CN101820667A - Power-saving control method - Google Patents
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- CN101820667A CN101820667A CN200910119957A CN200910119957A CN101820667A CN 101820667 A CN101820667 A CN 101820667A CN 200910119957 A CN200910119957 A CN 200910119957A CN 200910119957 A CN200910119957 A CN 200910119957A CN 101820667 A CN101820667 A CN 101820667A
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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
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The invention discloses a power-saving control method, comprising the following steps of: determining parameters of a power-saving mode, wherein the parameters include at least one of the length of an initial dormancy window, the length of a final dormancy window, the length change law of the dormancy window and the distribution law of monitoring windows; and carrying out power saving control according to the parameters. Through the technical scheme of the invention, the mean value of delay of the service can be kept in the QoS (Quality of Service) range required by the service.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of power-saving control method.
Background technology
In the WiMAX standard, the power saving management is stipulated.In the 802.16e agreement, its medium access control system (Media Access Control, abbreviating MAC as) layer protocol defined operation of sleep mode, park mode is travelling carriage (Mobile Station, abbreviate MS as) to serving BS (Base Station, abbreviate BS as) sleep window that changes according to certain rule at certain business that is provided with of reservation, when all business are all in sleep window, (can not obtain time zone), be on the angle of serving BS broadcasts, uplink service and downlink business, this MS is all unavailable, promptly, can not obtain in the time zone, can't carry out transfer of data between serving BS broadcasts and the MS.Pass through park mode, MS can close R-T unit and make control system enter power down mode according to oneself requirement, reduces the energy consumption of MS, and can save the air interface resource of serving BS broadcasts, make the air interface resource that saves to provide service for more MS.
At present, in the 802.16e agreement, business is divided into 4 kinds of COS: the frequency range of non-request distributes (Unsolicited Grant Service, abbreviate UGS as), real time polling service (Real-Time Polling Service, abbreviate rtPS as), non real-time poll services (Non Real-Time Polling Service, abbreviate nrtPS as) and the service of doing one's best (Best effort abbreviates BE as).
Below UGS, rtPS, nrtPS and BE4 kind business features are described.
The UGS:UGS business is the highest business of priority, and when carrying out the business transmission of UGS COS, MS need not send polling request to BS at every turn when carrying out transfer of data, but after MS inserts BS, can satisfy this professional data demand with fixing bandwidth.Particularly, just provide the space of data transmit-receive, be applicable to the CBR business that does not have the voice coder of silence compression code stream, T1/E1 business and so on for such business every fixing superframe.
RtP: when carrying out the transmission of rtP business, carry out before the transfer of data, MS can send the bandwidth application to BS, carries the required bandwidth of this data transfer in this bandwidth application, like this, though can optimize transmission rate, has also increased the expense of signaling at every turn.Such business is mainly used in the real-time multimedia business, for example, video flowing and audio stream, have silence compression audio stream then be called subclass under such, be called ertPS (real-time polling service of expansion), such business generally is RT-VR (variable Rate in real time) business.
NrtPS: non real-time is meant: the starting stage that is not transfer of data just proposes the transmission application, but need certain hour could obtain once polled chance, though the nrtPS business has certain protection, but rank is lower, and such business mainly is NRT-VR (non real-time variable Rate) business.
BE: when carrying out the professional transmission of BE, there is unnecessary bandwidth just can allow the BE business to send application, and the competition bandwidth, so the protection of BE business is relatively poor.
The sleep for electricity saving pattern that different types of service is corresponding different, the sleep for electricity saving pattern to different service types describes below.At this four classes business, the 802.16e_MAC layer protocol has provided three kinds of dormancy algorithms.
Dormancy algorithm 1: sleep window exponential increasing algorithm is applicable to the connection of BE, NRT-VR type service.
The dormancy mechanism of dormancy algorithm 1 is: when business entered park mode, promptly park mode was activated at a certain frame, and then current sleep window is set to initial value, and begin every frame from next frame and subtract 1, and begin counting, when counting reached 0, MS revived and enters audit window.If MS does not receive the signaling of leaving park mode at audit window, after audit window finishes, then continue to enter next sleep window adjacent with above-mentioned current sleep window, the length of this sleep window is 2 times of current sleep window, but can not surpass the max-thresholds of the sleep window that sets in advance.According to this dormancy mechanism, after finishing, each audit window enters dormancy, and, current sleep window=min (the preceding sleep window of 2*, maximum sleep window radix * 2
Maximum sleep window index)
By dormancy algorithm 1, the audit window of sleep window and fixed size is staggered in time.In the monitoring phase, MS and BS can carry out the transmission of signaling and data, can save energy and interface-free resources effectively in rest period.
Dormancy algorithm 2: uniformly-spaced the sleep window algorithm is adapted to the connection of UGS, RT-VR type
The dormancy mechanism of dormancy algorithm 2 is: enter park mode in business, promptly park mode is after a certain frame is activated, and then current sleep window is set to initial value.And from next frame begin every frame subtract 1 the counting, when counting reached 0, MS revived and enters audit window.If MS does not receive the signaling that finishes sleep window at audit window, then after finishing, audit window enters sleep window next time, the length of this sleep window and the equal in length of current sleep window.
As can be seen, park mode 2 times, the sleep window of fixed size and audit window are staggered in time.In the monitoring phase, MS and BS can carry out the transmission of signaling and data, can save energy and interface-free resources effectively in rest period.
Dormancy algorithm 3: single dormancy algorithm is applicable to that multicast and signaling transmit such and be used for that multicast is connected and bookkeeping.
The dormancy mechanism of dormancy algorithm 3 is: after a certain frame activated such dormancy algorithm, MS entered current sleep window, and the length of this sleep window equals preset initial value, and begin every frame from next frame and subtract 1, when counting arrived 0, dormancy finished, and MS returns to active state.
Dormancy algorithm 3 with the difference of above-mentioned two kinds of dormancy algorithms is: in dormancy algorithm 3, only can enter a sleep window with preset length, and, after the dormancy in this sleep window finishes, dormancy will finish, and can not enter next sleep window.
The real-time multimedia business generally is classified as RT type of service (business that real-time requirement is arranged), in order to guarantee professional real-time requirement, can select dormancy algorithm 2 to carry out the power saving management.For example, when the power saving management is carried out in the speech business of silence compression, generally can adopt dormancy algorithm 2.The sleep procedure of employing dormancy algorithm 2 as shown in Figure 1, when the speech business by 2 pairs of silence compression of dormancy algorithm manages, can not distinguish the active period and the quiet period of speech business stream, during the active period or during the quiet period, for satisfying service quality, all can uniformly-spaced revive and monitor and the data transmission according to the space requirement of active period.
In order to guarantee professional service quality (Quality of Service, abbreviate QoS as), when the length of sleep window is set, the time delay (delay) that must guarantee to produce because of dormancy is less than the queuing delay of this business permission in the terminal generation, and the length that therefore sleep window is set can not be excessive.Like this, because the length of the sleep window in the quiet period is less, can cause invalid monitoring number of times too many, the energy loss that causes because of state switching and monitoring be can not ignore, so when adopting dormancy algorithm 2, it is not high to economize electrical efficiency, can not reach the purpose of power and energy saving.
Summary of the invention
Consider that the above problem that exists in the correlation technique one of at least proposes the present invention, for this reason, main purpose of the present invention is to provide a kind of power-saving control method, to address the above problem.
According to one aspect of the invention, provide a kind of power-saving control method.
Power-saving control method according to the present invention comprises: determine the parameter of battery saving mode, parameter comprise following one of at least: initial sleep window length, final sleep window length, the length variations rule of sleep window, the audit window regularity of distribution; According to the parameter control of economizing on electricity.
According to one aspect of the invention, provide a kind of power-saving control method.
Power-saving control method according to the present invention comprises: the business of terminal comprises active period and the quiet period that periodically replaces, and wherein, active period adopts different battery saving modes with quiet period.
According to one aspect of the invention, provide a kind of power-saving control method.
Power-saving control method according to the present invention comprises: determine the parameter of battery saving mode, wherein, parameter comprise following one of at least: the length variations rule of initial dormancy period length, final dormancy period length, dormancy period; According to the parameter control of economizing on electricity.
According to one aspect of the invention, provide a kind of power-saving control method.
Power-saving control method according to the present invention comprises: the battery saving mode of terminal is made of multiple battery saving mode, and wherein, each battery saving mode all constitutes by a series of dormancy periods that change according to certain rule.
By above-mentioned at least one technical scheme of the present invention, the present invention proposes a kind of new electricity-saving mechanism, consider that speech business alternately is made of active period and quiet period, and the district's duration characteristic of mourning in silence, propose to be suitable for the new electricity-saving mechanism of speech business, and made professional time delay average within the QoS of this business need scope.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is according to the economize on electricity control schematic diagram that has a parameter in the dormancy algorithm 2 of correlation technique;
Fig. 2 is the flow chart according to the power-saving control method of the inventive method embodiment one;
Fig. 3 is the economize on electricity control schematic diagram according to method shown in Figure 2;
Fig. 4 is the flow chart according to the power-saving control method of the inventive method embodiment two;
Fig. 5 is the economize on electricity control schematic diagram according to method shown in Figure 4;
Fig. 6 is the flow chart according to the power-saving control method of the inventive method embodiment three;
Fig. 7 is the flow chart according to the power-saving control method of the inventive method embodiment four;
Fig. 8 is the battery saving mode distribution schematic diagram one according to method shown in Figure 7;
Fig. 9 is the battery saving mode distribution schematic diagram two according to method shown in Figure 7.
Embodiment
Functional overview
What the present invention was primarily aimed at is the real-time multimedia business, and the type of common real-time multimedia business mainly is voice, and video traffic is the main business of carrying in the WiMAX system.Inhomogeneous multimedia service, professional burst mechanism also has difference.In the business classification that 802.16e has provided, multimedia service is included in this type of service of rtPs, is applicable to uniformly-spaced sleep window algorithm of power-saving type II--.And the main path signal in the actual real-time multimedia Business Stream mostly is voice signal, MS is in the process of single channel voice communication, normally active period (talk spurt) and quiet period (silence) are mutual occurs, the average that active period continues duration is 1.587s, quiet period continues duration and treats that average is 1.004s, as can be seen, the lasting duration of this two states all is a stochastic variable, meets negative exponent and distributes.Under active period, transfer of data is uniformly-spaced to produce (for example: G.711 coded frame is spaced apart 20ms), and entering quiet period does not then have transfer of data for a long time.
