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WO1999017527A1 - Modems - Google Patents

Modems Download PDF

Info

Publication number
WO1999017527A1
WO1999017527A1 PCT/EP1998/005028 EP9805028W WO9917527A1 WO 1999017527 A1 WO1999017527 A1 WO 1999017527A1 EP 9805028 W EP9805028 W EP 9805028W WO 9917527 A1 WO9917527 A1 WO 9917527A1
Authority
WO
WIPO (PCT)
Prior art keywords
modem
mobile telephone
telephone network
network
operating parameters
Prior art date
Application number
PCT/EP1998/005028
Other languages
English (en)
Inventor
Mats Göran PETTERSSON
Hans Jorgen Nordin
Original Assignee
Telefonaktiebolaget Lm Ericsson
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 Telefonaktiebolaget Lm Ericsson filed Critical Telefonaktiebolaget Lm Ericsson
Priority to AU92589/98A priority Critical patent/AU9258998A/en
Publication of WO1999017527A1 publication Critical patent/WO1999017527A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Definitions

  • the present invention relates to modems, and in particular to modems for connection to telecommunications networks.
  • Modems are devices for connecting computers to telecommunications networks.
  • different countries have different standards for land telephony systems, and hence for modems which are to be connected thereto.
  • line impedances, voltages, and pulse dialling methods used in the systems differ from country to country.
  • Each modem therefore has to be verified by the telecommunications provider in each country for type approv l.
  • Modems are often made "global" to lower the cost of manufacture by standardising parts and to enable the user to use the modem in most countries of the world.
  • US Patent No. 4,841,561 discloses a modem which includes a ROM, in which parameter values are stored for a plurality of countries. The user enters the relevant country code on start up of the modem and the appropriate parameters are then stored in non-volatile RAM for access. The country codes can be reset and re- entered as required.
  • US Patent No. 4,868,863 describes a system in which standard modem hardware is connected to the telephone lines in a particular country by way of country dependent couplers .
  • the appropriate coupler for a country automatically converts the signals into a form suitable for transmission over that country' s telephone network, by matching to the required voltages and impedances .
  • a user will often need to purchase a new coupler whenever travelling to a new country, thus making this an expensive solution.
  • the present invention seeks to overcome the disadvantages associated with the prior art, by providing a modem which can automatically set the correct operating parameters, having determined its location by interrogating a mobile phone.
  • a mobile phone needs to know where it is located in order to operate. Moreover, it is able to obtain this information by transmitting signals to, and receiving signals from, base stations within a mobile communications network. This information can be used by a modem to ensure that it sets its own operating parameters based on the information received from the mobile phone.
  • a modem for connection to a telecommunications network comprising means for connecting the modem to a mobile telephone network, means for receiving location information from the mobile telephone network, and means for setting modem parameters based on the received location information.
  • a method of operating a modem comprising steps of establishing a connection to a mobile telephone network, obtaining location information from the mobile telephone network, and setting modem parameters on the basis of the received location information.
  • the location information can identify the country in which the mobile telephone network is located, or can identify the mobile telephone network itself.
  • the modem is able to determine the appropriate parameters based on the location information.
  • the modem parameters can be set by and in the modem itself, or may be set by a personal computer (PC) application program. Such an application program can receive the location information and set its parameters appropriately.
  • PC personal computer
  • Figure 1 shows a schematic view of a modem connecting a computer to a telecommunications network
  • Figure 2 shows a block schematic diagram of a modem embodying the present invention
  • FIG. 3 shows a block diagram of a system embodying the present invention.
  • Figure 4 is a flow chart showing steps in a method embodying the invention.
  • a modem 2 is used to connect a computer 3 to a telecommunications network 1.
  • a modem is required which can be easily and simply configured to interact correctly with the telecommunications network of the country concerned.
  • Figure 2 shows a modem 2 which includes a network interface 21 for connection to the desired telecommunications network, and a computer interface 22 for connection to the computer such as a PC 3 ( Figure 1) .
  • a network interface 21 for connection to the desired telecommunications network
  • a computer interface 22 for connection to the computer such as a PC 3 ( Figure 1) .
  • the network interface 21 and computer interface 22 are connected together, for the transfer of data therebetween.
  • the modem 2 comprises a mobile interface 23 for connection to a mobile telephone, and a controller 24 connected to the mobile interface 23 to send signals thereto and to receive information therefrom.
  • the controller 24 is connected to supply signals to a ROM 25 (or other memory) to control the supply of stored information therefrom to a parameter setting circuit 26.
  • the ROM 25 may store appropriate operating parameters for a wide range of countries.
  • the parameters supplied to the parameter setting circuit are determined not by the user of the device, but by the controller 24, based on information which it receives .
  • the parameter setting circuit 26 operates to control the network interface 21 to set the operating parameters of the modem, and hence the properties of the signals supplied to the telecommunications network 1, in order that the network connection means 21 can interact correctly therewith.
  • the mobile interface 23 operates to connect the modem to a mobile telephone, and hence to a mobile telephone network.
  • Figure 3 illustrates a personal computer (PC) /modem system embodying the present invention.
  • the PC 30 is connected to a modem 34, and includes a memory/application area 31, a parameter setting function 33 and a mobile interface 32.
  • the mobile interface 32 can be connected to a mobile telephone, or could itself include all the apparatus required to interface to a mobile telephone network.
  • the parameter setting function 33 operates to set the modem parameter values from the PC 3.
  • the system of Figure 3 operates in the same manner as the modem of Figure 2, the only change being that functional items are distributed differently.
  • the mobile telephone connection means interrogates the mobile telephone network in order to obtain (step 42) information relating to the network within which the phone is operating.
  • the controller 24 within the modem is able to convert this information into location information of the modem.
  • the location information obtained by the mobile interface can be information relating specifically to the country in which the mobile telephone network is located, or may merely identify the mobile telephone network to which the modem is connected, with the controller 24 then being able to determine the country from this information.
  • each network operator has a specific code.
  • the controller 24 can then determine the network operator and country from this code by referring to prestored information.
  • the modem is described above as having a network interface which connects to a PSTN landline telephone network. However, it will be appreciated that the network interface may allow connection of the modem to a mobile telecommunications network.
  • This location information is used by the controller 24 to determine which set of stored operating parameters should be used, based on the country in which the modem is being used, and the controller sends a signal to the ROM 25 (step 43) to send the relevant parameters to the parameter setting circuit 26.
  • the mobile interface 23 makes a physical connection with a mobile telephone, and enquires of the telephone about network and/or country information.
  • the mobile telephone obtains such information by sending a radio signal to the network within which it is operating.
  • the information can be obtained in response to a specific request from the modem, but is more usually obtained by the telephone as soon as it connects to the mobile telephone network.
  • the modem is wireless, that is, the network interface allows connection of the modem to a mobile network, there may be no need for a separate mobile interface.
  • the controller 24 may direct that a radio signal is sent from the network interface to a network within which the device is operating, to obtain the necessary location information.
  • the ROM 25 preferably stores parameters appropriate for a first country data as default country data.
  • This default country data would usually be the home country of the user of the modem, and may be identified by the modem as the parameters obtained when the controller first obtains information from the mobile interface 23. Any updated information relating to other countries can be supplied to the parameter setting circuit on a temporary basis, so that for example when the power has been turned off the modem reverts to home country parameter settings. Alternatively, the modem may automatically revert to home country settings after a certain period of time, or by using a specific command on the PC.
  • the modem When the modem is connected to a mobile phone to obtain the required location information, it may, by sending an appropriate signal over the mobile interface 23, use the phone display or ringer to indicate that a change of country parameter setting has been made.
  • Such a modem has the significant advantage that the modem itself can determine in which country it is operating and therefore which parameter settings are required. The system is therefore simple and easy to operate .
  • the country information received by the modem from the mobile phone can also be used to control a PC application, such as an International Internet Service Provider.
  • the application receives the country information from the modem (or from the mobile phone directly) , and uses it to set country specific parameters in the PC application. For example, these parameters can be : - phone number to dial for local modem pool (e.g. for lowest cost per minute)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un modem (2) pouvant fonctionner dans différents réseaux de télécommunication (1) et mémoriser des paramètres opérationnels requis pour une telle utilisation. Le modem obtient des informations d'emplacement afin de déterminer les paramètres opérationnels requis, en envoyant un signal vers un réseau téléphonique mobile et en interprétant un signal de réponse reçu de manière à identifier le réseau et par conséquent, son emplacement. Le modem peut être connecté à un téléphone mobile pour envoyer le signal au réseau téléphonique mobile.
PCT/EP1998/005028 1997-10-01 1998-08-07 Modems WO1999017527A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU92589/98A AU9258998A (en) 1997-10-01 1998-08-07 Modems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9720887A GB2330033B (en) 1997-10-01 1997-10-01 Modems
GB9720887.0 1997-10-01

Publications (1)

Publication Number Publication Date
WO1999017527A1 true WO1999017527A1 (fr) 1999-04-08

Family

ID=10819918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/005028 WO1999017527A1 (fr) 1997-10-01 1998-08-07 Modems

Country Status (4)

Country Link
AU (1) AU9258998A (fr)
GB (1) GB2330033B (fr)
MY (1) MY121009A (fr)
WO (1) WO1999017527A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60310271T2 (de) 2003-02-06 2007-07-05 Research In Motion Ltd., Waterloo Verfahren und vorrichtung zur umsetzung von kurzwahlrufnummern von dienstzentrale für eine dienstzentrale in einem mobilfunknetz
DE60310140T2 (de) * 2003-02-06 2007-09-27 Research In Motion Ltd., Waterloo Verfahren und vorrichtung zur aussendung von kurzwahlrufnummern für eine dienstezentrale in einem mobilfunknetz

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418165A1 (fr) * 1989-09-15 1991-03-20 Apple Computer, Inc. Modem reconfigurable pour ordinateur ou analogue
WO1994011998A1 (fr) * 1992-11-06 1994-05-26 Compaq Computer Corporation Modem permettant une connexion selective a une ligne terrestre ou a un telephone cellulaire
US5430793A (en) * 1994-02-25 1995-07-04 Intel Corporation Apparatus and method for configuring a computer system and a modem for use in a particular country
US5497339A (en) * 1993-11-15 1996-03-05 Ete, Inc. Portable apparatus for providing multiple integrated communication media

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4841561A (en) * 1987-12-08 1989-06-20 General Datacomm, Inc. Operating default group selectable data communication equipment
EP0459279A1 (fr) * 1990-05-30 1991-12-04 Hayes Microcomputer Products, Inc. Construction d'un module d'interface de ligne global et appareil de télécommunication l'utilisant
FR2677831B1 (fr) * 1991-06-17 1994-12-09 Apple Computer Modem a circuit d'interface de ligne perfectionne, notamment pour ordinateur.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418165A1 (fr) * 1989-09-15 1991-03-20 Apple Computer, Inc. Modem reconfigurable pour ordinateur ou analogue
WO1994011998A1 (fr) * 1992-11-06 1994-05-26 Compaq Computer Corporation Modem permettant une connexion selective a une ligne terrestre ou a un telephone cellulaire
US5497339A (en) * 1993-11-15 1996-03-05 Ete, Inc. Portable apparatus for providing multiple integrated communication media
US5430793A (en) * 1994-02-25 1995-07-04 Intel Corporation Apparatus and method for configuring a computer system and a modem for use in a particular country

Also Published As

Publication number Publication date
GB9720887D0 (en) 1997-12-03
GB2330033B (en) 2002-08-21
AU9258998A (en) 1999-04-23
GB2330033A (en) 1999-04-07
MY121009A (en) 2005-12-30

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