IN2014DN08872A - - Google Patents

Download PDF

Info

Publication number
IN2014DN08872A
IN2014DN08872A IN8872DEN2014A IN2014DN08872A IN 2014DN08872 A IN2014DN08872 A IN 2014DN08872A IN 8872DEN2014 A IN8872DEN2014 A IN 8872DEN2014A IN 2014DN08872 A IN2014DN08872 A IN 2014DN08872A
Authority
IN
India
Prior art keywords
symbol
error
phase error
bit string
output
Prior art date
Application number
Inventor
Norifumi Kamiya
Eisaku Sasaki
Original Assignee
Nec Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nec Corp filed Critical Nec Corp
Publication of IN2014DN08872A publication Critical patent/IN2014DN08872A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3836—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using the received modulated signal or the received IF signal, e.g. by detecting a pilot or by frequency multiplication
    • 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
    • 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
    • H04L2027/0046—Open loops
    • 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
    • H04L2027/0061—Closed loops remodulation
    • 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
    • H04L2027/0067—Phase 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
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0087—Out-of-band signals, (e.g. pilots)

Abstract

The present invention provides a carrier wave reproduction device in which bit error characteristics are improved without decreasing transmission capacity. The carrier wave reproduction device is equipped with an interpolation filter that estimates a phase error for a received symbol on the basis of a pilot symbol included in the received symbol a first phase rotation machine that rotates the received symbol in response to the phase error estimated by the interpolation filter and then outputs the rotated symbol as a first output symbol a phase error compensating unit that compensates for the phase error remaining in the first output symbol and then outputs the result of the compensation as a second output symbol a QAM symbol demapping unit that calculates both a first bit string corresponding to the first output symbol and a second bit string corresponding to the second output signal and an error correction decoder which performs error correction on the bit error in the first bit string and outputs the result. The phase error compensating unit refers to the first bit string after error correction has been performed thereon and then compensates for the phase error remaining in the first output symbol.
IN8872DEN2014 2012-04-24 2013-04-23 IN2014DN08872A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012099167 2012-04-24
PCT/JP2013/061881 WO2013161801A1 (en) 2012-04-24 2013-04-23 Carrier wave reproduction device and carrier wave reproduction method

Publications (1)

Publication Number Publication Date
IN2014DN08872A true IN2014DN08872A (en) 2015-05-22

Family

ID=49483111

Family Applications (1)

Application Number Title Priority Date Filing Date
IN8872DEN2014 IN2014DN08872A (en) 2012-04-24 2013-04-23

Country Status (6)

Country Link
US (1) US9136979B2 (en)
EP (1) EP2843896B1 (en)
JP (1) JP6274100B2 (en)
CN (1) CN104272692B (en)
IN (1) IN2014DN08872A (en)
WO (1) WO2013161801A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6428644B2 (en) * 2014-01-16 2018-11-28 日本電気株式会社 COMMUNICATION DEVICE, DEMODULATION DEVICE, CARRIER REPRODUCTION DEVICE, PHASE ERROR COMPENSATION DEVICE, PHASE ERROR COMPENSATION METHOD, AND STORAGE MEDIUM CONTAINING PHASE ERROR COMPENSATION PROGRAM
JP6449569B2 (en) * 2014-06-25 2019-01-09 Ｎｅｃプラットフォームズ株式会社 Phase correction apparatus, phase correction method, and phase correction program
EP3217554B1 (en) 2016-03-11 2019-10-02 Intel IP Corporation Apparatuses and methods for compensating phase fluctuations
JP6996496B2 (en) 2016-04-19 2022-01-17 日本電気株式会社 LOS-MIMO demodulation device, communication device, LOS-MIMO transmission system, LOS-MIMO demodulation method and program
WO2018034030A1 (en) 2016-08-17 2018-02-22 日本電気株式会社 Phase noise compensation device, demodulation device, communication device, communication system, and phase noise compensation method
JP2018064223A (en) * 2016-10-14 2018-04-19 住友電気工業株式会社 Satellite broadcast receiver
FR3059183B1 (en) * 2016-11-24 2019-02-01 Continental Automotive France OPTIMIZED DEMODULATION OF RDS SIGNALS IN DIGITAL RADIO
WO2018116411A1 (en) 2016-12-21 2018-06-28 日本電気株式会社 Modulation method, decoding method, modulation device and demodulation device
US10638109B2 (en) * 2017-09-15 2020-04-28 Elphel, Inc. Method for the FPGA-based long range multi-view stereo with differential image rectification
CN109586869B (en) * 2017-09-29 2021-08-06 中国移动通信有限公司研究院 SRS transmission method, phase difference processing method, communication device and storage medium
US20220263687A1 (en) * 2019-07-29 2022-08-18 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for phase-aided adaptive modulation
US11283658B2 (en) * 2019-10-15 2022-03-22 Raytheon Company Phase-based pre-carrier detection

