NO20004315L - Samkanalinterferens i en mottaker - Google Patents

Samkanalinterferens i en mottaker

Info

Publication number
NO20004315L
NO20004315L NO20004315A NO20004315A NO20004315L NO 20004315 L NO20004315 L NO 20004315L NO 20004315 A NO20004315 A NO 20004315A NO 20004315 A NO20004315 A NO 20004315A NO 20004315 L NO20004315 L NO 20004315L
Authority
NO
Norway
Prior art keywords
signal
receiver
block
interference
received
Prior art date
Application number
NO20004315A
Other languages
English (en)
Other versions
NO20004315D0 (no
Inventor
Jyrki Keisala
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of NO20004315D0 publication Critical patent/NO20004315D0/no
Publication of NO20004315L publication Critical patent/NO20004315L/no

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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • 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
    • 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
    • H04L25/03331—Arrangements for the joint estimation of multiple sequences
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)

Abstract

Oppfinnelsen angår en fremgangsmåte for mottaking og en mottaker for et TDMA-radiosystem, hvor signaler som skal mottas, omfatter et ønsket signal og ett eller flere i det minste av og til forekommende interferenssignaler, hvor det ønskede signalet og interferenssignalet omfatter en forhåndsbestemt sekvens, som signalene kan skilles fra hverandre ved hjelp av. Mottakeren leter etter det sterkest interfererende interferenssignalet i en leteblokk (318), og danner et sig- nalestimat av det ønskede signalet ved hjelp av den forhåndsbestemte sekvensen i det ønskede signalet, i blokk (312). l blokk (326) danner videre mottakeren et samkanalsignal-estimat ved hjelp av de forhåndsbestemte sekvensene i det øns- kede signalet og interferenssignalet. l blokk (314) danner mottakeren det første restsignal, som beskriver forskjellen mellom det mottatte signalets signalestimater og det ønskede signalet, og i blokk (328) danner mottakeren det andre restsignal, som beskriver forskjellen mellom det mottatte signalet og samkanalsignal-estima- tet. Mottakeren sammenligner det første restsignalet med det andre restsignalet i blokk (332), og på grunnlag av sammenligningen velger den for detektoren (334), enten énsignal-deteksjon eller fellesdeteksjon for å detektere det mottatte signa- let.
NO20004315A 1998-12-31 2000-08-30 Samkanalinterferens i en mottaker NO20004315L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982857A FI982857A (fi) 1998-12-31 1998-12-31 Vastaanottomenetelmä ja vastaanotin
PCT/FI1999/001085 WO2000041317A2 (en) 1998-12-31 1999-12-28 Co-channel interference in a receiver

Publications (2)

Publication Number Publication Date
NO20004315D0 NO20004315D0 (no) 2000-08-30
NO20004315L true NO20004315L (no) 2000-10-30

Family

ID=8553247

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20004315A NO20004315L (no) 1998-12-31 2000-08-30 Samkanalinterferens i en mottaker

Country Status (7)

Country Link
US (1) US6714609B1 (no)
EP (1) EP1066687A2 (no)
CN (1) CN1350723A (no)
AU (1) AU3048400A (no)
FI (1) FI982857A (no)
NO (1) NO20004315L (no)
WO (1) WO2000041317A2 (no)

