CN105101371B - A kind of mobile phone power saving management method - Google Patents
A kind of mobile phone power saving management method Download PDFInfo
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- CN105101371B CN105101371B CN201510486277.4A CN201510486277A CN105101371B CN 105101371 B CN105101371 B CN 105101371B CN 201510486277 A CN201510486277 A CN 201510486277A CN 105101371 B CN105101371 B CN 105101371B
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- 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
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/73—Battery saving arrangements
-
- 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
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- Computer Networks & Wireless Communication (AREA)
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Abstract
Present invention is disclosed a kind of mobile phone power saving management methods, include the following steps：Power saving entrance is arranged in base band OS, after base band enters idle, application subsystem state is first inquired, to control whether that power saving flow can be entered；If state is work, after virtual machine is switched to application subsystem, Linux carries out task scheduling；Enter if Linux tasks at this time are completed and apply idle flows, if there is the generation of suspend events at this time, will enter and apply suspend flows；After sleep awakening, it is work to set application subsystem state, and carries out timer compensation；When base band again goes into idle, then Linux is switched to；If detection is pending without interrupting generation etc., the VPIPE orders with sleep instructions are sent again, and notice base band enters sleep, repeatedly；Indicate when needing to wake up in application, removing sleep, sends VPIPE orders to application；After base band enters idle, it is switched to Linux, Linux, which is detected, interrupts pending, then carries out respective handling.The present invention can effectively reduce mobile telephone power consumption, save mobile phone electric energy.
Description
Technical field
The invention belongs to mobile communication technology fields, are related to a kind of method for managing power supply more particularly to a kind of mobile phone power saving
Management method.
Background technology
For mobile communication terminal, the energy consumption problem of terminal is both that the key factor of system performance and user recognize
The key index that can be spent has become one of the important indicator of assessment terminal capabilities, the research of electricity saving of mobile terminal mechanism and reality
Now become more urgent.
Meanwhile along with the continuous development of communications industry, merged take pictures, image, music, the multi-functional intelligence such as game
Mobile phone should need and give birth to and be able to fast development.Compared with conventional mobile phone, the advantage of smart mobile phone clearly, equally, ask by power consumption
Topic is also to be doubled and redoubled.
The message register having a single function still is limited to for the research of mobile phone terminal Low-power Technology, so intelligence must be accelerated
The research of mobile phone terminal Low-power Technology, to solve thing followed power problems.
Invention content
The technical problem to be solved by the present invention is to：A kind of mobile phone power saving management method is provided, mobile phone work(can be effectively reduced
Consumption saves mobile phone electric energy, prolonging service method of mobile phone battery.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of mobile phone power saving management method, there are three types of states altogether for the application subsystem of mobile phone, respectively：Work work shapes
State, suspend mode suspend states, free time idle states；
Work work states：There is working condition of the task in execution, it can be to suspend and idle transitions between states；
Suspend mode suspend states：When in work states, system transits to suspend states, and the process of freezing allows peripheral hardware
Into dormant state；When wake events generation then returns to work states；
Idle idle states：It can enter idle states from work when all task runs finish system；When there is wake events
Work states are then returned when generation；
There are three types of states altogether for baseband subsystems, respectively：Work work states, sleep sleep states, free time idle shapes
State；
Work work states：Referring to base band side has task or interruption executing；
Sleep sleep states：Power saving sleep pattern, according to specific mechanism, there are many sleep pattern types；
Idle idle states：Refer to an abstract concept, only base band is from work states to the transition of sleep states；
Described method includes following steps：
Power saving entrance is arranged in base band OS, after base band enters idle, application subsystem state is first inquired, to control
Whether power saving flow can be entered；If state is work, after virtual machine is switched to application subsystem, Linux is carried out
Task scheduling；Enter if Linux tasks at this time are completed and apply idle flows, if having the generation of suspend events, Jiu Huijin at this time
Enter to apply suspend flows；After freezing process and peripheral hardware being allowed to enter a series of dormant state this low-power consumption setting work, using son
System sends the sleep commands appointed in advance by virtual pipe VPIPE to base band, and base band is arranged after receiving this VPIPE order
