BR0212097A - Sistema e método para realizar modulação de amplitude em quadratura através da combinação de co-conjuntos e identificadores de co-conjuntos fortemente codificados - Google Patents

Sistema e método para realizar modulação de amplitude em quadratura através da combinação de co-conjuntos e identificadores de co-conjuntos fortemente codificados

Info

Publication number
BR0212097A
BR0212097A BR0212097-6A BR0212097A BR0212097A BR 0212097 A BR0212097 A BR 0212097A BR 0212097 A BR0212097 A BR 0212097A BR 0212097 A BR0212097 A BR 0212097A
Authority
BR
Brazil
Prior art keywords
sets
stream
constellation
amplitude modulation
identifiers
Prior art date
Application number
BR0212097-6A
Other languages
English (en)
Inventor
Wen Tong
Amir Khandani
Original Assignee
Nortel Networks Ltd
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 Nortel Networks Ltd filed Critical Nortel Networks Ltd
Publication of BR0212097A publication Critical patent/BR0212097A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/258—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with turbo codes, e.g. Turbo Trellis Coded Modulation [TTCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957—Turbo codes and decoding
    • 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
    • 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
    • H04L1/0057—Block codes
    • H04L1/0058—Block-coded modulation
    • 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
    • H04L1/0061—Error detection 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
    • 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
    • H04L1/0071—Use of interleaving
    • 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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2615—Reduction thereof using coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
    • H04L27/3427—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation
    • H04L27/3433—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation using an underlying square constellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

"SISTEMA E MéTODO PARA REALIZAR MODULAçãO DE AMPLITUDE EM QUADRATURA ATRAVéS DA COMBINAçãO DE CO-CONJUNTOS E IDENTIFICADORES DE CO-CONJUNTOS FORTEMENTE CODIFICADOS". Um método de codificar um fluxo de elementos de dados é fornecido que envolve subdividir o fluxo de elementos de dados em um primeiro fluxo e um segundo fluxo; codificar o primeiro fluxo para produzir um primeiro fluxo codificado; realizar o mapeamento de constelação utilizando uma combinação do primeiro fluxo codificado e do terceiro fluxo que tem por base o segundo fluxo. Isto poderá envolver definir uma constelação de sinal; definir uma pluralidade de co-conjuntos dentro da constelação tal que uma distância mínima entre os pontos de constelação dentro de cada co-conjunto é maior que uma distância mínima entre quaisquer pontos de constelação dentro da constelação de sinal; realizar o dito mapeamento de constelação ao utilizar o primeiro fluxo codificado para identificar uma seq³ência de co-conjuntos da dita pluralidade de co-conjuntos, e ao utilizar o terceiro fluxo para identificar uma seq³ência de pontos de constelação dentro dos respectivos co-conjuntos da seq³ência de co-conjuntos identificada pelo dito primeiro fluxo codificado.
BR0212097-6A 2001-08-23 2002-08-23 Sistema e método para realizar modulação de amplitude em quadratura através da combinação de co-conjuntos e identificadores de co-conjuntos fortemente codificados BR0212097A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31416901P 2001-08-23 2001-08-23
US31416801P 2001-08-23 2001-08-23
PCT/CA2002/001296 WO2003019792A1 (en) 2001-08-23 2002-08-23 System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers

Publications (1)

Publication Number Publication Date
BR0212097A true BR0212097A (pt) 2004-08-03

Family

ID=26979238

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0212097-6A BR0212097A (pt) 2001-08-23 2002-08-23 Sistema e método para realizar modulação de amplitude em quadratura através da combinação de co-conjuntos e identificadores de co-conjuntos fortemente codificados

Country Status (8)

