JP5570080B2 - 多重アンテナシステムにおける干渉緩和のための制御情報を転送するための方法及び装置 - Google Patents
多重アンテナシステムにおける干渉緩和のための制御情報を転送するための方法及び装置 Download PDFInfo
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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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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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
- H04B7/0619—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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- 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
- H04B7/0619—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
- H04B7/0658—Feedback reduction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
- H04J11/003—Interference mitigation or co-ordination of multi-user interference at the transmitter
- H04J11/0033—Interference mitigation or co-ordination of multi-user interference at the transmitter by pre-cancellation of known interference, e.g. using a matched filter, dirty paper coder or Thomlinson-Harashima precoder
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
- H04L2025/03802—Signalling on the reverse channel
- H04L2025/03808—Transmission of equaliser coefficients
Description
110 端末
120 干渉基地局
Claims (20)
- 多重アンテナシステムにおける干渉緩和のための制御情報を転送するための端末動作の方法において、
隣接基地局からの干渉に対し、プリコーディング行列インデックス(Precoding Matrix Index:PMI)を決定する過程と、
前記PMIとコードブック内の他のプリコーディング行列との間における相関値からの相関レベル(correlation level)に基づいてプリコーディング行列のサブセットの大きさを決定する過程と、
前記サブセットの大きさと前記PMIを指示する情報をフィードバックする過程と
を含むことを特徴とする方法。 - 多重アンテナシステムにおける干渉緩和のための制御情報を転送するためのサービング基地局動作の方法において、
少なくとも一つ以上の端末からPMIとプリコーディング行列のサブセットの大きさの情報を受信する過程と、
前記少なくとも一つ以上の端末から受信した前記サブセットの大きさの情報を隣接基地局と交換し、前記隣接基地局のプリコーディングを調整(coordinate)する過程と
を含むことを特徴とする方法。 - 干渉緩和のための制御情報を転送するための多重アンテナシステムにおいて、
隣接基地局からの干渉に対し、プリコーディング行列インデックス(Precoding Matrix Index:PMI)そしてコードブック内の他のプリコーディング行列との間における相関レベルに基づき、サブセットの大きさと前記PMIの情報をフィードバックする少なくとも一つ以上の端末と、
多数の端末からフィードバックされたサブセットの大きさと前記PMIの情報に基づいて、前記サブセットの大きさの情報を前記隣接基地局と交換し、サービング基地局と前記隣接基地局のプリコーディングを調整するサービング基地局と
を含むことを特徴とするシステム。 - 前記PMIは、隣接基地局に干渉を最も大きく起こす第1PMIであるか又は前記隣接基地局に干渉を最も小さく起こす第2PMIであることを特徴とする請求項1記載の方法。
- 前記PMIそして前記コードブック内の他のプリコーディング行列との間における相関値をそれぞれ決定する過程と、
前記相関値を降順に整列する過程と
を更に含むことを特徴とする請求項1に記載の方法。 - 前記サブセットは、多数のrecommended プリコーディング行列であるとともに、多数のrestricted プリコーディング行列であることを特徴とする請求項1記載の方法。
- 前記サブセットの大きさは、2つの固定された相関レベル(n1、n2)の一つであることを特徴とする請求項1記載の方法。
- 前記PMIは、基地局から受信されたフィードバックポーリングマップ情報(Feedback Polling A−MAP IE)から指示されることを特徴とする請求項1に記載の方法。
- 前記サブセットの大きさは、2つの固定された相関レベル(n1、n2)の一つであることを特徴とする請求項2に記載の方法。
- 前記隣接基地局と調整された少なくとも一つ以上のPMI使用をビットマップで放送する過程を更に含むことを特徴とする請求項2に記載の方法。
- 前記端末は、PMIを決定し、
前記PMIと、前記コードブック内の他のプリコーディング行列との間における相関値からの相関レベルに基づいてPMIサブセットの大きさを決定し、
前記サブセットの大きさと前記PMIを指示する情報をフィードバックすることを特徴とする請求項3に記載のシステム。 - 前記端末は、前記PMIそして前記コードブック内の他のプリコーディング行列との間における相関値をそれぞれ決定し、
