EP1097605A2 - Procede et circuit pour creer des liaisons de signaux de donnees - Google Patents

Procede et circuit pour creer des liaisons de signaux de donnees

Info

Publication number
EP1097605A2
EP1097605A2 EP99942736A EP99942736A EP1097605A2 EP 1097605 A2 EP1097605 A2 EP 1097605A2 EP 99942736 A EP99942736 A EP 99942736A EP 99942736 A EP99942736 A EP 99942736A EP 1097605 A2 EP1097605 A2 EP 1097605A2
Authority
EP
European Patent Office
Prior art keywords
circuit
switching device
connections
data signal
traffic load
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Withdrawn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
EP99942736A
Other languages
German (de)
English (en)
Inventor
Cornel Klein
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.)
Siemens AG
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP1097605A2 publication Critical patent/EP1097605A2/fr
Withdrawn legal-status Critical Current

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
    • H04M11/068—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using time division multiplex techniques
    • 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
    • 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
    • H04L12/2863—Arrangements for combining access network resources elements, e.g. channel bonding
    • H04L12/2865—Logical combinations
    • 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
    • H04L12/287—Remote access server, e.g. BRAS
    • H04L12/2872—Termination of subscriber connections
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0062—Provisions for network management
    • H04Q3/0066—Bandwidth allocation or management

