CN102802232B - Wireless access point accessing method and wireless access point and terminal - Google Patents
Wireless access point accessing method and wireless access point and terminal Download PDFInfo
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- CN102802232B CN102802232B CN201210259522.4A CN201210259522A CN102802232B CN 102802232 B CN102802232 B CN 102802232B CN 201210259522 A CN201210259522 A CN 201210259522A CN 102802232 B CN102802232 B CN 102802232B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
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Abstract
The invention provides a wireless access point accessing method which comprises the steps of receiving a detection requesting frame sent by a terminal to judge whether self-capacity is larger than a preset threshold, when the self-capacity is larger than the preset threshold and the detection requesting frame meets preset conditions, calculating sending parameters, and sending detection response frame to the terminal according to the sending parameters, so that the terminal can access to wireless access points with light load according to the sending parameters. The wireless access point accessing method can actively inform current capacity situation of the terminal, and the terminal can access into access points (AP) with light load according to sending parameters of different APs, thereby avoiding the fact that the terminal sends detection requesting frame to APs with heavy load for multiple times and is rejected for multiple times, further balancing load among APs, and avoiding the fact that users cannot get access to the internet for a long time.
Description
Technical Field
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
An Access Point (AP) is a wireless switch for a wireless network, and has a limited carrying capacity, and when there are many wireless Access terminals in a certain area, two or more APs configured with the same Service Set Identifier (SSID) are usually Set in the area. In this case, a problem of load imbalance of two or more APs configured with the same SSID generally occurs, and the existing wireless access point access method solves this problem by: when the load of an AP reaches a preset threshold, the AP will refuse the access of the terminal when receiving a probe request frame sent by the terminal.
After the terminal is rejected, a probe request frame may be sent to the AP with a heavy load again to request access to the wireless network, and the AP with a heavy load may reject access again, which is repeated, thereby easily causing a long-time experience that the user cannot surf the internet. If the user is rejected more than the set number of times, the heavily loaded AP will still allow the user to access, resulting in further load increase. Therefore, when the existing wireless access point access method is used for accessing a wireless network, load balancing cannot be really realized, and a user cannot access the network for a long time.
Disclosure of 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 problems that the existing wireless access point access method cannot really realize load balancing and a user cannot access a network for a long time.
The invention provides a wireless access point access method in a first aspect, which comprises the following steps:
receiving a detection request frame sent by a terminal;
judging whether the self load is larger than a preset threshold value or not;
when the self load capacity is larger than a preset threshold value and the detection request frame meets a preset condition, calculating a sending parameter;
and sending a detection response frame to the terminal by using the sending parameters so that the terminal accesses a wireless access point with lighter load according to the sending parameters.
In a specific implementation manner of the first aspect of the present invention:
the preset conditions optionally include: the MAC address in the probe request frame is not included in a connected list; or, an empty condition.
The transmission parameters optionally include: the signal transmission strength of the probe response frame; or, the sending delay of the probe response frame; or the signal transmission strength and the transmission delay of the probe response frame.
The calculating the transmission parameters optionally comprises:
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 the signal sending intensity of the detection response frame according to the load rate, the minimum radio frequency emission signal intensity of the wireless access point and the maximum radio frequency adjustable signal intensity amplitude;
calculating the transmission delay of the probe response frame comprises:
determining a current load rate of the wireless access point;
and calculating the signal sending time delay of the detection response frame according to the load rate and the maximum signal time delay of the wireless access point.
The second aspect of the present invention provides another wireless access point access method, including:
broadcasting and sending a probe request frame to a plurality of wireless access points with the same service set identification (DDIS);
receiving a probe response frame transmitted by the plurality of wireless access points, the probe response frame being transmitted by each wireless access point with the calculated transmission parameters;
acquiring a sending parameter of each detection response frame;
and accessing the wireless access point with lighter load according to the sending parameters.
