CN110392397A - A kind of wireless access point AP method for switching between and system - Google Patents
A kind of wireless access point AP method for switching between and system Download PDFInfo
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- CN110392397A CN110392397A CN201910697273.9A CN201910697273A CN110392397A CN 110392397 A CN110392397 A CN 110392397A CN 201910697273 A CN201910697273 A CN 201910697273A CN 110392397 A CN110392397 A CN 110392397A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
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Abstract
The invention discloses a kind of wireless access point AP method for switching between and systems, are related to field of communication technology, method includes the following steps: Radio Access Controller AC configures specified data type to each AP；Whether the lower traffic data type for hanging terminal of judgement is consistent with the specified data type of target AP；If inconsistent, the signal strength between each adjacent AP and lower extension terminal is compared with preset signal strength threshold；Each adjacent AP that signal strength is greater than preset signal strength threshold is obtained, signal is denoted as and permits adjacent AP, permits the specified data type of adjacent AP to be compared with the lower traffic data type for hanging terminal each signal；If either signal permits that the specified data type of adjacent AP is consistent with the lower extension traffic data type of terminal, lower extension terminal permits adjacent AP connection with corresponding signal.The present invention distributes specified data type to each AP in advance, and for different data types, rationally the load between equilibrium wireless access point AP, promotes user experience.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of wireless access point AP method for switching between and system.
Background technique
With the fast development of information technology and intelligent terminal, WIFI application has become more in people's daily life
Come more universal, has been widely used for the fields such as home network, enterprise network, public network, smart home, Internet of Things, become
Indispensable a part in people's life and work；In WiFi technology, a subscriber terminal equipment, such as a mobile phone,
Usually network service is obtained by being connected to a wireless access point AP.But since the transmission power of single AP is low and signal
Frequency range is high, and coverage area is little, and rear signal through walls is easily decayed；In order to overcome these disadvantages, in building, dispose multiple
SSID name and the identical AP of authenticated encryption mode construct roaming network, in this way, to be automatically associated to signal preferable for terminal
On AP, better network is enjoyed；
But in traditional WIFI network, the equipment hung under the same access point is more, the bandwidth money that each equipment is assigned to
Source is fewer, and when traffic needs are more than available bandwidth, regardless of the type of data, the throughput of data flow subtracts without exception
It is few, seriously affect the normal use of user.
Therefore, in order to guarantee satisfied user experience, it is badly in need of a kind of technical solution for solving above-mentioned technical problem.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide one kind for terminal in wireless access point
AP method for switching between and system distribute specified data type to each AP in advance, rationally balanced wireless for different data types
Load between access point AP promotes user experience.
To achieve the above objectives, the technical solution adopted by the present invention is that:
The present invention discloses one kind for terminal in wireless access point AP method for switching between, the described method comprises the following steps:
Radio Access Controller AC configures specified data type to each AP；
Target AP traversal is lower to hang terminal, judge the lower traffic data type for hanging terminal whether the specified number with the target AP
It is consistent according to type；
If inconsistent, the lower each adjacent AP for hanging terminal is obtained, and by each adjacent AP and the lower extension terminal
Between signal strength be compared with preset signal strength threshold；
Each adjacent AP that the signal strength is greater than preset signal strength threshold is obtained, it is adjacent to be denoted as signal license
AP, and traverse each signal and permit adjacent AP, each signal is permitted into the specified data type of adjacent AP and the lower extension
The traffic data type of terminal is compared；
If any signal permits the specified data type and the lower traffic data type one for hanging terminal of adjacent AP
It causes, then the lower extension terminal and connection breaking in the target AP, and then permits adjacent AP connection with the corresponding signal, it is on the contrary
Then the lower extension terminal and the target AP maintain to connect.
Based on the above technical solution, under the judgement hang terminal traffic data type whether with the target AP
Preset specified data type it is consistent, comprising the following steps:
The target AP parses the message in the lower business datum for hanging terminal, obtains the protocol class of the message
Type obtains the traffic data type according to the protocol type；
The AC compares the lower traffic data type for hanging terminal and the specified data type of the target AP.
Based on the above technical solution, the signal strength by each adjacent AP between the lower extension terminal
When being compared with preset signal strength threshold, comprising the following steps:
The AC is according to the lower identity information for hanging terminal, to each adjacent AP strength of transmitted signals detection instruction；
Each adjacent AP responds the signal strength detection instruction, obtains and the lower signal strength for hanging terminal；
The AC by each adjacent AP and it is described it is lower hang terminal between signal strength and the signal strength threshold into
Row compares.
Based on the above technical solution, if the lower extension terminal supports 802.11KV agreement, lower the extensions terminal and
Connection breaking in the target AP, and then when permitting adjacent AP connection with the corresponding signal, specifically includes the following steps:
The lower extension terminal and connection breaking in the target AP；
The signal permits adjacent AP to send 802.11KV switching request to the lower extension terminal；
The lower extension terminal responds the 802.11KV switching request, permits adjacent AP to connect with the signal.
Based on the above technical solution, connection breaking in the lower extension terminal and the target AP, so with it is corresponding
When the signal permits adjacent AP connection, specifically includes the following steps:
The AC controls the target AP and connect with the lower extension terminal aborts, and controls the target AP in preset time
The interior refusal lower connection request for hanging terminal；
The lower extension terminal permits adjacent AP to connect with the signal.
