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ID25666A - Sistem dan metode akses berganda - Google Patents

Sistem dan metode akses berganda

Info

Publication number
ID25666A
ID25666A IDW20001770A ID20001770A ID25666A ID 25666 A ID25666 A ID 25666A ID W20001770 A IDW20001770 A ID W20001770A ID 20001770 A ID20001770 A ID 20001770A ID 25666 A ID25666 A ID 25666A
Authority
ID
Indonesia
Prior art keywords
processing
frequency
protocols
wideband
reduce
Prior art date
Application number
IDW20001770A
Other languages
English (en)
Indonesian (id)
Inventor
Steven J Shattil
Original Assignee
Steven J Shattil
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 Steven J Shattil filed Critical Steven J Shattil
Publication of ID25666A publication Critical patent/ID25666A/id

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • H04B1/7115Constructive combining of multi-path signals, i.e. RAKE receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/04Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/7163Spread spectrum techniques using impulse radio
    • H04B1/717Pulse-related aspects
    • H04B1/7174Pulse generation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12Frequency diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0077Multicode, e.g. multiple codes assigned to one user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0298Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2626Arrangements specific to the transmitter only
    • H04L27/2627Modulators
    • H04L27/2637Modulators with direct modulation of individual subcarriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2697Multicarrier modulation systems in combination with other modulation techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0016Time-frequency-code
    • H04L5/0021Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Optical Communication System (AREA)
  • Special Wing (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Selective Calling Equipment (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IDW20001770A 1998-02-12 1999-02-10 Sistem dan metode akses berganda ID25666A (id)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/022,950 US5955992A (en) 1998-02-12 1998-02-12 Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter

Publications (1)

Publication Number Publication Date
ID25666A true ID25666A (id) 2000-10-19

Family

ID=21812271

Family Applications (1)

Application Number Title Priority Date Filing Date
IDW20001770A ID25666A (id) 1998-02-12 1999-02-10 Sistem dan metode akses berganda

Country Status (14)

Country Link
US (6) US5955992A (pt)
EP (1) EP1053615B1 (pt)
JP (1) JP4222728B2 (pt)
KR (1) KR100734448B1 (pt)
CN (1) CN100355230C (pt)
AT (1) ATE300817T1 (pt)
AU (1) AU762685B2 (pt)
BR (1) BR9907892A (pt)
CA (1) CA2321748A1 (pt)
DE (1) DE69926343T2 (pt)
EA (1) EA002914B1 (pt)
ID (1) ID25666A (pt)
IL (1) IL137731A0 (pt)
WO (1) WO1999041871A1 (pt)

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