JP5165059B2 - 多重アンテナシステムにおけるフィードバックデータの伝送方法 - Google Patents
多重アンテナシステムにおけるフィードバックデータの伝送方法 Download PDFInfo
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- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
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- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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- 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
- H04B7/0619—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 using feedback from receiving side
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- 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
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- 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
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- 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
- H04B7/0619—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 using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
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- 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
- H04B7/0619—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 using feedback from receiving side
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- H04L25/00—Baseband systems
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- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
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Description
(項目1)
多重アンテナシステムにおけるフィードバックデータの伝送方法において、
ダウンリンクチャネル上にフィードバックデータの要請メッセージを受信し、前記要請メッセージは、アップリンクスケジューリング情報を含み、
複数のサブバンド内でM(M=1)サブバンドの集合を選択して、
前記フィードバックデータを生成し、前記フィードバックデータは、周波数選択的PMI(precoding matrix indicator)、周波数均一PMI、ベストバンドCQI(channel quality indicator)及び全体バンドCQIを含み、前記周波数選択的PMIは、前記M個の選択されたサブバンドに対するコードブック(codebook)から選択されたプリコーディング行列のインデックスを示して、前記周波数均一PMIは、前記複数のサブバンドに対する前記コードブックから選択されたプリコーディング行列のインデックスを示して、前記ベストバンドCQIは、前記M個の選択されたサブバンドに対するCQI値を示して、前記全体バンドCQIは、前記複数のサブバンドに対するCQI値を示して;及び、、
前記アップリンクスケジューリング情報に割り当てられたアップリンクチャネル上に前記フィードバックデータを伝送することを含む方法。
(項目2)
前記フィードバックデータは、RI(rank indicator)をさらに含み、前記RIは、使用することができる伝送階層の個数に対応して、前記ベストバンドCQI及び前記全体バンドCQIは、各伝送階層に対して計算される項目1に記載の方法。
(項目3)
前記フィードバックデータは、前記M個の選択されたサブバンドの位置を表すビットマップをさらに含む項目1に記載の方法。
(項目4)
前記ダウンリンクチャネルは、PDCCH(physical downlink control channel)である項目1に記載の方法。
(項目5)
前記アップリンクチャネルは、PUSCH(physical uplink shared channel)である項目1に記載の方法。
(項目6)
前記ベストバンドCQIは、前記全体バンドCQIとの差分値を有する項目1に記載の方法。
(項目7)
前記アップリンクスケジューリング情報は、前記フィードバックデータの伝送を指示するインジケータ及びアップリンク無線資源割当を含む項目1に記載の方法。
(項目8)
前記M個のサブバンドの集合は、各サブバンドのCQIに応じて前記複数のサブバンド内で選択される項目1に記載の方法。
(項目9)
多重アンテナシステムにおけるフィードバックデータの伝送方法において、
複数のサブバンド内でM(M=1)サブバンドの集合を選択して、及び
アップリンク共有チャネル上にフィードバックデータを伝送することを含み、
前記フィードバックデータは、周波数選択的PMI(precoding matrix indicator)、周波数均一PMI、ベストバンドCQI(channel quality indicator)及び全体バンドCQIを含み、前記周波数選択的PMIは、前記M個の選択されたサブバンドに対するコードブック(codebook)から選択されたプリコーディング行列のインデックスを示して、前記周波数均一PMIは、前記複数のサブバンドに対する前記コードブックから選択されたプリコーディング行列のインデックスを示して、前記ベストバンドCQIは、前記M個の選択されたサブバンドに対するCQI値を示して、前記全体バンドCQIは、前記複数のサブバンドに対するCQI値を示す方法。
(項目10)
ダウンリンク制御チャネル上にフィードバックデータの要請メッセージを受信することをさらに含み、前記要請メッセージは、アップリンクスケジューリング情報を含み、前記アップリンク共有チャネルは、前記アップリンクスケジューリング情報を用いて伝送される項目9に記載の方法。
(項目11)
前記フィードバックデータは、前記複数のサブバンドに対するRIをさらに含む項目9に記載の方法。
(項目12)
前記フィードバックデータは、前記M個の選択されたサブバンドの位置を表すビットマップをさらに含む項目9に記載の方法。
(項目13)