Based on the above technical solution, multiple signals permit specified data type and the institute of adjacent AP if it exists
It is consistent to state the lower traffic data type for hanging terminal, the described method comprises the following steps:
Compare each signal and permits signal strength of the adjacent AP respectively between the lower extension terminal；
The lower extension terminal and connection breaking in the target AP, so it is adjacent with the strongest signal license of signal strength
AP connection.
Invention additionally discloses switching systems between a kind of wireless access point AP, are used to wireless network, the wireless network
Network includes Radio Access Controller AC and at least two wireless access point AP, the system comprises:
The business configuration module being set in the AC is used for each AP configuration specified data type；
The business judgment module being set in the AC is used to obtain the target AP from business analysis module corresponding
Each lower business datum data type for hanging terminal, and be compared with the specified data type of the target AP；
Be set to intensity in the AC and obtain module, be used to obtain from signal detection module the adjacent AP with it is described
Under hang signal strength between standby；
The enquiry module being set in the AC, is used to obtain and the lower signal strength hung between terminal is big
It in each adjacent AP of preset signal strength threshold, is denoted as signal and permits adjacent AP, and obtain each signal license phase
The specified data type of adjacent AP；
The switching module being set in the AC, if being used for the specified data type that any signal permits adjacent AP
It is consistent with the lower extension traffic data type of terminal, then it controls the target AP, the lower extension terminal and the signal and is permitted
It can adjacent AP, the completion lower middle connection breaking for hanging terminal and the target AP and the lower extension terminal and signal license
The connection of adjacent AP, it is on the contrary then control the target AP and lower the extensions terminal maintains connection；
The business diagnosis module being set in the AP is used for according to each lower business datum acquisition pair for hanging terminal
The traffic data type answered；
The signal detection module being set in the AP is used to detect the AP and the lower signal hung between terminal
Intensity.
Based on the above technical solution, the business diagnosis module is also used to parse the corresponding lower extension of the AP
Message in the business datum of terminal, obtains the protocol type of the message, obtains the industry according to the protocol type
Business data type.
Based on the above technical solution, the intensity obtains module and is also used to according to the lower identity letter for hanging terminal
Breath, to the signal detection module strength of transmitted signals detection instruction of the lower each adjacent AP for hanging terminal；
The signal detection module to each adjacent AP responds the signal strength detection instruction, obtains described adjacent
AP and the lower signal strength for hanging terminal, and feed back to after the intensity obtains module, the intensity obtains module and is also used to
Signal strength between each adjacent AP and the lower extension terminal is compared with the signal strength threshold.
Based on the above technical solution, if the lower extension terminal supports 802.11KV agreement, the switching module is also
For:
The target AP is controlled to connect with the lower extension terminal aborts；
Controlling the signal permits adjacent AP to send 802.11KV switching request to the lower extension terminal；
The 802.11KV switching request is responded to the lower extension terminal, the lower extension terminal is controlled and the signal is permitted
Adjacent AP connection.
Based on the above technical solution, the switching module is also used to control the target AP and the lower extension terminal
Middle connection breaking, and then control the target AP and refuse the lower connection request for hanging terminal within a preset time；
The switching module is also used to control the signal and adjacent AP is permitted to connect with the lower extension terminal.
Based on the above technical solution, multiple signals permit specified data type and the institute of adjacent AP if it exists
State the lower traffic data type for hanging terminal it is consistent when, the switching module is also used to each signal of comparison and permits adjacent AP difference
With the lower signal strength hung between terminal；
The switching module is also used to control the target AP, the lower extension terminal and the signal and permits adjacent AP,
Complete the lower middle connection breaking for hanging terminal and the target AP and the lower extension terminal and the strongest letter of signal strength
The connection of number adjacent AP of license.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention distributes specified data type to each AP in advance, for different data types, to wireless access point AP it
Between load carry out classifying rationally, promoted user experience.
Detailed description of the invention
Fig. 1 is the step flow chart of wireless access point AP method for switching between in the embodiment of the present invention one；
Fig. 2 is that the step of business datum of wireless access point AP method for switching between in the embodiment of the present invention one differentiates process flows
Cheng Tu；
Fig. 3 is the business datum analysis flow chart diagram of wireless access point AP method for switching between in the embodiment of the present invention one；
The step of Fig. 4 is the signal strength detection process of wireless access point AP method for switching between in the embodiment of the present invention one is flowed
Cheng Tu；
Fig. 5 is that the KV of wireless access point AP method for switching between in the embodiment of the present invention one roams the step flow chart of process；
Fig. 6 is the step process of the forced roaming process of wireless access point AP method for switching between in the embodiment of the present invention one
Figure；
Fig. 7 is the structural block diagram of switching system between wireless access point AP in the embodiment of the present invention two；
In figure: 1, business configuration module；2, business judgment module；3, intensity obtains module；4, enquiry module；5, switch mould
Block；6, business diagnosis module；7, signal detection module.
