JP5850872B2 - ユーザ装置及び基地局 - Google Patents
ユーザ装置及び基地局 Download PDFInfo
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- JP5850872B2 JP5850872B2 JP2013046024A JP2013046024A JP5850872B2 JP 5850872 B2 JP5850872 B2 JP 5850872B2 JP 2013046024 A JP2013046024 A JP 2013046024A JP 2013046024 A JP2013046024 A JP 2013046024A JP 5850872 B2 JP5850872 B2 JP 5850872B2
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- Prior art keywords
- matrix
- gain
- base station
- information
- phase
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Classifications
-
- 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
-
- 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
- H04B7/0417—Feedback 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
-
- 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
- H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—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 antenna switching
- H04B7/0608—Antenna selection according to transmission parameters
- H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
-
- 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
- H04B7/0617—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 for beam forming
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Description
W=WgainWphase
として規定される。
W=WphaseWgain
として規定される。
100 ユーザ装置
110 送受信部
120 コードブック格納部
130 チャネル測定部
140 コードブック選択部
200 基地局
Claims (7)
- MIMO(Multiple Input Multiple Output)伝送によって基地局と無線信号を通信する送受信部と、
前記MIMO伝送に利用される各プリコーディング行列を規定し、位相情報とゲイン情報とを表現するよう構成された所定のコードブックを格納するコードブック格納部と、
前記基地局の複数のアンテナから送信された各リファレンス信号に基づき各チャネル状態を測定するチャネル測定部と、
前記測定されたチャネル状態に基づき前記格納されているコードブックから前記基地局に通知すべきコードブックを選択し、前記選択したコードブックを特定するコードブックインデックスを含むフィードバック情報を前記基地局に通知するよう前記送受信部に指示するコードブック選択部と、を有するユーザ装置であって、
前記フィードバック情報は、前記位相情報と前記ゲイン情報とを表現した第1行列W 1 と、前記位相情報を表現した第2行列W 2 とを特定し、
前記プリコーディング行列は、W 1 W 2 により導出されるユーザ装置。 - 前記第1行列W1は、前記ゲイン情報を表す行列G1,G2と前記位相情報を示す行列X1,X2とのそれぞれの積G1X1,G2X2を対角成分に有する、請求項1記載のユーザ装置。
- 前記行列G1,G2は、対角成分が前記基地局から送信される各ビームに適用されるゲイン値を表す対角行列である、請求項2記載のユーザ装置。
- 前記第2行列W2は、前記基地局から送信されるビームを特定する行列Yと、前記複数のアンテナの位相シフト量を示す、請求項3記載のユーザ装置。
- 前記行列X1は、前記チャネル測定部により測定された広帯域又は長期のチャネル品質を示し、
前記行列X2は、前記チャネル測定部により測定された狭帯域又は短期のチャネル品質を示す、請求項2乃至4何れか一項記載のユーザ装置。 - 前記行列X1及びX2は、前記基地局から送信されるビームについて連続した位相シフト量を保持するよう規定される、請求項2乃至5何れか一項記載のユーザ装置。
- MIMO(Multiple Input Multiple Output)伝送によってユーザ装置と無線信号を通信する送受信部と、
前記ユーザ装置から受信したフィードバック情報のコードブックインデックスによって特定された位相情報とゲイン情報とに基づきプリコーディング行列を導出し、前記導出したプリコーディング行列に基づきプリコーディングウェイトを生成するプリコーディングウェイト生成部と、
前記ユーザ装置に送信する各ストリームに前記生成されたプリコーディングウェイトを適用することによって各アンテナに対する無線信号を生成し、前記生成した無線信号を対応するアンテナを介し送信するよう前記送受信部に指示するプリコーディング処理部と、を有する基地局であって、
前記フィードバック情報は、前記位相情報と前記ゲイン情報とを表現した第1行列W 1 と、前記位相情報を表現した第2行列W 2 とを特定し、
前記プリコーディング行列は、W 1 W 2 により導出される基地局。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013046024A JP5850872B2 (ja) | 2013-03-07 | 2013-03-07 | ユーザ装置及び基地局 |
CN201480012036.XA CN105009492B (zh) | 2013-03-07 | 2014-02-18 | 用户装置以及基站 |
PCT/JP2014/053733 WO2014136563A1 (ja) | 2013-03-07 | 2014-02-18 | ユーザ装置及び基地局 |
US14/771,219 US9391682B2 (en) | 2013-03-07 | 2014-02-18 | User equipment and base station |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013046024A JP5850872B2 (ja) | 2013-03-07 | 2013-03-07 | ユーザ装置及び基地局 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014175810A JP2014175810A (ja) | 2014-09-22 |
JP5850872B2 true JP5850872B2 (ja) | 2016-02-03 |
Family
ID=51491087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2013046024A Expired - Fee Related JP5850872B2 (ja) | 2013-03-07 | 2013-03-07 | ユーザ装置及び基地局 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9391682B2 (ja) |
JP (1) | JP5850872B2 (ja) |
CN (1) | CN105009492B (ja) |
