ATE262757T1 - Praktisches raum-zeit-funkübertragungsverfahren zur verbesserung der cdma-übertragungskapazität - Google Patents

Praktisches raum-zeit-funkübertragungsverfahren zur verbesserung der cdma-übertragungskapazität

Info

Publication number
ATE262757T1
ATE262757T1 AT98948276T AT98948276T ATE262757T1 AT E262757 T1 ATE262757 T1 AT E262757T1 AT 98948276 T AT98948276 T AT 98948276T AT 98948276 T AT98948276 T AT 98948276T AT E262757 T1 ATE262757 T1 AT E262757T1
Authority
AT
Austria
Prior art keywords
downlink
signal
approach
cdma
training sequence
Prior art date
Application number
AT98948276T
Other languages
English (en)
Inventor
Shimon B Scherzer
Original Assignee
Kathrein Werke Kg
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
Priority claimed from US08/929,638 external-priority patent/US6108565A/en
Application filed by Kathrein Werke Kg filed Critical Kathrein Werke Kg
Application granted granted Critical
Publication of ATE262757T1 publication Critical patent/ATE262757T1/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
    • 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
    • H04B7/0891—Space-time diversity
    • H04B7/0897—Space-time diversity using beamforming per multi-path, e.g. to cope with different directions of arrival [DOA] at different multi-paths
    • 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
    • H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector 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
    • 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

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Electrotherapy Devices (AREA)
  • Transceivers (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmitters (AREA)
AT98948276T 1997-09-15 1998-09-15 Praktisches raum-zeit-funkübertragungsverfahren zur verbesserung der cdma-übertragungskapazität ATE262757T1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US08/929,638 US6108565A (en) 1997-09-15 1997-09-15 Practical space-time radio method for CDMA communication capacity enhancement
US7147398P 1998-01-13 1998-01-13
US7797998P 1998-03-13 1998-03-13
US9315098P 1998-07-17 1998-07-17
US9734098P 1998-08-20 1998-08-20
PCT/US1998/019299 WO1999014870A2 (en) 1997-09-15 1998-09-15 Practical space-time radio method for cdma communication capacity enhancement

Publications (1)

Publication Number Publication Date
ATE262757T1 true ATE262757T1 (de) 2004-04-15

Family

ID=27535886

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98948276T ATE262757T1 (de) 1997-09-15 1998-09-15 Praktisches raum-zeit-funkübertragungsverfahren zur verbesserung der cdma-übertragungskapazität

Country Status (13)

Country Link
EP (1) EP1062746B1 (de)
JP (2) JP4421106B2 (de)
KR (1) KR100650230B1 (de)
CN (1) CN1305230C (de)
AT (1) ATE262757T1 (de)
AU (1) AU9488598A (de)
CA (1) CA2302547C (de)
DE (1) DE69822672T2 (de)
ID (1) ID25859A (de)
IL (1) IL135099A0 (de)
NO (1) NO20001026L (de)
PL (1) PL339462A1 (de)
WO (1) WO1999014870A2 (de)

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CN1972165B (zh) * 2006-12-15 2010-12-08 华为技术有限公司 一种干扰检测方法及装置
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Also Published As

Publication number Publication date
KR100650230B1 (ko) 2006-11-24
WO1999014870A3 (en) 1999-06-24
CN1305230C (zh) 2007-03-14
IL135099A0 (en) 2001-05-20
JP4421106B2 (ja) 2010-02-24
JP2003521822A (ja) 2003-07-15
HK1032863A1 (en) 2001-08-03
KR20010030605A (ko) 2001-04-16
WO1999014870A2 (en) 1999-03-25
PL339462A1 (en) 2000-12-18
CA2302547C (en) 2005-06-14
CA2302547A1 (en) 1999-03-25
EP1062746B1 (de) 2004-03-24
NO20001026L (no) 2000-05-15
NO20001026D0 (no) 2000-02-29
EP1062746A2 (de) 2000-12-27
ID25859A (id) 2000-11-09
CN1278971A (zh) 2001-01-03
DE69822672T2 (de) 2005-02-17
JP2010035188A (ja) 2010-02-12
DE69822672D1 (de) 2004-04-29
AU9488598A (en) 1999-04-05

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