CN107148035A - Method, device and the wireless device of Frequency Band Selection - Google Patents
Method, device and the wireless device of Frequency Band Selection Download PDFInfo
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- CN107148035A CN107148035A CN201710382358.9A CN201710382358A CN107148035A CN 107148035 A CN107148035 A CN 107148035A CN 201710382358 A CN201710382358 A CN 201710382358A CN 107148035 A CN107148035 A CN 107148035A
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- frequency range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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Abstract
The invention belongs to communication technical field there is provided a kind of method of Frequency Band Selection, device and wireless device, applied to wireless device, the wireless device provides at least two frequency ranges, and the service set of at least two frequency range is identical, and methods described includes：During wireless terminal is associated to wireless device, wireless device judges whether at least two frequency range overloads；Wireless device determines candidate's frequency range according to the overload situations of at least two frequency range, and wireless terminal is associated to candidate's frequency range or any frequency range associated into candidate's frequency range.The problem of method that the Frequency Band Selection that prior art is provided can be effectively solved by the present invention, poor user experience.
Description
Technical field
The invention belongs to method, device and the wireless device of communication technical field, more particularly to Frequency Band Selection.
Background technology
The selection of radio roaming communication Intermediate Frequency section is all very important for commercial user and mobile communication carrier.
However, the method for the Frequency Band Selection that prior art is provided, the process being associated in wireless terminal to wireless device
In, there is problems with：
1st, whole association process is dominated by wireless terminal, therefore be there is easy broken string, response lag, can not dynamically be fitted
The problems such as answering wireless environment；
2nd, need the user of wireless terminal or the keeper of wireless device to implement additional act, therefore can not realize certainly
Animation is swum.
Therefore, the method for the Frequency Band Selection that prior art is provided, poor user experience, it is necessary to propose a kind of new technical side
Case, to solve above-mentioned technical problem.
The content of the invention
In consideration of it, the embodiment of the present invention provides a kind of method of Frequency Band Selection, device and wireless device, to solve existing skill
The problem of method for the Frequency Band Selection that art is provided, poor user experience.
The first aspect of the embodiment of the present invention is there is provided a kind of method of Frequency Band Selection, applied to wireless device, described wireless
Equipment provides at least two frequency ranges, and the service set of at least two frequency range is identical, and methods described includes：
During wireless terminal is associated to wireless device, whether wireless device judges at least two frequency range
Overload；
Wireless device determines candidate's frequency range according to the overload situations of at least two frequency range, and make wireless terminal associate to
Candidate's frequency range or association are in any frequency range into candidate's frequency range.
Further, the wireless device determines candidate's frequency range according to the overload situations of at least two frequency range, and makes
Wireless terminal, which is associated to candidate's frequency range or any frequency range associated into candidate's frequency range, to be included：
If there is band segment to overload, and there is the first frequency range in non-overloaded frequency range, then the frequency of wireless device selection first
Duan Zuowei candidate's frequency ranges, make wireless terminal associate to candidate's frequency range；
If there is band segment to overload, and the first frequency range is not present in non-overloaded frequency range, then wireless device selection is all
Non-overloaded frequency range makes wireless terminal associate in any frequency range into candidate's frequency range as candidate's frequency range；
If all frequency ranges are overloaded, wireless device selects all frequency ranges as candidate's frequency range, and makes wireless terminal
Associate in any frequency range into candidate's frequency range；
If there is no frequency range to overload, and there is the first frequency range in non-overloaded frequency range, then wireless device selects the first frequency range
As candidate's frequency range, and wireless terminal is set to associate to candidate's frequency range；
If there is no frequency range to overload, and the first frequency range is not present in non-overloaded frequency range, then wireless device selection is all non-
Frequency range is overloaded as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
Wherein, the first frequency range is bandwidth maximum, the frequency range of interference minimum in non-overloaded frequency range, and non-overloaded frequency range is not send out
The frequency range of raw overload.
Further, wireless device first time receive wireless terminal transmission probe request after, according to it is described extremely
The overload situations of few two frequency ranges determine candidate's frequency range, in overload situations of the wireless device according at least two frequency range
After determining candidate's frequency range, in addition to：
In non-candidate frequency range, wireless terminal is added in blacklist by wireless device.
Further, wireless terminal is made to associate to candidate's frequency range or associate into candidate's frequency range described
Before in any frequency range, in addition to:
Wireless device receives the authentication frame that wireless terminal is sent；
Wireless device judges whether wireless terminal supports candidate's frequency range or the support time according to the authentication frame
Any frequency range in frequency-selecting section；
If wireless terminal supports any frequency range in candidate's frequency range or support candidate's frequency range, make wireless
Any frequency range of the terminal association to candidate's frequency range or association into candidate's frequency range.
Further, judge whether wireless terminal supports candidate's frequency range according to the authentication frame in the wireless device
Or after any frequency range in support candidate's frequency range, in addition to：
If wireless terminal does not support candidate's frequency range or do not support any frequency range in candidate's frequency range, send out
Authentication frame is sent to return back to wireless terminal and remove wireless terminal from the blacklist, the state mark in the authentication frame reply
Will carries refusal information；
Receive wireless terminal transmission retry authentication frame after, wireless device is built in non-candidate frequency range with wireless terminal
Vertical association.
