WO2004084420B1 - Procede et appareil d'emission par antennes multiples - Google Patents

Procede et appareil d'emission par antennes multiples

Info

Publication number
WO2004084420B1
WO2004084420B1 PCT/US2004/007536 US2004007536W WO2004084420B1 WO 2004084420 B1 WO2004084420 B1 WO 2004084420B1 US 2004007536 W US2004007536 W US 2004007536W WO 2004084420 B1 WO2004084420 B1 WO 2004084420B1
Authority
WO
WIPO (PCT)
Prior art keywords
transmitter
subcarriers
matrix
weighting
receiver
Prior art date
Application number
PCT/US2004/007536
Other languages
English (en)
Other versions
WO2004084420A2 (fr
WO2004084420A3 (fr
Filing date
Publication date
Priority claimed from US10/387,727 external-priority patent/US6927728B2/en
Application filed filed Critical
Priority to ES04719800T priority Critical patent/ES2395902T3/es
Priority to JP2006501233A priority patent/JP2006522505A/ja
Priority to EP04719800A priority patent/EP1609211B1/fr
Priority to CN2004800067985A priority patent/CN1813375B/zh
Publication of WO2004084420A2 publication Critical patent/WO2004084420A2/fr
Publication of WO2004084420A3 publication Critical patent/WO2004084420A3/fr
Publication of WO2004084420B1 publication Critical patent/WO2004084420B1/fr

Links

Abstract

L'invention porte sur un procédé et un appareil relatifs à des émissions par antenne multiple dans le cadre d'un système à entrées et sorties multiples (MIMO). Dans l'exécution préférée on renvoie à l'émetteur un nombre réduit de matrices de poids d'émission que l'on applique à un ensemble de sous-porteuses. Chacune des matrices de poids s'appliquant à plus d'une sous-porteuse, on peut largement réduire le nombre des matrices de poids renvoyées à l'émetteur.
PCT/US2004/007536 2003-03-13 2004-03-11 Procede et appareil d'emission par antennes multiples WO2004084420A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES04719800T ES2395902T3 (es) 2003-03-13 2004-03-11 Método y aparato para transmisión con múltiples antenas
JP2006501233A JP2006522505A (ja) 2003-03-13 2004-03-11 マルチ・アンテナ送信のための方法および装置
EP04719800A EP1609211B1 (fr) 2003-03-13 2004-03-11 Procede et appareil d'emission par antennes multiples
CN2004800067985A CN1813375B (zh) 2003-03-13 2004-03-11 多天线传输方法和装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/387,727 US6927728B2 (en) 2003-03-13 2003-03-13 Method and apparatus for multi-antenna transmission
US10/387,727 2003-03-13

Publications (3)

Publication Number Publication Date
WO2004084420A2 WO2004084420A2 (fr) 2004-09-30
WO2004084420A3 WO2004084420A3 (fr) 2005-04-14
WO2004084420B1 true WO2004084420B1 (fr) 2006-03-30

Family

ID=32961953

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/007536 WO2004084420A2 (fr) 2003-03-13 2004-03-11 Procede et appareil d'emission par antennes multiples

Country Status (7)

Country Link
US (1) US6927728B2 (fr)
EP (1) EP1609211B1 (fr)
JP (1) JP2006522505A (fr)
KR (1) KR100863452B1 (fr)
CN (1) CN1813375B (fr)
ES (1) ES2395902T3 (fr)
WO (1) WO2004084420A2 (fr)

Families Citing this family (188)

