CN101237656B - Method for improving terminal service duration and terminal device using this method - Google Patents
Method for improving terminal service duration and terminal device using this method Download PDFInfo
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- CN101237656B CN101237656B CN2008100852326A CN200810085232A CN101237656B CN 101237656 B CN101237656 B CN 101237656B CN 2008100852326 A CN2008100852326 A CN 2008100852326A CN 200810085232 A CN200810085232 A CN 200810085232A CN 101237656 B CN101237656 B CN 101237656B
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Abstract
The invention discloses a time for improving terminal service duration and a device using the method. The method adopts real-time monitoring to the load idle time of a processor in a wireless mobile communication terminal, regularly estimates the load idle rate of the processor, produces the clock frequency used to adjust the processor and an instruct for a supply voltage compared with the desired value of the load idle rate which is preset to assure the steady operation of the processor, dynamically adjusts the clock frequency and the supply voltage of the processor, can reasonably control a power supply of the mobile communication terminal, and improve the service duration of the wireless mobile communication terminal.
Description
Technical field
The present invention relates to the cell phone is the mobile communication terminal field of representative, relates to a kind of device that can improve the method for professional duration of mobile communication terminal and use this method in particular.
Background technology
At present, mobile communication technology from existing be that the second generation GSM of representative developed into WCDMA, TD-SCDMA and CDMA2000 with GSM and CDMA be the 3-G (Generation Three mobile communication system) of standard.The 3-G (Generation Three mobile communication system) network capacity is big, can satisfy the professional quality of service request of mass data, and support, is with a wide range of applications to multimedia service from speech, grouped data.
Adapt with it, mobile communication terminal also will from provide speech and the low speed data function be that master's equipment is to the equipment development that sophisticated functionss such as speech, high-speed data and multimedia are provided.Be the large-data operation of supporting that these are complicated, that has generally adopted at the 3G (Third Generation) Moblie terminal is advanced, at a high speed, high performance flush bonding processor.When mobile communication terminal adopts these high-performance processors, the contradiction of the limited flying power of used battery in the high power consumption of also having brought processor and the mobile communication terminal, this becomes the problem that the professional duration faced of raising mobile communication terminal.
Improving the professional duration of mobile communication terminal can consider from " increasing income " and " throttling " two aspects." increasing income " promptly is the power supply deliverability of increase equipment, and " throttling " then is the power consumption that reduces mobile communication terminal self.
Increasing battery capacity is a kind of " increasing income " method.Though battery technology has been made significant headway, battery life prolongs to some extent, and the volume of same battery capacity reduces or the like to some extent.But these variations can not be satisfied the energy requirement that the next-generation mobile communications terminal increases rapidly.The cost and the physical size of its meeting appreciable impact mobile communication terminal are opposing to littler lighter effort trend at present with mobile communication terminal on the one hand, also do not meet the aim of environmental protection on the other hand.
Therefore, from " throttling " angle, the power consumption how research reduces mobile communication terminal self is the important channel of improving the professional duration of mobile communication terminal.
As everyone knows, energy equals power and multiply by the time.For the mobile communication terminal application scenario, under the specified situation of battery capacity (being gross energy), the power consumption the during bearer service of terminal is few more, and the professional duration will be long more.And the electrical power of electronic cost, be proportional to the supply power voltage that loads its two ends square.Through reducing the supply power voltage of mobile communication terminal electronic device, its power consumption is reduced by square-law, thereby will prolong the professional duration of whole terminal.
Although processor possibly not be a device of power consumption in the mobile communication terminal, the power consumption of processor still is appreciable in present most of mobile communication terminals.Manage the energy consumption of processor, can increase the energy of the components and parts (for example: LCD display, keyboard etc.) that are used for other function indirectly.For example; The mobile communication terminal processor needs higher performance than 12.2kbps voice service when the 64kbps visual telephone service is provided; Therefore mobile communication terminal is when providing the 12.2kbps voice service; Its processor may operate in lower clock frequency, still can obtain satisfied communication effect.Operate under the lower situation in the sort processor clock frequency,, bring the prolongation of professional duration through the energy consumption that the supply power voltage that reduces processor just can be saved battery.