The second aspect of the embodiment of the present invention provides a kind of device of Frequency Band Selection, applied to wireless device, the nothing
Line equipment provides at least two frequency ranges, and the service set of at least two frequency range is identical, and described device includes：
Judge module is overloaded, during being associated in wireless terminal to wireless device, at least two described in judgement
Whether individual frequency range overloads；
Relating module, for determining candidate's frequency range according to the overload situations of at least two frequency range, and makes wireless terminal
Associate to candidate's frequency range or any frequency range associated into candidate's frequency range.
Further, the relating module includes：
First associative cell, if there is the first frequency range for there is band segment to overload, and in non-overloaded frequency range, is then selected
The first frequency range is selected as candidate's frequency range, wireless terminal is associated to candidate's frequency range；
Second associative cell, if the first frequency range is not present for there is band segment to overload, and in non-overloaded frequency range, then
All non-overloaded frequency ranges are selected as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
3rd associative cell, if being overloaded for all frequency ranges, selects all frequency ranges as candidate's frequency range, and make
Wireless terminal is associated in any frequency range into candidate's frequency range；
4th associative cell, if there is the first frequency range for not having frequency range to overload, and in non-overloaded frequency range, is then selected
First frequency range makes wireless terminal associate to candidate's frequency range as candidate's frequency range；
5th associative cell, if the first frequency range is not present for not having frequency range to overload, and in non-overloaded frequency range, is then selected
All non-overloaded frequency ranges are selected as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
Wherein, the first frequency range is bandwidth maximum, the frequency range of interference minimum in non-overloaded frequency range, and non-overloaded frequency range is not send out
The frequency range of raw overload.
Further, the relating module is after the probe request that first time receives wireless terminal transmission, according to institute
The overload situations for stating at least two frequency ranges determine candidate's frequency range, and the relating module also includes：
Blacklist adding device, in non-candidate frequency range, wireless terminal to be added in blacklist.
Further, the relating module also includes:
Authentication frame receiving unit, the authentication frame for receiving wireless terminal transmission；
Judging unit is supported, for judging whether wireless terminal supports candidate's frequency range or branch according to the authentication frame
Any frequency range in candidate's frequency range is held, if wireless terminal is supported candidate's frequency range or supported in candidate's frequency range
Any frequency range, then wireless terminal is associated to candidate's frequency range or association any frequency range into candidate's frequency range.
Further, the relating module also includes:
Blacklist processing unit, if not supporting candidate's frequency range for wireless terminal or not supporting candidate's frequency
Any frequency range in section, then send authentication frame and return back to wireless terminal and remove wireless terminal from the blacklist, connecing
Retrying after authentication frame for wireless terminal transmission is received, sets up and associates with wireless terminal in non-candidate frequency range, the authentication frame is returned
Status Flag in multiple carries refusal information.
The third aspect of the embodiment of the present invention provides a kind of wireless device, including memory, processor and is stored in
In the memory and the computer program that can run on the processor, described in the computing device during computer program
The step of realizing any one of first aspect methods described.
The third aspect of the embodiment of the present invention provides a kind of computer-readable recording medium, the computer-readable storage
Media storage has computer program, and the computer program realizes any one of first aspect methods described when being executed by processor
Step.
The beneficial effect that the embodiment of the present invention exists compared with prior art is：The wireless device of the embodiment of the present invention is provided
At least two frequency ranges, the service set of at least two frequency range is identical, and frequency range is carried out during radio roaming is realized
During selection, judge whether at least two frequency range overloads by wireless device, and according to the mistake of at least two frequency range
Load situation determines candidate's frequency range, then wireless terminal is associated to candidate's frequency range or association appointing into candidate's frequency range
In one frequency range.The process of Frequency Band Selection, is all dominated by wireless device, compared to the Frequency Band Selection mode dominated by wireless terminal,
In the absence of easy broken string, response lag, can not dynamically adapting wireless environment the problems such as, it is not required that the user of wireless terminal or
The keeper of person's wireless device implements additional act, it is possible to achieve automatic roaming, greatly improves Consumer's Experience.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only some of the present invention
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the schematic flow diagram of the method for the Frequency Band Selection that the embodiment of the present invention one is provided；
Fig. 2 is the schematic block diagram of the device for the Frequency Band Selection that the embodiment of the present invention two is provided；
Fig. 3 is the schematic block diagram for the wireless device that the embodiment of the present invention three is provided.
Embodiment
In describing below, in order to illustrate rather than in order to limit, it is proposed that such as tool of particular system structure, technology etc
Body details, thoroughly to understand the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention can also be realized in the other embodiments of details.In other situations, omit to well-known system, device, electricity
Road and the detailed description of method, in case unnecessary details hinders description of the invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
It is the schematic flow diagram of the method for the Frequency Band Selection that the embodiment of the present invention one is provided referring to Fig. 1, this method is applied to
Wireless device, the wireless device provides at least two frequency ranges, and the service set of at least two frequency range is identical, the nothing
Line equipment is wireless router or WAP, and this method may comprise steps of as shown in the figure：
Step S101, during wireless terminal is associated to wireless device, at least two described in wireless device judgement
Whether individual frequency range overloads.
In embodiments of the present invention, wireless device can provide two or more frequency range.The embodiment of the present invention
In, two frequency ranges that wireless device is provided are 2.4 frequency ranges and 5G frequency ranges respectively.Wherein 5G frequency ranges can be 5G Band1 or 5G
Band4.Specifically, 2.4G frequency ranges refer to that 2.4GHz-2.4835GHz, 5G Band1 refer to 5.15GHz-5.25GHz, 5G
Band4 refers to 5.725GHz-5.825GHz.
During wireless terminal is associated to wireless device, wireless device can first be obtained and closed in each frequency range
The quantity of the wireless terminal of connection or the accounting of the channel pot life of each frequency range (Clear Channel Access) value, then
According to the channel pot life of the quantity of the wireless terminal associated in each frequency range or each frequency range to account for ratio in judgement each
Whether individual frequency range overloads.
Such as, if the quantity for the wireless terminal that a certain frequency range has been associated has reached 60% or frequency range of maximum belt machine amount
CCA values show that channel pot life is less than 30%, then it is believed that the frequency range is overloaded.
Step S102, wireless device determines candidate's frequency range according to the overload situations of at least two frequency range, and makes wireless
In terminal association to candidate's frequency range or any frequency range associated into candidate's frequency range.
In embodiments of the present invention, if the overload situations at least two frequency ranges that wireless device is provided have following three kinds：Portion
Frequency-division section is overloaded, and all frequency ranges are overloaded and do not have frequency range to overload.
After the overload situations for determining at least two frequency range, wireless device can be according to the mistake of at least two frequency range
Load situation determines candidate's frequency range, and wireless terminal is associated to candidate's frequency range or association appointing into candidate's frequency range
In one frequency range.
Specifically, the wireless device determines candidate's frequency range according to the overload situations of at least two frequency range, and make nothing
Include in line terminal association to candidate's frequency range or any frequency range associated into candidate's frequency range：
If there is band segment to overload, and there is the first frequency range in non-overloaded frequency range, then the frequency of wireless device selection first
Duan Zuowei candidate's frequency ranges, make wireless terminal associate to candidate's frequency range；
If there is band segment to overload, and the first frequency range is not present in non-overloaded frequency range, then wireless device selection is all
Non-overloaded frequency range makes wireless terminal associate in any frequency range into candidate's frequency range as candidate's frequency range；
If all frequency ranges are overloaded, wireless device selects all frequency ranges as candidate's frequency range, and makes wireless terminal
Associate in any frequency range into candidate's frequency range；
If there is no frequency range to overload, and there is the first frequency range in non-overloaded frequency range, then wireless device prioritizing selection first
Frequency range makes wireless terminal associate to candidate's frequency range as candidate's frequency range；
If there is no frequency range to overload, and the first frequency range is not present in non-overloaded frequency range, then wireless device selection is all non-
Frequency range is overloaded as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
Wherein, the first frequency range is bandwidth maximum, the frequency range of interference minimum in non-overloaded frequency range, and non-overloaded frequency range is not send out
The frequency range of raw overload.
Preferably, wireless device first time receive wireless terminal transmission probe request after, according to it is described at least
The overload situations of two frequency ranges determine candidate's frequency range, and in non-candidate frequency range, wireless terminal is added in blacklist.
Wireless terminal is set to associate any frequency range to candidate's frequency range or association into candidate's frequency range described
It is further comprising the steps of before upper:
Wireless device receives the authentication frame that wireless terminal is sent；
Wireless device judges whether wireless terminal supports candidate's frequency range or the support time according to the authentication frame
Any frequency range in frequency-selecting section；
If wireless terminal supports any frequency range in candidate's frequency range or support candidate's frequency range, make wireless
Any frequency range of the terminal association to candidate's frequency range or association into candidate's frequency range.
Specifically, if wireless terminal supports candidate's frequency range or supports any frequency range in candidate's frequency range,
Then wireless device replys the authentication frame that wireless terminal is sent, after the reply of wireless terminal reception to wireless device, and sending association please
Ask to wireless device, wireless device replys associated response to wireless terminal, and association is set up in corresponding frequency range with wireless terminal.
Whole association process is performed automatically according to the agreement of IEEE802.11 wireless networks, it is not necessary to the user of wireless terminal or nothing
The keeper of line equipment does any action and configuration.
Preferably, the wireless device according to the authentication frame judge wireless terminal whether support candidate's frequency range or
Person is supported after any frequency range in candidate's frequency range, further comprising the steps of：
If step 1, wireless terminal do not support candidate's frequency range or do not support any frequency in candidate's frequency range
Section, then wireless device sends authentication frame and returns back to wireless terminal and remove wireless terminal from the blacklist, the certification
Status Flag during frame is replied carries refusal information.
Specifically, authentication frame, which is replied, includes Status Flag status fields, if wireless terminal does not support the candidate
Frequency range does not support any frequency range in candidate's frequency range, then the information that the status fields during authentication frame is replied are carried is
" refusal ", rather than " success ".Wherein, when the information that status fields are carried is " refusal ", wireless device refusal and nothing are represented
Line terminal sets up association.
