WO2007066265A2 - Dispositif mobile et procede de gestion de puissance destine a un dispositif mobile - Google Patents

Dispositif mobile et procede de gestion de puissance destine a un dispositif mobile Download PDF

Info

Publication number
WO2007066265A2
WO2007066265A2 PCT/IB2006/054546 IB2006054546W WO2007066265A2 WO 2007066265 A2 WO2007066265 A2 WO 2007066265A2 IB 2006054546 W IB2006054546 W IB 2006054546W WO 2007066265 A2 WO2007066265 A2 WO 2007066265A2
Authority
WO
WIPO (PCT)
Prior art keywords
mobile device
power
access
level
power supply
Prior art date
Application number
PCT/IB2006/054546
Other languages
English (en)
Other versions
WO2007066265A3 (fr
Inventor
Alexander W. Heerink
Jarno Guidi
Maarten P. Bodlaender
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2007066265A2 publication Critical patent/WO2007066265A2/fr
Publication of WO2007066265A3 publication Critical patent/WO2007066265A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving 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
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • 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 invention relates to a mobile device and a power managing method for a mobile device.
  • Mobile devices as well as handheld devices, like mobile phones, PDA, media players or the like are becoming more and more commonplace in the daily life of an increasing amount of people. Furthermore, these devices are typically able to communicate with their environment and comprise an on-board power supply usually implemented by rechargeable batteries.
  • a limiting factor during the operation of devices is the operating time of the power supply.
  • the operating time of the power supply will depend on the applications which are performed on the mobile device or the handheld device. For example, a computation intensive application will require more power than a case where the device is only in stand-by. The same applies to the case where the devices communicate with their environment. As such a communication is typically a bi-directional communication, power will not only be dissipated when the device receives data but also when the device transmits data.
  • a mobile device which comprises a power supply, an input/output interface and a control unit.
  • the power supply serves to supply electrical power for the mobile device.
  • the input/output interface enables an access to the mobile device.
  • the control unit controls an access to the mobile device via the input/output interface according to the available power level in the power supply.
  • the control unit denies an access to the mobile device if the available power level falls below a threshold value.
  • a mobile device is provided with an intelligent access control.
  • the access to the mobile device is controlled according to the available power level such that any access request to the mobile device will be denied if there is not sufficient power left in the power supply to cater for the requested access.
  • the input/output interface comprises a wireless communication interface for enabling a wireless communication with external devices.
  • the input/output interface also comprises a user interface for enabling a user access to the mobile device. Therefore, the access request from external devices can be controlled according to the available power level. Immediate user access to the mobile device may also be controlled according to the available power level.
  • control unit comprises a power managing unit for determining the available power level in the power supply and for comparing the determined value to a threshold value. The results of the comparison are output.
  • control unit furthermore comprises an access control unit for controlling the access to the mobile device according to the comparison result of the power managing unit.
  • the access control unit controls the access to the mobile device according to a user profile. Therefore, the owner of a mobile device has higher access rights or in other words, he will be able to access the mobile device even if the power level of the power supply falls below the threshold value.
  • the access rights to the mobile device are defined in the user profiles.
  • the power managing unit compares the available power level not only just to a threshold value, but also to a power warning level.
  • the power managing unit outputs a warning signal to the input/output interface if the available power level falls below the warning level.
  • the power warning level is higher than the threshold value. Accordingly, a warning signal is initiated such that any user accessing the device either immediately or via a wireless communication will be notified that the available power level of the mobile device is becoming low and that the access to the mobile device may be restricted due to a low power level of the power supply.
  • Such a mobile device is advantageous as it does not stop all communication to other devices if the battery level falls below a threshold value intelligently restricts the communication of other devices which are less privileged or have a lower priority.
  • Typical access control mechanisms for mobile devices are based on the profile of the user or the respective service which is requested to be performed by the device.
  • a user for example of another device may be authorized to use a service, for example on the mobile device or not based on the respective user profile.
  • a user or service can initiate a processing or application on the mobile device such that the operating time of the battery of the device is reduced.
  • the usage of the power stored in the battery of the device by the owner of the device is acceptable, this may not be the case for guest users of the device or for services performed on the mobile device for outside users, i.e. another device.
  • a power management can be performed, for example by limiting the access to the mobile device. In other words, an access control is performed based on the power level of the power supply of the device. Therefore, the power
  • the power management of the mobile device denies an access of a guest user to the device or a service requested from an external device if the available power within a power supply of the device falls below a predetermined threshold value.
  • the power management of the mobile device may also deny a service requested by a user of the mobile device according to the user profile.
  • the power management of the mobile device correlates an access control to the device with the available power within the power supply of the device and restricts an access to the device if the available power is below a threshold value.
  • Fig.l shows a block diagram of a mobile device according to a first embodiment
