IN2014DN09079A - - Google Patents

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Publication number
IN2014DN09079A
IN2014DN09079A IN9079DEN2014A IN2014DN09079A IN 2014DN09079 A IN2014DN09079 A IN 2014DN09079A IN 9079DEN2014 A IN9079DEN2014 A IN 9079DEN2014A IN 2014DN09079 A IN2014DN09079 A IN 2014DN09079A
Authority
IN
India
Prior art keywords
signal
constant envelope
demodulator
envelope modulated
modulated interfering
Prior art date
Application number
Inventor
Dennis Hui
Ali Khayrallah
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 IN2014DN09079A publication Critical patent/IN2014DN09079A/en

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Classifications

    • 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
    • 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
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
    • 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)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)

Abstract

Embodiments of a receiver are disclosed that utilize enhanced metrics for demodulation and soft bit information generation in the presence of a non constant envelope modulated interfering signal. In general the receiver includes a downc onverter and a demodulator. The downconverter receives a radio frequency signal comprising a desired signal noise and a non constant envelope modulated interfering signal and do wneon verts the radio frequency signal to provide a downconveried signal The demodulator demodulates the do wncon verted signal based on a demodulation meiric that models the non constant envelope modulated interfering signal as a stationary non Gaussian random process with a probability distribution derived from a modulation constellation of a. modulation used for the non constant envelope modulated interfering signal. In one embodiment the demodulator outputs demodulated symbols in another embodiment the demodulator outputs soft bit information.
IN9079DEN2014 2012-03-30 2013-03-27 IN2014DN09079A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/434,955 US8649453B2 (en) 2012-03-30 2012-03-30 Enhanced metrics for demodulation and soft information generation in the presence of a non-constant envelope modulated interferer
PCT/IB2013/052471 WO2013144886A2 (en) 2012-03-30 2013-03-27 Enhanced metrics for demodulation and soft information generation in the presence of a non-constant envelope modulated interferer

Publications (1)

Publication Number Publication Date
IN2014DN09079A true IN2014DN09079A (en) 2015-05-22

Family

ID=48428551

Family Applications (1)

Application Number Title Priority Date Filing Date
IN9079DEN2014 IN2014DN09079A (en) 2012-03-30 2013-03-27

Country Status (9)

Country Link
US (1) US8649453B2 (en)
EP (1) EP2832063B1 (en)
DK (1) DK2832063T3 (en)
ES (1) ES2768288T3 (en)
HU (1) HUE046845T2 (en)
IN (1) IN2014DN09079A (en)
PL (1) PL2832063T3 (en)
PT (1) PT2832063T (en)
WO (1) WO2013144886A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102091855B1 (en) * 2013-03-14 2020-03-20 삼성전자주식회사 Apparatus and method for symbol mapping in wireless communication system using multi tone fequency qudrature amplitude modulation
US9762351B2 (en) * 2013-03-20 2017-09-12 Zte (Usa) Inc. Statistics adaptive soft decision forward error correction in digital communication
US9329929B2 (en) 2013-03-20 2016-05-03 Zte (Usa) Inc. Soft maximum likelihood sequence estimation in digital communication
EP2975787B1 (en) 2014-07-16 2018-10-03 ZTE Corporation Adaptive post digital filter and inter-symbol interference equalizer for optical communication
US9819419B2 (en) 2014-10-07 2017-11-14 Zte Corporation Maximum likelihood sequence estimation of Quadrature Amplitude Modulated signals
US9497048B2 (en) * 2015-01-23 2016-11-15 Huawei Technologies Co., Ltd. Method and apparatus with improved estimation accuracy and robustness for fine frequency offset estimation in coherent receivers
KR101719059B1 (en) * 2015-06-19 2017-04-04 한국과학기술원 method and apparatus of modulation and demodulation for beam shift keying based on beam-space MIMO systems
US9762297B2 (en) 2015-01-26 2017-09-12 Korea Advanced Institute Of Science And Technology Beam modulation and demodulation method and apparatus based on beam-space multiple input multiple output (MIMO) antenna system
TWI607643B (en) * 2016-02-15 2017-12-01 瑞昱半導體股份有限公司 Apparatus and method for processing soft information
CN110380999B (en) * 2018-04-12 2020-10-09 华为技术有限公司 Probability non-uniform modulation data transmission method and device
US11418279B1 (en) * 2021-06-14 2022-08-16 Ultralogic 6G, Llc Recovery and demodulation of collided 5G/6G message elements
US20240113818A1 (en) * 2022-10-03 2024-04-04 Telefonaktiebolaget Lm Ericsson (Publ) Waveform for wireless signalling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6975582B1 (en) * 1995-07-12 2005-12-13 Ericsson Inc. Dual mode satellite/cellular terminal
US6317470B1 (en) * 1998-09-15 2001-11-13 Ibiquity Digital Corporation Adaptive weighting method for orthogonal frequency division multiplexed soft symbols using channel state information estimates
US7254192B2 (en) * 2002-07-12 2007-08-07 Texas Instruments Incorporated Iterative detection in MIMO systems
US7088978B2 (en) 2003-02-07 2006-08-08 Ericsson Inc. System and method for interference cancellation in a wireless communication receiver
US8081929B2 (en) * 2008-06-05 2011-12-20 Broadcom Corporation Method and system for optimal frequency planning for an integrated communication system with multiple receivers

Also Published As

Publication number Publication date
EP2832063A2 (en) 2015-02-04
HUE046845T2 (en) 2020-03-30
US8649453B2 (en) 2014-02-11
PL2832063T3 (en) 2020-04-30
PT2832063T (en) 2020-01-10
WO2013144886A2 (en) 2013-10-03
WO2013144886A3 (en) 2013-11-28
US20130259164A1 (en) 2013-10-03
ES2768288T3 (en) 2020-06-22
DK2832063T3 (en) 2020-03-09
EP2832063B1 (en) 2019-12-18

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