EP1525716A1 - Systeme de communication pour la transmission d'informations entre plusieurs unites de communication decentralisees et au moins une unite de communication centrale - Google Patents

Systeme de communication pour la transmission d'informations entre plusieurs unites de communication decentralisees et au moins une unite de communication centrale

Info

Publication number
EP1525716A1
EP1525716A1 EP03787734A EP03787734A EP1525716A1 EP 1525716 A1 EP1525716 A1 EP 1525716A1 EP 03787734 A EP03787734 A EP 03787734A EP 03787734 A EP03787734 A EP 03787734A EP 1525716 A1 EP1525716 A1 EP 1525716A1
Authority
EP
European Patent Office
Prior art keywords
information
central
communication
point
zbg
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Withdrawn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
EP03787734A
Other languages
German (de)
English (en)
Inventor
Tim KÖPPE
Reinhard Rehberg
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.)
Nokia Solutions and Networks GmbH and Co KG
Original Assignee
Siemens AG
Nokia Siemens Networks GmbH and Co KG
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 Siemens AG, Nokia Siemens Networks GmbH and Co KG filed Critical Siemens AG
Publication of EP1525716A1 publication Critical patent/EP1525716A1/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Withdrawn legal-status Critical Current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]
    • H04L12/44—Star or tree networks