  • Fig.2 shows a flow chart of a power managing method according to a first embodiment
  • Fig.3 shows a flow chart of a power managing method according to a second embodiment.
  • Fig.1 shows a block diagram of a mobile device according to the first embodiment.
  • the mobile device MD comprises a controlling unit CU for controlling the operation of the mobile device.
  • the mobile device MD further comprises a power supply PS and an input/output interface I/O.
  • the control unit CU in turn comprises a power managing unit PMU and an access control unit ACU.
  • the input/output interface I/O may comprise an interface for enabling a wireless communication with external devices and/or may comprise a user interface with which a direct user of the mobile device may access or use the mobile device.
  • the control unit CU observes the power level of the power supply and determines whether this power level falls below a predetermined threshold value T. If the mobile device MD is accessed through the input/output interface I/O, the control unit CU determines whether the available power level in the power supply PS is below a threshold value T. If the available power level in the power supply PS is above a threshold value, then the access to the mobile device is granted. However, if the available power level in the power supply PS falls below the threshold value T, the access to the mobile device MD can be denied.
  • the control unit CU comprises a power managing unit PMU and an access control unit ACU.
  • the power managing unit PMU compares the available power level in the power supply PS with a threshold power level value T. If the available power level in the power supply PS falls below the threshold value T, then the power managing unit PMU forwards a respective message to the access control unit ACU.
  • the access control unit ACU it is determined, preferably based on user profiles as stored in the access control unit ACU, whether the access to the mobile device originates from the owner of the mobile device, from a guest user of the mobile device or alternatively from another external device . If the access originates from the owner of the mobile device, the access is granted. If the access originates from an external device (i.e.
  • the access control unit ACU may comprise a user profile memory for storing user profiles. If the user profile of the user which is requesting a service of the mobile device corresponds to the user profile of the owner of the mobile device, no access control restrictions will be performed.
  • the access control unit ACU determines that the user profile of the user requesting a service of the mobile device relates to a direct guest user (for example a friend is using my mobile device), then the access to the mobile device can be restricted according to the above described power management.
  • the input/output interface I/O can be implemented as a network interface and/or as an external interface. In other words, the input/output interface I/O may be divided into an internal input/output interface and an external input/output interface. If the internal input/output interface is used, the access control unit ACU merely needs to determine whether the owner of the mobile device or a guest user of the mobile device requests access. If an access is requested via the external input/output interface, the access control unit ACU notes that it cannot be the owner of the mobile device who is trying to access the mobile device.
  • the above-mentioned power management can be applied for a case that the mobile device is not operated by the owner of the device but by a guest user. Accordingly, by means of the above-mentioned power management and the associated access control it can be prevented that the guest user drains the batteries of the mobile device. This can be performed by restricting the communication initiated by the guest user if the battery level drops below a certain threshold value.
  • the mobile device is involved in a communication with an external further device which may also be a mobile device, a connection with the external device is stopped if the available battery level falls below a threshold value.
  • a second embodiment of the invention (which is based on the first
  • an UPnP media server which may be implemented by a mobile device or a handheld device is used by an external device, for example a media renderer device.
  • an external device for example a media renderer device.
  • any authorized external access to the media server may drain the power supply of the media server such that the user of the media server (e.g. its owner) may not be able to use the device anymore.
  • An access of an external device to the media server is therefore only allowed if the actual battery level of the power supply does not fall below a certain threshold value. This threshold value may be specified by the owner of the media server, i.e. the owner of the mobile device.
  • a media renderer i.e. a mobile device
  • requests a service from the media server for example like rendering 30 minutes of a video data stream
  • the media renderer communicates its actual power level with the request for the particular service. If the media server determines that the actual power level of the media renderer is only sufficient for 15 minutes of video rendering, then the media server will deny the requested service.
  • Fig.2 shows a flow chart of a power management of a mobile device according to a first embodiment.
  • step SlO it is determined whether the device is operated by battery. If this is the case, the flow continues to step S20.
  • the currently available power level A is retrieved by the power managing unit PMU from the power supply PS of the mobile device. This power level may be expressed as relative power measure like 35% or an absolute power.
  • step S30 the power managing unit PMU compares the currently available power A to a threshold value T.
  • the threshold value T may indicate the minimum amount of battery power or the minimum battery power level that is required to allow an access to the mobile device.
  • Such a threshold may be defined in terms of the available power like 10% of the remaining power or in terms of the absolute remaining power like 500KJ.
  • the threshold level T may be predetermined or may alternatively be dynamically varying, i.e. over time or according to the user or service profiles.