In a specific implementation manner of the second aspect of the invention:
the transmission parameters optionally include: the signal transmission strength of the probe response frame; or, the sending delay of the probe response frame; or the signal transmission strength and the transmission delay of the probe response frame.
The wireless access point with lighter access load optionally comprises, according to the transmission parameter:
comparing the signal transmission strength of the detection response frames of different wireless access points, and accessing the wireless access point with higher signal transmission strength of the detection response frame; or,
and comparing the sending time delays of the probe response frames of different wireless access points, and accessing the wireless access point with smaller sending time delay of the probe response frame.
A third aspect of the present invention provides a wireless access point, comprising:
a receiving unit, configured to receive a probe request frame sent by a terminal;
the wireless access point comprises a judging unit and a calculating unit, wherein the judging unit is used for judging whether the load of the wireless access point is larger than a preset threshold value or not, and the calculating unit is used for calculating a sending parameter when the load of the wireless access point is larger than the preset threshold value and the detection request frame meets a preset condition;
and the sending unit is used for sending the probe response frame to the terminal by using the sending parameters so that the terminal accesses the wireless access point with lighter load according to the sending parameters.
In a specific implementation manner of the third aspect of the invention:
the computing unit optionally comprises:
a load rate determining subunit, configured to determine a current load rate of the wireless access point;
the calculation subunit is configured to calculate the signal transmission strength of the probe response frame according to the load factor, the radio frequency minimum transmission signal strength of the wireless access point, and the radio frequency maximum adjustable information radio frequency maximum adjustable signal strength amplitude; or, calculating the signal transmission time delay of the probe response frame according to the load rate and the maximum signal time delay of the wireless access point; or, calculating the signal transmission strength of the probe response frame according to the load rate, the minimum radio frequency transmission signal strength of the wireless access point, and the maximum radio frequency adjustable signal strength amplitude, and calculating the signal transmission delay of the probe response frame according to the load rate and the maximum signal delay of the wireless access point.
A fourth aspect of the present invention provides a terminal, including:
a sending unit, configured to broadcast and send a probe request frame to a wireless access point;
a receiving unit, configured to receive a probe response frame, where the probe response frame is sent by calculating a preset sending parameter when a wireless access point determines that the self load is greater than a preset threshold and the probe request frame meets a preset condition, and the sending parameter is sent;
a transmission parameter acquiring unit, configured to acquire a transmission parameter of each probe response frame;
and the access unit is used for accessing the wireless access point with lighter load according to the sending parameters.
In a specific implementation manner of the fourth aspect of the invention:
the access unit optionally comprises:
the comparison subunit is configured to compare signal transmission strengths of probe response frames of different wireless access points, or compare transmission delays of probe response frames of different wireless access points, or compare signal transmission strengths and transmission delays of probe response frames of different wireless access points;
the access subunit is used for accessing a wireless access point with higher signal transmission strength of the detection response frame; or, the wireless access point with smaller transmission delay of the access probe response frame is accessed.
A fifth aspect of the present invention provides a radio access network system, comprising the radio access point of the third aspect and the terminal of the fourth aspect.
According to the wireless access point access method, the wireless access point and the terminal, when the terminal tries to access the AP, the AP actively informs the current load condition of the terminal in a mode of sending the detection response frame by using the sending parameters related to the load condition, and the terminal accesses the AP with lighter load according to the sending parameters of different APs, so that the problem that the terminal sends the detection request frame to the AP with heavy load for multiple times and is rejected for multiple times is avoided, the load balance among the APs is realized, and the problem that a user cannot surf the internet for a long time is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for accessing a wireless access point according to an embodiment of the present invention;
fig. 2 is a flowchart of 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 invention;
fig. 4 is a schematic structural diagram of 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 invention;
fig. 6 is a schematic structural diagram of another terminal disclosed in the embodiment of the present invention.