Country Link
US (4) US7151804B2 (pt)
EP (2) EP1428322A2 (pt)
JP (1) JP4174030B2 (pt)
KR (3) KR101389593B1 (pt)
CN (2) CN100375394C (pt)
BR (1) BR0212097A (pt)
HK (1) HK1073934A1 (pt)
WO (2) WO2003019791A2 (pt)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7411896B1 (en) * 2001-08-29 2008-08-12 Ostendo Technologies, Inc. Method, apparatus, and system for power amplifier efficiency improvement
EP1313247B1 (en) * 2001-11-16 2005-11-09 Matsushita Electric Industrial Co., Ltd. Incremental redundancy ARQ retransmission method using bit reordering schemes
US7139964B2 (en) * 2002-05-31 2006-11-21 Broadcom Corporation Variable modulation with LDPC (low density parity check) coding
JP3990974B2 (ja) * 2002-11-26 2007-10-17 株式会社日立コミュニケーションテクノロジー ピークファクタ低減装置
US7822150B2 (en) * 2003-03-15 2010-10-26 Alcatel-Lucent Usa Inc. Spherical decoder for wireless communications
US7324611B2 (en) * 2003-03-18 2008-01-29 The Boeing Company Symbol decision adjustment in demodulator
DE10317119A1 (de) * 2003-04-14 2004-11-18 Siemens Ag Verfahren, Funksende-/Funkempfangsvorrichtung, Mobiles Endgerät sowie Basisstation zur Datenübertragung in einem Mehrträgersystem
KR100528427B1 (ko) * 2003-04-24 2005-11-15 유흥균 특정 더미 시퀀스(dummy sequence)를 부가적으로 사용하여 직교주파수분할다중화(OFDM) 통신 신호의 피크 전력 대 평균 전력비(PAPR)를 저감하는 장치 및 방법
US7580476B2 (en) * 2003-06-26 2009-08-25 Northrop Grumman Corporation Communication system and method for improving efficiency and linearity
US7391816B2 (en) * 2003-09-17 2008-06-24 Intel Corporation Decoding upstream V.92-encoded signals
US7639747B2 (en) * 2003-10-23 2009-12-29 Harris Corporation System and method for reducing peak-to-average power ratio for multi-carrier communication systems
EP1592191B1 (en) * 2004-04-30 2007-06-06 Sony Deutschland GmbH Equalising structure and method with maximum likelihood detection
US7808940B2 (en) * 2004-05-10 2010-10-05 Alcatel-Lucent Usa Inc. Peak-to-average power ratio control
US8588326B2 (en) * 2004-07-07 2013-11-19 Apple Inc. System and method for mapping symbols for MIMO transmission
US7593339B2 (en) * 2004-07-12 2009-09-22 Qualcomm Incorporated Rate control for packet-based wireless communication
KR100660992B1 (ko) 2005-01-28 2006-12-22 쓰리에스디지털(주) 직교주파수분할다중 시스템에서 송수신 장치 및 방법
EP1713224B1 (en) * 2005-04-14 2012-08-08 Sequans Communications Peak power reduction method for wireless communication systems and corresponding transmitter
WO2007000923A1 (ja) * 2005-06-27 2007-01-04 Matsushita Electric Industrial Co., Ltd. マルチキャリア送信装置およびマルチキャリア送信方法
WO2007010539A1 (en) * 2005-07-21 2007-01-25 Ramot At Tel-Aviv University Ltd. Peak-to mean-envelope-power ratio reduction with low rate loss in multicarrier transmissions
KR100759002B1 (ko) * 2005-10-21 2007-09-17 삼성전자주식회사 디지털 방송 신호를 처리하여 송신하는 디지털 방송 송신시스템 및 그 방법
KR100842079B1 (ko) * 2005-10-21 2008-06-30 삼성전자주식회사 디지털 방송 시스템 및 그 방법
TWI309118B (en) * 2005-11-15 2009-04-21 Realtek Semiconductor Corp Demapper applied to quadrature amplitude modulation trellis coded modulation decoder and related method
EP1958408B1 (en) 2005-12-06 2019-11-06 Microsoft Technology Licensing, LLC Apparatus and method for transmitting data using a plurality of carriers
KR100949965B1 (ko) * 2005-12-06 2010-03-29 엘지전자 주식회사 다수의 반송파를 이용하여 데이터를 전송하는 장치 및 방법
EP1853018B1 (en) 2006-05-03 2014-03-05 Industrial Technology Research Institute Encoding and decoding for multicarrier signals.
BRPI0811586A2 (pt) * 2007-05-16 2015-07-14 Thomson Licensing Aparelho e método para codificar e decodificar sinais
MY162861A (en) * 2007-09-24 2017-07-31 Koninl Philips Electronics Nv Method and system for encoding a video data signal, encoded video data signal, method and system for decoding a video data signal
