CN101827362B - Method for identifying access point identity, workstation roaming method and related equipment - Google Patents

Method for identifying access point identity, workstation roaming method and related equipment Download PDF

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Publication number
CN101827362B
CN101827362B CN2010101290427A CN201010129042A CN101827362B CN 101827362 B CN101827362 B CN 101827362B CN 2010101290427 A CN2010101290427 A CN 2010101290427A CN 201010129042 A CN201010129042 A CN 201010129042A CN 101827362 B CN101827362 B CN 101827362B
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access point
access
work station
sign
bssid
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CN101827362A (en
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吴佳林
刘国平
谢衍
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2010/079366 priority patent/WO2011113283A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

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  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Abstract

The embodiment of the invention relates to the technical field of communications, and discloses a method for identifying access point identity, a workstation roaming method and related equipment. The method comprises the following steps: after a first access point receives a message, acquiring a basic service set identifier (BSSID) in the message, wherein the BSSID comprises an operator identifier of a second access point transmitting the message and an access controller identifier at the second access point; and comparing the operator identifier and the access controller identifier with the information stored in the first access point, wherein if the operator identifier is identical to the operator identifier stored in the first access point and the access controller identifier is identical to the access controller identifier stored in the first access point, judging that the first access point and the second access point belong to the same extent of jurisdiction. The embodiment of the invention can decrease the occupation of the MAC address resources.

Description

Method, workstation roaming method and the relevant device of identification access point identity
Technical field
The present invention relates to communication technique field, be specifically related to discern method, workstation roaming method and the relevant device of access point identity.
Background technology
Basic service set (Basic Service Set, BSS) in, (Access Point AP) is used for being responsible for the communication at BSS all working station to access point.AP can provide a plurality of network name access services for work station, and each network name access service has different encrypted, authentication mode and some other network parameter difference.Each network name access service body promptly be called a virtual access point (Virtual Access Point, VAP), each VAP distribute an infrastructure service set identifier (Basic Service Set Identify, BSSID) and network name.(MediaAccessControl, MAC) address is represented in the overall medium access control of the BSSID request for utilization of each VAP.
Along with AP quantity is more and more, operator can use access controller, and (Access Controller AC) manages AP concentratedly, improves the efficiency of management to AP.In this case, be for VAP distributes a kind of method of BSSID: each AP when dispatching from the factory, the overall MAC Address of each VAP that fixed allocation is applied in advance; Another kind method is: the overall MAC Address resource that AC applies in advance, and by the AC centralized management, when starting, from the MAC Address resource, distributes AP for AP by AC.These two kinds of methods all need be managed the distribution of BSSID.BSSID allocation table on the common AC is as shown in table 1:
Table 1
AP?ID VAP?ID BSSID
0 1 0x00e0-1234-5678
1 2 0x00e0-5678-1234
As shown in table 1, AP ID is AP sign or AP name, and VAP ID is VAP sign or VAP network name.In the AP of AP ID=0, the BSSID of the VAP of VAP ID=1 is the overall MAC Address 0x00e0-1234-5678 of application; In the AP of AP ID=1, the BSSID of the VAP of VAP ID=2 is the overall MAC Address 0x00e0-5678-1234 of application.
In BSS, need discern it in order to ensure communication security AP and have which AP on every side.For example, AP need identify whether have such AP around it, and promptly these AP and this AP belong to the compass of competency of different AC respectively; If exist; Then these AP possibly use identical transmission channel with this AP, thereby have caused Communication Jamming, have had a strong impact on communication quality.For this reason, prior art has proposed a kind of method of the AP of identification identity, specifically may further comprise the steps:
101, the BSSID around AP collects in other the message that AP sent;
102, the BSSID that collects is reported AC;
103, whether the BSSID that reports of AC traversal AP is the BSSID of own distribution, if then carry out 104; If not, judge that AP that this BSSID is corresponding and this AP belong to respectively in the different compass of competency;
With above-mentioned table 1 is example, each BSSID that AC reports AP respectively with allocation table in BSSID compare one by one, if identical, then carry out 104; If it is identical,
104, whether there is corresponding AP information according to this BSSID inquiry, if judge that this BSSID corresponding AP and this AP belong in the same compass of competency; If not, judge that AP that this BSSID is corresponding and this AP belong to respectively in the different compass of competency.
With above-mentioned table 1 is example, and the BSSID that AP reports is 0x00e0-1234-5678, and AC inquires the AP information that exists this BSSID corresponding, i.e. AP ID according to BSSID=0x00e0-1234-5678; Judge that AP that this BSSID is corresponding and this AP belong in the same compass of competency.
In the recognition methods of above-mentioned AP identity, AC needs huge BSSID allocation table of management maintenance, and BSSID adopts the overall MAC Address of application to represent, has taken a large amount of MAC Address resources.
Summary of the invention
The embodiment of the invention provides a kind of method, workstation roaming method and relevant device of discerning access point identity, can reduce taking of MAC Address resource.
