CN107360604B - Method for guiding wireless terminal to associate wireless access point and wireless controller - Google Patents
Method for guiding wireless terminal to associate wireless access point and wireless controller Download PDFInfo
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- CN107360604B CN107360604B CN201710485140.6A CN201710485140A CN107360604B CN 107360604 B CN107360604 B CN 107360604B CN 201710485140 A CN201710485140 A CN 201710485140A CN 107360604 B CN107360604 B CN 107360604B
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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
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/165—Performing reselection for specific purposes for reducing network power consumption
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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
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Abstract
The embodiment of the invention provides a method for guiding a wireless terminal to associate with a wireless Access Point (AP) and a wireless controller, wherein the method comprises the following steps: receiving messages among all wireless terminals in a wireless local area network to which a first period belongs, determining the types of the messages, establishing an interactive relation table among the wireless terminals according to the types of the messages, determining that the AP associated with the first wireless terminal is a central AP when the maximum number of the wireless terminals interacting with the first wireless terminal in the wireless terminals is determined according to the interactive relation table, determining whether the wireless terminals except the first wireless terminal in the wireless terminals are associated with the central AP or not, and guiding the wireless terminals except the first wireless terminal in the wireless terminals from the non-central AP to the central AP when the wireless terminals except the first wireless terminal in the wireless terminals are associated with the non-central AP. The problem of remote association is solved.
Description
Technical Field
The invention relates to the field of data communication, in particular to a method for guiding a wireless terminal to associate with a wireless Access Point (AP) and a wireless controller.
Background
With the further development of digital teaching resource construction and campus network construction, new teaching research based on student electronic schoolbag (a wireless terminal) application is gaining favor of more and more educators. Fig. 1 is a schematic diagram illustrating a deployment of an e-book packet network in the prior art, where the e-book packet network includes physical devices such as a wireless access point AP, a teacher e-book, a student e-book, an electronic whiteboard, and a classroom computer, where the wireless access point is connected to a wireless controller AC, the e-book changes a traditional teaching mode, and the wireless network is an infrastructure implemented by the e-book, but the application of the e-book also provides higher requirements and greater challenges for the wireless network, and in a classroom capable of accommodating 60-100 persons, each student has one e-book in hand, and the student simultaneously accesses a wireless local area network to perform interactive teaching with a teacher. In such a high-density user area, the conventional wireless solution must deploy multiple wireless access points AP as user access points, however, there are many disadvantages to deploying multiple APs, such as signal interference between APs, troublesome deployment, complex maintenance, etc., especially the problem of remote association, fig. 2 is a schematic diagram of a remote association network, and as shown in fig. 2, a wireless terminal originally belonging to classroom 1 should associate with the wireless access point AP1 in classroom 1, but is associated with the wireless access point AP2 in classroom 2, even the wireless access point AP3 in classroom 3, or the wireless access point AP4 in classroom 4, the remote association means that the wireless terminal is not associated with the AP1 of its own classroom as planned, but are associated with APs in other classrooms, which results in long distance and poor signal quality, and finally causes network problems such as packet loss and large delay, thereby affecting teaching quality.
The prior art scheme mainly has 2 directions:
1) configuration based planning
By configuring a different SSID (Service Set Identifier) for each classroom, students switch to the corresponding SSID on the wireless terminal before class, so as to ensure the correct association to the wireless access point AP.
According to the scheme, the deployment management cost is increased, meanwhile, the SSID needs to be manually switched every class, and the use cost is increased.
2) The distance is determined based on the RSSI (Received Signal Strength Indication) Signal, and the accuracy of the associated AP is confirmed by determining the distance of the wireless terminal by evaluating the RSSI Signal of the wireless terminal. However, the distance and distance judgment according to the RSSI signal is poor in accuracy and cannot be correctly identified.
Disclosure of Invention
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
a method of directing a wireless terminal to associate with a wireless access point, AP, comprising the steps of:
receiving messages between all wireless terminals in the wireless local area network to which the first period belongs,
determining the type of the message, establishing an interactive relation table between the wireless terminals according to the type of the message,
determining the AP associated with the first wireless terminal as a center AP when the maximum number of the wireless terminals interacting with the first wireless terminal in the wireless terminals is determined according to the interaction relation table,
determining whether wireless terminals of the wireless terminals other than the first wireless terminal are associated with the central AP,
when wireless terminals except the first wireless terminal in the wireless terminals are associated to a non-central AP, the wireless terminals except the first wireless terminal in the wireless terminals are guided to the central AP from the non-central AP.
