CN104618996A - Method and device for awakening terminal in energy saving state - Google Patents
Method and device for awakening terminal in energy saving state Download PDFInfo
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- CN104618996A CN104618996A CN201510029107.3A CN201510029107A CN104618996A CN 104618996 A CN104618996 A CN 104618996A CN 201510029107 A CN201510029107 A CN 201510029107A CN 104618996 A CN104618996 A CN 104618996A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses method and device for awakening a terminal in energy saving state. The method comprises the steps of arranging a long-cycle tier to an access point (AP); sending an awakening message of the first number to each terminal related to the AP in case that the long-cycle timer is overtime; restarting the long-cycle timer; starting a short-cycle timer when the AP at the network side is to send service data to the AP related terminal; sending awakening message of the second number by the AP when the short-cycle timer is overtime during sending the service data; restarting the short-cycle timer; stopping or deleting the short-circle timer after sending the service data, wherein the timing length of the long-cycle timer is more than that of the short-circle timer; the first number is more than the second number. With the adoption of the method, the problem of failure of sending of the service data or unsmooth sending of the service data due to the terminal in the sleep state can be effectively solved.
Description
Technical field
The present invention relates to communication technical field, particularly relating to a kind of method and apparatus of the terminal for waking power save mode up.
Background technology
Along with the application of mobile Internet and large data, the indoor positioning technologies based on wlan network is more and more very powerful and exceedingly arrogant, has bright application prospect in numerous industries such as retail, hotel, traffic, medical treatment.
Traditional WLAN location technology depends on RSSI signal strength signal intensity, and concrete can be divided into again two kinds of methods below: the triangulation location based on Signal transmissions model and the fingerprint characteristic method based on signal sampling.Due to the impact of the factors such as indoor multipath effect, barrier, RSSI value is very unstable, causes positioning result unreliable based on RSSI value.And the navigation system of a new generation is based on so-called round-trip delay (Round-TripTime, RTT) time, rely on the invariable characteristic of the speed of electromagnetic transmission, overcome the defect of traditional RSSI navigation system, achieve more high accuracy, more stable locating effect.
So-called RTT Active measuring localization method refers to so a kind of positioning means: initiatively send message based on access point (AP) and the measurement behavior carried out, namely, sent measurement request message to terminal (STA) to be measured by the AP of network side, received and measure response message, draw the measurement results such as two-way time, and and then calculate the distance of AP and terminal.
Based in the passive type navigation system of RSSI value, AP only needs the passive message receiving STA around.And RTT proactive system needs the AP initiatively measurement of STA transmission towards periphery request message.Under common application scenarios, such as, under the scene such as market, airport, STA to be positioned is all kinds of handheld terminal, and as mobile phone, PAD etc., this kind of handheld terminal, due to the restriction of battery capacity, often can enter so-called energy saver mode.Within the energy-conservation cycle, cannot carry out effective packet sending and receiving because chip is in park mode, therefore, now AP effectively cannot measure the terminal being in resting state.
Nearly all handheld terminal all frequently can enter park mode, and this is a general phenomenon.Therefore, for RTT measurement and positioning system, in order to can effectively measure, need to solve terminal and cannot receive under power save mode and measure request message and the measurement request message that causes sends unsuccessfully and then cause the problem that measurement mortality is higher.
In addition, play in application at group broadcasting video frequency, also also exist and cause the transmission failure of video traffic data or video traffic data to send slack problem because terminal is in resting state.
Visible, in current Network data transmission applications, extensively also exist and cause business datum transmission failure or business datum to send slack problem because terminal is in resting state.
Summary of the invention
In view of this, the present invention proposes a kind of method and apparatus of the terminal for waking power save mode up, can solve and cause business datum transmission failure or business datum to send slack problem because terminal is in resting state.
The technical scheme that the present invention proposes is:
For waking a method for the terminal of power save mode up, the method comprises:
Access point AP arranges long period timer, and when described long period timer expiry, what each terminal associated to described AP sent the first number wakes message up, and restarts described long period timer;
AP is when network side needs the terminal associated to this AP to send business datum, start short cycle timer, during business datum sends, described AP is when described short cycle timer time-out, what the terminal to described association sent the second number wakes message up, and restart described short cycle timer, after described business datum transmission terminates, stop or deleting described short cycle timer;
Wherein, the timing length of described long period timer is greater than the timing length of described short cycle timer, and described first number is greater than described second number.
For waking a device for the terminal of power save mode up, this device is arranged in access point AP, comprises the first wake module and the second wake module;
Described first wake module, for arranging long period timer, when described long period timer expiry, what each terminal associated to described AP sent the first number wakes message up, and restarts described long period timer;
Described second wake module, when sending business datum for needing the terminal associated to this AP at network side, start short cycle timer, during business datum sends, described AP is when described short cycle timer time-out, and what the terminal to described association sent the second number wakes message up, and restarts described short cycle timer, after described business datum transmission terminates, stop or deleting described short cycle timer;
Wherein, the timing length of described long period timer is greater than the timing length of described short cycle timer, and described first number is greater than described second number.
As seen from the above technical solution, in the embodiment of the present invention, be provided with long period timer and short cycle timer, wherein long period timer continuously effective, short cycle timer is only just effective during actual traffic data sends, and the message that during long period timer expiry, quantity forwarded is relatively many, such as, send the batch message of nearly 10,20, and the message that during short cycle timer time-out, quantity forwarded is relatively less, such as only send 1 message.