Application subsystem state is the free time；After base band is again introduced into idle, application subsystem state is inquired, if it is free time, base band
Low-power consumption module starts sleep flow in subsystem, and base band sleeps flow to control chip interior module and peripheral module in phase
The time slot answered enters battery saving mode；It is broadly divided into 4 by the baseband subsystems power-saving control used as modem modem
Point：Physical layer, protocol stack, operating system and hardware driving；Wherein, physical layer is mainly responsible for by the number of protocol stack planning time point
According to measurement task, protocol stack, which is mainly responsible for, calculates next discontinuous reception DRX time of measuring point；At this point, OS does not have task
Scheduling or interrupt processing, are judged as constraints and the time point calculated according to protocol stack and system timer time point carry out
Compare, codetermine and which kind of pattern sleep entered, then carry out system protection and data protection act, then call hardware driving,
It is achieved to modules power-saving control；
After sleep awakening, it is work to set application subsystem state, and carries out timer compensation；When base band is again gone into
Idle is then switched to Linux；If detection is pending without interrupting generation etc., sent again with sleep instructions
VPIPE orders, notice base band enter sleep, repeatedly；Indicate when needing to wake up in application, removing sleep, sends VPIPE lives
It enables to application；After base band enters idle, it is switched to Linux, Linux, which is detected, interrupts pending, then carries out respective handling.
A kind of mobile phone power saving management method, the method includes：
Judge whether cell phone system is idle, it immediately should by closing clock and closing power supply two ways if idle
Mobile phone is switched to low power consumpting state；
In baseband system, dynamic power management module is the main undertaker of power saving work, and core is by collecting
The information of system makes necessary judgement, includes the information of operating system, and decision sleep pattern, sleeping time simultaneously pass through calling hardware
Drive under corresponding modes power domain state and clock domain state control.
As a preferred embodiment of the present invention, there are three types of states altogether for the application subsystem of mobile phone, respectively：Work work
State, suspend mode suspend states, free time idle states；
Work work states：There is working condition of the task in execution, it can be to suspend and idle transitions between states；
Suspend mode suspend states：When in work states, system transits to suspend states, and the process of freezing allows peripheral hardware
Into dormant state；When wake events generation then returns to work states；
Idle idle states：It can enter idle states from work when all task runs finish system；When there is wake events
Work states are then returned when generation.
As a preferred embodiment of the present invention, there are three types of states altogether for baseband subsystems, respectively：Work work states,
Sleep sleep states, free time idle states；
Work work states：Referring to base band side has task or interruption executing；
Sleep sleep states：Power saving sleep pattern, according to specific mechanism, there are many sleep pattern types；
Idle idle states：Refer to an abstract concept, only base band is from work states to the transition of sleep states.
As a preferred embodiment of the present invention, described method includes following steps：
Power saving entrance is arranged in base band OS, after base band enters idle, application subsystem state is first inquired, to control
Whether power saving flow can be entered；If state is work, after virtual machine is switched to application subsystem, Linux is carried out
Task scheduling；Enter if Linux tasks at this time are completed and apply idle flows, if having the generation of suspend events, Jiu Huijin at this time
Enter to apply suspend flows；After freezing process and peripheral hardware being allowed to enter a series of dormant state this low-power consumption setting work, using son
System sends the sleep commands appointed in advance by virtual pipe VPIPE to base band, and base band is arranged after receiving this VPIPE order
Application subsystem state is the free time；After base band is again introduced into idle, application subsystem state is inquired, if it is free time, base band
Low-power consumption module starts sleep flow in subsystem, and base band sleeps flow to control chip interior module and peripheral module in phase
The time slot answered enters battery saving mode；It is broadly divided into 4 by the baseband subsystems power-saving control used as modem modem
Point：Physical layer, protocol stack, operating system and hardware driving；Wherein, physical layer is mainly responsible for by the number of protocol stack planning time point
According to measurement task, protocol stack, which is mainly responsible for, calculates next discontinuous reception DRX time of measuring point；At this point, OS does not have task
Scheduling or interrupt processing, are judged as constraints and the time point calculated according to protocol stack and system timer time point carry out
Compare, codetermine and which kind of pattern sleep entered, then carry out system protection and data protection act, then call hardware driving,
It is achieved to modules power-saving control.
