CN106162662A - The method and apparatus of interference in monitoring WLAN - Google Patents
The method and apparatus of interference in monitoring WLAN Download PDFInfo
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- CN106162662A CN106162662A CN201610795670.6A CN201610795670A CN106162662A CN 106162662 A CN106162662 A CN 106162662A CN 201610795670 A CN201610795670 A CN 201610795670A CN 106162662 A CN106162662 A CN 106162662A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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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 relates to communication technical field, disclose the method and apparatus of interference in monitoring WLAN, the method includes: monitoring receives packet in WLAN, parses about WLAN belonging to data transmission and the information of the shared duration of data transmission from packet；The information about WLAN belonging to data transmission and the shared duration of data transmission according to parsing calculates the channel duty cycle of the first WLAN and the channel duty cycle of other WLANs one or more in addition to the first WLAN, using the one or more other WLAN as interference network；Channel duty cycle and the channel duty cycle of described interference network according to described first WLAN determine the degree that the first WLAN is disturbed.The present invention during interference, considers data and transmits the dutycycle of actual busy channel, improve the accuracy of interference assessment in WLAN in monitoring WLAN.
Description
Technical field
The present invention relates to communication technical field, in particular it relates to a kind of method monitoring interference in WLAN and dress
Put.
Background technology
Switching equipment or routing device in WLAN (such as, Wi-Fi network) can be as access point (AP)
In network, the equipment as website (STA) provides wireless network to access.At wireless network related protocol, such as IEEE 802.11
In agreement, it is stipulated that WLAN works in two unauthorized frequency ranges at 2.4GHz and 5.8GHz.So, meet radio to send out
The equipment penetrating specification all can use these frequency ranges, thus can cause interfering of communication between devices.Thus need wireless office
Interference in the net of territory is monitored, in order to can carry out respective handling according to disturbed condition.
To WLAN disturbing the method being monitored include monitoring signal intensity in channel in prior art, according to
The signal intensity monitored is to judge the disturbed condition in WLAN.The defect of the method is only to consider signal intensity
Carry out interference assessment cause interference with assessment not accurate enough.
Summary of the invention
It is an object of the invention to provide a kind of method and apparatus monitored and disturb in WLAN, to solve above-mentioned technology
Problem or solve above-mentioned technical problem at least in part.
To achieve these goals, the present invention provides a kind of and monitors the method for interference in WLAN, and the method includes:
Monitoring receives packet in WLAN, parses and pass about WLAN and data belonging to data transmission from packet
The information of defeated shared duration；Shared duration is transmitted about WLAN and data belonging to data transmission according to parse
Information calculate the channel duty cycle of the first WLAN and other nothings one or more in addition to the first WLAN
The channel duty cycle of line LAN, using the one or more other WLAN as interference network；According to described first
The channel duty cycle of WLAN and the channel duty cycle of described interference network determine the journey that the first WLAN is disturbed
Degree.
Preferably, the described channel duty cycle according to described first WLAN and the channel duty of described interference network
Ratio determines that the degree that the first WLAN is disturbed includes: calculate the channel duty cycle of described first WLAN and described
Interference net in one or more channel duty cycle add and；Add described in judgement and whether exceed predetermined threshold value；Add when described and
When exceeding predetermined threshold value, utilize with the channel duty cycle of described first WLAN and described interference network in one or more
The function that is associated of channel duty cycle calculate the degree that described first WLAN is disturbed；Add when described and be not above
During predetermined threshold value, determine that the degree that described first WLAN is disturbed is predetermined minimum；Wherein, predetermined threshold value less than or
Equal to 1；Predetermined minimum is less than or equal to described functional minimum value.
Preferably, the functional value of described function reduces with the increase of the channel duty cycle of described first WLAN,
Increase with the increase of channel duty cycle of described interference network.
Preferably, the described channel duty cycle according to described first WLAN and the channel duty of described interference network
Ratio determines that the degree that the first WLAN is disturbed includes: in multiple interference networks each, respectively according to described the
Channel duty cycle in the channel duty cycle of one WLAN and described interference network calculates described first WLAN phase
Degree is disturbed for described interference network.
