CN102883301A - Method and device for forcing client to roam and access controller - Google Patents
Method and device for forcing client to roam and access controller Download PDFInfo
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- CN102883301A CN102883301A CN2012103536172A CN201210353617A CN102883301A CN 102883301 A CN102883301 A CN 102883301A CN 2012103536172 A CN2012103536172 A CN 2012103536172A CN 201210353617 A CN201210353617 A CN 201210353617A CN 102883301 A CN102883301 A CN 102883301A
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Abstract
The invention provides a method and a device for forcing a client to roam and an access controller. The method for forcing the client to roam comprises the following steps of: by the access controller, acquiring a media access control MAC address of the client which needs to be forced to roam; sending the MAC address to adjacent wireless access equipment of first wireless access equipment and indicating the adjacent wireless access equipment to detect a receiving signal strength of the adjacent wireless access equipment on the client with the MAC address; receiving a detection result reported by the adjacent wireless access equipment and according to the detection result, determining that the client with the MAC address can roam; and indicating the first wireless access equipment to reduce a message signal strength which is sent to the client which can roam and indicating the first wireless access equipment not to reply an acknowledgement frame to a message from the client which can roam. According to the invention, the effect of forcing the client to roam can be implemented, so that the network performance can be optimized.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of method, device and access controller of forcing the client roaming.
Background technology
WLAN (wireless local area network) (Wireless Local Area Network; Hereinafter to be referred as: being the computer local network of making transmission medium with wireless channel WLAN), is the product that computer network combines with wireless communication technology.Adopt wireless mode that the function of traditional cable LAN is provided, can make the user real realize at any time, everywhere, random Broadband Network Access.
WAP (wireless access point) (Access Point; Hereinafter to be referred as: AP) be equivalent to a bridge that is connected with spider lines and wireless network, its Main Function is that each wireless client is linked together, then with the wireless network access network based on ethernet.Wireless client is generally the computer that possesses wireless network card, by AP access WLAN.
For the transmission of all Frames and management frames among the WLAN, the recipient should send to transmit leg and confirm (Acknowledge after confirming to receive correctly; Hereinafter to be referred as: ACK) frame represents to confirm.If do not receive the ACK frame, transmit leg will initiate to retransmit.
Among the WLAN in order to allow AP and client (Station; Hereinafter to be referred as: STA) find mutually, have two kinds of scan modes, a kind of is to use AP to send beacon (Beacon) frame, and STA will find AP after receiving the Beacon frame, and obtains the relevant parameter of AP, is called drive sweep; Another kind is that STA sends probe request, and AP replys probing response frame, and STA receives probing response frame will find AP, and obtains the relevant parameter of AP, is called active scan.
Roaming among the present WLAN is mainly initiated by STA, when STA judges that communication quality is relatively poor, when perhaps the signal strength signal intensity of AP is low, STA will begin roaming, usually STA can initiate active scan, and which AP the affirmation scene has can be related, then selects the high AP of signal strength signal intensity to carry out association.
But, this loaming method exists the determination methods of following problem: STA to differ, some can be very sensitive, for example: just retransmit when retransmission rate is higher than 20%, perhaps the signal strength signal intensity of AP is lower than-just roaming of 70dbm, some is then very insensitive, for example: when retransmission rate is higher than 50%, perhaps the signal strength signal intensity of AP be lower than-80dbm just roams.Like this, if STA is associated on the lower AP of signal strength signal intensity, and the determination methods of this STA is insensitive, the signal strength signal intensity of AP or the retransmission rate of this STA do not meet the roaming conditions of this STA, so this STA can initiative roaming, and AP also can't initiatively allow the STA roaming, like this because the signal strength signal intensity of AP is lower, therefore communicating by letter between STA and the AP can only be adopted the lower message of Link speed, thereby causes the performance of the entire network variation, brings network problem.
Summary of the invention
The invention provides a kind of method, device and access controller of forcing the client roaming, to realize client being carried out forced roaming, the optimized network performance.
One aspect of the present invention provides a kind of method of forcing the client roaming, comprising:
The access controller acquisition need to be carried out the media access control MAC address of the client of forced roaming, and the client that described needs carry out forced roaming is the client of the first radio reception device association;
Described access controller sends to described MAC Address the adjacent radio reception device of described the first radio reception device, and indicates described adjacent radio reception device to detect described adjacent radio reception device to the received signal strength of client with described MAC Address;
Described access controller receives the testing result that described adjacent radio reception device reports, according to described testing result, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, and then described access controller determines that the client with described MAC Address can roam;
Described access controller indicates described the first radio reception device to reduce the message signals intensity that is sent to the client that can roam, and indicate described the first radio reception device that the message from the described client that can roam is not replied acknowledgement frame, roam to force the described client that can roam.
