NO993710L - FremgangsmÕte og arrangement for justering av et antennemönster - Google Patents

FremgangsmÕte og arrangement for justering av et antennemönster

Info

Publication number
NO993710L
NO993710L NO993710A NO993710A NO993710L NO 993710 L NO993710 L NO 993710L NO 993710 A NO993710 A NO 993710A NO 993710 A NO993710 A NO 993710A NO 993710 L NO993710 L NO 993710L
Authority
NO
Norway
Prior art keywords
antenna pattern
adjusting
arrangement
antenna
coefficients
Prior art date
Application number
NO993710A
Other languages
English (en)
Other versions
NO993710D0 (no
Inventor
Lauri Stohle
Jari Pekkarinen
Esko Erkkilo
Original Assignee
Nokia Telecommunications 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 Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO993710D0 publication Critical patent/NO993710D0/no
Publication of NO993710L publication Critical patent/NO993710L/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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

En fremgangsmåte og et arrangement for justering av et antennemønster, spesielt i et SDMA-system hvor en sender og en mottaker innbefatter minst to antenner. Basisbånd-antennesignaler multipliseres med koeffisienter for forming av antennemønsteret, for å frembringe et ønsket antennemønster. Fasen og styr- ken for et basisbånd-antennesignal måles. På grunnlag av målingen kompense- res forskjellene i fase og styrke mellom antennesignalene ved å justere koeffi- sientene som former antennemønsteret.
NO993710A 1997-12-02 1999-07-30 FremgangsmÕte og arrangement for justering av et antennemönster NO993710L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/982,693 US5936569A (en) 1997-12-02 1997-12-02 Method and arrangement for adjusting antenna pattern
PCT/FI1998/000935 WO1999029049A2 (en) 1997-12-02 1998-12-01 Method and arrangement for adjusting antenna pattern

Publications (2)

Publication Number Publication Date
NO993710D0 NO993710D0 (no) 1999-07-30
NO993710L true NO993710L (no) 1999-07-30

Family

ID=25529416

Family Applications (1)

Application Number Title Priority Date Filing Date
NO993710A NO993710L (no) 1997-12-02 1999-07-30 FremgangsmÕte og arrangement for justering av et antennemönster

Country Status (7)

Country Link
US (1) US5936569A (no)
EP (1) EP0968573A2 (no)
JP (1) JP2001510668A (no)
CN (1) CN1121098C (no)
AU (1) AU1436799A (no)
NO (1) NO993710L (no)
WO (1) WO1999029049A2 (no)

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Also Published As

Publication number Publication date
NO993710D0 (no) 1999-07-30
WO1999029049A3 (en) 1999-08-19
WO1999029049A2 (en) 1999-06-10
CN1255256A (zh) 2000-05-31
AU1436799A (en) 1999-06-16
US5936569A (en) 1999-08-10
JP2001510668A (ja) 2001-07-31
CN1121098C (zh) 2003-09-10
EP0968573A2 (en) 2000-01-05

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