BR9913194A - Receptor, e, processo de receber no mìnimo um sinal que corresponde a uma pluralidade de sinais transmitidos - Google Patents

Receptor, e, processo de receber no mìnimo um sinal que corresponde a uma pluralidade de sinais transmitidos

Info

Publication number
BR9913194A
BR9913194A BR9913194-3A BR9913194A BR9913194A BR 9913194 A BR9913194 A BR 9913194A BR 9913194 A BR9913194 A BR 9913194A BR 9913194 A BR9913194 A BR 9913194A
Authority
BR
Brazil
Prior art keywords
channel estimates
received signal
timings
corresponds
transmitted signals
Prior art date
Application number
BR9913194-3A
Other languages
English (en)
Inventor
Abdulrauf Halfeez
Karl J Molnar
Gregory E Bottomley
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Publication of BR9913194A publication Critical patent/BR9913194A/pt

Links

Classifications

    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03337—Arrangements involving per-survivor processing
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)

Abstract

"RECEPTOR, E, PROCESSO DE RECEBER NO MINIMO UM SINAL QUE CORRESPONDE A UMA PLURALIDADE DE SINAIS TRANSMITIDOS". Uma pluralidade de temporizações são estimadas para um sinal recebido, no qual a pluralidade de temporizações corresponde a uma pluralidade de sinais transmitidos. O sinal recebido é então amostrado de acordo com a pluralidade de temporizações para produzir uma pluralidade de correntes de amostra a partir do sinal recebido. Estimativas de canal são produzidas para a pluralidade de sinais transmitidos e métricas são computadas utilizando as correntes de amostra e as estimativas de canal. A simbologia de informação que corresponde aos sinais transmitidos é detectada por meio da utilização das métricas. Consequentemente, utilizando temporizações múltiplas para um sinal recebido ao invés de utilizar uma temporização comum, a quantidade de derivações de canal que são utilizadas podem ser reduzidas e a precisão da detecção de símbolo pode ser aumentada. As estimativas de canal podem ser produzidas gerando informação em forma de pulso e produzindo estimativas de canal para os múltiplos sinais transmitidos utilizando o sinal recebido e a informação em forma de pulso. Estimativas de canal podem ser produzidas, as quais correspondem a uma pluralidade de hipóteses de seq³ência de símbolo. Estimativas de canal podem ser atualizadas utilizando um sinal de erro.
BR9913194-3A 1998-08-31 1999-08-03 Receptor, e, processo de receber no mìnimo um sinal que corresponde a uma pluralidade de sinais transmitidos BR9913194A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/143,821 US6304618B1 (en) 1998-08-31 1998-08-31 Methods and systems for reducing co-channel interference using multiple timings for a received signal
PCT/US1999/017808 WO2000013383A1 (en) 1998-08-31 1999-08-03 Methods and system for reducing co-channel interference using multiple sampling timings for a received signal

Publications (1)

Publication Number Publication Date
BR9913194A true BR9913194A (pt) 2001-05-15

Family

ID=22505808

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9913194-3A BR9913194A (pt) 1998-08-31 1999-08-03 Receptor, e, processo de receber no mìnimo um sinal que corresponde a uma pluralidade de sinais transmitidos

Country Status (8)

