CN111031566B

CN111031566B - Method and device for evaluating expansion performance of wireless bridging network and wireless device

Info

Publication number: CN111031566B
Application number: CN201911373356.9A
Authority: CN
Inventors: 贺斌; 谈加杰
Original assignee: Pulian International Co ltd
Current assignee: Pulian International Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2023-05-12
Anticipated expiration: 2039-12-25
Also published as: CN111031566A

Abstract

The invention discloses an evaluation method and device for expansion performance of a wireless bridging network and wireless equipment, wherein the method comprises the following steps: acquiring a first corresponding relation; acquiring a second corresponding relation between a second received signal strength indication of the wireless terminal equipment relative to the wireless bridging equipment and a second performance value obtained by the wireless terminal equipment through the wireless bridging equipment under each piece of distance indication information; obtaining a corresponding position point set under each distance indication information from all the position points of the wireless terminal equipment in the plane simulation space according to the first corresponding relation and the second corresponding relation; calculating an expansion area formed by a position point set corresponding to each distance indication information; and evaluating the expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each distance indication information. The invention can evaluate the expansion performance corresponding to all distances between the wireless bridging device and the wireless access device in the global range.

Description

Method and device for evaluating expansion performance of wireless bridging network and wireless device

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for evaluating expansion performance of a wireless bridging network, and a wireless device.

Background

Wireless bridging networks are an effective way to achieve rapid expansion of network coverage, for example, after a wireless bridging device is bridged to a wireless access device, the coverage of the network where the wireless access device is located is expanded, so that a wireless terminal device can access the network in more places. The distance between the wireless bridging device and the wireless access device affects the wireless performance that the wireless terminal device can obtain from the wireless bridging device, and further affects the expansion of the wireless bridging device to the network coverage, i.e. affects the expansion performance of the wireless bridging network.

The evaluation of the expansion performance of the wireless bridging network can be used for judging whether the distance between the wireless bridging device and the wireless access device is reasonable or not, and whether the wireless bridging device can provide sufficient wireless performance for the wireless terminal device or not. For example, an optimal expansion performance is evaluated, and an RSSI value between the wireless bridge device and the wireless access device at the time of obtaining the optimal expansion performance is taken as an RSSI threshold. And when the actual judgment is carried out, comparing the currently detected RSSI value between the wireless bridging device and the wireless access device with an RSSI threshold value, judging whether the distance between the wireless bridging device and the wireless access device is reasonable or not, and if the distance between the wireless bridging device and the wireless access device is not reasonable, adjusting the distance between the wireless bridging device and the wireless access device.

In the prior art, when the expansion performance of the wireless bridging network is evaluated, the wireless bridging network is usually tested in a certain test environment, the distance between the wireless bridging device and the wireless access device is continuously adjusted, and the RSSI value of the wireless bridging device and the expansion performance of the wireless bridging network under each distance are recorded, so that the expansion performance of the wireless bridging network under different distances is obtained. After a plurality of tests, an optimal expansion performance and an RSSI threshold corresponding to the optimal expansion performance are determined.

However, the solution in the prior art can only evaluate the expansion performance of the wireless bridging network in a limited test, that is, the prior art can only evaluate the expansion performance of the wireless bridging network corresponding to a limited distance between the wireless bridging device and the wireless access device, but cannot evaluate the expansion performance of the wireless bridging network corresponding to all distances between the wireless bridging device and the wireless access device in a global range, which is not beneficial to determining an accurate optimal expansion performance and an RSSI threshold corresponding to the optimal expansion performance, and further is not beneficial to accurately judging whether the distance between the wireless bridging device and the wireless access device is reasonable.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present invention is to provide an evaluation method and apparatus for expansion performance of a wireless bridging network, and a wireless device, which can evaluate the expansion performance of the wireless bridging network corresponding to all distances between the wireless bridging device and a wireless access device in a global range, so as to be beneficial to accurately judging whether the distance between the wireless bridging device and the wireless access device is reasonable.

In order to solve the above technical problem, in a first aspect, the present invention provides a method for evaluating expansion performance of a wireless bridging network, where the method includes:

acquiring a first corresponding relation between a first received signal strength indication of wireless terminal equipment relative to wireless access equipment and a first performance value obtained by the wireless terminal equipment through the wireless access equipment;

acquiring a second corresponding relation between a second received signal strength indication of the wireless terminal equipment relative to the wireless bridging equipment and a second performance value obtained by the wireless terminal equipment through the wireless bridging equipment under each piece of distance indication information; the distance indication information is used for indicating the distance between the wireless bridging equipment and the wireless access equipment in a plane simulation space;

Obtaining a position point set corresponding to each distance indication information from all wireless terminal equipment position points in the plane simulation space according to the first corresponding relation and the second corresponding relation corresponding to each distance indication information; when the wireless terminal equipment is located at any wireless terminal equipment position point in the position point set, a fourth performance value obtained by the wireless terminal equipment through the wireless bridging equipment is larger than a third performance value obtained by the wireless terminal equipment through the wireless access equipment;

calculating an expansion area formed by the position point set corresponding to each distance indication information;

and evaluating the expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each distance indication information.

Further, the method obtains a set of location points corresponding to any one of the distance indication information through the following steps:

acquiring a third received signal strength indication of the wireless terminal equipment relative to the wireless access equipment under the condition that the wireless terminal equipment is positioned at each wireless terminal equipment position point; determining that the wireless terminal equipment is positioned under each wireless terminal equipment position point according to the first corresponding relation and the third received signal strength indication, and obtaining a third performance value through the wireless access equipment;

Acquiring a fourth received signal strength indication of the wireless terminal equipment relative to the wireless bridging equipment under the condition that the wireless terminal equipment is positioned at each wireless terminal equipment position point; determining that the wireless terminal equipment is positioned under each wireless terminal equipment position point according to the second corresponding relation corresponding to the distance indication information and the fourth received signal strength indication, and obtaining a fourth performance value through the wireless bridging equipment;

judging whether the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment at each wireless terminal equipment position point; when the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment, the wireless terminal position point where the wireless terminal equipment is positioned is listed as a gathering point;

and obtaining the position point set according to all the gathering points.

Further, N performance difference levels are preset, and the position point set is composed of N position point subsets, where the N position point subsets are in one-to-one correspondence with the N performance difference levels; n >1;

and when the fourth performance value obtained by the wireless terminal device is greater than the obtained third performance value, the wireless terminal position point where the wireless terminal device is located is listed as a collecting point, which specifically includes:

When the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment, calculating a performance difference value between the fourth performance value obtained by the wireless terminal equipment and the third performance value obtained by the wireless terminal equipment;

determining a target performance difference level corresponding to the performance difference value from the N performance difference levels;

determining a target position point subset corresponding to the wireless terminal position point where the wireless terminal equipment is located from N position point sets according to the target performance difference level; and the wireless terminal position points where the wireless terminal equipment is located are listed as the gathering points of the target position point subset;

the obtaining the location point set according to all the collection points specifically includes:

and obtaining each position point subset according to all the gathering points corresponding to each position point subset.

Further, the calculating the extended area formed by the location point set corresponding to each distance indication information specifically includes:

under each distance indication information, calculating an expansion area formed by each position point subset to obtain an expansion area corresponding to each performance difference level;

And evaluating the expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each distance indication information, wherein the method specifically comprises the following steps:

and evaluating the expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each performance difference grade of each distance indication information.

Further, the wireless terminal equipment is located at each wireless terminal equipment position point, and a third received signal strength indication of the wireless terminal equipment relative to the wireless access equipment is obtained; and determining, according to the first correspondence and the third received signal strength indication, that the wireless terminal device is located at each wireless terminal device location point, a third performance value obtained by the wireless access device, including:

detecting a first distance between the wireless terminal equipment and the wireless access equipment under the condition that the wireless terminal equipment is located at each wireless terminal equipment position point;

calculating to obtain the third received signal strength indication according to the first distance and a preset first fitting function;

Calculating to obtain the third performance value according to the third received signal strength indication and a preset first calculation formula; the first calculation formula is constructed according to the first corresponding relation.

Further, the first fitting function is:

RSSI ₃ ＝A ₁ +B ₁ ×(log D ₁ +log M ₁ )；

wherein RSSI ₃ For the third received signal strength indication; a is that ₁ The method comprises the steps of obtaining a preset first fitting parameter; b (B) ₁ The second fitting parameter is preset; d (D) ₁ Is the first distance; m is M ₁ Operating frequency for the wireless access device;

the first calculation formula is:

wherein Thr ₃ Thr is the third property value _1-max Peak value of the first performance value in the first corresponding relation;

in the first correspondence, the first received signal strength indicates RSSI _a The corresponding first performance value; />

In the first correspondence, the first received signal strength indicates RSSI _b The corresponding first performance value; RSSI (received signal strength indicator) _a And RSSI _b Are all pre-calibrated first received signal strength indications.

Further, the method includes acquiring a fourth received signal strength indication of the wireless terminal device relative to the wireless bridging device when the wireless terminal device is located at each wireless terminal device location point; and determining that the wireless terminal device is located under each wireless terminal device location point according to the second corresponding relation corresponding to the distance indication information and the fourth received signal strength indication, where the fourth performance value is obtained through the wireless bridging device specifically includes:

Detecting a second distance between the wireless terminal equipment and the wireless bridging equipment under the condition that the wireless terminal equipment is positioned at each wireless terminal equipment position point;

calculating to obtain the fourth received signal strength indication according to the second distance and a preset second fitting function;

calculating to obtain the fourth performance value according to the fourth received signal strength indication and a preset second calculation formula; the second calculation formula is constructed according to the second corresponding relation.

Further, the second fitting function is:

RSSI ₄ ＝A ₂ +B ₂ ×(log D ₂ +log M ₂ )；

wherein RSSI ₄ For the fourth received signal strength indication; a is that ₂ The third fitting parameter is preset; b (B) ₂ The fourth fitting parameter is preset; d (D) ₂ Is the second distance; m is M ₂ Operating frequency for the wireless bridging device;

the second calculation formula is:

wherein Thr ₄ Thr is the fourth performance value _2-max Peak value of second performance value in the second corresponding relation;

in the second correspondence, the second received signal strength indicates RSSI _c The corresponding second performance value; />

In the second correspondence, the second received signal strength indicates RSSI _d The corresponding second performance value; RSSI (received signal strength indicator) _c And RSSI _d Are both pre-calibrated second received signal strength indications.

Further, the method further comprises:

when the wireless bridging network is not built in advance and the wireless terminal equipment is directly connected to the wireless bridging equipment, acquiring a fifth corresponding relation between a fifth received signal strength indication of the wireless terminal equipment relative to the wireless bridging equipment and a fifth performance value acquired by the wireless terminal equipment through the wireless bridging equipment;

the acquiring a first correspondence between a first received signal strength indication of the wireless terminal device relative to the wireless access device and a first performance value obtained by the wireless terminal device through the wireless access device specifically includes:

and taking the fifth received signal strength indication as the first received signal strength indication, the fifth performance value as the first performance value, and the fifth corresponding relation as the first corresponding relation.

Further, the distance indication information is a received signal strength indication, and the first performance value, the second performance value, the third performance value, and the fourth performance value are throughput.

In order to solve the corresponding technical problem, the present invention also provides an evaluation device for expansion performance of a wireless bridging network, where the device includes:

A first correspondence acquiring module, configured to acquire a first correspondence between a first received signal strength indication of a wireless terminal device relative to a wireless access device and a first performance value acquired by the wireless terminal device through the wireless access device;

a second correspondence acquiring module, configured to acquire, under each distance indication information, a second correspondence between a second received signal strength indication of the wireless terminal device relative to a wireless bridging device and a second performance value acquired by the wireless terminal device through the wireless bridging device; the distance indication information is used for indicating the distance between the wireless bridging equipment and the wireless access equipment in a plane simulation space;

the position point set obtaining module is used for obtaining a position point set corresponding to each distance indication information from all the position points of the wireless terminal equipment in the plane simulation space according to the first corresponding relation and the second corresponding relation corresponding to each distance indication information; when the wireless terminal equipment is located at any wireless terminal equipment position point in the position point set, a fourth performance value obtained by the wireless terminal equipment through the wireless bridging equipment is larger than a third performance value obtained by the wireless terminal equipment through the wireless access equipment;

The expansion area calculation module is used for calculating an expansion area formed by the position point set corresponding to each distance indication information;

and the expansion performance evaluation module is used for evaluating the expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each distance indication information.

In order to solve the corresponding technical problem, the present invention also provides a wireless device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the method for evaluating the expansion performance of the wireless network according to any one of the first aspects when the computer program is executed.

According to the method, the device and the wireless equipment for evaluating the expansion performance of the wireless bridging network, each distance indication information between the wireless bridging device and the wireless access device can be traversed through the plane simulation space, the position point of each wireless terminal device is traversed through the plane simulation space, the expansion area of the wireless bridging network under each distance indication information is obtained through the first corresponding relation and the second corresponding relation, and then the expansion performance of the wireless bridging network under each distance indication information can be evaluated. Because all distances between the wireless bridging device and the wireless access device in the global range can be traversed in the plane simulation space, the position point of each wireless terminal device can be traversed, and the expansion area is obtained by combining the first corresponding relation and the second corresponding relation, the invention can obtain the expansion performance of the wireless bridging network corresponding to all distances between the wireless bridging device and the wireless access device in the global range without being limited by actual test times, and is beneficial to accurately judging whether the distance between the wireless bridging device and the wireless access device is reasonable.