Detailed Description
The invention discloses a wireless access point access method, which comprises the following steps: the method comprises the steps that a terminal sends a detection request frame to a wireless access point, the wireless access point receives the detection request frame sent by the terminal, whether the self load is larger than a preset threshold value or not is judged, when the self load is larger than the preset threshold value and the detection request frame meets a preset condition, sending parameters are calculated, detection response frames are sent to the terminal according to the sending parameters, the terminal receives and obtains the sending parameters of each detection response frame, and the wireless access point with light load is accessed according to the sending parameters.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a wireless access point access method, which is applied to the following scenes: two or more APs have the same SSID, a terminal can connect to a wireless network through any one of the APs, and in order to connect to the AP, the terminal transmits a probe request frame in a wireless broadcast manner, and each AP can receive the probe request frame, as shown in fig. 1, the method includes:
s101: an AP receives a Probe request frame (Probe request) sent by a terminal;
s102: the AP judges whether the load of the AP is larger than a preset threshold value or not;
the load of the AP itself can be determined by the number of terminals currently accessing the AP, or by the current data traffic of the AP. In any way, as long as the load is greater than the preset threshold, the AP is considered to be in the overload state.
S103: when the self load capacity is larger than a preset threshold value and the detection request frame meets a preset condition, calculating a sending parameter;
the preset conditions may specifically be: the Media Access Control (MAC) address 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 indicates that the terminal identified by the MAC address is not connected to the AP, and in order to prevent the heavy-load AP from accessing a new terminal, it is necessary to calculate a sending parameter to inform the terminal of the load condition of the AP through the sending parameter.
If the MAC address exists in the connected list of the AP, the terminal identified by the MAC address has access to the AP, and the terminal does not need to inform the load condition of the AP, and at the moment, a useless detection response frame does not need to be generated, and normal wireless network service is not influenced.
In addition, the preset condition may be specifically a null condition, that is, the precondition for calculating the transmission parameter is only that the load of the AP itself is greater than a preset threshold, and no other condition exists. In practical applications, the content of the preset condition may be set according to specific requirements, and the embodiment is not limited.
In this step, the transmission parameter refers to a preset parameter of a signal when the probe response frame is transmitted, and may include:
the signal transmission strength of the probe response frame; or,
the sending time delay of the probe response frame; or,
the signal transmission strength and the transmission delay of the probe response frame.
Correspondingly, in this embodiment, calculating the transmission 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 the signal transmission strength of the probe response frame may be calculated by:
determining the current load rate of the wireless access point, which can be calculated according to the amount of terminals currently accessed by the AP, that is, using the formula: the load rate = (the number of terminals currently accessed by the AP/the maximum number of terminals accessible by the AP) × 100%, and the calculation may be performed based on the current data traffic of the AP, that is, using the formula: load rate = (current AP flow/maximum AP rate) × 100%, calculation is performed.
After the load rate is calculated, the signal sending intensity of the detection response frame is calculated according to the load rate, the radio frequency minimum transmitting signal intensity of the wireless access point and the radio frequency maximum adjustable signal intensity amplitude, and the calculation formula is as follows: transmit strength of signal = radio frequency minimum transmit signal strength + radio frequency maximum adjustable signal strength amplitude (1-duty cycle).
The method for calculating the sending time delay of the probe response frame comprises the following steps:
determining the current load rate of the wireless access point, wherein the calculation method is as described above;
and calculating the signal transmission time delay of the detection response frame according to the load rate and the maximum signal time delay of the wireless access point, wherein the calculation formula is as follows: 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 is, the smaller the signal intensity of the feedback probe response frame is, and the larger the delay is.
It should be noted that, in addition to the calculation using the above calculation formula, the signal transmission delay may also be set to be infinite, and when the signal transmission delay is infinite, it can be regarded that the AP does not respond to the probe request frame sent by the terminal.
S104: and sending a Probe response frame (Probe response) to the terminal by using the sending parameters, so that the terminal accesses a wireless access point with lighter load according to the sending parameters.
