DE69737932D1 - Verfahren und vorrichtung zur interferenzunterdrückung und abwärtsrichtstrahlbildung in einem zellularen funkkommunikationssystem - Google Patents

Verfahren und vorrichtung zur interferenzunterdrückung und abwärtsrichtstrahlbildung in einem zellularen funkkommunikationssystem

Info

Publication number
DE69737932D1
DE69737932D1 DE69737932T DE69737932T DE69737932D1 DE 69737932 D1 DE69737932 D1 DE 69737932D1 DE 69737932 T DE69737932 T DE 69737932T DE 69737932 T DE69737932 T DE 69737932T DE 69737932 D1 DE69737932 D1 DE 69737932D1
Authority
DE
Germany
Prior art keywords
communication system
radio communication
cellular radio
interference suppression
line ironing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69737932T
Other languages
English (en)
Other versions
DE69737932T2 (de
Inventor
Ulf Forssen
Thomas Oestman
Gregory E Bottomley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69737932D1 publication Critical patent/DE69737932D1/de
Application granted granted Critical
Publication of DE69737932T2 publication Critical patent/DE69737932T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B7/0845—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
    • H04B7/04—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
    • H04B7/10—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
DE69737932T 1996-05-31 1997-05-27 Verfahren und vorrichtung zur interferenzunterdrückung und abwärtsrichtstrahlbildung in einem zellularen funkkommunikationssystem Expired - Lifetime DE69737932T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US655930 1996-05-31
US08/655,930 US6173014B1 (en) 1994-08-02 1996-05-31 Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radio communications system
PCT/SE1997/000910 WO1997045968A1 (en) 1996-05-31 1997-05-27 Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radiocommunications system

Publications (2)

Publication Number Publication Date
DE69737932D1 true DE69737932D1 (de) 2007-08-30
DE69737932T2 DE69737932T2 (de) 2007-12-06

Family

ID=24630976

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69737932T Expired - Lifetime DE69737932T2 (de) 1996-05-31 1997-05-27 Verfahren und vorrichtung zur interferenzunterdrückung und abwärtsrichtstrahlbildung in einem zellularen funkkommunikationssystem

Country Status (12)

Country Link
US (1) US6173014B1 (de)
EP (1) EP0903018B1 (de)
JP (1) JP2000511370A (de)
CN (1) CN1104105C (de)
AR (1) AR007302A1 (de)
AU (1) AU727141B2 (de)
BR (1) BR9709488B1 (de)
CA (1) CA2255845C (de)
DE (1) DE69737932T2 (de)
MY (1) MY118073A (de)
TW (1) TW358268B (de)
WO (1) WO1997045968A1 (de)

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Also Published As

Publication number Publication date
US6173014B1 (en) 2001-01-09
BR9709488A (pt) 1999-08-10
TW358268B (en) 1999-05-11
AR007302A1 (es) 1999-10-27
BR9709488B1 (pt) 2009-01-13
WO1997045968A1 (en) 1997-12-04
JP2000511370A (ja) 2000-08-29
CN1104105C (zh) 2003-03-26
EP0903018B1 (de) 2007-07-18
CN1220787A (zh) 1999-06-23
AU727141B2 (en) 2000-12-07
EP0903018A1 (de) 1999-03-24
AU3053597A (en) 1998-01-05
CA2255845A1 (en) 1997-12-04
CA2255845C (en) 2006-02-21
MY118073A (en) 2004-08-30
DE69737932T2 (de) 2007-12-06

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