JP5926825B2 - 多重キャリア変調受信機におけるチャネル推定及びピーク対平均電力比低減 - Google Patents
多重キャリア変調受信機におけるチャネル推定及びピーク対平均電力比低減 Download PDFInfo
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- JP5926825B2 JP5926825B2 JP2015006231A JP2015006231A JP5926825B2 JP 5926825 B2 JP5926825 B2 JP 5926825B2 JP 2015006231 A JP2015006231 A JP 2015006231A JP 2015006231 A JP2015006231 A JP 2015006231A JP 5926825 B2 JP5926825 B2 JP 5926825B2
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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
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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
-
- 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
-
- 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
- H04L27/2614—Peak power aspects
- H04L27/2618—Reduction thereof using auxiliary subcarriers
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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
- H04L27/2614—Peak power aspects
- H04L27/262—Reduction thereof by selection of pilot symbols
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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
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding 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
-
- 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
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Mobile Radio Communication Systems (AREA)
Description
アダプティブコンステレーション拡張(ACE)のような追加的な既知の技術が適用され得る。最終的なリザーブされたトーン値を計算するプロセスは、多重PAPR低減技術を含む反復技術を介してもたらされ得る。
結論
Claims (8)
- 直交周波数分割多重化(OFDM)信号においてチャネル推定を実行するための方法であって、
パイロットパターンの一部となるリザーブされたトーンのトーン値を選択するステップであって、前記リザーブされたトーンのトーン値への信号ピークの投影を用いて低減信号を生成することと、前記低減信号をピークキャンセルに用いてピーク対平均電力比を低減することと、を含むステップと、
前記パイロットパターンの前記リザーブされたトーンのトーン値を用いてチャネル推定を実行するステップと、
を備え、
前記選択するステップは、所定のリザーブされたトーンのトーン値を用いることを含む、
方法。 - 前記選択するステップは、リザーブされたトーンのトーン値を動的に決定することを含む請求項1の方法。
- 前記リザーブされたトーンのトーン値は、受信機初期化プロセス間の反復プロセスによって動的に決定される請求項2の方法。
- 前記チャネル推定は、前記OFDM信号を受信するように構成された受信機で実行される請求項1の方法。
- 直交周波数分割多重化(OFDM)システムにおいてチャネル推定を実行することにおける使用のための装置であって、
伝送されたOFDM信号を受信するように構成された受信機と、
前記OFDM信号からパイロットシンボルを抽出するように構成されたパイロットシンボル抽出器と、
パイロットパターンの一部となるリザーブされたトーンのトーン値を選択し、前記リザーブされたトーンのトーン値への信号ピークの投影を用いて低減信号を生成し、前記低減信号をピークキャンセルに用いてピーク対平均電力比を低減し、前記パイロットパターンの前記リザーブされたトーンのトーン値を用いてチャネル推定を実行するように構成されたチャネル推定器と、
を備え、
前記選択することは、所定のリザーブされたトーンのトーン値を用いることを含む、
装置。 - 直交周波数分割多重化(OFDM)信号においてチャネル推定を行う方法を実行するための、汎用コンピュータで実行される命令のセットを記憶するコンピュータ可読記憶媒体であって、
前記命令のセットは、
パイロットパターンの一部となるリザーブされたトーンのトーン値を選択するための選択コードセグメントであって、前記リザーブされたトーンのトーン値への信号ピークの投影を用いて低減信号を生成するための第1の使用コードセグメントと、前記低減信号をピークキャンセルに用いてピーク対平均電力比を低減するための第2の使用コードセグメントと、を含む選択コードセグメントと、
前記パイロットパターンの前記リザーブされたトーンのトーン値を用いてチャネル推定を実行するための第3の使用コードセグメントと、を含み、
前記選択コードセグメントは、所定のリザーブされたトーンのトーン値を用いることを含む、
コンピュータ可読記憶媒体。 - 前記選択コードセグメントは、リザーブされたトーンのトーン値を動的に決定することを含む請求項6のコンピュータ可読記憶媒体。
- 前記選択コードセグメントは、前記リザーブされたトーンのトーン値を、受信機初期化プロセス間の反復プロセスによって動的に決定することを含む請求項7のコンピュータ可読記憶媒体。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US11653308P | 2008-11-20 | 2008-11-20 | |
US61/116,533 | 2008-11-20 | ||
US12/415,747 | 2009-03-31 | ||
US12/415,747 US8306148B2 (en) | 2008-11-20 | 2009-03-31 | Method to reduce peak to average power ratio in multi-carrier modulation receivers |
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JP2011537521A Division JP5984392B2 (ja) | 2008-11-20 | 2009-11-13 | 多重キャリア変調受信機におけるチャネル推定及びピーク対平均電力比低減 |
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JP2015092756A JP2015092756A (ja) | 2015-05-14 |
JP5926825B2 true JP5926825B2 (ja) | 2016-05-25 |
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JP2015006231A Active JP5926825B2 (ja) | 2008-11-20 | 2015-01-15 | 多重キャリア変調受信機におけるチャネル推定及びピーク対平均電力比低減 |
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US (3) | US8306148B2 (ja) |
EP (2) | EP2359559A2 (ja) |
JP (2) | JP5984392B2 (ja) |
KR (1) | KR101628887B1 (ja) |
CN (2) | CN103634243B (ja) |
WO (1) | WO2010059521A2 (ja) |
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KR20120099838A (ko) * | 2011-03-02 | 2012-09-12 | 삼성전자주식회사 | 방송통신시스템에서 피크 전력 대 평균 전력의 비를 감소시키기 위한 장치 및 방법 |
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WO2013086311A1 (en) * | 2011-12-07 | 2013-06-13 | Drexel University | A joint bit loading and symbol rotation scheme for multi-carrier systems in siso and mimo links |
CN102932289B (zh) * | 2012-09-07 | 2015-07-15 | 重庆邮电大学 | Ofdm系统中基于循环移位估计移位个数及信道响应的方法 |
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JP5892073B2 (ja) * | 2013-01-15 | 2016-03-23 | アイコム株式会社 | 通信機および通信方法 |
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CN103618687B (zh) * | 2013-12-03 | 2017-03-22 | 东南大学 | 一种拥有低峰均功率比的无线光正交多载波通信方法 |
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KR101833041B1 (ko) | 2015-06-09 | 2018-02-27 | 삼성전자주식회사 | 예약 톤 설계 방법 및 톤 예약 방식을 이용하여 papr 저감을 수행하는 송신기 |
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Publication number | Publication date |
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CN102292947A (zh) | 2011-12-21 |
CN103634243B (zh) | 2017-08-11 |
EP2557750B1 (en) | 2016-11-02 |
US8625715B2 (en) | 2014-01-07 |
WO2010059521A3 (en) | 2011-03-31 |
US20130058440A1 (en) | 2013-03-07 |
US8306148B2 (en) | 2012-11-06 |
US20100124293A1 (en) | 2010-05-20 |
JP2012509645A (ja) | 2012-04-19 |
JP5984392B2 (ja) | 2016-09-07 |
EP2557750A1 (en) | 2013-02-13 |
KR101628887B1 (ko) | 2016-06-09 |
CN103634243A (zh) | 2014-03-12 |
US20100124296A1 (en) | 2010-05-20 |
EP2359559A2 (en) | 2011-08-24 |
WO2010059521A2 (en) | 2010-05-27 |
US8644401B2 (en) | 2014-02-04 |
JP2015092756A (ja) | 2015-05-14 |
KR20110095907A (ko) | 2011-08-25 |
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