WO2016096583A2 - Procédé permettant d'alimenter une unité de point de distribution, unité de point de distribution, support de stockage de programme et programme informatique - Google Patents

Procédé permettant d'alimenter une unité de point de distribution, unité de point de distribution, support de stockage de programme et programme informatique Download PDF

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Publication number
WO2016096583A2
WO2016096583A2 PCT/EP2015/079186 EP2015079186W WO2016096583A2 WO 2016096583 A2 WO2016096583 A2 WO 2016096583A2 EP 2015079186 W EP2015079186 W EP 2015079186W WO 2016096583 A2 WO2016096583 A2 WO 2016096583A2
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WO
WIPO (PCT)
Prior art keywords
dpu
power
cpe
cpe device
popt
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.)
Ceased
Application number
PCT/EP2015/079186
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English (en)
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WO2016096583A3 (fr
Inventor
Massimo Cuzzola
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.)
Thomson Licensing SAS
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Thomson Licensing SAS
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Filing date
Publication date
Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of WO2016096583A2 publication Critical patent/WO2016096583A2/fr
Publication of WO2016096583A3 publication Critical patent/WO2016096583A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/462—Testing group delay or phase shift, e.g. timing jitter
    • H04B3/466—Testing attenuation in combination with at least one of group delay and phase shift
    • 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
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the disclosure relates to the field of customer premises equipment devices being coupled via a digital subscriber line to a service provider delivering broadband services to a customer.
  • Residential gateways are widely used to connect devices in a home of a customer to the Internet or any other wide area network (WAN) .
  • Residential gateways use for example digital subscriber line (DSL) technology that enables a high data rate transmission over copper lines.
  • DSL digital subscriber line
  • ADSL digital subscriber line
  • VDSL VDSL
  • VDSL2 VDSL2
  • Network operators e.g. Internet service providers (ISP) are managing a large amount, up to millions, of residential gateways, and also other devices such as routers, switches, telephones and set-top boxes, which are understood in this context as customer premises equipment (CPE) devices.
  • ISP Internet service providers
  • CPE customer premises equipment
  • FTTdp fiber to the distribution point
  • the fiber optic connection of the service providers closer to the home of the customer.
  • the last few 100 meters of the broadband connection are still handled by the existing copper wire to the home (currently used for legacy technologies such as PSTN and xDSL) .
  • Figure 1 shows the migration from copper links to fiber links closer to the home.
  • a Distribution Point Unit DPU
  • CO Central Office
  • Figure 1 shows the migration from copper links to fiber links closer to the home.
  • DPU Distribution Point Unit
  • CO Central Office
  • the DPU is powered by the CPE, or a separate power injector located at the customer's premises. This enables a flexible placement of the DPU and allows for multiple subscribers to provide power for a DPU.
  • US 8,601,289 Bl discloses an optical communications system including a plurality of CPE devices, each having a reverse power supply circuit and each being connected to a wire pair and configured to transmit and receive data and provide reverse power over the wire pair.
  • management circuit is connected to each of the
  • a method for powering a distribution point unit by at least one customer premises equipment (CPE) device comprises: a first CPE device providing power (Pmax) for powering the DPU, the CPE device delivering said power via a copper line to the DPU, the DPU starting operation, and the DPU
  • the DPU determines the optimal power output (Popt) for the first CPE device. If Popt > Pmax, then the DPU makes the power allocation for that copper line temporarily permanent. The DPU checks available power from further copper lines, and the DPU selects a second available active CPE device for powering the DPU, The DPU determines Popt for the second CPE device, and if the delivered power from the first and the second CPE device is above an operating power of the DPU, then the DPU redistributes the power between the two CPE devices.
  • Popt optimal power output
  • the DPU selects one active CPE device after the other for powering the DPU, the DPU determines Popt for each further CPE device, and the DPU redistributes the power from all active CPE devices, to obtain from the CPE devices its operating power.
  • the DPU uses a water filling algorithm for distributing the power between the CPE devices, and each CPE device provides a maximum power for powering the DPU, when starting operation.
  • the DPU determines Popt for each CPE device being connected to the DPU and stores Popt in a smart grid table. The DPU determines Popt for each CPE device by using a Dual Ended Line Test and/or a Single Ended Line Test.
  • the DPU selects the maximum possible available power as delivered by the further copper line, the DPU assignes temporarily the maximum possible available power for the further copper line, and determining Popt for the further CPE device by looking at the smart grid table. If the Popt is larger than the maximum possible available power, then the DPU makes the temporarily assigned power permanent for the further CPE device, removes the further copper line from the list of active lines, and continues with another active copper line. If Popt from the further copper line is smaller than the maximum possible available power, then the DPU redistributes the excessive power as provided by the further CPE device between a11 active CPE devices by using the water filling algorithm, and continues with another active copper line.
  • Each CPE device is designed in particular for an operation with the DPU in accordance with a G.fast standard.
  • a DPU comprises a processor and a memory for performing the method.
  • a non-transitory program storage medium being readable by a computer, comprises executable program code for
  • Fig. 1 a migration of broadband services from copper links to fiber links closer to the home
  • Fig. 2 a distribution point unit being adapted to
  • Fig. 3 a method for powering the distribution point unit of figure 2.
  • the CPE device includes in a preferred embodiment at least a controller, e.g. a microprocessor, a memory, in which an operating system is stored for the operation of the CPE device, a CPE power supply for powering the CPE device and the DPU, and a port for a broadband xDSL connection, in particular for a G.fast DSL connection.