Optionally, the step of determining the type of the packet specifically includes:
and determining that the message is a multicast message or a unicast message.
Optionally, the step of establishing the interaction relation table between the wireless terminals according to the type of the packet specifically includes:
when the message is a multicast message, determining member wireless terminals contained in a multicast group corresponding to the multicast message in the wireless terminals, and establishing an interactive relation table among the member wireless terminals;
the step of determining that the AP associated with the first wireless terminal is the central AP when determining that the number of the wireless terminals interacting with the first wireless terminal among the wireless terminals is the largest according to the interaction relationship table specifically includes:
and when only a first wireless terminal in the wireless terminals sends multicast messages to other member wireless terminals in the member wireless terminals according to the interactive relation table among the member wireless terminals, determining that the AP associated with the first wireless terminal is a central AP.
Optionally, the step of establishing the interaction relation table between the wireless terminals according to the type of the packet specifically includes:
when the message is a unicast message, acquiring a source IP address and a destination IP address in the unicast message, and establishing an interactive relation table between the wireless terminals according to the source IP address and the destination IP address;
the step of determining that the AP associated with the first wireless terminal is the central AP when determining that the number of the wireless terminals interacting with the first wireless terminal among the wireless terminals is the largest according to the interaction relationship table specifically includes:
and when determining that the number of times that a first wireless terminal in the wireless terminals sends messages to other wireless terminals in the wireless terminals is the maximum according to the number of the source IP addresses and the number of the destination IP addresses in the interactive relation table, determining that the AP associated with the first wireless terminal is the central AP.
Optionally, the step of directing the wireless terminals except the first wireless terminal from the non-central AP to the central AP specifically includes:
instructing the non-central AP to disassociate from ones of the wireless terminals other than the first wireless terminal;
instructing the non-central AP to prohibit association of wireless terminals except the first wireless terminal in the wireless terminals within a set period;
instructing the central AP to enhance signal strength in the set period so as to attract wireless terminals except the first wireless terminal to be associated to the central AP.
The embodiment of the present invention further provides a wireless controller for guiding a wireless terminal to associate with an AP, including:
a receiving module, for receiving the message between all wireless terminals in the wireless local area network to which the first period belongs,
a first determining module for determining the type of the message,
an establishing module for establishing an interactive relation table between the wireless terminals according to the types of the messages,
a second determining module, configured to determine that an AP associated with a first wireless terminal is a central AP when determining, according to the interaction relation table, that the number of wireless terminals interacting with the first wireless terminal is the largest,
a third determining module for determining whether a wireless terminal other than the first wireless terminal among the wireless terminals is associated with the central AP,
a guiding module, configured to guide, when a wireless terminal other than the first wireless terminal in the wireless terminals is associated with a non-central AP, the wireless terminal other than the first wireless terminal in the wireless terminals from the non-central AP to the central AP.
Optionally, the first determining module is specifically configured to:
and determining that the message is a multicast message or a unicast message.
Optionally, the establishing module is specifically configured to:
when the message is a multicast message, determining member wireless terminals contained in a multicast group corresponding to the multicast message in the wireless terminals, and establishing an interactive relation table among the member wireless terminals;
the second determining module is specifically configured to:
and when only a first wireless terminal in the wireless terminals sends multicast messages to other member wireless terminals in the member wireless terminals according to the interactive relation table among the member wireless terminals, determining that the AP associated with the first wireless terminal is a central AP.
Optionally, the establishing module is specifically configured to:
when the message is a unicast message, acquiring a source IP address and a destination IP address in the unicast message, and establishing an interactive relation table between the wireless terminals according to the source IP address and the destination IP address;
the second determining module is specifically configured to:
and when determining that the number of times that a first wireless terminal in the wireless terminals sends messages to other wireless terminals in the wireless terminals is the maximum according to the number of the source IP addresses and the number of the destination IP addresses in the interactive relation table, determining that the AP associated with the first wireless terminal is the central AP.
Optionally, the guidance module is specifically configured to:
instructing the non-central AP to disassociate from ones of the wireless terminals other than the first wireless terminal;
instructing the non-central AP to prohibit association of wireless terminals except the first wireless terminal in the wireless terminals within a set period;
instructing the central AP to enhance signal strength in the set period so as to attract wireless terminals except the first wireless terminal to be associated to the central AP.
The method comprises the steps of receiving messages among all wireless terminals in a wireless local area network to which a first period belongs, determining the types of the messages, establishing an interactive relation table among the wireless terminals according to the types of the messages, determining an AP (access point) associated with a first wireless terminal as a central AP when the maximum number of the wireless terminals interacting with the first wireless terminal is determined according to the interactive relation table, determining whether the wireless terminals except the first wireless terminal in the wireless terminals are associated with the central AP or not, and guiding the wireless terminals except the first wireless terminal in the wireless terminals from the non-central AP to the central AP when the wireless terminals except the first wireless terminal in the wireless terminals are associated with the non-central AP. Therefore, the problem of far-end association is identified and solved based on the flow relation, and compared with the existing methods of configuration optimization, power limitation and the like, the method is more accurate, and the problem of network experience caused by far-end association is effectively avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an e-book packet network deployment structure in the prior art;
FIG. 2 is a diagram illustrating a remote association network in the prior art;
FIG. 3 is a flow chart of a method according to an embodiment of the present invention;
FIG. 4 is a flow chart of a method according to an embodiment of the present invention;
FIG. 5 is a flow chart of a method according to an embodiment of the present invention;
FIG. 6 is a diagram of an apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A first embodiment of the present invention provides a method for guiding a wireless terminal to associate with a wireless access point AP, as shown in fig. 3, including the following steps:
s101, receiving messages among all wireless terminals in a wireless local area network to which a first period belongs,
s103, determining the type of the message,
s105, establishing an interactive relation table among the wireless terminals according to the types of the messages,
s107, when the maximum number of the wireless terminals interacting with the first wireless terminal in the wireless terminals is determined according to the interaction relation table, determining the AP associated with the first wireless terminal as a central AP,
s109, determining whether a wireless terminal other than the first wireless terminal among the wireless terminals is associated to the center AP,
s111, when a wireless terminal other than the first wireless terminal in the wireless terminals is associated with a non-central AP, guiding the wireless terminal other than the first wireless terminal in the wireless terminals from the non-central AP to the central AP.
Optionally, on the basis of the first embodiment of the present invention, in the second embodiment of the present invention, as shown in fig. 4, step S103 specifically includes:
and determining that the message is a multicast message or a unicast message.
Optionally, on the basis of the second embodiment of the present invention, in a third embodiment of the present invention, as shown in fig. 4, step S105 specifically includes:
when the message is a multicast message, determining member wireless terminals contained in a multicast group corresponding to the multicast message in the wireless terminals, and establishing an interactive relation table among the member wireless terminals;
step S107 specifically includes:
and when only a first wireless terminal in the wireless terminals sends multicast messages to other member wireless terminals in the member wireless terminals according to the interactive relation table among the member wireless terminals, determining that the AP associated with the first wireless terminal is a central AP.
For example, in the case of multicast messages, all the wireless terminals IP joining a multicast group can be identified by IGMP (Internet group management Protocol) multicast table entry,
for example, the IP address of the wireless terminal 1 is: 10.0.0.1, the IP address of wireless terminal 2 is: 10.0.0.2, the IP address of wireless terminal 3 is: 10.0.0.3, the IP address of wireless terminal 4 is: 10.0.0.4, the multicast list items can identify that the wireless terminals all join the multicast group A;
because the multicast data stream between the wireless terminals will pass through the wireless controller AC, and the wireless controller AC can find out through the analysis of the multicast data stream, in a time period, the wireless terminal 1 will send the multicast data traffic of the multicast group a, and the other wireless terminals 2, 3, 4 are all responsible for receiving, and will not send the multicast data traffic or the number of times of sending the multicast data traffic is less than that of the wireless terminal 1, and the interaction relationship table is shown in table 1:
| multicast sender | Multicast receiver | Number of transmissions |
| 10.0.0.1 | 10.0.0.2 | 10 |
| 10.0.0.1 | 10.0.0.3 | 12 |
| 10.0.0.1 | 10.0.0.4 | 15 |
| 10.0.0.2 | 10.0.0.1 | 0 |
| 10.0.0.2 | 10.0.0.3 | 0 |
| 10.0.0.2 | 10.0.0.4 | 0 |
| 10.0.0.3 | 10.0.0.1 | 0 |
| 10.0.0.3 | 10.0.0.2 | 0 |
| 10.0.0.3 | 10.0.0.4 | 0 |
| 10.0.0.4 | 10.0.0.1 | 0 |
| 10.0.0.4 | 10.0.0.2 | 0 |
| 10.0.0.4 | 10.0.0.3 | 0 |
TABLE 1
As can be seen from table 1, the wireless terminal 1 is the wireless terminal that transmits the multicast data stream the most frequently, and can confirm that the wireless terminal 1 is the teacher wireless terminal. This leads to all member wireless terminals accessing the multicast group a and the teacher wireless terminal therein. At this time, the AP with which the teacher wireless terminal is associated is the center AP.