Drawings

FIG. 1 is a schematic diagram of a scenario of a wireless bridged network;

FIG. 2 is a schematic diagram of a wireless attenuation performance curve of a wireless product on the market;

fig. 3 is a flowchart of a preferred embodiment of a method for evaluating extended performance of a wireless bridging network according to the present invention;

FIG. 4 is a schematic diagram of a preferred embodiment of a first correspondence provided by the present invention;

FIG. 5 is a schematic diagram of a preferred embodiment of a second correspondence provided by the present invention;

FIG. 6 is a first schematic illustration of a planar simulation space provided by the present invention;

FIG. 7 is a schematic illustration of one of the set of location points provided by the present invention;

FIG. 8 is a first schematic diagram of a corresponding extended area for each distance indication information provided by the present invention;

FIG. 9 is a flow chart of a preferred embodiment of step S3 of FIG. 3;

FIG. 10 is a second schematic illustration of a planar simulation space provided by the present invention;

FIG. 11 is a schematic illustration of a subset of location points provided by the present invention;

FIG. 12 is a second schematic view of the corresponding extended area for each distance indication information provided by the present invention;

fig. 13 is a schematic structural diagram of a preferred embodiment of an evaluation apparatus for extended performance of a wireless bridging network according to the present invention;

Fig. 14 is a schematic diagram of a wireless device according to a preferred embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

The method for evaluating the expansion performance of the wireless bridging network according to the first embodiment is performed by a wireless bridging device, and the wireless bridging device may be a wireless expansion device (RE), or may be another wireless access device other than the bridged wireless access device, a router, or other wireless devices.

As shown in fig. 1, fig. 1 is a schematic view of a scenario of a wireless bridging network in which a wireless bridging device (RE device of fig. 1) bridges to a wireless access device (wireless AP of fig. 1) to obtain wireless performance, and further expands the network to provide the wireless performance to a connected wireless terminal device. In different wireless bridging networks, the distance between the wireless access device and the wireless bridging device may be different, the distance between the wireless terminal device and the wireless bridging device may be different, so in different wireless bridging networks, the wireless performance obtained by the wireless terminal device directly from the wireless access device may be different, and the wireless performance obtained by the wireless terminal device through the wireless bridging device may be different. And because the wireless bridging device expands the network after acquiring the wireless performance from the wireless access device, the wireless performance acquired by the wireless terminal device from the wireless bridging device is influenced by the distance between the wireless terminal device and the wireless bridging device and the distance between the wireless bridging device and the wireless access device.

The Received Signal Strength Indicator (RSSI) is related to the distance between two devices, and the radio performance varies with the variation of the received signal strength indicator, as shown in fig. 2, fig. 2 is a schematic diagram of the radio attenuation performance curve of a certain radio product on the market. As can be seen from fig. 2, the distance between two devices affects the received signal strength indication of the wireless product, which in turn affects the wireless performance (e.g., throughput in fig. 2) obtained by the wireless product. Therefore, the different distances between the wireless access device and the wireless bridging device can affect how much coverage area the wireless terminal device can obtain wireless performance from the wireless bridging device, and the invention evaluates the expansion performance of the wireless bridging network under different distances between the wireless bridging device and the wireless access device by considering the distance (or RSSI) relation among the wireless terminal device, the wireless bridging device and the wireless access device.

Referring to fig. 3, fig. 3 is a flowchart of a preferred embodiment of a method for evaluating extended performance of a wireless bridging network according to the present invention; specifically, the invention provides a method for evaluating the expansion performance of a wireless bridging network, which comprises the following steps:

S1, acquiring a first corresponding relation between a first received signal strength indication of wireless terminal equipment relative to wireless access equipment and a first performance value obtained by the wireless terminal equipment through the wireless access equipment;

it should be noted that, the first performance value corresponding to each first received signal strength indication in the first correspondence is determined in advance through a test, and a wireless access device with the same or similar attribute as that of the wireless access device used by the actual network may be used in the test. The first corresponding relation obtained by the test is directly used as the first corresponding relation obtained by the invention. After the first corresponding relation is obtained by testing other equipment, the first corresponding relation is stored in the memory of the execution equipment, and when the invention is implemented, the execution equipment obtains the first corresponding relation from the memory.

The test is preferably performed by using a wireless access device having the same attribute as the wireless access device used by the actual network, and the first correspondence is generated so that the extended performance evaluation of the wireless bridging network is more accurate.

S2, under each piece of distance indication information, acquiring a second corresponding relation between a second received signal strength indication of the wireless terminal equipment relative to the wireless bridging equipment and a second performance value obtained by the wireless terminal equipment through the wireless bridging equipment; the distance indication information is used for indicating the distance between the wireless bridging equipment and the wireless access equipment in a plane simulation space;

Note that, the distance indication information may be a distance value or an RSSI value; as known to those skilled in the art, the RSSI value is a parameter that measures the distance between a signal point and a receiving point according to the strength of a received signal, so the RSSI value can also be used to indicate the distance between a wireless terminal device and a wireless bridging device. It should be noted that, the second correspondence relationship under each distance indication information may be obtained by testing a corresponding wireless product in advance, and then stored in the execution device of the present invention; the execution device of the present invention may calculate the corresponding second correspondence relationship under each distance indication information through a certain calculation model.

S3, obtaining a position point set corresponding to each distance indication information from all wireless terminal equipment position points in the plane simulation space according to the first corresponding relation and the second corresponding relation corresponding to each distance indication information; when the wireless terminal equipment is located at any wireless terminal equipment position point in the position point set, a fourth performance value obtained by the wireless terminal equipment through the wireless bridging equipment is larger than a third performance value obtained by the wireless terminal equipment through the wireless access equipment;

It should be noted that, when the first correspondence is obtained, the wireless access device used in the test itself has the same attribute as the wireless bridging network where the wireless access device is actually located, for example, the wireless access device of the same model, and the third performance value may be directly obtained correspondingly on the first correspondence, for example, when the wireless terminal device is at a certain wireless terminal device location point, a third received signal strength indication between the wireless terminal device and the wireless access device is obtained, and the corresponding first performance value is searched in the first correspondence according to the third received signal strength indication, where the first performance value may be used as the third performance value.

When the first corresponding relation is obtained, the attribute of the wireless access equipment adopted by the test is different from that of the wireless access equipment actually used, a simplified calculation model can be obtained by performing certain fitting on the first corresponding relation, and a third performance value can be obtained by the simplified calculation model.

Similarly, the fourth performance value may be obtained directly according to the second correspondence, or may be obtained by performing certain fitting according to the second correspondence to obtain a simplified calculation model, and obtaining the fourth performance value through the simplified calculation model.

S4, calculating an expansion area formed by the position point set corresponding to each distance indication information;

s5, according to the expansion area corresponding to each distance indication information, estimating the expansion performance of the wireless bridging network under each distance indication information.

