[go: up one dir, main page]

AR052436A1 - Metodos y aparatos para la mitigacion del efecto de correlacion en un sistema de comunicacion de multiples antenas - Google Patents

Metodos y aparatos para la mitigacion del efecto de correlacion en un sistema de comunicacion de multiples antenas

Info

Publication number
AR052436A1
AR052436A1 ARP050105456A ARP050105456A AR052436A1 AR 052436 A1 AR052436 A1 AR 052436A1 AR P050105456 A ARP050105456 A AR P050105456A AR P050105456 A ARP050105456 A AR P050105456A AR 052436 A1 AR052436 A1 AR 052436A1
Authority
AR
Argentina
Prior art keywords
methods
multiple antennas
mitigation
appliances
communication system
Prior art date
Application number
ARP050105456A
Other languages
English (en)
Inventor
Alexei Gorokhov
Tamer Kadous
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of AR052436A1 publication Critical patent/AR052436A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • 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
    • H04B7/0697—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 spatial multiplexing
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Métodos y sistemas para la transmision de una cantidad de flujos de símbolos de modulacion mediante un transmisor de multiples antenas. En un aspecto, un método para la transmision de una cantidad de flujos de símbolos de modulacion mediante a transmisor de multiples antenas incluye los actos de transformar una primera cantidad de flujos de símbolos en una segunda cantidad de flujos de símbolos, siendo la primera cantidad menor que o la segunda cantidad; y la transmision e la segunda cantidad de flujos de símbolos mediante un transmisor que presenta la segunda cantidad de antenas.
ARP050105456A 2004-12-22 2005-12-21 Metodos y aparatos para la mitigacion del efecto de correlacion en un sistema de comunicacion de multiples antenas AR052436A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/022,418 US7974359B2 (en) 2004-12-22 2004-12-22 Methods and apparatus for mitigating multi-antenna correlation effect in communication systems

Publications (1)

Publication Number Publication Date
AR052436A1 true AR052436A1 (es) 2007-03-21

Family

ID=36407978

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP050105456A AR052436A1 (es) 2004-12-22 2005-12-21 Metodos y aparatos para la mitigacion del efecto de correlacion en un sistema de comunicacion de multiples antenas

Country Status (9)

