CN103874087A - WLAN (wireless local area network) wireless signal coverage quality evaluation method and device - Google Patents
WLAN (wireless local area network) wireless signal coverage quality evaluation method and device Download PDFInfo
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Abstract
The invention provides a WLAN (wireless local area network) wireless signal coverage quality evaluation method and a WLAN wireless signal coverage quality evaluation device. The method comprises the following steps that terminal signal parameters reported by a plurality of terminals connected to an AP (access point) in a first preset time period is obtained, and the AP emission power of the AP is obtained, wherein the terminal signal parameter comprises a terminal physical address and the uplink signal intensity; the terminal emission power of the terminal is obtained according to a terminal physical address, the downlink signal intensity of signals sent by the AP and received by each terminal is calculated according to the uplink signal intensity of the terminal, the AP emission power and the terminal emitting power, and the coverage percentage of terminals with the downlink signal intensity being greater than a preset average value accounting for the total number of the terminals is calculated in the first preset time period; whether the coverage percentage is smaller than preset coverage percentage or not is judged, and if so, the weak coverage existence of the AP is judged. Through collecting the terminal signal parameters and the AP information, the coverage quality of wireless signals can be accurately judged without artificial test.
Description
Technical field
The present invention relates to the communication technology in communication network, relate in particular to a kind of wlan network wireless signal covering quality appraisal procedure and device.
Background technology
In present mobile communication, Wi-Fi business has been penetrated into the every field of people's work and life as a kind of communication mode easily, become important wireless network.Therefore the wireless signal covering quality problem of WLAN (Wireless Local Area Networks is called for short WLAN) is the matter of utmost importance that network optimization work will solve.In prior art, assess wlan network coverage condition by following two kinds of methods: method one, dependence test instrumentation carry out field measurement.Optimize personnel's handheld instrument by third party, each wireless access points (Access Point is called for short AP) is carried out to the test of blanket type, according to test result critic network coverage condition.Method two, dependence user service condition critic network covering quality.Cannot open certification page when there being customer complaint cannot be connected to after wlan network, network connect, or while opening the situations such as certification page speed is slow, user may be a little less than wlan network overlay area.Receive after this type of customer complaint, arrange tester scene to carry out coverage test critic network coverage condition, find out weak overlay area.
But these two kinds of appraisal procedures are held table walking test because needs arrange tester scene, testing cost is high, tests length consuming time.
Summary of the invention
For the above-mentioned defect of conventional art, the embodiment of the present invention provides a kind of wlan network wireless signal covering quality appraisal procedure and device.
The embodiment of the present invention provides a kind of wlan network wireless signal covering quality appraisal procedure, comprising:
Obtain the terminal signaling parameter of the multiple terminal to report that are connected to AP in the first preset period of time, described terminal signaling parameter comprises terminal physical address and uplink signal strength, obtains the AP transmitting power of described AP;
Obtain the terminal transmit power of described terminal according to described terminal physical address, according to the uplink signal strength of described terminal, described AP transmitting power and described terminal transmit power, calculate the downstream signal intensity that described terminal receives described AP transmitted signal, calculate in the first preset period of time, the terminal that described downstream signal intensity is greater than default average accounts for the percentage of coverage of total number of terminals;
Judge whether described percentage of coverage is less than default percentage of coverage, if judge that described AP exists weak covering.
The embodiment of the present invention provides a kind of wlan network wireless signal covering quality apparatus for evaluating, comprising:
Acquisition module, for obtaining the terminal signaling parameter of the multiple terminal to report that are connected to AP in the first preset period of time, described terminal signaling parameter comprises terminal physical address and uplink signal strength, obtains the AP transmitting power of described AP;
Processing module, for obtain the terminal transmit power of described terminal according to described terminal physical address, according to the uplink signal strength of described terminal, described AP transmitting power and described terminal transmit power, calculate the downstream signal intensity that described terminal receives described AP transmitted signal, calculate in the first preset period of time, the terminal that described downstream signal intensity is greater than default average accounts for the percentage of coverage of total number of terminals;
Judge module, for judging whether described percentage of coverage is less than default percentage of coverage, if judge that described AP exists weak covering.