* 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
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US7058637B2 (en) 2001-05-15 2006-06-06 Metatomix, Inc. Methods and apparatus for enterprise application integration
US6925457B2 (en) 2001-07-27 2005-08-02 Metatomix, Inc. Methods and apparatus for querying a relational data store using schema-less queries
CN100566222C (zh) * 2001-09-28 2009-12-02 富士通株式会社 信道预测设备和方法
GB2382875B (en) * 2001-12-07 2004-03-03 Univ Southampton Electromagnetic surveying for hydrocarbon reservoirs
US10644916B1 (en) 2002-05-14 2020-05-05 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US7058367B1 (en) * 2003-01-31 2006-06-06 At&T Corp. Rate-adaptive methods for communicating over multiple input/multiple output wireless systems
US7391832B2 (en) * 2003-03-17 2008-06-24 Broadcom Corporation System and method for channel bonding in multiple antenna communication systems
US8185075B2 (en) 2003-03-17 2012-05-22 Broadcom Corporation System and method for channel bonding in multiple antenna communication systems
US7983355B2 (en) * 2003-07-09 2011-07-19 Broadcom Corporation System and method for RF signal combining and adaptive bit loading for data rate maximization in multi-antenna communication systems
US7885228B2 (en) * 2003-03-20 2011-02-08 Qualcomm Incorporated Transmission mode selection for data transmission in a multi-channel communication system
US8391322B2 (en) 2003-07-09 2013-03-05 Broadcom Corporation Method and system for single weight (SW) antenna system for spatial multiplexing (SM) MIMO system for WCDMA/HSDPA
JP4546177B2 (ja) 2003-07-28 2010-09-15 パナソニック株式会社 無線通信装置および無線通信方法
US7065144B2 (en) 2003-08-27 2006-06-20 Qualcomm Incorporated Frequency-independent spatial processing for wideband MISO and MIMO systems
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
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
US7570695B2 (en) * 2003-12-18 2009-08-04 Intel Corporation Method and adaptive bit interleaver for wideband systems using adaptive bit loading
JP4435737B2 (ja) * 2003-12-22 2010-03-24 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 送信重みを決定する方法
KR100538775B1 (ko) * 2004-04-09 2005-12-23 전자부품연구원 무선통신 시스템에서의 다양한 간섭신호에 대한 지능형채널 선택 방법 및 장치 및 이를 이용한 수신기
US20050265225A1 (en) * 2004-05-11 2005-12-01 Orion Microelectronics Corporation MIMO system and mode table
US7492749B2 (en) * 2004-05-19 2009-02-17 The Directv Group, Inc. Method and system for providing multi-input-multi-output (MIMO) downlink transmission
US7665063B1 (en) 2004-05-26 2010-02-16 Pegasystems, Inc. Integration of declarative rule-based processing with procedural programming
US8089855B2 (en) * 2004-06-04 2012-01-03 Qualcomm Incorporated Transmission of overhead information for broadcast and multicast services in a wireless communication system
US20050286663A1 (en) * 2004-06-23 2005-12-29 Intel Corporation Compact feedback for closed loop MIMO systems
US7570696B2 (en) * 2004-06-25 2009-08-04 Intel Corporation Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback
US8457152B2 (en) * 2004-07-16 2013-06-04 Qualcomm Incorporated Multiple modulation schemes in single rate layering wireless communication systems
US7443925B2 (en) * 2004-07-20 2008-10-28 Mitsubishi Electric Research Laboratories, Inc. Pilot and data signals for MIMO systems using channel statistics
US7676007B1 (en) * 2004-07-21 2010-03-09 Jihoon Choi System and method for interpolation based transmit beamforming for MIMO-OFDM with partial feedback
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US8385296B2 (en) * 2004-07-22 2013-02-26 Industry Academic Cooperation Foundation Of Kyunghee University Multi-carrier CDMA transmitting device and method using block-based multi-carrier spreading
US11381285B1 (en) 2004-08-02 2022-07-05 Genghiscomm Holdings, LLC Transmit pre-coding
US7336727B2 (en) * 2004-08-19 2008-02-26 Nokia Corporation Generalized m-rank beamformers for MIMO systems using successive quantization
US7362822B2 (en) * 2004-09-08 2008-04-22 Intel Corporation Recursive reduction of channel state feedback
US7539253B2 (en) * 2004-09-10 2009-05-26 Intel Corporation Interpolation in channel state feedback
US7492829B2 (en) * 2004-09-10 2009-02-17 Intel Corporation Closed loop feedback in MIMO systems
