BR112012004073A2 - "esquema de pré-codificação não unitária para comunicações sem fio" - Google Patents

"esquema de pré-codificação não unitária para comunicações sem fio"

Info

Publication number
BR112012004073A2
BR112012004073A2 BR112012004073A BR112012004073A BR112012004073A2 BR 112012004073 A2 BR112012004073 A2 BR 112012004073A2 BR 112012004073 A BR112012004073 A BR 112012004073A BR 112012004073 A BR112012004073 A BR 112012004073A BR 112012004073 A2 BR112012004073 A2 BR 112012004073A2
Authority
BR
Brazil
Prior art keywords
nonunitary
wireless communications
coding scheme
coding
scheme
Prior art date
Application number
BR112012004073A
Other languages
English (en)
Inventor
Z Zhou Feng
Li Guangjie
Zheng Hongming
Zheng Shanshan
Original Assignee
Intel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intel Corp filed Critical Intel Corp
Publication of BR112012004073A2 publication Critical patent/BR112012004073A2/pt

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
    • H04B7/06—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
    • H04B7/0413—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
    • H04B7/0452—Multi-user MIMO 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
    • H04B7/0636—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
    • H04B7/0613—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
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0256—Channel estimation using minimum mean square error criteria

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
BR112012004073A 2009-09-25 2010-09-08 "esquema de pré-codificação não unitária para comunicações sem fio" BR112012004073A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/567,220 US20110075752A1 (en) 2009-09-25 2009-09-25 Non-unitary precoding scheme for wireless communications
PCT/US2010/048050 WO2011037745A2 (en) 2009-09-25 2010-09-08 Non-unitary precoding scheme for wireless communications

Publications (1)

Publication Number Publication Date
BR112012004073A2 true BR112012004073A2 (pt) 2019-09-24

Family

ID=43780372

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012004073A BR112012004073A2 (pt) 2009-09-25 2010-09-08 "esquema de pré-codificação não unitária para comunicações sem fio"

Country Status (8)

Country Link
US (1) US20110075752A1 (pt)
EP (1) EP2481167A2 (pt)
JP (1) JP5596156B2 (pt)
KR (1) KR101419617B1 (pt)
CN (1) CN102668401A (pt)
BR (1) BR112012004073A2 (pt)
TW (1) TWI443992B (pt)
WO (1) WO2011037745A2 (pt)

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MY164733A (en) * 2010-10-01 2018-01-30 Ericsson Telefon Ab L M Method and arrangement in a wireless communication system
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CN103731233B (zh) * 2012-10-12 2018-07-03 华为技术有限公司 码字反馈方法及接收机
US9596065B2 (en) 2012-10-24 2017-03-14 Qualcomm Incorporated Enhanced SRS transmission for MIMO operation in LTE-A
US9166663B2 (en) * 2012-12-14 2015-10-20 Futurewei Technologies, Inc. System and method for open-loop MIMO communications in a SCMA communications system
US9331883B1 (en) * 2013-03-05 2016-05-03 Quantenna Communications, Inc. Wireless home network supporting concurrent links to legacy devices
CN104135314B (zh) * 2013-04-30 2018-04-27 上海诺基亚贝尔股份有限公司 Mimo系统中的多天线信道码本反馈方法及装置
CN104980206B (zh) * 2014-04-11 2018-06-15 普天信息技术有限公司 一种波束赋形方法
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CN111630788B (zh) * 2018-02-09 2023-05-26 上海诺基亚贝尔股份有限公司 用于非线性预编码的装置和方法
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KR102448059B1 (ko) * 2019-05-02 2022-09-27 한국전자통신연구원 통신 시스템에서 비밀키를 사용한 통신 방법 및 장치
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Also Published As

Publication number Publication date
JP5596156B2 (ja) 2014-09-24
TW201134118A (en) 2011-10-01
WO2011037745A2 (en) 2011-03-31
US20110075752A1 (en) 2011-03-31
KR101419617B1 (ko) 2014-07-15
WO2011037745A3 (en) 2011-07-28
KR20120049368A (ko) 2012-05-16
CN102668401A (zh) 2012-09-12
JP2013505672A (ja) 2013-02-14
TWI443992B (zh) 2014-07-01
EP2481167A2 (en) 2012-08-01

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2543 DE 01-10-2019 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.