CN104717706B - The smooth loaming method of WLAN and system and access point and access controller - Google Patents
The smooth loaming method of WLAN and system and access point and access controller Download PDFInfo
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- CN104717706B CN104717706B CN201310681948.3A CN201310681948A CN104717706B CN 104717706 B CN104717706 B CN 104717706B CN 201310681948 A CN201310681948 A CN 201310681948A CN 104717706 B CN104717706 B CN 104717706B
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Abstract
The invention discloses a kind of smooth loaming method of WLAN and system and access points and access controller, are related to wireless local area network roaming field.The present invention is not in the case where changing the access controller and access point architecture in current wlan network, the initiation of roaming and control are concentrated to access controller, and execution is responsible for by access point, smooth roaming is realized in the case where client device is without any movement and without any perception, simplifies the process of roaming.In addition, access controller selects optimal access point according to the quality of connection of client device and each access point to forward the data of client device, the roaming experience of user is greatly improved.
Description
Technical field
The present invention relates to WLAN (Wireless Local Area Networks, abbreviation WLAN) to roam field,
In particular to the smooth loaming method of a kind of WLAN and system and access point and access controller.
Background technique
With universal and light net city the fast development of intelligent hand-held terminal, radio roaming function of the people to terminal
Energy demand is increasingly strong.
It is roamed between multiple access points (Access Point, AP) of the client device in wlan system at present
Process is mainly initiated by client device, roam procedure judging whether to need by client device.In roam procedure, by
Client device initiates to negotiate request to newfound AP, and then completes entire roam procedure.
Whether existing WLAN roaming process starts is determined by client device, and one side roam procedure is more complicated, separately
One side client device is to guarantee that user data does not interrupt, and the feelings of normal communication cannot be often maintained in current signal strength
Under condition, current radio signal is just cut off, the process of detection surrounding wireless signal is reentered, therefore, often in client device
When initiating Roaming Registration request, the wireless experience of user is poor.
Summary of the invention
One purpose of the embodiment of the present invention is to propose a kind of new WLAN roaming scheme, to simplify roam procedure.
One purpose of the embodiment of the present invention is, during WLAN roaming, improves the radio roaming experience of user.
According to an aspect of an embodiment of the present invention, a kind of smooth loaming method of WLAN is proposed, comprising: each access point adds
The facility information of access controller is replicated when entering access controller；During client device registration, the first access point is used
The facility information of the access controller of duplication is communicated with client device, and the registration information of client device is sent
To access controller；The registration information of access controller preservation client device；The first access point is roamed in client device
With the second access point when the overlapping region of the second access point wireless coverage in the discovery procedure of client device, the second access point
It is communicated using the facility information of the access controller of duplication with client device, and inquires the client to access controller
Whether end equipment has been registered；Access controller is in response to the client device chartered query result, by the client
The registration information of equipment is sent to the second access point；Access controller selection forwards the access point of the data of the client device,
Complete roaming.
In one embodiment, during client device registration, the first access point uses the access controller replicated
Facility information communicated with client device, comprising: the first access point makees the facility information of the access controller of duplication
It is interacted for the facility information and client device of access point；Client device sets the reception access-in point information of registration information
It is set to the facility information of access controller, and issues the registration information to the first access point；Receive the first of registration information
Access point registers client device.
In one embodiment, the overlapping of the first access point and the second access point wireless coverage is roamed in client device
The second access point is to the equipment that in the discovery procedure of client device, the second access point uses the access controller of duplication when region
Information is communicated with client device, and inquires whether the client device has been registered to access controller, comprising:
The second access point is to client when client device roams to the overlapping region of the first access point and the second access point wireless coverage
In the discovery procedure of equipment, the second access point using the facility information of the access controller of duplication as the facility information of access point with
Client device interacts；Second access point inquires whether the client device has been registered to access controller.
In one embodiment, access controller selection forwards the access point of the data of the client device, completes roaming
Include: quality of connection of the access controller according to client device and access point, the optimal access point of quality of connection is selected to turn
The data of the client device are sent out, roaming is completed.
In one embodiment, MAC Address of the facility information of access controller for example including access controller.
In one embodiment, the registration information of client device includes key.