It should be noted that, the first correspondence relationship and each second correspondence relationship may be a correspondence curve, a correspondence table, a correspondence function, or the like. When the first corresponding relation is a corresponding curve, the first corresponding relation can be a wireless attenuation performance curve of a corresponding product, and most wireless devices on the market can pre-measure the wireless attenuation performance curve of the product. Taking the first correspondence relationship and the second correspondence relationship as correspondence curves, the wireless bridging device is an RE device as an example, and the implementation process of the embodiment (hereinafter, the "wireless access device" is simply referred to as "wireless AP"):

acquiring a first received signal strength indication, RSSI, of a wireless terminal device relative to a wireless AP ₁ By radio with radio terminal equipmentThe first correspondence of the first performance value obtained by the AP is shown in fig. 4, where throughput is taken as an example in fig. 4, and the abscissa in fig. 4 is the first received signal strength indication RSSI ₁ The ordinate is the first performance value Thr ₁ The method comprises the steps of carrying out a first treatment on the surface of the The first performance value refers to wireless performance obtained by the wireless terminal device directly connecting to the wireless AP.

The distances between the wireless bridging device and the wireless access device are different, and the wireless performance obtained by the wireless bridging device from the wireless access device is different, so that even if the distance between the wireless terminal device and the RE device is unchanged, the wireless performance obtained by the wireless terminal device from the wireless bridging device is affected by the distance between the wireless bridging device and the wireless access device. The invention acquires the second received signal strength indication RSSI of the wireless terminal equipment relative to the RE equipment under each distance indication information ₂ Second performance value Thr obtained with wireless terminal equipment through RE equipment ₂ A second correspondence of (2); and traversing all the distance indication information between the RE equipment and the wireless AP to obtain a second corresponding relation corresponding to each distance indication information. As shown in fig. 5, one of the second correspondences is shown in fig. 5, and the abscissa in fig. 5 shows the second received signal strength indication RSSI ₂ The ordinate is the second performance value Thr ₂ 。

Obtaining a position point set corresponding to each distance indication information from all the position points of the wireless terminal equipment in the plane simulation space of the wireless bridging network according to the first corresponding relation and the second corresponding relation corresponding to each distance indication information; when the wireless terminal device is located at any wireless terminal device position point in the position point set, the fourth performance value obtained by the wireless terminal device through the wireless bridging device is larger than the third performance value obtained by the wireless terminal device through the wireless access device.

Further, a set of location points under each distance indication information is obtained. Specifically, the wireless terminal device may be at any position in the planar analog space, i.e., any wireless terminal device position point, for example, as shown in fig. 6, assuming that the distance indication information is D in the distance between the wireless AP and the RE device in fig. 6, when the wireless terminal device is at the wireless terminal device position point a in the planar analog space, the wireless terminal device may be directly connected to the wireless AP to obtain a third performance value according to the first corresponding relationship, and obtain the wireless terminal device to be directly connected to the RE device to obtain a fourth performance value according to the second corresponding relationship corresponding to the distance indication information D, if the fourth performance value obtained by the wireless terminal device at the point a is greater than the third performance value, which indicates that the wireless terminal device may obtain better wireless performance at the point a by the RE device, the point a is one of the set of position points. When the wireless terminal device is located at other wireless terminal position points in the planar simulation space in fig. 6, the third performance value and the fourth performance value are obtained through the above process, so that after all the wireless terminal device position points are traversed, a position point set including a plurality of wireless terminal device position points is obtained, and the position point set is a position point set corresponding to the distance indication information D. As shown in fig. 7, the gray shaded area in fig. 7 is an area constituted by a set of position points corresponding to the distance indication information D. And traversing each distance indication information to obtain a position point set corresponding to each distance indication information.

It is envisioned that the set of location points under one distance indication information represents all wireless terminal device location points for which wireless performance is better from the RE device than from the wireless AP directly when the RE device is determined from the wireless AP distance.

Further, calculating an expansion area formed by the position point set corresponding to each distance indication information;

the extended area formed by a set of location points represents the network performance area that the RE device has developed when determining the distance between the RE device and the wireless AP. In this way, the extended area formed by the position point set corresponding to each distance indication information is obtained, the extended area formed by the position point set corresponding to each distance indication information is shown in fig. 8, and different network performance areas developed by the RE device and the wireless AP under different distances are obtained.

Further, according to the expansion area corresponding to each distance indication information, the expansion performance of the wireless bridging network under each distance indication information is evaluated. Specifically, the expansion area can be used as a specific evaluation score to evaluate the expansion performance of the wireless bridging network, or the expansion performance of the wireless bridging network under each distance indication information can be correspondingly evaluated according to a certain area level. For example, for all extended areas with extended areas less than Q1, the extended performance of the corresponding wireless bridging network is evaluated as "poor"; for all the expansion areas with the expansion area greater than or equal to Q1 and less than Q2, the expansion performance of the corresponding wireless bridging network is evaluated as "medium", and for all the expansion areas with the expansion area greater than or equal to Q2, the expansion performance of the corresponding wireless bridging network is evaluated as "excellent".

Meanwhile, based on the expansion performance under each distance indication information estimated by the invention, the following feature values can be obtained, and the following description will be given by taking the distance indication information as an RSSI finger as an example:

1. according to the expansion area corresponding to each distance indication information, the optimal expansion performance is evaluated, and further the distance indication information corresponding to the optimal expansion performance can be obtained, so that the distance indication information is used as a threshold (when the distance indication information is an RSSI value, the obtained threshold is the RSSI threshold) to judge whether the distance between the RE equipment and the wireless AP is reasonable or not, and whether the placement positions of the RE equipment and the wireless AP are reasonable or not is judged. Namely: when the RE equipment and the wireless AP are in an RSSI threshold value, the wireless bridging network obtains the optimal expansion performance and has the optimal coverage performance;

2. the critical RSSI values for the severe rollback of the extended performance of the wireless bridged network are obtained, for example, all extended areas are obtained with reference to fig. 8, and a lower pre-warning threshold (e.g., -87 dB) and an upper pre-warning threshold (e.g., -71 dB) are obtained. If the RSSI value between the RE equipment and the wireless AP is detected to be smaller than the lower limit early warning threshold value or larger than the upper limit early warning threshold value, the coverage performance of the wireless bridging network is serious in step back or poor in coverage performance;

3. By setting different grades of the expansion area, the RSSI value range corresponding to the expansion area of different grades can be obtained.

It should be noted that, based on the respective feature values obtained by the expansion performance under each distance indication information evaluated by the present invention, the feature values may be directly adapted to corresponding wireless products, for example, the same-series RE devices, without each RE device executing the method provided by the present invention.

According to the method for evaluating the expansion performance of the wireless bridging network, each distance indication information between the wireless bridging device and the wireless access device can be traversed through the plane simulation space, the position point of each wireless terminal device is traversed through the plane simulation space, the expansion area of the wireless bridging network under each distance indication information is obtained through the first corresponding relation and the second corresponding relation, and then the expansion performance of the wireless bridging network under each distance indication information can be evaluated. Because all distances between the wireless bridging device and the wireless access device in the global range can be traversed in the plane simulation space, the position point of each wireless terminal device can be traversed, and the expansion area is obtained by combining the first corresponding relation and the second corresponding relation, the invention can obtain the expansion performance of the wireless bridging network corresponding to all distances between the wireless bridging device and the wireless access device in the global range without being limited by actual test times, and is beneficial to accurately judging whether the distance between the wireless bridging device and the wireless access device is reasonable.

It should be noted that, the plane simulation space of the present invention is only used for traversing all distances between the wireless bridge device and the wireless access device and all wireless terminal device location points, each distance indication information and each corresponding performance value under the wireless terminal device location point are obtained according to the first corresponding relationship and the second corresponding relationship, that is, the plane simulation space does not affect each distance indication information and each corresponding performance value under the wireless terminal device location point, and the use of the plane simulation space does not affect the accuracy of the extended area of the present invention.

Preferably, referring to fig. 9, fig. 9 is a flow chart of a preferred embodiment of step S3 in fig. 3; specifically, the method obtains a set of location points corresponding to any one of the distance indication information through the following steps:

s31, acquiring a third received signal strength indication of the wireless terminal equipment relative to the wireless access equipment under the condition that the wireless terminal equipment is located at each wireless terminal equipment position point; determining that the wireless terminal equipment is positioned under each wireless terminal equipment position point according to the first corresponding relation and the third received signal strength indication, and obtaining a third performance value through the wireless access equipment;

S32, acquiring a fourth received signal strength indication of the wireless terminal equipment relative to the wireless bridging equipment under the condition that the wireless terminal equipment is positioned at each wireless terminal equipment position point; determining that the wireless terminal equipment is positioned under each wireless terminal equipment position point according to the second corresponding relation corresponding to the distance indication information and the fourth received signal strength indication, and obtaining a fourth performance value through the wireless bridging equipment;

s33, judging whether the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment under each wireless terminal equipment position point; when the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment, the wireless terminal position point where the wireless terminal equipment is positioned is listed as a gathering point;

s34, acquiring the position point set according to all the set points.

Specifically, taking the example of obtaining the set of location points under the distance indication information D, the implementation procedure of this embodiment is described:

as shown in fig. 10, when the wireless terminal device is located at the wireless terminal device location point B, and the wireless terminal device is directly connected to the wireless AP at this location to obtain wireless performance, a third received signal strength indication RSSI between the wireless terminal device and the wireless AP is obtained ₃ Third performance value Thr obtained from wireless AP ₃ . Similarly, when the wireless terminal device is located at the position point of other wireless terminal devices, the position point of the wireless terminal device is correspondingly obtainedLower RSSI ₃ And Thr ₃ 。

As shown in fig. 10, the distance between the RE device and the wireless AP reaches the distance indication information D, and the wireless terminal device connects with the RE device to obtain wireless performance. When the wireless terminal equipment is positioned at the wireless terminal equipment position point B, a fourth received signal strength indication RSSI between the wireless terminal equipment and the RE equipment is obtained ₄ A fourth performance value Thr obtained from the RE device ₄ . Similarly, when the wireless terminal device is located at the position point of other wireless terminal devices, the RSSI of the position point of the wireless terminal device is correspondingly obtained ₄ And Thr ₄ 。

Similarly, through the above procedure, the wireless terminal device is located at the wireless terminal device location point C, the wireless terminal device location point E, and the corresponding third performance value and fourth performance value at each of the other wireless terminal device location points in fig. 10 are obtained.

And judging whether the fourth performance value obtained when the wireless terminal equipment is positioned at the wireless terminal equipment position point B is larger than the obtained third performance value, for example, the third performance value obtained when the wireless terminal equipment is positioned at the wireless terminal equipment position point B is 190Mbps, the fourth performance value obtained when the wireless terminal equipment is positioned at the wireless terminal equipment position point B is 200Mbps, and judging that the fourth performance value 200Mbps is larger than the third performance value 190Mbps, and then, the wireless terminal equipment position point B is classified as a collecting point.

For the wireless terminal device located at the wireless terminal device location point C, it is determined whether the fourth performance value obtained when the wireless terminal device is located at the wireless terminal device location point C is greater than the obtained third performance value, for example, the third performance value obtained when the wireless terminal device is located at the wireless terminal device location point C is 210Mbps, the fourth performance value obtained when the wireless terminal device is located at the wireless terminal device location point B is 280Mbps, and if it is determined that the fourth performance value 280Mbps is greater than the third performance value 210Mbps, the wireless terminal device location point C is also classified as a collection point.

And judging whether the fourth performance value obtained when the wireless terminal equipment is positioned at the wireless terminal equipment position point E is larger than the obtained third performance value or not when the wireless terminal equipment is positioned at the wireless terminal equipment position point E, for example, the third performance value obtained when the wireless terminal equipment is positioned at the wireless terminal equipment position point E is 240Mbps, the fourth performance value obtained when the wireless terminal equipment is positioned at the wireless terminal equipment position point B is 200Mbps, and judging that the fourth performance value 200Mbps is not larger than the third performance value 240Mbps, and not listing the wireless terminal equipment position point E as a gathering point, wherein the position point set corresponding to the distance indication information D does not contain the wireless terminal equipment position point E.

And similarly, judging the size relation between the third performance value and the fourth performance value obtained by the position points of the wireless terminal equipment positioned in other wireless terminal equipment, and determining whether the position points of each wireless terminal equipment are classified as gathering points. After traversing all wireless terminal device location points, a plurality of aggregation points are obtained, and the plurality of aggregation points form a location point set. The set of location points is a set of location points corresponding to the distance indication information D, and the hatched area in fig. 7 is an area formed by the set of location points corresponding to the distance indication information D.

Similarly, the position point set corresponding to each distance indication information is obtained through the process.

Preferably, N performance difference levels are preset, and the position point set is composed of N position point subsets, where the N position point subsets are in one-to-one correspondence with the N performance difference levels; n >1;

In this embodiment, specifically, assuming n=3, the performance difference class is divided into:

(1) First performance difference rating: the performance difference is greater than 0; corresponds to a first subset of location points.

(2) Second performance difference rating: the difference in performance is greater than 20; corresponds to a second subset of location points.

(3) Third performance difference rating: the difference in performance is greater than 50; corresponds to a third subset of location points.

The above wireless terminal device location points B and C are described as an example:

taking the point B as an example, after the fourth performance value 200Mbps obtained when the wireless terminal device is determined to be located at the point B of the wireless terminal device is greater than the third performance value 190Mbps, the performance difference between the fourth performance value 200Mbps obtained by the wireless terminal device and the third performance value 190Mbps is calculated to be 10Mbps. And determining that the performance difference value is 10Mbps from the first performance difference level to the third performance difference level and belongs to the first performance difference level, wherein the first performance difference level is the target performance difference level. Further, it is determined that a target position point subset corresponding to the position point B of the wireless terminal device is a first position point subset. The wireless terminal device location point B is a rendezvous point of the first subset of location points.

Taking point C as an example, after the fourth performance value 280Mbps obtained when the wireless terminal device is determined to be located at the wireless terminal device location point C is greater than the third performance value 210Mbps, the performance difference between the fourth performance value 280Mbps obtained by the wireless terminal device and the third performance value 210Mbps is calculated to be 70Mbps. And determining that the performance difference value is 70Mbps from the first performance difference level to the third performance difference level and belongs to the second performance difference level and the third performance difference level, wherein the second performance difference level and the third performance difference level are both target performance difference levels. Further, it is determined that the target position point subset corresponding to the position point C of the wireless terminal device is a second position point subset and a third position point subset. The wireless terminal device location point C is a rendezvous point of the second subset of location points and is also a rendezvous point of the third subset of location points.

And determining a target position point subset which belongs to the position points in the position points of the wireless terminal equipment with the fourth performance value larger than the third performance value through the process, so as to obtain all the gathering points corresponding to each position point subset. And obtaining each position point subset according to all the gathering points corresponding to the position point subset. As shown in fig. 11, fig. 11 illustrates an area formed by a first to third subset of location points under certain distance instruction information.

In this embodiment, the subset of the different location points is obtained through hierarchical calculation, which is favorable for more finely dividing the expansion area under each distance indication information, and more accurate evaluation of expansion performance of the wireless bridging network.

Preferably, the calculating the extended area formed by the location point set corresponding to each distance indication information specifically includes:

In this embodiment, an extended area corresponding to each performance difference level under each distance indication information can be obtained, so as to further improve accuracy of evaluating extended performance of the wireless bridging network. For example, the extended area corresponding to each performance difference level under each distance indication information is shown in fig. 12, and the abscissa in fig. 12 is the distance indication information, and the distance indication information is indicated as the RSSI value between the wireless AP and the RE device. In fig. 12, the first extended area corresponds to the first subset of location points, the second extended area corresponds to the second subset of location points, and the third extended area corresponds to the third subset of location points.

According to the evaluation shown in fig. 12, the expansion performance of the wireless bridging network under the condition that the RSSI value between the RE device and the wireless AP is-82 dB is optimal, the expansion performance of the wireless bridging network under the condition that the RSSI value between the RE device and the wireless AP is-87 dB is obviously weakened, and the expansion performance of the wireless bridging network under the condition that the RSSI value between the RE device and the wireless AP is-71 dB is obviously poor. Of course, the expansion performance of the wireless bridging network of the RSSI value between the RE device and the wireless AP under other values can also be evaluated.

As can be seen from comparing fig. 8 and fig. 12, after classifying the performance difference between the fourth performance value and the third performance value, it is advantageous to determine a more accurate optimal expansion performance, and to determine a more accurate RSSI threshold.

Preferably, the third received signal strength indication of the wireless terminal device relative to the wireless access device is obtained when the wireless terminal device is located at each wireless terminal device location point; and determining, according to the first correspondence and the third received signal strength indication, that the wireless terminal device is located at each wireless terminal device location point, a third performance value obtained by the wireless access device, including:

In this embodiment, a policy for calculating the third performance value is provided to obtain the third performance value through the simplified calculation model, so that the present invention is more practical, for example, even if the attribute of the wireless access device adopted by the test is different from that of the wireless access device actually used when the test generates the first correspondence, the third performance value can be calculated through the policy of this embodiment.

Specifically, the wireless terminal device is located under each wireless terminal device location point, for example, located at a wireless terminal device location point B, a first distance between the wireless terminal device location point B and the wireless AP is calculated, and the first distance is substituted into the first fitting function, so as to obtain an RSSI value of the wireless terminal device when the wireless terminal device is connected to the wireless AP at the point B. And substituting the RSSI value into a first calculation formula to obtain a third performance value which can be obtained from the wireless AP by the wireless terminal equipment at the point B. The same applies to the third performance value of the wireless terminal device located at the location point of the other wireless terminal device.

Preferably, the first fitting function is:

RSSI ₃ ＝A ₁ +B ₁ ×(log D ₁ +log M ₁ )；

the first calculation formula is:

It should be noted that the first fitting parameter A ₁ And a second fitting parameter B ₁ Either characterizing one parameter or characterizing a combination of parameters. In the first fitting function, a first distance D ₁ In "meters", the operating frequency M of the radio access device ₁ In units of "megahertz".

It should be noted that the inventors of the present invention found the first fitting parameter a after carrying out inventive work ₁ And a second fitting parameter B ₁ The value of the method has no great influence on the evaluation of the expansion performance of the wireless bridging network, and the evaluation of the expansion performance needs different expansion area comparison and determination. I.e. first fitting parameter A ₁ And a second fitting parameter B ₁ The specific expansion area may be different, but the expansion performance of one expansion area relative to the other expansion area is not substantially affected. For example, A ₁ Can take the value of-30, B ₁ Can take the value of-26, M ₁ The available value is 2.4GHZ.

The RSSI is that _a For the maximum first received signal strength indication corresponding to the first corresponding relation when the first performance value is 0, which is calibrated in advance, RSSI _b The first corresponding relation calibrated in advance is in the first performanceThe value is the minimum first received signal strength indication corresponding to the peak value. As shown in fig. 4, the RSSI is calibrated _a Calibrating RSSI to-90 dB _b Is 62.5dB, i.e., the RSSI values at the 2 inflection points of the first correspondence, corresponding,

the value is 8 and->

The value is 720.

It should be noted that if the first correspondence is obtained by using a wireless product test of 300Mbps, thr is generally _1-max 220Mbps, as shown in fig. 4.

Both the first fitting function and the first calculation formula may be obtained according to a specific first correspondence, e.g., for a first correspondence as shown in FIG. 4, A ₁ Can take the value of-30, B ₁ Can take the value of-26, M ₁ The RSSI can take the value of 2.4GHZ _a The value is-90 dB, RSSI _b At a level of 62.5dB,

the value is 8 and->

The value is 720, thr _1-max 220Mbps. Then a first fitting function is obtained as follows:

RSSI ₃ ＝-30+[-26×(log D ₁ +log 2400)]

the following first calculation formula can be obtained:

Thr ₃ ＝max[0,min(220,8×RSSI ₃ +720)]。

preferably, the fourth received signal strength indication of the wireless terminal device relative to the wireless bridging device is obtained when the wireless terminal device is located at each wireless terminal device location point; and determining that the wireless terminal device is located under each wireless terminal device location point according to the second corresponding relation corresponding to the distance indication information and the fourth received signal strength indication, where the fourth performance value is obtained through the wireless bridging device specifically includes:

The principle of obtaining the fourth performance value in this embodiment is similar to the principle, effect and process of obtaining the third performance value described above, so that the description thereof will not be repeated here.

Preferably, the second fitting function is:

RSSI ₄ ＝A ₂ +B ₂ ×(log D ₂ +log M ₂ )；

the second calculation formula is:

The RSSI is that _c For the maximum second received signal strength indication corresponding to the second corresponding relation when the second performance value is 0, which is calibrated in advance, RSSI _d And the second corresponding relationship is a minimum second received signal strength indication corresponding to the second performance value which is calibrated in advance when the second performance value is a peak value.