Definitions

  • Network devices or communication devices that can be used in current communication networks often have one or more central modules and several remote or decentralized modules. For the exchange of information between these modules within the communication device, a large number of transmission methods are known, which are matched to differently designed, physical transmission channels. Bus-oriented transmission methods are often used, such as the "broadcast method", the “polling method” or the “collision method” (e.g. Ethernet).
  • the information is transmitted from one module to a transmission medium shared by all the modules involved, the transmitted information being received almost simultaneously by all modules connected to the transmission medium.
  • each remote or decentralized module or communication unit is queried in a predetermined sequence, for example with the aid of a query telegram, for information to be transmitted, with a synchronization mechanism ensuring that the respective module has a specific time frame or time slot for sending the information to be transmitted to the shared transmission medium.
  • a disadvantage of this transmission method is that, due to the predetermined query sequence, assemblies are also queried that have neither to transmit nor to receive information. This will the transmission resources provided by the shared transmission medium are not used optimally.
  • the information to be transmitted is sent out randomly by the modules connected to the shared transmission medium, whereby it can happen that several modules simultaneously send information to the transmission medium, thereby causing conflicts when accessing the transmission medium , In such collisions, the transmission is repeated using a specially developed mechanism.
  • a disadvantage of the collision procedure cannot be guaranteed with unequivocal certainty that a message to be transmitted will also be received at the intended destination in the intended time interval.
  • circuit arrangements are known in which a central assembly or communication unit is connected to the respective decentralized assemblies via separate point-to-point connections.
  • a disadvantage of this arrangement variant is that a very high transmission rate must be provided for the interface arranged between the central and the decentralized modules or communication units, since the transmission capacity of the circuit arrangement for the worst case is independent of the actual presence of information or messages to be transmitted between the modules -Case designed, ie in the event that all decentralized modules connected to the central module want to transmit information towards the central module at the same time.
  • the object of the invention is to create a possibility for the exchange of information between central and decentralized assemblies, in which in particular the transmission resources provided for the exchange of information are optimally used.
  • the task is going out solved by a communication arrangement according to the preamble of claim 1 by the characterized features.
  • the information respectively sent from the decentralized communication unit to the at least one central communication unit each has an initial information indicating the beginning of the respectively transmitted information and an end the end information indicating the respectively transmitted information.
  • the essential advantage of the communication arrangement according to the invention is that the decentralized communication units are each connected via a point-to-point connection to a central storage device connected to the at least one central communication unit.
  • the central storage device is assigned control means which are designed in such a way that the initial information of the information transmitted by at least one of the decentralized communication units via the respective point-to-point connection is recognized.
  • the information subsequently arriving via the respective point-to-point connection is in each case stored in a memory area provided in the memory device.
  • the end information of the information arriving via the point-to-point connection is recognized, and after the end information has been recognized, the respectively stored information is read from the memory area and the read information is forwarded to the at least one central communication unit.
  • the main advantage of the communication arrangement according to the invention is that for the transmission of information starting from the decentralized communication units or assemblies in the direction of the at least one central communication unit, no shared transmission medium but a combination consisting of a logical bus structure and a point-to-point structure is used.
  • the logical bus structure can also be designed as a point-to-point connection.
  • a central storage unit or a central data storage device with associated control means or storage manager is connected between the decentralized and the at least one central communication unit.
  • the information to be transmitted from all decentralized communication units can be transmitted to this data memory or memory manager almost simultaneously or in parallel at any transmission speed via the point-to-point connections set up in each case.
  • the control means are advantageously designed such that the information arriving via the point-to-point connections set up in each case can also be received and processed or stored simultaneously or in parallel.
  • the stored information is then transmitted from this central data store to the central communication unit using any transmission method - for example a point-to-point connection with a defined transmission capacity.
  • the transmission method implemented between the central communication unit and the central storage device is advantageous regardless of the interface implemented between the central storage device and the decentralized communication units. This has the advantage that the transmission resources required for the transmission of information from the decentralized communication units in the direction of the central communication unit can be flexibly scaled or configured.
  • the communication arrangement according to the invention is explained in more detail below on the basis of a block diagram.
  • the block diagram shows a plurality of decentralized communication units DBGl ... n designed as separate modules, each of which is connected to a connection SA of a central memory device SP via an output DA and a connecting line VL representing a point-to-point connection.
  • storage means MEM configured as a central data store are provided, to which control means CONT - memory managers - are assigned.
  • the storage means MEM are connected via an input ME and a connection SA of the storage unit SP to a decentralized assembly DBGl .-. N.
  • the storage means MEM are connected via an output MA and via a connection SA of the storage device SP to an input ZE of a central communication unit ZBG designed as a central assembly.
  • the connection between the central communication unit ZBG and the central storage device SP can be realized by any transmission medium providing definable transmission resources or by means of any transmission method.
  • the elements or modules ZBG, DBGl ... n, SP shown in the block diagram are part of a network element KE that can be arranged in a communication network, for example part of a multiplexer unit DSLAM (Digital Subscriber Line Access Multiplexer).
  • DSLAM Digital Subscriber Line Access Multiplexer
  • the information infl ... n to be transmitted by a decentralized communication unit DBGl ... n each have start information representing the start of the information to be transmitted and end information representing the end of the information to be transmitted.
  • the combination of information to be transmitted in connection with the start and end information is referred to as a data telegram.
  • the data telegrams can be configured, for example, as an HDLC frame.
  • the data telegrams can also be configured in the form of data packets or data cells or data frames which are adapted in accordance with current transmission methods (for example Ethernet, TCP / IP, ATM). It is only decisive for the arrangement according to the invention that the individual data telegrams or data packets or data frames have significant information for recognizing the start and end of the respectively transmitted information.
  • the data telegrams infl ... n to be transmitted from the decentralized communication units DBGl ... n are transmitted to the central storage device SP via the respective connecting lines VL at any time - that is, if necessary at the same time. Since, according to the invention, no shared transmission medium is provided for the interface between the central storage device SP and the decentralized communication units DBGl ... n, each decentralized communication unit can transmit at any transmission rate if and only if a complete data telegram infl ... n is ready to be sent in the respective decentralized communication unit DBGl ... n. As a result, the data telegrams to be sent can also be transmitted simultaneously to the central storage unit SP at different transmission speeds.
  • the control means CONT assigned to the memory means MEM are designed in such a way that Both the start and the end information of the information transmitted via the connecting lines VL are recognized.
  • the control means CONT After recognizing an initial information, stores the information of the data telegram infl ... n subsequently arriving at the memory device SP without further influencing in a memory area of the memory means MEM provided for this purpose, the control means being designed such that almost simultaneously from The data telegrams infl ... n transmitted to the decentralized communication units DBGl ... n are stored in the respectively provided area of the memory means MEM until the respective end information is recognized.
  • n transmitted to the storage device SP are stored together with the recognized start and end information, read out and forwarded to the central communication unit ZBG. It should be noted that, according to an alternative embodiment variant, the transmitted information infl ... n can also be stored and forwarded in the central storage device SP without start and end information.
  • the associated now complete data telegram is read from the memory area and forwarded via the output SA from the central memory unit SP to the central communication unit ZBG.
  • the control means CONT assigned to the memory means MEM are designed in such a way that complete, complete data telegrams stored in the memory means MEM are recognized, read out and forwarded to the central communication unit ZBG.
  • the information transfer between the central assembly ZBG and the central storage device SP is independent of the interface set up between the central storage device and the decentralized communication units DBGl ... n.
  • the one between the central communication unit ZBG and the central storage unit SP arranged connection can also be designed as a point-to-point connection with a defined transmission capacity, this connection fulfilling the logical function of a data bus, via which all the information sent by the decentralized communication units DBGl ... n or data telegrams infl be transmitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

