EP1832067A1 - Noeud repeteur pour un reseau - Google Patents

Noeud repeteur pour un reseau

Info

Publication number
EP1832067A1
EP1832067A1 EP05807973A EP05807973A EP1832067A1 EP 1832067 A1 EP1832067 A1 EP 1832067A1 EP 05807973 A EP05807973 A EP 05807973A EP 05807973 A EP05807973 A EP 05807973A EP 1832067 A1 EP1832067 A1 EP 1832067A1
Authority
EP
European Patent Office
Prior art keywords
node
data
nodes
repeater node
network
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Withdrawn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
EP05807973A
Other languages
German (de)
English (en)
Inventor
Stephan Lietz
Thomas Eymann
Karsten Mauler
Christoph Kunze
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1832067A1 publication Critical patent/EP1832067A1/fr
Withdrawn legal-status Critical Current

Links

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]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40091—Bus bridging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits
    • 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]
    • H04L12/46—Interconnection of networks
    • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L12/462—LAN interconnection over a bridge based backbone
    • H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport

Definitions

  • the invention relates to a repeater node for a network, a network, a method for transmitting data, a computer program and a computer program product.
  • Networks according to the IEEE 394 standard have a number of nodes.
  • the maximum number of nodes is limited by the cable length, the transmission speed and the arrangement of the nodes.
  • an IEEE1394 standard serial bus supports asynchronous and isochronous data transfer. In this case, it is provided that a reception of asynchronous data must be acknowledged by a node receiving this data in order to thus ensure secure data transmission. For isochronous data, such an acknowledgment is not necessary.
  • cable types between two nodes are specified with a respective maximum length: UTP5-100 m, POF-50 m, HPCF-100 m, MMF-100 m and STP-4.5 m.
  • a maximum distance of 100 meters is permitted.
  • current ICs (integrated circuits or physical chips) needed to implement an IEEE1394 standard node do not allow greater distance between two such nodes.
  • the repeater node according to the invention is located in a network having a number of nodes, and is arranged in particular along a transmission path between two nodes of this network.
  • the repeater node is adapted to a
  • the inventive repeater node is designed or has the function, data or data packets that are not addressed to him, but from the one node of
  • Networks are addressed to the other nodes to confirm.
  • the data is transferred between the two nodes via the repeater node.
  • further nodes can be located within the network between the two nodes next to the repeater node along the transmission path.
  • acknowledgment of the reception of asynchronous data between two nodes separated in the network by the repeater node occurs only through the repeater node.
  • Other nodes whose links do not pass through the repeater node may provide acknowledgments of receipt for data addressed to them.
  • the repeater node is provided for a designed according to an IEEE1394 standard network and is adapted to confirm the reception of asynchronous data.
  • a currently maximum possible distance between two nodes according to the IEEE1394 standard, in particular IEEE1394B standard, is 100 meters. Larger distances between such nodes are not possible due to certain maximum signal propagation times within the network. This primarily affects a so-called "Boss_Restart_Time" period. Through this period, a waiting time of a node is set to an acknowledgment of receipt for data sent out by this node.
  • IEEE1394 IEEE1394 standard, it is possible to extend a link to transfer data between two nodes within the network.
  • the inventive repeater node has a logic for confirming receipt of the data or data packets.
  • a conventional IEEE1394 standard node in a corresponding network has different functionalities, which are divided into three different layers. Two of these layers, a physical layer and a link layer, are typically realized by hardware through one or two ICs (integrated circuits), a so-called physical IC and / or a link IC.
  • ICs integrated circuits
  • PHY physical layer controller
  • LLC link-layer controller
  • the repeater node it is possible, in particular with the logic, to confirm the reception of the data to a node formed as transmitter of the data, although this data is addressed to another node, not to the repeater node. Due to this logic, the repeater node differs significantly from - A -
  • the repeater node according to the invention is therefore suitable for all physical media, such as transmission lines or radio links, which are specified in particular according to the IEEE1394B standard.
  • Node according to the IEEE1394 standard implemented by the repeater node according to the IEEE1394 standard.
  • the network according to the invention has a number of nodes and at least one repeater node, which is arranged in particular along a transmission path between two of these nodes.
  • the at least one repeater node is a receipt of data that are addressed by a first of these nodes to a second of these nodes, confirmable.
  • the repeater node is located along the transmission link between the two communicating nodes.
