EP1763939A2 - Verfahren und system zum bidirektionalen übertragen von daten zwischen einem datenverarbeitungsgerät und einem router - Google Patents
Verfahren und system zum bidirektionalen übertragen von daten zwischen einem datenverarbeitungsgerät und einem routerInfo
- Publication number
- EP1763939A2 EP1763939A2 EP05742751A EP05742751A EP1763939A2 EP 1763939 A2 EP1763939 A2 EP 1763939A2 EP 05742751 A EP05742751 A EP 05742751A EP 05742751 A EP05742751 A EP 05742751A EP 1763939 A2 EP1763939 A2 EP 1763939A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- data transmission
- transmission method
- layer
- control unit
- 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- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000012545 processing Methods 0.000 title claims abstract description 14
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 10
- 238000004891 communication Methods 0.000 description 5
- 101150012579 ADSL gene Proteins 0.000 description 3
- 102100020775 Adenylosuccinate lyase Human genes 0.000 description 3
- 108700040193 Adenylosuccinate lyases Proteins 0.000 description 3
- 101100172132 Mus musculus Eif3a gene Proteins 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 101001094649 Homo sapiens Popeye domain-containing protein 3 Proteins 0.000 description 1
- 101000608234 Homo sapiens Pyrin domain-containing protein 5 Proteins 0.000 description 1
- 101000578693 Homo sapiens Target of rapamycin complex subunit LST8 Proteins 0.000 description 1
- 102100027802 Target of rapamycin complex subunit LST8 Human genes 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2898—Subscriber equipments
Definitions
- the invention relates to a method for the bidirectional transmission of data between a data processing device and a router.
- the invention further relates to a system for the bidirectional transmission of data between a data processing device and a router.
- XDSL is the generic term for a digital subscriber line that transmits data according to ADSL, VDSL, HDSL, etc.
- WLAN routers are so-called standalone devices that are installed in the user's household and essentially have three central components. Specifically, these are the access point, the so-called access point, in the form of the radio interface, the access controller, the so-called access controller, and the actual data transmission application, that is to say the so-called Internet
- the WLAN router works according to the IEEE standard 802.11 and therefore has the radio function according to 802.11a or 802.11b and the functions according to 802. IX for authentication of the user and encryption of the air distance.
- the functions of secured mobility and management, DHCP, IP routing, IP tunneling, 802. IQ trunking and address translation with firewall for the air route and the Management of a virtual private network can be guaranteed.
- the invention is therefore based on the object of specifying a method and a system for bidirectional data transmission which make it possible to overcome the data path between a subscriber terminal, for example a computer, by means of two different data transmission methods without control over the exchange to lose the last connection to the subscriber terminal.
- this object is achieved according to the invention by a method for the bidirectional transmission of data between a data processing device and a router, in which the data are transmitted over several partial routes, with a) the data being transmitted over a first partial route between the data processing device and an access point an air interface is transmitted according to a predeterminable first data transmission method; b) the data are transmitted over a second section between the access point and a central control unit via a cable-based connection according to a predeterminable second data transmission method; c) the data are transmitted over a third section between the central control unit and a router according to a predeterminable third data transmission method; d) wherein the access point has a first layer required for data transmission according to the first data transmission method and the layers which are arranged above the layers for data transmission according to the first data transmission method are arranged in the central control unit.
- the access point only comprises the so-called physical layer (or also called layer 1) for data transmission using the first data transmission method. All other layers that are required for the organization, administration and management of the access point can be shifted to the central control unit so that the network operator can handle them. On the one hand, this considerably simplifies the commissioning and maintenance of the subscriber-side connection, and at the same time results in greater sovereignty for the network operator over the external components that communicate with its resources and are arranged on the subscriber side.
- layer 1 physical layer
- the first data transmission method is an IEEE 802.11 method and the second data transmission method is an xDSL method.
- the xDSL connection can provide the physical data transport for the IEEE 802.11 Layer 2 level.
- the CSMA / CD bus could provide this data path for the layer 2 data to be signaled as part of the Ethernet environment.
- the first layer in the access point is therefore an IEEE 802.11 PHY layer. Accordingly, an IEEE 802.11 MAC layer and possibly layers above it are arranged in the central control unit.