The embodiment of the invention provides a kind of method of discerning access point identity, comprising:
First access point obtains the basic service set identification BSSID in the said message after receiving message, and said BSSID comprises the operator's sign of second access point that sends said message and the access controller sign of said second access point;
Said operator sign and access controller sign are compared with the said first access point canned data; If said operator sign is identical with the access controller sign that the operator of said first access point storage identifies identical and said access controller sign and the storage of said first access point, judge that then said first access point and said second access point belong in the same compass of competency.
The embodiment of the invention provides a kind of access point, comprising:
The information acquisition module is used for after receiving message, obtaining the basic service set identification BSSID in the said message, and said BSSID comprises the operator's sign of second access point that sends said message and the access controller sign of said second access point;
The first contrast module; Be used for said operator sign and access controller sign are compared with this access point canned data; If said operator sign is identical with the access controller sign that the operator of this access point storage identifies identical and said access controller sign and the storage of this access point, judge that then said second access point and this access point belong in the same compass of competency.
The embodiment of the invention provides a kind of communication system, comprises first access point and second access point,
Said second access point is used to send message, and said message comprises basic service set identification BSSID, and said BSSID comprises the operator's sign of said second access point and the access controller sign of said second access point;
Said first access point; Be used to receive said message; Obtain said BSSID; Operator among said BSSID sign and access controller sign are compared with the said first access point canned data, identical if the access controller that operator's sign of said operator sign and said first access point storage is identical and said access controller sign and said first access point are stored identifies, judge that then said first access point and said second access point belong in the same compass of competency.
The embodiment of the invention provides a kind of workstation roaming method, comprising:
First access controller receives the roaming request of the work station that first access point reports, and said roaming request has been carried infrastructure service set identifier BSSID and the BSSID of said first access point of second access point at the current place of said work station; The BSSID of said second access point comprises the operator's sign and the access controller sign of said second access point; The BSSID of said first access point comprises the operator's sign and the access controller sign of said first access point;
The operator sign that said first access controller is judged said first access point and access controller identify with first access controller on canned data whether consistent, obtain first result of determination; And the operator sign of judging said second access point and access controller identify with first access controller on canned data whether consistent, obtain second result of determination;
If it is consistent that said first result of determination and said second result of determination are, then delete the said work station and the related information of second access point of said first access controller configuration, and send the message of deleting said work station information to said second access point;
Increase the related information of the said work station and first access point, and send the message that allows said work station related, thereby realize said workstation roaming to said first access point to said first access point.
The embodiment of the invention provides a kind of access controller, comprising:
Receiver module is used to receive the roaming request of the said work station that said first access point reports, and said roaming request has been carried infrastructure service set identifier BSSID and the BSSID of said first access point of second access point at the current place of said work station; The BSSID of said second access point comprises the operator's sign and the access controller sign of said second access point; The BSSID of said first access point comprises the operator's sign and the access controller sign of said first access point;
Comparison module, be used for the operator of said first access point sign and access controller identify with access controller on canned data whether consistent, obtain first result of determination; And the operator sign of judging said second access point and access controller identify with said access controller on canned data whether consistent, obtain second result of determination;
First processing module; Be used for being when identical in said first result of determination and said second result of determination; Delete the said work station of access controller configuration and the related information of second access point, and send the message of the said work station information of deletion to said second access point;
Second processing module; Be used in said first processing module after said second access point sends the message of the said work station information of deletion; Increase the related information of the said work station and first access point; And to the related message of the said said work station of first access point transmission permission, thereby realize said workstation roaming to said first access point.
The embodiment of the invention provides a kind of workstation roaming system, comprises first access point, is used to control first access controller of said first access point, second access point and at least one workbench that is positioned at said second access point, wherein
Said first access point, the roaming request of said at least one work station that is used for reporting to said first access controller, said roaming request has been carried the infrastructure service set identifier BSSID of said second access point and the BSSID of said first access point; The BSSID of said second access point comprises the operator's sign and the access controller sign of said second access point at least; The BSSID of said first access point protects the operator's sign and the access controller sign of said first access point at least;
Said first access controller; Be used to receive the roaming request of said at least one work station that said first access point reports; And the operator sign of judging said first access point that said roaming request is carried and access controller identify with first access controller on canned data whether consistent, obtain first result of determination; And the operator sign of judging said second access point that said roaming request is carried and access controller identify with first access controller on canned data whether consistent, obtain second result of determination; If it is consistent that said first result of determination and said second result of determination are, then delete the said work station and the related information of second access point of first access controller configuration, and send the message of deleting said work station information to said second access point; Increase the related information of the said work station and first access point, and send the message that allows said work station related to said first access point;
