CN103096344A - Method and device for detecting access point - Google Patents
Method and device for detecting access point Download PDFInfo
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- CN103096344A CN103096344A CN2011103400958A CN201110340095A CN103096344A CN 103096344 A CN103096344 A CN 103096344A CN 2011103400958 A CN2011103400958 A CN 2011103400958A CN 201110340095 A CN201110340095 A CN 201110340095A CN 103096344 A CN103096344 A CN 103096344A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
Abstract
The invention provides a method for detecting an access point, relates to the field of wireless communication, and can achieve fast detection of the access point. The method for detecting the access point comprises the steps of receiving management frames sent by the access point, completing the detection to the access point according to the received management frames, wherein the management frames are beacon frames probing response frames and/or broadcasted by the access point at regular intervals, and the probing response frames comprise broadcasted probing response frames and singlecasted probing response frames. The invention further provides a device for detecting the access point.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to the method and apparatus of a kind of AP of detection.
Background technology
BSS (Basic Service Set, Basic Service Set) is the element of WLAN (Wireless Local Area Networks, WLAN), is had certain related STA (Station, STA) and is formed by a plurality of.A plurality of BSS can interconnect by distributed system and form ESS (Extended Service Set, extended service set).AP (Access point, AP) is the core STA of full-time administrative BSS in the BSS network, and other STA in BSS are associated with AP.
In wireless communications environment, at first STA needed to scan before becoming the member of certain BSS, namely the core STAAP of BSS was surveyed to find BSS and obtain the attribute that is associated with this BSS.By scanning, STA can detect the existence of AP, thereby learns the attribute of its affiliated BSS.
Using 802.11 agreements, especially in the scene of using the 802.11ai agreement, the STA under AP covers may explosively occur, namely carve at a time now a large amount of STA and require associated AP, at this moment, STA can consume the plenty of time and survey AP, can't realize the quick detection of AP.
Summary of the invention
The invention provides the method and apparatus of a kind of AP of detection, can realize the quick detection of AP.
On the one hand, provide the method for AP of detection a kind of, comprising:
Receive the management frames that AP sends;
Complete detection to AP according to the management frames of described reception;
Wherein, described management frames is the beacon frame of probe response frame and/or AP periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
On the other hand, provide the method for AP of detection a kind of, comprising:
STA sends management frames to scanning;
Wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
On the other hand, provide the device of a kind of AP of detection, comprising:
Receiving element is used for receiving the management frames that AP sends;
Probe unit is for the detection of completing according to the management frames of described reception AP;
Wherein, described management frames is the beacon frame of probe response frame and/or AP periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
On the other hand, provide a kind of AP, comprising:
Transmitting element is used for sending management frames to scanning STA;
Wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
after adopting technique scheme, the method and apparatus of the detection AP that the embodiment of the present invention provides, STA receives the management frames that AP sends, wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture, so, the probe response frame that STA can broadcast by reception, the probe response frame of clean culture, at least one in beacon surveyed AP, receive only the probe response frame of clean culture with respect to tradition, STA both can detect the probe response frame of clean culture, can also detect probe response frame and the beacon frame of broadcasting, within the unit interval, greatly increased the probability that detects the mac frame that comprises BB S attribute information, thereby, effectively shortened the time of detecting AP, therefore, realized the quick detection to AP.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of one embodiment of the method for the detection AP that Fig. 1 provides for the embodiment of the present invention;
The structured flowchart of one embodiment of the device of the detection AP that Fig. 2 provides for the embodiment of the present invention;
The structured flowchart of another embodiment of the device of the detection AP that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme of the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, all other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belong to the scope of protection of the invention.
The flow chart of the method for the detection AP that Fig. 1 provides for the embodiment of the present invention, as shown in Figure 1, the present embodiment is surveyed the method for AP, based on STA, comprising:
S11 receives the management frames that AP sends; Wherein, described management frames is the beacon frame of probe response frame and/or AP periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture;
S12 completes detection to AP according to the management frames of described reception.
