[go: up one dir, main page]

HK1074949A1 - Time-domain transmit and receive processing with channel eigen-mode decomposition for mimo systems - Google Patents

Time-domain transmit and receive processing with channel eigen-mode decomposition for mimo systems

Info

Publication number
HK1074949A1
HK1074949A1 HK05107219A HK05107219A HK1074949A1 HK 1074949 A1 HK1074949 A1 HK 1074949A1 HK 05107219 A HK05107219 A HK 05107219A HK 05107219 A HK05107219 A HK 05107219A HK 1074949 A1 HK1074949 A1 HK 1074949A1
Authority
HK
Hong Kong
Prior art keywords
time
mimo systems
receive processing
mode decomposition
domain transmit
Prior art date
Application number
HK05107219A
Other languages
English (en)
Inventor
Ketchum John
Wallace Mark
Howard Steven
Walton Jay
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 HK1074949A1 publication Critical patent/HK1074949A1/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0417Feedback systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03343Arrangements at the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0426Power distribution
    • H04B7/0434Power distribution using multiple eigenmodes
    • H04B7/0443Power distribution using multiple eigenmodes utilizing "waterfilling" technique
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028Formatting
    • H04L1/0029Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L2025/03433Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439Fixed structures
    • H04L2025/03445Time domain
    • H04L2025/03471Tapped delay lines
    • H04L2025/03484Tapped delay lines time-recursive
    • H04L2025/0349Tapped delay lines time-recursive as a feedback filter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L2025/03592Adaptation methods
    • H04L2025/03598Algorithms
    • H04L2025/03605Block algorithms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)
HK05107219A 2001-12-07 2005-08-19 Time-domain transmit and receive processing with channel eigen-mode decomposition for mimo systems HK1074949A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/017,308 US6760388B2 (en) 2001-12-07 2001-12-07 Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems
PCT/US2002/038671 WO2003050968A2 (fr) 2001-12-07 2002-12-03 Traitement de reception et de transmission de domaines temporels avec decomposition de modes de type eigen a canaux pour systemes mimo

Publications (1)

Publication Number Publication Date
HK1074949A1 true HK1074949A1 (en) 2005-11-25

Family

ID=21781875

Family Applications (1)

Application Number Title Priority Date Filing Date
HK05107219A HK1074949A1 (en) 2001-12-07 2005-08-19 Time-domain transmit and receive processing with channel eigen-mode decomposition for mimo systems

Country Status (10)

Country Link
US (3) US6760388B2 (fr)
EP (1) EP1451964B1 (fr)
JP (3) JP2005512447A (fr)
KR (1) KR100929992B1 (fr)
CN (2) CN101217340B (fr)
AU (1) AU2002357783A1 (fr)
BR (1) BR0214691A (fr)
HK (1) HK1074949A1 (fr)
TW (1) TWI258962B (fr)
WO (1) WO2003050968A2 (fr)