KR101532315B1 (ko) 2007-10-15 2015-06-30 톰슨 라이센싱 모바일 역량을 지닌 고선명 텔레비전 송신
KR101513283B1 (ko) 2007-10-15 2015-04-17 톰슨 라이센싱 버스트 모드 활동을 통신하기 위한 장치 및 방법
US8630365B2 (en) * 2008-01-29 2014-01-14 Lantiq Deutschland Gmbh Transceiver for communicating over different media types
US9794103B2 (en) * 2008-04-24 2017-10-17 Stmicroelectronics S.R.L. Method and apparatus for multiple antenna communications, and related systems and computer program
US8363749B2 (en) * 2008-05-05 2013-01-29 Industrial Technology Research Institute Peak to average power ratio reduction
US8102810B2 (en) 2008-09-15 2012-01-24 Sony Ericsson Mobile Communications Ab Adaptively selecting signal constellations for multi-carrier edge
JP5235629B2 (ja) * 2008-11-28 2013-07-10 株式会社日立製作所 無線通信装置の符号化及び変調方法、並びに復号方法
US8576898B2 (en) * 2009-06-17 2013-11-05 Techwell, Inc. SLOC spot monitoring
US8842758B2 (en) * 2009-02-11 2014-09-23 Agere Systems Llc Dynamically selecting methods to reduce distortion in multi-carrier modulated signals resulting from high peak-to-average power ratios
EP2288048A1 (en) * 2009-08-21 2011-02-23 Panasonic Corporation Rotated multi-dimensional constellations for improved diversity in fading channels
EP2561654B1 (en) * 2010-04-21 2015-08-05 LG Electronics Inc. Method of reducing peak-to-average power ratio, cubic metric and block error rate in OFDM systems using network coding
CN101867555A (zh) * 2010-06-12 2010-10-20 清华大学 基于随机扩展星座映射的降低峰均比方法及其实现装置
WO2012014160A1 (en) * 2010-07-26 2012-02-02 Nokia Corporation Apparatus and method for cubic metric estimator in dual-carrier and multi-carrier wireless communication system
TW201223170A (en) * 2010-11-18 2012-06-01 Ind Tech Res Inst Layer-aware Forward Error Correction encoding and decoding method, encoding apparatus, decoding apparatus and system thereof
US8811509B2 (en) * 2011-05-25 2014-08-19 Broadcom Corporation Forward error correction (FEC) m-bit symbol modulation
CN102694765B (zh) * 2012-05-15 2014-11-12 北京航空航天大学 一种非2的整数幂阶的qam调制设计方法
US9106470B2 (en) * 2012-12-03 2015-08-11 Qualcomm Incorporated Enhanced decoding and demapping method and apparatus for QAM data signals
US20140254728A1 (en) * 2013-03-07 2014-09-11 Astrapi Corporation Method for gray coding a symbol alphabet
US8924823B2 (en) * 2013-03-15 2014-12-30 Tyco Electronics Subsea Communications Llc System and method for cycle slip correction
WO2014161171A1 (zh) * 2013-04-03 2014-10-09 华为技术有限公司 一种译码方法、译码装置和通信系统
US8792572B1 (en) 2013-05-30 2014-07-29 Telefonaktiebolaget L M Ericsson (Publ) Universal peak power reduction in communication radios
US9407398B2 (en) 2013-09-08 2016-08-02 Tyco Electronics Subsea Communications Llc System and method using cascaded single partity check coding
US9337935B2 (en) 2013-09-08 2016-05-10 Tyco Electronics Subsea Communications Llc Coded modulation for small step-size variable spectral efficiency
CN104660370B (zh) * 2013-11-25 2018-09-07 华为技术有限公司 序列的处理方法及设备
CN106576393B (zh) 2014-09-10 2020-08-18 苹果公司 增强的远程无线电头和计算机可读存储介质
CN105634696B (zh) * 2014-10-31 2019-02-22 富士通株式会社 多载波调制信号的比特分配方法、装置和系统
US10707990B2 (en) 2015-06-10 2020-07-07 Lg Electronics Inc. Method for channel coding in wireless communication system and apparatus therefor
US10181973B2 (en) * 2015-06-12 2019-01-15 Futurewei Technologies, Inc. Trellis shaping on LDPC-coded modulation DMT systems
KR102378790B1 (ko) * 2015-07-31 2022-03-28 삼성전자주식회사 다중 사용자 접속을 지원하는 통신시스템에서 신호를 송신하기 위한 방법 및 장치
US10084631B2 (en) * 2016-06-06 2018-09-25 Ramot At Tel-Aviv University Ltd. Technique for PAPR reduction in communication channel
WO2018027939A1 (zh) * 2016-08-12 2018-02-15 华为技术有限公司 数据传输的方法及其网络设备
US20180083716A1 (en) * 2016-09-19 2018-03-22 Alcatel-Lucent Usa Inc. Probabilistic signal shaping and codes therefor
