ATE418195T1 - Vorrichtung und verfahren zur bestimmung von kombinierergewichten und log- wahrscheinlichkeitsverhältnissen für in einem drahtlosen kommunikationssystem übertragene symbole - Google Patents

Vorrichtung und verfahren zur bestimmung von kombinierergewichten und log- wahrscheinlichkeitsverhältnissen für in einem drahtlosen kommunikationssystem übertragene symbole

Info

Publication number
ATE418195T1
ATE418195T1 AT03729592T AT03729592T ATE418195T1 AT E418195 T1 ATE418195 T1 AT E418195T1 AT 03729592 T AT03729592 T AT 03729592T AT 03729592 T AT03729592 T AT 03729592T AT E418195 T1 ATE418195 T1 AT E418195T1
Authority
AT
Austria
Prior art keywords
wireless communications
communications system
symbols transmitted
log probability
combiner weights
Prior art date
Application number
AT03729592T
Other languages
English (en)
Inventor
Srikant Jayaraman
Ivan Corbaton
John Smee
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
Application granted granted Critical
Publication of ATE418195T1 publication Critical patent/ATE418195T1/de

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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • 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
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H04B1/71057—Joint detection techniques, e.g. linear detectors using maximum-likelihood sequence estimation [MLSE]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
AT03729592T 2002-01-15 2003-01-07 Vorrichtung und verfahren zur bestimmung von kombinierergewichten und log- wahrscheinlichkeitsverhältnissen für in einem drahtlosen kommunikationssystem übertragene symbole ATE418195T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/050,399 US6901103B2 (en) 2002-01-15 2002-01-15 Determining combiner weights and log likelihood ratios for symbols transmitted on diversity channels

Publications (1)

Publication Number Publication Date
ATE418195T1 true ATE418195T1 (de) 2009-01-15

Family

ID=21965028

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03729592T ATE418195T1 (de) 2002-01-15 2003-01-07 Vorrichtung und verfahren zur bestimmung von kombinierergewichten und log- wahrscheinlichkeitsverhältnissen für in einem drahtlosen kommunikationssystem übertragene symbole

Country Status (14)

Country Link
US (1) US6901103B2 (de)
EP (1) EP1474887B1 (de)
JP (1) JP4130632B2 (de)
KR (1) KR100956460B1 (de)
CN (1) CN100369402C (de)
AT (1) ATE418195T1 (de)
AU (1) AU2003216045A1 (de)
BR (1) BR0306895A (de)
CA (1) CA2473233A1 (de)
DE (1) DE60325336D1 (de)
HK (1) HK1077432A1 (de)
MX (1) MXPA04006829A (de)
TW (1) TWI319667B (de)
WO (1) WO2003061180A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006513881A (ja) * 2002-12-13 2006-04-27 ジー−ピー ジプサム コーポレイション Ｕｖ硬化耐湿性コーティングを備えた石膏パネル及びその製造方法
DE10340397A1 (de) * 2003-09-02 2005-04-07 Siemens Ag §erfahren zum Übertragen von Signalen in einem Funkkommunikationssystem sowie entsprechende Sendestation und Empfangsstation
DE10341108A1 (de) * 2003-09-05 2005-04-07 Infineon Technologies Ag Verfahren und Vorrichtung zur Erzeugung von logarithmischen Wahrscheinlichkeitsverhältnissen bei Rake-Demodulatoren
US8023466B2 (en) 2004-06-22 2011-09-20 Jianglei Ma Soft handoff in OFDMA system
US7668226B2 (en) 2005-02-23 2010-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for estimating gain offsets for amplitude-modulated communication signals
US7609754B2 (en) * 2005-08-30 2009-10-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for received communication signal processing
US7590167B2 (en) * 2005-08-30 2009-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for QAM demodulation in a generalized rake receiver
KR100895183B1 (ko) * 2006-02-03 2009-04-24 삼성전자주식회사 무선통신 시스템을 위한 주변 셀 간섭의 제거를 위한송수신 방법 및 장치
KR101489773B1 (ko) * 2007-02-28 2015-02-04 가부시키가이샤 엔티티 도코모 이동통신 시스템, 기지국 장치 및 방법
US20090132894A1 (en) * 2007-11-19 2009-05-21 Seagate Technology Llc Soft Output Bit Threshold Error Correction
US8127216B2 (en) 2007-11-19 2012-02-28 Seagate Technology Llc Reduced state soft output processing
US8428547B2 (en) 2009-10-22 2013-04-23 Korea Advanced Institute Of Science And Technology Signaling in wireless communication systems
CN104639284B (zh) * 2015-01-05 2018-10-02 华为技术有限公司 一种译码处理方法及装置
US10212020B2 (en) * 2015-06-09 2019-02-19 Samsung Electronics Co., Ltd Apparatus and method for superposition transmissions
DE102016215640A1 (de) * 2016-08-19 2018-02-22 Robert Bosch Gmbh Verfahren, Sensor und Steuergerät zum Übertragen eines Datenpakets von einem Sensor zu einem Steuergerät

Family Cites Families (14)

