JP3428965B2 - 直交周波数分割多重/符号分割多重接続システムの周波数同期装置 - Google Patents
直交周波数分割多重/符号分割多重接続システムの周波数同期装置Info
- Publication number
- JP3428965B2 JP3428965B2 JP2000586030A JP2000586030A JP3428965B2 JP 3428965 B2 JP3428965 B2 JP 3428965B2 JP 2000586030 A JP2000586030 A JP 2000586030A JP 2000586030 A JP2000586030 A JP 2000586030A JP 3428965 B2 JP3428965 B2 JP 3428965B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- data
- unit
- sample data
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
- H04L5/026—Multiplexing of multicarrier modulation signals using code division
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
- H04L27/2659—Coarse or integer frequency offset determination and synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
- H04L27/266—Fine or fractional frequency offset determination and synchronisation
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR19980052234 | 1998-12-01 | ||
KR1998/52234 | 1998-12-01 | ||
PCT/KR1999/000726 WO2000033496A1 (en) | 1998-12-01 | 1999-12-01 | Frequency synchronizing device for ofdm/cdma system |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002531999A JP2002531999A (ja) | 2002-09-24 |
JP3428965B2 true JP3428965B2 (ja) | 2003-07-22 |
Family
ID=19560741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000586030A Expired - Fee Related JP3428965B2 (ja) | 1998-12-01 | 1999-12-01 | 直交周波数分割多重/符号分割多重接続システムの周波数同期装置 |
Country Status (5)
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101038855B1 (ko) * | 2008-12-04 | 2011-06-02 | 성균관대학교산학협력단 | Ofdm 시스템에서의 주파수 동기 장치 및 방법 |
Families Citing this family (69)
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US6876675B1 (en) * | 1998-02-06 | 2005-04-05 | Cisco Technology, Inc. | Synchronization in OFDM systems |
EP1061746A1 (en) * | 1999-06-14 | 2000-12-20 | Sony International (Europe) GmbH | Channel decoder for a digital broadcast receiver |
US6862297B1 (en) * | 1999-12-21 | 2005-03-01 | Cisco Technology, Inc. | Wide range frequency offset estimation in OFDM systems |
JP2001320342A (ja) * | 2000-05-11 | 2001-11-16 | Nec Corp | Fdm−cdma送信方法、fdm−cdma受信方法及びそれらの装置 |
FI20001289A (fi) * | 2000-05-30 | 2001-12-01 | Nokia Mobile Phones Ltd | Menetelmä ja järjestely taajuuspoikkeaman vähentämiseksi radiovastaanottimessa |
US6930989B1 (en) * | 2000-06-20 | 2005-08-16 | Cisco Technology, Inc. | Wide frequency offset correction using encoded interburst phase differences |
IT1318161B1 (it) * | 2000-07-14 | 2003-07-23 | Cit Alcatel | Metodo e dispositivo per il recupero di portante in sistemi ofdm |
KR100376803B1 (ko) * | 2000-09-29 | 2003-03-19 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식 시스템의 주파수 옵셋 보상장치 및 방법 |
GB2369015A (en) * | 2000-11-09 | 2002-05-15 | Sony Uk Ltd | Receiver that uses guard signals to estimate synchronisation position |
FR2816776B1 (fr) * | 2000-11-10 | 2003-02-07 | Cit Alcatel | Procede de correction de l'erreur de frequence |
US7106709B2 (en) * | 2000-11-29 | 2006-09-12 | Telefonaktiebologet Lm Ericsson (Publ) | Timing drift compensation in wireless packet-based systems |
JP4341176B2 (ja) * | 2000-12-08 | 2009-10-07 | ソニー株式会社 | 受信同期装置およびそれを用いた復調装置 |