In the technical scheme of the present embodiment, wlan network wireless signal covering quality apparatus for evaluating passes through conventional network equipment, obtain terminal signaling parameter and AP transmitting power that AP connects lower all terminals, and calculate the downstream signal intensity of AP to terminal under each connection according to terminal signaling parameter and AP transmitting power.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generates AP and covers the sample space of statistics, and can go out the wireless signal covering quality under this AP by accurate evaluation according to default evaluation criteria.Realize without artificial on-the-spot test and can obtain the downstream signal intensity of AP to each terminal accurately, reduced assessed cost, improved assess effectiveness.
Accompanying drawing explanation
Fig. 1 is the flow chart of wlan network wireless signal covering quality appraisal procedure of the present invention the first embodiment;
Fig. 2 is the flow chart of wlan network wireless signal covering quality appraisal procedure of the present invention the second embodiment;
Fig. 3 is the flow chart of wlan network wireless signal covering quality appraisal procedure of the present invention the 3rd embodiment;
Fig. 4 is the structural representation of wlan network wireless signal covering quality apparatus for evaluating of the present invention the first embodiment;
Fig. 5 is the structural representation of wlan network wireless signal covering quality apparatus for evaluating of the present invention the second embodiment;
Fig. 6 is the structural representation of wlan network wireless signal covering quality apparatus for evaluating of the present invention the 3rd embodiment.
Embodiment
Fig. 1 is the flow chart of wlan network wireless signal covering quality appraisal procedure of the present invention the first embodiment, as shown in Figure 1, the wlan network wireless signal covering quality appraisal procedure that the embodiment of the present invention provides is carried out by wlan network wireless signal covering quality apparatus for evaluating, this wlan network wireless signal covering quality apparatus for evaluating is arranged on the server of network side, with wireless controller (WirelessAccess Point Controller is called for short AC) communication connection.
In wlan network, terminal is connected to after AP, realize function of surfing the Net by passing mutually packet with AP, in the time that AP issues packet to terminal with certain transmitting power, because signal is in transmitting procedure, have path loss, terminal is in the time receiving the packet that AP issues, and downstream signal intensity can reduce.Wherein, downstream signal intensity refers in the time that AP sends a signal to terminal, the signal strength signal intensity of terminal reception signal.Equally when terminal during to AP, path loss also can occur with certain transmitting power uploading data bag, when AP receives the packet that terminal uploads, uplink signal strength also can diminish.Wherein, uplink signal strength refers to when terminal sends a signal to this AP, the signal strength signal intensity of AP reception signal.Therefore in the time of assessment wlan network wireless signal covering quality, the downstream signal intensity receiving take terminal is basis for estimation, and the AP wireless signal covering quality that downstream signal intensity is large is high.
Because the wlan device of the each equipment manufacturer in existing network is all supported terminal signaling parameter and the AP transmitting power of acquisition terminal therefore can draw desired parameters according to the equipment in existing network.
Wlan network wireless signal covering quality apparatus for evaluating can adopt the form of software and/or hardware to realize, and the method comprises:
Step S100, obtains the terminal signaling parameter of the multiple terminal to report that are connected to AP in the first preset period of time, and described terminal signaling parameter comprises terminal physical address and uplink signal strength, obtains the AP transmitting power of described AP;
Step S102, obtain the terminal transmit power of described terminal according to described terminal physical address, according to the uplink signal strength of described terminal, described AP transmitting power and described terminal transmit power, calculate the downstream signal intensity that described terminal receives described AP transmitted signal, calculate in the first preset period of time, the terminal that described downstream signal intensity is greater than default average accounts for the percentage of coverage of total number of terminals;
Step S104, judges whether described percentage of coverage is less than default percentage of coverage, if enter step S106;
Step S106, judges that described AP exists weak covering.
Particularly, within a period of time, under AP, connect multiple terminals, and terminal to report terminal signaling parameter is to WLAN AC equipment, wlan network wireless signal covering quality apparatus for evaluating and AC communication connection, thus AC can obtain the terminal signaling parameter of all terminals that are connected to AP.Wherein, terminal signaling parameter comprises terminal physical address and uplink signal strength.AC equipment can get the AP transmitting power of AP, and therefore this device can obtain AP transmitting power by AC, (AP transmitting power by parameter configuration, can directly read on AC).
Because terminal physical address is global unique identification information, therefore can obtain the terminal transmit power of terminal by terminal physical address, wherein terminal transmit power is the rated value that terminal arranges.According to terminal transmit power, uplink signal strength and AP transmitting power, calculate the downstream signal intensity that obtains AP.This device obtains the terminal parameter information of all terminals under AP in the first preset period of time, and calculates the downstream signal intensity of acquisition AP to each terminal.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generate the sample space that AP covers statistics, statistics is in the first preset period of time, downstream signal intensity is greater than the number of terminals of default average, and calculates this number of terminals and account for the percentage of coverage of all total number of terminals.Judge whether percentage of coverage is less than default percentage of coverage, judge in the first preset period of time, whether downstream signal intensity does not meet the number of terminals that default average requires too much, illustrates at most and under this AP, has weak covering if crossed.
Wherein the first preset period of time, default average and default percentage of coverage are arranged by operator, and in a preferred embodiment, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
In the technical scheme of the present embodiment, wlan network wireless signal covering quality apparatus for evaluating passes through conventional network equipment, obtain terminal signaling parameter and AP transmitting power that AP connects lower all terminals, and calculate the downstream signal intensity of AP to terminal under each connection according to terminal signaling parameter and AP transmitting power.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generates AP and covers the sample space of statistics, and can go out the wireless signal covering quality under this AP by accurate evaluation according to default evaluation criteria.Realize without artificial on-the-spot test and can obtain the downstream signal intensity of AP to each terminal accurately, reduced assessed cost, improved assess effectiveness.
Fig. 2 is the flow chart of wlan network wireless signal covering quality appraisal procedure of the present invention the second embodiment, as shown in Figure 2, the wlan network wireless signal covering quality appraisal procedure that the embodiment of the present invention provides is carried out by wlan network wireless signal covering quality apparatus for evaluating, and the method comprises:
Step S200, obtains in the first preset period of time, and each terminal reports the number of times that reports of described terminal signaling parameter in the second preset period of time;
Whether step S202, report described in judgement number of times to be greater than and defaultly report number of times, if described terminal report number of times to be greater than describedly defaultly to report number of times, enter step S204, describedly defaultly report number of times to get rid of this terminal if be less than;
Step S204, obtains the terminal signaling parameter of described terminal in described the second preset period of time, and described terminal signaling parameter comprises terminal physical address and uplink signal strength;
Step S206, obtains the AP transmitting power of described AP;
Step S208, obtain the terminal transmit power of described terminal according to described terminal physical address, according to the uplink signal strength of described terminal, described AP transmitting power and described terminal transmit power, calculate the downstream signal intensity that described terminal receives described AP transmitted signal, calculate in the first preset period of time, the terminal that described downstream signal intensity is greater than default average accounts for the percentage of coverage of total number of terminals;
Step S210, judges whether described percentage of coverage is less than default percentage of coverage, if enter step S212;
Step S212, judges that described AP exists weak covering.
Particularly, in the time that terminal use's position changes, under AP, signalling to the downstream signal intensity of this terminal also can correspondingly change, therefore in order accurately judge that AP covers lower wireless network signal covering quality, choose terminal parameter information that the fixing terminal use in the interior position of surfing the Net of a certain period reports in this period as sampled point.
Terminal reports granularity reporting terminal parameter information to AC according to systemic presupposition, therefore when within continuous a period of time, a certain terminal to report number of times to be greater than default while reporting number of times, can judge that this terminal is in a fixed position at present.
