WO2001013620A2 - Verfahren zum verwalten der von einem kommunikationsnetz über eine leitung zu einer netzabschlusseinrichtung übertragbaren energie - Google Patents
Verfahren zum verwalten der von einem kommunikationsnetz über eine leitung zu einer netzabschlusseinrichtung übertragbaren energie Download PDFInfo
- Publication number
- WO2001013620A2 WO2001013620A2 PCT/DE2000/002629 DE0002629W WO0113620A2 WO 2001013620 A2 WO2001013620 A2 WO 2001013620A2 DE 0002629 W DE0002629 W DE 0002629W WO 0113620 A2 WO0113620 A2 WO 0113620A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- line
- energy
- network
- asl
- termination device
- 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
- H04Q11/0471—Terminal access circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1308—Power supply
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13092—Scanning of subscriber lines, monitoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13164—Traffic (registration, measurement,...)
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13202—Network termination [NT]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13349—Network management
Definitions
- communication terminal devices such as, for example, ISDN communication terminals are often connected to decentralized network components or network termination devices - also referred to in the technical field as NT (Network Termination).
- the network termination devices are connected via a line or connection line to a decentralized network component or a communication system and are supplied with energy in certain operating modes - for example in the event of a failure of the local power supply - via the connection lines or via separate lines.
- the energy transmitted via the connecting line is essentially determined by the voltage provided by the communication system - also referred to in the technical field as the supply voltage - and by the energy transmission properties - in particular the line resistance - of the connecting line.
- the line resistance essentially depends on the length of the connecting line and the type and diameter of the conductor of the connecting line. Since the level of the supply voltage is limited due to the electrical safety and the dielectric strength of the affected components of the communication system, the energy that can be transmitted via the connecting line is also limited for a given line resistance.
- the load resistance m of the network termination device corresponds to the line resistance, with only a very specific operating point being designated as the power adjustment.
- the power adjustment ie maximum feed range, can vary due to fluctuations in the power consumption of the network termination device. tion and tolerances of the supply voltage cannot be achieved. When mismatch, the amount of transmitted energy ge ⁇ is lower.
- the standard ETR 80, Nov. 1996, page 36 defines that in no operating case the maximum performance adjustment is achieved, i.e. the functionality of the network termination device - emergency power supply - is restricted. This means that in each case the dining range is greater than the maximum distance that can be bridged by transmission technology.
- a further possibility of briefly carrying out additional functions which exceed the permissible energy consumption of the respective network termination device is to collect energy in a suitably dimensioned capacitor and to provide this function for a short time after the relevant function has been activated - for example a call signal put.
- the underlying task of the invention is the fact hen to se ⁇ to improve the management of standing in a network termination at your disposal energy. The object is achieved by the features of patent claim 1.
- the essential aspect of the method according to the invention is that energy consumption is determined for the functions assigned to the decentralized network component, the energy transmission properties of the line are measured and the energy available in the decentralized network component is determined therefrom.
- the functions of the decentralized network component are activated depending on the energy available to them and the energy consumption of the respective function.
- a major advantage of the method according to the invention can be seen in the fact that operating states - for example activation of additional functions - which cause an energy consumption which is higher than the energy supplied via the connecting line, are recognized in good time, i.e. recognized before activation and can thus be avoided.
- the energy reserves defined, for example, in the case of ISDN network termination devices can be minimized and, if necessary, the required energy buffer memories or capacitors can be optimized.
- the stability of the system remains, i.e. the operation of the network termination devices and the communication system is unaffected.
- the energy transmission properties of the line are measured by a voltage difference measurement before and after a defined load is connected to the line in the decentralized network component or network termination device.
- the power transmission properties of the line are determined by a voltage difference Measuring m of the central network component is measured before and after turning a defined load to the line and the measurement results to the decentralized network component ü berffent, wherein said level difference measurement is controlled by the decentralized network component via the line.
- One advantage of the decentralized implementation is that no changes in the central network component, ie in the communication system, are required.
- a key advantage of the decentralized / central implementation is that the measurement of the energy transmission properties can be carried out centrally for several decentralized network components or network termination devices, as a result of which the implementation effort is considerably reduced.
- the defined load is advantageously realized by a defined load resistor
- the energy transmission properties of the line are advantageously measured during commissioning and / or when the central network component is activated
- the energy transmission properties of the line change only slightly over longer periods of time, the energy transmission properties of the line are measured primarily when the decentralized network component or a network termination device is started up. A measurement of the energy transmission properties of the line after each activation of a network termination device is in the case of significantly fluctuating energy transmission properties of the line, i.e. advantageous in a few cases.
