JP2015532039A - ミリ波システムにおけるチャネル微細調整及び多重ストリーム送信をサポートするための方法及び装置 - Google Patents
ミリ波システムにおけるチャネル微細調整及び多重ストリーム送信をサポートするための方法及び装置 Download PDFInfo
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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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- 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
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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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Abstract
Description
101 基地局
102 移動局
103 基地局
111〜116 移動局
120、125 カバレッジ領域
130 ネットワーク
205 チャネルコーディング及び変調ブロック
210 直列−並列ブロック
215 IFFTブロック
220 並列−直列ブロック
225 CP追加ブロック
230 アップコンバータ
250 受信経路
255 ダウンコンバータ
260 CP除去ブロック
265 直列−並列ブロック
270 FFTブロック
275 並列−直列ブロック
280 チャネルデコーディング及び復調ブロック
305 アンテナ
310 トランシーバ
315 送信処理回路
320 マイク
325 受信処理回路
330 スピーカ
340 メインプロセッサ
345 入出力インタフェース
350 キーパッド
355 ディスプレイ
360 メモリ
501 基地局
502 アンテナアレイ
503 移動局
504 アンテナアレイ
602 デジタルチェーン
608 ビームフォーミング部
702 デジタルチェーン
704 アンテナアレイ
902 送信機
904 受信機
1002 基地局
1004 移動局
1302 移動局
1304 移動局
1402 移動局
1404 基地局
1502 送信機
1504 受信機
Claims (15)
- 移動局の方法において、
基地局から共通(common)CSI(channel state information)−RS(reference signal)を受信する段階と、
前記共通CSI−RSに基づいて前記基地局に第1フィードバック(feedback)を送信する段階と、
前記基地局から移動局−特定(specific)CSI−RSの構成を受信する段階と、
前記移動局−特定CSI−RSを受信する段階と、
前記移動局−特定CSI−RSに基づいて前記基地局に第2フィードバックを送信する段階と、を含むことを特徴とする方法。 - 前記移動局特定CSI−RSを受信する段階は、
追加的チャネル状態情報を必要とする前記移動局及び前記基地局からの要求のうち1つに応じて行われることを特徴とする請求項1に記載の方法。 - 前記移動局は、進歩した(advanced)受信機を含み、
前記第2フィードバックは、前記進歩した受信機を介して推定される前記移動局及び前記基地局間の各チャネルに対する推定された到来角、出射角及びチャネル利得を含むことを特徴とする請求項2に記載の方法。 - 前記第1フィードバックは、選好されるビームインデックス及びランクパラメータを含み、
前記第2フィードバックは、瞬時的なチャネル情報を捉え(capture)、基底帯域プリコーダ及びチャネル状態情報を含むチャネルパラメータを含むことを特徴とする請求項1に記載の方法。 - 基地局において、
トランシーバと、
前記トランシーバを介して共通(common)CSI(channel state information)−RS(reference signal)を移動局に送信し、前記トランシーバを介して前記共通CSI−RSに基づいて前記移動局からの第1フィードバック(feedback)を受信し、前記トランシーバを介して移動局特定(specific)CSI−RSのための構成を前記移動局に送信し、前記トランシーバを介して前記移動局特定CSI−RSを送信し、前記トランシーバを介して前記移動局特定CSI−RSに基づいて前記移動局から第2フィードバックを受信するように構成された処理回路と、を含むことを特徴とする基地局。 - 前記移動局特定CSI−RSの送信は、前記移動局からの要求に応じて行われることを特徴とする請求項5に記載の基地局。
- 前記第2フィードバックは、前記移動局の進歩した受信機を介して推定される前記移動局と前記基地局との間の各チャネルに対する推定された到来角、出射角及びチャネル利得を含むことを特徴とする請求項5に記載の基地局。
- 前記移動局特定CSI−RSの送信は、追加的なチャネル状態情報に対する前記基地局の必要に応じて行われることを特徴とする請求項5に記載の基地局。
- 前記第1フィードバックは、選好されるビームインデックス及びランクパラメータを含み、
前記第2フィードバックは、瞬時的なチャネル情報を捉え(capture)、基底帯域プリコーダ及びチャネル状態情報を含むチャネルパラメータを含むことを特徴とする請求項5に記載の基地局。 - 前記第1フィードバックは、前記共通CSI−RS送信及びランク指示子(indication)に使用されたビームの1つ以上のインデックスから選択される少なくとも1つの選好ビームインデックスを含むことを特徴とする請求項2又は5に記載の方法又は基地局。
- 移動局特定参照CSI−RSは、前記チャネルで短期(short term)変動を捉える(capture)ために送信されることを特徴とする請求項5又は10に記載の方法又は基地局。
- 移動局特定参照CSI−RSは、前記第1フィードバックに基づいて選択されたサブセット(subset)を有する移動局への空間方向のサブセットを介して送信されることを特徴とする請求項1又は5に記載の方法又は基地局。
- 移動局特定参照CSI−RSは、多重ストリーム(multiple stream)の送信に使用される基底帯域フリーコーディングを推定するために送信されることを特徴とする請求項1又は5に方法又は基地局。
- 請求項1乃至4、10、13のいずれか1項による方法を実施するように構成された移動局装置。
- 請求項5乃至13のいずれか1項による少なくとも1つの基地局を含む無線通信システム。
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Application Number | Priority Date | Filing Date | Title |
