CN102315906A - Data frame sending method and equipment thereof - Google Patents
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- CN102315906A CN102315906A CN201110281563A CN201110281563A CN102315906A CN 102315906 A CN102315906 A CN 102315906A CN 201110281563 A CN201110281563 A CN 201110281563A CN 201110281563 A CN201110281563 A CN 201110281563A CN 102315906 A CN102315906 A CN 102315906A
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Abstract
The invention provides a data frame sending method and equipment thereof. The method comprises the following steps: selecting a rate with the largest reference throughput as a target rate from all the rates according to the acquired reference throughput of the each rate, wherein the reference throughput of the rate is acquired through updating the reference throughput before the data frame is sent according to sending completion state information of the sent data frame after the data frame is sent by using the rate; sending the current data frame by using the target rate. The equipment comprises: a selection module and a sending module. By using a technology scheme of the invention, the target rate which is appropriate to an actual state of a channel can be selected. Data transmission reliability and network throughputs can be raised by using the target rate to send the data frame.
Description
Technical field
The present invention relates to the network communications technology, relate in particular to a kind of Frame sending method and equipment.
Background technology
WLAN (Wireless Local Area Network; Abbreviate as: popularizing and the development of mobile Internet WLAN) makes the first-selected last grid connect mode of the increasing people of becoming of wireless network.The physics of IEEE 802.11 (PHY) layer has been stipulated different modulation modes, comprises binary phase shift keying (Binary Phase Shift Keying; Abbreviate as: BPSK), QPSK (Quadrature Phase Shift Keying; Abbreviate as: QPSK), quadrature amplitude modulation (the Quadrature Amplitude Modulation of 16 kinds of symbols; Abbreviate as: QAM), 64QAM, orthogonal frequency division multiplexi (Orthogonal Frequency Division Multiplexing; Abbreviate as: OFDM) and the different coding mode, obtained different transmission rates.Wherein, 802.11b support 1,2,5.5,11 MBPSs (Mbps) totally 4 kinds of transmission rates; 802.11a support 6,9,12,18,24,36,48,54Mbps totally 8 kinds of transmission rates; 802.11g support 1,2,5.5,6,9,11,12,18,24,36,48,54Mbps totally 12 kinds of transmission rates, 802.11n then supports 32 kinds of transmission rates at most, the anti-noise ability of different transmission rates is different.Although IEEE802.11a/b/g/n provides the ability of multiple transmission rate in physical layer, in the IEEE802.11 agreement, do not stipulate concrete rate adaptation algorithm, and the rate adaptation algorithm is to influence the principal element that systematic function improves.
Existing carry out the technical scheme that rate adaptation selects and mainly be divided into two types: the first kind is through transfer of data success is for the previous period estimated channel conditions with the statistical information of failure quantity, and then regularly selects a best transfer rate; Second type is directly to be the basis with a physical quantity signal to noise ratio that reflects channel conditions, selects a suitable transmission rate.
First kind rate adaptation algorithm needs every at a distance from a timing statistics window, the first time rate of just having an opportunity to upgrade.If it is too small that window is selected, the frame losing information that then counts can't reflect channel conditions; It is excessive that window is selected, and then speed was upgraded slowly, was difficult to the quick variation of timely adaptive channel.Second type of rate adaptation algorithm utilize physical layer index noise recently estimated channel quality with the decision transmission rate; But in the actual wireless channel; Do not have clear and definite corresponding relation between signal to noise ratio and the transmission rate, so the speed that chooses is difficult to adapt with the actual state of channel.This shows, the adaptively selected speed that goes out of prior art can't be well and the actual state of channel adapt, data transmission credibility is low, network throughput is low.
Summary of the invention
The present invention provides a kind of Frame sending method and equipment, and the speed in order to the actual state of selecting with channel adapts improves reliability of data transmission and network throughput.
The present invention provides a kind of Frame sending method, comprising:
According to the benchmark throughput of the every kind of speed that gets access in advance, the speed of selection reference throughput maximum is as targeted rate from all speed; The benchmark throughput of said speed is after the said speed of use has been sent a Frame; Upgrade and obtain sending the benchmark throughput of said speed before the Frame according to the transmission completion status information of the Frame that is sent, said transmission completion status information comprises sub-message number that Frame comprised of being sent and the sub-message number of sending failure;
Use said targeted rate to send current data frame.
The present invention provides a kind of Frame transmitting apparatus, comprising:
Select module, be used for the benchmark throughput according to the every kind of speed that gets access in advance, the speed of selection reference throughput maximum is as targeted rate from all speed; The throughput of said speed is after the said speed of use has been sent a Frame; Upgrade and obtain sending the benchmark throughput of said speed before the Frame according to the transmission completion status information of the Frame that is sent, said transmission completion status information comprises sub-message number that Frame comprised of being sent and the sub-message number of sending failure;
Sending module is used to use said targeted rate to send current data frame.
Frame sending method of the present invention and equipment get access to the benchmark throughput of every kind of speed in advance, and the maximum speed of selection reference throughput and uses targeted rate to send current data frame as targeted rate from all speed when sending Frame.In technical scheme of the present invention; Through adding up the transmission situation of each Frame; And behind the intact Frame of every transmission according to the benchmark throughput of the transmission completion status information real-time renewal rate of Frame; The benchmark throughput of each speed can in time be reacted the actual state of channel, thereby makes the targeted rate of selecting based on the benchmark throughput can be good at adapting with the actual state of channel, and then has improved reliability of data transmission and network throughput.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the Frame sending method that Fig. 1 provides for one embodiment of the invention;
The flow chart of the Frame sending method that Fig. 2 provides for another embodiment of the present invention;
The flow chart of the Frame sending method that Fig. 3 provides for further embodiment of this invention;
The structural representation of the Frame transmitting apparatus that Fig. 4 provides for one embodiment of the invention;
The structural representation of the Frame transmitting apparatus that Fig. 5 provides for another embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The flow chart of the Frame sending method that Fig. 1 provides for one embodiment of the invention.As shown in Figure 1, the method for present embodiment comprises:
The benchmark throughput of every kind of speed that step 101, basis get access in advance, the speed of selection reference throughput maximum is as targeted rate from all speed.
In the present embodiment, the Frame transmitting apparatus can get access to the benchmark throughput of every kind of speed in advance, and when having Frame to send, the maximum speed of selection reference throughput is sent Frame from all speed.
In various embodiments of the present invention, the actual state that the benchmark throughput of said speed can the real time reaction channel.Change sentence and change, the benchmark throughput of speed is illustrated in when using this rate sending data frame under the current channel conditions, the throughput that network can get access to.
In order to guarantee that the benchmark throughput of every kind of speed can reach the purpose of the actual state of real time reaction channel; The benchmark throughput of speed is specifically obtained in the following manner in the present embodiment: concerning certain speed; After this speed of use has been sent a Frame; Upgrade sending before this Frame the benchmark throughput of this speed according to the transmission completion status information of this Frame, be used for judging employed benchmark throughput when whether this speed can be used for sending next Frame thereby obtain.Wherein, the transmission completion status information of Frame comprises: sub-message number that Frame comprised and the sub-message number of sending failure.Wherein, the 802.11n agreement is sent with polymerized form, and an aggregate packet is that described Frame comprises the experimental process message.After Frame sent completion, the Frame transmitting apparatus will count had send failure for what sub-messages in this Frame.For other 802.11 agreements, for example 802.11a, 802.11b, 802.11g etc. send with non-polymerized form, and the sub-message number that Frame comprised is 1, if this Frame sends failure, the sub-message number of then sending failure also is 1.
By above-mentioned visible; Present embodiment is through the transmission situation of each Frame of statistics; And behind the intact Frame of every transmission according to the benchmark throughput of the transmission completion status information real-time renewal rate of Frame; Make the benchmark throughput of each speed can in time react the actual state of channel, thereby make the targeted rate of selecting based on the benchmark throughput can be good at adapting, help improving reliability of data transmission and network throughput with the actual state of channel.
In this explanation; Speed in the present embodiment can be 1Mbps, 2Mbps, 5.5Mbps, the 11Mbps that 802.11b supports; Can be 6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps, 48Mbps, the 54Mbps that 802.11a supports; Can also be 1Mbps, 2Mbps, 5.5Mbps, 6Mbps, 9Mbps, 11Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps, 48Mbps, the 54Mbps that 802.11g supports, can also be 32 kinds of transmission rates supporting of 802.11n etc.That is to say that in various embodiments of the present invention, the occurrence to speed does not limit.
The targeted rate that step 102, use are selected is sent current data frame.
After selecting targeted rate, the Frame transmitting apparatus uses the targeted rate of selecting to send current data frame.
In the present embodiment, the Frame transmitting apparatus when sending Frame, according to the benchmark throughput of every kind of speed therefrom the maximum speed of selection reference throughput and use targeted rate to send current data frame as targeted rate.Because the transmission situation that the Frame transmitting apparatus of present embodiment can be added up each Frame; And behind the intact Frame of every transmission according to the benchmark throughput of the transmission completion status information real-time renewal rate of Frame; Make the benchmark throughput of each speed can in time react the actual state of channel; Thereby make the targeted rate of selecting based on the benchmark throughput can be good at adapting with the actual state of channel; Speed through the actual state with channel adapts is sent Frame, has improved reliability of data transmission and network throughput.
The flow chart of the Frame sending method that Fig. 2 provides for another embodiment of the present invention.Present embodiment is based on realization embodiment illustrated in fig. 1, and is as shown in Figure 2, and the method for present embodiment also comprises after step 102:
After the transmission of using targeted rate completion current data frame; The Frame transmitting apparatus can be collected the various information relevant with the transmission of this Frame; The sub-message numbers of sub-message number that for example Frame comprised and transmission failure etc., these information are the transmission completion status information of this Frame.Then, the Frame transmitting apparatus upgrades the benchmark throughput of targeted rate, so that the benchmark throughput of targeted rate can reflect channel situation in real time according to the transmission completion status information of the Frame that obtains.
A kind of execution mode of step 103 comprises:
Step 1031, data transmitting equipment are calculated the real-time throughput of targeted rate according to the transmission completion status information of Frame.
Wherein, throughput is meant the transmission completion status information according to current data frame, the throughput of the targeted rate that calculates in real time.For example: the real-time throughput that can calculate targeted rate according to formula (1).
T
cur＝Ti*(1-FLR)(1)
Wherein, T
CurExpression is according to the transmission completion status information of Frame, the real-time throughput of the targeted rate that calculates; Ti representes ideal throughput; FLR representes frame loss rate.
Wherein, the sub-message number that the sub-message number/Frame of failure is comprised during frame loss rate=transmission.Wherein, for agreements such as 802.11a, 802.11b, 802.11g, its frame loss rate or be 100%, or be 0.
Wherein, the transmission time of the size/Frame of ideal throughput=Frame.Wherein, the size of Frame equals the byte number * 8 of Frame.The transmission time of Frame comprises: back off time, frame period time, response time, message and physics head transmission time etc.The size of given Frame and transmission rate that is to say, in case just can calculate the transmission time of Frame, and then also just can calculate ideal throughput.Wherein, when table 1 is depicted as a Frame and comprises 1500 bytes, the corresponding relation between ideal throughput and the transmission rate then.In actual application, the Frame transmitting apparatus can also obtain the pairing ideal throughput of Frame through tabling look-up.
Table 1
Step 1032, data transmitting equipment are upgraded the benchmark throughput of targeted rate according to the real-time throughput of targeted rate.
Wherein, a kind of update mode is: directly with the real-time throughput of the targeted rate benchmark throughput as targeted rate, this execution mode is simple, is easy to realize.The Frame transmitting apparatus adopts this mode to carry out the renewal of benchmark throughput, has the fast advantage of renewal speed.
Another kind of update mode is: according to formula (2) the benchmark throughput of targeted rate is upgraded.
T＝T
old×β+T
cur×(1-β)(2)
Wherein, T is the benchmark throughput after the renewal of targeted rate; T
OldBe the benchmark throughput before the renewal of targeted rate; T
CurReal-time throughput for targeted rate; β is a weight factor, and 0≤β≤1.
Update mode shown in the formula (2) is a kind of exponentially weighted moving average (EWMA) (Exponentially Weighted Moving-Average; Abbreviate as: EWMA) algorithm; This update mode has been taken into account historical throughput and current throughput; And reached the influence that reduces historical throughput gradually through right to use repeated factor, and played smoothing effect, can avoid the benchmark throughput to produce the phenomenon of sudden change owing to abnormal cause.
Further; In the present embodiment, allow network environment, adjust weight factor β in real time according to reality; Can make the benchmark throughput of each speed more accurately and in real time reflect the actual state of channel through adjustment like this, thereby obtain better network performance weight factor β.
Further, after the renewal of accomplishing the benchmark throughput of targeted rate, the benchmark throughput after the renewal of targeted rate is stored, for the transmission of next Frame lays the first stone.
The method of the benchmark throughput of the transmission completion status information updating targeted rate of the use Frame that present embodiment step 103 provides is equally applicable to generate the benchmark throughput of each speed in the step 101.
The Frame sending method of present embodiment; After sending Frame; The transmission completion status information of the Frame that utilization counts on is upgraded the benchmark throughput of targeted rate; Make that the benchmark throughput of each speed can be upgraded in time after use, and then make the actual state that the benchmark throughput of each speed can the real time reaction channel, for the benchmark throughput based on each speed is that subsequent data frame selects more that reasonable target speed lays the foundation; Make when sending Frame, can improve the throughput of reliability of data transmission and network based on the targeted rate of selecting.
The flow chart of the Frame sending method that Fig. 3 provides for further embodiment of this invention.As shown in Figure 3, the method for present embodiment comprises:
Whether step 300, the preset detect cycle of judgement arrive; When judged result for not the time, execution in step 301; When judged result when being, execution in step 302.
Wherein, In order to guarantee that all speed can both be used; In other words be for the benchmark throughput that guarantees all speed can both be real-time the actual state of reaction channel; To avoid certain speed not cause the actual state that its benchmark throughput can not the accurate response channel to cause targeted rate to select irrational situation owing to being used for a long time, present embodiment preestablishes detect cycle, periodically each speed is surveyed to guarantee that all speed can both be used.For example: can be provided with and whenever once survey at a distance from 1 minute.Wherein, the Frame transmitting apparatus can be provided with a probe timer, and detect cycle is carried out timing.When the probe timer timing is reach 1 minute, explain that detect cycle arrives; Otherwise,, detect cycle no show still is described when probe timer timing during less than 1 minute.In addition, when detect cycle arrived, probe timer can begin next detect cycle is carried out timing automatically.
When detect cycle arrives, begin each speed is surveyed, concrete detection method sees the description of step 302 for details.When the detect cycle no show, carry out the selection of targeted rate according to the method that step 301 is described.
When the detect cycle no show; The Frame transmitting apparatus can be according to the benchmark throughput of every kind of speed; The maximum speed of selection reference throughput is as targeted rate from all speed, promptly can adopt Fig. 1 or embodiment illustrated in fig. 2 in method come select target speed.
When detect cycle arrives; The Frame transmitting apparatus can select a speed as targeted rate from all speed at random; Surveying that the preset detect cycle of basis does not stop like this just can guarantee that all speed can both be selected as targeted rate, promptly is used to send Frame.
The targeted rate that step 303, use are selected is sent current data frame, and execution in step 304.
Step 304, according to using targeted rate just to accomplish the transmission completion status information of the Frame of transmission, upgrade the benchmark throughput of targeted rate, and return execution in step 300.
Wherein, when forwarding step 303 again to step 304 to by step 301, its flow process repeats no more at this with embodiment illustrated in fig. 2 identical.
When forwarding step 303 again to step 304 to by step 302; Show after the Frame transmitting apparatus selects a speed as targeted rate at random; The Frame transmitting apparatus uses the speed of selecting at random to send current data frame; And after sending current data frame, according to the transmission completion status information of current data frame the benchmark throughput of this speed of selecting is at random upgraded, so that the benchmark throughput of this speed of selecting at random can reflect the actual state of channel in real time.
Wherein, the embodiment of step 304 can repeat no more at this referring to the description of step 103.
Further, present embodiment is carried out the process that all speed are surveyed when detect cycle arrives, and can control the frequency that all speed is surveyed through the length of adjustment detect cycle, but is not limited to this.For example: the Frame transmitting apparatus can also be carried out the process that all speed are surveyed when the detect cycle no show, and when detect cycle arrival, carries out the operation of the speed of selection reference throughput maximum from all speed as targeted rate.For the maximum speed of execution selection reference throughput from all speed that can be more frequent is sent Frame as targeted rate and with the targeted rate of selecting; To reach the reliability that improves data frame transfer and the purpose of network throughput; In this embodiment; It is very long that detect cycle generally can not be provided with, like this with regard to indirect raising the frequency that all speed are surveyed, more help solving the problem that part speed is not used for a long time.
The Frame sending method of present embodiment; The Frame transmitting apparatus through benchmark throughput selection reference throughput from all speed of each speed relatively maximum as targeted rate; And use targeted rate to send Frame; And, just, upgrade the benchmark throughput of sending the employed targeted rate of this Frame according to the transmission completion status information of the Frame that has just sent at Frame of every transmission; Make the benchmark throughput of each speed can both reflect the actual state of channel in real time, improved reliability of data transmission and network throughput.In addition; Present embodiment also adopts the mechanism of detection; At set intervals, from all speed, select a speed to send Frame at random, guaranteed that each speed all can be used; The benchmark throughput that has guaranteed each speed can reflect the actual state of channel in real time, and reasonable target speed lays the foundation in order to select more based on the benchmark throughput of speed.
The structural representation of the Frame transmitting apparatus that Fig. 4 provides for one embodiment of the invention.As shown in Figure 4, the equipment of present embodiment comprises: select module 41 and sending module 42.
Each functional module of the Frame transmitting apparatus of present embodiment can be used for carrying out the flow process of Frame sending method shown in Figure 1, and its concrete operation principle repeats no more, and sees the description of method embodiment for details.
The Frame transmitting apparatus of present embodiment, when sending Frame, according to the benchmark throughput of every kind of speed therefrom the maximum speed of selection reference throughput and use targeted rate to send current data frame as targeted rate.Because the transmission situation that the Frame transmitting apparatus of present embodiment can be added up each Frame; And behind the intact Frame of every transmission according to the benchmark throughput of the transmission completion status information real-time renewal rate of Frame; Make the benchmark throughput of each speed can in time react the actual state of channel; Thereby make the targeted rate of selecting based on the benchmark throughput can be good at adapting with the actual state of channel; Speed through the actual state with channel adapts is sent Frame, has improved reliability of data transmission and network throughput.
The structural representation of the Frame transmitting apparatus that Fig. 5 provides for another embodiment of the present invention.Present embodiment is based on realization embodiment illustrated in fig. 4, and is as shown in Figure 5, and the equipment of present embodiment also comprises: update module 43.
Update module 43 is used for the transmission completion status information according to current data frame, and the benchmark throughput of targeted rate is upgraded.
Wherein, this update module 43 comprises: computing unit 431 and updating block 432.Computing unit 431 is used for the transmission completion status information according to current data frame, calculates the real-time throughput of targeted rate.Updating block 432 is connected with computing unit 431, and the real-time throughput of the targeted rate that is used for calculating according to computing unit 431 is upgraded the benchmark throughput of targeted rate.
More concrete, updating block 432 can be directly with the real-time throughput of targeted rate benchmark throughput as targeted rate.In addition, updating block 432 can also upgrade the benchmark throughput of targeted rate according to formula (2).
Above-mentioned update module and Qi Ge functional unit can be used for carrying out the flow process of Frame sending method shown in Figure 2, and its concrete operation principle repeats no more, and sees the description of method embodiment for details.
Further, the equipment of present embodiment also comprises: judge module 44, trigger module 45 and selection sending module 46.
Judge module 44 is used to judge whether preset detect cycle arrives.Trigger module 45; Be connected with selection module 41 with judge module 44; Be used in the judged result of judge module 44 for not the time; The benchmark throughput that triggering selection module 41 is carried out according to the every kind of speed that gets access in advance, the speed of selection reference throughput maximum is as the operation of targeted rate from all speed.Select sending module 46, is connected, be used in the judged result of judge module 44 from all speed, selecting a speed as targeted rate at random when being with judge module 44, and use targeted rate transmission current data frame.
Further, the update module 43 of present embodiment also is used for after selection sending module 46 has sent current data frame, according to the transmission completion status information of the Frame of selecting sending module 46 to be sent, upgrading the benchmark throughput of the targeted rate of selecting at random.
Above-mentioned each functional module can be used for carrying out the corresponding flow process in the Frame sending method shown in Figure 3, and its concrete operation principle repeats no more, and sees the description of method embodiment for details.
The Frame transmitting apparatus of present embodiment; Through benchmark throughput selection reference throughput from all speed of each speed relatively maximum as targeted rate; And use targeted rate to send Frame; And,, upgrade the benchmark throughput of sending the employed targeted rate of this Frame according to the transmission completion status information of the Frame of firm transmission at Frame of every transmission; Make the benchmark throughput of each speed can both reflect the actual state of channel in real time, improved reliability of data transmission and network throughput.In addition; The Frame transmitting apparatus of present embodiment also adopts the mechanism of detection; At set intervals, from all speed, select a speed to send Frame at random, guaranteed that each speed all can be used; The benchmark throughput that has guaranteed each speed can reflect the actual state of channel in real time, and reasonable target speed lays the foundation in order to select more based on the benchmark throughput of speed.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
1. a Frame sending method is characterized in that, comprising:
According to the benchmark throughput of the every kind of speed that gets access in advance, the speed of selection reference throughput maximum is as targeted rate from all speed; The benchmark throughput of said speed is after the said speed of use has been sent a Frame; Upgrade and obtain sending the benchmark throughput of said speed before the Frame according to the transmission completion status information of the Frame that is sent, said transmission completion status information comprises sub-message number that Frame comprised of being sent and the sub-message number of sending failure;
Use said targeted rate to send current data frame.
2. Frame sending method according to claim 1 is characterized in that, the said targeted rate of said use comprises after sending current data frame:
According to the transmission completion status information of current data frame, the benchmark throughput of said targeted rate is upgraded.
3. Frame sending method according to claim 2 is characterized in that, said transmission completion status information according to current data frame is upgraded the benchmark throughput of said targeted rate and to be comprised:
According to the transmission completion status information of current data frame, calculate the real-time throughput of said targeted rate;
According to the real-time throughput of said targeted rate, upgrade the benchmark throughput of said targeted rate.
4. Frame sending method according to claim 3 is characterized in that, said real-time throughput according to said targeted rate, and the benchmark throughput of upgrading said targeted rate comprises:
According to formula T=T
Old* β+T
Cur* (1-β) upgrades the benchmark throughput of said targeted rate;
Wherein, T is the benchmark throughput after the renewal of said targeted rate;
T
OldBe the benchmark throughput before the renewal of said targeted rate;
T
CurReal-time throughput for said targeted rate;
β is a weight factor, and 0≤β≤1.
5. according to claim 1 or 2 or 3 or 4 described Frame sending methods, it is characterized in that according to the benchmark throughput of the every kind of speed that gets access in advance, the maximum speed of selection reference throughput comprises as before the targeted rate from all speed:
Judge whether preset detect cycle arrives;
When judged result for not the time, carry out benchmark throughput according to the every kind of speed that gets access in advance, the maximum speed of selection reference throughput is as the operation of targeted rate from all speed;
When judged result when being, from all speed, select a speed as said targeted rate at random, and use said targeted rate to send current data frame.
6. a Frame transmitting apparatus is characterized in that, comprising:
Select module, be used for the benchmark throughput according to the every kind of speed that gets access in advance, the speed of selection reference throughput maximum is as targeted rate from all speed; The throughput of said speed is after the said speed of use has been sent a Frame; Upgrade and obtain sending the benchmark throughput of said speed before the Frame according to the transmission completion status information of the Frame that is sent, said transmission completion status information comprises sub-message number that Frame comprised of being sent and the sub-message number of sending failure;
Sending module is used to use said targeted rate to send current data frame.
7. Frame transmitting apparatus according to claim 6 is characterized in that, also comprises:
Update module is used for the transmission completion status information according to current data frame, and the benchmark throughput of said targeted rate is upgraded.
8. Frame transmitting apparatus according to claim 7 is characterized in that, said update module comprises:
Computing unit is used for the transmission completion status information according to current data frame, calculates the real-time throughput of said targeted rate;
Updating block is used for the real-time throughput according to said targeted rate, upgrades the benchmark throughput of said targeted rate.
9. Frame transmitting apparatus according to claim 8 is characterized in that said updating block specifically is used for according to formula T-T
Old* β+T
Cur* (1-β) upgrades the benchmark throughput of said targeted rate;
Wherein, T is the benchmark throughput after the renewal of said targeted rate;
T
OldBe the benchmark throughput before the renewal of said targeted rate;
T
CurReal-time throughput for said targeted rate;
β is a weight factor, and 0≤β≤1.
10. according to claim 6 or 7 or 8 or 9 said Frame transmitting apparatus, it is characterized in that, also comprise:
Judge module is used to judge whether preset detect cycle arrives;
Trigger module is used in the judged result of said judge module triggering said selection module and carrying out the benchmark throughput according to the every kind of speed that gets access in advance for not the time, and the maximum speed of selection reference throughput is as the operation of targeted rate from all speed;
Select sending module, be used in the judged result of said judge module from all speed, selecting a speed as said targeted rate at random, and using said targeted rate transmission current data frame when being.
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| CN103532664A (en) * | 2013-09-27 | 2014-01-22 | 章程 | Sending rate control method and equipment |
| CN104684028A (en) * | 2013-11-26 | 2015-06-03 | 智捷科技股份有限公司 | Wireless adaptive rate control method |
| CN109348515A (en) * | 2018-11-27 | 2019-02-15 | 锐捷网络股份有限公司 | The adjusting method and device of transmission in wireless network rate |
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| CN103532664A (en) * | 2013-09-27 | 2014-01-22 | 章程 | Sending rate control method and equipment |
| CN103532664B (en) * | 2013-09-27 | 2016-09-07 | 昆山创通微电子有限公司 | A kind of method of controlling transmission rate and equipment |
| CN103532669A (en) * | 2013-10-14 | 2014-01-22 | 福建星网锐捷网络有限公司 | Data transmission rate regulation method, device and wireless access point |
| CN104684028A (en) * | 2013-11-26 | 2015-06-03 | 智捷科技股份有限公司 | Wireless adaptive rate control method |
| CN104684028B (en) * | 2013-11-26 | 2018-08-28 | 智捷科技股份有限公司 | Wireless self-adaptive quadtree method |
| CN109348515A (en) * | 2018-11-27 | 2019-02-15 | 锐捷网络股份有限公司 | The adjusting method and device of transmission in wireless network rate |
| CN109348515B (en) * | 2018-11-27 | 2022-08-16 | 锐捷网络股份有限公司 | Method and device for adjusting transmission rate in wireless network |
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