  • the network according to the invention is designed according to an IEEE1394 standard and has the nodes designed according to this IEEE1394 standard and the at least one repeater node designed according to this IEEE1394 standard.
  • This repeater node according to the IEEE1394 standard essentially has a physical layer and has the special function implemented in the logic, preferably asynchronous, to confirm within the network data packets that are not addressed to it ,
  • Network complies with the IEEE1394 standard and is not tampered with by the repeater node according to the IEEE1394 standard.
  • a verification of the data within the repeater node according to the invention is carried out according to the IEEE1394 standard or according to a functionality of the provided in the repeater node physical layer (physical chip).
  • a bit-by-bit regeneration of a stream of the data transmitted within the network takes place.
  • it can be provided by an additional function or an additional module that the repeater node according to the invention amplifies the data when forwarding to those nodes to which the data is actually addressed.
  • the method according to the invention serves to transmit data within a network having a number of nodes.
  • data is sent from a first of these nodes to a second of these nodes.
  • a reception of this data is confirmed by at least one, in particular arranged along the transmission path between these two nodes, repeater node.
  • the at least one repeater node a Receive of data that are not addressed to these at least one repeater node to be confirmed.
  • Network can be significantly increased.
  • the at least one repeater node data that are not addressed to him but each addressed to one of the two nodes confirmed.
  • the data is transferable over multiple repeater nodes and thus a corresponding distance.
  • data addressed by a node designed as a transmitter to a receiver designed as a node is sent to this receiver.
  • a reception of this data is confirmed by the repeater node by a signal directed to the transmitter.
  • the repeater node is sent by the receiver an answer giving a receipt of the data information.
  • a corresponding signal is sent from the repeater node to the transmitter.
  • the sender is informed that another response, a so-called "Response
  • the repeater node informs the transmitter via appropriate signals whether the data has either arrived at the receiver ("resp.") Or has not arrived (“resp error”) with the additional logic provided in the repeater node according to the invention at a point in time as soon as the repeater node has received a reply from the addressed receiver
  • resp. the data has either arrived at the receiver
  • resp error the additional logic provided in the repeater node according to the invention at a point in time as soon as the repeater node has received a reply from the addressed receiver
  • required signal propagation times for an exchange of data to comply with and thus the exchange of data over greater distances, than was previously possible to realize.
  • the invention can be used, for example, in a digital, audio-visual communication system with a network, in particular according to the IEEE1394 standard.
  • Such a network can have up to 63 nodes, which are interconnected via different lengths of transmission links.
  • Network bridges to IEEE 1394.1 allow up to 1023 of these networks to be interconnected.
  • the computer program with program code means according to the invention is designed to carry out all the steps of the method according to the invention when this computer program is carried out on a computer or a corresponding arithmetic unit, in particular one of the inventive device, such as the repeater node according to the invention and / or the network according to the invention.
  • the computer program product according to the invention with program code means is provided for carrying out the method according to the invention when this computer program is carried out on a computer or a corresponding arithmetic unit, in particular one of the devices according to the invention, such as the inventive repeater node and / or the network according to the invention.
  • FIG. 1 shows a schematic representation of a first embodiment of a network according to the invention with a repeater node according to the invention.
  • Figure 2 shows a second embodiment of a network according to the invention with a repeater node according to the invention in a schematic representation.
  • FIG. 3 shows a third embodiment of a network according to the invention with a repeater node according to the invention in a schematic representation.
  • FIG. 1 shows a schematic representation of a first embodiment of a network 1 according to the invention, for example according to the IEEE1394 standard, which has two nodes 5, 7 according to the IEEE1394 standard. Along the transmission path of these two nodes 5, 7 a erf ⁇ ndungswasher repeater node 3 is arranged.
  • the first node 5 When carrying out the preferred embodiment of the method according to the invention, provision is made for the first node 5 to make a request to the second node 7 or to send data addressed to this second node 7.
  • the repeater node 3 is advantageous.
  • Method sends the repeater node 3 after receiving the asynchronous data 9 a so-called "ack_pending" signal 15 for request confirmation to the first node 5.
  • the first node 5 is communicated by the repeater node 3 that the request is in progress or that the Data 9 is sent or transmitted.
  • the repeater node 3 forwards the data 9 to the second node 7, to which the data 9 are addressed.
