WO2011140782A1 - 多输入多输出系统的下行传输方法和基站 - Google Patents
多输入多输出系统的下行传输方法和基站 Download PDFInfo
- Publication number
- WO2011140782A1 WO2011140782A1 PCT/CN2010/077786 CN2010077786W WO2011140782A1 WO 2011140782 A1 WO2011140782 A1 WO 2011140782A1 CN 2010077786 W CN2010077786 W CN 2010077786W WO 2011140782 A1 WO2011140782 A1 WO 2011140782A1
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- WO
- WIPO (PCT)
- Prior art keywords
- channel
- indication value
- downlink transmission
- value
- correlation
- Prior art date
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Classifications
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
-
- 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]
-
- 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
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
-
- 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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- 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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
- H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10851286.4A EP2547027B1 (en) | 2010-05-11 | 2010-10-15 | Downlink transmission method and base station in multiple-input and multiple-output (mimo) system |
JP2013508352A JP5550200B2 (ja) | 2010-05-11 | 2010-10-15 | 多入力多出力システムにおけるダウンリンク伝送方法及び基地局 |
US13/639,870 US8724653B2 (en) | 2010-05-11 | 2010-10-15 | Downlink transmission method and eNodeB in multiple input multiple output system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010169502.9 | 2010-05-11 | ||
CN201010169502.9A CN102244564B (zh) | 2010-05-11 | 2010-05-11 | 多输入多输出mimo系统的下行传输方法和基站 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011140782A1 true WO2011140782A1 (zh) | 2011-11-17 |
Family
ID=44913869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2010/077786 WO2011140782A1 (zh) | 2010-05-11 | 2010-10-15 | 多输入多输出系统的下行传输方法和基站 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8724653B2 (zh) |
EP (1) | EP2547027B1 (zh) |
JP (1) | JP5550200B2 (zh) |
CN (1) | CN102244564B (zh) |
WO (1) | WO2011140782A1 (zh) |
Cited By (1)
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---|---|---|---|---|
JP2016524381A (ja) * | 2013-05-23 | 2016-08-12 | ゼットティーイー コーポレイション | 伝送モード切り替え方法および装置、並びにコンピュータ記憶媒体 |
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CN102244566B (zh) * | 2010-05-11 | 2014-03-12 | 中兴通讯股份有限公司 | 用于多输入多输出系统的下行传输方法和基站 |
WO2012158092A1 (en) * | 2011-05-13 | 2012-11-22 | Telefonaktiebolaget L M Ericsson (Publ) | Method, radio network controller, radio base station and user equipment for selecting downlink mode |
CN107210811B (zh) * | 2015-01-16 | 2021-05-11 | 梁平 | 用于分布式大规模mimo(dm-mimo)的方法 |
CN105871443B (zh) * | 2015-01-23 | 2019-04-30 | 深圳市中兴微电子技术有限公司 | 一种指示信息修正方法及系统 |
US9780973B2 (en) * | 2015-03-02 | 2017-10-03 | Nxp Usa, Inc. | Channel estimation system for wireless communication system |
US9871642B2 (en) | 2015-06-25 | 2018-01-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Enabling higher-order modulation in a cellular network |
US9670648B2 (en) | 2015-08-10 | 2017-06-06 | Caterpillar Inc. | Replaceable tip systems for a tine |
CN105282808B (zh) * | 2015-09-09 | 2018-06-19 | 国家电网公司 | 一种智能电能表通信模块双模通信信道划分方法 |
CN106059972B (zh) * | 2016-05-25 | 2019-04-26 | 北京邮电大学 | 一种基于机器学习算法的mimo相关信道下的调制识别方法 |
US11018781B2 (en) * | 2017-01-31 | 2021-05-25 | Nokia Solutions And Networks Oy | Base station efficiency control based on load counters |
CN111970101B (zh) * | 2018-01-05 | 2022-07-05 | 上海朗帛通信技术有限公司 | 一种被用于无线通信的用户设备、基站中的方法和装置 |
US11503649B2 (en) * | 2020-06-12 | 2022-11-15 | Ahmad Jalali | Uplink-initiated fast and low overhead initial access for MU MIMO systems |
CN111865663B (zh) * | 2020-06-16 | 2023-04-18 | 北京瀚诺半导体科技有限公司 | 一种信道恶化以及网络过载进行告警的方法及系统 |
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CN1653721A (zh) * | 2002-02-26 | 2005-08-10 | 高通股份有限公司 | 多个传输模式的多输入、多输出(mimo)系统 |
KR20080021494A (ko) * | 2006-08-31 | 2008-03-07 | 삼성전자주식회사 | 다중 사용자 다중 송수신 안테나 시스템 및 방법 |
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US20060203794A1 (en) | 2005-03-10 | 2006-09-14 | Qualcomm Incorporated | Systems and methods for beamforming in multi-input multi-output communication systems |
CN1996992A (zh) * | 2006-01-06 | 2007-07-11 | 北京三星通信技术研究有限公司 | 用于分布式和局部式传输模式间转换的方法 |
US8111782B2 (en) | 2006-08-31 | 2012-02-07 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting/receiving data in a multi-antenna system, and system using the same |
US8885744B2 (en) * | 2006-11-10 | 2014-11-11 | Qualcomm Incorporated | Providing antenna diversity in a wireless communication system |
KR101407136B1 (ko) * | 2007-08-06 | 2014-06-13 | 엘지전자 주식회사 | Tdd 무선 통신 시스템에서의 데이터 전송 방법 |
JP5069083B2 (ja) * | 2007-10-30 | 2012-11-07 | 株式会社エヌ・ティ・ティ・ドコモ | ユーザ装置、基地局装置及びmimo伝送制御方法 |
JP4619392B2 (ja) | 2007-10-31 | 2011-01-26 | 日本電信電話株式会社 | 空間多重伝送用送信方法及び通信装置 |
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- 2010-05-11 CN CN201010169502.9A patent/CN102244564B/zh active Active
- 2010-10-15 EP EP10851286.4A patent/EP2547027B1/en active Active
- 2010-10-15 WO PCT/CN2010/077786 patent/WO2011140782A1/zh active Application Filing
- 2010-10-15 JP JP2013508352A patent/JP5550200B2/ja active Active
- 2010-10-15 US US13/639,870 patent/US8724653B2/en active Active
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Cited By (2)
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JP2016524381A (ja) * | 2013-05-23 | 2016-08-12 | ゼットティーイー コーポレイション | 伝送モード切り替え方法および装置、並びにコンピュータ記憶媒体 |
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Also Published As
Publication number | Publication date |
---|---|
EP2547027A1 (en) | 2013-01-16 |
CN102244564B (zh) | 2014-12-10 |
JP5550200B2 (ja) | 2014-07-16 |
JP2013530592A (ja) | 2013-07-25 |
US8724653B2 (en) | 2014-05-13 |
EP2547027A4 (en) | 2016-01-20 |
CN102244564A (zh) | 2011-11-16 |
US20130039234A1 (en) | 2013-02-14 |
EP2547027B1 (en) | 2017-10-11 |
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