MX2007004312A - Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion. - Google Patents

Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion.

Info

Publication number
MX2007004312A
MX2007004312A MX2007004312A MX2007004312A MX2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A
Authority
MX
Mexico
Prior art keywords
data
estimates
sub bands
errors due
log
Prior art date
Application number
MX2007004312A
Other languages
English (en)
Inventor
Durga Malladi
Anastasios Stamoulis
Dung N Doan
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36145309&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2007004312(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of MX2007004312A publication Critical patent/MX2007004312A/es

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
    • 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
    • H04L25/03312—Arrangements specific to the provision of output signals
    • H04L25/03318—Provision of soft decisions
    • 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
    • H04L25/03171—Arrangements involving maximum a posteriori probability [MAP] detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
  • Noise Elimination (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Se describen tecnicas para realizar la deteccion y decodificacion de datos de manera que represente las subbandas de proteccion. Un receptor obtiene simbolos de piloto recibidos para las subbandas de piloto y simbolos de datos recibidos para subbandas de datos. Los calculos de canal se derivan con base en los simbolos de piloto recibidos con subbandas de piloto con salida cero llenas con ceros. La deteccion de datos se realiza en los simbolos de datos recibidos con los calculos de canal para obtener calculos de simbolo de datos. Se derivan los calculos de ruido y errores de calculo debidos a las subbandas de piloto con salida cero. Despues, las LLRs se calculan con base en los calculos de simbolo de datos, los calculos de datos, y los calculos de ruido y los errores de calculo. Las LLRs se agrupan y decodifican para obtener datos decodificados.
MX2007004312A 2004-10-12 2005-10-12 Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion. MX2007004312A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US61834504P 2004-10-12 2004-10-12
US11/248,975 US8325863B2 (en) 2004-10-12 2005-10-11 Data detection and decoding with considerations for channel estimation errors due to guard subbands
PCT/US2005/037077 WO2006042326A1 (en) 2004-10-12 2005-10-12 Log-likelihood estimation based on channel estimation errors due to guard subbands

Publications (1)

Publication Number Publication Date
MX2007004312A true MX2007004312A (es) 2007-06-18

Family

ID=36145309

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007004312A MX2007004312A (es) 2004-10-12 2005-10-12 Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion.

Country Status (12)

