CN106550425A - Wireless access device and its load management method, terminal and cut-in method, system - Google Patents
Wireless access device and its load management method, terminal and cut-in method, system Download PDFInfo
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- CN106550425A CN106550425A CN201510590583.2A CN201510590583A CN106550425A CN 106550425 A CN106550425 A CN 106550425A CN 201510590583 A CN201510590583 A CN 201510590583A CN 106550425 A CN106550425 A CN 106550425A
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- 238000007726 management method Methods 0.000 title claims abstract description 20
- 239000000523 sample Substances 0.000 claims description 35
- 239000000284 extract Substances 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 101100161473 Arabidopsis thaliana ABCB25 gene Proteins 0.000 description 6
- 101100096893 Mus musculus Sult2a1 gene Proteins 0.000 description 6
- 101150081243 STA1 gene Proteins 0.000 description 6
- 101100395869 Escherichia coli sta3 gene Proteins 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
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Abstract
The invention discloses a kind of wireless access device and its load management method, terminal and its cut-in method, system, when terminal is to wireless access device request the first working frequency range of access, the working frequency range ability information supported by itself is sent to wireless access device；Wireless access device sends response message, the access of control terminal to terminal according to the working frequency range ability information of itself current loading condition of the first working frequency range and terminal.Namely the wireless access device in the present invention can to access in terminal request be the working frequency range ability information that is directly obtained terminal, therefore can decide whether to access the terminal based on the working frequency range ability information of itself current loading condition of the first working frequency range and terminal, so as to realize the reasonable management to loading.
Description
Technical field
The present invention relates to the communications field, and in particular to a kind of wireless access device and its load management method, end
End and its cut-in method, system.
Background technology
Mobile Internet is changing the life of people, and people need Internet service anywhere or anytime, but
Limited by rate again, expedited the emergence of developing rapidly for WLAN access services.WLAN(Wireless Local
Area Networks, WLAN) equipment has 2 kinds of mode of operations：AP (Access Point, nothing
Line access point) and STA (station, terminal) pattern, the wlan device of most of client is operated in STA
Pattern, accesses AP, realizes function of surfing the Net by AP.STA needs scanning to obtain AP information before accessing, have
Actively and passively 2 kinds of modes, are passive mode as shown in Figure 1, and STA receives the scanning for beacon of AP broadcast and disappears
Breath (i.e. Beacon frames) obtains AP information.Active mode shown in Fig. 2, STA active broadcasts send detection
Request (Probe Request), receives AP and responds probe response (Probe Response), by Probe
Response obtains AP information.Shown in Figure 3, after obtaining AP information, STA can be to initiation association
Process, by sending (Re) association Request (re-association/association request).Receive access
After request, according to itself active user's loading condition and STA professional abilities, AP determines whether that STA is accessed,
Respond (Re) association Response (re-association/associated response).
WLAN has the working frequency range of 2.4GHz, 5.8GHz two, but not all AP and STA are propped up
Hold.For the AP for supporting two-frequency operation, according to the load of the ability and different frequency range of STA, in a balanced way not
With frequency range accessing user, fully ensure the performance and bandwidth of each wireless user, clothes preferably can be provided
Business.In 802.11 agreements (IEEE Standard for Information technology
Telecommunications and information exchange between systems Local and
Metropolitan area networks Specific requirements) the 11st part WLAN
Media access control (MAC) and physical layer (PHY) specification (Part 11:Wireless LAN Medium Access
Control (MAC) and Physical Layer (PHY) Specifications) in, related news do not have
Have embodiment AP, STA band support information, AP cannot direct access STA support band information.Current
Load-balancing method is in the following way：According to 2 frequency ranges receive STA Probe Request,
(Re) association Request information, AP obtain STA and support that double frequency segment information, two frequency ranges are all received
Even if the STA to request supports two-band.But as STA is a lot, and moving, STA initiates Probe
Request may only be active scan AP information, may have moved away from AP coverages after a time.
AP resources are limited, it is impossible to preserve the STA information of all active scan always, and STA information needs fixed
When refresh, when STA is accessed, its information may be refreshed discarding.As STA is not necessarily at 2
Frequency range all initiates (Re) association Request requests or asynchronous initiation, for the record not having
STA, AP can only be one Latency response times of setting, spend the time delay of setting, could decision-making permission
Hold two-band STA to access in that frequency range.This method can increase access delay, while cannot be distinguished by STA
One-segment is only supported, or supports two-band, but only request is initiated in a frequency range, can only be passively according to STA
Behavior, it is impossible to reasonably managed according to STA abilities.
The content of the invention
The main technical problem to be solved in the present invention is to provide a kind of wireless access device and its load management side
Method, terminal and its cut-in method, system, solve existing wireless access device and are unable to the support of direct access terminal
Band information cause to carry out the problem of reasonable management to load.
To solve above-mentioned technical problem, the present invention provides a kind of wireless access device load management method, including：
Wireless access device obtains the terminal and is supported when terminal accesses the first working frequency range to its request
Working frequency range ability information；The wireless access device supports the first working frequency range and the second working frequency range；
The wireless access device is according to the current loading condition of first working frequency range and the working frequency range
Ability information sends response message to the terminal, controls the access of the terminal.