US7012881B2 (en) * | 2000-12-29 | 2006-03-14 | Samsung Electronic Co., Ltd. | Timing and frequency offset estimation scheme for OFDM systems by using an analytic tone |
US7218666B2 (en) * | 2000-12-29 | 2007-05-15 | Motorola, Inc. | Method and system for transmission and frequency domain equalization for wideband CDMA system |
GB0104280D0 (en) * | 2001-02-21 | 2001-11-21 | Cambridge Silicon Radio Ltd | Estimating frequency offset |
US6826244B2 (en) * | 2001-02-27 | 2004-11-30 | Interdigital Technology Corporation | Initial cell search algorithm for 3G FDD wireless communication systems |
US7248652B2 (en) * | 2001-02-28 | 2007-07-24 | Agere Systems Inc. | Method and apparatus for recovering timing information in orthogonal frequency division multiplexing (OFDM) systems |
US6940827B2 (en) * | 2001-03-09 | 2005-09-06 | Adaptix, Inc. | Communication system using OFDM for one direction and DSSS for another direction |
FR2823395B1 (fr) * | 2001-04-05 | 2003-07-18 | Canon Kk | Procede et dispositif de synchronisation dans un recepteur |
US7035201B2 (en) * | 2001-04-20 | 2006-04-25 | Mediatek Inc. | Programmable transceiver structure of multi-rate OFDM-CDMA for wireless multimedia communications |
US7706458B2 (en) * | 2001-04-24 | 2010-04-27 | Mody Apurva N | Time and frequency synchronization in Multi-Input, Multi-Output (MIMO) systems |
US7310304B2 (en) * | 2001-04-24 | 2007-12-18 | Bae Systems Information And Electronic Systems Integration Inc. | Estimating channel parameters in multi-input, multi-output (MIMO) systems |
US7088782B2 (en) * | 2001-04-24 | 2006-08-08 | Georgia Tech Research Corporation | Time and frequency synchronization in multi-input, multi-output (MIMO) systems |
JP3628977B2 (ja) * | 2001-05-16 | 2005-03-16 | 松下電器産業株式会社 | 無線基地局装置及び通信端末装置 |
EP1267536A1 (en) * | 2001-06-13 | 2002-12-18 | Conexant Systems, Inc. | Multicarrier receiver with detection of the transmission mode and length of the guard interval |
US7027534B2 (en) * | 2001-06-22 | 2006-04-11 | Sirf Technology, Inc. | Extracting fine-tuned estimates from correlation functions evaluated at a limited number of values |
US7826493B2 (en) * | 2001-08-27 | 2010-11-02 | Broadcom Corp. | Frequency offset correction circuit for WCDMA |
US7430191B2 (en) * | 2001-09-10 | 2008-09-30 | Qualcomm Incorporated | Method and apparatus for performing frequency tracking based on diversity transmitted pilots in a CDMA communication system |
KR100807886B1 (ko) * | 2001-09-24 | 2008-02-27 | 에스케이 텔레콤주식회사 | 직교 주파수 분할 다중화 시스템의 수신 장치 |
JPWO2003032542A1 (ja) * | 2001-09-28 | 2005-01-27 | 富士通株式会社 | 周波数同期方法及び周波数同期装置 |
CA2428576C (en) * | 2002-05-16 | 2008-10-07 | Ntt Docomo, Inc. | Transmitter for multi-carrier transmission and multi-carrier transmitting method |
AU2003244955A1 (en) * | 2002-06-25 | 2004-01-06 | Koninklijke Philips Electronics N.V. | Mt-cdma using spreading codes with interference-free windows |
SG129231A1 (en) * | 2002-07-03 | 2007-02-26 | Oki Techno Ct Singapore Pte | Receiver and method for wlan burst type signals |