Optionally, on the basis of the second embodiment of the present invention, in a fourth embodiment of the present invention, as shown in fig. 5, step S105 specifically includes:
when the message is a unicast message, acquiring a source IP address and a destination IP address in the unicast message, and establishing an interactive relation table between the wireless terminals according to the source IP address and the destination IP address;
step S107 specifically includes:
and when determining that the number of times that a first wireless terminal in the wireless terminals sends messages to other wireless terminals in the wireless terminals is the maximum according to the number of the source IP addresses and the number of the destination IP addresses in the interactive relation table, determining that the AP associated with the first wireless terminal is the central AP.
For example, the IP address of the wireless terminal 1 is: 10.0.0.1, the IP address of wireless terminal 2 is: 10.0.0.2, the IP address of wireless terminal 3 is: 10.0.0.3, the IP address of wireless terminal 4 is: 10.0.0.4;
since the unicast data stream between the wireless terminals will pass through the wireless controller AC, the wireless controller AC can find out through the analysis of the unicast data stream that the number of times the wireless terminal 1 sends the unicast data stream to other wireless terminals is the largest in a time period, and the interaction relation table is shown in table 2:
| unicast sender | Unicast receiver | Number of transmissions |
| 10.0.0.1 | 10.0.0.2 | 10 |
| 10.0.0.1 | 10.0.0.3 | 12 |
| 10.0.0.1 | 10.0.0.4 | 15 |
| 10.0.0.2 | 10.0.0.1 | 1 |
| 10.0.0.2 | 10.0.0.3 | 2 |
| 10.0.0.2 | 10.0.0.4 | 1 |
| 10.0.0.3 | 10.0.0.1 | 2 |
| 10.0.0.3 | 10.0.0.2 | 1 |
| 10.0.0.3 | 10.0.0.4 | 2 |
| 10.0.0.4 | 10.0.0.1 | 1 |
| 10.0.0.4 | 10.0.0.2 | 2 |
| 10.0.0.4 | 10.0.0.3 | 1 |
TABLE 2
As can be seen from table 2, the wireless terminal 1 is the wireless terminal that transmits the unicast data stream most frequently to other wireless terminals, and can confirm that the wireless terminal 1 is the teacher wireless terminal. At this time, the AP with which the teacher wireless terminal is associated is the center AP.
Optionally, in step S109, it may be determined whether a wireless terminal other than the first wireless terminal among the wireless terminals is associated with the central AP through a wireless terminal and AP association table on a wireless controller.
For example, the IP address of the wireless terminal 1 is: 10.0.0.1, the IP address of wireless terminal 2 is: 10.0.0.2, the IP address of wireless terminal 3 is: 10.0.0.3, the IP address of wireless terminal 4 is: 10.0.0.4; by inquiring the association table of the wireless terminal and the AP, the wireless terminals 1, 2 and 4 can be found to be associated with the central AP, and only the wireless terminal 3 is associated with the non-central AP.
Optionally, on the basis of the first embodiment of the present invention, in a fifth embodiment of the present invention, step S111 specifically includes:
instructing the non-central AP to disassociate from ones of the wireless terminals other than the first wireless terminal;
instructing the non-central AP to prohibit association of wireless terminals except the first wireless terminal in the wireless terminals within a set period;
instructing the central AP to enhance signal strength in the set period so as to attract wireless terminals except the first wireless terminal to be associated to the central AP.
