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1. WO1999027691 - DATA COMPRESSION NEGOTIATION IN A TELECOMMUNICATION SYSTEM

Publication Number WO/1999/027691
Publication Date 03.06.1999
International Application No. PCT/FI1998/000916
International Filing Date 23.11.1998
Chapter 2 Demand Filed 22.06.1999
IPC
H04L 1/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
H04L 29/06 2006.1
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 29/08 2006.1
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
08Transmission control procedure, e.g. data link level control procedure
H04W 92/02 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
92Interfaces specially adapted for wireless communication networks
02Inter-networking arrangements
CPC
H04L 69/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
08Protocols for interworking or protocol conversion
H04L 69/24
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
24Negotiation of communication capabilities
H04L 69/323
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
30Definitions, standards or architectural aspects of layered protocol stacks
32High level architectural aspects of 7-layer open systems interconnection [OSI] type protocol stacks
322Aspects of intra-layer communication protocols among peer entities or protocol data unit [PDU] definitions
323in the physical layer, i.e. layer one
H04L 9/40
H04W 92/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
92Interfaces specially adapted for wireless communication networks
02Inter-networking arrangements
Applicants
  • NOKIA NETWORKS OY [FI]/[FI] (AllExceptUS)
  • RÄSÄNEN, Juha [FI]/[FI] (UsOnly)
Inventors
  • RÄSÄNEN, Juha
Agents
  • KOLSTER OY AB
Priority Data
97430724.11.1997FI
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DATA COMPRESSION NEGOTIATION IN A TELECOMMUNICATION SYSTEM
(FR) NEGOCIATION DE COMPRESSION DE DONNEES DANS UN SYSTEME DE TELECOMMUNICATIONS
Abstract
(EN) The invention relates to a method for setting up a data link, wherein an end-to-end link comprises at least two separate legs (402, 403) with error correction protocols. The legs may have different physical layer connections or their error correction protocols (V. 120, RLP) may be different. An interworking function IWF according to the invention that is located between these legs (402, 403) is integrated such that the legs can communicate with each other during set-up of traffic channel in order to exchange data compression parameters. The IWF intervenes in an end-to-end data compression negotiation, performs protocol conversions on messages transmitted from one leg to another, synchronizes the legs, if required, by delaying the set-up of the faster leg and the compression negotiation, modifies the compression parameters provided by the legs, if required, and if the end-to-end data compression negotiation fails, it may set up data compression on only one leg.
(FR) Cette invention concerne un procédé permettant d'établir une liaison de données, procédé dans lequel une liaison de bout en bout comprend au moins deux trajets distincts (402, 403) avec des protocoles de correction d'erreurs. Ces trajets peuvent avoir des connexions à couches physiques différentes ou, encore, leurs protocoles de correction d'erreurs (V. 120, RLP) peuvent être différents. Une fonction d'interfonctionnement (IFW) située entre ces trajets (402, 403) est intégrée de manière à ce que lesdits trajets puissent communiquer l'un avec l'autre lors de l'établissement de canal de trafic et à ce qu'ils puissent échanger des paramètres de compression des données. L'IFW va intervenir au cours d'une négociation de compression de données de bout en bout, effectuer des conversions protocolaires sur des messages transmis d'un trajet à l'autre, synchroniser le cas échéant les trajets en retardant l'établissement du trajet le plus rapide et la négociation de compression, et modifier les paramètres de compression fournis par les trajets si nécessaire. Dans le cas où la négociation de compression de données de bout en bout échoue, l'IWF peut effectuer une compression de données sur un trajet uniquement.
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