The parameters of the second fitting function provided in this embodiment are similar to the units and meanings of the parameters of the first fitting function, and the parameters of the second calculation formula provided in this embodiment are similar to the units and meanings of the parameters of the second calculation formula, so that the description thereof will not be repeated here.

Preferably, the method further comprises:

It should be noted that, since the wireless attenuation performance curve (i.e. the correspondence between the RSSI value and the wireless performance) of the wireless product is generally limited by the connected wireless terminal device, not the wireless access device. In this embodiment, the wireless bridging device is directly connected to the wireless AP without bridging the wireless AP, and when the wireless bridging device serves as the wireless access device and directly connects to the wireless terminal device, a fifth corresponding relationship is obtained, and the first corresponding relationship is replaced by the fifth corresponding relationship. The difference between the products of the wireless bridging device and the wireless access device is small, so that the simplification processing is performed, and the difference between the products of the wireless bridging device and the wireless access device is ignored.

Preferably, the distance indication information is a received signal strength indication, and the first performance value, the second performance value, the third performance value, and the fourth performance value are throughput.

The invention provides an evaluation method of expansion performance of a wireless bridging network, which comprises the steps of acquiring a first corresponding relation between a first received signal strength indication of wireless terminal equipment relative to wireless access equipment and a first performance value obtained by the wireless terminal equipment through the wireless access equipment when the evaluation method is implemented; acquiring a second corresponding relation between a second received signal strength indication of the wireless terminal equipment relative to the wireless bridging equipment and a second performance value obtained by the wireless terminal equipment through the wireless bridging equipment under each piece of distance indication information; the distance indication information is used for indicating the distance between the wireless bridging device and the wireless access device in the plane simulation space; obtaining a position point set corresponding to each distance indication information from all the position points of the wireless terminal equipment in the plane simulation space according to the first corresponding relation and the second corresponding relation corresponding to each distance indication information; when the wireless terminal equipment is positioned at any wireless terminal equipment position point in the position point set, the fourth performance value obtained by the wireless terminal equipment through the wireless bridging equipment is larger than the third performance value obtained by the wireless terminal equipment through the wireless access equipment; calculating an expansion area formed by a position point set corresponding to each distance indication information; and evaluating the expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each distance indication information.

Example two

The embodiment of the invention also provides an evaluation device for the expansion performance of the wireless bridging network, please refer to fig. 13, fig. 13 is a schematic structural diagram of a preferred embodiment of the evaluation device for the expansion performance of the wireless bridging network; specifically, the device comprises:

A first correspondence acquiring module 11, configured to acquire a first correspondence between a first received signal strength indication of a wireless terminal device relative to a wireless access device and a first performance value acquired by the wireless terminal device through the wireless access device;

a second correspondence acquiring module 12, configured to acquire, under each distance indication information, a second correspondence between a second received signal strength indication of the wireless terminal device relative to a wireless bridge device and a second performance value obtained by the wireless terminal device through the wireless bridge device; the distance indication information is used for indicating the distance between the wireless bridging equipment and the wireless access equipment in a plane simulation space;

a location point set obtaining module 13, configured to obtain, according to the first correspondence and the second correspondence corresponding to each distance indication information, a location point set corresponding to each distance indication information from all location points of wireless terminal devices in the planar simulation space; when the wireless terminal equipment is located at any wireless terminal equipment position point in the position point set, a fourth performance value obtained by the wireless terminal equipment through the wireless bridging equipment is larger than a third performance value obtained by the wireless terminal equipment through the wireless access equipment;

An extended area calculation module 14, configured to calculate an extended area formed by the set of location points corresponding to each of the distance indication information;

and the expansion performance evaluation module 15 is configured to evaluate expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each distance indication information.

Preferably, the location point set obtaining module 13 includes a first determining unit, a second determining unit, a judging unit, and an obtaining unit, where, when the location point set obtaining module 13 is configured to obtain any one location point set corresponding to the distance indication information,

the first determining unit is configured to obtain a third received signal strength indication of the wireless terminal device with respect to the wireless access device when the wireless terminal device is located at each wireless terminal device location point; determining that the wireless terminal equipment is positioned under each wireless terminal equipment position point according to the first corresponding relation and the third received signal strength indication, and obtaining a third performance value through the wireless access equipment;

the second determining unit is configured to obtain a fourth received signal strength indication of the wireless terminal device with respect to the wireless bridging device when the wireless terminal device is located at each wireless terminal device location point; determining that the wireless terminal equipment is positioned under each wireless terminal equipment position point according to the second corresponding relation corresponding to the distance indication information and the fourth received signal strength indication, and obtaining a fourth performance value through the wireless bridging equipment;

The judging unit is used for judging whether the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment under each wireless terminal equipment position point; when the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment, the wireless terminal position point where the wireless terminal equipment is positioned is listed as a gathering point;

the obtaining unit is configured to obtain the location point set according to all the aggregation points.

when the judging unit is configured to, when determining that the fourth performance value obtained by the wireless terminal device is greater than the obtained third performance value, list the wireless terminal location point where the wireless terminal device is located as a rendezvous point, the judging unit is specifically configured to:

then, when the obtaining unit is specifically configured to:

Preferably, the extended area calculation module 14 is specifically configured to:

the extended performance evaluation module 15 is specifically configured to:

Preferably, the first determining unit specifically includes:

A first distance detection subunit, configured to detect a first distance between the wireless terminal device and the wireless access device when the wireless terminal device is located at each wireless terminal device location point;

a third received signal strength indication calculating subunit, configured to calculate and obtain the third received signal strength indication according to the first distance and a preset first fitting function;

a third performance value calculating subunit, configured to calculate, according to the third received signal strength indication and a preset first calculation formula, to obtain the third performance value; the first calculation formula is constructed according to the first corresponding relation.

Preferably, the first fitting function is:

RSSI ₃ ＝A ₁ +B ₁ ×(log D ₁ +log M ₁ )；

the first calculation formula is:

Preferably, the second determining unit specifically includes:

a second distance detection subunit, configured to detect a second distance between the wireless terminal device and the wireless bridging device when the wireless terminal device is located at each wireless terminal device location point;

a fourth received signal strength indication calculating subunit, configured to calculate and obtain the fourth received signal strength indication according to the second distance and a preset second fitting function;

a fourth performance value calculating subunit, configured to calculate, according to the fourth received signal strength indication and a preset second calculation formula, to obtain the fourth performance value; the second calculation formula is constructed according to the second corresponding relation.

Preferably, the second fitting function is:

RSSI ₄ ＝A ₂ +B ₂ ×(log D ₂ +log M ₂ )；

wherein RSSI ₄ For the fourth received signal strength indication; a is that ₂ Is preset toIs a third fitting parameter of (2); b (B) ₂ The fourth fitting parameter is preset; d (D) ₂ Is the second distance; m is M ₂ Operating frequency for the wireless bridging device;

the second calculation formula is:

Preferably, the device further includes a fifth correspondence acquiring module, where the fifth correspondence acquiring module is specifically configured to:

the first correspondence acquiring module 11 is specifically configured to:

According to the evaluation device for the expansion performance of the wireless network, provided by the invention, each distance indication information between the wireless bridging device and the wireless access device can be traversed through the plane simulation space, the position point of each wireless terminal device is traversed through the plane simulation space, the expansion area of the wireless bridging network under each distance indication information is obtained through the first corresponding relation and the second corresponding relation, and then the expansion performance of the wireless bridging network under each distance indication information can be evaluated. Because all distances between the wireless bridging device and the wireless access device in the global range can be traversed in the plane simulation space, the position point of each wireless terminal device can be traversed, and the expansion area is obtained by combining the first corresponding relation and the second corresponding relation, the invention can obtain the expansion performance of the wireless bridging network corresponding to all distances between the wireless bridging device and the wireless access device in the global range without being limited by actual test times, and is beneficial to accurately judging whether the distance between the wireless bridging device and the wireless access device is reasonable.

It should be noted that, the device for evaluating the expansion performance of the wireless network provided by the embodiment of the present invention is configured to execute the steps of the method for evaluating the expansion performance of the wireless network described in any one of the foregoing embodiments, where the working principles and the beneficial effects of the two correspond to each other one by one, so that a detailed description is omitted.

It will be appreciated by those skilled in the art that the schematic diagram of the apparatus for evaluating the extended performance of the wireless network is merely an example of the apparatus for evaluating the extended performance of the wireless network, and does not constitute a limitation of the apparatus for evaluating the extended performance of the wireless network, and may include more or less components than those illustrated, or may combine some components, or different components, for example, the apparatus for evaluating the extended performance of the wireless network may further include an input-output device, a network access device, a bus, and the like.

Example III

The third embodiment of the present invention further provides a wireless device, please refer to fig. 14, fig. 14 is a schematic structural diagram of a preferred embodiment of a wireless device provided by the present invention; the wireless device comprises a processor 10, a memory 20 and a computer program stored in the memory 20 and configured to be executed by the processor 10, the processor implementing the method for evaluating the extended performance of a wireless network according to any one of the embodiments provided above when executing the computer program.

In particular, the processor and the memory in the wireless device may be one or more, and the wireless device may be any device that may be used to extend network coverage, such as a router, an RE device, or a wireless AP.

The wireless device of the present embodiment includes: a processor, a memory, and a computer program (e.g., computer program 1, computer program 2, … … in fig. 14) stored in the memory and executable on the processor. The processor executes the computer program to implement the steps in the method for evaluating the expansion performance of the wireless network provided in any one of the above embodiments, for example, step S4 shown in fig. 3, calculating an expansion area formed by the location point set corresponding to each distance indication information; alternatively, the processor may implement the functions of the modules in the above embodiments of the apparatus when executing the computer program, for example, implement the extended area calculating module 14, configured to calculate the extended area formed by the location point set corresponding to each distance indication information.

The computer program may be divided into one or more modules/units, which are stored in the memory and executed by the processor to accomplish the present invention, for example. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program in the wireless device. For example, the computer program may be divided into a first correspondence acquiring module 11, a second correspondence acquiring module 12, a position point set acquiring module 13, an extended area calculating module 14, and an extended performance evaluating module 15, each of which specifically functions as follows:

The processor may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is a control center for the wireless device and that uses various interfaces and lines to connect the various parts of the overall wireless device.

The memory may be used to store the computer program and/or modules, and the processor may implement various functions of the wireless device by running or executing the computer program and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid-state storage device.

Wherein the wireless device integrated module/unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the present invention may implement all or part of the procedure in the method for evaluating the extended performance of the wireless network according to any one of the above embodiments, or may be implemented by instructing the relevant hardware through a computer program, where the computer program may be stored in a computer readable storage medium, and the computer program may implement the steps of the method for evaluating the extended performance of the wireless network according to any one of the above embodiments when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.

Claims

1. A method for evaluating extended performance of a wireless bridging network, the method comprising:

according to the expansion area corresponding to each distance indication information, estimating the expansion performance of the wireless bridging network under each distance indication information;

the method comprises the following steps of obtaining a position point set corresponding to any one distance indication information:

Judging whether the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment at each wireless terminal equipment position point; when the fourth performance value obtained by the wireless terminal equipment is larger than the third performance value obtained by the wireless terminal equipment, the position point of the wireless terminal equipment where the wireless terminal equipment is positioned is listed as a gathering point;

and obtaining the position point set according to all the gathering points.

2. The method for evaluating the expansion performance of a wireless bridging network according to claim 1, wherein N performance difference levels are preset, and the position point set is composed of N position point subsets, and N position point subsets are in one-to-one correspondence with N performance difference levels; n >1;

3. The method for evaluating the expansion performance of a wireless bridging network according to claim 2, wherein the calculating the expansion area formed by the location point set corresponding to each distance indication information specifically includes:

4. The method for evaluating extended performance of a wireless bridging network according to claim 1, wherein the third received signal strength indication of the wireless terminal device with respect to the wireless access device is obtained when the wireless terminal device is located at each of the wireless terminal device location points; and determining, according to the first correspondence and the third received signal strength indication, that the wireless terminal device is located at each wireless terminal device location point, a third performance value obtained by the wireless access device, including:

5. The method for evaluating the extended performance of a wireless bridging network of claim 4, wherein the first fitting function is:

RSSI ₃ ＝A ₁ +B ₁ ×(logD ₁ +logM ₁ )；

the first calculation formula is:

6. The method for evaluating extended performance of a wireless bridging network according to claim 1, wherein the fourth received signal strength indication of the wireless terminal device with respect to the wireless bridging device is obtained when the wireless terminal device is located at each of the wireless terminal device location points; and determining that the wireless terminal device is located under each wireless terminal device location point according to the second corresponding relation corresponding to the distance indication information and the fourth received signal strength indication, where the fourth performance value is obtained through the wireless bridging device specifically includes:

7. The method for evaluating the extended performance of a wireless bridging network of claim 6, wherein the second fitting function is:

RSSI ₄ ＝A ₂ +B ₂ ×(logD ₂ +logM ₂ )；

the second calculation formula is:

in the second correspondence, the second received signal strength indicates RSSI _c The corresponding second performance value; / >

8. The method for evaluating the expansion performance of a wireless bridging network according to any one of claims 1 to 7, characterized in that the method further comprises:

9. The method of evaluating extended performance of a wireless bridging network of claim 1, wherein the distance indication information is a received signal strength indication, and the first performance value, the second performance value, the third performance value, and the fourth performance value are throughput.

10. An apparatus for evaluating extended performance of a wireless bridging network, the apparatus comprising:

the expansion performance evaluation module is used for evaluating the expansion performance of the wireless bridging network under each distance indication information according to the expansion area corresponding to each distance indication information;

the location point set obtaining module is further configured to obtain a location point set corresponding to any one of the distance indication information through the following steps:

and obtaining the position point set according to all the gathering points.

11. A wireless device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing a method of evaluating the extended performance of a wireless bridging network according to any one of claims 1 to 9 when the computer program is executed.