Said second access point is used to receive the message of the said work station information of deletion that said first access controller sends, with said work station information deletion;
Said first access point also is used to receive related message and the related said work station of permission work station that said first access controller sends, thereby realizes said workstation roaming to said first access point.Compared with prior art, the embodiment of the invention has following beneficial effect:
In embodiments of the present invention; The BSSID of access point comprises the operator's sign and the access controller sign of this access point at least; Use the operator sign of this access point and the access controller sign can identify this access point and whether this access point belongs in the same AC compass of competency; And can realize workstation roaming, replace the overall MAC Address of application, thereby reduced taking of MAC Address resource.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing a kind of flow chart of discerning the method for access point identity;
A kind of flow chart of discerning the method for access point identity of Fig. 2 for providing in the embodiment of the invention;
Fig. 3 discerns the flow chart of the method for access point identity for the another kind that provides in the embodiment of the invention;
Fig. 4 a is the flow chart of the method for the another kind identification access point identity that provides in the embodiment of the invention;
Fig. 4 b is a kind of BSS configuration diagram that provides in the embodiment of the invention;
Fig. 5 is the structure chart of a kind of access point of providing in the embodiment of the invention;
Fig. 6 is the structure chart of the another kind of access point that provides in the embodiment of the invention;
Fig. 7 is the flow chart of a kind of workstation roaming method of providing in the embodiment of the invention;
Fig. 8 is the structure chart of a kind of access controller of providing in the embodiment of the invention;
Fig. 9 is the structure chart of the another kind of access controller that provides in the embodiment of the invention;
Figure 10 is the structure chart of a kind of communication system of providing in the embodiment of the invention;
Figure 11 is the structure chart of a kind of workstation roaming system that provides in the embodiment of the invention;
Figure 12 is the structure chart of the another kind of workstation roaming system that provides in the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one:
See also Fig. 2, a kind of flow chart of discerning the method for access point identity of Fig. 2 for providing in the embodiment of the invention.As shown in Figure 2, this method can comprise:
After step 201, first access point receive message, obtain the BSSID in this message, this BSSID comprises the operator's sign of second access point that sends this message and the access controller sign of second access point;
Step 202, above-mentioned operator sign and access controller sign are compared with the first access point canned data; If above-mentioned operator sign is identical with the controller identifier that the operator of first access point storage identifies identical and above-mentioned access controller sign and the storage of first access point, judge that then first access point and second access point belong in the same compass of competency.
Preferably; BSSID in the above-mentioned message can also comprise the access point identity of second access point; Then the method for the identification access point identity that provides of the embodiment of the invention can also judge further whether the access point identity of this access point identity and the storage of first access point is identical; If identical, judge that then second access point and first access point are same access point.
In the method for the identification access point identity that the embodiment of the invention provides, the BSSID of access point comprises operator's sign and access controller sign at least, has replaced the overall MAC Address of application, can reduce BSSID taking the MAC Address resource.
Embodiment two:
See also Fig. 3, a kind of flow chart of discerning the method for access point identity of Fig. 3 for providing in the embodiment of the invention.Present embodiment is an example to discern local access point identity, and wherein, local access point all possesses local unicast address.As shown in Figure 3, this method can comprise:
BSSID in the literary composition that access point is transmitted messages around step 301, AP collect, this BSSID comprise operator's sign and access controller sign at least;
In BSS; Each AP all can receive the message that other AP around it send; And from message, obtain the BSSID that carries, and this is a general knowledge as well known to those skilled in the art, the embodiment of the invention is not introduced the detailed process that AP collects the BSSID in its literary composition that other AP transmit messages on every side.
Wherein, operator's sign adopts carrier ID to represent that the carrier ID span is 0～4K-1, has promptly taken 12 bits; The access controller sign adopts AC ID to represent that AC ID span is 0～4K-1, has promptly taken 12 bits.
Step 302, judge whether the I/G position among this BSSID is 0, and whether the U/L position be 1, if; Explain that this BSSID is local unicast address; And execution in step 303 if not, and then the pairing AP of this BSSID and this AP belong to respectively in the different AC compass of competency, and process ends;
Whether step 303, the operator sign that contrasts among this BSSID be identical with operator's sign of this AP storage, and as if identical, then execution in step 304; If not, then the pairing AP of this BSSID and this AP belong to respectively in the different AC compass of competency, and process ends;
Whether step 304, the access controller sign that contrasts among this BSSID be identical with the access controller sign of this AP storage, as if identical, and then in the same AC compass of competency of the pairing AP of this BSSID and this AP, and process ends; If inequality, then the pairing AP of this BSSID and this AP belong to respectively in the different AC compass of competency, and process ends.
Wherein, If the operator's sign that contrasts among this BSSID is identical with operator's sign of this AP storage; And the access controller sign that contrasts among this BSSID is identical with the access controller sign of this AP storage, explains that then the pairing AP of this BSSID and this AP belong in the compass of competency of same AC; If the operator's sign that contrasts among this BSSID is inequality with operator's sign of this AP storage; And/or; If the access controller sign that contrasts among this BSSID is inequality with the access controller sign of this AP storage, explain that then the pairing AP of this BSSID and this AP are in respectively in the different AC compasss of competency.
In the embodiment of the invention, the sequencing of above-mentioned steps 303 with step 304 do not limited.
In the method for the identification access point identity that the embodiment of the invention provides; The BSSID of access point comprises operator's sign and access controller sign at least; The overall MAC Address that has replaced application; In discerning AP and this AP belongs to same AC compass of competency or when belonging in the different AC compasss of competency respectively, can reduce BSSID taking to the MAC Address resource.