Definitions

  • the invention relates to a method and a circuit arrangement for establishing data signal connections between data terminals connected to a circuit-switched switching device, in particular computers or PCs, or between these data terminals and a separate data network, in particular the one, connected to the circuit-switched switching device via one or more connection nodes Internet data network.
  • a circuit-switched switching device is understood here to mean a switching device which is appropriately designed for carrying out line switching processes.
  • a transmission capacity of up to 56 kbit / s and a transmission rate of up to 64 kbit / s per connection are usually available in analog circuit-switched networks and in digital circuit-switched networks.
  • the protocol used for data signal transmission is usually the so-called point-to-point protocol (PPP - Point-to-Point Protocol - RFC 1661).
  • the invention is therefore based on the object of showing a way of proceeding in a method of the type mentioned at the outset in order to provide the respectively optimal transmission capacity for the data signal connections to be established without the network infrastructure having to be dimensioned from the requirements given for normal connections is.
  • the object outlined above is achieved according to the invention in a method of the type mentioned at the outset in that, in the presence of a traffic load below a first traffic load threshold VI in the circuit-switched switching device or in the network containing it, the data signal connections to be established in this switching device is an addition to that for normal communications (for telephony, facsimile, narrowband or X.25 communications) additional transmission capacity available in this switching facility is provided that additional transmission capacity is provided in the event that the above-mentioned first traffic load Threshold VI due to the traffic load concerned, the data signal connections then to be established are only provided with the transmission capacity available for normal connections, and that only after falling below a second traffic load threshold V2, which may correspond to the first traffic load threshold VI, does the data signal connections to be established again in addition to the data traffic connections to be established additional transmission capacity is provided for the respective transmission capacity available for normal connections.
  • a second traffic load threshold V2 which may correspond to the first traffic load threshold VI
  • the invention has the advantage that the transmission capacity available in the circuit-switched switching device can be used for data signal connections in a relatively simple manner, this utilization being geared to the respective traffic load of the switching device in question.
  • the transmission capacity of the circuit-switched switching device is thus optimal, that is to say is more usable than before.
  • data applications are generally not sensitive to fluctuations or changes in the transmission capacity.
  • the method according to the invention can also be used in an advantageous manner if the first traffic load threshold VI is set to infinity.
  • An additional transmission capacity can be provided relatively quickly for data signal connections after it has been taken from existing data signal connections. If the third traffic load threshold V3 is even below the second traffic load threshold V2, there is the advantage of a purely precautionary withdrawal of additional transmission capacity that was previously provided.
  • Data signal connections made available additional transmission capacity are preferably withdrawn taking into account the respective connection duration and / or the subscriber data of the data terminals involved in the respective data signal connection.
  • the respective additional transmission capacity can advantageously be withdrawn according to previously defined criteria, such as after a certain period of time, even without taking into account the traffic load.
  • a circuit arrangement is preferably used to carry out the method according to the invention, which is characterized in that an evaluation and control device is connected to the circuit-switched switching device, which on the input side of the circuit-switched switching device provides information about the provision of additional transmission capacity for new data signal connections in the relevant one Switching device or between the latter and the separate data network and load information about the respective traffic load of the switching device in question or the network containing it, and which is connected on the output side to a control device serving to control the connection of the switching device in question and to this only when a specified one is exceeded first traffic load threshold VI emits a control signal by said traffic load, to which he then Only the transmission capacity available for normal connections is made available for the data signal connections to be provided, and it only emits such a control signal upon falling below a second traffic load threshold V2, which may possibly correspond to the first traffic load threshold VI, that the data signal connections to be established are then established again an additional transmission capacity in addition to the respective transmission capacity available for normal connections is to be provided.
  • first traffic load threshold VI emit
  • This circuit arrangement is distinguished by an overall relatively small circuit structure, which is required in the evaluation and control device mentioned, in order to use to transmit control signals to the respective traffic load to the control device controlling the switching device, which then enables or prevents the provision of additional transmission capacity for the data signal connections to be established in each case.
  • the network mentioned above includes not only the switching facility mentioned and possibly the data network, but also other power supply units that are suitable for data signal connections, such as the connection nodes connected to the data network and individual ones Connection routes.
  • the evaluation and control device expediently inputs the return to the control device serving to control the connection of the switching device when a traffic load in the circuit-switched switching device exceeds a third traffic load threshold V3 either above or between or below the first and second traffic load thresholds VI, V2. would decrease additional transmission capacitances provided by existing data signal connections from at least some of the control signal causing these data signal connections.
  • This has the advantage of a particularly low outlay in terms of circuitry in order to provide the normal connections with the otherwise possibly lacking transmission capacity even with increasing traffic load in the circuit-switched switching device.
  • a memory device (table) is advantageously contained in the evaluation and control device, in which information about the data signal connections is recorded, to which additional transmission capacities have been made available in the circuit-switched switching device, and whose information is given when the additional transmission capacity is withdrawn Switching device can be used for the data signal connections in question.
  • This has the advantage that with a total of particularly low circuit complexity, the necessary withdrawal of additional transmission capacities can be effected without extensive intervention in the control device of the circuit-switched switching device being necessary.
  • a selection device is preferably contained in the evaluation and control device, from which control signals serving to take back additional transmission capacity in the circuit-switched switching device can be emitted according to defined criteria (connection duration, subscriber data). This results in the advantage of a relatively low outlay on circuitry in order to be able to take back additional transmission capacities in accordance with predetermined criteria.
  • the evaluation and control device is expediently integrated in the control device controlling the circuit-switched switching device. This has the advantage of an overall particularly low outlay in terms of circuitry for realizing the circuit arrangement according to the invention.
  • a circuit-switched switching device LV is indicated schematically, as it is commercially used, for example, under the name "EWSD system” and described in various publications. However, other circuit-switched switching devices can also be used.
  • the switching facility LV can belong to a circuit-switched network comprising a plurality of corresponding switching facilities.
  • the circuit-switched switching device LV shown schematically in the drawing has one in the present case Row of digital subscriber line units DLU1 to DLUn, which are connected to a switching network SN via line connection groups LTG1 to LTGn.
  • the digital subscriber line units DLU1 to DLUn are connected to the line line groups LTG1 to LTGn several times, in such a way that each of the digital subscriber line units DLU1 to DLUn is connected to each of the line line groups LTG1 to LTGn.
  • the circuit-switched switching device LV is also connected to a control device, which here consist of two partial control devices COP and CCN.
  • the partial control device COP is a so-called coordination processor, which is used for the actual connection control within the circuit-switched switching device LV.
