WO2006027367A1 - Systeme de communication de donnees, et procede de communication de donnees - Google Patents

Systeme de communication de donnees, et procede de communication de donnees Download PDF

Info

Publication number
WO2006027367A1
WO2006027367A1 PCT/EP2005/054411 EP2005054411W WO2006027367A1 WO 2006027367 A1 WO2006027367 A1 WO 2006027367A1 EP 2005054411 W EP2005054411 W EP 2005054411W WO 2006027367 A1 WO2006027367 A1 WO 2006027367A1
Authority
WO
WIPO (PCT)
Prior art keywords
client
server
data
data communication
communication system
Prior art date
Application number
PCT/EP2005/054411
Other languages
German (de)
English (en)
Inventor
Kai Lauterjung
Original Assignee
Kai Lauterjung
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 Kai Lauterjung filed Critical Kai Lauterjung
Publication of WO2006027367A1 publication Critical patent/WO2006027367A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/08—Protocols specially adapted for terminal emulation, e.g. Telnet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/565—Conversion or adaptation of application format or content
    • H04L67/5651—Reducing the amount or size of exchanged application data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
    • 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
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/164—Adaptation or special uses of UDP protocol
    • 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
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/165—Combined use of TCP and UDP protocols; selection criteria therefor
    • 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
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/166—IP fragmentation; TCP segmentation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/289—Intermediate processing functionally located close to the data consumer application, e.g. in same machine, in same home or in same sub-network

Definitions

  • the invention relates to a data communication system, in particular a data communication system having at least one, in particular a plurality of clients, in particular client computers, and having at least one server, in particular server computer.
  • the invention relates to a system and a method for reducing the volume of traffic and for reducing delay times for applications that are used on a client computer that serves as the input and output device for the applications and directly or indirectly via a mobile network and / or a line-based network, which is characterized in that it has a total high signal delay (of> 50 ms, for example), is connected to an application server, which executes the actual application and connected via the network client computer (terminal) for input and output , as well as display of program controls (eg selection menus), data and graphics uses.
  • program controls eg selection menus
  • the high coverage and mobile availability of the connection to networks also opens up new possibilities for solutions in the client / server application area.
  • An example of this are application servers in which a server executes the applications for several clients connected via a network in a central data center.
  • the Clients serve only as input (mouse, keyboard, etc.) or output device (screen / printer, etc.).
  • An example would be the architecture Microsoft Application Server.
  • the advantage of a client server solution is that you can centralize the administration and investment costs of a software solution and thus save costs.
  • expensive HW investments can be shared by many, and the security level increases with centralized administration.
  • the communication between an application client and an application server computer is characterized by a constant exchange of data between the two devices.
  • the input of the user of the client will be used
  • Display the application transmits the server over the network to the application client.
  • Inputs are displayed. Thus, e.g. when clicking on a pull
  • a client computer with a server computer via a mobile network and / or a terr.
  • the client computer (terminal) only for input and output of data and information (eg via a keyboard, a mouse, a screen or printer) is used.
  • the program code, the application used by a user on the client computer is executed on the server accessible via the network server.
  • the client server architecture according to the invention described here can, however, not have to be characterized in that methods already known and generally used in data communication in the satellite sector for optimizing the data flow between a client and a server via a time-delayed satellite network now also via a mobile radio network and / or a terrestrial network can be used.
  • FIG. 1 shows by way of example a network architecture according to an exemplary embodiment of the present invention, wherein corresponding client computers 1 are connected to one or more application servers 2 via corresponding mobile radio and / or territorial networks 3.
  • SI additional suitable software or hardware
  • an object database that is capable of parts of Display screen representations (objects), such as pixels, lines, graphics, menus, etc., as well as correlations of input sequences to the objects.
  • objects such as pixels, lines, graphics, menus, etc.
  • correlations of input sequences to the objects Sl has access to the object database.
  • S2 At the location of the server computer 2, there may be additional suitable software or hardware (referred to below as S2) which examines the data sent by the server computer 2 to the client computer 1 as to whether it contains signaling data which causes a change in the screen display which has already been controlled by Sl.
  • S2 has been informed of the changes already processed by Sl by a message from Sl transmitted to S2 via the network 3.
  • the data communication between the client computer 1 and the server computer 2 can additionally be optimized as follows:
  • the inputs for the application program eg keystrokes, mouse movements or clicks
  • SI inputs for the application program
  • Sl examines which data and objects are needed to change the screen display, such as:
  • the local object database to be able to locally calculate the change or parts of the change in the screen display without information from the central server computer 2, taking into account the current inputs by Sl.
  • the size or the position of individual screen elements can be recalculated by Sl.
  • the locally possible changes, ie changes in the screen representations, which thus require no data transmission or control by the central server 2 are signaled locally by the client computer 1 by Sl, who then displays these changes to the screen display virtually without a time delay. This signaling takes place in the same way as normally the central server computer 2 performs against the client computer 1 via the network 3.
  • the changed position of the mouse pointer by a movement input of the mouse, or the display of a menu after clicking or moving a window, etc. can be displayed immediately.
  • the client server architecture according to the invention (supplemented by S 1 and S 2) is extended to the effect that additional suitable software or hardware (referred to below as S 3) is used for the automatic creation of the object database.
  • S3 examines the data stream sent by the client computer 1 for frequently repeated input combinations as well as the reactions of the server computer 2 received shortly afterwards via the network to screen signalisations. Correlations are derived from these investigations and stored in the object database.
  • the object database is automatically filled with information (trained) that allow Sl to automatically calculate changes in the screen representations and to locally control the screen display or parts of the representation of the client computer 1 accordingly.
  • the (correct) reception of each individual data packet by the respective recipient is (re) confirmed to the respective sender - the UDP protocol, by contrast, does not provide any corresponding (re) acknowledgment mechanisms.
  • the number of transmitted or subsequently transmitted packets (ie the number of packets of a "packet series") is transmitted with each package.
  • data can be transmitted which identify the number of packages within the respective package series, which can be used by the respective recipient (ie client 1, or server 2) to determine whether an application is being used Package - and if so, which - did not arrive or did not arrive correctly.
  • This package can then be requested - one at a time - thus ensuring that no data is lost within the network architecture without a complex (back) confirmation mechanism.
  • Screen contents are usually represented as objects, eg comboboxes, or fields to fill in, which then unique, be assigned to the client computer 1 to be transmitted codes.
  • the objects are present in the operating system of the client computer 1, as long as they are not application-specific objects that have to be made available to the respective client computer 1 (more precisely: S1) by customizing by S3.
  • the computer 1 is advantageously no longer provided by the server computer 2 with the "screen" or the entire data of the central application initiating a corresponding display on the screen, instead the client computer 1 is only informed as to which objects The objects are then filled locally on the client computer 1, and the server computer 2 is only informed of the new data entered, which has two advantages: a) The the amount of data transferred is essentially reduced to the actual payload data, and b) the delay between an input and the response of the server computer 2 is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un procédé de communication de données, ainsi qu'un système de communication de données comprenant au moins un client (1) et au moins un serveur (2). Cette invention est caractérisée en ce qu'un dispositif (SI) est prévu pour commander des objets représentés sur un écran du client (1), en fonction de données de commande d'objet reçues par le serveur (2).
PCT/EP2005/054411 2004-09-10 2005-09-07 Systeme de communication de donnees, et procede de communication de donnees WO2006027367A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004043868A DE102004043868B4 (de) 2004-09-10 2004-09-10 Datenkommunikationssystem, sowie Datenkommunikationsverfahren
DE102004043868.4 2004-09-10