Because the message amount sent during long period timer expiry is more, generally, if network side has a large amount of data to issue terminal, terminal will be waken up from resting state, therefore, by long period timer, AP can make the terminal associated with it can not rest on resting state for a long time, and terminal is once wake up from resting state, generally can stay for some time and again determine whether enter resting state, therefore, the start time of business datum is sent to terminal at network side, the probability that terminal is in wake-up states will increase, and, when network side needs to send business datum to terminal, AP also can start short cycle timer, when this short cycle timer time-out, AP sends business datum to network side current needs to it, the terminal that this AP associates sends the less message of number, in other words, AP is by response short cycle timer, terminal transmission frequently and marginally to association wakes message up, therefore terminal is waken up and keeps the probability of wake-up states to increase further.
Therefore, the embodiment of the present invention is combined by long period timer and short cycle timer, the probability waking terminal up can be increased significantly, avoid terminal to enter resting state, thus effectively can solve and cause business datum transmission failure or business datum to send slack problem because terminal is in resting state.
On the other hand, because the timing length of long period timer is longer, response long period timer and send to wake message amount up larger, and the timing length of short cycle timer is shorter, response short cycle timer and send to wake message amount up less, and, long period timer continuously effective, short cycle timer is only effective during business datum sends, therefore, also can avoid sending continually and wake message in a large number up and cause interface-free resources to be wasted, but even if the less transmission frequency of the message amount that single can also be avoided to send too frequently causes interface-free resources to be wasted.
Visible, the embodiment of the present invention is by rationally arranging the term of validity of the timing length of long period timer and short cycle timer, message amount that the response timeout time sends and timer, effectively can not only solve and cause business datum transmission failure or business datum to send slack problem because terminal is in resting state, and, interface-free resources can also be avoided too to waste, save interface-free resources.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the terminal for waking power save mode up that the embodiment of the present invention provides.
Fig. 2 is the schematic diagram waking message in conjunction with the transmission of long and short period timer up that the embodiment of the present invention provides.
Fig. 3 is by arranging clean culture cache tag and broadcasting the principle schematic that cache tag wakes terminal up.
Fig. 4 is the method flow diagram waking terminal in RTT measurement and positioning system up that the embodiment of the present invention provides.
Fig. 5 is the hardware configuration connection layout of the access point AP equipment that the embodiment of the present invention provides.
Fig. 6 is the apparatus structure schematic diagram of the terminal for waking power save mode up that the embodiment of the present invention provides.
Embodiment
Slack problem is sent for causing business datum transmission failure or business datum because terminal is in resting state, applicant carried out following analysis: when there being data message to receive and dispatch, terminal cannot enter power save mode, by the periodic packet sending and receiving with terminal, terminal large probability within the whole time cycle can be made to be in active state.But, if it is mutual that AP and terminal carry out flow that is intensive, that continue, although the power save mode arousal function that can realize ideal, but the mutual empty overhead of flow intensive is like this very large, cause normal access service influenced, therefore, how can keep the effect that the terminal being in power save mode is waken up, as far as possible little expense can be kept again, become the key solved the problems of the technologies described above.
Based on above-mentioned analysis, embodiments providing a kind of method of the terminal for waking power save mode up, good wake-up effect can not only be obtained, and required expense is less, save interface-free resources.
Fig. 1 is the method flow diagram of the terminal for waking power save mode up that the embodiment of the present invention provides.
As shown in Figure 1, this flow process comprises:
Step 101, access point AP arranges long period timer, and when described long period timer expiry, what each terminal associated to described AP sent the first number wakes message up, and restarts described long period timer.
Step 102, AP is when network side needs the terminal associated to this AP to send business datum, start short cycle timer, during business datum sends, described AP is when described short cycle timer time-out, and what the terminal to described association sent the second number wakes message up, and restarts described short cycle timer, after described business datum transmission terminates, stop or deleting described short cycle timer.
Wherein, the timing length of described long period timer is greater than the timing length of described short cycle timer, and described first number is greater than described second number, and such as, described first number can be more than 2, and described second number can be only 1.
In method shown in Fig. 1, the effect of the long and short period timer of employing controls to send to terminal the frequency waking message up, and that is, when the timer has lapsed, that triggers AP wakes message sending action up.Wherein, the timing length of long period timer is longer, such as 100ms or 200ms etc., and the timing length of short cycle timer is shorter, such as 10ms or 15ms etc.
In addition, when long period timer expires, the quantity waking message up that AP sends is more, what be generally batch wakes message up, such as 10,20, and when short cycle timer expires, the negligible amounts waking message up that AP sends, is generally only several, such as 1,2 etc.
Moreover, long period timer is continuously effective, in other words, as long as be associated with arbitrary terminal under AP, whether there is terminal to roll off the production line in all terminals no matter associated, as long as the terminal number of current association is not 0, then this AP just opens and have long period timer, when this long period timer expires, this AP wakes message up to the terminal transmission of current association.And short cycle timer is only just effective when network side needs the terminal transmission business datum to AP association, in other words, if network side does not need to send business datum to all terminals of the current association of this AP, then AP can not arrange short cycle timer, or short cycle timer is in out-of-work state, when at least one terminal only having AP to know that this AP associates needs to receive the business datum from network side, this AP just can open short cycle timer, and when this short cycle timer expires, the terminal transmission received from the business datum of network side to these needs wakes message up.