Country Link
US (1) US6304618B1 (pt)
EP (1) EP1110357B1 (pt)
CN (1) CN1132386C (pt)
AU (1) AU5340199A (pt)
BR (1) BR9913194A (pt)
EE (1) EE200100127A (pt)
HK (1) HK1040851B (pt)
WO (1) WO2000013383A1 (pt)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI982857A (fi) * 1998-12-31 2000-07-01 Nokia Networks Oy Vastaanottomenetelmä ja vastaanotin
US6574235B1 (en) 1999-08-12 2003-06-03 Ericsson Inc. Methods of receiving co-channel signals by channel separation and successive cancellation and related receivers
US6463105B1 (en) * 1999-09-13 2002-10-08 Ericsson Inc. Methods and systems for estimation of the carrier to interference ratio for a wireless communication channel
US6831944B1 (en) * 1999-09-14 2004-12-14 Interdigital Technology Corporation Reduced computation in joint detection
US6570910B1 (en) * 1999-10-25 2003-05-27 Ericsson Inc. Baseband processor with look-ahead parameter estimation capabilities
CN1108071C (zh) * 2000-04-11 2003-05-07 ***电信科学技术研究院 码分多址移动通信***中终端设备端的一种信号处理方法
US7268223B2 (en) 2000-09-22 2007-09-11 Wyeth Isolated nucleic acid molecules which encode a soluble IL-TIF receptor or binding protein which binds to IL-TIF/IL-22, and uses thereof
US6775340B1 (en) * 2000-10-13 2004-08-10 Ericsson Inc. Synchronization and channel estimation with extended pilot symbols
US6847688B1 (en) * 2000-10-30 2005-01-25 Ericsson Inc. Automatic frequency control systems and methods for joint demodulation
US6750818B2 (en) 2000-12-04 2004-06-15 Tensorcomm, Inc. Method and apparatus to compute the geolocation of a communication device using orthogonal projections
US6711219B2 (en) 2000-12-04 2004-03-23 Tensorcomm, Incorporated Interference cancellation in a signal
US7010069B2 (en) * 2000-12-04 2006-03-07 Trellisware Technologies, Inc. Method for co-channel interference identification and mitigation
US6856945B2 (en) * 2000-12-04 2005-02-15 Tensorcomm, Inc. Method and apparatus for implementing projections in singal processing applications
US20020114310A1 (en) * 2000-12-22 2002-08-22 Molnar Karl J. Methods, communication apparatus, and computer program products for detecting an information field in a signal by averaging symbol values across multiple time slot intervals
US6920191B2 (en) * 2001-02-02 2005-07-19 Telefonaktiebolaget Lm Ericsson (Publ) Estimation and compensation of the pulse-shape response in wireless terminals
US7142809B1 (en) 2001-02-27 2006-11-28 The Directv Group, Inc. Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use
US7206583B2 (en) 2001-05-15 2007-04-17 Telefonaktiebolaget L M Ericsson (Publ) Co-channel interference suppression by estimating the time of arrival (TOA)
ATE387068T1 (de) * 2001-05-15 2008-03-15 Ericsson Telefon Ab L M Unterdrückung der gleichkanalstorüng mittels schätzung der ankunftszeit
US7031411B2 (en) * 2001-09-19 2006-04-18 Telefonaktiebolaget L.M. Ericsson Methods and apparatus for canceling co-channel interference in a receiving system using spatio-temporal whitening
US7158559B2 (en) 2002-01-15 2007-01-02 Tensor Comm, Inc. Serial cancellation receiver design for a coded signal processing engine
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
WO2003041350A1 (en) * 2001-11-09 2003-05-15 Telefonaktiebolaget Lm Ericsson (Publ) Co-channel interference detector for cellular communications systems
WO2003044969A2 (en) * 2001-11-16 2003-05-30 Tensorcomm Incorporated Construction of an interference matrix for a coded signal processing engine
WO2005081438A1 (en) * 2001-11-19 2005-09-01 Tensorcomm, Incorporated Interference cancellation in a signal
US7085332B2 (en) * 2001-12-14 2006-08-01 Ericsson, Inc. Method and apparatus for two-user joint demodulation in a system having transmit diversity
US6714607B2 (en) * 2001-12-20 2004-03-30 Sbc Technology Resources, Inc. Joint demodulation using a viterbi equalizer having an adaptive total number of states
US7684525B2 (en) * 2002-01-09 2010-03-23 Nokia Corporation Method and receiver for reception of a composite signal
DE60232022D1 (de) * 2002-01-25 2009-05-28 Ericsson Telefon Ab L M Verfahren zur störungsquellenidentifikation
DE10220892A1 (de) * 2002-05-10 2003-12-18 Fraunhofer Ges Forschung Sendevorrichtung und Empfangsvorrichtung
US20030235243A1 (en) * 2002-06-25 2003-12-25 Shousheng He Method for windowed noise auto-correlation
US7190743B2 (en) * 2002-07-29 2007-03-13 Bae Systems Information And Electronic Systems Integration Inc. Method and apparatus for optimizing tree pruning in a multiuser detector
JP4433403B2 (ja) * 2002-09-06 2010-03-17 シチズンホールディングス株式会社 電波修正時計及びその制御方法
US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US8761321B2 (en) 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
EP1550233B1 (en) 2002-09-23 2012-11-07 Rambus Inc. Method and apparatus for selectively applying interference cancellation in spread spectrum systems
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
US7954127B2 (en) 2002-09-25 2011-05-31 The Directv Group, Inc. Direct broadcast signal distribution methods
US7200192B2 (en) * 2002-12-26 2007-04-03 Zydas Technology Corporation Method and apparatus for decoding orthogonal codes
US7327811B2 (en) * 2003-04-01 2008-02-05 Telefonaktiebolaget L M Ericsson Method and apparatus for facilitating signal discrimination in a wireless network by applying known frequency offsets
US7496164B1 (en) * 2003-05-02 2009-02-24 At&T Mobility Ii Llc Systems and methods for interference cancellation in a radio receiver system
EP1475933B1 (en) * 2003-05-09 2008-01-02 Siemens Aktiengesellschaft Method for interference cancellation using iterative semi-blind channel estimation
GB2407008B (en) * 2003-10-10 2006-01-18 Toshiba Res Europ Ltd A mimo communication system
DE10348205B4 (de) * 2003-10-16 2005-10-27 Infineon Technologies Ag Verfahren zur Kanalschätzung bei Verwendung verschiedener Modulationsverfahren innerhalb eines Signalintervalls
US20050095985A1 (en) * 2003-10-31 2005-05-05 Abdulrauf Hafeoz Method and apparatus for multi-user interference determination an rejection
US7450924B1 (en) * 2004-03-25 2008-11-11 At&T Mobility Ii Llc Interference cancellation and receive diversity for single-valued modulation receivers
CA2562549C (en) * 2004-04-12 2013-03-19 The Directv Group, Inc. Methods and apparatuses for minimizing co-channel interference
US7672285B2 (en) 2004-06-28 2010-03-02 Dtvg Licensing, Inc. Method and apparatus for minimizing co-channel interference by scrambling
US7161988B2 (en) * 2004-04-12 2007-01-09 The Directv Group, Inc. Method and apparatus for minimizing co-channel interference
US7830975B2 (en) * 2004-04-12 2010-11-09 Nokia Corporation I/Q MIMO detection for single antenna interference cancellation
KR100606113B1 (ko) * 2004-07-22 2006-07-28 삼성전자주식회사 빠른 레일리 페이딩 채널 환경의 이동통신 시스템에서최우 주파수 오프셋 추정 방법
US7643548B2 (en) * 2004-09-27 2010-01-05 Telefonaktiebolaget Lm Ericsson (Publ) Iterative forward-backward parameter estimation
US20060160516A1 (en) * 2005-01-14 2006-07-20 Dongsong Zeng Pulse shaping optimizer in UWB receiver
US7900230B2 (en) 2005-04-01 2011-03-01 The Directv Group, Inc. Intelligent two-way switching network
US8024759B2 (en) 2005-04-01 2011-09-20 The Directv Group, Inc. Backwards-compatible frequency translation module for satellite video delivery
US8621525B2 (en) 2005-04-01 2013-12-31 The Directv Group, Inc. Signal injection via power supply
US7945932B2 (en) 2005-04-01 2011-05-17 The Directv Group, Inc. Narrow bandwidth signal delivery system
US8549565B2 (en) 2005-04-01 2013-10-01 The Directv Group, Inc. Power balancing signal combiner
US7958531B2 (en) 2005-04-01 2011-06-07 The Directv Group, Inc. Automatic level control for incoming signals of different signal strengths
US7987486B2 (en) 2005-04-01 2011-07-26 The Directv Group, Inc. System architecture for control and signal distribution on coaxial cable
US7950038B2 (en) 2005-04-01 2011-05-24 The Directv Group, Inc. Transponder tuning and mapping
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US20070002980A1 (en) * 2005-06-29 2007-01-04 Eyal Krupka Method for timing and sequence hypotheses selection
US8019275B2 (en) 2005-10-12 2011-09-13 The Directv Group, Inc. Band upconverter approach to KA/KU signal distribution
US7991348B2 (en) 2005-10-12 2011-08-02 The Directv Group, Inc. Triple band combining approach to satellite signal distribution
KR100636373B1 (ko) * 2005-11-25 2006-10-19 한국전자통신연구원 다중생존경로 위상 오차 추정 장치 및 그를 이용한ｔｄｍａ 기반의 위성통신시스템
US8031794B2 (en) * 2006-05-09 2011-10-04 At&T Mobility Ii Llc Systems and methods for interference cancellation in a multiple antenna radio receiver system
US8719875B2 (en) 2006-11-06 2014-05-06 The Directv Group, Inc. Satellite television IP bitstream generator receiving unit
US8712318B2 (en) 2007-05-29 2014-04-29 The Directv Group, Inc. Integrated multi-sat LNB and frequency translation module
US8238813B1 (en) 2007-08-20 2012-08-07 The Directv Group, Inc. Computationally efficient design for broadcast satellite single wire and/or direct demod interface
US9942618B2 (en) 2007-10-31 2018-04-10 The Directv Group, Inc. SMATV headend using IP transport stream input and method for operating the same
US8229383B2 (en) 2009-01-06 2012-07-24 The Directv Group, Inc. Frequency drift estimation for low cost outdoor unit frequency conversions and system diagnostics
CN104159312B (zh) * 2013-05-14 2017-12-05 株式会社理光 分配无线信道的方法和***
US9369267B2 (en) * 2014-05-07 2016-06-14 Texas Instruments Incorporated Communication reception with compensation for relative variation between transmit bit interval and receiver sampling interval
DE102014115136B4 (de) * 2014-10-17 2021-10-28 Apple Inc. Kommunikationsvorrichtung und Verfahren zum Verarbeiten eines empfangenen Signals
US10757712B2 (en) 2016-02-22 2020-08-25 Microsoft Technology Licensing, Llc Restricted frequency band interference cancellation
US11133011B2 (en) * 2017-03-13 2021-09-28 Mitsubishi Electric Research Laboratories, Inc. System and method for multichannel end-to-end speech recognition

