CN106385695B - Method and device for sending detection response frame - Google Patents
Method and device for sending detection response frame Download PDFInfo
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- CN106385695B CN106385695B CN201610846705.4A CN201610846705A CN106385695B CN 106385695 B CN106385695 B CN 106385695B CN 201610846705 A CN201610846705 A CN 201610846705A CN 106385695 B CN106385695 B CN 106385695B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W48/20—Selecting an access point
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Abstract
The embodiment of the invention provides a method and a device for sending a detection response frame, wherein the method for sending the detection response frame comprises the following steps: receiving a probe request frame from a terminal STA; when the STA needing to be responded is determined according to the detection request frame, determining the waiting time corresponding to the signal strength according to the signal strength measured when the detection request frame is received and the corresponding relation between the preset signal strength range and the waiting time, wherein the larger the average value of all the signal strengths in the signal strength range is, the longer the waiting time corresponding to the signal strength range is; and after the determined waiting time length, sending a detection response frame to the STA. The invention can realize the intervention of the time delay of the return of the detection response information of the AP end, improve the probability of accessing the STA to the AP with better wireless service quality during roaming, and further improve the wireless service quality and user experience of the roaming.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for sending a probe response frame.
Background
In a WLAN (Wireless Local Area network), a terminal (STA) may roam between different Access Points (APs), and the AP to which the STA roams is often determined by the STA itself.
In a wireless roaming implementation, after leaving an AP, an STA broadcasts a probe request frame; the APs receiving the probe request frame all respond, i.e. send a probe response frame to the STA; and the STA selects the AP which responds last in the access response period according to the sequence of the received detection response frames.
However, in the above wireless roaming method, the terminal may access to the AP with poor wireless service, thereby affecting the user experience.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method and an apparatus for sending a probe response frame, so as to improve the wireless service quality and user experience of an STA during roaming.
In order to solve the above problem, an embodiment of the present invention discloses a method for sending a probe response frame, which is applied to an AP, and includes:
receiving a probe request frame from a terminal STA;
when the STA needing to be responded is determined according to the detection request frame, determining the waiting time corresponding to the signal strength according to the signal strength measured when the detection request frame is received and the corresponding relation between the preset signal strength range and the waiting time, wherein the larger the average value of all the signal strengths in the signal strength range is, the longer the waiting time corresponding to the signal strength range is;
and after the determined waiting time length, sending a detection response frame to the STA.
Correspondingly, an embodiment of the present invention further provides a device for sending a probe response frame, so as to ensure implementation and application of the method, where the device for sending a probe response frame is applied to an AP, and includes:
a receiving module, configured to receive a probe request frame from a terminal STA;
a first determining module, configured to determine, when it is determined that the STA needs to be responded according to the probe request frame received by the receiving module, a waiting duration corresponding to the signal strength according to the signal strength measured when the probe request frame is received by the receiving module and a correspondence between a preset signal strength range and the waiting duration;
and the sending module is used for sending the detection response frame to the STA after the waiting time length determined by the first determining module.
In summary, in the technical solution in the embodiments of the present invention, when the AP returns the probe response frame to the STA, the AP can calculate the signal strength of the STA according to the probe request frame from the STA, determine the corresponding waiting duration, and send the probe response frame to the STA after the determined waiting duration. Therefore, intervention of time delay of the AP end returning the detection response frame is realized, the probability of accessing the STA to the AP with better wireless service quality during roaming is improved, and further the wireless service quality and the user experience are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart illustrating steps of a method for sending a probe response frame according to the present invention;
FIG. 2 is a schematic diagram of WLAN networking when the STA of the present invention roams;
fig. 3 is a block diagram of a probe response frame transmitting apparatus according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
One of the core ideas of the embodiments of the present invention is to provide a method and an apparatus for sending a probe response frame, so as to effectively improve the wireless service quality and user experience when an STA roams. The invention can be applied to the embodiment that the STA roams from the AP under the same wireless network to another AP, and particularly, when the STA moves out of the signal coverage range of the currently accessed AP, the STA selects a target AP according to the roaming decision of the STA, thereby completing the roaming by accessing the target AP. In addition, the invention can also be applied to the scenes that the STA is off-line and then on-line from a certain AP, the STA is on-line for the first time and the like, and particularly, in the process that the STA successfully accesses the target AP, the invention is mainly divided into three stages, namely: a SCAN phase (SCAN), an Authentication phase (Authentication), and an Association phase (Association). The invention mainly induces the STA to be capable of accessing the AP with better wireless service quality by interfering the response time delay of the STA in the scanning stage, thereby improving the wireless service quality and the user experience when the STA roams.
