JP5438123B2 - 周波数オフセットの推定 - Google Patents
周波数オフセットの推定 Download PDFInfo
- Publication number
- JP5438123B2 JP5438123B2 JP2011533743A JP2011533743A JP5438123B2 JP 5438123 B2 JP5438123 B2 JP 5438123B2 JP 2011533743 A JP2011533743 A JP 2011533743A JP 2011533743 A JP2011533743 A JP 2011533743A JP 5438123 B2 JP5438123 B2 JP 5438123B2
- Authority
- JP
- Japan
- Prior art keywords
- estimate
- frequency
- value
- frequency offset
- values
- 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
- 238000000034 method Methods 0.000 claims description 54
- 238000007476 Maximum Likelihood Methods 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 description 11
- 238000004422 calculation algorithm Methods 0.000 description 10
- 230000010363 phase shift Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012886 linear function Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000003657 Likelihood-ratio test Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
-
- 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08168187A EP2182690B1 (en) | 2008-11-03 | 2008-11-03 | Frequency offset estimation |
| EP08168187.6 | 2008-11-03 | ||
| US11249008P | 2008-11-07 | 2008-11-07 | |
| US61/112,490 | 2008-11-07 | ||
| PCT/EP2009/064399 WO2010060732A1 (en) | 2008-11-03 | 2009-10-30 | Frequency offset estimation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012507899A JP2012507899A (ja) | 2012-03-29 |
| JP2012507899A5 JP2012507899A5 (enExample) | 2012-11-29 |
| JP5438123B2 true JP5438123B2 (ja) | 2014-03-12 |
Family
ID=40328969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011533743A Expired - Fee Related JP5438123B2 (ja) | 2008-11-03 | 2009-10-30 | 周波数オフセットの推定 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8744020B2 (enExample) |
| EP (1) | EP2182690B1 (enExample) |
| JP (1) | JP5438123B2 (enExample) |
| AT (1) | ATE519309T1 (enExample) |
| WO (1) | WO2010060732A1 (enExample) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8031024B1 (en) | 2008-02-28 | 2011-10-04 | Marvell International Ltd. | Temperature-corrected frequency control with crystal oscillators |
| EP2182690B1 (en) * | 2008-11-03 | 2011-08-03 | Telefonaktiebolaget LM Ericsson (publ) | Frequency offset estimation |
| US9401784B2 (en) | 2009-10-21 | 2016-07-26 | Qualcomm Incorporated | Time and frequency acquisition and tracking for OFDMA wireless systems |
| US10111111B2 (en) | 2009-11-19 | 2018-10-23 | Qualcomm Incorporated | Per-cell timing and/or frequency acquisition and their use on channel estimation in wireless networks |
| EP2617172A4 (en) * | 2010-09-17 | 2016-04-20 | Ericsson Telefon Ab L M | RECEIVER NODES AND METHOD FOR COMPENSATING FREQUENCY SUBJECT |
| US8731119B2 (en) * | 2011-03-18 | 2014-05-20 | Marvell World Trade Ltd. | Apparatus and method for reducing receiver frequency errors |
| US9289422B2 (en) | 2011-03-24 | 2016-03-22 | Marvell World Trade Ltd. | Initial acquisition using crystal oscillator |
| US9577858B2 (en) * | 2011-06-02 | 2017-02-21 | Digi International Inc. | RF chirp receiver synchronization |
| EP2727249B1 (en) * | 2011-06-08 | 2019-08-07 | Avago Technologies International Sales Pte. Limited | Systems and methods for integrating cellular and location detection functionality using a single crystal oscillator |
| US8605799B2 (en) * | 2011-06-28 | 2013-12-10 | Telefonaktiebolaget L M Ericsson (Publ) | Estimation of frequency offset between a base station and mobile terminal |
| TWI462539B (zh) * | 2012-03-06 | 2014-11-21 | Mstar Semiconductor Inc | 頻率校正方法 |
| EP2680517B1 (en) | 2012-06-28 | 2016-12-21 | Telefonaktiebolaget LM Ericsson (publ) | Channel spread estimation |
| FR2994367B1 (fr) * | 2012-08-03 | 2016-07-15 | Thales Sa | Procede et systeme de synchronisation |
