JPS55137743A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS55137743A
JPS55137743A JP4700879A JP4700879A JPS55137743A JP S55137743 A JPS55137743 A JP S55137743A JP 4700879 A JP4700879 A JP 4700879A JP 4700879 A JP4700879 A JP 4700879A JP S55137743 A JPS55137743 A JP S55137743A
Authority
JP
Japan
Prior art keywords
error
data
transmitted
transmission
disallowance
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
JP4700879A
Other languages
Japanese (ja)
Inventor
Takashi Kawade
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4700879A priority Critical patent/JPS55137743A/en
Publication of JPS55137743A publication Critical patent/JPS55137743A/en
Pending 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To increase an effective data volume which can be transmitted within a unit time, by adding error allowance/disallowance information to data to be transmitted and by transmitting data without addition of information for error control if error is allowable. CONSTITUTION:Transmission data from input terminal 11 is stored in transmission data buffer 12 temporarily, and short data, for example, below 4KB is transmitted as it is, and long data is transmitted while being segmented by 4KB. When a transmission error allowance/disallowance signal is inputted through terminal 14, data is transmitted to error re-transmission circuit 22 while adding or not adding information FCS21 for error control after transmission data according to the error allowance/disallowance signal. Error allowance/disallowance information 16 is selected in the receiving side; and if error is allowable, a data receiving end signal is transmitted to the transmission side; and if error is not allowable, a re-transmission request signal is transmitted to the transmission side when error is detected.
JP4700879A 1979-04-16 1979-04-16 Data transmission system Pending JPS55137743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4700879A JPS55137743A (en) 1979-04-16 1979-04-16 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4700879A JPS55137743A (en) 1979-04-16 1979-04-16 Data transmission system

Publications (1)

Publication Number Publication Date
JPS55137743A true JPS55137743A (en) 1980-10-27

Family

ID=12763132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4700879A Pending JPS55137743A (en) 1979-04-16 1979-04-16 Data transmission system

Country Status (1)

Country Link
JP (1) JPS55137743A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213682A2 (en) * 1985-09-04 1987-03-11 Philips Electronics Uk Limited Method of, and apparatus for data communication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213682A2 (en) * 1985-09-04 1987-03-11 Philips Electronics Uk Limited Method of, and apparatus for data communication
JPS6259436A (en) * 1985-09-04 1987-03-16 フィリップス　エレクトロニクス　ネムローゼ　フェンノートシャップ Communicating method for data

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