BRPI0817761A2 - Algoritmo de raiz quadrada rápida equalização mimo - Google Patents

Algoritmo de raiz quadrada rápida equalização mimo

Info

Publication number
BRPI0817761A2
BRPI0817761A2 BRPI0817761-9A BRPI0817761A BRPI0817761A2 BR PI0817761 A2 BRPI0817761 A2 BR PI0817761A2 BR PI0817761 A BRPI0817761 A BR PI0817761A BR PI0817761 A2 BRPI0817761 A2 BR PI0817761A2
Authority
BR
Brazil
Prior art keywords
square root
fast square
root algorithm
algorithm maximum
maximum equalization
Prior art date
Application number
BRPI0817761-9A
Other languages
English (en)
Inventor
Dhananjay Ashok Gore
Hemanth Sampath
Edward Harrison Teague
Original Assignee
Qualcomm Inc
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
Priority claimed from US12/041,616 external-priority patent/US8411732B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0817761A2 publication Critical patent/BRPI0817761A2/pt

Links

Classifications

    • 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
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/021—Estimation of channel covariance
    • 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
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with 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
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03605—Block algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
BRPI0817761-9A 2007-10-11 2008-10-09 Algoritmo de raiz quadrada rápida equalização mimo BRPI0817761A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US97918407P 2007-10-11 2007-10-11
US12/041,616 US8411732B2 (en) 2007-03-21 2008-03-03 Fast square root algorithm for MIMO equalization
US12/247,055 US8335248B2 (en) 2007-03-21 2008-10-07 Fast square root algorithm for MIMO equalization
PCT/US2008/079333 WO2009049039A1 (en) 2007-10-11 2008-10-09 Fast square root algorithm for mimo equalization

Publications (1)

Publication Number Publication Date
BRPI0817761A2 true BRPI0817761A2 (pt) 2015-08-04

Family

ID=40091593

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0817761-9A BRPI0817761A2 (pt) 2007-10-11 2008-10-09 Algoritmo de raiz quadrada rápida equalização mimo

Country Status (9)