  • This coordination processor COP works together with the other partial control device CCN, a signaling network control device, which is used to process the signaling characters via a central signaling channel.
  • the process sequences associated therewith within the circuit-switched switching device LV considered so far have already been described in various other places and are therefore not to be considered further here.
  • Subscriber stations SUB1 to SUBn are connected to the circuit-switched switching center LV, which in the present case are digital subscriber stations.
  • the subscriber station SUB1 contains, for example, a digital telephone or telephone terminal TE, a facsimile terminal FX and a PC or a home computer PCI with a central unit, monitor and keyboard. These devices are connected to the digital subscriber line unit DLU1 via a network termination device NT1, specifically via two B channels and one D channel.
  • the B channels that are used for the transmission of message signals each have a transmission capacity of 64 kbit / s, and the D channel that Serves signaling purposes, has a transmission capacity of 16 kbit / s.
  • the subscriber station SUBn still shown in the drawing is formed, for example, by a single computer or PC or home computer PBn also with a central unit, monitor and keyboard, which via a network termination device Ntn with its associated digital subscriber line unit DLUn via two B channels and one D channel connected is.
  • a data network NET is connected to the circuit-switched switching device LV considered above or to a circuit-switched network containing this switching device via an access device AP called a connection node.
  • the data network in question can be, for example, the Internet data network to which a multiplicity of computers is connected, to which access from the data terminals PCI to PCn connected to the circuit-switched switching device LV is desired. This will be discussed in more detail below.
  • the circuit arrangement shown in the drawing also includes an evaluation and control device PP, the basic structure of which is indicated and which is used to control the connection of the switching device LV
  • Control device more specifically connected to the coordination processor COP and in this and / or can be integrated in the associated signaling network control device CCN.
  • the evaluation and control device PP is connected to the coordination processor COP of the circuit-switched switching device LV via three lines CON, MON and DIS, wherein each of these lines can be designed as a bus line with a large number of individual lines.
  • the evaluation and control device PP receives information from the coordination processor COP about the establishment of new data signal connections, to which an additional transmission capacity has been made available in addition to the transmission capacity available for normal connections.
  • the relevant information includes information regarding the relevant data signal connections or the associated data terminals. This information is supplied via an OR circuit represented by an OR gate OG1 to the input side of a memory or a table TAB in order to be recorded there.
  • the evaluation and control device PP is connected to the coordination processor COP via the line labeled MON, a monitoring line, in order to use this line to obtain information about the respective traffic load on the circuit-switched switching device LV or the network containing it, and possibly further structured information , e.g. to get across individual routes.
  • This traffic load information is evaluated in a threshold circuit TC in the evaluation and control device PP on the basis of first, second and third threshold values, whereupon control signals from outputs AI, A2 or A3 of the outputs which are adapted to the respective conditions
  • Threshold circuit TC are given. These control signals are represented by an OR gate OG2 OR circuit to the line labeled DIS and via this to the coordination processor COP, which will become apparent as follows, then controls appropriate measures in the circuit-switched switching device LV or in the network containing it.
  • the relevant control signals are optionally delivered with the information contained in the table TAB via an AND gate UG and the aforementioned OR circuit to the line DIS mentioned, under the control of a selection circuit SC, the input side with the output side of the Table TAB and the output A3 of the threshold circuit TC is connected and the output side is connected to the input side of the table TAB via the OR circuit represented by the OR gate OG1.
  • connection class signal is preferably emitted from the respective data terminal during the establishment of the relevant data signal connections and can be evaluated in the control device (s) COP, CCN.
  • network access is conceivable that allows a dynamic change in the transmission capacity of a transmission channel to be carried out.
  • the data signal connections, to which an additional transmission capacity is provided in addition to the transmission capacity for normal connections, are recorded in the table TAB of the evaluation and control device PP.
  • the threshold circuit TC in the evaluation and control device PP determines this and outputs its output AI via the OR represented by the OR gate OG2 -Switch off a corresponding control signal via the DIS line to the coordination processor COP.
  • additional transmission capacities are no longer made available to new data signal connections to be established. Such transmission capacities are namely now for normal connections (for telephone subscriber stations or facsimile end devices or for Narrowband or X.25 connections) reserved. However, the additional transmission capacities previously provided for data signal connections are still retained for these connections.
  • the results in the evaluation and control device PP contain threshold circuit TC a corresponding control signal from the output A2 via the OR circuit represented by the OR gate OG2 to the line DIS and via this to the coordination processor COP, which in turn creates new data signal connections in addition to the transmission capacity available for normal connections each provides an additional transmission capacity.
  • a third traffic load threshold V3 which is either above the first and second traffic load thresholds VI and V2 or between or even below these traffic load thresholds VI, V2, then run in addition to that if the first traffic load threshold measure is exceeded, the following operations take place.
  • Threshold circuit TC outputs a control signal from its output A3 to the AND gate UG contained in the relevant device and to the selection circuit SC, which thereby controls the table TAB via the OR circuit represented by the OR gate OG1.
  • This table TAB then gives information about the data signal connection (s) via the AND gate UG and the information provided by the OR Link OG2 represents the OR circuit to the DIS line and via this to the coordination processor COP, from which additional transmission capacities are to be withdrawn that have previously been made available to these data signal connections.
  • the selection circuit SC provided in the evaluation and control device PP selects the data signal connections to be reduced with regard to the additional transmission capacities according to defined criteria, such as connection duration and other subscriber data, in front. For this purpose, the selection circuit SC previously took relevant information from the table TAB with respect to the individual connections.
  • the measures described above thus include the transmission capacity of the circuit-switched switching device LV or of this switching device. tendency network in an optimal manner for data signal connections between the data terminals connected to this switching device or this network and a separate data network connected to it, such as the Internet data network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un procédé et un circuit pour créer des liaisons de signaux de données entre des terminaux de données (PC1 à PCn) raccordés à un commutateur à commutation de circuit (LV) ou entre ces terminaux de données et un réseau de données (NET), notamment le réseau de données Internet, relié au commutateur (LV). L'invention vise à optimiser l'utilisation de la capacité de transmission disponible à chaque fois, lorsque le volume de trafic du commutateur (LV) est inférieur à un premier seuil (V1). A cet effet, il est prévu de mettre à disposition, en plus de la capacité de transmission disponible pour des liaisons normales, une capacité de transmission supplémentaire. Si le volume de trafic dépasse le premier seuil (V1), la capacité de transmission supplémentaire n'est pas mise à disposition pour des nouvelles liaisons de données. Si le volume de trafic reste inférieur à un deuxième seuil (V2) correspondant éventuellement au premier seuil (V1), la capacité de transmission supplémentaire est alors de nouveau mise à disposition pour de nouvelles liaisons de données. Si le volume de trafic dépasse un troisième seuil (V3) supérieur ou inférieur au premier et au deuxième seuil (V1, V2), ou compris entre le premier et le deuxième seuil, la capacité de transmission supplémentaire d'au moins quelques liaisons existantes est de nouveau mise à disposition en complément des mesures prises lors du dépassement du premier seuil (V1).
EP99942736A 1998-07-16 1999-07-01 Procede et circuit pour creer des liaisons de signaux de donnees Withdrawn EP1097605A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19832059 1998-07-16
DE19832059 1998-07-16
PCT/DE1999/001918 WO2000004692A2 (fr) 1998-07-16 1999-07-01 Procede et circuit pour creer des liaisons de signaux de donnees