WO (1) | WO2014136563A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016185749A1 (ja) * | 2015-05-15 | 2016-11-24 | ソニー株式会社 | 装置、方法、及びプログラム |
CN107046435B (zh) | 2016-02-05 | 2021-09-28 | 索尼公司 | 无线通信方法和无线通信装置 |
US10505600B2 (en) | 2016-03-31 | 2019-12-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and devices for quantizing beam phases for a precoder |
CN109450505B (zh) | 2016-05-13 | 2019-11-15 | 华为技术有限公司 | 一种信道信息发送方法、数据发送方法和设备 |
EP3480982B1 (en) | 2016-07-30 | 2020-06-24 | Huawei Technologies Co., Ltd. | Apparatus, method and system for channel information transmission |
CN108337026B (zh) | 2016-11-04 | 2019-03-26 | 华为技术有限公司 | 信息反馈方法、用户设备和网络设备 |
CN108282197B (zh) | 2017-01-05 | 2021-08-27 | 华为技术有限公司 | 指示及确定预编码向量的方法和接收及发射端设备 |
US10326538B2 (en) * | 2017-04-05 | 2019-06-18 | Cisco Technology, Inc. | Remote radio head reciprocity calibration |
WO2020026297A1 (ja) * | 2018-07-30 | 2020-02-06 | 株式会社Nttドコモ | 基地局及び無線通信方法 |
DE102020107921A1 (de) * | 2019-04-12 | 2020-10-15 | Samsung Electronics Co., Ltd. | Elektronische vorrichtung mit mehreren plattenantennen und betriebsverfahren dafür |
US11638281B2 (en) | 2020-11-19 | 2023-04-25 | Samsung Electronics Co., Ltd. | Method and apparatus for a user equipment sub-chain beam codebook design and operation |
CN114172550A (zh) * | 2021-12-14 | 2022-03-11 | 重庆邮电大学 | 毫米波大规模mimo***中基于相位提取的gmd混合预编码 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20080026010A (ko) * | 2006-09-19 | 2008-03-24 | 엘지전자 주식회사 | 위상천이 기반의 프리코딩을 이용한 데이터 전송 방법 및이를 구현하는 송수신 장치 |
CN101632279A (zh) * | 2006-09-19 | 2010-01-20 | Lg电子株式会社 | 使用基于相移的预编码的发送方法以及在无线通信***中用于实施其的设备 |
KR20080076683A (ko) * | 2007-02-14 | 2008-08-20 | 엘지전자 주식회사 | 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기 |
TWI429216B (zh) * | 2009-10-02 | 2014-03-01 | Mediatek Inc | 用於基於ofdma之多基地台mimo的連接預編碼器選擇之方法 |
JP5039110B2 (ja) | 2009-10-05 | 2012-10-03 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局装置、移動局装置及び送信電力制御方法 |
US9148205B2 (en) * | 2010-01-25 | 2015-09-29 | Qualcomm Incorporated | Feedback for supporting SU-MIMO and MU-MIMO operation in wireless communication |
KR101276855B1 (ko) * | 2010-03-08 | 2013-06-18 | 엘지전자 주식회사 | 프리코딩 행렬 정보 전송방법 및 사용자기기와, 프리코딩 행렬 구성방법 및 기지국 |
US8792586B2 (en) * | 2010-04-08 | 2014-07-29 | Lg Electronics Inc. | Signal transmission method and apparatus using codebook in wireless communication system supporting multiple antennas |
KR20120003781A (ko) | 2010-07-05 | 2012-01-11 | 주식회사 팬택 | 송신장치 및 그 통신방법, 수신장치, 그 통신방법 |
JP5421299B2 (ja) * | 2011-01-07 | 2014-02-19 | 株式会社Nttドコモ | 移動端末装置、無線基地局装置、及び無線通信方法 |
CN102761354B (zh) * | 2011-04-28 | 2015-02-18 | 上海贝尔股份有限公司 | 在网络设备中生成码本和相关数据的方法及装置 |
US8891656B2 (en) * | 2011-10-27 | 2014-11-18 | Ntt Docomo, Inc. | Low-complexity, rank extendable, codebook design and method for supporting precoding matrix feedback for multi-user and single-user MIMO systems |
JP5899043B2 (ja) * | 2012-05-07 | 2016-04-06 | 株式会社Nttドコモ | コードブック適合方法、無線基地局装置及びユーザ装置 |
-
2013
- 2013-03-07 JP JP2013046024A patent/JP5850872B2/ja not_active Expired - Fee Related
-
2014
- 2014-02-18 WO PCT/JP2014/053733 patent/WO2014136563A1/ja active Application Filing
- 2014-02-18 US US14/771,219 patent/US9391682B2/en not_active Expired - Fee Related
- 2014-02-18 CN CN201480012036.XA patent/CN105009492B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2014175810A (ja) | 2014-09-22 |
CN105009492B (zh) | 2018-04-06 |
US9391682B2 (en) | 2016-07-12 |
CN105009492A (zh) | 2015-10-28 |
US20160013849A1 (en) | 2016-01-14 |
WO2014136563A1 (ja) | 2014-09-12 |
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