Another aspect according to an embodiment of the present invention proposes a kind of smooth roaming system of WLAN, comprising: access point and connects
Enter controller；Replicate the facility information of access controller when access point is used to be added access controller, including the first access point and
Second access point；During client device registration, the first access point is used to believe using the equipment of the access controller of duplication
Breath is communicated with client device, and the registration information of client device is sent to access controller；It is set in client
Hair of second access point to client device when the standby overlapping region for roaming to the first access point and the second access point wireless coverage
During now, the second access point is used to be communicated using the facility information of the access controller of duplication with client device, and
And inquire whether the client device has been registered to access controller；Access controller, for saving the note of client device
The registration information of the client device is sent to the in response to the client device chartered query result by volume information
Two access points, selection forward the access point of the data of the client device, complete roaming.
In one embodiment, the facility information for the access controller that the first access point is used to replicate is as access point
Facility information is interacted with client device, so that the reception access-in point information of registration information is set as connecing by client device
Enter the facility information of controller, and issue registration information to the first access point, receives the first access point pair of registration information
Client device is registered.
In one embodiment, the overlapping of the first access point and the second access point wireless coverage is roamed in client device
For the second access point in the discovery procedure of client device, the second access point is used for setting the access controller of duplication when region
Standby information is interacted as the facility information of access point with client device, and is inquired the client to access controller and set
It is standby whether to have registered.
In one embodiment, access controller is when selection forwards the access point of the data of the client device, specifically
For the quality of connection according to client device and access point, the access point that selects quality of connection optimal forwards the client to set
Standby data.
Another aspect according to an embodiment of the present invention proposes a kind of access point, comprising: information replication module is used for
Access point replicates the facility information of access controller when access controller is added；Registration module, in client device registration
In the process, it is communicated using the facility information of the access controller of duplication with client device, and by client device
Registration information is sent to access controller, so that access controller saves the registration information of client device；Enquiry module is used for
When client device roams to the overlapping region of access point wireless coverage, new access point is to the discovery procedure to client device
In, it is communicated using the facility information of the access controller of duplication with client device, and should to access controller inquiry
Whether client device has been registered, will so that access controller is in response to the client device chartered query result
The registration information of the client device is sent to new access point；Forwarding module, for the selection according to access controller, forwarding or
The data of the client device are abandoned, roaming is completed.
In one embodiment, registration module is used as access specifically for the facility information for the access controller that will be replicated
The facility information of point is interacted with client device, so that the reception access-in point information of registration information is arranged client device
For the facility information of access controller, and registration information is issued to the first access point, received after registration information to client
Equipment is registered.
In one embodiment, enquiry module, specifically for roaming to the weight of access point wireless coverage in client device
New access point is in the discovery procedure of client device when folded region, using the facility information of the access controller of duplication as accessing
The facility information of point is interacted with client device, and inquires whether the client device has been registered.
Other side according to an embodiment of the present invention proposes a kind of access controller, comprising: preserving module, for protecting
Deposit the registration information of client device；Registration notification module, for handling whether access point inquiring client terminal equipment has been registered
Request the registration information of the client device is sent to and is connect in response to the client device chartered query result
Access point；Communication selection module, the access point of the data for selecting forwarding client device, completes roaming.
In one embodiment, communication selection module, specifically for the quality of connection according to client device and access point,
The optimal access point of selection quality of connection forwards the data of client device, completes roaming.
The present invention is not in the case where changing the access controller and access point architecture in current wlan network, by roaming
It initiates and control is concentrated to access controller, and execution is responsible for by access point, appoint in client device without any movement and nothing
What realizes smooth roaming in the case where perceiving, simplify roam procedure.
Also, each access point replicates the facility information of access controller, and is set using the information and client of duplication
Standby to be communicated, therefore, all access points in client device, system are not different, when client device is more
When in a access point range, all access points in range can all receive the data of client device, thus access point can obtain
Know that its signal quality with client device, access controller judge to connect according to the signal quality of client device and each access point
Quality is connect, optimal access point is selected according to the quality of connection of client device and each access point to forward the number of client device
According to the roaming that can greatly improve user is experienced.
Meanwhile network can be added by the access point of any one in system in client device, and is registered to network, connect
Enter the registration information that controller saves client device, hereafter client device is believed without registering again using the registration of preservation
Roaming can be completed in breath.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of the smooth loaming method one embodiment of WLAN of the present invention.
Fig. 2 is the flow diagram of the smooth loaming method further embodiment of WLAN of the present invention.
Fig. 3 is the structural schematic diagram of the smooth roaming system one embodiment of WLAN of the present invention.
Fig. 4 is the structural schematic diagram of access point one embodiment of the present invention.
