AR008085A1 - Metodo y aparato para mitigar efectos de distorsion para aumentar la determinacion del grado de utilizacion de senal - Google Patents

Metodo y aparato para mitigar efectos de distorsion para aumentar la determinacion del grado de utilizacion de senal

Info

Publication number
AR008085A1
AR008085A1 ARP970103366A ARP970103366A AR008085A1 AR 008085 A1 AR008085 A1 AR 008085A1 AR P970103366 A ARP970103366 A AR P970103366A AR P970103366 A ARP970103366 A AR P970103366A AR 008085 A1 AR008085 A1 AR 008085A1
Authority
AR
Argentina
Prior art keywords
estimate
component
degree
determination
signal
Prior art date
Application number
ARP970103366A
Other languages
English (en)
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of AR008085A1 publication Critical patent/AR008085A1/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/02—Details
    • H03D1/04—Modifications of demodulators to reduce interference by undesired signals
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Un sistema de comunicación (100) emplea un método y aparato para mitigar los efectos de la distorsión y aumentar las determinaciones de grado deutilización de senal en un receptor (102). El receptor recibe una senal de información discreta que incluye una corriente de símbolos de información. Cadasímbolo de información (124) de la corriente incluye dos componentes: un componente deseado y un componente no deseado que incluye interferencia ydistorsión. El receptor determina una estimación (126) del componente deseado de un símbolo de información y una estimación (128) del componente no deseadodel símbolo de información en base al símbolo de información mismo y su estimación de componente deseado. La estimación de componente no deseado semultiplica luego por un factor de escala (132) que se obtiene en base a la estimación de componente deseado. Una determinación ampliada del grado deutilización de senal (136) para el símbolo recibido se determina finalmenteen base a la estimación de componente no deseado (134). De esta manera, ladeterminación de grado de utilización de senal aumentada es una función sólo de la interferencia, casi exclusiva de la distorsión.
ARP970103366A 1996-07-26 1997-07-24 Metodo y aparato para mitigar efectos de distorsion para aumentar la determinacion del grado de utilizacion de senal AR008085A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/690,291 US5812600A (en) 1996-07-26 1996-07-26 Method and apparatus for mitigating distortion effects in the determination of signal usability

Publications (1)

Publication Number Publication Date
AR008085A1 true AR008085A1 (es) 1999-12-09

Family

ID=24771889

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP970103366A AR008085A1 (es) 1996-07-26 1997-07-24 Metodo y aparato para mitigar efectos de distorsion para aumentar la determinacion del grado de utilizacion de senal

Country Status (8)

Country Link
US (1) US5812600A (es)
JP (1) JP3902792B2 (es)
KR (1) KR100415359B1 (es)
AR (1) AR008085A1 (es)
AU (1) AU3482397A (es)
BR (1) BR9706547A (es)
ID (1) ID20412A (es)
WO (1) WO1998005117A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002715A (en) * 1996-07-11 1999-12-14 Motorola, Inc. Method for a receiver unit to determine a quality value for a received signal
US5974100A (en) * 1997-11-26 1999-10-26 Motorola, Inc. Method and apparatus in a communication receiver for compensating for channel amplitude and phase distortion
US6125272A (en) * 1998-09-25 2000-09-26 Motorola, Inc. Method and apparatus providing improved intermodulation distortion protection
US6333947B1 (en) * 1998-11-25 2001-12-25 Nortel Networks Limited Interference cancellation system and method and CDMA receiver including an interference cancellation circuit
US6680727B2 (en) * 2000-10-17 2004-01-20 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a CDMA communication system
US7190749B2 (en) * 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US8611311B2 (en) * 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7672359B2 (en) * 2004-01-28 2010-03-02 Andrew Llc Spread-spectrum receivers with extended dynamic range
US8422955B2 (en) * 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US8442441B2 (en) 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
US8099123B2 (en) * 2004-12-23 2012-01-17 Qualcomm Incorporated Adaptation of transmit subchannel gains in a system with interference cancellation
US8406695B2 (en) * 2004-12-23 2013-03-26 Qualcomm Incorporated Joint interference cancellation of pilot, overhead and traffic channels
US8472877B2 (en) * 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US8385388B2 (en) 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
US8144814B2 (en) * 2006-05-22 2012-03-27 Qualcomm Incorporated Signal quality estimator
US8260145B2 (en) * 2008-03-12 2012-09-04 Deepnarayan Gupta Digital radio frequency tranceiver system and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL211585A (es) * 1956-10-20
US5105435A (en) * 1990-12-21 1992-04-14 Motorola, Inc. Method and apparatus for cancelling spread-spectrum noise
US5440582A (en) * 1993-05-28 1995-08-08 Motorola, Inc. Method and apparatus for determining signal usability
US5406588A (en) * 1993-05-28 1995-04-11 Motorola, Inc. Method and apparatus for mitigating distortion effects in the determination of signal usability
US5396656A (en) * 1993-09-02 1995-03-07 Motorola, Inc. Method for determining desired components of quadrature modulated signals
US5652541A (en) * 1993-11-23 1997-07-29 Motorola, Inc. Data demodulator employing decision feedback for reference parameter recovery and method used therin
JP3325735B2 (ja) * 1995-01-31 2002-09-17 松下電器産業株式会社 データ受信装置

Also Published As

Publication number Publication date
KR19990063772A (ko) 1999-07-26
JP2000500950A (ja) 2000-01-25
KR100415359B1 (ko) 2004-06-05
AU3482397A (en) 1998-02-20
WO1998005117A1 (en) 1998-02-05
ID20412A (id) 1998-12-10
BR9706547A (pt) 1999-07-20
JP3902792B2 (ja) 2007-04-11
US5812600A (en) 1998-09-22

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