前記ベストバンドCQIは、前記全体バンドCQIとの差分値を有する項目9に記載の方法。
PMIバンド(PB)は、サブバンドと同じ範囲(PB=SB):(a)PMIバンドの範囲は、M個のCQIのためのサブバンドと同じ範囲と決められることができる。
PMIバンド(PB)は、サブバンドより整数(integral number)倍ほど大きい範囲(SB<PB<WB):(a)PMIバンドの範囲は、M個のCQIのためのサブバンドの連続されたサブバンドの大きさと決められることができる。(b)M個の平均CQIが伝送される時、M個のサブバンドがPMIバンドとして決められることができる。(c)N個のサブバンドから選択されないバンド(Non−selected Band)である(N−M)個のサブバンドがPMIバンドとして決められることができる。
PMIバンド(PB)は、全体バンドと同じ範囲(PB=WB):(a)PMIバンドの範囲は、全体バンドと同じ範囲と決められることができる。
30 端末
100 送信機
110 スケジューラ
120−1,...,120−K チャネルエンコーダ
130−1,...,130−K マッパ
140−1,...,140−K 前処理器
150 多重化器
190−1,...,190−Nt 送信アンテナ
200 受信機
210 復調器
220 チャネル推定器
230 後処理器
240 デマッパ
250 チャネルデコーダ
260 制御器
290−1,...,290−Nr 受信アンテナ
Claims (7)
- 多重アンテナシステムにおけるフィードバックデータを伝送する方法であって、
前記方法は、
ダウンリンクチャネル上でフィードバックデータの要請メッセージを受信することであって、前記要請メッセージは、アップリンクスケジューリング情報を含む、ことと、
複数のサブバンド内でM個のサブバンドの集合を選択することであって、Mは1以上である、ことと、
前記フィードバックデータを生成することであって、前記フィードバックデータは、周波数選択的PMI(precoding matrix indicator)、周波数均一PMI、ベストバンドCQI(channel quality indicator)及び全体バンドCQIを含み、前記周波数選択的PMIは、前記M個の選択されたサブバンドに対するコードブックから選択されたプリコーディング行列のインデックスを示し、前記周波数均一PMIは、前記複数のサブバンドに対する前記コードブックから選択されたプリコーディング行列のインデックスを示し、前記ベストバンドCQIは、前記M個の選択されたサブバンドに対するCQI値を示し、前記全体バンドCQIは、前記複数のサブバンドに対するCQI値を示す、ことと、
前記アップリンクスケジューリング情報に割り当てられたアップリンクチャネル上で前記フィードバックデータを伝送することと
を含み、前記アップリンクチャネルは、PUSCH(physical uplink shared channel)である、方法。 - 前記フィードバックデータは、RI(rank indicator)をさらに含み、前記RIは、使用することができる伝送階層の個数に対応し、前記ベストバンドCQI及び前記全体バンドCQIは、各伝送階層に対して計算される、請求項1に記載の方法。
- 前記フィードバックデータは、前記M個の選択されたサブバンドの位置を表す資源インジケータをさらに含む、請求項1に記載の方法。
- 前記ダウンリンクチャネルは、PDCCH(physical downlink control channel)である、請求項1に記載の方法。
- 前記ベストバンドCQIは、前記全体バンドCQIとのCQI差分値を有する、請求項1に記載の方法。
- 前記アップリンクスケジューリング情報は、前記フィードバックデータの伝送を指示するインジケータ及びアップリンク無線資源割当を含む、請求項1に記載の方法。
- 前記M個のサブバンドの集合は、各サブバンドのCQIに応じて前記複数のサブバンド内で選択される、請求項1に記載の方法。
Applications Claiming Priority (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20070080519 | 2007-08-10 | ||
KR10-2007-0080519 | 2007-08-10 | ||
KR20070081913 | 2007-08-14 | ||
KR10-2007-0081913 | 2007-08-14 | ||
US97814007P | 2007-10-08 | 2007-10-08 | |
US60/978,140 | 2007-10-08 | ||
KR10-2007-0118168 | 2007-11-19 | ||
KR20070118168 | 2007-11-19 | ||
KR1020080005864A KR20090016374A (ko) | 2007-08-10 | 2008-01-18 | 다중안테나 시스템에서의 제어신호 전송 방법 및 채널 정보전송 방법 |
KR10-2008-0005864 | 2008-01-18 | ||
US2530408P | 2008-02-01 | 2008-02-01 | |
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KR20080073340A KR101478362B1 (ko) | 2007-08-10 | 2008-07-28 | 다중안테나 시스템에서 귀환데이터 전송방법 |
KR10-2008-0073340 | 2008-07-28 | ||
PCT/KR2008/004621 WO2009022820A2 (en) | 2007-08-10 | 2008-08-08 | Method for transmitting feedback data in multiple antenna system |
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KR20090016386A (ko) | 2009-02-13 |
TW200922178A (en) | 2009-05-16 |
EP2186213A2 (en) | 2010-05-19 |
US20090052405A1 (en) | 2009-02-26 |
US20120201165A1 (en) | 2012-08-09 |
CN101821959A (zh) | 2010-09-01 |
KR101478362B1 (ko) | 2015-01-28 |
US8184544B2 (en) | 2012-05-22 |
EP2186213B1 (en) | 2013-12-18 |
US8804542B2 (en) | 2014-08-12 |
WO2009022820A2 (en) | 2009-02-19 |
CN101821959B (zh) | 2013-05-01 |
EP2186213A4 (en) | 2010-08-25 |
WO2009022820A3 (en) | 2009-04-16 |
ES2443723T3 (es) | 2014-02-20 |
JP2010534442A (ja) | 2010-11-04 |
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