In the power conservation techniques of existing mobile communication terminal, people mainly realize the low-power consumption of terminal under holding state through use low-power consumption idle mode and sleep pattern, thereby prolong the stand-by time at terminal, and then prolong the professional duration at terminal.Usually; Can deal with the miscellaneous service demand that it is supported in order to ensure mobile communication terminal, its processor operates on the higher clock frequency, has the high processing ability; The electric energy that corresponding consumption is more, this is a kind of great waste when it handles lower data amount business.For example; For the 12.2kbps voice service; See from the angle of guaranteeing service quality; Software in the mobile communication terminal only need be accomplished the Code And Decode of a frame voice data in 20ms, such can just accomplish such computing in the time less than 5ms not reducing under the processor clock frequency situation processor.Because during mobile communication terminal call, if being changed to sleep pattern, its processor realizes that the low-power consumption at terminal is and difficulty, at this moment the high performance computation ability is provided is unnecessary to processor.And to keep the superior performance operational capability of processor, need higher clock frequency, and the peak value operating frequency of processor is proportional to its supply power voltage, thereby causes the waste of the energy content of battery.
Summary of the invention
The objective of the invention is to; The method of a kind of raising terminal traffic duration that is used for radio mobile communication terminal is provided and uses the device of this method; Make processor in the mobile communication terminal according to its current live load situation; Through clock frequency and the supply power voltage of controlling its core, it is operated on the performance level that adapts most with its traffic carrying capacity of supporting, to reduce unnecessary energy loss.
The present invention provides a kind of method that improves the terminal traffic duration, is used for radio mobile communication terminal, it is characterized in that; Comprise: steps A, load free time of processor is monitored step B in real time; Regularly calculate the load idleness that obtains above-mentioned processor according to preset evaluation interval and monitoring in real time resulting free time; Step C compares step D with the load idleness of processor and desired value and the threshold value of presetting; The load idleness of above-mentioned processor greater than above-mentioned desired value and threshold value and the time; The supply power voltage of rising processor and clock frequency during less than above-mentioned desired value and threshold value poor, reduce the supply power voltage and the clock frequency of processor at the load idleness of above-mentioned processor; During less than threshold value, do not change the supply power voltage and the clock frequency of above-mentioned processor at the absolute value of the difference of the load idleness of above-mentioned processor and above-mentioned desired value; Repeat above-mentioned steps A～D.
In addition; The present invention provides a kind of device that improves the terminal traffic duration; Be used for radio mobile communication terminal, tool is characterised in that, comprising: be used for unit that load free time of processor is monitored in real time; Be used for regularly calculating the unit of the load idleness that obtains above-mentioned processor according to preset evaluation interval and monitoring in real time resulting free time; Be used for the load idleness of above-mentioned processor and the unit that preset desired value and threshold value compare, be used for the load idleness of above-mentioned processor greater than above-mentioned desired value and threshold value and the time, the supply power voltage of the above-mentioned processor that raises and clock frequency; At the load idleness of above-mentioned processor during less than above-mentioned desired value and threshold value poor; Reduce the supply power voltage and the clock frequency of above-mentioned processor, during less than threshold value, do not change the supply power voltage of above-mentioned processor and the unit of clock frequency at the absolute value of the difference of the load idleness of above-mentioned processor and above-mentioned desired value.
Through foregoing invention, the operational capability of processor is more leveled off to just satisfy the software required operational capability level of operation on it, operating efficiency is higher, and through adjustment voltage, has played the effect of power saving, thereby can improve the professional duration at terminal.
In addition, can realize said method, thereby have simple, easy row, low-cost, high-performance, the advantage of aspects such as flexible practicality through processor.
Description of drawings
Fig. 1 is the flow chart of the method for raising terminal traffic duration of the present invention.
Fig. 2 is the mobile communication terminal theory diagram that the method for raising terminal traffic duration of the present invention is used in expression.
Fig. 3 is the concrete workflow diagram of the mobile communication terminal among Fig. 2.
Fig. 4 is the work comparison diagram of mobile communication terminal of mobile communication terminal and the prior art of the expression method of using the raising terminal traffic duration of the present invention.
Fig. 5 is other mobile communication terminal theory diagrams that the method for raising terminal traffic duration of the present invention is used in expression.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention is described in detail.
The method of raising terminal traffic duration of the present invention is as shown in Figure 1.