Step 2, receive wireless terminal transmission retry authentication frame after, wireless device in non-candidate frequency range with it is wireless
Terminal sets up association.
Pass through above-mentioned steps, it is possible to achieve the blacklist of wireless device only comes into force once, i.e., in non-candidate frequency range, wirelessly set
The standby association for only refusing a wireless terminal, and after the association of refusal wireless terminal, wireless terminal is removed from blacklist,
Second of wireless terminal can be in non-candidate frequency range and wireless device association success.For example, wireless terminal is for the first time with wirelessly setting
During standby association, in the event of in candidate's frequency range, then be successfully associated, roamed successfully during access；If it happens in non-candidate frequency range,
Then association failure, roams failure during access.After roaming failure, all frequency ranges that wireless terminal is supported at it again are closed
Connection, if wireless terminal supports candidate's frequency range, is successfully associated, is roamed successfully during access, if wireless terminal only supports non-candidate frequency
Section, then its secondary association can succeed.In addition, being sufficiently used the re-association characteristic of wireless terminal, promote wireless
Terminal is associated trial in multiple frequency ranges, so as to realize without record or learn the frequency range that wireless terminal is supported.
Wherein, wireless terminal retries the action of association, is automatically performed in itself by wireless terminal, it is not necessary to wireless terminal user
Do any action and configuration.The software-driven of wireless terminal is responsible for completing all actions retried, and the retry action belongs to IEEE
The standard regulation of 802.11 wireless networks, wireless terminal can send authentication frame automatically to wireless device, corresponding to wireless device
Frequency range sets up association.
Because wireless terminal is when being scanned with associating, probe request is sent to wireless device, wherein, scanning
When, wireless terminal sends multiple probe requests to wireless device, and when associating, wireless terminal first sends to wireless device and detected
Claim frame, then followed by transmission authentication frame.
In the embodiment of the present invention, after first time receives probe request, by wireless device in non-candidate frequency range by nothing
Line terminal is added in blacklist, due in scanning, without other follow-up actions after probe request, so blacklist is super
When after release, do not interfere with the behavior of wireless terminal；And in associating, authentication frame can be closelyed follow after probe request,
Now blacklist just serves the effect for preventing association, can refuse wireless terminal and associate to non-candidate frequency range, and force nothing
In line terminal association to candidate's frequency range.
In addition, setting up blacklist when the probe request of wireless terminal transmission is received in first time, blacklist only comes into force
Once, so as to avoid record wireless terminal information.
In addition, blacklist only comes into force once, candidate's frequency range that wireless terminal can be avoided not support wireless device to select, and
Black-listed frequency bands are associated always, ultimately result in the problem of wireless terminal can not associate upper with wireless device.
Such as, it is assumed that terminal have sent probe request in 2.4G or 5G Band4 one of frequency range, it is further assumed that
Wireless device, which have selected 5G Band1 frequency ranges as candidate's frequency range, allows wireless terminal to associate, and now wireless device is in 2.4G and 5G
Blacklist is all established on Band4, if blacklist comes into force always, wireless terminal is not just associated, so only come into force once,
So wireless terminal can be retried after the failure of the first secondary association, be then successfully associated for the second time, so, wireless terminal always can
Wireless device in association, it is not necessary to record the information of wireless terminal.
It is illustrated below：
If wireless device supports 2.4G frequency ranges and 5G frequency ranges, wireless device judges whether 2.4G frequency ranges and 5G frequency ranges occurred
Carry, if 2.4G frequency ranges and 5G frequency ranges are not overloaded, i.e., all frequency ranges are non-overloaded frequency ranges.Wherein, 5G frequency ranges are two
Bandwidth is maximum in individual frequency range, disturbs minimum frequency range, then wireless device selects 5G frequency ranges as candidate's frequency range, and makes wireless terminal
Association in remaining frequency range, such as, in 2.4G frequency ranges, wireless terminal is added in blacklist to 5G frequency ranges.
If wireless device supports 2.4G frequency ranges, wireless device judges whether 2.4G frequency ranges overload, if 2.4G frequency ranges do not have
Have and overload, i.e., all frequency ranges are non-overloaded frequency ranges, then wireless device selects 2.4G frequency ranges as candidate's frequency range, and makes nothing
Line terminal association is to 2.4G frequency ranges；
If wireless device supports 5G frequency ranges, wireless device judges whether 5G frequency ranges overload, if 5G does not overload,
I.e. all frequency ranges are non-overloaded frequency ranges, then wireless device select 5G frequency ranges as candidate's frequency range, and make wireless terminal associate to
5G frequency ranges；
If wireless device supports 2.4G frequency ranges and 5G frequency ranges, if 5G frequency ranges are not overloaded, and 2.4G frequency ranges occurred
Carry, then wireless device selects 5G frequency ranges as candidate's frequency range, and wireless terminal is associated to 5G frequency ranges, and in remaining frequency range, than
Such as in 2.4G frequency ranges, wireless terminal is added in blacklist；
If wireless device supports 2.4G frequency ranges and 5G frequency ranges, if 2.4G frequency ranges are not overloaded, and 5G frequency ranges occurred
Carry, then wireless device selects 2.4G frequency ranges as candidate's frequency range, and wireless terminal is associated to 2.4G frequency ranges, and in remaining frequency
Section, such as, in 5G frequency ranges, wireless terminal is added in blacklist；
If wireless device supports 2.4G frequency ranges and 5G frequency ranges, and 2.4G frequency ranges and 5G frequency ranges are overloaded, then are wirelessly set
Alternative 2.4G frequency ranges and 5G frequency ranges make wireless terminal associate to 2.4G frequency ranges or 5G frequency ranges as candidate's frequency range, wirelessly
Terminal can freely access all frequency ranges of wireless device support.
