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SE516506C2 - Telecommunication system comprising one or more mobile terminals - Google Patents

Telecommunication system comprising one or more mobile terminals

Info

Publication number
SE516506C2
SE516506C2 SE9603133A SE9603133A SE516506C2 SE 516506 C2 SE516506 C2 SE 516506C2 SE 9603133 A SE9603133 A SE 9603133A SE 9603133 A SE9603133 A SE 9603133A SE 516506 C2 SE516506 C2 SE 516506C2
Authority
SE
Sweden
Prior art keywords
mobile terminal
dvf
dthf
function
network according
Prior art date
Application number
SE9603133A
Other languages
Swedish (sv)
Other versions
SE9603133D0 (en
SE9603133L (en
Inventor
Ulf Bodin
Anders Eriksson
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
Priority to SE9603133A priority Critical patent/SE516506C2/en
Publication of SE9603133D0 publication Critical patent/SE9603133D0/en
Priority to EP97933958A priority patent/EP0976264A1/en
Priority to PCT/SE1997/001276 priority patent/WO1998009452A1/en
Publication of SE9603133L publication Critical patent/SE9603133L/en
Priority to NO19990779A priority patent/NO318279B1/en
Publication of SE516506C2 publication Critical patent/SE516506C2/en

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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

Telecommunication system including one or more mobile terminals (MT), one or more base stations, and connection to an open data network (for instance Internet). The connection to the open data network (for instance Internet) is made via a distributed presentation bridge (DVB) which includes a function (DTHF) to handle communication with a mobile terminal and a function (DVF) to handle communication with client computers which execute programs on behalf of the mobile terminal (MT). The system implies that multimedia applications which are resource demanding can be offered via a mobile terminal.

Description

IQ 516 506 .. .. z.. 2 I 0:00 0000 c w 0000 coon 0 0 Det finns ocksa produkter som erbjuder enklare HTLM-visare inbyggda i en mobil terminal. IQ 516 506 .. .. z.. 2 I 0:00 0000 c w 0000 coon 0 0 There are also products that offer simpler HTML viewers built into a mobile terminal.

Problem uppstår dock vid utnyttjande av mer avancerade Internetbaserade applikationer som kräver stort primärminne,härddisk och kraftfulla processorer. Sàdana applikationer kommer i framtiden sannolikt att efterfrågas ännu mera.However, problems arise when using more advanced Internet-based applications that require large primary memory, hard drives and powerful processors. Such applications will probably be in even greater demand in the future.

Samtidigt gàr trenden mot allt mindre, lättare och enklare mobila terminaler.At the same time, the trend is towards ever smaller, lighter and simpler mobile terminals.

Ett syfte med uppfinningen är sáledes att via en mobiltelefon tillhandahålla stora applikationer utan att behöva göra mobiltelefonerna större och mera komplexa. Ett annat syfte är att erbjuda ett koncept som möjliggör smá, lätta och strömsnàla mobila mobila terminaler som ända kan erbjuda avancerade tjänster som Java-applikationer, realtidsapplikationer, minneskrävande applikationer etc samt att förbättra det allmänna telekommunikationsnätet med en bättre infrastruktur för abonnenter.One purpose of the invention is thus to provide large applications via a mobile phone without having to make the mobile phones larger and more complex. Another purpose is to offer a concept that enables small, light and power-efficient mobile terminals that can even offer advanced services such as Java applications, real-time applications, memory-intensive applications, etc. and to improve the public telecommunications network with a better infrastructure for subscribers.

Lösningen Den tekniska lösning pà de ovan angivna problemen visas genom vad som anges i patentkrav l.The solution The technical solution to the above-mentioned problems is shown by what is stated in claim 1.

Fördelar Ett telekommunikationssystem enligt uppfinning möjliggör att multimediala applikationer som är resurskrävande kan erbjudas via en mobil terminal. Den mobila terminalen kan konstrueras pà ett sätt som är oberoende av vilka applikationer som skall erbjudas.Advantages A telecommunications system according to the invention enables multimedia applications that are resource-intensive to be offered via a mobile terminal. The mobile terminal can be constructed in a manner that is independent of which applications are to be offered.

En ytterligare fördel med detta koncept är att visningssättet pà den mobila terminalen är helt transparent för klientdatorernas applikationer. Detta medför vidare att den 515 5U6 .. .. 3 0000 00 1000 0 0 0000 0000 v 0 programvara som exekveras i klientdatorn kan förändras och uppgraderas helt utan inblandning av mobilterminalens ägare eller användare. Man kan pà detta sätt erbjuda mobila applikationsanvändare en integrerad applikationsflora som 5 alltid motsvarar det senaste pà marknaden.A further advantage of this concept is that the display mode on the mobile terminal is completely transparent to the client computer applications. This also means that the software running on the client computer can be changed and upgraded without any involvement from the owner or user of the mobile terminal. In this way, mobile application users can be offered an integrated application flora that always corresponds to the latest on the market.

Figurbeskrivning I fig. 1 visas en övergripande skiss över den 10 uppfinningsenliga systemlösningen.Description of the figure In Fig. 1 an overall sketch of the system solution according to the invention is shown.

Detaljerad beskrivning.Detailed description.

För att underlätta förståelsen av föreliggande uppfinning ges 15 först en förklaring till de använda förkortningarna.To facilitate understanding of the present invention, an explanation of the abbreviations used is first given.

DTHF: Distribuerad Terminal Hanterings Funktion DVF: Distribuerad Visnings Funktion 20 DVB: Distribuerad Visnings Brygga VX: Publik Televäxel 25 MT: Mobil Terminal _' KD: Klientdator E: BS: Basstation :jo >|1a| _:' AP: Acess Punkt 10 15 20 25 mnru mi! lll I 516 506 - :: .. É..É'.=:. ::= 4 I figur 1 visas det uppfinningsenliga konceptet med ett antal klientdatorer (KD) som är anslutna till ett öppet datanät t.ex. Internet. Vidare visas en mobilterminal (MT) och en distribuerad visningsbrygga (DVB) samt övriga nätfunktioner.DTHF: Distributed Terminal Handling Function DVF: Distributed Display Function 20 DVB: Distributed Display Bridge VX: Public Switchboard 25 MT: Mobile Terminal _' KD: Client Computer E: BS: Base Station :jo >|1a| _:' AP: Access Point 10 15 20 25 mnru mi! lll I 516 506 - :: .. É..É'.=:. ::= 4 Figure 1 shows the inventive concept with a number of client computers (KD) that are connected to an open data network, e.g. the Internet. Furthermore, a mobile terminal (MT) and a distributed display bridge (DVB) are shown as well as other network functions.

I den distribuerade visningsbryggan ingar tvá funktioner vilka benämns Distribuerad visningsfunktion (DVF) och distribuerade terminalhanteringsfunktionen (DTHF) vilkas funktioner förklaras nedan.The distributed display bridge includes two functions called the Distributed Display Function (DVF) and the Distributed Terminal Handling Function (DTHF), whose functions are explained below.

I den distribuerade visningsbryggan (DVB) ingàr en distribuerad terminalhanteringsfunktion (DTHF) vilken har som uppgift att hantera kommunikationen med den mobila terminalen (MT). När mobilterminalen aktiveras för användning enligt det uppfinningsenliga konceptet sker uppkopplingen genom att mobilterminalen (MT) sätter upp en dubbelriktad dataförbindelse till den distribuerade terminalhanteringsfunktionen (DTHF) via ett öppet datanät som till exempel Internet. Detta uppkopplingsförfarande innefattar erforderlig säkerhetskontroll för att säkerställa Mobilterminalens (MT) identitet. i Därefter kan mobilterminalen (MT) signalera till den distribuerade terminalhanteringsfunktionen (DTHF) via t.ex. tangentbord eller mus som är ansluten till den mobila terminalen. Vid översändning av t.ex. bilder via Internet sänds de först till den distribuerade visningsfunktionen (DVF) ingàende i den distribuerade visningsbryggan och sedan vidare till den distribuerade terminalhanteringsfunktionen (DTHF). I (DTHF) komprimeras bilderna med nàgon lämplig bildkomprimeringsalgoritm t.ex. Mpeg eller Mjpeg. De komprimerade bilderna sänds sedan över till mobilterminalen (MT). 10 15 20 :sons \-»>» 516 506 .. .. 5 00 0000 0100 0 0 C000 När systemet skall kopplas ned kan mobilterminalen (MT begära nedkoppling frán den distribuerade terminalhanterings- funktionen (DTHF),som innehar funktionalitet för detta, som dä stänger förbindelsen mellan mobilterminalen (MT) och den distribuerade terminalhanteringsfunktionen (DTHF).The distributed display bridge (DVB) includes a distributed terminal handling function (DTHF) which is responsible for handling communication with the mobile terminal (MT). When the mobile terminal is activated for use according to the inventive concept, the connection is made by the mobile terminal (MT) setting up a bidirectional data connection to the distributed terminal handling function (DTHF) via an open data network such as the Internet. This connection procedure includes the necessary security checks to ensure the identity of the mobile terminal (MT). The mobile terminal (MT) can then signal to the distributed terminal handling function (DTHF) via, for example, a keyboard or mouse connected to the mobile terminal. When transmitting, for example, images via the Internet, they are first sent to the distributed display function (DVF) included in the distributed display bridge and then on to the distributed terminal handling function (DTHF). In the (DTHF), the images are compressed using a suitable image compression algorithm, for example, Mpeg or Mjpeg. The compressed images are then sent to the mobile terminal (MT). 10 15 20 :sons \-»>» 516 506 .. .. 5 00 0000 0100 0 0 C000 When the system is to be disconnected, the mobile terminal (MT) can request disconnection from the distributed terminal handling function (DTHF), which has functionality for this, which then closes the connection between the mobile terminal (MT) and the distributed terminal handling function (DTHF).