In an embodiment of the present invention, the wireless access device obtains the working frequency range ability information
Including：
The access request that the terminal sends is received, the work supported comprising the terminal in the access request
Make frequency range ability information；
The working frequency range ability information is extracted from the access request.
In an embodiment of the present invention, the wireless access device is current according to first working frequency range
Loading condition and the working frequency range ability information to the terminal send response message include：
Judge whether first working frequency range present load allows to access new terminal, in this way, to the terminal
Sending allows to access response message；
Otherwise, judge whether the terminal supports the second working frequency range according to the working frequency range ability information,
As supported, judge whether second working frequency range present load allows to access new terminal, such as allow, to institute
State terminal to send for indicating to access the instruction response message of the second working frequency range.
In an embodiment of the present invention, judge that first working frequency range present load does not allow to access newly
After terminal, before judging whether the terminal supports the second working frequency range；Or judging the terminal not
When supporting second working frequency range, also include：
Whether there is in judging the operational terminal for currently accessed first working frequency range and support the second work frequency
Whether the target terminal and second working frequency range present load of section allows to access new terminal, in this way, from
Release at least one is selected in the target terminal, and indicates that the target terminal being released accesses the second frequency again
Section, then sending to the terminal allows to access response message.
In an embodiment of the present invention, when judging that the terminal does not support the second working frequency range, or judge
When second working frequency range present load does not allow to access new terminal, send refusal and access to the terminal and ring
Answer message.
In order to solve the above problems, present invention also offers a kind of terminal access method, including：
Terminal finds the wireless access device for supporting the first working frequency range and the second working frequency range；
The terminal accesses first working frequency range to wireless access device request, and itself is supported
Working frequency range ability information is sent to the wireless access device；
The terminal receive the wireless access device according to the current loading condition of first working frequency range and
The response message that the working frequency range ability information is sent to oneself；
The terminal carries out the subsequent treatment of access process according to the response message.
In an embodiment of the present invention, terminal finds to support the first working frequency range and the second working frequency range
Wireless access device includes：
The terminal receives the scanning for beacon message that the wireless access device sends, the scanning for beacon message
Whether the ability mark of first working frequency range and second working frequency range is supported comprising the wireless access device
Know；The terminal extracts the ability label in the scanning for beacon message, and judges institute according to the ability label
State whether wireless access device supports first working frequency range and the second working frequency range；
Or,
The terminal sends probe requests thereby to the wireless access device and receives the wireless access device feedback
Probe response message, whether the probe response message support described first containing the wireless access device
The ability label of working frequency range and the second working frequency range；The terminal extracts the energy in the probe response message
Power is identified, and judges whether the wireless access device supports first working frequency range according to the ability label
With the second working frequency range.
In an embodiment of the present invention, the terminal is carried out after access process according to the response message
Continuous process includes：
When the response message is wireless access device feedback for indicating to access the second working frequency range
When indicating response message, the terminal accesses the second working frequency range to wireless access device request；
When the permission that the response message is the wireless access device feedback accesses response message, the end
Terminate into first working frequency range；
When the refusal that the response message is the wireless access device feedback accesses response message, the end
Terminate the access process to the wireless access device in end.
In order to solve the above problems, originally bright to additionally provide a kind of wireless access device, which supports the first work frequency
Section and the second working frequency range, including：
Information extraction modules, for terminal to the wireless access device request access the first working frequency range when,
Obtain the working frequency range ability information supported by the terminal；
Processing module is accessed, for according to the current loading condition of first working frequency range and work frequency
Section ability information sends response message to the terminal, controls the access of the terminal.
In an embodiment of the present invention, described information extraction module includes information receiving submodule and information
Extracting sub-module；
Described information receiving submodule is used to receive the access request that the terminal sends, in the access request
Comprising the working frequency range ability information supported by the terminal；
Described information extracting sub-module is for extracting the working frequency range ability information from the access request.
In an embodiment of the present invention, the access processing module includes the first process submodule, ability
Judging submodule, second processing submodule；
The first process submodule is used to judge whether first working frequency range present load allows to access newly
Terminal, in this way, sending to the terminal allows to access response message, otherwise notifies that the ability judges submodule
Block；
The ability judging submodule for according to described first process submodule notice, according to the work
Frequency range ability information judges whether the terminal supports the second working frequency range, such as supports, notifies at described second
Reason submodule；
The second processing submodule judges described second for the notice according to the ability judging submodule
Whether working frequency range present load allows to access new terminal, such as allows, and sends for indicating to connect to the terminal
Enter the instruction response message of the second working frequency range.
In an embodiment of the present invention, the access processing module also processes submodule including the 3rd, uses
In described first process submodule judge first working frequency range present load do not allow access new terminal it
Afterwards, before the ability judging submodule judges whether the terminal supports the second working frequency range；Or described
When ability judging submodule judges that the terminal does not support second working frequency range, judgement has currently accessed institute
State with the presence or absence of the target terminal for supporting the second working frequency range and described in the operational terminal of the first working frequency range
Whether the second working frequency range present load allows to access new terminal, in this way, selects to release from the target terminal
At least one is put, and indicates that the target terminal being released accesses the second frequency range again, then sent out to the terminal
Permission is sent to access response message.