前記相関値を降順に整列することを特徴とする請求項3に記載のシステム。 - 前記端末は、基地局から受信されたフィードバックポーリングマップ情報に基づき、PMIを決定することを特徴とする請求項3に記載のシステム。
- 前記PMIは、隣接基地局に干渉を最も大きく起こす第1PMIであるか又は隣接基地局に干渉を最も小さく起こす第2PMIであることを特徴とする請求項3記載のシステム。
- 前記サブセットは、多数のrecommendedプリコーディング行列であるとともに多数のrestrictedプリコーディング行列であることを特徴とする請求項3記載のシステム。
- 前記サブセットの大きさは、2つの固定された相関レベル(n1、n2)の一つであることを特徴とする請求項3記載のシステム。
- 多重アンテナシステムにおける干渉緩和のために制御情報を送信する干渉基地局(BS)の動作方法であって、
プリコーディング行列インデックス(Precoding Matrix Index:PMI)と、対応するBSからプリコーディング行列のサブセットの大きさを受信する過程であって、前記サブセットの大きさは、干渉を緩和するために使用される多数のプリコーディング行列を指示する、過程と、
前記サブセットの大きさと前記PMIを使用して前記サブセットを決定する過程と
を有する動作方法。 - 多重アンテナシステムにおける端末(MS)のための装置であって、
隣接基地局(BS)から干渉を緩和するプリコーディング行列インデックス(PMI)を決定し、前記PMIとコードブック内の他の各プリコーディング行列との間の相関値に基づいて、所定の大きさ間でプリコーディング行例のサブセットの大きさを決定するように構成された制御部であって、前記サブセットの大きさは、干渉を緩和するために使用される多数のプリコーディング行列を指示する、制御部と、
前記PMIとサブセットの大きさを有する情報をフィードバックするように構成された送信機と
を有する装置。 - 多重アンテナシステムにおける基地局(BS)のための装置であって、
プリコーディング行列インデックス(PMI)と、少なくとも一又は二以上の端末からプリコーディング行列のサブセットの大きさを受信するように構成された受信機であって、前記サブセットの大きさは干渉を緩和するために使用される多数のプリコーディング行列を指示する、受信機と、
前記サブセットの大きさの情報を隣接基地局と交換するように構成されたバックホール通信ユニットと、
前記隣接基地局のプリコーディングを調整するように構成された制御部と
を有する装置。 - 多重アンテナシステムにおける基地局(BS)のための装置であって、
プリコーディング行列インデックス(PMI)と、対応基地局からプリコーディング行列のサブセットの大きさを受信するように構成されたバックホール通信ユニットであって、前記サブセットの大きさは干渉を緩和するために使用される多数のプリコーディング行列を指示する、バックホール通信ユニットと、
前記サブセットの大きさと前記PMIを使用して前記サブセットを決定するように構成された制御部と
を有する装置。
Applications Claiming Priority (7)
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KR20090020880 | 2009-03-11 | ||
KR10-2009-0020880 | 2009-03-11 | ||
KR20090037359 | 2009-04-28 | ||
KR10-2009-0037359 | 2009-04-28 | ||
KR1020090055371A KR101587005B1 (ko) | 2009-03-11 | 2009-06-22 | 다중안테나시스템에서 간섭완화를 위한 제어정보를 전송하기 위한 방법 및 장치 |
KR10-2009-0055371 | 2009-06-22 | ||
PCT/KR2010/001525 WO2010104343A2 (en) | 2009-03-11 | 2010-03-11 | Method and apparatus for transmitting control information for interference mitigation in multiple antenna system |
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JP2012520602A JP2012520602A (ja) | 2012-09-06 |
JP5570080B2 true JP5570080B2 (ja) | 2014-08-13 |
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EP (1) | EP2406892B1 (ja) |
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KR (1) | KR101587005B1 (ja) |
CN (1) | CN102349240B (ja) |
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WO2010104343A2 (en) | 2010-09-16 |
US9008213B2 (en) | 2015-04-14 |
WO2010104343A3 (en) | 2010-12-09 |
EP2406892A4 (en) | 2015-11-18 |
KR20100102512A (ko) | 2010-09-24 |
EP2406892A2 (en) | 2012-01-18 |
CN102349240A (zh) | 2012-02-08 |
TW201126941A (en) | 2011-08-01 |
CN102349240B (zh) | 2016-05-25 |
US20100232539A1 (en) | 2010-09-16 |
JP2012520602A (ja) | 2012-09-06 |
KR101587005B1 (ko) | 2016-02-02 |
EP2406892B1 (en) | 2018-01-10 |
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