First wlan network wireless signal covering quality apparatus for evaluating obtains the number of times that reports of in the second preset period of time each terminal to report terminal signaling parameter, whether the number of times that reports that judges each terminal is greater than the default number of times that reports, if can judge that this terminal resides in this AP at present, otherwise judge that this terminal is in mobile status.Choose and report number of times to be greater than the terminal signaling parameter of the default terminal that reports number of times in the second preset period of time as sampled point, and obtain the terminal signaling parameter of sampled point, wherein terminal signaling parameter comprises terminal physical address and uplink signal strength.
For example, the granularity that reports of terminal is five minutes granularities, and establishing the second preset period of time is 30 minutes.In the time that the sampled point of same terminal is greater than 6, (do not comprise 6), the residence time of this terminal is more than 30 minutes.
This device, according to terminal transmit power, uplink signal strength and the AP transmitting power of the sampled point obtaining, calculates the downstream signal intensity that obtains the terminal of AP to sampled point.Downstream signal intensity when each terminal being reached the standard grade according to the mode of mathematical statistics is carried out polymerization, generate the sample space that AP covers statistics, statistics is in the first preset period of time, downstream signal intensity is greater than the number of terminals of default average, and calculates this number of terminals and account for the percentage of coverage of all sampled point total number of terminals.Judge whether percentage of coverage is less than default percentage of coverage, judge in the first preset period of time, whether downstream signal intensity does not meet the number of terminals that default average requires too much, illustrates at most and under this AP, has weak covering if crossed.
Wherein the first preset period of time, default average and default percentage of coverage are arranged by operator, and in a preferred embodiment, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
In the technical scheme of the present embodiment, wlan network wireless signal covering quality apparatus for evaluating passes through conventional network equipment, obtain terminal signaling parameter and AP transmitting power that AP connects lower all terminals, and calculate the downstream signal intensity of AP to terminal under each connection according to terminal signaling parameter and AP transmitting power.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generates AP and covers the sample space of statistics, and can go out the wireless signal covering quality under this AP by accurate evaluation according to default evaluation criteria.Realize without artificial on-the-spot test and can obtain the downstream signal intensity of AP to each terminal accurately, reduced assessed cost, improved assess effectiveness.
Fig. 3 is the flow chart of wlan network wireless signal covering quality appraisal procedure of the present invention the 3rd embodiment, as shown in Figure 3, the wlan network wireless signal covering quality appraisal procedure that the embodiment of the present invention provides is carried out by wlan network wireless signal covering quality apparatus for evaluating, and the method comprises:
Step S300, obtains the terminal signaling parameter of the multiple terminal to report that are connected to AP in the first preset period of time, and described terminal signaling parameter comprises terminal physical address and uplink signal strength, obtains the AP transmitting power of described AP;
Step S302, according to described terminal physical address, obtains the device type of described terminal;
Step S304, obtains the terminal transmit power of described terminal according to the device type of described terminal;
Step S306, calculates channel power attenuation value, and described channel power attenuation value equals described terminal transmit power and deduct the uplink signal strength of described terminal;
Step S308, calculates described terminal and receives the downstream signal intensity of described AP transmitted signal, and described downstream signal intensity equals described AP transmitting power and deducts described channel power attenuation value;
Step S310, calculates in the first preset period of time, and the terminal that described downstream signal intensity is greater than default average accounts for the percentage of coverage of total number of terminals;
Step S312, judges whether described percentage of coverage is less than default percentage of coverage, if enter step S314;
Step S314, judges that described AP exists weak covering.
Particularly, wlan network wireless signal covering quality apparatus for evaluating and AC communicate to connect, and obtain the terminal signaling parameter of all terminals that are connected to AP.Wherein, terminal signaling parameter comprises terminal physical address and uplink signal strength.And obtain AP transmitting power by AC, wherein AP transmitting power is the rated value that operator arranges.
According to the standard of IEEE, the first six digits of terminal physical address, corresponding to the production firm of terminal, is therefore mated parsing by the first six digits the terminal physical address collecting at every turn, and the device type that can obtain this terminal is computer terminal or mobile phone terminal.The terminal transmit power of distinct device type is rated value, and wherein notebook computer terminal network interface card transmitting power 30～40mW, is converted into 14.8～16dBm; Panel computer terminal network interface card transmitting power is 35mW, is converted into 15.4dBm; Mobile phone terminal network interface card transmitting power is 25～30mW, is converted into 14～14.8dBm.For example, the terminal physical address first six digits of certain terminal is " 00:26:C7 ", and the device type that can find this terminal according to this six place value is computer.