As a preferred embodiment of the present invention, the method further includes：
After sleep awakening, it is work to set application subsystem state, and carries out timer compensation；When base band is again gone into
Idle is then switched to Linux；If detection is pending without interrupting generation etc., sent again with sleep instructions
VPIPE orders, notice base band enter sleep, repeatedly；Indicate when needing to wake up in application, removing sleep, sends VPIPE lives
It enables to application；After base band enters idle, it is switched to Linux, Linux, which is detected, interrupts pending, then carries out respective handling.
The beneficial effects of the present invention are：Mobile phone power saving management method proposed by the present invention, can effectively reduce mobile telephone power consumption,
Save mobile phone electric energy, prolonging service method of mobile phone battery.
The present invention proposes a kind of power saving design scheme from operating system level, significantly reduces smart mobile phone power consumption, prolongs
Stand-by time is grown.The realization of the program can be mostly used in the embedded device of similar hardware platform, to power conservation techniques
Development has certain theory significance and realistic meaning.
Description of the drawings
Fig. 1 is the schematic diagram of application subsystem state.
Fig. 2 is the schematic diagram of baseband subsystems state.
Fig. 3 is power down mode modified flow figure of the present invention.
Specific implementation mode
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment one
Referring to Fig. 3, present invention is disclosed a kind of mobile phone power saving management method, there are three types of shapes altogether for the application subsystem of mobile phone
State, respectively：Work work states, suspend mode suspend states, free time idle states, as shown in Figure 1.
Work work states：There is working condition of the task in execution, it can be to suspend and idle transitions between states；
Suspend mode suspend states：When in work states, system transits to suspend states, and the process of freezing allows peripheral hardware
Into dormant state；When wake events generation then returns to work states；
Idle idle states：It can enter idle states from work when all task runs finish system；When there is wake events
Work states are then returned when generation.
There are three types of states altogether for baseband subsystems, respectively：Work work states, sleep sleep states, free time idle shapes
State, as shown in Figure 2.
Work work states：Referring to base band side has task or interruption executing；
Sleep sleep states：Power saving sleep pattern, according to specific mechanism, there are many sleep pattern types；
Idle idle states：Refer to an abstract concept, only base band is from work states to the transition of sleep states.
Described method includes following steps：
Power saving entrance is arranged in base band OS, after base band enters idle, application subsystem state is first inquired, to control
Whether power saving flow can be entered；If state is work, after virtual machine is switched to application subsystem, Linux is carried out
Task scheduling；Enter if Linux tasks at this time are completed and apply idle flows, if having the generation of suspend events, Jiu Huijin at this time
Enter to apply suspend flows；After freezing process and peripheral hardware being allowed to enter a series of dormant state this low-power consumption setting work, using son
System sends the sleep commands appointed in advance by virtual pipe VPIPE to base band, and base band is arranged after receiving this VPIPE order
Application subsystem state is the free time；After base band is again introduced into idle, application subsystem state is inquired, if it is free time, base band
Low-power consumption module starts sleep flow in subsystem, and base band sleeps flow to control chip interior module and peripheral module in phase
The time slot answered enters battery saving mode；It is broadly divided into 4 by the baseband subsystems power-saving control used as modem modem
Point：Physical layer, protocol stack, operating system and hardware driving；Wherein, physical layer is mainly responsible for by the number of protocol stack planning time point
According to measurement task, protocol stack, which is mainly responsible for, calculates next discontinuous reception DRX time of measuring point；At this point, OS does not have task
Scheduling or interrupt processing, are judged as constraints and the time point calculated according to protocol stack and system timer time point carry out
Compare, codetermine and which kind of pattern sleep entered, then carry out system protection and data protection act, then call hardware driving,
It is achieved to modules power-saving control；
After sleep awakening, it is work to set application subsystem state, and carries out timer compensation；When base band is again gone into
Idle is then switched to Linux；If detection is pending without interrupting generation etc., sent again with sleep instructions
VPIPE orders, notice base band enter sleep, repeatedly；Indicate when needing to wake up in application, removing sleep, sends VPIPE lives
It enables to application；After base band enters idle, it is switched to Linux, Linux, which is detected, interrupts pending, then carries out respective handling.
