DE602008004784D1 - Korrelationsgeleitete adaption der frequenzkontrolle für ein rf empfängergerät - Google Patents
Korrelationsgeleitete adaption der frequenzkontrolle für ein rf empfängergerätInfo
- Publication number
- DE602008004784D1 DE602008004784D1 DE602008004784T DE602008004784T DE602008004784D1 DE 602008004784 D1 DE602008004784 D1 DE 602008004784D1 DE 602008004784 T DE602008004784 T DE 602008004784T DE 602008004784 T DE602008004784 T DE 602008004784T DE 602008004784 D1 DE602008004784 D1 DE 602008004784D1
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- correlation
- filter parameter
- control unit
- unit
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0063—Elements of loops
- H04L2027/0065—Frequency error detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0063—Elements of loops
- H04L2027/0069—Loop filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0071—Control of loops
- H04L2027/0079—Switching between loops
- H04L2027/0081—Switching between loops between loops of different bandwidths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0083—Signalling arrangements
- H04L2027/0087—Out-of-band signals, (e.g. pilots)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07291186 | 2007-10-01 | ||
PCT/IB2008/053974 WO2009044337A1 (en) | 2007-10-01 | 2008-09-30 | Correlation-driven adaptation of frequency control for a rf receiver device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602008004784D1 true DE602008004784D1 (de) | 2011-03-10 |
Family
ID=40328991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602008004784T Active DE602008004784D1 (de) | 2007-10-01 | 2008-09-30 | Korrelationsgeleitete adaption der frequenzkontrolle für ein rf empfängergerät |
Country Status (6)
Country | Link |
---|---|
US (1) | US8081939B2 (de) |
EP (1) | EP2179506B1 (de) |
CN (1) | CN101816126B (de) |
AT (1) | ATE497278T1 (de) |
DE (1) | DE602008004784D1 (de) |
WO (1) | WO2009044337A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8811917B2 (en) | 2002-05-01 | 2014-08-19 | Dali Systems Co. Ltd. | Digital hybrid mode power amplifier system |
US8380143B2 (en) | 2002-05-01 | 2013-02-19 | Dali Systems Co. Ltd | Power amplifier time-delay invariant predistortion methods and apparatus |
WO2008078195A2 (en) | 2006-12-26 | 2008-07-03 | Dali Systems Co., Ltd. | Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
CN103180844B (zh) | 2010-08-17 | 2017-10-03 | 大力系统有限公司 | 用于分布式天线系统的中性主机架构 |
CN105141513B (zh) | 2010-09-14 | 2018-12-14 | 大力系统有限公司 | 操作分布式天线系统的方法和在该系统中进行通信的方法 |
US9680485B2 (en) * | 2012-06-28 | 2017-06-13 | Intel Deutschland Gmbh | Automatic frequency control |
CN104682978B (zh) | 2013-12-02 | 2017-08-29 | 上海东软载波微电子有限公司 | 载波频偏处理方法和装置及接收机 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6324228B1 (en) * | 1998-12-30 | 2001-11-27 | International Business Machines Corporation | Method and apparatus for robust frequency tracking in strong channel interference using carrier signal relative strength and frequency error |
US6493406B1 (en) * | 1999-07-22 | 2002-12-10 | Motorola Inc | Method and apparatus for symbol independent discriminator correlator automatic frequency control |
CN1141815C (zh) * | 2000-12-18 | 2004-03-10 | 信息产业部电信传输研究所 | 一种码分多址多径衰落信道的频率自动校正装置 |
JP3873696B2 (ja) | 2001-09-18 | 2007-01-24 | 株式会社日立製作所 | 電力半導体モジュール及び電力変換装置 |
EP1383239A1 (de) * | 2002-07-17 | 2004-01-21 | STMicroelectronics N.V. | Verfahren und Einrichtung zur automatischen Frequenzregelung in einem DS-CDMA-Empfänger |
KR100592902B1 (ko) * | 2003-12-27 | 2006-06-23 | 한국전자통신연구원 | 적응형 주파수 제어 장치 및 그 방법 |
US7639766B2 (en) * | 2004-09-27 | 2009-12-29 | Via Telecom Co., Ltd. | Combined automatic frequency correction and time track system to minimize sample timing errors |
-
2008
- 2008-09-30 AT AT08807856T patent/ATE497278T1/de not_active IP Right Cessation
- 2008-09-30 CN CN2008801099055A patent/CN101816126B/zh not_active Expired - Fee Related
- 2008-09-30 US US12/681,071 patent/US8081939B2/en not_active Expired - Fee Related
- 2008-09-30 DE DE602008004784T patent/DE602008004784D1/de active Active
- 2008-09-30 EP EP08807856A patent/EP2179506B1/de not_active Not-in-force
- 2008-09-30 WO PCT/IB2008/053974 patent/WO2009044337A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US8081939B2 (en) | 2011-12-20 |
CN101816126A (zh) | 2010-08-25 |
WO2009044337A1 (en) | 2009-04-09 |
ATE497278T1 (de) | 2011-02-15 |
EP2179506B1 (de) | 2011-01-26 |
US20100311372A1 (en) | 2010-12-09 |
EP2179506A1 (de) | 2010-04-28 |
CN101816126B (zh) | 2012-06-20 |
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Legal Events
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R082 | Change of representative |
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