  • step S30 If it is determined by the power managing unit PMU in step S30 that the available power level is below the threshold power level, then the access to the mobile device is prohibited by the access control unit ACU as the mobile device does not have sufficient power to perform the requested service. However, if the available power level A is greater than the threshold power level T, then the access to the mobile device will be granted and the mobile device will perform the requested services (step S50). Thereafter, the flow returns to step SlO. If it is determined in step SlO that the mobile device is not operated based on its internal power supply, then the flow continues to step S50 and the access to the mobile device is allowed and the mobile device performs the requested services.
  • This procedure is repeated at constant or at predetermined intervals to determine whether the mobile device has sufficient power left in its power supply to be operated based on the Alternatively the above procedure is repeated at random intervals.
  • the power management according to the first embodiment is based on the allowance or disallowance of services based on the determination whether the available power level is below the threshold value.
  • the client using services on the mobile device is forced to stop using the services on the mobile device if the available power level falls below a threshold power level without issuing a warning.
  • Fig.3 shows a flow chart of a power management of a mobile device according to the second embodiment.
  • an additional power level W is specified wherein the power level W indicates a warning level, at which a warning is to be issued if the available power level A falls below the warning power level. Therefore, the warning power level must be higher than the threshold value T but is typically chosen close to the threshold level T.
  • the warning power level W may be expressed as relative power measure, e.g. 40%, or as absolute power.
  • the warning power level W serves to provide an ability to warn any clients currently accessing the mobile device if the power level of the mobile device approaches the threshold value such that the client may be aware that the access to the services on the mobile device may be stopped.
  • step SlO it is determined whether the mobile device is operated by its own power supply or by an external power supply. If the mobile device is not operated on its own power supply, the flow continues to step S50 and the requested access to services on the mobile device is granted. Thereafter, the flow returns to step SlO.
  • step SlO it is determined that the mobile device is operated on its own internal power supply
  • step S60 it is determined whether the available power level is below the warning level W. If the available power level is not below the warning level, the flow continues to step S50 and the requesting client can access the requested services. If in step S60 it is determined that the available power level is below the warning level, the flow continues to step S30. In step S30, it is determined whether the available power level is below the threshold value T. If it is determined in step S30 that the available power level is below the threshold value W, then the flow continues to step S40, where the access of the client to the services on the mobile device is prohibited. Thereafter, the flow returns to step SlO.
  • step S30 it is determined that the available power level A is not below the threshold value T, then the flow continues to step S70.
  • step S70 a warning is issued to the client to indicate that only a limited power level is available on the mobile device. Thereafter, the flow continues to step S50 and the client is granted the access to the requested services on the mobile device.
  • the above-mentioned prohibiting of clients to a service on the mobile devices as described with reference to step S40 can be performed by prohibiting all clients, e.g. new and existing, to use any services provided by the mobile device.
  • any client that is already using a service on the mobile device will be stopped as soon as the available power level A drops below the threshold value T.
  • An alternative approach would be to forbid any new client to access a service on the mobile device but to allow the already operating and existing client to continue their use of the services of the mobile device. Therefore, the clients already accessing a service on the mobile device will not be stopped if the available power level drops below the warning power level or the threshold level T.
  • the particular value of the threshold T may be different for each client or user and may also vary over time.
  • the above power management according to the first and second embodiment may be performed at fixed intervals or during variable intervals. If the available power level is higher than the threshold power level T, an estimation may be performed to determine the time and power that is required to perform the requested access. If the estimation result such that the available power level of the mobile device falls below the threshold power level and to adapt the intervals of the power management scheme
  • a mobile device may be operated not by the owner thereof but also by a guest.
  • the mobile device may have been temporarily given to a friend.
  • the mobile device can be involved in a communication activity with a requesting device for example a mobile device or mobile phone of a friend.
  • a connection with the guest device is dropped as soon as the available battery level of the mobile device drops below a predetermined threshold.
  • the connection is only dropped if it was initiated by a guest device.
  • a connection may be dropped irrespectively of who initiated the connection if the available battery level falls below a threshold value.
  • a device which only receives incoming requests for example over an existing connection from a further device may simply drop the existing connection to the further device in order to perform the required power management.
  • connection with a single device will be dropped or stopped such that there is no need to parse the data.
  • the device may shut down a listening port in order to prevent that new request for connections are received.
  • all device that try to connect to the listening port of the users device will fail. Such request will simply be dropped and power is saved as there is no need to parse then.
  • the complete interface may be shut down such that all communication is stopped which saves the most amount of power but which is also the most restrictive case.
  • a further example of a one-way communication is a device which is merely sending data to a further device.
  • Such a communication may be a streaming video, i.e. a stream of video data from a video server to a video client. If the available battery level of the device falls below a threshold value the device can stop sending data such that video data does not have to be fetched, packetized and sent.

