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1. WO1999008423 - METHODS AND ARRANGEMENT IN A DIGITAL TELECOMMUNICATIONS SYSTEM

Publication Number WO/1999/008423
Publication Date 18.02.1999
International Application No. PCT/SE1998/001196
International Filing Date 18.06.1998
Chapter 2 Demand Filed 29.01.1999
IPC
H03M 13/29 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
13Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
29combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
H04L 1/18 2006.1
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 12/56 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
54Store-and-forward switching systems
56Packet switching systems
CPC
H04L 1/0009
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
0009by adapting the channel coding
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 1/1816
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
1812Hybrid protocols
1816with retransmission of the same, encoded, message
H04L 1/1874
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
H04W 72/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
02Selection of wireless resources by user or terminal
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (publ) [SE]/[SE]
Inventors
  • HÖÖK, Mikael
  • NYSTRÖM, Johan
Agents
  • ERICSSON RADIO SYSTEMS AB
Priority Data
9702903-708.08.1997SE
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND ARRANGEMENT IN A DIGITAL TELECOMMUNICATIONS SYSTEM
(FR) PROCEDE ET DISPOSITIF RELATIFS A UN SYSTEME NUMERIQUE DE TELECOMMUNICATIONS
Abstract
(EN) The present invention relates to a method and an arrangement for communicating packet information in a digital telecommunications system. Through the invention is selected a set of designated communication resources (ch1-chn) from an available amount of resources. Every packet (P) is forward error correction encoded into an encoded packet (Pci), via one of at least two different coding schemes (ci), prior to being transmitted to a receiving party, over the designated communication resources (ch1-chn). An estimated transmission time is calculated for all combinations of coding scheme (ci) an relevant distribution (dj) of the encoded data blocks (B1-B$g(G)), in the encoded packet (PCi) over the set of designated communication resources (ch1-chn), and the combination (ci, dj) is selected, which minimises the estimated transmission time.
(FR) L'invention porte sur un procédé et un dispositif servant à transmettre des informations en paquets à l'intérieur d'un système numérique de télécommunications et consistant à sélectionner un ensemble de ressources de communication désignées (ch1-chn) parmi un ensemble de ressources disponibles. Chacun des paquets (P), codé avec une correction anticipée d'erreurs, est placé dans un paquet codé (Pci) avec l'un au moins de deux schémas de codage (ci) avant d'être transmis à la partie réceptrice via la ressource de communication désignée. On calcule le temps estimé de transmission pour toutes les combinaisons de schéma (ci) de codage ainsi que la distribution correspondante (dj) des blocs de données codées (B1-B$g(G)) dans le paquet codé (PCi) pour l'ensemble des ressources de communication désignées (ch1-chn), puis on sélectionne la combinaison (ci, dj) qui donne le moindre temps estimé de transmission.
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