Publications (1)

Publication Number Publication Date
EP1097605A2 true EP1097605A2 (fr) 2001-05-09

Family

ID=7874328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99942736A Withdrawn EP1097605A2 (fr) 1998-07-16 1999-07-01 Procede et circuit pour creer des liaisons de signaux de donnees

Country Status (6)

Country Link
US (1) US6741567B1 (fr)
EP (1) EP1097605A2 (fr)
CN (1) CN1139298C (fr)
AR (1) AR019395A1 (fr)
BR (1) BR9912121A (fr)
WO (1) WO2000004692A2 (fr)

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Publication number Priority date Publication date Assignee Title
DE10107516A1 (de) * 2001-02-09 2002-08-29 Teles Ag Verfahren und Vermittlungseinrichtung zur Bereitstellung von Verbindungen in einem Telekommunikations- und/oder Computernetzwerk
AU2003228411A1 (en) * 2002-03-29 2003-10-13 Network Genomics, Inc. Forward looking infrastructure re-provisioning
CN100373880C (zh) * 2004-09-24 2008-03-05 上海贝尔阿尔卡特股份有限公司 动态配置过滤数据库表的方法
CN1909523B (zh) * 2006-08-17 2012-05-02 华为技术有限公司 检测器、呼叫会话控制系统及检测呼叫信号的方法
US8385483B2 (en) 2008-11-11 2013-02-26 Isco International, Llc Self-adaptive digital RF bandpass and bandstop filter architecture
GB2499237A (en) 2012-02-10 2013-08-14 Ibm Managing a network connection for use by a plurality of application program processes
US8699339B2 (en) * 2012-02-17 2014-04-15 Apple Inc. Reducing interarrival delays in network traffic
US20220317898A1 (en) * 2021-04-03 2022-10-06 EMC IP Holding Company LLC Managing Application Storage Resource Allocations Based on Application Specific Storage Policies

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US5251209A (en) * 1991-03-28 1993-10-05 Sprint International Communications Corp. Prioritizing attributes in integrated services networks
US5463629A (en) * 1992-07-13 1995-10-31 Ko; Cheng-Hsu Dynamic channel allocation method and system for integrated services digital network
US5706279A (en) * 1995-03-24 1998-01-06 U S West Technologies, Inc. Methods and systems for managing packet flow into a fast packet switching network
US5623492A (en) * 1995-03-24 1997-04-22 U S West Technologies, Inc. Methods and systems for managing bandwidth resources in a fast packet switching network
US5673253A (en) * 1996-02-29 1997-09-30 Siemens Business Communication Systems Dynamic allocation of telecommunications resources
DE69727660T2 (de) * 1996-03-18 2004-12-23 General Instrument Corporation Dynamische zuordnung der bandbreite für ein kommunikationsmetz
US6272110B1 (en) * 1997-10-10 2001-08-07 Nortel Networks Limited Method and apparatus for managing at least part of a communications network

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Also Published As

Publication number Publication date
CN1139298C (zh) 2004-02-18
CN1318270A (zh) 2001-10-17
WO2000004692A2 (fr) 2000-01-27
BR9912121A (pt) 2001-04-10
AR019395A1 (es) 2002-02-20
WO2000004692A3 (fr) 2000-04-20
US6741567B1 (en) 2004-05-25

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