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IN2012DN00218A - - Google Patents

Info

Publication number
IN2012DN00218A
IN2012DN00218A IN218DEN2012A IN2012DN00218A IN 2012DN00218 A IN2012DN00218 A IN 2012DN00218A IN 218DEN2012 A IN218DEN2012 A IN 218DEN2012A IN 2012DN00218 A IN2012DN00218 A IN 2012DN00218A
Authority
IN
India
Prior art keywords
communications
transmission channel
signal
unit
receiver unit
Prior art date
Application number
Inventor
Schwager Andreas
Spalink Gerd
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of IN2012DN00218A publication Critical patent/IN2012DN00218A/en

Links

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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/005—Reducing noise, e.g. humm, from the supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/29—Performance testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/26265—Arrangements for sidelobes suppression specially adapted to multicarrier systems, e.g. spectral precoding
    • 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
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuits Of Receivers In General (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A communications system (100) includes a receiver unit (120, 420) connected with a transmission channel (105, 405, 505). The receiver unit (120, 420) determines a signal power of a first communications signal received over the transmission channel (105, 405, 505). A transmitter unit (110, 510) is connected with the transmission channel (105, 405, 505) and transmits a second communications signal, wherein a gain of the communications signal being output by the transmitter unit (110, 510) is controllable. A control unit (151, 551) controls the gain of the transmitter unit in response to the determined signal power. At the receiver unit (120, 420), detection of broadcast signal ingress during data communication is improved and methods for avoiding disturbances between coexisting communications systems may become more reliable. Different distances between successive training symbols (606) suitable for channel estimation may be provided in order to enhance the noise measurement.
IN218DEN2012 2009-07-16 2010-07-01 IN2012DN00218A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09009295 2009-07-16
PCT/EP2010/003981 WO2011006585A2 (en) 2009-07-16 2010-07-01 Communications system using adaptive frequency notching

Publications (1)

Publication Number Publication Date
IN2012DN00218A true IN2012DN00218A (en) 2015-05-01

Family

ID=43243667

Family Applications (1)

Application Number Title Priority Date Filing Date
IN218DEN2012 IN2012DN00218A (en) 2009-07-16 2010-07-01

Country Status (8)

Country Link
US (2) US9001919B2 (en)
EP (1) EP2454821B1 (en)
KR (1) KR101630488B1 (en)
CN (1) CN102474304B (en)
BR (1) BRPI1011889B1 (en)
IN (1) IN2012DN00218A (en)
RU (1) RU2542716C2 (en)
WO (1) WO2011006585A2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2494702B1 (en) 2009-10-26 2017-09-20 Sony Corporation Device for use in a power line communication system, power line communication systems and power line communication method
TWI521902B (en) * 2010-06-09 2016-02-11 新力股份有限公司 Method for operating a plc system, plc modem device and plc system
US20120027062A1 (en) * 2010-07-28 2012-02-02 Battelle Energy Alliance, Llc Apparatuses and methods for setting an adaptive frequency band for power line communciation
JP5696888B2 (en) * 2011-03-10 2015-04-08 ソニー株式会社 Receiving device, receiving method, and program
CN103460614B (en) * 2011-04-26 2015-11-25 索尼公司 Method, power line communications apparatus, the electric line communication system of electrical power for operation line communication system
DE102011052734A1 (en) * 2011-08-16 2013-02-21 Devolo Ag Method and device for detecting interferers during a transmission
EP2645634A1 (en) * 2012-03-27 2013-10-02 Alcatel Lucent PLC network topology extraction method using node-to-node transfer functions
PL2744117T3 (en) * 2012-12-13 2017-09-29 Deutsche Telekom Ag Method for reducing interference in a communication network
TW201445939A (en) * 2013-02-15 2014-12-01 Sony Corp OFDM encoding apparatus and method
US9042432B2 (en) 2013-03-14 2015-05-26 Qualcomm Incorporated Adaptive filter bank for dynamic notching in powerline communication
US20150111583A1 (en) * 2013-10-21 2015-04-23 Qualcomm Incorporated Communicating detection of controlled radio frequencies
US20150318893A1 (en) * 2014-04-30 2015-11-05 Qualcomm Incorporated Lowering transmission power responsive to broadcast radio transmissions
US10090706B2 (en) * 2014-09-30 2018-10-02 Aclara Technologies Llc VLF band sensor array for power distribution networks
JP2017017639A (en) * 2015-07-06 2017-01-19 富士通株式会社 Wireless transmission system and signal transmission method
CN107645463B (en) * 2016-07-22 2021-01-22 联发科技股份有限公司 Detection method and detection device for detecting notch frequency band
WO2019112588A1 (en) * 2017-12-07 2019-06-13 Halliburton Energy Services, Inc. Digital baseband communication on power line downhole
CN111565402B (en) * 2020-03-24 2023-08-18 国网辽宁省电力有限公司朝阳供电公司 A communication training system and training method for wireless communication
RU2739940C1 (en) * 2020-05-14 2020-12-30 федеральное государственное бюджетное образовательное учреждение высшего образования «Томский государственный университет систем управления и радиоэлектроники» Adaptive modulation method for communication systems using orthogonal frequency multiplexing signals
KR102511557B1 (en) * 2021-09-03 2023-03-16 국방과학연구소 Spectrum channelization-based real-time signal generator and method thereof