According to terminal transmit power, uplink signal strength and AP transmitting power, calculate the downstream signal intensity that obtains AP.Circular is:
Wlan network air interface adopts half-duplex transmission pattern, same channel frequency synchronization can only carry out the single transmission of upstream or downstream, but be same channel what uplink and downlink transmission do not adopt in the same time, thereby the path loss of uplink and the path loss of downlink transfer can be thought to equate substantially.Can obtain thus uplink signal strength and the downstream signal strength calculation method of wlan network, specific as follows:
P
up=P
sTA-PL
up
P
descending=P
aP-PL
descending
1.P
upfor the uplink signal strength that AP receives, unit is dBm.
2.P
descendingfor the downstream signal intensity that terminal receives, unit is dBm.
3.P
sTAfor the transmitting power of terminal, unit is dBm.
4.P
aPfor the transmitting power of AP, unit is dBm.
5.PL is the path loss in signals transmission, because WLAN adopts semiduplex transmission means, can substantially think PL
up=PL
descending.
Therefore, by the P collecting
up(AP receives the uplink signal strength of terminal) can convert out P
descending(terminal receives the downstream signal intensity of AP).Formula is as follows:
P
descending=P
aP-(P
sTA-P
up)
Calculate obtain AP to the downstream signal intensity of each terminal after, downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generate the sample space that AP covers statistics, statistics is in the first preset period of time, downstream signal intensity is greater than the number of terminals of default average, and calculates this number of terminals and account for the percentage of coverage of all total number of terminals.Judge whether percentage of coverage is less than default percentage of coverage, judge in the first preset period of time, whether downstream signal intensity does not meet the number of terminals that default average requires too much, illustrates at most and under this AP, has weak covering if crossed.
Wherein the first preset period of time, default average and default percentage of coverage are arranged by operator, and in a preferred embodiment, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
In the technical scheme of the present embodiment, wlan network wireless signal covering quality apparatus for evaluating passes through conventional network equipment, obtain terminal signaling parameter and AP transmitting power that AP connects lower all terminals, and calculate the downstream signal intensity of AP to terminal under each connection according to terminal signaling parameter and AP transmitting power.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generates AP and covers the sample space of statistics, and can go out the wireless signal covering quality under this AP by accurate evaluation according to default evaluation criteria.Realize without artificial on-the-spot test and can obtain the downstream signal intensity of AP to each terminal accurately, reduced assessed cost, improved assess effectiveness.
Fig. 4 is the structural representation of wlan network wireless signal covering quality apparatus for evaluating of the present invention the first embodiment, as shown in Figure 4, this wlan network wireless signal covering quality apparatus for evaluating is arranged on the server of network side, with wireless controller (Wireless Access Point Controller is called for short AC) communication connection.This device comprises acquisition module 10, processing module 12, and judge module 14, wherein:
Particularly, terminal to report terminal signaling parameter is to WLAN AC equipment, and AC transmitting terminal signal parameter and AP transmitting power are to acquisition module 10, wherein, terminal signaling parameter comprises terminal physical address and uplink signal strength, and AP transmitting power is the rated value that operator arranges.
Wherein the first preset period of time, default average and default percentage of coverage are arranged by operator, and in a preferred embodiment, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
In the technical scheme of the present embodiment, wlan network wireless signal covering quality apparatus for evaluating passes through conventional network equipment, obtain terminal signaling parameter and AP transmitting power that AP connects lower all terminals, and calculate the downstream signal intensity of AP to terminal under each connection according to terminal signaling parameter and AP transmitting power.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generates AP and covers the sample space of statistics, and can go out the wireless signal covering quality under this AP by accurate evaluation according to default evaluation criteria.Realize without artificial on-the-spot test and can obtain the downstream signal intensity of AP to each terminal accurately, reduced assessed cost, improved assess effectiveness.