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 probe response frame is transmitted with the signal transmission strength and the signal transmission delay calculated in S103.
In the method for accessing the wireless access point, when the load of the AP is greater than the threshold, that is, the load is greater, the AP calculates the transmission parameter, and sends the probe response frame to the terminal according to the transmission parameter to notify that the current load of the terminal is greater.
In another access point access method disclosed in the embodiment of the present invention, corresponding to the above method, an execution subject of the method in this embodiment is a terminal that sends a probe request frame to an AP and receives a probe response frame returned by the AP, as shown in fig. 2, the method includes:
s201: a terminal broadcasts and sends a detection request frame to a plurality of APs with the same service set identifier SSID;
s202: the terminal receives the probe response frames sent by the APs, and as described in the above embodiment, the probe response frames are sent by each wireless access point calculating the sending parameters and sending the parameters;
for a wireless access point with a load not greater than a preset threshold, the sending parameter is the sending parameter determined according to the prior art, and for a wireless access point with a load greater than the preset threshold, the sending parameter includes the signal sending intensity of the probe response frame; or, the sending delay of the probe response frame; or the signal transmission strength and the transmission delay of the probe response frame.
S203: acquiring a sending parameter of each detection response frame;
in general, the terminal sends a probe request frame in a wireless broadcast manner, any AP with the same SSID can receive the probe request frame within its own receiving range, and correspondingly, the terminal also generally receives probe response frames sent by two or more APs, and for each probe response frame, the operation described in S203 is performed. For multiple probe response frames, the terminal may obtain multiple transmission parameters, where each transmission parameter reflects a load condition of its corresponding AP.
Probe response frame S204: accessing a wireless access point with lighter load according to the sending parameters;
when the sending parameter is the signal sending intensity of the detection response frame, the terminal accesses a wireless access point with larger signal sending intensity of the detection response frame; and when the sending parameter is the sending time delay of the detection response frame, the terminal accesses the wireless access point with smaller sending time delay of the detection response frame.
And when the sending parameters are the signal sending strength and the sending time delay of the detection response frame, the terminal accesses the wireless access point with smaller signal sending strength or sending time delay of the detection response frame.
Because the larger the signal transmission strength of the probe response frame is, the smaller the transmission delay of the probe response frame is, the smaller the load of the AP corresponding to the probe response frame is, the terminal can always access the AP with lighter load, and cannot access the AP with heavier load.
In the method for accessing the wireless access point, the terminal acquires the transmission parameters from the received probe response frame fed back by the AP, different transmission parameters reflect the load condition of the AP corresponding to the terminal, and the terminal can access the AP with lighter load by comparing the transmission parameters.
The embodiment of the present invention further discloses a wireless access point, which is used for implementing the method of the embodiment shown in fig. 1, and as shown in fig. 3, the wireless access point includes:
a receiving unit 301, configured to receive a probe request frame sent by a terminal;
a determining unit 302, configured to determine whether a load of the wireless access point is greater than a preset threshold; a calculating unit 303, configured to calculate a sending parameter when a load of the wireless access point is greater than a preset threshold and the probe request frame meets a preset condition;
a sending unit 304, configured to send a probe response frame to the terminal according to the sending parameter, so that the terminal accesses a wireless access point with a lighter load according to the sending parameter.
When a terminal tries to access the wireless access point, a receiving unit receives a probe request frame sent by the terminal, a judging unit judges whether the load of the AP is greater than a preset threshold value or not, when the load of the AP is greater than the preset threshold value and the probe request frame meets a preset condition, a calculating unit calculates a sending parameter, and a sending unit sends a probe response frame to the terminal according to the sending parameter, so that the terminal accesses the wireless access point with lighter load according to the sending parameter. When the determining unit determines that the load of the AP is not greater than the preset threshold or the probe request frame does not satisfy the preset condition, the sending unit may send a probe response frame to the terminal, where the sending parameters are the same as those in the prior art.