Specific embodiment
Term is explained:
AP:Wireless Access Point, i.e. wireless access points；
AC:Wireless Access Point Controller, i.e. wireless controller；
RSSI:Received Signal Strength Indication, i.e. received signal intensity instruction；
WIFI: i.e. Wi-Fi, it is created in the wireless local area network technology of 802.11 standard of IEEE；
RRM:Radio Resource Management, wireless resource management；
OSI:Open System Interconnection, open system interconnection；
SIP:Session Initiation Protocol, session initiation protocol are by IETF (Internet
Engineering Task Force, internet engineering task group) formulate multimedia communication protocol；
IGMP:Internet Group Management Protocol, Internet igmpinternet is known as IGMP association
View, is a multicast protocol in Internet Protocol family；
HTTP: hypertext transfer protocol.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
The embodiment of the present invention provides a kind of wireless access point AP method for switching between and system, distributes specified number to each AP in advance
According to type, for different data types, classifying rationally is carried out to the load between wireless access point AP, promotes user experience.
To reach above-mentioned technical effect, the general thought of the application is as follows:
A kind of wireless access point AP method for switching between, method includes the following steps:
The first step, Radio Access Controller AC configure specified data type to each AP；
Second step, target AP traversal are lower to hang terminal, judge the lower traffic data type for hanging terminal whether with the target AP
Specified data type it is consistent；
If third step, inconsistent, obtain each lower adjacent AP for hanging terminal, and will each adjacent AP with it is described under
The signal strength hung between terminal is compared with preset signal strength threshold；
4th step obtains each adjacent AP that the signal strength is greater than preset signal strength threshold, is denoted as signal
Permit adjacent AP, and traverse each signal and permit adjacent AP, by each signal permit the specified data type of adjacent AP with
The lower traffic data type for hanging terminal is compared；
If the 5th step, any signal permit the specified data type and the lower business datum for hanging terminal of adjacent AP
Type is consistent, then the lower extension terminal and connection breaking in the target AP, and then permits adjacent AP to connect with the corresponding signal
It connects, the on the contrary then described lower extension terminal and the target AP maintain to connect.
It should be noted that wireless access point AP method for switching between as mentioned in the embodiments of the present invention mainly applies to wirelessly
Network, the wireless network include a Radio Access Controller AC and at least two wireless access point APs.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Embodiment 1
Referring to shown in Fig. 1 to 6, the embodiment of the present invention 1 provides a kind of wireless access point AP method for switching between, and this method includes
Following steps:
S1, Radio Access Controller AC configure specified data type to each AP；
S2, target AP traversal are lower to hang terminal, judge the lower traffic data type for hanging terminal whether the specified number with target AP
It is consistent according to type；
If S3, inconsistent, each lower adjacent AP for hanging terminal is obtained, and by each adjacent AP and the lower signal hung between terminal
Intensity is compared with preset signal strength threshold, conversely, then lower hang terminal and target AP maintenance connection；
S4, each adjacent AP that signal strength is greater than preset signal strength threshold is obtained, is denoted as signal and permits adjacent AP, if
There is no signals to permit adjacent AP, then lower terminal of hanging is connected with target AP maintenance；
S5, each signal of traversal permit adjacent AP, and each signal is permitted the specified data type of adjacent AP and lower extension terminal
Traffic data type is compared；
If S6, either signal permit that the specified data type of adjacent AP is consistent with the lower extension traffic data type of terminal,
Lower extension terminal and connection breaking in target AP, and then permit adjacent AP connection, on the contrary then lower extension terminal and target with corresponding signal
AP maintains connection.
It should be noted that wireless access point AP method for switching between as mentioned in the embodiments of the present invention mainly applies to wirelessly
Network, the wireless network include a Radio Access Controller AC and at least two wireless access point APs；
When specific operation, a signal strength threshold is preset, with the AP of the lower signal strength for hanging terminal above this threshold, is removed
It goes other than the AP currently being connect with the lower extension terminal, other AP can be considered the lower adjacent AP for hanging terminal；
Wherein, each wireless access point AP possesses identical SSID and identical certification setting, and there is overlapping covering
Region,
SSID is the abbreviation of Service Set Identifier, means that service set, SSID technology can be by one
A WLAN is divided into several sub-networks for needing different identity to verify, each sub-network requires independent identity and tests
Card only can just enter corresponding sub-network by the user of authentication, prevent unauthorized user from entering present networks；
Certification setting specifically can be the authenticated configurations such as connection password；
In addition, AP subnet refers to the network being made of at least two AP.
