NO970389L - Fremgangsmåte og apparat ved kombinert interferensbehandling, spesielt i multi-antenne digitale cellulære kommunikasjonssystemer - Google Patents

Fremgangsmåte og apparat ved kombinert interferensbehandling, spesielt i multi-antenne digitale cellulære kommunikasjonssystemer

Info

Publication number
NO970389L
NO970389L NO970389A NO970389A NO970389L NO 970389 L NO970389 L NO 970389L NO 970389 A NO970389 A NO 970389A NO 970389 A NO970389 A NO 970389A NO 970389 L NO970389 L NO 970389L
Authority
NO
Norway
Prior art keywords
channel
received signal
signals
antennas
interference
Prior art date
Application number
NO970389A
Other languages
English (en)
Other versions
NO970389D0 (no
Inventor
Gregory E Bottomley
Original Assignee
Ericsson Ge Mobile 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 Ge Mobile Inc filed Critical Ericsson Ge Mobile Inc
Publication of NO970389D0 publication Critical patent/NO970389D0/no
Publication of NO970389L publication Critical patent/NO970389L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity
    • 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
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Transceivers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Et digitalt radiokommunikasjonssystem hvor de skade- lige virkningene av fading, tidsdispersjon og inter- ferens i kanalen reduseres ved å bruke kombinert interferens-avvisning og -spredning ("interference rejection and diversity combining"). Digitale sig- naler som er representative for digitale symbolsek- venser, sendes gjennom en radiokanal hvori signalene kan korrumperes av fading, tidsdispersjon og inter- ferens. De korrumperte signaler mottas av en mottak- er som har én eller flere antenner. De mottatte signaler prosesseres for å danne en mottatt signal- prøvestrøra rjj(kTg) for hver antenne. Estimerte mot- tatte signalprøver lages for hver antenne ved å kombinere hypotetiske signalsekvenser og modeller til hver kanal. De mottatte signalprøver og de esti- merte mottatte signalprøver prosesseres sammen med en estimering av skadekorrelasjonsegenskapene ("im- pairment correlation properties") for å lage gren- metrikk ("branch metrics") som brukes av en Viter- bi-, eller andre sekvensestimerings-, algoritme(r). Grenmetrikkprosessoren kan ta én av flere konfigura- sjoner avhengig av om kanalen er tidsvarierende eller ikke.
NO970389A 1994-08-02 1997-01-29 Fremgangsmåte og apparat ved kombinert interferensbehandling, spesielt i multi-antenne digitale cellulære kommunikasjonssystemer NO970389L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/284,775 US5680419A (en) 1994-08-02 1994-08-02 Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems
PCT/US1995/009484 WO1996004738A1 (en) 1994-08-02 1995-07-28 Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems

Publications (2)

Publication Number Publication Date
NO970389D0 NO970389D0 (no) 1997-01-29
NO970389L true NO970389L (no) 1997-04-02

Family

ID=23091485

Family Applications (1)

Application Number Title Priority Date Filing Date
NO970389A NO970389L (no) 1994-08-02 1997-01-29 Fremgangsmåte og apparat ved kombinert interferensbehandling, spesielt i multi-antenne digitale cellulære kommunikasjonssystemer

Country Status (15)

Country Link
US (1) US5680419A (no)
EP (1) EP0775405B1 (no)
JP (1) JPH11509377A (no)
KR (1) KR100297350B1 (no)
CN (1) CN1082300C (no)
AT (1) ATE201543T1 (no)
AU (1) AU691953B2 (no)
BR (1) BR9508455A (no)
CA (1) CA2195849C (no)
DE (1) DE69521050T2 (no)
FI (1) FI970414A (no)
MX (1) MX9700707A (no)
NO (1) NO970389L (no)
RU (1) RU2137302C1 (no)
WO (1) WO1996004738A1 (no)

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Also Published As

Publication number Publication date
EP0775405B1 (en) 2001-05-23
JPH11509377A (ja) 1999-08-17
ATE201543T1 (de) 2001-06-15
DE69521050D1 (de) 2001-06-28
BR9508455A (pt) 1998-06-09
AU691953B2 (en) 1998-05-28
CN1082300C (zh) 2002-04-03
AU3150795A (en) 1996-03-04
NO970389D0 (no) 1997-01-29
KR100297350B1 (ko) 2001-10-25
CA2195849A1 (en) 1996-02-03
FI970414A0 (fi) 1997-01-31
FI970414A (fi) 1997-03-27
CN1157073A (zh) 1997-08-13
US5680419A (en) 1997-10-21
MX9700707A (es) 1997-06-28
WO1996004738A1 (en) 1996-02-15
DE69521050T2 (de) 2001-11-29
RU2137302C1 (ru) 1999-09-10
CA2195849C (en) 2005-05-17
EP0775405A1 (en) 1997-05-28

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