Fig. 5 is the structural schematic diagram of access controller one embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Decide whether to start by client device for existing WLAN roaming process, one side roam procedure is more multiple
It is miscellaneous, on the other hand when client device initiates Roaming Registration request, the poor problem of the wireless experience of user, this hair
It is bright to propose a kind of new smooth roaming scenarios of WLAN, do not changing access controller and access point architecture in current wlan network
In the case where, the initiation of roaming and control are concentrated to access controller, and execution is responsible for by access point, client device without
Need any movement and without any perception in the case where realize smooth roaming.
Wlan system is generally by AC(Access Controller, access controller) and AP(access point) composition.AP equipment
It is the core of the wireless exchange board and wireless network for wireless network.AP equipment be mobile computer user enter it is wired
The access point of network is mainly used for inside broadband home, inside buildings and garden, and typical range covers tens meters to up to a hundred
Rice, major technique is 802.11 series at present.AC equipment is the access control equipment of WLAN, is responsible for from different AP
The data of equipment are converged and are accessed Internet, in addition also complete the configuration management of AP equipment, the certification of wireless user, pipe
The control functions such as reason and broadband-access, safety.
In the present invention, for the ease of distinguishing diverse access point involved in roam procedure, invention defines first to be connect
Access point and the second access point, therein first and second are not used to indicate size and timing, and are used to indicate that roam procedure
Involved in diverse access point.
Fig. 1 is the flow diagram of the smooth loaming method one embodiment of WLAN of the present invention.As shown in Figure 1, the present embodiment
The smooth loaming method of WLAN the following steps are included:
S101, each access point replicate the facility information of access controller when access controller is added.
Wherein, the facility information of access controller for example may include the MAC(Media Access of access controller
Control, media access control) address, can also include BSSID(basic service set identifier) etc. information, but not limited to this.
S102, during client device registration, the first access point uses the facility information of the access controller of duplication
It is communicated with client device, and the registration information of client device is sent to access controller.
Present embodiment assumes that client device is added in network by the first access point, and carried out by the first access point
Registration.Wherein, client device is referred to as STA(station, website).
Wherein, the first access point communicated using the facility information of the access controller of duplication with client device one
The illustrative implementation method of kind are as follows: the first access point is believed the facility information of the access controller of duplication as the equipment of access point
Breath is interacted with client device；The reception access-in point information of registration information is set access controller by client device
Facility information, and the registration information is issued to the first access point；The first access point for receiving registration information sets client
It is standby to be registered.
Wherein, the registration information of client device for example may include the information such as key.
S103, access controller save the registration information of client device.
S104, when client device roams to the overlapping region of the first access point and the second access point wireless coverage second
For access point in the discovery procedure of client device, the second access point uses facility information and the client of the access controller of duplication
End equipment is communicated, and inquires whether the client device has been registered to access controller.
It should be noted that the overlapping region of wireless coverage is at least there are two access point, the discovery of each access point and
Roam procedure is identical as the second access point, therefore, it will be appreciated by those skilled in the art that the present invention program is not limited to two
The case where access point wireless coverage is overlapped can easily expand to the case where more than two access point wireless coverages are overlapped,
For example, the second access point has multiple situations.
Wherein, the second access point communicated using the facility information of the access controller of duplication with client device one
The illustrative implementation method of kind are as follows: roam to the overlay region of the first access point and the second access point wireless coverage in client device
The second access point is in the discovery procedure of client device when domain, and the second access point is by the facility information of the access controller of duplication
Inform client device；Second access point is using the facility information of the access controller of duplication as the facility information of access point and visitor
Family end equipment interacts, and the second access point inquires whether the client device has been registered to access controller.
S105, access controller is in response to the client device chartered query result, by the client device
Registration information is sent to the second access point, so that the registration that client device without registering again, is saved using access controller
Roaming can be completed in information.
S106, access controller selection forward the access point of the data of the client device, complete roaming.
Each access point replicates the facility information of access controller, and is carried out using the information of duplication and client device
Communication, therefore, all access points in client device, system are not different, when client device is in multiple accesses
When in point range, all access points in range can all receive the data of client device, access point can thus know its with
The signal quality of client device, access controller is according to the signal quality of client device and each access point judgement connection matter
Amount.Therefore, in one embodiment, access controller can select to connect according to the quality of connection of client device and each access point
The access point of optimal quality is connect to forward the data of client device, the roaming experience of user can be greatly improved.
