JP5531354B2 - 無線通信システムにおけるチャネル情報フィードバックのためのシステムおよび方法 - Google Patents
無線通信システムにおけるチャネル情報フィードバックのためのシステムおよび方法 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
- H04B7/04—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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0478—Special codebook structures directed to feedback optimisation
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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
- H04B7/0663—Feedback reduction using vector or matrix manipulations
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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
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- 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
- H04L25/03891—Spatial equalizers
- H04L25/03898—Spatial equalizers codebook-based design
- H04L25/0391—Spatial equalizers codebook-based design construction details of matrices
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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
- H04B7/0417—Feedback 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
- H04B7/0413—MIMO systems
- H04B7/0426—Power distribution
- H04B7/043—Power distribution using best eigenmode, e.g. beam forming or beam steering
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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
- H04B7/0426—Power distribution
- H04B7/0434—Power distribution using multiple eigenmodes
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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
- H04B7/0482—Adaptive codebooks
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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
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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
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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- 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
- H04L25/0202—Channel estimation
- H04L25/021—Estimation of channel covariance
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- 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
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
Description
R = s1u1u’1 + s2u2u’2 + ΛsNtuNtu’Nt
と定義される可能性があり、ここで、s1、s2、...、sNtは、大きい順の負でない実数値の固有値であり、u1、u2、...、uNtは、対応する固有ベクトルであり、{si, ui}は、しばしば、チャネル相関行列Rのi番目の固有モード(eigenmode)と呼ばれる。最適な送信機(例えば、BS)の性能は、チャネル相関行列Rの固有モードに依存し得る。したがって、固有モード{si, ui}は、送信機にとってチャネル相関行列Rよりも重要である。したがって、チャネル相関行列Rよりもむしろ固有モードが、BSにフィードバックされ得る。
105 基地局
110 移動局
115 チャネル
116 フィードバックチャネル
120 プロセッサ
125 送信機
126 送信アンテナ
130 受信機
131 受信アンテナ
140 プロセッサ
145 受信機
146 受信アンテナ
150 送信機
151 送信アンテナ
Claims (7)
- コントローラによって送信されたパイロットを受信するステップと、
前記パイロットに基づいて前記コントローラと通信デバイスの間のチャネルに関するチャネル推定値を計算するステップと、
前記チャネル推定値に基づいて前記チャネルに関するチャネル相関行列を計算するステップと、
第1のフィードバック情報として、前記コントローラに前記チャネル相関行列の階数を下げた表現を送信するステップと、
前記チャネル相関行列の前記階数を下げた表現に基づいて第1のコードブックを適応させるステップと、
前記適応された第1のコードブックを用いて前記チャネルの表現を計算するステップと、
第2のフィードバック情報として、前記チャネルの前記表現を送信するステップと、
前記第1のフィードバック情報および前記第2のフィードバック情報に基づいてビームフォーミングされた伝送を受信するステップとを含み、
前記通信デバイスが移動局であり、前記コントローラが基地局である、通信デバイスのオペレーションのための方法。 - 前記チャネル相関行列は、時間領域のチャネル相関行列または周波数領域のチャネル相関行列を含む請求項1に記載の方法。
- 第1のコードブックを適応させるステップは、第1のコードブックの行列に前記チャネル相関行列を乗算するステップ、または前記第1のコードブックの行列に前記チャネル相関行列のべき乗を乗算するステップを含む請求項1に記載の方法。
