EP0976264A1 - Telecommunication system comprising a connection to an open data network - Google Patents

Telecommunication system comprising a connection to an open data network

Info

Publication number
EP0976264A1
EP0976264A1 EP97933958A EP97933958A EP0976264A1 EP 0976264 A1 EP0976264 A1 EP 0976264A1 EP 97933958 A EP97933958 A EP 97933958A EP 97933958 A EP97933958 A EP 97933958A EP 0976264 A1 EP0976264 A1 EP 0976264A1
Authority
EP
European Patent Office
Prior art keywords
telecommunication system
mobile terminal
dvf
function
dthf
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP97933958A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ulf Bodin
Anders Eriksson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telia AB
Original Assignee
Telia AB
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 Telia AB filed Critical Telia AB
Publication of EP0976264A1 publication Critical patent/EP0976264A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1023—Media gateways
    • H04L65/1026—Media gateways at the edge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1059—End-user terminal functionalities specially adapted for real-time communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H04L65/765—Media network packet handling intermediate
    • 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
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • 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
    • H04L67/131—Protocols for games, networked simulations or virtual reality
    • 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
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]

Definitions

  • the invention relates to a telecommunication system according to the introduction to patent claim 1.
  • WO,A2 , 9531872 a method is shown to execute computer demanding applications in a distributed way by means of a powerful computer and after that show the result on a local statio .
  • WO,Al , 9204670 a system for distributed access to a database which implies that a key is collected in a distant computer via a modem. The key after that makes the database accessible to the user who is charged automatically.
  • the American patent document 5 335 276 describes a multicommunication device where appplication programs are provided from external computers .
  • One aim with the invention consequently is to via a mobile telephone provide large applications without needing to make the mobile telephones larger and more complex.
  • Another aim is to offer a concept which makes possible small , light and electricity-saving mobile terminals which yet can offer advanced services such as Java-applications , real time applications , memory demanding applications etc , and to improve the public telecommunication network by a better infrastructure for subscribers .
  • a telecommunication system according to the invention makes possible that multimedia applications which are resource demanding can be offered via a mobile terminal .
  • the mobile terminal can be constructed in a way which is independent of which applications that shall be offered.
  • DTHF Distributed Terminal Handling Function.
  • DVF Distributed Presentation Function
  • KD Client Computer .
  • BS Base Station .
  • A Access Point .
  • Figure 1 the concept according to the invention is shown with a number of client computers (KD) which are connected to an open data network, for instance Internet. Further is shown a mobile terminal (MT) and a distributed presentation bridge (DVB) , as well as other network functions .
  • KD client computers
  • MT mobile terminal
  • DVD distributed presentation bridge
  • the distributed presentation bridge two functions are included which are called Distributed Presentation Function (DVF) and the Distributed Terminal Handling Function (DTHF) , which functions are explained below.
  • DTHF distributed terminal handling function
  • MT mobile terminal
  • DTHF distributed terminal handling function
  • the connection is made by the mobile terminal (MT) establishing a two-way data connection to the distributed terminal handling function (DTHF) via an open data network such as for instance Internet.
  • This connection procedure includes necessary security control to guarantee the identity of the mobile terminal (MT) .
  • the mobile terminal (MT) can signal to the distributed terminal handling function (DTHF) via for instance keyboard or mouse which is connected to the mobile terminal.
  • DTHF distributed terminal handling function
  • the pictures are compressed by some suitable picture compressing algorithm, for instance Mpeg or Mjpeg.
  • Mpeg or Mjpeg.
  • the compressed pictures then are transmitted to the mobile terminal (MT) .
  • the mobile terminal (MT) can ask for disconnection from the distributed terminal handling function (DTHF) , which has functionality for this, which then breaks the connection between the mobile terminal (MT) and the distributed terminal handling function (DTHF) .
  • the functional parts which the distributed terminal handling function (DTHF) includes are the following:
  • the distributed presentation function has as its task 0 to handle the communication with the client computers which execute programs on behalf of the mobile terminal (MT) .
  • the distributed presentation function (DVF) functions on the whole as an X-server to which the client computers can connect.
  • the application programs consequently execute in the client computers, but input data (signals from keyboard and mouse) and output data (screen presentation) is handled by the distributed presentation function (DVF) .
  • the main difference in relation to an X-server is that the distributed presentation function (DVF) only utilizes the mobile terminal (MT) as picture screen, keyboard and mouse. This is made via the distributed terminal handling function, (DTHF) which handles the communication with the mobile terminal (MT) .
  • DTHF distributed terminal handling function
  • the distributed presentation function receives input data from the mobile terminal (MT) via the distributed terminal handling function (DTHF) and forwards these to client computer in question.
  • the distributed presentation function (DVF) also forwards output data from the client computers to the mobile terminal (MT) via the distributed terminal handling function (DTHF) .
  • the part related to security in the communication with the distributed presentation function (DVF) is handled by the client computers . These computers identify and authenticate the user when he/she asks for a connection via the distributed presentation bridge (DVB) in the same way as if the distributed presentation bridge (DVB) were an ordinary computer connected to the open data network .
  • the distributed presentation bridge (DVB) includes the following functional parts : 1) X-server
  • the system solution implies that multimedia applications which are resource demanding can be offered via a mobile terminal .
  • the mobile terminal can be constructed in a way which is independent of which applications that are offered. This is possible by that the applications execute in client computers connected to an open data network.
  • the functions of the mobile terminal is only two-way sound communication, two-way data communication, decompression of pictures and function handling of picture screen, keyboard and mouse . This results in that the mobile terminal can be kept simple but yet offer advanced resource demanding multimedia services .
  • the services which can be offered with this system solution or concept are for instance "video on demand", video games, word processor, traditional and interactive TV.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
EP97933958A 1996-08-29 1997-07-15 Telecommunication system comprising a connection to an open data network Withdrawn EP0976264A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9603133 1996-08-29
SE9603133A SE516506C2 (sv) 1996-08-29 1996-08-29 Telekommunikationssystem innefattande en eller flera mobila terminaler
PCT/SE1997/001276 WO1998009452A1 (en) 1996-08-29 1997-07-15 Telecommunication system comprising a connection to an open data network