In order to solve the above problems, present invention also offers a kind of terminal, including：
Discovery module, for finding to support the wireless access device of the first working frequency range and the second working frequency range；
Access request module, for accessing the first working frequency range to wireless access device request, and will be from
The working frequency range ability information supported by body is sent to the wireless access device；
Receiver module, for receiving the wireless access device according to the current load of first working frequency range
The response message that situation and the working frequency range ability information are sent to the terminal；
Processing module, for the subsequent treatment of access process is carried out according to the response message.
In an embodiment of the present invention, the discovery module includes being actively discovered submodule or passive discovery
Submodule；
The passive discovery submodule is used to receive the scanning for beacon message that the wireless access device sends, institute
State whether scanning for beacon message package supports first working frequency range and the second work containing the wireless access device
The ability label of frequency range, extracts the ability label in the scanning for beacon message, and is sentenced according to the ability label
Whether the wireless access device that breaks supports first working frequency range and the second working frequency range；
It is described to be actively discovered submodule for sending probe requests thereby to the wireless access device and receiving the nothing
The probe response message of line access device feedback, the probe response message containing the wireless access device is
The no ability label for supporting first working frequency range and the second working frequency range, extracts the probe response message
In ability label, and judge whether the wireless access device supports first work according to the ability label
Make frequency range and the second working frequency range.
In an embodiment of the present invention, the processing module includes：
First processes submodule, for being wireless access device feedback for referring to when the response message
When showing the instruction response message of the second working frequency range of access, the second work is accessed to wireless access device request
Make frequency range；
Second processing submodule, for when the response message be wireless access device feedback allow connect
When entering response message, first working frequency range is accessed；
3rd processes submodule, for connecing when the refusal that the response message is the wireless access device feedback
When entering response message, terminate the access process to the wireless access device.
In order to solve the above problems, present invention also offers a kind of communication system, including as above wireless
Access device and terminal as above；The terminal accesses WLAN by the wireless access device.
The invention has the beneficial effects as follows：
Wireless access device and its load management method, terminal and its cut-in method, system that the present invention is provided,
When terminal is to wireless access device request the first working frequency range of access, the working frequency range ability supported by itself
Information is sent to wireless access device；Wireless access device is according to the current load feelings of itself the first working frequency range
The working frequency range ability information of condition and terminal sends response message, the access of control terminal to terminal.Namely this
Wireless access device in invention can be directly obtained the working frequency range ability of terminal when terminal request is accessed
Information, therefore can be believed based on the working frequency range ability of itself current loading condition of the first working frequency range and terminal
Breath decides whether to access the terminal, so as to realize the reasonable management to loading.
Description of the drawings
Fig. 1 terminals passively find the schematic flow sheet of WAP；
Fig. 2 terminals are actively discovered the schematic flow sheet of WAP；
Fig. 3 is the schematic flow sheet that terminal sends access request to WAP；
Fig. 4 is the middle terminal access process schematic diagram that the embodiment of the present invention one is provided；
Fig. 5 is the schematic flow sheet that the terminal that the embodiment of the present invention one is provided passively finds WAP；
Fig. 6 is the schematic flow sheet that the terminal that the embodiment of the present invention one is provided is actively discovered WAP；
Fig. 7 is the wireless access device load management method flow schematic diagram that the embodiment of the present invention one is provided；
Fig. 8 is the schematic flow sheet that the wireless access device control terminal that the embodiment of the present invention one is provided is accessed；
Fig. 9 is the communication system architecture schematic diagram that the embodiment of the present invention two is provided；
Figure 10 is the wireless access device structural representation that the embodiment of the present invention two is provided；
Figure 11 is the terminal structure schematic diagram that the embodiment of the present invention two is provided.
Specific embodiment
The present invention wireless access device (i.e. AP) can terminal (STA) request access when direct access
To the working frequency range ability information of terminal, so can based on itself current loading condition of the first working frequency range and
The working frequency range ability information of terminal decides whether to access the terminal, so as to realize the reasonable management to loading.
Accompanying drawing is combined below by specific embodiment to be described in further detail the present invention.
Embodiment one：
In the present embodiment, the access process of end side is shown in Figure 4, including：
Step 401：Terminal finds the wireless access device for supporting the first working frequency range and the second working frequency range；
I.e. terminal finds the wireless access device for supporting double work frequency range；The first working frequency range herein can be 2.4GHZ,
Second working frequency range can be 5.8GHZ；Otherwise also the first working frequency range can be set to 5.8GHZ, the second work
Frequency range is set to 2.4GHZ；And it should be appreciated that the concrete value of the first working frequency range and the second working frequency range
Above two mode being not limited to, when there are other working frequency range, other work also can be flexibly set to
Frequency range value.
Step 402：Terminal accesses first working frequency range to wireless access device request, and itself is supported
Working frequency range ability information is sent to wireless access device, so that wireless access device carries out load management；
Step 403：Terminal receives wireless access device according to the current loading condition of its first working frequency range and end
The response message that the working frequency range ability information at end is sent to oneself；
Step 404：Terminal carries out the subsequent treatment of access process according to the response message.