- チャネル相関行列を計算するステップは、前記チャネル相関行列の階数を下げた表現を計算するステップをさらに含む請求項1に記載の方法。
- 階数を下げた表現を計算するステップは、
前記チャネル相関行列の固有値分解を実行するステップと、
前記チャネル相関行列の前記固有値分解の結果からn個の主要な固有成分を前記チャネル相関行列の前記階数を下げた表現として選択するステップとを含み、ここで、nは、整数であり、前記結果の固有成分の総数よりも小さい請求項4に記載の方法。 - nは2に等しく、階数を下げた表現を計算するステップは、前記n個の主要な固有成分を量子化するステップをさらに含む請求項5に記載の方法。
- 前記チャネル相関行列の階数を下げた表現を計算するステップは、前記チャネル相関行列の前記階数を下げた表現の関数を計算するステップをさらに含む請求項4に記載の方法。
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
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US15968909P | 2009-03-12 | 2009-03-12 | |
US61/159,689 | 2009-03-12 | ||
US16259109P | 2009-03-23 | 2009-03-23 | |
US61/162,591 | 2009-03-23 | ||
US23411309P | 2009-08-14 | 2009-08-14 | |
US61/234,113 | 2009-08-14 | ||
US12/722,450 | 2010-03-11 | ||
US12/722,450 US8649456B2 (en) | 2009-03-12 | 2010-03-11 | System and method for channel information feedback in a wireless communications system |
PCT/CN2010/071023 WO2010102583A1 (en) | 2009-03-12 | 2010-03-12 | System and method for channel information feedback in a wireless communications system |
Publications (2)
Publication Number | Publication Date |
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JP2012520040A JP2012520040A (ja) | 2012-08-30 |
JP5531354B2 true JP5531354B2 (ja) | 2014-06-25 |
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JP2011553270A Active JP5531354B2 (ja) | 2009-03-12 | 2010-03-12 | 無線通信システムにおけるチャネル情報フィードバックのためのシステムおよび方法 |
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US (2) | US8649456B2 (ja) |
EP (2) | EP2406979B1 (ja) |
JP (1) | JP5531354B2 (ja) |
CN (1) | CN102342143B (ja) |
WO (1) | WO2010102583A1 (ja) |
Families Citing this family (80)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8670390B2 (en) * | 2000-11-22 | 2014-03-11 | Genghiscomm Holdings, LLC | Cooperative beam-forming in wireless networks |
US10644916B1 (en) | 2002-05-14 | 2020-05-05 | Genghiscomm Holdings, LLC | Spreading and precoding in OFDM |
US11381285B1 (en) | 2004-08-02 | 2022-07-05 | Genghiscomm Holdings, LLC | Transmit pre-coding |
US8116391B2 (en) | 2006-05-26 | 2012-02-14 | Wi-Lan Inc. | Quantization of channel state information in multiple antenna systems |
US8125884B1 (en) * | 2007-07-11 | 2012-02-28 | Marvell International Ltd. | Apparatus for pre-coding using multiple codebooks and associated methods |
US8234546B2 (en) | 2008-04-21 | 2012-07-31 | Wi-Lan, Inc. | Mitigation of transmission errors of quantized channel state information feedback in multi antenna systems |
US8233926B2 (en) * | 2008-05-22 | 2012-07-31 | Futurewei Technologies, Inc. | Spatial mode adaptation at the cell edge using interferer spatial correlation |
US8649456B2 (en) | 2009-03-12 | 2014-02-11 | Futurewei Technologies, Inc. | System and method for channel information feedback in a wireless communications system |
US8675627B2 (en) * | 2009-03-23 | 2014-03-18 | Futurewei Technologies, Inc. | Adaptive precoding codebooks for wireless communications |
US8750089B2 (en) * | 2010-01-05 | 2014-06-10 | Broadcom Corporation | Method and system for iterative discrete fourier transform (DFT) based channel estimation using minimum mean square error (MMSE) techniques |
US8886116B2 (en) | 2010-01-15 | 2014-11-11 | Lg Electronics Inc. | Link adaptation method and apparatus in wireless LAN system |