For example, if the quality of connection of the second access point and client device is better than the first access point and client device
Quality of connection, then access controller can choose the data that the second access point forwards the client device.Client device broadcast
Data can be received by all access points in wireless coverage, such as the overlapping region of wireless coverage first access
Point and the second access point can all receive the data of client device, but according to the selection of access controller, the only second access
Point can forward the data of client device.
In order to keep the present invention program clearer, the application example that a WLAN is smoothly roamed is set forth below.In two AP
System in, STA has accessed AP1 first, and is gradually moved to out of AP1 coverage area the weight of the wireless coverage of AP1, AP2
Folded region, when the signal quality that AC perceives AP2 and STA is more excellent, AC starts and completes entire roam procedure.
Fig. 2 is the flow diagram of the smooth loaming method further embodiment of WLAN of the present invention.As shown in Fig. 2, this implementation
Example the smooth loaming method of WLAN the following steps are included:
When AC is added in S201, AP, AP replicates the facility information of AC.For example, when AC is added in AP1 and AP2, AP1 and
AP2 replicates the facility information of AC.
S202, STA pass through a certain AP(such as AP1 first) network is added, in STA registration process, AP1 uses duplication
AC facility information is communicated with STA, and the registration information of STA is sent to AC.
The registration information of S203, AC preservation STA.
At this point, AP1 and STA completes registration process, it can be with normal communication.
S204, when STA roams to the overlapping region of AP1 and AP2 wireless coverage, during STA has found AP2, AP2 makes
It is communicated with the AC facility information of duplication with STA.
Whether S205, AP2 have been registered using the STA information found out to AC inquiry STA in systems.
S206, if STA is registered in systems, the registration information of STA is sent to AP2 by AC, completes the note of STA
Volume.
S207, AC judge the quality of connection of STA Yu AP1 and AP2, when the quality of connection of AP2 and STA is more excellent, select AP2
The data forwarding of STA is carried out, roaming is completed.
Fig. 3 is the structural schematic diagram of the smooth roaming system one embodiment of WLAN of the present invention.
As shown in figure 3, the smooth roaming system 30 of the WLAN of the present embodiment includes: access point 31 and access controller 32, connect
Access point 31 includes the first access point 311 and the second access point 312.It should be noted that access point is not only there are two access point,
It may be there are also other access points.
Access point 31 replicates the facility information of access controller when being used to be added access controller；
During client device registration, the first access point 311 is used for the equipment using the access controller 32 replicated
Information is communicated with client device, and the registration information of client device is sent to access controller 32；
When client device roams to the overlapping region of 312 wireless coverage of the first access point 311 and the second access point
Two access points are to the equipment that in the discovery procedure of client device, the second access point 312 is used for the access controller using duplication
Information is communicated with client device, and inquires whether the client device has been registered to access controller；
Access controller 32 has been registered for saving the registration information of client device in response to the client device
Query result, the registration information of the client device is sent to the second access point, and select to forward the client device
Data access point, complete roaming.
It is used to be led to using the facility information of the access controller 32 of duplication with client device in the first access point 311
When letter, facility information and client of the facility information for the access controller that the first access point 311 is used to replicate as access point
End equipment interacts, so that the equipment that the reception access-in point information of registration information is set access controller by client device
Information, and registration information is issued to the first access point, the first access point for receiving registration information carries out client device
Registration.
The second access when client device roams to the overlapping region of the first access point and the second access point wireless coverage
Point is in the discovery procedure of client device, the facility information conduct for the access controller that the second access point 312 is used to replicate
The facility information of access point is interacted with client device, and whether to inquire the client device to access controller
Registration.
When access controller 32 selects to forward the access point of the data of the client device, it is specifically used for according to client
The quality of connection of equipment and access point selects the optimal access point of quality of connection to forward the data of the client device.
Wherein, before information included by the facility information of access controller and the registration information of client device can refer to
Embodiment is stated, which is not described herein again.
Fig. 4 is the structural schematic diagram of access point one embodiment of the present invention.
As shown in figure 4, the access point 31 of the present embodiment includes:
Information replication module 41, for replicating the facility information of access controller when access controller is added in access point；
Registration module 42, for using the facility information of the access controller of duplication during client device registration
It is communicated with client device, and the registration information of client device is sent to access controller, to access control
The registration information of device preservation client device；
Enquiry module 43, new access point pair when for roaming to the overlapping region of access point wireless coverage in client device
In the discovery procedure of client device, communicated using the facility information of the access controller of duplication with client device, and
And inquire whether the client device has been registered to access controller, so as to access controller in response to the client device
The registration information of the client device is sent to new access point by chartered query result；
Forwarding module 44 forwards or abandons the data of the client device for the selection according to access controller, completes
Roaming.