In above-mentioned steps 401, terminal finds the wireless access for supporting the first working frequency range and the second working frequency range
The mode of device also has following two：
Mode one：It is passive to find
This mode increases for identifying in the scanning for beacon message (Beacon) that wireless access device sends
Whether the ability label of first working frequency range and second working frequency range is supported, terminal is from the scanning for beacon message
When extracting the ability label, you can know that the wireless access device supports the first working frequency range and the second work
Two frequency ranges of frequency range.The process is shown in Figure 5, and wireless access device sends bag by way of broadcast
Scanning for beacon message (Beacon) containing ability label, terminal receive the scanning letter of wireless access device transmission
After mark message, the ability label in scanning for beacon message is extracted, and judges that this wirelessly connects according to the ability label
Enter device and support the first working frequency range and the second working frequency range；
Mode two：It is actively discovered
Increase in the probe response message (Probe Response) that this mode is sent in wireless access device
For identifying whether to support that the ability label of the first working frequency range and the second working frequency range, terminal are rung from the detection
When the ability label is extracted in answering message, you can know the wireless access device support first working frequency range and
Second frequency range of working frequency range two；The process is shown in Figure 6,
Terminal sends probe requests thereby (Probe Request) to wireless access device；
Terminal receives the probe response message (Probe comprising ability label of wireless access device feedback
Response), the ability label in probe response message is extracted, and wireless access is judged according to the ability label
Whether device supports first working frequency range and the second working frequency range.
It should be appreciated that the present embodiment can utilize scanning for beacon message, original word of probe response message
Duan Tianjia ability labels, it is also possible to the extended field addition ability in scanning for beacon message, probe response message
Mark.
In above-mentioned steps 402, when terminal is to wireless access device request the first working frequency range of access, specifically may be used
By increasing working frequency range ability information in the access request that sends to wireless access device, in order to wirelessly connect
Enter after device receives the request message, therefrom extract working frequency range ability information, and then recognize the end
End is to support a working frequency range, or while supports the first working frequency range and the second working frequency range.
In above-mentioned steps 403, loading condition of the response message received by terminal according to wireless access device
It is divided into instruction response message, allows to access response message and refuse to access to ring with itself working frequency range ability information
Answer message；For different response messages, above-mentioned steps 404 are carried out after access process according to response message
Continuous process includes：
When the instruction response for indicating the second working frequency range of access that response message is wireless access device feedback
During message, show that wireless access device does not currently allow to access new terminal in the first working frequency range, but second
Working frequency range can access new terminal, and the terminal also supports the second working frequency range, and terminal is to wireless access device
Request accesses the second working frequency range；
When the permission that response message is wireless access device feedback accesses response message, show that wireless access is filled
Putting currently allows to access new terminal in the first working frequency range, and terminal accesses the first working frequency range；
When the refusal that response message is wireless access device feedback accesses response message, now show wirelessly to connect
Entering device does not currently allow to access new terminal in the first working frequency range, and does not allow to connect in the second working frequency range yet
Enter new terminal or the terminal does not support that the second working frequency range, terminal terminate the access process to wireless access device；
Access request can be initiated to other wireless access devices.
In the present embodiment, wireless access device supports the first working frequency range and the second working frequency range, wireless access
The load management method of device side is shown in Figure 7, including：
Step 701：Wireless access device obtains terminal institute when terminal accesses the first working frequency range to its request
The working frequency range ability information of support；
Step 702：Wireless access device is according to the current loading condition of its own the first working frequency range and terminal
Working frequency range ability information sends response message to terminal, with the access of control terminal.
In above-mentioned steps 701, wireless access device obtains working frequency range ability information to be included：
The access request that receiving terminal sends, the access request are association request (association
) or reassociation requests (Reassociation Request) Request；Terminal is included in the access request
Working frequency range ability information；
Working frequency range ability information is extracted from the access request for receiving and then judges that the terminal is to support one
Working frequency range still supports double work frequency range.
It should be appreciated that the present embodiment can utilize original field addition of association request, reassociation requests
Ability label, it is also possible to the extended field addition ability label in association request, reassociation requests.
In above-mentioned steps 702, wireless access device is according to the current loading condition of the first working frequency range and work
Frequency range ability information is shown in Figure 8 to the process that terminal sends response message, including：
Step 801：Judge whether the first working frequency range present load allows to access new terminal, in this way, go to
Step 802；Otherwise, go to step 803；
Step 802：Sending to terminal allows to access response message.
Step 803：Judge whether terminal supports the second work according to the working frequency range ability information in access request
Frequency range, such as supports, goes to step 804；Otherwise, go to step 806；
Step 804：Judge whether the second working frequency range present load of wireless access device allows to access new end
End, such as allows, goes to step 805；Otherwise, go to step 806；
Step 805：Send for indicating to access the instruction response message of the second working frequency range to terminal.
Step 806：Refusal is sent to terminal and accesses response message.
In the present embodiment, after the present load of the first working frequency range of above-mentioned judgement does not allow to access new terminal,
Before judging whether terminal supports the second working frequency range, following judge process can be first carried out：
With the presence or absence of support in the operational terminal of the first working frequency range that wireless access device judgement has currently been accessed
The target terminal (namely support two-band) of the second working frequency range, and the second working frequency range present load whether permit
Perhaps new terminal is accessed, in this way, release at least one is selected from target terminal, and is indicated the target being released
Terminal accesses the second frequency range again, and then sending to terminal allows to access response message；It is such as no, then judge end
Whether second working frequency range is supported in end.
