JP2014515907A - 多重入出力(mimo)のための空間チャネル状態情報のフィードバック方法およびシステム - Google Patents
多重入出力(mimo)のための空間チャネル状態情報のフィードバック方法およびシステム Download PDFInfo
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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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
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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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
- H04B7/0645—Variable feedback
- H04B7/065—Variable contents, e.g. long-term or short-short
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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
- H04B7/0658—Feedback reduction
- H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
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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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
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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
- H04L1/0001—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
- 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
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Radio Transmission System (AREA)
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Abstract
【選択図】図1
Description
Claims (18)
- UEおよび一つ以上のセルを接続する空間チャネルについて、一つ以上の空間チャネルの空間CSIのためのフィードバック方法であって、
複数の送信アンテナを、サブチャネルにそれぞれ対応する複数のサブセットに分割するステップと、
各サブチャネルの空間CSIを測定するステップと、
サブチャネルごとに空間CSIを分解し、送信アンテナの対応するサブセットにおける空間識別情報の特性を示すサブチャネルごとの第1成分CSIと、対応する受信機における空間識別情報の特性を示すサブチャネルごとの第2成分CSIと、の少なくとも二つの成分CSIをサブチャネルごとに得るステップと、
サブチャネルごとの前記成分CSIを、フィードバックとして提供するステップと、
を含むフィードバック方法。 - サブチャネルごとの前記成分CSIは、ベクトルまたは行列の一つとして表される請求項1に記載のフィードバック方法。
- 前記分解することは、行列の乗算を含む請求項1に記載のフィードバック方法。
- 少なくとも一つのコードブックを使用して、サブチャネルごとの成分CSIを少なくとも二つ量子化するステップと、
サブチャネルごとの量子化した成分CSIを、フィードバックとして提供するステップと、
をさらに有する請求項1に記載のフィードバック方法。 - 少なくとも二つの対応するインデックスが、短期サブバンドである請求項4に記載のフィードバック方法。
- 対応する受信機の実行を考慮する一方、サブチャネルごとの空間CSIを得るステップをさらに有する請求項1に記載のフィードバック方法。
- 空間CSIを得るステップは、特異値分解を含む請求項6に記載のフィードバック方法。
- チャネルごとの前記成分CSIをフィードバックとして提供するステップは、MIMOプリコーディングのための一つ以上のコードブックを使用するステップを含む請求項1に記載のフィードバック方法。
- サブチャネルごとの成分CSIを使用することによって、合成空間CSIを決定するステップをさらに含む請求項1に記載のフィードバック方法。
- 複数のUEおよび複数の送信アンテナを接続する空間チャネルの空間チャネル状態情報のためのフィードバックシステムであって、
相互間に一つ以上の空間サブチャネル接続を確立する、一つ以上のUEおよび一つ以上のセグメントの送信機の複数の送信アンテナと、ここで、サブチャネルごとの空間CSIが、空間サブチャネル接続に対応し、
サブチャネルごとの少なくとも二つの成分CSI、すなわち、送信機における空間識別情報の特性を示す第1成分CSIと受信機における空間識別情報の特性を示す第2成分とに、サブチャネルごとの前記空間CSIを分解する分解手段と、
フィードバックとして、サブチャネルごとに少なくとも二つの成分CSIを提供する提供手段と、
を有するフィードバックシステム。 - 複数のアンテナに対応する合成空間CSIを決定する決定手段をさらに有する請求項10に記載のフィードバックシステム。
- ベクトルまたは行列として、サブチャネルごとの成分CSIを表す手段をさらに有する請求項10に記載のフィードバックシステム。
- 前記分解手段は、行列の乗算するように構成されている請求項10に記載のフィードバックシステム。
- 少なくとも一つのコードブックを使用して、サブチャネルごとの成分CSIを少なくとも二つ量子化する量子化手段と、
サブチャネルごとの量子化した成分CSIを、フィードバックとして提供する提供手段と、
をさらに有する請求項10に記載のフィードバックシステム。 - サブチャネルの少なくとも二つの対応するインデックスが、短期サブバンドである請求項14に記載のフィードバックシステム。
- 受信機の実行を考慮する一方、サブチャネルごとの空間CSIを得るための取得手段をさらに有する請求項10に記載のフィードバックシステム。
- 前記取得手段は、特異値分解するように構成されている請求項16に記載のフィードバックシステム。