Families Citing this family (242)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7952511B1 (en) 1999-04-07 2011-05-31 Geer James L Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns
US6865237B1 (en) 2000-02-22 2005-03-08 Nokia Mobile Phones Limited Method and system for digital signal transmission
FI20002845L (fi) * 2000-12-22 2002-06-23 Nokia Corp Digitaalisen signaalin lähettäminen
US7702293B2 (en) * 2001-11-02 2010-04-20 Nokia Corporation Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces
US7430245B2 (en) * 2004-07-02 2008-09-30 Qualcomm Incorporated Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems
US6760388B2 (en) * 2001-12-07 2004-07-06 Qualcomm Incorporated Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems
US7133461B2 (en) * 2001-12-14 2006-11-07 Motorola, Inc. Stream transmission method and device
US7020110B2 (en) * 2002-01-08 2006-03-28 Qualcomm Incorporated Resource allocation for MIMO-OFDM communication systems
US7020482B2 (en) * 2002-01-23 2006-03-28 Qualcomm Incorporated Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems
EP1481496B1 (fr) * 2002-01-29 2008-06-11 Nokia Corporation Procede de transfert de donnees dans un systeme radio
US20030161258A1 (en) * 2002-02-22 2003-08-28 Jianzhong Zhang Apparatus, and associated method, for a multiple-input, multiple-output communications system
US6862271B2 (en) * 2002-02-26 2005-03-01 Qualcomm Incorporated Multiple-input, multiple-output (MIMO) systems with multiple transmission modes
AU2003219882A1 (en) * 2002-03-01 2003-09-16 Cognio, Inc. System and method for joint maximal ratio combining
US6785520B2 (en) 2002-03-01 2004-08-31 Cognio, Inc. System and method for antenna diversity using equal power joint maximal ratio combining
US6873651B2 (en) * 2002-03-01 2005-03-29 Cognio, Inc. System and method for joint maximal ratio combining using time-domain signal processing
US6862456B2 (en) * 2002-03-01 2005-03-01 Cognio, Inc. Systems and methods for improving range for multicast wireless communication
US6687492B1 (en) * 2002-03-01 2004-02-03 Cognio, Inc. System and method for antenna diversity using joint maximal ratio combining
US6871049B2 (en) * 2002-03-21 2005-03-22 Cognio, Inc. Improving the efficiency of power amplifiers in devices using transmit beamforming
KR100464014B1 (ko) * 2002-03-21 2004-12-30 엘지전자 주식회사 다중 입출력 이동 통신 시스템에서의 폐루프 신호 처리 방법
US7593357B2 (en) * 2002-03-28 2009-09-22 Interdigital Technology Corporation Transmit processing using receiver functions
US7224704B2 (en) * 2002-04-01 2007-05-29 Texas Instruments Incorporated Wireless network scheduling data frames including physical layer configuration
US7315582B2 (en) * 2002-04-30 2008-01-01 Koninklijke Philips Electronics N.V. Backward compatible DVB-S standard transmission system
US6996373B2 (en) * 2002-06-18 2006-02-07 Nokia Corporation Base station
US7436757B1 (en) * 2002-06-21 2008-10-14 Nortel Networks Limited Scattered pilot and filtering for channel estimation
JP4316500B2 (ja) * 2002-07-19 2009-08-19 インターデイジタル テクノロジー コーポレーション 受信ダイバーシティを用いるブロック送信のためのグループ単位連続干渉キャンセル
CA2513710C (fr) * 2002-07-30 2012-04-03 Ipr Licensing Inc. Systeme et procede de communication radio a entrees et sorties multiples (mimo)
US6940917B2 (en) * 2002-08-27 2005-09-06 Qualcomm, Incorporated Beam-steering and beam-forming for wideband MIMO/MISO systems
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7260153B2 (en) * 2002-09-09 2007-08-21 Mimopro Ltd. Multi input multi output wireless communication method and apparatus providing extended range and extended rate across imperfectly estimated channels
JP4381749B2 (ja) * 2002-09-19 2009-12-09 パナソニック株式会社 無線通信装置及び無線通信方法
US6873606B2 (en) * 2002-10-16 2005-03-29 Qualcomm, Incorporated Rate adaptive transmission scheme for MIMO systems
US7355958B2 (en) * 2002-10-22 2008-04-08 Syracuse University Blind OFDM channel estimation and identification using receiver diversity
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
DE10254384B4 (de) 2002-11-17 2005-11-17 Siemens Ag Bidirektionales Signalverarbeitungsverfahren für ein MIMO-System mit einer rangadaptiven Anpassung der Datenübertragungsrate
JP4350491B2 (ja) * 2002-12-05 2009-10-21 パナソニック株式会社 無線通信システム、無線通信方法、及び無線通信装置
JP4256158B2 (ja) * 2002-12-26 2009-04-22 パナソニック株式会社 無線通信装置及び無線通信方法
US7577165B1 (en) * 2003-02-05 2009-08-18 Barrett Terence W Method and system of orthogonal signal spectrum overlay (OSSO) for communications
EP1447927A1 (fr) * 2003-02-17 2004-08-18 France Telecom Appareil et procédé de traitement du signal
JP4287670B2 (ja) * 2003-02-18 2009-07-01 パナソニック株式会社 通信装置及び通信方法
JP2004266586A (ja) 2003-03-03 2004-09-24 Hitachi Ltd 移動通信システムのデータ送受信方法
TW200522623A (en) * 2003-03-03 2005-07-01 Interdigital Tech Corp Reduced complexity sliding window based equalizer
US7042967B2 (en) * 2003-03-03 2006-05-09 Interdigital Technology Corporation Reduced complexity sliding window based equalizer
US7099678B2 (en) * 2003-04-10 2006-08-29 Ipr Licensing, Inc. System and method for transmit weight computation for vector beamforming radio communication
KR20050119143A (ko) * 2003-04-21 2005-12-20 미쓰비시덴키 가부시키가이샤 무선통신장치, 송신장치, 수신장치 및 무선통신시스템