Fig. 2 is the schematic diagram waking message in conjunction with the transmission of long and short period timer up that the embodiment of the present invention provides.
As shown in Figure 2, wherein illustrate the number of the message amount of transmission to the thickness of the lines of STA side from AP side, the distance between lines illustrates the length of interval time.Heavy line in Fig. 2 represents the message sending the first number when long period timer expiry, spacing between adjacent heavy line represents the timing length of long period timer, fine line represents the message sending the second number when short cycle timer time-out, and the spacing between adjacent fine line represents the timing length of short cycle timer.As shown in Figure 2, long period timer is continuously effective, and the term of validity of short cycle timer, only need to cover business datum sending duration.
Why method shown in Fig. 1 arranges the term of validity of the timing length of long period timer and short cycle timer, message amount that response timeout event sends and timer in the manner described above, because long period timer is different with the effect of short cycle timer, particularly:
Long period timer is mainly used in preventing terminal to be in power save mode for a long time, that is: although cannot guarantee to keep active state at all kinds terminal juncture, but, exist because there is periodically batch to wake message up, therefore ensure that terminal can not the dormancy long time.Adopt long period timer to have two advantages: one be because timer period is longer, corresponding send to wake message amount up limited, therefore expense is less; Two is for short cycle timer is laid the groundwork, and namely auxiliary short cycle timer realizes more excellent wake-up effect.
Short cycle timer is mainly used in during actual traffic data sends, effectively waking terminal up, guaranteeing that terminal juncture is in active state, and the business datum that therefore effect of short cycle timer is direct and final sends effect and links up with.Relative to long period timer, because the timing length of short cycle timer is shorter, namely the frequency waking message up is sent higher, therefore, the expense that short cycle timer is corresponding wants large, in order to reduce the expense required for short cycle timer as far as possible, in the embodiment of the present invention, the effective time of short cycle timer only needs to cover actual business datum transmitting time section, active state is in protection terminal during actual traffic data sends, after business datum transmission terminates, short cycle timer can be stopped, so that by less cost, obtain good business datum and send effect.Such as, when applying the embodiment of the present invention in RTT positioning measurment system, the effective time of short cycle timer only needs the time period covering needs measurement, namely only need to cover RTT measuring period, thus during network side performs RTT measurement action, make terminal be in active state, measure after terminating and can stop short cycle timer.
In the embodiment of the present invention, long period timer can play auxiliary effect for short cycle timer, iff use short cycle timer, is difficult to obtain good wake-up effect.This is because, the time point that AP receives from the measurement request of server is uncertain, if there is no long period timer, terminal is probably in resting state for a long time, once terminal is in resting state for a long time, unless a large amount of data interactions, a small amount of data interaction is generally difficult to wake terminal up, therefore, what short cycle timer time-out caused wakes message sending action on a small quantity up and can not wake terminal up.Therefore, the embodiment of the present invention is combined by long and short period timer, can realize ideal wake-up effect.
Visible, method shown in Fig. 1 is by rationally arranging the term of validity of the timing length of long period timer and short cycle timer, message amount that the response timeout time sends and timer, effectively can not only solve and cause business datum transmission failure or business datum to send slack problem because terminal is in resting state, and, interface-free resources can also be avoided too to waste, save interface-free resources.
Although the method that the long and short cycle timer shown in Fig. 1 combines can obtain good wake-up effect, but, from the test result of reality various terminal on the market, in order to save electric power, terminal meeting " moves heaven and earth ", power save mode will be entered as occasion serves, therefore, in order to obtain better wake-up effect, the embodiment of the present invention is on the basis of method shown in Fig. 1, by network side " deception " method, improve wake-up effect further.
Network side " deception " method make use of IEEE 802.11 agreement to the regulation of terminal energy-efficient treatment flow process, namely terminal periodically will check the cache tag in beacon message, obtains these buffer memory messages when finding that there is the message issuing self by certain interaction flow.After terminal finds AP to be cached with the message to self, can spend extra time-triggered protocol, that is, the time that this terminal keeps active can be elongated.
Therefore, the embodiment of the present invention, by being 1 by the cache tag set in beacon message, showing that network side has data will issue this terminal, wakes this terminal up.
But there are two kinds of cache tag in beacon message, one is broadcast cache tag, and another kind is the clean culture cache tag for single terminal, is specifically 1 by any cache tag set, applicant carried out following analysis:
Terminal type is on the market extensive, and the concrete energy-efficient treatment flow process of its behind there are differences, and the terminal of some manufacturer can process broadcast cache tag, but the terminal of other manufacturer can not process the mark of these broadcast buffer memorys.Why occur such difference, mainly, better energy-saving effect is pursued by a class manufacturer, namely thinks that broadcast buffer memory message sends to all terminals, a not too important category information, therefore can selectively ignore.
