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GB2281458A - Apparatus for managing power supply to a telecommunications base station - Google Patents

Apparatus for managing power supply to a telecommunications base station Download PDF

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Publication number
GB2281458A
GB2281458A GB9317893A GB9317893A GB2281458A GB 2281458 A GB2281458 A GB 2281458A GB 9317893 A GB9317893 A GB 9317893A GB 9317893 A GB9317893 A GB 9317893A GB 2281458 A GB2281458 A GB 2281458A
Authority
GB
United Kingdom
Prior art keywords
power
transceivers
power supply
base station
supply units
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Withdrawn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
GB9317893A
Other versions
GB9317893D0 (en
Inventor
Martin W Greenwood
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 Oyj
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to GB9317893A priority Critical patent/GB2281458A/en
Publication of GB9317893D0 publication Critical patent/GB9317893D0/en
Publication of GB2281458A publication Critical patent/GB2281458A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for DC mains or DC distribution networks
    • H02J1/14—Balancing the load in a network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A base station of a cordless telephone system has three pairs of transceivers 26. Power to the transceivers 26 is provided by a parallel array of power supply units 12 which deliver power to the transceivers 26 through a power distribution unit 18. Individual power buses 20, 22, 24 supply power from the power distribution unit 18 to the transceivers 26 and to a station unit 28. If the output voltage from the power supply units 12 falls, the power distribution unit 18 progressively isolates the power buses in accordance with a predetermined power-shedding priority rating, to provide a progressive and organised reduction in capability under fault conditions. In an alternative arrangement having a single power bus (30), (Figure 2), internal power supply relays in each transceiver are controlled in accordance with the power-shedding priority rating. If the system is operating on battery power 16, following failure of the primary power source 10, low priority equipment is disconnected to conserve power. <IMAGE>

Description

Title: Power Supply Management This invention relates to apparatus for managing power supply to a base station, preferably a base transceiver station (BTS) in a cordless telephone system such as GSM (Groupe Systeme Mobile).
A BTS often contains multiple power supply units (PSU) and multiple transceivers (TRX). To achieve a high degree of reliability, it is usual to include redundant PSUs and TRXs. It has proved difficult in general to provide a design solution which can achieve optimum reliability and flexibility, for a given amount of hardware.
According to the invention apparatus for managing power supply to a base station having a plurality of transceivers comprises a plurality of power supply units connected in parallel, control means connected to the output of the power supply units and operative, upon a reduction in voltage from the power supply units, to disconnect the transceivers in a progressive manner in accordance with a predetermined power-shedding priority rating.
Preferably, the control means comprise a power distribution unit which supplies the transceivers on power buses to which the priority ratings are accorded.
Alternatively, the control means may comprise switches (such as relays) which control the supply of power to the transceivers and which are operative to disconnect the transceivers in accordance with the predetermined power shedding priority rating.
Hence, the control means are pre-programmed with the priority ratings of the transceivers. When the voltage supplied by the parallel connected power supply units falls below a predetermined threshold, the transceiver or transceivers having the lowest priority rating is or are disconnected. If the input voltage falls further, the transceiver or transceivers having the next lowest priority rating is or are disconnected, and so on.
Reconnection can be achieved when the input voltage is restored, the control means having the logic to implement this load shedding and load restoration procedure in accordance with the pre-programmed priority rating, which can be altered from time to time to suit differing priority ratings of the transceivers.
Two embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a block circuit diagram of the first embodiment, and Figure 2 is a block circuit diagram of the second embodiment.
Referring to Figure 1, an external supply 10 feeds three parallel-connected power supply units (PSU) 12 though a battery charger regulator 14 to which is connected a stand-by battery 16. The PSUs are fused, diode-protected and output limited so that a failure of one of the PSUs cannot disrupt or damage the others. The output voltage of the power supply units 12 is fed to a power distribution unit (PDU) 18 powered from the regulator 14.
Two output buses 22, 24 from the PDU 18 supply the three pairs of transceivers 26 in a trisector base station of a GSM cellular radio system. A third output bus 20 supplies a station unit 28 which provides control and transmission facilities for the base station. The three output buses 24, 22, 20 are respectively accorded low, medium and high priority ratings in the PDU. The PDU monitors the input voltage from the three parallel connected power supply units 12. If the input voltage falls below a predetermined threshold, the PDU 18 isolates the power bus 24 having the lowest priority rating. This isolates one transceiver of the pair of transceivers serving each sector. If the input voltage drops further the output bus 22 is isolated, and a further drop in input voltage to the PDU causes the bus 22 to be disconnected.Upon power up or system reset, the PDU energises the output buses sequentially. If there is a primary failure, and the BTS is running on standby batteries, the PDU will disconnect low priority equipment to conserve battery power.
The PDU 18 contains an analogue voltage sensing circuit, an 8051 microprocessor and a set of multi-pole relays which control power supply to the buses. Its simple construction and function guarantee a high reliability.
The power buses contain several supply voltages, such as +12, +5 and -12 volts.
Referring to Figure 2, the apparatus again comprises an external supply 10 feeding three parallel-connected power supply units through the intermediary of a battery charge regulator 14 linked to a stand-by battery 16.
The output voltage from the three PSUs 12 forms a common power bus 30 which goes to each of the three pairs of transceivers in the trisectored base station. Each TRX has an internal power supply relay which allows it to be switched off and isolated. The power supply relays are controlled, through power control lines 34, by a power control unit in a base station control function 32.
If the power supply voltage from the power supply units falls below the predetermined threshold, the power control unit isolates the individual transceivers according to a predetermined power-shedding priority rating. This maintains maximum service provision under fault conditions.

Claims (4)

Claims
1. Apparatus for managing power supply to a base station having a plurality of transceivers, the apparatus comprising a plurality of power supply units connected in parallel, control means connected to the output of the power supply units and operative, upon reduction in voltage from the power supply units, to disconnect the transceivers in a progressive manner in accordance with a predetermined power-shedding priority rating.
2. Apparatus according to claim 1, wherein the control means comprise a power distribution unit which supplies the transceivers by means of power buses to which the priority ratings are accorded.
3. Apparatus according to claim 1, wherein the control means comprise switches which control the supply of power to the transceivers and which are operative to disconnect the transceivers in accordance with the predetermined power shedding priority rating.
4. Apparatus for managing power supply to a base station having a plurality of transceivers, constructed and arranged substantially as herein particularly described with reference to Figure 1 or Figure 2 of the accompanying drawings.
GB9317893A 1993-08-27 1993-08-27 Apparatus for managing power supply to a telecommunications base station Withdrawn GB2281458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9317893A GB2281458A (en) 1993-08-27 1993-08-27 Apparatus for managing power supply to a telecommunications base station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9317893A GB2281458A (en) 1993-08-27 1993-08-27 Apparatus for managing power supply to a telecommunications base station

Publications (2)

Publication Number Publication Date
GB9317893D0 GB9317893D0 (en) 1993-10-13
GB2281458A true GB2281458A (en) 1995-03-01

Family

ID=10741169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9317893A Withdrawn GB2281458A (en) 1993-08-27 1993-08-27 Apparatus for managing power supply to a telecommunications base station

Country Status (1)