Embodiment three:
See also Fig. 4 a, Fig. 4 a is the flow chart of the method for the another kind identification access point identity that provides in the embodiment of the invention.Shown in Fig. 4 a, this method can comprise:
The carrier ID of this AP that step 401, AP reception AC issue, AC ID, AP ID, radio frequency identification (Radio ID) and storage;
Shown in Fig. 4 b, in BSS, 1 AC can manage a plurality of AP; General capacity Network Based and compatible consideration, an AP has a plurality of radio frequency Radio; VAP is based on the management object of radio frequency, so an AP can respectively provide a plurality of VAP services on different radio frequencies.
Step 402, AP receive the VAP sign that AC issues, if this VAP sign value is 0, and then directly storage; If this VAP sign value is non-0, then this VAP sign is subtracted 1 and storage;
The self-defining BSSID of this AP is as shown in table 2, and this self-defining BSSID has in fact identified wireless network architecture.
Table 2
Byte/bit 1bit(LSB) ?1bit(LSB) 12bit 12bit 15bit 3bit 4bit
Implication I/G U/L Carrier ID AC?ID AP?ID Radio?ID VAP?ID
The scope value 0(I) 1(L) 0～4k-1 ?0～4k-1 0～32k-1 0～7 0～15
Wherein, the I/G position among this BSSID is 0, and the U/L position is 1, if show that this BSSID is local unicast address.
BSSID in the literary composition that access point is transmitted messages around step 403, AP collect, this BSSID comprises the carrier ID and the AC ID of this access point at least;
Step 404, judge whether this BSSID is local unicast address, if then execution in step 405; If not, then the pairing AP of this BSSID and this AP belong to respectively in the different AC compass of competency, and process ends;
Whether step 405, the carrier ID that contrasts carrier ID and this AP storage among this BSSID be identical, if identical, then execution in step 406; If not, then the pairing AP of this BSSID and this AP belong to respectively in the different AC compass of competency, and process ends;
Whether step 406, the AC ID that contrasts AC ID and this AP storage among this BSSID be identical, if identical, then the pairing AP of this BSSID and this AP belong in the same AC compass of competency, and execution in step 407; If inequality, then the pairing AP of this BSSID and this AP belong to respectively in the different AC compass of competency, and process ends;
If the pairing AP of this BSSID and this AP belong in the same AC compass of competency, then AC can take all factors into consideration the optimization communication channel when operation radio frequency adjustment optimized Algorithm; If the pairing AP of this BSSID and this AP belong in the different AC compass of competency, then AC can't issue any instruction of optimizing communication channel to the pairing AP of this BSSID, is easy to like this communication of the AP in this AC scope is caused interference.
Whether step 407, the AP ID that contrasts AP ID and this AP storage among this BSSID be identical, if identical, then the pairing AP of this BSSID and this AP are same access point; If inequality, then the pairing AP of this BSSID and this AP belong in the same AC administration, and process ends.
After judging the pairing AP of this BSSID and this AP and being same access point, can explain that above-mentioned message is sent on other radio frequencies by this AP.
In embodiments of the present invention, the BSSID of access point comprises carrier ID and AC ID at least, has replaced the overall MAC Address of application, thereby has reduced taking of MAC Address resource.
Embodiment four:
See also Fig. 5, Fig. 5 is the structure chart of a kind of access point of providing in the embodiment of the invention.As shown in Figure 5, this access point can comprise:
Information acquisition module 501 is used for after receiving message, obtaining the BSSID in this message, and this BSSID comprises the carrier ID of second access point that sends above-mentioned message and the ACID of second access point;
The first contrast module 502; Be used for above-mentioned carrier ID and AC ID and this access point canned data are compared; If the AC ID that above-mentioned carrier ID is identical and above-mentioned with the carrier ID of this access point storage is identical with the AC ID of this access point storage, judge that then above-mentioned second access point and this access point belong in the same AC compass of competency.Otherwise if the carrier ID of above-mentioned carrier ID and this access point storage is inequality, and/or above-mentioned AC ID is inequality with the AC ID that this access point is stored, and judges that then above-mentioned second access point and this access point belong in the different AC compass of competency.
Please consult Fig. 6 in the lump, Fig. 6 is the structural representation of the another kind of access point that provides in the embodiment of the invention.Access point shown in Figure 6 is further to be optimized by access point shown in Figure 5 to obtain, and access point shown in Figure 6 can determine further whether collected BSSID sent by other radio frequencies of this access point.As shown in Figure 6, this access point can also comprise:
The second contrast module 503; Be used for when the first contrast module 502 judges that above-mentioned second access points and this access point belong to same AC compass of competency; Whether the AP ID that contrasts among this BSSID is identical with the AP ID of this access point storage; If identical, judge that then above-mentioned second access point and this access point are same access point.Otherwise, in the same AC compass of competency of above-mentioned second access point and this access point.
Wherein, if the AP ID of contrast among this BSSID is identical with the AP ID of this AP storage, explain that the pairing AP of this BSSID and this AP are same AP, this BSSID of collecting of this AP promptly is by other radio frequencies transmissions of this AP at this moment; If the APID of the AP ID among this BSSID of contrast and this AP storage is inequality, explain that the pairing AP of this BSSID and this AP are under the same AC administration.