US7079870B2 (en) 2003-06-09 2006-07-18 Ipr Licensing, Inc. Compensation techniques for group delay effects in transmit beamforming radio communication
EP2584859B1 (fr) * 2003-06-18 2018-10-24 Nippon Telegraph And Telephone Corporation Procédé de communication par paquets sans fil et appareil de communication par paquets sans fil
WO2005008931A1 (fr) * 2003-07-16 2005-01-27 Nec Corporation Emetteur, recepteur, et systeme de radiocommunications
US20050036575A1 (en) * 2003-08-15 2005-02-17 Nokia Corporation Method and apparatus providing low complexity equalization and interference suppression for SAIC GSM/EDGE receiver
US7127013B2 (en) * 2003-08-18 2006-10-24 Airgo Networks, Inc. Spacetime equalization in a wireless receiver
US7065144B2 (en) * 2003-08-27 2006-06-20 Qualcomm Incorporated Frequency-independent spatial processing for wideband MISO and MIMO systems
US7724838B2 (en) * 2003-09-25 2010-05-25 Qualcomm Incorporated Hierarchical coding with multiple antennas in a wireless communication system
US7742546B2 (en) * 2003-10-08 2010-06-22 Qualcomm Incorporated Receiver spatial processing for eigenmode transmission in a MIMO system
US8472473B2 (en) 2003-10-15 2013-06-25 Qualcomm Incorporated Wireless LAN protocol stack
US8462817B2 (en) 2003-10-15 2013-06-11 Qualcomm Incorporated Method, apparatus, and system for multiplexing protocol data units
US8483105B2 (en) 2003-10-15 2013-07-09 Qualcomm Incorporated High speed media access control
US9226308B2 (en) 2003-10-15 2015-12-29 Qualcomm Incorporated Method, apparatus, and system for medium access control
US8842657B2 (en) 2003-10-15 2014-09-23 Qualcomm Incorporated High speed media access control with legacy system interoperability
US8284752B2 (en) 2003-10-15 2012-10-09 Qualcomm Incorporated Method, apparatus, and system for medium access control
US8233462B2 (en) * 2003-10-15 2012-07-31 Qualcomm Incorporated High speed media access control and direct link protocol
JP2005123788A (ja) * 2003-10-15 2005-05-12 Sharp Corp 無線通信装置
US7616698B2 (en) 2003-11-04 2009-11-10 Atheros Communications, Inc. Multiple-input multiple output system and method
US7680461B2 (en) * 2003-11-05 2010-03-16 Sony Corporation Wireless communications system, wireless communications method, and wireless communications apparatus
JP4337507B2 (ja) 2003-11-05 2009-09-30 ソニー株式会社 無線通信システム、並びに無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
US7298805B2 (en) * 2003-11-21 2007-11-20 Qualcomm Incorporated Multi-antenna transmission for spatial division multiple access
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
CN1890895B (zh) * 2003-12-05 2010-04-28 三星电子株式会社 闭环多路输入多路输出移动通信系统中通过选择的特征向量发送数据的装置和方法
US7302009B2 (en) 2003-12-17 2007-11-27 Qualcomm Incorporated Broadcast transmission with spatial spreading in a multi-antenna communication system
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
ATE448607T1 (de) * 2003-12-19 2009-11-15 Ericsson Telefon Ab L M Verfahren und vorrichtung in einem auf mimo basierenden kommunikationssystem
JP3910956B2 (ja) * 2003-12-26 2007-04-25 株式会社東芝 Ofdm無線通信システムのための伝搬路推定器及びこれを用いた受信装置
CA2490969C (fr) * 2004-01-02 2014-06-17 Her Majesty In Right Of Canada As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Methode de mise a jour de la decomposition en valeurs singulieres d'une matrice de transfert
US7336746B2 (en) * 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
US7194042B2 (en) * 2004-01-13 2007-03-20 Qualcomm Incorporated Data transmission with spatial spreading in a mimo communication system
US8903440B2 (en) 2004-01-29 2014-12-02 Qualcomm Incorporated Distributed hierarchical scheduling in an ad hoc network
US7818018B2 (en) * 2004-01-29 2010-10-19 Qualcomm Incorporated Distributed hierarchical scheduling in an AD hoc network
US7843959B2 (en) * 2004-01-30 2010-11-30 Telefonaktiebolaget Lm Ericsson Prioritising data elements of a data stream
US7570619B2 (en) * 2004-02-13 2009-08-04 Broadcom Corporation Long training sequence method and device for wireless communications
US20050180312A1 (en) * 2004-02-18 2005-08-18 Walton J. R. Transmit diversity and spatial spreading for an OFDM-based 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
US7400710B2 (en) * 2004-02-26 2008-07-15 Conexant, Inc. MIMO dynamic PSD allocation for DSL networks
US8315271B2 (en) * 2004-03-26 2012-11-20 Qualcomm Incorporated Method and apparatus for an ad-hoc wireless communications system
US20050213686A1 (en) * 2004-03-26 2005-09-29 Texas Instruments Incorporated Reduced complexity transmit spatial waterpouring technique for multiple-input, multiple-output communication systems
US11394436B2 (en) 2004-04-02 2022-07-19 Rearden, Llc System and method for distributed antenna wireless communications
US10985811B2 (en) 2004-04-02 2021-04-20 Rearden, Llc System and method for distributed antenna wireless communications
US10886979B2 (en) * 2004-04-02 2021-01-05 Rearden, Llc System and method for link adaptation in DIDO multicarrier systems
US8542763B2 (en) * 2004-04-02 2013-09-24 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US9819403B2 (en) * 2004-04-02 2017-11-14 Rearden, Llc System and method for managing handoff of a client between different distributed-input-distributed-output (DIDO) networks based on detected velocity of the client
US7633994B2 (en) 2004-07-30 2009-12-15 Rearden, LLC. System and method for distributed input-distributed output wireless communications
US7711030B2 (en) * 2004-07-30 2010-05-04 Rearden, Llc System and method for spatial-multiplexed tropospheric scatter communications
US10425134B2 (en) 2004-04-02 2019-09-24 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US8160121B2 (en) * 2007-08-20 2012-04-17 Rearden, Llc System and method for distributed input-distributed output wireless communications
US9826537B2 (en) * 2004-04-02 2017-11-21 Rearden, Llc System and method for managing inter-cluster handoff of clients which traverse multiple DIDO clusters
US8654815B1 (en) 2004-04-02 2014-02-18 Rearden, Llc System and method for distributed antenna wireless communications
US11451275B2 (en) 2004-04-02 2022-09-20 Rearden, Llc System and method for distributed antenna wireless communications
US7599420B2 (en) * 2004-07-30 2009-10-06 Rearden, Llc System and method for distributed input distributed output wireless communications
US7418053B2 (en) 2004-07-30 2008-08-26 Rearden, Llc System and method for distributed input-distributed output wireless communications
US8571086B2 (en) * 2004-04-02 2013-10-29 Rearden, Llc System and method for DIDO precoding interpolation in multicarrier systems
US7885354B2 (en) * 2004-04-02 2011-02-08 Rearden, Llc System and method for enhancing near vertical incidence skywave (“NVIS”) communication using space-time coding
US11309943B2 (en) 2004-04-02 2022-04-19 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US10749582B2 (en) 2004-04-02 2020-08-18 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US9312929B2 (en) 2004-04-02 2016-04-12 Rearden, Llc System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS)
US10277290B2 (en) 2004-04-02 2019-04-30 Rearden, Llc Systems and methods to exploit areas of coherence in wireless systems
US7636381B2 (en) * 2004-07-30 2009-12-22 Rearden, Llc System and method for distributed input-distributed output wireless communications
US10187133B2 (en) * 2004-04-02 2019-01-22 Rearden, Llc System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network
US10200094B2 (en) * 2004-04-02 2019-02-05 Rearden, Llc Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems
US8170081B2 (en) * 2004-04-02 2012-05-01 Rearden, LLC. System and method for adjusting DIDO interference cancellation based on signal strength measurements
US20050238111A1 (en) * 2004-04-09 2005-10-27 Wallace Mark S Spatial processing with steering matrices for pseudo-random transmit steering in a multi-antenna communication system
US7417974B2 (en) * 2004-04-14 2008-08-26 Broadcom Corporation Transmitting high rate data within a MIMO WLAN
US8923785B2 (en) 2004-05-07 2014-12-30 Qualcomm Incorporated Continuous beamforming for a MIMO-OFDM system
US7564814B2 (en) 2004-05-07 2009-07-21 Qualcomm, Incorporated Transmission mode and rate selection for a wireless communication system
US8285226B2 (en) * 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
KR20050109863A (ko) * 2004-05-17 2005-11-22 삼성전자주식회사 다중 사용자 mimo/ofdma 시스템을 위한 부채널및 비트 할당 기법
US8401018B2 (en) 2004-06-02 2013-03-19 Qualcomm Incorporated Method and apparatus for scheduling in a wireless network
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
US7649952B1 (en) 2004-07-01 2010-01-19 Regents Of The University Of Minnesota Low complexity soft demapping
JP4409395B2 (ja) * 2004-07-13 2010-02-03 富士通株式会社 伝搬路推定方法及び推定装置
US7978649B2 (en) 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
US8457152B2 (en) 2004-07-16 2013-06-04 Qualcomm Incorporated Multiple modulation schemes in single rate layering wireless communication systems
US7706324B2 (en) 2004-07-19 2010-04-27 Qualcomm Incorporated On-demand reverse-link pilot transmission
US9685997B2 (en) 2007-08-20 2017-06-20 Rearden, Llc Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems
MY143899A (en) * 2004-08-12 2011-07-29 Interdigital Tech Corp Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system
US7336727B2 (en) * 2004-08-19 2008-02-26 Nokia Corporation Generalized m-rank beamformers for MIMO systems using successive quantization
US7894548B2 (en) 2004-09-03 2011-02-22 Qualcomm Incorporated Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system
US7978778B2 (en) 2004-09-03 2011-07-12 Qualcomm, Incorporated Receiver structures for spatial spreading with space-time or space-frequency transmit diversity
CN100377541C (zh) * 2004-09-17 2008-03-26 北京邮电大学 在分布式终端组件之间进行连接控制和安全验证的方法
US7711035B2 (en) * 2004-09-17 2010-05-04 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for suppressing communication signal interference
US8031117B2 (en) * 2004-09-23 2011-10-04 Interdigital Technology Corporation Blind signal separation using polarized antenna elements
US7627052B2 (en) * 2004-09-23 2009-12-01 Interdigital Technology Corporation Pattern diversity to support a MIMO receiver and associated methods
CN100388645C (zh) * 2004-09-28 2008-05-14 上海贝尔阿尔卡特股份有限公司 一种改善v-blast检测性能的预编码方法和装置
US8040968B2 (en) 2004-09-30 2011-10-18 Intel Corporation High rate, high diversity transmission on multiple transmit antennas
US7882412B2 (en) 2004-10-05 2011-02-01 Sanjiv Nanda Enhanced block acknowledgement
JP4065276B2 (ja) * 2004-11-12 2008-03-19 三洋電機株式会社 送信方法およびそれを利用した無線装置
KR100696208B1 (ko) * 2004-12-08 2007-03-20 한국전자통신연구원 다중 안테나 송수신 시스템의 제어 방법, 송신기 및 수신기
WO2006062356A1 (fr) * 2004-12-08 2006-06-15 Electronics And Telecommunications Research Institute Emetteur -recepteur et procede de commande d'un systeme a plusieurs entrees plusieurs sorties (mimo)
US7525988B2 (en) * 2005-01-17 2009-04-28 Broadcom Corporation Method and system for rate selection algorithm to maximize throughput in closed loop multiple input multiple output (MIMO) wireless local area network (WLAN) system
US8451709B2 (en) * 2005-01-17 2013-05-28 Sharp Kabushiki Kaisha Radio communication device
WO2006098011A1 (fr) * 2005-03-16 2006-09-21 Fujitsu Limited Dispositif de communication radio dans un systeme a entrees multiples et procede d'estimation et de separation de voies
CN1835415A (zh) * 2005-03-16 2006-09-20 松下电器产业株式会社 无线通信系统中使用的低复杂度比特和功率分配方法和装置
US7688979B2 (en) * 2005-03-21 2010-03-30 Interdigital Technology Corporation MIMO air interface utilizing dirty paper coding
WO2006112032A1 (fr) * 2005-04-14 2006-10-26 Matsushita Electric Industrial Co., Ltd. Appareil de reception sans fil, appareil de transmission sans fil, systeme de communication sans fil, procede de reception sans fil, procede de transmission sans fil et procede de communication sans fil
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
EP1884093B1 (fr) * 2005-05-13 2018-03-07 Qualcomm Incorporated Transmission de pilotes à la demande sur une liaison inverse
JP4666150B2 (ja) * 2005-05-31 2011-04-06 日本電気株式会社 Mimo受信装置、受信方法、および無線通信システム
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
CN1885841B (zh) * 2005-06-20 2010-12-15 北京三星通信技术研究有限公司 空时分组码功率分配系统及分配方法
CN100377515C (zh) * 2005-07-14 2008-03-26 北京邮电大学 用于mimo-ofdm系统的自适应传输方法
WO2007015143A2 (fr) * 2005-08-01 2007-02-08 Nokia Corporation Procede, appareil et programme informatique d'annulation d'interferences lineaires au sens large pour systemes a porteuses multiples
US7623605B2 (en) * 2005-08-15 2009-11-24 Research In Motion Limited Interference canceling matched filter (ICMF) and related methods
CA2516525A1 (fr) * 2005-08-15 2007-02-15 Research In Motion Limited Filtre adapte d'annulation du brouillage (icmf)
CA2516910A1 (fr) * 2005-08-23 2007-02-23 Research In Motion Limited Techniques de demodulation conjointe eliminant le brouillage
US7639763B2 (en) * 2005-08-23 2009-12-29 Research In Motion Limited Wireless communications device including a joint demodulation filter for co-channel interference reduction and related methods
US7643590B2 (en) * 2005-08-23 2010-01-05 Research In Motion Limited Joint demodulation filter for co-channel interference reduction and related methods
WO2007024324A2 (fr) * 2005-08-25 2007-03-01 Beceem Communications Inc. Affectation d'une sous-porteuse dans un systeme d'acces mrof presentant des informations inexactes de l'etat du canal au niveau de l'emetteur
EP2194659A1 (fr) * 2005-09-02 2010-06-09 Mitsubishi Electric R&D Centre Europe B.V. Procédé pour contrôler le transfer de signaux d'un prémier dispositif de communication à destination d'un deuxième dispositif de comunication.
US8600336B2 (en) 2005-09-12 2013-12-03 Qualcomm Incorporated Scheduling with reverse direction grant in wireless communication systems
KR100936202B1 (ko) * 2005-09-22 2010-01-11 인터디지탈 테크날러지 코포레이션 Mimo 수신기를 지원하기 위한 패턴 다이버시티 및 관련방법들
CN100349388C (zh) * 2005-10-20 2007-11-14 上海交通大学 多输入多输出系统的最小发射功率自适应调制方法
US7778607B2 (en) * 2005-10-31 2010-08-17 The Mitre Corporation Echo MIMO: a method for optimal multiple input multiple output channel estimation and matched cooperative beamforming
CN100372277C (zh) * 2006-02-20 2008-02-27 东南大学 基于空域预白化合并的空时分离软输入软输出检测方法
US7649955B2 (en) * 2006-03-24 2010-01-19 Intel Corporation MIMO receiver and method for beamforming using CORDIC operations
US8543070B2 (en) 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
US8494084B1 (en) 2006-05-02 2013-07-23 Marvell International Ltd. Reuse of a matrix equalizer for the purpose of transmit beamforming in a wireless MIMO communication system
US7787554B1 (en) 2006-05-02 2010-08-31 Marvell International Ltd. Beamforming to a subset of receive antennas in a wireless MIMO communication system
US8340597B1 (en) 2006-05-02 2012-12-25 Marvell International Ltd. Calibration correction for implicit beamforming in a wireless MIMO communication system
US8290089B2 (en) * 2006-05-22 2012-10-16 Qualcomm Incorporated Derivation and feedback of transmit steering matrix
US8483145B2 (en) * 2006-06-16 2013-07-09 Telefonaktiebolaget Lm Ericsson (Publ) Method for channel quality measures in a multiple antenna system
US8787841B2 (en) 2006-06-27 2014-07-22 Qualcomm Incorporated Method and system for providing beamforming feedback in wireless communication systems
KR100992418B1 (ko) * 2006-07-12 2010-11-05 삼성전자주식회사 다중 안테나 시스템의 송신단에서 간섭을 제거하기 위한장치 및 방법