In one embodiment, registration module 42, specifically for using the facility information of the access controller of duplication as connecing
The facility information of access point is interacted with client device, so that client device sets the reception access-in point information of registration information
It is set to the facility information of access controller, and issues registration information to the first access point, receive after registration information to client
End equipment is registered.
In one embodiment, enquiry module 43, specifically for roaming to access point wireless coverage in client device
New access point is in the discovery procedure of client device when overlapping region, using the facility information of the access controller of duplication as connecing
The facility information of access point is interacted with client device, and inquires whether the client device has been registered.
Wherein, before information included by the facility information of access controller and the registration information of client device can refer to
Embodiment is stated, which is not described herein again.
Compared with the existing technology, access point apparatus increases information replication module, for replicating the facility information of AC, and makes
It is communicated with the AC facility information of duplication with client device.To all accesses in client device, system
Point is not different, and when client device is in multiple access point ranges, all access points in range can all receive client
Thus the data of equipment, access point can know its signal quality with client device.
Fig. 5 is the structural schematic diagram of access controller one embodiment of the present invention.
As shown in figure 5, the access controller 32 of the present embodiment includes:
Preserving module 51, for saving the registration information of client device；
Registration notification module 52, for handling the whether chartered request of access point inquiring client terminal equipment, in response to
The client device chartered query result, is sent to access point for the registration information of the client device；
Communication selection module 53, the access point of the data for selecting forwarding client device, completes roaming.
In one embodiment, communication selection module 53, specifically for the connection matter according to client device and access point
Amount selects the optimal access point of quality of connection to forward the data of client device, completes roaming.
Wherein, information included by the registration information of client device can refer to previous embodiment, and which is not described herein again.
Compared with the existing technology, access controller increases registration notification module and communication selection module, registration notification mould
The registration information of client device can be sent to the access point of inquiry by block, and communication selection module can choose forwarding client
The access point of the data of equipment completes roaming, so that the initiation of roaming and control are concentrated to access controller.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (17)
1. a kind of smooth loaming method of WLAN, comprising:
Each access point replicates the facility information of access controller when access controller is added；
During client device registration, the first access point is set using the facility information of the access controller of duplication with client
It is standby to be communicated, and the registration information of client device is sent to access controller；
The registration information of access controller preservation client device；
The second access point pair when client device roams to the overlapping region of the first access point and the second access point wireless coverage
In the discovery procedure of client device, the second access point using duplication access controller facility information and client device into
Row communication, and inquire whether the client device has been registered to access controller；
Access controller sends out the registration information of the client device in response to the client device chartered query result
Give the second access point；
Access controller selection forwards the access point of the data of the client device, completes roaming.
2. the method according to claim 1, wherein the first access point makes during client device registration
It is communicated with the facility information of the access controller of duplication with client device, comprising:
First access point using the facility information of the access controller of duplication as the facility information of access point and client device into
Row interaction；
Client device sets the reception access-in point information of registration information to the facility information of access controller, and to first
Access point issues the registration information；
The first access point for receiving registration information registers client device.
3. being connect the method according to claim 1, wherein roaming to the first access point and second in client device
For the second access point in the discovery procedure of client device, the second access point uses duplication when the overlapping region of access point wireless coverage
The facility information of access controller communicated with client device, and inquire the client device to access controller and be
It is no to have registered, comprising:
The second access point pair when client device roams to the overlapping region of the first access point and the second access point wireless coverage
In the discovery procedure of client device, the second access point is using the facility information of the access controller of duplication as the equipment of access point
Information is interacted with client device；
Second access point inquires whether the client device has been registered to access controller.
4. method according to claim 1-3, which is characterized in that access controller selection forwards the client to set
The access point of standby data, completing roaming includes:
According to the quality of connection of client device and access point, the access point for selecting quality of connection optimal forwards access controller
The data of the client device complete roaming.
5. method according to claim 1-3, which is characterized in that the facility information of access controller includes access
The MAC Address of controller.
6. method according to claim 1-3, which is characterized in that the registration information of client device includes close
Key.