Referring to fig. 1, a flowchart illustrating steps of an embodiment of a method for sending a probe response frame according to the present invention is shown, where the method is applied to an AP, and specifically includes the following steps:
Specifically, in the scanning stage during the STA accessing the destination AP, the STA actively transmits a Probe Request frame (Probe Request frame) in a broadcast manner to wait for the AP response of the Probe Request frame to be received.
And step 102, when the STA which needs to respond is determined according to the probe request frame, determining the waiting time corresponding to the signal strength according to the signal strength measured when the probe request frame is received and the corresponding relation between the preset signal strength range and the waiting time.
Specifically, after receiving the probe request frame, the AP may determine whether to respond to the STA by:
judging whether the detection request frame carries a specified Service Set Identifier (SSID);
if not, determining that the STA needs to be responded;
if yes, judging whether the SSID carried in the detection request frame is the same as the SSID of the AP or not, if yes, determining that the STA needs to be responded, and if not, determining that the STA does not need to be responded.
That is, the STA may or may not carry the specified SSID when actively broadcasting the probe request frame. Under the condition of carrying the specified SSID, the method means that not all APs receiving the detection request frame respond, but only the APs with the same SSID as the specified SSID can respond to the detection request frame; without carrying a specified SSID, it means that all APs receiving the probe request frame respond.
In this step, the signal strength can be regarded as the signal strength of the STA, and the specific measurement process is prior art and will not be described in detail herein.
In the invention, a preset list is stored in advance on the AP side, the preset list records the corresponding relation between a plurality of preset signal strength ranges and waiting time lengths, and the larger the average value of the signal strength in the signal strength range is, the longer the waiting time length corresponding to the signal strength range is, and the number of the signal strength in each signal strength range is usually the same. Therefore, after receiving the probe request frame, the AP searches which preset signal strength range the signal strength of the STA falls into according to the correspondence, thereby determining the waiting duration corresponding to the signal strength.
And step 103, after the determined waiting time length, sending a probe response frame to the STA.
Specifically, after the determined waiting time period, the AP sends a Probe Response frame (Probe Response frame) to the STA, so that when the STA selects the AP that responds last during roaming to access, the probability of accessing the AP with better wireless service quality is higher.
In summary, in the technical solution of the embodiment of the present invention, a probe request frame from a terminal STA is received; determining the waiting time corresponding to the signal strength according to the signal strength measured when the detection request frame is received and the corresponding relation between the preset signal strength range and the waiting time; after the determined waiting time is passed, the probe response frame is sent to the STA, so that intervention on time delay of the probe response frame returned by the AP end is realized, the probability of accessing the STA to the AP with better wireless service quality during roaming is improved, and the wireless service quality and the user experience are further improved.
In a preferred embodiment of the present invention, the AP may further continue to wait for a preset time period after the determined waiting time period elapses, and then transmit a probe response frame to the STA. In the embodiment of the present invention, the preset time duration may be any time duration randomly selected from a preset time range. Specifically, a preset duration is introduced for realizing random hashing of the waiting duration.
For example, the following steps are carried out: if the distances from the AP1, the AP2, and the AP3 to the STA are very small, the difference between the signal strength values of the STA acquired by the AP1, the AP2, and the AP3 is also very small, and the signal strengths of the STA measured by the AP1, the AP2, and the AP3 may fall into the same signal strength value range, so that the waiting durations corresponding to the signal strengths of the STA determined by the AP 1-the AP3 will be the same waiting duration. In this case, the STA receives the probe response frames from the AP1, the AP2, and the AP3 at the same time.
Therefore, in order to avoid the occurrence of this phenomenon, after determining the waiting duration corresponding to the signal strength, the AP1, the AP2, and the AP3 respectively select a random duration (i.e., a preset duration) from the preset duration range, and after the waiting duration and the respective preset durations, respectively send probe response frames to the STAs, so that the waiting durations corresponding to different APs are dispersed. It should be understood by those skilled in the art that the random duration needs to be selected within a certain range (i.e., the above mentioned preset duration range), and the duration obtained by adding the maximum value in the range to the waiting duration cannot exceed the access response period of the STA.