Particularly, include service set information in described management frames, after STA receives management frames, if described management frames satisfies condition: the SSID that namely comprises in described management frames is asterisk wildcard SSID or is complementary with the SSID of ESSID, and BSSID is asterisk wildcard BSSID, the described management frames of buffer memory, complete the detection to the AP that sends described management frames.
the method of the detection AP that the embodiment of the present invention provides, STA receives the management frames that AP sends, wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture, so, the probe response frame that STA can broadcast by reception, the probe response frame of clean culture, at least one in beacon surveyed AP, receive only the probe response frame of clean culture with respect to tradition, STA both can detect the probe response frame of clean culture, can also detect probe response frame and the beacon frame of broadcasting, within the unit interval, greatly increased the probability that detects the mac frame that comprises the BBS attribute information, thereby, effectively shortened the time of detecting AP, therefore, realized the quick detection to AP.
Alternatively, in one embodiment of this invention, receive the management frames of AP transmission in the S11 step before, described method also can comprise:
Send the probe request frame to AP, so that described AP according to described probe request frame, broadcasts the probe response frame corresponding with described probe request frame.
So, AP adopts broadcast mode after receiving the probe request frame, receive the mode of unicast that adopts after the probe request frame with respect to traditional AP, can with the reception object extension of probe response frame, help other STA to find AP by the probe response frame of surveying this broadcasting.
For making AP broadcasts probes response frame have more specific aim, can add the broadcasting indication information in the probe request frame, described broadcasting indication information indication AP adopts the mode of broadcasting to send the probe response frame corresponding with the probe request frame after receiving the probe request frame.Thereby, described to AP transmission probe request frame in another embodiment of the present invention alternatively, so that according to described probe request frame, broadcasting the probe response frame corresponding with the probe request frame of described reception, described AP can specifically comprise:
Send the probe request frame to AP, described probe request frame includes the broadcasting indication information, so that described AP is according to described broadcasting indication information, broadcasts probes response frame.
Wherein, described broadcasting indication information can be contained in the meaningless field of probe request frame, and for example, described broadcasting indication information can be contained in more burst fields or more data field of described probe request frame frame head; Or described broadcasting indication information can be contained in the information element of described probe request frame frame.
The method of detection AP provided by the invention can provide the scan pattern of two types to survey AP: enhancement mode active scan mode, enhancement mode drive sweep pattern at least.
When STA is in enhancement mode drive sweep pattern, the probe response frame that STA can broadcast by detecting, the probe response frame of clean culture, at least a AP of detection in beacon frame.Wherein, beacon frame is by the AP periodic broadcasting.When STA is in enhancement mode drive sweep pattern, except surveying AP by the beacon frame of detecting AP periodic broadcasting, also can respond because of AP probe response frame that probe request frame that other STA send broadcasts or the probe response frame of broadcasting and clean culture is surveyed AP by detecting, like this, STA is by this frame of two types of detecting, greatly increase the probability that detects the mac frame that comprises the BSS attribute information, can realize the quick detection of AP.
When STA is in the enhancement mode active scan mode, STA sends the probe request frame to AP, so that described AP is according to described probe request frame, broadcast the probe response frame corresponding with the probe request frame of described reception, preferably, when being in this pattern, add the broadcasting indication information in the probe request frame, so that AP when receiving the probe request frame, comes the broadcasts probes response frame according to described broadcasting indication information; At least a AP of detection in the probe response frame that STA broadcasts by detecting, the probe response frame of clean culture, beacon frame.
Particularly, after STA sent the probe response frame, AP sent corresponding probe response frame.For this STA, described probe response frame can be subdivided into following Four types: respond the probe request frame of this STA and the probe response frame of clean culture, respond other STA the probe request frame and the probe response frame of clean culture, respond the probe request frame of this STA and the probe response frame of broadcasting, respond other STA the probe request frame and the probe response frame of broadcasting.When using the legacy version AP of prior art, the probe response frame is the clean culture form as AP, and when AP used redaction AP provided by the invention, the probe response frame was the forms of broadcasting.
It is emphasized that no matter STA adopts the enhancement mode active scan mode, or enhancement mode drive sweep pattern, at least a with detection AP in the probe response frame that all can broadcast by detecting, the probe response frame of clean culture, beacon frame.
The method of the detection AP that the embodiment of the present invention provides, STA has at least two kinds of adoptable scan mode types, for example, have enhancement mode active scan mode and enhancement mode drive sweep pattern, certainly, in addition, also can have other extra scan mode types, the present invention does not do restriction to this.
