JP2010213318A - 無線通信システムにおけるフレキシブル・リンクに適応を可能にする制御信号伝達のための方法 - Google Patents
無線通信システムにおけるフレキシブル・リンクに適応を可能にする制御信号伝達のための方法 Download PDFInfo
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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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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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
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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
- H04L1/0026—Transmission of channel quality indication
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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
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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
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
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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
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1835—Buffer management
- H04L1/1845—Combining techniques, e.g. code combining
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Communication Control (AREA)
Abstract
【解決手段】受信側エンティティにおいて、下り回線を通じてデータのブロックを受信する工程と、受信した前記データのブロック及び前記下り回線のうちの少なくとも一つの品質レベルを判断する工程と、上り回線を通じて、前記判断工程の結果に基づく少なくとも1つのリンク品質推定値と、前記受信側エンティティが増分冗長性の合成処理をサポートするためにブロックを蓄積し続けるのに十分なメモリ容量を有するかを表示する表示子とを送信側エンティティに伝送する工程と、前記送信側エンティティにおいて前記表示子及び前記リンク品質推定値に基づいて選択された、変調及び符号化の方式の再送信されるデータブロックを前記上り回線を通じて受信する工程とを有する。
【選択図】図13
Description
“できれば、新たな伝送のために命令されたMCSと同じMCSにリセグメンテーションする。できなければ、
命令されたMCSよりは耐性が高い最低の耐性のMCSにリセグメンテーションする。それもなおできなければ、できるだけの最高の耐性のMCSにリ セグメンテーションする。”
これは、いくつかのケースでは、再送信用のMCSが元々の送信用のMCSよりも耐性が低いものとなることを意味する。
Claims (3)
- 送信側エンティティ(610)と受信側エンティティ(600)との間で下り/上り回線の対(620/630)を通じて情報を転送する、前記受信側エンティティ(600)における方法であって、
前記受信側エンティティ(600)において、前記下り回線(620)を通じてデータのブロックを受信する工程と、
受信した前記データのブロック及び前記下り回線のうちの少なくとも一つの品質レベルを判断する工程と、
前記上り回線(630)を通じて、前記受信側エンティティが増分冗長性の合成処理をサポートするためにブロックを蓄積し続けるのに十分なメモリ容量を有するかを表示する表示子と、前記判断する工程の結果に基づく少なくとも一つのリンク品質推定値とを前記送信側エンティティ(610)に伝送する工程と、
送信側において前記表示子及び前記リンク品質測定値に基づいて選択された変調/符号化の方式の再送データのブロックを前記下り回線で受信する工程と、
を含む方法。 - 送信側エンティティ(610)と受信側エンティティ(600)との間で下り/上り回線の対(620/630)を通じて情報を転送する前記送信側エンティティ(610)における方法であって、
前記受信側エンティティ(600)に、前記下り回線(620)を通じてデータのブロックを送信する工程と、
前記上り回線(630)を通じて、前記受信側エンティティが増分冗長性の合成処理をサポートするためにブロックを蓄積し続けるのに十分なメモリ容量を有するかを表示する表示子と、受信された前記データのブロック及び前記下り回線のうちの少なくとも一つの品質レベルに基づく少なくとも一つのリンク品質推定値とを前記受信側エンティティ(600)から受信する工程と、
前記送信エンティティにおいて、再送データのブロックを前記下り回線で伝送するための変調/符号化の方式を前記表示子及び前記リンク品質測定値に基づいて選択する工程と、
を含む方法。 - 送信機(610)に、下り/上り回線の対(620/630)を通じて情報を転送する受信機(600)であって、
送信機から受信したデータのブロックを処理するプロセッサと、
送信機から下り回線で受信したデータのブロックを記憶するメモリであって、その記憶したデータのブロックの再送信されたものと合成される、受信したデータのブロックを記憶するメモリと、
送信機から受信された前記データのブロック及び前記下り回線のうちの少なくとも一つの品質レベルを判断する手段と、
前記受信機が増分冗長性の合成処理をサポートするためにブロックを蓄積し続けるのに十分なメモリ容量を有するかを表示するメッセージと、前記判断した品質レベルに基づく少なくとも一つのリンク品質測定値とを前記送信機(610)に伝送する手段と、
送信機において前記メッセージ及び前記リンク品質測定値に基づいて選択された変調/符号化の方式の再送データのブロックを前記下り回線で受信する手段と、
を含む受信機。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US09/252,989 US6865233B1 (en) | 1999-02-19 | 1999-02-19 | Method and system for control signalling enabling flexible link adaptation in a radiocommunication system |
Related Parent Applications (1)
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JP2000600388A Division JP4555482B2 (ja) | 1999-02-19 | 2000-02-11 | 無線通信システムにおけるフレキシブル・リンク適応を可能にする制御信号伝達のための方法及びシステム |
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JP2010213318A true JP2010213318A (ja) | 2010-09-24 |
JP4621805B2 JP4621805B2 (ja) | 2011-01-26 |
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JP2000600388A Expired - Lifetime JP4555482B2 (ja) | 1999-02-19 | 2000-02-11 | 無線通信システムにおけるフレキシブル・リンク適応を可能にする制御信号伝達のための方法及びシステム |
JP2010097567A Expired - Lifetime JP4621805B2 (ja) | 1999-02-19 | 2010-04-21 | 無線通信システムにおけるフレキシブル・リンクに適応を可能にする制御信号伝達のための方法 |
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US (1) | US6865233B1 (ja) |
EP (1) | EP1153494B1 (ja) |
JP (2) | JP4555482B2 (ja) |
CN (1) | CN1146181C (ja) |
AU (1) | AU766839B2 (ja) |
BR (1) | BR0008299B1 (ja) |
CA (1) | CA2363652C (ja) |
DE (1) | DE60039681D1 (ja) |
WO (1) | WO2000049760A1 (ja) |
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BR0008299B1 (pt) | 2015-01-13 |
JP4621805B2 (ja) | 2011-01-26 |
WO2000049760A1 (en) | 2000-08-24 |
CN1347606A (zh) | 2002-05-01 |
AU766839B2 (en) | 2003-10-23 |
AU3202500A (en) | 2000-09-04 |
EP1153494B1 (en) | 2008-07-30 |
JP2002537722A (ja) | 2002-11-05 |
JP4555482B2 (ja) | 2010-09-29 |
DE60039681D1 (de) | 2008-09-11 |
CN1146181C (zh) | 2004-04-14 |
CA2363652A1 (en) | 2000-08-24 |
CA2363652C (en) | 2012-01-10 |
BR0008299A (pt) | 2002-01-22 |
US6865233B1 (en) | 2005-03-08 |
EP1153494A1 (en) | 2001-11-14 |
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