Country Link
GB (1) GB2281458A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2332341A (en) * 1997-12-02 1999-06-16 Nec Corp Reducing power consumption in a telephone base station in the event of a fault
EP0777929A4 (en) * 1995-06-01 1999-06-30 M Larry Edwards LIGHTING SYSTEM WITH BUILT-IN SAFETY, HARDWARE AND DIMMING
GB2298499B (en) * 1995-02-28 1999-09-15 Motorola Ltd Method and apparatus for limiting peak current levels in electronic equipment
WO2000059121A1 (en) * 1999-03-30 2000-10-05 Ketonen Veli Pekka Method and apparatus to increase the backup battery lifetime in a base station
EP1113561A1 (en) * 1999-12-27 2001-07-04 Nec Corporation Portable information terminal and power supply control method therefor
WO2001061819A1 (en) * 2000-02-16 2001-08-23 Emerson Energy Systems Ab System for power connection and reconnection
WO2001082641A1 (en) * 2000-04-19 2001-11-01 Telefonaktiebolaget Lm Ericsson An arrangement and a method for managing power of a telecommunication network element
GB2375664A (en) * 2001-05-19 2002-11-20 Robert Leigh Electrical power distribution bus
EP1122850A3 (en) * 2000-01-15 2004-01-28 Goodrich Actuation Systems Ltd Apparatus and method for supplying and controlling electrical power
WO2005060287A1 (en) * 2003-12-19 2005-06-30 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive power management for a nod of a mobile telecommunications network
US7162654B1 (en) * 2001-01-04 2007-01-09 3Pardata, Inc. Isolation of I2C buses in a multiple power domain environment using switches
US7355993B2 (en) * 2002-06-27 2008-04-08 Adkins Keith L Method and apparatus for forward link gain control in a power controlled repeater
CN101841896A (en) * 2010-04-02 2010-09-22 李瑛� Wireless mobile communication base station capable of automatically adjusting carrier frequency power supply and realization method thereof
EP2271172A1 (en) * 2009-07-01 2011-01-05 Vodafone Group PLC Energy managed service provided by a base station
EP2304928A4 (en) * 2008-07-10 2012-09-19 T Mobile Usa Inc ENERGY SAVING AT A CELL LOCATION
US8729732B2 (en) 2008-07-10 2014-05-20 T-Mobile Usa, Inc. Cell site power generation
US8983546B2 (en) 2009-07-24 2015-03-17 T-Mobile Usa, Inc. Rectifier circuit management system, for use in cell site power systems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1513812A (en) * 1974-05-15 1978-06-07 Siv Soc Italiana Vetro Automatic cut-out device for a generator and battery fed circuit including non-essential loads
US4129893A (en) * 1977-05-31 1978-12-12 The United States Of America As Represented By The Secretary Of The Army Thermoelectric generator overload protective device using hysterisis control
EP0287305A2 (en) * 1987-04-15 1988-10-19 Nec Corporation Radio communication apparatus including power supply device
EP0310284A2 (en) * 1987-09-29 1989-04-05 Kabushiki Kaisha Toshiba Automobile telephone device
US4902956A (en) * 1986-12-12 1990-02-20 Sloan Jeffrey M Safety device to prevent excessive battery drain
US4935642A (en) * 1987-01-20 1990-06-19 Nixdorf Computer Ag Circuit for distributing electrical power to several functional units

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1513812A (en) * 1974-05-15 1978-06-07 Siv Soc Italiana Vetro Automatic cut-out device for a generator and battery fed circuit including non-essential loads
US4129893A (en) * 1977-05-31 1978-12-12 The United States Of America As Represented By The Secretary Of The Army Thermoelectric generator overload protective device using hysterisis control
US4902956A (en) * 1986-12-12 1990-02-20 Sloan Jeffrey M Safety device to prevent excessive battery drain
US4935642A (en) * 1987-01-20 1990-06-19 Nixdorf Computer Ag Circuit for distributing electrical power to several functional units
EP0287305A2 (en) * 1987-04-15 1988-10-19 Nec Corporation Radio communication apparatus including power supply device
EP0310284A2 (en) * 1987-09-29 1989-04-05 Kabushiki Kaisha Toshiba Automobile telephone device