Fig. 5 is the structural representation of wlan network wireless signal covering quality apparatus for evaluating of the present invention the second embodiment, as shown in Figure 5, this wlan network wireless signal covering quality apparatus for evaluating is arranged on the server of network side, with wireless controller (Wireless Access Point Controller is called for short AC) communication connection.This device comprises acquisition module 20, processing module 22, and judge module 24, and wherein processing module 22 and judge module 24 are identical with corresponding functions of modules in above-described embodiment.
Report number of times acquiring unit 201, for obtaining in the first preset period of time, each terminal reports the number of times that reports of described terminal signaling parameter in the second preset period of time;
Report number of times judging unit 202, described in judging, report number of times whether to be greater than the default number of times that reports;
Particularly, report number of times acquiring unit 201 first to obtain the number of times that reports of in the second preset period of time each terminal to report terminal signaling parameter, send and report number of times Excelsior number of times judging unit 202.Report number of times judging unit 202 to judge whether the number of times that reports of each terminal is greater than the default number of times that reports, if can judge that this terminal resides in this AP at present, otherwise judge that this terminal is in mobile status, and judged result is sent to parameter acquiring unit 203, indication parameter acquiring unit 203 is chosen and is reported number of times to be greater than the terminal signaling parameter of the default terminal that reports number of times in the second preset period of time as sampled point, and obtain the terminal signaling parameter of sampled point, wherein terminal signaling parameter comprises terminal physical address and uplink signal strength.
For example, the granularity that reports of terminal is five minutes granularities, and establishing the second preset period of time is 30 minutes.In the time that the sampled point of same terminal is greater than 6, (do not comprise 6), the residence time of this terminal is more than 30 minutes.
Wherein the first preset period of time, default average and default percentage of coverage are arranged by operator, and in a preferred embodiment, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
In the technical scheme of the present embodiment, wlan network wireless signal covering quality apparatus for evaluating passes through conventional network equipment, obtain terminal signaling parameter and AP transmitting power that AP connects lower all terminals, and calculate the downstream signal intensity of AP to terminal under each connection according to terminal signaling parameter and AP transmitting power.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generates AP and covers the sample space of statistics, and can go out the wireless signal covering quality under this AP by accurate evaluation according to default evaluation criteria.Realize without artificial on-the-spot test and can obtain the downstream signal intensity of AP to each terminal accurately, reduced assessed cost, improved assess effectiveness.
Fig. 6 is the structural representation of wlan network wireless signal covering quality apparatus for evaluating of the present invention the 3rd embodiment, as shown in Figure 6, this wlan network wireless signal covering quality apparatus for evaluating is arranged on the server of network side, with wireless controller (Wireless Access Point Controller is called for short AC) communication connection.This device comprises acquisition module 30, processing module 32, and judge module 34, and wherein acquisition module 30 and judge module 34 are identical with corresponding functions of modules in above-described embodiment.
Wherein processing module 32 comprises:
The first computing unit 321, for according to described terminal physical address, obtains the device type of described terminal;
The second computing unit 322, for obtaining the terminal transmit power of described terminal according to the device type of described terminal.
The 3rd computing unit 323, for calculating channel power attenuation value, described channel power attenuation value equals described terminal transmit power and deducts the uplink signal strength of described terminal;
The 4th computing unit 324, receives the downstream signal intensity of described AP transmitted signal for calculating described terminal, described downstream signal intensity equals described AP transmitting power and deducts described channel power attenuation value.
Particularly, the acquisition module 30 of wlan network wireless signal covering quality apparatus for evaluating communicates to connect with AC, obtains the terminal signaling parameter of all terminals that are connected to AP.Wherein, terminal signaling parameter comprises terminal physical address and uplink signal strength.And obtain AP transmitting power by AC, wherein AP transmitting power is the rated value that operator arranges.