| JP6561471B2 (ja) * | 2015-01-15 | 2019-08-21 | 富士通株式会社 | 通信装置、通信方法、及び通信プログラム |
| US9872335B2 (en) | 2015-03-06 | 2018-01-16 | Marvell International Ltd. | Iterative receiver wake-up for long DRX periods |
| SG10201509261UA (en) * | 2015-11-09 | 2017-06-29 | Huawei Int Pte Ltd | Apparatus and method for direct radio frequency (rf) sampling in near field communication (nfc) devices |
| US10333525B1 (en) | 2015-12-07 | 2019-06-25 | Marvell International Ltd. | Digitally-based temperature compensation for a crystal oscillator |
| CN106028436B (zh) | 2016-04-28 | 2019-10-25 | 华为技术有限公司 | 一种时频偏补偿的方法及用户终端 |
| US10355792B2 (en) * | 2017-01-19 | 2019-07-16 | Samsung Electronics Co., Ltd. | System and method for frequency estimation bias removal |
| WO2018229255A1 (en) | 2017-06-16 | 2018-12-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency offset estimation |
| WO2018229256A1 (en) | 2017-06-16 | 2018-12-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission or reception of a reference signal in a wireless communication system |
| KR102025324B1 (ko) * | 2017-09-27 | 2019-09-25 | (주)에프씨아이 | 주파수 오프셋 추정 방법 |
| US11881907B2 (en) * | 2021-12-06 | 2024-01-23 | Qualcomm Incorporated | Frequency tracking loop pull-in range extension using frequency error wraparound detection and correction |
| CN115051899B (zh) * | 2022-04-13 | 2024-09-13 | 展讯通信(上海)有限公司 | 频偏估计方法及装置、计算机可读存储介质 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04130843A (ja) | 1990-09-21 | 1992-05-01 | Hitachi Ltd | キヤリア同期方式 |
| US20010055320A1 (en) * | 1994-12-15 | 2001-12-27 | Pierzga Wayne Francis | Multiplex communication |
| JP3327152B2 (ja) * | 1996-12-25 | 2002-09-24 | 三菱電機株式会社 | 自動周波数制御回路 |
| EP1168745A1 (en) * | 1999-11-12 | 2002-01-02 | Mitsubishi Denki Kabushiki Kaisha | Radio communication terminal capable of specifying burst position accurately and having small frequency error of regenerative carrier wave |
| US7333573B2 (en) * | 2002-08-23 | 2008-02-19 | Hitachi Kokusai Electric Inc. | Radio communication apparatus and method having automatic frequency control function |
| US20040202234A1 (en) * | 2003-04-11 | 2004-10-14 | Agency For Science, Technology And Research | Low-complexity and fast frequency offset estimation for OFDM signals |
| TWI350679B (en) | 2006-04-03 | 2011-10-11 | Realtek Semiconductor Corp | Frequency offset correction for an ultrawideband communication system |
| US8472572B2 (en) | 2006-05-04 | 2013-06-25 | St-Ericsson Sa | Receiver with AFC function for operating in soft handover |
| US7688920B2 (en) | 2006-07-12 | 2010-03-30 | Telefonaktiebolaget L M Ericsson (Publ) | AFC wrap-around detection |
| US8184675B2 (en) | 2006-07-12 | 2012-05-22 | Telefonaktiebolaget L M Ericsson (Publ) | Residual frequency offset exploitation |
| FI20075282A0 (fi) * | 2007-04-23 | 2007-04-23 | Nokia Corp | Taajuusvirheen estimointialgoritmi |
| JP4818342B2 (ja) * | 2008-10-24 | 2011-11-16 | 日本電信電話株式会社 | 周波数誤差推定装置 |
| EP2182690B1 (en) * | 2008-11-03 | 2011-08-03 | Telefonaktiebolaget LM Ericsson (publ) | Frequency offset estimation |
-
2008
- 2008-11-03 EP EP08168187A patent/EP2182690B1/en not_active Not-in-force
- 2008-11-03 AT AT08168187T patent/ATE519309T1/de not_active IP Right Cessation
-
2009
- 2009-10-30 WO PCT/EP2009/064399 patent/WO2010060732A1/en not_active Ceased
- 2009-10-30 JP JP2011533743A patent/JP5438123B2/ja not_active Expired - Fee Related
- 2009-10-30 US US13/127,044 patent/US8744020B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20110261909A1 (en) | 2011-10-27 |
| US8744020B2 (en) | 2014-06-03 |
| WO2010060732A1 (en) | 2010-06-03 |
| ATE519309T1 (de) | 2011-08-15 |
| JP2012507899A (ja) | 2012-03-29 |
| EP2182690B1 (en) | 2011-08-03 |
| EP2182690A1 (en) | 2010-05-05 |
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