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WO2018191946A1 - Procédé pour faire fonctionner un dispositif possédant un mode commutable d'économie d'énergie permettant de réduire sa consommation d'énergie - Google Patents

Procédé pour faire fonctionner un dispositif possédant un mode commutable d'économie d'énergie permettant de réduire sa consommation d'énergie Download PDF

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Publication number
WO2018191946A1
WO2018191946A1 PCT/CN2017/081414 CN2017081414W WO2018191946A1 WO 2018191946 A1 WO2018191946 A1 WO 2018191946A1 CN 2017081414 W CN2017081414 W CN 2017081414W WO 2018191946 A1 WO2018191946 A1 WO 2018191946A1
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WO
WIPO (PCT)
Prior art keywords
saving mode
power saving
application
foreground
compatible
Prior art date
Application number
PCT/CN2017/081414
Other languages
English (en)
Inventor
Shi JIAO
Original Assignee
Orange
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 Orange filed Critical Orange
Priority to PCT/CN2017/081414 priority Critical patent/WO2018191946A1/fr
Priority to EP17832553.6A priority patent/EP3559779A2/fr
Priority to US16/472,563 priority patent/US11275424B2/en
Priority to PCT/IB2017/001662 priority patent/WO2018115958A2/fr
Publication of WO2018191946A1 publication Critical patent/WO2018191946A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • 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
    • H04W52/0264—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by selectively disabling software applications
    • 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
    • H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
    • H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
    • 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 field of this invention is that of mobile phones.
  • the invention relates to a method for operating a device so as to save battery power.
  • Recent mobile phones offer numerous features, including GPS, internet, music, video playing, games and countless apps. Unfortunately, many of these features can take a toll on the device's battery power and cause it to drain quickly. It is often required to charge the battery every evening.
  • the display frame rate of the mobile phone screen may be reduced and its brightness may be lowered. Consequently, such a screen power saving mode may deteriorate the user experience with some applications if they need good screen display effects. For instance, decreasing the screen frame rate is not advisable if the application is a video player: the playing of a film would lack of smoothness and become unpleasant for the user.
  • CPU consumption when enabling a CPU saving power mode, it reduces CPU performances (through a limitation or its clock frequency and/or voltage) , which may affect the behavior of applications if they need full CPU operation. If the power saving mode is switched on while there is an application running, such as GPS navigation, which requires a lot of CPU power, the application is thereby unpleasantly slowed down and the user experience is deteriorated.
  • the present invention provides a method for operating a device comprising at least one processing unit and a screen, said device having a switchable power saving mode for reducing the device power consumption, the method being characterized in that it comprises the following steps, performed by the processing unit:
  • this astute use of an existing power saving mode allows saving even more energy by reducing the device consumption when low quality is sufficient, while preventing deteriorating user experience by not reducing the device consumption when high quality is required.
  • Switching step (b) comprises switching on the power saving mode if the application running in foreground is determined compatible with the power saving mode;
  • ⁇ switching step (b) comprises switching off the power saving mode if the application running in foreground is not determined compatible with the power saving mode
  • the device comprises a battery, the step of switching off the power saving mode if the application running in foreground is not determined compatible with the power saving mode being only performed when a level of said battery is above a predetermined threshold;
  • the power saving mode comprises at least one switchable component, a component of the power saving mode being a screen power saving mode for reducing the power consumption due to the screen;
  • the power saving mode comprises at least one switchable component, a component of the power saving mode being a CPU power saving mode for reducing the power consumption due to the processing unit;
  • the device comprises a plurality of processing units, and wherein switching on the CPU power saving mode comprises switching off at least one of said processing units while keeping at least one of said processing units switched on;
  • the power saving mode comprises a plurality of switchable component (s) , the determining step (a) comprising determining if the application running in foreground is compatible with each switchable component of the power saving mode;
  • the switching step (b) comprises, for each component of the power saving mode, switching said component depending on whether the application running in foreground is compatible with said component;
  • the method comprises a previous step (a0) of monitoring which application is running in foreground so as to detect any change;
  • an application compatible with the power saving mode is an application which functions sensibly indistinguishably with or without the power saving mode
  • ⁇ at least one application compatible with the power saving mode presents at least one given tag in its code and determining step (a) comprises checking the code of the application running in the foreground for said tag (s) ;
  • ⁇ at least one list of applications compatible with the power saving mode is stored in a memory unit and determining step (a) comprises identifying the application running in foreground and checking the list (s) for said identified application;
  • the method comprises a step of receiving from the user of the device, for at least one application stored in said memory unit, an indication about the compatibility of said application with the power saving mode, so as to build said list (s) ;
  • the method comprises a step of receiving from a server connected to the device through a network, for at least one application stored in said memory unit, an indication about the compatibility of said with the power saving mode, so as to build said list (s) ;
  • the device comprises a battery, the method being performed only when the processing unit is powered by said battery.