EP1531568A4 (en) * | 2002-08-23 | 2011-10-26 | Panasonic Corp | ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TRANSMISSION DEVICE AND CODE DIVISION MULTIPLE ACCESS AND OPTICAL FREQUENCY MULTIPLEXING TRANSMISSION METHOD AND CODE DIVISION MULTIPLE ACCESS |
US7280464B1 (en) * | 2002-09-27 | 2007-10-09 | Rockwell Collins, Inc. | Featureless synchronization in multi-user OFDM |
US7889819B2 (en) * | 2002-10-04 | 2011-02-15 | Apurva Mody | Methods and systems for sampling frequency offset detection, correction and control for MIMO OFDM systems |
KR100470401B1 (ko) | 2002-12-24 | 2005-02-05 | 한국전자통신연구원 | 그룹화 최유도 검출을 이용한 무선 통신 시스템 및 방법 |
US7684501B2 (en) * | 2003-02-19 | 2010-03-23 | Realtek Semiconductor Corp. | Apparatus and method for carrier frequency offset and phase compensation in communication system |
KR100528332B1 (ko) * | 2003-03-15 | 2006-01-09 | 삼성전자주식회사 | Ofdm 시스템에서의 초기 주파수 동기 방법 및 장치 |
TWI252656B (en) * | 2003-03-21 | 2006-04-01 | Realtek Semiconductor Corp | Sampling clock compensation device of multi-carrier system and method thereof |
SE527445C2 (sv) | 2003-03-25 | 2006-03-07 | Telia Ab | Lägesanpassat skyddsintervall för OFDM-kommunikation |
US7224754B2 (en) * | 2003-06-02 | 2007-05-29 | Silicon Integrated Systems Corp. | Frequency offset compensation estimation system and method for a wireless local area network |
TWI220547B (en) * | 2003-07-08 | 2004-08-21 | Realtek Semiconductor Corp | Symbol boundary detection device and method |
US7277457B2 (en) * | 2003-10-03 | 2007-10-02 | Motorola, Inc. | Sync bursts for frequency offset compensation |
KR100590354B1 (ko) * | 2003-12-15 | 2006-06-15 | 삼성탈레스 주식회사 | Ofdm 시스템에서의 잔류 주파수 오프셋 보상 방법 및장치 |
KR100601939B1 (ko) * | 2004-01-16 | 2006-07-14 | 삼성전자주식회사 | Ofdm 시스템에서의 초기 주파수 동기 방법 및 장치 |
US7515657B1 (en) * | 2004-03-05 | 2009-04-07 | Marvell International Ltd. | Frequency tracking for OFDM transmission over frequency selective channels |
US7545870B1 (en) * | 2004-04-14 | 2009-06-09 | Panasonic Corporation | Reception device |
US7336732B1 (en) * | 2004-07-28 | 2008-02-26 | L-3 Communications Titan Corporation | Carrier frequency detection for signal acquisition |
US8401503B2 (en) | 2005-03-01 | 2013-03-19 | Qualcomm Incorporated | Dual-loop automatic frequency control for wireless communication |
US8009775B2 (en) | 2005-03-11 | 2011-08-30 | Qualcomm Incorporated | Automatic frequency control for a wireless communication system with multiple subcarriers |
US7272756B2 (en) * | 2005-05-03 | 2007-09-18 | Agere Systems Inc. | Exploitive test pattern apparatus and method |
US7447965B2 (en) * | 2005-05-03 | 2008-11-04 | Agere Systems Inc. | Offset test pattern apparatus and method |
JP4775703B2 (ja) | 2005-10-05 | 2011-09-21 | カシオ計算機株式会社 | 無線テレビシステム、無線テレビ受信装置及び送信装置 |
KR101259100B1 (ko) | 2005-11-04 | 2013-04-26 | 엘지전자 주식회사 | Ofdm 또는 ofdma 무선 이동통신 시스템에서의초기 동기를 위한 신호 전송 방법, 초기 동기 획득 방법 및이동통신용 단말 |
JP2007181016A (ja) * | 2005-12-28 | 2007-07-12 | Oki Electric Ind Co Ltd | 判定タイミング同期回路及び受信回路 |
KR20070095138A (ko) | 2006-03-20 | 2007-09-28 | 삼성전자주식회사 | 직교분할 다중접속 시스템에서 순차적 간섭 제거 방식을이용한 상향 링크 신호 수신 장치 및 방법 |
KR20070095135A (ko) * | 2006-03-20 | 2007-09-28 | 삼성전자주식회사 | 직교 분할 다중 접속 시스템에서 부반송파 간의 간섭을줄여주는 상향 링크 수신 장치 및 그 제어방법 |