EP3306821B1 (en) * 2016-10-05 2022-10-26 Technische Universität München Methods of converting or reconverting a data signal and method and system for data transmission and/or data reception
ES2755526T3 (es) * 2016-11-24 2020-04-22 Univ Muenchen Tech Métodos de conversión o reconversión de una señal de datos y método y sistema de transmisión y/o recepción de datos
ES2961365T3 (es) 2017-01-18 2024-03-11 Univ Muenchen Tech Métodos para convertir o reconvertir una señal de datos y método y sistema para la transmisión y/o recepción de datos
EP3404856B1 (en) * 2017-05-15 2024-04-10 Nokia Solutions and Networks Oy Method of and apparatus for modulating an optical carrier
US10355821B2 (en) 2017-06-14 2019-07-16 Nokia Solutions And Networks Oy Probabilistic signal shaping using a self-referencing sequence
US10091046B1 (en) * 2017-11-20 2018-10-02 Nokia Technologies Oy Joint use of probabilistic signal shaping and forward error correction
US10523400B2 (en) 2017-11-20 2019-12-31 Nokia Technologies Oy Multi-code probabilistic signal shaping using frequency-division multiplexing
WO2019109973A1 (en) * 2017-12-06 2019-06-13 Zte Corporation Multi-level quadrature amplitude modulation with geometric shaping
CN108494719B (zh) * 2018-02-26 2020-06-02 北京邮电大学 一种星座映射方法和解映射方法
CN108512799A (zh) * 2018-03-01 2018-09-07 同济大学 面向接收端链路自适应的降低峰均比的星座成形变换方法
US10200231B1 (en) * 2018-03-22 2019-02-05 Nokia Technologies Oy Partial probabilistic signal shaping
WO2020006738A1 (en) * 2018-07-05 2020-01-09 Huawei Technologies Co., Ltd. Method and apparatus for wireless communications with unequal error protection
US10944504B2 (en) 2018-08-02 2021-03-09 Nokia Solutions And Networks Oy Transmission of probabilistically shaped amplitudes using partially anti-symmetric amplitude labels
JP6820131B2 (ja) * 2018-08-07 2021-01-27 三菱電機株式会社 分布整合回路、分布整合終端回路、分布整合方法、分布整合終端方法および光伝送システム
US10587358B1 (en) * 2019-02-28 2020-03-10 Ciena Corporation Probabilistic constellation shaping across time and frequency
US11196594B2 (en) 2019-02-28 2021-12-07 Nokia Solutions And Networks Oy Probabilistic signal shaping using multiple codebooks
US11063696B2 (en) 2019-07-16 2021-07-13 Microsoft Technology Licensing, Llc Increasing average power levels to reduce peak-to-average power levels using error correction codes
US10911284B1 (en) 2019-07-16 2021-02-02 Microsoft Technology Licensing, Llc Intelligent optimization of communication systems utilizing error correction
US11031961B2 (en) 2019-07-16 2021-06-08 Microsoft Technology Licensing, Llc Smart symbol changes for optimization of communications using error correction
US11086719B2 (en) 2019-07-16 2021-08-10 Microsoft Technology Licensing, Llc Use of error correction codes to prevent errors in neighboring storage
US11044044B2 (en) 2019-07-16 2021-06-22 Microsoft Technology Licensing, Llc Peak to average power ratio reduction of optical systems utilizing error correction
US11172455B2 (en) 2019-07-16 2021-11-09 Microsoft Technology Licensing, Llc Peak to average power output reduction of RF systems utilizing error correction
US11075656B2 (en) 2019-07-16 2021-07-27 Microsoft Technology Licensing, Llc Bit error reduction of communication systems using error correction
US10911141B1 (en) 2019-07-30 2021-02-02 Microsoft Technology Licensing, Llc Dynamically selecting a channel model for optical communications
US10742472B1 (en) * 2019-09-06 2020-08-11 Qualcomm Incorporated Probabilistic amplitude shaping
JP2022026454A (ja) * 2020-07-31 2022-02-10 富士通株式会社 通信装置および通信システム
US20230081418A1 (en) * 2021-09-15 2023-03-16 Samsung Display Co., Ltd. Systems and methods for transition encoding compatible pam4 encoding