- サブチャネルごとの量子化した成分CSIを、フィードバックとして提供する提供手段は、MIMOプリコーディングのための一つ以上のコードブックを使用するように構成されている請求項10に記載のフィードバックシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161477802P | 2011-04-21 | 2011-04-21 | |
US61/477,802 | 2011-04-21 | ||
PCT/US2012/033981 WO2012145342A2 (en) | 2011-04-21 | 2012-04-18 | Method and system for spatial channel state information feedback for multiple-input multiple-output (mimo) |
Publications (2)
Publication Number | Publication Date |
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JP2014515907A true JP2014515907A (ja) | 2014-07-03 |
JP5865485B2 JP5865485B2 (ja) | 2016-02-17 |
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JP2014506492A Expired - Fee Related JP5865485B2 (ja) | 2011-04-21 | 2012-04-18 | 多重入出力(mimo)のための空間チャネル状態情報のフィードバック方法およびシステム |
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US (1) | US20140056167A1 (ja) |
EP (1) | EP2700177A4 (ja) |
JP (1) | JP5865485B2 (ja) |
KR (1) | KR101580380B1 (ja) |
CN (1) | CN103493393B (ja) |
WO (1) | WO2012145342A2 (ja) |
Families Citing this family (7)
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EP2837102B1 (en) * | 2012-04-12 | 2016-11-16 | Nokia Solutions and Networks Oy | Method of reporting channel state information |
CN103812545B (zh) * | 2012-11-06 | 2018-11-16 | 上海诺基亚贝尔股份有限公司 | 信道状态信息的反馈方法与装置 |
EP3672126B1 (en) * | 2013-05-31 | 2021-09-22 | QUALCOMM Incorporated | Linear precoding in full-dimensional mimo systems |
US9350444B2 (en) * | 2013-08-22 | 2016-05-24 | Broadcom Corporation | Wireless communication device with switched polarization and methods for use therewith |
KR102215523B1 (ko) * | 2014-03-27 | 2021-02-15 | 삼성전자주식회사 | 무선 통신 시스템에서 채널 정보를 피드백하기 위한 장치 및 방법 |
US10103798B2 (en) * | 2016-09-14 | 2018-10-16 | Samsung Electronics Co., Ltd. | Method and apparatus to enable channel compression in advanced wireless communication systems |
US10924162B2 (en) | 2017-05-05 | 2021-02-16 | At&T Intellectual Property I, L.P. | Facilitation of incremental feedback for 5G or other next generation network |
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- 2012-04-18 KR KR1020137030616A patent/KR101580380B1/ko active IP Right Grant
- 2012-04-18 WO PCT/US2012/033981 patent/WO2012145342A2/en active Application Filing
- 2012-04-18 EP EP12774521.4A patent/EP2700177A4/en not_active Ceased
- 2012-04-18 JP JP2014506492A patent/JP5865485B2/ja not_active Expired - Fee Related
- 2012-04-18 US US14/111,935 patent/US20140056167A1/en not_active Abandoned
- 2012-04-18 CN CN201280018046.5A patent/CN103493393B/zh active Active
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Also Published As
Publication number | Publication date |
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WO2012145342A2 (en) | 2012-10-26 |
CN103493393B (zh) | 2018-02-09 |
KR20140023371A (ko) | 2014-02-26 |
US20140056167A1 (en) | 2014-02-27 |
EP2700177A2 (en) | 2014-02-26 |
EP2700177A4 (en) | 2014-10-08 |
CN103493393A8 (zh) | 2016-07-06 |
KR101580380B1 (ko) | 2015-12-23 |
CN103493393A (zh) | 2014-01-01 |
WO2012145342A3 (en) | 2012-12-27 |
JP5865485B2 (ja) | 2016-02-17 |
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