In a preferred embodiment of the present invention, the preset list stored locally by the AP further records a plurality of preset correspondence relationships between signal strength ranges and transmission powers, and the larger the average value of the signal strengths in the signal strength ranges is, the larger the transmission power corresponding to the signal strength ranges is. Therefore, before sending the probe response frame to the STA, the AP may find out which preset signal strength range the signal strength of the STA falls into according to the corresponding relationship between the preset signal strength range and the transmission power, so as to further determine the transmission power corresponding to the signal strength, and subsequently send the probe response frame by using the determined transmission power, so that the STA can access the AP with better wireless service quality.
In a preferred embodiment of the present invention, after determining the transmission power corresponding to the signal strength of the STA, the AP may further add the transmission power to a preset transmission power to calculate a sum of the transmission power and the preset transmission power. In the embodiment of the present invention, the preset transmission power is similar to the preset duration, and similarly, a random power (that is, the preset transmission power) is randomly selected from a preset power range, the preset transmission power is added to the determined transmission power, and after the determined waiting duration or the determined waiting duration and the preset duration, the probe response frame is sent to the STA with the calculated transmission power, so as to implement random hashing of the transmission power.
In order to better understand the technical solution of the present invention, the following detailed description is made with specific examples.
Referring to fig. 2, a network architecture diagram of an embodiment of the present invention is shown. The signal coverage ranges of AP1, AP2, and AP3 are shown in fig. 2. In the embodiment of the present invention, an operator sets a preset list in each AP in advance, where the preset list includes a plurality of preset signal strength ranges and a corresponding relationship between a waiting duration and a transmission power. As shown in table 1:
TABLE 1
| Signal intensity Range (dB) | Waiting time (ns) | Launch power (dBm) |
| 56-60 | 200 | 22 |
| 50-55 | 150 | 20 |
In addition, in the embodiment of the present invention, the operator needs to preset a range of the random time length (i.e. the preset time length in the embodiment of the present invention) and a range of the random power (i.e. the preset transmitting power in the embodiment of the present invention), specifically, in the embodiment, the preset range of the random time length is: 1ns-10ns, and the preset range of random power is 0-3 dBm. The numerical values in the preset list, the random time length and the range of the random power can be set by an operator according to actual conditions, and the invention is not limited to this.
With continued reference to fig. 2, in an embodiment of the present invention, the STA is in position a before moving and accesses the wireless network through the AP 1. When the STA moves from position a to position E in fig. 2, since the STA has moved out of the signal coverage of the AP1, the STA will disconnect from the AP1 and start scanning whether there are other APs around, so as to find out a destination AP that can be accessed, i.e., broadcast a probe request frame.
Assume that AP2 and AP3 receive the probe request frame and decide to respond according to the probe request frame. Assume that the signal strength of the STA measured by the AP2 is 50 dB. The signal strength of the STA measured by the AP3 is 56 dB.
The AP2 and the AP3 query locally stored preset lists, respectively. The AP2 determines that the signal strength of the STA falls within the signal strength range of 50-55dB by querying the preset list, and the signal strength range corresponds to a latency of 150ns and a transmit power of 20 dBm. Subsequently, the AP2 will randomly select a duration within a preset duration range to add to the wait duration, and the AP2 will also randomly select a power within a random range of transmit powers to add to the transmit power. In this embodiment, if the random duration selected by the AP2 is 1ns, the final waiting duration of the AP2 is 151ns, and if the random transmit power selected by the AP2 is 0.1dBm, the final transmit power of the AP2 is 20.1 dBm. Similarly, the AP3 determines that the signal strength of the STA falls within the signal strength range of 56-60dB by querying the preset list, where the signal strength range corresponds to a waiting duration of 200ns and a transmission power of 22 dBm. The random duration selected by the AP3 is 3ns, and the final wait duration for the AP3 is 203 ns. The random power chosen by the AP3 is 0.2dBm, and the final transmit power of the AP3 is 22.2 dBm.
The AP2 will send a probe response frame to the STA at 20.1dBm transmit power after 151 ns. And the AP3 will send a probe response frame to the STA at 22.2dBm transmit power after 203 ns.