Further, the calculating unit according to 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 calculate a signal transmission strength of the probe response frame according to the load rate, a minimum radio frequency transmission signal strength of the wireless access point, and a maximum radio frequency adjustable signal strength amplitude, or calculate 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 according to the load rate, the minimum radio frequency transmission signal strength of the wireless access point, and the maximum radio frequency adjustable signal strength amplitude, and calculating the signal transmission delay of the probe response frame according to the load rate and the maximum signal delay of the wireless access point.
The wireless access point described in this embodiment can calculate the transmission parameter according to the self load condition, and send the probe response frame to the terminal according to the calculated transmission parameter, so as to actively inform the current load condition of the terminal through the transmission parameter, and when the terminal is loaded, the probability of being selected by the terminal is favorably reduced.
The embodiment of the present invention further discloses a wireless access point, which is used for implementing the method of the embodiment shown in fig. 1, and as shown in fig. 4, the wireless access point includes:
a receiver 401 for receiving a probe request frame transmitted by a terminal;
a processor 402, configured to determine whether a load of the wireless access point is greater than a preset threshold, and when the load of the wireless access point is greater than the preset threshold and the probe request frame meets a preset condition, calculate a sending parameter;
a transmitter 403, configured to transmit a probe response frame to the terminal according to the transmission parameters calculated by the processor 402, so that the terminal accesses a wireless access point with a lighter load according to the transmission parameters.
When a terminal tries to access the wireless access point, a receiver receives a probe request frame sent by the terminal, a processor judges whether the load of the AP is greater than a preset threshold value, when the load of the AP is greater than the preset threshold value and the probe request frame meets a preset condition, a sending parameter is calculated, and a sender sends a probe response frame to the terminal according to the sending parameter, so that the terminal accesses the wireless access point with lighter load according to the sending parameter. When the processor determines that the load of the AP is not greater than the preset threshold or the probe request frame does not satisfy the preset condition, the transmitter may transmit a probe response frame to the terminal, where the transmission parameters are the same as those in the prior art.
Further, the processor according to this embodiment is specifically configured to:
determining a current load rate of the wireless access point; calculating the signal sending strength of the detection response frame according to the load rate, the minimum radio frequency transmission signal strength of the wireless access point and the maximum radio frequency adjustable signal strength amplitude, or calculating the signal sending time delay of the detection response frame according to the load rate and the maximum signal time delay of the wireless access point; or, calculating the signal transmission strength of the probe response frame according to the load rate, the minimum radio frequency transmission signal strength of the wireless access point, and the maximum radio frequency adjustable signal strength amplitude, and calculating the signal transmission delay of the probe response frame according to the load rate and the maximum signal delay of the wireless access point.
The wireless access point described in this embodiment can calculate the transmission parameter according to the self load condition, and send the probe response frame to the terminal according to the calculated transmission parameter, so as to actively inform the current load condition of the terminal through the transmission parameter, and when the terminal is loaded, the probability of being selected by the terminal is favorably reduced.
The embodiment of the present invention further discloses a terminal, which is used for implementing the method in the embodiment shown in fig. 2, and as shown in fig. 5, the terminal includes:
a sending unit 501, configured to send a probe request frame to a wireless access point in a broadcast manner;
a receiving unit 502, configured to receive a probe response frame, where the probe response frame is sent by calculating a preset sending parameter when the wireless access point determines that the self load is greater than a preset threshold and the probe request frame meets a preset condition, and the sending parameter is sent;
a transmission parameter acquiring unit 503, configured to acquire a transmission parameter of each probe response frame;
an accessing unit 504, configured to access a wireless access point with a lighter load according to the sending parameter.
When the terminal needs to be accessed into a wireless network, the sending unit sends a detection request frame to the AP in a wireless broadcast mode, the receiving unit receives a detection response frame fed back by the AP, the sending parameter acquiring unit acquires a sending parameter from each detection response frame, and the access unit accesses the wireless access point according to the sending parameter.