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1059679A1 (en) * 1982-02-04 1983-12-07 Предприятие П/Я М-5632 Radio link with power control
SU1524188A1 (en) * 1987-07-13 1989-11-23 Военная Краснознаменная академия связи им.С.М.Буденного Method of controlling transmitter radiation power
US5852630A (en) * 1997-07-17 1998-12-22 Globespan Semiconductor, Inc. Method and apparatus for a RADSL transceiver warm start activation procedure with precoding
US6426983B1 (en) * 1998-09-14 2002-07-30 Terayon Communication Systems, Inc. Method and apparatus of using a bank of filters for excision of narrow band interference signal from CDMA signal
KR20010087690A (en) 2000-03-08 2001-09-21 정진형 Wireless ear phone systme
US6542029B1 (en) * 2000-10-11 2003-04-01 Skyworks Solutions, Inc. Variable-slope variable-gain amplifier
US6993291B2 (en) * 2001-10-11 2006-01-31 Nokia Corporation Method and apparatus for continuously controlling the dynamic range from an analog-to-digital converter
US7212586B2 (en) * 2002-01-18 2007-05-01 Broadcom Corporation Direct conversion RF transceiver for wireless communications
US20060217096A1 (en) 2003-03-13 2006-09-28 David Le Goff Testing apparatus for digital telecommunication
KR100603561B1 (en) 2004-04-16 2006-07-24 삼성전자주식회사 Wireless LAN system based on transmission power control and transmission power control method thereof
JP4754268B2 (en) 2004-05-27 2011-08-24 パナソニック株式会社 COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD
US8194722B2 (en) * 2004-10-11 2012-06-05 Broadcom Corporation Various methods and apparatuses for impulse noise mitigation
EP1827039B1 (en) * 2004-12-14 2016-08-17 Fujitsu Limited Wireless communication device, and communication method
WO2006073013A1 (en) 2005-01-06 2006-07-13 Murata Manufacturing Co., Ltd. Wireless receiver and wireless transmitter
EP1718019B1 (en) 2005-04-29 2017-07-19 Sony Deutschland GmbH Equalising structure and method with maximum likelihood detection
US7783260B2 (en) * 2006-04-27 2010-08-24 Crestcom, Inc. Method and apparatus for adaptively controlling signals
TW200906672A (en) 2007-02-23 2009-02-16 Gustav Magenwirth Gmbh & Amo Co Kg Quick-release hub axle
JP5448359B2 (en) * 2007-05-30 2014-03-19 パナソニック株式会社 Power line communication method, power line communication apparatus, and power line communication system
EP2020758A1 (en) 2007-08-01 2009-02-04 Sony Corporation Method for transmitting a signal over a power line channel and power line communication modem
GB0725110D0 (en) * 2007-12-21 2008-01-30 Wolfson Microelectronics Plc Gain control based on noise level
JP5151771B2 (en) * 2008-07-28 2013-02-27 富士通株式会社 Signal transmission device and signal transmission device control method

Also Published As

Publication number Publication date
WO2011006585A3 (en) 2011-04-14
EP2454821A2 (en) 2012-05-23
BRPI1011889B1 (en) 2021-02-09
CN104320159A (en) 2015-01-28
US20120147938A1 (en) 2012-06-14
CN102474304A (en) 2012-05-23
BRPI1011889A2 (en) 2016-04-12
US9356708B2 (en) 2016-05-31
RU2542716C2 (en) 2015-02-27
EP2454821B1 (en) 2018-05-16
US9001919B2 (en) 2015-04-07
CN102474304B (en) 2014-11-12
WO2011006585A2 (en) 2011-01-20
RU2012101261A (en) 2013-08-27
KR101630488B1 (en) 2016-06-14
KR20120033325A (en) 2012-04-06
US20150180589A1 (en) 2015-06-25

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