HK1045229B - 頻率偏移量校正的方法和裝置 - Google Patents
頻率偏移量校正的方法和裝置Info
- Publication number
- HK1045229B HK1045229B HK02106623.0A HK02106623A HK1045229B HK 1045229 B HK1045229 B HK 1045229B HK 02106623 A HK02106623 A HK 02106623A HK 1045229 B HK1045229 B HK 1045229B
- Authority
- HK
- Hong Kong
- Prior art keywords
- frequency offset
- offset correction
- correction
- frequency
- offset
- Prior art date
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
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
-
- 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
- H04B1/709—Correlator structure
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/003—Correction of carrier offset at baseband only
-
- 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
- H04L2027/0053—Closed loops
- H04L2027/0057—Closed loops quadrature phase
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/298,252 US6363102B1 (en) | 1999-04-23 | 1999-04-23 | Method and apparatus for frequency offset correction |
PCT/US2000/010743 WO2000065797A1 (en) | 1999-04-23 | 2000-04-21 | Method and apparatus for frequency offset correction |
Publications (2)
Publication Number | Publication Date |
---|---|
HK1045229A1 HK1045229A1 (en) | 2002-11-15 |
HK1045229B true HK1045229B (zh) | 2009-01-30 |
Family
ID=23149711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK02106623.0A HK1045229B (zh) | 1999-04-23 | 2002-09-09 | 頻率偏移量校正的方法和裝置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6363102B1 (zh) |
EP (1) | EP1173961B1 (zh) |
JP (1) | JP4444517B2 (zh) |
KR (1) | KR100782313B1 (zh) |
CN (1) | CN100391206C (zh) |
AU (1) | AU4366600A (zh) |
BR (1) | BR0009922A (zh) |
DE (1) | DE60040145D1 (zh) |
HK (1) | HK1045229B (zh) |
WO (1) | WO2000065797A1 (zh) |
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US6606363B1 (en) * | 1999-12-28 | 2003-08-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for estimating a frequency offset by combining pilot symbols and data symbols |
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DE10043743A1 (de) * | 2000-09-05 | 2002-03-14 | Infineon Technologies Ag | Automatische Frequenzkorrektur für Mobilfunkempfänger |
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KR100406530B1 (ko) * | 2001-11-30 | 2003-11-21 | 한국전자통신연구원 | 주파수 옵셋 측정부를 사용한 자동 주파수 제어 장치 및그 방법 |
KR100869500B1 (ko) * | 2001-12-29 | 2008-11-19 | 엘지전자 주식회사 | 통신 시스템에서 주파수 에러 정정 장치 및 방법 |
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JP3885657B2 (ja) * | 2002-05-10 | 2007-02-21 | Kddi株式会社 | Ofdm信号の周波数誤差を補正する受信装置 |
US6760573B2 (en) * | 2002-07-09 | 2004-07-06 | Qualcomm Incorporated | Frequency tracking using inner and outer loops |
US7177602B2 (en) * | 2002-09-23 | 2007-02-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Electronic devices having automatic frequency control systems and methods and computer program products for operating the same |
KR100979153B1 (ko) * | 2002-11-22 | 2010-08-31 | 인터디지탈 테크날러지 코포레이션 | 복소 가중치 생성(cwg) 알고리즘을 이용한 레이크 수신기에서의 채널 이득 추정 |
US7277509B2 (en) * | 2003-02-10 | 2007-10-02 | Nokia Corporation | Low complexity frequency-offset correction method |
CN1647430A (zh) * | 2003-02-25 | 2005-07-27 | 连宇通信有限公司 | 一种载波频率估计方法及装置 |