Wherein, this BSSID comprises that also this access point launches the Radio ID of above-mentioned message, and the corresponding VAP ID of this BSSID.
As shown in Figure 6, this access point can also comprise:
Memory module 504 is used for before the BSSID of the literary composition that access point is transmitted messages around information acquisition module 501 is collected the carrier ID of this AP that reception AC issues, AC ID, AP ID and RadioID and storage; And receive the VAP ID that AC issues, and if this VAP ID value is 0, then storage; If this VAP ID value is non-0, then this VAPID is subtracted 1 and storage, thereby can constitute the BSSID of this AP shown in above-mentioned table 2.
In the AP that the embodiment of the invention provides, the BSSID of access point has comprised carrier ID and AC ID at least, has replaced the overall MAC Address of application, thereby has reduced taking of MAC Address resource.
Embodiment five:
See also Fig. 7; Fig. 7 is the flow chart of a kind of workstation roaming method of providing in the embodiment of the invention, and it is example that present embodiment roams to an AP with work station from the 2nd AP, introduces the workstation roaming method that the embodiment of the invention provides; Wherein, The one AP is controlled by an AC, and the 2nd AP possibly controlled by an AC, controlled by the 2nd AC.As shown in Figure 7, this method can comprise:
Step 701, an AC receive the roaming request of at least one work station that an AP reports, and this roaming request has been carried BSSID and the BSSID of an AP of the 2nd AP at this current place of work station;
Related work station can be communicating terminals such as mobile phone, PC in the embodiment of the invention.
Wherein, the BSSID of the 2nd AP comprises carrier ID and the AC ID of the 2nd AP at least; The BSSID of the one AP comprises carrier ID and the AC ID of an AP at least;
Wherein, the BSSID of the BSSID of the 2nd AP and an AP is carried at reassociation requests by the work station that is arranged in the 2nd AP to be sent to an AP's; The BSSID of the one AP is through the literary composition acquisition of transmitting messages of the AP around collecting by the work station that is positioned at the 2nd AP.
Step 702, an AC judge whether the carrier ID of an AP is consistent with AC ID and the last canned data of an AC, obtains first result of determination; And whether the carrier ID of judging the 2nd AP is consistent with AC ID and the last canned data of an AC, obtains second result of determination; If it is consistent that first result of determination and second result of determination are, then to execution in step 703; Otherwise if first result of determination and/or second result of determination are inconsistent, then execution in step 705;
Wherein, can the carrier ID of an AP and the carrier ID of AC configuration be compared, and, obtain first result of determination the AC ID of an AP and the AC ID of AC configuration; Can the carrier ID of the 2nd AP and the carrier ID of AC configuration be compared, and, obtain second result of determination the AC ID of the 2nd AP and the AC ID of AC configuration.
This work station and the related information of the 2nd AP of step 703, deletion the one AC configuration, and send the message of this work station information of deletion to the 2nd AP;
Step 704, after sending the message of this work station information of deletion to the 2nd AP; Increase the related information of this work station and an AP; And to the related message of AP transmission this work station of permission, thereby realize this workstation roaming to the AP, and process ends;
Step 705, inconsistent as if first result of determination and/or second result of determination; The AC message of sending deletion the 2nd AP and the related information of this work station to the 2nd AC at the 2nd AP place then is so that the 2nd AC deletes the related information of the 2nd AP and this work station and the message of deleting this work station information to the 2nd AP transmission;
Step 706, an AC increase the related information of this work station and an AP, and send the message that allows this work station related to an AP, thereby realize this workstation roaming to the AP, and process ends.
Wherein, an AC specifically comprises to the message that the 2nd AC of the 2nd AP at this current place of work station sends the related information of deletion the 2nd AP and this work station:
The communication information of the 2nd AC that carrier ID that the one AC comprises according to the BSSID of the 2nd AP at this current place of work station and AC ID determine the 2nd AP, for example Internet protocol (IP) address etc.;
Send the message of the related information of deletion the 2nd AP and this work station to the 2nd AC of the 2nd AP according to the communication information of the 2nd AC.
In the workstation roaming method that the embodiment of the invention provides, the BSSID of access point has comprised carrier ID and AC ID at least, has replaced the overall MAC Address of application, thereby has reduced taking of MAC Address resource.
Embodiment six:
See also Fig. 8, Fig. 8 is the structure chart of a kind of access controller of providing in the embodiment of the invention.As shown in Figure 8, the access controller that the embodiment of the invention provides can comprise:
Receiver module 801 is used to receive the roaming request of at least one work station that an AP reports, and this roaming request has been carried BSSID and the BSSID of an AP of the 2nd AP at this current place of work station;
Wherein, the BSSID of the 2nd AP comprises carrier ID and the AC ID of the 2nd AP at least; The BSSID of the one AP comprises carrier ID and the AC ID of an AP at least;
Wherein, the BSSID of the BSSID of the 2nd AP and an AP is carried at reassociation requests by this work station that is arranged in the 2nd AP to be sent to an AP's; The BSSID of the one AP is through the literary composition acquisition of transmitting messages of the AP around collecting by this work station that is positioned at the 2nd AP.