In the present embodiment, when judging that terminal does not support the second working frequency range in above-mentioned steps 804, except
Refusal is sent to terminal to access outside response message, can also be in the following ways：
With the presence or absence of support in the operational terminal of the first working frequency range that wireless access device judgement has currently been accessed
The target terminal (namely support two-band) of the second working frequency range, and the second working frequency range present load whether permit
Perhaps new terminal is accessed, in this way, release at least one is selected from target terminal, and is indicated the target being released
Terminal accesses the second frequency range again, and then sending to terminal allows to access response message；It is such as no, then to terminal
Send refusal and access response message.
By said process, wireless access device can be directly obtained the work of terminal when terminal request is accessed
Make frequency range ability information, and then can be based on the work of itself current loading condition of the first working frequency range and terminal
Frequency range ability information decides whether to access the terminal, so as to realize the reasonable management to loading.
Embodiment two：
Shown in Figure 9, the communication system that the present embodiment is provided includes wireless access device and terminal；Nothing
Line access device supports the first working frequency range and the second working frequency range；Terminal accesses nothing by wireless access device
Line LAN.
Shown in Figure 10, the present embodiment wireless access device includes：
Information extraction modules 1, for when terminal accesses the first working frequency range to wireless access device request, obtaining
Take the working frequency range ability information supported by terminal；
Access processing module 2, for the current loading condition of the first working frequency range according to wireless access device and
Working frequency range ability information sends response message, the access of control terminal to terminal.
Information extraction modules 1 include information receiving submodule 11 and information retrieval submodule 12；
Information receiving submodule 11 is used for the access request that receiving terminal sends, and terminal institute is included in access request
The working frequency range ability information of support；The access request is association request (association Request)
Or reassociation requests (Reassociation Request)；Working frequency range comprising terminal in the access request
Ability information；
Information retrieval submodule 12 is for the extraction working frequency range ability information from access request.
Accessing processing module 2 includes the first process submodule 21, ability judging submodule 22, second processing
Module 23；
First process submodule 21 is used to judge whether the first working frequency range present load of wireless access device is permitted
Perhaps new terminal is accessed, in this way, sending to terminal allows to access response message, and otherwise notification capabilities judge submodule
Block 22；
Ability judging submodule 22 for according to first process submodule 21 notice, according to the work of terminal
Frequency range ability information judges whether terminal supports the second working frequency range, such as supports, notifies second processing submodule；
Second processing submodule 23 judges wireless access device for the notice according to ability judging submodule
Whether the second working frequency range present load allows to access new terminal, such as allows, and sends for indicating to connect to terminal
Enter the instruction response message of the second working frequency range.
In the present embodiment, access processing module and may also include the 3rd process submodule 24, for processing first
After submodule 21 judges that the first working frequency range present load does not allow to access new terminal, ability judging submodule
Before 22 judge whether terminal supports the second working frequency range；Or judge that terminal is not propped up in ability judging submodule 22
When holding the second working frequency range, in judging the operational terminal that wireless access device has currently accessed the first working frequency range
With the presence or absence of target terminal (namely support two-band), and the second work frequency of supporting the second working frequency range
Whether section present load allows to access new terminal, in this way, release at least one is selected from target terminal, and
The target terminal that instruction is released accesses the second frequency range again (specifically can be by sending to the target terminal
Disassociation/Deauthentication (goes to associate/go authentication), and increases " because load balancing is former
Because of release " indication information element), then sending to terminal allows to access response message.
Shown in Figure 11, the terminal that the present embodiment is provided includes：
Discovery module 3, for finding to support the wireless access device of the first working frequency range and the second working frequency range；
Namely terminal finds to support the wireless access device of double work frequency range；The first working frequency range herein can be
2.4GHZ, the second working frequency range can be 5.8GHZ；First working frequency range can also be 5.8GHZ, the second work
Make frequency range for 2.4GHZ；
Access request module 4, for accessing the first working frequency range to wireless access device request, and by itself institute
The working frequency range ability information of support is sent to wireless access device, so that wireless access device carries out load pipe
Reason；
Receiver module 5, for receiving wireless access device according to the current loading condition of the first working frequency range and work
Make the response message that frequency range ability information is sent to terminal；
Processing module 6, for the subsequent treatment of access process is carried out according to response message.
Discovery module 3 in the present embodiment includes being actively discovered submodule 31 or passive discovery submodule 32；
It is passive to find that submodule 31 is used to receive the scanning for beacon message (Beacon) of wireless access device transmission,
Whether scanning for beacon message package supports the ability of the first working frequency range and the second working frequency range containing wireless access device
Mark, extracts the ability label in scanning for beacon message, and judges wireless access device according to the ability label
Whether first working frequency range and second working frequency range are supported；
Submodule 32 is actively discovered for probe requests thereby being sent to wireless access device and receiving wireless access device
Whether the probe response message of feedback, the probe response message support first work containing wireless access device
Make the ability label of frequency range and the second working frequency range, extract the ability label in probe response message, and according to
The ability label judges whether wireless access device supports first working frequency range and the second working frequency range.Eventually
End is when extracting the ability label from the scanning for beacon message, you can know that the wireless access device supports the
Two frequency ranges of one working frequency range and the second working frequency range.