- the energy consumption of the functions is determined by empirical measurements m of the decentralized network component. This determination is preferably carried out in the development phase of the respective one Network components or network termination devices and is stored in a memory during the manufacture of a decentralized network component.
- the memory is arranged, for example, in a control unit or a processor system of the decentralized network component.
- the functions often represent different configurations of network end components connected to the decentralized network component and / or performance features of the decentralized network component and / or the network end components - claim 7.
- the configurations of the network end components or communication end devices are represented or implemented, for example, by a wide variety of communication terminals with a wide variety of services - for example telephony, fax, ISDN, data.
- the configuration can also relate to the network termination device or the decentralized network component, for example the implementation of a wide variety of interfaces - telephone and ISDN data interface.
- the functions can also be implemented by different performance features - such as call forwarding, brokering etc. - in the network end components or communication terminals.
- FIG. 2 shows a central / decentralized implementation of the method according to the invention.
- FIG. 1 shows a network termination device NT, which is connected to a communication system KS (not shown) via a connecting line ASL.
- the communication system KS represents a central network component (ZN)
- the connection line ASL generally a line (L)
- the network termination device NT a decentralized network component (DN)
- the communication terminal KE a network end component (NE)
- the network termination device NT is supplied with energy E by the communication system KS.
- the energy E which can be transmitted via the connecting line ASL essentially depends on the supply voltage applied in the communication system KS, on the line resistance of the connecting line ASL and on the type of conductor - copper, aluminum - and the like
- the line resistance essentially represents the energy transfer properties of the ASL connection line.
- the two-wire connection line ASL is the network termination NT to a termination unit NT ⁇ and one
- Measuring unit ME connected. Furthermore, a conductor of the connection line ASL is connected via a load resistor RL to a connection element of a switch S and its second connection element is connected to the further conductor of the connection line ASL. With the help of switch S, a defined load LA - ie a defined load resistance RL - can also be connected to the connection line ASL.
- the switch S is controlled by the measuring unit ME - indicated in FIG. 1 by a dashed arrow. Both the measuring unit ME and the termination unit NT ⁇ are connected to a control device STE.
- the control unit STE which is usually implemented as a microprocessor system, realizes, in addition to the functions specific to the network termination device, the method according to the invention.
- the terminating unit NT x comprises the adaptation in terms of transmission technology to the connecting line ASL or an interface S. as well as the transparent transmission of the analog or digital information coming from the interface S to the connection line ASL and vice versa - if necessary, an analog / digital conversion is carried out. Furthermore, in the sense of controlling the network termination device NT by the communication system KS, special control signals m are added or recognized to the information flow to the communication system KS and passed on to the control unit STE.
- the interface S represents an ISDN basic connection interface SO, to which ISDN communication terminals KE (SO) can be connected - for example ISDN telephony devices or personal computers.
- the communication system KS supplies a supply voltage to the connecting line in the sense of transmitting energy to the network termination device NT - not shown.
- the network termination device NT it is checked whether the transmitted energy E or the current supply voltage US is sufficient to put the network termination device NT into operation.
- a DC-DC converter of the network termination device NT which generates the operating voltage is activated or put into operation.
- the network termination device NT can then be put into operation. According to the method according to the invention, the supply voltage US which is present on the connection line ASL is now included
- the control unit STE Measured using the measuring device ME and transmitted to the control unit STE as the measured value mw. After this first Measurement is closed with the help of the measuring unit ME and the control unit STE, the switch S, whereby the load resistor RL is connected to the connection line ASL. Now the supply voltage US is measured again and transmitted to the control unit STE as a further measured value mw. In the control unit STE, the energy E still available for functions F is determined on the basis of the two measured values mw, mw x and the defined load resistance RL. F is in the control unit STE for each function
- Functions F can be, for example, different interfaces S - telephone interface, data interface, I ⁇ DN interface - or else different performance features or services in the connected communication terminals KE such as telephone service or call forwarding.
- the energy consumption values EV for the respective functions are determined empirically in the development phase of the respective network termination device NT and are permanently stored during the manufacture of the network termination devices NT m of the control unit STE - in particular in a memory of the control unit STE.
- a memory can be a PROM, for example.
- a function F representing an ISDN interface SO is to be activated after the startup of the network termination device NT, it is determined on the basis of the energy still available and the respective stored energy consumption value EV whether the energy available is still only for the function to be activated F is sufficient. If the available energy E is sufficient, the activation of the function F is activated by the control unit STE.
- FIG. 2 also shows a network termination device NT and a communication system KS.