  • the invention provides an electronic device comprising at least one processing unit and a screen, said electronic device having a switchable power saving mode for reducing its power consumption, said processing unit being configured to:
  • the invention provides a computer program product, comprising code instructions for executing a method according to the first aspect for operating a device comprising at least one processing unit and a screen, the device having a switchable power saving mode for reducing its power consumption; and a computer-readable medium, on which is stored a computer program product comprising code instructions for executing a method according to the first aspect for operating a device comprising at least one processing unit and a screen, the device having a switchable power saving mode for reducing its power consumption.
  • FIG. 1 illustrates an example of architecture in which the method according to the invention is performed.
  • FIG. 2 is a diagram representing steps of a preferred embodiment of a method according to the invention.
  • the presently described power saving mode may comprise a “screen power saving mode” i.e. a power saving mode component reducing the power consumption of the screen (through a decrease of the brightness of the screen or a reduction of the screen frame rate, for instance)
  • the power saving mode may comprise a “CPU power saving mode” , i.e. a power saving mode component reducing the power consumption of the CPU (through a limitation of its clock frequency and/or its voltage, for instance) .
  • Such power saving mode may comprise others components having additional effects on the power consumption, for example a limitation of the amount of data wirelessly transmitted, etc.
  • this power saving mode or its components have to be switched on or off manually by the user himself.
  • the user may set that the power saving mode is automatically switched on at a given low battery level (for instance 5%or 15%in Android OS phones) , so as to extend the time before the phone run out of battery (at the price of sacrificing the overall visual appearance) .
  • Such a conventional power saving mode fulfills its role, but it might lead to inadequacy, at a certain time, between the actual display quality/CPU power and the display quality/CPU power needed by the running applications.
  • the conventional power saving mode can be switched on while there is an application running, such as a game or a video player, which requires a certain screen performance, thereby making “uglier” the graphics of the application and deteriorating the user experience;
  • the conventional power saving mode can be switched off while there is an application running, such as e-book Reader, which does not require “gorgeous” graphics, thereby consuming uselessly screen power and depleting mobile battery;
  • the conventional power saving mode can be switched on while there is an application running, such as GPS navigation, which requires a lot of CPU power, thereby slowing down the application and deteriorating the user experience;
  • the conventional power saving mode can be switched off while there is an application running, such as e-book Reader, which does not require a lot of CPU power, thereby consuming uselessly CPU power and depleting mobile battery.
  • the conventional power saving mode is set so as to be automatically switched on at a battery level of 15%:
  • the applicant proposes a method for operating a device 1 such as a mobile phone, in which the power saving mode is switched on/off automatically according to the actual needs of the running application, as it will be explained in detail.
  • the present invention relates to a method for operating a device 1 as represented by figure 1.
  • the device comprises one or more processing unit (s) 11 and a screen 13.
  • the device 1 comprises several independent processing units forming a single multi-core processor unit.
  • the device 1 has a power saving mode for reducing its power consumption (which could also be designated as a “device power saving mode” ) , this power saving mode having one or more switchable component (s) .
  • a component of this power saving mode may be a screen power saving mode for reducing the power consumption due to the screen 13, for instance by reducing the frame rate of screen 13 or its brightness.
  • this power saving mode may be a CPU power saving mode for reducing the power consumption due to the processing unit (s) 11.
  • this CPU power saving mode may consist in switching off one or more, but not all, of these several processing units.
  • the CPU power saving mode may consist in reducing the frequency and/or the voltage of the processing unit (s) .
  • a combination of both processing unit (s) switching off and frequency/voltage reduction can be used for a device having several processing units.
  • the power saving mode is generally implemented by the operating system of device 1.
  • the screen 13 is a user interface, possibly touch sensitive.
