CN107682890A - A kind of terminal access controlling method and device - Google Patents
A kind of terminal access controlling method and device Download PDFInfo
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- CN107682890A CN107682890A CN201710848383.1A CN201710848383A CN107682890A CN 107682890 A CN107682890 A CN 107682890A CN 201710848383 A CN201710848383 A CN 201710848383A CN 107682890 A CN107682890 A CN 107682890A
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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
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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Abstract
The application provides a kind of terminal access controlling method, applied to wireless access point AP, it is characterised in that methods described includes：In the case of not broadcast service set identifier, the probe request of receiving terminal broadcast；According to the probe request, the signal intensity of the terminal is obtained；In the case where the signal intensity is not less than predetermined threshold value, the probe response frames with service set are sent to the terminal, so that this AP accesses may be selected in the terminal.Application scheme is uniformly controlled by judgements of the AP to itself and AC to each AP, wireless terminal is searched at least one adaptation AP of signal ideal or relative ideal, ensure that wireless network connects into power and signal intensity.
Description
Technical field
The application is related to communication technical field, more particularly to a kind of terminal access controlling method and device.
Background technology
The application of current wireless network is increasingly extensive, and many public arenas all realize all standing of wireless network.Work as nothing
When gauze network needs to cover larger space, due to the covering model of single AP (Wireless Access Point, WAP)
Limit is with, generally requires the diverse location in space, disposes different AP, each AP of same wireless network is using identical
SSID (Service Set Identifier, service set) and password, and by AC (Wireless Access Point
Controller, wireless access point controller) uniformly control.A certain position mobile phone, computer etc. are wireless eventually in space
End, when needing to connect wireless network, the quality of the network signal between each AP is not quite similar, in order to ensure that terminal connects
The quality to be communicated after wireless network by accessing terminal to network signal, it is necessary to preferably be adapted to AP.
It is the beacon frame for periodically including SSID to surrounding broadcast from AP in the prior art, or AP is being received from eventually
During the probe request at end, the probe response frames for including SSID are directly sent to the terminal.Terminal is according to default in equipment
Algorithm, from the multiple AP for sending beacon frame or Echo Frame, the optimal AP of selection signal, initiate association request.But if connect
Receive the AP of association request, by indexs such as the signal intensities of detection terminal, find itself be not the terminal adaptation AP, will refuse
The exhausted association request, so as to which guiding terminal associates with other AP, AP is preferably adapted to finally to access signal.
Because the adaptation AP detection algorithms that wireless terminal and AP equipment use are likely to different, therefore whether it is this for AP
The adaptation AP of terminal judgement is also likely to difference, or even in the case of network signal in general, adaptation AP may be not present, this
In the case of kind, the association request of more refusal terminals of multiple AP is might have, causes multiple connection failure, or even make terminal final
Wireless network is cannot connect to, influences the experience of user.
The content of the invention
In view of this, the application provides a kind of terminal access controlling method and device, technical scheme are as follows：
According to the first aspect of the application, there is provided a kind of terminal access controlling method, applied to wireless access point AP, the party
Method includes：
In the case of not broadcast service set identifier, the probe request of receiving terminal broadcast；
According to the probe request, the signal intensity of the terminal is obtained；
In the case where the signal intensity is not less than predetermined threshold value, the spy with service set is sent to the terminal
Echo Frame is surveyed, so that this AP accesses may be selected in the terminal.
In a kind of embodiment of the application, this method also includes：
In the case where the signal intensity is less than predetermined threshold value, the mark for including the terminal is reported to wireless controller AC
The probe requests thereby information of knowledge, so that the AC judges whether this AP sends the probe response for carrying service set to the terminal
Frame.