The present invention provides a kind of method of forcing the client roaming on the other hand, comprising:
The first radio reception device sends the media access control MAC address to access controller, and described MAC Address is the MAC Address that the needs of described the first radio reception device selection carry out the client of forced roaming;
Described the first radio reception device receives the indication that described access controller sends, reduce the message signals intensity that is sent to the client that to roam according to described indication, and the message from the described client that can roam is not replied acknowledgement frame, roam to force the described client that can roam;
Described indication is the adjacent radio reception device that described access controller sends to described MAC Address described the first radio reception device, indicate described adjacent radio reception device to detect described adjacent radio reception device to the received signal strength of client with described MAC Address, receive the testing result that described adjacent radio reception device reports, according to described testing result, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, after the client of then determining to have described MAC Address can be roamed, send to described the first radio reception device.
Further aspect of the present invention provides a kind of device of forcing the client roaming, is arranged in the access controller, and described device comprises: obtain module, sending module, indicating module, receiver module and determination module;
Described acquisition module is used for the media access control MAC address that acquisition need to be carried out the client of forced roaming, and the client that described needs carry out forced roaming is the client of the first radio reception device association;
Described sending module is used for the MAC Address that described acquisition module obtains is sent to the adjacent radio reception device of described the first radio reception device;
Described indicating module is used to indicate described adjacent radio reception device and detects described adjacent radio reception device to the received signal strength of client with described MAC Address; And after the client that described determination module determines to have described MAC Address can be roamed, indicate described the first radio reception device to reduce the message signals intensity that is sent to the definite client that can roam of described determination module, and indicate described the first radio reception device to not replying acknowledgement frame from the message of the definite client that can roam of described determination module, roam to force the described client that can roam;
Described receiver module is used for receiving the testing result that described adjacent radio reception device reports;
Described determination module, be used for the testing result according to described receiver module reception, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, determines that then the client with described MAC Address can roam.
Further aspect of the present invention provides a kind of access controller, comprises the device of aforesaid pressure client roaming.
Further aspect of the present invention provides a kind of device of forcing the client roaming, is arranged in the radio reception device, and described device comprises:
The address sending module is used for sending the media access control MAC address to access controller, and described MAC Address is the MAC Address that the needs of described radio reception device selection carry out the client of forced roaming;
The indication receiver module is used for receiving the indication that described access controller sends;
The forced roaming module, the indication that is used for receiving according to described indication receiver module reduces the message signals intensity that is sent to the client that can roam, and the message from the described client that can roam is not replied acknowledgement frame, roam to force the described client that can roam;
The indication that described indication receiver module receives is the adjacent radio reception device that described access controller sends to described MAC Address described radio reception device, indicate described adjacent radio reception device to detect described adjacent radio reception device to the received signal strength of client with described MAC Address, receive the testing result that described adjacent radio reception device reports, according to described testing result, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the radio reception device of Second Threshold, and the client of then determining to have described MAC Address sends after can roaming.
Further aspect of the present invention provides a kind of radio reception device, comprises the device of aforesaid pressure client roaming.
Technique effect of the present invention is: the needs that access controller obtains the first radio reception device association carry out the MAC Address of the client of forced roaming, indicate the adjacent radio reception device of the first radio reception device to detect above-mentioned adjacent radio reception device to the received signal strength of client with above-mentioned MAC Address; If exist received signal strength to client with above-mentioned MAC Address more than or equal to first threshold in the above-mentioned adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, and then access controller determines that the client with above-mentioned MAC Address can roam; Then, access controller indicates the first radio reception device to reduce the message signals intensity that is sent to the client that can roam, and indicate the first radio reception device that the message from the client that can roam is not replied acknowledgement frame, roam to force the above-mentioned client that can roam; Thereby can realize forcing client to be roamed, and then can the optimized network performance.
Description of drawings
Fig. 1 is the flow chart that the present invention forces an embodiment of method of client roaming;
Fig. 2 is the flow chart that the present invention forces another embodiment of method of client roaming;
Fig. 3 is the flow chart that the present invention forces another embodiment of method of client roaming;
Fig. 4 is the structural representation that the present invention forces an embodiment of device of client roaming;
Fig. 5 is the structural representation that the present invention forces another embodiment of device of client roaming;
Fig. 6 is the structural representation that the present invention forces another embodiment of device of client roaming.
Embodiment
Fig. 1 is the flow chart that the present invention forces an embodiment of method of client roaming, and as shown in Figure 1, the method for this pressure client roaming can comprise:
Wherein, above-mentioned first threshold can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the present embodiment is not construed as limiting the size of first threshold, and for instance, this first threshold can be-70dbm.
Above-mentioned Second Threshold can configure according to system configuration and/or performance requirement etc. when specific implementation equally voluntarily, and the present embodiment is not construed as limiting the size of Second Threshold, and for instance, this Second Threshold can be 5.
