CN104822168B - The bootstrap technique and device of wireless terminal frequency range switching - Google Patents
The bootstrap technique and device of wireless terminal frequency range switching Download PDFInfo
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- CN104822168B CN104822168B CN201510193777.9A CN201510193777A CN104822168B CN 104822168 B CN104822168 B CN 104822168B CN 201510193777 A CN201510193777 A CN 201510193777A CN 104822168 B CN104822168 B CN 104822168B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Abstract
The present invention provides the bootstrap techniques and device of a kind of switching of wireless terminal frequency range, wherein the described method includes: obtaining the frequency range that wireless access point is supported, frequency range includes the first frequency range and the second frequency range, and the first frequency range physical address corresponding with the second frequency range is identical；Obtain the associated wireless terminal of the first frequency range in wireless access point；Judge whether wireless terminal is double-frequency wireless terminal, if so, sending synchronization message order to wireless access point；Synchronous success message will be returned to according to synchronization message order by receiving wireless access point after the corresponding node information synchronization to the second frequency range of the associated wireless terminal of the first frequency range；Frequency range, which is sent, according to synchronous success message handovers request to wireless access point；Receive the frequency range guidance success message returned after wireless access point guides the associated wireless terminal of the first frequency range to the second frequency range according to frequency range switching request.The above method and device accelerate the speed of double-frequency wireless accessing terminal to network, and alleviate the load of 2.4G frequency range.
Description
Technical field
The present invention relates to wireless communication technology field, bootstrap technique more particularly to a kind of switching of wireless terminal frequency range and
Device.
Background technique
With popularizing for WLAN (Wireless Local Area Network, WLAN), wireless user is also more next
More, wlan system generally comprises AC (Wireless access controller, wireless controller), AP (Access
Point, wireless access point) and STA (station, wireless terminal).The wireless terminal that user uses is divided into single-frequency wireless terminal
(only supporting 2.4G frequency range) and double-frequency wireless terminal (supporting 2.4G and 5.8G), and wireless access point AP is also classified into single-frequency access point
(only supporting 2.4G frequency range) and double frequency access point (supporting 2.4G and 5.8G).There are such a fields for usual radio local network environment
Scape: since wireless terminal is got used to accessing using 2.4G HF mode, double frequency (2.4G and 5.8G) wireless terminal may be connected
Onto the 2.4G frequency range for the wireless access point for supporting double frequency, so that 5.8G frequency range is generally lower than 2.4G band channels interest rate, in addition
2.4G single-frequency terminal is more compared with dual band terminal at present, causes the duty factor of 2.4G frequency range heavier and the resource of 5.8G frequency range is unrestrained
Take.
In order to reduce the waste of 5.8G frequency range in AP, traditional mode is that the 2.4G for controlling double-frequency wireless terminal by AC connects
Enter network action and realizes priority access 5.8G.That is AP receives a double-frequency wireless terminal in the network connecting request of 2.4G frequency range
When, which will refuse the access of the double-frequency wireless terminal, and the double-frequency wireless terminal that network is added in request have to be found other
Frequency range is attached.To realize priority access 5.8G frequency range in certain degree.Since what double-frequency wireless terminal was sent connects
The request for entering 2.4G frequency range may continuously be refused, until requesting 5.8G frequency range.It is easy to cause double-frequency wireless terminal for a long time
Network is not connected, causes the speed of double-frequency wireless accessing terminal to network slow.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide it is a kind of raising wireless terminal connection network speed it is wireless
The bootstrap technique and device of terminal frequency range switching.
A kind of bootstrap technique of wireless terminal frequency range switching, which comprises
The frequency range that wireless access point is supported is obtained, the frequency range includes the first frequency range and the second frequency range, first frequency
Section physical address corresponding with the second frequency range is identical；
Obtain the associated wireless terminal of the first frequency range in wireless access point；
Judge whether the wireless terminal is double-frequency wireless terminal, if so, sending synchronization message life to wireless access point
It enables；
The wireless access point is received according to synchronization message order by the corresponding node of the associated wireless terminal of the first frequency range
Synchronous success message is returned after synchronizing information to the second frequency range；
Frequency range, which is sent, according to synchronous success message handovers request to the wireless access point；
It receives the wireless access point and is guided the associated wireless terminal of the first frequency range to described according to frequency range switching request
The frequency range guidance success message returned after second frequency range.