According to the second aspect of the application, there is provided a kind of terminal access controlling method, applied to wireless controller AC, the party
Method includes：
The probe requests thereby information that target AP is reported is received, wherein, the target AP is receiving the mesh of target terminal broadcast
Probe request is marked, and the signal intensity of the target terminal obtained according to the target acquisition claim frame is less than predetermined threshold value
In the case of, the probe requests thereby information of the mark including the target terminal is reported to AC；
Identified according to the target terminal, and default terminal and AP fitting relation, whether judge the target terminal
With adaptation AP；
According to judged result, notify whether the target AP sends the detection for carrying service set to the target terminal
Echo Frame, the probe response frames are used to make the target terminal that the target AP accesses may be selected.
According to the third aspect of the application, a kind of terminal access control apparatus, applied to wireless access point AP, the device bag
Include：
Claim frame receiving module, for the probe requests thereby that in the case of not broadcast service set identifier, receiving terminal is broadcasted
Frame；
Signal intensity acquisition module, for according to the probe request, obtaining the signal intensity of the terminal；
Echo Frame sending module, in the case of being not less than predetermined threshold value in the signal intensity, sent out to the terminal
The probe response frames with service set are sent, so that this AP accesses may be selected in the terminal.
In a kind of embodiment of the application, the device also includes：
Solicited message reporting module, in the case of being less than predetermined threshold value in the signal intensity, to wireless controller
AC reports the probe requests thereby information of the mark including the terminal so that the AC judge this AP whether to the terminal send band
There are the probe response frames of service set.
According to the fourth aspect of the application, a kind of terminal access control apparatus, applied to wireless controller AC, the device bag
Include：
Solicited message receiving module, the probe requests thereby information reported for receiving target AP, wherein, the target AP is connecing
Receive the target acquisition claim frame of target terminal broadcast, and the target terminal obtained according to the target acquisition claim frame
In the case that signal intensity is less than predetermined threshold value, the probe requests thereby information of the mark including the target terminal is reported to AC；
AP judge modules are adapted to, for being identified according to the target terminal, and default terminal and AP fitting relation, sentence
Whether the target terminal that breaks has adaptation AP；
AP notification modules, for according to judged result, notifying whether the target AP sends to the target terminal to carry
The probe response frames of service set, the probe response frames are used to make the target terminal that the target AP accesses may be selected.
Technical scheme provided herein, the not peripherad wireless terminal broadcast SSID of AP, terminal are passively finding mould
Any AP of the SSID can not be searched under formula, then by the AP around being detected by the form of broadcast probe request frame.Each
After AP receives the probe request of terminal, when the network signal for judging itself terminal is preferably adapted to AP, band is just responded
There are a SSID probe response frames, i.e., terminal can only finally search adaptation AP, so as to which ensure that wireless network connects into power
And signal intensity.In addition, the end message that AC can be listened to and reported according to AP, presets terminal and AP fitting relation, AP
When it itself is not the adaptation AP of the terminal to judge, AC can also be reported, judges whether the terminal has adaptation AP by AC, or
In the case where terminal is without adaptation AP, whether the AP and the fitting relation of the terminal reported be due to other AP, so as to notify
Whether the AP reported responds the terminal.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The application can be limited.In addition, any embodiment in the application and above-mentioned whole effects need not be reached.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present application；
Fig. 2 is the interaction flow schematic diagram of the embodiment of the present application fitting relation establishing method；
Fig. 3 is interaction flow schematic diagram of the embodiment of the present application applied to AP terminal access controlling method；
Fig. 4 is interaction flow schematic diagram of the embodiment of the present application applied to AC terminal access controlling method；
Fig. 5 is the AC decision process schematic diagrames of the embodiment of the present application；
Fig. 6 is structural representation of the embodiment of the present application applied to AP terminal access control apparatus；
Fig. 7 is structural representation of the embodiment of the present application applied to AC terminal access control apparatus.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, implement below in conjunction with the application
Accompanying drawing in example, the technical scheme in the embodiment of the present application is described in detail, it is clear that described embodiment is only
Some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art
The every other embodiment obtained, it should all belong to the scope of the application protection.