Embodiment two
During intelligent terminal power saving software controls, most effective way is carried out to the voltage and clock frequency of system
Effective low power consumption control management.This programme uses low power dissipation design strategy DPM (dynamic power management).DPM design philosophy letters
It is exactly that the equipment is switched to low work(by system by closing clock and closing power supply two ways immediately if idle for list
Consumption state.Mainly realized by building a software module for power managed on an operating system.
(1) application subsystem state
For application subsystem altogether there are three types of state, transition relationship is as shown in Figure 1.
Work states：There is working condition of the task in execution, it can be to suspend and idle transitions between states.
Suspend states：When in work states, system transits to suspend states, and the process of freezing allows peripheral hardware to enter
Dormant state.When wake events generation then returns to work states.
Idle states：It can enter idle states from work when all task runs finish system；When there is wake events generation
When then return to work states.
(2) baseband subsystems state
For baseband subsystems altogether there are three types of state, transition relationship is as shown in Figure 2.
Sleep states：Power saving sleep pattern, according to specific mechanism, there are many sleep pattern types.
Idle states：Refer to an abstract concept, only base band is from work states to the transition of sleep states.
Work states：Referring to base band side has task or interruption executing.
In the present solution, system power saving entrance is arranged in base band OS, after base band enters idle, application subsystem is first inquired
State, to control whether that power saving flow can be entered.If state be work, by virtual machine be switched to application subsystem it
Afterwards, Linux carries out task scheduling.Enter if Linux tasks at this time are completed and apply idle flows, if there are suspend things at this time
Part generates, and will enter and apply suspend flows.Freeze process and peripheral hardware is allowed to enter a series of dormant state this low-power consumption setting
After work, application subsystem sends the sleep commands appointed in advance by virtual pipe (VPIPE) to base band, and base band receives this
It is the free time that application subsystem state is arranged after VPIPE orders.After base band is again introduced into idle, application subsystem state is inquired,
If it is the free time, low-power consumption module starts sleep flow in baseband subsystems, and base band sleeps flow to control chip interior module
And peripheral module enters battery saving mode in corresponding time slot.The baseband subsystems used as modem (modem)
Power-saving control is broadly divided into 4 parts：Physical layer, protocol stack, operating system and hardware driving.Wherein physical layer is mainly responsible for by assisting
Discuss stack planning time point DATA REASONING task, protocol stack be mainly responsible for calculate next DRX (discontinuous reception) measure when
Between point.At this point, OS does not have task scheduling or interrupt processing, be judged as constraints and time point for being calculated according to protocol stack and
System timer time point is compared, and codetermines and enter the sleep of which kind of pattern, then carry out data protection, wake up setting etc. one
Serial system is protected and data protection act, then calls hardware driving, is achieved to modules power-saving control.
After sleep awakening, it is work to set application subsystem state, and carries out timer compensation.When base band is again gone into
Idle is then switched to Linux.If detection is pending without interrupting generation etc., sent again with sleep instructions
VPIPE orders, notice base band enter sleep, repeatedly.Indicate when needing to wake up in application, removing sleep, sends VPIPE lives
It enables to application.After base band enters idle, it is switched to Linux, Linux, which is detected, interrupts pending, then carries out respective handling.
The flow of its power down mode variation is as shown in Figure 3.
In conclusion mobile phone power saving management method proposed by the present invention, can effectively reduce mobile telephone power consumption, mobile phone electricity is saved
Can, prolonging service method of mobile phone battery.