For example, in one embodiment of this invention, the adoptable scan mode types of STA also can comprise active scan mode and drive sweep pattern except enhancement mode active scan mode and enhancement mode drive sweep pattern;
When STA had the initiative scan pattern, STA sent the probe request frame to AP; STA surveys AP by the probe response frame of detecting AP clean culture.
When STA was in the drive sweep pattern, STA passed through the beacon frame of detecting AP periodic broadcasting to survey AP.
In above-described embodiment, the adoptable scan pattern of STA comprises following four kinds of scan patterns, be respectively enhancement mode active scan mode, enhancement mode drive sweep pattern, active scan mode, the drive sweep pattern, wherein rear two kinds of scan patterns and active scan mode of the prior art and drive sweep pattern are identical.Thus, both realized the compatibility to existing scan pattern, simultaneously needing quick detection in the application scenarios of AP, as using 802.11 agreements, especially in the scene of using the 802.11ai agreement, by using two kinds of newly-increased scan patterns, saved the detection time of AP, realized the quick detection of AP.
In sum, the method for detection AP provided by the invention can provide the scan pattern of Four types to survey AP: enhancement mode active scan mode, enhancement mode drive sweep pattern, active scan mode and drive sweep pattern.Specific implementation can realize by increase scanning enhancing parameter on the basis of original scanning primitive, for example, reads sweep parameter, take definite scan mode types that is adopted as active scan or drive sweep; Read scanning and strengthen parameter, take the scan mode types determining to be adopted whether as the enhancement type scanning pattern.
Wherein, described sweep parameter is the parameter of active scan or drive sweep for determining scanning, can determine that by reading described sweep parameter scan pattern is active scan or drive sweep, and scanning strengthens parameter indication active scan mode or whether the drive sweep pattern strengthens.
The embodiment of the present invention strengthens parameter by sweep parameter and scanning and comes the beacon scanning mode type, namely additionally in existing scanning primitive increase a scanning and strengthen that parameter is indicated initiatively or whether the drive sweep pattern strengthens, this scanning strengthens parameter can realize indication to four kinds of scan patterns that propose in the embodiment of the present invention in conjunction with described sweep parameter.Specific implementation can be, and for example, can be that active is that passive is with indication drive sweep pattern to indicate active scan mode, to set this parameter by setting this parameter for sweep parameter.Strengthening parameter for scanning can be 1 to be in the enhancement type scanning pattern with indication active scan or drive sweep by setting this parameter, by set this parameter be 0 take indication active scan or drive sweep for generally scanning.Certainly this two parameter also can adopt other implementations, and the present invention is not construed as limiting this.
Correspondingly, the embodiment of the present invention also provides the method for AP of detection a kind of, based on AP, comprising:
STA sends management frames to scanning;
Wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
the method of the detection AP that the embodiment of the present invention provides, AP sends management frames to scanning STA, wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture, so, the probe response frame that STA can broadcast by reception, the probe response frame of clean culture, at least one in beacon surveyed AP, receive only the probe response frame of clean culture with respect to tradition, STA both can detect the probe response frame of clean culture, can also detect probe response frame and the beacon frame of broadcasting, within the unit interval, greatly increased the probability that detects the mac frame that comprises the BBS attribute information, thereby, effectively shortened the time of detecting AP, therefore, realized the quick detection to AP.
Further, before scanning STA transmission management frames, described method also comprises described:
Receive the probe request frame that scanning STA sends;
Describedly send management frames to scanning STA and specifically comprise:
Broadcast the probe response frame corresponding with the probe request frame of described reception.
The embodiment of the present invention, if AP determines that STA is after receiving the probe request frame, broadcast the probe response frame corresponding with the probe request frame of described reception, so, with respect to traditional mode of unicast, can with the reception object extension of probe response frame, help other STA to find AP by the probe response frame of surveying this broadcasting.Therefore, can shorten the time that STA waits for the probe response frame, realize that STA is to the quick detection of AP.
Further, can include the broadcasting indication information in described probe request frame, described broadcasting indication information indication AP sends the probe response frame in the mode of broadcasting, wherein, alternatively, described broadcasting indication information can be contained in the meaningless field of probe request frame, and for example, described broadcasting indication information is contained in more burst fields or more data field of described probe request frame frame head; Or described broadcasting indication information is contained in the information element of described probe request frame frame.