The STA receives the probe response frames transmitted from the AP2 and the AP3 in sequence, and determines a destination AP through a predetermined rule. In an embodiment of the present invention, the predetermined rule is: and determining the AP corresponding to the last received detection response frame as the target AP according to the sequence of the received detection response frames.
Therefore, in the embodiment of the present invention, the AP corresponding to the probe response frame received by the STA last is AP3, and it is determined that AP3 is the destination AP. The STA establishes a communication connection with the AP3 and performs subsequent data interaction, thereby completing roaming.
On the basis of the above embodiments, the present embodiment also provides a device for sending a probe response frame.
Referring to fig. 3, a block diagram of a structure of an embodiment of a device for sending a probe response frame according to the present invention is shown, where the device for sending a probe response frame is applied to an AP, and specifically may include:
a receiving module 31, configured to receive a probe request frame from a terminal STA.
A first determining module 32, configured to, when it is determined that the STA needs to be responded according to the probe request frame received by the receiving module 31, determine a waiting duration corresponding to the signal strength according to the signal strength measured when the receiving module 31 receives the probe request frame and a corresponding relationship between a preset signal strength range and the waiting duration, where the larger an average value of all signal strengths in the signal strength range is, the longer the waiting duration corresponding to the signal strength range is.
A sending module 43, configured to send a probe response frame to the STA after the waiting duration determined by the first determining module 32.
In a preferred embodiment of the present invention, the first determining module 32 is specifically configured to:
judging whether the detection request frame carries a specified SSID or not;
if not, determining that the STA needs to be responded;
if yes, judging whether the SSID carried in the detection request frame is the same as the SSID of the AP or not, if yes, determining that the STA needs to be responded, and if not, determining that the STA does not need to be responded.
In a preferred embodiment of the present invention, the sending module 33 may be further configured to continue to wait for a preset time period after the waiting time period determined by the first determining module 32 elapses, and then send the probe response frame to the STA.
In a preferred embodiment of the present invention, the apparatus may further include:
a second determining module (not shown in the figure), configured to determine, according to the signal strength and a preset correspondence between a signal strength range and a transmission power, a transmission power corresponding to the signal strength, where the larger an average value of all signal strengths in the signal strength range is, the larger the transmission power corresponding to the signal strength range is;
the sending module 33 is further configured to send the probe response frame using the transmission power determined by the second determining module.
In a preferred embodiment of the present invention, the apparatus may further include:
and a calculating module (not shown in the figure), configured to determine, according to the signal strength and a corresponding relationship between a preset signal strength range and a transmitting power, a transmitting power corresponding to the signal strength, and calculate a sum of the determined transmitting power and the preset transmitting power, where the larger an average value of all signal strengths in the signal strength range is, the larger the transmitting power corresponding to the signal strength range is.
The sending module 33 is further configured to send the probe response frame using the transmission power calculated by the calculating module.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
In summary, in the technical solution of the present invention, a probe request frame from a terminal STA is received through an AP; when the STA needs to be responded is determined according to the detection request frame, determining the waiting time corresponding to the signal strength according to the signal strength measured when the detection request frame is received and the corresponding relation between the preset signal strength range and the waiting time; after the determined waiting time is passed, the probe response frame is sent to the STA, so that the intervention of the time delay of the probe response frame returned by the AP end is realized, the probability of accessing the STA to the AP with better wireless service quality during roaming is improved, and in addition, the random time and the random power are introduced, so that the phenomenon that the STA receives a plurality of probe response frames at the same time is avoided, and the roaming wireless service quality and the user experience are improved.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above method and apparatus for sending a probe response frame provided by the present invention are introduced in detail, and a specific example is applied in this document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A method for sending a probe response frame, applied to an Access Point (AP), is characterized by comprising:
receiving a probe request frame from a terminal STA;
when the STA needs to be responded to is determined according to the detection request frame, determining the waiting time corresponding to the signal strength according to the signal strength measured when the detection request frame is received and the corresponding relation between the preset signal strength range and the waiting time, wherein the larger the average value of all the signal strengths in the signal strength range is, the longer the waiting time corresponding to the signal strength range is;
and after the determined waiting time length, continuously waiting for a preset time length, and then sending a detection response frame to the STA, wherein the preset time length is a random time length selected from a preset time length range, and the time length obtained by adding the maximum value in the preset time length range and the waiting time length does not exceed the access response period of the STA.