Country Link
US (1) US7974359B2 (es)
EP (1) EP1834420B1 (es)
JP (1) JP4965458B2 (es)
KR (1) KR100933154B1 (es)
CN (1) CN101103552B (es)
AR (1) AR052436A1 (es)
CA (1) CA2592410A1 (es)
TW (1) TW200642331A (es)
WO (1) WO2006069271A2 (es)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
US8169889B2 (en) 2004-02-18 2012-05-01 Qualcomm Incorporated Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US8923785B2 (en) * 2004-05-07 2014-12-30 Qualcomm Incorporated Continuous beamforming for a MIMO-OFDM system
US7110463B2 (en) * 2004-06-30 2006-09-19 Qualcomm, Incorporated Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system
US7978649B2 (en) * 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
US7672388B2 (en) * 2006-03-23 2010-03-02 Motorola, Inc. Method of providing signal diversity in an OFDM system
US8543070B2 (en) * 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
KR20070113967A (ko) * 2006-05-26 2007-11-29 엘지전자 주식회사 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기
TWI343200B (en) * 2006-05-26 2011-06-01 Lg Electronics Inc Method and apparatus for signal generation using phase-shift based pre-coding
KR101295576B1 (ko) * 2006-06-22 2013-08-09 엘지전자 주식회사 위상천이 기반의 프리코딩을 이용한 데이터 전송 방법 및이를 구현하는 송신 장치
KR20080026010A (ko) * 2006-09-19 2008-03-24 엘지전자 주식회사 위상천이 기반의 프리코딩을 이용한 데이터 전송 방법 및이를 구현하는 송수신 장치
KR20080026019A (ko) * 2006-09-19 2008-03-24 엘지전자 주식회사 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기
US8259836B2 (en) * 2006-12-04 2012-09-04 Samsung Electronics Co., Ltd. Method and system for generating candidate beamforming coefficients for transmission of data over a wireless medium
US8265177B2 (en) * 2006-12-04 2012-09-11 Samsung Electronics Co., Ltd. System and method for wireless communication of uncompressed high definition video data using beambook-constructed beamforming signals
US8040856B2 (en) * 2006-12-04 2011-10-18 Samsung Electronics Co., Ltd. System and method for wireless communication of uncompressed high definition video data using a beamforming acquisition protocol
KR20080076683A (ko) * 2007-02-14 2008-08-20 엘지전자 주식회사 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기
PL2145400T3 (pl) 2007-04-30 2013-08-30 Ericsson Telefon Ab L M Sposób i układ do adaptacji transmisji wieloantenowej
CN101340265B (zh) * 2007-07-03 2012-12-26 株式会社Ntt都科摩 无线通信中的数据流处理方法及装置
KR101454027B1 (ko) * 2007-08-10 2014-10-24 한국전자통신연구원 병렬 구조를 가지는 시분할 다중화 통신 시스템 및 방법
US8223873B2 (en) * 2007-08-13 2012-07-17 Samsung Electronics Co., Ltd. System and method for acquiring beamforming vectors using training sequences with adaptive spreading gains
KR20090030200A (ko) 2007-09-19 2009-03-24 엘지전자 주식회사 위상천이 기반의 프리코딩을 이용한 데이터 송수신 방법 및이를 지원하는 송수신기
CN101471907A (zh) 2007-12-28 2009-07-01 三星电子株式会社 多入多出系统中的预编码方法及使用该方法的装置
KR101529736B1 (ko) 2008-03-05 2015-06-29 엘지전자 주식회사 다중 안테나 시스템에서 데이터 전송 방법
US20090231196A1 (en) * 2008-03-11 2009-09-17 Huaning Niu Mmwave wpan communication system with fast adaptive beam tracking
US8625508B2 (en) * 2008-04-29 2014-01-07 Electronics And Telecommunications Research Institute Apparatus and method for transmitting data using multiple antenna for single carrier frequency division multiple access system
US20090316804A1 (en) * 2008-06-20 2009-12-24 Legend Silicon Corp. Method and apparatus to implement ofdma ranging in wimax system
WO2010002609A1 (en) 2008-07-02 2010-01-07 Marvell World Trade Ltd. Dynamic symbol to antenna and subcarrier mapping for chase-combining harq
EP3297177A1 (en) 2010-06-18 2018-03-21 Commscope Technologies LLC Digital distributed antenna system with improved data transmission features
EP2865153B1 (en) * 2012-06-25 2018-12-26 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
US9692123B2 (en) * 2012-09-17 2017-06-27 Qualcomm Incorporated Systems and methods of controlling antenna radiation patterns
US9356672B2 (en) 2014-08-01 2016-05-31 Google Technology Holdings LLC Apparatus and methods for adaptive antenna diversity in a multi-antenna system
US9608711B2 (en) 2014-08-07 2017-03-28 Google Technology Holdings LLC Apparatus and methods for antenna correlation estimation in a multi-antenna system
CN104144040A (zh) * 2014-08-26 2014-11-12 杜岩 一种mimo通信数据发送方法和装置
CN104168247A (zh) * 2014-08-27 2014-11-26 杜岩 Mimo-ofdm系统发送多路数据流的方法和装置
US11196800B2 (en) * 2016-09-26 2021-12-07 Google Llc Systems and methods for communication efficient distributed mean estimation
KR102486149B1 (ko) * 2018-04-19 2023-01-09 삼성전자주식회사 무선 통신 시스템에서 피크 대 평균 전력 비 저감을 위한 장치 및 방법
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
CA3119325C (en) 2018-11-27 2023-07-04 XCOM Labs, Inc. Non-coherent cooperative multiple-input multiple-output communications
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US11032841B2 (en) 2019-04-26 2021-06-08 XCOM Labs, Inc. Downlink active set management for multiple-input multiple-output communications
US10756782B1 (en) 2019-04-26 2020-08-25 XCOM Labs, Inc. Uplink active set management for multiple-input multiple-output communications
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
US12088499B2 (en) 2020-04-15 2024-09-10 Virewirx, Inc. System and method for reducing data packet processing false alarms
WO2021242574A1 (en) 2020-05-26 2021-12-02 XCOM Labs, Inc. Interference-aware beamforming
WO2022087569A1 (en) 2020-10-19 2022-04-28 XCOM Labs, Inc. Reference signal for wireless communication systems
WO2022093988A1 (en) 2020-10-30 2022-05-05 XCOM Labs, Inc. Clustering and/or rate selection in multiple-input multiple-output communication systems
WO2022133443A1 (en) 2020-12-16 2022-06-23 XCOM Labs, Inc. Wireless communication with quasi-omni and directional beams
WO2022241436A1 (en) 2021-05-14 2022-11-17 XCOM Labs, Inc. Scrambling identifiers for wireless communication systems