Further, before the step 104, access controller can also determine that above-mentioned the second radio reception device is the purpose radio reception device of the client that can roam; Like this, after the step 104, access controller can also indicate in the radio reception device that this access controller connects other radio reception devices except the above-mentioned purpose radio reception device after the probe requests thereby that receives the client that can roam, do not respond this probe requests thereby, in order to only have the purpose radio reception device after the probe requests thereby that receives the above-mentioned client that can roam, respond this probe requests thereby.Particularly, access controller can be added to the MAC Address of the client that can roam in the blacklist of other radio reception devices except the above-mentioned purpose radio reception device in the radio reception device that this access controller connects, above-mentioned like this other radio reception devices receive after the probe requests thereby of the above-mentioned client that can roam, will can not respond this probe requests thereby.
Particularly, access controller determine above-mentioned the second radio reception device for the purpose radio reception device of the client that can roam can for: if above-mentioned the second radio reception device only has one, then access controller is determined the purpose radio reception device that this second radio reception device is the above-mentioned client that can roam; If above-mentioned the second radio reception device comprises at least two, then access controller determines that the second radio reception device to the received signal strength maximum of the above-mentioned client that can roam is the purpose radio reception device of the above-mentioned client that can roam.
Particularly, step 101 can receive the MAC Address that the first radio reception device sends for: access controller, and above-mentioned MAC Address is the MAC Address that needs that the first radio reception device is selected carry out the client of forced roaming; Perhaps, determine that when access controller the number of client of the first radio reception device association is more than or equal to the 3rd threshold value, and when the number that has related client in the adjacent radio reception device of the first radio reception device is less than or equal to the radio reception device of the 4th threshold value, access controller selects at least one client to carry out the client of forced roaming as needs from the client of the first radio reception device association, and obtains the MAC Address that above-mentioned needs carry out the client of forced roaming.
Wherein, above-mentioned the 3rd threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the present embodiment is not construed as limiting the size of the 3rd threshold value, and for instance, the 3rd threshold value can be 10.
Above-mentioned the 4th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation equally voluntarily, the present embodiment is not construed as limiting the size of the 4th threshold value, and the 4th threshold value can equal or be not equal to Second Threshold, for instance, the 4th threshold value can equate with Second Threshold, also is 5.
In above-described embodiment, the needs that access controller obtains the first radio reception device association carry out the MAC Address of the client of forced roaming, indicate the adjacent radio reception device of the first radio reception device to detect above-mentioned adjacent radio reception device to the received signal strength of client with above-mentioned MAC Address; If exist received signal strength to client with above-mentioned MAC Address more than or equal to first threshold in the above-mentioned adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, and then access controller determines that the client with above-mentioned MAC Address can roam; Then, access controller indicates the first radio reception device to reduce the message signals intensity that is sent to the client that can roam, and indicate the first radio reception device that the message from the client that can roam is not replied acknowledgement frame, roam to force the above-mentioned client that can roam; Thereby can realize forcing client to be roamed, and then can the optimized network performance.
Fig. 2 is the flow chart that the present invention forces another embodiment of method of client roaming, and as shown in Figure 2, the method for this client roaming can comprise:
Step 201, the first radio reception device sends MAC Address to access controller, and above-mentioned MAC Address is the MAC Address that the needs of the first radio reception device selection carry out the client of forced roaming.
Particularly, the first radio reception device select to carry out forced roaming client can for: when the number of the client of the first radio reception device association during more than or equal to the 5th threshold value, described the first radio reception device selects at least one client to carry out the client of forced roaming as needs from the client of described the first radio reception device association; Wherein, above-mentioned the 5th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, the 5th threshold value can equate with the 3rd threshold value during the present invention is embodiment illustrated in fig. 1 or not wait, the present embodiment is not construed as limiting the size of the 5th threshold value, for instance, the 5th threshold value can be 10;
Perhaps,
When the first radio reception device was less than or equal to the 6th threshold value to the received signal strength of at least one client of this first radio reception device association, the first radio reception device selected at least one client to carry out the client of forced roaming as needs; Wherein, above-mentioned the 6th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, the 6th threshold value can equate with the first threshold during the present invention is embodiment illustrated in fig. 1 or not wait, the present embodiment is not construed as limiting the size of the 6th threshold value, for instance, the 6th threshold value can be-70dbm;
Perhaps,
When the number of the client of the first radio reception device association more than or equal to the 7th threshold value, and when the first radio reception device was less than or equal to the 8th threshold value to the received signal strength of at least one client of this first radio reception device association, the first radio reception device selected above-mentioned at least one client to carry out the client of forced roaming as needs; Wherein, above-mentioned the 7th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the 7th threshold value can equate with the 5th threshold value or not wait, and the present embodiment is not construed as limiting the size of the 7th threshold value, for instance, the 7th threshold value can be 10; Above-mentioned the 8th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, the 8th threshold value can equate with the 6th threshold value or not wait, the present embodiment is not construed as limiting the size of the 8th threshold value, and for instance, the 8th threshold value can be-70dbm.