Based on above-mentioned analysis, in the embodiment of the present invention, preferably, by in beacon message, for network side needs, to the clean culture cache tag of the terminal of its transmission business datum, the set of non-broadcasting cache tag is 1, this is because clean culture cache tag is arranged separately for each terminal, be that is AP be certain terminal buffers message specially, usually, this terminal does not have " reason " not go process.This is also be that 1 to compare broadcast cache tag set be 1 reason with better wake-up effect by the set of clean culture cache tag.
Further preferably, can by the broadcast cache tag in beacon message and the clean culture cache tag needing to send the terminal of business datum to it for network side all set be 1, thus improve wake-up effect further.
About the concrete setting broadcasting cache tag and clean culture cache tag, can carry out in the TIM information field of IEEE 802.11 agreement." Partial Virtual Bitmap " in TIM information field can arrange above-mentioned mark, and wherein the bit representative broadcast cache tag of AID0 correspondence position, the bit of other AID value (1 ~ 2007) correspondence positions represent clean culture cache tag.
Fig. 3 is by arranging clean culture cache tag and broadcasting the principle schematic that cache tag wakes terminal up.
As shown in Figure 3, AP periodically sends beacon message, be 1 by the set of broadcast cache tag in each beacon message, and, for associate with this AP and network side needs to send to it terminal of business datum, be 1 by clean culture cache tag corresponding for described terminal also set, corresponding terminal is after receiving beacon message, detect broadcast cache tag and for this terminal clean culture cache tag all set be 1, therefore can stay for some time wait-receiving mode buffer memory message, namely during this period of time keeps wake-up states.
Above-mentioned network side " deception " method can improve the active time needing the terminal receiving business datum to a certain extent, but, due to foundation IEEE 802.11 agreement, by the cache tag in beacon message, terminal checks whether AP has buffer memory to the message of oneself, if had, then terminal can stay for a while more, but be also only limitted to a less time period, because in fact AP is not really terminal buffers message at all, so terminal continues to enter power save mode after having stopped less time period.Therefore, the method of independent application network side " deception " is not ideal to the effect that terminal is waken up, but because the embodiment of the present invention combines by it with based on the network side of long and short cycle timer method of giving out a contract for a project, therefore, wake-up effect can be improved to a certain extent.
The embodiment of the present invention is by method of giving out a contract for a project based on the network side of long and short cycle timer, particularly this network side method of giving out a contract for a project combines with network side " deception " method, can realize effectively waking up to terminal, in reality test, the terminal of the embodiment of the present invention to nearly all type on the market has obviously wake-up effect, further, overall overhead is little.
The above-mentioned terminal wake-up method that the embodiment of the present invention proposes, can be applied to and need the miscellaneous service data forcing to wake terminal up to send in scene, such as, can be applied in RTT measurement and positioning system, for another example, can be applied in the scene of multiple panel computer device multicast video flowing.
Below for RTT measurement and positioning system, exemplarily the application specific details of the embodiment of the present invention under concrete scene is described.
Due to the restriction of the battery capacity of handheld terminal, terminal enters power save mode to save electric power usually through making WLAN chip, especially more frequently can enter the time that power save mode or power save mode continue when data volume is less elongated.Because the terminal being in power save mode cannot respond the message that the external world issues it, the message that is now AP issues terminal there will be packet loss phenomenon.In order to prevent packet loss, the IEEE 802.11 agreement specialized designs handling process of energy-conservation terminal, that is: its AP associated can be notified when terminal enters with when exiting resting state, such associated AP can buffer memory issue terminal message, obtain these buffer memory messages to this associated AP again when terminal is in active state, thus message solves packet loss problem.
The handling process of this energy-conservation terminal can effectively balanced energy conservation demand with reduce message packet loss, but the AP that the functional realiey of this flow process places one's entire reliance upon associated by terminal, namely depend on the power save mode that terminal notices to associated AP and change.And for RTT measurement and positioning system, owing to successfully determining that the coordinate of terminal needs the participation of multiple AP, that is only relevant AP is inadequate.For associated AP, according to the handling process of energy-conservation terminal, when selecting terminal to be in active state, coordinate detection request message can be sent; But for the measurement AP beyond dereferenced AP, because it cannot know the power save mode of terminal, therefore cannot select to give out a contract for a project when terminal is in active state, the phenomenon of packet loss when terminal is in power save mode will be encountered like this.
Visible, in RTT measurement and positioning system, successfully determine that the coordinate of certain terminal needs associated AP and multiple common participation of measuring AP, and measure AP due to the power save mode change not knowing terminal and can cause measuring failed problem.
The embodiment of the present invention is waken up by the terminal of associated AP to power save mode, makes terminal carry out keeping active state when RTT measures at needs, thus protects the success rate of the measurement behavior of measuring AP.Obviously, what the measurement behavior of all measurement AP all should be included in associated AP wakes up in protection act, so just can guarantee that all measurement AP can measure successfully.For this reason, first associated AP can be measured by the mode of server scheduling, and the duration of short cycle timer will cover the time period that all measurement AP carry out RTT measurement, such associated AP just can protect the measurement success of follow-up measurement AP.
The embodiment of the present invention sends frequency and the quantity of waking message up to terminal to be measured based on long and short period Timer Controlling, that is, when long and short timer expires, that triggers AP transmission varying number wakes message up; Wherein, the cycle of macrocyclic timer definition is longer, such as 100ms or 200ms etc., and the cycle of short-period timer definition is relatively short, such as 10ms or 15ms etc., when long period timer expires, what transmission was relatively many wakes message up, and the batch message of such as 10,20, when short cycle timer expires, what quantity forwarded was relatively less wakes message up, such as, only send 1 message.
Wherein, macrocyclic timer is mainly used in preventing terminal to be in power save mode for a long time, and therefore, as long as be associated with at least one terminal needing to carry out RTT measurement under AP, AP is upper with regard to a direct-open long period timer.
The effect of short-period timer be RTT measurement and positioning system is actual measure time effectively wake terminal up, guarantee that terminal juncture is in active state, therefore the wake-up effect of short cycle timer is directly linked up with final measurement effect.
Relative to macrocyclic timer; because the frequency sending message based on short cycle timer is higher; therefore the expense of the transmission message that short-period timer is corresponding wants large; therefore; as long as the time that short cycle timer continues can cover the time period needing to measure; that is: the terminal being used for protecting RTT to measure during action executing is in active state, measures after terminating and can stop this protection.So just by less cost, good measurement effect can be obtained.
But, only use short cycle timer cannot obtain good wake-up effect, because the time point that AP receives from the measurement request of server is uncertain, if there is no the auxiliary of macrocyclic timer, terminal is probably in resting state for a long time, thus causes the inefficacy of short cycle timer.Therefore, by being combined of the timer of long and short period, ideal measurement effect can be realized.
Give out a contract for a project on the basis of method at the network side based on long and short cycle timer, terminal can also be waken up further combined with network side " deception " method, to obtain better wake-up effect.
Fig. 4 is the method flow diagram waking terminal in RTT measurement and positioning system up that the embodiment of the present invention provides.
As shown in Figure 4, this flow process comprises:
Step 401, each AP in RTT measurement and positioning system obtains self lower association STA list of hanging: [STA1, STA2, STA3 ... ].
Step 402, AP is according to the association STA list of self, be 1 by the broadcast cache tag in " the Partial Virtual Bitmap " of the TIM field in Beacon message and the clean culture cache tag set corresponding with each STA that this associates in STA list, and synchronously above-mentioned broadcast cache tag and clean culture cache tag be updated to 1 during renewal with each beacon message.
Step 403, each AP starts the long period timer for self lower association STA hung, and its cycle is Tlong.The event responding this long period timer expiry is: what send the first number to each terminal under association STA list respectively wakes message up.
Wherein, described first number can be multiple, and concrete number is specified by server.Meanwhile, as long as positioning function on AP is opened, as long as the STA number that is, associated under this AP is not 0, whether this long period timer just exists always, roll off the production line irrelevant with certain concrete STA.
Step 404, the AP in RTT measurement and positioning system receives the measurement request from server, and this measurement request comprises the MAC Address list of STA to be measured and measures channel.
Step 405, described AP judges that whether channel to be measured is consistent with the working channel of this AP, if both are consistent, show that this AP is associated AP, enters step 406, otherwise, show that this AP measures AP, directly enter step 409.
Step 406, this AP further obtains current measurement cycle Tprobe from the measurement request of server, this periodic cover current time period of carrying out RTT measurement, and to create the disposable cycle be Tprobe timer.
In this step, RTT measurement period T probe is carried in the measurement request of server transmission, and therefore, server according to actual needs, dynamically can change RTT measurement period T probe.As another kind of embodiment, the value of the RTT measurement period T probe that yet can make an appointment, then AP does not need to perform the action of reading measurement period T probe from the request of measuring, and just can know the value of measurement period T probe.
Step 407, this AP opens or creates short cycle timer, and its cycle is Tshort, and the time out event responding this short cycle timer is: send 1 to the terminal each to be measured in the association STA list of hanging under this AP respectively and wake message up.
Step 408, this AP responds the time out event of disposable Tprobe timer, and namely stopping or deletion take Tshort as the short cycle timer in cycle, terminate the wake actions of current short cycle timer, process ends.
Wherein, the effect of disposable Tprobe timer is the term of validity arranging short cycle timer, short cycle timer is only effective at disposable Tprobe timer run duration, once disposable Tprobe timer expiry, then needs to stop or deleting short cycle timer.In practical application, other modes also can be adopted to arrange the term of validity of short cycle timer, and the present invention does not limit this.
Step 409, the MAC Address that this AP specifies according to server, channel number, message amount send RTT measured message immediately, process ends.
Visible, the embodiment of the present invention is by adopting multiple different mode, comprise network side " deception " method, long and short cycle timer combines method of giving out a contract for a project, can realize effectively waking up to terminal, in actual test, have obviously energy-conservation wake-up effect to the terminal of nearly all type on the market, and overall overhead is not very large.
The scheme that the embodiment of the present invention proposes, as a kind of general energy-conservation terminal wake-up scheme, not only can be applied in RTT measurement and positioning system, and can be used in other application scenarios needing to force to wake terminal up.Such as, can be applied in the scene of multiple panel computer terminal multicast video playback.
In the application scenarioss such as teaching practice in classroom, an important content is had to play specific instructional video by panel computer exactly.From technical standpoint, such video playback all adopts multicast protocol to play usually, and namely video content is by server, the panel computer equipment mailing to each student via AP access device in the mode of multicast message of eating dishes without rice or wine.But in practice, although multicast protocol simplifies the media interactive stream of server and multiple terminal equipment, but due to wireless self, the instantaneous receiving ability of each equipment is different, causes the speed that AP access device mails to the multicast message of eating dishes without rice or wine to become very low.Therefore, generally in AP side, descending single flux of multicast can be transferred to multiple unicast traffic, although flow of eating dishes without rice or wine has been replicated many parts, due to the significant increase of the speed of single flow, overall Consumer's Experience effect is still better than multicast mode.
The mode that multicast turns clean culture is feasible for a small amount of terminal, but just there will be the phenomenons such as card pauses, mosaic when the number of terminal increases.The number considering each classroom student is generally more than 20 people, even more, and therefore the overall performance of system will decline, and originally can play the media of high definition code stream, can only reduce and play SD code stream, affect Consumer's Experience.Why occur these problems, major reason is wherein exactly the dormancy of terminal.
Because panel computer is the flat-type equipment using battery durable, what therefore it can be regular enters park mode.Terminal notices AP access device by the message shifting to an earlier date transmit band Power Save marker bit, but causes the loss of message in the busy meeting of classroom instruction scene radio open, and such AP access device would not be its buffer memory message; Meanwhile, because the multicast code stream from server is real-time, therefore message during this period is all abandoned, and causes card, mosaic phenomenon.
Further, when panel computer multiple on classroom plays high definition code stream, the flow for panel computer dormancy buffer memory of AP side can be caused to overflow, thus cause the loss of Streaming Media message.Although the probability that problem occurs can be reduced by the mode increasing buffering area, but message that is in fact a large amount of, multiple terminal enters, goes out buffer queue, must cause larger delay overhead, and streaming media playing is an application for real-time class, cannot be made up by supplementary message mode afterwards.
Visible, play in application at group broadcasting video frequency, also also exist and cause the transmission failure of video traffic data or video traffic data to send slack problem because terminal is in resting state.
Send slack problem for above-mentioned video traffic data transmission failure or video traffic data, the terminal wake-up method of the embodiment of the present invention can be adopted.Particularly, the associated AP of these terminals is run long period timer, when long period timer expiry, what AP sent the first number to the terminal of association wakes message up, then AP is important at terminal operating, during the business of real-time class, in the actual data traffic data transmission procedure of this business, such as, during reality sends video flowing, start or create short cycle timer, the term of validity of this short cycle timer covers the time period issuing video stream data, during short cycle timer time-out, what AP sent the second number to this terminal wakes message up, by the combination of long and short cycle timer, this terminal is not entered, or enter resting state less, thus promote business datum transmission effect.
For said method, the embodiment of the invention also discloses a kind of access point AP equipment.
Fig. 5 is the hardware configuration connection layout of the access point AP equipment that the embodiment of the present invention provides.
As shown in Figure 5, this access point AP comprises processor, network interface, internal memory and nonvolatile memory, and above-mentioned each hardware is connected by bus, wherein:
Nonvolatile memory, for store instruction codes; The operation that described instruction code completes when being executed by processor is mainly the function completed for the device of the terminal waking power save mode up in internal memory.
Processor, for communicating with nonvolatile memory, reading and performing the described instruction code stored in nonvolatile memory, the function that the device completing the above-mentioned terminal for waking power save mode up completes.
Internal memory, the operation completed when the described instruction code in nonvolatile memory is performed is mainly the function completed for the device of the terminal waking power save mode up in internal memory.
Saying from software view, being applied to the device of the terminal for waking power save mode up in access point AP as shown in Figure 6.
Fig. 6 is the apparatus structure schematic diagram of the terminal for waking power save mode up that the embodiment of the present invention provides.
As shown in Figure 6, this device comprises the first wake module 601 and the second wake module 602.
First wake module 601, for arranging long period timer, when described long period timer expiry, what each terminal associated to described AP sent the first number wakes message up, and restarts described long period timer.
Second wake module 602, when sending business datum for needing the terminal associated to this AP at network side, start short cycle timer, during business datum sends, described AP is when described short cycle timer time-out, and what the terminal to described association sent the second number wakes message up, and restarts described short cycle timer, after described business datum transmission terminates, stop or deleting described short cycle timer.
Wherein, the timing length of described long period timer is greater than the timing length of described short cycle timer, and described first number is greater than described second number.
This device can also comprise the 3rd wake module.
Described 3rd wake module, for determine to associate with this AP and network side needs to send to it terminal of business datum, the clean culture cache tag set that described terminal is corresponding in beacon beacon message is 1.
Described 3rd wake module, can also be used for the broadcast cache tag set in beacon beacon message is 1.
Described first number can be more than 2, and described second number can be 1.
Described business datum can measure request message for Loop Round Trip Time RTT.
Second wake module 602, may be used for receiving RTT and measure request, the measurement channel extracting terminal to be measured request is measured from described, when this measurement channel is identical with the working channel of this AP, start short cycle timer, and the term of validity of described short cycle timer be set to be not less than RTT measuring period, described short cycle timer is restarted after time-out in the described term of validity, after the described term of validity terminates, stop or deleting described short cycle timer.
Wherein, the second wake module 602, may be used for when this measurement channel is identical with the working channel of this AP, from described measurement request, extract RTT information measuring period.
Second wake module 602, can also be used for extracting RTT information measuring period from described measurement request, start short cycle timer and disposable watchdog timer, the timing length of described watchdog timer is not less than described RTT measuring period, at described watchdog timer run duration, restart after described short cycle timer time-out, after described watchdog timer lost efficacy, stop or deleting described short cycle timer.
The device of the above-mentioned terminal for waking power save mode up is as the device on a logical meaning, and it by processor, computer program instructions corresponding in nonvolatile memory is read operation in internal memory to be formed.When the computer program instructions of correspondence is performed, the device of the terminal for waking power save mode up of formation performs corresponding operating for the method according to the terminal for waking power save mode up in above-described embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (12)
1. for waking a method for the terminal of power save mode up, it is characterized in that, the method comprises:
Access point AP arranges long period timer, and when described long period timer expiry, what each terminal associated to described AP sent the first number wakes message up, and restarts described long period timer;
AP is when network side needs the terminal associated to this AP to send business datum, start short cycle timer, during business datum sends, described AP is when described short cycle timer time-out, what the terminal to described association sent the second number wakes message up, and restart described short cycle timer, after described business datum transmission terminates, stop or deleting described short cycle timer;
Wherein, the timing length of described long period timer is greater than the timing length of described short cycle timer, and described first number is greater than described second number.
2. method according to claim 1, is characterized in that, the method also comprises:
AP determines to associate with this AP and network side needs to send to it terminal of business datum, and the clean culture cache tag set that described terminal is corresponding in beacon beacon message is 1.
3. method according to claim 2, is characterized in that, the method also comprises:
Broadcast cache tag set in beacon beacon message is 1 by AP.
4. method according to claim 1, is characterized in that, described first number is more than 2, and described second number is 1.
5. the method according to the arbitrary claim of Claims 1-4, is characterized in that, described business datum is that Loop Round Trip Time RTT measures request message;
AP, when network side needs the terminal associated to this AP to send business datum, starts short cycle timer and comprises:
AP receives RTT and measures request, the measurement channel extracting terminal to be measured request is measured from described, when this measurement channel is identical with the working channel of this AP, this AP starts short cycle timer, and the term of validity of described short cycle timer is set to be not less than RTT measuring period, described short cycle timer is restarted after time-out in the described term of validity, after the described term of validity terminates, stops or deleting described short cycle timer.
6. method according to claim 5, is characterized in that, the term of validity of described short cycle timer is set to be not less than RTT and comprises measuring period:
Start disposable watchdog timer, the timing length of described watchdog timer is not less than RTT measuring period, at described watchdog timer run duration, restarts after described short cycle timer time-out, after described watchdog timer lost efficacy, stopped or deleting described short cycle timer.
7. method according to claim 5, is characterized in that, before this AP starts short cycle timer, the method also comprises:
This AP extracts RTT measuring period from described measurement request.
8. for waking a device for the terminal of power save mode up, it is characterized in that, this device is arranged in access point AP, comprises the first wake module and the second wake module;
Described first wake module, for arranging long period timer, when described long period timer expiry, what each terminal associated to described AP sent the first number wakes message up, and restarts described long period timer;
Described second wake module, when sending business datum for needing the terminal associated to this AP at network side, start short cycle timer, during business datum sends, described AP is when described short cycle timer time-out, and what the terminal to described association sent the second number wakes message up, and restarts described short cycle timer, after described business datum transmission terminates, stop or deleting described short cycle timer;
Wherein, the timing length of described long period timer is greater than the timing length of described short cycle timer, and described first number is greater than described second number.
9. device according to claim 8, is characterized in that, this device also comprises the 3rd wake module;
Described 3rd wake module, for determine to associate with this AP and network side needs to send to it terminal of business datum, the clean culture cache tag set that described terminal is corresponding in beacon beacon message is 1.
10. device according to claim 9, is characterized in that,
Described 3rd wake module, for being 1 by the broadcast cache tag set in beacon beacon message.
Device described in 11. according to Claim 8 to 10 arbitrary claims, is characterized in that, described business datum is sent as Loop Round Trip Time RTT and measures request message;
Described second wake module, request is measured for receiving RTT, the measurement channel extracting terminal to be measured request is measured from described, when this measurement channel is identical with the working channel of this AP, start short cycle timer, and the term of validity of described short cycle timer be set to be not less than RTT measuring period, described short cycle timer is restarted after time-out in the described term of validity, after the described term of validity terminates, stop or deleting described short cycle timer.
