WO2009057559A1 - ユーザ装置、基地局装置及びmimo伝送制御方法 - Google Patents
ユーザ装置、基地局装置及びmimo伝送制御方法 Download PDFInfo
- Publication number
- WO2009057559A1 WO2009057559A1 PCT/JP2008/069469 JP2008069469W WO2009057559A1 WO 2009057559 A1 WO2009057559 A1 WO 2009057559A1 JP 2008069469 W JP2008069469 W JP 2008069469W WO 2009057559 A1 WO2009057559 A1 WO 2009057559A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- station device
- user device
- mimo transmission
- control method
- Prior art date
Links
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
- H04B7/0417—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
- H04B7/06—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
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- 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
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
プリコーディングを用いたMIMO伝送システムでランクアダプテーションを行う基地局装置と通信するユーザ装置は、前記基地局装置から通知されたランクで、プリコーディングマトリクスインジケータ(PMI)をチャネル状態に応じて決定するPMI決定部;及び前記PMIを前記基地局装置に送信する送信部;を有する。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007282442A JP5069083B2 (ja) | 2007-10-30 | 2007-10-30 | ユーザ装置、基地局装置及びmimo伝送制御方法 |
JP2007-282442 | 2007-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009057559A1 true WO2009057559A1 (ja) | 2009-05-07 |
Family
ID=40590950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/069469 WO2009057559A1 (ja) | 2007-10-30 | 2008-10-27 | ユーザ装置、基地局装置及びmimo伝送制御方法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5069083B2 (ja) |
WO (1) | WO2009057559A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011020317A1 (zh) * | 2009-08-19 | 2011-02-24 | 中兴通讯股份有限公司 | 一种秩自适应方法及装置 |
WO2012134334A1 (en) * | 2011-04-01 | 2012-10-04 | Intel Corporation | Methods, apparatuses, and systems for flexible rank adaptation in a wireless communication network |
US10462801B2 (en) | 2017-05-05 | 2019-10-29 | At&T Intellectual Property I, L.P. | Multi-antenna transmission protocols for high doppler conditions |
US10470072B2 (en) | 2017-06-15 | 2019-11-05 | At&T Intellectual Property I, L.P. | Facilitation of multiple input multiple output communication for 5G or other next generation network |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009096601A1 (en) * | 2008-02-01 | 2009-08-06 | Nec Corporation | Estimating channel conditions in a mimo ofdm communication system |
US20130336193A1 (en) | 2012-06-19 | 2013-12-19 | Qualcomm Incorporated | Network information for assisting user equipment |
US9264097B2 (en) | 2009-06-04 | 2016-02-16 | Qualcomm Incorporated | Interference mitigation for downlink in a wireless communication system |
JP5325672B2 (ja) | 2009-06-23 | 2013-10-23 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局装置及び情報フィードバック方法 |
CN102201886B (zh) * | 2010-03-22 | 2014-03-12 | 中兴通讯股份有限公司 | 闭环多输入多输出系统中预编码矩阵的选取方法和系统 |
KR101871707B1 (ko) * | 2010-04-02 | 2018-06-27 | 엘지전자 주식회사 | 무선통신 시스템에서 채널상태정보 피드백 하는 단말 장치 및 그 방법 |
KR101843019B1 (ko) * | 2010-04-30 | 2018-03-29 | 삼성전자주식회사 | 여러 리포팅 모드를 지원하는 다중 입출력 통신 시스템 |
CN102244564B (zh) | 2010-05-11 | 2014-12-10 | 中兴通讯股份有限公司 | 多输入多输出mimo系统的下行传输方法和基站 |
IN2010DE02109A (ja) * | 2010-09-03 | 2015-08-14 | Motorola Mobility Inc | |
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 |
JP5484304B2 (ja) * | 2010-12-10 | 2014-05-07 | 三菱電機株式会社 | 無線基地局装置及び通信条件決定方法 |
CN102882657B (zh) | 2011-07-15 | 2018-01-23 | 瑞典爱立信有限公司 | 用于上行链路秩自适应的方法、设备和系统 |
EP2642683B1 (en) | 2012-03-19 | 2021-01-20 | Alcatel Lucent | Method and apparatus for resource allocation in a MIMO communication system |
US9735848B2 (en) | 2012-10-18 | 2017-08-15 | Kyocera Corporation | Mobile communication system and communication control method |
-
2007
- 2007-10-30 JP JP2007282442A patent/JP5069083B2/ja not_active Expired - Fee Related
-
2008
- 2008-10-27 WO PCT/JP2008/069469 patent/WO2009057559A1/ja active Application Filing
Non-Patent Citations (2)
Title |
---|
"Texas Instruments, Design Aspects of UE Feedback, R1-073423", 24 August 2007 * |
NOTEL: "Rank Adaptation for Fixed Precording, R1-073297", 24 August 2007 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011020317A1 (zh) * | 2009-08-19 | 2011-02-24 | 中兴通讯股份有限公司 | 一种秩自适应方法及装置 |
CN101998498B (zh) * | 2009-08-19 | 2013-11-06 | 中兴通讯股份有限公司 | 一种秩自适应方法及装置 |
US8755810B2 (en) | 2009-08-19 | 2014-06-17 | Zte Corporation | Method and device for rank adaptation |
WO2012134334A1 (en) * | 2011-04-01 | 2012-10-04 | Intel Corporation | Methods, apparatuses, and systems for flexible rank adaptation in a wireless communication network |
US10462801B2 (en) | 2017-05-05 | 2019-10-29 | At&T Intellectual Property I, L.P. | Multi-antenna transmission protocols for high doppler conditions |
US10986645B2 (en) | 2017-05-05 | 2021-04-20 | At&T Intellectual Property I, L.P. | Multi-antenna transmission protocols for high doppler conditions |
US11452111B2 (en) | 2017-05-05 | 2022-09-20 | At&T Intellectual Property I, L.P. | Multi-antenna transmission protocols for high doppler conditions |
US10470072B2 (en) | 2017-06-15 | 2019-11-05 | At&T Intellectual Property I, L.P. | Facilitation of multiple input multiple output communication for 5G or other next generation network |
US10887784B2 (en) | 2017-06-15 | 2021-01-05 | At&T Intellectual Property I, L.P. | Facilitation of multiple input multiple output communication for 5G or other next generation network |
US11425590B2 (en) | 2017-06-15 | 2022-08-23 | At&T Intetllectual Property I, L.P. | Facilitation of multiple input multiple output communication for 5G or other next generation network |
Also Published As
Publication number | Publication date |
---|---|
JP5069083B2 (ja) | 2012-11-07 |
JP2009111781A (ja) | 2009-05-21 |
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