The embodiment of the invention has the advantages that the problem of remote association is identified and solved based on the flow relation, compared with the existing methods of configuration optimization, power limitation and the like, the method is more accurate, and the problem of network experience caused by remote association is effectively avoided.
A sixth embodiment of the present invention further provides a wireless controller for guiding a wireless terminal to associate with an AP, as shown in fig. 6, including:
a receiving module 201, configured to receive messages between all wireless terminals in the wlan to which the first period belongs,
a first determining module 203, configured to determine the type of the packet,
an establishing module 205, configured to establish an interaction relation table between the wireless terminals according to the type of the packet,
a second determining module 207, configured to determine that an AP associated with a first wireless terminal is a central AP when determining, according to the interaction relation table, that the number of wireless terminals interacting with the first wireless terminal is the largest,
a third determining module 209 for determining whether a wireless terminal other than the first wireless terminal among the wireless terminals is associated with the central AP,
a guiding module 211, configured to guide, when a wireless terminal other than the first wireless terminal in the wireless terminals is associated with a non-central AP, the wireless terminal other than the first wireless terminal in the wireless terminals from the non-central AP to the central AP.
Optionally, on the basis of the sixth embodiment of the present invention, in a seventh embodiment of the present invention, the first determining module 203 is specifically configured to:
and determining that the message is a multicast message or a unicast message.
Optionally, on the basis of the seventh embodiment of the present invention, in an eighth embodiment of the present invention, the establishing module 205 is specifically configured to:
when the message is a multicast message, determining member wireless terminals contained in a multicast group corresponding to the multicast message in the wireless terminals, and establishing an interactive relation table among the member wireless terminals;
the second determining module 207 is specifically configured to:
and when only a first wireless terminal in the wireless terminals sends multicast messages to other member wireless terminals in the member wireless terminals according to the interactive relation table among the member wireless terminals, determining that the AP associated with the first wireless terminal is a central AP.
Optionally, on the basis of the seventh embodiment of the present invention, in a ninth embodiment of the present invention, the establishing module 205 is specifically configured to:
when the message is a unicast message, acquiring a source IP address and a destination IP address in the unicast message, and establishing an interactive relation table between the wireless terminals according to the source IP address and the destination IP address;
the second determining module 207 is specifically configured to:
and when determining that the number of times that a first wireless terminal in the wireless terminals sends messages to other wireless terminals in the wireless terminals is the maximum according to the number of the source IP addresses and the number of the destination IP addresses in the interactive relation table, determining that the AP associated with the first wireless terminal is the central AP.
Optionally, on the basis of the sixth embodiment of the present invention, in a tenth embodiment of the present invention, the guiding module 211 is specifically configured to:
instructing the non-central AP to disassociate from ones of the wireless terminals other than the first wireless terminal;
instructing the non-central AP to prohibit association of wireless terminals except the first wireless terminal in the wireless terminals within a set period;
instructing the central AP to enhance signal strength in the set period so as to attract wireless terminals except the first wireless terminal to be associated to the central AP.
The embodiment of the invention has the advantages that the problem of remote association is identified and solved based on the flow relation, compared with the existing methods of configuration optimization, power limitation and the like, the method is more accurate, and the problem of network experience caused by remote association is effectively avoided.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for directing a wireless terminal to associate with a wireless access point, AP, comprising the steps of:
receiving messages between all wireless terminals in the wireless local area network to which the first period belongs,
determining the type of the message, establishing an interactive relation table between the wireless terminals according to the type of the message,
when the wireless terminal with the largest number of wireless terminals interacted with the wireless terminal in the wireless terminals is determined to be the first wireless terminal according to the interaction relation table, determining the AP associated with the first wireless terminal to be a central AP,
determining whether wireless terminals of the wireless terminals other than the first wireless terminal are associated with the central AP,
when wireless terminals except the first wireless terminal in the wireless terminals are associated to a non-central AP, the wireless terminals except the first wireless terminal in the wireless terminals are guided to the central AP from the non-central AP.
2. The method according to claim 1, wherein the step of determining the type of the packet specifically comprises:
and determining that the message is a multicast message or a unicast message.