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2015135A1 (pt) 1968-08-06 1970-04-24 Soval Ltd
US4959842A (en) * 1988-04-13 1990-09-25 Codex Corporation Signal constellations
US5115453A (en) * 1990-10-01 1992-05-19 At&T Bell Laboratories Technique for designing a multidimensional signaling scheme
EP0836305B1 (en) * 1991-03-28 2004-06-23 BRITISH TELECOMMUNICATIONS public limited company TCM scheme with fractional bit rates, framing signals and constellation shaping
US5305352A (en) 1991-10-31 1994-04-19 At&T Bell Laboratories Coded modulation with unequal error protection
US5388124A (en) 1992-06-12 1995-02-07 University Of Maryland Precoding scheme for transmitting data using optimally-shaped constellations over intersymbol-interference channels
US5548615A (en) 1993-05-03 1996-08-20 At&T Corp. Methods and apparatus for rotationally invariant multilevel coding
US5396518A (en) * 1993-05-05 1995-03-07 Gi Corporation Apparatus and method for communicating digital data using trellis coding with punctured convolutional codes
US5452015A (en) * 1994-02-10 1995-09-19 Philips Electronics North America Corporation Method and apparatus for combating co-channel NTSC interference for digital TV transmission
JP3634082B2 (ja) * 1996-08-29 2005-03-30 富士通株式会社 送信装置および受信装置
DE19635813A1 (de) * 1996-09-04 1998-03-05 Johannes Prof Dr Ing Huber Verfahren zur Reduktion des Spitzenwertfaktors bei digitalen Übertragungsverfahren
US5832044A (en) * 1996-09-27 1998-11-03 Elvino S. Sousa Transmitter antenna diversity and fading-resistant modulation for wireless communication systems
US5822371A (en) * 1997-02-14 1998-10-13 General Datacomm Inc. Mapper for high data rate signalling
WO1999003208A2 (en) * 1997-07-11 1999-01-21 Koninklijke Philips Electronics N.V. Transmission system using a variable length encoder
US6285655B1 (en) 1997-09-08 2001-09-04 Qualcomm Inc. Method and apparatus for providing orthogonal spot beams, sectors, and picocells
US6574211B2 (en) 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
JP3722969B2 (ja) 1998-01-08 2005-11-30 株式会社東芝 再送制御方法及び再送制御装置
JPH11215091A (ja) 1998-01-22 1999-08-06 Toshiba Corp Ｏｆｄｍ信号伝送方法及びｏｆｄｍ信号伝送装置
KR100557177B1 (ko) * 1998-04-04 2006-07-21 삼성전자주식회사 적응 채널 부호/복호화 방법 및 그 부호/복호 장치
BR9909525A (pt) * 1998-04-10 2000-12-12 Motorola Inc Dispositivo para melhorar uma propriedade definida de sinais de transformação-domìnio
DK1072136T3 (da) 1998-04-14 2002-04-15 Fraunhofer Ges Forschung Korrektion af ekkofaseoffset i et multibærebølge-demodulationssystem
