CA2143950A1 - Packet Delivery System - Google Patents

Packet Delivery System

Info

Publication number
CA2143950A1
CA2143950A1 CA2143950A CA2143950A CA2143950A1 CA 2143950 A1 CA2143950 A1 CA 2143950A1 CA 2143950 A CA2143950 A CA 2143950A CA 2143950 A CA2143950 A CA 2143950A CA 2143950 A1 CA2143950 A1 CA 2143950A1
Authority
CA
Canada
Prior art keywords
packet
fragments
acknowledgment
order
data
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.)
Granted
Application number
CA2143950A
Other languages
French (fr)
Other versions
CA2143950C (en
Inventor
Dale R. Buchholz
William K. Doss
R. Lee Hamilton, Jr.
Richard E. White
Karen Robbins
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.)
Motorola Mobility LLC
Original Assignee
Dale R. Buchholz
William K. Doss
R. Lee Hamilton, Jr.
Richard E. White
Karen Robbins
Motorola, Inc.
Motorola Mobility, 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 Dale R. Buchholz, William K. Doss, R. Lee Hamilton, Jr., Richard E. White, Karen Robbins, Motorola, Inc., Motorola Mobility, Inc. filed Critical Dale R. Buchholz
Publication of CA2143950A1 publication Critical patent/CA2143950A1/en
Application granted granted Critical
Publication of CA2143950C publication Critical patent/CA2143950C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/34—Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • 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
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC

Abstract

A packet switching system (100) having a packet switch (140) employs an acknowledgment scheme in order assure the delivery of all fragments (310) comprising a fragmented data packet (300) to improve overall system throughput during the handling of packets (310) that require reassembly. When packet fragments (310) are lost, corrupted or otherwise unintelligible to a receiving device (92, 94), the acknowledgment scheme permits retransmission of the missing data. In addition, a second acknowledgment signal is scheduled by system processing resources (110) in order to verify the successful delivery of all retransmitted data.
CA002143950A 1993-08-02 1994-06-27 Packet delivery system Expired - Lifetime CA2143950C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US100,403 1993-08-02
US08/100,403 US5440545A (en) 1993-08-02 1993-08-02 Packet delivery system
PCT/US1994/007449 WO1995004421A1 (en) 1993-08-02 1994-06-27 Packet delivery system

Publications (2)

Publication Number Publication Date
CA2143950A1 true CA2143950A1 (en) 1995-02-09
CA2143950C CA2143950C (en) 2000-04-11

Family

ID=22279585

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002143950A Expired - Lifetime CA2143950C (en) 1993-08-02 1994-06-27 Packet delivery system

Country Status (9)

Country Link
US (1) US5440545A (en)
EP (1) EP0667074B1 (en)
JP (1) JP3080991B2 (en)
KR (1) KR100197922B1 (en)
CN (1) CN1050723C (en)
AU (1) AU675868B2 (en)
BR (1) BR9405540A (en)
CA (1) CA2143950C (en)
WO (1) WO1995004421A1 (en)

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Also Published As

Publication number Publication date
CN1113402A (en) 1995-12-13
EP0667074A4 (en) 2005-02-09
US5440545A (en) 1995-08-08
EP0667074A1 (en) 1995-08-16
KR100197922B1 (en) 1999-06-15
EP0667074B1 (en) 2007-06-20
CN1050723C (en) 2000-03-22
CA2143950C (en) 2000-04-11
WO1995004421A1 (en) 1995-02-09
BR9405540A (en) 1999-09-08
AU675868B2 (en) 1997-02-20
JP3080991B2 (en) 2000-08-28
JPH08502159A (en) 1996-03-05
AU7321094A (en) 1995-02-28

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