Before the step of sending synchronization message order to the wireless access point in one of the embodiments, the side
Method further include:
Obtain the quantity of the associated wireless terminal of the second frequency range in the wireless access point；
Whether the quantity for judging the wireless terminal is more than preset threshold, is sent together if it is not, then entering to wireless access point
The step of walking information order.
It is described in one of the embodiments, that the step of whether wireless terminal is double-frequency wireless terminal judged, comprising:
Judge whether the first frequency range of wireless access point and the second frequency range all receive the probe messages that wireless terminal is sent,
If so, wireless terminal is double-frequency wireless terminal.
A kind of bootstrap technique of wireless terminal frequency range switching, which comprises
Receive the synchronization message order that wireless controller is sent；
According to the synchronization message order by the corresponding node information synchronization of the associated wireless terminal of the first frequency range to second
In frequency range, and synchronous success message is returned to wireless controller, first frequency range and the corresponding physical address phase of the second frequency range
Together；
Receive the frequency range switching request that wireless controller is sent；
The associated wireless terminal of the first frequency range is guided to the second frequency range according to the frequency range switching request.
It is described in one of the embodiments, to be drawn the associated wireless terminal of the first frequency range according to the frequency range switching request
The step of being directed at the second frequency range, comprising:
Channel is sent to the associated wireless terminal of the first frequency range and switches announcement message, and the channel switching announcement message carries
The corresponding channel number of second frequency range, the wireless terminal switch announcement message according to channel and pass through the corresponding letter of second frequency range
Taoist monastic name transmits data to the physical address；
Judge whether the second frequency range receives the data of wireless terminal transmission, if so, sending frequency range to wireless controller
Guide success message.
A kind of guide device of wireless terminal frequency range switching, described device include:
Frequency range obtains module, the frequency range supported for obtaining wireless access point, and the frequency range includes the first frequency range and the
Two frequency ranges, first frequency range physical address corresponding with the second frequency range are identical；
Terminal obtains module, for obtaining the associated wireless terminal of the first frequency range in wireless access point；
First judgment module, for judging whether the wireless terminal is double-frequency wireless terminal；
Command sending module when result for judging when the first judgment module is is, is sent to wireless access point
Synchronization message order；
First frequency range is associated with for receiving the wireless access point according to synchronization message order by first message receiving module
The corresponding terminals physical address of wireless terminal, network address and netkey be synchronized to return after the second frequency range and synchronize success
Message；
Request sending module handovers request to the wireless access point for sending frequency range according to synchronous success message；
First frequency range is associated with for receiving the wireless access point according to frequency range switching request by second message receiving module
Wireless terminal guide to second frequency range after return frequency range guidance success message.
Described device in one of the embodiments, further include:
Terminal quantity obtains module, for obtaining the number of the associated wireless terminal of the second frequency range in the wireless access point
Amount；
Second judgment module, for judging whether the quantity of the wireless terminal is more than preset threshold；
The command sending module is also used to when the result that second judgment module judges is no, to wireless access point
Send synchronization message order.The first judgment module is also used to judge the of wireless access point in one of the embodiments,
Whether one frequency range and the second frequency range all receive the probe messages of wireless terminal transmission, if so, wireless terminal is double-frequency wireless
Terminal.
A kind of guide device of wireless terminal frequency range switching, described device include:
Order receiver module, for receiving the synchronization message order of wireless controller transmission；
First message sending module, for according to the synchronization message order that the associated wireless terminal of the first frequency range is corresponding
Node information synchronization into the second frequency range, and return to synchronous success message to wireless controller, first frequency range and second
The corresponding physical address of frequency range is identical；
Request receiving module, for receiving the frequency range switching request of wireless controller transmission；
Frequency range guiding module, for being guided the associated wireless terminal of the first frequency range to according to the frequency range switching request
Two frequency ranges.