According to the standard of IEEE, the first six digits of terminal physical address is corresponding to the production firm of terminal, therefore the first computing unit 321 mates parsing by the first six digits the terminal physical address collecting at every turn, the device type that can obtain this terminal is computer terminal or mobile phone terminal, transmission device types to the second computing unit 322.The second computing unit 322 obtains the terminal transmit power of described terminal according to the device type of described terminal, terminal transmit power is rated value, and wherein notebook computer terminal network interface card transmitting power 30～40mW, is converted into 14.8～16dBm; Panel computer terminal network interface card transmitting power is 35mW, is converted into 15.4dBm; Mobile phone terminal network interface card transmitting power is 25～30mW, is converted into 14～14.8dBm.For example, the terminal physical address first six digits of certain terminal is " 00:26:C7 ", and the device type that can find this terminal according to this six place value is computer, the second computing unit 322 transmitting terminal transmitting power to the three computing units 323.
The 3rd computing unit 323 and the 4th computing unit 324, according to terminal transmit power, uplink signal strength and AP transmitting power, calculate the downstream signal intensity that obtains AP.Circular is:
Wlan network air interface adopts half-duplex transmission pattern, same channel frequency synchronization can only carry out the single transmission of upstream or downstream, but be same channel what uplink and downlink transmission do not adopt in the same time, thereby the path loss of uplink and the path loss of downlink transfer can be thought to equate substantially.Can obtain thus uplink signal strength and the downstream signal strength calculation method of wlan network, specific as follows:
P
up=P
sTA-PL
up
P
descending=P
aP-PL
descending
1.P
upfor the uplink signal strength that AP receives, unit is dBm.
2.P
descendingfor the downstream signal intensity that terminal receives, unit is dBm=
3.P
sTAfor the transmitting power of terminal, unit is dBm.
4.P
aPfor the transmitting power of AP, unit is dBm.
5.PL is the path loss in signals transmission, because WLAN adopts semiduplex transmission means, can substantially think PL
up=PL
descending.
Therefore, by the P collecting
up(AP receives the uplink signal strength of terminal) can convert out P
descending(terminal receives the downstream signal intensity of AP).Formula is as follows:
P
descending=P
aP-(P
sTA-P
up)
Calculate obtain AP to the downstream signal intensity of each terminal after, downstream signal intensity when each terminal being reached the standard grade according to the mode of mathematical statistics is carried out polymerization, generate the sample space that AP covers statistics, statistics is in the first preset period of time, downstream signal intensity is greater than the number of terminals of default average, and calculate this number of terminals and account for the percentage of coverage of all total number of terminals, send percentage of coverage to judge module 324.
Wherein the first preset period of time, default average and default percentage of coverage are arranged by operator, and in a preferred embodiment, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
In the technical scheme of the present embodiment, wlan network wireless signal covering quality apparatus for evaluating passes through conventional network equipment, obtain terminal signaling parameter and AP transmitting power that AP connects lower all terminals, and calculate the downstream signal intensity of AP to terminal under each connection according to terminal signaling parameter and AP transmitting power.Downstream signal intensity when this device is reached the standard grade to each terminal according to the mode of mathematical statistics is carried out polymerization, generates AP and covers the sample space of statistics, and can go out the wireless signal covering quality under this AP by accurate evaluation according to default evaluation criteria.Realize without artificial on-the-spot test and can obtain the downstream signal intensity of AP to each terminal accurately, reduced assessed cost, improved assess effectiveness.
It should be noted that: above embodiment is only unrestricted in order to the present invention to be described, the present invention is also not limited in above-mentioned giving an example, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in claim scope of the present invention.
Claims (10)
1. a wlan network wireless signal covering quality appraisal procedure, is characterized in that, comprising:
Obtain the terminal signaling parameter of the multiple terminal to report that are connected to AP in the first preset period of time, described terminal signaling parameter comprises terminal physical address and uplink signal strength, obtains the AP transmitting power of described AP;
Obtain the terminal transmit power of described terminal according to described terminal physical address, according to the uplink signal strength of described terminal, described AP transmitting power and described terminal transmit power, calculate the downstream signal intensity that described terminal receives described AP transmitted signal, calculate in the first preset period of time, the terminal that described downstream signal intensity is greater than default average accounts for the percentage of coverage of total number of terminals;
Judge whether described percentage of coverage is less than default percentage of coverage, if judge that described AP exists weak covering.
