CN104104478B - The sending method and device of probing response frame in a kind of WLAN - Google Patents
The sending method and device of probing response frame in a kind of WLAN Download PDFInfo
- Publication number
- CN104104478B CN104104478B CN201310125986.0A CN201310125986A CN104104478B CN 104104478 B CN104104478 B CN 104104478B CN 201310125986 A CN201310125986 A CN 201310125986A CN 104104478 B CN104104478 B CN 104104478B
- Authority
- CN
- China
- Prior art keywords
- probe
- frames
- sta
- request frames
- probe request
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application discloses the sending method and device of probing response frame in a kind of WLAN, the method includes：The probe requests thereby Probe Request frames that receiving workstation STA is sent, record receive the first time of the Probe Request frames；If having received Probe Request frames identical with the type of Probe Request frames before the first time, determine that the last time receives the second time of Probe Request frames identical with the type of Probe Request frames；Calculate the time difference of the first time and second time；When the time difference is more than the first pre-determined threshold, probe response Probe Response frames are sent to the STA.Compared to the prior art, the sending method and device of probing response frame in WLAN proposed by the present invention, the quantity for sending Probe Response frames can be efficiently reduced, the required overhead of Probe Response frames is sent so as to which wlan network equipment is greatly reduced.
Description
Technical field
This application involves mobile communication technology, more particularly to the sending method and device of probing response frame in a kind of WLAN.
Background technology
With WLAN（Wireless Local Area Network, WLAN）The fast development of technology, WLAN's
Construction scale is also increasing, and as the extension to conventional wired networks, WLAN is capable of providing a kind of wireless access solution of high speed
Certainly scheme, it has the characteristics that removable, high flexible, expansible and installation is simple, thus is widely used, operator
Start a large amount of deployment WLAN.
There are following three kinds of frame types in existing WLAN：Management frame, control frame and data frame.Wherein, management frame master
Including：Detect Probe frames and Beacon frames；Control frame includes mainly：RTS frames, CTS frames and ACK frames；Data frame mainly wraps
It includes：Data frames.Further, Probe frames can also include：Probe requests thereby Probe Request frames and probe response Probe
Response frames.In three of the above frame type, control frame and data frame are the frame type of event triggering, i.e. access point AP or
Work station STA just can transmission control frame and data frame when having data transfer demands；And the frame type that management frame is periodic triggers,
That is AP or STA obtains the connection configuration information of WLAN by periodically sending management frame.
In the implementation of the present invention, inventor has found that at least there are the following problems in the prior art：
With the increase of WLAN user quantity, AP quantity and STA quantity, STA sends the quantity of Probe Request frames
Also it will can be dramatically increased, since in existing WLAN, wlan network equipment is receiving each of STA transmissions
After Probe Request frames, Probe Response frames, therefore, WLAN can be all sent for each Probe Request frames
The quantity that the network equipment sends Probe Response frames can be continuously increased, to which wlan network equipment sends Probe
The required overhead of Response frames can also increase considerably.
Invention content
In view of this, the main purpose of the present invention is to provide a kind of sending method of probing response frame in WLAN, it can
The quantity for sending Probe Response frames is efficiently reduced, Probe is sent so as to which wlan network equipment is greatly reduced
The required overhead of Response frames.
Another object of the present invention is to provide a kind of sending devices of probing response frame in WLAN, can efficiently reduce
The quantity for sending Probe Response frames sends Probe Response frames so as to which wlan network equipment is greatly reduced
Required overhead.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
The sending method of probing response frame in a kind of WLAN, the method includes：
The probe requests thereby Probe Request frames that receiving workstation STA is sent, record receive the Probe
The first time of Request frames；
If having received Probe identical with the type of Probe Request frames before the first time
Request frames determine that the last time receives Probe Request frames identical with the type of Probe Request frames
The second time；
Calculate the time difference of the first time and second time；
When the time difference is more than the first pre-determined threshold, probe response Probe Response are sent to the STA
Frame.
The sending device of probing response frame in a kind of WLAN, which is characterized in that receiving unit, judging unit, determination unit,
Computing unit and transmission unit；
The receiving unit, for the probe requests thereby Probe Request frames that receiving workstation STA is sent, record receives
To the first time of the Probe Request frames, the first time is sent to the judging unit and the calculating is single
Member；
The judging unit, for judging whether had received before the first time and the Probe
The identical Probe Request frames of type of Request frames, if so, notifying the determination unit；
The determination unit, for determining that it is identical with the type of Probe Request frames that the last time receives
Second time is sent to the computing unit by second time of Probe Request frames；
The computing unit, the time difference for calculating the first time and second time, by the time
Difference is sent to the judging unit；
The judging unit is additionally operable to judge whether the time difference is more than the first pre-determined threshold, if so, described in notice
Transmission unit；
The transmission unit, for sending probe response Probe Response frames to the STA.