If wireless terminal be single-frequency terminal, only support 2.4G, do not support 5G, now wireless device provide double frequency 2.4G and
5G.Wireless terminal sends probe request to wireless device, and wireless device is received after probe request, determines that candidate's frequency range is
5G, in non-candidate frequency range 2.4G, wireless terminal is added in blacklist, so as to encourage wireless terminal to be preferentially associated with 5G.Nothing
Line terminal is after 2.4G frequency ranges send authentication frame to wireless device, and now, blacklist comes into force, and wireless device does not send authentication frame and returned
It is multiple to prevent the wireless terminal of single-frequency in 2.4G association to wireless terminal, then release blacklist, i.e., by wireless terminal from black
Removed in list.Because the wireless terminal of single-frequency only supports 2.4G, so wireless terminal can resend authentication frame extremely in 2.4G
Wireless device, now because blacklist has been released, so, wireless terminal can be in 2.4G frequency ranges and wireless device association success.
If wireless terminal is dual band terminal, 2.4G is both supported, 5G is also supported, now wireless device provides 2.4G and 5G.
Wireless terminal both can send probe request in 2.4G frequency ranges, can also send probe request, wireless device in 5G frequency ranges
Receive after probe request, it is 5G to determine candidate's frequency range, and in non-candidate frequency range 2.4G, wireless terminal is added into blacklist
In, so as to encourage wireless terminal to be preferentially associated with 5G.It is wireless whole if wireless terminal sends authentication frame to wireless device in 5G frequency ranges
End can be in 5G frequency ranges and wireless device association success.If wireless terminal is sent after 2.4G authentication frame to wireless device, now, black
List comes into force, and the authentication frame that wireless device does not send 2.4G returns back to wireless terminal, prevents the wireless terminal of double frequency 2.4G's
After association, blacklist is then released, i.e., is removed wireless terminal from blacklist.Subsequently, wireless terminal can continue in 5G frequency ranges
Send probe request to attempt to associate with authentication frame, so as to be successfully associated, reach the purpose of radio roaming.
The wireless device of the embodiment of the present invention provides at least two frequency ranges, the service set phase of at least two frequency range
Together, during radio roaming is realized, judge whether at least two frequency range overloads by wireless device, and according to institute
The overload situations for stating at least two frequency ranges determine candidate's frequency range, then wireless terminal is associated to candidate's frequency range or is associated extremely
In any frequency range in candidate's frequency range.During radio roaming, all dominated by wireless device during Frequency Band Selection,
Compared to the Frequency Band Selection mode dominated by wireless terminal, it is advantageous in that：One is that easy broken string, response lag, Wu Fadong is not present
The problems such as state adapts to wireless environment, it is not required that the user of wireless terminal or the keeper of wireless device implement extra dynamic
Make, it is possible to achieve automatic roaming, greatly improve Consumer's Experience；Two be that can provide load balancing in multiple frequency ranges.
It should be understood that the size of the sequence number of each step is not meant to the priority of execution sequence, each process in above-described embodiment
Execution sequence should determine that the implementation process without tackling the embodiment of the present invention constitutes any limit with its function and internal logic
It is fixed.
It is the schematic block diagram of the device for the Frequency Band Selection that the embodiment of the present invention two is provided referring to Fig. 2, for convenience of description,
It illustrate only the part related to the embodiment of the present invention.
The device 2 of the Frequency Band Selection is applied to wireless device, and the wireless device provides at least two frequency ranges, it is described extremely
The service set of few two frequency ranges is identical, and the device 2 of the Frequency Band Selection includes：Overload judge module 21 and relating module
22。
Wherein, judge module 21 is overloaded, during being associated in wireless terminal to wireless device, judges described
Whether at least two frequency ranges overload；
Relating module 22, for determining candidate's frequency range according to the overload situations of at least two frequency range, and makes wireless end
In end association to candidate's frequency range or any frequency range associated into candidate's frequency range.
Further, the relating module 22 includes：
First associative cell, if there is the first frequency range for there is band segment to overload, and in non-overloaded frequency range, is then selected
The first frequency range is selected as candidate's frequency range, wireless terminal is associated to candidate's frequency range；
Second associative cell, if the first frequency range is not present for there is band segment to overload, and in non-overloaded frequency range, then
All non-overloaded frequency ranges are selected as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
3rd associative cell, if being overloaded for all frequency ranges, selects all frequency ranges as candidate's frequency range, and make
Wireless terminal is associated in any frequency range into candidate's frequency range；
4th associative cell, if there is the first frequency range for not having frequency range to overload, and in non-overloaded frequency range, is then selected
First frequency range makes wireless terminal associate to candidate's frequency range as candidate's frequency range；
5th associative cell, if the first frequency range is not present for not having frequency range to overload, and in non-overloaded frequency range, is then selected
All non-overloaded frequency ranges are selected as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
Wherein, the first frequency range is bandwidth maximum, the frequency range of interference minimum in non-overloaded frequency range, and non-overloaded frequency range is not send out
The frequency range of raw overload.