US20110243207A1 (en) * | 2010-04-05 | 2011-10-06 | Futurewei Technologies, Inc. | System and Method for Adapting Codebooks |
JP5706514B2 (ja) * | 2010-04-06 | 2015-04-22 | アルカテル−ルーセント | アンテナ・アレイ用の相関行列フィードバックの方法およびシステム |
CN102725967B (zh) * | 2010-04-07 | 2015-08-05 | 上海贝尔股份有限公司 | 用于信息反馈以及预编码的方法和装置 |
GB2479377B (en) * | 2010-04-07 | 2013-08-14 | Toshiba Res Europ Ltd | Dual indicator scheme for channel state information feedback |
WO2011124023A1 (zh) * | 2010-04-07 | 2011-10-13 | 上海贝尔股份有限公司 | 转换装置和方法 |
BR112012025271A2 (pt) * | 2010-04-07 | 2016-06-21 | Alcatel Lucent | método e aparelho para retroinformar e construir uma matriz de correlação em sistemas de múltiplas entradas e múltiplas saídas |
US9094075B2 (en) | 2010-05-06 | 2015-07-28 | Alcatel Lucent | Methods and apparatuses for generating and feeding back high rank adaptive codebook in multiple input multiple output system |
US8594215B2 (en) * | 2010-06-11 | 2013-11-26 | Alcatel Lucent | MIMO system having a plurality of service antennas for data transmission thereof |
CN102291216A (zh) * | 2010-06-17 | 2011-12-21 | 株式会社Ntt都科摩 | 一种用户设备及信道状态信息反馈方法 |
US20110310870A1 (en) * | 2010-06-21 | 2011-12-22 | Qualcomm Incorporated | Hybrid time and frequency domain csi feedback scheme |
WO2012039640A1 (en) * | 2010-09-24 | 2012-03-29 | Intel Corporation | Device, system and method of multi-user multi-input-multi-output wireless communication |
CN102457349B (zh) * | 2010-10-22 | 2015-01-28 | 中兴通讯股份有限公司 | 一种多点协作传输接收系统测量上报方法及系统 |
US8611449B2 (en) | 2010-11-15 | 2013-12-17 | FutureWei Technologes, Inc. | Method and apparatus for demodulation of a reference signal |
US8958388B2 (en) | 2010-11-15 | 2015-02-17 | Futurewei Technologies, Inc. | System and method for measuring channel state information in a communications system |
US20140023033A1 (en) * | 2011-04-13 | 2014-01-23 | Lg Electronics Inc. | Method and apparatus for transceiving channel status information and transceiver |
CN103609053A (zh) * | 2011-04-26 | 2014-02-26 | 中兴通讯股份有限公司 | 用于多输入多输出(mimo)的空间信道状态信息反馈的方法和系统 |
CN102984724B (zh) * | 2011-09-06 | 2017-12-05 | 上海优尔蓝信息科技股份有限公司 | 一种反馈分析方法及系统 |
US9402264B2 (en) * | 2011-09-30 | 2016-07-26 | Intel Corporation | Methods to transport internet traffic over multiple wireless networks simultaneously |
US20130083863A1 (en) * | 2011-10-04 | 2013-04-04 | Samsung Electronics Co., Ltd. | Apparatus and method for low complexity feedback in a mimo wireless network |
KR101921669B1 (ko) * | 2011-12-27 | 2018-11-27 | 삼성전자주식회사 | FDD 모드로 동작하는 Massive MIMO를 사용하는 무선통신 시스템에서 제한된 정보량을 이용하여 채널 상태 정보를 피드백 하기 위한 장치 및 방법 |
WO2013129504A1 (ja) * | 2012-02-29 | 2013-09-06 | 京セラ株式会社 | 通信制御方法、ユーザ端末、及び基地局 |
US9088315B2 (en) * | 2012-04-18 | 2015-07-21 | Intel Mobile Communications GmbH | Radio communications system and method performed therein |
WO2013192527A1 (en) * | 2012-06-21 | 2013-12-27 | Board Of Regents, The University Of Texas System | Systems and methods for multiplicative superposition for mimo broadcast channels |
US9456369B2 (en) * | 2012-07-31 | 2016-09-27 | Hewlett Packard Enterprise Development Lp | Management of modulation and coding scheme implementation |
US9439096B2 (en) * | 2012-08-13 | 2016-09-06 | Samsung Electronics Co., Ltd. | Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems |
CN103731233B (zh) * | 2012-10-12 | 2018-07-03 | 华为技术有限公司 | 码字反馈方法及接收机 |
US9351128B2 (en) * | 2013-01-04 | 2016-05-24 | Qualcomm Incorporated | Selectively adjusting a rate or delivery format of media being delivered to one or more multicast/broadcast single frequency networks for transmission |
CN103944667B (zh) * | 2013-01-18 | 2018-01-30 | 上海诺基亚贝尔股份有限公司 | 量化信道状态信息的方法与装置 |
KR102048880B1 (ko) * | 2013-04-29 | 2019-11-26 | 삼성전자주식회사 | 다단 빔포밍 시스템을 위한 통신 방법 및 장치 |
US8982976B2 (en) * | 2013-07-22 | 2015-03-17 | Futurewei Technologies, Inc. | Systems and methods for trellis coded quantization based channel feedback |
US20150092825A1 (en) * | 2013-09-27 | 2015-04-02 | Qualcomm Incorporated | Self-test using internal feedback for transmit signal quality estimation |
KR20150044379A (ko) * | 2013-10-16 | 2015-04-24 | 삼성전자주식회사 | 다중안테나 다중사용자 무선 통신시스템을 위한 확률적 송수신 방법 및 장치 |
US9762995B2 (en) * | 2013-10-16 | 2017-09-12 | Samsung Electronics Co., Ltd. | Stochastic transmission/reception method and apparatus for MU-MIMO scheme in MIMO radio communication system |
KR102384585B1 (ko) * | 2013-11-19 | 2022-04-11 | 삼성전자주식회사 | 방송 혹은 통신 시스템에서 스케일러블 비디오 코딩 방법 및 장치 |
KR101881426B1 (ko) * | 2014-01-29 | 2018-07-24 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 업링크 액세스 방법, 장치, 및 시스템 |
CN104202073A (zh) * | 2014-03-04 | 2014-12-10 | 中兴通讯股份有限公司 | 信道信息的反馈方法、导频及波束发送方法、系统及装置 |
US9444576B2 (en) * | 2014-05-09 | 2016-09-13 | Qualcomm Incorporated | Updates to MU-MIMO rate adaptation algorithm |
EP3145107B1 (en) | 2014-05-13 | 2020-02-12 | LG Electronics Inc. | Method for allocating resource for user by mimo transmitter and method for scheduling user, to which data is to be transmitted, by using resource |
KR102258289B1 (ko) * | 2014-05-22 | 2021-05-31 | 삼성전자 주식회사 | 이차원 배열 안테나를 사용하는 이동통신 시스템에서의 채널 피드백의 생성 및 전송 방법 및 장치 |
EP3155774B1 (en) | 2014-06-10 | 2018-08-08 | Telefonaktiebolaget LM Ericsson (publ) | Systems and methods for adaptively restricting csi reporting in multi antenna wireless communications systems utilizing unused bit resources |
US10498405B2 (en) * | 2014-10-29 | 2019-12-03 | Telefonaktiebolaget L M Ericsson (Publ) | Codebook restriction |
CN105846870B (zh) * | 2015-01-12 | 2020-10-23 | 索尼公司 | 用于多输入多输出无线通信系统的装置和方法 |
CN107615695B (zh) * | 2015-06-30 | 2020-02-21 | 华为技术有限公司 | 一种获取信道状态信息的方法、装置 |
CN106330273B (zh) * | 2015-07-03 | 2020-02-18 | 电信科学技术研究院 | 一种预编码方法及装置 |
US9401824B1 (en) * | 2015-09-24 | 2016-07-26 | Hong Kong Applied Science and Technology Research Institute Company Limited | Method and apparatus of channel estimation in multi-user massive MIMO systems |
KR20180098592A (ko) * | 2015-12-23 | 2018-09-04 | 노키아 솔루션스 앤드 네트웍스 오와이 | 다중-입력 및 다중-출력(mimo) 무선 네트워크들에 대한 희소 상관 매트릭스의 피드백 |
CN107017926B (zh) * | 2016-01-26 | 2021-09-07 | 索尼公司 | 非均匀天线阵列及其信号处理 |
US10284267B2 (en) * | 2016-03-11 | 2019-05-07 | Huawei Technologies Canada Co., Ltd. | System and method for reducing self-interference in a wireless resource |
US10847879B2 (en) | 2016-03-11 | 2020-11-24 | Huawei Technologies Canada Co., Ltd. | Antenna array structures for half-duplex and full-duplex multiple-input and multiple-output systems |
CN107222244B (zh) | 2016-03-16 | 2020-10-23 | 华为技术有限公司 | 一种信道信息上报方法、装置及系统 |
CN107370694A (zh) * | 2016-05-11 | 2017-11-21 | 北京信威通信技术股份有限公司 | 一种预编码码本生成方法和装置 |
CN107370525B (zh) | 2016-05-12 | 2021-03-30 | 华为技术有限公司 | 用于信道状态信息反馈的方法、基站、终端设备及系统 |
WO2017195183A1 (en) | 2016-05-13 | 2017-11-16 | Huawei Technologies Co., Ltd. | Precoding and channel state information acquisition for multi-stream transmissions in massive mimo systems |
US10454542B2 (en) * | 2016-11-04 | 2019-10-22 | Qualcomm Incorporated | Uplink MIMO design |
EP3331304B1 (en) * | 2016-12-02 | 2020-04-01 | Nokia Technologies Oy | Scheduling lte user equipment in the unlicensed band reducing interference on other nodes |
TWI627847B (zh) * | 2017-01-16 | 2018-06-21 | 瑞昱半導體股份有限公司 | 基於通道容量決定調變編碼方式的裝置及方法 |
US10637705B1 (en) | 2017-05-25 | 2020-04-28 | Genghiscomm Holdings, LLC | Peak-to-average-power reduction for OFDM multiple access |
US10243773B1 (en) | 2017-06-30 | 2019-03-26 | Genghiscomm Holdings, LLC | Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM |
CN109495148B (zh) | 2017-09-10 | 2021-08-31 | 华为技术有限公司 | 一种码本子集限制的方法 |
EP3711230A1 (en) * | 2017-11-13 | 2020-09-23 | Telefonaktiebolaget LM Ericsson (publ) | Methods and apparatus for transmitting and receiving control channel information |
WO2019099024A1 (en) * | 2017-11-17 | 2019-05-23 | Nokia Technologies Oy | Methods and apparatuses for multi quantization codebook for explicit channel state information feedback in new radio |
KR102517669B1 (ko) * | 2018-06-27 | 2023-04-05 | 삼성전자주식회사 | 무선 통신 방법 및 장치 |
KR20200076368A (ko) * | 2018-12-19 | 2020-06-29 | 주식회사 지씨티리써치 | Mimo 수신기에서의 효율적인 랭크 추출 방법 및 그 장치 |
US11917604B2 (en) | 2019-01-25 | 2024-02-27 | Tybalt, Llc | Orthogonal multiple access and non-orthogonal multiple access |
WO2020242898A1 (en) | 2019-05-26 | 2020-12-03 | Genghiscomm Holdings, LLC | Non-orthogonal multiple access |
CN110839204B (zh) * | 2019-12-23 | 2020-10-16 | 华中科技大学 | 一种irs辅助通信系统的通信优化方法及装置 |
WO2021206189A1 (ko) * | 2020-04-07 | 2021-10-14 | 엘지전자 주식회사 | 학습 기반의 신호 수신 방법 및 장치 |
US11387877B2 (en) | 2020-09-25 | 2022-07-12 | Samsung Electronics Co., Ltd. | Device and method using adaptive codebook for dual beamforming feedback and wireless communication system including the same |
CN117479316A (zh) * | 2022-07-18 | 2024-01-30 | 中兴通讯股份有限公司 | 一种信道状态信息的确定方法、电子设备和存储介质 |
Family Cites Families (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2154679B1 (en) | 1997-12-24 | 2016-09-14 | BlackBerry Limited | Method and apparatus for speech coding |
US6859503B2 (en) | 2001-04-07 | 2005-02-22 | Motorola, Inc. | Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel |
EP1255369A1 (en) | 2001-05-04 | 2002-11-06 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Link adaptation for wireless MIMO transmission schemes |
US6785341B2 (en) | 2001-05-11 | 2004-08-31 | Qualcomm Incorporated | Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information |
JP3708467B2 (ja) * | 2001-09-26 | 2005-10-19 | 株式会社日立製作所 | 表示装置 |
CA2502844A1 (en) | 2002-11-01 | 2004-05-21 | Interdigital Technology Corporation | Method for channel quality prediction for wireless communication systems |
DE10254384B4 (de) | 2002-11-17 | 2005-11-17 | Siemens Ag | Bidirektionales Signalverarbeitungsverfahren für ein MIMO-System mit einer rangadaptiven Anpassung der Datenübertragungsrate |