- the main difference from the configuration in FIG. 1 is that the measuring unit ME is arranged in the communication system KS, ie the line measurement is carried out in the communication system.
- the main advantage of the central arrangement of the measuring unit ME is that it can be used for several network termination devices NT connected to the communication system KS.
- the method according to the invention is carried out in the same way as described in FIG. 1, but the measurement of the measuring unit ME is initiated by control information sti transmitted by the control unit STE of the network termination device NTE via the connecting line ASL to the measuring unit ME.
- the measured values mw or mw x are determined after the respective measurement via the connection line ASL to the control unit SE.
- the further steps of the method according to the invention are carried out as described in FIG. 1.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00963880A EP1208695A2 (de) | 1999-08-12 | 2000-08-07 | Verfahren zum verwalten der von einem kommunikationsnetz über eine leitung zu einer netzabschlusseinrichtung übertragbaren energie |
IL14808600A IL148086A0 (en) | 1999-08-12 | 2000-08-07 | Method for managing the power which can be transmitted from a communications network to a network termination device via line |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19938123.2 | 1999-08-12 | ||
DE19938123A DE19938123C2 (de) | 1999-08-12 | 1999-08-12 | Verfahren zum Verwalten der von einer zentralen Netzwerkkomponente über eine Leitung zu einer dezentralen Netzwerkkomponente übertragenen Energie und Netzabschlußeinrichtung und Kommunikationsanordnung |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001013620A2 true WO2001013620A2 (de) | 2001-02-22 |
WO2001013620A3 WO2001013620A3 (de) | 2002-03-28 |
Family
ID=7918095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/002629 WO2001013620A2 (de) | 1999-08-12 | 2000-08-07 | Verfahren zum verwalten der von einem kommunikationsnetz über eine leitung zu einer netzabschlusseinrichtung übertragbaren energie |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1208695A2 (de) |
DE (1) | DE19938123C2 (de) |
IL (1) | IL148086A0 (de) |
WO (1) | WO2001013620A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001084820A2 (en) * | 2000-04-29 | 2001-11-08 | Marconi Communications Limited | Power management for line-powered telecommunication equipments |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006034422A1 (de) | 2006-07-25 | 2008-01-31 | Siemens Home And Office Communication Devices Gmbh & Co. Kg | Verfahren zum Verwalten der von einer zentralen Netzwerkkomponente über eine Leitung übertragenen Energie zu einer dezentralen Netzwerkkomponente |
DE102012106995B3 (de) * | 2012-07-31 | 2014-01-30 | Fujitsu Technology Solutions Intellectual Property Gmbh | Elektronisches Gerät für Power-over-Ethernet und Verfahren |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0572872A2 (de) * | 1992-05-29 | 1993-12-08 | Alcatel SEL Aktiengesellschaft | Schaltungsanordnung zur Reduzierung von Stromverbrauch eines Telekommunikationsendegerätes |
GB2281400A (en) * | 1993-08-20 | 1995-03-01 | Plessey Telecomm | Cable testing |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3204429A1 (de) * | 1982-02-09 | 1983-10-06 | Siemens Ag | Schaltungsanordnung zur geregelten spannungsversorgung von ferngespeisten endeinrichtungen in fernmelde-insbesondere fernsprechanlagen |
-
1999
- 1999-08-12 DE DE19938123A patent/DE19938123C2/de not_active Expired - Fee Related
-
2000
- 2000-08-07 WO PCT/DE2000/002629 patent/WO2001013620A2/de not_active Application Discontinuation
- 2000-08-07 EP EP00963880A patent/EP1208695A2/de not_active Withdrawn
- 2000-08-07 IL IL14808600A patent/IL148086A0/xx unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0572872A2 (de) * | 1992-05-29 | 1993-12-08 | Alcatel SEL Aktiengesellschaft | Schaltungsanordnung zur Reduzierung von Stromverbrauch eines Telekommunikationsendegerätes |
GB2281400A (en) * | 1993-08-20 | 1995-03-01 | Plessey Telecomm | Cable testing |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001084820A2 (en) * | 2000-04-29 | 2001-11-08 | Marconi Communications Limited | Power management for line-powered telecommunication equipments |
WO2001084820A3 (en) * | 2000-04-29 | 2002-11-14 | Marconi Comm Ltd | Power management for line-powered telecommunication equipments |
Also Published As
Publication number | Publication date |
---|---|
WO2001013620A3 (de) | 2002-03-28 |
IL148086A0 (en) | 2002-09-12 |
DE19938123C2 (de) | 2002-03-14 |
EP1208695A2 (de) | 2002-05-29 |
DE19938123A1 (de) | 2001-03-22 |
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