A kind of application scenarios of the embodiment of the present application are as shown in figure 1, in the larger region in the spaces such as market, Office Area
In, in order to ensure the signal cover of wireless network, multiple AP may be configured in different position, as the AP1 in figure,
AP2 and AP3, and uniformly managed by an AC.The network signal intensity that each AP is sent, can with the increase with AP distances and
Successively decrease, represent the preferable region of signal in figure in the range of ideal signal, if the barriers such as dividing plate, wall around AP be present,
Such as AP3, then range of signal will be substantially reduced.The wireless terminals such as mobile phone, computer in region (Station, STA), are needing
When connecting wireless network, due to the difference of present position, the intensity of each AP received network signal is also different, to make terminal
The preferable AP of signal is had access to, the application each provides a kind of terminal access controlling method from AP and AC angle.
The terminal access controlling method applied to AP of the embodiment of the present application, may comprise steps of：
In the case of not broadcast service set identifier, the probe request of receiving terminal broadcast；
According to the probe request, the signal intensity of the terminal is obtained；
In the case where the signal intensity is not less than predetermined threshold value, the spy with service set is sent to the terminal
Echo Frame is surveyed, so that this AP accesses may be selected in the terminal.
The terminal access controlling method applied to AC of the embodiment of the present application, may comprise steps of：
The probe requests thereby information that target AP is reported is received, wherein, the target AP is receiving the mesh of target terminal broadcast
Probe request is marked, and the signal intensity of the target terminal obtained according to the target acquisition claim frame is less than predetermined threshold value
In the case of, the probe requests thereby information of the mark including the target terminal is reported to AC；
Identified according to the target terminal, and default terminal and AP fitting relation, whether judge the target terminal
With adaptation AP；
According to judged result, notify whether the target AP sends the detection for carrying service set to the target terminal
Echo Frame, the probe response frames are used to make the target terminal that the target AP accesses may be selected.
In a kind of embodiment of the application, accessed for the ease of the optimal AP of guiding terminal selection signal,
The fitting relation between each terminal and each AP can be preset by AC, when Fig. 2 show default fitting relation, AC interacts with AP's
Schematic flow sheet, specifically it may comprise steps of：
Terminal in S201, AP monitoring signal coverage；
First, all AP configured in region, can monitor all terminals in its signal cover in real time.Example
Such as, can be with 802.11 frames of the terminal in monitoring signal coverage, because 802.11 frames are broadcast transmission, AP can be listened to
Data frame that terminal is sent to any equipment, management frame etc..
The end message listened to is reported AC by S202, AP, and the end message includes the mark and letter of institute's monitor terminal
Number intensity；
By the terminal in monitoring signal coverage, the terminal that AP can obtain required for AC presets fitting relation is believed
Breath, such as the mark of terminal, signal intensity of terminal etc., and the end message listened to is reported into AC.Specifically, the mark of terminal
Knowledge can be MAC (Media Access Control, medium access control) addresses or the AC of the terminal in region
Terminal distribute unitedly and be handed down to each AP unique mark, etc., those skilled in the art can according to reality demand
Selected, scheme provided herein need not be simultaneously defined to this.
S203, AC are adapted to pass according to the end message received, setting institute's monitor terminal with the AP's of reporting terminal information
System.
When AC receives the end message that each AP is reported, each AP mark can also be got, MAC Address such as the AP,
AC is ID or sequence number of each AP distribution of management etc..The parameters such as the signal intensity in end message, you can judge
Each whether being adapted between terminal and each AP, so as to establish the fitting relation of each terminal and each AP.For example, it is assumed that in Fig. 1
In shown region, the end message that AP is reported includes the MAC Address and RSSI (Received Signal of terminal
Strength Indicator, received signal strength indicator) etc. parameter, while AC has got the AP's of reporting terminal information
ID, then it can establish the terminal-AP adaptation tables shaped like table 1：
| STA | AP | Signal intensity | Whether it is adapted to |
| MAC 1 | AP 1 | RSSI 1 | 1 |
| MAC 1 | AP 2 | RSSI 2 | 1 |
| MAC 1 | AP 3 | RSSI 3 | 0 |
| MAC 2 | AP 1 | RSSI 4 | 0 |
| MAC 2 | AP 2 | RSSI 5 | 0 |
| MAC 2 | AP 3 | RSSI 6 | 0 |
Table 1
As described in Table 1, for each group of terminal and AP, due to distance therebetween, there is the shadows of the factors such as clear
Ring, be also not quite similar by the RSSI signal intensities characterized, AC can preset a judge threshold value, pass through more each RSSI and threshold
The magnitude relationship of value, judges whether terminal is adapted to AP, if it is determined that the AP is the adaptation AP of the terminal, is then designated as 1, is otherwise designated as
0.Therefore, as shown in Table 1, STA 1 adaptation AP is AP 1 and AP 2, and STA 2 is without adaptation AP.