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6874006B1 (en) * 1999-10-29 2005-03-29 Pentomics, Inc. Apparatus and method for rectangular-to-polar conversion
JP2001291602A (ja) 2000-04-05 2001-10-19 Matsushita Electric Ind Co Ltd 皮膜抵抗器
US6748024B2 (en) * 2001-03-28 2004-06-08 Nokia Corporation Non-zero complex weighted space-time code for multiple antenna transmission
US6865373B2 (en) * 2001-05-21 2005-03-08 Nortel Networks Limited Apparatus and method for encoding and decoding data within wireless networks
DE10130388B4 (de) * 2001-06-23 2011-01-13 Zf Friedrichshafen Ag Variator
CN100413224C (zh) 2001-09-12 2008-08-20 英芬能技术公司 码分多址无线系统
JP2003101609A (ja) 2001-09-25 2003-04-04 Matsushita Electric Ind Co Ltd 映像／音声データ伝送フォーマット、伝送装置
US7181167B2 (en) * 2001-11-21 2007-02-20 Texas Instruments Incorporated High data rate closed loop MIMO scheme combining transmit diversity and data multiplexing
US7336719B2 (en) * 2001-11-28 2008-02-26 Intel Corporation System and method for transmit diversity base upon transmission channel delay spread
US7133425B2 (en) 2002-07-10 2006-11-07 Solarflare Communications, Inc. Communication system
US6873606B2 (en) * 2002-10-16 2005-03-29 Qualcomm, Incorporated Rate adaptive transmission scheme for MIMO systems
US7088784B2 (en) * 2003-10-02 2006-08-08 Nokia Corporation Coded modulation for partially coherent systems
US7995667B2 (en) 2004-02-13 2011-08-09 Broadcom Corporation Reduced latency concatenated reed solomon-convolutional coding for MIMO wireless LAN
US7583982B2 (en) * 2004-08-06 2009-09-01 Interdigital Technology Corporation Method and apparatus to improve channel quality for use in wireless communications systems with multiple-input multiple-output (MIMO) antennas

Also Published As

Publication number Publication date
US20060146692A1 (en) 2006-07-06
CN101103552B (zh) 2013-05-15
TW200642331A (en) 2006-12-01
CN101103552A (zh) 2008-01-09
CA2592410A1 (en) 2006-06-29
EP1834420A2 (en) 2007-09-19
US7974359B2 (en) 2011-07-05
EP1834420B1 (en) 2017-11-29
WO2006069271A3 (en) 2006-09-08
KR20070089748A (ko) 2007-08-31
WO2006069271A2 (en) 2006-06-29
KR100933154B1 (ko) 2009-12-21
JP4965458B2 (ja) 2012-07-04
JP2008526116A (ja) 2008-07-17

Similar Documents

Publication Publication Date Title
AR052436A1 (es) Metodos y aparatos para la mitigacion del efecto de correlacion en un sistema de comunicacion de multiples antenas
AR054236A1 (es) Sistemas y metodos para la formacion de haces en sistemas en comunicaciones de multiples entradas multiples salidas
EP1953940A4 (en) MULTI-MODULATION SCHEME SUCH AS SENDING DEVICE AND RECEIVING DEVICE USING THE SCHEME
WO2014200958A3 (en) Method and apparatus for transmission by time division duplexing (tdd) devices using multiple antennas
PH12015502268A1 (en) Systems and methods for backwards-compatible preamble formats for multiple access wireless communication
MX2010009868A (es) Transmisor en sistemas de comunicacion inalambrica con estructura piloto jerarquica.
AR074258A1 (es) Metodo y aparato para transmisiones inalambricas utilizando portadores ascendentes multiples
WO2010048451A3 (en) Reverse link acknowledgment signaling
WO2009017363A3 (en) Method and apparatus for transmitting and receiving different signal types in communication systems
WO2010011056A3 (en) Method and apparatus for transmitting reference signal in multiple antenna system
AR072996A1 (es) Correlacion y senalizacion de simbolos de referencia comunes para multiples antenas
WO2011003744A3 (en) Multicarrier radio receiver and method for receiving multiple carriers
WO2010056068A3 (ko) 무선 통신 시스템에서 신호 전송 방법 및 장치
CL2004002231A1 (es) Metodo y aparato para transmitir/recibir pilotos en un sistema de transmision inalambrico utilizando multiplaxado por division de frecuencia ortogonal(ofdm).
WO2008156061A1 (ja) ユーザ装置、基地局装置及びチャネル状態情報通信方法
WO2011080299A3 (en) A terminal and a method for communicating simultaneously on two frequencies
WO2010018979A3 (ko) 무선 통신 시스템에서 정보 전송 방법 및 장치
AR076115A1 (es) Metodo y aparato para monitorear una falla de enlace radial
UA91880C2 (ru) Предварительное кодирование для планирования в беспроводных системах связи, которое зависит от сегмента
WO2018064337A3 (en) Control channel for new radio
AR044663A1 (es) Metodo y aparato para estimar desplazamiento de frecuencia de portadora y tasa de desvanecimiento utilizando modelacion de canal autoregresivo
MX2009007941A (es) Uso de palabras clave en un sistema de comunicacion inalambrica.
TW200737008A (en) Systems and methods for enhancing communication in a wireless communication system
AR057231A1 (es) Puesta en umbral basada en energia promedia de tap,para la estimacion de canales en sistemas de multiples antenas
TW200943778A (en) Antenna array calibration for wireless communication systems

Legal Events

Date Code Title Description
FB Suspension of granting procedure