US7609780B2 (en) * 2004-09-30 2009-10-27 Intel Corporation Method and apparatus for performing sequential closed loop multiple input multiple output (MIMO)
US7236748B2 (en) 2004-09-30 2007-06-26 Intel Corporation Closed loop feedback in MIMO systems
US9002299B2 (en) * 2004-10-01 2015-04-07 Cisco Technology, Inc. Multiple antenna processing on transmit for wireless local area networks
US7139328B2 (en) * 2004-11-04 2006-11-21 Motorola, Inc. Method and apparatus for closed loop data transmission
JP4746420B2 (ja) * 2004-12-27 2011-08-10 株式会社東芝 無線通信装置及び方法
US7778826B2 (en) 2005-01-13 2010-08-17 Intel Corporation Beamforming codebook generation system and associated methods
JP4464836B2 (ja) * 2005-01-14 2010-05-19 パナソニック株式会社 マルチアンテナ通信装置の通信方法及びマルチアンテナ通信装置
US7542454B2 (en) * 2005-01-21 2009-06-02 Intel Corporation MIMO channel feedback protocols
US7990270B2 (en) * 2005-01-28 2011-08-02 Kirsen Technologies Corporation Inc. Transportation security system and associated methods
US8643503B2 (en) 2005-01-28 2014-02-04 Kirill Mostov Transportation security system and associated methods
US8335704B2 (en) 2005-01-28 2012-12-18 Pegasystems Inc. Methods and apparatus for work management and routing
JP4635642B2 (ja) * 2005-02-25 2011-02-23 ソニー株式会社 無線通信装置及び無線通信方法
US7616704B2 (en) * 2005-03-08 2009-11-10 Intel Corporation Broadband multicarrier transmitter with subchannel frequency diversity for transmitting a plurality of spatial streams
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US7602855B2 (en) * 2005-04-01 2009-10-13 Interdigital Technology Corporation Method and apparatus for singular value decomposition of a channel matrix
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8363577B2 (en) * 2005-05-13 2013-01-29 Qualcomm Incorporated Low complexity beamforming for multiple antenna systems
US9130706B2 (en) 2005-05-26 2015-09-08 Unwired Planet, Llc Method and apparatus for signal quality loss compensation in multiplexing transmission systems
KR101124932B1 (ko) * 2005-05-30 2012-03-28 삼성전자주식회사 어레이 안테나를 이용하는 이동 통신 시스템에서의 데이터송/수신 장치 및 방법
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US8611284B2 (en) 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US8599945B2 (en) 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US20070071147A1 (en) * 2005-06-16 2007-03-29 Hemanth Sampath Pseudo eigen-beamforming with dynamic beam selection
US9179319B2 (en) 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US7715488B2 (en) * 2005-06-30 2010-05-11 Nokia Corporation Apparatus, method and computer program product providing closed loop transmit antenna operation for systems using multiple antennas
EP1912362B1 (fr) * 2005-08-02 2011-04-20 Mitsubishi Electric Corporation Dispositif de communication et systeme de communication radio
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
KR101245403B1 (ko) * 2005-08-12 2013-03-25 뉴저지 인스티튜트 오브 테크놀로지 ＮｘＭ 안테나를 이용한 다중 입출력 시스템에서의 재전송 배열 방법 및 장치
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
CN101273599B (zh) * 2005-09-29 2011-07-20 美商内数位科技公司 基于mimo波束成形的单载波频分多址系统
CN101288244B (zh) * 2005-10-17 2014-03-12 三星电子株式会社 在多用户多天线通信系统中发送/接收数据的方法
DE602006021682D1 (de) * 2005-10-17 2011-06-16 Samsung Electronics Co Ltd Verfahren und Vorrichtung zum Senden/Empfangen von Daten in einem Mehrbenutzer, Mehrantennen Kommunikationssystem
US7602837B2 (en) * 2005-10-20 2009-10-13 Freescale Semiconductor, Inc. Beamforming for non-collaborative, space division multiple access systems
US8385433B2 (en) * 2005-10-27 2013-02-26 Qualcomm Incorporated Linear precoding for spatially correlated channels
US9225416B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US9210651B2 (en) * 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US20070165738A1 (en) * 2005-10-27 2007-07-19 Barriac Gwendolyn D Method and apparatus for pre-coding for a mimo system
US8477684B2 (en) * 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8594207B2 (en) 2005-10-31 2013-11-26 Motorola Mobility Llc Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system
KR100996023B1 (ko) * 2005-10-31 2010-11-22 삼성전자주식회사 다중 안테나 통신 시스템에서 데이터 송수신 장치 및 방법
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US7602745B2 (en) * 2005-12-05 2009-10-13 Intel Corporation Multiple input, multiple output wireless communication system, associated methods and data structures