In addition, AC can also pre-set the cycle of AP reporting terminal information, and predetermined period is issued to each AP, example
Such as, 10 seconds will can be arranged to the cycle, then AP will report the end message once listened to every 10 seconds.Meanwhile can be eventually
- AP adaptation tables in end set aging mechanism, for example, every a line fitting relation in table only retains 30 seconds, so, if terminal exists
Move or leave in region, the end message and aging mechanism listened to is periodically reported by AP, can be updated in time
The fitting relation of each terminal and AP.
Above-mentioned each step is after AC and AP equipment start, you can carries out in real time, to need to access nothing in terminal
During gauze network, the optimal AP accesses of guiding terminal selection signal.
As shown in figure 3, the terminal access controlling method applied to AP of the embodiment of the present application, may comprise steps of：
S301, terminal broadcast send probe request；
When terminal needs to access wireless network, it is necessary first to the AP in region of search, so as to by being preset in terminal device
Algorithm, from one or more AP searched, the optimal AP of selection signal initiates association request.The SSID phases of wireless network
When in the title of wireless network, and each AP of same wireless network uses identical SSID, and terminal will search the nothing
Some AP of gauze network, it is necessary to get the SSID that the AP sends or broadcasted.The SSID that terminal obtains AP can be by passive
Pattern and aggressive mode two ways are realized, in Passive Mode, beacon frame that terminal is periodically outwards broadcasted by AP obtains beacon
The SSID that frame carries, and AP can select to hide SSID in broadcast beacon frame, in the embodiment of the present application, even all AP
Not outside Broadcast SSIDs, make terminal in the passive mode, AP can not be searched, so as to the pattern of taking the initiative.In aggressive mode,
Terminal needs outside broadcast probe request frame, to there is AP to respond the probe response frames with SSID, so as to search AP.
S302, AP obtain the signal intensity of the terminal according to the probe request received；
After AP receives the probe request of terminal broadcast, the signal of the terminal according to probe request, can be got
Intensity, as it was noted above, signal intensity can be characterized by RSSI.
S303, AP send to the terminal in the case where the signal intensity is not less than predetermined threshold value and carry services set
The probe response frames of mark, so that this AP accesses may be selected in the terminal.
, can be with as it was noted above, compared with default threshold value, so as to judge after AP gets the signal intensity of terminal
Whether this AP is that the signal of the terminal is preferably adapted to AP, if signal intensity is not less than predetermined threshold value, can be sent out to the terminal
The probe response frames with SSID are sent, to allow the terminal to search this AP, so as to guide the terminal to select to send to this AP
Association request.It is understood that threshold value used herein should be unified with previously described threshold value, to ensure to fitting relation
Judged result it is consistent, therefore, this threshold value can be pre-configured with by AC, and uniformly be handed down to all AP.
In addition, if AP has found that signal intensity is less than default threshold value, AC can also be reported, is further planned as a whole to determine by AC
Plan.