  • the device 1 typically further comprises a memory 12 (for example flash memory) , in particular for storing applications, which can be of various types.
  • the processing unit 11 is able to run simultaneously one or more of these applications, in particular:
  • the application running in foreground uses the screen 13 and thus mostly defines the need for display quality. Furthermore, only the application running in foreground may need the full CPU power.
  • the device 1 also comprises a battery 14, in particular a rechargeable battery (for instance made of lithium polymer) for powering the screen 13 and other units.
  • a battery 14 in particular a rechargeable battery (for instance made of lithium polymer) for powering the screen 13 and other units.
  • the processing unit 11 might be configured to automatically switch off the power saving mode when plugged to a power supply (when charging the battery) .
  • the device 1 may further comprise others units such as a location unit for providing location data representative of the position of the device 1 (using for example GPS, network triangulation, etc. ) , a communication unit for connecting (in particular wirelessly) the device 1 to a network 20 (for example WiFi, Bluetooth, and preferably a mobile network, in particular a GSM/UMTS/LTE network, see below) , etc.
  • a location unit for providing location data representative of the position of the device 1 (using for example GPS, network triangulation, etc. )
  • a communication unit for connecting (in particular wirelessly) the device 1 to a network 20 (for example WiFi, Bluetooth, and preferably a mobile network, in particular a GSM/UMTS/LTE network, see below) , etc.
  • a network 20 for example WiFi, Bluetooth, and preferably a mobile network, in particular a GSM/UMTS/LTE network, see below
  • the device 1 is typically a smartphone, a tablet computer, a laptop, etc.
  • the example of a smartphone will be used.
  • the present method is performed by the processing unit 11 of the device, and is advantageously implemented by a dedicated software application, separate from the operating system. Alternatively, the present method can be implemented by the device operating system itself.
  • This step (a) is preferably performed when detecting a change of application running in foreground ( “CHanGe of ForeGrounD APPlication? ” ) . More precisely, the dedicated software application (which runs in background) monitors the foreground in a previous step (a0) , and performs the step (a) at each time the foreground application is changed, for instance because it is switched by the user: the determination step is performed on the new application which becomes running in the foreground.
  • the application running in foreground shall preferably be compatible with each of these components to be compatible with the power saving mode. It is to noted that a set of components can be selected (components for which the switching is “automatic” ) notably by the user, and the determining step (a) is only performed for these selected components.
  • the power saving mode comprises, or even consists of, a screen power saving mode
  • an application “compatible with the screen power saving mode” it is meant a “low graphics application” , i.e. an application without high display quality requirements, which can run normally in a screen power saving mode (without visual quality degradation) . It is typically an application whose display is mainly still, for example a messaging application, a reading application, an internet browser, etc.
  • an application “not compatible with the screen power saving mode” is a “high graphics application” , i.e. an application with high display quality requirements which cannot run properly in a screen power saving mode (because they need high screen power consumption to perform smoothly and aesthetically on the screen 13) .
  • the power saving mode comprises, or consists of, a CPU power saving mode
  • a “low CPU power application” i.e. an application which can run normally in a CPU power saving mode (without performance degradation) , for example a messaging application, a reading application, an internet browser, etc.
  • an application “not compatible with the CPU power saving mode” is a “full CPU power” application, i.e. an application which cannot run properly in a CPU power saving mode (because they need as much CPU power as possible to perform in real time) , for example a movie player, a GPS navigation application, a game, etc.
  • the determination step (a) can comprise determining whether the application running in foreground can run with a reduced number of processing units switched on, or even with only one of said processing units 11 switched on, all the other processing units being switched off.
  • any high graphics application is considered as not compatible with the screen power saving mode, and any full CPU power application is considered as not compatible with the CPU power saving mode.
  • the power saving mode only comprises a screen power saving mode component
  • a GPS navigation application will be considered compatible, but not if the power saving mode also comprises a CPU power saving mode component.
  • any application which functions (while in foreground) sensibly indistinguishably with or without the power saving mode i.e. the user is not able to perceive any degradation of quality of service
  • any application which functions distinguishably not as well (while in foreground) when the power saving mode is on i.e. the user is able to perceive a degradation of quality of service
  • the step (a) of determining if the application running in foreground is compatible with the power saving mode might be performed in various ways, in particular by checking an indicator associated with each application which may run on the device 1.