US7620423B2 (en) 2005-12-07 2009-11-17 Cisco Technology, Inc. Method and system for creating beamformed channels in a multi-input multi-output network
CN101379753B (zh) 2006-02-03 2012-06-27 Lg电子株式会社 无线通信系统中基于反馈信息发送至少一个子分组的方法
US7714780B2 (en) * 2006-03-10 2010-05-11 Broadcom Corporation Beamforming RF circuit and applications thereof
US20070211813A1 (en) * 2006-03-10 2007-09-13 Shilpa Talwar MIMO precoding in the presence of co-channel interference
KR100691627B1 (ko) * 2006-03-24 2007-03-12 삼성전기주식회사 다중 포트 기반의 ｍｉｍｏ 안테나 수신기
US8924335B1 (en) 2006-03-30 2014-12-30 Pegasystems Inc. Rule-based user interface conformance methods
JP4775288B2 (ja) 2006-04-27 2011-09-21 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法
JP4924107B2 (ja) 2006-04-27 2012-04-25 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
JP4924106B2 (ja) 2006-04-27 2012-04-25 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
JP4356756B2 (ja) 2006-04-27 2009-11-04 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
US7499510B2 (en) * 2006-05-20 2009-03-03 Cisco Technology, Inc. Method for estimating a weighting vector for an adaptive phased array antenna system
JP4836186B2 (ja) * 2006-05-31 2011-12-14 三洋電機株式会社 送信装置
KR20070116562A (ko) * 2006-06-05 2007-12-10 제이에스알 가부시끼가이샤 액정 배향제 및 횡전계 방식 액정 표시 소자
KR20080004701A (ko) * 2006-07-06 2008-01-10 삼성전자주식회사 무선 통신시스템에서 채널 피드백 장치 및 방법
US7450673B2 (en) * 2006-08-10 2008-11-11 Cisco Technology, Inc. System and method for improving the robustness of spatial division multiple access via nulling
WO2008021392A2 (fr) * 2006-08-17 2008-02-21 Interdigital Technology Corporation Procédé et appareil pour réduire un rapport de puissance crête-moyenne dans un système entrée multiple sortie multiple
US7961810B2 (en) 2006-09-07 2011-06-14 Texas Instruments Incorporated Antenna grouping and group-based enhancements for MIMO systems
JPWO2008032358A1 (ja) 2006-09-11 2010-01-21 富士通株式会社 無線通信装置および無線通信方法
CN1968041B (zh) * 2006-09-19 2012-01-18 北京邮电大学 一种增强实际mimo系统接收机性能的方法
US20100246697A1 (en) * 2006-09-28 2010-09-30 Nokia Corporation Apparatus, Method and Computer Program Product Providing Feedback for Closed-Loop Wideband MIMO-OFDM System
US7747225B2 (en) * 2006-10-03 2010-06-29 Motorola, Inc. Mobile assisted downlink beamforming with antenna weight feedback
US8823581B2 (en) * 2006-12-06 2014-09-02 Radical Development Holding S.A. System and method for detecting dangerous objects and substances
US8032184B2 (en) * 2007-02-22 2011-10-04 Cisco Technology, Inc. Method for generating downlink beamforming weighting vectors
US8250525B2 (en) 2007-03-02 2012-08-21 Pegasystems Inc. Proactive performance management for multi-user enterprise software systems
US8831116B2 (en) * 2007-03-20 2014-09-09 Motorola Mobility Llc Method and apparatus for providing channel quality and precoding metric feedback in an orthogonal frequency division multiplexing communication system
US8107544B2 (en) * 2007-05-16 2012-01-31 Motorola Mobility, Inc. Method and apparatus for feedback in closed loop transmitting
KR101455981B1 (ko) * 2007-08-14 2014-11-03 엘지전자 주식회사 하향링크 상황에 따른 적응적 채널 품질 지시자 생성 방법및 이를 위한 사용자 기기
WO2009055728A1 (fr) 2007-10-24 2009-04-30 Kirsen Technologies Corporation Système et procédé de commande d'espace et de télésurveillance
US8130847B2 (en) * 2007-11-09 2012-03-06 Motorola Mobility, Inc. Closed-loop transmission feedback in wireless communication systems
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
JP5109707B2 (ja) * 2008-02-19 2012-12-26 コニカミノルタビジネステクノロジーズ株式会社 定着装置及び画像形成装置
US8626080B2 (en) * 2008-03-11 2014-01-07 Intel Corporation Bidirectional iterative beam forming
JP4901790B2 (ja) 2008-03-14 2012-03-21 京セラ株式会社 無線装置
US8913551B2 (en) 2008-06-24 2014-12-16 Mitsubishi Electric Research Laboratories, Inc. Antenna selection with frequency-hopped sounding reference signals
JP4605266B2 (ja) * 2008-07-23 2011-01-05 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法、エンコード装置及びエンコード方法、並びにコンピュータ・プログラム
US10481878B2 (en) 2008-10-09 2019-11-19 Objectstore, Inc. User interface apparatus and methods