At first, processor load free time is monitored in real time.For example can monitor in real time the free time of processor, add up just can obtain it through the time that longer sampling interval inner treater is in idle condition in this section free time in period with certain sampling rate.
Then, regularly the processor load idleness is calculated.For example can be at a certain time interval the idleness of processor be carried out evaluates calculation, evaluation interval is generally the integral multiple in sampling interval.
Then, processor load idleness and preset desired value and threshold value are compared.Here preset desired value and threshold value can be the Default Values of terminal installation, also can when the terminal installation energized, be provided with by processor, perhaps can be by the user directly to the terminal installation setting.
Then, according to comparative result, dynamically adjust the supply power voltage of processor.The processor load idleness greater than desired value and threshold value and the time, the supply power voltage of rising processor; During less than desired value and threshold value poor, reduce the supply power voltage of processor at the processor load idleness; During less than threshold value, do not change the supply power voltage of processor at the absolute value of the difference of processor load idleness and desired value.And, on the basis of the supply power voltage of dynamically adjusting processor, can also dynamically adjust the clock frequency of processor with above-mentioned mode.
Above-mentioned each processing is carried out in circulation.Thus; Make the operational capability of processor more level off to just to satisfy the software required operational capability level of operation on it, processor utilization is higher, and through adjustment supply power voltage and clock frequency; Play the effect of power saving, thereby can improve the professional duration at terminal.
Below, an execution mode of the mobile communication terminal of the method for using the raising terminal traffic duration of the present invention is described.
Use the mobile communication terminal structural principle block diagram of method of raising terminal traffic duration of the present invention as shown in Figure 1.This mobile communication terminal is by constituting with lower unit: processor unit U1, clock generating unit U2, PMU U3, free time collecting unit U4, idleness computing unit U5 and performance synthesis control unit U6.
The concrete function of each several part is explained as follows:
Processor unit U1: each task of carrying out mobile communication terminal device.
Clock generating unit U2: as input, produce and the needed various clock signals of the normal operation in inner each unit of distribution confession mobile communication terminal device with reference clock source C.The frequency of these clock signals (speed in other words) can be come change through the inner related register of configuration U2 by software, with clock signal that hope frequency is provided to corresponding hardware capability unit.In the present invention, utilize the inner relevant configuration register of clock generating unit U2 to come the clock frequency of processor controls.
PMU U3:, produce and the needed various supply power voltages of the normal operation of distribution confession mobile communication terminal device internal element through DC power supply V (in handheld device, being generally battery).In these supply power voltages, some is fixed, and some then can come change through the inner related register of configuration U3 by software, to provide the supply power voltage of hoping voltage to corresponding hardware capability unit.In the present invention, utilize the related register of PMU U3 internal configurations to control the supply power voltage of supplying with processor.
Free time collecting unit U4: the free time ti of processor is monitored in real time with certain sampling rate Fs (being its sampling interval Ts=1/Fs).Monitoring begins idle to carry out when idle with finishing at processor, and establishing certain second processor to begin the idle moment be t1, finish the idle moment is t2, and then this time that is in idle condition of processor is t2-t1.Add up through the time that longer sampling interval Ts inner treater is in idle condition and just can obtain it at this section free time ti in period.
Idleness computing unit U5: Te carries out evaluates calculation to the idleness Ri of processor at a certain time interval.Evaluation interval is generally the integral multiple in sampling interval, i.e. Te=N*Ts=N/Fs, then Ri=∑ ti/ (N*Ts).
Performance synthesis control unit U6: the processor that will obtain by idleness computing unit U5 in the current assessment phase idleness Ri with compare at the expectation idleness level value Re that sets in advance; If current idleness Ri greater than expectation idleness Re and control threshold value Δ with; Then generate the instruction that clock frequency and supply power voltage with processor reduce simultaneously, and should instruct and be sent to clock generating unit U2 and PMU U3 respectively; If current idleness Ri is poor less than expectation idleness Re and control threshold value Δ, then generates the instruction that clock frequency and supply power voltage with processor improve simultaneously, and should instruct and be sent to clock generating unit U2 and PMU U3 respectively; If current idleness Ri is not more than control threshold value Δ with the absolute value of expectation idleness Re difference, then do not generate the adjustment instruction of clock frequency and supply power voltage, keep the clock frequency and the supply power voltage of processor constant.
