ATE387769T1 - Zyklische verzögerungsdiversität zur verringerung der intersymbolinterferenz in ofdm-systemen - Google Patents

Zyklische verzögerungsdiversität zur verringerung der intersymbolinterferenz in ofdm-systemen

Info

Publication number
ATE387769T1
ATE387769T1 AT01958741T AT01958741T ATE387769T1 AT E387769 T1 ATE387769 T1 AT E387769T1 AT 01958741 T AT01958741 T AT 01958741T AT 01958741 T AT01958741 T AT 01958741T AT E387769 T1 ATE387769 T1 AT E387769T1
Authority
AT
Austria
Prior art keywords
transmitted
symbol
reducing
cyclic delay
ofdm systems
Prior art date
Application number
AT01958741T
Other languages
English (en)
Inventor
Peter Larsson
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE387769T1 publication Critical patent/ATE387769T1/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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04B7/0676—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 random or pseudo-random delays

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Transmission System (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
AT01958741T 2000-09-22 2001-08-02 Zyklische verzögerungsdiversität zur verringerung der intersymbolinterferenz in ofdm-systemen ATE387769T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/667,504 US6842487B1 (en) 2000-09-22 2000-09-22 Cyclic delay diversity for mitigating intersymbol interference in OFDM systems

Publications (1)

Publication Number Publication Date
ATE387769T1 true ATE387769T1 (de) 2008-03-15

Family

ID=24678484

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01958741T ATE387769T1 (de) 2000-09-22 2001-08-02 Zyklische verzögerungsdiversität zur verringerung der intersymbolinterferenz in ofdm-systemen

Country Status (10)

Country Link
US (1) US6842487B1 (de)
EP (1) EP1319278B1 (de)
JP (1) JP4988137B2 (de)
CN (1) CN1291563C (de)
AT (1) ATE387769T1 (de)
AU (1) AU2001280362A1 (de)
CA (1) CA2421768C (de)
DE (1) DE60133015T2 (de)
ES (1) ES2301559T3 (de)
WO (1) WO2002025857A1 (de)

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US6842487B1 (en) 2005-01-11
EP1319278B1 (de) 2008-02-27
CA2421768C (en) 2012-06-26
JP4988137B2 (ja) 2012-08-01
DE60133015D1 (de) 2008-04-10
CA2421768A1 (en) 2002-03-28
CN1291563C (zh) 2006-12-20
WO2002025857A1 (en) 2002-03-28
EP1319278A1 (de) 2003-06-18
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AU2001280362A1 (en) 2002-04-02
ES2301559T3 (es) 2008-07-01

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