In the embodiment of the present invention, specified data type, this step are configured to each AP first with Radio Access Controller AC
In specified data type be mainly used for marking the data type of the wireless access point AP priority processing, it can be understood as by each nothing
The task of line access point AP is divided in advance, it should be noted that specified data type only carries out data type
Label, i.e., in various data types, the task which is undertaken is more likely to be responsible for the data type, and simultaneously
Non- other data types wireless access point AP can not be handled；
In turn, target AP can traverse the lower extension terminal of its current time connection, and judge each lower business datum for hanging terminal
Whether type is consistent with the specified data type of target AP；
The lower traffic data type for hanging terminal to be obtained, and after being differentiated, if the lower traffic data type for hanging terminal with
The specified data type of target AP is consistent, then lower terminal of hanging continues to connect with target AP, without processing；
Wherein, whether the lower traffic data type for hanging terminal of judgement is consistent with the preset specified data type of target AP,
The process specifically includes the following steps:
The lower message hung in the business datum of terminal of target AP parsing, obtains the protocol type of message, according to protocol type
Obtain traffic data type；
AC compares the specified data type of the lower traffic data type for hanging terminal and target AP；
If the lower traffic data type for hanging terminal and the specified data type of target AP are inconsistent, need further to obtain
The lower adjacent AP for hanging terminal, and each adjacent AP and the lower signal strength hung between terminal and preset signal strength threshold are carried out
Compare；
Each adjacent AP that signal strength is greater than preset signal strength threshold is obtained, signal is denoted as and permits adjacent AP, and time
It goes through each signal and permits adjacent AP, obtain the specified data type that each institute's signal permits adjacent AP, each signal is permitted adjacent AP's
Specified data type is compared with the lower traffic data type for hanging terminal；
If either signal permits that the specified data type of adjacent AP is consistent with the lower extension traffic data type of terminal, i.e. data
Type is consistent and signal strength also complies with the signal of requirement and adjacent AP is permitted to be more suitable for connect with lower the extensions terminal, then descends extension at this time
Terminal and connection breaking in target AP, and then permit adjacent AP connection with corresponding signal；
Conversely, either signal permits the specified data type of adjacent AP and the lower traffic data type for hanging terminal different
It causes, then lower terminal of hanging is connected with target AP maintenance.
The embodiment of the present invention distributes specified data type to each AP in advance, for different data types, to wireless access
Load between point AP carries out classifying rationally, promotes user experience.
Specifically, whether the another embodiment in the embodiment of the present invention, judge the lower traffic data type for hanging terminal
When consistent with the preset specified data type of target AP, specially business datum differentiates process, which specifically includes following
Step:
A1, target AP extract the lower service message for hanging terminal transmission；
A2, target AP parse service message using skb handling function, obtain the protocol type of service message；
A3, target AP identify the protocol type of service message, sentence the corresponding business datum of service message according to protocol type
Type；
Itself specified data type is compared with the lower type of service for hanging terminal by A4, target AP, judges whether consistent；
For example, after parsing obtains protocol type, SIP (Session Initiation Protocol, conversation initial association
View is the multimedia communication formulated by IETF (Internet Engineering Task Force, internet engineering task group)
Agreement) corresponding data type is voice data, IGMP (Internet Group Management Protocol,
Internet igmpinternet is a multicast protocol in Internet Protocol family) corresponding data type is video data,
A kind of corresponding data type of HTTP (hypertext transfer protocol, request-response protocol) is web data；
Wherein, skb handling function, that is, Linux protocol stack skb handling function；
In addition, hanging standby business datum analysis flow chart diagram under one kind as shown in figure 3, specifically giving.
Another embodiment in the embodiment of the present invention, by each adjacent AP and the lower signal strength hung between terminal and in advance
If signal strength threshold when being compared, specially signal strength detection process, as shown in figure 4, the process includes following step
It is rapid:
B1, AC are according to the lower identity information for hanging terminal, to each adjacent AP strength of transmitted signals detection instruction；
B2, each adjacent AP response signal intensity detection instruction, obtain and the lower signal strength for hanging terminal；
Signal strength between each adjacent AP and lower extension terminal is compared by B3, AC with signal strength threshold；
It should be noted that signal strength is specially RSSI value, the lower identity information for hanging terminal is with specifically can be MAC
Location.
It should be noted that signal strength threshold is between wireless access point AP and lower extension terminal according to wireless network
Communication performance set, it is logical between wireless access point AP and terminal when signal strength is more than signal strength threshold
Letter quality can satisfy the normal use demand of user.
Another embodiment in the embodiment of the present invention, if lower extension terminal support 802.11KV agreement, lower extensions terminal and
Connection breaking in target AP, so with corresponding signal permit adjacent AP connection when, specifically can be used KV roaming process, the KV roam
Process specifically includes the following steps:
C1, AC send disconnecting instruction to target AP；
C2, target AP respond disconnecting instruction, connect with lower extension terminal aborts；
C3, AC permit adjacent AP to send KV roaming instructions to signal；
C4, signal permit adjacent AP to respond KV roaming instructions, hang terminal downwards and send 802.11KV switching request；
C5, lower extension terminal respond 802.11KV switching request, permit adjacent AP to connect with signal.
It should be noted that 802.11 standard of IEEE to can be realized between the access point of different vendor and interchanger
Intercommunication altogether, but it can not allow the radio resource of wlan system access client；
This defect limits the ability that management organization effectively manages its network, therefore IEEE has set up a working group
A new standard, i.e. 802.11k wireless resource management (RRM) standard are worked out, which improves to wireless access point, client
The detection of operation and environmental data, to improve the operation and management efficiency of WLAN；
802.11k is conceived to two critical WLAN elements, i.e. access point (AP) and client, its object is to
Make one layer and two layers of osi protocol stack, i.e. the measurement data of physical layer and data link layer can be used for one layer.This means that
Upper one layer can make the decision in relation to wireless environment, and determine the measurement of progress required in that wireless environment.The standard
A key property being able to achieve is preferably progress portfolio distribution.802.11k is intended to mention WLAN access point and interchanger
For critical client feedback information, effect is to enhance the ability of 802.11 standard management radio resources；
802.11v being then conceived to wireless network management.Its task will be based on achievement acquired by 802.11k, 802.11v mark
Quasi- basic ideas are exactly that infrastructure is enable preferably to control wireless terminal device, and the control of wireless terminal device is related to multiple
Aspect, load-balancing function are important one therein, and influence an important factor for wireless network deployment is with transmitting.It is so-called negative
Equilibrium is carried, is to distribute wireless terminal device between them according to the loading condition of access point；
In the current situation, realize load balancing mainly pass through prevent terminal device be connected on the access point of overload or
Terminate the terminal device session having been coupled on access point to realize, 802.11v imagines by arriving terminal device guides
Access point with available bandwidth and resource, makes load balance become transparent to user.In existing wireless network mechanism, also
Which may be implemented by hand be that terminal equipment configuration SSID and safety certificate can inform that automatically terminal is set without mechanism
It is standby to be connected on what network, and 802.11v realizes the function that security terminal configuration is carried out from infrastructure, this will be big
The big deployment time reduced in catenet.
