | 上りリンク送信タイミングアドバンスの取得方法、装置及び通信システム |
WO2019144405A1 (en) | 2018-01-29 | 2019-08-01 | Zte Corporation | Method and apparatus for generating spreading sequence codebooks |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001204217A (ja) | 2000-01-24 | 2001-07-31 | Mitsubishi Agricult Mach Co Ltd | コンバインの刈取部昇降装置 |
JP3553038B2 (ja) | 2000-11-06 | 2004-08-11 | 株式会社エヌ・ティ・ティ・ドコモ | 信号送信方法、信号受信方法、送信装置、受信装置および記録媒体 |
TWI248317B (en) * | 2001-08-30 | 2006-01-21 | Ntt Docomo Inc | Radio transmission system and method, and transmitter apparatus and receiver apparatus used in the radio transmission system |
US20030081538A1 (en) * | 2001-10-18 | 2003-05-01 | Walton Jay R. | Multiple-access hybrid OFDM-CDMA system |
WO2004021616A1 (ja) | 2002-08-28 | 2004-03-11 | Fujitsu Limited | 送受信装置及び送受信方法 |
US7418042B2 (en) * | 2003-09-17 | 2008-08-26 | Atheros Communications, Inc. | Repetition coding for a wireless system |
US7876806B2 (en) * | 2005-03-24 | 2011-01-25 | Interdigital Technology Corporation | Orthogonal frequency division multiplexing-code division multiple access system |
JP2007300217A (ja) * | 2006-04-27 | 2007-11-15 | Toshiba Corp | Ofdm信号の送信方法、ofdm送信機及びofdm受信機 |
JP4256410B2 (ja) * | 2006-07-27 | 2009-04-22 | 株式会社東芝 | 無線通信装置および送信方法 |
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2006
- 2006-07-27 JP JP2006205088A patent/JP4256410B2/ja active Active
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2007
- 2007-07-12 US US11/827,557 patent/US7869531B2/en active Active
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2010
- 2010-11-30 US US12/956,579 patent/US8406327B2/en active Active
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2013
- 2013-02-25 US US13/775,881 patent/US9337968B2/en active Active
Also Published As
Publication number | Publication date |
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JP2008035100A (ja) | 2008-02-14 |
US20080025433A1 (en) | 2008-01-31 |
US8406327B2 (en) | 2013-03-26 |
US7869531B2 (en) | 2011-01-11 |
US20110069781A1 (en) | 2011-03-24 |
US20130163402A1 (en) | 2013-06-27 |
US9337968B2 (en) | 2016-05-10 |
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