US20080123660A1 (en) * 2006-08-09 2008-05-29 Interdigital Technology Corporation Method and apparatus for providing differentiated quality of service for packets in a particular flow
CN101127747B (zh) * 2006-08-14 2010-09-08 大唐移动通信设备有限公司 一种时分双工复用系统中实现频域调度的方法及系统
US7751495B1 (en) 2006-09-06 2010-07-06 Marvell International Ltd. Equal power output spatial spreading matrix for use in a wireless MIMO communication system
US7729439B2 (en) * 2006-09-18 2010-06-01 Marvell World Trade Ltd. Calibration correction for implicit beamforming in a wireless MIMO communication system
US7684526B2 (en) 2006-09-21 2010-03-23 Broadcom Corporation Frequency domain equalizer for dual antenna radio
KR100826529B1 (ko) * 2006-09-29 2008-04-30 한국전자통신연구원 다수의 송수신 안테나를 갖는 직교주파수 분할 다중 접속시스템에서 효율적인 신호 수신 장치 및 방법
US7966043B2 (en) * 2006-12-09 2011-06-21 Cisco Technology, Inc. Method for creating multiple-input-multiple-output channel with beamforming using signals transmitted from single transmit antenna
US7961826B2 (en) * 2006-12-14 2011-06-14 Texas Instruments Incorporated Parameterized sphere detector and methods of using the same
CN101578779A (zh) * 2007-01-19 2009-11-11 松下电器产业株式会社 多天线发送装置、多天线接收装置、多天线发送方法、多天线接收方法、终端装置以及基站装置
US8223872B1 (en) 2007-04-04 2012-07-17 Marvell International Ltd. Reuse of a matrix equalizer for the purpose of transmit beamforming in a wireless MIMO communication system
US20080260051A1 (en) * 2007-04-23 2008-10-23 Federico Boccardi Method and apparatus for transmitting information simultaneously to multiple destinations over shared wireless resources
US8199841B1 (en) 2007-04-26 2012-06-12 Marvell International Ltd. Channel tracking in a wireless multiple-input multiple-output (MIMO) communication system
US8379745B1 (en) 2007-07-06 2013-02-19 Marvell International Ltd. Forward channel variation detection in a wireless communication system
US8213368B2 (en) * 2007-07-13 2012-07-03 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive compression of channel feedback based on second order channel statistics
EP2592766B1 (fr) 2007-07-18 2020-04-22 Marvell World Trade Ltd. Point d'accès avec transmission en liaison descendante simultanée de données indépendantes pour de multiples stations clients
EP2183862B1 (fr) 2007-07-18 2018-04-18 Marvell World Trade Ltd. Réseau sans fil facilitant la transmission simultanée en liaison montante de données indépendantes à partir de multiples stations clients
US8411805B1 (en) * 2007-08-14 2013-04-02 Marvell International Ltd. Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems
US8989155B2 (en) 2007-08-20 2015-03-24 Rearden, Llc Systems and methods for wireless backhaul in distributed-input distributed-output wireless systems
US20090122854A1 (en) * 2007-11-14 2009-05-14 The Hong Kong University Of Science And Technology Frequency domain equalization with transmit precoding for high speed data transmission
US8229017B1 (en) 2007-12-13 2012-07-24 Marvell International Ltd. Transmit beamforming utilizing channel estimation matrix decomposition feedback in a wireless MIMO communication system
US8135092B2 (en) * 2008-01-31 2012-03-13 Nokia Corporation MIMO-OFDM wireless communication system
US8995590B2 (en) * 2008-03-28 2015-03-31 Qualcomm Incorporated Hardware engine to demod SIMO, MIMO, and SDMA signals
US8982889B2 (en) 2008-07-18 2015-03-17 Marvell World Trade Ltd. Preamble designs for sub-1GHz frequency bands
US8588318B2 (en) * 2008-09-01 2013-11-19 Samsung Electronics Co., Ltd. Method for demodulating signal and terminal and base station for executing the method
KR20100070751A (ko) * 2008-12-18 2010-06-28 한국전자통신연구원 무선 통신 시스템의 채널 추정 방법 및 그 장치
US8055199B2 (en) * 2008-12-31 2011-11-08 Qualcomm Incorporated Methods and systems for co-channel interference cancellation in wireless networks
US8837524B2 (en) 2011-08-29 2014-09-16 Marvell World Trade Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
US9077594B2 (en) 2009-07-23 2015-07-07 Marvell International Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
US8483265B2 (en) * 2009-09-04 2013-07-09 Hitachi, Ltd. Generalized decision feedback equalizer precoder with input covariance matrix calculation for multi-user multiple-input multiple-output wireless transmission systems
KR101587566B1 (ko) * 2009-12-30 2016-02-02 삼성전자주식회사 다중 사용자 다중 안테나 시스템에서의 유니터리 프리코딩 장치 및 방법
US8750089B2 (en) * 2010-01-05 2014-06-10 Broadcom Corporation Method and system for iterative discrete fourier transform (DFT) based channel estimation using minimum mean square error (MMSE) techniques
FR2966308A1 (fr) * 2010-10-15 2012-04-20 France Telecom Procedes d'emission et de reception d'un signal multiporteuse, emetteur, recepteur, signal de retour et programmes d'ordinateur correspondants
US9154969B1 (en) 2011-09-29 2015-10-06 Marvell International Ltd. Wireless device calibration for implicit transmit
US9801564B2 (en) * 2012-02-29 2017-10-31 General Electric Company System and method for determining physiological parameters based on electrical impedance measurements
US8874103B2 (en) 2012-05-11 2014-10-28 Intel Corporation Determining proximity of user equipment for device-to-device communication