  • Step (a) thus further comprises identifying the application running in foreground, and checking the list for said identified application.
  • the method might comprise a further step (advantageously performed before step (a) ) of receiving from a user of device 1, for one or more application (s) stored in said memory unit 12, an indication about the compatibility of this application with the power saving mode.
  • the list may be obtained following an input from the user, which may be presented with a menu listing all potential applications in order to decide, for each application, whether he considers the application to be compatible the power saving mode, i.e. whether he wants to use power saving mode or not (for instance with an on/off toggle bar) .
  • This new menu can be proposed in a specific operator’s application or as an additional menu of the operating system.
  • step (a) may comprise checking each list corresponding to a selected component of the power saving mode for said identified application (the application must be in every checked list to be determined wholly compatible) .
  • the processing unit 11 may obtain remotely the compatibility indication (s) , for instance by receiving it from a server 10 connected to the device 1 via the network 20. The reception of such compatibility information may be triggered by the device 1 requesting this compatibility information remotely. Similarly, each time a new application is installed on the device 1 and stored in the memory 12, a new request for compatibility information can be sent to the server 10, which may return an indication about the compatibility of this specific application.
  • step (a) then comprises checking the code of the application running in the foreground for said tag (s) .
  • the applications can be tagged by such an indicator by the application developers themselves, when they develop the application code.
  • the dedicated software application looks for such tag (s) in a specific part of the application code and takes its decision on that basis.
  • the processing unit 11 may determine if this application is compatible with the power saving mode by both checking the code of the running application for the given tag (s) , and checking the list (s) for the running application. If at least one criterion is met (i.e. the application code presents the given tag (s) and/or is found in the list (s) ) , then the application is considered as being compatible, if neither are met (i.e. the application does not present all the given tag (s) and is not found in one of the checked list (s) ) , then it is considered as not being compatible.
  • step (b) the power saving mode is activated or not as a function of the result of the compatibility determination.
  • the power saving mode is switched depending on whether the application running in foreground is determined compatible with the power saving mode
  • the power saving mode is switched on if the application running in foreground is determined compatible with the power saving mode (alternative (b1) of figure 2 – “Power Saving Mode ON” ) . It has to be understood that if the power saving mode was already on, its state is not modified.
  • the power saving mode is switched off if the application running in foreground is not determined compatible with the power saving mode (alternative (b2) of figure 2 – “Power Saving Mode OFF” ) .
  • the power saving mode was already off, its state is not modified.
  • switching on the power saving mode is being performed only when the processing unit 11 is powered by said battery 14.
  • the power saving mode may not be available (as there is a “limitless” supply of energy, there is no need to stress the screen by requesting a consumption reduction) .
  • an additional condition may be provided that under a given “critical” battery level (advantageously lower than the known levels for automatically switching on the power saving mode, for example inferior than 5%, 3%or even 2%) , the power saving mode is kept on even if the application running in the foreground is not compatible with it. This way, in case of emergency, this power saving mode can be activated by the user (if for instance he wants the device 1 to not run out of battery at any cost) , even at the cost of the user experience deterioration.
  • step (a0) Alter the power saving mode is switched on/off, the system reverts to the state of monitoring the foreground application for change (step (a0)) .
  • switching the power saving mode on implies switching the screen power saving mode on, for instance by reducing the screen frame rate or the brightness of the screen 13.
  • switching the power saving mode on implies switching the CPU power saving mode on, for instance by reducing the frequency and/or the voltage of the processing unit 11.
  • the device 1 comprises several processing units 11 (e.g. multi-core CPU) , this can be achieved by switching off some of the processing units 11, or even all of them but one.
  • the whole power saving mode can be switched on or off (i.e. every components) , or only some components (in particular among said set of selected components already discussed) depending on whether the application running in foreground is compatible with said component of the power saving mode.
  • the application running in foreground is determined not compatible only with the CPU power saving mode (for example a GPS application) while a two components power saving mode (CPU + screen) is on, either the whole power saving mode is switched off, or only the CPU power saving mode so as to keep the screen power saving mode with is still compatible with the application.
  • the user may select components by defining for each of them if it is “on” , “off” or “automatic” , only the components in automatic mode being selected, i.e. checked for compatibility during step (a) and possibly switched during step (b) .