Abstract

La présente invention concerne un dispositif mobile qui comprend une alimentation électrique (PS), une interface d’entrée/sortie (I/O) et une unité de commande (CU). L’alimentation électrique (PS) est utilisée afin de fournir la puissance électrique au dispositif mobile. L’interface d’entrée/sortie (I/O) est utilisée pour permettre un accès au dispositif mobile (MD). L’unité de commande (CU) commande un accès au dispositif mobile via l’interface d’entrée/sortie (I/O) selon le niveau de puissance disponible (A) dans l’alimentation électrique. L’unité de commande (CU) refuse un accès au dispositif mobile si le niveau de puissance disponible (A) dans l’alimentation électrique (PS) chute en-dessous du niveau de puissance seuil.
PCT/IB2006/054546 2005-12-05 2006-12-01 Dispositif mobile et procede de gestion de puissance destine a un dispositif mobile WO2007066265A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05301004 2005-12-05
EP05301004.7 2005-12-05

Publications (2)

Publication Number Publication Date
WO2007066265A2 true WO2007066265A2 (fr) 2007-06-14
WO2007066265A3 WO2007066265A3 (fr) 2008-07-03

Family

ID=38123282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/054546 WO2007066265A2 (fr) 2005-12-05 2006-12-01 Dispositif mobile et procede de gestion de puissance destine a un dispositif mobile

Country Status (1)

Country Link
WO (1) WO2007066265A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024064467A1 (fr) * 2022-09-22 2024-03-28 Qualcomm Incorporated Économie d'utilisation de batterie sur des dispositifs alimentés par batterie