Preferably, described method also included before determining the degree that the first WLAN is disturbed: for non-for
In carrying WLAN, the signal of packet is monitored；Intensity according to the described signal monitored determines non-nothing in network
The channel duty cycle of line LAN, using described network of non-radio local as interference network.
Preferably, described method also includes: the degree being disturbed according to the first WLAN in various degree by dry
The situation of disturbing carries out difference and presents.
Preferably, described method also includes: the degree that the first WLAN is disturbed uploads to Cloud Server or institute
State other equipment in the first WLAN.
Present invention also offers a kind of device monitored and disturb in WLAN, this device includes: signal monitoring resolves
Module, is used for monitoring packet in reception WLAN, parses about wireless local belonging to data transmission from packet
Net and the information of the shared duration of data transmission；Channel duty cycle computing module, for transmitting about data according to parse
Belonging to the information of WLAN and the shared duration of data transmission calculate the channel duty cycle of the first WLAN and except the
The channel duty cycle of other WLANs one or more beyond one WLAN, by the one or more other nothing
Line LAN is as interference network；Interference determines module, for the channel duty cycle according to described first WLAN and institute
The channel duty cycle stating interference network determines the degree that the first WLAN is disturbed.
Preferably, described interference determines that module is for calculating the channel duty cycle of described first WLAN and described dry
Disturb one or more channel duty cycle in net add and；Add described in judgement and whether exceed predetermined threshold value；Add when described and surpass
When crossing predetermined threshold value, utilize with the channel duty cycle of described first WLAN and described interference network in one or more
The function that channel duty cycle is associated calculates the degree that described first WLAN is disturbed；Add when described and be not above pre-
If during threshold value, determine that the degree that described first WLAN is disturbed is predetermined minimum；Wherein, predetermined threshold value less than or etc.
In 1；Predetermined minimum is less than or equal to described functional minimum value.
Preferably, the functional value of described function reduces with the increase of the channel duty cycle of described first WLAN,
Increase with the increase of channel duty cycle of described interference network.
Preferably, described interference determine module for in multiple interference networks each, respectively according to described first
It is relative that the channel duty cycle of WLAN calculates described first WLAN with the channel duty cycle in described interference network
It is disturbed degree in described interference network.
Preferably, described signal monitoring parsing module is additionally operable to for non-for carrying the letter of packet in WLAN
Number it is monitored；The intensity that described channel duty cycle computing module is additionally operable to according to the described signal monitored determines in network non-
The channel duty cycle of WLAN, using described network of non-radio local as interference network.
Preferably, described device also includes: interference presents module, for the degree being disturbed according to the first WLAN
The situation that is disturbed in various degree is carried out difference present.
Preferably, described device also includes: transmission module in interference, for the degree being disturbed by the first WLAN
Pass to other equipment in Cloud Server or described first WLAN.
By technique scheme, monitoring receives packet in WLAN, parses about data from packet
WLAN belonging to transmission and the information of the shared duration of data transmission；Affiliated wireless about data transmission according to parse
The information of LAN and the shared duration of data transmission calculates the channel duty cycle of the first WLAN and except the first wireless office
The channel duty cycle of other WLANs one or more beyond the net of territory；Channel according to described first WLAN accounts for
The channel duty cycle of empty ratio and the one or more other WLAN determines the degree that the first WLAN is disturbed；
So in monitoring WLAN during interference, consider data and transmit the dutycycle of actual busy channel, improve wireless local
The accuracy of interference assessment in net.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the method for interference in the monitoring WLAN according to embodiment of the present invention；
Fig. 2 is the flow process of the process of the degree that determination the first WLAN according to embodiment of the present invention is disturbed
Figure；
Fig. 3 is the flow chart of the process being monitored network of non-radio local according to embodiment of the present invention；
Fig. 4 is the schematic diagram of the application scenarios of embodiments of the present invention；
Fig. 5 is the flow chart of the method for the embodiment in the application scenarios of the present invention；
Fig. 6 is the structure chart of the device of interference in the monitoring WLAN according to embodiment of the present invention；
Fig. 7 is the structure chart of the device of interference in the monitoring WLAN according to embodiment of the present invention；And
Fig. 8 is the structure chart of the device of interference in the monitoring WLAN according to embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
Fig. 1 is the flow chart of the method for interference in the monitoring WLAN according to embodiment of the present invention.The method can
For the various equipment by wlan access network, such as mobile phone, home appliance etc., it is also possible to be used for exclusively carrying out nothing
The equipment of line LAN monitoring.As it is shown in figure 1, the method can comprise the steps.