Publications (1)

Publication Number Publication Date
EP0976264A1 true EP0976264A1 (en) 2000-02-02

Family

ID=20403695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97933958A Withdrawn EP0976264A1 (en) 1996-08-29 1997-07-15 Telecommunication system comprising a connection to an open data network

Country Status (4)

Country Link
EP (1) EP0976264A1 (sv)
NO (1) NO318279B1 (sv)
SE (1) SE516506C2 (sv)
WO (1) WO1998009452A1 (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5659899A (en) * 1998-07-29 2000-02-21 Telefonaktiebolaget Lm Ericsson (Publ) System and method for long distance bypass for terminating mobile calls
EP1874019A3 (en) * 1999-02-24 2008-07-02 Telefonaktiebolaget LM Ericsson (publ) Methods and systems for call routing and codec negotiation in hybrid voice/data/internet/wireless systems
US6760759B1 (en) * 1999-11-24 2004-07-06 Mtel Limited System to support mobile visual communications
US6996387B2 (en) 2000-05-01 2006-02-07 Mtel Limited Global data network using existing wireless infrastructures
FI20001796A (sv) * 2000-08-15 2002-02-16 Dwa Quickclic Ltd Oy Distribuerad trådlös arkitektur (DWA)
GB2373136A (en) * 2001-03-07 2002-09-11 Int Computers Ltd Distributed computing using wireless mobile devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI98687C (sv) * 1993-09-20 1997-07-25 Nokia Telecommunications Oy Mobiltelesystem samt förfarande för koppling av en fjärrarbetsstation till ett datanät via ett mobiltelesystem
US5533019A (en) * 1994-01-31 1996-07-02 Motorola, Inc. Packet data in an analog cellular radiotelephone system
JP3640689B2 (ja) * 1994-10-28 2005-04-20 株式会社東芝 通信端末
US6341133B1 (en) * 1995-10-11 2002-01-22 Sony Corporation Information providing apparatus and portable communication terminal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9809452A1 *

Also Published As

Publication number Publication date
SE9603133D0 (sv) 1996-08-29
NO318279B1 (no) 2005-02-28
SE516506C2 (sv) 2002-01-22
SE9603133L (sv) 1998-03-01
NO990779L (no) 1999-04-22
WO1998009452A1 (en) 1998-03-05
NO990779D0 (no) 1999-02-19

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