Further, the access unit described in this embodiment includes:
the comparison subunit is configured to compare signal transmission strengths of probe response frames of different wireless access points, or compare transmission delays of probe response frames of different wireless access points, or compare signal transmission strengths and transmission delays of probe response frames of different wireless access points;
the access subunit is used for accessing a wireless access point with higher signal transmission strength of the detection response frame; or, the wireless access point with smaller transmission delay of the access probe response frame is accessed.
The terminal described in this embodiment can acquire the transmission parameters from the probe response frame and access the wireless access point according to the transmission parameters corresponding to different APs, and because the transmission parameters reflect the load conditions of the APs, the terminal can purposefully select a wireless network with a light load to access, thereby improving the user experience of connecting the user with the wireless network.
The embodiment of the present invention further discloses a terminal, as shown in fig. 6, the terminal includes:
a transmitter 601, configured to broadcast and transmit a probe request frame to a wireless access point;
a receiver 602, configured to receive a probe response frame, where the probe response frame is sent by calculating a preset sending parameter when a wireless access point determines that the self load is greater than a preset threshold and the probe request frame meets a preset condition, and the sending parameter is sent;
the processor 603 is configured to obtain a transmission parameter of each probe response frame, and access a wireless access point with a lighter load according to the transmission parameter.
Further, the second processor in this embodiment is specifically configured to:
comparing the signal transmission strength of the probe response frames of different wireless access points, or comparing the transmission time delay of the probe response frames of different wireless access points, or comparing the signal transmission strength and the transmission time delay of the probe response frames of different wireless access points;
the wireless access point with higher signal transmission intensity of the access detection response frame; or, the wireless access point with smaller transmission delay of the access probe response frame is accessed.
The terminal described in this embodiment can acquire the transmission parameters from the probe response frame and access the wireless access point according to the transmission parameters corresponding to different APs, and because the transmission parameters reflect the load conditions of the APs, the terminal can purposefully select a wireless network with a light load to access, thereby improving the user experience of connecting the user with the wireless network.
The embodiment of the invention also discloses a wireless access network system, which comprises:
a wireless access point as shown in fig. 3 or 4 and a terminal as shown in fig. 5 or 6.
In the wireless access network system of this embodiment, after receiving a probe request frame sent by a terminal, a wireless access point calculates a sending parameter according to its own load condition, and sends a probe response frame to the terminal according to the sending parameter, and the terminal accesses a wireless access point with a light load according to the sending parameter of the received probe response frame, thereby avoiding the problem of repeatedly connecting wireless access points with a heavy load, better realizing load balance among wireless access points in a network, and avoiding the problem that a user cannot connect the network for a long time.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A wireless access point access method, comprising:
receiving a detection request frame sent by a terminal;
judging whether the self load is larger than a preset threshold value or not;
when the self load capacity is larger than a preset threshold value and the detection request frame meets a preset condition, calculating a sending parameter;
sending a detection response frame to the terminal by using the sending parameters so that the terminal accesses a wireless access point with lighter load according to the sending parameters;
the sending parameters include:
the signal transmission strength of the probe response frame; or,
the sending time delay of the probe response frame; or,
the signal sending strength and the sending time delay of the detection response frame;
the calculation formula of the signal transmission strength of the probe response frame is as follows: the signal emission strength is equal to the radio frequency minimum emission signal strength of the wireless access point + the radio frequency maximum adjustable signal strength amplitude of the wireless access point (1-the current load rate of the wireless access point);
the calculation formula of the sending time delay of the probe response frame is as follows: the signal transmission delay is the maximum signal delay of the wireless access point and the current load rate of the wireless access point.
2. The method according to claim 1, wherein the preset conditions are specifically:
the MAC address in the probe request frame is not included in a connected list; or,
an empty condition.