12. devices according to claim 11, is characterized in that,
Described second wake module, for when this measurement channel is identical with the working channel of this AP, RTT information measuring period is extracted from described measurement request, start short cycle timer and disposable watchdog timer, the timing length of described watchdog timer is not less than described RTT measuring period, at described watchdog timer run duration, restarts after described short cycle timer time-out, after described watchdog timer lost efficacy, stopped or deleting described short cycle timer.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304359A (en) * | 2016-07-28 | 2017-01-04 | 西北工业大学 | User terminal energy conservation optimizing method and user terminal apparatus under intensive user scene |
| CN106452960A (en) * | 2016-10-11 | 2017-02-22 | 郑州云海信息技术有限公司 | Message timeout determining method and device based on multi-processor system simulation |
| CN107526603A (en) * | 2017-09-20 | 2017-12-29 | 深圳天珑无线科技有限公司 | One kind applies awakening method and device |
| CN108065576A (en) * | 2017-11-29 | 2018-05-25 | 厦门欣维发实业有限公司 | A kind of anti-theft intelligent knapsack and its control method |
| CN109314923A (en) * | 2016-06-30 | 2019-02-05 | 华为技术有限公司 | A kind of website awakening method, relevant device and system |
| CN109922519A (en) * | 2017-12-13 | 2019-06-21 | 芯光飞株式会社 | A kind of operation method of terminal and terminal |
| CN110520840A (en) * | 2019-07-17 | 2019-11-29 | 北京小米移动软件有限公司 | Wake-up signal processing, information issuing method and device, communication equipment and medium |
| WO2021135413A1 (en) * | 2019-12-30 | 2021-07-08 | 华为技术有限公司 | Energy saving control method and related device |
| CN113141626A (en) * | 2021-03-29 | 2021-07-20 | 杭州涂鸦信息技术有限公司 | Event sending method, system, terminal equipment and related device |
| CN116320147A (en) * | 2023-02-17 | 2023-06-23 | 荣耀终端有限公司 | Awakening method and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000617A1 (en) * | 2004-06-29 | 2006-01-05 | Nokia Corporation | Control of a short-range wireless terminal |
| US20080117851A1 (en) * | 2006-11-20 | 2008-05-22 | Masataka Irie | Wireless terminal and wireless terminal control method |
| CN101415147A (en) * | 2007-10-19 | 2009-04-22 | 华为技术有限公司 | Method and apparatus for paging user equipment |
| CN101969605A (en) * | 2010-10-11 | 2011-02-09 | 杭州华三通信技术有限公司 | Method and equipment for determining DTIM interval by AP |
-
2015
- 2015-01-21 CN CN201510029107.3A patent/CN104618996B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000617A1 (en) * | 2004-06-29 | 2006-01-05 | Nokia Corporation | Control of a short-range wireless terminal |
| US20080117851A1 (en) * | 2006-11-20 | 2008-05-22 | Masataka Irie | Wireless terminal and wireless terminal control method |
| CN101415147A (en) * | 2007-10-19 | 2009-04-22 | 华为技术有限公司 | Method and apparatus for paging user equipment |
| CN101969605A (en) * | 2010-10-11 | 2011-02-09 | 杭州华三通信技术有限公司 | Method and equipment for determining DTIM interval by AP |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10972976B2 (en) | 2016-06-30 | 2021-04-06 | Huawei Technologies Co., Ltd. | Station wake-up method, related device, and system |
| CN109314923A (en) * | 2016-06-30 | 2019-02-05 | 华为技术有限公司 | A kind of website awakening method, relevant device and system |
| CN106304359B (en) * | 2016-07-28 | 2019-08-02 | 西北工业大学 | User terminal energy conservation optimizing method and user terminal apparatus under intensive user scene |
| CN106304359A (en) * | 2016-07-28 | 2017-01-04 | 西北工业大学 | User terminal energy conservation optimizing method and user terminal apparatus under intensive user scene |
| CN106452960A (en) * | 2016-10-11 | 2017-02-22 | 郑州云海信息技术有限公司 | Message timeout determining method and device based on multi-processor system simulation |
| CN106452960B (en) * | 2016-10-11 | 2019-09-24 | 郑州云海信息技术有限公司 | It is a kind of based on multicomputer system emulation message time-out determine method and device |
| CN107526603A (en) * | 2017-09-20 | 2017-12-29 | 深圳天珑无线科技有限公司 | One kind applies awakening method and device |
| CN108065576A (en) * | 2017-11-29 | 2018-05-25 | 厦门欣维发实业有限公司 | A kind of anti-theft intelligent knapsack and its control method |
| CN109922519A (en) * | 2017-12-13 | 2019-06-21 | 芯光飞株式会社 | A kind of operation method of terminal and terminal |
| CN110520840A (en) * | 2019-07-17 | 2019-11-29 | 北京小米移动软件有限公司 | Wake-up signal processing, information issuing method and device, communication equipment and medium |
| WO2021007824A1 (en) * | 2019-07-17 | 2021-01-21 | 北京小米移动软件有限公司 | Wake-up signal processing method and apparatus, information issuing method and apparatus, communication device, and medium |
| WO2021135413A1 (en) * | 2019-12-30 | 2021-07-08 | 华为技术有限公司 | Energy saving control method and related device |
| CN113133092A (en) * | 2019-12-30 | 2021-07-16 | 华为技术有限公司 | Energy-saving control method and related equipment |
| CN113141626A (en) * | 2021-03-29 | 2021-07-20 | 杭州涂鸦信息技术有限公司 | Event sending method, system, terminal equipment and related device |
| CN113141626B (en) * | 2021-03-29 | 2022-08-19 | 杭州涂鸦信息技术有限公司 | Event sending method, system, terminal equipment and related device |
| CN116320147A (en) * | 2023-02-17 | 2023-06-23 | 荣耀终端有限公司 | Awakening method and electronic equipment |
| CN116320147B (en) * | 2023-02-17 | 2023-11-17 | 荣耀终端有限公司 | Awakening method and electronic equipment |
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