The frequency range guiding module includes: in one of the embodiments,
Channel switching module switches announcement message, the letter for sending channel to the associated wireless terminal of the first frequency range
Road switches announcement message and carries the corresponding channel number of the second frequency range, and the wireless terminal switches announcement message according to channel and passes through institute
It states the corresponding channel number of the second frequency range and transmits data to the physical address；
Second message sending module, for judging whether the second frequency range receives the data of wireless terminal transmission, if so,
Frequency range, which is sent, to wireless controller guides success message.
The bootstrap technique and device of above-mentioned wireless terminal frequency range switching, can actively close the first frequency range in wireless access point
The double-frequency wireless terminal of connection is guided to the second frequency range, due to not needing double-frequency wireless terminal by repeatedly sending connection request ability
It accesses the second frequency range and realizes connection network, when the first frequency range is 2.4G frequency range, the second frequency range is 5.8G frequency range, so that double-frequency wireless
Terminal can be connected into network quickly through 5.8G frequency range, accelerate the speed of double-frequency wireless accessing terminal to network, and alleviate 2.4G
The load of frequency range.
Detailed description of the invention
Fig. 1 is the flow diagram of the bootstrap technique of wireless terminal frequency range switching in one embodiment；
Fig. 2 is the wireless terminal frequency range in one embodiment before sending synchronization message commands steps to wireless access point
The flow diagram of the bootstrap technique of switching；
Fig. 3 is the flow diagram of the bootstrap technique of wireless terminal frequency range switching in another embodiment；
Fig. 4 is the application scenario diagram of the bootstrap technique of wireless terminal frequency range switching in one embodiment；
Fig. 5 is a kind of structural schematic diagram of the guide device of the wireless terminal frequency range switching provided in one embodiment；
Fig. 6 is the structural schematic diagram of the guide device of wireless terminal frequency range switching in another embodiment；
Fig. 7 is the structural schematic diagram of one embodiment Mid Frequency guiding module.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, in one embodiment, the bootstrap technique this method for providing a kind of wireless terminal frequency range switching is answered
Used in wireless controller (AC), this method comprises the following steps:
Step 101, the frequency range that wireless access point is supported is obtained.
Step 102, the associated wireless terminal of the first frequency range in wireless access point is obtained.
Wireless access point refers to the wireless access point (i.e. double-frequency wireless access point, AP) for supporting two-band.Frequency range includes the
One frequency range and the second frequency range, in the present embodiment, the first frequency range physical address corresponding with the second frequency range is identical.With the second frequency range phase
Refer to the wireless access way that wireless terminal generally uses than the first frequency range.Specifically, the first frequency range is 2.4G frequency range, the second frequency
Section is 5.8G frequency range.Wireless controller is in advance by the first frequency range in double-frequency wireless access point and the corresponding RF physical of the second frequency range
(Mac) address setting is identical, so that BSS (Basic Service Set, basic clothes that two frequency ranges use consolidated network
Business collection) in addition to channel number is different, BSSID and MAC Address are all the same.AP under AC control uses general microcellulor framework, i.e.,
Each AP can independently carry out the transmission-receiving function deployment of message on a different channel.
Step 103, judge whether wireless terminal is double-frequency wireless terminal.If so, 104 are entered step, if it is not, then tying
Beam.
Since wireless terminal preferentially uses the wireless access way of 2.4G frequency range under normal conditions, lead to the 5.8G frequency in AP
Duan Ziyuan is wasted, and AP had both supported 2.4G frequency range or supported 5.8G frequency range, if by the associated double-frequency wireless of 2.4G frequency range in AP
Terminal is guided into 5.8G frequency range, and the utilization rate for both having improved 5.8G frequency range also mitigates the load of 2.4G frequency range.