Speech business comprises active period and quiet period, and the active period length of speech business and quiet period distribution of lengths all meet negative exponent and distribute.Wherein, active period has the speech data transmission, but unnecessary every frame all transmits data, and quiet period does not have voice data transmission.Therefore, can make full use of the speech business characteristic and design the electricity-saving mechanism that is fit to speech business.
Carry out the power saving management in order to make full use of the speech business characteristic, can adopt the audit window and the sleep window of fixed intervals in active period; And the sleep window that adopts binary system to successively decrease in quiet period.When each sleep window finished in the quiet period, terminal monitored whether need to enter active period at audit window, if do not need to enter active period, then continues next sleep window; After each sleep window finishes, need enter active period if listen at audit window, then the battery saving mode according to active period carries out power saving, promptly adopts the audit window and the sleep window of regular length; Listen in active period and need enter quiet period, then the battery saving mode according to quiet period carries out power saving.Need satisfy the requirement of two aspects to quiet period sleep window Design of length.Be at utmost power saving on the one hand, initial dormancy reduces quiet period sleep window number so as far as possible as far as possible near the length of quiet period; On the other hand in order to satisfy the qos requirement of speech business, also need timely the voice responsive data in quiet period and enter active period, this needs sleep window short as far as possible.The demand on this two sides is a contradiction, and this just must need according to the statistics duration regularity of distribution of quiet period sleep window Changing Pattern in the quiet period to be designed, on the basis of satisfying the QoS characteristic, and power saving as far as possible.
Under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment one
According to the embodiment of the invention, provide a kind of power-saving control method.
Fig. 2 is the flow chart according to the power-saving control method of the embodiment of the invention, this method is mainly used in right length and meets the control of economizing on electricity of business that negative exponent distributes, for example, if meeting negative exponent, the quiet period length of speech business distributes, then can change according to the sleep window length of this method to quiet period, as shown in Figure 2, this method may further comprise the steps (step S202 is to step S204).
Step S202, battery saving mode comprises that following parameter one of at least: initial sleep window length, final sleep window length, the length variations rule of sleep window, the audit window regularity of distribution, particularly, can the parameter of this battery saving mode be provided with, afterwards, if terminal need be by the control of economizing on electricity of this battery saving mode, the base station can be notified to terminal with the parameter of this battery saving mode;
Step S204 when entering battery saving mode, as current sleep window length, determines the length of next sleep window with initial sleep window length according to the length of the length variations rule of sleep window and final sleep window.
In specific implementation process, at first battery saving mode is provided with: the first, the length (that is, initial sleep window length mentioned above) of first sleep window that enters quiet period is set, and the length of this first sleep window can be provided with as required flexibly, for example, 640ms; Second: the length of final sleep window is set, and this sleep window length also can be provided with as required flexibly, for example, and 160ms, 80ms etc.; The 3rd, the length variations rule of sleep window is set, main thought is: the length of current sleep window is carried out the computing of mathematical formulae, and with the interim length of calculated result as next sleep window, for example, this Changing Pattern can for: with half interim length of current sleep window length as next sleep window; The 4th, the audit window regularity of distribution is set.For convenience, length with first sleep window is 640ms below, final sleep window length is 160ms, the length variations rule of sleep window is that half the interim length as next sleep window with current sleep window length is that example describes, like this, can can obtain the length of next sleep window according to the length of the length variations rule of sleep window and final sleep window, promptly, the interim length of next sleep window and the length of final sleep window are compared, and incite somebody to action the wherein length of a bigger next sleep window of conduct.By this battery saving mode, because initial sleep window is bigger, can effectively reduce the number of times of reviving of MS in the quiet period, reach and save the purpose that energy switches and monitor energy.
Terminal or base station are by the voice coder code stream, detect/(this operation can realize by existing method after the lang sound business enters into quiet period, for example, present speech coding comprises the detection option of mourning in silence), at first can determine first sleep window, first sleep window (promptly, initial sleep window above) length is 640ms, and the current window that proceeds to is defined as current sleep window, because the current window that proceeds to is first sleep window, then this first sleep window is current sleep window.
After first sleep window finishes, if terminal does not receive one of following information at audit window: business, professional indication, withdraw from the signaling indication of battery saving mode, then enter next sleep window immediately, length variations rule according to above-mentioned sleep window, the length of first sleep window can reduce half, promptly, 320ms compares this 320ms and final sleep window length 80ms, and with the wherein bigger length as second sleep window, like this, the length of second sleep window is 320ms, and at this moment, second sleep window is new current sleep window;
After first sleep window finishes, if terminal receives one of following information at audit window: professional, the professional signaling indication of indicating, withdraw from battery saving mode, then withdraw from current battery saving mode.