Another embodiment in the embodiment of the present invention, connection breaking in lower extension terminal and target AP, and then with it is corresponding
Signal permit adjacent AP connection when, forced roaming process specifically can be used, the forced roaming process specifically includes the following steps:
D1, AC send disconnecting instruction and refusal reconnection instruction to target AP；
D2, target AP respond disconnecting instruction and refusal reconnection instruction, connect with lower extension terminal aborts, and default
The lower connection request for hanging terminal of refusal in time；
D3, lower extension terminal permit adjacent AP to connect with signal.
Another embodiment in the embodiment of the present invention, multiple signals permit the specified data type of adjacent AP if it exists
Consistent with the lower extension traffic data type of terminal, this method is further comprising the steps of at this time:
Compare each signal and permits signal strength of the adjacent AP respectively between lower extension terminal；
Lower extension terminal and connection breaking in target AP, and then permit adjacent AP to connect with the strongest signal of signal strength；
It should be noted that this hangs the mode that terminal permits adjacent AP to connect with the strongest signal of signal strength at present, together
Sample can be using KV roaming process or forced roaming process.
In addition, permitting the specified data type of adjacent AP to be compared with the lower traffic data type for hanging terminal each signal
When, if either signal permits the specified data type of adjacent AP consistent with the lower extension traffic data type of terminal, and there are
When signal permits that the specified data type of adjacent AP is consistent with the specified data type of target AP, this situation is faced, in order to avoid
Ping-pong avoids lower extension terminal that from may permitting to switch repeatedly between adjacent AP in target AP and signal, influences normal use,
AC can make lower extension terminal force to maintain to connect with target AP, and lower extension terminal is avoided to permit adjacent AP to connect with signal.
It should be noted that in mobile communication system, if two base station signal strength acute variations, hand in certain area
Machine will toggle between two base stations, this situation becomes ping-pong.
Another embodiment in the embodiment of the present invention, specified data type include at least video, audio or picture.
Embodiment two
Shown in Figure 7, the embodiment of the present invention provides switching system between a kind of wireless access point AP, is used to wireless
Network, wireless network include Radio Access Controller AC and at least two wireless access point AP, which includes:
The business configuration module 1 being set in AC is used to configure specified data type to each AP；
The business judgment module 2 being set in AC is used to obtain the corresponding each lower extension of target AP from business analysis module 6
The business datum data type of terminal, and be compared with the specified data type of target AP；
The intensity being set in AC obtains module 3, is used to obtain adjacent AP from signal detection module 7 and is hung under for it
Between signal strength；
The enquiry module 4 being set in AC, is used to obtain and the lower signal strength hung between terminal is greater than preset letter
Each adjacent AP of number intensity threshold is denoted as signal and permits adjacent AP, and obtains the specified data type that each signal permits adjacent AP；
The switching module 5 being set in AC, if being used for either signal permits the specified data type of adjacent AP and lower extension
The traffic data type of terminal is consistent, then controls target AP, lower extension terminal and signal permit adjacent AP, complete it is lower hang terminal with
The middle connection breaking of target AP and the lower connection hung terminal and signal and permit adjacent AP, it is on the contrary then control target AP and lower extension terminal
Maintain connection；
The business diagnosis module 6 being set in AP is used to obtain corresponding industry according to each lower business datum for hanging terminal
Business data type；
The signal detection module 7 being set in AP is used to detect AP and the lower signal strength hung between terminal.
It should be noted that wireless access point AP method for switching between as mentioned in the embodiments of the present invention mainly applies to wirelessly
Network, the wireless network include a Radio Access Controller AC and at least two wireless access point APs；
When specific operation, a signal strength threshold is preset, with the AP of the lower signal strength for hanging terminal above this threshold, is removed
It goes other than the AP currently being connect with the lower extension terminal, other AP can be considered the lower adjacent AP for hanging terminal；
Wherein, each wireless access point AP possesses identical SSID and identical certification setting, and there is overlapping covering
Region,
In addition, AP subnet refers to the network being made of at least two AP.