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263053A (en) 1992-03-24 1993-11-16 Novatel Communications Ltd. Fractionally spaced maximum likelihood sequence estimation receiver
US5583886A (en) 1992-12-03 1996-12-10 Motorola, Inc. Method for determining a plurality of channel responses and modifying a received signal therewith
US5537443A (en) 1993-01-19 1996-07-16 Ntt Mobile Communications Network Inc. Interference signal cancelling method, receiver and communication system using the same
US5818876A (en) * 1993-02-01 1998-10-06 Motorola, Inc. Method and apparatus of adaptive maximum likelihood sequence estimation using a variable convergence step size
SE513657C2 (sv) * 1993-06-24 2000-10-16 Ericsson Telefon Ab L M Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
US5506861A (en) 1993-11-22 1996-04-09 Ericsson Ge Mobile Comminications Inc. System and method for joint demodulation of CDMA signals
US5619503A (en) 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5790606A (en) 1994-01-11 1998-08-04 Ericsson Inc. Joint demodulation using spatial maximum likelihood
GB2286506B (en) 1994-02-10 1997-12-10 Roke Manor Research Improvements in or relating to co-channel interferance suppression systems
US5889827A (en) * 1996-12-12 1999-03-30 Ericsson Inc. Method and apparatus for digital symbol detection using medium response estimates
US6148431A (en) * 1998-03-26 2000-11-14 Lucent Technologies Inc. Add compare select circuit and method implementing a viterbi algorithm

Also Published As

Publication number Publication date
EP1110357B1 (en) 2005-06-22
CN1132386C (zh) 2003-12-24
WO2000013383A1 (en) 2000-03-09
HK1040851B (zh) 2004-10-08
CN1315100A (zh) 2001-09-26
HK1040851A1 (en) 2002-06-21
EE200100127A (et) 2002-06-17
EP1110357A1 (en) 2001-06-27
US6304618B1 (en) 2001-10-16
AU5340199A (en) 2000-03-21

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