Use the workflow of mobile communication terminal of method of raising terminal traffic duration of the present invention as shown in Figure 2.
After the mobile communication terminal device start; Processor unit U1 sets relevant parameter; These parameters are: the aspiration level value Re of processor load idleness, control threshold value Δ, the sampling rate Fs (being its sampling interval Ts=1/Fs) of processor load free time; The evaluation interval parameter N of processor load idleness (evaluation interval is generally got the integral multiple in sampling interval, i.e. Te=N*Ts=N/Fs) (step 1).
At first, processor load free time is monitored (step 1～8) in real time.
At the place that begins of each assessment cycle, with metering variable n and processor load free time ti zero clearing (step 1).
Running status to processor is kept watch on, and writes down each processor and gets into the moment t1 of idle condition and moment t2 (value of t1 and t2 is taken from high-resolution the timer unit) (step 2～step 5) that processor exits from idle status.In the moment that processor exits from idle status, except that record moment t2, also the value according to t1 and t2 calculates the time (being the difference of t2 and t1) that this second processor is in idle condition, and adds up with interior free time in the past of this assessment cycle.
Judge and whether arrive sampling instant (step 6), sampling instant to before (being judged as " denying " in the step 6), continuation is kept watch on the running status of processor.When sampling instant then (is judged as " being ") in the step 6; Metering variable n is increased 1 (being n=n+1) (step 7); Then itself and evaluation interval parameter N are compared (step 8); If n is not equal to N (being judged as " denying " in the step 8), promptly the evaluation time does not arrive, and continues the running status of processor is kept watch on by top description.
Then, regularly the processor load idleness is calculated (step 9).When n equals N, (be judged as " being " in the step 8), then the evaluation time arrives, according to the evaluation interval Te and the processor free time ti computation-free rate of adding up in assessment cycle: Ri=ti/ (N*Ts)=(Fs*ti)/N.
Then, processor load idleness and preset desired value and threshold value are compared (step 10).Specifically; The idleness Re of the idleness Ri of the processor that calculates in the current assessment phase and the expectation that sets is compared (step 10); If current idleness Ri greater than expectation idleness Re and control threshold value Δ with, then the clock frequency of processor is pressed the long reduction simultaneously of pacing (step 11) with supply power voltage; If current idleness Ri is poor less than expectation idleness Re and control threshold value Δ, then clock frequency and the supply power voltage with processor improves (step 12) simultaneously by raising step-length; If current idleness Ri is not more than control threshold value Δ with the absolute value of expectation idleness Re difference, then keep the clock frequency of processor and supply power voltage constant.
Repeat above-mentioned monitoring, calculating, comparison and to the clock frequency of processor and the dynamic adjustment process of supply power voltage to the processor idleness; Make processor run on best performance level; Just can reach the processor ability of rationally utilizing, reduce power consumption, prolong the purpose of professional duration.
Fig. 4 is the work comparison diagram of mobile communication terminal of mobile communication terminal and the prior art of the expression method of using the raising terminal traffic duration of the present invention; Wherein, Transverse axis express time, the longitudinal axis are represented the residing state of processor (executing the task or the free time), and; Heavy line is represented the processor operation, and fine dotted line representes that processor is idle.Fig. 4 representes on top that processor in the prior art is operated in the situation of upper frequency, and idleness is 80.6%; The processor that voltage is represented to have reduced among the present invention in the bottom is operated in the situation of lower frequency, and idleness is 66.7%.Can know that by Fig. 4 for identical task, the idleness of processor under low frequency that reduces voltage is low; The operational capability of processor more levels off to and just satisfies the required operational capability level of moving on it of software; Utilance is higher, and because voltage reduces, has played the effect of power saving.
Fig. 5 is other mobile communication terminal theory diagrams that the method for raising terminal traffic duration of the present invention is used in expression.