Step 202, the first radio reception device receives the indication that access controller sends, reduce the message signals intensity that is sent to the client that to roam according to above-mentioned indication, and to do not reply affirmation (ACK) frame from the message of the above-mentioned client that can roam, roam to force the above-mentioned client that can roam.
Wherein, above-mentioned indication is the adjacent radio reception device that access controller sends to above-mentioned MAC Address the first radio reception device, indicate above-mentioned adjacent radio reception device to detect this adjacent radio reception device to the received signal strength of client with above-mentioned MAC Address, receive the testing result that adjacent radio reception device reports, according to this testing result, if exist received signal strength to client with above-mentioned MAC Address more than or equal to first threshold in the above-mentioned adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, after the client of then determining to have above-mentioned MAC Address can be roamed, send to the first radio reception device.
In above-described embodiment, the MAC Address that the needs that the first radio reception device is selected this first radio reception device carry out the client of forced roaming sends to access controller, then receive the indication that access controller sends, reduce the message signals intensity that is sent to the client that to roam according to above-mentioned indication, and to do not reply affirmation (ACK) frame from the message of the above-mentioned client that can roam, roam to force the above-mentioned client that can roam; Thereby can realize forcing client to be roamed, and then can the optimized network performance.
Need to prove, " first " among the present invention and " second " do not represent what, performance good and bad and/or the priority implemented of quantity only for convenience of description, lower with.
Radio reception device among the present invention embodiment illustrated in figures 1 and 2 can have for AP etc. the equipment of wireless access function, and client can be STA etc., and the present invention is not construed as limiting the form of radio reception device and client.But following examples of the present invention are take radio reception device as AP, and client is that STA is that example describes.
Fig. 3 is the flow chart that the present invention forces another embodiment of method of client roaming, and as shown in Figure 3, the method for this pressure client roaming can comprise:
Particularly, access controller can receive the MAC Address that an AP sends, and above-mentioned MAC Address is the MAC Address that the needs of AP selection carry out the STA of forced roaming; Perhaps, determine that when access controller the number of STA of an AP association is more than or equal to the 3rd threshold value, and when the number that has related STA among the adjacent AP of an AP is less than or equal to the AP of the 4th threshold value, access controller can select at least one STA to carry out the STA of forced roaming as needs from the STA of an AP association, and obtains the MAC Address that above-mentioned needs carry out the STA of forced roaming.
Wherein, above-mentioned the 3rd threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the present embodiment is not construed as limiting the size of the 3rd threshold value, and for instance, the 3rd threshold value can be 10.
Above-mentioned the 4th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation equally voluntarily, and the present embodiment is not construed as limiting the size of the 4th threshold value, and for instance, the 4th threshold value can be 5.
Particularly, according to this testing result judge the STA with MAC Address that above-mentioned AC sends whether can roam can for: AC is according to above-mentioned testing result, if exist received signal strength to STA with MAC Address that above-mentioned AC sends more than or equal to first threshold among the above-mentioned adjacent AP, and the number of related STA is less than or equal to the 2nd AP of Second Threshold, and then the AC STA that determines to have the MAC Address that above-mentioned AC sends can roam; If there is not the 2nd AP that satisfies above-mentioned condition in above-mentioned adjacent AP, then the AC STA that determines to have the MAC Address that above-mentioned AC sends can not roam.
Wherein, above-mentioned first threshold can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the present embodiment is not construed as limiting the size of first threshold, and for instance, this first threshold can be-70dbm.
Above-mentioned Second Threshold can configure according to system configuration and/or performance requirement etc. when specific implementation equally voluntarily, this Second Threshold can equate with the 4th threshold value or not wait, the present embodiment is not construed as limiting the size of Second Threshold, and for instance, this Second Threshold can be 5.
Wherein, above-mentioned non-selected MAC Address is AC MAC Address except the MAC Address of having selected in the MAC Address that step 301 obtains.
Step 306, AC determines that above-mentioned the 2nd AP is the purpose AP of the STA that can roam.
Particularly, if above-mentioned the 2nd AP only has one, then AC determines that the 2nd AP is the purpose AP of the above-mentioned STA that can roam; If above-mentioned the 2nd AP comprises at least two, then AC determines that the 2nd AP to the received signal strength maximum of the above-mentioned STA that can roam is the purpose AP of the above-mentioned STA that can roam.
Step 308, AC indicates among the AP that this AC connects other AP except above-mentioned purpose AP after the probe requests thereby that receives the STA that can roam, do not respond this probe requests thereby, in order to only have purpose AP after the probe requests thereby that receives the above-mentioned STA that can roam, respond this probe requests thereby; The above-mentioned like this STA that can roam will carry out association with purpose AP, and roaming is just successful.
