WO2014015676A1

WO2014015676A1 - Wireless access point access method, wireless access point and terminal

Info

Publication number: WO2014015676A1
Application number: PCT/CN2013/072692
Authority: WO
Inventors: 纪谦超
Original assignee: 华为技术有限公司
Priority date: 2012-07-25
Filing date: 2013-03-15
Publication date: 2014-01-30
Also published as: CN102802232A; CN102802232B

Abstract

Provided is a wireless access point (AP) access method, comprising: receiving a detection request frame transmitted by a terminal; determining whether the AP load is greater than a preset threshold; when the AP load is greater than the preset threshold and the detection request frame satisfies a preset condition, calculating a transmission parameter; and transmitting a detection response frame to the terminal according to the transmission parameter, such that the terminal can access a wireless AP with a light load according to the transmission parameter. The method can actively inform a terminal of the current load situation, enable the terminal to access an AP with a light load according to the transmission parameters of different APs, and avoid the problem that the terminal transmits a detection request frame to an AP with a heavy load multiple times and is rejected multiple times, thus achieving load balance between APs, and avoiding the problem that a user cannot access a network for a long time.

Description

Wireless access point access method and wireless access point and terminal

This application is required to be submitted to the China Patent Office on July 25, 2012, and the application number is 201210259522. 4. The priority of the Chinese patent application titled "A Wireless Access Point Access Method and Wireless Access Point, Terminal" The entire contents of which are incorporated herein by reference. The present invention relates to the field of communications, and in particular, to a wireless access point access method, a wireless access point, and a terminal. BACKGROUND OF THE INVENTION A wireless access point (English: Access Point, abbreviation: AP) is a wireless switch used for a wireless network. The carrying capacity of an AP is limited. When there are many wireless access terminals in a certain area, two areas are usually set in this area. Or two or more APs with the same service set identifier (English: Service Set Identifier, abbreviation: SSID). In this case, the load imbalance of two or more APs configured with the same SSID usually occurs. The existing wireless access point access method solves this problem by: After the threshold is set, the AP rejects the access of the terminal when receiving the probe request frame sent by the terminal.

After the terminal is rejected, the probe request frame may be sent to the heavily loaded AP again, requiring access to the wireless network, and the heavily loaded AP will refuse to access again. This is repeated, and it is easy for the user to be unable to access the Internet for a long time. Experience. If the number of rejected users is greater than the set number of times, the heavily loaded AP will still allow the user to access, causing the load to be further aggravated. Therefore, when the existing wireless access point access method is used for accessing the wireless network, load balancing cannot be realized, and the user cannot access the network for a long time. Summary of the invention

In view of the above, the present invention provides a wireless access point access method, a wireless access point, and a terminal, and aims to solve the problem that the existing wireless access point access method cannot truly achieve load balancing and the user cannot be used for a long time. Access to the network.

A first aspect of the present invention provides a method for accessing a wireless access point, including:

Receiving a probe request frame sent by the terminal;

Determining whether the self load is greater than a preset threshold;

Transmitting a transmission parameter when the self-load amount is greater than a preset threshold and the probe request frame satisfies a preset condition; Sending a probe response frame to the terminal by using the sending parameter, so that the terminal accesses a wireless access point with a light load according to the sending parameter.

In a first implementation of the first aspect of the invention:

The preset condition may be specifically: the media access control address in the probe request frame is not included in the connected list; or an empty condition.

With reference to the foregoing first aspect, or the first implementation manner of the foregoing first aspect, in a second implementation manner of the first aspect, the sending parameter includes any one of the following: a signal sending strength of the probe response frame; a transmission delay of the probe response frame; and, a signal transmission strength and a transmission delay of the probe response frame.

