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IN2012DN00680A - - Google Patents

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Publication number
IN2012DN00680A
IN2012DN00680A IN680DEN2012A IN2012DN00680A IN 2012DN00680 A IN2012DN00680 A IN 2012DN00680A IN 680DEN2012 A IN680DEN2012 A IN 680DEN2012A IN 2012DN00680 A IN2012DN00680 A IN 2012DN00680A
Authority
IN
India
Prior art keywords
interference
time
parameters
frequency
image processing
Prior art date
Application number
Inventor
Karl J Molnar
Gregory E Bottomley
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IN2012DN00680A publication Critical patent/IN2012DN00680A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Noise Elimination (AREA)
  • Image Analysis (AREA)

Abstract

Demodulation and interference parameter estimation m an OFDM receiver is improved by identifying regions, in a two-dimensional arras of time-frequency transmission positions, having related interference parameters, such as resulting from the same pre-coding scheme, transmission rank, transmitting antennas, and the like. An interference measure is estimated for each of a plurality of time-frequency positions. The interference measures are analyzed by considering them as pixels, or picture elements, in a two-dimensional image, and applying image processing algorithm to identify the regions having related interference parameters The image processing algorithms may include operations such as edge detection, segmentation, and or clustering The receiver may perform interference suppression or cancellation such as interference rejection combining of data extracted from signals received within an identified time-frequency region having related interference parameters.
IN680DEN2012 2009-07-16 2012-01-23 IN2012DN00680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/504,233 US8711769B2 (en) 2009-07-16 2009-07-16 Interferer region identification using image processing

Publications (1)

Publication Number Publication Date
IN2012DN00680A true IN2012DN00680A (en) 2015-08-21

Family

ID=43425817

Family Applications (1)

Application Number Title Priority Date Filing Date
IN680DEN2012 IN2012DN00680A (en) 2009-07-16 2012-01-23

Country Status (4)

Country Link
US (1) US8711769B2 (en)
EP (1) EP2454836B1 (en)
IN (1) IN2012DN00680A (en)
WO (1) WO2011007334A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8605838B2 (en) 2010-09-16 2013-12-10 Telefonaktiebolaget L M Ericsson (Publ) Interferer parameter estimation method and apparatus
US9276729B2 (en) * 2012-12-07 2016-03-01 Intel Deutschland Gmbh Determination of a noise and interference covariance measure
EP2787652B1 (en) * 2013-04-04 2018-08-01 Telefonaktiebolaget LM Ericsson (publ) Blind code allocation detection
CN106462568A (en) * 2014-02-13 2017-02-22 河谷控股Ip有限责任公司 Global visual vocabulary, systems and methods
DE102014103702B4 (en) * 2014-03-18 2017-08-03 Intel IP Corporation Method and apparatus for processing resource blocks
US9721186B2 (en) 2015-03-05 2017-08-01 Nant Holdings Ip, Llc Global signatures for large-scale image recognition
CA3074106A1 (en) * 2016-05-19 2017-11-23 Psip, Llc Methods for polyp detection
CN108832982A (en) * 2018-05-30 2018-11-16 毛述春 A kind of time-frequency distributions modulator approach for base station signal
GB2589884B (en) * 2019-12-11 2022-08-03 Thermo Fisher Scient Bremen Gmbh Processing optical spectra
CN111541511B (en) * 2020-04-20 2022-08-16 中国人民解放军海军工程大学 Communication interference signal identification method based on target detection in complex electromagnetic environment
CN119227467B (en) * 2024-11-29 2025-03-21 北京炎黄国芯科技有限公司 A method and system for suppressing electromagnetic interference of a chip

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6671340B1 (en) * 2000-06-15 2003-12-30 Ibiquity Digital Corporation Method and apparatus for reduction of interference in FM in-band on-channel digital audio broadcasting receivers
US6947748B2 (en) * 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
RU2377737C2 (en) * 2004-07-20 2009-12-27 Квэлкомм Инкорпорейтед Method and apparatus for encoder assisted frame rate up conversion (ea-fruc) for video compression
US20060250939A1 (en) * 2005-03-28 2006-11-09 Wang Michael M Optimal timing and frequency acquisition for OFDM systems
FI20050484A0 (en) * 2005-05-06 2005-05-06 Nokia Corp Control method of interference, network elements, apparatus, computer program product and computer program distribution medium
FR2891674B1 (en) * 2005-09-30 2007-12-21 Radiotelephone Sfr METHOD AND SYSTEM FOR AUTOMATIC DELAY PLANNING OF EMISSION TIMES OF TRANSMITTERS OF SYNCHRONOUS DIFFUSION NETWORK IN TIME AND FREQUENCY
US7680457B2 (en) * 2005-10-18 2010-03-16 Cisco Technology, Inc. Method and system for collaborated beamforming for reducing interference
WO2008060203A1 (en) * 2006-11-13 2008-05-22 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for pilot pattern based control signalling in mimo systems
WO2009059816A1 (en) * 2007-11-06 2009-05-14 Telefonaktiebolaget L M Ericsson (Publ) Methods and arrangements in a mobile telecommunications system

Also Published As

Publication number Publication date
EP2454836B1 (en) 2013-06-12
US8711769B2 (en) 2014-04-29
WO2011007334A3 (en) 2011-04-28
US20110013556A1 (en) 2011-01-20
WO2011007334A2 (en) 2011-01-20
EP2454836A2 (en) 2012-05-23

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