BR0010011A - Método e equipamento para estimar condições de canal de sinais recebidos, meio legìvel por computador, bem como, equipamento para receber sinais de comunicação - Google Patents

Método e equipamento para estimar condições de canal de sinais recebidos, meio legìvel por computador, bem como, equipamento para receber sinais de comunicação

Info

Publication number
BR0010011A
BR0010011A BR0010011-0A BR0010011A BR0010011A BR 0010011 A BR0010011 A BR 0010011A BR 0010011 A BR0010011 A BR 0010011A BR 0010011 A BR0010011 A BR 0010011A
Authority
BR
Brazil
Prior art keywords
equipment
well
computer readable
channel conditions
receiving communication
Prior art date
Application number
BR0010011-0A
Other languages
English (en)
Inventor
Jack M Holtzman
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 BR0010011A publication Critical patent/BR0010011A/pt

Links

Classifications

    • 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
    • H04L1/0059—Convolutional codes
    • 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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transceivers (AREA)
  • Error Detection And Correction (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA ESTIMAR CONDIçõES DE CANAL DE SINAIS RECEBIDOS, MEIO LEGìVEL POR COMPUTADOR, BEM COMO, EQUIPAMENTO PARA RECEBER SINAIS DE COMUNICAçãO". Um método e o correspondente equipamento estimam separadamente a amplitude do sinal e o ruído nos sinais recebidos, em particular símbolos codificados pelo uso de códigos turbo. No entanto, o método e o equipamento podem ser aplicados a tal estimativa em sistemas sem fio de controle de potência (sistemas CDMA) (100) , outros esquemas de codificação concatenada, etc. Um método e um equipamento inicialmente estimam o sinal e o ruído separadamente, no sinal recebido, por exemplo pelo uso de técnicas de ajuste a curvas. A seguir, é provida uma estimativa mais refinada pelo uso da amplitude de símbolos piloto recebidos ou pelo uso de uma estimativa do ruído dos símbolos piloto recebidos.
BR0010011-0A 1999-04-29 2000-05-01 Método e equipamento para estimar condições de canal de sinais recebidos, meio legìvel por computador, bem como, equipamento para receber sinais de comunicação BR0010011A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/301,813 US6393257B1 (en) 1999-04-29 1999-04-29 Wireless communications receiver and decoder for receiving encoded transmissions, such as transmissions using turbo codes, and estimating channel conditions
PCT/US2000/012028 WO2000067439A1 (en) 1999-04-29 2000-05-01 Estimation method, receiver and decoder, of channel conditions in wireless communications

Publications (1)

Publication Number Publication Date
BR0010011A true BR0010011A (pt) 2004-06-29

Family

ID=23165004

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0010011-0A BR0010011A (pt) 1999-04-29 2000-05-01 Método e equipamento para estimar condições de canal de sinais recebidos, meio legìvel por computador, bem como, equipamento para receber sinais de comunicação

Country Status (11)

Country Link
US (1) US6393257B1 (pt)
EP (1) EP1173959B1 (pt)
JP (1) JP2003514408A (pt)
KR (1) KR100748286B1 (pt)
CN (1) CN1238999C (pt)
AT (1) ATE365414T1 (pt)
AU (1) AU4695200A (pt)
BR (1) BR0010011A (pt)
DE (1) DE60035269T2 (pt)
HK (1) HK1043894A1 (pt)
WO (1) WO2000067439A1 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3535427B2 (ja) * 1999-11-25 2004-06-07 松下電器産業株式会社 無線通信装置
US6898254B2 (en) * 2000-01-31 2005-05-24 Texas Instruments Incorporated Turbo decoder stopping criterion improvement
US6879648B2 (en) * 2000-01-31 2005-04-12 Texas Instruments Incorporated Turbo decoder stopping based on mean and variance of extrinsics
US20020168033A1 (en) * 2000-02-15 2002-11-14 Hiroshi Suzuki Turbo decoder
KR100493150B1 (ko) * 2000-04-10 2005-06-02 삼성전자주식회사 이동통신을 위한 폐루프 전송 다이버시티의 최적 가중치탐색장치 및 방법
US6952561B1 (en) * 2000-08-31 2005-10-04 Lucent Technologies Inc. Enhanced metric for bit detection on fading channels with unknown statistics
US7099334B2 (en) * 2001-03-29 2006-08-29 Nortel Networks Limited ATM over MPLS connection establishment mechanism
US7184497B2 (en) * 2001-05-04 2007-02-27 Lucent Technologies Inc. Method of estimating a signal-to-interference+noise ratio (SINR)
US7093180B2 (en) * 2002-06-28 2006-08-15 Interdigital Technology Corporation Fast H-ARQ acknowledgement generation method using a stopping rule for turbo decoding
KR100686410B1 (ko) * 2002-08-01 2007-02-28 삼성전자주식회사 이동 통신 시스템에서 트래픽 채널과 파일럿 채널간전력비 검출 장치 및 방법
US20040209585A1 (en) * 2003-04-17 2004-10-21 Motorola, Inc. Method and apparatus for determining an interference level on a fading channel
KR100566210B1 (ko) * 2003-09-22 2006-03-29 삼성전자주식회사 무선 통신 시스템에서 채널 할당 장치 및 방법
US7362801B2 (en) * 2003-12-18 2008-04-22 Lsi Logic Corporation Method for accurate estimation of noise for data modems
CN100391107C (zh) * 2003-12-25 2008-05-28 上海贝尔阿尔卡特股份有限公司 信道编码方法和装置以及信道译码方法和装置
US7672383B2 (en) * 2004-09-17 2010-03-02 Qualcomm Incorporated Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling
UA88328C2 (ru) * 2004-09-17 2009-10-12 Квелкомм Инкорпорейтед Оценка дисперсии шума в беспроводной связи для объединения разнесения и масштабирования в соответствии с логарифмической вероятностью
US7684473B2 (en) * 2005-06-01 2010-03-23 Qualcomm Incorporated Receiver for wireless communication network with extended range
TW200816651A (en) * 2006-09-25 2008-04-01 Sunplus Technology Co Ltd Decoding method and system of real-time wireless channel estimation
CN101179354B (zh) * 2006-11-09 2011-11-16 凌阳科技股份有限公司 一种无线通道即时估测的解码方法及系统
CN103873067B (zh) * 2014-02-26 2017-04-05 东南大学 一种用于脉冲干扰信道下Turbo码的译码方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JPH1117760A (ja) * 1997-06-24 1999-01-22 Sony Corp 受信装置及び送受信装置並びに通信方法
DE19736676C1 (de) * 1997-08-22 1998-12-10 Siemens Ag Verfahren zur Paketübertragung mit einem ARQ-Protokoll auf Übertragungskanälen in einem digitalen Übertragungssystem

Also Published As

Publication number Publication date
US6393257B1 (en) 2002-05-21
DE60035269D1 (de) 2007-08-02
DE60035269T2 (de) 2008-02-21
WO2000067439A1 (en) 2000-11-09
EP1173959A1 (en) 2002-01-23
HK1043894A1 (en) 2002-09-27
CN1349699A (zh) 2002-05-15
KR100748286B1 (ko) 2007-08-09
KR20020038577A (ko) 2002-05-23
AU4695200A (en) 2000-11-17
ATE365414T1 (de) 2007-07-15
EP1173959B1 (en) 2007-06-20
CN1238999C (zh) 2006-01-25
JP2003514408A (ja) 2003-04-15

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 12A ANUIDADE.

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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2156 DE 02/05/2012.