Particularly, AC can be added to the MAC Address of the STA that can roam in the blacklist of other AP except above-mentioned purpose AP among the AP that this AC connects, above-mentioned like this other AP receive after the probe requests thereby of the above-mentioned STA that can roam, will can not respond this probe requests thereby.So, only have purpose AP after the probe requests thereby that receives the above-mentioned STA that can roam, just can respond this probe requests thereby.
Above-described embodiment can be realized forcing client to be roamed, and then can the optimized network performance.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be finished by the relevant hardware of program command.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each embodiment of the method when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 4 is the structural representation that the present invention forces an embodiment of device of client roaming, the device of the pressure client roaming that the present embodiment provides is arranged in the access controller, can realize the flow process that the present invention is embodiment illustrated in fig. 1, as shown in Figure 4, this device can comprise: obtain module 41, sending module 42, indicating module 43, receiver module 44 and determination module 45;
Wherein, obtain module 41, be used for obtaining to carry out the MAC Address of the client of forced roaming, the client that above-mentioned needs carry out forced roaming is the client of the first radio reception device association; Particularly, obtain module 41 and can receive the MAC Address that the first radio reception device sends, this MAC Address is the MAC Address that the needs of the first radio reception device selection carry out the client of forced roaming; Perhaps, determine that when determination module 45 number of client of the first radio reception device associations is more than or equal to the 3rd threshold value, and when the number that has related client in the adjacent radio reception device of the first radio reception device is less than or equal to the radio reception device of the 4th threshold value, from the client of the first radio reception device association, select at least one client to carry out the client of forced roaming as needs, and obtain to carry out the MAC Address of the client of forced roaming;
Sending module 42, the MAC Address that is used for obtaining module 41 acquisitions sends to the adjacent radio reception device of the first radio reception device;
Indicating module 43 is used to indicate above-mentioned adjacent radio reception device and detects this adjacent radio reception device to the received signal strength of client with above-mentioned MAC Address; And after the client that determination module 45 determines to have above-mentioned MAC Address can be roamed, indicate the first radio reception device to reduce to be sent to the message signals intensity of the client that can roam that determination module 45 determines, and indicate above-mentioned the first radio reception device that the message of the client that can roam determined from determination module 45 is not replied acknowledgement frame, roam to force the above-mentioned client that can roam;
Further, determination module 45 also is used for the purpose radio reception device of determining that above-mentioned the second radio reception device is the above-mentioned client that can roam; Particularly, determination module 45 can be worked as the second radio reception device when only having one, determines that above-mentioned the second radio reception device is the purpose radio reception device of the client that can roam; Perhaps, when above-mentioned the second radio reception device comprises at least two, determine that the second radio reception device to the received signal strength maximum of the above-mentioned client that can roam is the purpose radio reception device of the above-mentioned client that can roam;
Indicating module 43, also be used to indicate in the radio reception device that above-mentioned access controller connects other radio reception devices except the purpose radio reception device after the probe requests thereby that receives the above-mentioned client that can roam, do not respond this probe requests thereby, in order to only have the above-mentioned purpose radio reception device after the probe requests thereby that receives the above-mentioned client that can roam, respond this probe requests thereby.
Wherein, above-mentioned first threshold can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the present embodiment is not construed as limiting the size of first threshold, and for instance, this first threshold can be-70dbm.
Above-mentioned Second Threshold can configure according to system configuration and/or performance requirement etc. when specific implementation equally voluntarily, and the present embodiment is not construed as limiting the size of Second Threshold, and for instance, this Second Threshold can be 5.
Wherein, above-mentioned the 3rd threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the present embodiment is not construed as limiting the size of the 3rd threshold value, and for instance, the 3rd threshold value can be 10.
Above-mentioned the 4th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation equally voluntarily, the present embodiment is not construed as limiting the size of the 4th threshold value, and the 4th threshold value can equal or be not equal to Second Threshold, for instance, the 4th threshold value can equate with Second Threshold, also is 5.
In the device of above-mentioned pressure client roaming, obtain the MAC Address that needs that module 41 obtains the first radio reception device association carry out the client of forced roaming, the adjacent radio reception device of indicating module 43 indications the first radio reception device detects above-mentioned adjacent radio reception device to the received signal strength of client with above-mentioned MAC Address; If exist received signal strength to client with above-mentioned MAC Address more than or equal to first threshold in the above-mentioned adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, and then determination module 45 determines that the client with above-mentioned MAC Address can roam; Then, indicating module 43 indications the first radio reception device reduces the message signals intensity that is sent to the client that can roam, and indicate the first radio reception device that the message from the client that can roam is not replied acknowledgement frame, roam to force the above-mentioned client that can roam; Thereby can realize forcing client to be roamed, and then can the optimized network performance.
