JP5784575B2 - Harqを実装するシステムにおけるコードワード対レイヤ・マッピング - Google Patents
Harqを実装するシステムにおけるコードワード対レイヤ・マッピング Download PDFInfo
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- JP5784575B2 JP5784575B2 JP2012248664A JP2012248664A JP5784575B2 JP 5784575 B2 JP5784575 B2 JP 5784575B2 JP 2012248664 A JP2012248664 A JP 2012248664A JP 2012248664 A JP2012248664 A JP 2012248664A JP 5784575 B2 JP5784575 B2 JP 5784575B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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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
- H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
-
- 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
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Optical Communication System (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Error Detection And Correction (AREA)
Description
Claims (8)
- ハイブリッド自動再送要求(HARQ)のコードワードを用いて無線チャネルで情報信号を送信する方法であって、
第1の送信において、各コードワードが2個のレイヤにマッピングされるコードワード対レイヤ・マッピングを用いて複数のコードワードを送信する工程と、
前記複数のコードワードのうちの少なくとも1個に含まれる情報の再送の要求を受信する工程と、
1個のコードワードが少なくとも2個のレイヤにマッピングされるコードワード対レイヤ・マッピングを用いて、前記第1の送信における伝送ランクよりも小さい伝送ランクで、再送を要求された情報を含む1個のコードワードの再送を行う工程であって、当該1個のコードワードは、現在の伝送ランクに対応する個数のレイヤにマッピングされる、工程を有することを特徴とする方法。 - 1個のコードワードは、2個のレイヤ又は3個のレイヤにマッピングされることを特徴とする請求項1に記載の方法。
- 前記第1の送信において、伝送ランクが4であり、2個のコードワードが送信され、
前記再送のための伝送ランクが4未満であることを特徴とする請求項1又は2に記載の方法。 - 前記再送のための伝送ランクは2であり、1個のコードワードは2個のレイヤにマッピングされることを特徴とする請求項3に記載の方法。
- 前記2個のコードワードのうちの1個だけに含まれる情報の再送の要求を受信する工程を有することを特徴とする請求項3又は4に記載の方法。
- 使用されるコードワード対レイヤ・マッピングを受信機に伝える工程を有することを特徴とする請求項1乃至5の何れか1項に記載の方法。
- 前記使用されるコードワード対レイヤ・マッピングは、未使用のままであるべきコードワードに対応するトランスポート・フォーマット・サイズ・フィールドをゼロに設定することによって伝えられることを特徴とする請求項6に記載の方法。
- ハイブリッド自動再送要求(HARQ)のコードワードを用いて無線チャネルで情報信号を送信するための送信機であって、
第1の送信において、各コードワードが2個のレイヤにマッピングされるコードワード対レイヤ・マッピングを用いて複数のコードワードを送信するように構成された手段と、
前記複数のコードワードのうちの少なくとも1個に含まれる情報の再送の要求を受信するように構成された手段と、
1個のコードワードが少なくとも2個のレイヤにマッピングされるコードワード対レイヤ・マッピングを用いて、前記第1の送信における伝送ランクよりも小さい伝送ランクで、再送を要求された情報を含む1個のコードワードの再送を行うように構成された手段であって、当該1個のコードワードは、現在の伝送ランクに対応する個数のレイヤにマッピングされる、手段を有することを特徴とする送信機。
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JP2012248664A Active JP5784575B2 (ja) | 2007-02-14 | 2012-11-12 | Harqを実装するシステムにおけるコードワード対レイヤ・マッピング |
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US (3) | US8064394B2 (ja) |
EP (4) | EP2966820B1 (ja) |
JP (8) | JP5135358B2 (ja) |
KR (1) | KR101478375B1 (ja) |
CN (1) | CN101611586B (ja) |
ES (3) | ES2551312T3 (ja) |
HU (2) | HUE059616T2 (ja) |
PL (2) | PL2966820T3 (ja) |
RU (1) | RU2452088C2 (ja) |
TW (1) | TWI455491B (ja) |
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