US8351544B2 (en) 2008-12-15 2013-01-08 Motorola Mobility Llc Method and apparatus for codebook-based feedback in a closed loop wireless communication system
US8638871B2 (en) * 2008-12-22 2014-01-28 Motorola Mobility Llc System and method for combination multiple input, multiple output (MIMO) and beamforming
US8301177B2 (en) 2009-03-03 2012-10-30 Intel Corporation Efficient paging operation for femtocell deployment
US8843435B1 (en) 2009-03-12 2014-09-23 Pegasystems Inc. Techniques for dynamic data processing
US8468492B1 (en) 2009-03-30 2013-06-18 Pegasystems, Inc. System and method for creation and modification of software applications
JP4832548B2 (ja) * 2009-04-28 2011-12-07 パナソニック株式会社 送信装置及び送信方法
US8005060B2 (en) * 2009-06-23 2011-08-23 Cisco Technology, Inc. Beamforming techniques to improve ranging signal detection
BR112012000427B1 (pt) * 2009-07-06 2021-06-01 Apple Inc Método, dispositivo e estação base para formação de feixe utilizando livros de códigos de base e diferenciais
US8315204B2 (en) 2009-07-06 2012-11-20 Intel Corporation Beamforming using base and differential codebooks
US7965234B2 (en) * 2009-08-06 2011-06-21 Samsung Electro-Mechanics Co., Ltd. Beamforming apparatus and method for multi-antenna system
KR101079549B1 (ko) * 2009-08-06 2011-11-02 고려대학교 산학협력단 적응형 빔포밍을 이용한 다중 안테나 시스템
US20110164691A1 (en) * 2010-01-06 2011-07-07 Motorola, Inc. Closed-loop transmission feedback in wireless communication systems
US8442142B2 (en) * 2010-02-19 2013-05-14 Broadcom Corporation Method and system for beamforming signal transmission under a per-antenna power constraint
US8615047B2 (en) * 2010-07-30 2013-12-24 Nec Laboratories America, Inc. Beamforming systems and methods for link layer multicasting
US8587495B2 (en) 2010-12-07 2013-11-19 Motorola Solutions, Inc. Multiple-input multiple-output (MIMO) antenna system
US8880487B1 (en) 2011-02-18 2014-11-04 Pegasystems Inc. Systems and methods for distributed rules processing
CN102780655B (zh) * 2011-05-10 2017-04-12 中兴通讯股份有限公司 协方差矩阵的确定方法、频偏估计的方法和系统
KR101244354B1 (ko) * 2011-07-21 2013-03-18 고려대학교 산학협력단 다중 안테나 시스템에서의 빔-포밍 장치 및 방법
US8467363B2 (en) 2011-08-17 2013-06-18 CBF Networks, Inc. Intelligent backhaul radio and antenna system
US8422540B1 (en) 2012-06-21 2013-04-16 CBF Networks, Inc. Intelligent backhaul radio with zero division duplexing
US9195936B1 (en) 2011-12-30 2015-11-24 Pegasystems Inc. System and method for updating or modifying an application without manual coding
US20130170452A1 (en) * 2012-01-04 2013-07-04 Futurewei Technologies, Inc. Low Complexity Beamforming Scheme
JP5488627B2 (ja) * 2012-02-23 2014-05-14 富士通株式会社 Ｍｉｍｏ−ｏｆｄｍ受信装置およびｍｉｍｏ−ｏｆｄｍ通信システム
JP5985853B2 (ja) * 2012-03-28 2016-09-06 京セラ株式会社 通信システム、基地局、移動局及び通信制御方法
JP6023673B2 (ja) * 2012-12-18 2016-11-09 日本電信電話株式会社 無線通信システム、及びウエイト算出方法
KR102184073B1 (ko) * 2013-05-14 2020-11-27 엘지전자 주식회사 주파수 도약을 기반으로 데이터를 전송하는 방법 및 장치
US10469396B2 (en) 2014-10-10 2019-11-05 Pegasystems, Inc. Event processing with enhanced throughput
DE102016213226A1 (de) * 2016-02-12 2017-08-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Bestimmung einer Position eines Senders
US10698599B2 (en) 2016-06-03 2020-06-30 Pegasystems, Inc. Connecting graphical shapes using gestures
US10698647B2 (en) 2016-07-11 2020-06-30 Pegasystems Inc. Selective sharing for collaborative application usage
CN107888323B (zh) * 2016-09-29 2020-01-17 电信科学技术研究院 一种信道状态信息的传输方法和设备
US10637705B1 (en) 2017-05-25 2020-04-28 Genghiscomm Holdings, LLC Peak-to-average-power reduction for OFDM multiple access
US10243773B1 (en) 2017-06-30 2019-03-26 Genghiscomm Holdings, LLC Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM
US10673674B2 (en) * 2017-07-12 2020-06-02 Qualcomm Incorporated Techniques and apparatuses for multiplexing schemes for millimeter wave downlink single carrier waveforms
US10756790B2 (en) * 2018-06-17 2020-08-25 Genghiscomm Holdings, LLC Distributed radio system
US11048488B2 (en) 2018-08-14 2021-06-29 Pegasystems, Inc. Software code optimizer and method
US11917604B2 (en) 2019-01-25 2024-02-27 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
WO2020242898A1 (fr) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Accès multiple non orthogonal
US11567945B1 (en) 2020-08-27 2023-01-31 Pegasystems Inc. Customized digital content generation systems and methods

