JP2005323383A - ピーク対平均出力比制御 - Google Patents
ピーク対平均出力比制御 Download PDFInfo
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- JP2005323383A JP2005323383A JP2005136816A JP2005136816A JP2005323383A JP 2005323383 A JP2005323383 A JP 2005323383A JP 2005136816 A JP2005136816 A JP 2005136816A JP 2005136816 A JP2005136816 A JP 2005136816A JP 2005323383 A JP2005323383 A JP 2005323383A
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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
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH 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
- H04L1/004—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
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
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Abstract
【解決手段】PAPRの低減は、送信のためにサブパケットを適切に選択することによって達成することができる。例えば、スケジューラは、サブパケットの少なくとも1つが適切に受信されるまで、各サブパケットのPAPRに関する順序でサブパケットを順次送信することを選ぶことができる。本発明の一実施形態では、伝送の順序は、最低のPAPRから最高のPAPRの順序となるように選択される。
【選択図】図1
Description
Claims (10)
- 情報を送信する方法であって、
前記情報から第1および第2サブパケットを形成する工程と、
前記第1および第2サブパケットに関するピーク対平均出力比を求める工程と、
前記第1および第2サブパケットの少なくとも一方を、各サブパケットの前記ピーク対平均出力比に関する順序で送信する工程とを含む方法。 - 前記第1および第2サブパケットの少なくとも一方を、各サブパケットの前記ピーク対平均出力比に関する順序で送信する前記工程が、最低のピーク対平均出力比を有するサブパケットをまず送信する工程をさらに含む請求項1に記載の方法。
- 前記第1および第2サブパケットの少なくとも一方を、各サブパケットの前記ピーク対平均出力比に関する順序で送信する前記工程が、最低のピーク対平均出力比を有するサブパケットをまず送信する工程と、最低のピーク対平均出力比を有する前記サブパケットが適切に受信されなかったという信号を受信したことに応答して、より高いピーク対平均出力比を有するサブパケットを2番目に送信する工程とをさらに含む請求項1に記載の方法。
- 前記第1および第2サブパケットの少なくとも一方が適切に受信されたことを示す信号を受信したことに応答して、後続の1組の情報から第3および第4サブパケットを形成する工程と、
前記第3および第4サブパケットに関するピーク対平均出力比を求める工程と、
前記第3および第4サブパケットの少なくとも一方を、各サブパケットの前記ピーク対平均出力比に関する順序で送信する工程とをさらに含む請求項3に記載の方法。 - 前記情報から第1および第2サブパケットを形成する工程が、前記情報から第1および第2自己復号化可能サブパケットを形成する工程をさらに含む請求項1に記載の方法。
- 情報を送信する方法であって、
前記情報から複数のサブパケットを形成する工程と、
前記複数のサブパケットの少なくとも一部に関するピーク対平均出力比を求める工程と、
前記複数のサブパケットの少なくとも1つを、各サブパケットの前記ピーク対平均出力比に関する順序で送信する工程とを含む方法。 - 前記複数のサブパケットの少なくとも1つを、各サブパケットの前記ピーク対平均出力比に関する順序で送信する工程が、最低のピーク対平均出力比を有するサブパケットをまず送信する工程を含む請求項6に記載の方法。
- 前記複数のサブパケットの少なくとも1つを、各サブパケットの前記ピーク対平均出力比に関する順序で送信する工程が、最低のピーク対平均出力比を有するサブパケットをまず送信する工程と、最低のピーク対平均出力比を有する前記サブパケットが適切に受信されなかったという信号を受信したことに応答して、次に低いピーク対平均出力比を有するサブパケットをその後に送信する工程とをさらに含む請求項6に記載の方法。
- 前記複数のサブパケットの少なくとも1つを、各サブパケットの前記ピーク対平均出力比に関する順序で送信する工程が、前記サブパケットのうち少なくとも1つが適切に受信されたという信号を受信するまで、最低のピーク対平均出力比から最高のピーク対平均出力比の順序で前記各サブパケットを順次送信する工程をさらに含む請求項6に記載の方法。
- 前記複数のサブパケットの少なくとも1つを、各サブパケットの前記ピーク対平均出力比に関する順序で送信する工程が、
第1サブパケットを選択する工程と、
選択したサブパケットの前記ピーク対平均出力比が事前選択した設定値未満であることに応答して、前記第1サブパケットを送信する工程とを含む請求項6に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/842,713 US7808940B2 (en) | 2004-05-10 | 2004-05-10 | Peak-to-average power ratio control |
US10/842713 | 2004-05-10 |
Publications (2)
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JP2005323383A true JP2005323383A (ja) | 2005-11-17 |
JP4728040B2 JP4728040B2 (ja) | 2011-07-20 |
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JP2005136816A Expired - Fee Related JP4728040B2 (ja) | 2004-05-10 | 2005-05-10 | ピーク対平均出力比制御 |
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Country | Link |
---|---|
US (1) | US7808940B2 (ja) |
EP (1) | EP1596550B1 (ja) |
JP (1) | JP4728040B2 (ja) |
KR (1) | KR101117508B1 (ja) |
CN (1) | CN1697439A (ja) |
DE (1) | DE602005005107T2 (ja) |
Cited By (4)
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JP2008524957A (ja) * | 2004-12-21 | 2008-07-10 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 通信システムにおいてパケットデータユニットを送信するための送信装置および送信方法 |
WO2010073670A1 (ja) * | 2008-12-24 | 2010-07-01 | パナソニック株式会社 | 無線通信装置およびサブパケット送信方法 |
JP2013530606A (ja) * | 2010-05-06 | 2013-07-25 | クゥアルコム・インコーポレイテッド | Ack/nackフィードバックを伴う中継局を介したデータ送信 |
JP2013223162A (ja) * | 2012-04-18 | 2013-10-28 | Icom Inc | 通信機および通信方法 |
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US7535950B2 (en) * | 2004-12-15 | 2009-05-19 | Georgia Tech Research Corp. | Blind selected mapping techniques for crest factor reduction of forward link CDMA signals |
EP1983669B1 (en) * | 2006-01-31 | 2017-09-06 | Fujitsu Limited | Multicarrier communication apparatus and peak suppressing method therein |
KR101314254B1 (ko) | 2007-02-16 | 2013-10-02 | 삼성전자주식회사 | Ofdm 송수신 시스템 및 그 방법 |
US7796498B2 (en) * | 2008-06-29 | 2010-09-14 | Intel Corporation | Weighted tone reservation for OFDM PAPR reduction |
US8416675B2 (en) * | 2008-09-30 | 2013-04-09 | Intel Corporation | Tone reservation techniques for reducing peak-to-average power ratios |
US9544004B2 (en) | 2010-03-12 | 2017-01-10 | Sunrise Micro Devices, Inc. | Power efficient communications |
CA2797043C (en) * | 2010-04-21 | 2016-01-19 | Lg Electronics Inc. | Method of reducing peak-to-average power ratio, cubic metric and block error rate in ofdm systems using network coding |
CN102638326B (zh) * | 2011-02-14 | 2015-07-22 | 中兴通讯股份有限公司 | 译码可靠性判断方法及装置 |
US8611837B2 (en) | 2011-08-30 | 2013-12-17 | Motorola Mobility Llc | Method and apparatus for power cutback in a simultaneous dual frequency band call |
CN103441980A (zh) * | 2013-08-29 | 2013-12-11 | 哈尔滨工程大学 | 基于频率反转镜技术的无边带信息浅海水声通信图样选择峰均比抑制算法 |
KR102269498B1 (ko) | 2015-01-28 | 2021-06-28 | 삼성전자 주식회사 | 다중 반송파 통신 시스템에서 전력을 제어하는 방법 및 장치 |
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2005
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- 2005-04-22 EP EP05252540A patent/EP1596550B1/en active Active
- 2005-05-06 KR KR1020050038054A patent/KR101117508B1/ko not_active IP Right Cessation
- 2005-05-09 CN CNA2005100704212A patent/CN1697439A/zh active Pending
- 2005-05-10 JP JP2005136816A patent/JP4728040B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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JP4728040B2 (ja) | 2011-07-20 |
DE602005005107T2 (de) | 2009-05-14 |
KR20060045935A (ko) | 2006-05-17 |
US7808940B2 (en) | 2010-10-05 |
DE602005005107D1 (de) | 2008-04-17 |
CN1697439A (zh) | 2005-11-16 |
KR101117508B1 (ko) | 2012-03-08 |
US20050249110A1 (en) | 2005-11-10 |
EP1596550A1 (en) | 2005-11-16 |
EP1596550B1 (en) | 2008-03-05 |
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