According to said method, length variations rule according to above-mentioned sleep window, obtain the length of the 3rd sleep window by the length of second sleep window, by that analogy, if the interim length of amended next sleep window equals 80ms, then before business enters active period, keep the length of 80ms as new current sleep window.Like this,, in this battery saving mode, can obtain the length of next sleep window: the length=Max of next sleep window (length of the current sleep window of 0.5*, final sleep window length) according to following formula according to the length variations rule of sleep window.Need to prove that if the length of next sleep window equals final sleep window length, then before withdrawing from this battery saving mode, the length of follow-up sleep window no longer changes, and is equal to each other, and is final sleep window length.
By the sleep window of this exponential decrease, it is very fast that the length of sleep window reduces speed ratio, can return to smaller listening intervals very soon after minority is revived several times, like this, can guarantee that the time delay average is within the QoS of business need scope.
Preferably, as shown in Figure 3, MS or BS on detecting/downlink voice flows to into the after date of mourning in silence, can start above-mentioned power-saving control method by signaling MOB_SLP-RSP, and after Signalling exchange, enter initial sleep window, and should initial sleep window as current sleep window, after current sleep window finishes, if do not need to enter active period, then pass through formula: the length=Max of next sleep window (length of 0.5* current window, final sleep window length), enter next sleep window, with this next one sleep window as new current sleep window, according to above-mentioned formula, by that analogy, if the length of certain next sleep window equals final sleep window length, then before withdrawing from this battery saving mode, the length of the sleep window after certain next sleep window is final sleep window length.
In addition, when business was in hibernation, when sleep window finished, MS revived and monitors, if there is not data up-downgoing transmission, then continued to enter next sleep window.
Above-mentioned battery saving mode goes for professional quiet period length and meets the business that negative exponent distributes, for example, and the business of silence compression type.
The technical scheme that provides by the embodiment of the invention, the present invention proposes a kind of new electricity-saving mechanism, considered the traffic performance of voice silence interval, the sleep window of quiet period is negative exponent and successively decreases, make full use of professional characteristic, can save the efficient of energy and air resource, and make professional time delay average within the QoS of this business need scope.
And this mechanism can obtain the support of speech coding, detections of mourning in silence of existing voice coding, and scheme only realizes and need effectively get final product in the data packet head prompting detection of mourning in silence.
Method embodiment two
According to the embodiment of the invention, a kind of power-saving control method is provided, wherein, this method comprises: business comprises active period and the quiet period that periodically replaces, wherein, active period adopts different battery saving modes with quiet period.
Because active period adopts different battery saving modes with quiet period, when then carrying out the power saving management, need between active period and quiet period, carry out the conversion of battery saving mode, perhaps, carry out the conversion of battery saving mode between quiet period and the active period.Wherein, the conversion of battery saving mode can be finished by the signaling indication, also can finish by implicit indication.Should implicit indication be meant: active period indication in the professional corresponding coding or quiet period indication, for example, for voice service, implicit indication can be active period indication or the quiet period indication in the speech coding.
Adopt different battery saving modes to be specifically described to active period and quiet period below:
In active, the battery saving mode of active period can be represented by sleep window and audit window that the cycle replaces, wherein, the length of audit window can adopt fixed value, and the length of sleep window can adopt fixed value or binary system increment mode or other rule to change.
In quiet period, the battery saving mode of quiet period is represented by alternatively distributed sleep window of cycle and audit window, and the battery saving mode of described quiet period comprises following parameter one of at least: initial sleep window length, final sleep window length, the Changing Pattern of sleep window, audit window distribution of lengths rule.Wherein, the thinking of wanting of the length variations rule of sleep window is: the length of current sleep window is carried out the computing of mathematical formulae, and with the interim length of calculated result as next sleep window, for example, this Changing Pattern can for: with half interim length of current sleep window length as next sleep window, afterwards, can and obtain the length of next sleep window according to the length of this Changing Pattern and final sleep window, and with next sleep window as new current sleep window.
In addition, when current sleep window finishes, if do not receive one of following information at audit window: the instruction of current battery saving mode is indicated, withdrawed to professional, as to enter active period business, then enters next sleep window; If terminal receives one of following information at audit window: the signaling indication of active period is indicated, entered to professional, as to enter active period business, then is transformed into the battery saving mode of active period.
Below in conjunction with accompanying drawing the power-saving control method shown in the embodiment of the invention two is described, as shown in Figure 4, this method may further comprise the steps (step S402 is to step S406).
Step S402, terminal is obtained the battery saving mode parameter of active period and quiet period, and the battery saving mode parameter of active period comprises: the length of audit window is set to fixed value, and the length of sleep window is set to pattern or other Changing Patterns that fixed value or binary system increase progressively; The battery saving mode of quiet period comprises following parameter one of at least: initial sleep window length, final sleep window length, the Changing Pattern of sleep window, audit window distribution of lengths rule.
Step S404, terminal detects and enters quiet period, with the initial sleep window length of the quiet period of the business length as current sleep window;
Step S406, in quiet period, when current sleep window finishes, if do not receive one of following information at audit window: the instruction of current battery saving mode is indicated, withdrawed to professional, as to enter active period business, then according to the length of the length variations rule of sleep window and final sleep window with obtain the length of next sleep window, and with next sleep window as new current sleep window.