Comparison module 802 is used to judge whether the carrier ID of an AP is consistent with AC ID and the last canned data of this AC, obtains first result of determination; And whether the carrier ID of judging the 2nd AP is consistent with AC ID and the last canned data of this AC, obtains second judged result;
Wherein, comparison module 702 can compare the carrier ID of an AP and the carrier ID of AC configuration, and with the AC ID of an AP and the AC ID of AC configuration, obtains first result of determination; Can the carrier ID of the 2nd AP and the carrier ID of AC configuration be compared, and, obtain second result of determination the AC ID of the 2nd AP and the AC ID of AC configuration.
First processing module 803 is used for when first result of determination of comparison module 802 and second result of determination are all consistent, delete this work station and the related information of the 2nd AP of this AC configuration, and deleting the message of work station information to the 2nd AP transmission;
Second processing module 804; Be used in first processing module 803 after the 2nd AP sends the message of deletion work station information; Increase the related information of this work station and an AP, and send the message that allows this work station related, thereby realize this workstation roaming to the AP to an AP.
Please consult Fig. 9 in the lump, Fig. 9 is the structure chart of the another kind of access controller that provides in the embodiment of the invention.Access controller shown in Figure 9 is to be obtained by access controller optimization shown in Figure 8.As shown in Figure 9, this access controller can also comprise:
The 3rd processing module 805; Be connected with comparison module 802; Be used for when first result of determination of comparison module 802 and/or second result of determination are inconsistent; The message of sending deletion the 2nd AP and the related information of this work station to the 2nd AC at the 2nd AP place is so that the 2nd AC at the 2nd AP place deletes the related information of the 2nd AP and this work station and the message of deleting this work station information to the 2nd AP transmission.
Manages module 806 everywhere; Be used in the 3rd processing module 805 after the 2nd AC sends the message of the related information of deleting the 2nd AP and this work station; Increase the related information of this work station and an AP; And to the related message of AP transmission this work station of permission, thereby realize this workstation roaming to the AP.
In the AC that the embodiment of the invention provides, the BSSID of access point has comprised carrier ID and AC ID at least, has replaced the overall MAC Address of application, thereby has reduced taking of MAC Address resource.
Embodiment seven:
See also Figure 10, Figure 10 is the structure chart of a kind of communication system of providing in the embodiment of the invention.Shown in figure 10, this communication system can comprise first access point 1001 and second access point 1002, wherein,
Second access point 1002 is used to send message, and this message comprises BSSID, and this BSSID comprises the carrier ID of second access point 1002 and the AC ID of second access point 1002;
First access point 1001; Be used to receive above-mentioned message and obtain BSSID; Carrier ID among this BSSID and AC ID and first access point, 1001 canned datas are compared; If the AC ID that the carrier ID of the carrier ID among this BSSID and the storage of first access point 1001 is identical and AC ID and first access point 1001 are stored are identical, judge that then first access point 1001 and second access point 1002 belong in the same AC compass of competency.
Preferably; Above-mentioned BSSID can also comprise the AP ID of second access point 1002; Then first access point 1001 is used to also to judge whether the AP ID that above-mentioned BSSID comprises is identical with the AP ID of first access point, 1001 storages; If identical, judge that then second access point 1002 and first access point 1001 are same access point.
In the AC that the embodiment of the invention provides, the BSSID of access point has comprised carrier ID and AC ID at least, has replaced the overall MAC Address of application, thereby has reduced taking of MAC Address resource.
Embodiment eight:
See also Figure 11, Figure 11 is the structure chart of a kind of workstation roaming system that provides in the embodiment of the invention.Shown in figure 11; The workstation roaming system that the embodiment of the invention provides can comprise first access point 1101; Second access point 1102; And first access controller 1103 that is used to control first access point 1101, second access point 1102, and at least one work station that is positioned at second access point 1102; Wherein, at least one work station need roam to first access point 1101.
First access point 1101, the roaming request of at least one work station that is used for reporting to first access controller 1103;
Wherein, above-mentioned roaming request has been carried BSSID and the BSSID of first access point 1101 of second access point 1102 at this current place of work station; The BSSID of second access point 1102 comprises the carrier ID and the AC ID of second access point 1102 at least; The BSSID of first access point 1101 comprises the carrier ID and the AC ID of first access point 1101 at least;
Wherein, the BSSID of the BSSID of second access point 1102 and first access point 1101 is carried at reassociation requests by the work station that is arranged in second access point 1102 to be sent to first access point 1101; The BSSID of first access point 1101 is through the literary composition acquisition of transmitting messages of the AP around collecting by the work station that is positioned at second access point 1102.
First access controller 1103; Be used to receive the roaming request of at least one work station that first access point 1101 reports; And whether canned data is consistent on the carrier ID of judging first access point 1101 that this roaming request is carried and ACID and first access controller 1103, obtains first result of determination; And whether canned data is consistent on the carrier ID of judging second access point 1102 that this roaming request is carried and AC ID and first access controller 1103, obtains second result of determination; If it is consistent that first result of determination and second result of determination are, then delete this work station and the related information of second access point 1102 of first access controller, 1103 configurations, and send the message of these work station information of deletion to second access point 1102; Increase the related information of this work station and first access point 1101, and send the message that allows this work station related to first access point 1101;
Second access point 1102 is used to receive the message of this work station information of deletion that first access controller 1103 sends, with this work station information deletion;
First access point 1101 also is used to receive related message and related this work station of permission work station that first access controller 1103 sends, thereby realizes this workstation roaming to the first access point 1101.
