JP2017522768A - 無線接続システムにおいてチャネル状態情報を送信する方法及び装置 - Google Patents
無線接続システムにおいてチャネル状態情報を送信する方法及び装置 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
- H04B7/0413—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
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
-
- 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
- H04B7/0479—Special codebook structures directed to feedback optimisation for multi-dimensional arrays, e.g. horizontal or vertical pre-distortion matrix index [PMI]
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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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- 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
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Abstract
Description
Claims (14)
- 大規模(Massive)MIMO(Multiple Input Multiple Output)を支援する無線接続システムにおいて端末がチャネル状態情報(CSI)を送信する方法であって、
CSI報告のためのCSI設定情報を受信するステップと、
前記CSI設定情報に基づいて、CSI、及び前記大規模MIMOによる全体チャネルのうち、前記CSIに対応する部分チャネルに対する識別情報を送信するステップと
を有する、チャネル状態情報送信方法。 - 前記識別情報が第1値であるとき、前記部分チャネルは、前記大規模MIMOによるアンテナ配列のうち最初の列のアンテナに対応し、
前記識別情報が第2値であるとき、前記部分チャネルは、前記大規模MIMOによる前記アンテナ配列のうち最初の行のアンテナに対応する、請求項1に記載のチャネル状態情報送信方法。 - 前記識別情報が第1値であるとき、前記部分チャネルはシングルコードブックと関連付けられ、
前記識別情報が第2値であるとき、前記部分チャネルはデュアルコードブックと関連付けられる、請求項1に記載のチャネル状態情報送信方法。 - 前記識別情報が第1値であるとき、前記部分チャネルは、第1部分チャネルと第2部分チャネルのフィードバック頻度に対する比率が第1比率値を有するものを示し、
前記識別情報が第2値であるとき、前記部分チャネルは、第1部分チャネルと第2部分チャネルのフィードバック頻度に対する比率が第2比率値を有するものを示す、請求項1に記載のチャネル状態情報送信方法。 - 前記識別情報は、前記CSIが広帯域PMI(Precoding Matrix Indicator)である場合にのみ前記CSIと共に送信され、前記CSIが狭帯域PMIである場合には共に送信されない、請求項1に記載のチャネル状態情報送信方法。
- 前記識別情報はRI(Rank Indicator)と共にフィードバックされ、アップデートされた前記識別情報が前記RIと共に送信されるまで、同一の部分チャネルに対応するPMI(Precoding Matrix Indicator)が送信される、請求項1に記載のチャネル状態情報送信方法。
- 前記部分チャネル情報は、PCI(Partial CSI Indicator)を含む、請求項1に記載のチャネル状態情報送信方法。
- 大規模(Massive)MIMO(Multiple Input Multiple Output)を支援する無線接続システムにおいてチャネル状態情報(CSI)を送信する端末であって、
RF(Radio Frequency)ユニットと、
プロセッサと、
を備え、
前記プロセッサは、
CSI報告のためのCSI設定情報を受信し、
前記CSI設定情報に基づいて、CSI、及び前記大規模MIMOによる全体チャネルのうち、前記CSIに対応する部分チャネルに対する識別情報を送信するように構成される、端末。 - 前記識別情報が第1値であるとき、前記部分チャネルは、前記大規模MIMOによるアンテナ配列のうち最初の列のアンテナに対応し、
前記識別情報が第2値であるとき、前記部分チャネルは、前記大規模MIMOによる前記アンテナ配列のうち最初の行のアンテナに対応する、請求項8に記載の端末。 - 前記識別情報が第1値であるとき、前記部分チャネルはシングルコードブックと関連付けられ、
前記識別情報が第2値であるとき、前記部分チャネルはデュアルコードブックと関連付けられる、請求項8に記載の端末。 - 前記識別情報が第1値であるとき、前記部分チャネルは、第1部分チャネルと第2部分チャネルのフィードバック頻度に対する比率が第1比率値を有するものを示し、
前記識別情報が第2値であるとき、前記部分チャネルは、第1部分チャネルと第2部分チャネルのフィードバック頻度に対する比率が第2比率値を有するものを示す、請求項8に記載の端末。 - 前記識別情報は、前記CSIが広帯域PMI(Precoding Matrix Indicator)である場合にのみ前記CSIと共に送信され、前記CSIが狭帯域PMIである場合には共に送信されない、請求項8に記載の端末。
- 前記識別情報は、RI(Rank Indicator)と共にフィードバックされ、アップデートされた前記識別情報が前記RIと共に送信されるまで、同一の部分チャネルに対応するPMI(Precoding Matrix Indicator)が送信される、請求項8に記載の端末。
- 前記部分チャネル情報はPCI(Partial CSI Indicator)を含む、請求項8に記載の端末。
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US201462028306P | 2014-07-23 | 2014-07-23 | |
US62/028,306 | 2014-07-23 | ||
PCT/KR2015/007668 WO2016013882A1 (ko) | 2014-07-23 | 2015-07-23 | 무선 접속 시스템에서 채널상태정보를 전송하는 방법 및 장치 |
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JP (1) | JP6518268B2 (ja) |
KR (1) | KR102014797B1 (ja) |
CN (1) | CN106537809B (ja) |
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JP6969633B2 (ja) * | 2016-03-30 | 2021-11-24 | 日本電気株式会社 | 基地局およびueによって実行される方法 |
EP3414960A4 (en) | 2016-03-30 | 2019-10-23 | Nec Corporation | METHOD AND DEVICES FOR SENDING AND RECEIVING REFERENCE SIGNALS |
JP7160165B2 (ja) * | 2016-03-30 | 2022-10-25 | 日本電気株式会社 | 基地局およびueによって実行される方法、基地局、並びにue |
CN108023849A (zh) * | 2016-11-04 | 2018-05-11 | 北京三星通信技术研究有限公司 | 一种信道状态信息的汇报方法和装置 |
BR112019018627A2 (pt) | 2017-03-14 | 2020-04-07 | Guangdong Oppo Mobile Telecommunications Corp Ltd | método de transmissão de sinal de uplink e dispositivo relativo |
KR102543091B1 (ko) | 2018-06-15 | 2023-06-14 | 삼성전자주식회사 | 무선 통신 시스템에서 통합형 빔포밍을 위한 장치 및 방법 |
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EP3174218A4 (en) | 2018-03-14 |
EP3174218A1 (en) | 2017-05-31 |
WO2016013882A1 (ko) | 2016-01-28 |
KR20170002404A (ko) | 2017-01-06 |
CN106537809B (zh) | 2020-01-10 |
US20170195017A1 (en) | 2017-07-06 |
AU2015294786B2 (en) | 2018-01-25 |
JP6518268B2 (ja) | 2019-05-22 |
CN106537809A (zh) | 2017-03-22 |
KR102014797B1 (ko) | 2019-08-27 |
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