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298499B (en) * 1995-02-28 1999-09-15 Motorola Ltd Method and apparatus for limiting peak current levels in electronic equipment
EP0777929A4 (en) * 1995-06-01 1999-06-30 M Larry Edwards LIGHTING SYSTEM WITH BUILT-IN SAFETY, HARDWARE AND DIMMING
US6353747B1 (en) 1997-12-02 2002-03-05 Nec Corporation Portable cellular phone base station
GB2332341A (en) * 1997-12-02 1999-06-16 Nec Corp Reducing power consumption in a telephone base station in the event of a fault
WO2000059121A1 (en) * 1999-03-30 2000-10-05 Ketonen Veli Pekka Method and apparatus to increase the backup battery lifetime in a base station
US6366774B1 (en) 1999-03-30 2002-04-02 Nokia Telecommunications, Oy Method and apparatus for providing RF output power compensation for a battery backup system
US6735455B2 (en) 1999-12-27 2004-05-11 Nec Corporation Portable information terminal and power supply control method therefor
EP1113561A1 (en) * 1999-12-27 2001-07-04 Nec Corporation Portable information terminal and power supply control method therefor
EP1122850A3 (en) * 2000-01-15 2004-01-28 Goodrich Actuation Systems Ltd Apparatus and method for supplying and controlling electrical power
WO2001061819A1 (en) * 2000-02-16 2001-08-23 Emerson Energy Systems Ab System for power connection and reconnection
US6531791B2 (en) 2000-02-16 2003-03-11 Emerson Energy Systems Ab System for power connection and reconnection
WO2001082641A1 (en) * 2000-04-19 2001-11-01 Telefonaktiebolaget Lm Ericsson An arrangement and a method for managing power of a telecommunication network element
US7162654B1 (en) * 2001-01-04 2007-01-09 3Pardata, Inc. Isolation of I2C buses in a multiple power domain environment using switches
GB2375664A (en) * 2001-05-19 2002-11-20 Robert Leigh Electrical power distribution bus
US7355993B2 (en) * 2002-06-27 2008-04-08 Adkins Keith L Method and apparatus for forward link gain control in a power controlled repeater
US8032172B2 (en) 2002-06-27 2011-10-04 Qualcomm Incorporated Method and apparatus for forward link gain control in a power controlled repeater
US7904115B2 (en) * 2003-12-19 2011-03-08 Telefonaktiebolaget L M Ericsson (Publ) Adaptive power management for a node of a mobile telecommunications network
CN100482000C (en) * 2003-12-19 2009-04-22 艾利森电话股份有限公司 Adaptive power management for mobile telecommunications network nodes
WO2005060287A1 (en) * 2003-12-19 2005-06-30 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive power management for a nod of a mobile telecommunications network
US8729732B2 (en) 2008-07-10 2014-05-20 T-Mobile Usa, Inc. Cell site power generation
EP2304928A4 (en) * 2008-07-10 2012-09-19 T Mobile Usa Inc ENERGY SAVING AT A CELL LOCATION
US9386518B2 (en) 2008-07-10 2016-07-05 T-Mobile Usa, Inc. Cell site power generation
US10433245B2 (en) 2008-07-10 2019-10-01 T-Mobile Usa, Inc. Cell site power generation
US11082917B2 (en) 2008-07-10 2021-08-03 T-Mobile Usa, Inc. Cell site power generation
ES2360713A1 (en) * 2009-07-01 2011-06-08 Vodafone España, S.A.U. Energy managed service provided by a base station
EP2271172A1 (en) * 2009-07-01 2011-01-05 Vodafone Group PLC Energy managed service provided by a base station
US8515492B2 (en) 2009-07-01 2013-08-20 Vodafone Group, Plc Energy managed service provided by a base station
US8983546B2 (en) 2009-07-24 2015-03-17 T-Mobile Usa, Inc. Rectifier circuit management system, for use in cell site power systems
US9603089B2 (en) 2009-07-24 2017-03-21 T-Mobile Usa, Inc. Rectifier circuit management system, such as for use in cell site power systems
CN101841896B (en) * 2010-04-02 2012-10-17 李瑛� Wireless mobile communication base station capable of automatically adjusting carrier frequency power supply and realization method thereof
CN101841896A (en) * 2010-04-02 2010-09-22 李瑛� Wireless mobile communication base station capable of automatically adjusting carrier frequency power supply and realization method thereof

Also Published As

Publication number Publication date
GB9317893D0 (en) 1993-10-13

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)