Fig. 5 is the structural representation that the present invention forces another embodiment of device of client roaming, the device of the pressure client roaming that the present embodiment provides is arranged in the radio reception device, can realize the flow process that the present invention is embodiment illustrated in fig. 2, as shown in Figure 5, this device can comprise: address sending module 51, indication receiver module 52 and forced roaming module 53.
Wherein, address sending module 51 is used for sending MAC Address to access controller, and this MAC Address is the MAC Address that the needs of radio reception device selection carry out the client of forced roaming;
Wherein, the indication that indication receiver module 52 receives is the adjacent radio reception device that access controller sends to above-mentioned MAC Address radio reception device, indicate above-mentioned adjacent radio reception device to detect this adjacent radio reception device to the received signal strength of client with above-mentioned MAC Address, receive the testing result that above-mentioned adjacent radio reception device reports, according to this testing result, if exist received signal strength to client with above-mentioned MAC Address more than or equal to first threshold in the above-mentioned adjacent radio reception device, and the number of related client is less than or equal to the radio reception device of Second Threshold, and the client of then determining to have above-mentioned MAC Address sends after can roaming.
Wherein, above-mentioned first threshold can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, and the present embodiment is not construed as limiting the size of first threshold, and for instance, this first threshold can be-70dbm.
Above-mentioned Second Threshold can configure according to system configuration and/or performance requirement etc. when specific implementation equally voluntarily, and the present embodiment is not construed as limiting the size of Second Threshold, and for instance, this Second Threshold can be 5.
In above-described embodiment, the MAC Address that the needs that address sending module 51 is selected this first radio reception device carry out the client of forced roaming sends to access controller, then indicate receiver module 52 to receive the indication that access controller sends, forced roaming module 53 reduces the message signals intensity that is sent to the client that can roam according to above-mentioned indication, and to do not reply affirmation (ACK) frame from the message of the above-mentioned client that can roam, roam to force the above-mentioned client that can roam; Thereby can realize forcing client to be roamed, and then can the optimized network performance.
Fig. 6 is the structural representation that the present invention forces another embodiment of device of client roaming, compares with the device of pressure client roaming shown in Figure 5, and difference is, the device of pressure client roaming shown in Figure 6 can also comprise:
Wherein, above-mentioned the 5th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, the 5th threshold value can equate with the 3rd threshold value during the present invention is embodiment illustrated in fig. 4 or not wait, the present embodiment is not construed as limiting the size of the 5th threshold value, for instance, the 5th threshold value can be 10;
Above-mentioned the 6th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, the 6th threshold value can equate with the first threshold during the present invention is embodiment illustrated in fig. 5 or not wait, the present embodiment is not construed as limiting the size of the 6th threshold value, for instance, the 6th threshold value can be-70dbm;
Above-mentioned the 7th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, the 7th threshold value can equate with the 5th threshold value or not wait, the present embodiment is not construed as limiting the size of the 7th threshold value, and for instance, the 7th threshold value can be 10;
Above-mentioned the 8th threshold value can configure according to system configuration and/or performance requirement etc. when specific implementation voluntarily, the 8th threshold value can equate with the 6th threshold value or not wait, the present embodiment is not construed as limiting the size of the 8th threshold value, and for instance, the 8th threshold value can be-70dbm.
The device of above-mentioned pressure client roaming can be realized forcing client to be roamed, and then can the optimized network performance.
The present invention also provides a kind of access controller, and this access controller can comprise the device of the pressure client roaming that the present invention's illustrated embodiment shown in Figure 4 provides.
The present invention also provides a kind of radio reception device, and the device of Fig. 5 of the present invention or the pressure client roaming that provides embodiment illustrated in fig. 6 can be provided this radio reception device.Wherein, this radio reception device can have for AP etc. the equipment of wireless access function, and the present invention is not construed as limiting the form of radio reception device.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (14)
1. a method of forcing the client roaming is characterized in that, comprising:
The access controller acquisition need to be carried out the media access control MAC address of the client of forced roaming, and the client that described needs carry out forced roaming is the client of the first radio reception device association;
Described access controller sends to described MAC Address the adjacent radio reception device of described the first radio reception device, and indicates described adjacent radio reception device to detect described adjacent radio reception device to the received signal strength of client with described MAC Address;
Described access controller receives the testing result that described adjacent radio reception device reports, according to described testing result, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, and then described access controller determines that the client with described MAC Address can roam;
Described access controller indicates described the first radio reception device to reduce the message signals intensity that is sent to the client that can roam, and indicate described the first radio reception device that the message from the described client that can roam is not replied acknowledgement frame, roam to force the described client that can roam.