3. The method according to claim 2, wherein the step of establishing the table of interaction relationships between the wireless terminals according to the type of the packet specifically comprises:
when the message is a multicast message, determining member wireless terminals contained in a multicast group corresponding to the multicast message in the wireless terminals, and establishing an interactive relation table among the member wireless terminals;
the step of determining that the AP associated with the first wireless terminal is the central AP when the wireless terminal with the largest number of wireless terminals with which the wireless terminal interacts is determined to be the first wireless terminal according to the interaction relation table specifically includes:
and when only a first wireless terminal in the wireless terminals sends multicast messages to other member wireless terminals in the member wireless terminals according to the interactive relation table among the member wireless terminals, determining that the AP associated with the first wireless terminal is a central AP.
4. The method according to claim 2, wherein the step of establishing the table of interaction relationships between the wireless terminals according to the type of the packet specifically comprises:
when the message is a unicast message, acquiring a source IP address and a destination IP address in the unicast message, and establishing an interactive relation table between the wireless terminals according to the source IP address and the destination IP address;
the step of determining, when the wireless terminal with the largest number of wireless terminals interacting with the wireless terminal is determined to be the first wireless terminal according to the interaction relation table, that the AP associated with the first wireless terminal is the central AP specifically includes:
and when determining that the number of times that a first wireless terminal in the wireless terminals sends messages to other wireless terminals in the wireless terminals is the maximum according to the number of the source IP addresses and the number of the destination IP addresses in the interactive relation table, determining that the AP associated with the first wireless terminal is the central AP.
5. The method of claim 1, wherein the step of directing wireless terminals other than the first wireless terminal from the non-central AP to the central AP comprises:
instructing the non-central AP to disassociate from ones of the wireless terminals other than the first wireless terminal;
instructing the non-central AP to prohibit association of wireless terminals except the first wireless terminal in the wireless terminals within a set period;
instructing the central AP to enhance signal strength in the set period so as to attract wireless terminals except the first wireless terminal to be associated to the central AP.
6. A wireless controller for directing a wireless terminal to associate with a wireless access point, AP, comprising:
a receiving module, for receiving the message between all wireless terminals in the wireless local area network to which the first period belongs,
a first determining module for determining the type of the message,
an establishing module for establishing an interactive relation table between the wireless terminals according to the types of the messages,
a second determining module, configured to determine, when it is determined, according to the interaction relation table, that a wireless terminal with a largest number of wireless terminals interacting with the wireless terminal is a first wireless terminal, an AP associated with the first wireless terminal is a central AP,
a third determining module for determining whether a wireless terminal other than the first wireless terminal among the wireless terminals is associated with the central AP,
a guiding module, configured to guide, when a wireless terminal other than the first wireless terminal in the wireless terminals is associated with a non-central AP, the wireless terminal other than the first wireless terminal in the wireless terminals from the non-central AP to the central AP.
7. The wireless controller of claim 6, wherein the first determining module is specifically configured to:
and determining that the message is a multicast message or a unicast message.
8. The wireless controller of claim 7, wherein the establishing module is specifically configured to:
when the message is a multicast message, determining member wireless terminals contained in a multicast group corresponding to the multicast message in the wireless terminals, and establishing an interactive relation table among the member wireless terminals;
the second determining module is specifically configured to:
and when only a first wireless terminal in the wireless terminals sends multicast messages to other member wireless terminals in the member wireless terminals according to the interactive relation table among the member wireless terminals, determining that the AP associated with the first wireless terminal is a central AP.
9. The wireless controller of claim 7, wherein the establishing module is specifically configured to:
when the message is a unicast message, acquiring a source IP address and a destination IP address in the unicast message, and establishing an interactive relation table between the wireless terminals according to the source IP address and the destination IP address;
the second determining module is specifically configured to:
and when determining that the number of times that a first wireless terminal in the wireless terminals sends messages to other wireless terminals in the wireless terminals is the maximum according to the number of the source IP addresses and the number of the destination IP addresses in the interactive relation table, determining that the AP associated with the first wireless terminal is the central AP.
10. The wireless controller of claim 6, wherein the guidance module is specifically configured to:
instructing the non-central AP to disassociate from ones of the wireless terminals other than the first wireless terminal;
instructing the non-central AP to prohibit association of wireless terminals except the first wireless terminal in the wireless terminals within a set period;
instructing the central AP to enhance signal strength in the set period so as to attract wireless terminals except the first wireless terminal to be associated to the central AP.
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