ATE409987T1 - Verwendung von antennengruppen in einer mehrwegumgebung - Google Patents

Verwendung von antennengruppen in einer mehrwegumgebung

Info

Publication number
ATE409987T1
ATE409987T1 AT04709462T AT04709462T ATE409987T1 AT E409987 T1 ATE409987 T1 AT E409987T1 AT 04709462 T AT04709462 T AT 04709462T AT 04709462 T AT04709462 T AT 04709462T AT E409987 T1 ATE409987 T1 AT E409987T1
Authority
AT
Austria
Prior art keywords
signals
directional beams
antenna groups
way environment
information
Prior art date
Application number
AT04709462T
Other languages
English (en)
Inventor
Paul Dent
Original Assignee
Ericsson 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 Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of ATE409987T1 publication Critical patent/ATE409987T1/de

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
    • H04B7/0667—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 delayed versions of same signal
    • H04B7/0671—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 delayed versions of same signal using different delays between antennas
    • 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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • 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
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
AT04709462T 2003-02-10 2004-02-09 Verwendung von antennengruppen in einer mehrwegumgebung ATE409987T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/361,244 US7184492B2 (en) 2003-02-10 2003-02-10 Using antenna arrays in multipath environment

Publications (1)

Publication Number Publication Date
ATE409987T1 true ATE409987T1 (de) 2008-10-15

Family

ID=32824177

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04709462T ATE409987T1 (de) 2003-02-10 2004-02-09 Verwendung von antennengruppen in einer mehrwegumgebung

Country Status (5)

Country Link
US (1) US7184492B2 (de)
EP (1) EP1597885B1 (de)
AT (1) ATE409987T1 (de)
DE (1) DE602004016825D1 (de)
WO (1) WO2004073104A2 (de)

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JP5663284B2 (ja) * 2010-12-06 2015-02-04 東芝テック株式会社 アンテナ切替システム
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US9287616B2 (en) 2011-08-24 2016-03-15 Lattice Semiconductor Corporation Calibrating a retro-directive array for an asymmetric wireless link
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Also Published As

Publication number Publication date
DE602004016825D1 (de) 2008-11-13
EP1597885B1 (de) 2008-10-01
US7184492B2 (en) 2007-02-27
EP1597885A4 (de) 2006-03-08
US20040156443A1 (en) 2004-08-12
WO2004073104A3 (en) 2005-06-09
EP1597885A2 (de) 2005-11-23
WO2004073104A2 (en) 2004-08-26

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