CN104936215B - A kind of wireless Wi-Fi dynamic rate shaping method and system - Google Patents
A kind of wireless Wi-Fi dynamic rate shaping method and system Download PDFInfo
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- CN104936215B CN104936215B CN201510336979.4A CN201510336979A CN104936215B CN 104936215 B CN104936215 B CN 104936215B CN 201510336979 A CN201510336979 A CN 201510336979A CN 104936215 B CN104936215 B CN 104936215B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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Abstract
The present invention provides a kind of wireless Wi-Fi dynamic rate shaping method and system, the methods are as follows: preset data packet quantity threshold values detects the data packet number that the transmitting terminal of wireless Wi-Fi in current period is sent；If the data packet number sent in current period is less than data packet number threshold values, acquires the signal-to-noise ratio of the receiving end of wireless Wi-Fi and adjust the transmission rate of data packet；If the data packet number sent in current period is more than or equal to data packet number threshold values, acquires the packet loss of the receiving end of wireless Wi-Fi and adjust the transmission rate of data packet.The system are as follows: in wireless Wi-Fi transmitting terminal connecting detection module and adjustment module, connect acquisition module in the wireless receiving end Wi-Fi.System structure is reasonable, and the communication quality of wireless Wi-Fi can be improved in data processing rapid and convenient.
Description
Technical field
The present invention relates to wireless network transmission technology field, in particular to a kind of wireless Wi-Fi dynamic rate shaping method
And system.
Background technique
The advantages such as wireless Wi-Fi is high by its speed, price is low are increasingly widely applied in network.However, nothing
The communication quality of line Wi-Fi is affected by bigger such as extraneous interference signal, the blocking of barrier, client
End is kept in motion.Therefore, the transmission rate of wireless Wi-Fi is adjusted to improve communication quality just and can give full play to
The transmission performance of wireless Wi-Fi.
The occasion of message is only transmitted in POS machine etc., the quantity for the data packet transmitted every time is fewer, although only losing one
A data packet, packet loss can also maintain in very high level, cause message transmission rate low.Therefore simple packet loss number
According to that obviously cannot reflect actual signal intelligence, if going adjustment transmission rate according to packet loss at this time, it is likely that can be because of speed
Rate adjustment fault causes Communication.
The patent of invention of Publication No. CN104104481A discloses the file transmitting method and dress of a kind of WLAN
It sets, transmission rate, specific steps can be determined according to the signal strength of receiving end and/or packet loss by disclosing are as follows: S202: week
Obtain to phase property the signal strength of the receiving end；S204: it is determined according to the signal strength of the receiving end periodically acquired
The adjustable range of the transmission rate；S206: periodically the packet loss for having sent message is counted；S208: according to system
It counts obtained packet loss and determines the transmission rate in the adjusting range.That is, according to the signal strength of receiving end and losing
Packet rate codetermines initial transmission rate, by periodically detecting the signal strength of receiving end, determines the tune of transmission rate
Adjusting range, while periodically the packet loss information for having sent frame is counted, and then finely tune transmission rate, and finally exist
Transmission rate and packet loss seek therebetween an optimal equilibrium state.Although according to the signal strength of receiving end and losing
Packet rate adjusts transmission rate jointly, but all first passes through the signal strength adjustment hair of receiving end for the transmission of each data packet
Transmission rate, then finely tunes transmission rate according to packet loss, and the signal strength of receiving end cannot reflect the environmental factors such as interference signal
Influence, data handling procedure is complicated and unreasonable, in addition, the occasion few for data packet number, very according to packet loss fine tuning
It may result in communication quality decline.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of wireless Wi-Fi dynamic rate shaping of good communication quality
Method and system.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of wireless Wi-Fi dynamic rate shaping method, the method are as follows:
Preset data packet quantity threshold values detects the data packet number that the transmitting terminal of wireless Wi-Fi in current period is sent；
If the data packet number sent in current period is less than data packet number threshold values, the reception of wireless Wi-Fi is acquired
The signal-to-noise ratio at end and the transmission rate for adjusting data packet；
If the data packet number sent in current period is more than or equal to data packet number threshold values, acquire wireless Wi-Fi's
The packet loss of receiving end and the transmission rate for adjusting data packet.
The beneficial effects of the present invention are: when the data packet that the transmitting terminal of wireless Wi-Fi is sent is less, according to wireless
The transmission rate of the signal-to-noise ratio adjustment data packet of the receiving end of Wi-Fi, when the data packet that the transmitting terminal of wireless Wi-Fi is sent is more
When, the transmission rate of data packet is adjusted according to the packet loss of the receiving end of wireless Wi-Fi, signal-to-noise ratio can reflect the environment of receiving end
Disturbed condition adjusts transmission rate using signal-to-noise ratio when data packet number is less, can avoid packet loss it is too big and caused by pass
Defeated rate mistuning is whole, improves the communication quality of wireless Wi-Fi.
A kind of wireless Wi-Fi dynamic rate shaping system, comprising:
Transmitting terminal, for sending data packet；
Receiving end is wrapped for receiving data；
Detection module, the data packet number that the transmitting terminal for detecting wireless Wi-Fi in current period is sent；
Acquisition module, for acquiring the signal-to-noise ratio and packet loss of the receiving end of wireless Wi-Fi；
Module is adjusted, for adjusting the transmission rate of data packet.
The beneficial effects of the present invention are: data packet is sent by transmitting terminal, inspection is passed through by receiving end received data packet
It surveys module and detects the data packet number to be sent, the signal-to-noise ratio and packet loss of receiving end are acquired by acquisition module, by adjusting
Module adjusts transmission rate, and system structure is rationally, it can be achieved that the wirelessly detection and control during Wi-Fi data transmission and reception
System.
Detailed description of the invention
Fig. 1 is the flow chart of wireless Wi-Fi dynamic rate shaping method of the invention；
Fig. 2 is the structural schematic diagram of wireless Wi-Fi dynamic rate shaping system of the invention.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The most critical design of the present invention is: when the negligible amounts for the data packet that the transmitting terminal of wireless Wi-Fi is sent according to
Signal-to-noise ratio adjusts transmission rate, transmission rate is adjusted according to packet loss when data packet number is larger, in the transmitting terminal of wireless Wi-Fi
Detection data packet quantity acquires signal-to-noise ratio or packet loss in the receiving end of wireless Wi-Fi, it is contemplated that the receiving end of wireless Wi-Fi
Environment interference situation adjust transmission rate, data processing is reasonable, system structure is reasonable.
Explanation of technical terms of the present invention is shown in Table 1:
Table 1
| Technical term | It explains |
| Packet loss | Lost data packet number accounts for the ratio of transmitted data bulk in finger test. |
| Signal-to-noise ratio | Refer to the ratio of signal and noise in an electronic equipment or electronic system. |
A specific embodiment of the invention are as follows:
Referring to Figure 1, a kind of wireless Wi-Fi dynamic rate shaping method, the method are as follows:
Preset data packet quantity threshold values detects the data packet number that the transmitting terminal of wireless Wi-Fi in current period is sent；
If the data packet number sent in current period is less than data packet number threshold values, the reception of wireless Wi-Fi is acquired
The signal-to-noise ratio at end and the transmission rate for adjusting data packet；
If the data packet number sent in current period is more than or equal to data packet number threshold values, acquire wireless Wi-Fi's
The packet loss of receiving end and the transmission rate for adjusting data packet.
As can be seen from the above description, the beneficial effects of the present invention are: when wireless Wi-Fi transmitting terminal send data packet compared with
When few, the transmission rate of data packet is adjusted according to the signal-to-noise ratio of the receiving end of wireless Wi-Fi, when the transmitting terminal of wireless Wi-Fi is sent out
When the data packet sent is more, the transmission rate of data packet is adjusted according to the packet loss of the receiving end of wireless Wi-Fi, signal-to-noise ratio can be anti-
The environment interference situation for reflecting receiving end adjusts transmission rate using signal-to-noise ratio when data packet number is less, can avoid packet loss
It is too big and caused by transmission rate mistuning it is whole, improve the communication quality of wireless Wi-Fi.
Further, it acquires the signal-to-noise ratio of the receiving end of wireless Wi-Fi and adjusts the transmission rate of data packet, specifically:
Default maximum signal to noise ratio threshold values, acquires the signal-to-noise ratio of the receiving end of wireless Wi-Fi；
The biography of data packet is adjusted according to the signal-to-noise ratio of the receiving end of collected wireless Wi-Fi and maximum signal to noise ratio threshold values
Defeated rate.
Seen from the above description, adjusted according to the signal-to-noise ratio of the receiving end of wireless Wi-Fi the transmission rate of data packet with
The maximum signal to noise ratio threshold values of receiving end guarantees the reasonability and validity of transmission rate adjustment as reference data.
Further, maximum signal to noise ratio threshold values is signal-to-noise ratio of the receiving end of wireless Wi-Fi under noiseless environment.
Seen from the above description, the receiving end that maximum signal to noise ratio threshold values is wireless Wi-Fi is communicated without the rationality of environmental disturbances
State, in this, as reference, it is ensured that the reasonability and validity of transmission rate adjustment.
Further, it acquires the packet loss of the receiving end of wireless Wi-Fi and adjusts the transmission rate of data packet, specifically:
Default minimum packet loss threshold values, maximum packet loss threshold values and current transmission rate, acquire the receiving end of wireless Wi-Fi
Packet loss；
In some cycles, if the packet loss of the receiving end of wireless Wi-Fi is less than minimum packet loss threshold values, increase current
Transmission rate；If the packet loss of the receiving end of wireless Wi-Fi is greater than maximum packet loss threshold values, reduce current transmission rate.
Seen from the above description, the boundary line for using minimum packet loss threshold values to improve as current transmission rate, with maximum packet loss
The boundary line that threshold values is reduced as current transmission rate, if packet loss be located at minimum packet loss threshold values and maximum packet loss threshold values it
Between, then current transmission rate is constant, guarantees the reasonability and validity of transmission rate adjustment.
Further, the minimum packet loss threshold values PerminNumberical range are as follows: 2%~8%, it is described maximum packet loss
Threshold values PermaxNumberical range are as follows: 15%~30%.
Seen from the above description, the data packet number sent every time due to the transaction message of POS machine is smaller, if minimum is lost
The setting of packet rate threshold values is too low, then transmission rate adjustment can be excessively frequent, if maximum packet loss threshold values setting is too high, will affect
The validity of transaction message, influences user experience.
Please refer to Fig. 1, the embodiment of the present invention one are as follows:
A kind of wireless Wi-Fi dynamic rate shaping method, the method are as follows:
Default one includes N number of transmission rate R successively arranged from small to largeidxSpeedometer Drive, wherein i=1,2 ..., N,
The Speedometer Drive is { 1,2,5.5,6,6.5,13,19.5,26,39,52,58.5,65 }, and unit Mbps, then N is 12；
Preset data packet quantity threshold values is 20, detects the number-of-packet that the transmitting terminal of wireless Wi-Fi in current period is sent
Amount；
If the data packet number sent in current period is less than data packet number threshold values, the reception of wireless Wi-Fi is acquired
The signal-to-noise ratio at end and the transmission rate for adjusting data packet, specifically:
Default maximum signal to noise ratio threshold values is SNRmax, maximum signal to noise ratio threshold values is SNRmaxTake transmission frequency be 2.4GHz when without
Under interference environment, signal-to-noise ratio when receiving end is with wireless aps distance 1m, signal power is -25dB at this time, noise power is -
100dB, then maximum signal to noise ratio threshold values is SNRmaxSubtracting noise power equal to signal power is 75dB；
The signal-to-noise ratio for acquiring the receiving end of wireless Wi-Fi is SNR, adjusts the transmission rate of data packet, specifically:
It is SNR and maximum signal to noise ratio threshold values SNR according to the signal-to-noise ratio of the receiving end of collected wireless Wi-FimaxUnder
It states formula and Integer n is calculated:
N=N × (SNR ÷ SNRmax)；
If wherein n < 1 takes n=1；If n > N takes n=N；
Select transmission rate R of n-th of transmission rate as data packet in Speedometer Drivendx；
If the data packet number sent in current period is greater than data packet number threshold values, the reception of wireless Wi-Fi is acquired
The packet loss at end and the transmission rate for adjusting data packet, specifically:
Default minimum packet loss threshold values PerminFor 2%, maximum packet loss threshold values PermaxFor 15% and current transmission rate
RndxFor 26Mbps；
The packet loss Per for acquiring the receiving end of wireless Wi-Fi, adjusts the transmission rate of data packet, specifically:
In some cycles, if Per < Permin, then transmission rate R is adjustedndx, take n=n+1, i.e. RndxFor 39Mbps；If
Per>Permax, then transmission rate R is adjustedndx, take n=n-1, i.e. RndxFor 19.5Mbps；
R adjustedndxTransmission rate as data packet.
Refer to Fig. 2, a kind of wireless Wi-Fi dynamic rate shaping system, comprising:
Transmitting terminal, for sending data packet；
Receiving end is wrapped for receiving data；
Detection module, the data packet number that the transmitting terminal for detecting wireless Wi-Fi in current period is sent；
Acquisition module, for acquiring the signal-to-noise ratio and packet loss of the receiving end of wireless Wi-Fi；
Module is adjusted, for adjusting the transmission rate of data packet.
As can be seen from the above description, the beneficial effects of the present invention are: data packet is sent by transmitting terminal, is terminated by receiving
Receive data packet, by detection module detect the data packet number to be sent, by acquisition module acquire receiving end signal-to-noise ratio and
Packet loss adjusts transmission rate by adjusting module, and system structure is rationally, it can be achieved that wireless Wi-Fi data transmission and reception
Detecting and controlling in journey.
Further, the detection module and adjustment module are connect with transmitting terminal, and the acquisition module is connect with receiving end.
Seen from the above description, detection module and adjustment module are mainly used in transmitting terminal, and acquisition module is mainly used in
Receiving end, system structure is reasonable, and processing data are convenient and quick.
Referring to figure 2., the embodiment of the present invention two are as follows:
A kind of wireless Wi-Fi dynamic rate shaping system, comprising:
Transmitting terminal, for sending data packet；
Receiving end is wrapped for receiving data；
Detection module, the data packet number that the transmitting terminal for detecting wireless Wi-Fi in current period is sent；
Acquisition module, for acquiring the signal-to-noise ratio and packet loss of the receiving end of wireless Wi-Fi；
Module is adjusted, for adjusting the transmission rate of data packet；
Wherein, the detection module and adjustment module are connect with transmitting terminal, and the acquisition module is connect with receiving end.
In conclusion wireless Wi-Fi dynamic rate shaping method and system provided by the invention, when the hair of wireless Wi-Fi
When the data packet that sending end is sent is less, the transmission rate of data packet is adjusted according to the signal-to-noise ratio of the receiving end of wireless Wi-Fi, works as nothing
When the data packet that the transmitting terminal of line Wi-Fi is sent is more, the biography of data packet is adjusted according to the packet loss of the receiving end of wireless Wi-Fi
Defeated rate, packet loss can reflect the actual conditions for receiving end data transmission, when data packet number is less, even lose a number
Word, packet loss all can be very big, and signal-to-noise ratio can reflect the environment interference situation of receiving end, the side combined using signal-to-noise ratio and packet loss
Formula adjusts transmission rate, in the data packet number that the transmitting terminal detection of wireless Wi-Fi is sent, and transmission rate is adjusted, wireless
The receiving end acquisition signal-to-noise ratio and packet loss of Wi-Fi, system structure is reasonable, and wireless Wi-Fi can be improved in data processing rapid and convenient
Communication quality.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (6)
1. a kind of wireless Wi-Fi dynamic rate shaping method, which is characterized in that the method are as follows:
Preset data packet quantity threshold values detects the data packet number that the transmitting terminal of wireless Wi-Fi in current period is sent；
If the data packet number sent in current period is less than data packet number threshold values, the receiving end of wireless Wi-Fi is acquired
Signal-to-noise ratio and the transmission rate for adjusting data packet；
If the data packet number sent in current period is more than or equal to data packet number threshold values, the reception of wireless Wi-Fi is acquired
The packet loss at end and the transmission rate for adjusting data packet；
It acquires the packet loss of the receiving end of wireless Wi-Fi and adjusts the transmission rate of data packet, specifically:
Default minimum packet loss threshold values, maximum packet loss threshold values and current transmission rate, acquire losing for the receiving end of wireless Wi-Fi
Packet rate；
In some cycles, if the packet loss of the receiving end of wireless Wi-Fi is less than minimum packet loss threshold values, increase current transmission
Rate；If the packet loss of the receiving end of wireless Wi-Fi is greater than maximum packet loss threshold values, reduce current transmission rate.
2. wireless Wi-Fi dynamic rate shaping method according to claim 1, which is characterized in that acquire wireless Wi-Fi's
The signal-to-noise ratio of receiving end and the transmission rate for adjusting data packet, specifically:
Default maximum signal to noise ratio threshold values, acquires the signal-to-noise ratio of the receiving end of wireless Wi-Fi；
The transmission speed of data packet is adjusted according to the signal-to-noise ratio of the receiving end of collected wireless Wi-Fi and maximum signal to noise ratio threshold values
Rate.
3. wireless Wi-Fi dynamic rate shaping method according to claim 2, which is characterized in that maximum signal to noise ratio threshold values
For signal-to-noise ratio of the receiving end under noiseless environment of wireless Wi-Fi.
4. wireless Wi-Fi dynamic rate shaping method according to claim 1, which is characterized in that the minimum packet loss
The numberical range of threshold values Permin are as follows: 2%~8%, the numberical range of the maximum packet loss threshold values Permax are as follows: 15%~
30%.
5. a kind of wireless Wi-Fi dynamic rate shaping system characterized by comprising
Transmitting terminal, for sending data packet；
Receiving end is wrapped for receiving data；
Detection module, the data packet number that the transmitting terminal for detecting wireless Wi-Fi in current period is sent；
Acquisition module, for acquiring the signal-to-noise ratio and packet loss of the receiving end of wireless Wi-Fi；
Module is adjusted, for adjusting the transmission rate of data packet；
Preset data packet quantity threshold values detects the data packet number that the transmitting terminal of wireless Wi-Fi in current period is sent；
If the data packet number sent in current period is less than data packet number threshold values, the receiving end of wireless Wi-Fi is acquired
Signal-to-noise ratio and the transmission rate for adjusting data packet；
If the data packet number sent in current period is more than or equal to data packet number threshold values, the reception of wireless Wi-Fi is acquired
The packet loss at end and the transmission rate for adjusting data packet；
Default minimum packet loss threshold values, maximum packet loss threshold values and current transmission rate, acquire losing for the receiving end of wireless Wi-Fi
Packet rate；
In some cycles, if the packet loss of the receiving end of wireless Wi-Fi is less than minimum packet loss threshold values, increase current transmission
Rate；If the packet loss of the receiving end of wireless Wi-Fi is greater than maximum packet loss threshold values, reduce current transmission rate.
6. wireless Wi-Fi dynamic rate shaping system according to claim 5, which is characterized in that the detection module and
Adjustment module is connect with transmitting terminal, and the acquisition module is connect with receiving end.
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| CN107426781B (en) * | 2017-08-16 | 2021-04-13 | 高新兴物联科技有限公司 | Dual-frequency WiFi automatic switching method and device and computer readable storage medium |
| CN108307447B (en) * | 2018-01-31 | 2021-01-01 | Oppo广东移动通信有限公司 | Wireless network transmission control method, device, storage medium and terminal equipment |
| CN112789883B (en) * | 2018-12-22 | 2022-08-09 | 华为技术有限公司 | Rate control method, device and computer storage medium |
| CN112752345B (en) * | 2019-10-31 | 2023-02-07 | 华为技术有限公司 | WLAN system, communication method and device |
| CN111192443B (en) * | 2020-01-20 | 2020-10-20 | 深圳市觅拓物联信息技术有限公司 | Energy-saving warning method and warning system based on Bluetooth beacon |
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| CN101150501A (en) * | 2007-10-31 | 2008-03-26 | 广州市新邮通信设备有限公司 | Self-adapted adjustment method for network speed in radio bandwidth access network |
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| CN1703859A (en) * | 2002-02-28 | 2005-11-30 | 英特尔公司 | Data transmission rate control using an estimation of the SNR of the communication channel |
| CN102111807A (en) * | 2009-12-23 | 2011-06-29 | 北京中电华大电子设计有限责任公司 | Automatic regulation method of sending rate for wire local area network (WLAN) system |
| CN102204182A (en) * | 2010-12-29 | 2011-09-28 | 华为技术有限公司 | Method and apparatus for controlling congestion of data transmission |
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