As shown in figure 4, the terminal access controlling method applied to AC of the embodiment of the present application, may comprise steps of：
S401, AP report the mark for including the terminal to AC in the case where the signal intensity is less than predetermined threshold value
Probe requests thereby information；
As it was noted above, when AP has found the signal intensity of the terminal of broadcast probe request frame, can during not less than predetermined threshold value
To think the terminal in the range of the ideal signal of itself, so to the terminal respond SSID, so, the terminal at least one
AP can select to access.When AP find terminal signal intensity be less than predetermined threshold value when, it is believed that the terminal not itself
In the range of ideal signal, enter without responding SSID to the terminal, but now the AP can not know whether that having other AP responses is somebody's turn to do
Terminal, therefore, in order to ensure that the terminal can search at least one AP, while the terminal is not responded, the AP can be with
The probe requests thereby information of the mark including the terminal is reported to AC, transfers to AC further decision-makings.
The terminal iidentification of S402, AC in the probe requests thereby information received, and default terminal and AP are adapted to pass
System, judges whether the terminal has adaptation AP；
Whether S403, AC send the probe response for carrying service set to the terminal according to judged result, notice AP
Frame, so that the AP accesses may be selected in the terminal.
For the ease of description, S402 is combined with S403 and illustrated.
After AC receives the probe requests thereby information that AP is reported, you can according to terminal iidentification therein, and it is default as terminal-
The fitting relation of AP adaptation tables etc, judge to identify whether corresponding terminal has adaptation AP, and then according to judged result, notice
Report the AP of probe requests thereby information, if respond SSID to the terminal.
In a kind of embodiment of the application, AC decision process can be with as shown in figure 5, carry out schematic below
Explanation.
Assuming that having pre-established terminal-AP adaptation tables as shown in table 1, in the region shown in Fig. 1, AP 3 have received
The probe request that STA 1 is broadcasted, it is found that STA 1 signal intensity is less than predetermined threshold value, and then reported to AC and include MAC 1
Probe requests thereby information, then first, AC can be searched using MAC 1 in table 1, so as to find STA 1 exist adaptation
AP, i.e. AP 1 and AP 2, thus, in order to not make STA 1 search signal undesirable AP 3, AC can notify AP 3 not to
STA 1 sends the probe response frames with SSID, and as previously described, signal preferable AP 1 and AP 2 will be searched for by STA 1
Arrive, STA 1 can select an AP access according to itself default algorithm.
If what AP 3 was received is the probe request that STA 2 is broadcasted, preset it is again seen that STA 2 signal intensity is less than
Threshold value, and then the probe requests thereby information for including MAC 2 has been reported to AC, AC is searched using MAC 2 in table 1, you can hair
Adaptation AP is not present in existing STA2.As previously described, AP 1, AP 2, AP 3 will not respond SSID to STA 2, and report AC to enter
The decision-making of one step ground, in order to ensure that STA 2 can finally access the AP of signal relative ideal, AC can be further in comparison sheet 1
RSSI 4, RSSI 5, RSSI 6 size, it assume that RSSI 6 is more than RSSI 4 and RSSI 5, i.e. AP 3 and STA by Fig. 1
2 fitting relation then notifies AP 1 and AP 2 not send the probe response with SSID to STA 2 better than other AP in region
Frame, and notify AP 3 to send the probe response frames with SSID to STA 2, so as to guide the selection signal relative ideals of STA 2
AP 3 is accessed.
It can be seen that using application scheme, each AP is uniformly controlled by judgements of the AP to itself and AC, wireless terminal will
It can only search that signal is preferable or at least one adaptation AP of relative ideal, in this case, no matter terminal is to searching
Which AP sends association request, will not be rejected, so as to which ensure that wireless network connects into power and signal intensity.
Corresponding to above method embodiment, the application also provides a kind of terminal access control apparatus, applied to wireless access
Point AP, shown in Figure 6, the device can include：
Claim frame receiving module 110, in the case of not broadcast service set identifier, the detection of receiving terminal broadcast please
Seek frame；
Signal intensity acquisition module 120, for according to the probe request, obtaining the signal intensity of the terminal；
Echo Frame sending module 130, in the case of being not less than predetermined threshold value in the signal intensity, to the terminal
The probe response frames with service set are sent, so that this AP accesses may be selected in the terminal.
In a kind of embodiment of the application, the device can also include：
Solicited message reporting module, in the case of being less than predetermined threshold value in the signal intensity, to wireless controller
AC reports the probe requests thereby information of the mark including the terminal so that the AC judge this AP whether to the terminal send band
There are the probe response frames of service set.
In a kind of embodiment of the application, the device can also include：
Terminal monitoring module, for the terminal in monitoring signal coverage；
End message reporting module, for the end message listened to be reported into AC so that AC preset institute's monitor terminal with
This AP fitting relation, the end message include the mark and signal intensity of institute's monitor terminal.
The application also provides a kind of terminal access control apparatus, shown in Figure 7 applied to wireless controller AC, the dress
Putting to include：
Solicited message receiving module 210, the probe requests thereby information reported for receiving target AP, wherein, the target AP
The target acquisition claim frame of target terminal broadcast is being received, and the target obtained according to the target acquisition claim frame is whole
In the case that the signal intensity at end is less than predetermined threshold value, the probe requests thereby for reporting the mark including the target terminal to AC is believed
Breath；
AP judge modules 220 are adapted to, for being identified according to the target terminal, and default terminal and AP are adapted to pass
System, judges whether the target terminal has adaptation AP；
AP notification modules 230, for according to judged result, notifying whether the target AP to the target terminal sends band
There are the probe response frames of service set, the probe response frames connect for making the target terminal that the target AP may be selected
Enter.
In a kind of embodiment of the application, the device can also include：
End message receiving module, the end message reported for receiving AP, wherein, the AP of the reporting terminal information,
During terminal in monitoring signal coverage, the mark including institute's monitor terminal and the end message of signal intensity are reported
AC；
Fitting relation setting module, for being believed according to the end message received, setting institute's monitor terminal with reporting terminal
The AP of breath fitting relation.
In a kind of embodiment of the application, the device can also include：
Period assignment module, for configuring the cycle of AP reporting terminal information；
Cycle issues module, for the cycle to be issued into AP, so that AP periodically reports the terminal listened to believe
Breath.
In a kind of embodiment of the application, AP notification modules 230 specifically can be used for：
In the case where the target terminal has adaptation AP, the target AP is notified not send band to the target terminal
There are the probe response frames of service set；
In the case where the target terminal is without adaptation AP, being adapted to for the target AP and the target terminal is judged
Whether relation is better than other AP；
In the case where the target AP and the target terminal fitting relation are not better than other AP, the target is notified
AP does not send the probe response frames with service set to the target terminal；
In the case where the fitting relation of the target AP and the target terminal is better than other AP, the target AP is notified
The probe response frames with service set are sent to the target terminal.
The function of modules and the implementation process of effect specifically refer to and step are corresponded in the above method in said apparatus
Implementation process, it will not be repeated here.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Realized by the mode of software plus required general hardware platform.Based on such understanding, the technical scheme essence of the application
On the part that is contributed in other words to prior art can be embodied in the form of software product, the computer software product
It can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are causing a computer equipment
(can be personal computer, server, either network equipment etc.) performs some of each embodiment of the application or embodiment
Method described in part.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for device or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.Device or system embodiment described above is only schematical, wherein the conduct
The module that separating component illustrates can be or may not be it is physically separate, can be each when implementing application scheme
The function of module is realized in same or multiple softwares and/or hardware.Portion therein can also be selected according to the actual needs
Point or whole modules realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creative work
In the case of, you can to understand and implement.
Described above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a kind of terminal access controlling method, applied to wireless access point AP, it is characterised in that methods described includes：
In the case of not broadcast service set identifier, the probe request of receiving terminal broadcast；
According to the probe request, the signal intensity of the terminal is obtained；
In the case where the signal intensity is not less than predetermined threshold value, sends the detection with service set to the terminal and return
Frame is answered, so that this AP accesses may be selected in the terminal.
2. according to the method for claim 1, it is characterised in that methods described also includes：
In the case where the signal intensity is less than predetermined threshold value, the mark including the terminal is reported to wireless controller AC
Probe requests thereby information, so that the AC judges whether this AP sends the probe response frames for carrying service set to the terminal.
3. according to the method for claim 1, it is characterised in that methods described also includes：
Terminal in monitoring signal coverage；
The end message listened to is reported into AC, so that AC presets institute's monitor terminal and this AP fitting relation, the terminal letter
Breath includes the mark and signal intensity of institute's monitor terminal.
A kind of 4. terminal access controlling method, applied to wireless controller AC, it is characterised in that methods described includes：
The probe requests thereby information that target AP is reported is received, wherein, the target AP visits in the target for receiving target terminal broadcast
Claim frame is surveyed, and the signal intensity of the target terminal obtained according to the target acquisition claim frame is less than the feelings of predetermined threshold value
Under condition, the probe requests thereby information of the mark including the target terminal is reported to AC；
Identified according to the target terminal, and default terminal and AP fitting relation, judge whether the target terminal has
It is adapted to AP；
According to judged result, notify whether the target AP sends the probe response for carrying service set to the target terminal
Frame, the probe response frames are used to make the target terminal that the target AP accesses may be selected.
5. according to the method for claim 4, it is characterised in that methods described also includes：
The end message that AP is reported is received, wherein, the AP of the reporting terminal information, the terminal in monitoring signal coverage
When, the mark including institute's monitor terminal and the end message of signal intensity are reported into AC；
According to the end message received, setting institute's monitor terminal and the AP of reporting terminal information fitting relation.
6. according to the method for claim 5, it is characterised in that methods described also includes：
Configure the cycle of AP reporting terminal information；
The cycle is issued to AP, so that AP periodically reports the end message listened to.
7. according to the method for claim 4, it is characterised in that it is described according to judged result, whether notify the target AP
The probe response frames with service set are sent to the target terminal, including：
In the case where the target terminal has adaptation AP, the target AP is notified not sent to the target terminal with clothes
The probe response frames of business set identifier；
In the case where the target terminal is without adaptation AP, the target AP and the target terminal fitting relation are judged
Whether other AP are better than；
In the case where the target AP and the target terminal fitting relation are not better than other AP, the target AP is notified not
The probe response frames with service set are sent to the target terminal；
In the case where the fitting relation of the target AP and the target terminal is better than other AP, notify the target AP to institute
State target terminal and send the probe response frames with service set.
A kind of 8. terminal access control apparatus, applied to wireless access point AP, it is characterised in that described device includes：
Claim frame receiving module, for the probe request that in the case of not broadcast service set identifier, receiving terminal is broadcasted；
Signal intensity acquisition module, for according to the probe request, obtaining the signal intensity of the terminal；
Echo Frame sending module, in the case of being not less than predetermined threshold value in the signal intensity, band is sent to the terminal
There are the probe response frames of service set, so that this AP accesses may be selected in the terminal.
9. device according to claim 8, it is characterised in that described device also includes：
Solicited message reporting module, in the case of being less than predetermined threshold value in the signal intensity, on wireless controller AC
Report includes the probe requests thereby information of the mark of the terminal, so that the AC judges whether this AP is sent with clothes to the terminal
The probe response frames of business set identifier.
A kind of 10. terminal access control apparatus, applied to wireless controller AC, it is characterised in that described device includes：
Solicited message receiving module, the probe requests thereby information reported for receiving target AP, wherein, the target AP is being received
The target acquisition claim frame of target terminal broadcast, and the signal of the target terminal obtained according to the target acquisition claim frame
In the case that intensity is less than predetermined threshold value, the probe requests thereby information of the mark including the target terminal is reported to AC；
AP judge modules are adapted to, for being identified according to the target terminal, and default terminal and AP fitting relation, judge institute
State whether target terminal has adaptation AP；
AP notification modules, for according to judged result, notifying whether the target AP is sent with service to the target terminal
The probe response frames of set identifier, the probe response frames are used to make the target terminal that the target AP accesses may be selected.
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