JP6121118B2 - 無線通信方法、ユーザ端末、無線基地局及び無線通信システム - Google Patents
無線通信方法、ユーザ端末、無線基地局及び無線通信システム 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
- H04B7/0456—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
- H04B7/0452—Multi-user MIMO systems
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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
- H04B7/0617—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
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- 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
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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
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- 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
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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
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Description
第1の形態では、測定用参照信号としてCSI−RSを用いる場合を説明する。第1の形態において、垂直ビーム毎に異なるプリコーディングウェイトでプリコーディングされる複数のCSI−RSは、垂直ビーム毎に異なるCSI−RSリソースにマッピングされる。各CSI−RSリソースは、1垂直ビームに関連付けられる。これにより、各CSI−RSリソースについてフィードバックされるCSIが、各CSI−RSリソースに関連付けられた垂直ビームの水平ドメインにおけるCSIを示すことになる。また、各CSI−RSリソースは、1CSIプロセスに関連付けられる。
図9を参照し、第1の形態の第1の態様(以下、態様1.1という)に係る無線通信方法を説明する。なお、図9では、K(K≧1)個の垂直ビームが設定(configure)されるものとする。また、K個の垂直ビームは、それぞれ、K個のCSIプロセスに対応するものとする。
図10を参照し、第1の形態の第2の態様(以下、態様1.2という)に係る無線通信方法を説明する。なお、図10では、K(K≧1)個の垂直ビームが設定されるものとする。また、K個の垂直ビームは、それぞれ、K個のCSIプロセスに対応するものとする。なお、各CSIプロセスは、CSIプロセスの識別子(CSIプロセスID)で識別されるものとする。
図11を参照し、第1の形態の第3の態様(以下、態様1.3という)に係る無線通信方法を説明する。なお、図11では、K(K≧1)個の垂直ビームが設定されるものとする。また、K個の垂直ビームは、それぞれ、K個のCSIプロセスに対応するものとする。なお、各CSIプロセスは、CSIプロセスIDで識別されるものとする。
第2の形態では、測定用参照信号としてCRSを用いる場合を説明する。第2の形態において、垂直ビーム毎に異なるプリコーディングウェイトでプリコーディングされる複数のCRSは、垂直ビーム毎に異なるサブフレームで送信される。各サブフレームは、1垂直ビームに関連付けられる。これにより、各サブフレームのCRSについてフィードバックされるCSIが、各サブフレームに関連付けられた垂直ビームの水平ドメインにおけるCSIを示すこととなる。
図12を参照し、第2の形態の第1の態様(以下、態様2.1という)に係る無線通信方法を説明する。なお、図12では、K(K≧1)個の垂直ビームが設定されるものとする。
図13を参照し、第2の形態の第2の態様(以下、態様2.2という)に係る無線通信方法を説明する。なお、図13では、K(K≧1)個の垂直ビームが設定されるものとする。
以下に、本実施の形態に係る無線通信システムについて詳細に説明する。
10…無線基地局
20…ユーザ端末
30…上位局装置
40…コアネットワーク
11…送受信アンテナ
12…アンプ部
13…送受信部
14…ベースバンド信号処理部
15…呼処理部
16…伝送路インターフェース
21…送受信アンテナ
22…アンプ部
23…送受信部
24…ベースバンド信号処理部
25…アプリケーション部
101a…CSI−RS生成部
101b…CRS生成部
102…CSI受信部
103…垂直PMI選択部
104…3次元プリコーダ/3次元チャネル構成部
105…スケジューリング部
201a…CSI−RS受信部
201b…CRS受信部
202a、202b…チャネル推定部
203…CSI生成部
204…CSIフィードバック部
205…CSI選択/フィードバック部
Claims (7)
- 1つ以上のCSI(チャネル状態情報)プロセスに対応するチャネルを推定するチャネル推定部と、
推定したチャネルに基づいてCSIを生成する生成部と、
CSIを送信する送信部と、を有し、
前記CSIプロセスは、プリコーディングウェイトを用いてプリコーディングされたCSI−RS(チャネル状態測定用参照信号)リソースに関連付けられることを特徴とするユーザ端末。 - 前記送信部は、選択されたCSIを送信することを特徴とする請求項1に記載のユーザ端末。
- 前記送信部は、選択されたCSIに対応するCSI−RSリソースに関する識別子を送信する請求項2に記載のユーザ端末。
- 前記CSIプロセスは、ビームに対応することを特徴とする請求項1に記載のユーザ端末。
- プリコーディングウェイトを用いてプリコーディングされた1つ以上のCSI−RS(チャネル状態測定用参照信号)をCSI−RSリソースにマッピングする生成部と、
前記CSI−RSを送信する送信部と、
前記CSI−RSリソースに関連付けられるCSI(チャネル状態情報)プロセスに対応するCSIを受信する受信部と、を有することを特徴とする無線基地局。 - ユーザ端末の無線通信方法であって、
1つ以上のCSI(チャネル状態情報)プロセスに対応するチャネルを推定する工程と、
推定したチャネルに基づいてCSIを生成する工程と、
CSIを送信する工程と、を有し、
前記CSIプロセスは、プリコーディングウェイトを用いてプリコーディングされたCSI−RS(チャネル状態測定用参照信号)リソースに関連付けられることを特徴とする無線通信方法。 - ユーザ端末と、前記ユーザ端末と通信する無線基地局と、を有する無線通信システムであって、