EP1465364B1 (en) * | 2003-04-04 | 2007-07-11 | Mitsubishi Electric Information Technology Centre Europe B.V. | Pre-equalization in a Multi-carrier CDMA system in a time-varying channel |
CN1607788B (zh) * | 2003-07-28 | 2011-10-26 | 上海宣普实业有限公司 | 时分无线通信系统接收机的自动频率校正方法 |
CN1607787B (zh) * | 2003-07-28 | 2010-09-29 | 上海宣普实业有限公司 | 时分无线通信系统的自动频率校正方法 |
CN1607787B9 (zh) * | 2003-07-28 | 2018-12-14 | 上海宣普实业有限公司 | 时分无线通信系统的自动频率校正方法 |
US8433005B2 (en) | 2004-01-28 | 2013-04-30 | Qualcomm Incorporated | Frame synchronization and initial symbol timing acquisition system and method |
US8724447B2 (en) | 2004-01-28 | 2014-05-13 | Qualcomm Incorporated | Timing estimation in an OFDM receiver |
US8107512B2 (en) * | 2004-03-08 | 2012-01-31 | Thomson Licensing | Method and apparatus for robust automatic frequency control in CDMA systems with constant pilot signals |
KR100555661B1 (ko) * | 2004-06-23 | 2006-03-03 | 삼성전자주식회사 | 디지털 방송 수신 시스템의 반송파 주파수 오프셋검출장치 및 그의 주파수 오프셋 검출방법 |
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KR100613602B1 (ko) * | 2005-02-07 | 2006-08-21 | 삼성전자주식회사 | Vsb 수신기에 적용되는 심벌 타이밍 복원 장치 및 그방법 |
KR100657312B1 (ko) * | 2005-02-26 | 2006-12-13 | 삼성전자주식회사 | 다중입력 다중출력-직교 주파수 분할 다중화 수신기의 주파수 오프셋 및 채널 변동 보상 장치와 그 방법 |
US7995981B2 (en) * | 2005-10-31 | 2011-08-09 | Silicon Laboratories Inc. | Receiver with image rejection calibration at an undesired picture carrier and method therefor |
US7962113B2 (en) * | 2005-10-31 | 2011-06-14 | Silicon Laboratories Inc. | Receiver with multi-tone wideband I/Q mismatch calibration and method therefor |
TWI308430B (en) * | 2006-04-26 | 2009-04-01 | Ind Tech Res Inst | Phase tracking method and device thereof |
US8441751B1 (en) * | 2006-08-18 | 2013-05-14 | Marvell International Ltd. | Dibit pulse extraction methods and systems |
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-
1999
- 1999-04-23 US US09/298,252 patent/US6363102B1/en not_active Expired - Lifetime
-
2000
- 2000-04-21 KR KR1020017013570A patent/KR100782313B1/ko active IP Right Grant
- 2000-04-21 BR BR0009922-8A patent/BR0009922A/pt not_active IP Right Cessation
- 2000-04-21 JP JP2000614627A patent/JP4444517B2/ja not_active Expired - Lifetime
- 2000-04-21 AU AU43666/00A patent/AU4366600A/en not_active Abandoned
- 2000-04-21 DE DE60040145T patent/DE60040145D1/de not_active Expired - Lifetime
- 2000-04-21 WO PCT/US2000/010743 patent/WO2000065797A1/en active Application Filing
- 2000-04-21 CN CNB008065195A patent/CN100391206C/zh not_active Expired - Lifetime
- 2000-04-21 EP EP00923565A patent/EP1173961B1/en not_active Expired - Lifetime
-
2002
- 2002-09-09 HK HK02106623.0A patent/HK1045229B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE60040145D1 (de) | 2008-10-16 |
US6363102B1 (en) | 2002-03-26 |
JP4444517B2 (ja) | 2010-03-31 |
WO2000065797A1 (en) | 2000-11-02 |
EP1173961A1 (en) | 2002-01-23 |
CN1358385A (zh) | 2002-07-10 |
AU4366600A (en) | 2000-11-10 |
KR20010110802A (ko) | 2001-12-13 |
CN100391206C (zh) | 2008-05-28 |
EP1173961B1 (en) | 2008-09-03 |
JP2002543674A (ja) | 2002-12-17 |
HK1045229A1 (en) | 2002-11-15 |
KR100782313B1 (ko) | 2007-12-06 |
BR0009922A (pt) | 2002-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20190421 |