In specific implementation process, at first battery saving mode is provided with: the first, the length (that is, initial sleep window length mentioned above) of first sleep window that enters quiet period is set, and the length of this first sleep window can be provided with as required flexibly, for example, 640ms; Second: the length of final sleep window is set, and this sleep window length also can be provided with as required flexibly, for example, and 160ms, 80ms etc.; The 3rd, the length variations rule of sleep window is set, main thought is: the length of current sleep window is carried out the computing of mathematical formulae, and with the interim length of calculated result as next sleep window, for example, this Changing Pattern can for: with half interim length of current sleep window length as next sleep window; The 4th, the audit window regularity of distribution is set.For convenience, length with first sleep window is 640ms below, final sleep window length is 160ms, the length variations rule of sleep window is that half the interim length as next sleep window with current sleep window length is that example describes, like this, can can obtain the length of next sleep window according to the length of the length variations rule of sleep window and final sleep window, promptly, the interim length of next sleep window and the length of final sleep window are compared, and incite somebody to action the wherein length of a bigger next sleep window of conduct.By this battery saving mode, because initial sleep window is bigger, can effectively reduce the number of times of reviving of MS in the quiet period, reach and save the purpose that energy switches and monitor energy.
Terminal or base station are by the voice coder code stream, if detect/(this operation can realize by existing method after the lang sound business enters into active period, for example, present speech coding comprises enlivens detection option), sleep window during then with professional active period is defined as a fixed value, that is, as long as this business is in active period, each sleep window in is identical value during this period; Perhaps, according to the sleep window in the binary system increment mode change active period.
Terminal or base station are by the voice coder code stream, detect/(this operation can realize by existing method after the lang sound business enters into quiet period, for example, present speech coding comprises the detection option of mourning in silence), at first can determine first sleep window, first sleep window (promptly, initial sleep window above) length is 640ms, and the current window that proceeds to is defined as current sleep window, because the current window that proceeds to is first sleep window, then this first sleep window is current sleep window.
After first sleep window finishes, if terminal does not receive one of following information at audit window: business, enter the business indication of active period, withdraw from the signaling indication of battery saving mode, then enter next sleep window immediately, length variations rule according to above-mentioned sleep window, the length of first sleep window can reduce half, promptly, 320ms compares this 320ms and final sleep window length 80ms, and with the wherein bigger length as second sleep window, like this, the length of second sleep window is 320ms, and at this moment, second sleep window is new current sleep window;
After first sleep window finishes, if terminal receives one of following information at audit window: professional, the professional signaling indication of indicating, withdraw from battery saving mode, then withdraw from current battery saving mode.
According to said method, length variations rule according to above-mentioned sleep window, obtain the length of the 3rd sleep window by the length of second sleep window, by that analogy, if the interim length of amended next sleep window equals 80ms, then before business enters active period, keep the length of 80ms as new current sleep window.Like this,, in this battery saving mode, can obtain the length of next sleep window: the length=Max of next sleep window (length of the current sleep window of 0.5*, final sleep window length) according to following formula according to the length variations rule of sleep window.Need to prove that if the length of next sleep window equals final sleep window length, then before withdrawing from this battery saving mode, the length of follow-up sleep window no longer changes, and is equal to each other, and is final sleep window length.
By the sleep window of this exponential decrease, it is very fast that the length of sleep window reduces speed ratio, can return to smaller listening intervals very soon after minority is revived several times, like this, can guarantee that the time delay average is within the QoS of business need scope.
Preferably, as shown in Figure 5, MS or BS on detecting/downlink voice flows to into the after date of mourning in silence, can start above-mentioned power-saving control method by signaling MOB_SLP-RSP, and after Signalling exchange, enter initial sleep window, and should initial sleep window as current sleep window, after current sleep window finishes, if do not need to enter active period, then pass through formula: the length=Max of next sleep window (length of 0.5* current window, final sleep window length), enter next sleep window, with this next one sleep window as new current sleep window, according to above-mentioned formula, by that analogy, if the length of certain next sleep window equals final sleep window length, then before withdrawing from this battery saving mode, the length of the sleep window after certain next sleep window is final sleep window length.
In quiet period, monitor after MS revives after sleep window finishes, finding has transfer of data, then enters active period; Then adopt the battery saving mode of active period in active period, this battery saving mode can adopt the audit window of regular length, and the sleep window that meets certain Changing Pattern, for example, the length of this sleep window adopts fixed value or binary system increment mode or other rule to change, and after audit window is finished the data transmission, enters sleep window, and the length of sleep window changes according to above-mentioned rule, circulates with this.
The technical scheme that provides by the embodiment of the invention, the present invention is by in the active period and quiet period of business, adopt different algorithms respectively, coordination problem when having solved the coordination of up-downgoing business and real-time multimedia business and comprising multipath media stream, and, can save energy effectively by the application of energy-saving mode in multichannel is coordinated of successively decreasing.
And this mechanism can obtain the support of speech coding, detections of mourning in silence of existing voice coding, and scheme only realizes and need effectively get final product in the data packet head prompting detection of mourning in silence.
Method embodiment three
Fig. 6 is the flow chart according to the power-saving control method of the embodiment of the invention, and as shown in Figure 6, this method may further comprise the steps (step S602 is to step S604).