前記ユーザ端末は、1つ以上のCSI(チャネル状態情報)プロセスに対応するチャネルを推定するチャネル推定部と、
推定したチャネルに基づいてCSIを生成する生成部と、
CSIを送信する送信部と、を有し、
前記CSIプロセスは、プリコーディングウェイトを用いてプリコーディングされたCSI−RS(チャネル状態測定用参照信号)リソースに関連付けられることを特徴とする無線通信システム。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012197745A JP6121118B2 (ja) | 2012-09-07 | 2012-09-07 | 無線通信方法、ユーザ端末、無線基地局及び無線通信システム |
US14/426,321 US9319120B2 (en) | 2012-09-07 | 2013-07-31 | Radio communication method, user terminal, radio base station and radio communication system |
CN201810156925.3A CN108111209B (zh) | 2012-09-07 | 2013-07-31 | 无线通信方法、用户终端、无线基站以及无线通信系统 |
PCT/JP2013/070784 WO2014038321A1 (ja) | 2012-09-07 | 2013-07-31 | 無線通信方法、ユーザ端末、無線基地局及び無線通信システム |
CN201380046543.0A CN104604277A (zh) | 2012-09-07 | 2013-07-31 | 无线通信方法、用户终端、无线基站以及无线通信系统 |
US15/065,081 US10069651B2 (en) | 2012-09-07 | 2016-03-09 | Radio communication system that feeds back channel state information (CSI) |
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JP2012197745A JP6121118B2 (ja) | 2012-09-07 | 2012-09-07 | 無線通信方法、ユーザ端末、無線基地局及び無線通信システム |
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JP2014053811A JP2014053811A (ja) | 2014-03-20 |
JP6121118B2 true JP6121118B2 (ja) | 2017-04-26 |
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US (2) | US9319120B2 (ja) |
JP (1) | JP6121118B2 (ja) |
CN (2) | CN104604277A (ja) |
WO (1) | WO2014038321A1 (ja) |
Families Citing this family (73)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101972945B1 (ko) | 2012-09-18 | 2019-04-29 | 삼성전자 주식회사 | 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 장치 |
US9712219B2 (en) * | 2013-02-19 | 2017-07-18 | Lg Electronics Inc. | Method for transmitting signal in multi-antenna wireless communication system and apparatus for the same |
US10193665B2 (en) | 2013-03-21 | 2019-01-29 | Texas Instruments Incorporated | Reference signal for 3D MIMO in wireless communication systems |
WO2015021596A1 (en) * | 2013-08-13 | 2015-02-19 | Nec(China) Co., Ltd. | Methods and apparatuses for channel estimation and feedback in a three-dimensional multiple input and multiple ouput system |
US9438451B2 (en) * | 2013-09-27 | 2016-09-06 | Intel Corporation | CSI-RS antenna ports extension and 3D codebook design |
US20170005712A1 (en) * | 2014-01-22 | 2017-01-05 | Nec Corporation | Method and apparatus for channel measurement and feedback |
US9948378B2 (en) * | 2014-03-12 | 2018-04-17 | Lg Electronics Inc. | Method and device for transmitting reference signal in multi-antenna supporting wireless communication system |
JP6121931B2 (ja) * | 2014-03-20 | 2017-04-26 | 株式会社Nttドコモ | 移動通信システム、基地局、およびユーザ装置 |
JP6438203B2 (ja) * | 2014-03-20 | 2018-12-12 | 株式会社Nttドコモ | 基地局及びユーザ装置 |
JP2015185953A (ja) | 2014-03-20 | 2015-10-22 | 株式会社Nttドコモ | ビーム選択方法、基地局、およびユーザ装置 |
EP2928234B1 (en) * | 2014-03-31 | 2016-05-25 | Alcatel Lucent | Methods For Operating A Mobile Station And A Base Station In A Radio Communication System, Mobile Station And Base Station Thereof |
CN105007126B (zh) | 2014-04-23 | 2017-09-29 | 电信科学技术研究院 | 一种信道状态信息测量的方法、系统及设备 |
