MX2007012323A - Metodo y aparato para cancelar la interferencia de senales de alta velocidad de datos, de alta potencia. - Google Patents

Metodo y aparato para cancelar la interferencia de senales de alta velocidad de datos, de alta potencia.

Info

Publication number
MX2007012323A
MX2007012323A MX2007012323A MX2007012323A MX2007012323A MX 2007012323 A MX2007012323 A MX 2007012323A MX 2007012323 A MX2007012323 A MX 2007012323A MX 2007012323 A MX2007012323 A MX 2007012323A MX 2007012323 A MX2007012323 A MX 2007012323A
Authority
MX
Mexico
Prior art keywords
high power
signal
power signal
contribution
received
Prior art date
Application number
MX2007012323A
Other languages
English (en)
Inventor
Gregory E Bottomley
Ali S Khayrallah
Yi-Pin Eric Wang
Carmela Cozzo
Hakan B Eriksson
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 MX2007012323A publication Critical patent/MX2007012323A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709727—GRAKE type RAKE receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Un metodo y un aparato en un receptor de radio, para cancelar la interferencia de una senal de alta velocidad de datos, de alta energia, recibida en una senal combinada que incluye una contribucion de la senal de alta energia y una contribucion de una senal de baja potencia. Se determina primero (43) si la senal de alta potencia se recibio correctamente. una suma de verificacion de CRC se puede usar para determinar si la senal de alta potencia se recibio con una buena fiabilidad. Por lo tanto, la contribucion de la senal de alta potencia se elimina (44) de la senal recibida, solamente si la senal de alta potencia se recibio de manera correcta. La contribucion de la senal de alta potencia se puede eliminar por sustraccion rigida (163) de la contribucion de la senal de alta potencia de la senal recibida si todos los bitios de la suma de verificacion son correctos, y por sustraccion flexible de la contribucion de la senal de potencia mas alta de la senal recibida si la mayoria, pero no todos los bitios en la suma de verificacion son correctos.
MX2007012323A 2005-04-22 2006-04-19 Metodo y aparato para cancelar la interferencia de senales de alta velocidad de datos, de alta potencia. MX2007012323A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/112,578 US7389099B2 (en) 2005-04-22 2005-04-22 Method and apparatus for canceling interference from high power, high data rate signals
PCT/SE2006/050079 WO2006112790A2 (en) 2005-04-22 2006-04-19 Method and apparatus for canceling interference from high power, high data rate signals

Publications (1)

Publication Number Publication Date
MX2007012323A true MX2007012323A (es) 2007-12-05

Family

ID=37115591

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007012323A MX2007012323A (es) 2005-04-22 2006-04-19 Metodo y aparato para cancelar la interferencia de senales de alta velocidad de datos, de alta potencia.

Country Status (5)

Country Link
US (1) US7389099B2 (es)
EP (1) EP1872484A4 (es)
JP (1) JP5215171B2 (es)
MX (1) MX2007012323A (es)
WO (1) WO2006112790A2 (es)

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US20070025345A1 (en) * 2005-07-27 2007-02-01 Bachl Rainer W Method of increasing the capacity of enhanced data channel on uplink in a wireless communications systems
US20070201569A1 (en) * 2006-02-08 2007-08-30 Nokia Corporation Apparatus, method and computer program product providing joint detection for increasing throughout with data in uplink that multiplexes users using codes and that multiplexes users using frequency multiplexing
US7701999B1 (en) * 2006-05-02 2010-04-20 L3 Corrections Corporation Non-coherent multiuser receiver and method for aiding carrier acquisition in a spread spectrum system
WO2008051128A1 (en) * 2006-10-27 2008-05-02 Telefonaktiebolaget Lm Ericsson (Publ) A mehtod for simplifying the calculatinos for pre-whitening in a g-rake receiver,
JP2008211539A (ja) * 2007-02-27 2008-09-11 Brother Ind Ltd 通信装置および通信システム
KR101457690B1 (ko) * 2008-03-05 2014-11-04 삼성전자주식회사 통신 시스템에서 간섭 신호를 제거하기 위한 수신 장치 및 방법
US20090323777A1 (en) * 2008-06-26 2009-12-31 Yi-Pin Eric Wang Methods and Apparatus for Sharing Signal Correlation Data in a Receiver
US8238499B2 (en) * 2008-08-29 2012-08-07 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for low-complexity interference cancellation in communication signal processing
US8238482B2 (en) * 2008-10-14 2012-08-07 Apple Inc. Techniques for improving channel estimation and tracking in a wireless communication system
US20100329398A1 (en) * 2009-06-30 2010-12-30 Rao Anil M Receiver and method for performing interference cancellation
US8406354B2 (en) * 2009-07-01 2013-03-26 Telefonaktiebolaget L M Ericsson (Publ) Interference cancellation in a multi-user receiver
US8374219B2 (en) * 2009-11-23 2013-02-12 Telefonaktiebolaget L M Ericsson (Publ) Blind spreading factor detection for wideband code division multiple access (WCDMA)
US20130003671A1 (en) * 2011-06-28 2013-01-03 Qualcomm Incorporated Multi-radio coexistence
CN105591994B (zh) * 2014-10-21 2019-08-02 中兴通讯股份有限公司 码分多址接入的多用户通信方法及装置
MX2020007854A (es) * 2018-01-31 2020-09-03 Sony Corp Aparato de transmision y metodo de transmision, aparato de recepcion y metodo de recepcion, y sistema de comunicacion.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6693982B1 (en) 1997-10-06 2004-02-17 At&T Corp. Minimum mean squared error approach to interference cancellation and maximum likelihood decoding of space-time block codes
US6188718B1 (en) * 1998-08-21 2001-02-13 Lucent Technologies Inc. Methods and apparatus for reducing cochannel interference in a mixed-rate communication system
JP4141550B2 (ja) * 1998-11-06 2008-08-27 三菱電機株式会社 マルチユーザ受信機
FI106492B (fi) * 1999-03-09 2001-02-15 Nokia Mobile Phones Ltd Häiriönpoistomenetelmä
JP2001024554A (ja) * 1999-07-02 2001-01-26 Fujitsu Ltd Ｃｄｍａ受信装置の干渉キャンセラ装置
US6404760B1 (en) 1999-07-19 2002-06-11 Qualcomm Incorporated CDMA multiple access interference cancellation using signal estimation
US6937592B1 (en) * 2000-09-01 2005-08-30 Intel Corporation Wireless communications system that supports multiple modes of operation
US6680727B2 (en) 2000-10-17 2004-01-20 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a CDMA communication system
US6788733B1 (en) * 2000-11-09 2004-09-07 Qualcomm, Incorporated Method and apparatus for interference cancellation in a communication system
US7471932B2 (en) * 2003-08-11 2008-12-30 Nortel Networks Limited System and method for embedding OFDM in CDMA systems
US7269205B2 (en) 2003-09-26 2007-09-11 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for signal demodulation
US8099123B2 (en) * 2004-12-23 2012-01-17 Qualcomm Incorporated Adaptation of transmit subchannel gains in a system with interference cancellation
US8422955B2 (en) 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation

Also Published As

Publication number Publication date
EP1872484A2 (en) 2008-01-02
US7389099B2 (en) 2008-06-17
WO2006112790A3 (en) 2006-11-30
JP5215171B2 (ja) 2013-06-19
EP1872484A4 (en) 2013-04-24
US20060240794A1 (en) 2006-10-26
WO2006112790A2 (en) 2006-10-26
JP2008537436A (ja) 2008-09-11

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