Country Link
US (1) US8325863B2 (es)
EP (1) EP1800445A1 (es)
JP (1) JP4768742B2 (es)
KR (1) KR100874620B1 (es)
CN (1) CN101124796B (es)
AU (1) AU2005295128A1 (es)
BR (1) BRPI0516092A (es)
CA (1) CA2584442C (es)
IL (1) IL182471A0 (es)
MX (1) MX2007004312A (es)
RU (1) RU2358400C2 (es)
WO (1) WO2006042326A1 (es)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
KR100483004B1 (ko) * 2002-09-12 2005-04-15 한국전자통신연구원 연판정 복호기, 및 연판정 복호시 대수 우도비 계산 장치및 그 방법
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US8484272B2 (en) * 2004-08-20 2013-07-09 Qualcomm Incorporated Unified pulse shaping for multi-carrier and single-carrier waveforms
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9520972B2 (en) * 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9143305B2 (en) * 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US8611284B2 (en) 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US8599945B2 (en) * 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US9179319B2 (en) 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8885628B2 (en) * 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US9225488B2 (en) * 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US9210651B2 (en) * 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9225416B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8831607B2 (en) 2006-01-05 2014-09-09 Qualcomm Incorporated Reverse link other sector communication
US8689025B2 (en) * 2006-02-21 2014-04-01 Qualcomm Incorporated Reduced terminal power consumption via use of active hold state
US8077595B2 (en) 2006-02-21 2011-12-13 Qualcomm Incorporated Flexible time-frequency multiplexing structure for wireless communication
US9461736B2 (en) * 2006-02-21 2016-10-04 Qualcomm Incorporated Method and apparatus for sub-slot packets in wireless communication
ATE495598T1 (de) * 2006-02-21 2011-01-15 Qualcomm Inc Feedback-kanalauslegung für kommunikationssysteme mit mehreren ein- und ausgängen (mimo)
US8081698B2 (en) * 2006-06-29 2011-12-20 Qualcomm Incorporated Method and apparatus for selection mechanism between OFDM-MIMO and LFDM-SIMO
CN101578801B (zh) 2006-11-01 2013-06-19 高通股份有限公司 在sc-fdma系统中的使用可变功率偏移的控制与数据的复用
KR20080042680A (ko) * 2006-11-10 2008-05-15 한국전자통신연구원 직교주파수 분할 다중접속과 단일 반송파 주파수분할다중접속을 혼용하기 위한 파일럿 송신장치 및 그 방법
WO2008056900A1 (en) * 2006-11-10 2008-05-15 Electronics And Telecommunications Research Institute Pilot transmitting apparatus and method for sc-fdma system
US8001452B2 (en) * 2006-11-17 2011-08-16 Agere Systems Inc. Methods and apparatus for soft decision decoding using reliability values based on a log base two function
US8149964B2 (en) * 2007-01-05 2012-04-03 Qualcomm, Incorporated Symbol scaling with automatic gain control for wireless communication
KR100922949B1 (ko) 2007-01-26 2009-10-22 삼성전자주식회사 통신 시스템에서 신호 수신 방법 및 그 시스템
US9363126B2 (en) * 2007-12-21 2016-06-07 Google Technology Holdings LLC Method and apparatus for IFDMA receiver architecture
US8437433B2 (en) * 2008-03-28 2013-05-07 Qualcomm Incorporated Zeroing-out LLRs using demod-bitmap to improve performance of modem decoder
US8572332B2 (en) 2008-03-28 2013-10-29 Qualcomm Incorporated De-interleaving mechanism involving a multi-banked LLR buffer
JP5291990B2 (ja) * 2008-06-05 2013-09-18 株式会社日立国際電気 無線通信システム及び受信装置並びに受信信号処理方法
US8654666B2 (en) * 2008-11-03 2014-02-18 Lg Electronics Inc. Communication method and apparatus in multi-carrier system
US9154272B2 (en) 2009-05-07 2015-10-06 Qualcomm Incorporated Method and apparatus for facilitating reliable transmission of a control region size and detection of cross-carrier signaling
US9124409B2 (en) * 2009-07-30 2015-09-01 Qualcomm Incorporated Determining control region parameters for multiple transmission points
US8976903B2 (en) * 2009-09-02 2015-03-10 Qualcomm Incorporated Unified iterative decoding architecture using joint LLR extraction and a priori probability
US8989320B2 (en) * 2009-09-02 2015-03-24 Qualcomm Incorporated Hardware simplification of sic-MIMO decoding by use of a single hardware element with channel and noise adaptation for interference cancelled streams
EP2507957A4 (en) * 2009-11-30 2017-03-01 Optis Wireless Technology, LLC Bit soft value normalization
US8340222B2 (en) * 2009-12-24 2012-12-25 Intel Corporation Parameter and scattered pilot based symbol timing recovery
US8199034B2 (en) 2010-04-20 2012-06-12 Qualcomm Incorporated Method and apparatus for soft symbol determination
US8467438B2 (en) * 2010-08-02 2013-06-18 Bassel F. Beidas System and method for iterative nonlinear compensation for intermodulation distortion in multicarrier communication systems
CN102394843B (zh) * 2011-06-30 2014-09-03 华为技术有限公司 一种纠错及反馈均衡控制方法和装置
JP5767899B2 (ja) * 2011-08-23 2015-08-26 株式会社日立国際電気 受信装置
JP2013046131A (ja) * 2011-08-23 2013-03-04 Mitsubishi Electric Research Laboratories Inc 時間変化的および周波数選択的なチャネルを推定するための方法
GB2490191B (en) * 2012-01-23 2014-01-08 Renesas Mobile Corp Method, processing system and computer program for calculating a noise covariance estimate
CN102437995A (zh) * 2012-01-31 2012-05-02 电子科技大学 基于逐码片迭代检测的迭代载波同步方法及系统
JP5845128B2 (ja) * 2012-03-29 2016-01-20 日本放送協会 受信装置及びプログラム
US9473332B2 (en) * 2012-04-27 2016-10-18 The Royal Institution For The Advancement Of Learning / Mcgill University Methods and devices for communications systems using multiplied rate transmission
GB2548293B (en) * 2012-05-30 2018-01-17 Imagination Tech Ltd Noise variance estimation and interference detection
US20160013952A1 (en) * 2013-03-04 2016-01-14 Osaka University Reception device and reception method
CN104301260B (zh) * 2013-07-18 2018-12-11 锐迪科（重庆）微电子科技有限公司 一种信道参数估计方法及系统
KR102267723B1 (ko) * 2015-01-21 2021-06-22 삼성전자주식회사 이동 통신 시스템에서 유효 잡음을 기반으로 채널 복호 동작을 수행하는 장치 및 방법
US10805117B2 (en) * 2016-07-07 2020-10-13 Microchip Technology Incorporated Channel estimation in OFDM communication systems
US10833900B2 (en) * 2018-12-17 2020-11-10 Lockheed Martin Corporation Joint estimation of communication channel effects in communication receivers