At this moment, the described broadcasting probe response frame corresponding with the probe request frame of described reception can specifically comprise:
According to the broadcasting indication information that described probe request frame comprises, broadcast the probe response frame corresponding with the probe request frame of described reception.
Particularly, the scan mode types that adopts at STA is the enhancement mode active scan mode, when sending to AP the probe request frame that carries the broadcasting indication information, described AP can broadcast the probe response frame corresponding with the probe request frame of described reception according to the broadcasting indication information in the probe request frame, so, with respect to traditional mode of unicast, can with the reception object extension of probe response frame, help other STA to find AP by the probe response frame of surveying this broadcasting.Therefore, can shorten in the enhancement mode active scan mode time that STA waits for the probe response frame, realize that STA is to the quick detection of AP.
Be the technical scheme of the method for understanding better the detection AP that the embodiment of the present invention provides, the method for the detection AP that the embodiment of the present invention is provided below by specific embodiment is described in further detail.
In the present embodiment, the scan mode types that STA can adopt comprises following Four types: enhancement mode active scan mode, enhancement mode drive sweep pattern, active scan mode, drive sweep pattern.The method of the detection AP of the present embodiment comprises:
When step 1, needs detection AP, the SME of STA (Station Management Entity, the STA management entity) layer is to MLME (MAC Sublayer Management Entity, layer management entity under medium access control) layer sends scan request primitive, comprise sweep parameter in described scan request primitive, be used to indicate the scan pattern of STA and such as SSID (Service Set Identifier, service set identifiers) etc., and comprise a newly-increased scanning enhancing parameter, whether the scan pattern that is used to indicate STA strengthens.
Step 2, STA read sweep parameter, take definite scan mode types that is adopted as active scan or drive sweep; Read scanning and strengthen parameter, take the scan mode types determining to be adopted whether as the enhancement type scanning pattern.
Step 3, STA carries out AP detection according to determined scan mode types.
In the present embodiment, scan pattern comprises enhancement mode active scan mode, enhancement mode drive sweep pattern, active scan mode, drive sweep pattern.Below adopt each scan mode types that this step is elaborated with regard to STA:
If STA determines to adopt the enhancement mode active scan mode, this step specifically comprises:
Step 3-11, wait for to sound out expire time of delay or receive physical layer receive start primitive after, STA begins certain channel is scanned.
Step 3-12, STA follow basic access mechanism, to AP broadcasting or clean culture probe request frame, simultaneously carry SSID and BSSID (the Basic Service Set Identifier that request primitive provides in the mac frame body of described probe request frame or mac frame head, the basic service set identifiers) information such as, and the broadcasting indication information, wherein, described broadcasting indication information is indicated to AP, probe request person STA is in the enhancement mode active scan mode, and requires the corresponding probe response frame of AP broadcasting.Described broadcasting indication information for example can be in frame arranges in more burst fields of newly-designed information element or mac frame head or retry field.Start simultaneously and survey timer, described timer is initialized as 0.
After step 3-13, AP receive the probe response frame, if satisfy condition just according to the form transmission corresponding probe response frame of the broadcasting indication information that comprises in the probe request frame with broadcasting.Described condition can be asterisk wildcard SSID or be complementary with the SSID of ESS for: SSID, and BSSID is the BSSID for asterisk wildcard BSSID or this AP.
Step 3-14, be in described enhancement mode active scan mode STA when surveying timer and reach the minimum channel time of intercept, if do not receive that also physical layer intercepts indication, transfer step 3-16 to.Otherwise resolve that occur on this channel, broadcasting that mail to this STA or mail to the probe response frame of the clean culture of this STA, alternatively, also can resolve the beacon frame that occurs on this channel, for realizing the quick detection of AP, preferably, resolve simultaneously the beacon frame that occurs and the probe response frame of broadcasting and clean culture on this channel.If SSID meets the demands, the information of this probe response frame of buffer memory and/or beacon frame.
Step 3-15, reach the maximum channel time of intercept when surveying timer, finish the scanning of this channel.
Step 3-16, NAV (Network Allocation Vector, network allocation vector)=0 is set, and scans next channel.