Further, the relating module 22 is received in first time after the probe request that wireless terminal is sent, according to
The overload situations of at least two frequency range determine candidate's frequency range, and the relating module 22 also includes：
Blacklist adding device, in non-candidate frequency range, wireless terminal to be added in blacklist.
Further, the relating module 22 also includes:
Authentication frame receiving unit, the authentication frame for receiving wireless terminal transmission；
Judging unit is supported, for judging whether wireless terminal supports candidate's frequency range or branch according to the authentication frame
Any frequency range in candidate's frequency range is held, if wireless terminal is supported candidate's frequency range or supported in candidate's frequency range
Any frequency range, then wireless terminal is associated to candidate's frequency range or association any frequency range into candidate's frequency range.
Further, the relating module 22 also includes：
Blacklist processing unit, if not supporting candidate's frequency range for wireless terminal or not supporting candidate's frequency
Any frequency range in section, then send authentication frame and return back to wireless terminal and remove wireless terminal from the blacklist, connecing
Retrying after authentication frame for wireless terminal transmission is received, sets up and associates with wireless terminal in non-candidate frequency range, the authentication frame is returned
Status Flag in multiple carries refusal information.
Fig. 3 is the schematic block diagram for the wireless device that the embodiment of the present invention three is provided.As shown in figure 3, the embodiment is wireless
Equipment 3 includes：Processor 30, memory 31 and it is stored in the memory 31 and can be run on the processor 30
The program of the method for computer program 32, such as Frequency Band Selection.The processor 30 is realized when performing the computer program 32
Step in the embodiment of the method for each above-mentioned Frequency Band Selection, such as step 101 shown in Fig. 1 are to 102.Or, the processing
Device 30 realizes the function of each module/unit in Fig. 2 shown device embodiments, such as Fig. 2 institutes when performing the computer program 32
Show the function of module 21 to 22.
Exemplary, the computer program 32 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 31, and are performed by the processor 30, to complete the present invention.Described one
Individual or multiple module/units can complete the series of computation machine programmed instruction section of specific function, and the instruction segment is used for
Implementation procedure of the computer program 32 in the wireless device 3 is described.For example, the computer program 32 can be divided
It is cut into overload judge module and relating module.
Each module concrete function is as follows：
Judge module is overloaded, during being associated in wireless terminal to wireless device, at least two described in judgement
Whether individual frequency range overloads；
Relating module, for determining candidate's frequency range according to the overload situations of at least two frequency range, and makes wireless terminal
Associate to candidate's frequency range or any frequency range associated into candidate's frequency range.
Further, the relating module includes：
First associative cell, if there is the first frequency range for there is band segment to overload, and in non-overloaded frequency range, is then selected
The first frequency range is selected as candidate's frequency range, wireless terminal is associated to candidate's frequency range；
Second associative cell, if the first frequency range is not present for there is band segment to overload, and in non-overloaded frequency range, then
All non-overloaded frequency ranges are selected as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
3rd associative cell, if being overloaded for all frequency ranges, selects all frequency ranges as candidate's frequency range, and make
Wireless terminal is associated in any frequency range into candidate's frequency range；
4th associative cell, if there is the first frequency range for not having frequency range to overload, and in non-overloaded frequency range, is then selected
First frequency range makes wireless terminal associate to candidate's frequency range as candidate's frequency range；
5th associative cell, if the first frequency range is not present for not having frequency range to overload, and in non-overloaded frequency range, is then selected
All non-overloaded frequency ranges are selected as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
Wherein, the first frequency range is bandwidth maximum, the frequency range of interference minimum in non-overloaded frequency range, and non-overloaded frequency range is not send out
The frequency range of raw overload.
Further, the relating module is after the probe request that first time receives wireless terminal transmission, according to institute
The overload situations for stating at least two frequency ranges determine candidate's frequency range, and the relating module 22 also includes：
Blacklist adding device, in non-candidate frequency range, wireless terminal to be added in blacklist.
Further, the relating module also includes:
Authentication frame receiving unit, the authentication frame for receiving wireless terminal transmission；
Judging unit is supported, for judging whether wireless terminal supports candidate's frequency range or branch according to the authentication frame
Any frequency range in candidate's frequency range is held, if wireless terminal is supported candidate's frequency range or supported in candidate's frequency range
Any frequency range, then wireless terminal is associated to candidate's frequency range or association any frequency range into candidate's frequency range.
Further, the relating module also includes：
Blacklist processing unit, if not supporting candidate's frequency range for wireless terminal or not supporting candidate's frequency
Any frequency range in section, then send authentication frame and return back to wireless terminal and remove wireless terminal from the blacklist, connecing
Retrying after authentication frame for wireless terminal transmission is received, sets up and associates with wireless terminal in non-candidate frequency range, the authentication frame is returned
Status Flag in multiple carries refusal information.
