ES2139558T1 - Estacion de comunicacion con antenas multiples. - Google Patents

Estacion de comunicacion con antenas multiples.

Info

Publication number
ES2139558T1
ES2139558T1 ES98923728T ES98923728T ES2139558T1 ES 2139558 T1 ES2139558 T1 ES 2139558T1 ES 98923728 T ES98923728 T ES 98923728T ES 98923728 T ES98923728 T ES 98923728T ES 2139558 T1 ES2139558 T1 ES 2139558T1
Authority
ES
Spain
Prior art keywords
adder
antennas
coupled
distortion
communication station
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.)
Pending
Application number
ES98923728T
Other languages
English (en)
Inventor
Gary R Lomp
Leonid Kazerkevich
Jeffrey S Polan
David K Mesecher
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.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
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 InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of ES2139558T1 publication Critical patent/ES2139558T1/es
Pending 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
    • H04B7/0891—Space-time diversity
    • H04B7/0894—Space-time diversity using different delays between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • H04B17/22—Monitoring; Testing of receivers for calibration; for correcting measurements for calibration of the receiver components
    • H04B17/221—Monitoring; Testing of receivers for calibration; for correcting measurements for calibration of the receiver components of receiver antennas, e.g. as to amplitude or phase
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

Una estación de comunicaciones para uso en un sistema de comunicaciones CDMA que comprende: un sistema de antena que incluye una pluralidad de antenas para recibir señales de comunicaciones CDMA; un sumador asociado con dichas antenas y que tiene una salida para emitir una señal combinada; una primera de dichas antenas acoplada directamente a dicho sumador; una segunda de dichas antenas asociada con una primera unidad de retraso que imparte un primer retraso fijo a las señales recibidas por dicha segunda antena; y estando acoplada dicha primera unidad de retraso a dicho sumador, por lo que se emite una señal combinada que tiene una distorsión conocida correspondiente al menos a dicho primer retraso fijo; un receptor acoplado a la salida de dicho sumador; y un modem para recibir una señal de comunicaciones individual asociada con un código CDMA único acoplado a dicho receptor, incluyendo dicho modem medios de distorsión-compensación para compensar al menos dicha distorsión de señal conocida.
ES98923728T 1997-10-31 1998-05-26 Estacion de comunicacion con antenas multiples. Pending ES2139558T1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/961,482 US6259687B1 (en) 1997-10-31 1997-10-31 Communication station with multiple antennas

Publications (1)

Publication Number Publication Date
ES2139558T1 true ES2139558T1 (es) 2000-02-16

Family

ID=25504528

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98923728T Pending ES2139558T1 (es) 1997-10-31 1998-05-26 Estacion de comunicacion con antenas multiples.

Country Status (10)

Country Link
US (8) US6259687B1 (es)
EP (1) EP0970571A1 (es)
JP (3) JP2001508603A (es)
KR (6) KR100722215B1 (es)
CN (2) CN1320786C (es)
AU (1) AU7595198A (es)
CA (2) CA2561782A1 (es)
DE (1) DE970571T1 (es)
ES (1) ES2139558T1 (es)
WO (1) WO1999023767A1 (es)

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Also Published As

Publication number Publication date
US6584091B2 (en) 2003-06-24
KR100722215B1 (ko) 2007-05-29
US7050418B2 (en) 2006-05-23
KR100599137B1 (ko) 2006-07-12
US20070091865A1 (en) 2007-04-26
JP2006042390A (ja) 2006-02-09
US7145893B2 (en) 2006-12-05
US6259687B1 (en) 2001-07-10
KR20060094102A (ko) 2006-08-28
US6418135B1 (en) 2002-07-09
JP2008048460A (ja) 2008-02-28
KR20070033481A (ko) 2007-03-26
US20030043776A1 (en) 2003-03-06
US20040161060A1 (en) 2004-08-19
KR20000069704A (ko) 2000-11-25
US20030179819A1 (en) 2003-09-25
AU7595198A (en) 1999-05-24
WO1999023767A1 (en) 1999-05-14
DE970571T1 (de) 2000-04-06
CN1155166C (zh) 2004-06-23
CA2561782A1 (en) 1999-05-14
CN1538636A (zh) 2004-10-20
KR100797502B1 (ko) 2008-01-24
CA2273029A1 (en) 1999-05-14
US20020071420A1 (en) 2002-06-13
EP0970571A1 (en) 2000-01-12
KR20070046968A (ko) 2007-05-03
US20020093932A1 (en) 2002-07-18
KR100722214B1 (ko) 2007-05-29
CN1242890A (zh) 2000-01-26
JP2001508603A (ja) 2001-06-26
US6466567B2 (en) 2002-10-15
US6452918B1 (en) 2002-09-17
KR100830484B1 (ko) 2008-05-20
CN1320786C (zh) 2007-06-06
US20020061004A1 (en) 2002-05-23
KR20070106639A (ko) 2007-11-02
KR20060029136A (ko) 2006-04-04
CA2273029C (en) 2007-01-09

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