IN2015DN01302A - - Google Patents
Info
- Publication number
- IN2015DN01302A IN2015DN01302A IN1302DEN2015A IN2015DN01302A IN 2015DN01302 A IN2015DN01302 A IN 2015DN01302A IN 1302DEN2015 A IN1302DEN2015 A IN 1302DEN2015A IN 2015DN01302 A IN2015DN01302 A IN 2015DN01302A
- Authority
- IN
- India
- Prior art keywords
- communications node
- precoder matrix
- ues
- precoding
- scheduling
- 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
- H04B7/0456—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
- H04B7/0452—Multi-user MIMO systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
-
- 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
- H04B7/0645—Variable feedback
- H04B7/065—Variable contents, e.g. long-term or short-short
-
- 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
- H04L25/03891—Spatial equalizers
-
- 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
- H04B7/0482—Adaptive codebooks
-
- 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
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank 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
- H04B7/0613—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
- H04B7/0613—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2012904070A AU2012904070A0 (en) | 2012-09-18 | Method for Improving Transmission Capacity in a DL MU-MIMO Communications System | |
PCT/JP2013/075604 WO2014046273A1 (en) | 2012-09-18 | 2013-09-13 | Method for improving transmission capacity in a dl mu-mimo communications system |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2015DN01302A true IN2015DN01302A (ja) | 2015-07-03 |
Family
ID=50341572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1302DEN2015 IN2015DN01302A (ja) | 2012-09-18 | 2013-09-13 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9473225B2 (ja) |
EP (1) | EP2898721B1 (ja) |
JP (1) | JP5900707B2 (ja) |
CN (1) | CN104662942B (ja) |
AU (1) | AU2013318923B2 (ja) |
IN (1) | IN2015DN01302A (ja) |
WO (1) | WO2014046273A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN2015DN01302A (ja) * | 2012-09-18 | 2015-07-03 | Nec Corp | |
JP6251118B2 (ja) * | 2014-05-15 | 2017-12-20 | 日本電信電話株式会社 | 空間多重スケジューリング方法、基地局装置及びプログラム |
JP6581530B2 (ja) * | 2016-03-11 | 2019-09-25 | 株式会社Nttドコモ | 基地局 |
US10523287B1 (en) * | 2018-11-28 | 2019-12-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission parameter assignment for MU-MIMO wireless devices |
JP7003324B2 (ja) * | 2019-03-25 | 2022-01-20 | 三菱電機株式会社 | 下位無線基地局、空間多重ストリーム数の制御方法、制御回路およびプログラム |
CN114448481B (zh) * | 2022-01-20 | 2023-05-05 | 重庆工程学院 | 一种车联网下基于用户调度的大规模mimo预编码方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007036073A1 (en) * | 2005-09-30 | 2007-04-05 | Huawei Technologies Co., Ltd. | Resource allocation method for mimo-ofdm of multi-user access systems |
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 |
CN101820405B (zh) * | 2009-02-27 | 2013-11-06 | 富士通株式会社 | 多输入多输出合作通信方法、预编码装置和无线通信*** |
US8711716B2 (en) | 2009-06-19 | 2014-04-29 | Texas Instruments Incorporated | Multiple CQI feedback for cellular networks |
KR20100138845A (ko) | 2009-06-25 | 2010-12-31 | 주식회사 팬택 | 무선 통신 시스템에서의 프리코더 선택 방법과 그를 이용한 장치, 단말의 채널정보 피드백 방법, 그 단말, 기지국의 채널정보 수신 방법 |
US9137802B2 (en) * | 2009-08-18 | 2015-09-15 | Qualcomm Incorporated | DL MU-MIMO operation in LTE-A |
WO2011065763A2 (ko) * | 2009-11-30 | 2011-06-03 | 엘지전자 주식회사 | 프리코딩 행렬 정보를 전송하는 방법 및 사용자기기와, 복수의 사용자기기에 데이터를 전송하는 방법 및 기지국 |
JP5296004B2 (ja) | 2010-04-23 | 2013-09-25 | 株式会社エヌ・ティ・ティ・ドコモ | フィードバック情報送信方法、移動局装置及び基地局装置 |
CN101867447B (zh) * | 2010-04-30 | 2015-09-16 | 中兴通讯股份有限公司 | 信道状态信息的反馈方法及终端 |
CN102948085B (zh) | 2010-06-18 | 2016-08-24 | 日本电气株式会社 | 针对无线电通信***中下行链路协同多点传输的预编码技术 |
CN102468939B (zh) | 2010-11-05 | 2015-07-08 | 索尼公司 | 下行信道反馈信息反馈方法和装置及用户配对方法和装置 |
CN103477568B (zh) | 2010-11-15 | 2017-02-22 | 爱立信(中国)通信有限公司 | Mimo***中的二维ue配对的方法和装置 |
IN2015DN01302A (ja) * | 2012-09-18 | 2015-07-03 | Nec Corp |
-
2013
- 2013-09-13 IN IN1302DEN2015 patent/IN2015DN01302A/en unknown
- 2013-09-13 WO PCT/JP2013/075604 patent/WO2014046273A1/en active Application Filing
- 2013-09-13 CN CN201380048699.2A patent/CN104662942B/zh active Active
- 2013-09-13 AU AU2013318923A patent/AU2013318923B2/en not_active Ceased
- 2013-09-13 EP EP13838760.0A patent/EP2898721B1/en active Active
- 2013-09-13 US US14/425,962 patent/US9473225B2/en active Active
- 2013-09-13 JP JP2015531716A patent/JP5900707B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2015528680A (ja) | 2015-09-28 |
CN104662942A (zh) | 2015-05-27 |
EP2898721B1 (en) | 2018-06-06 |
AU2013318923A1 (en) | 2015-03-05 |
AU2013318923B2 (en) | 2015-09-17 |
CN104662942B (zh) | 2018-11-16 |
WO2014046273A1 (en) | 2014-03-27 |
EP2898721A4 (en) | 2016-06-29 |
US20150236767A1 (en) | 2015-08-20 |
US9473225B2 (en) | 2016-10-18 |
JP5900707B2 (ja) | 2016-04-06 |
EP2898721A1 (en) | 2015-07-29 |
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