Step S602, battery saving mode comprises that following parameter one of at least: the length variations rule of initial dormancy period length, final dormancy period length, dormancy period, particularly, the feature of the business that can carry out according to terminal, determine the length variations rule of dormancy period, wherein, dormancy period comprises audit window and sleep window, and the length of dormancy period is the length sum of sleep window and audit window.
Step S604 when entering battery saving mode, as current dormancy period length, determines the length of next dormancy period with initial dormancy period length according to the length variations rule and the length of final dormancy period of dormancy period.
Particularly, can determine the length of next dormancy period according to following three kinds of modes:
Mode one: the length of dormancy period changes according to the binary system production decline law
At first the length with current dormancy period reduces half, interim length as next dormancy period, and obtain the length of next dormancy period according to the interim length of final dormancy period length and next dormancy period, with next dormancy period as new current dormancy period, be specially: the interim length and the final dormancy period length of next dormancy period are compared, and with a wherein bigger length as next dormancy period, for example, can determine the length of next dormancy period according to following formula: the length=Max of next dormancy period (length of the current dormancy period of 0.5*, final dormancy period length), especially, if the interim length of next dormancy period equals final dormancy period length, then before business enters active period, keep the length of final dormancy period length as new current dormancy period.Wherein, the size of the length of initial dormancy period is 640ms, and the size of the length of minimum dormancy period is 160ms or 80ms.
Mode two: the length of dormancy period changes according to the binary system progressive law
At first the length with current dormancy period doubles, interim length as next dormancy period, and obtain the length of next dormancy period according to the interim length of final dormancy period length and next dormancy period, with next dormancy period as new current dormancy period, be specially: the interim length and the final dormancy period length of next dormancy period are compared, and with a wherein less length as next dormancy period, for example, can determine the length of next dormancy period according to following formula: the length=Min of next dormancy period (length of the current dormancy period of 2*, final dormancy period length), if the interim length of next dormancy period equals final dormancy period length, then before business enters active period, keep the length of final dormancy period length as new current dormancy period.
Mode three: the length of dormancy period immobilizes,
If dormancy period immobilizes, then the length of next dormancy period equals the length of current dormancy period, in this mode, and the identical length of each dormancy period etc.
In specific implementation process, audit window at each dormancy period, terminal may receive five indicating sections or all: professional, professional indication, withdraw from current dormancy period indication, change the indication of dormancy period and withdraw from the indication of battery saving mode, terminal can be carried out follow-up operation according to these five indications, for example, audit window at current dormancy period, if do not receive one of following information: professional, the professional indication of indicating, withdrawing from current dormancy period, the sleep window that then enters current dormancy period; Perhaps, audit window at current dormancy period, if do not receive one of following information: change dormancy period indication, withdraw from the indication of battery saving mode, then according to the dormancy period Changing Pattern length of next dormancy period is calculated according to the length of current dormancy period; Perhaps, at the audit window of current dormancy period, if receive the indication of the length variations rule of change dormancy period, then the length variations rule according to the dormancy period after the change changes the length of next dormancy period or the length of follow-up dormancy period; Perhaps, at the audit window of current dormancy period,, then withdraw from current battery saving mode if receive the indication of withdrawing from current battery saving mode.
At audit window, can indicate the length of next dormancy period to equal initial dormancy period length by signaling, and carry out the variation of dormancy period length according to the length variations rule of dormancy period and the length of final dormancy period.
Method embodiment four
Fig. 7 is the flow chart according to the power-saving control method of the embodiment of the invention, and as shown in Figure 7, this method may further comprise the steps (step S702 is to step S704).
Step S702, the battery saving mode of terminal is made of multiple battery saving mode, and wherein, each battery saving mode is all by a series of dormancy period indications that change according to certain rule;
Step S704, mutual conversion between conversion between the battery saving mode and/or battery saving mode and the non-battery saving mode is finished by clear and definite signaling or implicit indication, particularly, when service feature changes, terminal is carried out the conversion between pairing battery saving mode according to signaling or service feature indication, or the mutual conversion between battery saving mode and non-battery saving mode, wherein, Yin Han indication is meant: the indication of the corresponding service feature in the professional corresponding coding.
Fig. 8 is the schematic diagram of changing between the different battery saving modes, and as shown in Figure 8, battery saving mode 1 is corresponding to service feature 1, and battery saving mode 2 is corresponding to service feature 2, and battery saving mode 3 is corresponding to service feature 3.When changing, when service feature 1 becomes service feature 2, can notify by clear and definite signaling or implicit indication, the battery saving mode 1 of service feature 1 correspondence is converted to the battery saving mode 2 of service feature 2 correspondences; When service feature 2 becomes service feature 3, can notify by clear and definite signaling or implicit indication, the battery saving mode 2 of service feature 2 correspondences is converted to the battery saving mode 3 of service feature 3 correspondences, wherein, it is one of following that clear and definite signaling can comprise: the indication of professional, new business feature indication, conversion battery saving mode (for example, when service feature 2 became service feature 3, the indication of this conversion battery saving mode was meant: be transformed into the indication of battery saving mode 3 by battery saving mode 2); Implicit indication is meant: by signaling the conversion of battery saving mode is not indicated, but change battery saving mode by the indication of the service feature in the operation code, for example, in speech business, can comprise implicit indication by coding in the voice.
Fig. 9 be between the different battery saving modes and battery saving mode and non-battery saving mode between the schematic diagram changed.As shown in Figure 9, battery saving mode 1 is corresponding to service feature 1, and battery saving mode 2 is corresponding to service feature 2, and non-battery saving mode is corresponding to service feature 3.When changing, when service feature 1 becomes service feature 2, can notify by clear and definite signaling or implicit indication, the battery saving mode 1 of service feature 1 correspondence is converted to the battery saving mode 2 of service feature 2 correspondences; When service feature 2 becomes service feature 3, can notify by clear and definite signaling or implicit indication, the battery saving mode 2 of service feature 2 correspondences is converted to the non-battery saving mode of service feature 3 correspondences, wherein, clear and definite signaling is similar with specific implementation and Fig. 9 of the indication of implying, repeats no more here.
Need to prove that Fig. 8 and Fig. 9 only are two concrete examples, in the specific implementation process; for the conversion between the battery saving mode; and the conversion between battery saving mode and the non-battery saving mode can have multiple combination, repeat no more here, but still within protection scope of the present invention.
As above, by means of power-saving control method provided by the invention, the present invention proposes a kind of new electricity-saving mechanism, considered the traffic performance of voice silence interval, the sleep window of quiet period is negative exponent and successively decreases, make full use of professional characteristic, can save the efficient of energy and air resource, and make professional time delay average within the QoS of this business need scope.And this mechanism can obtain the support of speech coding, detections of mourning in silence of existing voice coding, and scheme only realizes and need effectively get final product in the data packet head prompting detection of mourning in silence.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (31)
1. a power-saving control method is characterized in that, described method comprises:
Determine the parameter of battery saving mode, described parameter comprise following one of at least: initial sleep window length, final sleep window length, the length variations rule of sleep window, the audit window regularity of distribution;
According to the control of economizing on electricity of described parameter.
2. method according to claim 1 is characterized in that, described according to described parameter economize on electricity control comprise:
When entering described battery saving mode, as current sleep window length, determine the length of next sleep window according to the length of the length variations rule of described sleep window and described final sleep window with described initial sleep window length.
3. method according to claim 2 is characterized in that, the length variations rule of described sleep window is meant: with half interim length as next sleep window of current sleep window length.
4. method according to claim 2 is characterized in that, described length variations rule and the length of the described final sleep window length that obtains next sleep window according to sleep window comprises:
Compare obtaining the interim length of next sleep window and the length of described final sleep window, and will the wherein bigger length as described next sleep window.
5. method according to claim 2, it is characterized in that, if the interim length of next sleep window equals the length of described final sleep window, perhaps, the interim length of next sleep window equals the length of described final sleep window, then before described business withdraws from current battery saving mode, keep the length of described final sleep window length as follow-up sleep window.
6. method according to claim 2 is characterized in that, determines the length of described next sleep window according to following formula:
Length=the Max of next sleep window (length of the current sleep window of 0.5*, the length of final sleep window).
7. according to each described method in the claim 1 to 6, it is characterized in that the size of the length of described initial sleep window is 640ms, it is one of following that the length of described final sleep window comprises: 160ms, 80ms, 40ms, 20ms, 10ms, 5ms.
8. according to each described method in the claim 1 to 6, it is characterized in that described method also comprises:
After described current sleep window finishes, if terminal does not receive one of following information at audit window: professional, professional indication, withdraw from the signaling indication of described battery saving mode, then enter next sleep window; Perhaps,
After described current sleep window finishes, if terminal receives one of following information at audit window: professional, the professional signaling indication of indicating, withdraw from described battery saving mode, then withdraw from described battery saving mode.
9. power-saving control method is characterized in that:
The business of terminal comprises active period and the quiet period that periodically replaces, and wherein, described active period adopts different battery saving modes with described quiet period.
10. method according to claim 9 is characterized in that, described method also comprises:
Between described active period and described quiet period, carry out the conversion of battery saving mode, perhaps, carry out the conversion of battery saving mode between described quiet period and the described active period;
Wherein, the conversion of described battery saving mode is finished or is finished by implicit indication by the signaling indication.
11. method according to claim 10 is characterized in that,
Described implicit indication is meant: active period indication or quiet period indication in the described professional corresponding coding.
12. require described method, it is characterized in that the battery saving mode that described active period adopts comprises according to right 9:
Sleep window and audit window that the battery saving mode of described active period replaced by the cycle represent that wherein, the length of described audit window adopts fixed value, and the length of described sleep window adopts fixed value or binary system increment mode or other rule to change.
13. require described method according to right 9, it is characterized in that,
The battery saving mode of described quiet period is represented by alternatively distributed sleep window of cycle and audit window;
Wherein, the battery saving mode of described quiet period comprises following parameter one of at least: initial sleep window length, final sleep window length, the Changing Pattern of sleep window, audit window distribution of lengths rule.
14. method according to claim 13 is characterized in that, the length variations rule of described sleep window is meant: with half interim length as next sleep window of current sleep window length.