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5852630A (en) * 1997-07-17 1998-12-22 Globespan Semiconductor, Inc. Method and apparatus for a RADSL transceiver warm start activation procedure with precoding
US6654429B1 (en) * 1998-12-31 2003-11-25 At&T Corp. Pilot-aided channel estimation for OFDM in wireless systems
US6442130B1 (en) 1999-01-21 2002-08-27 Cisco Technology, Inc. System for interference cancellation
US6829307B1 (en) * 1999-02-24 2004-12-07 The Board Of Trustees Of Leland Stanford Junior University Express bit swapping in a multicarrier transmission system
US6661832B1 (en) 1999-05-11 2003-12-09 Qualcomm Incorporated System and method for providing an accurate estimation of received signal interference for use in wireless communications systems
US7106813B1 (en) * 2000-03-16 2006-09-12 Qualcomm, Incorporated Method and apparatus for combined soft-decision based interference cancellation and decoding
US6633616B2 (en) * 2001-02-21 2003-10-14 Magis Networks, Inc. OFDM pilot tone tracking for wireless LAN
US7027519B2 (en) * 2001-02-28 2006-04-11 Mitsubishi Electric Research Laboratories, Inc. Iterative maximum likelihood channel estimation and signal detection for OFDM systems
KR100434473B1 (ko) * 2001-05-11 2004-06-05 삼성전자주식회사 직교주파수 분할 다중 시스템에서 채널 복호 장치 및 방법
US7139320B1 (en) * 2001-10-11 2006-11-21 Texas Instruments Incorporated Method and apparatus for multicarrier channel estimation and synchronization using pilot sequences
US7023931B2 (en) 2001-11-05 2006-04-04 Texas Instruments Incorporated System and method for soft slicing
US7197084B2 (en) * 2002-03-27 2007-03-27 Qualcomm Incorporated Precoding for a multipath channel in a MIMO system
CN1675906A (zh) * 2002-08-13 2005-09-28 皇家飞利浦电子股份有限公司 在宽带ofdm系统中的联合信道和噪声方差估计
KR100483004B1 (ko) * 2002-09-12 2005-04-15 한국전자통신연구원 연판정 복호기, 및 연판정 복호시 대수 우도비 계산 장치및 그 방법
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US7317750B2 (en) * 2002-10-31 2008-01-08 Lot 41 Acquisition Foundation, Llc Orthogonal superposition coding for direct-sequence communications
EP1445906B1 (en) * 2002-12-09 2006-05-31 Rohde & Schwarz GmbH & Co. KG Method and device for analysing an OFDM signal
US7349462B2 (en) * 2002-12-23 2008-03-25 International Business Machines Corporation Acquisition and adjustment of gain, receiver clock frequency, and symbol timing in an OFDM radio receiver
JP4189477B2 (ja) * 2003-01-10 2008-12-03 国立大学法人東京工業大学 Ｏｆｄｍ（直交周波数分割多重）適応等化受信方式及び受信機
US7386057B2 (en) * 2003-02-20 2008-06-10 Nec Corporation Iterative soft interference cancellation and filtering for spectrally efficient high-speed transmission in MIMO systems
EP1453262A1 (en) * 2003-02-28 2004-09-01 Mitsubishi Electric Information Technology Centre Europe B.V. Iterative MMSE detection
US7590188B2 (en) * 2003-05-21 2009-09-15 Regents Of The University Of Minnesota Channel estimation for block transmissions over time- and frequency-selective wireless fading channels
KR100560386B1 (ko) * 2003-12-17 2006-03-13 한국전자통신연구원 무선 통신 시스템의 상향 링크에서 코히어런트 검출을위한 직교주파수 분할 다중 접속 방식의 송수신 장치 및그 방법
US8391413B2 (en) * 2003-12-19 2013-03-05 Qualcomm Incorporated Channel estimation for an OFDM communication system with inactive subbands
US7555053B2 (en) * 2004-04-14 2009-06-30 Broadcom Corporation Long training sequence for MIMO WLAN systems
US7672383B2 (en) * 2004-09-17 2010-03-02 Qualcomm Incorporated Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling
US7653035B2 (en) * 2004-12-20 2010-01-26 Intel Corporation Interference rejection in wireless receivers

