DE60210777D1 - Kanalprädiktion bei der sende-diversity mit geschlossener schleife - Google Patents

Kanalprädiktion bei der sende-diversity mit geschlossener schleife

Info

Publication number
DE60210777D1
DE60210777D1 DE60210777T DE60210777T DE60210777D1 DE 60210777 D1 DE60210777 D1 DE 60210777D1 DE 60210777 T DE60210777 T DE 60210777T DE 60210777 T DE60210777 T DE 60210777T DE 60210777 D1 DE60210777 D1 DE 60210777D1
Authority
DE
Germany
Prior art keywords
channel
base station
closed loop
prediction
transceiver
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60210777T
Other languages
English (en)
Other versions
DE60210777T2 (de
Inventor
Itzhak Bergel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intel Corp
Original Assignee
Intel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intel Corp filed Critical Intel Corp
Application granted granted Critical
Publication of DE60210777D1 publication Critical patent/DE60210777D1/de
Publication of DE60210777T2 publication Critical patent/DE60210777T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/005Control of transmission; Equalising
    • 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
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0634Antenna weights or vector/matrix coefficients
    • 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
    • H04L25/0202Channel estimation
    • H04L25/0204Channel estimation of multiple channels
    • 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
    • H04L25/0202Channel estimation
    • H04L25/0224Channel estimation using sounding signals
DE60210777T 2001-07-19 2002-07-12 Kanalprädiktion bei der sende-diversity mit geschlossener schleife Expired - Lifetime DE60210777T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/908,963 US7174178B2 (en) 2001-07-19 2001-07-19 Deriving a more accurate estimate from prediction data in closed loop transmit diversity modes
US908963 2001-07-19
PCT/US2002/022389 WO2003009493A1 (en) 2001-07-19 2002-07-12 Channel prediction in closed loop transmit diversity

Publications (2)

Publication Number Publication Date
DE60210777D1 true DE60210777D1 (de) 2006-05-24
DE60210777T2 DE60210777T2 (de) 2007-04-19

Family

ID=25426439

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60210777T Expired - Lifetime DE60210777T2 (de) 2001-07-19 2002-07-12 Kanalprädiktion bei der sende-diversity mit geschlossener schleife

Country Status (10)