Country Link
US (1) US8335248B2 (pt)
EP (1) EP2201701A1 (pt)
JP (1) JP2011501521A (pt)
KR (1) KR101115158B1 (pt)
CN (1) CN101821963A (pt)
BR (1) BRPI0817761A2 (pt)
CA (1) CA2699573A1 (pt)
TW (1) TWI394390B (pt)
WO (1) WO2009049039A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7852951B2 (en) * 2005-09-30 2010-12-14 Intel Corporation Multicarrier receiver for multiple-input multiple-output wireless communication systems and method
US8411732B2 (en) * 2007-03-21 2013-04-02 Qualcomm Incorporated Fast square root algorithm for MIMO equalization
KR101329012B1 (ko) * 2007-10-11 2013-11-12 삼성전자주식회사 Ｍｉｍｏ 수신장치 및 그 장치의 신호검출방법
US8097967B2 (en) 2008-06-30 2012-01-17 Demand Energy Networks, Inc. Energy systems, energy devices, energy utilization methods, and energy transfer methods
US20130034000A1 (en) * 2010-01-12 2013-02-07 David Huo Method of variable rate single user and multi user mimo feedback for mobile communications system
EP2458747A1 (en) * 2010-11-30 2012-05-30 ST-Ericsson SA Detection process for a receiver of a wireless MIMO communication system
CN102316069B (zh) * 2011-09-21 2017-02-15 中兴通讯股份有限公司 一种实现信道信息反馈的方法和装置
KR102117024B1 (ko) 2012-11-28 2020-06-01 삼성전자 주식회사 무선 통신 시스템의 통신 방법 및 장치
US9843462B2 (en) 2016-04-08 2017-12-12 Collision Communications, Inc. Wireless receiver for turbo loop multiuser detection incorporating reuse of QR component
TWI641243B (zh) 2017-10-02 2018-11-11 明泰科技股份有限公司 多天線網路系統及其基地台、伺服器及信號處理方法
CN111585920B (zh) * 2020-03-25 2021-02-12 北京理工大学 一种基于单载波频域均衡的抗单音干扰方法及装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5075694A (en) * 1987-05-18 1991-12-24 Avion Systems, Inc. Airborne surveillance method and system
GB2298338B (en) * 1995-02-15 1999-09-29 Motorola Ltd A method for reverse channel sounding in a communications system
US6600796B1 (en) 1999-11-12 2003-07-29 Lucent Technologies Inc. Method and apparatus for receiving wireless transmissions using multiple-antenna arrays
US7058147B2 (en) * 2001-02-28 2006-06-06 At&T Corp. Efficient reduced complexity windowed optimal time domain equalizer for discrete multitone-based DSL modems
JP3930269B2 (ja) * 2001-06-29 2007-06-13 日本無線株式会社 分割処理型アダプティブアレイアンテナ
JP3709357B2 (ja) 2001-06-29 2005-10-26 アイコム株式会社 アクティブ・フェーズド・アレー・アンテナ
US6745052B2 (en) 2001-07-27 2004-06-01 Qualcomm, Incorporated Method and apparatus for signal equalization in a communication system with multiple receiver antennas
US7181167B2 (en) * 2001-11-21 2007-02-20 Texas Instruments Incorporated High data rate closed loop MIMO scheme combining transmit diversity and data multiplexing
DE60206873T2 (de) * 2002-02-14 2006-06-14 Lucent Technologies Inc Empfänger und Verfahren für mehrfacheingabe und mehrfachausgabe iterative Detektion mittels Rückkopplung von weichen Entscheidungen
US7099299B2 (en) * 2002-03-04 2006-08-29 Agency For Science, Technology And Research CDMA system with frequency domain equalization
KR20050119143A (ko) 2003-04-21 2005-12-20 미쓰비시덴키 가부시키가이샤 무선통신장치, 송신장치, 수신장치 및 무선통신시스템
US6944434B2 (en) * 2003-06-27 2005-09-13 Nokia Corporation Method and apparatus for suppressing co-channel interference in a receiver
US8013787B2 (en) 2003-09-02 2011-09-06 Sirf Technology Inc. Control and features for satellite positioning system receivers
KR20070020390A (ko) 2004-06-08 2007-02-21 샌드브리지 테크놀로지스, 인코포레이티드 직교 주파수 분할 멀티플렉싱 수신기
US8737189B2 (en) * 2005-02-16 2014-05-27 Broadcom Corporation Method and system for compromise greenfield preambles for 802.11n
US20060098580A1 (en) * 2004-11-08 2006-05-11 Qinghua Li Apparatus and method capable of beam forming adjustments
US7961824B2 (en) 2005-03-02 2011-06-14 Mitsubishi Electric Corporation Receiver apparatus
US7551565B2 (en) * 2005-03-03 2009-06-23 Cisco Technology, Inc. User semantic overlay for troubleshooting convergent network problems
US7379445B2 (en) * 2005-03-31 2008-05-27 Yongfang Guo Platform noise mitigation in OFDM receivers
US8483200B2 (en) * 2005-04-07 2013-07-09 Interdigital Technology Corporation Method and apparatus for antenna mapping selection in MIMO-OFDM wireless networks
US8411732B2 (en) * 2007-03-21 2013-04-02 Qualcomm Incorporated Fast square root algorithm for MIMO equalization

Also Published As

Publication number Publication date
CA2699573A1 (en) 2009-04-16
TW200931848A (en) 2009-07-16
KR101115158B1 (ko) 2012-02-22
TWI394390B (zh) 2013-04-21
JP2011501521A (ja) 2011-01-06
US20090080508A1 (en) 2009-03-26
CN101821963A (zh) 2010-09-01
EP2201701A1 (en) 2010-06-30
US8335248B2 (en) 2012-12-18
WO2009049039A1 (en) 2009-04-16
KR20100076013A (ko) 2010-07-05

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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]

Free format text: REFERENTE AS 6A E 7A ANUIDADES.

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 2344 DE 08-12-2015 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.