In step s 110, monitoring receives packet in WLAN, parses and transmit about data from packet
Affiliated WLAN and the information of the shared duration of data transmission.
In a wireless local area network, equipment uses CSMA/CD (carrier sense/conflict avoidance) mechanism to carry out data transmission, and
And, also use Virtual Carrier Sense mechanism and RTS/CTS (request transmission/clear to send) mechanism.It is, in WLAN
Equipment can carry out monitoring the packet of transmission in acquisition channel to channel.Equipment is at RTS message and the duration of CTS message
(duration) field instruction next these data transmit the duration of data to be taken, in order in network, other equipment arrange NAV (net
Network allocation vector) ensure not send packet in channel occupied period, to avoid causing conflict.Additionally, equipment is passing through
After AP accesses WLAN, the packet of transmission includes BSSID (basic service set identification) field, AP in WLAN
Also including BSSID field in the packet sent, BSSID is corresponding with WLAN, and each WLAN has respective
BSSID.Equipment, by monitoring channel, receives packet in each WLAN, BSSID field from packet from channel
Can parse WLAN belonging to data transmission, from packet, duration field can parse shared by data transmission
Use duration.
In the step s 120, according to parse about when belonging to data transmission, WLAN and data transmission are shared
Long information calculate the first WLAN channel duty cycle and in addition to the first WLAN one or more other
The channel duty cycle of WLAN, using other WLANs one or more as interference network.
Channel duty cycle refers to the ratio between total duration and the cycle duration of monitoring of the shared channel of data transmission.
The present invention disturb network refer to the first WLAN is formed the network of interference, it may include except the first wireless local
Other WLANs outside net, may also include the network of network of non-radio local.
For example, equipment can be using the WLAN that self is currently accessed as the first WLAN, it is also possible to
Using default WLAN as the first WLAN.Equipment is by the first WLAN BSSID and correspondence of storage
Channel occupancy duration, total duration of the first WLAN busy channel in measurement period duration.When equipment currently connects with self
When the WLAN entered is as the first WLAN, also need when calculating total duration of the first WLAN busy channel
The duration that self sends data busy channel is joined in total duration, total duration is shown that compared with cycle duration first is wireless
The channel duty cycle of LAN.Similarly, each other nothings of non-first WLAN in equipment measurement period duration respectively
The duration of the shared channel of data transmission in line LAN, for other WLANs of each non-first WLAN,
By corresponding busy channel duration compared with cycle duration, obtain the channel duty cycle of this WLAN.Non-first wireless office
Other WLANs of territory net can be one or more.
In step s 130, determine according to the channel duty cycle of the first WLAN and the channel duty cycle of interference network
The degree that first WLAN is disturbed.
In one embodiment, as in figure 2 it is shown, the described channel duty cycle according to the first WLAN and interference network
Channel duty cycle determines that the degree that the first WLAN is disturbed can comprise the steps.
In step S202, calculate the channel duty cycle of the first WLAN and disturb one or more letter in network
Road dutycycle add and.
In step S204, it is judged that the adding and whether exceed predetermined threshold value of channel duty cycle.
In step S206, when adding and exceed predetermined threshold value, utilize with the channel duty cycle of the first WLAN and
The function that in interference network, one or more channel duty cycle is associated calculates the degree that the first WLAN is disturbed.
In step S208, when adding and be not above predetermined threshold value, determine the degree that the first WLAN is disturbed
For predetermined minimum.
Wherein, predetermined threshold value is less than or equal to 1；Predetermined minimum is less than or equal to functional minimum value.
The functional value of function reduces with the increase of the channel duty cycle of the first WLAN, with the channel of interference network
The increase of dutycycle and increase.