  • a controller e.g. a microprocessor, a memory, in which an operating system is stored for the operation of the CPE device, a CPE power supply for powering the CPE device and the DPU, and a port for a broadband xDSL connection, in particular for a G.fast DSL connection.
  • a CPE device of this kind is for example an access gateway, a residential gateway, a business gateway, a router or an Internet switch .
  • the DPU includes in a preferred embodiment at least a controller, e.g. a microprocessor, a memory, in which an operating system is stored for the operation of the DPU, a DPU power supply receiving energy from a CPE device and powering the DPU, a port for an optical fiber connection, e.g. for a connection with a central office, and ports for a broadband xDSL connection, in particular for a G.fast DSL connection.
  • a controller e.g. a microprocessor
  • a memory in which an operating system is stored for the operation of the DPU
  • a DPU power supply receiving energy from a CPE device and powering the DPU
  • a port for an optical fiber connection e.g. for a connection with a central office
  • ports for a broadband xDSL connection in particular for a G.fast DSL connection.
  • a DPU 1, being connected via a fiber optical line with a central office 2 and being connected with n CPE devices Ci, i 1 - n, is schematically illustrated in figure 2.
  • the value "n” represents the maximum number of CPE devices that the DPU 1 supports.
  • Each copper line of the DPU is connected with a power extractor for receiving power from a CPE device.
  • DPU power supply is present on the DPU to merge the power extracted from each line and to convert it into proper voltage levels.
  • a reverse power management system coordinates the power functions over all active lines within the DPU.
  • the DPU 1 it is possible for the DPU 1 to estimate the power loss for each copper line of each active CPE device. Because figure 2 depicts a multiuser environment, DSL vectoring is a mandatory requirement for FTTdp and the G.fast operation. Therefore, the number of active CPE devices m can be estimated by the DPU by looking at a crosstalk transfer function being used for the G.fast transmission. By exchanging all these information between the active CPE devices and the DPU 1 using the power management protocol, it is possible to build a smart grid table that identifies for each active CPE device the maximum amount of power, taking also into account the power loss due to cable type and distance, that can be delivered on that line.
  • This smart grid table is basically a "n x m" matrix with P n;m matrix elements, in which each diagonal element represents the case when there is only one single CPE device active and in that case the element P n , m is equal to the total operating power needed to power the DPU, P tot , while each of the non-diagonal elements needs to be
  • the active CPE devices are handled in a Round-Robin fashion: when the first CPE device becomes active, all the power budget is allocated to that CPE device. Since all the power is allocated to a single CPE device, the total power needed from that CPE device reduces when another line becomes active.
  • a dedicated message is used between the DPU and the CPE devices to exchange power consumption information, actual available power budget, and guaranteed available total power.
  • a preferred method for powering the DPU 1 by at least one CPE device Cm is illustrated in more detail as a flowchart in figure 3.
  • a first CPE device for example CPE device CI
  • CPE device CI provides a power Pmax via the copper line LI to the DPU 1, for powering the DPU 1.
  • the power Pmax from the single CPE device CI is sufficient for starting the operation of the DPU 1.
  • the power Pmax be larger than the power Ptot as required by the DPU 1
  • the power Pmax as received from the CPE device CI is reduced to the power Ptot by using the power management protocol .
  • the DPU 1 looks for a further active copper line, step S10. In case an active copper line is detected, e.g.
  • the maximum possible available power Pmax as provided by the copper line L2 is selected, step S12.
  • the power Pmax as delivered by the CPE device C2 is then assigned temporarily for the copper line L2, S14.
  • the optimum power Popt for the CPE device C2 is determined by looking at the smart grid table, S16. Is the power Popt larger than the power Pmax, S18, then the temporarily assigned power Pmax for the CPE device C2 is made permanent, S20, and the copper line L2 is removed from the list of active copper lines, S22.
  • the method continues then by looking for a further active copper line, S24, and returns to step S12, if a further copper line is available not being optimized yet.
  • step 24 returns to step S12, if a further copper line is available not being optimized yet, or, if the list of active, not optimized copper lines is empty, S28, returns to step S10 and begins with the procedure from the beginning.
  • the DPU 1 selects the maximum possible available power Pmax as delivered by the copper line Lm.
  • the power Pmax from the CPE device Cm is then assigned temporarily for the copper line Lm, S14.
  • the optimum power Popt for the CPE device Cm is determined by looking at the smart grid table, S16. Is the power Popt larger than the power Pmax, S18, then the temporarily assigned power Pmax for the CPE device Cm is made permanent, S20, and the copper line Lm is removed from the list of active lines, S22.
  • the method continues then by looking for a further active copper line, S24, and returns to step S12, if a further copper line is available not being optimized yet.
  • step 24 the method continues then with step 24, and returns to step S12, if a further copper line is available not being optimized yet, or, if the list of active, not optimized copper lines is empty,
  • step S28 returns to step S10 and begins with the procedure from the beginning.
  • step S28 the power from all active CPE devices is distributed in an optimized manner according to the water filling algorithm.
  • the method as described with regard to figure 3 defines therefore an algorithm that allows the DPU 1 to work with any number m of active CPE devices, at any point in time, even with a single CPE device.
  • the reverse power management system of the DPU makes sure to have a fair distribution of power over all active CPE devices even in case of different lengths of the copper lines, by also considering the actual power state and DPU load of each copper line.
  • the power management protocol also ensures that the total power dissipation remains within the thermal limits of the passive cooling imposed by the DPU form factor and the environmental conditions, in which the DPU is deployed, buried or aerial, and therefore, the DPU power consumption scales with the number of active copper lines .
  • other embodiments may be utilized by one skilled in the art without departing from the scope of the present disclosure.
  • the method for powering the DPU is in