Country Link
US (1) US7174178B2 (de)
EP (1) EP1410528B1 (de)
JP (1) JP3790723B2 (de)
KR (1) KR100654282B1 (de)
CN (1) CN1181634C (de)
AT (1) ATE323977T1 (de)
DE (1) DE60210777T2 (de)
SG (1) SG125901A1 (de)
TW (1) TW574793B (de)
WO (1) WO2003009493A1 (de)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2820574B1 (fr) * 2001-02-08 2005-08-05 Wavecom Sa Procede d'extraction d'un motif de symboles de reference servant a estimer la fonction de transfert d'un canal de transmission, signal, dispositif et procedes correspondants
DE60212761T2 (de) * 2001-05-29 2006-11-16 Kabushiki Kaisha Toshiba Gerät zur drahtlosen Kommunikation
KR100615888B1 (ko) * 2001-08-25 2006-08-25 삼성전자주식회사 안테나 어레이를 포함하는 이동 통신 장치 및 방법
US7142830B2 (en) * 2001-09-19 2006-11-28 Nokia Corporation Adaptive transceiver system
JP3997890B2 (ja) 2001-11-13 2007-10-24 松下電器産業株式会社 送信方法及び送信装置
EP1453223A1 (de) * 2001-11-30 2004-09-01 Fujitsu Limited Kommunikationseinrichtung mit übertragungs-diversity
FR2835984B1 (fr) * 2002-02-11 2006-06-23 Evolium Sas Procede pour ameliorer les performances d'un systeme de radiocommunications mobiles
US7162261B1 (en) * 2002-02-27 2007-01-09 Sprint Communications Company L.P. Method and device for identifying antennae to transmit wireless signals
US20040204103A1 (en) * 2002-03-18 2004-10-14 Rouphael Antoine J. Adaptive beamforming in a wireless communication system
CN1269330C (zh) * 2002-03-22 2006-08-09 华为技术有限公司 一种自适应加权空时发射分集方法及其系统
EP1496628B1 (de) * 2002-04-03 2013-06-05 NEC Corporation Mobilkommunikationssystem, mobilstation, basisstation, kommunikationsweg-qualitätsschätzverfahren dafür
EA200401525A1 (ru) 2002-05-17 2006-06-30 Йейл Юниверсити Способы лечения гепатита (варианты )
KR100640470B1 (ko) * 2002-06-29 2006-10-30 삼성전자주식회사 패킷 서비스 통신 시스템에서 전송 안테나 다이버시티방식을 사용하여 데이터를 전송 장치 및 방법
EP1557057A4 (de) * 2002-11-01 2006-12-13 Interdigital Tech Corp Verfahren zur kanalqualitätsvorhersage für drahtlose kommunikationssysteme
US20040132494A1 (en) * 2003-01-03 2004-07-08 Olav Tirkkonen Communication method
US7813440B2 (en) 2003-01-31 2010-10-12 Ntt Docomo, Inc. Multiple-output multiple-input (MIMO) communication system, MIMO receiver and MIMO receiving method
US7155177B2 (en) * 2003-02-10 2006-12-26 Qualcomm Incorporated Weight prediction for closed-loop mode transmit diversity
FR2851384B1 (fr) * 2003-02-17 2009-12-18 Wavecom Procede de transmission de donnees radio, signal, systeme et dispositifs correspondant.
GB2399987B (en) * 2003-03-27 2006-10-11 Ubinetics Ltd Wireless communications system
CN1549480A (zh) * 2003-05-06 2004-11-24 �ʼҷ����ֵ��ӹɷ����޹�˾ 具有改进的信道估计能力的cdma通信系统
US8559406B2 (en) * 2003-06-03 2013-10-15 Qualcomm Incorporated Method and apparatus for communications of data in a communication system
KR100950640B1 (ko) * 2003-06-13 2010-04-01 삼성전자주식회사 폐순환 전송 다이버시티 시스템에서의 안테나 가중치 결정방법 및 장치
DE10337445B3 (de) * 2003-08-14 2005-06-30 Siemens Ag Verfahren zum Betrieb eines Funkkommunikationssystems, Empfangsstation sowie Sendestation für ein Funkkommunkationssystem
FI20031441A0 (fi) * 2003-10-03 2003-10-03 Nokia Corp Palautetietoa lähetyksen säätämiseksi tietoliikennejärjestelmässä
US20050135460A1 (en) * 2003-12-22 2005-06-23 Hidenori Akita Method and apparatus for estimating a SIR of a pilot channel in a MC-CDMA system
US20050141598A1 (en) * 2003-12-30 2005-06-30 Hidenori Akita Method and apparatus for estimating a SIR of a pilot channel in a MC-CDMA system
US7352829B2 (en) * 2004-01-12 2008-04-01 Infineon Technologies Ag Data-aided channel estimation
US7376192B2 (en) * 2004-07-22 2008-05-20 Telefonaktiebolaget L M Ericsson (Publ) Delta modulation for channel feedback in transmit diversity wireless communication systems
US7907910B2 (en) * 2004-08-02 2011-03-15 Intel Corporation Method and apparatus to vary power level of training signal
US7933628B2 (en) * 2004-08-18 2011-04-26 Ruckus Wireless, Inc. Transmission and reception parameter control
KR100915161B1 (ko) * 2004-09-17 2009-09-03 가부시키가이샤 엔.티.티.도코모 이동 통신 방법, 이동국 및 기지국
US7522555B2 (en) * 2005-01-21 2009-04-21 Intel Corporation Techniques to manage channel prediction
KR100723459B1 (ko) * 2005-07-29 2007-05-31 한국과학기술원 무선 이동 통신 시스템에서의 귀환 신호를 이용한 하향무선 채널 환경 예측 장치 및 방법
CN1960556B (zh) * 2005-09-20 2012-01-11 开曼群岛威睿电通股份有限公司 迭代信道预测
US7778599B2 (en) * 2006-05-01 2010-08-17 Intel Corporation Aggregated channel feedback
US20080008188A1 (en) * 2006-05-25 2008-01-10 Proximetry, Inc. Systems and methods for wireless resource management with quality of service (qos) management
US8116391B2 (en) 2006-05-26 2012-02-14 Wi-Lan Inc. Quantization of channel state information in multiple antenna systems
EP1871023B1 (de) * 2006-06-23 2008-12-17 Mitsubishi Electric Information Technology Centre Europe B.V. Verfahren und Vorrichtung zur Bestimmung von Kanalzustandsinformationen welche von einer ersten zu einer zweiten Telekommunikationsvorrichtung zu übertragen sind
US8670725B2 (en) 2006-08-18 2014-03-11 Ruckus Wireless, Inc. Closed-loop automatic channel selection
JP4415026B2 (ja) * 2007-03-09 2010-02-17 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける基地局アンテナ放射パターン制御方法及びそのシステム
US8750811B2 (en) * 2007-03-14 2014-06-10 Google Inc. Method, apparatus and system for phase difference adjustment in transmit diversity
US8009778B2 (en) * 2007-09-07 2011-08-30 Tr Technologies Inc. Quantized channel state information prediction in multiple antenna systems
US8036282B2 (en) 2007-09-07 2011-10-11 Wi-Lan Inc. Multi-tiered quantization of channel state information in multiple antenna systems
KR100930717B1 (ko) * 2007-09-13 2009-12-09 한국전자통신연구원 무선 통신 시스템의 채널 추정 및 피드백 방법
US8234546B2 (en) 2008-04-21 2012-07-31 Wi-Lan, Inc. Mitigation of transmission errors of quantized channel state information feedback in multi antenna systems
CN101594321B (zh) * 2008-05-27 2012-07-04 电信科学技术研究院 一种信道预测的方法和装置
GB0820535D0 (en) * 2008-11-10 2008-12-17 Icera Inc Communication system and method
CN101765161B (zh) * 2009-12-29 2015-08-12 中兴通讯股份有限公司 一种链路自适应方法及装置
US8559990B2 (en) * 2010-02-05 2013-10-15 Qualcomm Incorporated Apparatus and method for enabling uplink beamforming transit diversity channel estimation
JP5144709B2 (ja) * 2010-04-21 2013-02-13 株式会社日立国際電気 移動局装置
TWI397276B (zh) * 2010-06-03 2013-05-21 Univ Nat Chiao Tung 無線通訊傳送及接收系統及其方法
CN102447502B (zh) 2010-09-30 2015-03-11 日电(中国)有限公司 用于获取进行波束成形所需的信道状态信息的方法和设备
US8737506B1 (en) * 2010-12-29 2014-05-27 Sprint Communications Company L.P. Determination of transmit diversity transmission delays
US8644265B2 (en) * 2011-09-30 2014-02-04 Xiao-an Wang Wideband analog channel information feedback
CN103139830B (zh) * 2011-12-05 2018-05-11 中兴通讯股份有限公司 一种进行在线dpct相位寻优的装置和方法
US9756112B2 (en) 2015-02-11 2017-09-05 At&T Intellectual Property I, L.P. Method and system for managing service quality according to network status predictions
CN110809860B (zh) * 2017-06-27 2022-09-02 瑞典爱立信有限公司 确定用于无线电收发机装置的复权向量
US10693575B2 (en) 2018-08-31 2020-06-23 At&T Intellectual Property I, L.P. System and method for throughput prediction for cellular networks
US10868726B2 (en) 2018-12-07 2020-12-15 At&T Intellectual Property I, L.P. Apparatus and method for selecting a bandwidth prediction source
US11490149B2 (en) 2019-03-15 2022-11-01 At&T Intellectual Property I, L.P. Cap-based client-network interaction for improved streaming experience