In the embodiment of the present invention, specified data type, this step are configured to each AP first with Radio Access Controller AC
In specified data type be mainly used for marking the data type of the wireless access point AP priority processing, it can be understood as by each nothing
The task of line access point AP is divided in advance, it should be noted that specified data type only carries out data type
Label, i.e., in various data types, the task which is undertaken is more likely to be responsible for the data type, and simultaneously
Non- other data types wireless access point AP can not be handled；
In turn, target AP can traverse the lower extension terminal of its current time connection, and judge each lower business datum for hanging terminal
Whether type is consistent with the specified data type of target AP；
The lower traffic data type for hanging terminal to be obtained, and after being differentiated, if the lower traffic data type for hanging terminal with
The specified data type of target AP is consistent, then lower terminal of hanging continues to connect with target AP, without processing；
Wherein, whether the lower traffic data type for hanging terminal of judgement is consistent with the preset specified data type of target AP,
The process specifically includes the following steps:
The lower message hung in the business datum of terminal of target AP parsing, obtains the protocol type of message, according to protocol type
Obtain traffic data type；
AC compares the specified data type of the lower traffic data type for hanging terminal and target AP；
If the lower traffic data type for hanging terminal and the specified data type of target AP are inconsistent, need further to obtain
The lower adjacent AP for hanging terminal, and each adjacent AP and the lower signal strength hung between terminal and preset signal strength threshold are carried out
Compare；
Each adjacent AP that signal strength is greater than preset signal strength threshold is obtained, signal is denoted as and permits adjacent AP, and time
It goes through each signal and permits adjacent AP, obtain the specified data type that each institute's signal permits adjacent AP, each signal is permitted adjacent AP's
Specified data type is compared with the lower traffic data type for hanging terminal；
If either signal permits that the specified data type of adjacent AP is consistent with the lower extension traffic data type of terminal, i.e. data
Type is consistent and signal strength also complies with the signal of requirement and adjacent AP is permitted to be more suitable for connect with lower the extensions terminal, then descends extension at this time
Terminal and connection breaking in target AP, and then permit adjacent AP connection with corresponding signal；
Conversely, either signal permits the specified data type of adjacent AP and the lower traffic data type for hanging terminal different
It causes, then lower terminal of hanging is connected with target AP maintenance.
The embodiment of the present invention distributes specified data type to each AP in advance, for different data types, to wireless access
Load between point AP carries out classifying rationally, promotes user experience.
Another embodiment in the embodiment of the present invention, business diagnosis module 6 are also used to parse the corresponding lower extension of AP eventually
Message in the business datum at end obtains the protocol type of message, obtains traffic data type according to protocol type；
When specific operation, it can be and service message parsed using skb handling function, obtain the agreement of service message
Type, and the corresponding traffic data type of service message is sentenced according to protocol type；
For example, the corresponding data type of SIP is voice data, the corresponding data of IGMP after parsing obtains protocol type
Type is video data, and the corresponding data type of HTTP is web data；
Wherein, skb handling function, that is, Linux protocol stack skb handling function.
Another embodiment in the embodiment of the present invention, intensity obtain module 3 and are also used to according to the lower identity for hanging terminal
Information hangs downwards the 7 strength of transmitted signals detection instruction of signal detection module of each adjacent AP of terminal；
7 response signal intensity detection of signal detection module to each adjacent AP instructs, and obtains adjacent AP and lower extension terminal
Signal strength, and feed back to after intensity obtains module 3, intensity obtains module 3, and be also used to will be between each adjacent AP and lower extension terminal
Signal strength be compared with signal strength threshold；
It should be noted that signal strength is specially RSSI value, the lower identity information for hanging terminal is with specifically can be MAC
Location；
And signal strength threshold is the wireless access point AP and the lower communication performance hung between terminal according to wireless network
It is set, when signal strength is more than signal strength threshold, the communication quality between wireless access point AP and terminal can
Meet the normal use demand of user.
Another embodiment in the embodiment of the present invention, if lower extension terminal supports 802.11KV agreement, switching module 5 is also
For carrying out KV roaming process, switching module 5 is specifically used for:
Control target AP is connect with lower extension terminal aborts；
Control signal permits adjacent AP to hang terminal downwards and send 802.11KV switching request；
802.11KV switching request is responded to lower extension terminal, the lower terminal AP adjacent with signal license that hang is controlled and connect；
Specifically, the workflow of KV roaming process is as follows:
1, switching module 5 sends disconnecting instruction to target AP；
2, target AP responds disconnecting instruction, connect with lower extension terminal aborts；
3, switching module 5 permits adjacent AP to send KV roaming instructions to signal；
4, signal permits adjacent AP to respond KV roaming instructions, hangs terminal downwards and sends 802.11KV switching request；
5, lower extension terminal responds 802.11KV switching request, permits adjacent AP to connect with signal
Another embodiment in the embodiment of the present invention, switching module 5 are also used to carry out forced roaming process, switch mould
Block 5 is specifically used for:
Control target AP is connect with lower extension terminal aborts, and then is controlled target AP and refused lower extension terminal within a preset time
Connection request；
Switching module 5 is also used to control signal and adjacent AP is permitted to connect with lower extension terminal；
Specifically, the workflow of forced roaming process is as follows:
1, switching module 5 sends disconnecting instruction and refusal reconnection instruction to target AP；
2, target AP responds disconnecting instruction and refusal reconnection instruction, connect with the lower extension terminal aborts, and
The refusal lower connection request for hanging terminal in preset time；
3, lower extension terminal permits adjacent AP to connect with signal.