See also Figure 12, Figure 12 is the structure chart of the another kind of workstation roaming system that provides in the embodiment of the invention.Shown in figure 12; The workstation roaming system that the embodiment of the invention provides can comprise first access point 1101; Second access point 1102; Be used to control first access controller 1103 of first access point 1101, and second access controller 1104 that is used to control second access point 1102, and at least one work station that is positioned at second access point 1102; Wherein, at least one work station need roam to first access point 1101.Wherein,
Second access controller 1104; Be used to receive the message of deletion second access point 1102 that first access controller 1103 sends and the related information of above-mentioned work station; Second access point 1102 and the related information of above-mentioned work station are deleted, and sent the message of the above-mentioned work station information of deletion to second access point 1102;
Second access point 1102 is used to receive the message of the above-mentioned work station information of deletion that second access controller 1104 sends, with above-mentioned work station information deletion;
First access controller 1103; Be used for when above-mentioned first result of determination and/or second result of determination are inconsistent; Increase the related information of the above-mentioned work station and first access point 1101; And the message of sending deletion second access point 1102 and the related information of above-mentioned work station to second access controller 1104, and send the message that allows above-mentioned work stations related to first access point 1101;
First access point 1101 is used to receive related message and the related above-mentioned work station of permission work station that first access controller 1103 sends, thereby realizes above-mentioned workstation roaming to above-mentioned first access point.
In the workstation roaming system that the embodiment of the invention provides, the BSSID of access point has comprised carrier ID and AC ID at least, has replaced the overall MAC Address of application, thereby has reduced taking of MAC Address resource.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: read-only memory (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), various media that can be program code stored such as magnetic disc or CD.
More than a kind of access point recognition methods, workstation roaming method and relevant device that the embodiment of the invention provided have been carried out detailed introduction; Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change to sum up can get, and this description should not be construed as limitation of the present invention.

Claims (14)

1. a method of discerning access point identity is characterized in that, comprising:
First access point obtains the basic service set identification BSSID in the said message after receiving message, and said BSSID comprises the operator's sign of second access point that sends said message and the access controller sign of said second access point;
Said operator sign and access controller sign are compared with the said first access point canned data; If said operator sign is identical with the access controller sign that the operator of said first access point storage identifies identical and said access controller sign and the storage of said first access point, judge that then said first access point and said second access point belong in the same compass of competency.
2. method according to claim 1 is characterized in that said BSSID also comprises the access point identity of said second access point, and then said method also comprises:
Judge that whether said access point identity is identical with the access point identity of said first access point storage, if identical, judges that then said second access point and said first access point are same access point.
3. method according to claim 2 is characterized in that, said BSSID comprises that also said second access point launches the radio frequency identification of said message, and said BSSID corresponding virtual access point identity.
4. method according to claim 3 is characterized in that, said first access point obtains before the BSSID in the said message, also comprises:
Operator's sign of the access point that said first access point receives and the storage access controller issues, access controller sign, access point identity, radio frequency identification and virtual access point sign.
5. an access point is characterized in that, comprising:
The information acquisition module is used for after receiving message, obtaining the basic service set identification BSSID in the said message, and said BSSID comprises the operator's sign of second access point that sends said message and the access controller sign of said second access point;
The first contrast module; Be used for said operator sign and access controller sign are compared with this access point canned data; If said operator sign is identical with the access controller sign that the operator of this access point storage identifies identical and said access controller sign and the storage of this access point, judge that then said second access point and this access point belong in the same compass of competency.
6. access point according to claim 5 is characterized in that said BSSID also comprises the access point identity of second access point, and said access point also comprises:
The second contrast module; Be used for when the said first contrast module judges that said second access point and this access point belong to same compass of competency; Whether contrast said access point identity identical with the access point identity of this access point storage; If identical, judge that then said second access point and this access point are same access point.
7. a communication system comprises first access point and second access point, it is characterized in that,
Said second access point is used to send message, and said message comprises basic service set identification BSSID, and said BSSID comprises the operator's sign of said second access point and the access controller sign of said second access point;
Said first access point; Be used to receive said message; Obtain said BSSID; Operator among said BSSID sign and access controller sign are compared with the said first access point canned data, identical if the access controller that operator's sign of said operator sign and said first access point storage is identical and said access controller sign and said first access point are stored identifies, judge that then said first access point and said second access point belong in the same compass of competency.
8. system according to claim 7; It is characterized in that; Said BSSID also comprises the access point identity of said second access point; Said first access point is used to also judge whether said access point identity is identical with the access point identity of said first access point storage, if identical, judges that then said second access point and said first access point are same access point.