AC is obtained in the AP under control after the associated wireless terminal of the first frequency range, further, judge be in wireless terminal
It is no that there are double-frequency wireless terminals.Specifically, judging whether the first frequency range of wireless access point and the second frequency range all receive wirelessly
The probe messages that terminal is sent, if so, wireless terminal is double-frequency wireless terminal.
Double-frequency wireless terminal be added WLAN after, can the first frequency range each channel and the second frequency range it is each
Probe messages are sent on channel to detect whether there are wireless network, if double-frequency wireless access point receives in the first frequency range
Probe messages then indicate that the wireless terminal supports the first frequency range, and similarly, double-frequency wireless access point receives nothing in the second frequency range
The probe messages that line terminal is sent, then it represents that the wireless terminal supports the second frequency range.When two frequency ranges of AP can receive together
The probe messages that one wireless terminal is sent, then it represents that the wireless terminal is double-frequency wireless terminal.
In one embodiment, the corresponding physics of wireless terminal that the AP under AC control can report oneself each frequency range to listen to
Whether address, AC will record the corresponding physical address of the associated wireless terminal of each frequency range of AP, be further decision to wireless terminal
It carries out frequency range guidance and support is provided.
Step 104, synchronization message order is sent to wireless access point.
Step 105, it is according to synchronization message order that the associated wireless terminal of the first frequency range is corresponding to receive wireless access point
Synchronous success message is returned after node information synchronization to the second frequency range.
In the present embodiment, determine to wireless terminal carry out frequency range guidance after, in order to not influence in frequency range handoff procedure to nothing
Wireless terminal, is synchronized in the second frequency range by the influence of line online in the link information in the first frequency range in advance.Nodal information is
Essential information needed for referring to AP and wireless terminal progress wireless data transmission.
Specifically, nodal information includes: the corresponding terminals physical address of double-frequency wireless terminal, network address (IP) and net
Network key etc..It will record the corresponding nodal information of wireless terminal in AP on the trawl performance of first frequency range；When needs will wirelessly eventually
When end is switched to the second frequency range by the first frequency range, the nodal information recorded on the first frequency range trawl performance is copied into the second frequency range
Trawl performance in, after nodal information replicates successfully, synchronous success message is returned to AC, to notify AC that can send frequency to AP
Section switching request.Further, AP deletes the nodal information in the first frequency range.And AC online user's data table is revised as wirelessly
Terminal is associated with the second frequency range.
Step 106, frequency range is sent according to synchronous success message and handovers request to wireless access point.
Step 107, receive wireless access point according to frequency range switching request by the associated wireless terminal of the first frequency range guide to
The frequency range guidance success message returned after second frequency range.
In the present embodiment, AC and AP have done the preparation that frequency range switches, and further, notify AP by wireless terminal
It guides from the first frequency range to the second frequency range.Wireless access point draws the associated wireless terminal of the first frequency range according to frequency range switching request
It is directed at the second frequency range.
The bootstrap technique of above-mentioned wireless terminal frequency range switching, can be actively associated double by the first frequency range in wireless access point
Frequency wireless terminal is guided to the second frequency range, could access the by repeatedly sending connection request due to not needing double-frequency wireless terminal
Two frequency ranges realize connection network, when the first frequency range is 2.4G frequency range, the second frequency range is 5.8G frequency range, enable double-frequency wireless terminal
It is connected into network quickly through 5.8G frequency range, accelerates the speed of double-frequency wireless accessing terminal to network, and alleviates 2.4G frequency range
Load.
As shown in Fig. 2, in one embodiment, in step 104, before sending synchronization message order to wireless access point,
This method further include:
Step 201, the quantity of the associated wireless terminal of the second frequency range in wireless access point is obtained.
Step 202, whether the quantity for judging wireless terminal is more than preset threshold.If it is not, then enter step 104, to wireless
Access point sends synchronization message order.If so, terminating.