KR100575993B1 (ko) | 2003-08-07 | 2006-05-02 | 삼성전자주식회사 | 다중 송수신 안테나를 사용하는 이동통신 시스템에서 다중사용자를 위한 스케쥴링 방법 및 장치 |
US7317702B2 (en) | 2004-07-30 | 2008-01-08 | Lucent Technologies Inc. | Method and apparatus for enhancing performance of channel quality indicator (CQI) channel in wireless communications system |
US7289770B2 (en) | 2004-09-28 | 2007-10-30 | Intel Corporation | Compact feedback for closed loop MIMO |
GB2419786C (en) | 2004-10-27 | 2009-10-07 | Toshiba Res Europ Ltd | Multiple list link adaption |
US7684761B2 (en) * | 2004-11-04 | 2010-03-23 | Nokia Corporation | Closed-loop signalling method for controlling multiple transmit beams and correspondingly adapted transceiver devices |
US20070041322A1 (en) | 2005-01-12 | 2007-02-22 | Won-Joon Choi | Rate adaptation using semi-open loop technique |
CN101167267A (zh) | 2005-04-28 | 2008-04-23 | 松下电器产业株式会社 | 无线通信装置以及反馈信息生成方法 |
US7403745B2 (en) | 2005-08-02 | 2008-07-22 | Lucent Technologies Inc. | Channel quality predictor and method of estimating a channel condition in a wireless communications network |
CN1909402B (zh) | 2005-08-05 | 2011-06-15 | 松下电器产业株式会社 | 在空间相关mimo系统中使用的自适应传输方法和设备 |
CN1921463B (zh) | 2005-08-23 | 2010-05-05 | 中兴通讯股份有限公司 | 正交频分复用移动通信系统的信道估计方法和实现装置 |
KR101119281B1 (ko) | 2005-08-29 | 2012-03-15 | 삼성전자주식회사 | 무선 통신 시스템에서 채널 품질 정보 피드백 장치 및방법과 이를 이용한 스케줄링 장치 및 방법 |
US8385433B2 (en) * | 2005-10-27 | 2013-02-26 | Qualcomm Incorporated | Linear precoding for spatially correlated channels |
US7948959B2 (en) | 2005-10-27 | 2011-05-24 | Qualcomm Incorporated | Linear precoding for time division duplex system |
US7917176B2 (en) | 2006-02-14 | 2011-03-29 | Nec Laboratories America, Inc. | Structured codebook and successive beamforming for multiple-antenna systems |
US8493958B2 (en) | 2006-02-21 | 2013-07-23 | Qualcomm Incorporated | Flexible payload control in data-optimized communication systems |
US7894820B2 (en) | 2006-05-01 | 2011-02-22 | Intel Corporation | Channel feedback using channel state predictions based also on delays |
US7979075B2 (en) | 2006-05-03 | 2011-07-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Generation, deployment and use of tailored channel quality indicator tables |
US20150030058A9 (en) | 2006-05-17 | 2015-01-29 | Texas Instruments Inc. | Cqi feedback for mimo deployments |
JP5260842B2 (ja) | 2006-06-14 | 2013-08-14 | 日本電気株式会社 | 通信システム及びその方法並びにそれに用いる移動局及び基地局 |
TWI310641B (en) | 2006-07-18 | 2009-06-01 | Ind Tech Res Inst | Method and apparatus of dynamic channel assignment for a wireless network |
US20080026744A1 (en) | 2006-07-27 | 2008-01-31 | Nokia Corporation | Providing dynamically controlled CQI technique adapted for available signaling capacity |
JP4536767B2 (ja) | 2006-10-30 | 2010-09-01 | 株式会社エヌ・ティ・ティ・ドコモ | 受信装置、送信装置、及びmimo伝送における送信装置でのプリコーディングを制御する受信及び送信方法 |
CN101136718A (zh) | 2006-11-07 | 2008-03-05 | 中兴通讯股份有限公司 | 无线通信系统中多输入多输出的空间复用的预编码方法 |
CN101212281B (zh) | 2006-12-31 | 2011-10-26 | 华为技术有限公司 | 基于多输入多输出系统的通信方法及设备 |
CN101232356A (zh) | 2007-01-24 | 2008-07-30 | 华为技术有限公司 | Mimo系统中的预编码方法、系统和装置 |
US7957701B2 (en) | 2007-05-29 | 2011-06-07 | Alcatel-Lucent Usa Inc. | Closed-loop multiple-input-multiple-output scheme for wireless communication based on hierarchical feedback |