9. a workstation roaming method is characterized in that, comprising:
First access controller receives the roaming request of the work station that first access point reports, and said roaming request has been carried infrastructure service set identifier BSSID and the BSSID of said first access point of second access point at the current place of said work station; The BSSID of said second access point comprises the operator's sign and the access controller sign of said second access point; The BSSID of said first access point comprises the operator's sign and the access controller sign of said first access point;
The operator sign that said first access controller is judged said first access point and access controller identify with first access controller on canned data whether consistent, obtain first result of determination; And the operator sign of judging said second access point and access controller identify with first access controller on canned data whether consistent, obtain second result of determination;
If it is consistent that said first result of determination and said second result of determination are, then delete the said work station and the related information of second access point of said first access controller configuration, and send the message of deleting said work station information to said second access point;
Increase the related information of the said work station and first access point, and send the message that allows said work station related, thereby realize said workstation roaming to said first access point to said first access point.
10. workstation roaming method according to claim 9 is characterized in that, also comprises:
If said first result of determination is inconsistent; And/or said second result of determination is inconsistent; The message that then said first access controller sends said second access point of deletion and the related information of said work station to second access controller at said second access point place is so that said second access controller is deleted the related information of said second access point and said work station and the message of deleting said work station information to said second access point transmission;
First access controller increases the related information of the said work station and first access point, and sends the message that allows said work station related to said first access point, thereby realizes said workstation roaming to said first access point.
11. an access controller is characterized in that, comprising:
Receiver module is used to receive the roaming request of the said work station that said first access point reports, and said roaming request has been carried infrastructure service set identifier BSSID and the BSSID of said first access point of second access point at the current place of said work station; The BSSID of said second access point comprises the operator's sign and the access controller sign of said second access point; The BSSID of said first access point comprises the operator's sign and the access controller sign of said first access point;
Comparison module, the operator's sign that is used to judge said first access point and access controller identify with access controller on canned data whether consistent, obtain first result of determination; And the operator sign of judging said second access point and access controller identify with said access controller on canned data whether consistent, obtain second result of determination;
First processing module; Be used for being when identical in said first result of determination and said second result of determination; Delete the said work station of access controller configuration and the related information of second access point, and send the message of the said work station information of deletion to said second access point;
Second processing module; Be used in said first processing module after said second access point sends the message of the said work station information of deletion; Increase the related information of the said work station and first access point; And to the related message of the said said work station of first access point transmission permission, thereby realize said workstation roaming to said first access point.
12. access controller according to claim 11 is characterized in that, also comprises:
The 3rd processing module; Be used in said first result of determination inconsistent; And/or said second result of determination is when inconsistent; The message of sending said second access point of deletion and the related information of said work station to said second access controller is so that said second access controller is deleted the related information of said second access point and said work station and the message of deleting said work station information to said second access point transmission;
Manages module everywhere; Be used in said the 3rd processing module after said second access controller sends the message of the related information of deleting said second access point and said work station; Increase the related information of the said work station and first access point; And to the related message of the said said work station of first access point transmission permission, thereby realize said workstation roaming to said first access point.
13. a workstation roaming system comprises first access point, is used to control first access controller of said first access point, second access point and at least one workbench that is positioned at said second access point is characterized in that,
Said first access point is used for reporting to said first access controller roaming request of said at least one work station, and said roaming request has been carried the infrastructure service set identifier BSSID of said second access point and the BSSID of said first access point; The BSSID of said second access point comprises the operator's sign and the access controller sign of said second access point at least; The BSSID of said first access point comprises the operator's sign and the access controller sign of said first access point at least;
Said first access controller; Be used to receive the roaming request of said at least one work station that said first access point reports; And the operator sign of judging said first access point that said roaming request is carried and access controller identify with first access controller on canned data whether consistent, obtain first result of determination; And the operator sign of judging said second access point that said roaming request is carried and access controller identify with first access controller on canned data whether consistent, obtain second result of determination; If it is consistent that said first result of determination and said second result of determination are, then delete the said work station and the related information of second access point of first access controller configuration, and send the message of deleting said work station information to said second access point; Increase the related information of the said work station and first access point, and send the message that allows said work station related to said first access point;
Said second access point is used to receive the message of the said work station information of deletion that said first access controller sends, with said work station information deletion;
Said first access point also is used to receive related message and the related said work station of permission work station that said first access controller sends, thereby realizes said workstation roaming to said first access point.
14. workstation roaming according to claim 13 system is characterized in that, also comprises second access controller that is used to control said second access point;
Said second access controller; Be used to receive the message of the related information of said second access point of deletion that said first access controller sends and said work station; The related information of said second access point and said work station is deleted, and sent the message of the said work station information of deletion to said second access point;
Said second access point is used to receive the message of the said work station information of deletion that said second access controller sends, with said work station information deletion;
Said first access controller; Also be used in said first result of determination inconsistent; And/or said second result of determination is when inconsistent; Increase the related information of said work station and said first access point, and the message of sending said second access point of deletion and the related information of said work station to said second access controller, and send the message that allows said work station association to said first access point;
Said first access point is used to receive related message and the related said work station of permission work station that said first access controller sends, thereby realizes said workstation roaming to said first access point.
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