De funktionella delar som den distribuerade terminalhanteringsfunktionen (DTHF) innefattar är följande: 1) Uppkoppling mellan MT och DTHF 2) Identifiering av MT 3) Autenticiering av MT 4) Komprimering av bilder 5) Vidarebefodring av signaler fràn MT till DVF 6) Nedkoppling mellan MT och DTHF Den distribuerade Visningsfunktionen (DVF) har som uppgift att hantera kommunikationen med de klientdatorer som exekverar program för mobilterminalens (MT) räkning.The functional parts that the distributed terminal handling function (DTHF) includes are the following: 1) Connection between MT and DTHF 2) Identification of MT 3) Authentication of MT 4) Compression of images 5) Forwarding of signals from MT to DVF 6) Disconnection between MT and DTHF The task of the distributed Display Function (DVF) is to handle communication with the client computers that execute programs on behalf of the mobile terminal (MT).

Den distribuerade visningsfunktionen (DVF) fungerar i stort sett som en X-server som klientdatorerna kan koppla upp sig emot. Applikationsprogrammen exekverar alltsa i klientdatorerna men indata ( signaler frän tangentbord och mus) och utdata (bildskärmspresentation) hanteras av den distribuerade visningsfunktionen (DVF). Den huvudsakliga skillnaden mot en X-server är att den distribuerade visningsfunktionen (DVF)endast utnyttjar den mobila terminalen (MT) som bildskärm, tangentbord och mus. Detta 10 15 20 |»|-- mun: 516 506 6 sker via den distribuerade terminalhanteringsfunktionen (DTHF) som hanterar kommunikationen med den mobila terminalen (MT).The distributed display function (DVF) functions largely as an X server that the client computers can connect to. The application programs execute in the client computers, but the input data (signals from the keyboard and mouse) and output data (screen presentation) are handled by the distributed display function (DVF). The main difference from an X server is that the distributed display function (DVF) only uses the mobile terminal (MT) as a display, keyboard and mouse. This is done via the distributed terminal handling function (DTHF) which handles communication with the mobile terminal (MT).

Den distribuerade visningsfunktionen (DVF) tar emot indata fràn den mobila terminalen (MT) via den distribuerade terminalhanteringsfunktionen (DTHF) och vidarebefordrar dessa till aktuell klientdator. Den distribuerade visningsfunktionen (DVF) vidarebefordra ocksa utdata fràn klientdatorerna till den mobila terminalen (MT) via den distribuerade terminalhanteringsfunktionen (DTHF).The Distributed Display Function (DVF) receives input data from the mobile terminal (MT) via the Distributed Terminal Handling Function (DTHF) and forwards it to the current client computer. The Distributed Display Function (DVF) also forwards output data from the client computers to the mobile terminal (MT) via the Distributed Terminal Handling Function (DTHF).

Den säkerhetsmässiga delen i kommunikationen med den distribuerade visningsfunktionen (DVF) hanteras av klientdatorerna. Dessa datorer identifierar och autenticierar användaren när denna begär en uppkoppling via den distribuerade visningsbryggan (DVB) pà samma sätt som om den distribuerade visningsbryggan (DVB) vore en vanlig dator ansluten till det öppna datanätet.The security aspect of communication with the Distributed Display Function (DVF) is handled by the client computers. These computers identify and authenticate the user when they request a connection via the Distributed Display Bridge (DVB) in the same way as if the Distributed Display Bridge (DVB) were a regular computer connected to the open data network.

