CN1531362A - Sequential controlling method for electric-saving mode of mobile communication device - Google Patents
Sequential controlling method for electric-saving mode of mobile communication device Download PDFInfo
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- CN1531362A CN1531362A CNA031205720A CN03120572A CN1531362A CN 1531362 A CN1531362 A CN 1531362A CN A031205720 A CNA031205720 A CN A031205720A CN 03120572 A CN03120572 A CN 03120572A CN 1531362 A CN1531362 A CN 1531362A
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- 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
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- 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
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Abstract
The sequential control method for power-saving mode of mobile communication device, the mobile communication device is applied in time division multiply access and takes wireless communication with base station through the frame, the sequential control method includes: carrying out a synchronized control program to interrupt the other control program of the loaded real time operation system currently, and calculates a reserved power-saving period of the executable power-saving mode, executes this synchronized control program to drive this mobile communication device entering this power saving mode in the actual power saving period, and executes this synchronized control program to adjust the sequential of mobile communication device synchronizing with the sequential of the base station according to the actual power-saving period.
Description
Technical field
The present invention relates to a kind of sequential control method of device for mobile communication, particularly a kind of sequential control method to battery saving mode that should device for mobile communication.
Background technology
For known wireless telecommunication system, it consists predominantly of a plurality of base stations (base station), the then corresponding communications zone in each base station (cell), the signal that is used for controlling a plurality of device for mobile communication (mobile unit) that are arranged in this communications zone receives and the signal transmission, these a plurality of device for mobile communication then major part are the communication device of portable (portable), for instance, at a pan-European Digital Cellular System (global system for mobile communications, GSM) in, above-mentioned device for mobile communication then is a hand phone (cellular phone), and for this mobile phone is easy to carry to provide the user to live more easily, therefore this mobile phone all uses rechargeable type battery (rechargeablebattery) to provide this mobile phone required operating voltage at present, because the power capacity of this rechargeable type battery itself is limited, if the bigger rechargeable type battery of electrification capacity is to increase the operating time of this mobile phone, yet this rechargeable type battery can increase the volume and the weight of this mobile phone simultaneously, therefore can cause this mobile phone not portable, become important topic so how to reduce the power consumption of this mobile phone, when the power consumption of this mobile phone reduces, then do not influencing under original operating time, then but the electrification capacity is less for this mobile phone, volume is little, and lightweight rechargeable type battery is manipulated with the user that is more convenient for.
In order to reduce the power consumption of this mobile phone, therefore known technology is to make this mobile phone carry out a battery saving mode (sleep mode) to save the power consumption of this mobile phone, for example work as this mobile phone and do not transmit or receive signal, and its user does not operate this mobile phone and when making this mobile phone be in idle state, if this mobile phone does not need a clock signal to drive to carry out relevant running in a scheduled time slot, therefore this mobile phone just can enter a battery saving mode and reduces unnecessary power consumption with the driving that stops this clock signal, so this mobile phone just can reach purpose of power saving, yet, pan-European as is known in the industry Digital Cellular System, it is the known time division multiple access of utilization (time divisionmultiple access, TDMA) system carries out the signal transmission, so the sequential of this device for mobile communication (timing) must just can successfully receive and transmit signal synchronously with the sequential of this corresponding base station, known wireless telecommunication system can transmit calling signal (paging signal) to this device for mobile communication has a calling (incoming call) to inform this device for mobile communication, therefore the sequential of this device for mobile communication must just can correctly receive this calling signal with this base station synchronization, so even this device for mobile communication enters this sleep state to save electric power, according to known wireless telecommunication system, this device for mobile communication still must regularly reply whether transmit this calling signal to detect this wireless telecommunication system by this sleep state, so when this device for mobile communication finished this sleep state, it must reply its sequential so that synchronous with the sequential of known wireless telecommunication system.
See also Fig. 1, Fig. 1 is the circuit diagram of known device for mobile communication 40.Device for mobile communication 40 includes an antenna (antenna) 42, one transceiver (transceiver) 44, one sequential generator (timinggenerator) 46, one microprocessor (micro-controller) 48, one clock generator (clockgenerator) 50, an and memory 52, antenna 42 can receive the radio frequency (radiofrequency that a base station 41 is exported, RF) signal, and the radio-frequency (RF) signal that device for mobile communication 40 is exported is passed to base station 41, and transceiver 44 can be converted to the radio-frequency (RF) signal that export base station 41 fundamental frequency (baseband) signal of low frequency and export microprocessor 48 to, and the baseband signal that microprocessor 48 is exported is converted to the radio-frequency (RF) signal of high frequency and via antenna 42 output, microprocessor 48 is stored real time operating system (the real-time operating system of execute store 52, RTOS) 54 overall operations of controlling device for mobile communication 40, that is microprocessor 48 can be handled controlling signal (control siganl) and the information signal (information signal) that transmit base station 41, and the controlling signal and the information signal of device for mobile communication 40 be passed to base station 41, wherein controlling signal is to be used for setting applied communications protocol between device for mobile communication 40 and the base station 41, the information signal is speech sound signal (speech signal) or the data signals (data signal) for transmitting between first speaker and the person who accepts then, clock generator 50 then is to be used for producing a system clock CLK to drive microprocessor 48 these device for mobile communication 40 of control, in addition, clock generator 46 also produces the sequential of sequential that sequential signal (timing signal) controls device for mobile communication 40 and base station 41 synchronously so that its transceiver 44 can be transmitted and the reception signal according to this system clock CLK.
See also Fig. 2, Fig. 2 is the operational flowchart that device for mobile communication 40 shown in Figure 1 is carried out battery saving mode.Device for mobile communication 40 is carried out battery saving mode and is included the following step:
Step 100: beginning;
Step 102: carry out a power saving hypervisor 56;
Step 104: check that via power saving hypervisor 56 device for mobile communication 40 is in an idle state (idle mode)? if then execution in step 106, otherwise execution in step 120;
Step 106: calculate the predetermined time of implementation that device for mobile communication 40 can be carried out this battery saving mode via power saving hypervisor 56;
Step 108: device for mobile communication 40 enters battery saving mode;
Step 110: before the system clock drives interrupts microprocessor 48 of device for mobile communication 40, carry out a sequential control program 58;
Step 112: detect device for mobile communication 40 via timing control program 58 and be subjected to external event triggering and abandon carrying out (abort) this battery saving mode? if then execution in step 118, otherwise execution in step 114;
Step 114: calculate the actual execution time that device for mobile communication 40 is carried out this battery saving mode via timing control program 58;
Step 116: replying the sequential of device for mobile communication 40, and make the sequential of the sequential of device for mobile communication 40 and base station 41 synchronous via timing control program 58 control timing generators 46;
Step 118: finish timing control program 58;
Step 120: finish power saving hypervisor 56;
Step 122: finish.