As it can be seen that technical solution using the present invention, after the Probe Request frames for receiving STA transmissions, record connects
The first time of Probe Request frames is received, if had received before the first time and the Probe Request frames
The identical Probe Request frames of type, it is identical as the type of Probe Request frames to determine that the last time receives
Probe Request frames the second time, only when the difference of first time and the second time are more than the first pre-determined threshold,
Probe Response frames can be just sent to STA, rather than picture is in the prior art, in each Probe for receiving STA transmissions
After Request frames, all Probe Response frames can be sent to STA for each Probe Request frames.Therefore, and it is existing
There is technology to compare, the sending method and device of probing response frame, can efficiently reduce WLAN nets in WLAN proposed by the present invention
Network equipment sends the quantity of Probe Response frames, so as to be greatly reduced required for sending Probe Response frames
Overhead.
Description of the drawings
Fig. 1 is the implementation flow chart of the sending method of probing response frame in WLAN in the present invention.
Fig. 2 is a kind of flow chart of implementation method of step 106 in the present invention.
Fig. 3 is the structural schematic diagram of the sending device of probing response frame in WLAN in the present invention.
Specific implementation mode
For problems of the prior art, a kind of hair of probing response frame in improved WLAN is proposed in the present invention
Scheme is sent, the quantity that wlan network equipment sends Probe Response frames can be efficiently reduced, so as to significantly subtract
The required overhead of Probe Response frames is sent less.
To keep technical scheme of the present invention clearer, clear, develop simultaneously embodiment referring to the drawings, to of the present invention
Scheme is described in further detail.
Fig. 1 is the implementation flow chart of the sending method of probing response frame in WLAN in the present invention.As shown in Figure 1, include with
Lower step：
Step 101：The Probe Request frames that STA is sent are received, record receives the first of Probe Request frames
Time.
In this step, wlan network equipment receives the Probe Request frames that STA is sent, and record receives Probe
The first time of Request frames.
In a specific embodiment of the present invention, the wlan network equipment can be AP, can also be access controller AC,
It does not limit herein.
Step 102：It is identical as the type of Probe Request frames whether judgement has received before the first time
Probe Request frames, if so, execute step 103；Otherwise, step 106 is executed.
In this step, whether wlan network equipment judgement has received and the Probe before the first time
The identical Probe Request frames of type of Request frames, when having received before the first time and the Probe
When the identical Probe Request frames of the types of Request frames, step 103 is executed；Otherwise, step 106 is executed.
For example, when wlan network equipment is initially received the Probe Request frames of STA transmissions（It is denoted as：Probe
Request frames 1）When, wlan network equipment records the first time for receiving Probe Request frames 1, at this time at the first time
It does not receive Probe Request frames identical with the type of Probe Request frames 1 before, executes step 106.Herein it
Afterwards, it is assumed that wlan network equipment receives the Probe Request identical with the type of Probe Request frames 1 of STA transmissions
Frame（It is denoted as：Probe Request frames 2）, wlan network equipment, which records, receives first times of Probe Request frames 2, this
When Probe identical with the type of Probe Request frames 2 has been received before receiving Probe Request frames 2
Request frames 1 execute step 103.
Include multiple fields in Probe Request frames in the prior art, such as：Frame controls Frame Control, source
MAC Address, target MAC (Media Access Control) address, service set identifier SSID, basic service set identifier BSSID etc..In the specific reality of the present invention
It applies in example, it is identical as the type of Probe Request frames to include：With the source MAC in the Probe Request frames
Location, target MAC (Media Access Control) address and SSID are identical.For example, the class of the type of Probe Request frames 2 and Probe Request frames 1
Type is identical refer to Probe Request frames 2 source MAC, target MAC (Media Access Control) address and SSID respectively with Probe Request
The source MAC of frame 1, target MAC (Media Access Control) address and SSID are identical.
Step 103：Determine that the last time receives Probe identical with the type of Probe Request frames
Second time of Request frames.