US6145110A (en) * 1998-06-22 2000-11-07 Ericsson Inc. Digital data decoder that derives codeword estimates from soft data
GB9819689D0 (en) * 1998-09-10 1998-11-04 Nds Ltd Decoding symbols representing digital words
GB9819687D0 (en) * 1998-09-10 1998-11-04 Nds Ltd Encoding input digital words to form encoded output signals
EP1703643B1 (en) 1998-11-09 2019-01-16 Samsung Electronics Co., Ltd. Devices and methods for power control in a rsma (reservation multiple access) mobile communication system
US6587452B1 (en) * 1999-01-04 2003-07-01 Golden Bridge Technology, Inc. High performance signal structure with multiple modulation formats
US6266795B1 (en) 1999-05-28 2001-07-24 Lucent Technologies Inc. Turbo code termination
DE60032895T2 (de) 1999-05-28 2007-10-25 Lucent Technologies Inc. Turbocodeterminierung
US7263141B1 (en) * 1999-06-09 2007-08-28 Thomson Licensing Code mapping in a trellis decoder
US6515980B1 (en) 1999-09-22 2003-02-04 Ericsson Inc. Methods and apparatus for interference cancellation using complex interference orthogonalization techniques
US6480977B1 (en) 1999-10-29 2002-11-12 Worldcom, Inc. Multi-protocol monitor
US7054377B1 (en) * 1999-12-15 2006-05-30 Paradyne Corporation Space diversity trellis interleaver system and method
US7065147B2 (en) * 2000-07-12 2006-06-20 Texas Instruments Incorporated System and method of data communication using turbo trellis coded modulation combined with constellation shaping with or without precoding
FI109393B (fi) * 2000-07-14 2002-07-15 Nokia Corp Menetelmä mediavirran enkoodaamiseksi skaalautuvasti, skaalautuva enkooderi ja päätelaite
US7173978B2 (en) * 2000-07-21 2007-02-06 Song Zhang Method and system for turbo encoding in ADSL
JP4171171B2 (ja) 2000-10-25 2008-10-22 株式会社日立グローバルストレージテクノロジーズ データ同期検出方法およびデータ同期検出装置、情報記録方法および情報記録装置、情報再生方法および情報再生装置、情報記録フォーマット、信号処理装置、情報記録再生装置、情報記録媒体
US6651210B1 (en) * 2000-12-21 2003-11-18 Arraycomm, Inc. Flexible multi-bit per symbol rate encoding
US6986094B2 (en) 2001-03-29 2006-01-10 Intel Corporation Device and method for selecting opcode values with maximum hamming distance to minimize latency and buffering requirements
DE50112386D1 (de) * 2001-05-08 2007-05-31 Siemens Ag Verfahren und vorrichtung zur datenübertragung in einem multiträgersystem mit paralleler concatenierter kodierung und modulation
US6987778B2 (en) 2001-05-22 2006-01-17 Qualcomm Incorporated Enhanced channel interleaving for optimized data throughput
US6996767B2 (en) * 2001-08-03 2006-02-07 Combasis Technology, Inc. Memory configuration scheme enabling parallel decoding of turbo codes

Also Published As

Publication number Publication date
US8290078B2 (en) 2012-10-16
US8526547B2 (en) 2013-09-03
US20030099302A1 (en) 2003-05-29
CN1575549A (zh) 2005-02-02
KR20040029013A (ko) 2004-04-03
CN1572060A (zh) 2005-01-26
KR101389593B1 (ko) 2014-04-29
US7778341B2 (en) 2010-08-17
KR101476873B1 (ko) 2014-12-26
US7151804B2 (en) 2006-12-19
CN100375394C (zh) 2008-03-12
EP1419582A1 (en) 2004-05-19
WO2003019791A3 (en) 2003-07-10
US20100303171A1 (en) 2010-12-02
WO2003019792A1 (en) 2003-03-06
KR20100044260A (ko) 2010-04-29
HK1073934A1 (en) 2005-10-21
KR20040029014A (ko) 2004-04-03
JP2005500784A (ja) 2005-01-06
US20130010904A1 (en) 2013-01-10
WO2003019791A2 (en) 2003-03-06
KR100896352B1 (ko) 2009-05-08
EP1428322A2 (en) 2004-06-16
JP4174030B2 (ja) 2008-10-29
US20030039318A1 (en) 2003-02-27

Similar Documents

Publication Publication Date Title
BR0212097A (pt) Sistema e método para realizar modulação de amplitude em quadratura através da combinação de co-conjuntos e identificadores de co-conjuntos fortemente codificados
BR0300935A (pt) Métodos e sistemas para a autenticação de componentes em um sistema gráfico
BR0009921A (pt) Métodos e aparelhos para processamento de operação de registro de nome de domìnio e meio de leitura por computador
ATE321314T1 (de) Schräglage-verarbeitung für raster-abtast-bilder
BRPI0406983A (pt) troca de canal rápida por difusão escalonada em modo robusto
RU95106682A (ru) Распределенная компьютерная система
BR0308575A (pt) Método, sistema e meio suscetìvel de ser lido por computador para conduzir uma transação usando um dispositivo de proximidade
DE50003357D1 (de) Augmented-reality-system mit sprachbasierter erfassung von informationsdaten, insbesondere von serviceberichten
BRPI0505303A (pt) método e sistema para ligar faixas de dados de um documento gerado por computador a elementos de linguagem de marcação extensìveis associados
BR0208228A (pt) Nomes alternativos de usuário em sistema de comunicação
BR9809252A (pt) Método e sistema para acessar recursos eletrônicos através dos dados que podem ser lidos por máquina em documentos inteligentes
BR0116791A (pt) Método e arranjo para determinar um sinal de ruìdo de uma fonte de ruìdo
DE602006017619D1 (de) Verfahren und System für das Verringern der Zahl von Ports zugeteilt durch ein Relais
BR0214895A (pt) Processos para converter uma solução de um catalisador de polimerização de olefinas homogêneo, para produzir um catalisador de polimerização de olefinas, para (co)polimerizar uma olefina, catalisador, uso do catalisador, poliolefinas, e, uso de solvente orgânico fluorado ou de misturas de solventes orgânicos fluorado
BR9901145A (pt) Sistema e método para executar uma instrução de troca de posição
BRPI0417636A (pt) sistema, método, e, meio legìvel por computador
BRPI0511811A (pt) transmissão de informações de overhead para serviços de broadcast e multicast em um sistema de comunicação sem fio
BR9709145A (pt) Vedação para vedar uma abertura
BR112021026284A2 (pt) Aparelho para decodificar ou codificar um bloco predeterminado de uma imagem, métodos e fluxo de dados
BR9907017A (pt) "processo e arranjo para embutir dados suplementares em um sinal de informação, processo e arranjo para extrair dados suplementares de um sinal de informação, sinal de informação tendo amostras de dados suplementares embutidas em posições predeterminadas do sinal, e, meio de armazenagem."
BRPI0205528B8 (pt) método e aparelho para o mapeamento de um fluxo de bits
DE60029828D1 (de) Verfahren und vorrichtung zur dekodierung von videosignalen mittels eines multiprozessorsystems
BR9904057A (pt) Sistema para transmitir sinais de dados de uma maneira segura
ES2169511T3 (es) Correccion de desviacion de fase de eco en un sistema de demodulacion de multiportadora.
MX162453A (es) Mejoras en transcodificador de colores que permite la interconexion de dos equipos con diferente definicion de color

Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: ROCKSTAR BIDCO, LP (US)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ART .8O COMBINADO COM ART. 13 DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.