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US201261682679P | 2012-08-13 | 2012-08-13 | |
US61/682,679 | 2012-08-13 | ||
US13/963,746 US9439096B2 (en) | 2012-08-13 | 2013-08-09 | Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems |
US13/963,746 | 2013-08-09 | ||
PCT/KR2013/007287 WO2014027824A1 (en) | 2012-08-13 | 2013-08-13 | Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems |
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JP2015532039A true JP2015532039A (ja) | 2015-11-05 |
JP2015532039A5 JP2015532039A5 (ja) | 2016-09-29 |
JP6614973B2 JP6614973B2 (ja) | 2019-12-04 |
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JP2015527369A Active JP6614973B2 (ja) | 2012-08-13 | 2013-08-13 | ミリ波システムにおけるチャネル微細調整及び多重ストリーム送信をサポートするための方法及び装置 |
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US (1) | US9439096B2 (ja) |
EP (1) | EP2883381B1 (ja) |
JP (1) | JP6614973B2 (ja) |
KR (1) | KR102100462B1 (ja) |
CN (1) | CN104541540B (ja) |
WO (1) | WO2014027824A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019501572A (ja) * | 2015-11-23 | 2019-01-17 | クアルコム,インコーポレイテッド | ビームフォーミングおよびユーザ機器グループ化 |
JP7060575B2 (ja) | 2016-08-12 | 2022-04-26 | 大唐移▲動▼通信▲設▼▲備▼有限公司 | ダウンリンクビーム訓練方法および装置 |
US11916835B2 (en) | 2015-10-22 | 2024-02-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus relating to selective enhancement of radio signals |
Families Citing this family (97)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101855523B1 (ko) * | 2011-10-06 | 2018-05-04 | 삼성전자주식회사 | 통신 시스템에서 피드백 생성 방법 및 장치 |
CN102916735B (zh) * | 2012-10-17 | 2016-06-08 | 东南大学 | 利用大规模天线阵列的无线通信方法 |
US9801232B2 (en) * | 2013-04-15 | 2017-10-24 | Idac Holdings, Inc. | Discontinuous reception (DRX) schemes for millimeter wavelength (MMW) dual connectivity |
FR3008265B1 (fr) * | 2013-07-02 | 2015-07-03 | Bluwan | Systeme de production de faisceaux directifs multi liens simultanes |
EP3046378B1 (en) * | 2013-11-25 | 2018-06-27 | Huawei Technologies Co., Ltd. | Communication system, device and method |
KR102172442B1 (ko) | 2014-02-19 | 2020-10-30 | 삼성전자주식회사 | 우선 순위를 갖는 송신 빔 인덱스 선택 및 할당 방법 및 장치 |
JP2015159356A (ja) * | 2014-02-21 | 2015-09-03 | 富士通株式会社 | 無線通信システム、無線通信制御方法、及び、アクセスポイント |
JP6482179B2 (ja) * | 2014-03-20 | 2019-03-13 | 株式会社Nttドコモ | ユーザ装置及び基地局 |
EP3119150B1 (en) | 2014-04-10 | 2024-04-03 | Huawei Technologies Co., Ltd. | Channel status information reporting method, user equipment and base station |
BR112016025316A2 (pt) | 2014-04-28 | 2017-08-15 | Huawei Tech Co Ltd | método de transmissão de dados de múltipla antena, estação de base, equipamento de usuário e sistema |
WO2015176275A1 (zh) * | 2014-05-22 | 2015-11-26 | 华为技术有限公司 | 数据发送、接收方法及装置 |
KR102258289B1 (ko) * | 2014-05-22 | 2021-05-31 | 삼성전자 주식회사 | 이차원 배열 안테나를 사용하는 이동통신 시스템에서의 채널 피드백의 생성 및 전송 방법 및 장치 |
US9954590B2 (en) | 2014-05-23 | 2018-04-24 | Mediatek Inc. | Methods for efficient beam training and communications apparatus and network control device utilizing the same |
