DE60210777D1 - Kanalprädiktion bei der sende-diversity mit geschlossener schleife - Google Patents
Kanalprädiktion bei der sende-diversity mit geschlossener schleifeInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- 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
- H04B7/0613—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 simultaneous transmission
- H04B7/0615—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 simultaneous transmission of weighted versions of same signal
- H04B7/0619—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 simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
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)
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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 |
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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 |
-
2001
- 2001-07-19 US US09/908,963 patent/US7174178B2/en not_active Expired - Fee Related
-
2002
- 2002-05-30 TW TW91111541A patent/TW574793B/zh not_active IP Right Cessation
- 2002-06-05 SG SG200203330A patent/SG125901A1/en unknown
- 2002-07-04 KR KR1020020038608A patent/KR100654282B1/ko not_active IP Right Cessation
- 2002-07-12 DE DE60210777T patent/DE60210777T2/de not_active Expired - Lifetime
- 2002-07-12 EP EP02752338A patent/EP1410528B1/de not_active Expired - Lifetime
- 2002-07-12 AT AT02752338T patent/ATE323977T1/de not_active IP Right Cessation
- 2002-07-12 WO PCT/US2002/022389 patent/WO2003009493A1/en not_active Application Discontinuation
- 2002-07-19 JP JP2002211679A patent/JP3790723B2/ja not_active Expired - Fee Related
- 2002-07-19 CN CNB021265259A patent/CN1181634C/zh not_active Expired - Fee Related
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |