WO1998050982A2 - Method and apparatus for allowing permanent or semi-permanent connection to a data network using an isdn connection - Google Patents
Method and apparatus for allowing permanent or semi-permanent connection to a data network using an isdn connection Download PDFInfo
- Publication number
- WO1998050982A2 WO1998050982A2 PCT/SE1998/000824 SE9800824W WO9850982A2 WO 1998050982 A2 WO1998050982 A2 WO 1998050982A2 SE 9800824 W SE9800824 W SE 9800824W WO 9850982 A2 WO9850982 A2 WO 9850982A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connection
- isdn
- permanent
- data network
- search criteria
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
- H04Q11/0457—Connection protocols
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/04—Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna
Definitions
- the present invention relates to data communication, and in particular to the use of ISDN (Integrated Services Digital Network) connections for data communication.
- ISDN Integrated Services Digital Network
- PSTN Public Services Telephone Network
- ISDN ISDN lines
- PSTN telephone lines or ISDN connections may be the only realistic solution.
- An ISDN connection offers three channels on the same physical link: two circuit switched B channels of 64kbit/s each for dial-up access for data or speech connections and one packet switched D channel.
- the total bandwidth of the D channel is 16 kbit/s, but the effective capacity for control information or data is 9.6 kbit/s.
- a protocol known as LAPD (Link Access Procedure for D channel) is used for communication on the D channel.
- IP Internet Protocol
- a flexible Internet search tool based on the standard ISDN interface may be implemented at a reasonable cost.
- the user can control the quality of service by selecting the bandwidth of the IP channel.
- the solution enables the integration and interaction of voice, video and data services.
- the solution enables the ISDN subscriber to act as a server, and thereby content provider in a data network, and to receive e-mail directly to the ISDN terminal.
- Figure 1 illustrates schematically the connection from the ISDN subscriber via the ISDN network to the Internet according to the invention
- Figure 2 illustrates the connection from the ISDN subscriber via the ISDN network to the Internet in more detail
- Figure 3 is a flow chart of the actions required to install and activate the services according to the invention.
- Figure 4 is a flow chart of the actions required to connect to the Internet according to the invention.
- Figure 5 is a flow chart of the actions required to specify the search profile and the conditions for notification when the conditions are met.
- FIG. 1 shows an ISDN connection to a computer network for retrieving data according to the invention.
- the computer network is the Internet, but similar connections may be set up to any computer network, for example a network which allows an X.25 or Internet Protocol (IP) connection.
- An enhanced ISDN terminal known as a PMMX (Personal Multimedia Exchange) 1 is connected to an ISDN exchange 3.
- the ISDN exchange is connected via an Internet access server 5 to the computer network 7.
- Other servers 9 are connected to the data network as well.
- the PMMX is a workstation, a PC or a local router, configured as described in connection with Figure 3.
- the PMMX does not have a fixed IP address, but obtains an IP address from the IP handler each time a coimection is set up. The IP address is returned each time a connection is ended.
- the PMMX contains a user interface for the handling of the three ISDN channels and for handling operation and maintenance functions in the network, and also contains functions for utilizing the IP interface included in the Personal Computer (PC), workstation or router used.
- PC Personal Computer
- a user may log in to the PMMX with a user identity and a password, or in any other way known in the ait, for example with voice recognition.
- FIG. 2 shows the connection from a subscribers PMMX 1 ' to a data network, which in this embodiment in the Internet T in more detail.
- the PMMX is used to handle the two B channels and the D channel of an ISDN connection.
- the PMMX 1 ' is connected to an ISDN network 11, comprising at least one ISDN exchange.
- the ISDN network 11 is in turn connected via a 2 Mbit/s PRI (Primary Rate
- the ISDN network 11 is also connected via a PHI (Packet Handler Interface) to a packet handler 15, which may be an ordinary packet handler used as a gateway to an X.25 network 17.
- the packet handler is connected via an interface II to a D channel router 19 for coimection to the Internet 7'.
- the connection from the ISDN network 11 via the packet handler 15 and the D channel router 19 is used for the data transmission on the D channel. It will be obvious to the skilled person that the ISDN router and the D channel router may be implemented as one unit.
- the ISDN router 13 and the D channel router 19 are connected via an Ethernet connection 21 to a router 23, which is connected to the data network T , and connection means 25 for authentication of the user and activation of the IP address and other IP parameters.
- the means 25 will comprise a Dynamic Host Configuration Protocol (DHCP) server, a Remote Authentication Dial-in User Service (RADIUS) and a Domain Name Server (DNS) 25.
- DHCP Dynamic Host Configuration Protocol
- RADIUS Remote Authentication Dial-in User Service
- DNS Domain Name Server
- the ISDN router 13, the D channel router 19, the router 23 and the connection means 25 constitute the Internet packet handler IPH.
- the router 23 and the connection means 25 would have to be adapted to this kind of data network.
- the D channel may be used as a permanent connection to any data network, for example, the Internet.
- this channel is also needed to control the use of the two B channels.
- the D channel is a packet switched channel, with a well defined protocol: the LAPD (Link Access Procedure for channel D).
- LAPD Link Access Procedure for channel D
- the ability to use the D channel for transfer of user data is defined in the ISDN standard X.31.
- the header information in each packet transmitted on the D channel includes, in the Service Access Point Identifier (SAPI) field, information about the type of information included, according to the LAPD protocol. Control information for the B channels is denoted "0" in the SAPI field. Data communication, for example with the Internet, which should simply be transmitted through the ISDN exchanges, is denoted " 16" in the SAPI field.
- SAPI Service Access Point Identifier
- connection between the PMMX and the packet handler is set up by dialling the number of the packet handler. Then all packets intended for the packet handler are marked with "16" in the SAPI field, so that they will be transmitted through the telephone network 11 directly to the packet handler.
- certain major networks such as the Internet
- data packets intended for the Internet might be identified by the digit " 17", which is currently not used in the LAPD protocol.
- the channel may be used for data communication and then, when the need arises, for control information about the B channels, by including one or more data packets identified as intended for the switch, while still maintaining the data connection to the Internet, as shown in figure 1.
- Step 100 The ISDN terminal is installed and configured in the way common in the art.
- Step 102 The additional software and hardware needed in the PMMX is installed.
- Step 104 The PMMX monitor, which is the management application used to control the function of the ISDN is installed.
- Figure 4 is a flowchart of the actions to be taken when a subscriber wishes to connect and log in to the Internet according to the invention.
- Step 110 The user initiates the coimection to the Internet Packet Handler (IPH). This will normally be done by clicking on an icon on the computer screen, or by entering a command through the user interface, which will initiate the dialling of the number to the packet handler.
- IPH Internet Packet Handler
- Step 112 The connection procedure is performed over the D channel to the IPH using X.31 specifications.
- Step 114 The user identifies himself by entering the appropriate user identity and password.
- the user identity and the password may be stored on any medium, such as a smart card or a data file, or it may be typed by the user.
- Step 1 16 When the connection between the PMMX and the IPH has been set up, the control protocol negotiation will be performed to establish a connection of the desired bandwidth.
- Step 118 User authentication is carried out by the connection means 25, based on the identification offered in step 114.
- Step 120 The PMMX requests the necessary parameters. When connecting to an IP (Internet Protocol) network, this request is based on the Request for Comment (RFC) concerning DHCP. At least the following parameters are requested and updated from the IPH-DHCP server:
- Step 122 The connection between the PMMX and the Internet is set up.
- step 116 the de facto standard protocol today for use together with the IP is Point-to-Point Protocol (PPP). This also enables the authorization in step 118 to be carried out by the connection means 25.
- PPP Point-to-Point Protocol
- Figure 5 is a flow chart of the actions to be taken when the search profile, and actions to be taken when the conditions are met, are to be specified.
- the connection between the PMMX and the data network must be set up first, as described in figure 4.
- Step 130 The subscriber specifies the conditions to be fulfilled by the search.
- Step 132 The subscriber specifies if any actions should be taken when the conditions are met in the search, for example when a specified item is advertised for sale at a price lower than a specified price, for example, if an e-mail should be sent to the vendor to order the item.
- Step 134 The subscriber specifies the way in which he wishes to be notified.
- the notification may be sent to the user in a number of different ways:
- the PMMX may call the user's fixed or mobile phone, or one of the B channels in the ISDN connection, and inform via a voice message.
- the PMMX may send a message to the user's pager.
- the PMMX may send an e-mail to the user, at any location, for example, at work.
- Step 136 The subscriber specifies any other restrictions to the notification, for example, no phone notification between 11pm and 7am.
- actions to be taken once a specific condition is met For example, a product or a service may be ordered automatically once the conditions are favourable. Selling or buying orders on the stock exchange may be initiated. In such cases, the PMMX informs the user that the condition is met and asks if the action should be carried out, or simply informs the user that the action has been carried out.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU74614/98A AU7461498A (en) | 1997-05-07 | 1998-05-05 | Method and device in isdn network |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9701716A SE518018C2 (en) | 1997-05-07 | 1997-05-07 | Method and apparatus for permanent or semi-permanent connection between an ISDN terminal and a data network |
SE9701716-4 | 1997-05-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998050982A2 true WO1998050982A2 (en) | 1998-11-12 |
WO1998050982A3 WO1998050982A3 (en) | 1999-02-04 |
Family
ID=20406863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1998/000824 WO1998050982A2 (en) | 1997-05-07 | 1998-05-05 | Method and apparatus for allowing permanent or semi-permanent connection to a data network using an isdn connection |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU7461498A (en) |
SE (1) | SE518018C2 (en) |
WO (1) | WO1998050982A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001015395A1 (en) * | 1999-08-20 | 2001-03-01 | Nokia Networks Oy | Telecommunications system |
EP1246439A1 (en) * | 2001-03-26 | 2002-10-02 | Alcatel | System and method for voice controlled internet browsing using a permanent D-channel connection |
DE10038557B4 (en) * | 2000-08-03 | 2005-12-15 | Siemens Ag | System and method for the transmission of data over data networks, in particular the Internet, with asynchronous data connection |
EP1001645A3 (en) * | 1998-11-12 | 2006-06-28 | Tenovis GmbH & Co. KG | Method, telecommunication terminal and telecommunication exchange for bidirectional data transmission on a transmission line |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0496245A2 (en) * | 1991-01-24 | 1992-07-29 | Tokyo Electric Co., Ltd. | Facsimile equipment having a telephone function |
GB2269077A (en) * | 1992-07-22 | 1994-01-26 | Ibm | Conversion of ISDN LAPB and LAPD frames |
EP0596698A2 (en) * | 1992-11-05 | 1994-05-11 | Canon Kabushiki Kaisha | Communication terminal apparatus and communication method |
US5442630A (en) * | 1991-05-24 | 1995-08-15 | Gagliardi; Ugo O. | ISDN interfacing of local area networks |
US5450402A (en) * | 1993-04-02 | 1995-09-12 | Ricoh Company, Ltd. | Transmission control system in data terminal equipment |
US5587999A (en) * | 1994-08-12 | 1996-12-24 | Nec Corporation | D channel packet communication system and a method of D channel packet communication |
-
1997
- 1997-05-07 SE SE9701716A patent/SE518018C2/en unknown
-
1998
- 1998-05-05 AU AU74614/98A patent/AU7461498A/en not_active Abandoned
- 1998-05-05 WO PCT/SE1998/000824 patent/WO1998050982A2/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0496245A2 (en) * | 1991-01-24 | 1992-07-29 | Tokyo Electric Co., Ltd. | Facsimile equipment having a telephone function |
US5442630A (en) * | 1991-05-24 | 1995-08-15 | Gagliardi; Ugo O. | ISDN interfacing of local area networks |
GB2269077A (en) * | 1992-07-22 | 1994-01-26 | Ibm | Conversion of ISDN LAPB and LAPD frames |
EP0596698A2 (en) * | 1992-11-05 | 1994-05-11 | Canon Kabushiki Kaisha | Communication terminal apparatus and communication method |
US5450402A (en) * | 1993-04-02 | 1995-09-12 | Ricoh Company, Ltd. | Transmission control system in data terminal equipment |
US5587999A (en) * | 1994-08-12 | 1996-12-24 | Nec Corporation | D channel packet communication system and a method of D channel packet communication |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1001645A3 (en) * | 1998-11-12 | 2006-06-28 | Tenovis GmbH & Co. KG | Method, telecommunication terminal and telecommunication exchange for bidirectional data transmission on a transmission line |
WO2001015395A1 (en) * | 1999-08-20 | 2001-03-01 | Nokia Networks Oy | Telecommunications system |
GB2353665B (en) * | 1999-08-20 | 2003-12-24 | Nokia Telecommunications Oy | Telecommunications system |
DE10038557B4 (en) * | 2000-08-03 | 2005-12-15 | Siemens Ag | System and method for the transmission of data over data networks, in particular the Internet, with asynchronous data connection |
US7287080B2 (en) | 2000-08-03 | 2007-10-23 | Siemens Aktiengesellschaft | System and method for transmitting data via data networks, particularly the internet, using an asynchronous data connection |
EP1246439A1 (en) * | 2001-03-26 | 2002-10-02 | Alcatel | System and method for voice controlled internet browsing using a permanent D-channel connection |
Also Published As
Publication number | Publication date |
---|---|
AU7461498A (en) | 1998-11-27 |
SE518018C2 (en) | 2002-08-13 |
WO1998050982A3 (en) | 1999-02-04 |
SE9701716L (en) | 1998-11-08 |
SE9701716D0 (en) | 1997-05-07 |
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