JP5200002B2 - 適応ビットローディング用の変調パターン圧縮技術 - Google Patents
適応ビットローディング用の変調パターン圧縮技術 Download PDFInfo
- Publication number
- JP5200002B2 JP5200002B2 JP2009507615A JP2009507615A JP5200002B2 JP 5200002 B2 JP5200002 B2 JP 5200002B2 JP 2009507615 A JP2009507615 A JP 2009507615A JP 2009507615 A JP2009507615 A JP 2009507615A JP 5200002 B2 JP5200002 B2 JP 5200002B2
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- station
- bit loading
- patterns
- abl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
-
- 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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
- H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
-
- 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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims (2)
- 適応ビットローディング(ABL)技術を用いて無線ネットワーク内で動作可能な無線局を含み、
前記無線局は、前記ABLを実行すべく、予め制限された複数の変調パターンを含むセットを使用可能であり、
前記予め制限された複数の変調パターンを含むセットは、Nmod Nsc個のパターンより少ない事前に格納されたNBL個のパターンを含むセットに制限され、Nscは、1つのOFDMシンボルにおけるサブキャリアの数であり、
前記無線局から複数のパケットを受信可能である少なくとも1つの追加無線局を更に含み、
前記少なくとも1つの追加無線局による前記複数のパケットの受信後、前記少なくとも1つの追加無線局は、前記NBL個のパターンのうちのどのパターンが現在のチャネル条件に最適であるか決定し、前記無線局に、パターン自体ではなく前記パターンのインデックスを送り返し、
前記無線局は、前記パターン自体よりむしろ前記パターンのインデックスを用いてビットローディングパターンを取得し、前記パターンを用いてデータを変調し、前記ビットローディングパターンのインデックスを先にして前記少なくとも1つの追加無線局にデータを送信する装置。 - 前記無線局は、所与のパターンセットにおいて最も近いビットローディングパターンを、前記パターンセットに固有のインデックスを付けることにより素早く見つける方法を作成可能である、請求項1に記載の装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/RU2006/000216 WO2007126326A1 (en) | 2006-04-27 | 2006-04-27 | Techniques to compress modulation patterns for adaptive bitloading |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009534985A JP2009534985A (ja) | 2009-09-24 |
JP5200002B2 true JP5200002B2 (ja) | 2013-05-15 |
Family
ID=37714452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009507615A Expired - Fee Related JP5200002B2 (ja) | 2006-04-27 | 2006-04-27 | 適応ビットローディング用の変調パターン圧縮技術 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080253278A1 (ja) |
EP (1) | EP2016730A1 (ja) |
JP (1) | JP5200002B2 (ja) |
CN (1) | CN101427536A (ja) |
WO (1) | WO2007126326A1 (ja) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5805762A (en) * | 1993-01-13 | 1998-09-08 | Hitachi America, Ltd. | Video recording device compatible transmitter |
US6134273A (en) * | 1996-12-23 | 2000-10-17 | Texas Instruments Incorporated | Bit loading and rate adaptation on DMT DSL data transmission |
US7213197B2 (en) * | 2003-08-08 | 2007-05-01 | Intel Corporation | Adaptive bit loading with low density parity check forward error correction |
US7489621B2 (en) * | 2003-12-30 | 2009-02-10 | Alexander A Maltsev | Adaptive puncturing technique for multicarrier systems |
KR20050081528A (ko) * | 2004-02-14 | 2005-08-19 | 삼성전자주식회사 | 다중반송파 통신시스템을 위한 채널 상태정보 피드백 방법 |
WO2005086903A2 (en) * | 2004-03-08 | 2005-09-22 | Sharp Laboratories Of America, Inc. | System and method for adaptive bit loading source coding via vector quantization |
WO2005122448A1 (ja) * | 2004-06-09 | 2005-12-22 | Sharp Kabushiki Kaisha | 無線通信装置 |
CN1741412B (zh) * | 2004-08-27 | 2011-06-08 | 清华大学 | 无线网络中子信道分配的方法 |
JP4150388B2 (ja) * | 2005-07-19 | 2008-09-17 | 松下電器産業株式会社 | 無線送信装置およびガード周波数帯設定方法 |
-
2006
- 2006-04-27 WO PCT/RU2006/000216 patent/WO2007126326A1/en active Application Filing
- 2006-04-27 JP JP2009507615A patent/JP5200002B2/ja not_active Expired - Fee Related
- 2006-04-27 US US10/588,950 patent/US20080253278A1/en not_active Abandoned
- 2006-04-27 EP EP06812894A patent/EP2016730A1/en not_active Withdrawn
- 2006-04-27 CN CNA2006800543868A patent/CN101427536A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
EP2016730A1 (en) | 2009-01-21 |
US20080253278A1 (en) | 2008-10-16 |
JP2009534985A (ja) | 2009-09-24 |
CN101427536A (zh) | 2009-05-06 |
WO2007126326A1 (en) | 2007-11-08 |
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