US9083479B2 (en) * 2012-05-11 2015-07-14 Intel Corporation Signaling for downlink coordinated multipoint in a wireless communication system
US9048893B1 (en) * 2012-09-18 2015-06-02 Marvell International Ltd. Determining channel information using decision feedback equalization
US11190947B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for concurrent spectrum usage within actively used spectrum
US11050468B2 (en) 2014-04-16 2021-06-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
US10194346B2 (en) 2012-11-26 2019-01-29 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US11189917B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for distributing radioheads
US9923657B2 (en) 2013-03-12 2018-03-20 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US9973246B2 (en) 2013-03-12 2018-05-15 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US10164698B2 (en) 2013-03-12 2018-12-25 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US10488535B2 (en) 2013-03-12 2019-11-26 Rearden, Llc Apparatus and method for capturing still images and video using diffraction coded imaging techniques
RU2767777C2 (ru) 2013-03-15 2022-03-21 Риарден, Ллк Системы и способы радиочастотной калибровки с использованием принципа взаимности каналов в беспроводной связи с распределенным входом - распределенным выходом
DE102013209708A1 (de) * 2013-05-24 2014-11-27 Robert Bosch Gmbh Verfahren zum Betreiben eines MIMO Radars
US9515710B2 (en) * 2013-10-16 2016-12-06 Empire Technology Development Llc Signal sequence estimation
US11290162B2 (en) 2014-04-16 2022-03-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
WO2016024750A1 (fr) * 2014-08-12 2016-02-18 엘지전자(주) Procédé et dispositif pour une transmission multiutilisateur en liaison descendante dans un système de communication sans fil
JP6507047B2 (ja) * 2015-02-10 2019-04-24 日本放送協会 送信装置、受信装置、及び半導体チップ
CN107438985B (zh) * 2015-04-02 2020-11-10 瑞典爱立信有限公司 处理快于奈奎斯特的信令接收信号
GB2566748B (en) * 2017-09-26 2022-08-17 Focal Point Positioning Ltd A method and system for calibrating a system parameter
JP6806800B2 (ja) * 2016-06-03 2021-01-06 オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd. データ伝送方法及び装置
KR101876130B1 (ko) * 2017-06-22 2018-07-06 이화여자대학교 산학협력단 특이값 분해를 이용한 저복잡 네트워크 코딩에 기초하는 네트워크 인코딩 장치 및 방법, 그리고 네트워크 디코딩 장치 및 방법
WO2019051093A1 (fr) * 2017-09-06 2019-03-14 Cohere Technologies Réduction de treillis en modulation temporelle, fréquentielle et spatiale orthogonale
US10727911B2 (en) * 2018-08-20 2020-07-28 Nokia Solutions And Networks Oy Beamforming in MIMO radio networks
US10826731B2 (en) * 2018-09-28 2020-11-03 Huawei Technologies Co., Ltd. Efficient implementation of noise whitening post-compensation for narrowband-filtered signals
US10833900B2 (en) * 2018-12-17 2020-11-10 Lockheed Martin Corporation Joint estimation of communication channel effects in communication receivers
EP4097577A4 (fr) 2020-01-29 2024-02-21 Iyengar, Prashanth Systèmes et procédés d'analyse, d'optimisation ou de visualisation de ressources
CN113779744B (zh) * 2020-06-10 2023-07-18 英业达科技有限公司 决定连续时间线性均衡器设定值之方法
TWI723900B (zh) * 2020-06-16 2021-04-01 英業達股份有限公司 決定連續時間線性等化器設定值之方法
CN114666800A (zh) * 2022-04-13 2022-06-24 Oppo广东移动通信有限公司 信号解调方法、装置、基带芯片、终端设备及存储介质
CN117014261B (zh) * 2023-10-07 2024-02-23 之江实验室 一种双极化信道估计实现方法和装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6101399A (en) 1995-02-22 2000-08-08 The Board Of Trustees Of The Leland Stanford Jr. University Adaptive beam forming for transmitter operation in a wireless communication system
KR100229094B1 (ko) * 1996-06-28 1999-11-01 최승원 수신신호에 대한 자기상관행렬의 최대고유치에 대응하는 고유벡터를 이용한 배열 안테나의 신호 처리 방법
DE69725995T2 (de) 1996-08-29 2004-11-11 Cisco Technology, Inc., San Jose Raumzeitliche signalverarbeitung für übertragungssysteme
WO1998018271A2 (fr) 1996-10-18 1998-04-30 Watkins Johnson Company Reseau de telecommunications sans fil utilisant une correction de voie par vecteur variable dans le temps pour equilibrage spatial adaptatif
US6870882B1 (en) * 1999-10-08 2005-03-22 At&T Corp. Finite-length equalization over multi-input multi-output channels
US6975666B2 (en) * 1999-12-23 2005-12-13 Institut National De La Recherche Scientifique Interference suppression in CDMA systems
US6888809B1 (en) * 2000-01-13 2005-05-03 Lucent Technologies Inc. Space-time processing for multiple-input, multiple-output, wireless systems
US20010033622A1 (en) * 2000-03-14 2001-10-25 Joengren George Robust utilization of feedback information in space-time coding
US6473467B1 (en) * 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
US7068628B2 (en) * 2000-05-22 2006-06-27 At&T Corp. MIMO OFDM system
US6718184B1 (en) 2000-09-28 2004-04-06 Lucent Technologies Inc. Method and system for adaptive signal processing for an antenna array
WO2002098051A1 (fr) * 2001-05-25 2002-12-05 Regents Of The University Of Minnesota Transmissions codees spatio-temporelles dans un reseau de communication sans fil
US6956907B2 (en) 2001-10-15 2005-10-18 Qualcomm, Incorporated Method and apparatus for determining power allocation in a MIMO communication system
US6760388B2 (en) 2001-12-07 2004-07-06 Qualcomm Incorporated Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems

Also Published As

Publication number Publication date
CN101217340B (zh) 2012-09-26
EP1451964B1 (fr) 2018-08-29
US6760388B2 (en) 2004-07-06
KR20040061023A (ko) 2004-07-06
US20080317158A1 (en) 2008-12-25
JP2009189045A (ja) 2009-08-20
AU2002357783A1 (en) 2003-06-23
US20040234004A1 (en) 2004-11-25
US8199842B2 (en) 2012-06-12
WO2003050968A2 (fr) 2003-06-19
JP2005512447A (ja) 2005-04-28
WO2003050968A3 (fr) 2003-10-16
TW200301644A (en) 2003-07-01
TWI258962B (en) 2006-07-21
CN101217340A (zh) 2008-07-09
CN100364256C (zh) 2008-01-23
JP2010119134A (ja) 2010-05-27
US7116725B2 (en) 2006-10-03
BR0214691A (pt) 2004-12-28
EP1451964A2 (fr) 2004-09-01
CN1618194A (zh) 2005-05-18
KR100929992B1 (ko) 2009-12-07
JP5855333B2 (ja) 2016-02-09
JP5855329B2 (ja) 2016-02-09
US20030108117A1 (en) 2003-06-12

Similar Documents

Publication Publication Date Title
HK1074949A1 (en) Time-domain transmit and receive processing with channel eigen-mode decomposition for mimo systems
IL167979A0 (en) Channel estimation and spatial processing for tdd mimo systems
TWI372528B (en) Multiple-input multiple-output system and method
HK1083283A1 (en) Coded mimo systems with selective channel inversion applied per eigenmode
IL165979A0 (en) Diversity transmission modes for mimo ofdm communication systems
EP1557962A4 (fr) Dispositif de reception en diversite et procede correspondant
PL367325A1 (en) Large conductance calcium-activated k channel opener
GB2382497B (en) Voice and text transmission system
HK1146635A1 (en) Techniques for channel access and transmit queue selection
HK1082129A1 (en) Transmission diversity systems
EP1422856A4 (fr) Appareil d'emission, procede de commande d'emission, appareil de reception et procede de commande de reception
AU2002360503A1 (en) Frequency-domain mimo processing method and system
TW507579U (en) Device for walk-training with rapid adjustment
MXPA02007535A (es) DISPOSITIVO PARA RECIBIR Y/O EMITIR SEnALES CON DIVERSIDAD DE IRRADIACION.
EP1221793A3 (fr) Estimation de canal et décisions de données pour la réception multiporteuse
HK1079927A1 (en) Channel estimation for systems with transmission diversity
GB2416095B (en) Multi-antenna system and antenna unit
EP1552325A4 (fr) Systeme de diagraphie de sondage a multiples emetteurs et recepteurs
EP1401130A4 (fr) Appareil de transmission, procede de transmission, appareil de reception, procede de reception et appareil de transmission/reception
EP1542373A4 (fr) Dispositif de radiocommunication et systeme de radiocommunication utilisant un tel dispositif
GB0302590D0 (en) Communications systems and methods
HK1057821A1 (en) Grip for coaxial connector and coaxial connector fitting with the same
EP1560347B8 (fr) Egaliseur linéaire par blocs simplifié avec diversité d'emission par blocs spatio-temporels
AU2002308773A1 (en) Time interval based channel estimation with transmit diversity
AU2002213776A1 (en) Transmitter diversity method and transmitter diversity device

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20111203