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845142A (en) * 1992-08-21 1998-12-01 Fujitsu Limited Portable terminal to control communication based on residual battery capacity
GB2354891A (en) * 1999-07-22 2001-04-04 Nec Corp Power supply method and device for mobile telephone
US20030158609A1 (en) * 2002-02-19 2003-08-21 Koninklijke Philips Electronics N.V. Power saving management for portable devices
FR2857195A1 (fr) * 2003-07-02 2005-01-07 Wavecom Procede de controle d'un service mis en oeuvre dans un dispositif de radiocommunication, pour optimiser la gestion de la charge de la batterie et dispositif de controle correspondant
EP1521438A1 (fr) * 2003-09-30 2005-04-06 Siemens Aktiengesellschaft Procédé pour assurer l'opération d'un téléphone mobile par déactivation d'applications en cas de baisse de la charge de la batterie
EP1594232A1 (fr) * 2004-05-06 2005-11-09 LG Electronics Inc. Procédé pour l'operation la source d'alimentation électrique d'un terminal mobile de communication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845142A (en) * 1992-08-21 1998-12-01 Fujitsu Limited Portable terminal to control communication based on residual battery capacity
GB2354891A (en) * 1999-07-22 2001-04-04 Nec Corp Power supply method and device for mobile telephone
US20030158609A1 (en) * 2002-02-19 2003-08-21 Koninklijke Philips Electronics N.V. Power saving management for portable devices
FR2857195A1 (fr) * 2003-07-02 2005-01-07 Wavecom Procede de controle d'un service mis en oeuvre dans un dispositif de radiocommunication, pour optimiser la gestion de la charge de la batterie et dispositif de controle correspondant
EP1521438A1 (fr) * 2003-09-30 2005-04-06 Siemens Aktiengesellschaft Procédé pour assurer l'opération d'un téléphone mobile par déactivation d'applications en cas de baisse de la charge de la batterie
EP1594232A1 (fr) * 2004-05-06 2005-11-09 LG Electronics Inc. Procédé pour l'operation la source d'alimentation électrique d'un terminal mobile de communication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024064467A1 (fr) * 2022-09-22 2024-03-28 Qualcomm Incorporated Économie d'utilisation de batterie sur des dispositifs alimentés par batterie

Also Published As

Publication number Publication date
WO2007066265A3 (fr) 2008-07-03

Similar Documents

Publication Publication Date Title
US9730232B2 (en) System and method for control and management of resources for consumers of information
US8305958B2 (en) Delegated network connection management and power management in a wireless device
US7583951B2 (en) Virtual batteries for wireless communication device
CA2660821C (fr) Provisionnement de qualites de services pour reseaux sans fil
KR101758819B1 (ko) 모바일 디바이스를 위한 배터리 전력 관리
US7991403B2 (en) Load balancing method for wireless network system
US9237460B2 (en) Traffic control method and device
KR101468354B1 (ko) 피어 투 피어 오버레이 네트워크들에서의 데이터 액세스 제어를 위한 방법 및 디바이스들
US20100306394A1 (en) Systems and Methods to Make a Resource Available Via A Local Network
US20120178481A1 (en) Remote management over a wireless wide-area network using short message service
US20150189373A1 (en) Efficient channel surfing in a content distribution network
CN102215229B (zh) 控制应用程序访问终端外部的方法和终端
WO2014063487A1 (fr) Procédé et dispositif de régulation de trafic
WO2017008580A1 (fr) Procédé et dispositif d'accès à réseau local pour station sans fil
WO2007095406A2 (fr) Procédé et appareil de synthèse d'informations de présence
CN106102142A (zh) 终端数据处理方法及装置
WO2013178108A1 (fr) Système et procédé de régulation de débit basés sur un wlan
US9043618B2 (en) Drawing power over network cable
WO2007066265A2 (fr) Dispositif mobile et procede de gestion de puissance destine a un dispositif mobile
KR20130094367A (ko) 네트워크 부하 저감 기능이 구비된 무선단말장치와 무선단말장치에서의 네트워크 부하 저감 방법과 기록매체
KR20050035457A (ko) 무선 네트워크망을 통해 통신하는 서버 시스템
CN102638796A (zh) 授权认证的变更配置方法及系统
US20220400399A1 (en) System and method to monitor a radio channel while servicing other radio channels
WO2021086711A1 (fr) Procédé permettant de fournir un accès à des dispositifs ido à des informations d'accès restreint

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 06832038

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 06832038

Country of ref document: EP

Kind code of ref document: A2