In this step, identical with the type of Probe Request frames when having received before the first time
When Probe Request frames, wlan network equipment determines that the last time receives the type phase with the Probe Request frames
Second time of same Probe Request frames.For example, it is assumed that wlan network equipment has received before the first time and institute
The identical three Probe Request frames of type of Probe Request frames are stated, respectively：Probe Request frames 1,
Probe Request frames 2 and Probe Request frames 3, in this step, the determination of wlan network equipment receive Probe
Second time of Request frames 3.
Step 104：Calculate the time difference at the first time with the second time.
In this step, wlan network equipment calculates the time difference with the second time at the first time.
Step 105：Judge whether time difference is more than the first pre-determined threshold, if so, executing step 106；Otherwise, step is executed
Rapid 107.
In this step, wlan network equipment judges whether time difference is more than the first pre-determined threshold, when time difference is big
When the first pre-determined threshold, step 106 is executed；Otherwise, step 107 is executed.
Preferably, first pre-determined threshold can be：10 seconds.For example, when the time difference of first time and the second time
When value is more than 10 seconds, step 106 is executed；Otherwise, step 107 is executed.
Step 106：Probe Response frames are sent to STA.
In this step, wlan network equipment sends Probe Response frames to STA.
Step 107：Terminate the transmission flow of probing response frame in WLAN.
In this step, when time difference is less than or equal to the first pre-determined threshold, in wlan network device end WLAN
The transmission flow of probing response frame.
In a specific embodiment of the present invention, step 106 can be there are many mode realization method.Fig. 2 is to be walked in the present invention
A kind of flow chart of rapid 106 implementation method.As shown in Fig. 2, including the following steps：
Step 201：Judge whether the type of the SSID in Probe Request frames is pre-set specified type；If
It is to execute step 202；Otherwise, step 203 is executed.
In this step, wlan network equipment judges whether the type of the SSID in Probe Request frames is to set in advance
The specified type set executes step 202 when the type of the SSID in Probe Request frames is specified type；Otherwise, it holds
Row step 203.
In a specific embodiment of the present invention, STA establishes and maintains to connect with wlan network equipment using SSID.The finger
It refers to that STA notifies which SSID of wlan network equipment utilization and WLAN nets by the SSID in Probe Request frames to determine type
Connection is established and maintained to network equipment.For example, when the SSID in Probe Request frames is " 01 ", the Probe Request
The type of SSID in frame is specified type, i.e. STA notifies wlan network equipment profit by the SSID in Probe Request frames
It is established and is maintained with SSID " 01 " and wlan network equipment to connect, execute step 202；When the SSID of Probe Request frames is
When " 00 ", the type of the SSID in the Probe Request frames is not specified type, at this time STA not over
SSID notice which SSID of wlan network equipment utilization in ProbeRequest frames is established with wlan network equipment and the company of maintenance
It connects, executes step 203.
Step 202：Probe Response frames corresponding with the SSID of specified type are sent to STA.
In this step, wlan network equipment sends Probe corresponding with the SSID of specified type to STA
Response frames.For example, it is assumed that the SSID of Probe Request frames is " 01 ", in this step, wlan network equipment is to STA
Send Probe Response frames corresponding with SSID " 01 ".
Step 203：According to the source MAC in Probe Request frames, in the associated MAC Address pre-saved
In searched；If finding source MAC in associated MAC Address, step 204 is executed；Otherwise, step 206 is executed.
In a specific embodiment of the present invention, wlan network equipment needs pre-save associated MAC Address, in this step
In rapid, wlan network equipment is according to the source MAC in Probe Request frames, in the associated MAC Address pre-saved
In searched, when finding source MAC in associated MAC Address, execute step 204；Otherwise, step is executed
206。
Step 204：According to the correspondence of the associated MAC Address that pre-saves and the SSID having connected, determine with
The corresponding SSID having connected of source MAC.
In a specific embodiment of the present invention, wlan network equipment also need to pre-save associated MAC Address with
The correspondence of the SSID of connection.In this step, wlan network equipment according to the associated MAC Address that pre-saves with
The correspondence of the SSID of connection determines the SSID that has connected corresponding with source MAC.
Step 205：Probe Response frames corresponding with the SSID having connected are sent to STA.
In this step, wlan network equipment sends Probe Response corresponding with the SSID having connected to STA
Frame.For example, it is assumed that wlan network equipment determines that the SSID that has connected corresponding with source MAC is " 01 ", in this step,
Wlan network equipment sends Probe Response frames corresponding with SSID " 01 " to STA.