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716520B1 (en) * 1994-06-23 2004-05-12 NTT DoCoMo, Inc. Cdma demodulation circuit and demodulating method
JP3243776B2 (en) * 1995-01-06 2002-01-07 株式会社エヌ・ティ・ティ・ドコモ Frequency hopping transmission method
DE69940235D1 (en) * 1998-05-26 2009-02-26 Panasonic Corp Modulator, demodulator, and transmission system for OFDM transmission
JP3646010B2 (en) 1998-09-18 2005-05-11 株式会社ケンウッド Digital satellite receiver
US6249180B1 (en) 1999-09-08 2001-06-19 Atmel Corporation Phase noise and additive noise estimation in a QAM demodulator
JP4958565B2 (en) * 2006-01-06 2012-06-20 パナソニック株式会社 Wireless communication device
US8261169B2 (en) * 2006-05-19 2012-09-04 Panasonic Corporation Wireless communication apparatus and wireless communication method
KR100929776B1 (en) * 2007-11-26 2009-12-03 한국전자통신연구원 Recursive Demodulation Apparatus and Method
JP5215704B2 (en) * 2008-03-26 2013-06-19 パナソニック株式会社 Adaptive demodulation method
KR101081983B1 (en) 2009-09-24 2011-11-10 한국타이어 주식회사 Hybrid performer dies of extruder mold for tire tread extruding
JP5578601B2 (en) 2009-11-05 2014-08-27 日本電気株式会社 Carrier recovery circuit, demodulation circuit, and carrier recovery method
RU2515723C2 (en) 2009-12-01 2014-05-20 Нек Корпорейшн Data transmission method, data reception method, data modulation device, data demodulation device

Also Published As

Publication number Publication date
US20150085960A1 (en) 2015-03-26
JP6274100B2 (en) 2018-02-07
CN104272692A (en) 2015-01-07
EP2843896A1 (en) 2015-03-04
WO2013161801A1 (en) 2013-10-31
EP2843896A4 (en) 2015-12-16
EP2843896B1 (en) 2018-04-04
CN104272692B (en) 2017-09-26
JPWO2013161801A1 (en) 2015-12-24
US9136979B2 (en) 2015-09-15

Similar Documents

Publication Publication Date Title
IN2014DN08872A (en)
EA201690493A2 (en) TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, RECEPTION METHOD AND METHOD FOR THE FORMATION OF MULTIDIMENSIONAL CONSTELLATIONS
WO2013022270A3 (en) Receiving device of ofdm communication system and method for alleviating phase noise thereof
GB2548214A8 (en) Method and system for damping vibrations in a tool string system
EP2567476A4 (en) Pilot symbol aided carrier phase estimation
IN2015KN00376A (en)
EP2502364A4 (en) Skew estimator, skew compensator and coherent receiver
CA2872502C (en) System and methods for coping with doppler effects in distributed-input distributed-output wireless systems
AU2013313225A8 (en) Strap tensioning system
EP3039379A4 (en) System and method for gyroscope zero-rate-offset drift reduction through demodulation phase error correction
EA201390046A1 (en) METHOD OF PRELIMINARY CODING AND TRANSMITTING DEVICE
WO2013095768A3 (en) Precoding apparatus for pilot contamination
AU2015207321A1 (en) Communication apparatus, demodulation apparatus, carrier reproduction apparatus, phase error compensation apparatus, phase error compensation method, and storage medium on which phase error compensation program has been stored
GB201017899D0 (en) Methods,system & apparatus for error-free online parameter change (opc) transi tion phase in retransmission operation methods for an error-free sra transition
EP2710771A4 (en) Inter symbol interference reduction by applying turbo equalization mode
EP2633627A4 (en) Digital i/q imbalance compensation in a quadrature receiver
EP2628248A4 (en) Joint carrier phase estimation and forward error correction
WO2012126429A3 (en) Method and device for correcting frequency offset
WO2010140137A3 (en) Method for controlling a motor
WO2013007275A3 (en) Method, receiver, transmitter and communication system for phase error compensation
IN2014MN02428A (en)
WO2013020043A3 (en) Method and apparatus for correcting temperature effects for azimuthal directional resistivity tools
GB0625244D0 (en) GPS corrections
WO2013032257A3 (en) Ferroelectric memory device and method for manufacturing same
EP2642684A4 (en) Signal processing method and apparatus in microwave communication system