  • a real-time game is used in foreground.
  • the processing unit 11 checks and finds that this application needs high display quality and thus is not “screen power saving mode” compatible.
  • this eBook reader application becomes the application running in foreground while the game becomes an application running in background (it does not use the screen 13 anymore) .
  • the processing unit 11 detects this change of foreground application, checks if the eBook reader application is “screen power saving mode” compatible and, since it detects that it is the case, triggers the switching on of the screen power saving mode, for instance by reducing the screen frame rate or triggering the screen brightness reduction.
  • the processing unit 11 can check which type of application is now running in foreground. For instance, if the user plays again with the aforementioned real-time game, which then comes back running in foreground, the processing unit 11 detects this new change of foreground application, determines that the application now running in foreground needs high display quality, and thus is not “screen power saving mode” compatible, so that it triggers the switching off of the screen power saving mode, for instance by increasing the screen frame rate back or increasing the screen brightness.
  • the processing unit 11 can decide to automatically trigger the switching off of the power saving mode when stopping using a “screen power saving mode” compatible application running in the foreground, in order to automatically return to normal mode.
  • the present invention concerns an electronic device 1 comprising at least one processing unit 11 and a screen 13, said electronic device 1 having a switchable power saving mode for reducing its power consumption.
  • the processing unit 11 is adapted for carrying out the method for operating as previously described.
  • This device 1 may also comprise a memory 12, a battery 14.
  • the aforementioned processing unit 11 is in particular configured to implement the steps of:
  • the invention further proposes a computer program product, comprising code instructions for executing (in particular with a processing unit 11 of the device 1) the previously described method, as well as a computer-readable medium (in particular a memory 12 of the device 1) , on which is stored a computer program product comprising code instructions for executing said method.
  • this computer program product may correspond to the dedicated software application discussed previously.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

La présente invention concerne un procédé pour faire fonctionner un dispositif (1) qui comprend au moins une unité de traitement (11) et un écran (13), ledit dispositif (1) possédant un mode commutable d'économie d'énergie permettant de réduire la consommation d'énergie du dispositif (1), le procédé étant caractérisé en ce qu'il comprend les étapes suivantes, exécutées par l'unité de traitement (11), consistant à : déterminer (a) qu'une application exécutée en premier plan est, ou n'est pas, compatible avec le mode d'économie d'énergie; effectuer la commutation (b) du mode d'économie d'énergie en fonction de si l'application exécutée en premier plan est, ou n'est pas, compatible avec le mode d'économie d'énergie.
PCT/CN2017/081414 2016-12-22 2017-04-21 Procédé pour faire fonctionner un dispositif possédant un mode commutable d'économie d'énergie permettant de réduire sa consommation d'énergie WO2018191946A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2017/081414 WO2018191946A1 (fr) 2017-04-21 2017-04-21 Procédé pour faire fonctionner un dispositif possédant un mode commutable d'économie d'énergie permettant de réduire sa consommation d'énergie
EP17832553.6A EP3559779A2 (fr) 2016-12-22 2017-12-14 Procédé pour faire fonctionner un dispositif possédant un mode commutable d'économie d'énergie pour réduire sa consommation d'énergie
US16/472,563 US11275424B2 (en) 2016-12-22 2017-12-14 Method for operating a device having a switchable power saving mode for reducing its power consumption
PCT/IB2017/001662 WO2018115958A2 (fr) 2016-12-22 2017-12-14 Procédé pour faire fonctionner un dispositif possédant un mode commutable d'économie d'énergie pour réduire sa consommation d'énergie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/081414 WO2018191946A1 (fr) 2017-04-21 2017-04-21 Procédé pour faire fonctionner un dispositif possédant un mode commutable d'économie d'énergie permettant de réduire sa consommation d'énergie

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WO2018191946A1 true WO2018191946A1 (fr) 2018-10-25

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CN111752632A (zh) * 2020-06-01 2020-10-09 Oppo（重庆）智能科技有限公司 移动终端的控制方法、装置、移动终端以及存储介质
CN111752632B (zh) * 2020-06-01 2024-09-17 Oppo（重庆）智能科技有限公司 移动终端的控制方法、装置、移动终端以及存储介质
CN114048031A (zh) * 2021-11-09 2022-02-15 维沃移动通信有限公司 网络性能的调整方法及装置

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