In the present embodiment, in order to enable the load balancing in AP between the first frequency range and the second frequency range, prevents some frequency
Section overload leads to the unstable of the network connection between wireless terminal and AP, before carrying out frequency range switching and booting, knows
The loading condition that the second frequency range extremely will be guided just carries out frequency range switching in the case that the load of the second frequency range allows and draws
It leads.For example, if the associated wireless terminal quantity of the second frequency range is 100 to be greater than preset threshold, and the first frequency range associated wireless end
Holding quantity is 2, then does not guide the associated wireless terminal of the first frequency range into the second frequency range.
As shown in figure 3, in one embodiment, a kind of bootstrap technique of the wireless terminal frequency range switching provided, this method
It applies in wireless access point, this method comprises the following steps:
Step 301, the synchronization message order that wireless controller is sent is received.
Step 302, according to synchronization message order by the corresponding node information synchronization of the associated wireless terminal of the first frequency range extremely
In second frequency range, and synchronous success message is returned to wireless controller.
Step 303, the frequency range switching request that wireless controller is sent is received.
Step 304, the associated wireless terminal of the first frequency range is guided to the second frequency range according to frequency range switching request.
In the present embodiment, the first frequency range physical address corresponding with the second frequency range is identical, and AP receives wireless controller and sends
Synchronization message order, specify the wireless terminal for needing to carry out frequency range switching in the synchronization message order, further, AP is by nothing
The corresponding nodal information of line terminal copies in the corresponding trawl performance of the second frequency range, to realize node information synchronization to second
In frequency range.And synchronous success message is sent to wireless controller, indicate that AP has carried out the preparation of frequency range switching.Into one
Step receives the frequency range switching request (i.e. request AP is guided wireless terminal into the second frequency range by the first frequency range) that AC is sent, leads to
It crosses AP and completes frequency range switch operating.
In one embodiment, step 304, according to frequency range switching request by the associated wireless terminal of the first frequency range guide to
Second frequency range includes: to send channel switching announcement message to the associated wireless terminal of the first frequency range, and channel switching announcement message is taken
The corresponding channel number of the second frequency range of band；Wireless terminal switches announcement message according to channel and transmits number to physical address by channel number
According to.Judge whether the second frequency range receives the data of wireless terminal transmission, if so, to wireless controller send frequency range guidance at
Function message.
In the present embodiment, the data mode for the channel switching announcement message that AP is sent to wireless terminal is beacon frame, should
The corresponding channel number of the second frequency range is contained in beacon frame.Wireless terminal receive channel switching announcement message after will stop to
The first band transmissions data of AP, and be spaced after one section of preset time and data biography is carried out by the corresponding channel number of the second frequency range
It is defeated, indicate that frequency range guides successfully when the data of the second UHF band reception to wireless terminal transmission, due to the first frequency range and the second frequency
The corresponding physical address of section be it is identical, in other words, frequency range guidance is by the way that wireless terminal to be passed through to the first frequency range pair originally
The channel transmission data answered, which is changed to through the corresponding channel transmission data of the second frequency range, to be realized.And the physics of data transmission
Address simultaneously has not been changed.
As shown in figure 4, being the application scenario diagram of method provided by the invention, wherein include: AC10 in wireless network environment
AP20, AP21 and AP22 are managed respectively.Establishing the wireless terminal being wirelessly connected with AP20 includes: 30,31,32 and 33,
In, it 30,31 and 32,31 and 32 is single-frequency wireless terminal that 2.4G frequency range, which is associated with wireless terminal to include, 30 is double-frequency wireless terminal.
5.8G frequency range is associated with single-frequency wireless terminal 33.The method AC10 provided through the invention sends synchronization message order to AP20,
The corresponding physical address of double-frequency wireless terminal 30, network address and netkey are synchronized in 5.8G frequency range by AP20；And it returns
Return synchronous success message and send frequency range and handover request to AP20 to AC10, AC10, by AP20 guide double-frequency wireless terminal 30 from
2.4G frequency range switches to 5.8G frequency range.So that the associated wireless terminal of the second frequency range includes 33 and 30, and the first frequency range of AP50 is closed
The wireless terminal of connection becomes 31 and 32.