US7649831B2 (en) | 2007-05-30 | 2010-01-19 | Samsung Electronics Co., Ltd. | Multi-user MIMO feedback and transmission in a wireless communication system |
US7769098B2 (en) * | 2007-06-05 | 2010-08-03 | Texas Instruments Incorporated | Low complexity precoding matrix selection |
US7751494B2 (en) | 2007-06-05 | 2010-07-06 | Texas Instruments Incorporated | Reduced search space technique for codeword selection |
US20080317145A1 (en) * | 2007-06-25 | 2008-12-25 | Bruno Clerckx | Multiple input multiple output communication system and a method of adaptively generating codebook |
US9225397B2 (en) * | 2007-07-10 | 2015-12-29 | Texas Instruments Incorporated | Efficient rank and precoding matrix feedback for MIMO systems |
US8798183B2 (en) | 2007-08-13 | 2014-08-05 | Qualcomm Incorporated | Feedback and rate adaptation for MIMO transmission in a time division duplexed (TDD) communication system |
KR101507785B1 (ko) | 2007-08-16 | 2015-04-03 | 엘지전자 주식회사 | 다중 입출력 시스템에서, 채널품질정보를 송신하는 방법 |
CN101217304B (zh) | 2008-01-10 | 2013-01-30 | 北京邮电大学 | 一种多子信道的多输入多输出预编码处理方法 |
US8351455B2 (en) * | 2008-04-04 | 2013-01-08 | Futurewei Technologies, Inc. | System and method for multi-stage zero forcing beamforming in a wireless communications system |
US9001802B2 (en) | 2008-08-11 | 2015-04-07 | Lg Electronics Inc. | Method and apparatus for transmitting uplink signals using multi-antenna |
WO2010025203A1 (en) * | 2008-08-26 | 2010-03-04 | Futurewei Technologies, Inc. | System and method for wireless communications |
US8644408B2 (en) * | 2008-10-10 | 2014-02-04 | Qualcomm Incorporated | Method and apparatus for channel feedback in a wireless communication system |
US8432990B2 (en) * | 2008-10-14 | 2013-04-30 | Futurewei Technologies, Inc. | System and method for employing a six-bit rank 1 codebook for four transmit antennas |
US8565064B2 (en) * | 2008-12-15 | 2013-10-22 | Futurewei Technologies, Inc. | System and method for employing six-bit rank 1 and 2 codebooks for four transmit antennas |
US8649456B2 (en) * | 2009-03-12 | 2014-02-11 | Futurewei Technologies, Inc. | System and method for channel information feedback in a wireless communications system |
US8675627B2 (en) * | 2009-03-23 | 2014-03-18 | Futurewei Technologies, Inc. | Adaptive precoding codebooks for wireless communications |
US8243610B2 (en) * | 2009-04-21 | 2012-08-14 | Futurewei Technologies, Inc. | System and method for precoding codebook adaptation with low feedback overhead |
US20110103493A1 (en) * | 2009-11-02 | 2011-05-05 | Futurewei Technologies, Inc. | System and Method for Wireless Communications with Adaptive Codebooks |
US20110243207A1 (en) * | 2010-04-05 | 2011-10-06 | Futurewei Technologies, Inc. | System and Method for Adapting Codebooks |
US8630311B2 (en) * | 2010-05-10 | 2014-01-14 | Futurewei Technologies, Inc. | System and method for reporting quantized feedback information for adaptive codebooks |
US8855577B2 (en) * | 2011-01-21 | 2014-10-07 | Futurewei Technologies, Inc. | System and method for assisted open loop multiple input, multiple output communications |
-
2010
- 2010-03-11 US US12/722,450 patent/US8649456B2/en active Active
- 2010-03-12 WO PCT/CN2010/071023 patent/WO2010102583A1/en active Application Filing
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