The wireless device 3 can be that the calculating such as desktop PC, notebook, palm PC and cloud server is set
It is standby.The wireless device may include, but be not limited only to, processor 30, memory 31.It will be understood by those skilled in the art that Fig. 3
Only the example of wireless device 3, does not constitute the restriction to wireless device 3, can include than illustrating more or less portions
Part, either combines some parts or different parts, such as described wireless device can also include input-output equipment, net
Network access device, bus etc..
Alleged processor 30 can be CPU (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) or other PLDs, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
Deng.
The memory 31 can be the internal storage unit of the wireless device 3, such as hard disk of wireless device 3 or interior
Deposit.The memory 31 can also be the External memory equipment of the wireless device 3, such as is equipped with described wireless device 3
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodges
Deposit card (Flash Card) etc..Further, the memory 31 can also both include the storage inside list of the wireless device 3
Member also includes External memory equipment.The memory 31 is used for needed for storing the computer program and the wireless device
Other programs and data.The memory 31 can be also used for temporarily storing the data that has exported or will export.
It is apparent to those skilled in the art that, for convenience of description and succinctly, only with above-mentioned each work(
Energy unit, the division progress of module are for example, in practical application, as needed can distribute above-mentioned functions by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completion
The all or part of function of description.Each functional unit, module in embodiment can be integrated in a processing unit, also may be used
To be that unit is individually physically present, can also two or more units it is integrated in a unit, it is above-mentioned integrated
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.In addition, each function list
Member, the specific name of module are also only to facilitate mutually differentiation, is not limited to the protection domain of the application.Said system
The specific work process of middle unit, module, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, without detailed description or note in some embodiment
The part of load, may refer to the associated description of other embodiments.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
, can be with embodiment provided by the present invention, it should be understood that disclosed device/terminal device and method
Realize by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of division of logic function there can be other dividing mode, for example when actually realizing
Multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.Separately
A bit, shown or discussed coupling or direct-coupling or communication connection each other can be by some interfaces, device
Or INDIRECT COUPLING or the communication connection of unit, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated module/unit realized using in the form of SFU software functional unit and as independent production marketing or
In use, can be stored in a computer read/write memory medium.Understood based on such, the present invention realizes above-mentioned implementation
All or part of flow in example method, can also instruct the hardware of correlation to complete, described meter by computer program
Calculation machine program can be stored in a computer-readable recording medium, and the computer program can be achieved when being executed by processor
The step of stating each embodiment of the method..Wherein, the computer program includes computer program code, the computer program
Code can be source code form, object identification code form, executable file or some intermediate forms etc..Computer-readable Jie
Matter can include：Can carry any entity or device of the computer program code, recording medium, USB flash disk, mobile hard disk,
Magnetic disc, CD, computer storage, read-only storage (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium is included can carry out appropriate increasing according to legislation in jurisdiction and the requirement of patent practice
Subtract, such as in some jurisdictions, according to legislation and patent practice, computer-readable medium include be electric carrier signal and
Telecommunication signal.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to foregoing reality
Example is applied the present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed
Or replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme, all should
Within protection scope of the present invention.
Claims (12)
1. a kind of method of Frequency Band Selection, it is characterised in that applied to wireless device, the wireless device provides at least two frequencies
Section, the service set of at least two frequency range is identical, and methods described includes：
During wireless terminal is associated to wireless device, wireless device judges whether at least two frequency range occurs
Overload；
Wireless device determines candidate's frequency range according to the overload situations of at least two frequency range, and wireless terminal is associated to described
Candidate's frequency range or association are in any frequency range into candidate's frequency range.
2. according to the method described in claim 1, it is characterised in that the wireless device is according to the mistake of at least two frequency range
Load situation determines candidate's frequency range, and wireless terminal is associated to candidate's frequency range or association appointing into candidate's frequency range
Include in one frequency range：
If there is band segment to overload, and there is the first frequency range in non-overloaded frequency range, then wireless device selects the first frequency range to make
For candidate's frequency range, wireless terminal is set to associate to candidate's frequency range；
If there is band segment to overload, and the first frequency range is not present in non-overloaded frequency range, then wireless device selects all non-mistakes
Carrier frequency section makes wireless terminal associate in any frequency range into candidate's frequency range as candidate's frequency range；
If all frequency ranges are overloaded, wireless device selects all frequency ranges as candidate's frequency range, and associates wireless terminal
In any frequency range into candidate's frequency range；
If there is no frequency range to overload, and there is the first frequency range in non-overloaded frequency range, then wireless device selects the first frequency range conduct
Candidate's frequency range, and wireless terminal is associated to candidate's frequency range；
If there is no frequency range to overload, and the first frequency range is not present in non-overloaded frequency range, then wireless device selects all non-overloaded
Frequency range makes wireless terminal associate in any frequency range into candidate's frequency range as candidate's frequency range；
Wherein, the first frequency range is bandwidth maximum, the frequency range of interference minimum in non-overloaded frequency range, and non-overloaded frequency range is that do not occurred
The frequency range of load.
3. according to the method described in claim 1, it is characterised in that wireless device receives wireless terminal transmission in first time
After probe request, candidate's frequency range is determined according to the overload situations of at least two frequency range, in the wireless device according to institute
State at least two frequency ranges overload situations determine candidate's frequency range after, in addition to：
In non-candidate frequency range, wireless terminal is added in blacklist by wireless device.
4. method according to claim 3, it is characterised in that it is described make wireless terminal associate to candidate's frequency range or
Before person is associated in any frequency range into candidate's frequency range, in addition to:
Wireless device receives the authentication frame that wireless terminal is sent；
Wireless device judges whether wireless terminal supports candidate's frequency range or support candidate's frequency according to the authentication frame
Any frequency range in section；
If wireless terminal supports any frequency range in candidate's frequency range or support candidate's frequency range, make wireless terminal
Any frequency range into candidate's frequency range is associated to candidate's frequency range or association.
5. method according to claim 4, it is characterised in that judge wireless according to the authentication frame in the wireless device
After whether terminal supports candidate's frequency range or supports any frequency range in candidate's frequency range, in addition to：
If wireless terminal does not support candidate's frequency range or do not support any frequency range in candidate's frequency range, wirelessly set
Preparation send authentication frame to return back to wireless terminal and remove wireless terminal from the blacklist, the shape in the authentication frame reply
State mark carries refusal information；
Receive wireless terminal transmission retry authentication frame after, wireless device in non-candidate frequency range with wireless terminal set up close
Connection.
6. a kind of device of Frequency Band Selection, it is characterised in that applied to wireless device, the wireless device provides at least two frequencies
Section, the service set of at least two frequency range is identical, and described device includes：
Judge module is overloaded, during being associated in wireless terminal to wireless device, at least two frequency is judged
Whether section overloads；
Relating module, for determining candidate's frequency range according to the overload situations of at least two frequency range, and associates wireless terminal
To candidate's frequency range or association in any frequency range into candidate's frequency range.
7. device according to claim 6, it is characterised in that relating module includes：
First associative cell, if there is the first frequency range for there is band segment to overload, and in non-overloaded frequency range, then selects the
One frequency range makes wireless terminal associate to candidate's frequency range as candidate's frequency range；
Second associative cell, if the first frequency range is not present for there is band segment to overload, and in non-overloaded frequency range, is then selected
All non-overloaded frequency ranges make wireless terminal associate in any frequency range into candidate's frequency range as candidate's frequency range；
3rd associative cell, if being overloaded for all frequency ranges, selects all frequency ranges as candidate's frequency range, and makes wireless
Terminal association is in any frequency range into candidate's frequency range；
4th associative cell, if there is the first frequency range for not having frequency range to overload, and in non-overloaded frequency range, then selects first
Frequency range makes wireless terminal associate to candidate's frequency range as candidate's frequency range；
5th associative cell, if the first frequency range is not present for not having frequency range to overload, and in non-overloaded frequency range, then selects institute
There is non-overloaded frequency range as candidate's frequency range, and wireless terminal is associated in any frequency range into candidate's frequency range；
Wherein, the first frequency range is bandwidth maximum, the frequency range of interference minimum in non-overloaded frequency range, and non-overloaded frequency range is that do not occurred
The frequency range of load.
8. device according to claim 6, it is characterised in that the relating module receives wireless terminal hair in first time
After the probe request sent, candidate's frequency range is determined according to the overload situations of at least two frequency range, the relating module is also wrapped
Include：
Blacklist adding device, in non-candidate frequency range, wireless terminal to be added in blacklist.
9. device according to claim 8, it is characterised in that the relating module also includes:
Authentication frame receiving unit, the authentication frame for receiving wireless terminal transmission；
Judging unit is supported, for judging whether wireless terminal supports candidate's frequency range or support institute according to the authentication frame
Any frequency range in candidate's frequency range is stated, if wireless terminal supports candidate's frequency range or supports appointing in candidate's frequency range
One frequency range, then make wireless terminal associate any frequency range to candidate's frequency range or association into candidate's frequency range.
10. device according to claim 9, it is characterised in that the relating module also includes:
Blacklist processing unit, if not supporting candidate's frequency range for wireless terminal or not supporting in candidate's frequency range
Any frequency range, then send authentication frame return back to wireless terminal and remove wireless terminal from the blacklist, receiving
What wireless terminal was sent retries after authentication frame, sets up and associates with wireless terminal in non-candidate frequency range, during the authentication frame is replied
Status Flag carry refusal information.
11. a kind of wireless device, including memory, processor and it is stored in the memory and can be on the processor
The computer program of operation, it is characterised in that realize such as claim 1 to 5 described in the computing device during computer program
The step of any one methods described.
12. a kind of computer-readable recording medium, the computer-readable recording medium storage has computer program, its feature exists
In the step of realizing such as any one of claim 1 to 5 methods described when the computer program is executed by processor.
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| CN201710382358.9A CN107148035B (en) | 2017-05-25 | 2017-05-25 | Frequency band selection method and device and wireless equipment |
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|---|---|---|---|
| CN201710382358.9A CN107148035B (en) | 2017-05-25 | 2017-05-25 | Frequency band selection method and device and wireless equipment |
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| CN107148035B (en) | 2020-01-31 |
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