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1. WO2007095967 - FLOW CONTROL MECHANISM USING LOCAL AND GLOBAL ACKNOWLEDGEMENTS

Publication Number WO/2007/095967
Publication Date 30.08.2007
International Application No. PCT/EP2006/001762
International Filing Date 27.02.2006
Chapter 2 Demand Filed 27.12.2007
IPC
H04L 29/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
H04L 1/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
H04L 1/18 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system
H04L 1/16 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
CPC
H04L 1/1635
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
1607Details of the supervisory signal
1635Cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages
H04L 1/1809
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system ; ; ARQ protocols
1809Selective-repeat protocols
H04L 1/1841
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system ; ; ARQ protocols
1829Arrangements specific to the receiver end
1835Buffer management
1841Resequencing
H04L 1/187
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system ; ; ARQ protocols
1867Arrangements specific to the transmitter end
187Details of sliding window management
H04L 2001/0092
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
0092Error control systems characterised by the topology of the transmission link
H04L 47/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (publ) [SE]/[SE] (AllExceptUS)
  • WIEMANN, Henning [DE]/[DE] (UsOnly)
  • SACHS, Joachim [DE]/[DE] (UsOnly)
  • LUDWIG, Reiner [US]/[DE] (UsOnly)
Inventors
  • WIEMANN, Henning
  • SACHS, Joachim
  • LUDWIG, Reiner
Agents
  • HOFFMANN EITLE
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FLOW CONTROL MECHANISM USING LOCAL AND GLOBAL ACKNOWLEDGEMENTS
(FR) MECANISME DE CONTRÔLE DE FLUX AU MOYEN D'ACCUSES DE RECEPTION LOCAUX ET GLOBAUX
Abstract
(EN)
A method of sending data units from a sending node to a receiving node via at least one intermediate node, where: the data units are arranged in a sequence and each data unit is associated with a sequence position identifier; the intermediate node forwards received data units towards the receiving node and sends feedback messages towards the sending node, where in case of a correct receipt of a given data unit at said intermediate node, a corresponding feedback message comprises a first type receive information that indicates said correct receipt at said intermediate node; the receiving node sends feedback messages towards the sending node, where in case of a correct receipt of a given data unit at said receiving node, a corresponding feedback message comprises a second type receive information that indicates said correct receipt at said receiving node; the intermediate node forwards said second type of receipt information towards said sending node and conducts a data unit retransmission procedure in dependence on received receive information; and the sending node conducts a data unit retransmission procedure in dependence on received receipt information of the first and second type, and conducts a data unit flow control procedure for controlling an amount of data that can be sent at a given time in dependence on said first and second type receipt information.
(FR)
L'invention porte sur un procédé d'envoi d'unités de données depuis un noeud d'envoi jusqu'à un noeud de réception via au moins un noeud intermédiaire. Les unités de données sont disposées dans une séquence et chaque unité de données est associée à un identifiant de position de séquence; le noeud intermédiaire transmet les unités de données reçues au noeud de réception et envoie des messages de rétroaction au noeud d'envoi, et dans l'éventualité d'un reçu correct d'une unité de données donnée au niveau du noeud intermédiaire, un message de rétroaction correspondant comprend des informations de réception d'un premier type qui indiquent ledit reçu correct audit noeud intermédiaire; le noeud de réception envoie des messages de rétroaction vers le noeud d'envoi, et dans l'éventualité d'un reçu correct d'une unité de données donnée au niveau dudit noeud de réception, un message de rétroaction correspondant comprend des informations de réception d'un deuxième type qui indiquent ledit reçu correct audit noeud de réception; le noeud intermédiaire envoie ledit deuxième type d'informations de réception audit noeud d'envoi et exécute une procédure de retransmission d'unité de données en fonction des informations de réception reçues; et le noeud d'envoi exécute une procédure de retransmission d'unité de données en fonction des informations de réception reçues du premier type et du deuxième type, et exécute une procédure de contrôle du flux d'unités de données pour contrôler une quantité de données qui peut être envoyée à un moment donné en fonction des informations de réception du premier type et du deuxième type.
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