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Power Sources (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

L'invention concerne un procédé permettant d'alimenter une unité de point de distribution (DPU) par au moins un dispositif d'équipement des locaux d'abonné (CPE) qui comprend les étapes suivantes : un premier dispositif CPE fournit de la puissance (Pmax) pour alimenter la DPU (S10), le dispositif CPE délivre ladite puissance par l'intermédiaire d'une ligne de cuivre à la DPU, la DPU démarre l'opération, la DPU détermine la sortie de puissance optimale (Popt) pour le premier dispositif CPE (S16), si Popt > Pmax, alors la DPU rend l'attribution de puissance à cette ligne de cuivre permanente temporairement (S18, S20), la DPU vérifie la puissance disponible provenant de lignes de cuivre supplémentaires (S24), la DPU sélectionne un second dispositif CPE actif pour alimenter la DPU, la DPU détermine la Popt pour le second dispositif CPE (S16), et si la puissance fournie à partir du premier et du deuxième dispositif CPE est au-dessus d'une puissance de fonctionnement de la DPU, la DPU redistribue la puissance entre les deux dispositifs CPE (S26).
PCT/EP2015/079186 2014-12-18 2015-12-10 Procédé permettant d'alimenter une unité de point de distribution, unité de point de distribution, support de stockage de programme et programme informatique Ceased WO2016096583A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP14307080.3 2014-12-18
EP14307080 2014-12-18
EP15305856 2015-06-05
EP15305856.5 2015-06-05

Publications (2)

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WO2016096583A2 true WO2016096583A2 (fr) 2016-06-23
WO2016096583A3 WO2016096583A3 (fr) 2016-10-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019137720A1 (fr) * 2018-01-09 2019-07-18 British Telecommunications Public Limited Company Partage de puissance inverse
CN112019355A (zh) * 2019-05-29 2020-12-01 诺基亚通信公司 与向量化组合地反向/远程供电
US10951056B2 (en) 2018-03-07 2021-03-16 At&T Intellectual Property I, L.P. Systems and methods for intelligent power distribution

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8601289B1 (en) * 2011-02-21 2013-12-03 Adtran, Inc. Optical network unit with redundant reverse powering from customer premises equipment
EP3029881B1 (fr) * 2013-09-05 2018-03-07 Huawei Technologies Co., Ltd. Procédé de fourniture de puissance inverse, dispositif de fourniture de puissance inverse, et système

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019137720A1 (fr) * 2018-01-09 2019-07-18 British Telecommunications Public Limited Company Partage de puissance inverse
CN111788823A (zh) * 2018-01-09 2020-10-16 英国电讯有限公司 反向电力共享
US11265089B2 (en) 2018-01-09 2022-03-01 British Telecommunications Public Limited Company Reverse power sharing
US10951056B2 (en) 2018-03-07 2021-03-16 At&T Intellectual Property I, L.P. Systems and methods for intelligent power distribution
US11462935B2 (en) 2018-03-07 2022-10-04 At&T Intellectual Property I, L.P. Systems and methods for intelligent power distribution
US12160136B2 (en) 2018-03-07 2024-12-03 At&T Intellectual Property I, L.P. Systems and methods for intelligent power distribution
CN112019355A (zh) * 2019-05-29 2020-12-01 诺基亚通信公司 与向量化组合地反向/远程供电
EP3745603A1 (fr) * 2019-05-29 2020-12-02 Nokia Solutions and Networks Oy Alimentation inverse/à distance en combinaison avec la vectorisation
CN112019355B (zh) * 2019-05-29 2022-09-13 诺基亚通信公司 与向量化组合地反向/远程供电

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