Another embodiment in the embodiment of the present invention, multiple signals permit the specified data type of adjacent AP if it exists
When consistent with the lower extension traffic data type of terminal, switching module 5 be also used to each signal of comparison permit adjacent AP respectively with lower extension
Signal strength between terminal；
Switching module 5 is also used to control target AP, lower extension terminal and signal and permits adjacent AP, completes lower extension terminal and mesh
Mark the middle connection breaking and the lower connection hung terminal and permit adjacent AP with the strongest signal of signal strength of AP；
It should be noted that this hangs the mode that terminal permits adjacent AP to connect with the strongest signal of signal strength at present, together
Sample can be using KV roaming process or forced roaming process.
In addition, permitting the specified data type of adjacent AP to be compared with the lower traffic data type for hanging terminal each signal
When, if either signal permits the specified data type of adjacent AP consistent with the lower extension traffic data type of terminal, and there are
When signal permits that the specified data type of adjacent AP is consistent with the specified data type of target AP, this situation is faced, in order to avoid
Ping-pong avoids lower extension terminal that from may permitting to switch repeatedly between adjacent AP in target AP and signal, influences normal use,
AC can make lower extension terminal force to maintain to connect with target AP, and lower extension terminal is avoided to permit adjacent AP to connect with signal.
It should be noted that in mobile communication system, if two base station signal strength acute variations, hand in certain area
Machine will toggle between two base stations, this situation becomes ping-pong.
Another embodiment in the embodiment of the present invention, specified data type include at least video, audio or picture.
Based on the same inventive concept, this application provides the embodiment of the corresponding storage medium of embodiment one, it is detailed in implementation
Example three
Embodiment three
Third embodiment of the invention provides a kind of computer readable storage medium, is stored thereon with computer program, meter
All method and steps or Part Methods step in first embodiment are realized when calculation machine program is executed by processor.
The present invention realizes all or part of the process in above-mentioned first embodiment, can also be instructed by computer program
Relevant hardware is completed, and computer program can be stored in a computer readable storage medium, which is being located
It manages when device executes, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, computer program includes computer program code,
Computer program code can be source code form, object identification code form, executable file or certain intermediate forms etc..Computer
Readable medium may include: any entity or device, recording medium, USB flash disk, mobile hard that can carry computer program code
Disk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory
(RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It needs to illustrate
It is that the content that computer-readable medium includes can carry out appropriate according to the requirement made laws in jurisdiction with patent practice
Increase and decrease, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium do not include electric carrier signal and
Telecommunication signal.
Based on the same inventive concept, this application provides the embodiment of the corresponding equipment of embodiment one, detailed in Example four
Example IV
Fourth embodiment of the invention also provides a kind of equipment, including memory and processor, stores and is locating on memory
The computer program that runs on reason device, processor realized when executing computer program all method and steps in first embodiment or
Part Methods step.
Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng processor is the control centre of computer installation, utilizes each portion of various interfaces and the entire computer installation of connection
Point.
Memory can be used for storing computer program and/or module, and processor is stored in memory by operation or execution
Interior computer program and/or module, and the data being stored in memory are called, realize the various function of computer installation
Energy.Memory can mainly include storing program area and storage data area, wherein storing program area can storage program area, at least
Application program needed for one function (such as sound-playing function, image player function etc.) etc.；Storage data area can store root
Created data (such as audio data, video data etc.) etc. are used according to mobile phone.In addition, memory may include high speed with
Machine accesses memory, can also include nonvolatile memory, such as hard disk, memory, plug-in type hard disk, intelligent memory card (S
Mart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card), at least one
A disk memory, flush memory device or other volatile solid-state parts.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system, server or calculating
Machine program product.Therefore, the present invention can be used complete hardware embodiment, complete software embodiment or combine software and hardware side
The form of the embodiment in face.Moreover, it wherein includes computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in computer-usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, equipment (system), server and computer program product
Flowchart and/or the block diagram describe.It should be understood that can be realized by computer program instructions in flowchart and/or the block diagram
The combination of process and/or box in each flow and/or block and flowchart and/or the block diagram.It can provide these calculating
Processing of the machine program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices
Device is to generate a machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute
For realizing the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram
Device.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of wireless access point AP method for switching between, the described method comprises the following steps:
Radio Access Controller AC configures specified data type to each AP；
Target AP traversal is lower to hang terminal, judge the lower traffic data type for hanging terminal whether the specified data class with the target AP
Type is consistent；
If inconsistent, the lower each adjacent AP for hanging terminal is obtained, and will be between each adjacent AP and the lower extension terminal
Signal strength be compared with preset signal strength threshold；
Each adjacent AP that the signal strength is greater than preset signal strength threshold is obtained, signal is denoted as and permits adjacent AP,
And traverse each signal and permit adjacent AP, each signal is permitted to the specified data type and the lower extension terminal of adjacent AP
Traffic data type be compared；
If any signal permits that the specified data type of adjacent AP is consistent with the lower extension traffic data type of terminal,
The lower extension terminal and connection breaking in the target AP, and then permit adjacent AP connection, on the contrary then institute with the corresponding signal
It states lower extension terminal and the target AP maintains to connect.
2. the method as described in claim 1, which is characterized in that under the judgement hang terminal traffic data type whether with institute
The preset specified data type for stating target AP is consistent, comprising the following steps:
The target AP parses the message in the lower business datum for hanging terminal, obtains the protocol type of the message,
The traffic data type is obtained according to the protocol type；
The AC compares the lower traffic data type for hanging terminal and the specified data type of the target AP.