WO2015167316A1 (ko) * | 2014-05-02 | 2015-11-05 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 향상된 빔포밍 방법 및 이를 위한 장치 |
JP2015216449A (ja) | 2014-05-08 | 2015-12-03 | ソニー株式会社 | 装置 |
EP3146777B1 (en) | 2014-05-22 | 2019-02-27 | Kyocera Corporation | Unlicensed frequency band with licensed frequency band timing |
EP3154293B1 (en) * | 2014-06-06 | 2022-08-31 | Sony Group Corporation | Terminal apparatus |
JP6573610B2 (ja) * | 2014-07-25 | 2019-09-11 | 株式会社Nttドコモ | ユーザ装置および基地局 |
EP3179650A4 (en) * | 2014-08-06 | 2017-08-09 | Fujitsu Limited | Wireless communication system, base station, mobile station, transmission method, and demodulation method |
WO2016021013A1 (ja) * | 2014-08-06 | 2016-02-11 | 富士通株式会社 | 無線通信システム、基地局、移動局、送信方法および推定方法 |
WO2016023227A1 (zh) * | 2014-08-15 | 2016-02-18 | 富士通株式会社 | 资源配置方法、装置以及通信系统 |
WO2016047505A1 (ja) * | 2014-09-25 | 2016-03-31 | 株式会社Nttドコモ | 基地局及びユーザ装置 |
WO2016048087A1 (ko) * | 2014-09-25 | 2016-03-31 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 참조 신호 전송 방법 및 이를 위한 장치 |
CN112533272A (zh) * | 2014-09-28 | 2021-03-19 | 华为技术有限公司 | 上行功率配置方法和装置 |
US20170222708A1 (en) * | 2014-10-07 | 2017-08-03 | Lg Electronics Inc. | Feedback reporting method for 3d beamforming in wireless communication system, and apparatus therefor |
US9537548B2 (en) | 2014-10-27 | 2017-01-03 | Nokia Solutions And Networks Oy | Random access channel using basis functions |
US9698878B2 (en) * | 2014-10-31 | 2017-07-04 | Quantenna Communications, Inc. | Unsolicited channel sounding in a wireless local area network |
US10028153B2 (en) * | 2014-11-03 | 2018-07-17 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient beam scanning for high-frequency wireless networks |
JP6408706B2 (ja) * | 2014-11-28 | 2018-10-17 | 華為技術有限公司Huawei Technologies Co.,Ltd. | リソース設定方法、ユーザ機器、及び基地局 |
US9621243B2 (en) | 2014-12-03 | 2017-04-11 | Texas Instruments Incorporated | Method and apparatus for CSI feedback in a MIMO wireless communication system with elevation beamforming |
US10224988B2 (en) | 2014-12-31 | 2019-03-05 | Huawei Technologies Co., Ltd. | CSI-RS transmission method, network device, and user equipment |
CN105871516A (zh) * | 2015-01-23 | 2016-08-17 | 北京信威通信技术股份有限公司 | 反馈垂直维度的信道状态信息的方法、装置及系统 |
WO2016121200A1 (ja) * | 2015-01-29 | 2016-08-04 | ソニー株式会社 | 装置 |
KR20170109545A (ko) | 2015-01-29 | 2017-09-29 | 소니 주식회사 | 장치 및 방법 |
JP2016143916A (ja) | 2015-01-29 | 2016-08-08 | ソニー株式会社 | 装置 |
JPWO2016121251A1 (ja) | 2015-01-29 | 2017-11-09 | ソニー株式会社 | 装置及び方法 |
CN105991171B (zh) * | 2015-02-15 | 2019-05-10 | 电信科学技术研究院 | 一种三维信道状态信息确定方法及装置 |
WO2016137061A1 (ko) * | 2015-02-26 | 2016-09-01 | 엘지전자 주식회사 | 무선 통신 시스템에서 csi 정보를 피드백하는 방법 및 그 장치 |
CN113993139A (zh) | 2015-03-24 | 2022-01-28 | 索尼公司 | 用于通信系统的装置 |
MY186121A (en) | 2015-03-24 | 2021-06-23 | Sony Corp | Apparatus |
WO2016153287A1 (ko) * | 2015-03-25 | 2016-09-29 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 채널 상태 정보 피드백 방법 및 이를 위한 장치 |
CN106160952B (zh) * | 2015-04-17 | 2019-06-25 | 中国移动通信集团公司 | 一种信道信息反馈方法及装置 |
WO2016179801A1 (en) * | 2015-05-12 | 2016-11-17 | Nec Corporation | Method and apparatus for channel state information feedback for full dimensional mimo |
CN106302269B (zh) * | 2015-06-04 | 2020-06-23 | 电信科学技术研究院 | 一种信道状态信息的反馈及其控制方法及装置 |
US20170026962A1 (en) * | 2015-07-23 | 2017-01-26 | Futurewei Technologies, Inc. | Beam detection and tracking in wireless networks |
JP6343719B2 (ja) * | 2015-08-13 | 2018-06-13 | 株式会社Nttドコモ | 情報処理方法及び移動局 |
CN108496312A (zh) * | 2015-09-24 | 2018-09-04 | 株式会社Ntt都科摩 | 无线基站和用户设备 |
KR102201502B1 (ko) * | 2015-10-05 | 2021-01-11 | 에스케이텔레콤 주식회사 | 무선 채널 할당 시스템, 기지국장치 및 단말, 그리고 무선 채널 할당 방법 |
WO2017068747A1 (ja) * | 2015-10-20 | 2017-04-27 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 通信装置及び通信方法 |
KR20180081049A (ko) | 2015-11-05 | 2018-07-13 | 소니 주식회사 | 장치 및 방법 |
WO2017084093A1 (zh) | 2015-11-20 | 2017-05-26 | 华为技术有限公司 | 一种发送或者接收信道状态信息csi的方法、终端及基站 |
WO2017142574A1 (en) * | 2016-02-19 | 2017-08-24 | Intel IP Corporation | FIFTH GENERATION (5G) UPLINK CONTROL INFORMATION (xUCI) REPORT |
JP6554728B2 (ja) * | 2016-03-16 | 2019-08-07 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual Property Corporation of America | 無線通信システム、無線制御方法及び基地局装置 |
US10122559B2 (en) | 2016-03-21 | 2018-11-06 | Qualcomm Incorporated | Uplink channel quality measurement using a subframe with high-intensity reference signal bursts |
WO2017193331A1 (en) * | 2016-05-12 | 2017-11-16 | Qualcomm Incorporated | Hybrid class b fd-mimo |
TWI721201B (zh) * | 2016-07-29 | 2021-03-11 | 華碩電腦股份有限公司 | 無線通訊系統中用於波束操作的通道狀態資訊回報的方法和設備 |
KR102376307B1 (ko) | 2016-08-12 | 2022-04-01 | 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) | 더 최적화된 오버헤드를 갖는 멀티-빔 코드북들 |
WO2018029646A1 (en) | 2016-08-12 | 2018-02-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Layer 1 and layer 2 channel state information rich reporting mechanisms |
JP7003111B2 (ja) * | 2016-08-12 | 2022-01-20 | テレフオンアクチーボラゲット エルエム エリクソン(パブル) | 高度csiフィードバックオーバヘッド低減のための構成可能コードブック |
WO2018029644A2 (en) * | 2016-08-12 | 2018-02-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Progressive advanced csi feedback |
US10985822B2 (en) | 2016-09-29 | 2021-04-20 | Sharp Kabushiki Kaisha | Base station apparatus, terminal apparatus, and communication method |
WO2018058621A1 (zh) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | 一种波束赋形传输的方法及装置 |
CN107888244B (zh) * | 2016-09-30 | 2021-08-20 | 中兴通讯股份有限公司 | 一种无线通信系统中实现用户面功能增强的方法和装置 |
US10236965B1 (en) * | 2016-10-04 | 2019-03-19 | Sprint Spectrum L.P. | Dynamic multi-antenna communication |
WO2018143375A1 (ja) | 2017-02-03 | 2018-08-09 | 株式会社Nttドコモ | ユーザ装置、及びプリアンブル送信方法 |
US10506566B2 (en) * | 2017-03-02 | 2019-12-10 | Lg Electronics Inc. | Caused by transmission beam tracking of UE in wireless communication system and UE therefor |
US11509364B2 (en) * | 2017-03-13 | 2022-11-22 | Qualcomm Incorporated | Techniques and apparatuses for uplink precoder determination using downlink reference signals or downlink precoder determination using uplink reference signals |
WO2019032642A1 (en) * | 2017-08-08 | 2019-02-14 | Ntt Docomo, Inc. | WIRELESS COMMUNICATION METHOD |
CN114710247A (zh) | 2017-11-17 | 2022-07-05 | 中兴通讯股份有限公司 | 信息发送、接收方法及装置、存储介质、处理器 |