Den distribuerade visningsbryggan (DVB) innefattar följande funktionella delar: 1) X-server 2) autenticiering 3) etc.The Distributed Display Bridge (DVB) includes the following functional parts: 1) X server 2) authentication 3) etc.

Systemlösningen innebär att multimediala applikationer som är resurskrävande kan erbjudas via en mobil terminal. Den mobila terminalen kan konstrueras pà ett sätt som är oberoende av vilka applikationer som erbjuds. Detta är möjligt genom att applikationerna exekverar i klientdatorer anslutna till ett öppet datanät. Den mobila terminalens funktioner är endast dubbelriktad ljudkommunikation, dubbelriktad datakommunikation, dekompremering av bilder samt funktionshantering av bildskärm ,tangentbord och mus. Detta 10 15 20 .»no~ lasa» Uno: i Q 516 506 7 medför att den mobila terminalen kan hàllas enkel men ändà erbjuda avancerade resurskrävande multimediala tjänster.The system solution means that multimedia applications that are resource-intensive can be offered via a mobile terminal. The mobile terminal can be constructed in a way that is independent of which applications are offered. This is possible by having the applications execute in client computers connected to an open data network. The mobile terminal's functions are only two-way audio communication, two-way data communication, decompression of images and function management of the display, keyboard and mouse. This means that the mobile terminal can be kept simple but still offer advanced resource-intensive multimedia services.

De tjänster som kan erbjudas med denna systemlösning eller ordbehandlare, koncept är t.ex. "video on demand", videospel, traditionell och interaktiv TV.The services that can be offered with this system solution or word processor concept are, for example, "video on demand", video games, traditional and interactive TV.

Claims (9)