Publications (1)

Publication Number Publication Date
WO2006027367A1 true WO2006027367A1 (fr) 2006-03-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/054411 WO2006027367A1 (fr) 2004-09-10 2005-09-07 Systeme de communication de donnees, et procede de communication de donnees

Country Status (2)

Country Link
DE (1) DE102004043868B4 (fr)
WO (1) WO2006027367A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7449410B2 (en) 2005-08-02 2008-11-11 Micron Technology, Inc. Methods of forming CoSi2, methods of forming field effect transistors, and methods of forming conductive contacts

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010034788A1 (en) * 2000-01-21 2001-10-25 Mcternan Brennan J. System and method for receiving packet data multicast in sequential looping fashion
US6538667B1 (en) * 1999-07-23 2003-03-25 Citrix Systems, Inc. System and method for providing immediate visual response to user input at a client system connected to a computer system by a high-latency connection
DE10200165A1 (de) * 2002-01-04 2003-07-10 Klaus Rock Verfahren zur Reduzierung der Latenzzeit bei der interaktiven Datenkommunikation über ein Satellitennetzwerk

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7155681B2 (en) * 2001-02-14 2006-12-26 Sproqit Technologies, Inc. Platform-independent distributed user interface server architecture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6538667B1 (en) * 1999-07-23 2003-03-25 Citrix Systems, Inc. System and method for providing immediate visual response to user input at a client system connected to a computer system by a high-latency connection
US20010034788A1 (en) * 2000-01-21 2001-10-25 Mcternan Brennan J. System and method for receiving packet data multicast in sequential looping fashion
DE10200165A1 (de) * 2002-01-04 2003-07-10 Klaus Rock Verfahren zur Reduzierung der Latenzzeit bei der interaktiven Datenkommunikation über ein Satellitennetzwerk

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Intermud Protocols/Zebedee Intermud", 19 February 1999 (1999-02-19), XP002355877, Retrieved from the Internet <URL:http://web.archive.org/web/19990219202819/http://mud.stack.nl/intermud/zebedee.protocol.html> [retrieved on 20051124] *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7449410B2 (en) 2005-08-02 2008-11-11 Micron Technology, Inc. Methods of forming CoSi2, methods of forming field effect transistors, and methods of forming conductive contacts

Also Published As

Publication number Publication date
DE102004043868B4 (de) 2007-01-11
DE102004043868A1 (de) 2006-03-30

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