2. wlan network wireless signal covering quality appraisal procedure according to claim 1, is characterized in that, described in obtain the multiple terminal to report that are connected to AP in the first preset period of time terminal signaling parameter step comprise:
Obtain in the first preset period of time, each terminal reports the number of times that reports of described terminal signaling parameter in the second preset period of time;
Described in judgement, report number of times whether to be greater than the default number of times that reports;
If described terminal report number of times to be greater than describedly default to report number of times, obtain the terminal signaling parameter of described terminal in described the second preset period of time.
3. wlan network wireless signal covering quality appraisal procedure according to claim 1, is characterized in that, the described terminal transmit power step that obtains described terminal according to described terminal physical address comprises:
According to described terminal physical address, obtain the device type of described terminal;
Obtain the terminal transmit power of described terminal according to the device type of described terminal.
4. wlan network wireless signal covering quality appraisal procedure according to claim 1, it is characterized in that, described according to the uplink signal strength of described terminal, described AP transmitting power and described terminal transmit power, calculate the downstream signal intensity step that described terminal receives described AP transmitted signal and comprise:
Calculate channel power attenuation value, described channel power attenuation value equals described terminal transmit power and deducts the uplink signal strength of described terminal;
Calculate the downstream signal intensity that described terminal receives described AP transmitted signal, described downstream signal intensity equals described AP transmitting power and deducts described channel power attenuation value.
5. according to the arbitrary described wlan network wireless signal covering quality appraisal procedure of claim 1-4, it is characterized in that, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
6. a wlan network wireless signal covering quality apparatus for evaluating, is characterized in that, comprising:
Acquisition module, for obtaining the terminal signaling parameter of the multiple terminal to report that are connected to AP in the first preset period of time, described terminal signaling parameter comprises terminal physical address and uplink signal strength, obtains the AP transmitting power of described AP;
Processing module, for obtain the terminal transmit power of described terminal according to described terminal physical address, according to the uplink signal strength of described terminal, described AP transmitting power and described terminal transmit power, calculate the downstream signal intensity that described terminal receives described AP transmitted signal, calculate in the first preset period of time, the terminal that described downstream signal intensity is greater than default average accounts for the percentage of coverage of total number of terminals;
Judge module, for judging whether described percentage of coverage is less than default percentage of coverage, if judge that described AP exists weak covering.
7. wlan network wireless signal covering quality apparatus for evaluating according to claim 6, is characterized in that, described acquisition module comprises:
Report number of times acquiring unit, for obtaining in the first preset period of time, each terminal reports the number of times that reports of described terminal signaling parameter in the second preset period of time;
Report number of times judging unit, described in judging, report number of times whether to be greater than the default number of times that reports;
Parameter acquiring unit, if report number of times to be greater than describedly default to report number of times, obtain the terminal signaling parameter of described terminal in described the second preset period of time for described terminal.
8. wlan network wireless signal covering quality apparatus for evaluating according to claim 6, is characterized in that, described processing module comprises:
The first computing unit, for according to described terminal physical address, obtains the device type of described terminal;
The second computing unit, for obtaining the terminal transmit power of described terminal according to the device type of described terminal.
9. wlan network wireless signal covering quality apparatus for evaluating according to claim 6, is characterized in that, described processing module comprises:
The 3rd computing unit, for calculating channel power attenuation value, described channel power attenuation value equals described terminal transmit power and deducts the uplink signal strength of described terminal;
The 4th computing unit, receives the downstream signal intensity of described AP transmitted signal for calculating described terminal, described downstream signal intensity equals described AP transmitting power and deducts described channel power attenuation value.
10. according to the arbitrary described wlan network wireless signal covering quality apparatus for evaluating of claim 6-9, it is characterized in that, described the first preset period of time is one week, and described default average is-75dbm that described default percentage of coverage is 95%.
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