TW200913592A (en) * | 2007-05-25 | 2009-03-16 | Amicus Wireless Technology Ltd | OFDM-based device and method for performing synchronization in the presence of interference signals |
US7978749B2 (en) * | 2007-07-13 | 2011-07-12 | Crestcom, Inc. | Bandjamming multi-channel DSSS transmitter and method therefor |
US8351519B2 (en) * | 2008-08-15 | 2013-01-08 | Qualcomm Incorporated | Embedding information in an 802.11 signal field |
US20100046656A1 (en) * | 2008-08-20 | 2010-02-25 | Qualcomm Incorporated | Preamble extensions |
US20100290449A1 (en) * | 2008-08-20 | 2010-11-18 | Qualcomm Incorporated | Preamble extensions |
US8238479B2 (en) | 2009-03-13 | 2012-08-07 | Advanced Micro Devices, Inc. | Synchronization and acquisition for mobile television reception |
US8576743B2 (en) * | 2010-12-28 | 2013-11-05 | Qualcomm Incorporated | Apparatus and methods for estimating an unknown frequency error of a tone signal |
WO2014069953A1 (ko) * | 2012-11-04 | 2014-05-08 | 엘지전자 주식회사 | 동기 신호 수신 방법 및 사용자기기와, 동기 신호 전송 방법 및 기지국 |
TW201611553A (zh) * | 2014-09-09 | 2016-03-16 | 聯詠科技股份有限公司 | 偵測正交分頻多工信號的保護間隔的裝置及其偵測方法 |
EP3387754B1 (en) * | 2015-12-07 | 2021-05-12 | Telefonaktiebolaget LM Ericsson (publ) | Wireless communication device and method therein for time synchronization in a wireless communication network |
KR101935991B1 (ko) * | 2017-02-14 | 2019-01-07 | 국방과학연구소 | 단일 수신기의 고정밀 주파수 추정 장치 및 그 방법 |
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US5444697A (en) * | 1993-08-11 | 1995-08-22 | The University Of British Columbia | Method and apparatus for frame synchronization in mobile OFDM data communication |
JP3041175B2 (ja) * | 1993-11-12 | 2000-05-15 | 株式会社東芝 | Ofdm同期復調回路 |
US5953311A (en) * | 1997-02-18 | 1999-09-14 | Discovision Associates | Timing synchronization in a receiver employing orthogonal frequency division multiplexing |
JP3684727B2 (ja) * | 1996-12-26 | 2005-08-17 | ソニー株式会社 | 通信方法及び受信装置 |
US6130922A (en) * | 1997-05-02 | 2000-10-10 | Lsi Logic Corporation | Demodulating digital video broadcast signals |
US6134286A (en) * | 1997-10-14 | 2000-10-17 | Ericsson Inc. | Synchronization techniques and systems for radiocommunication |
DE69942222D1 (de) * | 1999-02-11 | 2010-05-20 | Motorola Inc | Schätzung von Träger- und Abtastungsfrequenzverschiebungen in Mehrträgerempfängern |
-
1999
- 1999-12-01 WO PCT/KR1999/000726 patent/WO2000033496A1/en active Application Filing
- 1999-12-01 DE DE69939310T patent/DE69939310D1/de not_active Expired - Lifetime
- 1999-12-01 JP JP2000586030A patent/JP3428965B2/ja not_active Expired - Fee Related
- 1999-12-01 EP EP99958501A patent/EP1051818B1/en not_active Expired - Lifetime
- 1999-12-01 US US09/452,359 patent/US6373861B1/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101038855B1 (ko) * | 2008-12-04 | 2011-06-02 | 성균관대학교산학협력단 | Ofdm 시스템에서의 주파수 동기 장치 및 방법 |
Also Published As
Publication number | Publication date |
---|---|
DE69939310D1 (de) | 2008-09-25 |
EP1051818A1 (en) | 2000-11-15 |
WO2000033496A1 (en) | 2000-06-08 |
EP1051818B1 (en) | 2008-08-13 |
US6373861B1 (en) | 2002-04-16 |
JP2002531999A (ja) | 2002-09-24 |
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