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8406734D0 (en) * 1984-03-15 1984-04-18 Tate & Lyle Plc Sugar process
EP0807989B1 (de) 1996-05-17 2001-06-27 Motorola Ltd Verfahren und Vorrichtung zur Gewichtung eines Uebertragungsweges
JP3441638B2 (ja) * 1997-12-18 2003-09-02 株式会社エヌ・ティ・ティ・ドコモ チャネル推定値を求める装置および方法
KR19990053963A (ko) * 1997-12-24 1999-07-15 정태기 최적 기지국 자동 탐색형 중계기용 스마트 안테나 및 복사 패턴생성 방법
JP4203138B2 (ja) * 1998-01-20 2008-12-24 株式会社ミクニ 計量式電磁ポンプ
KR20000021097A (ko) 1998-09-25 2000-04-15 김영환 씨디엠에이 이동통신 시스템에서의 페이징 채널의 전력제어방법
US6690652B1 (en) * 1998-10-26 2004-02-10 International Business Machines Corporation Adaptive power control in wideband CDMA cellular systems (WCDMA) and methods of operation
CN1196277C (zh) * 1999-05-19 2005-04-06 诺基亚网络有限公司 发射分集方法和系统
AU5567300A (en) 1999-06-23 2001-01-09 Japan As Represented By President Of Hokkaido University Radio device
US6901062B2 (en) * 1999-12-01 2005-05-31 Kathrein-Werke Kg Adaptive antenna array wireless data access point
JP2001168777A (ja) 1999-12-06 2001-06-22 Matsushita Electric Ind Co Ltd 通信端末装置及び無線通信方法
KR100663559B1 (ko) 1999-12-31 2007-01-02 삼성전자주식회사 부호분할 다중접속 통신시스템의 동기형 복조 장치 및 방법
JP3478242B2 (ja) 2000-05-18 2003-12-15 日本電気株式会社 Cdma移動通信システムの移動機
US6748024B2 (en) * 2001-03-28 2004-06-08 Nokia Corporation Non-zero complex weighted space-time code for multiple antenna transmission
US6785250B2 (en) * 2001-07-09 2004-08-31 Qualcomm Incorporated Method and apparatus for time-sharing channelization code in a CDMA communication system

