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AU2001283477A1 - Systems and methods for communicating spread spectrum signals using variable signal constellations - Google Patents

Systems and methods for communicating spread spectrum signals using variable signal constellations

Info

Publication number
AU2001283477A1
AU2001283477A1 AU2001283477A AU8347701A AU2001283477A1 AU 2001283477 A1 AU2001283477 A1 AU 2001283477A1 AU 2001283477 A AU2001283477 A AU 2001283477A AU 8347701 A AU8347701 A AU 8347701A AU 2001283477 A1 AU2001283477 A1 AU 2001283477A1
Authority
AU
Australia
Prior art keywords
systems
methods
spread spectrum
variable signal
spectrum signals
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.)
Abandoned
Application number
AU2001283477A
Other languages
English (en)
Inventor
Paul Dent
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Inc filed Critical Ericsson Inc
Publication of AU2001283477A1 publication Critical patent/AU2001283477A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0066—Parallel concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488—Multiresolution systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
AU2001283477A 2000-10-11 2001-08-22 Systems and methods for communicating spread spectrum signals using variable signal constellations Abandoned AU2001283477A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/686,304 US6934317B1 (en) 2000-10-11 2000-10-11 Systems and methods for communicating spread spectrum signals using variable signal constellations
US09/686,304 2000-10-11
PCT/US2001/026218 WO2002031985A2 (fr) 2000-10-11 2001-08-22 Systemes et procedes permettant de communiquer des signaux a spectre etale au moyen de constellations de signaux variables

Publications (1)

Publication Number Publication Date
AU2001283477A1 true AU2001283477A1 (en) 2002-04-22

Family

ID=24755761

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001283477A Abandoned AU2001283477A1 (en) 2000-10-11 2001-08-22 Systems and methods for communicating spread spectrum signals using variable signal constellations

Country Status (4)

Country Link
US (1) US6934317B1 (fr)
EP (1) EP1325580A2 (fr)
AU (1) AU2001283477A1 (fr)
WO (1) WO2002031985A2 (fr)

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Also Published As

Publication number Publication date
US6934317B1 (en) 2005-08-23
WO2002031985A2 (fr) 2002-04-18
EP1325580A2 (fr) 2003-07-09
WO2002031985A3 (fr) 2003-03-06

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