  • the second node 7 sends to the repeater node 3 a response (acknowledge) signal 13 which gives information about a reception of the data 9.
  • a corresponding acknowledgment of the reception is sent as a signal 17 ("ack response") from the repeater node 3 the first node 5 passed.
  • the repeater node 3 confirms when performing the method
  • FIG. 2 shows a schematic representation of a second embodiment of a network 19 according to the invention.
  • This network 19 according to the invention has a first node 23 and a second node 25.
  • the network 19 and the nodes 23, 25 are preferably designed according to the IEEE1394 standard.
  • a connection between the nodes 23, 25 within the network 19 is provided by a cable 37.
  • a repeater node 21 is connected along a transmission path between the two nodes 23, 25 via the line 37 to these nodes 23, 25.
  • the nodes 23, 25 according to the IEEE1394 standard have different functionalities, which are divided into three different layers 31, 33, 35 and layers.
  • the nodes 23, 25 hereby have a physical layer 31 (physical layer controller, PHY) or a link layer (link-layer controller, LLC) 33.
  • Applications of these nodes 23, 25 are implemented within the third layer 35.
  • the inventive repeater node 21 consists on the one hand of a physical layer (physical layer controller, PHY) 27 with at least 2 outputs and optionally transceiver modules corresponding to the physical line 37 used.
  • PHY physical layer controller
  • Repeater node 21 in addition to a logic 29, which is designed to provide receipt of data.
  • Line 37 arranged repeater node 21 happen. With the additional logic 29, the first node 23 is acknowledged receipt of this data by the repeater node 21, although this data is not addressed to the repeater node 21.
  • a distance d between two nodes 23, 25 according to the IEEE1394 standard in the network 19 according to the IEEE1394 standard is currently 100 meters. Larger distances are due maximum signal propagation times are not permitted when transmitting data.
  • the inventive repeater node 21 is a waiting time of a node 23, 25 to an acknowledgment for a transmitted data packet despite a distance d between the two nodes 23, 25, which may now be greater than 100 meters, within the permissible parameters according to the IEEE1394 standard or limits for maximum
  • the schematically illustrated network 39 shown in FIG. 3 shows nodes 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112 interconnected by transmission links and one along a transmission link between the two nodes 109 110 arranged inventive Repeaterknoten 99. All nodes 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 112 within the formed according to the IEEE1394 standard network 39 only the maximum allowed for this IEEE1394 standard Distances from each other. However, the node 110 can, since he over the Repeaterknoten 99 according to the invention with the other
  • reception of data exchanged between the node 110 and one of the other nodes 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 112 can be confirmed, although these data are not addressed to the repeater node 99.
  • this repeater node 99 can be equipped with further, complex functionalities. In one possible implementation variant, it is provided that the repeater node 99 confirms receipt of all data independently of whether such data or requests pass that line or bus branch at which the repeater node 99 is arranged or is not arranged.
  • repeater node 99 sends a corresponding acknowledgment to node 103.
  • node 103 sends data or a request to node 106
  • node 103 gets both from the repeater node 99 as well as the node 106 a corresponding confirmation.
  • the node 106 will only process the first received acknowledgment and discard a subsequently arriving acknowledgment. Should a receipt-confirming "ack_pending" signal first arrive at node 103, then the repeater node 99 will forward the "ack_response" signal to node 103 in accordance with the acknowledgment from node 106.
  • a further realization possibility of the invention provides that the repeater node 99 merely confirms a reception of data or requests that are between nodes 110 and 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 112, the within the network 39 are separated by the repeater node 99, actuated. This means that, for example, a transmission of data or a request from the node 100 to the node 108 is not taken into account by the repeater node 99. In contrast, a transmission of data or a request from the node 100 to the node 110 is confirmed by the repeater node 99.
  • the repeater node 99 has a bus structure (topology map) of the network 39 known.
  • Such a bus structure can be created independently by the repeater node 99, in which it responds, for example, to all nodes 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112 of the network 39 and thereby notices itself. at which of the inputs or ports (0 or 1) of the repeater node 99, the nodes 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112 are located.
  • Another possibility would be that it queries the bus structure at a so-called root node 112 at a central location of the network 39 and examines which of the nodes 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110 in the direction of this routing node 112 and which of the nodes 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110 are separated from the routing node 112 by the repeater node 99.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