Step 206：Send Probe Response frames corresponding with each SSID connected in advance respectively to STA.
In this step, if wlan network equipment is associated according to the source MAC in Probe Request frames
Failure is searched in MAC Address, wlan network equipment sends Probe corresponding with each SSID connected in advance to STA respectively
Response frames.For example, it is assumed that the SSID that wlan network equipment connects in advance is " 01 ", " 10 " and " 11 ", in this step,
Wlan network equipment sends Probe Response corresponding with SSID " 01 ", SSID " 10 " and SSID " 11 " to STA respectively
Frame.
According to the description above it is found that through the above steps 201~206, wlan network equipment may be implemented and sent out to STA
Probe Response frames are sent, due in the inventive solutions, when the type of the SSID of Probe Request frames is pre-
When the specified type being first arranged, Probe Response frames corresponding with the SSID of specified type are sent to STA；Work as Probe
When the type of the SSID of Request frames is not specified type, according further to the source MAC in Probe Request frames
It is searched in the associated MAC Address pre-saved, when finding source MAC in associated MAC Address,
According to the correspondence of the associated MAC Address pre-saved and the SSID having connected, determination is corresponding with source MAC
The SSID having connected sends Probe Response frames corresponding with the SSID having connected to STA.Rather than as the prior art
In, after each Probe Request frames for receiving STA transmissions, it can all be sent out to STA for each ProbeRequest frames
Send Probe Response frames.Therefore, compared to the prior art, in WLAN proposed by the present invention probing response frame sending method
And device, the quantity for sending Probe Response frames can be efficiently reduced, is set so as to which wlan network is greatly reduced
Preparation send Probe Response frames required overhead.
Preferably, in a specific embodiment of the present invention, when the time difference of first time and the second time are more than first
Can also include step as described below before sending Probe Response frames to STA when pre-determined threshold：
Step 111：The measurement of received signal strength indicator RSSI is carried out to Probe Request frames.
Wlan network equipment carries out Probe Request frames the measurement of RSSI in this step.Specifically, wlan network
The measurement that common measurement method carries out Probe Request frames RSSI may be used in equipment, does not limit herein.
Step 112：Judge whether the rssi measurement value of Probe Request frames is more than the second predetermined threshold value；If so, holding
Row step 113；Otherwise, step 114 is executed.
Step 113：Probe Response frames are sent to STA.
In this step, when the rssi measurement value of Probe Request frames is more than the second predetermined threshold value, wlan network
Equipment sends Probe Response frames to STA.
Step 114：Terminate the transmission flow of probing response frame in WLAN.
In this step, when the rssi measurement value of Probe Request frames is less than or equal to the second predetermined threshold value,
The transmission flow of probing response frame in wlan network device end WLAN.
According to the description above it is found that through the above steps 111~114, by carrying out RSSI to Probe Request
Measurement, to further determine whether to STA send Probe Response frames, when Probe Request frames RSSI survey
When magnitude is more than the second predetermined threshold value, Probe Response frames are sent to STA；Otherwise, terminate probing response frame in WLAN
Transmission flow.Compared to the prior art, in WLAN proposed by the present invention probing response frame sending method, can further have
Effect ground reduces the quantity for sending Probe Response frames, and Probe is sent so as to which wlan network equipment is greatly reduced
The required overhead of Response frames.
It, can be with after sending Probe Response frames to STA preferably, in a specific embodiment of the present invention
Including step as described below：
Step 121：Judge that the reception for whether receiving the Probe Response frames of STA transmissions within a preset period of time is true
ACK message is recognized, if so, executing step 122；Otherwise, step 123 is executed.
In this step, wlan network equipment judges whether receive the Probe of STA transmissions within a preset period of time
The ACK message of Response frames, when wlan network equipment receives the Probe Response of STA transmissions within a preset period of time
When the ACK message of frame, step 122 is executed；Otherwise, step 123 is executed.
Step 122：Terminate the transmission flow of probing response frame in WLAN.
In this step, when wlan network equipment receives the Probe Response of STA transmissions within a preset period of time
When the ACK message of frame, the transmission flow of probing response frame in wlan network device end WLAN.
Step 123：Probe Response frames are retransmitted to STA.
In this step, when wlan network equipment is not received by the Probe of STA transmissions within a preset period of time
When the ACK message of Response frames, wlan network equipment retransmits Probe Response frames to STA.
Step 124：Count the sending times that Probe Response frames are retransmitted to STA.