7. a kind of smooth roaming system of WLAN, comprising: access point and access controller；
Access point replicates the facility information of access controller when being used to be added access controller, including the first access point and second connects
Access point；
During client device registration, the first access point is used for facility information and the client of the access controller using duplication
End equipment is communicated, and the registration information of client device is sent to access controller；
The second access point pair when client device roams to the overlapping region of the first access point and the second access point wireless coverage
In the discovery procedure of client device, the second access point is used to set using the facility information of the access controller of duplication with client
It is standby to be communicated, and inquire whether the client device has been registered to access controller；
Access controller, for saving the registration information of client device, in response to the client device chartered inquiry
As a result, the registration information of the client device is sent to the second access point, selection forwards connecing for the data of the client device
Access point completes roaming.
8. system according to claim 7, which is characterized in that
First access point using the facility information of the access controller of duplication as the facility information of access point with client for setting
It is standby to interact, so that client device believes the equipment that the reception access-in point information of registration information is set as access controller
Breath, and registration information is issued to the first access point, the first access point for receiving registration information infuses client device
Volume.
9. system according to claim 7, which is characterized in that
The second access point pair when client device roams to the overlapping region of the first access point and the second access point wireless coverage
In the discovery procedure of client device, the facility information for the access controller that the second access point is used to replicate is as access point
Facility information is interacted with client device, and inquires whether the client device has been registered to access controller.
10. according to the described in any item systems of claim 7-9, which is characterized in that access controller forwards the client in selection
When the access point of the data of end equipment, specifically for the quality of connection according to client device and access point, quality of connection is selected
Optimal access point forwards the data of the client device.
11. according to the described in any item systems of claim 7-9, which is characterized in that the facility information of access controller includes connecing
Enter the MAC Address of controller.
12. according to the described in any item systems of claim 7-9, which is characterized in that the registration information of client device includes close
Key.
13. a kind of access point, comprising:
Information replication module, for replicating the facility information of access controller when access controller is added in access point；
Registration module, for the facility information and client during client device registration, using the access controller of duplication
End equipment is communicated, and the registration information of client device is sent to access controller, so as to access controller preservation
The registration information of client device；
Enquiry module, new access point is to client when for roaming to the overlapping region of access point wireless coverage in client device
It in the discovery procedure of equipment, is communicated using the facility information of the access controller of duplication with client device, and to connecing
Enter controller and inquire whether the client device has been registered, so that access controller has been registered in response to the client device
Query result, the registration information of the client device is sent to new access point；
Forwarding module forwards or abandons the data of the client device for the selection according to access controller, completes roaming.
14. access point according to claim 13, which is characterized in that
Registration module, specifically for facility information and client of the facility information as access point for the access controller that will be replicated
Equipment interacts, so that client device believes the equipment that the reception access-in point information of registration information is set as access controller
Breath, and registration information is issued to the first access point, client device is registered after receiving registration information.
15. access point according to claim 13, which is characterized in that
Enquiry module, new access point is to visitor when overlapping region specifically for roaming to access point wireless coverage in client device
In the discovery procedure of family end equipment, using the facility information of the access controller of duplication as the facility information of access point and client
Equipment interacts, and inquires whether the client device has been registered.
16. the described in any item access points of 3-15 according to claim 1, which is characterized in that the facility information packet of access controller
Include the MAC Address of access controller.
17. the described in any item access points of 3-15 according to claim 1, which is characterized in that the registration information packet of client device
Include key.
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| CN105246134A (en) * | 2015-11-23 | 2016-01-13 | 深圳市乐牛网络科技有限公司 | WLAN networking and management method thereof |
| CN105516960B (en) * | 2015-12-09 | 2020-01-07 | 上海斐讯数据通信技术有限公司 | Non-perception authentication method and system, and management method and system based on method and system |
| CN112040470B (en) * | 2020-09-14 | 2023-08-08 | 普联技术有限公司 | Roaming evaluation method, network management equipment and access point equipment |
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| CN101257429B (en) * | 2008-04-14 | 2011-09-21 | 中兴通讯股份有限公司 | Method and device for realizing network roaming |
| WO2011000152A1 (en) * | 2009-06-30 | 2011-01-06 | 上海贝尔股份有限公司 | Roaming method for mobile terminal in wireless local area network, related access controller and access point device |
| CN101801051B (en) * | 2010-03-04 | 2013-03-20 | 杭州华三通信技术有限公司 | Method and equipment for selecting access points (APs) |
| CN103167471B (en) * | 2013-03-13 | 2016-08-31 | 杭州华三通信技术有限公司 | Data transmission method when a kind of client moves between different AP and equipment |
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