HK1032863A1 - Practical space-time radio method for cdma communication capacity enhancement - Google Patents

Practical space-time radio method for cdma communication capacity enhancement

Info

Publication number
HK1032863A1
HK1032863A1 HK01103458A HK01103458A HK1032863A1 HK 1032863 A1 HK1032863 A1 HK 1032863A1 HK 01103458 A HK01103458 A HK 01103458A HK 01103458 A HK01103458 A HK 01103458A HK 1032863 A1 HK1032863 A1 HK 1032863A1
Authority
HK
Hong Kong
Prior art keywords
downlink
signal
approach
training sequence
enhance
Prior art date
Application number
HK01103458A
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
Publication of HK1032863A1 publication Critical patent/HK1032863A1/xx

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
    • H04B7/0891—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
    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Radio Relay Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transceivers (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Electrotherapy Devices (AREA)
  • Transmitters (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
HK01103458A 1997-09-15 2001-05-19 Practical space-time radio method for cdma communication capacity enhancement HK1032863A1 (en)

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
HK1032863A1 true HK1032863A1 (en) 2001-08-03

Family

ID=27535886

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01103458A HK1032863A1 (en) 1997-09-15 2001-05-19 Practical space-time radio method for cdma communication capacity enhancement

Country Status (14)

Country Link
EP (1) EP1062746B1 (ja)
JP (2) JP4421106B2 (ja)
KR (1) KR100650230B1 (ja)
CN (1) CN1305230C (ja)
AT (1) ATE262757T1 (ja)
AU (1) AU9488598A (ja)
CA (1) CA2302547C (ja)
DE (1) DE69822672T2 (ja)
HK (1) HK1032863A1 (ja)
ID (1) ID25859A (ja)
IL (1) IL135099A0 (ja)
NO (1) NO20001026L (ja)
PL (1) PL339462A1 (ja)
WO (1) WO1999014870A2 (ja)

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Also Published As

Publication number Publication date
KR100650230B1 (ko) 2006-11-24
ID25859A (id) 2000-11-09
AU9488598A (en) 1999-04-05
KR20010030605A (ko) 2001-04-16
NO20001026D0 (no) 2000-02-29
EP1062746B1 (en) 2004-03-24
CN1305230C (zh) 2007-03-14
CN1278971A (zh) 2001-01-03
JP4421106B2 (ja) 2010-02-24
CA2302547A1 (en) 1999-03-25
IL135099A0 (en) 2001-05-20
DE69822672T2 (de) 2005-02-17
EP1062746A2 (en) 2000-12-27
NO20001026L (no) 2000-05-15
JP2010035188A (ja) 2010-02-12
PL339462A1 (en) 2000-12-18
DE69822672D1 (de) 2004-04-29
WO1999014870A3 (en) 1999-06-24
CA2302547C (en) 2005-06-14
JP2003521822A (ja) 2003-07-15
ATE262757T1 (de) 2004-04-15
WO1999014870A2 (en) 1999-03-25

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Legal Events

Date Code Title Description
CHRG Changes in the register

Free format text: FROM METAWAVE COMMUNICATIONS CORPORATION ? ???????? TO KATHREIN-WERKE KG ??

PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20110915