- Access point as an interface module operating according to the second data transmission method, an xDSL modem or, in an enterprise environment, a CSMA / CD bus controller. Further advantageous refinements of the invention can be found in the remaining subclaims.
- Figure 1 is a schematic representation of the functional units of an access point and a central control unit
- FIG. 2 shows a schematic representation of a first communication network in which the access point and the central control unit according to FIG. 1 are integrated;
- FIG. 3 shows a schematic representation of a second communication network, in which the access point and the central control unit according to FIG. 1 are integrated.
- FIG. 1 shows a schematic representation of a subscriber terminal 2, an access point 4 and a central control unit 6.
- the subscriber terminal 2 is designed here as a laptop, which is wirelessly connected to the access point 4 for the exchange of voice and / or data signals.
- the data transmission according to IEEE 802.11 takes place on this first section T1 of the data transmission, i.e. the laptop is equipped with an appropriate wireless LAN card, e.g. as a PCMCIA plug-in card and an IEEE 802.11 client.
- an appropriate wireless LAN card e.g. as a PCMCIA plug-in card and an IEEE 802.11 client.
- the access point 4 includes the network element 8 required to represent the physical layer 802.11 PHY (layer 1) for receiving and sending the data via IEEE 802.11. Furthermore, the access point comprises an xDSL modem 10 which transmits the data to a second section T2 of the data transmission
- This second section T2 also represents the physical boundary between the installation of the access point 4 and the subscriber side network operator installation from the central control unit 6.
- the central control unit 6 also includes an xDSL modem 12 for receiving or transmitting the user data, but also the higher layers belonging to the physical layer of IEEE 802.11, such as a media access control layer 14 of the second level and higher layers 16
- a layer 18 with components working according to the Internet Protocol is used to overcome a third section T3 of the data transmission to a router (not shown further here).
- a comparatively slim access device 4 is achieved which basically only has the physical layer 8 with regard to the WLAN functionality.
- the IP address of the access device is managed in MAC layer 14, so that the actual LAN switches (eg the DSLAMs according to FIG. 2) have a layer 2 data path signaled through xDSL.
- the access device 4 can be connected to the LAN switch via an Ethernet cable, the electrical power supply from the central control unit 6 also being able to be designed as a Power of Ethernet connection. This also eliminates the need for the subscriber to connect the network device to the access device 4, which is usually not particularly optically detachable.
- the access device 4 is therefore essentially only a converter which, in the present exemplary embodiment, connects the wireless data transmission world with the wire-based data transmission world (radio to wire media Converter).
- the central control unit 6, which is arranged and administrable by the network operator, therefore exercises hierarchical control for the access device 4 with its layer 2 functionality 14 and the layers 16, 18 above it, such as user authentication according to 802.ix, encryption on the air route, and the like All other management of the WLAN and ensuring the mobility of the user moving in the WLAN area.
- Figure 2 now gives a schematic representation of an overview of a first communication network NW.
- the architecture described above with regard to the design and task distribution of the access device 4 and the central control unit 6 has been implemented accordingly and is shown in detail for the access device 4c.
- the access devices 4a to 4c are connected to a multiplexer DSLAM (Digital Subscriber Line Access Multiplexer), which still represents the connection to the central control unit 6 in the context of the second section T2.
- DSLAM Digital Subscriber Line Access Multiplexer
- a central server for security management RADIUS is also connected to the central control unit 6.
- FIG. 3 shows a schematic representation of an overview of a second communication network NW ', which is also equipped with the access device 4 described above and the central control unit 6.
- NW ' the second communication network
- an ADSL connection is provided for the second section T2 of the data transmission, which is split by means of a splitter 22 into a voice data connection to a telephone 20 and a pure data connection to the laptop 2.
- a dashed line 24 in FIG. 2 is already entered in FIG.
- V5.x connection for the representative of all known transport methods Voice traffic to a public telephone network PSTN and a packet-switched Internet Protocol connection to an IP network with Quality of Service properties QoS-IP is specified.
- connection of the access device 4 and the central control unit 6 can only be carried out in a very simple manner, in particular the security policy which is otherwise expensive to set up by means of the RADIUS security server on the network side can be adjusted.
- the xDSL link between the access device 4 and the carrier-side multiplexer DSLAM must therefore be established.