As shown in figure 5, in one embodiment, a kind of guide device of the wireless terminal frequency range switching provided, the device
Including following module:
Frequency range obtains module 50, the frequency range supported for obtaining wireless access point, and frequency range includes the first frequency range and second
Frequency range, the first frequency range physical address corresponding with the second frequency range are identical.
Terminal obtains module 51, for obtaining the associated wireless terminal of the first frequency range in wireless access point.
First judgment module 52, for judging whether wireless terminal is double-frequency wireless terminal.
Command sending module 53 when result for judging when first judgment module is is, is sent same to wireless access point
Walk information order.
First message receiving module 54, it is according to synchronization message order that the first frequency range is associated for receiving wireless access point
Synchronous success message is returned after wireless terminal corresponding node information synchronization to the second frequency range.
Request sending module 55 handovers request to wireless access point for sending frequency range according to synchronous success message, wirelessly
Access point guides the associated wireless terminal of the first frequency range to the second frequency range according to frequency range switching request.
Second message receiving module 56 closes the first frequency range according to frequency range switching request for receiving the wireless access point
The frequency range that the wireless terminal of connection returns after guiding to second frequency range guides success message.
In one embodiment, the guide device of the wireless terminal frequency range switching provided further include:
Terminal quantity obtains module, for obtaining the quantity of the associated wireless terminal of the second frequency range in wireless access point.
Second judgment module, for judging whether the quantity of wireless terminal is more than preset threshold.
The command sending module 53 is also used to when the result that the second judgment module judges is no, is sent out to wireless access point
Send synchronization message order.
In one embodiment, first judgment module 54 is also used to judge the first frequency range and the second frequency range of wireless access point
Whether the probe messages of wireless terminal transmission are all received, if so, wireless terminal is double-frequency wireless terminal.
As shown in fig. 6, in one embodiment, a kind of guide device of the wireless terminal frequency range switching provided, the device
Including following module:
Order receiver module 60, for receiving the synchronization message order of wireless controller transmission.
First message sending module 62, for according to synchronization message order that the associated wireless terminal of the first frequency range is corresponding
Node information synchronization returns to synchronous success message to wireless controller, first frequency range and the second frequency into the second frequency range
The corresponding physical address of section is identical.
Request receiving module 64, for receiving the frequency range switching request of wireless controller transmission.
Frequency range guiding module 66, for being guided the associated wireless terminal of the first frequency range to second according to frequency range switching request
Frequency range.
As shown in fig. 7, in one embodiment, frequency range guiding module 66 includes:
Channel switching module 660 switches announcement message, channel for sending channel to the associated wireless terminal of the first frequency range
Switch announcement message and carry the corresponding channel number of the second frequency range, wireless terminal switches announcement message according to channel and passes through the second frequency range
Corresponding channel number transmits data to physical address.
Second message sending module 662, for judging whether the second frequency range receives the data of wireless terminal transmission, if
It is then to send frequency range to wireless controller and guide success message.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of bootstrap technique of wireless terminal frequency range switching, which comprises
Obtain the frequency range supported of wireless access point, the frequency range includes the first frequency range and the second frequency range, first frequency range and
The corresponding physical address of second frequency range is identical；
Obtain the associated wireless terminal of the first frequency range in wireless access point；
Judge whether the first frequency range of wireless access point and the second frequency range all receive the probe messages that wireless terminal is sent, if
It is that then the wireless terminal is double-frequency wireless terminal, obtains the associated wireless terminal of the second frequency range in the wireless access point
Quantity judges whether the quantity of the wireless terminal is more than preset threshold, if it is not, then sending synchronization message life to wireless access point
It enables；
The wireless access point is received according to synchronization message order by the corresponding nodal information of the associated wireless terminal of the first frequency range
Synchronous success message is returned after being synchronized to the second frequency range；
Frequency range, which is sent, according to synchronous success message handovers request to the wireless access point；
It receives the wireless access point and is guided the associated wireless terminal of the first frequency range to described second according to frequency range switching request
The frequency range guidance success message returned after frequency range.
2. a kind of bootstrap technique of wireless terminal frequency range switching, which comprises
Receive the synchronization message order that wireless controller is sent；
According to the synchronization message order by the corresponding node information synchronization of the associated wireless terminal of the first frequency range to the second frequency range
In, and return to synchronous success message to wireless controller, first frequency range physical address corresponding with the second frequency range is identical；
Receive the frequency range switching request that wireless controller is sent；
The associated wireless terminal of the first frequency range is guided to the second frequency range according to the frequency range switching request.
3. according to the method described in claim 2, it is characterized in that, described close the first frequency range according to the frequency range switching request
The step of wireless terminal of connection is guided to the second frequency range, comprising:
Channel is sent to the associated wireless terminal of the first frequency range and switches announcement message, and the channel switching announcement message carries second
The corresponding channel number of frequency range, the wireless terminal switch announcement message according to channel and pass through the corresponding channel number of second frequency range
Data are transmitted to the physical address；
Judge whether the second frequency range receives the data of wireless terminal transmission, if so, sending frequency range guidance to wireless controller
Success message.
4. a kind of guide device of wireless terminal frequency range switching, which is characterized in that described device includes:
Frequency range obtains module, the frequency range supported for obtaining wireless access point, and the frequency range includes the first frequency range and the second frequency
Section, first frequency range physical address corresponding with the second frequency range are identical；
Terminal obtains module, for obtaining the associated wireless terminal of the first frequency range in wireless access point；
Whether first judgment module, the first frequency range and the second frequency range for judging wireless access point all receive wireless terminal hair
The probe messages sent；
Command sending module obtains in the wireless access point when result for judging when the first judgment module is is
The quantity of the associated wireless terminal of second frequency range judges whether the quantity of the wireless terminal is more than preset threshold, if it is not, then to
Wireless access point sends synchronization message order；
First message receiving module, for receiving the wireless access point according to synchronization message order for the associated nothing of the first frequency range
The corresponding terminals physical address of line terminal, network address and netkey, which are synchronized to return to synchronize after the second frequency range, successfully to disappear
Breath；
Request sending module handovers request to the wireless access point for sending frequency range according to synchronous success message；
Second message receiving module, for receiving the wireless access point according to frequency range switching request for the associated nothing of the first frequency range
The frequency range that line terminal returns after guiding to second frequency range guides success message.
5. a kind of guide device of wireless terminal frequency range switching, which is characterized in that described device includes:
Order receiver module, for receiving the synchronization message order of wireless controller transmission；
First message sending module, for according to the synchronization message order by the corresponding section of the associated wireless terminal of the first frequency range
Point synchronizing information returns to synchronous success message to wireless controller, first frequency range and the second frequency range into the second frequency range
Corresponding physical address is identical；
Request receiving module, for receiving the frequency range switching request of wireless controller transmission；
Frequency range guiding module, for being guided the associated wireless terminal of the first frequency range to the second frequency according to the frequency range switching request
Section.
6. device according to claim 5, which is characterized in that the frequency range guiding module includes:
Channel switching module switches announcement message for sending channel to the associated wireless terminal of the first frequency range, and the channel is cut
It changes announcement message and carries the corresponding channel number of the second frequency range, the wireless terminal switches announcement message by described the according to channel
The corresponding channel number of two frequency ranges transmits data to the physical address；
Second message sending module, for judging whether the second frequency range receives the data of wireless terminal transmission, if so, to nothing
Lane controller sends frequency range and guides success message.
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| CN105430674B (en) * | 2015-11-03 | 2019-10-25 | 上海斐讯数据通信技术有限公司 | A kind of wireless network communication method and system |
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