JP2018050333A (ja) * | 2017-11-22 | 2018-03-29 | 株式会社Nttドコモ | ユーザ装置 |
JP6770561B2 (ja) * | 2018-09-20 | 2020-10-14 | 華為技術有限公司Huawei Technologies Co.,Ltd. | リソース設定方法、ユーザ機器、及び基地局 |
US11888564B2 (en) * | 2018-11-21 | 2024-01-30 | Ntt Docomo, Inc. | Method for quantization of combination coefficients associated with frequency domain compression |
JP7287002B2 (ja) * | 2019-02-27 | 2023-06-06 | 富士通株式会社 | 基地局装置及びビーム選択方法 |
US20220295297A1 (en) * | 2019-07-31 | 2022-09-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for time-domain beam-sweeping |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10187133B2 (en) * | 2004-04-02 | 2019-01-22 | Rearden, Llc | System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network |
KR101399029B1 (ko) * | 2007-09-12 | 2014-06-27 | 삼성전자주식회사 | 무선통신시스템에서 파일럿을 전송하기 위한 장치 및 방법 |
BRPI0912432B1 (pt) * | 2008-05-09 | 2021-04-13 | Apple Inc. | Método para selecionar e sistema de transmissão que seleciona um melhor feixe de transmissão a partir de um nó de acesso para um receptor em um sistema de comunicação e sistema de comunicação |
KR20110063478A (ko) * | 2008-09-22 | 2011-06-10 | 가부시키가이샤 엔티티 도코모 | 기지국장치, 유저장치 및 프리코딩 방법 |
US8351544B2 (en) * | 2008-12-15 | 2013-01-08 | Motorola Mobility Llc | Method and apparatus for codebook-based feedback in a closed loop wireless communication system |
US8867380B2 (en) * | 2009-02-02 | 2014-10-21 | Qualcomm Incorporated | Scheduling algorithms for cooperative beamforming |
CN104811275B (zh) * | 2009-06-16 | 2018-06-12 | 夏普株式会社 | 终端装置、基站装置及通信方法 |
WO2011018121A1 (en) * | 2009-08-14 | 2011-02-17 | Nokia Siemens Networks Oy | Improvements for coordinated multipoint transmission |
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 |
JP5396306B2 (ja) * | 2010-02-24 | 2014-01-22 | 株式会社Nttドコモ | プリコーディングウェイト生成方法及び制御装置 |
WO2011115421A2 (en) | 2010-03-17 | 2011-09-22 | Lg Electronics Inc. | Method and apparatus for providing channel state information-reference signal (csi-rs) configuration information in a wireless communication system supporting multiple antennas |
US8681651B2 (en) * | 2010-11-05 | 2014-03-25 | Qualcomm Incorporated | Reference signal reception and channel state information determination for multiple nodes in a wireless communication network |
US8675762B2 (en) * | 2011-05-02 | 2014-03-18 | Alcatel Lucent | Method of transforming pre-coded signals for multiple-in-multiple-out wireless communication |
US9680537B2 (en) | 2011-08-15 | 2017-06-13 | Ntt Docomo , Inc. | Radio base station, user terminal, radio communication system and radio communication method |
GB2500382B (en) * | 2012-03-19 | 2014-11-26 | Broadcom Corp | Methods, apparatus and computer programs for configuring user equipment |
WO2013152490A1 (en) * | 2012-04-12 | 2013-10-17 | Nokia Siemens Networks Oy | Three-dimensional beamforming in a mobile communications network |
US9225478B2 (en) * | 2012-07-02 | 2015-12-29 | Intel Corporation | Supporting measurments and feedback for 3D MIMO with data transmission optimization |
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