For example, the channel duty cycle of the first WLAN is K0, have N number of in addition to the first WLAN
Other WLANs, they are interference network, and its dutycycle is respectively K1……KN, calculate channel duty cycle add and, example
As:
When in region, the transmission demand of each WLAN can be met, regardless of the neighbour of the first WLAN
Between nearly equipment in wireless local land area, the signal of communication is strong and weak, does not all include work substance interference.When each WLAN in region
Transmission demand when can not be met, just think and there occurs substantive interference, therefore predetermined threshold value is set to " close " 1,
Wherein " close " is that time overhead that CSMA/CA mechanism bring is contemplated.In this citing, predetermined threshold value is 90%, presets minimum
Value is 0.
When S is less than 90%, degree I that the first WLAN is disturbed is 0.When S is more than or equal to 90%, first
Degree I that WLAN is disturbed is calculated by such as minor function.
The function calculating degree I that the first WLAN is disturbed is not limited to function in the example above, the most replaceable
Ground, can be to K1……KNIt is weighted summation, weight, example are set according to the signal intensity of the corresponding WLAN monitored
As the biggest in signal intensity more power.It is K by the channel duty cycle of weighted sum gained and value and the first WLAN0It is divided by
Draw degree I that the first WLAN is disturbed.Other various functions can also be used to draw, and the first WLAN is by dry
Degree I disturbed, is not particularly limited at this.
In one embodiment, the described channel duty cycle according to the first WLAN and the channel duty cycle of interference network
Determine that the degree that the first WLAN is disturbed comprises the steps that for each in multiple interference networks, respectively according to the first nothing
Channel duty cycle in the channel duty cycle of line LAN and this interference network calculates the first WLAN relative to this interference
Network be disturbed degree.
Such as, when the adding of channel duty cycle of the channel duty cycle of the first WLAN and other each WLANs
With during more than predetermined threshold value (such as 90%), respectively by the channel duty cycle and first in other WLANs multiple each
The channel duty cycle of WLAN is divided by, and show that the first WLAN is relative to each in other WLANs multiple
Be disturbed degree.So, it is possible more accurately to know each other WLANs interference to the first WLAN
Degree.
In one embodiment, in the present invention, the interference of WLAN can also be supervised by method by network of non-radio local
Survey, such as, as it is shown on figure 3, the method is before determining the degree that the first WLAN is disturbed, may also include the steps of.
In step s 302, it is monitored for carrying the signal of packet in WLAN for non-.
In step s 304, the channel duty of network of non-radio local in network is determined according to the intensity of the signal monitored
Ratio, using described network of non-radio local as interference network.
For example, network of non-radio local is existed as interference network, the super threshold signal of monitoring network of non-radio local
Accumulative duration in cycle, draws the channel duty cycle of network of non-radio local by accumulative duration divided by cycle duration.Can basis
The channel duty cycle of this network of non-radio local individually calculates the network of non-radio local disturbed condition to the first WLAN, such as
Divided by the channel duty cycle of the first WLAN, the channel duty cycle of network of non-radio local is shown that the first WLAN is subject to
The annoyance level of network of non-radio local.
Can also, assess according to the channel duty cycle of network of non-radio local and the channel duty cycle of other WLANs
First WLAN is by extraneous overall interference situation.Such as, the channel duty cycle of the first WLAN is K0, there is N
Individual other WLANs in addition to the first WLAN, they are respectively for interference network, its channel duty cycle
K1……KN, the channel duty cycle of network of non-radio local is KN+1, calculate channel duty cycle add and, such as:
When S is less than 90%, degree I that the first WLAN is disturbed is 0.When S is more than or equal to 90%, first
Degree I that WLAN is disturbed is calculated by such as minor function.
So, using the wireless network of the WLAN in addition to the first WLAN and network of non-radio local all as
Interference network, it follows that the interference that the first WLAN receives in space entirety.
Pass through technique scheme, it is possible in monitoring WLAN during interference, data are transmitted actual busy channel
Ratio consider including, improve the accuracy of interference assessment in WLAN.
In one embodiment, in the present invention, method may also include the degree being disturbed according to the first WLAN to difference
The situation that is disturbed of degree carries out difference and presents.
For example, for the first WLAN be disturbed situation carry out in the APP of mobile phone or household electrical appliance in
Existing.Wherein, the degree being disturbed the first WLAN carries out partition of the level by numerical value, uses corresponding color according to rank
Present numerical value and the description of correspondence.