* 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
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US6396804B2 (en) * 1996-05-28 2002-05-28 Qualcomm Incorporated High data rate CDMA wireless communication system
US6006075A (en) * 1996-06-18 1999-12-21 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity
JPH11266180A (ja) * 1998-03-18 1999-09-28 Fujitsu Ltd 無線基地局のアレーアンテナシステム
US6434203B1 (en) * 1999-02-26 2002-08-13 Qualcomm, Incorporated Memory architecture for map decoder
US6377607B1 (en) * 1999-05-13 2002-04-23 Qualcomm Incorporated System and method for performing accurate demodulation of turbo-encoded signals via pilot assisted coherent demodulation
US6714585B1 (en) * 1999-06-25 2004-03-30 Ericsson Inc. Rake combining methods and apparatus using weighting factors derived from knowledge of spreading spectrum signal characteristics
US6594318B1 (en) * 1999-12-02 2003-07-15 Qualcomm Incorporated Method and apparatus for computing soft decision input metrics to a turbo decoder
JP4389373B2 (ja) * 2000-10-11 2009-12-24 ソニー株式会社 ２元巡回符号を反復型復号するための復号器
US6985536B2 (en) * 2001-01-12 2006-01-10 International Business Machines Corporation Block coding for multilevel data communication
US6990137B2 (en) * 2001-05-17 2006-01-24 Qualcomm, Incorporated System and method for received signal prediction in wireless communications systems
US7170924B2 (en) * 2001-05-17 2007-01-30 Qualcomm, Inc. System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system

Also Published As

Publication number Publication date
US6901103B2 (en) 2005-05-31
CN100369402C (zh) 2008-02-13
US20030133520A1 (en) 2003-07-17
CN1640047A (zh) 2005-07-13
WO2003061180A1 (en) 2003-07-24
KR100956460B1 (ko) 2010-05-07
EP1474887B1 (de) 2008-12-17
DE60325336D1 (de) 2009-01-29
JP4130632B2 (ja) 2008-08-06
HK1077432A1 (en) 2006-02-10
CA2473233A1 (en) 2003-07-24
TW200307411A (en) 2003-12-01
KR20040070313A (ko) 2004-08-06
MXPA04006829A (es) 2004-10-11
TWI319667B (en) 2010-01-11
JP2005515698A (ja) 2005-05-26
EP1474887A1 (de) 2004-11-10
AU2003216045A1 (en) 2003-07-30
BR0306895A (pt) 2004-12-14

Similar Documents

Publication Publication Date Title
HK1077432A1 (en) Apparatus and method for determining combiner weights and log-likelihood ratios for symbols transmitted in a wireless communication system
EP1722499B1 (de) Empfängervorrichtung, empfangsverfahren und drahtloses kommunikationssystem
CN102484564B (zh) 使用联合llr提取和先验概率的统一迭代解码架构
CN104079381A (zh) 具有harq组合和软判决指导的信道估计的迭代解码架构
EP1487120A3 (de) Fehlererkennungsverfahren in drahtlosen Kommunikationssystemen
DE602004007538D1 (de) Schnittstelle, vorrichtung und verfahren zur kommunikation zwischen einem funkgeräte-steuerknoten und einem fernfunkgeräte-knoten in einer funk-basisstation
WO2004057554A3 (en) Virtual simulator system and method for neuromuscular training and certification via a communication network
EP1768334A3 (de) Einrichtung und Verfahren zur Erfassung von Rückkoppelungsinformationen in einem drahtlosen Vermittlungssystem
WO2006121900A3 (en) Multiple source wireless communication system and method
EP4111763A4 (de) Benutzergerät und basisstation in einem drahtloskommunikationssystem und davon durchgeführte verfahren
DE60317753D1 (de) Verfahren und Vorrichtung zur automatischen Client-Authentifizierung in einem drahtloses Netzwerk, das durch PEAP, EAP-TLS oder andere erweiterbare Authentifizierungsprotokolle geschützt wird
DK1313784T3 (da) Polyurethan-(polymer-hybrid)-dispersion med reduceret hydrofili, fremgangsmåde til fremstilling af dispersionen og anvendelse af denne
WO2007011138A3 (en) Method and apparatus for transmitting pilot symbols in wireless communication system
DE60311761D1 (de) Vorrichtung und Verfahren zur Übertragung und zum Empfang von einer Pilotfolge in einem Mobilkommunikationssystem mittels Raum-Zeit-Trellis-Kodes
ATE402575T1 (de) Verfahren zur signalisierung von parametern für komprimierten modus an eine mobilstation
AU2001275169A1 (en) Method and apparatus for puncturing code symbols in a communications system
ATE384362T1 (de) Sendeleistungs-verstärkungstabellen basierend auf geschwindigkeitsschätzung
US8428173B2 (en) Demodulation method for MIMO systems
DE60318715D1 (de) Pilotsymbole in kommunikationssystemen
EP1517454A3 (de) Gerät und Verfahren zur Zell- und Mehrwegesuche in einem mobilen Kommunikationssystem
ATE515850T1 (de) Verfahren und vorrichtung zur signalqualitätsschätzung
DE60325937D1 (de) Prozessor une verfahren zur gewichtsdetektion in einem w-cdma system mit geschlossener schleife und mehrwegdiversität
WO2005002247A3 (en) Method and apparatus for performing soft-handoff in a wireless communication system
WO2005125068A3 (en) Method and apparatus for reducing multi-user processing in wireless communication systems
ATE408271T1 (de) Verfahren und vorrichtung zur drahtlosen kommunikation zur durchführung einer nachdetektions-konstellationskorrektur

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties