DE3681887D1 - Aufbau von ensemblemodems fuer unvollkommene uebertragungsmedien. - Google Patents

Aufbau von ensemblemodems fuer unvollkommene uebertragungsmedien.

Info

Publication number
DE3681887D1
DE3681887D1 DE8686903760T DE3681887T DE3681887D1 DE 3681887 D1 DE3681887 D1 DE 3681887D1 DE 8686903760 T DE8686903760 T DE 8686903760T DE 3681887 T DE3681887 T DE 3681887T DE 3681887 D1 DE3681887 D1 DE 3681887D1
Authority
DE
Germany
Prior art keywords
ensemble
modems
transmission media
imperfect transmission
imperfect
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.)
Expired - Fee Related
Application number
DE8686903760T
Other languages
English (en)
Inventor
Dirk Hughes-Hartogs
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.)
Telebit Corp
Original Assignee
Telebit 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 Telebit Corp filed Critical Telebit Corp
Application granted granted Critical
Publication of DE3681887D1 publication Critical patent/DE3681887D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Hydrogenated Pyridines (AREA)
  • Telephonic Communication Services (AREA)
DE8686903760T 1985-05-20 1986-05-05 Aufbau von ensemblemodems fuer unvollkommene uebertragungsmedien. Expired - Fee Related DE3681887D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/736,200 US4679227A (en) 1985-05-20 1985-05-20 Ensemble modem structure for imperfect transmission media
PCT/US1986/000983 WO1986007223A1 (en) 1985-05-20 1986-05-05 Ensemble modem structure for imperfect transmission media

Publications (1)

Publication Number Publication Date
DE3681887D1 true DE3681887D1 (de) 1991-11-14

Family

ID=24958915

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686903760T Expired - Fee Related DE3681887D1 (de) 1985-05-20 1986-05-05 Aufbau von ensemblemodems fuer unvollkommene uebertragungsmedien.

Country Status (17)

Country Link
US (2) US4679227A (de)
EP (1) EP0224556B1 (de)
JP (1) JPH063956B2 (de)
KR (1) KR880700582A (de)
CN (4) CN1011461B (de)
AU (3) AU587037B2 (de)
BR (1) BR8606677A (de)
CA (1) CA1251586A (de)
DE (1) DE3681887D1 (de)
DK (1) DK31087A (de)
ES (2) ES8708271A1 (de)
IL (1) IL78594A0 (de)
MX (1) MX164557B (de)
NO (1) NO870219L (de)
PT (1) PT82600B (de)
WO (1) WO1986007223A1 (de)
ZA (1) ZA862718B (de)

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* Cited by examiner, † Cited by third party
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CN1048775A (zh) 1991-01-23
AU609355B2 (en) 1991-04-26
AU587037B2 (en) 1989-08-03
AU6009690A (en) 1990-11-15
KR880700582A (ko) 1988-03-15
CN86103406A (zh) 1986-11-26
BR8606677A (pt) 1987-08-11
US4731816A (en) 1988-03-15
DK31087D0 (da) 1987-01-20
JPS62502932A (ja) 1987-11-19
AU602815B2 (en) 1990-10-25
AU3528189A (en) 1989-09-21
ES557355A0 (es) 1987-12-01
CA1251586A (en) 1989-03-21
MX164557B (es) 1992-08-28
DK31087A (da) 1987-01-20
ES8801072A1 (es) 1987-12-01

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