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1. WO2000041352 - DATA TRANSMISSION IN A TELECOMMUNICATIONS SYSTEM

Publication Number WO/2000/041352
Publication Date 13.07.2000
International Application No. PCT/FI1999/001092
International Filing Date 29.12.1999
Chapter 2 Demand Filed 24.07.2000
IPC
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 1/16 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
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 25/05 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
05Electric or magnetic storage of signals before transmitting or retransmitting for changing the transmission rate
CPC
H04L 1/0018
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
0015characterised by the adaptation strategy
0017where the mode-switching is based on Quality of Service requirement
0018based on latency requirement
H04L 1/16
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
H04L 1/1803
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
1803Stop-and-wait protocols
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 1/1838
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
1838for semi-reliable protocols, e.g. for less sensitive applications such as streaming video
H04L 1/1877
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
1874Buffer management
1877for semi-reliable protocols, e.g. for less sensitive applications like streaming video
Applicants
  • NOKIA NETWORKS OY [FI/FI]; Keilalahdentie 4 FIN-02150 Espoo, FI (AllExceptUS)
  • BERGENWALL, Martin [FI/FI]; FI (UsOnly)
  • RÄSÄNEN, Juha [FI/FI]; FI (UsOnly)
  • OHVO, Mikko [FI/FI]; FI (UsOnly)
Inventors
  • BERGENWALL, Martin; FI
  • RÄSÄNEN, Juha; FI
  • OHVO, Mikko; FI
Agents
  • KOLSTER OY AB; Iso Roobertinkatu 23 P.O. Box 148 FIN-00121 Helsinki, FI
Priority Data
98285431.12.1998FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DATA TRANSMISSION IN A TELECOMMUNICATIONS SYSTEM
(FR) TRANSMISSION DE DONNEES DANS UN SYSTEME DE TELECOMMUNICATIONS
Abstract
(EN)
The invention relates to a communications system comprising a transmitter (30) and a receiver (30) for transmitting transparent data over a connection (32) therebetween. The bandwidth (b2) assigned to the connection (32) is wider than the bandwidth (b1) actually required by a nominal bit rate of the transparent data so as to allow the use of a retransmitting protocol over the connection by enabling data transmission to stop and wait for retransmission of the incorrectly received frames while a transparent connection with a constant delay and a constant bit rate and a low BER is provided to the user. The incoming transparent data stream with a constant bit rate is buffered into a transmission buffer (300) and the frames received over the retransmitting connection (32) are buffered into a receiving buffer (310) which outputs the transparent data at the constant nominal bit rate.
(FR)
Cette invention se rapporte à un système de communications comprenant un émetteur (30) et un récepteur (30) servant à transmettre des données transparentes sur une connexion (32) établie entre l'émetteur et le récepteur. La largeur de bande (b2) attribuée à la connexion (32) est plus grande que la largeur de bande (b1) effectivement requise par un débit binaire nominal des données transparentes, ce qui permet d'utiliser un protocole de retransmission sur la connexion en permettant à la transmission des données de s'interrompre et d'attendre la retransmission des trames reçues de façon incorrecte, pendant qu'une connexion transparente avec retard constant et débit binaire constant ainsi que valeur BER (taux d'erreurs binaires) faible est fournie à l'utilisateur. Le flux des données transparentes entrant avec débit binaire constant est tamponné dans un tampon de transmission (300) et les trames reçues sur la connexion de retransmission (32) sont tamponnées dans un tampon de réception (310), qui émet les données transparentes au débit binaire nominal constant.
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