BR0115217A - Método e equipamento para cancelamento de interferência em um receptor com espalhamento espectral - Google Patents

Método e equipamento para cancelamento de interferência em um receptor com espalhamento espectral

Info

Publication number
BR0115217A
BR0115217A BR0115217-3A BR0115217A BR0115217A BR 0115217 A BR0115217 A BR 0115217A BR 0115217 A BR0115217 A BR 0115217A BR 0115217 A BR0115217 A BR 0115217A
Authority
BR
Brazil
Prior art keywords
samples
received
recoded
scattered
equipment
Prior art date
Application number
BR0115217-3A
Other languages
English (en)
Inventor
Keum-Chan Whang
Hyuck-Chan Kwon
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0115217A publication Critical patent/BR0115217A/pt

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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0066—Parallel concatenated codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA CANCELAMENTO DE INTERFERêNCIA EM UM RECEPTOR COM ESPALHAMENTO ESPECTRAL". Um método e um equipamento novos e aperfeiçoados em um sistema de comunicação (100) provêm um processamento eficiente de sinais recebidos. O método e o equipamento incluem converter um sinal recebido codificado e com espalhamento espectral em amostras recebidas, determinar uma primeira estimativa de canal com base em um primeiro conjunto de amostras de sinal piloto. o primeiro conjunto de amostras de sinal piloto é incluído nas amostras recebidas. As amostras recebidas são passadas através de um processo de correlação e decodificação de acordo com a primeira estimativa de canal de modo a serem produzidas amostras recebidas decodificadas. As amostras recebidas decodificadas são recodificadas e re-espalhadas de modo a serem produzidas amostras recodificadas e re-espalhadas. As amostras recodificadas e re-espalhadas são modificadas com base na primeira estimativa de canal, de modo a serem produzidas amostras recodificadas e re-espalhadas com modificação de canal. As amostras recebidas passam através de um cancelamento de interferência que emprega as amostras de canal recodificadas e re-espalhadas com modificação de modo a ser produzido um novo conjunto de amostras recebidas.
BR0115217-3A 2000-11-09 2001-11-05 Método e equipamento para cancelamento de interferência em um receptor com espalhamento espectral BR0115217A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/711,108 US6788733B1 (en) 2000-11-09 2000-11-09 Method and apparatus for interference cancellation in a communication system
PCT/US2001/047156 WO2002039597A2 (en) 2000-11-09 2001-11-05 Method and apparatus for interference cancellation in a spread spectrum receiver

Publications (1)

Publication Number Publication Date
BR0115217A true BR0115217A (pt) 2005-04-19

Family

ID=24856799

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0115217-3A BR0115217A (pt) 2000-11-09 2001-11-05 Método e equipamento para cancelamento de interferência em um receptor com espalhamento espectral

Country Status (9)

Country Link
US (1) US6788733B1 (pt)
EP (1) EP1336255A2 (pt)
JP (1) JP3996507B2 (pt)
KR (1) KR20030048130A (pt)
CN (1) CN1554156B (pt)
AU (1) AU2002227299A1 (pt)
BR (1) BR0115217A (pt)
TW (1) TW527791B (pt)
WO (1) WO2002039597A2 (pt)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4429533B2 (ja) * 2001-01-29 2010-03-10 三星電子株式会社 周波数変換器
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
US20030110052A1 (en) * 2001-10-30 2003-06-12 Procorp Usa Inc. Ribbon method for displaying milk and other products
JP2003152553A (ja) * 2001-11-13 2003-05-23 Ntt Docomo Inc 復号方法及び通信装置
AU2003903826A0 (en) 2003-07-24 2003-08-07 University Of South Australia An ofdm receiver structure
KR100651434B1 (ko) * 2002-10-05 2006-11-28 삼성전자주식회사 패킷 데이터 통신 시스템 수신기에서의 간섭신호 제거장치 및 방법
US8422955B2 (en) * 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for 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
US8442441B2 (en) * 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
CN101120514B (zh) * 2004-12-23 2012-03-21 高通股份有限公司 无线通信方法、基站及无线通信装置
US7389099B2 (en) * 2005-04-22 2008-06-17 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for canceling interference from high power, high data rate signals
US7457588B2 (en) * 2005-08-01 2008-11-25 Motorola, Inc. Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network
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
US7903028B2 (en) * 2006-12-18 2011-03-08 Sirf Technology Holdings, Inc. Ephemeris download from weak signals
JPWO2009157184A1 (ja) * 2008-06-24 2011-12-08 パナソニック株式会社 Ｍｉｍｏ送信装置、ｍｉｍｏ受信装置、ｍｉｍｏ伝送信号形成方法、及びｍｉｍｏ伝送信号分離方法
CN101677478B (zh) * 2008-09-18 2012-02-22 王智 一种消除临近基站干扰的***、发射、接收装置及其方法
US20100278167A1 (en) * 2009-05-04 2010-11-04 Qualcomm Incorporated Method and system for data-aided channel estimation
US8478820B2 (en) 2009-08-26 2013-07-02 Qualcomm Incorporated Methods and systems for service discovery management in peer-to-peer networks
US8478776B2 (en) 2009-10-30 2013-07-02 Qualcomm Incorporated Methods and systems for peer-to-peer network discovery using multi-user diversity
US8825818B2 (en) 2009-11-10 2014-09-02 Qualcomm Incorporated Host initiated connection to a device
US8730928B2 (en) 2010-02-23 2014-05-20 Qualcomm Incorporated Enhancements for increased spatial reuse in ad-hoc networks
EP2634923A1 (en) 2012-02-29 2013-09-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Interference Mitigation in a Communication System

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137843A (en) * 1995-02-24 2000-10-24 Ericsson Inc. Methods and apparatus for canceling adjacent channel signals in digital communications systems
US5675344A (en) * 1996-06-28 1997-10-07 Motorola, Inc. Method and apparatus for locating a mobile station in a spread spectrum communication system
US6175587B1 (en) * 1997-12-30 2001-01-16 Motorola, Inc. Communication device and method for interference suppression in a DS-CDMA system
EP0993127A1 (en) 1998-10-06 2000-04-12 Texas Instruments Incorporated Method and apparatus using Walsh-Hadamard transformation for forward link multiuser detection in CDMA systems
US6452917B1 (en) * 1999-04-08 2002-09-17 Qualcomm Incorporated Channel estimation in a CDMA wireless communication system
US6487259B1 (en) * 1999-08-24 2002-11-26 Motorola, Inc. Partially-parrallel trellis decoder apparatus and method

Also Published As

Publication number Publication date
US6788733B1 (en) 2004-09-07
WO2002039597A2 (en) 2002-05-16
EP1336255A2 (en) 2003-08-20
JP2004535083A (ja) 2004-11-18
WO2002039597A3 (en) 2002-10-10
CN1554156A (zh) 2004-12-08
TW527791B (en) 2003-04-11
CN1554156B (zh) 2011-01-19
JP3996507B2 (ja) 2007-10-24
KR20030048130A (ko) 2003-06-18
AU2002227299A1 (en) 2002-05-21

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B08I Publication cancelled [chapter 8.9 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.