With reference to the second implementation manner of the foregoing first aspect, in a third implementation manner of the foregoing aspect, the calculating the sending parameter includes:

Calculating at least one of a signal transmission strength of the probe response frame and a transmission delay of the probe response frame; wherein

Calculating the signal transmission strength of the probe response frame includes:

Determining a current load rate of the wireless access point;

Calculating a signal transmission strength of the probe response frame according to the load rate and a radio frequency minimum transmit signal strength of the wireless access point and a radio frequency maximum adjustable signal strength amplitude;

Calculating the transmission delay of the probe response frame includes:

Determining a current load rate of the wireless access point;

And calculating a signal transmission delay of the probe response frame according to the load rate and a maximum signal delay of the wireless access point.

With reference to the third implementation manner of the foregoing first aspect, in a fourth implementation manner of the foregoing aspect, in a case that the sending parameter includes a signal sending strength of the probe response frame, the load ratio is greater, The signal transmission strength is smaller; in a case where the transmission parameter includes a transmission delay of the probe response frame, the transmission rate is larger, the transmission delay is larger; and, in the sending In the case where the parameter includes the signal transmission strength and the transmission delay of the probe response frame, the larger the load rate, the smaller the signal transmission strength and the larger the transmission delay.

A second aspect of the present invention provides another method for accessing a wireless access point, including:

Transmitting a probe request frame to a plurality of wireless access points having the same service set identifier DDIS;

Receiving a probe response frame sent by the multiple wireless access points, where the probe response frame is sent by each wireless access point with the calculated transmission parameter; Obtaining a transmission parameter of each probe response frame;

According to the sending parameter, accessing a wireless access point with a light load.

In a specific implementation manner of the second aspect of the present invention:

The sending parameter optionally includes: a signal transmission strength of the probe response frame; or a transmission delay of the probe response frame; or a signal transmission strength and a transmission delay of the probe response frame.

According to the sending parameter, the wireless access point with a lighter access load optionally includes:

Comparing the signal transmission strengths of the probe response frames of different wireless access points, and accessing the wireless access points of the probe response response frames with greater signal strength; or

The transmission delay of the probe response frame of the different wireless access points is compared, and the wireless access point with the smaller transmission delay of the access probe response frame is accessed.

A third aspect of the present invention provides a wireless access point, including:

a receiving unit, configured to receive a probe request frame sent by the terminal;

a determining unit, configured to determine whether the self-loading amount is greater than a preset threshold, and the calculating unit is configured to: when the load quantity of the wireless access point is greater than a preset threshold, and the detection request frame satisfies a preset condition, And a sending unit, configured to send a probe response frame to the terminal by using the sending parameter, so that the terminal accesses a wireless access point with a light load according to the sending parameter.

In a first implementation of the third aspect of the invention:

The computing unit optionally includes:

a load rate determining subunit, configured to determine a current load rate of the wireless access point;

a calculating subunit, configured to calculate a signal sending strength of the probe response frame according to the load rate, a radio frequency minimum transmit signal strength of the wireless access point, and a radio frequency maximum adjustable information radio frequency maximum adjustable signal strength amplitude; Or calculating a signal transmission delay of the probe response frame according to the load rate and a maximum signal delay of the wireless access point; or, according to the load rate and a minimum radio frequency emission of the wireless access point a signal strength, a maximum adjustable signal strength amplitude of the radio frequency, calculating a signal transmission strength of the probe response frame, and calculating a signal of the probe response frame according to the load rate and a maximum signal delay of the wireless access point Send delay.

With reference to the first implementation manner of the foregoing third aspect, in a second implementation manner of the third aspect, in the case that the calculating subunit is configured to calculate a signal transmission strength of the probe response frame, the load The larger the rate, the smaller the signal transmission strength is. In the calculation subunit, in the case of calculating the signal transmission delay of the probe response frame, the transmission delay is larger, the transmission delay is Larger; and, in the calculation subunit, used for calculation In the case where the signal transmission strength of the sounding response frame is detected and the signal transmission delay of the sounding response frame is calculated, the larger the load rate, the smaller the signal transmission strength and the larger the transmission delay.

A fourth aspect of the present invention provides a terminal, including:

a sending unit, configured to broadcast a probe request frame to the wireless access point;

a receiving unit, configured to receive a probe response frame, where the probe response frame is determined by the wireless access point that the self load amount is greater than a preset threshold, and the probe request frame satisfies a preset condition, and the preset sending parameter is calculated. And sent with the sending parameters;

a sending parameter obtaining unit, configured to acquire a sending parameter of each probe response frame;

An access unit, configured to access a wireless access point with a light load according to the sending parameter.

In a specific implementation manner of the fourth aspect of the present invention:

The access unit optionally includes:

The comparison subunit is configured to compare the signal transmission strength of the probe response frames of different wireless access points, or compare the transmission delays of the probe response frames of different wireless access points, or compare the detection of different wireless access points. The signal transmission strength and transmission delay of the response frame;

The access sub-unit is configured to access the wireless access point with a strong signal transmission strength of the probe response frame; or access the wireless access point with a small transmission delay of the probe response frame.

A fifth aspect of the present invention provides a radio access network system, including the radio access point of the third aspect and the terminal of the fourth aspect.

The access method of the wireless access point and the wireless access point and the terminal according to the embodiment of the present invention, when the terminal attempts to access the AP, the AP actively informs the terminal by using a sending parameter related to the load condition to send a probe response frame. The current load situation, the terminal accesses the AP with a lighter load according to the sending parameters of different APs, so as to avoid the problem that the terminal sends the probe request frame to the heavily loaded AP multiple times and is rejected multiple times. Load balancing, and avoiding the problem that users can't access the Internet for a long time. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and other drawings may be obtained from those skilled in the art without departing from the drawings.

FIG. 1 is a flowchart of a method for accessing a wireless access point according to an embodiment of the present invention; 2 is a flowchart of still another method for accessing a wireless access point according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a wireless access point according to an embodiment of the present disclosure;

4 is a schematic structural diagram of still another wireless access point according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of still another terminal according to an embodiment of the present invention. The present invention discloses a wireless access point access method, which includes: a terminal sends a probe request frame to a wireless access point, and the wireless access point receives a probe request frame sent by the terminal, and determines whether the load is greater than a preset. a threshold, when the self-load is greater than a preset threshold, and the probe request frame satisfies a preset condition, calculate a transmission parameter, and send a probe response frame to the terminal by using the sending parameter, and the terminal receives and acquires each of the The transmission parameter of the response frame is detected, and according to the transmission parameter, the wireless access point with a light load is accessed.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the invention discloses a method for accessing a wireless access point, which is applied to the following scenarios: Two or more APs have the same SSID, and the terminal can connect to the wireless network through any AP, in order to connect to the AP, the terminal The probe request frame is sent in the form of a radio broadcast, and each AP can receive the probe request frame. The following is an example of any AP. As shown in FIG. 1, the method includes:

S101: The AP receives a probe request frame (Probe request) sent by the terminal;

S102: The AP determines whether the load of the AP is greater than a preset threshold.

The load of the AP itself can be determined by the number of terminals currently connected to the AP, or by the current data traffic of the AP. Regardless of the manner in which the judgment is made, the AP is considered to be in an overload state as long as the load amount is greater than a predetermined threshold.

S103: Calculate a sending parameter when the self load amount is greater than a preset threshold and the probe request frame satisfies a preset condition;

The preset condition may be specifically: media access control (English: Media Access Control, abbreviation: MAC) in the probe request frame is not included in the connected list.

Because the MAC address carried in the probe request frame is the unique identifier of the sending terminal, if the MAC address does not exist In the connected list of the AP, it is indicated that the terminal identified by the MAC address is not connected to the AP. In order to make the heavily loaded AP no longer access the new terminal, the sending parameter needs to be calculated to notify by sending the parameter. The load status of the AP described by the terminal.