3. A wireless access point access method, comprising:
broadcasting and sending a probe request frame to a plurality of wireless access points with the same service set identification (DDIS);
receiving a probe response frame transmitted by the plurality of wireless access points, the probe response frame being transmitted by each wireless access point with the calculated transmission parameters;
acquiring a sending parameter of each detection response frame;
accessing a wireless access point with lighter load according to the sending parameters;
the sending parameters include:
the signal transmission strength of the probe response frame; or,
the sending time delay of the probe response frame; or,
the signal sending strength and the sending time delay of the detection response frame;
the calculation formula of the signal transmission strength of the probe response frame is as follows: the signal emission strength is equal to the radio frequency minimum emission signal strength of the wireless access point + the radio frequency maximum adjustable signal strength amplitude of the wireless access point (1-the current load rate of the wireless access point);
the calculation formula of the sending time delay of the probe response frame is as follows: the signal transmission delay is the maximum signal delay of the wireless access point and the current load rate of the wireless access point.
4. The method of claim 3, wherein accessing a lightly loaded wireless access point according to the transmission parameters comprises:
comparing the signal transmission strength of the detection response frames of different wireless access points, and accessing the wireless access point with higher signal transmission strength of the detection response frame; or,
and comparing the sending time delays of the probe response frames of different wireless access points, and accessing the wireless access point with smaller sending time delay of the probe response frame.
5. A wireless access point, comprising:
a receiving unit, configured to receive a probe request frame sent by a terminal;
the judging unit is used for judging whether the self load is larger than a preset threshold value or not; the calculation unit is used for calculating a sending parameter when the load of the wireless access point is greater than a preset threshold and the detection request frame meets a preset condition;
a sending unit, configured to send a probe response frame to the terminal according to the sending parameter, so that the terminal accesses a wireless access point with a lighter load according to the sending parameter;
the calculation unit includes:
a load rate determining subunit, configured to determine a current load rate of the wireless access point;
the calculation subunit is configured to calculate a signal transmission intensity of the probe response frame according to the load factor, the radio frequency minimum transmission signal intensity of the wireless access point, and the radio frequency maximum adjustable signal intensity amplitude; or, calculating the signal transmission time delay of the probe response frame according to the load rate and the maximum signal time delay of the wireless access point; or, calculating the signal transmission strength of the probe response frame according to the load rate, the minimum radio frequency transmission signal strength of the wireless access point, and the maximum radio frequency adjustable signal strength amplitude, and calculating the signal transmission delay of the probe response frame according to the load rate and the maximum signal delay of the wireless access point;
wherein, the calculation formula for calculating the signal transmission strength of the probe response frame according to the load rate, the minimum radio frequency transmission signal strength of the wireless access point, and the maximum radio frequency adjustable signal strength amplitude is as follows: the signal emission strength is equal to the radio frequency minimum emission signal strength of the wireless access point + the radio frequency maximum adjustable signal strength amplitude of the wireless access point (1-the current load rate of the wireless access point);
the calculation formula for calculating the signal transmission delay of the probe response frame according to the load rate and the maximum signal delay of the wireless access point is as follows: the signal transmission delay is the maximum signal delay of the wireless access point and the current load rate of the wireless access point.