Such as, what rule shown according to the form below presented the first WLAN in APP is disturbed degree I.
| Interference strength I | Display numerical value | Display word | Show Color |
| 0 | 0 | Noiseless | Green |
| (0,1] | 1 | Weak jamming | Yellow |
| (1,9) | I rounds downwards | Middle interference | Orange |
| ≥9 | 9 | Strong jamming | Red |
It is as shown in the table, when degree I that is disturbed of the first WLAN is 0, and the annoyance level numerical value presented in APP
Being 0, present is described as " noiseless ", presents color used for green；When degree I that is disturbed of the first WLAN is 0
Between 1, and do not include that 0 when including 1, the annoyance level numerical value presented in APP is 1, and being described as of presenting is " weak dry
Disturb ", presenting color used is yellow；When degree I that is disturbed of the first WLAN is between 1 to 9, and do not include 1 and 9
Time, the annoyance level numerical value presented in APP is the integer value rounded under annoyance level I, and present is described as " middle interference ", in
Existing color used is orange；When the degree that is disturbed of the first WLAN is more than or equal to 9, the interference presented in APP
Degree numerical value is 9, and present is described as " strong jamming ", presents color used for redness.
Pass through technique scheme, it is possible to distinguishing difference and be disturbed degree and carry out correspondence and present, the user that is more convenient for knows nothing
Line LAN is disturbed situation.
In one embodiment, the degree that in the present invention, method may also include the first WLAN is disturbed uploads to cloud
Other equipment in server or the first WLAN.
The annoyance level monitored due to diverse location in consolidated network may differ, server or first wireless
The first wireless office that other equipment (such as AP, or mobile phone, home appliance etc.) in LAN can draw according to multiple positions
Territory net is disturbed degree and calculates overall interference intensity index.Such as, calculate the meansigma methods of the degree that is disturbed of each position, will
Meansigma methods is as interference strength index, or uses additive method to calculate.And it is possible in interference strength index more than second
During predetermined threshold value, it is proposed that change channel in WLAN.
Fig. 4 is the schematic diagram of the application scenarios of one embodiment of the present invention.As shown in Figure 4, the Wi-Fi network of user with
The Wi-Fi network of neighbours' cochannel interferes, and it is respectively Wi-Fi network 1 and Wi-Fi network 2.Setting in Wi-Fi network 1
Standby comprise: the Wi-Fi router 1 of user, and the household electrical appliances 1 that are connected to it under and mobile phone 1.Wi-Fi network 2 comprises the same of next-door
Channel Wi-Fi router 2, and the mobile phone 2 being connected under it.All devices is operated in same channel.In the present embodiment, it is in
Realize Wi-Fi network 1 by the monitoring of Wi-Fi network 2 annoyance level and is presented on electricity 1.As it is shown in figure 5, can hold in household electrical appliances 1
Row following steps.
In step S502, household electrical appliances 1 monitoring receives packet in Wi-Fi network 1 and Wi-Fi network 2, solves from packet
Separate out about WLAN belonging to data transmission and the information of the shared duration of data transmission.In step S504, household electrical appliances 1
Wi-Fi network 1 is calculated according to the information about WLAN belonging to data transmission and the shared duration of data transmission parsed
Channel duty cycle K0Channel duty cycle K with Wi-Fi network 21.Household electrical appliances 1 according to the packet monitored and self send
Packet can be derived that the letter of the busy channel that communicates before Wi-Fi router 1 is mutual with household electrical appliances 1 and mobile phone 1 in Wi-Fi network 1
Road dutycycle K0, and the channel duty of Wi-Fi router 2 before communicate busy channel mutual with mobile phone 2 in Wi-Fi network 2
Compare K1.In step S506, household electrical appliances 1 calculate the channel duty cycle K of Wi-Fi network 10Channel duty cycle K with Wi-Fi network 21
Add and.In step S508, household electrical appliances 1 judge to add and whether exceed predetermined threshold value 90%.In step S510, when adding and exceeding
During predetermined threshold value 90%, it is K that household electrical appliances 1 calculate the degree that is disturbed of Wi-Fi network 11/K0.In step S512, when adding and not having
When exceeding predetermined threshold value 90%, household electrical appliances 1 determine that the degree being disturbed of Wi-Fi network 1 is predetermined minimum 0.In step S514
In, household electrical appliances 1 according to the degree that Wi-Fi network 1 is disturbed in household electrical appliances 1, the situation that is disturbed in various degree is distinguished in
Existing.In step S516, the degree that Wi-Fi network 1 is disturbed is uploaded to Cloud Server by household electrical appliances 1.
Above-described embodiment only illustrates the present invention, is not used in and limits the scope of the invention.
Fig. 6 is the structure chart of the device of interference in the monitoring WLAN according to embodiment of the present invention.This device can
For the various equipment by wlan access network, such as mobile phone, home appliance etc., it is also possible to be used for exclusively carrying out nothing
The equipment of line LAN monitoring.As it is shown in figure 1, this device can include such as lower module.
Signal monitoring parsing module 610, is used for monitoring packet in reception WLAN, parses pass from packet
In WLAN belonging to data transmission and the information of the shared duration of data transmission；
Channel duty cycle computing module 620, for transmitting affiliated WLAN sum according to parse about data
The channel duty cycle of the first WLAN is calculated and in addition to the first WLAN according to the information of the shared duration of transmission
The channel duty cycle of other WLANs one or more, using the one or more other WLAN as interference net
Network；
Interference determines module 630, for the channel duty cycle according to described first WLAN and described interference network
Channel duty cycle determine the degree that the first WLAN is disturbed.
In one embodiment, interference determine module 630 for calculate described first WLAN channel duty cycle and
Described interference net in one or more channel duty cycle add and；Add described in judgement and whether exceed predetermined threshold value；When described
When adding and exceed predetermined threshold value, utilize with one in the channel duty cycle of described first WLAN and described interference network or
The function that the channel duty cycle of many persons is associated calculates the degree that described first WLAN is disturbed；Add when described and do not have
When exceeding predetermined threshold value, determine that the degree that described first WLAN is disturbed is predetermined minimum；
Wherein, predetermined threshold value is less than or equal to 1；Predetermined minimum is less than or equal to described functional minimum value.
Wherein, the functional value of described function reduces with the increase of the channel duty cycle of described first WLAN, with
The increase of the channel duty cycle of described interference network and increase.
In one embodiment, interference determine module 630 for in multiple interference networks each, respectively according to described
Channel duty cycle in the channel duty cycle of the first WLAN and described interference network calculates described first WLAN
It is disturbed degree relative to described interference network.
In one embodiment, signal monitoring parsing module 610 is additionally operable to for non-for carrying data in WLAN
The signal of bag is monitored；
The intensity that channel duty cycle computing module 620 is additionally operable to according to the described signal monitored determines not wireless in network
The channel duty cycle of LAN, using described network of non-radio local as interference network.
In one embodiment, as it is shown in fig. 7, described device also includes: interference presents module 710, for according to the first nothing
The degree that line LAN is disturbed carries out difference to the situation that is disturbed in various degree and presents.
In one embodiment, as shown in Figure 8, described device also includes: transmission module 810 in interference, for wireless by first
The degree that LAN is disturbed uploads to other equipment in Cloud Server or described first WLAN.
Said apparatus is corresponding with preceding method, and the detailed description of the invention for device can be found in detailed description in method,
Do not repeat them here.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, technical scheme can be carried out multiple letter
Monotropic type, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (14)
1. monitoring a method for interference in WLAN, the method includes:
Monitoring receives packet in WLAN, parses about WLAN sum belonging to data transmission from packet
Information according to the shared duration of transmission；
The information about WLAN belonging to data transmission and the shared duration of data transmission according to parsing calculates first
The channel duty cycle of WLAN and the channel of other WLANs one or more in addition to the first WLAN
Dutycycle, using the one or more other WLAN as interference network；
Channel duty cycle and the channel duty cycle of described interference network according to described first WLAN determine that first is wireless
The degree that LAN is disturbed.