If STA determines to adopt enhancement mode drive sweep pattern, this step specifically comprises:
Step 3-21, after receiving that physical layer receive to start primitive, begin certain channel is scanned;
Step 3-22, all beacon frames and the probe response frame of intercepting this channel appearance, and resolve the information of described frame, wherein, described probe response frame can be the probe response frame of clean culture, also can be the probe response frame of broadcasting, if the SSID that wherein comprises meets the demands, the information of this beacon frame of buffer memory and/or probe response frame frame.
Step 3-23, when reach the maximum channel time of intercept sweep time for this channel, finish the scanning of this channel, begin to carry out the scanning of next channel.
If when STA determined to adopt active scan mode, this step specifically comprised:
Step 3-31, wait for to sound out expire time of delay or receive physical layer receive start primitive after, begin certain channel is scanned.
Step 3-32, STA follow basic access mechanism, send the probe request frame to AP, carry the information such as SSID that request primitive provides and BSSID simultaneously in mac frame body or mac frame head.Simultaneously, start and survey timer, described timer is initialized as 0.
After step 3-33, AP receive the probe response frame, if satisfy condition: SSID is that the SSID of asterisk wildcard SSID or ESS is complementary, and BSSID is the BSSID for asterisk wildcard BSSID or this AP, to the corresponding probe response frame of probe request person's clean culture.
When the STA of step 3-34, the scan pattern that has the initiative reaches the minimum channel time of intercept at the detection timer, if also do not receive physical layer interception confirming primitive, transfer step 3-36 to.Otherwise resolve clean culture probe response frame that occur on this channel, that mail to this STA, and the information of this probe response frame of buffer memory.
Step 3-35, reach the maximum channel time of intercept when surveying timer, finish the scanning of this channel.
Step 3-36, NAV=0 is set, and scans next channel.
If when STA determined to adopt the drive sweep pattern, this step specifically comprised:
Step 3-41, after receiving that physical layer receive to start primitive, begin certain channel is scanned;
Step 3-42, intercept all beacon frames that occur on channel, and resolve the information of described beacon frame, if the SSID that wherein comprises meets the demands, the information of this beacon frame of buffer memory.
Step 3-43, when reach the maximum channel time of intercept sweep time for this channel, finish the scanning of this channel, begin to carry out the scanning of next channel.
Step 4, when all channels of probe request primitive indicating all during been scanned, the MLME layer of STA will scan resulting AP information fusion confirms primitive to scanning, and passes to the SME layer of STA, the end of scan.
The present embodiment is on the basis of traditional active scan and two scan patterns of drive sweep, two scan patterns have been newly increased, wherein, in the enhancement mode active scan mode, send the probe request frame that carries the broadcasting indication information to AP, make AP after receiving described probe request frame according to described broadcasting indication information, broadcast corresponding probe response frame, so, with respect to traditional mode of unicast, can with the reception object extension of probe response frame, help other STA to survey by the probe response frame of this broadcasting and find AP.On the other hand, in described enhancement mode active scan mode, STA both can detect the probe response frame of broadcasting and clean culture, can also detect beacon frame, within the unit interval, greatly increase the probability that detects the mac frame that comprises the BBS attribute information, thereby, effectively shorten the time of detecting AP, therefore, realized the quick detection to AP.And in enhancement mode drive sweep pattern, by detecting broadcasts probes response frame and beacon frame, within the unit interval, greatly increased the probability that detects the mac frame that comprises the BSS attribute information, also can realize the quick detection to AP.
Need to prove especially, the present invention surveys the embodiment of the method for AP, when STA is in the enhancement mode active scan mode, STA is when sending the probe request frame, both can comprise indication AP and send the broadcasting indication information of probe response frame in the mode of broadcasting in described probe request frame, certainly also can not comprise described broadcasting indication information in described probe request frame.
When comprising described broadcasting indication information in the probe request frame, can survey AP by surveying probe response frame or probe response frame and beacon frame, the probe response frame of the probe request frame clean culture that wherein said probe response frame can carry for responding other STA probe response frame that the probe request frame of broadcasting indication information broadcasts, respond probe response frame that probe request frame that this STA carries the broadcasting indication information broadcasts, respond this STA, respond at least one in the probe response frame of probe request frame clean culture of other STA.
When not comprising described broadcasting indication information in the probe request frame, also can survey AP by surveying probe response frame or probe response frame and beacon frame, at this moment, described probe response frame can carry for responding other STA the broadcasting indication information the probe request frame probe response frame of broadcasting, respond this STA the clean culture of probe request frame the probe response frame, respond at least one in the probe response frame of probe request frame clean culture of other STA.
The method of surveying AP with the present invention is corresponding, and in addition, the embodiment of the present invention also provides the device of a kind of AP of detection, as shown in Figure 2, comprising:
Receiving element 21 is used for receiving the management frames that AP sends; Wherein, described management frames is the beacon frame of probe response frame and/or AP periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
the device of the detection AP that the embodiment of the present invention provides, receiving element 21 receives the management frames that AP sends, wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture, the probe response frame of the broadcasting that probe unit 22 can receive by receiving element 21, the probe response frame of clean culture, at least one in beacon surveyed AP, so, receive only the probe response frame of clean culture with respect to tradition, STA both can detect the probe response frame of clean culture, can also detect probe response frame and the beacon frame of broadcasting, within the unit interval, greatly increased the probability that detects the mac frame that comprises the BBS attribute information, thereby, effectively shortened the time of detecting AP, therefore, realized the quick detection to AP.
Alternatively, in one embodiment of this invention, as shown in Figure 3, described device also comprises:
Transmitting element 23 is used for sending the probe request frame to AP, so that described AP according to described probe request frame, broadcasts the probe response frame corresponding with described probe request frame before receiving element 21 receives the management frames of AP transmission.
Alternatively, in one embodiment of this invention, described transmitting element 23 specifically is used for:
Send the probe request frame to AP, described probe request frame includes the broadcasting indication information, so that described AP is according to described broadcasting indication information, broadcasts probes response frame.
Further, described broadcasting indication information is contained in more burst fields or more data field of described probe request frame frame head; Or described broadcasting indication information is contained in the information element of described probe request frame frame.
The method of surveying AP with the present invention is corresponding, and in addition, the embodiment of the present invention also provides a kind of AP, comprising:
Transmitting element is used for sending management frames to scanning STA;
Wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
a kind of AP that the embodiment of the present invention provides, transmitting element sends management frames to scanning STA, wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture, the probe response frame that scanning STA can broadcast by detecting, the probe response frame of clean culture, at least one in beacon surveyed AP, so, receive only the probe response frame of clean culture with respect to tradition, STA both can detect the probe response frame of clean culture, can also detect probe response frame and the beacon frame of broadcasting, within the unit interval, greatly increased the probability that detects the mac frame that comprises the BBS attribute information, thereby, effectively shortened the time of detecting AP, therefore, realized the quick detection to AP.
Alternatively, in one embodiment of this invention, described AP also comprises except comprising transmitting element:
Receiving element is used for receiving the probe request frame that scanning STA sends;
Described transmitting element specifically is used for:
According to the probe request frame that receiving element receives, broadcast the probe response frame corresponding with the probe request frame of described reception.
Further, include the broadcasting indication information in described probe request frame;
Described transmitting element specifically is used for:
According to the broadcasting indication information that comprises in described probe request frame, broadcast the probe response frame corresponding with the probe request frame of described reception.
Further, described broadcasting indication information is contained in more burst fields or more data field of described probe request frame frame head; Or described broadcasting indication information is contained in the information element of described probe request frame frame.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to come the relevant hardware of instruction to complete by program, described program can be stored in a kind of computer-readable recording medium, and described storage medium can be read-only memory, disk or CD etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (16)
1. a method of surveying access point, is characterized in that, comprising:
Receive the management frames that access point sends; Wherein, described management frames is the beacon frame of probe response frame and/or access point periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture;
Complete detection to access point according to the management frames of described reception.
2. method according to claim 1, is characterized in that,
Before the management frames that described reception access point sends, described method also comprises:
Send the probe request frame to access point, so that described access point according to described probe request frame, is broadcasted the probe response frame corresponding with described probe request frame.
3. method according to claim 1 and 2, is characterized in that,
Described to access point transmission probe request frame, so that according to described probe request frame, broadcasting the probe response frame corresponding with the probe request frame of described reception, described access point comprises:
Send the probe request frame to access point, described probe request frame includes the broadcasting indication information, so that described access point is according to described broadcasting indication information, broadcasts probes response frame.
4. method according to claim 3, is characterized in that,
Described broadcasting indication information is contained in more burst fields or more data field of described probe request frame frame head; Or
Described broadcasting indication information is contained in the information element of described probe request frame frame.