2. The method of claim 1, wherein the determination that the STA needs to respond is made by:
judging whether the detection request frame carries a specified Service Set Identifier (SSID);
if not, determining that the STA needs to be responded;
if yes, judging whether the SSID carried in the detection request frame is the same as the SSID of the AP or not, if yes, determining that the STA needs to be responded, and if not, determining that the STA does not need to be responded.
3. The method of claim 1, wherein prior to transmitting a probe response frame to the STA, the method further comprises:
determining the transmitting power corresponding to the signal intensity according to the signal intensity and the corresponding relation between a preset signal intensity range and the transmitting power, wherein the larger the average value of all the signal intensities in the signal intensity range is, the larger the transmitting power corresponding to the signal intensity range is;
sending a probe response frame to the STA, specifically including:
and transmitting the probe response frame by using the determined transmission power.
4. The method of claim 1, wherein prior to transmitting a probe response frame to the STA, the method further comprises:
determining the transmitting power corresponding to the signal strength according to the signal strength and the corresponding relation between a preset signal strength range and the transmitting power, and calculating the sum of the determined transmitting power and the preset transmitting power, wherein the larger the average value of all the signal strengths in the signal strength range is, the larger the transmitting power corresponding to the signal strength range is, and the preset transmitting power is a random power randomly selected from the preset power range;
sending a probe response frame to the STA, specifically including:
the probe response frame is transmitted using the calculated transmit power.
5. An apparatus for transmitting a probe response frame, applied to an access point AP, the apparatus comprising:
a receiving module, configured to receive a probe request frame from a terminal STA;
a first determining module, configured to determine, when it is determined that the STA needs to be responded according to the probe request frame received by the receiving module, a waiting duration corresponding to the signal strength according to the signal strength measured when the probe request frame is received by the receiving module and a corresponding relationship between a preset signal strength range and the waiting duration, where the larger an average value of all signal strengths in the signal strength range is, the longer the waiting duration corresponding to the signal strength range is;
and the sending module is used for continuing to wait for a preset time length after the waiting time length determined by the first determining module and then sending a detection response frame to the STA, wherein the preset time length is a random time length selected from a preset time length range, and the time length obtained by adding the maximum value in the preset time length range and the waiting time length does not exceed the access response period of the STA.
6. The apparatus of claim 5, wherein the first determining module is specifically configured to:
judging whether the detection request frame carries a specified Service Set Identifier (SSID);
if not, determining that the STA needs to be responded;
if yes, judging whether the SSID carried in the detection request frame is the same as the SSID of the AP or not, if yes, determining that the STA needs to be responded, and if not, determining that the STA does not need to be responded.
7. The apparatus of claim 5, further comprising:
the second determining module is used for determining the transmitting power corresponding to the signal strength according to the signal strength and the corresponding relation between the preset signal strength range and the transmitting power, wherein the larger the average value of all the signal strengths in the signal strength range is, the larger the transmitting power corresponding to the signal strength range is;
the sending module is further configured to send a probe response frame using the transmission power determined by the second determining module.
8. The apparatus of claim 5, further comprising:
the calculation module is used for determining the transmitting power corresponding to the signal strength according to the signal strength and the corresponding relation between the preset signal strength range and the transmitting power, and calculating the sum of the determined transmitting power and the preset transmitting power, wherein the larger the average value of all the signal strengths in the signal strength range is, the larger the transmitting power corresponding to the signal strength range is, and the preset transmitting power is a random power randomly selected from the preset power range;
the sending module is further configured to send a probe response frame using the transmission power calculated by the calculating module.
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| CN107241763B (en) * | 2016-03-29 | 2020-07-07 | 华为技术有限公司 | Probe response method and device |
| US11122502B2 (en) | 2017-03-07 | 2021-09-14 | Aruba Networks, Inc. | Access point fit |
| CN109246798A (en) * | 2018-10-16 | 2019-01-18 | 杭州迪普科技股份有限公司 | The processing method and processing device of terminal access in a kind of WLAN |
| CN110995665B (en) | 2019-11-15 | 2023-04-18 | 北京小米移动软件有限公司 | Network distribution method and device, electronic equipment and storage medium |
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