Method the most according to claim 1, it is characterised in that the described channel duty according to described first WLAN
Determine that the degree that the first WLAN is disturbed includes than the channel duty cycle with described interference network:
Calculate one or more channel duty cycle in the channel duty cycle of described first WLAN and described interference net
Add and；
Add described in judgement and whether exceed predetermined threshold value；
When described add and exceed predetermined threshold value time, utilize and the channel duty cycle of described first WLAN and described interference net
The function that in network, one or more channel duty cycle is associated calculates the degree that described first WLAN is disturbed；
When described add and be not above predetermined threshold value time, determine that degree that described first WLAN is disturbed is for presetting minimum
Value；
Wherein, predetermined threshold value is less than or equal to 1；Predetermined minimum is less than or equal to described functional minimum value.
Method the most according to claim 2, it is characterised in that the functional value of described function is with described first WLAN
The increase of channel duty cycle and reduce, increase with the increase of channel duty cycle of described interference network.
4. according to the arbitrary described method of claims 1 to 3, it is characterised in that described according to described first WLAN
The channel duty cycle of channel duty cycle and described interference network determines that the degree that the first WLAN is disturbed includes: for many
In individual interference network each, respectively according to the letter in the channel duty cycle of described first WLAN and described interference network
Road dutycycle calculates described first WLAN and is disturbed degree relative to described interference network.
5. according to the arbitrary described method of claims 1 to 3, it is characterised in that described method is determining the first WLAN
Also include before the degree being disturbed:
It is monitored for carrying the signal of packet in WLAN for non-；
Intensity according to the described signal monitored determines the channel duty cycle of network of non-radio local in network, by described not wireless
LAN is as interference network.
Method the most according to claim 1, it is characterised in that described method also includes:
The degree being disturbed according to the first WLAN carries out difference to the situation that is disturbed in various degree and presents.
Method the most according to claim 1, it is characterised in that described method also includes: by the first WLAN by dry
The degree disturbed uploads to other equipment in Cloud Server or described first WLAN.
8. monitoring a device for interference in WLAN, this device includes:
Signal monitoring parsing module, is used for monitoring packet in reception WLAN, parses about data from packet
WLAN belonging to transmission and the information of the shared duration of data transmission；
Channel duty cycle computing module, for transmitting institute according to parse about WLAN and data belonging to data transmission
The information taking duration calculates the channel duty cycle of the first WLAN and in addition to the first WLAN or many
The channel duty cycle of other WLANs individual, using the one or more other WLAN as interference network；
Interference determines module, for accounting for according to the channel duty cycle of described first WLAN and the channel of described interference network
Empty ratio determines the degree that the first WLAN is disturbed.
Device the most according to claim 8, it is characterised in that described interference determines that module is described first wireless for calculating
In the channel duty cycle of LAN and described interference net one or more channel duty cycle add and；Add described in judgement and whether
Exceed predetermined threshold value；When described add and exceed predetermined threshold value time, utilize with the channel duty cycle of described first WLAN and
The function that in described interference network, one or more channel duty cycle is associated calculates described first WLAN and is disturbed
Degree；When described add and be not above predetermined threshold value time, determine that the degree that described first WLAN is disturbed is default
Minima；
Wherein, predetermined threshold value is less than or equal to 1；Predetermined minimum is less than or equal to described functional minimum value.
Device the most according to claim 9, it is characterised in that the functional value of described function is with described first wireless local
The increase of channel duty cycle of net and reduce, increase with the increase of channel duty cycle of described interference network.
11. according to Claim 8 to 10 arbitrary described devices, it is characterised in that described interference determines that module is for for many
In individual interference network each, respectively according to the letter in the channel duty cycle of described first WLAN and described interference network
Road dutycycle calculates described first WLAN and is disturbed degree relative to described interference network.
12. according to Claim 8 to 10 arbitrary described devices, it is characterised in that described signal monitoring parsing module is additionally operable to
It is monitored for carrying the signal of packet in WLAN for non-；
The intensity that described channel duty cycle computing module is additionally operable to according to the described signal monitored determines not wireless office in network
The channel duty cycle of territory net, using described network of non-radio local as interference network.
13. devices according to claim 8, it is characterised in that described device also includes:
Interference presents module, carries out the situation that is disturbed in various degree for the degree being disturbed according to the first WLAN
Difference presents.
14. devices according to claim 8, it is characterised in that described device also includes:
Transmission module in interference, for uploading to Cloud Server or described first wireless by the degree that the first WLAN is disturbed
Other equipment in LAN.
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