2. method according to claim 1, it is characterized in that, described access controller indicates described the first radio reception device to reduce the message signals intensity that is sent to the described client that can roam, and indicate described the first radio reception device to not replying from the message of the described client that can roam before the acknowledgement frame, also comprise:
Described access controller is determined the purpose radio reception device that described the second radio reception device is the described client that can roam;
Described access controller indicates described the first radio reception device to reduce the message signals intensity that is sent to the described client that can roam, and indicate described the first radio reception device to not replying from the message of the described client that can roam after the acknowledgement frame, also comprise:
Described access controller indicates in the radio reception device that described access controller connects other radio reception devices except described purpose radio reception device after the probe requests thereby that receives the described client that can roam, do not respond described probe requests thereby, in order to only have described purpose radio reception device after the probe requests thereby that receives the described client that can roam, respond described probe requests thereby.
3. method according to claim 2 is characterized in that, described access controller determines that the purpose radio reception device that described the second radio reception device is the described client that can roam comprises:
If described the second radio reception device only has one, then described access controller is determined the purpose radio reception device that described the second radio reception device is the described client that can roam;
If described the second radio reception device comprises at least two, then described access controller determines that the second radio reception device to the received signal strength maximum of the described client that can roam is the purpose radio reception device of the described client that can roam.
4. method according to claim 1 is characterized in that, the media access control MAC address that described access controller acquisition need to be carried out the client of forced roaming comprises:
Described access controller receives the MAC Address that the first radio reception device sends, and described MAC Address is the MAC Address that the needs of described the first radio reception device selection carry out the client of forced roaming; Perhaps,
Determine that when described access controller the number of client of the first radio reception device association is more than or equal to the 3rd threshold value, and when the number that has related client in the adjacent radio reception device of described the first radio reception device is less than or equal to the radio reception device of the 4th threshold value, described access controller selects at least one client to carry out the client of forced roaming as needs from the client of described the first radio reception device association, and obtains the MAC Address that described needs carry out the client of forced roaming.
5. a method of forcing the client roaming is characterized in that, comprising:
The first radio reception device sends the media access control MAC address to access controller, and described MAC Address is the MAC Address that the needs of described the first radio reception device selection carry out the client of forced roaming;
Described the first radio reception device receives the indication that described access controller sends, reduce the message signals intensity that is sent to the client that to roam according to described indication, and the message from the described client that can roam is not replied acknowledgement frame, roam to force the described client that can roam;
Described indication is the adjacent radio reception device that described access controller sends to described MAC Address described the first radio reception device, indicate described adjacent radio reception device to detect described adjacent radio reception device to the received signal strength of client with described MAC Address, receive the testing result that described adjacent radio reception device reports, according to described testing result, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, after the client of then determining to have described MAC Address can be roamed, send to described the first radio reception device.
6. method according to claim 5 is characterized in that, the client that described the first radio reception device is selected to carry out forced roaming comprises:
When the number of the client of described the first radio reception device association during more than or equal to the 5th threshold value, described the first radio reception device selects at least one client to carry out the client of forced roaming as needs from the client of described the first radio reception device association; Perhaps,
When described the first radio reception device was less than or equal to the 6th threshold value to the received signal strength of at least one client of described the first radio reception device association, described the first radio reception device selected described at least one client to carry out the client of forced roaming as needs; Perhaps,
When the number of the client of described the first radio reception device association more than or equal to the 7th threshold value, and when described the first radio reception device was less than or equal to the 8th threshold value to the received signal strength of at least one client of described the first radio reception device association, described the first radio reception device selected described at least one client to carry out the client of forced roaming as needs.
7. a device of forcing the client roaming is characterized in that, be arranged in the access controller, described device comprises: obtain module, sending module, indicating module, receiver module and determination module;
Described acquisition module is used for the media access control MAC address that acquisition need to be carried out the client of forced roaming, and the client that described needs carry out forced roaming is the client of the first radio reception device association;
Described sending module is used for the MAC Address that described acquisition module obtains is sent to the adjacent radio reception device of described the first radio reception device;
Described indicating module is used to indicate described adjacent radio reception device and detects described adjacent radio reception device to the received signal strength of client with described MAC Address; And after the client that described determination module determines to have described MAC Address can be roamed, indicate described the first radio reception device to reduce the message signals intensity that is sent to the definite client that can roam of described determination module, and indicate described the first radio reception device to not replying acknowledgement frame from the message of the definite client that can roam of described determination module, roam to force the described client that can roam;
Described receiver module is used for receiving the testing result that described adjacent radio reception device reports;
Described determination module, be used for the testing result according to described receiver module reception, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the second radio reception device of Second Threshold, determines that then the client with described MAC Address can roam.
8. device according to claim 7 is characterized in that,
Described determination module also is used for the purpose radio reception device of determining that described the second radio reception device is the described client that can roam;
Described indicating module, also be used to indicate in the radio reception device that described access controller connects other radio reception devices except described purpose radio reception device after the probe requests thereby that receives the described client that can roam, do not respond described probe requests thereby, in order to only have described purpose radio reception device after the probe requests thereby that receives the described client that can roam, respond described probe requests thereby.