Processing module 6 in the present embodiment includes：
First processes submodule 61, for wireless access device transmission when response message is wireless access device
Feedback for indicating to access during the instruction response message of the second working frequency range, show wireless access device the
One working frequency range does not currently allow to access new terminal, but can access new terminal, and the end in the second working frequency range
The second working frequency range is also supported at end, accesses the second working frequency range to wireless access device request；
Second processing submodule 62, for accessing when the permission that response message is the wireless access device feedback
During response message, show that wireless access device currently allows to access new terminal in the first working frequency range, access institute
State the first working frequency range；
3rd processes submodule 63, for accessing response when the refusal that response message is wireless access device feedback
During message, now show wireless access device the first working frequency range currently do not allow access new terminal, and
Second working frequency range does not allow to access new terminal or the terminal yet does not support the second working frequency range, terminates to wireless
The access process of access device.Now terminal can initiate access request to other wireless access devices.
Embodiment three：
In order to be better understood from the present invention, below with a specific application scenarios as example, the present invention is done
Further illustrate.
This example makes an amendment to the 11st part of 802.11 agreement to be increased for identifying the finger for supporting double work frequency range
Show information：1)Beacon、Probe Response、association Request、Reassociation
Extended Capabilities cells (extended capability) modification in Request, in AP (wireless access
Device) dual band capability instruction is supported and between STA (client).As shown in Table 1 and Table 2：
Table 1
Table 2
| Extended Capabiliti(see 8.4.2.29) | 127 | 3 to 8 | Yes |
The 11st part table 8-54 of 802.11 agreement defines being specifically defined for ElementID (Information ID),
The ElementID values 127 of Extended Capabilities cells, length (length) value model
Enclose 3-8 bytes.It is reservation bit after 48 bits in (areas of capacity).Extended Capabilities
Field modifications are as shown in table 3：
Table 3
2.4GHz and 5.8GHz frequency range tenabilities are indicated with bit 49.If STA support 2.4GHz and
5.8GHz frequency range tenabilities, it is possible to obtain AP ability informations during AP is actively or passively scanned,
And itself is supported into dual band capability in association Request, Reassociation Request
Notify AP.AP can support dual band capability and AP loading conditions according to STA, it is determined that request accesses STA
Whether the band information of access, the STA for having accessed can move to other frequency range.
2) cell Status codes in association Request, Reassociation Request
(conditional code) is changed, and is increased conditional code value and is indicated " request accesses frequency range load balancing access failure ",
STA should initiate to ask in other frequency range.Status codes are that 0 expression is successfully accessed, and other reasons are to connect
Enter failure cause instruction, wherein 103-65535 be retention, the 11st part table 8-37 of 802.11 agreement
Status codes modifications are as shown in table 4, and value 103 represents " load balancing reason access failure ".
Table 4
3) Disassociation/Deauthentication (going to associate/go authentication) includes Reason
The value of codes (reason code), Reason codes more than or equal to 67 is retention.As shown in table 5：
The 11st part table 8-36 of 802.11 agreement increases Reason codes explanations, is represented " because negative with 67
Carry balanced reason release ", instruction user is accessed to other frequency range.Other frequency range is not supported when request accesses STA,
Request accesses frequency range overload, and when another frequency range can access new STA, AP indicates to support across frequency range
Online STA releases are current to be connected, and accesses in the request of other frequency range.
Table 5
The 11st part table 8-36 of 802.11 agreement increases Reason codes explanations, represented with 67 " because
Discharge for load balancing reason ", instruction user is accessed to other frequency range.Do not support in addition when request accesses STA
Frequency range, request access frequency range overload, when another frequency range can access new STA, AP indicate support across
The online STA releases of frequency range are current to be connected, and accesses in the request of other frequency range.
Based on above-mentioned setting, illustrated with several access scenes below.
Scene one：
Configuration double frequency AP, arranges 2.4GHz frequency ranges 3 STA of maximum access, and 5 setting 5.8GHz frequency ranges are maximum
Access 3 STA；
STA1, STA2, the STA3 for supporting one-segment is accessed in 2.4GHz frequency ranges.Access in 5.8GHz frequency ranges
STA4、STA5；
Select to support that 2.4GHz one-segments STA6 are accessed, AP judges that current frequency range does not allow STA6 to access, STA6
Do not support that two-band, refusal STA6 are accessed yet.
Scene two：
Configuration double frequency AP, arranges 2.4GHz frequency ranges 3 STA of maximum access, and 5 setting 5.8GHz frequency ranges are maximum
Access 3 STA；
STA1, STA2, the STA3 for supporting one-segment is accessed in 2.4GHz frequency ranges.Access in 5.8GHz frequency ranges
STA4、STA5；
Select to support the STA7 of two-band, access in the request of 2.4GHz frequency ranges, AP judges that current frequency range does not permit
Perhaps STA7 is accessed, and STA7 supports two-band, and 5.8GHZ frequency ranges can access STA7, AP refusal STA7
Current frequency range is accessed, disarmed state code is 103 (" load balancing reason access failures ".), indicate that STA7 is arrived
5.8GHz frequency ranges are accessed.
STA7 initiates access request in 5.8GHz frequency ranges, and AP judges to allow to access, and STA7 is linked into 5.8GHz
Frequency range.
Scene three：
Configuration double frequency AP, arranges 2.4GHz frequency ranges 3 STA of maximum access, and 5 setting 5.8GHz frequency ranges are maximum
Access 3 STA；
STA1, STA2, the STA3 for supporting one-segment is accessed in 2.4GHz frequency ranges, is accessed in 5.8GHz frequency ranges
STA4、STA5；
Release STA1, selects to support that the STA8 of two-band is linked into 2.4GHz frequency ranges, AP judges to allow to access,
STA8 is linked into AP 2.4GHz frequency ranges, prevents 2.4GHZ frequency ranges from accessing new STA.
Scene four：
On the basis of above-mentioned scene three, STA4 is discharged, so that 5.8GHz frequency ranges can access new STA；
Select to support that 2.4GHz one-segments STA1 access 2.4GHz frequency ranges；
The 2.4GHz frequency ranges that AP judge can not access new STA, and 5.8GHz frequency ranges can access new STA, judge
Online STA8 supports two-band, selects release STA8, and reason code is 67, indicates STA8 in 5.8GHz
Frequency range is accessed again；
STA8 discharges link, accesses in 5.8GHZ frequency ranges；
AP indicates that STA1 is accessed, and STA is linked into 2.4GHz frequency ranges.
It can be seen that, the present invention by increasing the interaction of frequency range ability information between STA and AP, do not increase hardware into
On the basis of this, AP is allow to be carried out between different frequency range according to the capabilities might and own resource information of STA
Load balancing.
Above content is with reference to specific embodiment further description made for the present invention, it is impossible to recognized
Being embodied as of the fixed present invention is confined to these explanations.For the ordinary skill of the technical field of the invention
For personnel, without departing from the inventive concept of the premise, some simple deduction or replace can also be made,
Protection scope of the present invention should be all considered as belonging to.
Claims (16)
1. a kind of wireless access device load management method, it is characterised in that include：
Wireless access device obtains the terminal and is supported when terminal accesses the first working frequency range to its request
Working frequency range ability information；The wireless access device supports the first working frequency range and the second working frequency range；
The wireless access device is according to the current loading condition of first working frequency range and the working frequency range
Ability information sends response message to the terminal, controls the access of the terminal.
2. wireless access device load management method as claimed in claim 1, it is characterised in that described
Wireless access device obtains the working frequency range ability information to be included：
The access request that the terminal sends is received, the work supported comprising the terminal in the access request
Make frequency range ability information；
The working frequency range ability information is extracted from the access request.
3. wireless access device load management method as claimed in claim 1 or 2, it is characterised in that
The wireless access device is according to the current loading condition of first working frequency range and the working frequency range ability
Information sends response message to the terminal to be included：
Judge whether first working frequency range present load allows to access new terminal, in this way, to the terminal
Sending allows to access response message；
Otherwise, judge whether the terminal supports the second working frequency range according to the working frequency range ability information,
As supported, judge whether second working frequency range present load allows to access new terminal, such as allow, to institute
State terminal to send for indicating to access the instruction response message of the second working frequency range.
4. wireless access device load management method as claimed in claim 3, it is characterised in that sentence
After disconnected first working frequency range present load does not allow to access new terminal, judging whether the terminal props up
Before holding the second working frequency range；Or when judging that the terminal does not support second working frequency range, also include：
Whether there is in judging the operational terminal for currently accessed first working frequency range and support the second work frequency
Whether the target terminal and second working frequency range present load of section allows to access new terminal, in this way, from
Release at least one is selected in the target terminal, and indicates that the target terminal being released accesses the second frequency again
Section, then sending to the terminal allows to access response message.
5. wireless access device load management method as claimed in claim 3, it is characterised in that sentence
When the terminal of breaking does not support the second working frequency range, or judge that the second working frequency range present load is not allowed
When accessing new terminal, refusal is sent to the terminal and access response message.
6. a kind of terminal access method, it is characterised in that include：
Terminal finds the wireless access device for supporting the first working frequency range and the second working frequency range；
The terminal accesses first working frequency range to wireless access device request, and itself is supported
Working frequency range ability information is sent to the wireless access device；
The terminal receive the wireless access device according to the current loading condition of first working frequency range and
The response message that the working frequency range ability information is sent to oneself；
The terminal carries out the subsequent treatment of access process according to the response message.
7. terminal access method as claimed in claim 6, it is characterised in that terminal finds to support first
The wireless access device of working frequency range and the second working frequency range includes：
The terminal receives the scanning for beacon message that the wireless access device sends, the scanning for beacon message
Whether the ability mark of first working frequency range and second working frequency range is supported comprising the wireless access device
Know；The terminal extracts the ability label in the scanning for beacon message, and judges institute according to the ability label
State whether wireless access device supports first working frequency range and the second working frequency range；
Or,
The terminal sends probe requests thereby to the wireless access device and receives the wireless access device feedback
Probe response message, whether the probe response message support described first containing the wireless access device
The ability label of working frequency range and the second working frequency range；The terminal extracts the energy in the probe response message
Power is identified, and judges whether the wireless access device supports first working frequency range according to the ability label
With the second working frequency range.
8. terminal access method as claimed in claims 6 or 7, it is characterised in that the terminal according to
The response message carries out the subsequent treatment of access process to be included：
When the response message is wireless access device feedback for indicating to access the second working frequency range
When indicating response message, the terminal accesses the second working frequency range to wireless access device request；
When the permission that the response message is the wireless access device feedback accesses response message, the end
Terminate into first working frequency range；
When the refusal that the response message is the wireless access device feedback accesses response message, the end
Terminate the access process to the wireless access device in end.
9. a kind of wireless access device, which supports first working frequency range and the second working frequency range, its feature
It is, including：
Information extraction modules, for terminal to the wireless access device request access the first working frequency range when,
Obtain the working frequency range ability information supported by the terminal；
Processing module is accessed, for according to the current loading condition of first working frequency range and work frequency
Section ability information sends response message to the terminal, controls the access of the terminal.
10. wireless access device as claimed in claim 9, it is characterised in that described information extracts mould
Block includes information receiving submodule and information retrieval submodule；
Described information receiving submodule is used to receive the access request that the terminal sends, in the access request
Comprising the working frequency range ability information supported by the terminal；
Described information extracting sub-module is for extracting the working frequency range ability information from the access request.
11. wireless access devices as described in claim 9 or 10, it is characterised in that at the access
Reason module includes the first process submodule, ability judging submodule, second processing submodule；
The first process submodule is used to judge whether first working frequency range present load allows to access newly
Terminal, in this way, sending to the terminal allows to access response message, otherwise notifies that the ability judges submodule
Block；
The ability judging submodule for according to described first process submodule notice, according to the work
Frequency range ability information judges whether the terminal supports the second working frequency range, such as supports, notifies at described second
Reason submodule；
The second processing submodule judges described second for the notice according to the ability judging submodule
Whether working frequency range present load allows to access new terminal, such as allows, and sends for indicating to connect to the terminal
Enter the instruction response message of the second working frequency range.
12. wireless access devices as claimed in claim 11, it is characterised in that the access processes mould
Block also processes submodule including the 3rd, for judging first working frequency range in the described first process submodule
After present load does not allow to access new terminal, the ability judging submodule judges whether the terminal is supported
Before second working frequency range；Or judge that the terminal does not support second work in the ability judging submodule
When making frequency range, whether there is in judging the operational terminal for currently accessed first working frequency range and support second
Whether the target terminal of working frequency range and second working frequency range present load allow to access new terminal, such as
It is that release at least one is selected from the target terminal, and indicates that the target terminal being released is accessed again
Second frequency range, then sending to the terminal allows to access response message.
13. a kind of terminals, it is characterised in that include：
Discovery module, for finding to support the wireless access device of the first working frequency range and the second working frequency range；
Access request module, for accessing the first working frequency range to wireless access device request, and will be from
The working frequency range ability information supported by body is sent to the wireless access device；
Receiver module, for receiving the wireless access device according to the current load of first working frequency range
The response message that situation and the working frequency range ability information are sent to the terminal；
Processing module, for the subsequent treatment of access process is carried out according to the response message.
14. terminals as claimed in claim 13, it is characterised in that the discovery module includes actively sending out
Existing submodule passively finds submodule；
The passive discovery submodule is used to receive the scanning for beacon message that the wireless access device sends, institute
State whether scanning for beacon message package supports first working frequency range and the second work containing the wireless access device
The ability label of frequency range, extracts the ability label in the scanning for beacon message, and is sentenced according to the ability label
Whether the wireless access device that breaks supports first working frequency range and the second working frequency range；
It is described to be actively discovered submodule for sending probe requests thereby to the wireless access device and receiving the nothing
The probe response message of line access device feedback, the probe response message containing the wireless access device is
The no ability label for supporting first working frequency range and the second working frequency range, extracts the probe response message
In ability label, and judge whether the wireless access device supports first work according to the ability label
Make frequency range and the second working frequency range.
15. terminals as described in claim 13 or 14, it is characterised in that the processing module includes：
First processes submodule, for being wireless access device feedback for referring to when the response message
When showing the instruction response message of the second working frequency range of access, the second work is accessed to wireless access device request
Make frequency range；
Second processing submodule, for when the response message be wireless access device feedback allow connect
When entering response message, first working frequency range is accessed；
3rd processes submodule, for connecing when the refusal that the response message is the wireless access device feedback
When entering response message, terminate the access process to the wireless access device.
16. a kind of communication systems, it is characterised in that include the nothing as described in any one of claim 9-12
Line access device and the terminal as described in any one of claim 13-15；The terminal is wirelessly connect by described
Enter device and access WLAN.
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|---|---|---|---|
| CN201510590583.2A CN106550425A (en) | 2015-09-16 | 2015-09-16 | Wireless access device and its load management method, terminal and cut-in method, system |
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| CN201510590583.2A CN106550425A (en) | 2015-09-16 | 2015-09-16 | Wireless access device and its load management method, terminal and cut-in method, system |
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| WO2019232758A1 (en) * | 2018-06-07 | 2019-12-12 | 华为技术有限公司 | Method and terminal for wi-fi connection |
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| CN110710269A (en) * | 2017-07-31 | 2020-01-17 | 华为技术有限公司 | Communication method, communication device and system |
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| CN110177384A (en) * | 2019-07-15 | 2019-08-27 | 迈普通信技术股份有限公司 | Cut-in method, device, wireless access point and readable storage medium storing program for executing |
| CN113453306A (en) * | 2020-03-25 | 2021-09-28 | 华为技术有限公司 | Wireless network access method and related equipment |
| WO2021190230A1 (en) * | 2020-03-25 | 2021-09-30 | 华为技术有限公司 | Method for accessing wireless network and related device |
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