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3718337B2 (ja) 1998-01-08 2005-11-24 株式会社東芝 適応可変指向性アンテナ
US5982327A (en) * 1998-01-12 1999-11-09 Motorola, Inc. Adaptive array method, device, base station and subscriber unit
JP4480847B2 (ja) * 1999-04-19 2010-06-16 アイメック マルチユーザ伝送のための方法及び装置
CN1193563C (zh) 2000-02-22 2005-03-16 皇家菲利浦电子有限公司 多载波接收机和含此类接收机的发射系统
US6362781B1 (en) 2000-06-30 2002-03-26 Motorola, Inc. Method and device for adaptive antenna combining weights
EP1821480B1 (fr) * 2000-08-24 2009-10-21 Sony Deutschland Gmbh Système de communication pour la réception et la transmission de signaux OFDM dans un système de communications sans fil
JP3576099B2 (ja) * 2000-12-22 2004-10-13 株式会社東芝 スマートアンテナを用いた受信装置、スマートアンテナを用いた受信方法及びビーム形成回路
JP2002261670A (ja) * 2001-02-27 2002-09-13 Yrp Mobile Telecommunications Key Tech Res Lab Co Ltd 無線送信装置および無線受信装置
JP3579363B2 (ja) * 2001-03-23 2004-10-20 三洋電機株式会社 無線受信装置および無線受信方法
JP4298932B2 (ja) * 2001-03-27 2009-07-22 富士通株式会社 送信ダイバーシティ通信装置
US6859503B2 (en) * 2001-04-07 2005-02-22 Motorola, Inc. Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel
US7027523B2 (en) * 2001-06-22 2006-04-11 Qualcomm Incorporated Method and apparatus for transmitting data in a time division duplexed (TDD) communication system
DE60144162D1 (de) * 2001-07-11 2011-04-14 Sony Deutschland Gmbh Verfahren zur Berechnung eines Gewichtsvektors für eine Gruppenantenne
GB2386476B (en) * 2002-03-14 2004-05-12 Toshiba Res Europ Ltd Antenna signal processing systems
US6940917B2 (en) * 2002-08-27 2005-09-06 Qualcomm, Incorporated Beam-steering and beam-forming for wideband MIMO/MISO systems

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