As previously mentioned, microprocessor 48 is carried out the running that real time operating system 54 is controlled device for mobile communication 40, when microprocessor 48 is carried out a power saving hypervisor 56, can enter this battery saving mode interrupts device for mobile communication 40 to stop this system clock CLK to drive this microprocessor 48 running via power saving hypervisor 56 control device for mobile communication 40, according to known technology, the work (task) of power saving hypervisor 56 for having minimum execution priority (lowest priority), therefore when power saving hypervisor 56 can be carried out (step 102) by microprocessor 48, represent that promptly other work with higher execution priority all are in idle state, in other words, device for mobile communication 40 promptly is in idle state (step 104) at this moment, power saving hypervisor then 56 just can be calculated the predetermined time of implementation (step 106) that device for mobile communication 40 can be carried out this battery saving mode by the information that real time operating system 54 is provided, power saving hypervisor then 56 begins to control clock generator 50 and drives device for mobile communication 40 (step 108) with halt system clock CLK, and before the system clock drives interrupts microprocessor 48 of device for mobile communication 40, microprocessor 48 can be carried out a sequential control program 58 (step 110), it is a break in service (interruptservice routine, ISR), timing control program 58 detects device for mobile communication 40 and whether is subjected to external event triggering and abandons carrying out (abort) this battery saving mode, when this external event (for example the user pushes a button) is triggered before this system clock stops to drive microprocessor 48, then can finish timing control program 58 (step 118) and power saving hypervisor 56 (step 120) in regular turn, otherwise, when this external event is not triggered before this system clock stops to drive microprocessor 48, then timing control program 58 can calculate the actual execution time that device for mobile communication 40 is carried out this battery saving mode, owing to device for mobile communication 40 may decommission the back because this external event triggers and needs to finish this battery saving mode and carry out the related interrupts service to make this system clock driving microprocessor 48 again entering this battery saving mode, therefore the actual execution time of this battery saving mode may be less than or equal to this predetermined time of implementation, at last after this system clock drives microprocessor 48 again, the sequential signal that timing control program 58 can come control timing generator 46 input transceivers 44 according to this actual execution time with the sequential of replying device for mobile communication 40 with the sequential of base station 41 (step 116) synchronously, finish timing control program 58 (step 118) and power saving hypervisor 56 (step 120) then in regular turn and finish time sequence reply (timing recovery) operation of corresponding battery saving mode.
As mentioned above, the work of power saving hypervisor 56 for having minimum execution priority, be used for judging whether device for mobile communication 40 is in idle state, yet when execution in step 106 when calculating predetermined time of implementation of battery saving mode, if there is the break in service of higher execution priority to be triggered when carrying out, power saving hypervisor 56 in the positive execution in step 106 can be interrupted by above-mentioned break in service, if power saving hypervisor 56 is constantly interrupted by the break in service that other have higher execution priority, then power saving hypervisor 56 needs very long time of implementation completing steps 106 should be scheduled to the time of implementation to calculate, in addition, by flow chart shown in Figure 2 as can be known, known technology needs the time sequence reply work after power saving hypervisor 56 and timing control program 58 carry out this battery saving mode and the end of this battery saving mode respectively, wherein must when design power saving hypervisor 56 and timing control program 58, consider the situation of many interruptions (interrupt) and exception (exception), in addition, power saving hypervisor 56 and timing control program 58 adhere to different handling procedure (process) separately, because the running of the battery saving mode of device for mobile communication 40 involves the running between the different disposal program, the running that therefore more causes this battery saving mode is with respect to single handling procedure and complicated more.
Summary of the invention
Therefore main purpose of the present invention is to provide a kind of sequential control method of device for mobile communication, when this device for mobile communication is carried out a battery saving mode, this sequential control method is to use the sequential with sequential that the break in service of high execution priority controls the execution of this battery saving mode and this device for mobile communication and a base station synchronous, to address the above problem.
The invention provides sequential (timing) control method of a kind of device for mobile communication (mobile communication device), this device for mobile communication is to be connected in a base station (basestation) in wireless mode, this base station is that (time division multiple access is TDMA) to use a plurality of hardwoods (frame) to transmit wireless communication signals to this device for mobile communication and the wireless communication signals that receives the output of this device for mobile communication via time division multiple access way.This device for mobile communication includes a control unit (micro-controller unit, MCU), be used for carrying out a real time operating system (real-time operatingsystem, RTOS) control the running of this device for mobile communication to be written into a plurality of control programs, include a synchronous control program (synchronous task) in these a plurality of control programs; One sequential generator (timinggenerator) is electrically connected on this control unit, is used for controlling this device for mobile communication to sequential that should a plurality of hardwoods; And a clock generator (clock generator), be electrically connected on this control unit, be used for producing one first clock signal (primary clock) to drive this control unit.This sequential control method includes: this control unit is carried out this Synchronization Control program interrupting other control programs that (interrupt) is written at present, and uses this Synchronization Control program to calculate can to stop this first clock signal to drive this control unit and predetermined power saving period (predetermined sleep period) of starting a battery saving mode (sleep mode); This control unit is carried out this Synchronization Control program and is stopped this first clock signal drive this control unit in an actual power saving period (actual sleep period) to drive this device for mobile communication; And this control unit is carried out this Synchronization Control program and is controlled this clock generator is synchronized with this base station with the sequential of adjusting this device for mobile communication according to this actual power saving period sequential.
Description of drawings
Fig. 1 is the circuit diagram of known device for mobile communication.
Fig. 2 is the operational flowchart that device for mobile communication shown in Figure 1 is carried out battery saving mode.