1. 0 l5 20 25 30 516 50-6 8 Patentkrav Telekommunikationssystem innefattande en eller flera mobila terminaler (MT), en eller flera basstationer samt anslutning till ett öppet datanät (t.ex.Claims Telecommunication systems comprising one or more mobile terminals (MT), one or more base stations and connection to an open data network (e.g. 2. Internet), kännetecknat av, att anslutningen till det öppna datanätet (t.ex.Internet), characterized in that the connection to the open data network (e.g. 3. Internet) sker via en distribuerad visningsbrygga (DVB) vilken innefattar en funktion (DTHF) för att hantera kommunikation med en mobil terminal och en funktion (DVF) för att hantera kommunikation med klientdatorer som exekverar program för den mobila terminalens (MT) räkning varvid de program som exekveras är konstruerade och har samma uppbyggnadssätt som programspråket Java varvid den mobila terminalen utgörs av en terminal av valfri konstruktionstyp och är oberoende av vilka applikationer som exekveras.3. Internet) takes place via a distributed display bridge (DVB) which includes a function (DTHF) for handling communication with a mobile terminal and a function (DVF) for handling communication with client computers executing programs on behalf of the mobile terminal (MT) wherein the programs that are executed are constructed and have the same construction method as the Java programming language, wherein the mobile terminal consists of a terminal of any construction type and is independent of which applications are executed. 4. Telekommunikationssystem enligt patentkrav l, kännetecknat av, att (DTHF) innefattar följande funktionella delar: 1) uppkoppling mellan MT och DTHF 2) identifiering av MT 3) autenticiering av MT 4) komprimering av bilder 5) vidarebefodring av signaler fràn MT till DVF 6) Nedkoppling mellan MT och DTHF Telekommunikationssystem enligt patentkrav l, kånnetecknat av, att (DVF) innefattar i huvudsak följande funktionella delar: lO 15 20 25 30 516 506 l) X-server 2) autenticering Telekommunikationsnät enligt något av föregående patentkrav kännetecknat av, att de multimediala applikationerna som är resurskrävande erbjuds via en mobil terminal.Telecommunication system according to claim 1, characterized in that (DTHF) comprises the following functional parts: 1) connection between MT and DTHF 2) identification of MT 3) authentication of MT 4) compression of images 5) transmission of signals from MT to DVF Disconnection between MT and DTHF Telecommunication system according to claim 1, characterized in that (DVF) comprises essentially the following functional parts: 10 15 25 25 516 506 l) X-server 2) authentication Telecommunication network according to any one of the preceding claims, characterized by, that the multimedia applications that are resource-intensive are offered via a mobile terminal. 5. Telekommunikationsnät enligt något av föregående patentkrav kännetecknat av, att visningsättet på (MT) är helt transparent för klientdatorernas applikationer vilket innebär att den programvara som exekveras i (KD) kan förändras och uppgraderas helt utan inblandning av användaren eller ägaren till (MT).Telecommunication network according to one of the preceding claims, characterized in that the display mode of (MT) is completely transparent to the client computer applications, which means that the software executed in (KD) can be changed and upgraded completely without the intervention of the user or owner of (MT). 6. Telekommunikationsnät enligt något av föregående patentkrav kännetecknat av, att resurskrävande applikationer sàsom t.ex. bilder exekveras i (KD) och att övriga delar exekveras i (MT).Telecommunication network according to one of the preceding claims, characterized in that resource-intensive applications such as e.g. images are executed in (KD) and other parts are executed in (MT). 7. Telekommunikationsnät enligt något av föregående patentkrav kännetecknat av, att den säkerhetsmässiga delen i kommunikationen med den distribuerade visningsfunktionen (DVF) hanteras av klientdatorerna (KD) vilka identifierar och autenticerar en användare när denna begär en uppkoppling via den distribuerade visningsbryggan (DVB) på samma sätt som om den distribuerade visningsbryggan (DVB) är en vanlig dator ansluten till det öppna datanätet.Telecommunication network according to one of the preceding claims, characterized in that the security part of the communication with the distributed display function (DVF) is handled by the client computers (KD) which identify and authenticate a user when he requests a connection via the distributed display bridge (DVB) on the same It is as if the Distributed Display Bridge (DVB) is a standard computer connected to the open data network. 8. Telekommunikationsnät enligt något av föregående patentkrav kânnetecknat av, att índata ( signaler från tangentbord och mus) och utdata (bildskärmsrepresentation) hanteras av den distribuerade visningsfunktionen (DVF). 516 506 10Telecommunication network according to one of the preceding claims, characterized in that input data (signals from keyboard and mouse) and output data (screen representation) are handled by the distributed display function (DVF). 516 506 10 9. Telekommunikationsnät enligt nagot av föregående patentkrav kännetecknat av, att den mobila terminalens funktioner endast är dubbelriktad ljudkommunikation, dubbelriktad datakommunikation, dekomprimering av bilder samt funktionshantering av bildskärm, tangentbord och mus.Telecommunication network according to any one of the preceding claims, characterized in that the functions of the mobile terminal are only bidirectional audio communication, bidirectional data communication, decompression of images and function management of monitor, keyboard and mouse.
SE9603133A 1996-08-29 1996-08-29 Telecommunication system comprising one or more mobile terminals SE516506C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9603133A SE516506C2 (en) 1996-08-29 1996-08-29 Telecommunication system comprising one or more mobile terminals
EP97933958A EP0976264A1 (en) 1996-08-29 1997-07-15 Telecommunication system comprising a connection to an open data network
PCT/SE1997/001276 WO1998009452A1 (en) 1996-08-29 1997-07-15 Telecommunication system comprising a connection to an open data network
NO19990779A NO318279B1 (en) 1996-08-29 1999-02-19 Telecommunication system including one or more mobile terminals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9603133A SE516506C2 (en) 1996-08-29 1996-08-29 Telecommunication system comprising one or more mobile terminals

Publications (3)

Publication Number Publication Date
SE9603133D0 SE9603133D0 (en) 1996-08-29
SE9603133L SE9603133L (en) 1998-03-01
SE516506C2 true SE516506C2 (en) 2002-01-22

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SE9603133A SE516506C2 (en) 1996-08-29 1996-08-29 Telecommunication system comprising one or more mobile terminals

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

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
FI20001796A7 (en) * 2000-08-15 2002-02-16 Oy Dwa Quickclic Ltd Distributed Wireless Architecture (DWA)
GB2373136A (en) * 2001-03-07 2002-09-11 Int Computers Ltd Distributed computing using wireless mobile devices

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI98687C (en) * 1993-09-20 1997-07-25 Nokia Telecommunications Oy Mobile telephony system and method for connecting a remote workstation to a data network via a mobile telephony system
US5533019A (en) * 1994-01-31 1996-07-02 Motorola, Inc. Packet data in an analog cellular radiotelephone system
JP3640689B2 (en) * 1994-10-28 2005-04-20 株式会社東芝 Communication terminal
WO1997014244A1 (en) * 1995-10-11 1997-04-17 Sony Corporation Information providing device and portable communication terminal

Also Published As

Publication number Publication date
SE9603133D0 (en) 1996-08-29
NO990779L (en) 1999-04-22
SE9603133L (en) 1998-03-01
NO318279B1 (en) 2005-02-28
NO990779D0 (en) 1999-02-19
EP0976264A1 (en) 2000-02-02
WO1998009452A1 (en) 1998-03-05

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