In this step, wlan network device statistics retransmit the sending times of Probe Response frames to STA.
Step 125：Judge whether sending times are less than or equal to maximum preset sending times, if so, executing step 121；
Otherwise, step 122 is executed.
In this step, wlan network equipment judges whether sending times are less than or equal to maximum preset sending times, when
When sending times are less than or equal to maximum preset sending times, step 121 is executed；Otherwise, step 122 is executed.
Preferably, the maximum preset sending times can be：7 times.
The sending method of probing response frame in WLAN proposed by the present invention, in the Probe Request for receiving STA transmissions
After frame, record receives first times of Probe Request frames, if having received before the first time with it is described
The identical Probe Request frames of type of Probe Request frames, determine that the last time receives and the Probe
Second time of the identical Probe Request frames of type of Request frames, the only difference when first time and the second time
When more than the first pre-determined threshold, Probe Response frames can be just sent to STA, rather than as in the prior art, receiving
After each Probe Request frames that STA is sent, all Probe can be sent to STA for each Probe Request frames
Response frames.Therefore, compared to the prior art, in WLAN proposed by the present invention probing response frame sending method, Neng Gouyou
Effect ground reduces the quantity that wlan network equipment sends Probe Response frames, and Probe is sent so as to be greatly reduced
The required overhead of Response frames.
Fig. 3 is the structural schematic diagram of the sending device of probing response frame in WLAN in the present invention.As shown in figure 3, including：It connects
Receive unit 301, judging unit 302, determination unit 303, computing unit 304 and transmission unit 305；
The receiving unit 301, for the probe requests thereby Probe Request frames that receiving workstation STA is sent, record connects
The first time is sent to the judging unit 302 and the meter by the first time for receiving the Probe Request frames
Calculate unit 304；
The judging unit 302, for judging whether had received before the first time and the Probe
The identical Probe Request frames of type of Request frames, if so, notifying the determination unit 303；
The determination unit 303, for determining that it is identical as the type of Probe Request frames that the last time receives
Probe Request frames second time, second time is sent to the computing unit 304；
The computing unit 304, the time difference for calculating the first time and second time, when will be described
Between difference be sent to the judging unit 302；
The judging unit 302 is additionally operable to judge whether the time difference is more than the first pre-determined threshold, if so, notice
The transmission unit 305；
The transmission unit 305, for sending probe response Probe Response frames to the STA.
Further, the judging unit 302, if be additionally operable to not receive before the first time with it is described
The identical Probe Request frames of type of Probe Request frames, notify the transmission unit 305；
The transmission unit 305, for sending the Probe Response frames to the STA.
Further, identical as the type of Probe Request frames to include：
With source MAC, target MAC (Media Access Control) address and the service set identifier SSID phases in the Probe Request frames
Together.
Further, the transmission unit 305 includes：Judgment sub-unit 3051 and transmission sub-unit 3052；
The judgment sub-unit 3051, for judging whether the type of the SSID in the Probe Request frames is pre-
The specified type being first arranged, if so, the SSID of the specified type is sent to the transmission sub-unit 3052；
The transmission sub-unit 3052 is specifically used for sending to the STA corresponding with the SSID of the specified type
Probe Response frames.
Further, the transmission unit 305 further includes：Search subelement 3053；
The judgment sub-unit 3051 is additionally operable to when the type of the SSID of the Probe Request frames not be the finger
When determining type, the source MAC in the Probe Request frames is sent to the lookup subelement 3053；
The lookup subelement 3053, for being pre-saved according to the source MAC in the Probe Request frames
Associated MAC Address in searched, when finding the source MAC in the associated MAC Address, root
According to the correspondence of the associated MAC Address pre-saved and the SSID having connected, determination is corresponding with the source MAC
The SSID having connected, the SSID having connected is sent to the transmission sub-unit 3052；
The transmission sub-unit 3052 is additionally operable to send Probe corresponding with the SSID having connected to the STA
Response frames.
Further, the lookup subelement 3053, if be additionally operable to according to the source in the Probe Request frames
MAC Address searches failure in the associated MAC Address, and sending one to the transmission sub-unit 3052 sends instruction；
The transmission sub-unit 3052 is additionally operable to after receiving transmission instruction, is sent respectively to the STA and
The corresponding Probe Response frames of each SSID connected in advance.