Also Published As

Publication number Publication date
DE60210777T2 (de) 2007-04-19
US7174178B2 (en) 2007-02-06
KR100654282B1 (ko) 2006-12-05
ATE323977T1 (de) 2006-05-15
US20030017835A1 (en) 2003-01-23
EP1410528A1 (de) 2004-04-21
WO2003009493A1 (en) 2003-01-30
SG125901A1 (en) 2006-10-30
JP3790723B2 (ja) 2006-06-28
CN1399436A (zh) 2003-02-26
KR20030009140A (ko) 2003-01-29
JP2003143065A (ja) 2003-05-16
CN1181634C (zh) 2004-12-22
TW574793B (en) 2004-02-01
EP1410528B1 (de) 2006-04-19

Similar Documents

Publication Publication Date Title
DE60210777D1 (de) Kanalprädiktion bei der sende-diversity mit geschlossener schleife
HK1088448A1 (en) Using beamforming and closed loop transmit diversity in a multi-beam antenna system
EP3394990B1 (de) Betrieb eines drahtlosen kommunikationssystems
WO1998018271A3 (en) Wireless communication network using time-varying vector channel equalization for adaptive spatial equalization
ATE357087T1 (de) Funkkommunikationssystem
DE60330092D1 (de) Drahtlose Kommunikation mit Sende- und Empfangsdiversität
BR0209459A (pt) Método e sistema para utilização de reuso de polarização em comunicações sem fio
CA2605065A1 (en) Channel quality reporting for adaptive sectorization
EP2070207A4 (de) Verstärker mit dualer mpfänger- oder senderantennenkonfiguration mit adaption für erhöhte isolation
EP1353452A3 (de) Mobiles Kommunicationsgerät mit mehreren Sende- und Empfangsantennen und mobiles Kommunicationsverfahren dafür
WO2006014661A3 (en) Multi-connection, non-simultaneous frequency diversity in radio communication systems
GB2442360B (en) communications apparatus
ATE321381T1 (de) System und verfahren zum senden und empfangen von informationen in einer mehrwegumgebung mit diversität
WO2002082689A3 (en) Feedback method for controlling a multiple-input, multiple-output communications channel
DE60229230D1 (de) Funkkommunikationssystem
DE602004032327D1 (de) Empfänger mit mehreren antennen
TW200709593A (en) RF transceiver having adaptive modulation
KR100913660B1 (ko) Gps 가능 무선 통신을 제공하는 장치 및 방법
US20090275283A1 (en) Use of intra-body communication
RU2009133915A (ru) Система и способ переключения хэндовера между беспроводными системами связи
WO2007067284A3 (en) Method and system for creating beamformed channels in a multi-input multi-output network
TW200737596A (en) A wireless communications device with improved antenna adaptivity
BR9906705A (pt) Processo e dispositivo de comunicação de canal para um sistema de comunicação móvel usando diversidade de antena de transmissão, processo para selecionar, em uma estação móvel, uma antena de transmissão em uma estação base em um sistema de comunicação móvel usando diversidade de antena de transmissão, e, dispositivo de estação base
EP0951153A4 (de) Mobile kommunikationsanordnung
CY1107522T1 (el) Eνα συστημα ραδιοεπικοινωνιας, μεθοδος λειτουργιας ενος συστηματος επικοινωνιας και ενας κινητος σταθμος

Legal Events

Date Code Title Description
8364 No opposition during term of opposition