- the 802.11 client of the subscriber terminal 2 wirelessly sends requests to associate the 802.11 client to the access device 4, which transmits these association requests to the central control unit 6 via the DSLAM.
- the third step now provides that the central control unit 6 detects the association request from the client and opens a port for this client. This port is switched to a so-called unauthorized state so that only data traffic according to IEEE 802.
- the access device 4 now answers the association request for 802. Ix back to the 802.11 client of the subscriber terminal 2 and requests the latter to provide its identity.
- the response from the 802.11 client contains this identity, which is transmitted over the network to the RADIUS server for authentication.
- an ACCEPT or a REJECT packet is sent from the authentication server RADIUS to the central control unit 6.
- the central control unit 6 sets the previously opened but still unauthorized port to an authorized state, whereupon any data traffic is now transmitted to the access device 4 and the 802.11 client.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004027060A DE102004027060A1 (de) | 2004-06-03 | 2004-06-03 | Verfahren und System zum bidirektionalen Übertragen von Daten zwischen einem Datenverarbeitungsgerät und einem Router |
| PCT/EP2005/005536 WO2005117516A2 (de) | 2004-06-03 | 2005-05-21 | Verfahren und system zum bidirektionalen übertragen von daten zwischen einem datenverarbeitungsgerät und einem router |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1763939A2 true EP1763939A2 (de) | 2007-03-21 |
Family
ID=35454876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05742751A Withdrawn EP1763939A2 (de) | 2004-06-03 | 2005-05-21 | Verfahren und system zum bidirektionalen übertragen von daten zwischen einem datenverarbeitungsgerät und einem router |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070223501A1 (de) |
| EP (1) | EP1763939A2 (de) |
| CN (1) | CN101061670A (de) |
| DE (1) | DE102004027060A1 (de) |
| WO (1) | WO2005117516A2 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6587479B1 (en) * | 1999-04-21 | 2003-07-01 | Opencell Corp. | Architecture for signal distribution in wireless data network |
| US7173923B2 (en) * | 2000-03-17 | 2007-02-06 | Symbol Technologies, Inc. | Security in multiple wireless local area networks |
| US7738407B2 (en) * | 2001-08-03 | 2010-06-15 | At&T Intellectual Property Ii, L.P. | Method and apparatus for delivering IPP2T (IP-push-to-talk) wireless LAN mobile radio service |
| CN1689276A (zh) * | 2002-04-01 | 2005-10-26 | 斯科特·D·莫多克 | 组合收费电话和无线接入技术的数据通信系统 |
| US7054627B1 (en) * | 2002-04-29 | 2006-05-30 | Advanced Micro Devices, Inc. | Method and system for locating a wireless network access point at a mobile computing device |
| US20030210700A1 (en) * | 2002-05-09 | 2003-11-13 | Ambicom, Inc. | System and method of dynamically switching between 802.11b client and access point in MS-Windows environment |
| US20030220111A1 (en) * | 2002-05-13 | 2003-11-27 | Kang Ki Bong | DSL mobile access router system and method |
| US7113498B2 (en) * | 2002-06-05 | 2006-09-26 | Broadcom Corporation | Virtual switch |
| US7499401B2 (en) * | 2002-10-21 | 2009-03-03 | Alcatel-Lucent Usa Inc. | Integrated web cache |
| US7382771B2 (en) * | 2003-03-13 | 2008-06-03 | In Motion Technology, Inc. | Mobile wireless hotspot system |
-
2004
- 2004-06-03 DE DE102004027060A patent/DE102004027060A1/de not_active Withdrawn
-
2005
- 2005-05-21 EP EP05742751A patent/EP1763939A2/de not_active Withdrawn
- 2005-05-21 US US11/628,139 patent/US20070223501A1/en not_active Abandoned
- 2005-05-21 CN CNA2005800183016A patent/CN101061670A/zh active Pending
- 2005-05-21 WO PCT/EP2005/005536 patent/WO2005117516A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005117516A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005117516A2 (de) | 2005-12-15 |
| US20070223501A1 (en) | 2007-09-27 |
| DE102004027060A1 (de) | 2005-12-29 |
| WO2005117516A3 (de) | 2007-05-10 |
| CN101061670A (zh) | 2007-10-24 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20081202 |