ATE408950T1 - Verfahren zur kanalschätzung in gegenwart von sendestrahlformung - Google Patents
Verfahren zur kanalschätzung in gegenwart von sendestrahlformungInfo
- Publication number
- ATE408950T1 ATE408950T1 AT03748443T AT03748443T ATE408950T1 AT E408950 T1 ATE408950 T1 AT E408950T1 AT 03748443 T AT03748443 T AT 03748443T AT 03748443 T AT03748443 T AT 03748443T AT E408950 T1 ATE408950 T1 AT E408950T1
- Authority
- AT
- Austria
- Prior art keywords
- channel
- channels
- transmit beam
- propagation
- dpch
- Prior art date
Links
Classifications
-
- 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
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Noise Elimination (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Radar Systems Or Details Thereof (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02292709 | 2002-10-30 | ||
EP03290294 | 2003-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE408950T1 true ATE408950T1 (de) | 2008-10-15 |
Family
ID=32232210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT03748443T ATE408950T1 (de) | 2002-10-30 | 2003-10-10 | Verfahren zur kanalschätzung in gegenwart von sendestrahlformung |
Country Status (8)
Country | Link |
---|---|
US (1) | US8005159B2 (de) |
EP (1) | EP1559251B1 (de) |
JP (1) | JP4440211B2 (de) |
CN (1) | CN1708966B (de) |
AT (1) | ATE408950T1 (de) |
AU (1) | AU2003267748A1 (de) |
DE (1) | DE60323662D1 (de) |
WO (1) | WO2004040869A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6970722B1 (en) * | 2002-08-22 | 2005-11-29 | Cisco Technology, Inc. | Array beamforming with wide nulls |
KR100571138B1 (ko) * | 2004-01-15 | 2006-04-13 | 삼성전자주식회사 | 파일럿 신호를 이용한 빔 형성 방법, 이를 수행하기 위한장치 및 시스템 |
US7359470B2 (en) * | 2004-09-10 | 2008-04-15 | Mitsubishi Electric Research Laboratories, Inc | Minimizing feedback rate for channel state information in MIMO systems |
US8654899B2 (en) * | 2004-10-12 | 2014-02-18 | The Governors Of The University Of Alberta | Pilot symbol assisted modulation signal processing systems and methods |
EP1882309B1 (de) * | 2005-05-10 | 2016-11-09 | Qualcomm Incorporated | Synchronisation einer basisstation über eine benutzervorrichtung mit mehreren kommunikationsmodi |
US7599714B2 (en) * | 2005-09-30 | 2009-10-06 | Alcatel-Lucent Usa Inc. | Increasing the range of access point cells for a given throughput in a downlink of a wireless local area network |
CN100352178C (zh) * | 2005-11-30 | 2007-11-28 | 中兴通讯股份有限公司 | 一种提高用户设备信道估计性能的方法 |
WO2007119207A2 (en) * | 2006-04-13 | 2007-10-25 | Nxp B.V. | Channel estimation using common and dedicated pilots |
JP5068809B2 (ja) * | 2006-04-18 | 2012-11-07 | インターデイジタル テクノロジー コーポレーション | 無線通信を保護するための方法およびシステム |
US8009777B2 (en) * | 2007-06-15 | 2011-08-30 | Icera, Inc. | Processing data in a digital communications system |
US8477874B2 (en) * | 2007-12-31 | 2013-07-02 | Mobilicom Ltd. | Method, device and system of wireless communication |
KR100973013B1 (ko) * | 2008-12-22 | 2010-07-30 | 삼성전기주식회사 | Ofdm 시스템의 샘플링 주파수 옵셋 추정 장치 및 그 방법 |
EP2517499B1 (de) | 2009-12-23 | 2019-06-19 | InterDigital Patent Holdings, Inc. | Durchführung von messungen in der drahtlosen kommunikation mit mehreren trägern |
CN102307165B (zh) * | 2011-08-29 | 2015-04-22 | 北京邮电大学 | 一种信道参数估计方法和系统 |
JPWO2013129146A1 (ja) * | 2012-03-02 | 2015-07-30 | 日本電気株式会社 | チャネル推定方法および受信機 |
US9294949B2 (en) * | 2012-08-28 | 2016-03-22 | Intel Deutschland Gmbh | Interference and noise estimation of a communications channel |
US9848428B2 (en) * | 2013-08-27 | 2017-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Positioning of wireless devices |
US10608761B2 (en) | 2014-12-16 | 2020-03-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and arrangements for CSI prediction |
CN108234365A (zh) * | 2018-02-26 | 2018-06-29 | 福建京奥通信技术有限公司 | Wcdma中继器下行信道参数估计系统及方法 |
CN111954987B (zh) | 2018-04-12 | 2022-04-12 | 华为技术有限公司 | 信道协方差矩阵转换 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE513657C2 (sv) * | 1993-06-24 | 2000-10-16 | Ericsson Telefon Ab L M | Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare |
US6385185B1 (en) * | 1998-06-25 | 2002-05-07 | Lucent Technologies Inc. | Methods and apparatus for coherent detection of signals with orthogonal data modulation |
US6831943B1 (en) * | 1999-08-13 | 2004-12-14 | Texas Instruments Incorporated | Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification |
US6839326B1 (en) * | 2000-09-26 | 2005-01-04 | Nokia Corporation | Antenna phase estimation algorithm for WCDMA closed loop transmitter antenna diversity system |
CN1145289C (zh) * | 2001-02-28 | 2004-04-07 | 华为技术有限公司 | 无线通信系统中导频辅助判决反馈阵列接收机及其反馈方法 |
US7149258B2 (en) * | 2001-11-28 | 2006-12-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for estimation of phase offset between communication channels |
-
2003
- 2003-10-10 CN CN2003801025082A patent/CN1708966B/zh not_active Expired - Fee Related
- 2003-10-10 DE DE60323662T patent/DE60323662D1/de not_active Expired - Lifetime
- 2003-10-10 EP EP03748443A patent/EP1559251B1/de not_active Expired - Lifetime
- 2003-10-10 US US10/532,912 patent/US8005159B2/en not_active Expired - Fee Related
- 2003-10-10 WO PCT/IB2003/004510 patent/WO2004040869A1/en active IP Right Grant
- 2003-10-10 AT AT03748443T patent/ATE408950T1/de not_active IP Right Cessation
- 2003-10-10 AU AU2003267748A patent/AU2003267748A1/en not_active Abandoned
- 2003-10-10 JP JP2005501837A patent/JP4440211B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP4440211B2 (ja) | 2010-03-24 |
EP1559251A1 (de) | 2005-08-03 |
US8005159B2 (en) | 2011-08-23 |
US20060023653A1 (en) | 2006-02-02 |
DE60323662D1 (de) | 2008-10-30 |
JP2006505227A (ja) | 2006-02-09 |
AU2003267748A1 (en) | 2004-05-25 |
EP1559251B1 (de) | 2008-09-17 |
CN1708966B (zh) | 2013-07-10 |
WO2004040869A1 (en) | 2004-05-13 |
CN1708966A (zh) | 2005-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties | ||
REN | Ceased due to non-payment of the annual fee |