In the mobile communication terminal of Fig. 5; Have clock generating unit U2 and PMU U3 equally with Fig. 2; And has other hardware that constitutes mobile communication terminal, for example: radio-frequency front-end, transceiver, modulator-demodulator, base band multimedia coprocessor, internal memory, LCD display, keyboard, SIM, loud speaker, microphone and other input, output, storage, interface equipment etc.In addition, replace the processor unit U1 among Fig. 2 and have processor unit U1 ', this processor unit U1 ' comprises basic task module M0, free time acquisition module M4, idleness computing module M5, performance synthesis control module M6.Processor unit U1 ' also passes through the processing of free time collecting unit U4, idleness computing unit U5 and performance synthesis control unit U6 in free time acquisition module M4, idleness computing module M5, the performance synthesis control module M6 execution graph 2 through each task that basic task module M0 (comprise and operate in all software modules in the processor: operating system, hardware drive program, communication protocol stack software, man-machine interaction program, lteral data graph image multimedia messages are handled application etc.) carries out mobile communication terminal device.Owing to realize the method for raising terminal traffic duration of the present invention through processor self, thus have simple, be prone to row, low-cost, high-performance, the advantage of aspect such as practicality flexibly, and can make mobile communication terminal miniaturization more.
Claims (4)
1. a method that improves the terminal traffic duration is used for radio mobile communication terminal, it is characterized in that, comprising:
Step (A) is monitored load free time of processor in real time,
Step (B) is regularly calculated the load idleness that obtains above-mentioned processor according to preset evaluation interval and monitoring in real time resulting free time,
Step (C) compares the load idleness of above-mentioned processor and desired value and the threshold value of presetting,
Step (D); The load idleness of above-mentioned processor greater than above-mentioned desired value and threshold value and the time; Reduce the supply power voltage and the clock frequency of above-mentioned processor, at the load idleness of above-mentioned processor during less than above-mentioned desired value and threshold value poor, the supply power voltage of the above-mentioned processor that raises and clock frequency; During less than threshold value, do not change the supply power voltage and the clock frequency of above-mentioned processor at the absolute value of the difference of the load idleness of above-mentioned processor and above-mentioned desired value;
Repeat above-mentioned steps (A)～(D).
2. the method for raising terminal traffic duration as claimed in claim 1 is characterized in that,
In above-mentioned steps (D), can adopt different step-lengths with reducing for the supply power voltage of above-mentioned processor and the rising of clock frequency.
3. a device that improves the terminal traffic duration is used for radio mobile communication terminal, and tool is characterised in that, comprising:
Be used for unit that load free time of processor is monitored in real time,
Be used for regularly calculating the unit of the load idleness that obtains above-mentioned processor according to preset evaluation interval and monitoring in real time resulting free time,
Be used for unit that the load idleness of above-mentioned processor and preset desired value and threshold value are compared,
Be used for the load idleness of above-mentioned processor greater than above-mentioned desired value and threshold value and the time; Reduce the supply power voltage and the clock frequency of above-mentioned processor; At the load idleness of above-mentioned processor during less than above-mentioned desired value and threshold value poor; The raise supply power voltage and the clock frequency of above-mentioned processor during less than threshold value, do not change the supply power voltage of above-mentioned processor and the unit of clock frequency at the absolute value of the difference of the load idleness of above-mentioned processor and above-mentioned desired value.
4. the device of raising terminal traffic duration as claimed in claim 3 is characterized in that,
Can adopt different step-lengths to the supply power voltage of above-mentioned processor and the rising of clock frequency with reducing.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102413387A (en) * | 2011-11-09 | 2012-04-11 | 华为技术有限公司 | Method and device for processing data of passive optical network system and passive optical network system |
| CN104243720A (en) * | 2013-06-24 | 2014-12-24 | 中兴通讯股份有限公司 | Electricity saving method of terminal device and terminal device |
| CN105791600A (en) * | 2014-12-24 | 2016-07-20 | 扬州新讯科技有限公司 | Smartphone frequency and voltage adjustable power management module based on multi-core architecture |
| US9996138B2 (en) * | 2015-09-04 | 2018-06-12 | Mediatek Inc. | Electronic system and related clock managing method |
| CN106815077B (en) * | 2016-12-30 | 2020-03-17 | Oppo广东移动通信有限公司 | Data processing method based on intelligent device architecture and intelligent device |
| US11704554B2 (en) * | 2019-05-06 | 2023-07-18 | Baidu Usa Llc | Automated training data extraction method for dynamic models for autonomous driving vehicles |
| CN110278603B (en) * | 2019-06-20 | 2022-02-11 | 重庆邮电大学 | Method for adjusting dynamic power consumption of mobile terminal |
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