9. device according to claim 8 is characterized in that,
Described determination module, concrete being used for determined the purpose radio reception device that described the second radio reception device is the described client that can roam when described the second radio reception device only has one; Perhaps, when described the second radio reception device comprises at least two, determine that the second radio reception device to the received signal strength maximum of the described client that can roam is the purpose radio reception device of the described client that can roam.
10. device according to claim 7 is characterized in that,
Described acquisition module, the concrete MAC Address that is used for receiving the transmission of the first radio reception device, described MAC Address are the MAC Address that the needs of described the first radio reception device selection carry out the client of forced roaming; Perhaps, determine that when described determination module the number of client of the first radio reception device association is more than or equal to the 3rd threshold value, and when the number that has related client in the adjacent radio reception device of described the first radio reception device is less than or equal to the radio reception device of the 4th threshold value, from the client of described the first radio reception device association, select at least one client to carry out the client of forced roaming as needs, and obtain the MAC Address that described needs carry out the client of forced roaming.
11. a device of forcing the client roaming is characterized in that, be arranged in the radio reception device, described device comprises:
The address sending module is used for sending the media access control MAC address to access controller, and described MAC Address is the MAC Address that the needs of described radio reception device selection carry out the client of forced roaming;
The indication receiver module is used for receiving the indication that described access controller sends;
The forced roaming module, the indication that is used for receiving according to described indication receiver module reduces the message signals intensity that is sent to the client that can roam, and the message from the described client that can roam is not replied acknowledgement frame, roam to force the described client that can roam;
The indication that described indication receiver module receives is the adjacent radio reception device that described access controller sends to described MAC Address described radio reception device, indicate described adjacent radio reception device to detect described adjacent radio reception device to the received signal strength of client with described MAC Address, receive the testing result that described adjacent radio reception device reports, according to described testing result, if exist received signal strength to client with described MAC Address more than or equal to first threshold in the described adjacent radio reception device, and the number of related client is less than or equal to the radio reception device of Second Threshold, and the client of then determining to have described MAC Address sends after can roaming.
12. device according to claim 11 is characterized in that, also comprises:
Select module, when being used for number when the client of described radio reception device association more than or equal to the 5th threshold value, at least one client of selection is carried out the client of forced roaming as needs from the client of described radio reception device association; Perhaps, when described radio reception device is less than or equal to the 6th threshold value to the received signal strength of at least one client of described radio reception device association, select described at least one client to carry out the client of forced roaming as needs; Perhaps, when the number of the client of described radio reception device association more than or equal to the 7th threshold value, and when described radio reception device is less than or equal to the 8th threshold value to the received signal strength of at least one client of described radio reception device association, select described at least one client to carry out the client of forced roaming as needs.
13. an access controller is characterized in that, comprises the device such as the described pressure client roaming of claim 7-10 any one.
14. a radio reception device is characterized in that, comprises the device such as the described pressure client roaming of claim 11-12 any one.
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| CN107820303A (en) * | 2017-12-13 | 2018-03-20 | 广东欧珀移动通信有限公司 | Mobile terminal wireless local area network scan method and apparatus, computer equipment |
| CN111491352A (en) * | 2020-04-11 | 2020-08-04 | 杭州迪普科技股份有限公司 | Wireless roaming method and system for mobile terminal |
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| CN104468058A (en) * | 2014-11-14 | 2015-03-25 | 北京囡宝科技有限公司 | Method and device for monitoring client side signal feature |
| US11363515B2 (en) | 2014-12-17 | 2022-06-14 | Interdigital Ce Patent Holdings | WLAN user quality of experience control in a multi-access point environment |
| CN107113641B (en) * | 2014-12-17 | 2021-04-13 | 交互数字Ce专利控股公司 | Quality of experience control for WLAN users in a multi-access point environment |
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| US11902848B2 (en) | 2014-12-17 | 2024-02-13 | Interdigital Ce Patent Holdings | WLAN user quality of experience control in a multi-access point environment |
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| CN111491352A (en) * | 2020-04-11 | 2020-08-04 | 杭州迪普科技股份有限公司 | Wireless roaming method and system for mobile terminal |
| CN113747541A (en) * | 2020-05-28 | 2021-12-03 | 华为技术有限公司 | Terminal roaming guiding method, device, equipment and computer readable storage medium |
| CN113747541B (en) * | 2020-05-28 | 2023-03-24 | 华为技术有限公司 | Terminal roaming guiding method, device, equipment and computer readable storage medium |
| CN114205756A (en) * | 2021-11-04 | 2022-03-18 | 锐捷网络股份有限公司 | Roaming method and device of wireless terminal |
| WO2023078341A1 (en) * | 2021-11-04 | 2023-05-11 | 锐捷网络股份有限公司 | Roaming method and apparatus for wireless terminal |
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