Further, the judging unit 302 is additionally operable to carry out received signal strength to the Probe Request frames
The measurement for indicating RSSI, when the rssi measurement value of the Probe Request frames is more than the second predetermined threshold value, described in notice
Transmission unit 305；
The transmission unit 305, for sending the Probe Response frames to the STA.
Further, whether the judging unit 302 is additionally operable to judge to be not received by within a preset period of time described
The reception that STA sends the Probe Response frames confirms ACK message, if so, sending a weight to the transmission unit 305
Send instructions；
The transmission unit 305 is additionally operable to after receiving the reissue commands, described in STA retransmissions
Probe Response frames send a decision instruction to the judging unit 302；
The judging unit 302 retransmits institute for after receiving the decision instruction, counting to the STA
The sending times for stating Probe Response frames judge when the sending times are less than or equal to maximum preset sending times
The ACK message that the STA is sent whether is not received by the preset time period.
The sending device of probing response frame in WLAN proposed by the present invention, in the Probe Request for receiving STA transmissions
After frame, record receives first times of Probe Request frames, if having received before the first time with it is described
The identical Probe Request frames of type of Probe Request frames, determine that the last time receives and the Probe
Second time of the identical Probe Request frames of type of Request frames, the only difference when first time and the second time
When more than the first pre-determined threshold, Probe Response frames can be just sent to STA, rather than as in the prior art, receiving
After each Probe Request frames that STA is sent, all Probe can be sent to STA for each Probe Request frames
Response frames.Therefore, compared to the prior art, in WLAN proposed by the present invention probing response frame sending device, Neng Gouyou
Effect ground reduces the quantity for sending Probe Response frames, and Probe is sent so as to which wlan network equipment is greatly reduced
The required overhead of Response frames.
The specific workflow of Fig. 3 shown device embodiments please refers to the respective description in embodiment of the method shown in Fig. 1, no
It repeats again.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (14)
1. the sending method of probing response frame in a kind of WLAN, which is characterized in that including：
The probe requests thereby Probe Request frames that receiving workstation STA is sent, record receive the Probe Request frames
First time；
If having received Probe identical with the type of Probe Request frames before the first time
Request frames determine that the last time receives Probe Request frames identical with the type of Probe Request frames
The second time；
Calculate the time difference of the first time and second time；
When the time difference is more than the first pre-determined threshold, probe response Probe Response frames are sent to the STA；
When the type of the SSID in the Probe Request frames is not the specified type, according to the Probe
Source MAC in Request frames is searched in the associated MAC Address pre-saved；The specified type refers to
The STA notifies wlan network equipment to establish and maintain the SSID types of connection by the Probe Request frames；
When finding the source MAC in the associated MAC Address, according to the associated MAC pre-saved
The correspondence of address and the SSID having connected determines the SSID that has connected corresponding with the source MAC；
Probe Response frames corresponding with the SSID having connected are sent to the STA.
2. according to the method described in claim 1, it is characterized in that, this method still further comprises：
If not receiving Probe identical with the type of Probe Request frames before the first time
Request frames send the Probe Response frames to the STA.
3. method according to claim 1 or 2, which is characterized in that the type phase with the Probe Request frames
It is same to include：
With in the Probe Request frames source MAC, target MAC (Media Access Control) address and service set identifier SSID it is identical.
4. according to the method described in claim 1, it is characterized in that, described send Probe Response frame packets to the STA
It includes：
When the type of the SSID in the Probe Request frames be pre-set specified type when, to the STA send with
The corresponding Probe Response frames of SSID of specified type.
5. according to the method described in claim 1, it is characterized in that, this method still further comprises：
If failure is searched in the associated MAC Address according to the source MAC in the Probe Request frames,
Send Probe Response frames corresponding with each SSID connected in advance respectively to the STA.
6. according to the method described in claim 1, it is characterized in that, when the time difference be more than the first pre-determined threshold when,
Before sending Probe Response frames to the STA, this method still further comprises：
The measurement of received signal strength indicator RSSI is carried out to the Probe Request frames；
When the rssi measurement value of the Probe Request frames is more than the second predetermined threshold value, described in STA transmissions
Probe Response frames.
7. according to the method described in claim 1, it is characterized in that, sending Probe Response frames to the STA described
Later, this method still further comprises：
A, when the reception for being not received by the Probe Response frames that the STA is sent within a preset period of time confirms
When ACK message, the Probe Response frames are retransmitted to the STA；
B, the sending times that the Probe Response frames are retransmitted to the STA are counted；
C, when the sending times are less than or equal to maximum preset sending times, A is returned to step.
