JPS57131141A - Data transmission controlling system - Google Patents

Data transmission controlling system

Info

Publication number
JPS57131141A
JPS57131141A JP56017267A JP1726781A JPS57131141A JP S57131141 A JPS57131141 A JP S57131141A JP 56017267 A JP56017267 A JP 56017267A JP 1726781 A JP1726781 A JP 1726781A JP S57131141 A JPS57131141 A JP S57131141A
Authority
JP
Japan
Prior art keywords
frame
information frame
retransmission
received
case
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
JP56017267A
Other languages
Japanese (ja)
Inventor
Osamu Mori
Masayoshi Inoue
Mikio Suzuki
Shigekazu Kawano
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 JP56017267A priority Critical patent/JPS57131141A/en
Publication of JPS57131141A publication Critical patent/JPS57131141A/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
    • H04L1/1809—Selective-repeat protocols
    • 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)
  • Communication Control (AREA)

Abstract

PURPOSE:To urge to retransmit an error information frame, by executing a retransmission request by use of a selective retransmission (LREJ) frame which is capable of designating a range for requesting the retransmission of the error information frame, and also monitoring the retransmission state by a retransmission monitoring timer. CONSTITUTION:An information frame transferred from a transmitting station is received by a communication adaptor 410, the adaptor 410 stores the received information frame in the buffer in a communication buffer 430 designated by a data link control processing device 420, and informs a circuit address and a storage address to the processing device 420 when receiving has been completed. The processor 420 discriminates the received frame, and informs a circuit address and a storage address to a monitoring device 440 in case when the received frame is an information frame. The monitoring device 440 checks the sequence of a transmitting sequence number of the information frame, generates an RR frame for confirming the transmission and allowing to receive the information frame in case when said sequence is correct, and an LREJ frame for requesting to retransmit the information frame in case when the information frame is an unconfirmed one, and requests the retransmission.
JP56017267A 1981-02-06 1981-02-06 Data transmission controlling system Pending JPS57131141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56017267A JPS57131141A (en) 1981-02-06 1981-02-06 Data transmission controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56017267A JPS57131141A (en) 1981-02-06 1981-02-06 Data transmission controlling system

Publications (1)

Publication Number Publication Date
JPS57131141A true JPS57131141A (en) 1982-08-13

Family

ID=11939188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56017267A Pending JPS57131141A (en) 1981-02-06 1981-02-06 Data transmission controlling system

Country Status (1)

Country Link
JP (1) JPS57131141A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63152272A (en) * 1986-12-17 1988-06-24 Hitachi Ltd Facsimile error retransmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63152272A (en) * 1986-12-17 1988-06-24 Hitachi Ltd Facsimile error retransmission system

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