5. a method of surveying access point, is characterized in that, comprising:
To scanning website sending tube reason frame;
Wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
6. method as claimed in claim 5, is characterized in that,
Before scanning website sending tube reason frame, described method also comprises described:
Receive the probe request frame that the scanning website sends;
Describedly comprise to scanning website sending tube reason frame:
Broadcast the probe response frame corresponding with the probe request frame of described reception.
7. method as claimed in claim 6, is characterized in that,
Include the broadcasting indication information in described probe request frame;
The described broadcasting probe response frame corresponding with the probe request frame of described reception comprises:
According to the broadcasting indication information that comprises in described probe request frame, broadcast the probe response frame corresponding with the probe request frame of described reception.
8. method according to claim 7, is characterized in that,
Described broadcasting indication information is contained in more burst fields or more data field of described probe request frame frame head; Or
Described broadcasting indication information is contained in the information element of described probe request frame frame.
9. a device of surveying access point, is characterized in that, comprising:
Receiving element is used for receiving the management frames that access point sends; Wherein, described management frames is the beacon frame of probe response frame and/or access point periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture;
Probe unit is for the detection of completing according to the management frames of described receiving element reception access point.
10. device according to claim 9, is characterized in that,
Described device also comprises:
Transmitting element is used for sending the probe request frame to access point, so that described access point according to described probe request frame, is broadcasted the probe response frame corresponding with described probe request frame before receiving element receives the management frames of access point transmission.
11. according to claim 9 or 10 described devices is characterized in that,
Described transmitting element specifically is used for:
Send the probe request frame to access point, described probe request frame includes the broadcasting indication information, so that described access point is according to described broadcasting indication information, broadcasts probes response frame.
12. device according to claim 11 is characterized in that,
Described broadcasting indication information is contained in more burst fields or more data field of described probe request frame frame head; Or
Described broadcasting indication information is contained in the information element of described probe request frame frame.
13. an access point is characterized in that, comprising:
Transmitting element is used for to scanning website sending tube reason frame;
Wherein, described management frames is the beacon frame of probe response frame and/or periodic broadcasting, and described probe response frame comprises the probe response frame of broadcasting, the probe response frame of clean culture.
14. access point as claimed in claim 13 is characterized in that, described device also comprises:
Receiving element is used for receiving the probe request frame that the scanning website sends;
Described transmitting element specifically is used for:
According to the probe request frame that described receiving element receives, broadcast the probe response frame corresponding with the probe request frame of described reception.
15. access point as claimed in claim 14 is characterized in that,
Include the broadcasting indication information in described probe request frame;
Described transmitting element specifically is used for:
According to the broadcasting indication information that comprises in described probe request frame, broadcast the probe response frame corresponding with the probe request frame of described reception.
16. access point according to claim 15 is characterized in that,
Described broadcasting indication information is contained in more burst fields or more data field of described probe request frame frame head; Or
Described broadcasting indication information is contained in the information element of described probe request frame frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110340095.8A CN103096344B (en) | 2011-11-01 | 2011-11-01 | A kind of method and apparatus detecting access point |
| PCT/CN2012/078905 WO2013063956A1 (en) | 2011-11-01 | 2012-07-20 | Method and device for detecting access point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110340095.8A CN103096344B (en) | 2011-11-01 | 2011-11-01 | A kind of method and apparatus detecting access point |
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| CN103096344A true CN103096344A (en) | 2013-05-08 |
| CN103096344B CN103096344B (en) | 2015-09-23 |
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| CN106231634A (en) * | 2016-07-15 | 2016-12-14 | 北京元心科技有限公司 | Message sending and receiving method and device |
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| WO2017206086A1 (en) * | 2016-05-31 | 2017-12-07 | 华为技术有限公司 | Access point discovery method and apparatus |
| CN112752285A (en) * | 2020-09-27 | 2021-05-04 | 利尔达科技集团股份有限公司 | Sniffing copy control equipment and method for Wi-SUN network test |
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| WO2015081518A1 (en) * | 2013-12-04 | 2015-06-11 | 华为技术有限公司 | Management frame sending processing method and system |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013063956A1 (en) | 2013-05-10 |
| CN103096344B (en) | 2015-09-23 |
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