US9876549B2 (en) * | 2014-05-23 | 2018-01-23 | Mediatek Inc. | Methods for efficient beam training and communications apparatus and network control device utilizing the same |
US20150341105A1 (en) * | 2014-05-23 | 2015-11-26 | Mediatek Inc. | Methods for efficient beam training and communications apparatus and network control device utilizing the same |
US9413474B2 (en) * | 2014-06-12 | 2016-08-09 | Nec Corporation | Efficient large-scale multiple input multiple output communications |
WO2016003168A1 (ko) * | 2014-07-03 | 2016-01-07 | 엘지전자 주식회사 | 밀리미터웨이브를 지원하는 무선접속시스템에서 새로운 상향링크 참조신호 전송 방법 및 장치 |
US9337969B2 (en) | 2014-07-16 | 2016-05-10 | Qualcomm Incorporated | Low-frequency assisted methods for beamforming, timing and frequency offset in mm-wave access systems |
US9923615B2 (en) | 2014-07-24 | 2018-03-20 | Lg Electronics Inc. | Method and apparatus for transmitting feedback signals |
US9681309B2 (en) | 2014-08-05 | 2017-06-13 | Qualcomm Incorporated | Methods exploiting asymmetric capabilities for contention-based random access in mm-wave access systems |
CN105471771B (zh) * | 2014-08-28 | 2021-01-12 | 北京三星通信技术研究有限公司 | 信道方向信息的获取方法和设备 |
US9698889B2 (en) * | 2014-09-24 | 2017-07-04 | Intel Corporation | Scheduling in a multiple user multiple-input and multiple output communications network |
US9578644B2 (en) | 2014-09-26 | 2017-02-21 | Mediatek Inc. | Beam misalignment detection for wireless communication system with beamforming |
US10476563B2 (en) | 2014-11-06 | 2019-11-12 | Futurewei Technologies, Inc. | System and method for beam-formed channel state reference signals |
GB2532067A (en) * | 2014-11-07 | 2016-05-11 | Nec Corp | Communication system |
WO2016089122A1 (ko) | 2014-12-02 | 2016-06-09 | 엘지전자 주식회사 | 무선 통신 시스템에서 하이브리드 빔포밍을 기반으로 제어 채널을 전송하는 방법 및 장치 |
WO2016106575A1 (zh) * | 2014-12-30 | 2016-07-07 | 华为技术有限公司 | 信道空间特征信息获取方法及基站 |
US20160219633A1 (en) * | 2015-01-26 | 2016-07-28 | Qualcomm Incorporated | Apparatuses and methods for utilizing unidirectional antennas to ameliorate peer-to-peer device interference |
CN110213026A (zh) | 2015-01-30 | 2019-09-06 | 华为技术有限公司 | 通信系统中反馈信息的传输方法及装置 |
WO2016138655A1 (en) | 2015-03-05 | 2016-09-09 | Mediatek (Beijing) Inc. | Methods and apparatus for cell selection/reselection in millimeter wave system |
EP3275092B1 (en) * | 2015-03-27 | 2019-10-23 | Telefonaktiebolaget LM Ericsson (PUBL) | Systems and methods for selecting beam-reference signals for channel-state information reference-signal transmission |
WO2016163600A1 (ko) * | 2015-04-06 | 2016-10-13 | 엘지전자 주식회사 | 고속 이동 사용자 기기의 이동성 관리 |
CN106160807A (zh) * | 2015-04-09 | 2016-11-23 | 株式会社Ntt都科摩 | 波束选择方法、移动台和基站 |
WO2016168128A1 (en) * | 2015-04-15 | 2016-10-20 | Ping Liang | Hybrid beamforming multi-antenna wireless systems |
EP3280068B1 (en) * | 2015-04-17 | 2019-10-09 | Huawei Technologies Co. Ltd. | Method for transmitting information, base station, and user equipment |
EP3806379A1 (en) | 2015-07-08 | 2021-04-14 | Apple Inc. | User equipment (ue) and methods for communication using directional transmission and reception |
KR102109606B1 (ko) * | 2015-07-16 | 2020-05-12 | 에스케이텔레콤 주식회사 | 빔포밍 기반 무선 백홀 형성 방법, 이를 위한 장치 |
US10306597B2 (en) | 2015-07-21 | 2019-05-28 | Samsung Electronics Co., Ltd. | Method and apparatus for beam-level radio resource management and mobility in cellular network |
US10211964B2 (en) * | 2015-07-29 | 2019-02-19 | Samsung Electronics Co., Ltd. | Method and apparatus for CSI reporting |
JP6488424B2 (ja) * | 2015-08-06 | 2019-03-20 | 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) | リスニングベースの送信のための方法および装置 |
US10931353B2 (en) * | 2015-08-21 | 2021-02-23 | Lg Electronics Inc. | Method for transmitting or receiving channel state information in wireless communication system and apparatus therefor |
CN106559164B (zh) * | 2015-09-18 | 2020-10-30 | 上海诺基亚贝尔股份有限公司 | 在mmw网络中执行用户信息反馈的方法和装置 |
CN106686620B (zh) * | 2015-11-06 | 2021-06-22 | 索尼公司 | 无线通信设备和无线通信方法 |
US10187880B2 (en) * | 2015-12-18 | 2019-01-22 | Futurewei Technologies, Inc. | System and method for transmission and reception of control and data channels with group reference signal |
KR20170085426A (ko) * | 2016-01-14 | 2017-07-24 | 삼성전자주식회사 | 무선 통신 시스템에서 셀 측정 정보 생성 방법 및 장치 |
US10524150B2 (en) | 2016-01-14 | 2019-12-31 | Samsung Electronics Co., Ltd. | Method and apparatus for generating cell measurement information in a wireless communication system |
US10270514B2 (en) | 2016-01-14 | 2019-04-23 | Samsung Electronics Co., Ltd. | Method and apparatus for generating beam measurement information in a wireless communication system |
CN106998231A (zh) * | 2016-01-26 | 2017-08-01 | 中国科学院上海微系统与信息技术研究所 | 一种基于rs/ldpc编码技术的太赫兹通信系统 |
US10840991B2 (en) * | 2016-02-03 | 2020-11-17 | Ntt Docomo, Inc. | User equipment and method for selection of CSI reference signal and CSI reporting in a beam forming system with multiple beams |
EP3427401B1 (en) * | 2016-03-10 | 2021-01-06 | Interdigital Patent Holdings, Inc. | Concurrent mimo beamforming training in mmw wlan systems |
US10284267B2 (en) * | 2016-03-11 | 2019-05-07 | Huawei Technologies Canada Co., Ltd. | System and method for reducing self-interference in a wireless resource |
US10812163B2 (en) | 2016-04-01 | 2020-10-20 | Apple Inc. | CSI (channel state information) enhancements for FD (full dimension)-MIMO (multiple input multiple output) |
US10615862B2 (en) | 2016-04-13 | 2020-04-07 | Qualcomm Incorporated | System and method for beam adjustment request |
US10425200B2 (en) | 2016-04-13 | 2019-09-24 | Qualcomm Incorporated | System and method for beam adjustment request |
US11088747B2 (en) | 2016-04-13 | 2021-08-10 | Qualcomm Incorporated | System and method for beam management |
US10237857B2 (en) * | 2016-04-19 | 2019-03-19 | Qualcomm Incorporated | Beam reference signal based narrowband channel measurement and CQI reporting |
US10292168B2 (en) * | 2016-04-29 | 2019-05-14 | Corning Optical Communications LLC | Allocating digital channels associated with communications signals into assigned spectrum chunks in a wireless distribution system (WDS) based on determined utilization of processing resources |
CN107370556A (zh) * | 2016-05-12 | 2017-11-21 | 株式会社Ntt都科摩 | 信道质量反馈方法、用户终端、信道质量测量的控制方法及基站 |
WO2017193331A1 (en) * | 2016-05-12 | 2017-11-16 | Qualcomm Incorporated | Hybrid class b fd-mimo |
US20170338925A1 (en) * | 2016-05-20 | 2017-11-23 | National Taiwan University | Scheduling method of communication system using directional reference signals and related apparatuses using the same |
WO2017206100A1 (en) * | 2016-06-01 | 2017-12-07 | Intel IP Corporation | Cqi reporting for flexible transmission mode switching |
WO2017214988A1 (en) * | 2016-06-17 | 2017-12-21 | Lenovo Innovations Limited (Hong Kong) | Apparatuses and methods for channel coefficient estimation |
CN106452674B (zh) * | 2016-09-30 | 2019-04-12 | 西安交通大学 | 一种基于802.11ac网络的实际数据包恢复方法 |
WO2018065039A1 (en) * | 2016-10-05 | 2018-04-12 | Huawei Technologies Duesseldorf Gmbh | Spectrally efficient multi-stream communication device and method |
US10305567B2 (en) | 2016-11-03 | 2019-05-28 | Futurewei Technologies, Inc. | System and method for hierarchal beamforming and rank adaptation for hybrid antenna architecture |
CN108023628B (zh) * | 2016-11-04 | 2021-08-20 | 华为技术有限公司 | 终端设备移动性的处理方法、终端设备和基站 |
US10582397B2 (en) * | 2016-11-09 | 2020-03-03 | Qualcomm Incorporated | Beam refinement reference signal transmissions during control symbol |
US10154496B2 (en) | 2016-11-10 | 2018-12-11 | Futurewei Technologies, Inc. | System and method for beamformed reference signals in three dimensional multiple input multiple output communications systems |
DK3528563T3 (da) * | 2016-11-16 | 2021-07-12 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Fremgangsmåde og anordning til transmission af uplink-signal |
US10164699B2 (en) | 2016-12-28 | 2018-12-25 | Intel IP Corporation | CSI reporting in beamforming systems via time- and frequency-distributed CSI estimation |
CN108282806B (zh) | 2017-01-05 | 2023-10-24 | 华为技术有限公司 | 一种信号测量方法、网络侧设备及用户设备 |
CN108282321B (zh) | 2017-01-06 | 2022-03-29 | 华为技术有限公司 | 一种信息指示的方法、网络设备和终端设备 |
WO2018128522A1 (ko) * | 2017-01-09 | 2018-07-12 | 엘지전자 주식회사 | 무선 통신 시스템에서 빔 관리를 위한 csi-rs 설정 방법 및 장치 |
US10574308B2 (en) * | 2017-01-24 | 2020-02-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Managing of channel state information in a multiple-antenna communication system |
US11272429B2 (en) * | 2017-02-13 | 2022-03-08 | Qualcomm Incorporated | Initiation of mobility reference signal based on quality of initial access signals |
KR20180096277A (ko) * | 2017-02-21 | 2018-08-29 | 삼성전자주식회사 | 무선 통신 시스템에서 송신 전력 제어 방법 및 장치 |
CN108667500B (zh) | 2017-03-30 | 2021-02-09 | 华为技术有限公司 | 数据传输方法、终端设备和网络设备 |
CN109004958B (zh) * | 2017-06-06 | 2021-05-25 | 财团法人工业技术研究院 | 用户设备及其操作方法,网络装置及其操作方法 |
US10425901B2 (en) * | 2017-06-26 | 2019-09-24 | Qualcomm Incorporated | Uplink transmit power control during random access procedures |
KR102506475B1 (ko) | 2017-08-31 | 2023-03-06 | 삼성전자 주식회사 | 이동 통신 시스템에서의 csi-rs 자원 반복 전송 지원 방법 및 장치 |
CN111771339A (zh) | 2017-09-19 | 2020-10-13 | 苹果公司 | 波束估计辅助的波束采集 |
US10306419B2 (en) | 2017-09-29 | 2019-05-28 | Abl Ip Holding Llc | Device locating using angle of arrival measurements |
US10425214B2 (en) * | 2017-10-11 | 2019-09-24 | Skyriver Communications, Inc. | Method and apparatus for millimeter-wave hybrid beamforming to form subsectors |
CN108092929B (zh) * | 2017-12-27 | 2020-07-28 | 北京理工大学 | 一种用于太赫兹通信的同步方法 |
US11496273B2 (en) * | 2018-04-02 | 2022-11-08 | Lg Electronics Inc. | Method for transmitting and receiving channel state information in wireless communication system and apparatus therefor |
US10484266B2 (en) * | 2018-04-12 | 2019-11-19 | Citrix Systems, Inc. | Leveraging multi-stream transport protocol capabilities for routing |
US10833736B2 (en) * | 2018-11-23 | 2020-11-10 | Electronics And Telecommunications Research Institute | Hybrid beamforming method for beam-based cooperative transmission, and apparatus for the same |
KR102429756B1 (ko) * | 2018-11-23 | 2022-08-05 | 한국전자통신연구원 | 빔 기반 협력 전송을 위한 계층적 하이브리드 빔포밍 방법 및 이를 위한 장치 |
KR20200080009A (ko) * | 2018-12-26 | 2020-07-06 | 삼성전자주식회사 | 무선 통신 시스템에서 방향을 추정하기 위한 장치 및 방법 |
CN111385006A (zh) * | 2018-12-27 | 2020-07-07 | 财团法人工业技术研究院 | 毫米波信道估测方法 |
US10708090B1 (en) * | 2018-12-27 | 2020-07-07 | Industrial Technology Research Institute | Millimeter wave channel estimation method |
KR102654401B1 (ko) * | 2019-10-24 | 2024-04-03 | 한국전자통신연구원 | 클라우드 무선 액세스 네트워크 시스템에서 통신 방법 및 장치 |
US11323164B2 (en) * | 2019-10-24 | 2022-05-03 | Electronics And Telecommunications Research Institute | Communication method and apparatus in cloud radio access network |
CN115104333A (zh) | 2020-02-12 | 2022-09-23 | 诺基亚通信公司 | 通信系统 |
US11171709B1 (en) * | 2020-06-01 | 2021-11-09 | Hsueh-Jyh Li | Millimeter wave base station antenna system |
KR102326689B1 (ko) * | 2021-02-03 | 2021-11-16 | 한국과학기술원 | 밀리미터파 대역 다중 안테나 시스템의 고해상도 채널 파라미터 추정 방법 및 장치 |
US11342973B1 (en) * | 2021-10-19 | 2022-05-24 | King Faisal University | System and method for maintaining link communications in millimeter wave cellular networks |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003244054A (ja) * | 2002-02-21 | 2003-08-29 | Ntt Docomo Inc | 送信制御装置及び送信制御方法 |
JP2005531987A (ja) * | 2002-06-28 | 2005-10-20 | インターディジタル テクノロジー コーポレイション | セクタ化されたセルのカバレージを効率よく提供するシステム |
JP2009213134A (ja) * | 2008-02-05 | 2009-09-17 | Panasonic Corp | 基地局装置、端末装置および無線通信システム |
US20090238156A1 (en) * | 2008-02-13 | 2009-09-24 | Samsung Electronics Co., Ltd. | System and method for antenna training of beamforming vectors by selective use of beam level training |
JP2009535942A (ja) * | 2006-04-27 | 2009-10-01 | レイスパン コーポレーション | メタマテリアル構造に基づくアンテナ、デバイス、及びシステム |
WO2010102583A1 (en) * | 2009-03-12 | 2010-09-16 | Huawei Technologies Co., Ltd. | System and method for channel information feedback in a wireless communications system |
WO2011088403A1 (en) * | 2010-01-14 | 2011-07-21 | Qualcomm Incorporated | Channel feedback based on reference signal |
US20120051451A1 (en) * | 2009-05-08 | 2012-03-01 | Yeong Hyeon Kwon | Method and apparatus for transmitting feedback information on a reference signal |
JP2012090350A (ja) * | 2009-06-16 | 2012-05-10 | Sharp Corp | 基地局装置、端末装置、方法および通信システム |
JP2012124820A (ja) * | 2010-12-10 | 2012-06-28 | Sharp Corp | 通信装置、通信システム、通信方法、及びプロセッサ |
US20120176939A1 (en) * | 2011-01-07 | 2012-07-12 | Futurewei Technologies, Inc. | Reference Signal Transmission and Reception Method and Equipment |
WO2012096607A1 (en) * | 2011-01-13 | 2012-07-19 | Telefonaktiebolaget L M Ericsson (Publ) | Enhanced angle-of-arrival positioning |
WO2013111818A1 (ja) * | 2012-01-27 | 2013-08-01 | 三菱電機株式会社 | 移動体通信システム |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101414616B1 (ko) | 2007-10-18 | 2014-07-03 | 엘지전자 주식회사 | 무선접속 시스템에서 단말에 할당된 무선자원 모드를전환하는 방법 |
KR101414632B1 (ko) | 2008-03-06 | 2014-07-03 | 엘지전자 주식회사 | 단말의 릴레이를 통한 통신 방법 및 릴레이 시스템의 통신방법 |
KR101507088B1 (ko) * | 2008-03-21 | 2015-03-30 | 삼성전자주식회사 | 다중 입출력 무선통신 시스템에서 상향링크 빔 성형 및 공간분할 다중 접속 장치 및 방법 |
KR101410607B1 (ko) * | 2008-05-09 | 2014-06-20 | 애플 인크. | 셀룰러 네트워크에서의 안테나 빔 형성을 지원하기 위한 시스템 및 방법 |
WO2010002734A2 (en) * | 2008-06-30 | 2010-01-07 | Interdigital Patent Holdings, Inc. | Method and apparatus to support single user (su) and multiuser (mu) beamforming with antenna array groups |
US9755705B2 (en) * | 2008-08-07 | 2017-09-05 | Qualcomm Incorporated | Method and apparatus for supporting multi-user and single-user MIMO in a wireless communication system |
ATE511737T1 (de) * | 2008-09-19 | 2011-06-15 | Alcatel Lucent | Verfahren zur satzbildung von mobilen stationen in mimo-systemen, entsprechende mobilstation, basisstation, betrieb und wartungszentrum und funkkommunikationsnetzwerk |
US8767843B2 (en) * | 2008-11-10 | 2014-07-01 | Motorola Mobility Llc | Employing cell-specific and user entity-specific reference symbols in an orthogonal frequency-division multiple access |
KR20100053417A (ko) * | 2008-11-11 | 2010-05-20 | 엘지전자 주식회사 | 다중입력다중출력 시스템에서 신호 전송 방법 및 신호 수신 방법 |
CN102257743B (zh) * | 2008-12-18 | 2014-05-28 | 爱立信电话股份有限公司 | 用于无线通信的系统和提供无线通信的方法 |
JP4858555B2 (ja) * | 2009-02-19 | 2012-01-18 | ソニー株式会社 | 通信装置、通信方法、および通信システム |
CN101873601A (zh) | 2009-04-27 | 2010-10-27 | 松下电器产业株式会社 | 在无线通信系统中设置参考信号的方法以及系统 |
EP2425539B1 (en) * | 2009-04-28 | 2018-01-24 | Huawei Technologies Co., Ltd. | System and method for coordinating electronic devices in a wireless communications system |
JP4934232B2 (ja) * | 2009-06-18 | 2012-05-16 | シャープ株式会社 | 移動通信システム、基地局装置、移動局装置、および、移動通信方法 |
KR101715939B1 (ko) * | 2009-06-18 | 2017-03-14 | 엘지전자 주식회사 | 채널 상태 정보 피드백 방법 및 장치 |
JP2011004212A (ja) | 2009-06-19 | 2011-01-06 | Sharp Corp | 送信装置、受信装置、通信システムおよび通信方法 |
KR101847400B1 (ko) | 2011-09-01 | 2018-04-10 | 삼성전자주식회사 | 무선 통신 시스템에서 최적의 빔을 선택하기 위한 장치 및 방법 |
US9100146B2 (en) * | 2012-03-08 | 2015-08-04 | Alcatel Lucent | Virtual sectorization using an active anntenna array |
-
2013
- 2013-08-09 US US13/963,746 patent/US9439096B2/en active Active
- 2013-08-13 EP EP13879340.1A patent/EP2883381B1/en active Active
- 2013-08-13 CN CN201380042838.0A patent/CN104541540B/zh not_active Expired - Fee Related
- 2013-08-13 WO PCT/KR2013/007287 patent/WO2014027824A1/en active Application Filing
- 2013-08-13 KR KR1020157003344A patent/KR102100462B1/ko active IP Right Grant
- 2013-08-13 JP JP2015527369A patent/JP6614973B2/ja active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003244054A (ja) * | 2002-02-21 | 2003-08-29 | Ntt Docomo Inc | 送信制御装置及び送信制御方法 |
JP2005531987A (ja) * | 2002-06-28 | 2005-10-20 | インターディジタル テクノロジー コーポレイション | セクタ化されたセルのカバレージを効率よく提供するシステム |
JP2009535942A (ja) * | 2006-04-27 | 2009-10-01 | レイスパン コーポレーション | メタマテリアル構造に基づくアンテナ、デバイス、及びシステム |
JP2009213134A (ja) * | 2008-02-05 | 2009-09-17 | Panasonic Corp | 基地局装置、端末装置および無線通信システム |
US20090238156A1 (en) * | 2008-02-13 | 2009-09-24 | Samsung Electronics Co., Ltd. | System and method for antenna training of beamforming vectors by selective use of beam level training |
WO2010102583A1 (en) * | 2009-03-12 | 2010-09-16 | Huawei Technologies Co., Ltd. | System and method for channel information feedback in a wireless communications system |
US20120051451A1 (en) * | 2009-05-08 | 2012-03-01 | Yeong Hyeon Kwon | Method and apparatus for transmitting feedback information on a reference signal |
JP2012090350A (ja) * | 2009-06-16 | 2012-05-10 | Sharp Corp | 基地局装置、端末装置、方法および通信システム |
WO2011088403A1 (en) * | 2010-01-14 | 2011-07-21 | Qualcomm Incorporated | Channel feedback based on reference signal |
JP2012124820A (ja) * | 2010-12-10 | 2012-06-28 | Sharp Corp | 通信装置、通信システム、通信方法、及びプロセッサ |
US20120176939A1 (en) * | 2011-01-07 | 2012-07-12 | Futurewei Technologies, Inc. | Reference Signal Transmission and Reception Method and Equipment |
WO2012096607A1 (en) * | 2011-01-13 | 2012-07-19 | Telefonaktiebolaget L M Ericsson (Publ) | Enhanced angle-of-arrival positioning |
WO2013111818A1 (ja) * | 2012-01-27 | 2013-08-01 | 三菱電機株式会社 | 移動体通信システム |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11916835B2 (en) | 2015-10-22 | 2024-02-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus relating to selective enhancement of radio signals |
JP2019501572A (ja) * | 2015-11-23 | 2019-01-17 | クアルコム,インコーポレイテッド | ビームフォーミングおよびユーザ機器グループ化 |
JP7060575B2 (ja) | 2016-08-12 | 2022-04-26 | 大唐移▲動▼通信▲設▼▲備▼有限公司 | ダウンリンクビーム訓練方法および装置 |
US11664876B2 (en) | 2016-08-12 | 2023-05-30 | Datang Mobile Communications Equipment Co., Ltd. | Method and device for training downlink beams |
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US20140044044A1 (en) | 2014-02-13 |
WO2014027824A1 (en) | 2014-02-20 |
KR20150043310A (ko) | 2015-04-22 |
EP2883381B1 (en) | 2020-01-01 |
EP2883381A4 (en) | 2016-04-06 |
EP2883381A1 (en) | 2015-06-17 |
KR102100462B1 (ko) | 2020-05-15 |
JP6614973B2 (ja) | 2019-12-04 |
CN104541540B (zh) | 2018-11-30 |
CN104541540A (zh) | 2015-04-22 |
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