If the MAC address is in the connected list of the AP, the terminal identified by the MAC address has access to the AP, and the AP does not need to be notified of the load of the AP. In this case, no unnecessary detection response is generated. Frames do not affect normal wireless network services.

In addition, the preset condition may also be an empty condition, that is, the precondition for calculating the transmission parameter is that only the load of the AP itself is greater than a preset threshold, and no other conditions exist. In the actual application, the content of the preset condition may be set according to specific requirements, which is not limited in this embodiment.

In this step, the sending parameter refers to a preset parameter of the signal when the probe response frame is sent, and may include: a signal sending strength of the probe response frame; or

The transmission delay of the probe response frame; or

The signal transmission strength and transmission delay of the probe response frame.

Correspondingly, in this embodiment, calculating the sending parameter includes: calculating at least one of a signal sending strength of the sounding response frame and a sending delay of the sounding response frame, where a signal transmission strength of the sounding response frame is The calculation method can be:

Determining the current load rate of the wireless access point, which can be calculated by using the terminal quantity currently accessed by the AP, that is, using the formula: load rate = (the number of terminals currently accessed by the AP/the maximum number of terminals that the AP can access) *100%, calculation, can also be calculated based on the current data traffic of the AP, that is, using the formula: Load rate = (AP current flow / AP maximum rate) * 100%, for calculation.

After calculating the load rate, calculating the signal transmission strength of the probe response frame according to the load rate, the minimum radio frequency signal strength of the wireless access point, and the maximum adjustable signal strength of the radio frequency, and the calculation formula is: Signal emission intensity = RF minimum transmitted signal strength + RF maximum adjustable signal strength amplitude * (1-load rate).

The calculation method of the transmission delay of the probe response frame is:

Determining a current load rate of the wireless access point, and the calculation method is as described above;

Calculating a signal transmission delay of the probe response frame according to the load rate and a maximum signal delay of the wireless access point, and the calculation formula is: signal transmission delay = maximum signal delay * load rate.

It can be seen from the above formula that the larger the load ratio is, the smaller the transmission intensity of the signal is, and the larger the transmission delay of the signal is, that is, the heavier the load of the AP, the smaller the signal strength of the feedback detection response frame, and the longer the delay Big.

It should be noted that, besides using the above calculation formula, the signal transmission delay can also be set to infinity. When the transmission delay of the signal is infinite, it can be regarded as that the AP does not respond to the probe request frame sent by the terminal.

S104: Send a probe response frame to the terminal by using the sending parameter, so that the terminal accesses a lightly loaded wireless access point according to the sending parameter.

That is, the probe response frame is transmitted with the signal transmission strength calculated in S103, or the probe response frame is transmitted with the signal transmission delay calculated in S103, or the signal transmission strength calculated in S103 and the signal transmission time. Delay sending a probe response frame.

In the wireless access point access method of the embodiment, when the load of the AP itself is greater than the threshold, that is, when the load is large, the AP calculates a sending parameter, and sends a probe response frame to the terminal according to the sending parameter, to notify the terminal of its current current The load is heavy. Compared with the existing access method, the method can actively inform the terminal of the heavy load information, so as to reduce the probability that the terminal selects the AP with heavy load, instead of passively rejecting the access of the terminal. Therefore, there is no problem that the terminal cannot access the wireless network for a long time, and the load balancing of the AP in the network is realized. A further access point access method disclosed in the embodiment of the present invention, corresponding to the foregoing method, the executor of the method in this embodiment is a terminal that sends a probe request frame to the AP and receives the probe response frame returned by the AP. As shown in FIG. 2, the method includes:

S201: The terminal sends a probe request frame to multiple APs with the same service set identifier SSID.

S202: The terminal receives the probe response frame sent by the multiple APs. As described in the foregoing embodiment, the probe response frame is calculated by each wireless access point, and is sent by using the sending parameter.

For a wireless access point whose load is not greater than a preset threshold, the sending parameter is a sending parameter determined according to the prior art, and for a wireless access point whose load is greater than a preset threshold, the sending parameter includes The signal transmission strength of the probe response frame; or the transmission delay of the probe response frame; or the signal transmission strength and the transmission delay of the probe response frame.

S203: Obtain a sending parameter of each probe response frame.

Generally, the terminal sends the probe request frame in the form of a wireless broadcast, and any AP having the same SSID can receive the probe request frame within its own receiving range, and correspondingly, the terminal usually receives two or The probe response frames sent by the two or more APs perform the operations described in S203 for each probe response frame. For multiple detection response frames, the terminal can obtain multiple transmission parameters, and each transmission parameter reflects the load of its corresponding AP.

a probe response frame detection response frame detection response frame S204: accessing a lightly loaded wireless access point according to the transmission parameter; When the sending parameter is the signal sending strength of the probe response frame, the terminal accesses the wireless access point with a strong signal transmission strength of the probe response frame; when the sending parameter is the transmission delay of the probe response frame, the terminal is connected. A wireless access point with a small transmission delay of the probe response frame.

When the transmission parameter is the signal transmission strength of the probe response frame and the transmission delay, the terminal accesses the signal transmission strength of the probe response frame or the wireless access point with a small transmission delay.

Because the signal transmission strength of the probe response frame is larger, the smaller the transmission delay of the probe response frame is, the smaller the load of the corresponding AP is. Therefore, the terminal can always access the AP with a light load and does not access the load. Heavier AP.

In the access method of the wireless access point, the terminal obtains the sending parameter from the probe response frame fed back by the received AP, and different sending parameters reflect the load of the corresponding AP, and the terminal can compare the sending parameters. Compared with the existing access method, the method enables the terminal to purposely select a AP with a light load, and avoids repeatedly requesting access to a heavily loaded AP. Therefore, the user is avoided for a long time. The problem of not being able to access the Internet has achieved load balancing of the AP. The embodiment of the present invention further discloses a wireless access point, which is used to implement the method in the embodiment shown in FIG. 1. As shown in FIG. 3, the wireless access point includes:

The receiving unit 301 is configured to receive a probe request frame sent by the terminal.

The determining unit 302 is configured to determine whether the load quantity of the wireless access point is greater than a preset threshold. The calculating unit 303 is configured to: when the load quantity of the wireless access point is greater than a preset threshold, and the probe request frame When the preset conditions are met, the transmission parameters are calculated;

The sending unit 304 is configured to send a probe response frame to the terminal by using the sending parameter, so that the terminal accesses a lightly loaded wireless access point according to the sending parameter.

When the terminal attempts to access the wireless access point according to the embodiment, the receiving unit receives the probe request frame sent by the terminal, and the determining unit determines whether the load of the AP is greater than a preset threshold, when the load of the AP is When the quantity is greater than a preset threshold and the probe request frame satisfies a preset condition, the calculation unit calculates a transmission parameter, and the sending unit sends a probe response frame to the terminal by using the sending parameter, so that the terminal sends the probe response according to the Parameters, access to a lighter wireless access point. When the determining unit determines that the load of the AP is not greater than a preset threshold, or the probe request frame does not meet the preset condition, the sending unit may send a probe response frame to the terminal, and the sending parameter is the same as the prior art. Further, the computing unit in this embodiment may include: a load rate determining subunit, configured to determine a current load rate of the wireless access point; a calculating subunit, configured to determine, according to the load rate, a radio frequency minimum transmit signal strength, a radio frequency maximum adjustable signal according to the wireless access point Calculating a signal transmission strength of the probe response frame, or calculating a signal transmission delay of the probe response frame according to the load rate and a maximum signal delay of the wireless access point; or Calculating the signal transmission strength of the probe response frame, and calculating the signal transmission strength of the probe response frame according to the load rate, the minimum radio frequency signal strength of the wireless access point, and the maximum adjustable signal strength of the radio frequency, and according to the load rate and the wireless access The maximum signal delay of the point, and the signal transmission delay of the probe response frame is calculated.

The wireless access point according to the embodiment can calculate the sending parameter according to the load condition, and send the probe response frame to the terminal by using the calculated sending parameter, thereby actively informing the terminal of the current load condition by sending the parameter, when When the load is heavy, it is beneficial to reduce the probability of being selected by the terminal. The embodiment of the present invention further discloses a wireless access point, which is used to implement the method in the embodiment shown in FIG. 1. As shown in FIG. 4, the wireless access point includes:

a receiver 401, configured to receive a probe request frame sent by the terminal;

The processor 402 is configured to determine whether the load of the wireless access point is greater than a preset threshold, when the load of the wireless access point is greater than a preset threshold, and the probe request frame meets a preset condition. And transmitting, by the transmitter 403, a probe response frame to the terminal by using the sending parameter calculated by the processor 402, so that the terminal accesses the lightly loaded wireless access according to the sending parameter. point.

When the terminal attempts to access the wireless access point according to the embodiment, the receiver receives the probe request frame sent by the terminal, and the processor determines whether the load of the AP is greater than a preset threshold, when the load of the AP is When the quantity is greater than the preset threshold and the probe request frame satisfies the preset condition, the sending parameter is calculated, and the sender sends the probe response frame to the terminal by using the sending parameter, so that the terminal according to the sending parameter, Access to a lightly loaded wireless access point. When the processor determines that the load of the AP is not greater than a preset threshold, or the probe request frame does not meet the preset condition, the transmitter may send a probe response frame to the terminal, and the sending parameter is the same as the prior art. Further, the processor in this embodiment is specifically configured to:

Determining a current load rate of the wireless access point; and calculating a signal transmission of the probe response frame according to the load rate and a radio frequency minimum transmit signal strength and a radio frequency maximum adjustable signal strength amplitude of the wireless access point. The strength, or the signal transmission delay of the probe response frame is calculated according to the load rate and the maximum signal delay of the wireless access point; or, according to the load rate and the radio frequency of the wireless access point Minimum transmitted signal strength, most RF The signal strength of the probe response frame is calculated, and the signal transmission delay of the probe response frame is calculated according to the load rate and the maximum signal delay of the wireless access point.

The wireless access point according to the embodiment can calculate the sending parameter according to the load condition, and send the probe response frame to the terminal by using the calculated sending parameter, thereby actively informing the terminal of the current load condition by sending the parameter, when When the load is heavy, it is beneficial to reduce the probability of being selected by the terminal. The embodiment of the present invention further discloses a terminal, which is used to implement the method in the embodiment shown in FIG. 2. As shown in FIG. 5, the terminal includes:

The sending unit 501 is configured to broadcast a probe request frame to the wireless access point.

The receiving unit 502 is configured to receive a probe response frame, where the probe response frame is determined by the wireless access point that the self load amount is greater than a preset threshold, and the probe request frame satisfies a preset condition, and the preset sending is calculated. a parameter, and sent with the sending parameter;

a sending parameter obtaining unit 503, configured to acquire a sending parameter of each probe response frame;

The access unit 504 is configured to access a wireless access point that is lightly loaded according to the sending parameter.

When the terminal needs to access the wireless network, the sending unit sends a probe request frame to the AP in the form of a wireless broadcast, the receiving unit receives the probe response frame fed back by the AP, and the sending parameter obtaining unit acquires the sending parameter from each probe response frame. The access unit accesses the wireless access point according to the sending parameter.

Further, the access unit described in this embodiment includes:

The terminal in this embodiment can obtain the sending parameter from the probe response frame, and access the wireless access point according to the sending parameter corresponding to the different AP. Because the sending parameter reflects the load condition of the AP, the terminal can have the terminal. The destination selects a light-weight wireless network for access, improving the user experience of connecting to the wireless network. The embodiment of the invention further discloses a terminal. As shown in FIG. 6, the terminal includes:

a transmitter 601, configured to broadcast a probe request frame to the wireless access point;

The receiver 602 is configured to receive a probe response frame, where the probe response frame is determined by the wireless access point to be negative When the load is greater than a preset threshold and the probe request frame satisfies a preset condition, the preset transmission parameter is calculated and sent by the sending parameter;

The processor 603 is configured to obtain a sending parameter of each probe response frame, and access a lighter wireless access point according to the sending parameter.

Further, the second processor in this embodiment is specifically configured to:

Compare the signal transmission strength of the probe response frames of different wireless access points, or compare the transmission delays of the probe response frames of different wireless access points, or compare the signal transmission strengths of the probe response frames of different wireless access points. And sending delays;

A wireless access point that has a strong signal transmission strength for accessing the probe response frame; or a wireless access point with a smaller transmission delay of the access probe response frame.

The terminal in this embodiment can obtain the sending parameter from the probe response frame, and access the wireless access point according to the sending parameter corresponding to the different AP. Because the sending parameter reflects the load condition of the AP, the terminal can have the terminal. The destination selects a light-weight wireless network for access, improving the user experience of connecting to the wireless network. The embodiment of the invention also discloses a wireless access network system, including:

The wireless access point shown in Figure 3 or 4 and the terminal shown in Figure 5 or 6.

In the radio access network system of the embodiment, after receiving the probe request frame sent by the terminal, the radio access point calculates a transmission parameter according to the load condition of the terminal, and sends a probe response frame to the terminal by using the sending parameter, The terminal accesses the wireless access point with light load according to the sending parameter of the received probe response frame, thereby avoiding the problem of repeatedly connecting the heavily loaded wireless access point, thereby better implementing the wireless access point in the network. Load balancing between the two, and avoiding the problem that users can't connect to the network for a long time. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts between the various embodiments may be referred to each other.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Rights request

1. A wireless access point access method, characterized by including:

Receive the detection request frame sent by the terminal;

Determine whether its own load is greater than the preset threshold;

When the own load is greater than the preset threshold and the detection request frame meets the preset conditions, calculate the sending parameters;

Send a detection response frame to the terminal using the transmission parameters, so that the terminal can access a wireless access point with a lighter load based on the transmission parameters.

2. The method according to claim 1, characterized in that the preset conditions are specifically:

The media access control address in the probe request frame is not included in the connected list; or,

Empty condition.

3. The method according to claim 1 or 2, characterized in that the transmission parameters include any one of the following: the signal transmission strength of the detection response frame;

The sending delay of the detection response frame; and,

The signal transmission strength and transmission delay of the detection response frame.

4. The method according to claim 3, characterized in that said calculating transmission parameters includes:

Calculate at least one of the signal transmission strength of the detection response frame and the transmission delay of the detection response frame; wherein,

Determine the current load rate of the wireless access point;

Calculate the signal transmission strength of the detection response frame based on the load rate and the minimum radio frequency transmit signal strength and the radio frequency maximum adjustable signal strength amplitude of the wireless access point;

Calculating the transmission delay of the probe response frame includes:

Determine the current load rate of the wireless access point;

The signal transmission delay of the detection response frame is calculated based on the load rate and the maximum signal delay of the wireless access point.

5. The method according to claim 4, characterized in that,

In the case where the transmission parameters include the signal transmission strength of the detection response frame, the greater the load rate, the smaller the signal transmission strength; In the case where the transmission parameters include the transmission delay of the detection response frame, the greater the load rate, the greater the transmission delay; and,

In the case where the transmission parameters include the signal transmission strength and transmission delay of the detection response frame, the greater the load rate, the smaller the signal transmission strength and the greater the transmission delay.

6. A wireless access point access method, characterized by including:

Broadcast and send probe request frames to multiple wireless access points with the same service set identifier DDIS;

Receive a probe response frame sent by the plurality of wireless access points, the probe response frame being sent by each wireless access point with the calculated transmission parameters;

Get the sending parameters of each probe response frame;

According to the sending parameters, a wireless access point with a lighter load is accessed.

7. The method according to claim 6, characterized in that the sending parameters include:

The signal transmission strength of the detection response frame; or,

The sending delay of the detection response frame; or,

8. The method according to claim 7, characterized in that, according to the transmission parameters, accessing a wireless access point with a lighter load includes:

Compare the signal transmission strengths of the probe response frames of different wireless access points, and access the wireless access point with a higher signal transmission strength of the probe response frames; or,

Compare the detection response frame transmission delays of different wireless access points, and access the wireless access point with a smaller detection response frame transmission delay.

9. A wireless access point, characterized by including:

The receiving unit is used to receive the detection request frame sent by the terminal;

A judgment unit, used to judge whether its own load is greater than a preset threshold; a calculation unit, used to calculate when the load of the wireless access point is greater than the preset threshold and the detection request frame meets the preset conditions. sending parameters; a sending unit, configured to send a detection response frame to the terminal using the sending parameters, so that the terminal can access a wireless access point with a lighter load according to the sending parameters.

10. The wireless access point according to claim 9, characterized in that the calculation unit includes: a load rate determination subunit, used to determine the current load rate of the wireless access point;

Calculation subunit, configured to calculate the signal transmission strength of the detection response frame based on the load rate and the minimum radio frequency transmission signal strength of the wireless access point, the radio frequency maximum adjustable information and the radio frequency maximum adjustable signal strength amplitude. degree; or, calculate the signal transmission delay of the detection response frame based on the load rate and the maximum signal delay of the wireless access point; or, based on the load rate and the radio frequency of the wireless access point The minimum transmit signal strength and the maximum adjustable signal strength amplitude of the radio frequency are used to calculate the signal transmission strength of the detection response frame, and based on the load rate and the maximum signal delay of the wireless access point, the detection response frame is calculated signal transmission delay.

11. The wireless access point according to claim 10, characterized in that,

When the calculation subunit is used to calculate the signal transmission strength of the detection response frame, the greater the load rate, the smaller the signal transmission strength;

In the case where the calculation subunit is used to calculate the signal transmission delay of the detection response frame, the greater the load rate, the greater the transmission delay; and,

In the case where the calculation subunit is used to calculate the signal transmission strength of the detection response frame and calculate the signal transmission delay of the detection response frame, the greater the load rate, the smaller the signal transmission strength. And the sending delay is larger.

12. A terminal, characterized in that it includes:

A sending unit, configured to broadcast and send the detection request frame to the wireless access point;

A receiving unit configured to receive a detection response frame. The detection response frame is calculated by the wireless access point when the wireless access point determines that its load is greater than a preset threshold and the detection request frame meets the preset conditions. , and sent with the sending parameters;

A sending parameter acquisition unit, used to acquire the sending parameters of each detection response frame;

The access unit is configured to access a wireless access point with a lighter load according to the sending parameters.

13. The terminal according to claim 12, characterized in that the access unit includes:

The comparison subunit is used to compare the signal transmission strength of the detection response frames of different wireless access points, or to compare the transmission delays of the detection response frames of different wireless access points, or to compare the detection of different wireless access points. The signal transmission strength and transmission delay of the response frame;

The access subunit is used to access a wireless access point with a relatively high signal transmission strength of the detection response frame; or, to access a wireless access point with a small transmission delay of the detection response frame.

14. A wireless access network system, characterized by comprising the wireless access point described in any one of claims 9 to 11 and the terminal described in claim 12 or 13.