Noeud répéteur (3) pour un réseau (1) comportant un certain nombre de noeuds (5, 7), qui est conçu pour accuser la réception de données (9) adressées par un des noeuds (5, 7) à un deuxième noeud (5, 7). Outre le noeud répéteur (99), le réseau (39) peut comporter également plusieurs noeuds (100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112).
EP05807973A 2004-12-23 2005-11-22 Noeud repeteur pour un reseau Withdrawn EP1832067A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004062034A DE102004062034A1 (de) 2004-12-23 2004-12-23 Repeaterknoten für ein Netzwerk
PCT/EP2005/056148 WO2006069859A1 (fr) 2004-12-23 2005-11-22 Noeud repeteur pour un reseau

Publications (1)

Publication Number Publication Date
EP1832067A1 true EP1832067A1 (fr) 2007-09-12

Family

ID=35636710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05807973A Withdrawn EP1832067A1 (fr) 2004-12-23 2005-11-22 Noeud repeteur pour un reseau

Country Status (5)

Country Link
US (1) US20080101383A1 (fr)
EP (1) EP1832067A1 (fr)
JP (1) JP2008526061A (fr)
DE (1) DE102004062034A1 (fr)
WO (1) WO2006069859A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2041890B1 (fr) 2006-07-14 2017-03-01 Multitone Electronics Plc Système et procédé de télécommunication
GB2449278B (en) 2007-05-16 2009-10-07 Multitone Electronics Plc Telecommunications system and method
US9183693B2 (en) * 2007-03-08 2015-11-10 Cfph, Llc Game access device
JP4738458B2 (ja) * 2008-08-25 2011-08-03 株式会社 エニイワイヤ 制御・監視信号伝送システム

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JPH09275402A (ja) * 1996-04-04 1997-10-21 Sony Corp 通信制御システムおよび通信制御装置並びにデータ送受信装置および通信制御方法
US5945631A (en) * 1996-09-16 1999-08-31 Sony Corporation IEEE 1394 active wall disconnect and aircraft qualified cable
US6378000B1 (en) * 1999-04-29 2002-04-23 Mitsubish Electric Research Laboratories, Inc Address mapping in home entertainment network
US6633547B1 (en) * 1999-04-29 2003-10-14 Mitsubishi Electric Research Laboratories, Inc. Command and control transfer
JP3444247B2 (ja) * 1999-09-29 2003-09-08 日本電気株式会社 パケット速度変換器
DE69940781D1 (de) * 1999-12-30 2009-06-04 Sony Deutschland Gmbh Schnittstellenverbindungsschicht- Einrichtung zum Aufbau eines verteilten Netzwerks
US7002928B1 (en) * 2000-06-21 2006-02-21 Sony Corporation IEEE 1394-based protocol repeater
EP1199840A1 (fr) * 2000-10-19 2002-04-24 THOMSON multimedia Méthode pour connecter, via une liaison sans fil, un appareil éloigné de type IEEE1394 à un groupe d'appareils de type IEEE1394
JP3683227B2 (ja) * 2002-03-28 2005-08-17 日本電気エンジニアリング株式会社 ローカルバスブリッジ
US7451359B1 (en) * 2002-11-27 2008-11-11 Oracle International Corp. Heartbeat mechanism for cluster systems

Non-Patent Citations (1)

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Title
See references of WO2006069859A1 *

Also Published As

Publication number Publication date
DE102004062034A1 (de) 2006-07-13
WO2006069859A1 (fr) 2006-07-06
JP2008526061A (ja) 2008-07-17
US20080101383A1 (en) 2008-05-01

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