The present invention proposes a kind of power saving design scheme from operating system level, significantly reduces smart mobile phone power consumption, prolongs
Stand-by time is grown.The realization of the program can be mostly used in the embedded device of similar hardware platform, to power conservation techniques
Development has certain theory significance and realistic meaning.
Description and application of the invention herein are illustrative, is not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, real for those skilled in the art
The replacement and equivalent various parts for applying example are well known.It should be appreciated by the person skilled in the art that not departing from the present invention
Spirit or essential characteristics in the case of, the present invention can in other forms, structure, arrangement, ratio, and with other components,
Material and component are realized.Without departing from the scope and spirit of the present invention, can to embodiments disclosed herein into
The other deformations of row and change.
Claims (5)
1. a kind of mobile phone power saving management method, it is characterised in that：
There are three types of states altogether for the application subsystem of mobile phone, respectively：Work work states, suspend mode suspend states, free time idle
State；
Work work states：There is working condition of the task in execution, it can be to suspend and idle transitions between states；
Suspend mode suspend states：When in work states, system transits to suspend states, and the process of freezing allows peripheral hardware to enter
Dormant state；When wake events generation then returns to work states；
Idle idle states：It can enter idle states from work when all task runs finish system；When there is wake events generation
When then return to work states；
There are three types of states altogether for baseband subsystems, respectively：Work work states, sleep sleep states, free time idle states；
Work work states：Referring to base band side has task or interruption executing；
Sleep sleep states：Power saving sleep pattern, according to specific mechanism, there are many sleep pattern types；
Idle idle states：Refer to an abstract concept, only base band is from work states to the transition of sleep states；
Described method includes following steps：
Power saving entrance is arranged in base band OS, after base band enters idle, application subsystem state is first inquired, to control whether
Power saving flow can be entered；If the state of application subsystem is work, after virtual machine is switched to application subsystem,
Linux carries out task scheduling；Enter if Linux tasks at this time are completed and apply idle flows, if there is the production of suspend events at this time
It is raw, it will enter and apply suspend flows；Freeze process and peripheral hardware is allowed to enter a series of dormant state this low-power consumption setting work
Afterwards, application subsystem sends the sleep commands appointed in advance by virtual pipe VPIPE to base band, and base band receives this VPIPE
It is the free time that application subsystem state is arranged after order；After base band is again introduced into idle, application subsystem state is inquired, if it is
Free time, low-power consumption module starts sleep flow in baseband subsystems, and base band sleeps flow to control chip interior module and outer
If module enters battery saving mode in corresponding time slot；The baseband subsystems power-saving control used as modem modem
It is broadly divided into 4 parts：Physical layer, protocol stack, operating system and hardware driving；Wherein, physical layer is mainly responsible for is advised by protocol stack
The DATA REASONING task at time point is drawn, protocol stack, which is mainly responsible for, calculates next discontinuous reception DRX time of measuring point；This
When, OS does not have task scheduling or interrupt processing, is judged as constraints and the time point calculated according to protocol stack and system are determined
When device time point be compared, codetermine and enter the sleep of which kind of pattern, then carry out system protection and data protection act, then
Hardware driving is called, is achieved to modules power-saving control；
After sleep awakening, it is work to set application subsystem state, and carries out timer compensation；When base band again goes into idle,
Then it is switched to Linux；If detection is pending without interrupting generation etc., the VPIPE lives with sleep instructions are sent again
It enables, notice base band enters sleep, repeatedly；When needing to wake up in application, remove sleep mark, VPIPE orders are sent to answering
With；After base band enters idle, it is switched to Linux, Linux, which is detected, interrupts pending, then carries out respective handling.
2. a kind of mobile phone power saving management method, which is characterized in that the method includes：
Judge whether cell phone system is idle, immediately by closing clock and closing power supply two ways by the mobile phone if idle
It is switched to low power consumpting state；
In baseband system, dynamic power management module is the main undertaker of power saving work, and core passes through collection system
Information makes necessary judgement, includes the information of operating system, and decision sleep pattern, sleeping time simultaneously pass through calling hardware driving
To under corresponding modes power domain state and clock domain state control；
Power saving entrance is arranged in base band OS, after base band enters idle, application subsystem state is first inquired, to control whether
Power saving flow can be entered；If the state of application subsystem is work, after virtual machine is switched to application subsystem,
Linux carries out task scheduling；Enter if Linux tasks at this time are completed and apply idle flows, if there is the production of suspend events at this time
It is raw, it will enter and apply suspend flows；Freeze process and peripheral hardware is allowed to enter a series of dormant state this low-power consumption setting work
Afterwards, application subsystem sends the sleep commands appointed in advance by virtual pipe VPIPE to base band, and base band receives this VPIPE
It is the free time that application subsystem state is arranged after order；After base band is again introduced into idle, application subsystem state is inquired, if it is
Free time, low-power consumption module starts sleep flow in baseband subsystems, and base band sleeps flow to control chip interior module and outer
If module enters battery saving mode in corresponding time slot；The baseband subsystems power-saving control used as modem modem
It is broadly divided into 4 parts：Physical layer, protocol stack, operating system and hardware driving；Wherein, physical layer is mainly responsible for is advised by protocol stack
The DATA REASONING task at time point is drawn, protocol stack, which is mainly responsible for, calculates next discontinuous reception DRX time of measuring point；This
When, OS does not have task scheduling or interrupt processing, is judged as constraints and the time point calculated according to protocol stack and system are determined
When device time point be compared, codetermine and enter the sleep of which kind of pattern, then carry out system protection and data protection act, then
Hardware driving is called, is achieved to modules power-saving control.
3. mobile phone power saving management method according to claim 2, it is characterised in that：
There are three types of states altogether for the application subsystem of mobile phone, respectively：Work work states, suspend mode suspend states, free time idle
State；
Work work states：There is working condition of the task in execution, it can be to suspend and idle transitions between states；
Suspend mode suspend states：When in work states, system transits to suspend states, and the process of freezing allows peripheral hardware to enter
Dormant state；When wake events generation then returns to work states；
Idle idle states：It can enter idle states from work when all task runs finish system；When there is wake events generation
When then return to work states.
4. mobile phone power saving management method according to claim 2, it is characterised in that：
There are three types of states altogether for baseband subsystems, respectively：Work work states, sleep sleep states, free time idle states；
Work work states：Referring to base band side has task or interruption executing；
Sleep sleep states：Power saving sleep pattern, according to specific mechanism, there are many sleep pattern types；
Idle idle states：Refer to an abstract concept, only base band is from work states to the transition of sleep states.
5. mobile phone power saving management method according to claim 1, it is characterised in that：
The method further includes：
After sleep awakening, it is work to set application subsystem state, and carries out timer compensation；When base band again goes into idle,
Then it is switched to Linux；If detection is pending without interrupting generation etc., the VPIPE lives with sleep instructions are sent again
It enables, notice base band enters sleep, repeatedly；When needing to wake up in application, remove sleep mark, VPIPE orders are sent to answering
With；After base band enters idle, it is switched to Linux, Linux, which is detected, interrupts pending, then carries out respective handling.
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| CN110012522A (en) * | 2018-01-05 | 2019-07-12 | 中国移动通信有限公司研究院 | A kind of control method and communication equipment of communication equipment |
| CN110032397B (en) * | 2018-01-10 | 2023-01-31 | Oppo广东移动通信有限公司 | Application processing method and device, electronic equipment and computer readable storage medium |
| CN113722044A (en) * | 2020-05-26 | 2021-11-30 | 合肥杰发科技有限公司 | Standby and awakening processing method of virtualization system and virtual machine |
| CN117008980A (en) * | 2022-04-29 | 2023-11-07 | 华为技术有限公司 | System dormancy method and device, and system wakeup method and device |
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| CN1645955A (en) * | 2005-01-17 | 2005-07-27 | 上海贝豪通讯电子有限公司 | Power supply managing and electricity saving method for TD-SCDMA mobile phone |
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