8. the sending device of probing response frame in a kind of WLAN, which is characterized in that including：Receiving unit, determines list at judging unit
Member, computing unit and transmission unit；
The receiving unit, for the probe requests thereby Probe Request frames that receiving workstation STA is sent, record receives institute
The first time is sent to the judging unit and the computing unit by the first time for stating Probe Request frames；
The judging unit, for judging whether had received before the first time and the Probe Request frames
The identical Probe Request frames of type, if so, notifying the determination unit；
The determination unit, for determining that the last time receives Probe identical with the type of Probe Request frames
Second time is sent to the computing unit by the second time of Request frames；
The computing unit, the time difference for calculating the first time and second time, by the time difference
It is sent to the judging unit；
The judging unit is additionally operable to judge whether the time difference is more than the first pre-determined threshold, if so, notifying the transmission
Unit；
The transmission unit, for sending probe response Probe Response frames to the STA；
The transmission unit further includes：Search subelement；
The judgment sub-unit is additionally operable to when the type of the SSID of the Probe Request frames is not the specified type,
Source MAC in the Probe Request frames is sent to the lookup subelement；The specified type refers to described
STA notifies wlan network equipment to establish and maintain the SSID types of connection by the Probe Request frames；Lookup
Unit, for according to the source MAC in the Probe Request frames in the associated MAC Address pre-saved into
Row is searched, associated according to what is pre-saved when finding the source MAC in the associated MAC Address
The correspondence of MAC Address and the SSID having connected determines the SSID that has connected corresponding with the source MAC, by institute
It states the SSID having connected and is sent to the transmission sub-unit；
The transmission sub-unit is additionally operable to send Probe corresponding with the SSID having connected to the STA
Response frames.
9. device according to claim 8, which is characterized in that the judging unit, if be additionally operable at described first
Between before do not receive Probe Request frames identical with the type of Probe Request frames, notify transmissions singly
Member；
The transmission unit, for sending the Probe Response frames to the STA.
10. device according to claim 8 or claim 9, which is characterized in that the type with the Probe Request frames
It is identical to include：
With in the Probe Request frames source MAC, target MAC (Media Access Control) address and service set identifier SSID it is identical.
11. device according to claim 8, which is characterized in that the transmission unit includes：Judgment sub-unit and transmission
Unit；
The judgment sub-unit, for judging whether the type of the SSID in the Probe Request frames is pre-set
Specified type, if so, the SSID of the specified type is sent to the transmission sub-unit；
The transmission sub-unit is specifically used for sending Probe corresponding with the SSID of the specified type to the STA
Response frames.
12. device according to claim 8, which is characterized in that the lookup subelement, if be additionally operable to according to described
Source MAC in Probe Request frames searches failure in the associated MAC Address, to the transmission sub-unit
It sends one and sends instruction；
The transmission sub-unit is additionally operable to after receiving the transmission instruction, sends to the STA and connect in advance respectively
The corresponding Probe Response frames of each SSID.
13. device according to claim 8, which is characterized in that the judging unit is additionally operable to the Probe
Request frames carry out the measurement of received signal strength indicator RSSI, when the rssi measurement value of the Probe Request frames is more than
When the second predetermined threshold value, the transmission unit is notified；
The transmission unit, for sending the Probe Response frames to the STA.