Pour la transmission d'informations en direction d'une unité de communication centrale, des unités de communication décentralisées (DBG1 n) sont chacune connectées via une liaison point-à-point (VL) à un dispositif mémoire central (SP) connecté à l'unité de communication centrale (ZBG). Des moyens de commande (CONT) associés au dispositif mémoire (SP) sont utilisés pour identifier des informations de début des informations (inf1 n) transmises via les liaisons point-à-point (VL) et pour mettre en mémoire les informations entrantes suivantes dans une zone (MEM) du dispositif mémoire (SP). Après détection de l'information de fin des informations entrantes suivantes (inf1 6), les informations mises en mémoire (inf1 6) sont extraites et transmises par le dispositif mémoire central (SP) à l'unité de communication centrale (ZBG). Les ressources de transmission placées entre l'unité de communication centrale (ZBG) et les unités de communication décentralisées (DBG1 n) sont avantageusement configurées de manière optimale et sont efficacement utilisées pour la transmission d'informations en direction de l'unité de communication centrale (ZBG).
EP03787734A 2002-07-30 2003-07-24 Systeme de communication pour la transmission d'informations entre plusieurs unites de communication decentralisees et au moins une unite de communication centrale Withdrawn EP1525716A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10234724 2002-07-30
DE10234724A DE10234724A1 (de) 2002-07-30 2002-07-30 Kommunikationsanordnung zur Übermittlung von Informationen zwischen mehreren dezentralen und zumindest einer zentralen Kommunikationseinheit
PCT/DE2003/002499 WO2004017567A1 (fr) 2002-07-30 2003-07-24 Systeme de communication pour la transmission d'informations entre plusieurs unites de communication decentralisees et au moins une unite de communication centrale

Publications (1)

Publication Number Publication Date
EP1525716A1 true EP1525716A1 (fr) 2005-04-27

Family

ID=30469203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03787734A Withdrawn EP1525716A1 (fr) 2002-07-30 2003-07-24 Systeme de communication pour la transmission d'informations entre plusieurs unites de communication decentralisees et au moins une unite de communication centrale

Country Status (5)

Country Link
US (1) US20060165101A1 (fr)
EP (1) EP1525716A1 (fr)
CN (1) CN1672367A (fr)
DE (1) DE10234724A1 (fr)
WO (1) WO2004017567A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8995921B2 (en) 2004-09-10 2015-03-31 Interdigital Technology Corporation Measurement support for a smart antenna in a wireless communication system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3484299D1 (de) * 1983-12-23 1991-04-25 Northern Telecom Ltd Multiplexer und demultiplexer fuer bitorientiertes datenuebertragungssteuerungsprotokoll.
CA2052500C (fr) * 1991-09-30 1995-09-19 Jozef Z. Babiarz Systeme de relais a canal commun pour pabx
DE19737528C2 (de) * 1997-08-28 2000-12-07 Cell Gmbh Q Verfahren und Vorrichtung zur Datenübertragung in Mobilfunksystemen
US6404861B1 (en) * 1999-10-25 2002-06-11 E-Cell Technologies DSL modem with management capability

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004017567A1 *

Also Published As

Publication number Publication date
US20060165101A1 (en) 2006-07-27
WO2004017567A1 (fr) 2004-02-26
DE10234724A1 (de) 2004-02-19
CN1672367A (zh) 2005-09-21

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