6. A terminal, comprising:
a sending unit, configured to broadcast and send a probe request frame to a wireless access point;
a receiving unit, configured to receive a probe response frame, where the probe response frame is sent by calculating a preset sending parameter when a wireless access point determines that the self load is greater than a preset threshold and the probe request frame meets a preset condition, and the sending parameter is sent;
a transmission parameter acquiring unit, configured to acquire a transmission parameter of each probe response frame;
the access unit is used for accessing the wireless access point with lighter load according to the sending parameters;
the sending parameters include:
the signal transmission strength of the probe response frame; or,
the sending time delay of the probe response frame; or,
the signal sending strength and the sending time delay of the detection response frame;
the calculation formula of the signal transmission strength of the probe response frame is as follows: the signal emission strength is equal to the radio frequency minimum emission signal strength of the wireless access point + the radio frequency maximum adjustable signal strength amplitude of the wireless access point (1-the current load rate of the wireless access point);
the calculation formula of the sending time delay of the probe response frame is as follows: the signal sending time delay is the maximum signal time delay of the wireless access point and the current load rate of the wireless access point;
the access unit includes:
the comparison subunit is configured to compare signal transmission strengths of probe response frames of different wireless access points, or compare transmission delays of probe response frames of different wireless access points, or compare signal transmission strengths and transmission delays of probe response frames of different wireless access points;
the signal transmission strength of the probe response frame is as follows: the signal emission strength is equal to the radio frequency minimum emission signal strength of the wireless access point + the radio frequency maximum adjustable signal strength amplitude of the wireless access point (1-the current load rate of the wireless access point);
the sending time delay of the probe response frame is as follows: the signal sending time delay is the maximum signal time delay of the wireless access point and the current load rate of the wireless access point;
the access subunit is used for accessing a wireless access point with higher signal transmission strength of the detection response frame; or, the wireless access point with smaller transmission delay of the access probe response frame is accessed.
7. A radio access network system comprising the radio access point of claim 5 and the terminal of claim 6.
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| CN201210259522.4A CN102802232B (en) | 2012-07-25 | 2012-07-25 | Wireless access point accessing method and wireless access point and terminal |
| PCT/CN2013/072692 WO2014015676A1 (en) | 2012-07-25 | 2013-03-15 | Wireless access point access method, wireless access point and terminal |
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| CN201210259522.4A CN102802232B (en) | 2012-07-25 | 2012-07-25 | Wireless access point accessing method and wireless access point and terminal |
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| CN102802232B (en) * | 2012-07-25 | 2015-01-21 | 华为技术有限公司 | Wireless access point accessing method and wireless access point and terminal |
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| WO2014117405A1 (en) * | 2013-02-04 | 2014-08-07 | 华为技术有限公司 | Method and device for establishing wlan connection between user equipment and wi-fi access point |
| CN103974317B (en) * | 2013-02-06 | 2018-06-05 | 电信科学技术研究院 | A kind of WLAN loads determine method, apparatus and system |
| CN103067976B (en) * | 2013-02-07 | 2015-08-05 | 深圳市磊科实业有限公司 | A kind of load-balancing method and implement device with the WAP (wireless access point) of multiplex roles |
| CN103313269B (en) * | 2013-05-10 | 2015-09-02 | 创业软件股份有限公司 | A kind of locator data real-time radio transmission method for burst high load condition |
| CN103561429B (en) * | 2013-11-11 | 2016-09-21 | 宇龙计算机通信科技(深圳)有限公司 | Wireless communications method and Wireless Telecom Equipment |
| US10257759B2 (en) | 2014-01-20 | 2019-04-09 | Hewlett Packard Enterprise Development Lp | Load balancing among wireless access points |
| WO2016026124A1 (en) * | 2014-08-21 | 2016-02-25 | 华为技术有限公司 | Wireless network access control method, device and system |
| CN105101106B (en) * | 2015-07-16 | 2018-07-31 | 上海斐讯数据通信技术有限公司 | Wireless network load-balancing method and system |
| CN105592503A (en) * | 2015-09-11 | 2016-05-18 | 杭州华三通信技术有限公司 | Load balancing method and device |
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| CN106385695B (en) * | 2016-09-23 | 2020-03-06 | 新华三技术有限公司 | Method and device for sending detection response frame |
| US11122502B2 (en) | 2017-03-07 | 2021-09-14 | Aruba Networks, Inc. | Access point fit |
| CN107682890B (en) * | 2017-09-19 | 2021-02-26 | 杭州迪普科技股份有限公司 | Terminal access control method and device |
| CN108616929B (en) * | 2018-04-19 | 2020-11-27 | 新华三技术有限公司 | Load balancing method and device, AP and machine readable storage medium |
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