3. the method as described in claim 1, which is characterized in that it is described will be between each adjacent AP and the lower extension terminal
When signal strength is compared with preset signal strength threshold, comprising the following steps:
The AC is according to the lower identity information for hanging terminal, to each adjacent AP strength of transmitted signals detection instruction；
Each adjacent AP responds the signal strength detection instruction, obtains and the lower signal strength for hanging terminal；
The AC compares the signal strength between each adjacent AP and the lower extension terminal with the signal strength threshold
Compared with.
4. the method as described in claim 1, which is characterized in that if the lower extension terminal supports 802.11KV agreement, under described
When hanging connection breaking in terminal and the target AP, and then permitting adjacent AP connection with the corresponding signal, specifically include following
Step:
The lower extension terminal and connection breaking in the target AP；
The signal permits adjacent AP to send 802.11KV switching request to the lower extension terminal；
The lower extension terminal responds the 802.11KV switching request, permits adjacent AP to connect with the signal.
5. the method as described in claim 1, which is characterized in that the lower extension terminal and connection breaking in the target AP, in turn
When permitting adjacent AP connection with the corresponding signal, specifically includes the following steps:
The AC controls the target AP and connect with the lower extension terminal aborts, and controls the target AP and refuse within a preset time
The lower connection request for hanging terminal described absolutely；
The lower extension terminal permits adjacent AP to connect with the signal.
6. the method as described in claim 1, which is characterized in that multiple signals permit the specified data of adjacent AP if it exists
Type is consistent with the lower extension traffic data type of terminal, the described method comprises the following steps:
Compare each signal and permits signal strength of the adjacent AP respectively between the lower extension terminal；
The lower extension terminal and connection breaking in the target AP, and then permit adjacent AP to connect with the strongest signal of signal strength
It connects.
7. switching system between a kind of wireless access point AP, is used to wireless network, the wireless network includes wireless access
Controller AC and at least two wireless access point AP, which is characterized in that the system comprises:
The business configuration module being set in the AC is used for each AP configuration specified data type；
The business judgment module being set in the AC, be used to obtain from business analysis module the target AP it is corresponding it is each under
The business datum data type of terminal is hung, and is compared with the specified data type of the target AP；
The intensity being set in the AC obtains module, is used to obtain the adjacent AP and the lower extension from signal detection module
Signal strength between equipment；
The enquiry module being set in the AC, is used to obtain and the lower signal strength hung between terminal is greater than in advance
If signal strength threshold each adjacent AP, be denoted as signal and permit adjacent AP, and obtain each signal and permit adjacent AP
Specified data type；
The switching module being set in the AC, if being used for specified data type and institute that any signal permits adjacent AP
It is consistent to state the lower traffic data type for hanging terminal, then controls the target AP, the lower extension terminal and signal license phase
It is adjacent with signal license to complete the lower middle connection breaking for hanging terminal and the target AP and the lower extension terminal by adjacent AP
The connection of AP, it is on the contrary then control the target AP and lower the extensions terminal maintains connection；
The business diagnosis module being set in the AP is used to be obtained according to each lower business datum for hanging terminal corresponding
Traffic data type；
The signal detection module being set in the AP, is used to detect the AP and the lower signal hung between terminal is strong
Degree.
8. system as claimed in claim 7, it is characterised in that:
The business diagnosis module is also used to parse the message in the corresponding lower business datum for hanging terminal of the AP,
The protocol type for obtaining the message obtains the traffic data type according to the protocol type.
9. system as claimed in claim 7, it is characterised in that:
The intensity obtains module and is also used to according to the lower identity information for hanging terminal, to the lower each phase for hanging terminal
The signal detection module strength of transmitted signals detection instruction of adjacent AP；
The signal detection module to each adjacent AP responds signal strength detection instruction, obtain the adjacent AP with
The lower signal strength for hanging terminal, and feeding back to after the intensity obtains module, the intensity obtains that module is also used to will be each
Signal strength between the adjacent AP and the lower extension terminal is compared with the signal strength threshold.
10. system as claimed in claim 7, which is characterized in that described to cut if the lower extension terminal supports 802.11KV agreement
Mold changing block is also used to:
The target AP is controlled to connect with the lower extension terminal aborts；
Controlling the signal permits adjacent AP to send 802.11KV switching request to the lower extension terminal；
The 802.11KV switching request is responded to the lower extension terminal, it is adjacent with signal license to control the lower extension terminal
AP connection.
11. system as claimed in claim 7, which is characterized in that the switching module is also used to control the target AP and institute
Lower extension terminal aborts connection is stated, and then controls the target AP and refuses the lower connection request for hanging terminal within a preset time；
The switching module is also used to control the signal and adjacent AP is permitted to connect with the lower extension terminal.
12. system as claimed in claim 7, which is characterized in that multiple signals permit the specified number of adjacent AP if it exists
When consistent with the lower extension traffic data type of terminal according to type, the switching module is also used to each signal license of comparison
Adjacent AP respectively it is described it is lower hang terminal between signal strength；
The switching module is also used to control the target AP, the lower extension terminal and the signal and permits adjacent AP, completes
The lower extension terminal is permitted with the middle connection breaking of the target AP and the lower extension terminal with the strongest signal of signal strength
Can adjacent AP connection.
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