Fig. 3 is a function of mobile communication device calcspar of the present invention.
Fig. 4 is a Synchronization Control program implementation schematic diagram shown in Figure 3.
Fig. 5 is a power saving management program implementation flow chart shown in Figure 3.
Fig. 6 carries out the flow chart of this battery saving mode for device for mobile communication shown in Figure 3.
Fig. 7 is the schematic diagram that device for mobile communication shown in Figure 3 is replied sequential.
Description of reference numerals
40,60 device for mobile communication, 42,62 antennas
44,64 transceivers, 46,66 clock generators
48 microprocessors, 50,72 clock generators
52,70 memories, 54,71 real time operating systems
56 power saving hypervisors, 58 timing control programs
68 control units, 74 first counters
76 second counters, 86 first registers
88 second registers 90 the 3rd register
92 power down mode registers
Embodiment
See also Fig. 3.Fig. 3 is the functional block diagram of device for mobile communication 60 of the present invention.Device for mobile communication 60 includes an antenna (antenna) 62, one transceiver (transceiver) 64, one sequential generator (timing generator) 66, one control unit (micro-controller) unit, MCU 68, one memory 70, a clock generator (clock generator) 72, one first counters 74, one second counter 76, one first register 86, one second register 88, one the 3rd register 90 and a power down mode register (sleep mode status register) 92.Antenna 62 can receive the radio-frequency (RF) signal that export a base station, and with device for mobile communication 60, and for example the radio-frequency (RF) signal exported of a hand phone (cellular phone) is passed to this base station.Transceiver 64 can be converted to the radio-frequency (RF) signal that export this base station fundamental frequency (baseband) signal of low frequency and export control unit 68 to, and the baseband signal that control unit 68 is produced is converted to the radio-frequency (RF) signal of high frequency after by antenna 62 outputs.Control unit 68, a microprocessor (micro-processor) for example, real time operating system (the real-time operatingsystem that execute store 70 is loaded, RTOS) 71 overall operations of controlling device for mobile communication 60, that is control unit 68 can start controlling signal (controlsignal) and the information signal (information signal) that a plurality of control programs are handled this base station transmission via real time operating system 71, and the controlling signal and the information signal of device for mobile communication 60 be passed to this base station, wherein controlling signal is to be used for setting applied communications protocol between device for mobile communication 60 and this base station, and the information signal is speech sound signal (speech signal) or the data signals (data signal) for transmitting between first speaker and the person who accepts then.70 of clock generators are to be used for producing one first a clock CLK_1 and a second clock CLK_2.The first clock CLK_1 is a high-frequency signals, is used for driving control unit 68 to control the running of device for mobile communication 60; Second clock CLK_2 is a low-frequency signal then, is used for the actual execution time of timing one battery saving mode.When battery saving mode was carried out, the first clock CLK_1 can stop Input Control Element 68 to reduce power consumption.In addition, the periodicity of 74 foundation first clock CLK_1 of first counter is counted and is produced one first count value 75, and just can to produce sequential signal (timing signal) according to first count value 5 synchronous with the sequential of the sequential of control device for mobile communication 60 and this base station for clock generator 66 then.Therefore transceiver 64 just can correctly transmit and receive signal.For instance, if this base station employed hardwood cycle (frame period) is T, the cycle of the first clock CLK_1 is that (T＞t), an and predetermined count value is n, wherein T=n*t note that this predetermined count value is to be stored in first register 86 to t.When the hardwood of this base station begins, first counter 74 can begin to count the first clock CLK_1 by an initial value (for example 0), that is each cycle of the first clock CLK_1 can make first count value 75 increase progressively 1, when first count value 75 equals this predetermined count value, device for mobile communication 60 knows that promptly a hardwood of this base station finishes, and next hardwood to be ready beginning, so first count value 75 can reset to its initial value and count again the concluding time that the first clock CLK_1 decides next hardwood.Via above-mentioned running, device for mobile communication 60 just can determine the beginning and the end of the hardwood of this base station, that is the sequential of device for mobile communication 60 just can be synchronous with the sequential of this base station.Yet, may not be just to be integer ratio relation between the cycle t of the first clock CLK_1 and the hardwood period T, though that is n*t level off to T, be not to equal T just.Though the residual quantity of n*t and T is minimum, but after first counter 74 utilizes this predetermined count value n to judge a plurality of hardwoods of this base station constantly, the replacement time of first count value 75 can produce counting side-play amount (deviation) ± Δ n with the concluding time formation of corresponding hardwood than mistake, that is device for mobile communication 60 can't correctly determine concluding time of the hardwood of this base station this moment, so the sequential of device for mobile communication 60 is no longer synchronous with the sequential of this base station.To be that n ± Δ n revises replacement time of first count value 75 identical with the concluding time of corresponding hardwood so that can adjust predetermined count value when next hardwood of first counter 74 counting, therefore the sequential of device for mobile communication 60 just can be synchronous with the sequential of this base station again, and re-use beginning and the end that predetermined count value n decides the hardwood of this base station.In other words, by adjusting this count value n constantly, can make the sequential of the sequential of device for mobile communication 60 and this base station synchronous.In the present embodiment, first count value 75 is upwards to increase progressively 1 gradually by initial value, reaches predetermined count value up to first count value 75.Yet first count value 75 also can upwards increase progressively k (k is a positive integer) up to reaching predetermined count value gradually via initial value; Or successively decrease k (k is a positive integer) gradually downwards up to reaching this initial value via this predetermined count value, finish the purpose in this hardwood cycle of calculating.Similarly, second counter 76 is count enable second clock CLK_2 and upwards increase progressively k (k is a positive integer) gradually via an initial value and produce one second count value 77 also, or produces second count value 77 via the predetermined count value k (k is a positive integer) that successively decreases gradually downwards.
In the present embodiment, control unit 68 starts a synchronous control program (synchronous task) 78 via real time operating system 71, it is an interrupt service routine (interrupt service routine, ISR), and control unit 68 to set Synchronization Control programs 78 be to have the highest (highest) execution priority (priority) in the performed a plurality of control programs of real time operating system 71.Synchronization Control program 78 mainly is to be used for carrying out the scheduling of carrying out required hardware setting of communication and related hardware resource between device for mobile communication 60 and this base station to handle, and device for mobile communication 60 is carried out Synchronization Control program 78 so that the sequential of the sequential of device for mobile communication 60 and this base station is synchronous.Wherein Synchronization Control program 78 includes a hardware drive program (hardware driver) 80, one power saving hypervisors (sleep manager) 82, and a scheduler program (scheduler) 84.Hardware drive program 80 is the work that is used for carrying out hardware setting.82 of power saving hypervisors are to be used for checking whether device for mobile communication 60 is in idle state and whether carries out a battery saving mode (sleep mode) with decision, and begin to carry out the work of time sequence reply in this battery saving mode Inform when done scheduler program 84.Scheduler program 84 is to come control hardware driver 80 to carry out the dispatching management of hardware resource according to device for mobile communication 60 pairing Protocol Stacks (protocol stack), and each required related hardware is dispatched so that it correctly operates during for example for device for mobile communication 60 receptions or transmission signal.See also Fig. 4, Fig. 4 is the execution schematic diagram of Synchronization Control program 78 shown in Figure 3.Synchronization Control program 78 is an interrupt service routine, that is control unit 68 triggers interrupt vectors (interrupt) and carry out corresponding Synchronization Control program 78, and as shown in Figure 4, device for mobile communication 60 triggers this interrupt vector in each hardwood of base station.In hardwood N, Synchronization Control program 78a is performed, hardware drive program 80a begins to carry out hardware setting so that device for mobile communication 60 can correctly operate (receiving or transmission signal) in next hardwood N+1, power saving hypervisor 82a then can judge whether to carry out this battery saving mode, and finishing parameter that back transmission correlation timing replys to scheduler program 84a in this battery saving mode, scheduler program 84a then handles the scheduling of hardwood N+2 required running carrying out hardware resource then.When Synchronization Control program 78b was performed in next hardwood N+1, hardware drive program 80b can receive result that the scheduler program 84a of last Synchronization Control program 78a exported immediately to carry out related hardware and sets.In addition, if Synchronization Control program 78a detects the sequential of the sequential of device for mobile communication 60 and this base station when carrying out asynchronous, then its scheduler program 84a can order the hardware drive program 80b of next Synchronization Control program 78b to adjust this predetermined count value simultaneously, even also the sequential of device for mobile communication 60 is when hardwood N+1 finishes and this base station synchronization.Similarly, power saving hypervisor 82b then can judge whether to carry out this battery saving mode, and scheduler program 84b then handles the scheduling of hardwood N+3 required running carrying out hardware resource then.Because when hardwood N+1 finishes, the sequential of device for mobile communication 60 just with this base station synchronization, therefore a synchronous control program 78c is when hardwood N+2 carries out instantly, hardware drive program 80c is original predetermined count value hardwood cycle of calculating hardwood N+2 of foundation still.Power saving hypervisor 82c and scheduler program 84c repeat to give unnecessary details as previously mentioned and no longer.
See also Fig. 5, Fig. 5 is the flowchart of power saving hypervisor 82 shown in Figure 3.The operation of power saving hypervisor 82 includes the following step:
Step 200: beginning;
Step 202: check that the control program that is written at present is in idle state? if then carry out
Step 204: otherwise, execution in step 220;
Step 204: calculate a predetermined power saving period;
Step 206: the periodicity (cycle) that to change this predetermined power saving period be corresponding second clock CLK_2, and store a corresponding counting critical value in second register 88;
Step 208: start battery saving mode;
Step 210: read power down mode register 92;
Does step 212: judging have an external event to trigger before this first clock CLK_1 stops driving control unit 68 and yields (abort) and carry out this battery saving mode? if then execution in step 220, otherwise, execution in step 214;
Does step 214: battery saving mode finish? if then execution in step 216, otherwise, get back to step 210;
Step 216: calculate an actual power saving period;
Step 218: should inform that scheduler program 84 is to reply the sequential of device for mobile communication 60 the actual power saving period;
Step 220: finish.
The operation of above-mentioned power saving hypervisor 82 is described below.Because Synchronization Control program 78 is to have the preferential interrupt service routine only of the highest execution, so when power saving hypervisor 82 was carried out, it can interrupt control program loaded in the device for mobile communication 60.This control program that is written into is the running that is used for controlling related hardware in the device for mobile communication 60, so power saving hypervisor 82 can check that just whether this control program that is written into be in idle (idle) state (step 202).If all being in idle state, this control program that is written into represents that then present device for mobile communication 60 is idle and the end operates, and therefore just can reduce the power consumption of device for mobile communication 60 via a battery saving mode (that is first clock that stops high frequency driving device for mobile communication 60).As previously mentioned, a calling signal can be transmitted in the base station has a calling to inform device for mobile communication 60, therefore device for mobile communication 60 must keep standby (standby) state to call out signal to prepare receiving this in specific time point, so the predetermined power saving period that power saving hypervisor 82 needs calculating device for mobile communication 60 can carry out this battery saving mode receives this calling signal (step 204) to avoid in time getting back to standby (standby) state, therefore can provide relevent information to obtain this predetermined power saving period, the integral multiple that this predetermined power saving period is this hardwood cycle via real time operating system 71.Because when device for mobile communication 60 enters battery saving mode, the first clock CLK_1 can stop to drive device for mobile communication 60, therefore present embodiment is the time of implementation of calculating battery saving mode with second clock CLK_2, so must will be scheduled to the periodicity (step 206) that the power saving period is converted to second clock CLK_2.This periodicity is a counting critical value, it enters battery saving mode and after starting second counter 76 counting second clock CLK_2 with meaning when device for mobile communication 60, when if second count value 77 reaches this counting critical value by an initial value (for example 0), expression device for mobile communication 60 has been finished this predetermined power saving period and has been needed to finish this battery saving mode, and gets back to holding state.Behind completing steps 206, power saving hypervisor 82 can drive the hardware of device for mobile communication 60 to start this battery saving mode (step 208), and power saving hypervisor then 82 can read power down mode register 92 to judge the operating state (step 210) of this battery saving mode at present.In the present embodiment, power down mode register 92 includes following 4 kinds of states at least:
A. after power saving hypervisor 82 starts these battery saving modes, wait for that the first clock CLK_1 is actual and stop to drive device for mobile communication 60.
B. (just CLK_1 is about to stop to drive device for mobile communication 60 in waiting for the actual process that stops to drive device for mobile communication 60 of the first clock CLK_1, but before really not stopping to drive device for mobile communication 60 as yet), device for mobile communication 60 receives an external event (external event) and abandons carrying out this battery saving mode.
C. the first clock CLK_1 is actual stop to drive device for mobile communication 60 after, device for mobile communication 60 receives external events and finishes this battery saving mode.
D. the first clock CLK_1 is actual stop to drive device for mobile communication 60 after, device for mobile communication 60 is finished this predetermined power saving period and is finished battery saving mode, and gets back to holding state.
In the present embodiment, when power saving hypervisor 82 starts this battery saving mode, device for mobile communication 60 may not enter this battery saving mode immediately, that is first clock CLK_1 may be not drives interrupts device for mobile communication 60 immediately, its reason is being described in detail after a while, so when learning that when reading power down mode register 92 its recording status is a, expression power saving hypervisor 82 is just waiting the hardware of standby mobile communication device 60 formally to enter battery saving mode, and this moment, the first clock CLK_1 still continued driving control unit 68.Learn when its recording status is b if read power down mode register 92, before the hardware that is shown in device for mobile communication 60 will soon formally enter battery saving mode, device for mobile communication 60 receives an external event, therefore must carry out a corresponding control program via control unit 68 and handle this external event, so device for mobile communication 60 can not enter battery saving mode, that is device for mobile communication 60 offhand decision abandon carrying out this battery saving mode, so can be after execution in step 212 and finish power saving hypervisor 82 via step 220.If read power down mode register 92 and learn when its recording status is c, the hardware of expression device for mobile communication 60 receives an external event and finishes this battery saving mode to handle this external event after entering battery saving mode.Similarly, learn when its recording status is d if read power down mode register 92, after expression device for mobile communication 60 enters this battery saving mode, finished the time span of this predetermined power saving period smoothly, that is device for mobile communication 60 has left this battery saving mode and has got back to holding state, so after learning that via step 214 this battery saving mode has finished, must calculate an actual power saving period (step 216).As previously mentioned, be corresponding to state c if device for mobile communication 60 finishes this battery saving mode, the then actual power saving period can be less than this predetermined power saving period; On the contrary, be corresponding to state d if device for mobile communication 60 finishes this battery saving mode, the then actual power saving period can equal this predetermined power saving period, and the calculating of this actual power saving period is described in detail in the back.Information that at last should the actual power saving period can be transmitted and give scheduler program 84 (step 218), as previously mentioned, therefore scheduler program 84 can order the hardware drive program 80 of next Synchronization Control program 78 to carry out the operation of time sequence reply, and it is synchronous to carry out the sequential of the sequential that make device for mobile communication 60 later and this base station in the hardware drive program 80 of next Synchronization Control program 78.In the present embodiment, power saving hypervisor 82 is to check the state that power down mode register 92 is write down in the mode of poll (polling) (that is via step 210,212,214 formed circulations), therefore can know carrying out state and finishing reason of this battery saving mode.
See also Fig. 6, Fig. 6 is the flow chart that device for mobile communication 60 shown in Figure 3 is carried out this battery saving mode.60 pairs of device for mobile communication should battery saving mode operation include the following step:
Step 300: beginning;
Step 302: device for mobile communication 60 starts this battery saving mode;
Does step 304: the second clock CLK_2 voltage level of clock generator 72 outputs arrive rising edge (rising edge) or drop edge (falling edge)? if then execution in step 306, otherwise, repeated execution of steps 304;
Step 306: first count value 75 that present first counter 74 of the 3rd register 90 records is calculated;
Step 308: start second counter, 308 counting second clock CLK_2;
Does step 310: device for mobile communication 60 receive an external event? if then execution in step 326, otherwise, execution in step 312;
Does step 312: first count value 75 equal this predetermined count value? if then execution in step 314, otherwise, execution in step 310;
Step 314: close the first clock CLK_1;
Does step 316: device for mobile communication 60 receive an external event? if then execution in step 320, otherwise, execution in step 318;
Does step 318: second count value 77 equal this counting critical value? if then execution in step 320, otherwise, execution in step 316;
Step 320: stop second counter 76;
Step 322: restart the first clock CLK_1;
Step 324: leave battery saving mode;
Step 326: finish.
The principle and the purpose of aforesaid operations are described below.Via the step 208 of Fig. 5, this moment, the power saving hypervisor 82 started battery saving modes, and device for mobile communication 60 also begins to carry out to hardware running (step 302) that should battery saving mode.As previously mentioned, this battery saving mode is to reach purpose of power saving via stopping first clock CLK_1 driving device for mobile communication 60, therefore decommission down in control unit 68, the time of implementation that must utilize second clock CLK_2 to calculate this battery saving mode, whether reach the execution whether (step 304) that decides subsequent operation in rising/drop edge (rising/fallingedge) so need to judge second clock CLK_2 voltage level that clock generator 72 is exported.If clock generator 72 has reached rising/drop edge, then count first count value 75 that (step 308) can be calculated present first counter 74 earlier before the second clock CLK_2 at startup second counter 76 and be recorded in the 3rd register 90 (step 306), device for mobile communication 60 begins to detect whether receive an external event (step 310) then.If there is an external event to trigger device for mobile communication 60, then device for mobile communication 60 must abandon carrying out (abort) this battery saving mode midway so that make control unit 68 can handle this external event, otherwise whether device for mobile communication 60 can detect first count value reaches this predetermined count value, that is when to should dull emitter tube during the hardwood end cycle of reason program 82, device for mobile communication 60 just can formally enter this battery saving mode, that is when this corresponding hardwood finished, device for mobile communication 60 was just closed the first clock CLK_1 and is entered this battery saving mode (step 314).If device for mobile communication 60 is before entering this battery saving mode, passing through this predetermined power saving period, receiving an external event triggers, then device for mobile communication 60 carries out step 320 to stop the timework to this battery saving mode, device for mobile communication 60 can judge whether to receive this external event (step 316) constantly, equals this counting critical value and till finishing this predetermined power saving period (step 318) up to second count value 77.After second counter 76 stopped to count second clock CLK_2, the first clock CLK_1 then can drive device for mobile communication 60 again leaving this battery saving mode, and replied the normal operation state.Note that after execution in step 302 it is a that device for mobile communication 60 can make power saving shape register 92 recording status; When execution in step 310 and after detecting an external event, it is b that device for mobile communication 60 can make power saving shape register 92 recording status; When execution in step 316 and after detecting an external event, device for mobile communication 60 can make power saving shape register 92 recording status c; And after execution in step 318,60 of device for mobile communication can make power saving shape register 92 recording status d.Because after device for mobile communication 60 enters this battery saving mode, control unit 68 can't drive to carry out power saving hypervisor 82 via the first clock CLK_1, that is after device for mobile communication 60 enters this battery saving mode, power saving hypervisor 82 also is interrupted execution immediately, therefore in fact power saving hypervisor 82 itself can't learn the operation situation of this battery saving mode, so present embodiment utilizes power down mode register 92 stored information to represent the operation situation and end reason of this battery saving mode.After device for mobile communication 60 finishes this battery saving mode, power saving hypervisor 82 is also recovered to carry out thereupon, this moment, power saving hypervisor 82 just can learn that this battery saving mode has finished or is interrupted mode of operation such as execution by reading power down mode register 92, and then calculated an actual power saving period (step 218 shown in Figure 5).
Present embodiment utilizes the first stored count value 75 of step 306, second count value 77 that is write down during step 320, and the predetermined count value of corresponding first counter 74 is calculated this actual power saving period.For instance, if the frequency of the first clock CLK_1 is f1, the frequency of second clock CLK_2 is f2, the first stored count value 75 of corresponding step 306 is OLD-COUNT, second count value 77 that is write down during correspondence step 320 is SEC_COUNT, and the predetermined count value of corresponding first counter 74 is WRAP_THRESHOLD, then should the actual power saving period represent to be with the periodicity of the first clock CLK_1:
Therefore, scheduler program 84 just can come the hardware drive program 80 of next Synchronization Control program 78 of order to revise the predetermined count value of corresponding first counter 74 according to the periodicity of the pairing first clock CLK_1 of this actual power saving period, therefore can reply the sequential with base station synchronization after device for mobile communication 60 finishes this battery saving mode.
See also Fig. 3 and Fig. 7.Fig. 7 is the schematic diagram that device for mobile communication 60 shown in Figure 3 is replied sequential.From top to bottom represent the first clock CLK_1, second clock CLK_2, first count value 75, base station hardwood, Synchronization Control program 78 and time shaft respectively.When base station hardwood N-1 begins, suppose sequential and this base station synchronization of device for mobile communication 60 this moment, therefore when time t0, first counter 74 is understood by an initial value (for example 0) and is begun upwards to count the first clock CLK_1.When time t1, control unit 68 is carried out Synchronization Control program 78 because an interrupt vector triggers, and it includes hardware drive program 80, power saving hypervisor 82 and scheduler program 84, and represents with numeral 80,82,84 respectively in Fig. 7.Because sequential and this base station synchronization of device for mobile communication 60, therefore hardware drive program 80 can't be adjusted the predetermined count value TH1 of present corresponding first counter 74, so for first counter 74, it still counts the first clock CLK_1 till first count value 75 equals this predetermined count value TH1 in the hardwood N-1 of base station.After power saving hypervisor 82 judges that device for mobile communication 60 can be carried out battery saving mode, when time t2 (be second clock arrive in rising/drop edge), device for mobile communication 60 can be recorded in present first count value 75 in the 3rd register 90 (step 306 shown in Fig. 6), that is the 3rd register 90 can record C1, device for mobile communication 60 can begin to start second counter 76 and counts second clock CLK_2 (step 308 shown in Figure 6) then.At this moment, because first count value 75 does not reach this predetermined count value TH1 as yet, therefore the first clock CLK_1 still can continue to drive device for mobile communication 60, when time t3, device for mobile communication 60 begins to enter this battery saving mode, and power saving this moment hypervisor 82 can interrupt carrying out owing to control unit 68 decommissions.When device for mobile communication 60 (is carried out or normal termination because abandon) when time t4 finishes this battery saving mode, this moment second, count value 77 can write down corresponding to the numerical value between time t2～t4, be called C2, first counter 74 can upwards be counted the first clock CLK_1 to produce first count value 75 again by initial value simultaneously.Significantly, time t4 is not the time started of base station hardwood N+M-2, that is when device for mobile communication 60 finished this battery saving mode, the sequential of device for mobile communication 60 and this base station were also asynchronous, and power saving this moment hypervisor 82 is according to aforementioned formula
Produce the periodicity to the first clock CLK_1 that should actual battery saving mode, it is
Wherein the frequency of the first clock CLK_1 is f1, and the frequency of second clock CLK_2 is f2.Note that for the ease of showing technical characterictic of the present invention in the diagram of Fig. 7, the frequency of the first clock CLK_1 is the twice that is expressed as the frequency of second clock CLK_2.Yet, in the present embodiment, can corresponding any proportionate relationship between the first clock CLK_1 and the second clock CLK_2, all can reach the operation purpose of counting, all belong to category of the present invention.
Then, power saving hypervisor 82 is informed scheduler program 84 with above-mentioned information, thus scheduler program 84 can to order the hardware drive program 80 that begins to carry out in time t5 to adjust original predetermined count value TH1 further be TH2.Please note, because the time difference of time t4～t5 is always less than the pairing frame period of base station hardwood, therefore second count value 77 is when time t5 and can't reach this original predetermined count value TH1, therefore can continue upwards to increase progressively behind time t5 to be reset up to time t6 to be initial value.By shown in Figure 7, when time t6, the sequential of device for mobile communication 60 promptly with this base station synchronization, the time started and concluding time of learning each frame so device for mobile communication 60 in next base station frame N+M, replys then that this predetermined count value TH1 calculates its frame period.Note that in the present embodiment that power saving hypervisor 82 is executed in after the hardware drive program 80, and be executed in before the scheduler program 84.When such execution sequence can make device for mobile communication 60 these battery saving modes of execution and carry out the operation of correlation timing answer, not only real work was easy and execution efficient is preferable.Yet, if adjust the execution sequence of hardware drive program 80, power saving hypervisor 82 and scheduler program 84 in the Synchronization Control program 78, also can reach the purpose of utilizing same power saving hypervisor 82 to control the execution and the operation that correlation timing is replied of these battery saving modes.In addition, in the present embodiment, first register 86, second register 88, the 3rd register 90, power down mode register 92, first counter 74, second counter 76 are independent circuits, finish its function respectively yet it also can be integrated in the device for mobile communication 60 in other circuit.For example first counter 74 can be integrated in the clock generator 66, or second counter 76 can be integrated in the clock generator 72, above-mentionedly all belongs to category of the present invention.
Compared to known technology, sequential control method of the present invention is to use one to have the interrupt service routine of high execution priority and control the execution of this battery saving mode and the operation that correlation timing is replied simultaneously.Because it has the highest execution priority, therefore can be when comprise the running of correlative electricity-saving patterns such as time sequence reply by interruptions such as other programs or interrupt service routines, so make device for mobile communication (a for example hand phone) carry out battery saving mode more efficiently to increase battery service time to reduce its power consumption.So sequential control method of the present invention can provide a kind of reality to do simple and effective and efficient manner is come managing power saving mode.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all belong to the covering scope of patent of the present invention.
Claims (24)
1. the sequential control method of a device for mobile communication, this device for mobile communication is connected in a base station in wireless mode, this base station is carried out the wireless signal transmission with this device for mobile communication to use a plurality of hardwoods via time-division multiple address system, and this device for mobile communication includes:
One control unit is used for carrying out a real time operating system is controlled this device for mobile communication to be written into a plurality of control programs running, includes a synchronous control program in these a plurality of control programs;
One sequential generator is electrically connected on this control unit, is used for controlling this device for mobile communication to sequential that should a plurality of hardwoods; And
One clock generator is electrically connected on this control unit, is used for producing one first clock signal to drive this control unit;
This sequential control method includes:
This control unit is carried out this Synchronization Control program interrupting other control programs that this real time operating system is written at present, and uses this Synchronization Control program to calculate can to stop this first clock signal to drive this control unit and predetermined power saving period of starting a battery saving mode;
This control unit is carried out this Synchronization Control program and is stopped this first clock signal drive this control unit in an actual power saving period to drive this device for mobile communication; And
This control unit is carried out this Synchronization Control program and is controlled this clock generator is synchronized with this base station with the sequential of adjusting this device for mobile communication according to this actual power saving period sequential.
2. sequential control method as claimed in claim 1 also includes:
Carry out a whether all corresponding idle state and can drive this device for mobile communication and carry out this battery saving mode of other control programs that this Synchronization Control program is written into judgement.
3. sequential control method as claimed in claim 1, wherein this Synchronization Control program is an interrupt service routine, it has the highest execution priority in these a plurality of control programs.
4. sequential control method as claimed in claim 1 should be the integral multiple in this hardwood cycle the predetermined power saving period wherein.
5. sequential control method as claimed in claim 1, wherein this device for mobile communication also includes a power down mode register, is used for writing down the information to mode of operation that should battery saving mode.
6. sequential control method as claimed in claim 5, it also includes: this Synchronization Control program reads information that this power down mode register write down to judge whether this device for mobile communication abandons carrying out this battery saving mode before starting this battery saving mode.
7. sequential control method as claimed in claim 5, it also includes: this Synchronization Control program reads information that this power down mode register write down to judge whether this device for mobile communication stops carrying out this battery saving mode after starting this battery saving mode.
8. sequential control method as claimed in claim 7, it also includes: stop carrying out this battery saving mode when this device for mobile communication is accepted external event triggering.
9. sequential control method as claimed in claim 7, it also includes: stop carrying out this battery saving mode and start this battery saving mode also through being somebody's turn to do predetermined power saving during the period at this device for mobile communication.
10. sequential control method as claimed in claim 3, wherein this clock generator also produces a second clock, is used for starting the running time that this battery saving mode is calculated in the back at this battery saving mode.
11. sequential control method as claimed in claim 10, wherein this device for mobile communication also includes:
One first counter, be electrically connected on this clock generator, be used for counting the periodicity of this first clock signal to produce one first count value, this first count value is recorded in one first register, when this first count value begins to count this first clock signal by an initial value and reaches a predetermined count value, this first count value can reset to this initial value counting this first clock signal again, and the time of this first count value of resetting promptly is used for distinguishing the sequential of two adjacent hardwoods; And
One second counter is electrically connected on this clock generator, is used for counting the periodicity of this second clock signal to produce one second count value.
12. sequential control method as claimed in claim 11, it also includes:
Calculate a counting critical value, its for this second clock signal to should being scheduled to the periodicity of power saving period, and write down this counting critical value in one second register.
13. sequential control method as claimed in claim 12, it also includes:
After the calculating of finishing this counting critical value, start this second counter and count this second clock signal, and first count value of simultaneously this first counter being calculated when this second counter starts is recorded in one the 3rd register.
14. sequential control method as claimed in claim 13, it also includes:
According to the counting critical value that this second register is write down, first count value that the 3rd register is write down, and this second count value is calculated this actual power saving period.
15. sequential control method as claimed in claim 12, it also includes:
Receive an external event when triggering if this second count value reaches this counting critical value or this device for mobile communication, then stop this second counter, and stop this battery saving mode of execution so that this first clock signal is imported this control unit.
16. sequential control method as claimed in claim 11, it also includes:
When first count value of being calculated when this first counter reached this predetermined count value, this device for mobile communication then began to start this battery saving mode and imports this control unit to stop this first clock signal.
17. sequential control method as claimed in claim 10, wherein the frequency of this first clock signal is higher than the frequency of this second clock signal.
18. sequential control method as claimed in claim 1, wherein this Synchronization Control program package contains:
One hardware drive program is used for carrying out the hardware setting of this device for mobile communication;
One power saving hypervisor is used for controlling the running of this battery saving mode; And
One scheduler program is used for this hardware drive program of order to control this device for mobile communication.
19. sequential control method as claimed in claim 18, it also includes: carry out this power saving hypervisor before this hardware drive program is carried out, and carried out this power saving hypervisor before this scheduler program.
20. sequential control method as claimed in claim 19, wherein this Synchronization Control program is that the execution of repetitiousness ground is carried out this battery saving mode to control this device for mobile communication, and the preceding Synchronization Control program scheduler of once carrying out can be controlled the hardware drive program of the Synchronization Control program of next time carrying out.
21. sequential control method as claimed in claim 1, wherein this device for mobile communication is a hand phone.
22. the sequential control method of a device for mobile communication, this device for mobile communication is to be connected in a base station in wireless mode, this base station is to carry out the wireless signal transmission with this device for mobile communication to use a plurality of hardwoods via time-division multiple address system, and this device for mobile communication includes:
One control unit is used for carrying out a real time operating system is controlled this device for mobile communication to be written into a plurality of control programs running, includes a synchronous control program in these a plurality of control programs;
One sequential generator is electrically connected on this control unit, is used for controlling this device for mobile communication to sequential that should a plurality of hardwoods; And
One clock generator is electrically connected on this control unit, is used for producing one first clock signal to drive this control unit;
This sequential control method includes:
This control unit is set this Synchronization Control program corresponding the highest execution priority in these a plurality of control programs;
This control unit is carried out this Synchronization Control program and is calculated and can stop that this first clock signal drives this control unit and predetermined power saving period of starting a battery saving mode;
This control unit is carried out this Synchronization Control program and is stopped this first clock signal drive this control unit in an actual power saving period to drive this device for mobile communication; And
This control unit is carried out this Synchronization Control program and is controlled this clock generator is synchronized with this base station with the sequential of adjusting this device for mobile communication according to this actual power saving period sequential.
23. the sequential control method of a device for mobile communication, this device for mobile communication is connected in a base station in wireless mode, this base station is to carry out the wireless signal transmission with this device for mobile communication to use a plurality of hardwoods via time-division multiple address system, and this device for mobile communication includes:
One control unit is used for carrying out a real time operating system is controlled this device for mobile communication to be written into a plurality of control programs running, includes a synchronous control program in these a plurality of control programs;
One sequential generator is electrically connected on this control unit, is used for controlling this device for mobile communication to sequential that should a plurality of hardwoods; And
One clock generator is electrically connected on this control unit, is used for producing one first clock signal to drive this control unit;
This sequential control method includes:
This control unit is set this Synchronization Control program corresponding one first execution priority in these a plurality of control programs, and the non-corresponding one minimum execution priority of this first execution priority;
This control unit is carried out this Synchronization Control program and is calculated and can stop that this first clock signal drives this control unit and predetermined power saving period of starting a battery saving mode;
This control unit is carried out this Synchronization Control program and is stopped this first clock signal drive this control unit in an actual power saving period to drive this device for mobile communication; And
This control unit is carried out this Synchronization Control program and is controlled this clock generator is synchronized with this base station with the sequential of adjusting this device for mobile communication according to this actual power saving period sequential.
24. sequential control method as claimed in claim 23, wherein this first execution priority is the highest execution priority.
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| CNB031205720A CN100391281C (en) | 2003-03-14 | 2003-03-14 | Sequential controlling method for electric-saving mode of mobile communication device |
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| CNB031205720A CN100391281C (en) | 2003-03-14 | 2003-03-14 | Sequential controlling method for electric-saving mode of mobile communication device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101682892A (en) * | 2007-05-24 | 2010-03-24 | 诺基亚公司 | Power save protocol interoperability detection |
| CN101931384A (en) * | 2009-06-22 | 2010-12-29 | 张中行 | Power-saving trigger-type control device for instantly varying frequency and method thereof |
| CN102244926A (en) * | 2010-05-13 | 2011-11-16 | 联发科技股份有限公司 | Frame timing controller and frame timing control method |
| CN102340851A (en) * | 2010-07-19 | 2012-02-01 | 财团法人资讯工业策进会 | Power saving method of mobile apparatus and communication system thereof |
| CN102469049A (en) * | 2011-06-30 | 2012-05-23 | 重庆重邮信科通信技术有限公司 | Method and device for radio frequency control of mobile terminal |
| CN103442493A (en) * | 2013-09-03 | 2013-12-11 | 英华达（上海）科技有限公司 | Method, device, client, server and system for controlling power driving |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1037477A4 (en) * | 1998-07-30 | 2005-06-01 | Mitsubishi Electric Corp | Mobile communication system |
| US6463307B1 (en) * | 1998-08-14 | 2002-10-08 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for power saving in a mobile terminal with established connections |
| CN1399483A (en) * | 2001-07-23 | 2003-02-26 | 英华达股份有限公司 | Power-saving method for mobile phone |
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2003
- 2003-03-14 CN CNB031205720A patent/CN100391281C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101682892A (en) * | 2007-05-24 | 2010-03-24 | 诺基亚公司 | Power save protocol interoperability detection |
| CN101931384A (en) * | 2009-06-22 | 2010-12-29 | 张中行 | Power-saving trigger-type control device for instantly varying frequency and method thereof |
| CN102244926A (en) * | 2010-05-13 | 2011-11-16 | 联发科技股份有限公司 | Frame timing controller and frame timing control method |
| US8879585B2 (en) | 2010-05-13 | 2014-11-04 | Mediatek Inc. | Frame timing controller and frame timing control method for triggering at least receiver in mobile station to start receiving transmitted information of base station by referring to at least frame pointer |
| CN102244926B (en) * | 2010-05-13 | 2014-11-19 | 联发科技股份有限公司 | Frame timing controller and frame timing control method |
| CN102340851A (en) * | 2010-07-19 | 2012-02-01 | 财团法人资讯工业策进会 | Power saving method of mobile apparatus and communication system thereof |
| CN102469049A (en) * | 2011-06-30 | 2012-05-23 | 重庆重邮信科通信技术有限公司 | Method and device for radio frequency control of mobile terminal |
| CN103442493A (en) * | 2013-09-03 | 2013-12-11 | 英华达（上海）科技有限公司 | Method, device, client, server and system for controlling power driving |
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| CN100391281C (en) | 2008-05-28 |
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