15. method according to claim 14 is characterized in that, described according to sleep window the length variations rule and the length of final sleep window and the length that obtains next sleep window comprise:
Compare obtaining the interim length of next sleep window and the length of described final sleep window, and will the wherein bigger length as described next sleep window.
16. method according to claim 14, it is characterized in that, if the interim length of next sleep window equals the length of described final sleep window, perhaps, next sleep window length equals the length of described final sleep window, then before described business withdraws from current battery saving mode, keep the length of described final sleep window length as follow-up sleep window.
17. the method according to described in the claim 14 is characterized in that, determines the length of described next sleep window according to following formula:
Length=the Max of next sleep window (length of the current sleep window of 0.5*, the length of final sleep window).
18., it is characterized in that the size of the length of described initial sleep window is 640ms according to each described method in the claim 13 to 17, it is one of following that described final sleep window length comprises: 160ms, 80ms, 40ms, 20ms, 10ms, 5ms.
19., it is characterized in that according to each described method in the claim 13 to 17:
When described current sleep window finishes, if do not receive one of following information at audit window: the instruction of current battery saving mode is indicated, withdrawed to professional, as to enter active period business indication or signaling, then enters next sleep window; If described terminal receives one of following information at audit window: the signaling indication of active period is indicated, entered to professional, as to enter active period business, then is transformed into the battery saving mode of described active period.
20. a power-saving control method is characterized in that, comprising:
Determine the parameter of battery saving mode, wherein, described parameter comprise following one of at least: the length variations rule of initial dormancy period length, final dormancy period length, dormancy period;
According to the control of economizing on electricity of described parameter.
21. method according to claim 20 is characterized in that, described according to described parameter economize on electricity control comprise:
When entering described battery saving mode, as current dormancy period length, determine the length of next dormancy period according to the length of the length variations rule of described dormancy period and described final dormancy period with described initial dormancy period length.
22. method according to claim 21 is characterized in that,
The feature of the business of carrying out according to terminal is determined the length variations rule of dormancy period;
Wherein, described dormancy period comprises audit window and sleep window, and the length of described dormancy period is the length sum of described sleep window and described audit window.
23. method according to claim 21 is characterized in that, the length of described definite next dormancy period comprises:
If dormancy period changes according to the binary system production decline law, half interim length with described current dormancy period as described next dormancy period, and described final dormancy period length and this interim length compared, get a wherein bigger length as described next dormancy period;
If dormancy period changes according to the binary system progressive law, two times of interim length with the length of described current dormancy period as described next dormancy period, and the length of described final dormancy period and this interim length compared, get a wherein less length as described next dormancy period;
If dormancy period immobilizes, then the length of described next dormancy period is remained the length of described current dormancy period.
24. method according to claim 21 is characterized in that,
If the length of next dormancy period equals the length of described final dormancy period, then before described business withdraws from this battery saving mode, keep the length of described final dormancy period length as follow-up dormancy period.
25. method according to claim 21 is characterized in that, determines the length of described next dormancy period according to following formula:
If dormancy period changes according to the binary system production decline law, the length=Max of next dormancy period (length of the current dormancy period of 0.5*, the length of final dormancy period) then;
If dormancy period changes according to the binary system progressive law, the length=Min of next dormancy period (length of the current dormancy period of 2*, the length of final dormancy period) then.
If dormancy period length is constant, then the length of follow-up dormancy period all remains initial dormancy period length.
26., it is characterized in that described method also comprises according to each described method in the claim 21 to 25:
At the audit window of current dormancy period, if do not receive one of following information: professional, the professional indication of indicating, withdrawing from described current dormancy period, the sleep window that then enters described current dormancy period; Or
At the audit window of current dormancy period, if do not receive one of following information: change the length of dormancy period indication, withdraw from the indication of described battery saving mode, then next dormancy period length is determined according to the Changing Pattern of dormancy period; Or
At the audit window of current dormancy period,, then determine the length of described next dormancy period or follow-up all dormancy periods according to the length variations rule of the dormancy period after the change if receive the indication of the length variations rule of change dormancy period; Or,, then withdraw from current battery saving mode if receive the indication of withdrawing from current battery saving mode at the audit window of current dormancy period.
27., it is characterized in that according to each described method in the claim 21 to 25:
At audit window, indicate the length of next dormancy period to equal described initial dormancy period length by signaling, and carry out the variation of dormancy period length according to the length variations rule of described dormancy period and the length of final dormancy period.
28. a power-saving control method is characterized in that,
The battery saving mode of terminal is made of multiple battery saving mode, and wherein, each battery saving mode all constitutes by a series of dormancy periods that change according to certain rule.
29. method according to claim 28 is characterized in that,
Mutual conversion between conversion between the battery saving mode and/or battery saving mode and the non-battery saving mode is finished by clear and definite signaling or implicit indication.
30. method according to claim 29 is characterized in that, when service feature changed, terminal was carried out the conversion between pairing battery saving mode according to signaling or service feature indication, or the mutual conversion between battery saving mode and non-battery saving mode.
31. according to claim 29 or 30 described methods, it is characterized in that,
Described implicit indication is meant: the indication of the corresponding service feature in the described professional corresponding coding.
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