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FI110825B (fi) * 1999-08-10 2003-03-31 Nokia Corp Menetelmä modulaationilmaisimen valintaan vastaanottimessa ja vastaanotin
US20020044614A1 (en) * 2000-09-12 2002-04-18 Molnar Karl James Methods and systems for reducing interference using co-channel interference mapping
US6832080B1 (en) 2000-09-12 2004-12-14 Ericsson, Inc. Apparatus for and method of adapting a radio receiver using control functions
US7010069B2 (en) * 2000-12-04 2006-03-07 Trellisware Technologies, Inc. Method for co-channel interference identification and mitigation
JP3875042B2 (ja) * 2001-05-25 2007-01-31 株式会社エヌ・ティ・ティ・ドコモ 干渉除去システム及び干渉除去方法
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
US20050107039A1 (en) * 2001-11-09 2005-05-19 Bengt Lindoff Co-channel interference detector for cellular communications systems
DE60108761D1 (de) * 2001-11-09 2005-03-10 Ericsson Telefon Ab L M Detektor zur Gleichkanalstörungen in zellularen Kommunikationssystemen
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
US7218893B2 (en) * 2002-01-25 2007-05-15 Telefonaktiebolaget Lm Ericsson (Publ) Method for interference source identification
EP1357716A1 (de) * 2002-04-23 2003-10-29 Siemens Aktiengesellschaft Verfahren zur Unterdrückung von Gleichkanalstörungen in einem TDMA-System
DE10341107B3 (de) * 2003-09-05 2005-05-19 Infineon Technologies Ag Verfahren und Empfangseinheit zur Kompensation eines Frequenzversatzes und/oder einer zeitlichen Änderung der Phase eines Übertragungskanals durch empfängerseitiges Auswerten von Randsymbolen eines empfangenen Datenbursts
US7813457B2 (en) * 2003-12-29 2010-10-12 Intel Corporation Device, system and method for detecting and handling co-channel interference
US7366475B2 (en) * 2004-06-04 2008-04-29 Telefonaktiebolaget Lm Ericsson (Publ) Signal strength measurements in cellular telecommunication systems
US7373130B2 (en) * 2005-04-13 2008-05-13 Telefonaktiebolaget L M Ericsson (Publ) Simultaneous channel estimation of a carrier and an interferer
US7519329B2 (en) * 2005-07-01 2009-04-14 Research In Motion Limited Determination of antenna noise temperature for handheld wireless devices
US7822101B2 (en) * 2007-06-25 2010-10-26 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for interference suppression in a wireless communication receiver
KR101402238B1 (ko) * 2008-04-16 2014-06-02 연세대학교 산학협력단 다중안테나 시스템에서 신호검출을 위한 수신장치 및 방법
CN101599772B (zh) * 2008-06-04 2013-04-10 联发科技股份有限公司 解调信号的方法与装置
CN101938283B (zh) * 2009-06-29 2013-09-04 国基电子（上海）有限公司 多载波干扰消除电路及使用其的信号收发系统
US8340231B1 (en) * 2009-07-08 2012-12-25 Marvell International Ltd. Optimal symbol detection in the presence of non-gaussian interference
CN102983922B (zh) * 2012-11-29 2014-12-24 华为技术有限公司 一种测量同频信号干扰的方法及接收机
CN108141785B (zh) * 2015-10-27 2020-12-08 华为技术有限公司 一种同频干扰的消除方法及装置

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Publication number Priority date Publication date Assignee Title
EP0637139B1 (en) * 1993-01-19 2003-04-09 Ntt Mobile Communications Network Inc. Method for removing interference wave, receiver and communication system which use the method
FR2708669B1 (fr) 1993-08-05 1995-09-08 Snecma Système de ventilation des disques et du stator de turbine d'un turboréacteur.
EP0684708B1 (en) * 1993-12-15 2005-10-26 Ntt Mobile Communications Network Inc. Adaptive equalizer
GB2286506B (en) * 1994-02-10 1997-12-10 Roke Manor Research Improvements in or relating to co-channel interferance suppression systems
FI102797B1 (fi) 1994-10-07 1999-02-15 Nokia Telecommunications Oy Signaalin ilmaisumenetelmä TDMA-matkaviestinjärjestelmän vastaanottimessa sekä menetelmän toteuttava vastaanotin
JP2689926B2 (ja) * 1994-12-05 1997-12-10 日本電気株式会社 ダイバーシティ受信機
US5710797A (en) * 1995-05-23 1998-01-20 Libit Signal Processing Inc. Method and apparatus for digital communication in the presence of closely spaced adjacent channels
FI103539B1 (fi) 1996-07-03 1999-07-15 Nokia Telecommunications Oy Menetelmä samankanavasignaalien voimakkuuden määrittämiseksi ja vastaanotin
US5933768A (en) 1997-02-28 1999-08-03 Telefonaktiebolaget L/M Ericsson Receiver apparatus, and associated method, for receiving a receive signal transmitted upon a channel susceptible to interference
JP3935969B2 (ja) * 1997-03-25 2007-06-27 シーメンス アクチエンゲゼルシヤフト 無線チャネルを介して伝送される受信信号からチャネルを見積もるための方法
FI104019B (fi) 1997-06-19 1999-10-29 Nokia Telecommunications Oy Signaalin ilmaisumenetelmä digitaalisen solukkoradioverkon vastaanottimessa
US6249518B1 (en) * 1998-08-07 2001-06-19 Nortel Networks Limited TDMA single antenna co-channel interference cancellation
US6304618B1 (en) * 1998-08-31 2001-10-16 Ericsson Inc. Methods and systems for reducing co-channel interference using multiple timings for a received signal

Also Published As

Publication number Publication date
CN1350723A (zh) 2002-05-22
NO20004315D0 (no) 2000-08-30
WO2000041317A2 (en) 2000-07-13
FI982857A0 (fi) 1998-12-31
FI982857A (fi) 2000-07-01
US6714609B1 (en) 2004-03-30
AU3048400A (en) 2000-07-24
WO2000041317A3 (en) 2000-09-21
EP1066687A2 (en) 2001-01-10

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