Also Published As

Publication number Publication date
CN101124796B (zh) 2011-06-01
US8325863B2 (en) 2012-12-04
CA2584442C (en) 2012-09-18
RU2358400C2 (ru) 2009-06-10
BRPI0516092A (pt) 2008-08-19
WO2006042326A1 (en) 2006-04-20
IL182471A0 (en) 2007-07-24
JP4768742B2 (ja) 2011-09-07
KR100874620B1 (ko) 2008-12-17
EP1800445A1 (en) 2007-06-27
RU2007117710A (ru) 2008-11-20
US20060078075A1 (en) 2006-04-13
AU2005295128A1 (en) 2006-04-20
JP2008516563A (ja) 2008-05-15
CN101124796A (zh) 2008-02-13
CA2584442A1 (en) 2006-04-20
KR20070063015A (ko) 2007-06-18

Similar Documents

Publication Publication Date Title
MX2007004312A (es) Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion.
WO2019018017A3 (en) ENHANCED TURBO-RECEIVERS FOR SINGLE INPUT SINGLE OUTPUT SINGLE ACOUSTIC COMMUNICATIONS
WO2008086229A3 (en) Symbol scaling with automatic gain control for wireless communication
CA2541567A1 (en) Parallel soft spherical mimo receiver and decoding method
WO2008011345A3 (en) Receiver having multi-antenna log likelihood ratio generation with channel estimation error
IL181901A0 (en) Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling
GB2437037A (en) Platform noise mitigation in ofdm receivers
WO2003049397A3 (en) Iterative detection and decoding for a mimo-ofdm system
ES2282323T3 (es) Metodo para estimar tasas de errores en receptores que utiliza descodificacion iterativa.
EP2750299B1 (en) Interference cancellation in a multi-user receiver
TW200943757A (en) Iterative signal receiving method and related iterative receiver
RU2011111697A (ru) Способ и устройство для подавления помех низкой сложности при обработке сигнала связи
CN101005299B (zh) 信号处理的方法和系统
KR20120083476A (ko) 통신 장치
WO2010042689A3 (en) Systems and methods for unequal error protection and soft decision calculations
WO2013162440A3 (en) Method and apparatus for soft symbol processing in a communication receiver
TW200635206A (en) Data detection and decoding with considerations for channel estimation errors due to guard subbands
US9240863B2 (en) Apparatus and method for estimating channel in wireless communication system
US20140211871A1 (en) Method and System for Improved Cellular Diversity Receiver
TW200419947A (en) Channel estimation for communication systems
KR20110060151A (ko) 수신단에서의 복조 및 디코딩 시스템 및 그 방법
Kang et al. OFDM underwater acoustic communications in KAM08
RU2009112127A (ru) Способ итеративной обработки сигнала и последовательный модем с комбинированной обратной связью
TWI268664B (en) An efficient soft decision demapper to minimize Viterbi decoder complexity
Bisht et al. M-ARY PSK scheme in cellular environment

Legal Events

Date Code Title Description
FG Grant or registration
HH Correction or change in general