14. device according to claim 8, which is characterized in that the judging unit is additionally operable to judge in preset time period
It inside whether is not received by the reception confirmation ACK message that the STA sends the Probe Response frames, if so, to described
Transmission unit sends a reissue commands；
The transmission unit is additionally operable to after receiving the reissue commands, and the Probe is retransmitted to the STA
Response frames send a decision instruction to the judging unit；
The judging unit retransmits the Probe for after receiving the decision instruction, counting to the STA
The sending times of Response frames judge when the sending times are less than or equal to maximum preset sending times described pre-
If whether being not received by the ACK message that the STA is sent in the period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125986.0A CN104104478B (en) | 2013-04-12 | 2013-04-12 | The sending method and device of probing response frame in a kind of WLAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125986.0A CN104104478B (en) | 2013-04-12 | 2013-04-12 | The sending method and device of probing response frame in a kind of WLAN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104104478A CN104104478A (en) | 2014-10-15 |
| CN104104478B true CN104104478B (en) | 2018-07-27 |
Family
ID=51672311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310125986.0A Active CN104104478B (en) | 2013-04-12 | 2013-04-12 | The sending method and device of probing response frame in a kind of WLAN |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104104478B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105636229A (en) * | 2014-11-07 | 2016-06-01 | 中兴通讯股份有限公司 | Downlink message processing/controlling method and device |
| CN111213407B (en) * | 2017-09-16 | 2022-04-05 | 艾锐势有限责任公司 | Apparatus and method for selective probe response suppression based on probe history |
| 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 |
| CN108966163A (en) * | 2018-06-22 | 2018-12-07 | 上海意视信息科技有限公司 | A kind of WIFI probe device, data collection system and method |
| WO2023092364A1 (en) * | 2021-11-24 | 2023-06-01 | Oppo广东移动通信有限公司 | Wireless communication method and device |
| CN114302386B (en) * | 2021-12-24 | 2023-06-09 | 深圳创维数字技术有限公司 | Wireless network connection method, device, access point and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286948A (en) * | 2008-05-30 | 2008-10-15 | 杭州华三通信技术有限公司 | Access authority control method and wireless access equipment |
| CN101388841A (en) * | 2008-10-30 | 2009-03-18 | 杭州华三通信技术有限公司 | Probing response frame sending method and apparatus |
| CN102695243A (en) * | 2012-06-15 | 2012-09-26 | 宇龙计算机通信科技(深圳)有限公司 | Initial link setup communication device and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321131B (en) * | 2008-07-22 | 2010-10-27 | 杭州华三通信技术有限公司 | Method for transmitting detection response message when scanning wireless network, and wireless access point |
| CN101534540B (en) * | 2009-04-20 | 2011-06-29 | 杭州华三通信技术有限公司 | A response method and device of explore frames in the wireless local area network |
| CN102843682B (en) * | 2012-08-20 | 2015-03-18 | 中国联合网络通信集团有限公司 | Access point authorizing method, device and system |
-
2013
- 2013-04-12 CN CN201310125986.0A patent/CN104104478B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286948A (en) * | 2008-05-30 | 2008-10-15 | 杭州华三通信技术有限公司 | Access authority control method and wireless access equipment |
| CN101388841A (en) * | 2008-10-30 | 2009-03-18 | 杭州华三通信技术有限公司 | Probing response frame sending method and apparatus |
| CN102695243A (en) * | 2012-06-15 | 2012-09-26 | 宇龙计算机通信科技(深圳)有限公司 | Initial link setup communication device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104104478A (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104104478B (en) | The sending method and device of probing response frame in a kind of WLAN | |
| US9247394B2 (en) | Using neighboring access points to provide client device location data | |
| KR101786041B1 (en) | Load balancing in a wireless network with multiple access points | |
| CN104160741B (en) | Improve the efficiency in wireless network | |
| TWI331862B (en) | Method for clear channel assessment optimization in a wireless local area network | |
| CN101217423B (en) | Measuring the throughput of transmissions over wireless local area networks | |
| CN104813699B (en) | The method and system of active probe optimization wireless radio service is used in transmission network | |
| Xu et al. | Smartassoc: Decentralized access point selection algorithm to improve throughput | |
| JP2016538737A5 (en) | ||
| WO2014177103A1 (en) | Data transmission scheduling method, device and system | |
| CN109548188A (en) | Radio bearer processing method, user equipment and base station | |
| EP3142442B1 (en) | Method, device and system for controlling air interface resources | |
| US9479990B1 (en) | Roaming management for client devices | |
| CN104168657A (en) | Communication method and communication device of same-frequency networking wireless local area network | |
| JP2019505116A (en) | Data transmission method and station | |
| CN111601335B (en) | Wireless network performance test method and wireless AP | |
| WO2015021638A1 (en) | Method and device for judging node movement | |
| WO2014101490A1 (en) | Relay node selection method and apparatus | |
| TWI466575B (en) | System and method for wireless local area network airtime fairness | |
| CN104244274A (en) | Wi-Fi monitoring method and device | |
| WO2017206057A1 (en) | Resource allocation method and device | |
| JP5901840B2 (en) | Intelligent wireless intrusion prevention system and sensor using cloud sensor network | |
| TW200423626A (en) | Terminating frame reception | |
| WO2009106285A1 (en) | Process for controlling the association of one mobile terminal to one particular access point belonging to one wireless network | |
| JP6142454B2 (en) | Wireless communication device, accommodation prediction device, boundary information acquisition device, accommodation prediction method, boundary information acquisition method, and program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |