CN113993165B - Wireless local area network load management method, device and system - Google Patents
Wireless local area network load management method, device and system Download PDFInfo
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- CN113993165B CN113993165B CN202111066880.9A CN202111066880A CN113993165B CN 113993165 B CN113993165 B CN 113993165B CN 202111066880 A CN202111066880 A CN 202111066880A CN 113993165 B CN113993165 B CN 113993165B
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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
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
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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
- H04W28/09—Management thereof
- H04W28/0958—Management thereof based on metrics or performance parameters
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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
- H04W28/09—Management thereof
- H04W28/0958—Management thereof based on metrics or performance parameters
- H04W28/0967—Quality of Service [QoS] parameters
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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]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a wireless local area network load management method, a device and a system, wherein the method is applied to an access controller and comprises the following steps: and receiving a first terminal list sent by the first radio frequency access point, receiving a second terminal list sent by a second radio frequency access point which works normally, determining a target terminal based on the first terminal information and the second terminal information, determining a terminal to be removed in the target terminal based on the first signal strength and the second signal strength of the target terminal, and removing the terminal to be removed from the second radio frequency access point. After the silence of the partial radio frequency access points is recovered, the same target terminals in the terminals accessed by the non-silence radio frequency access points and the terminals monitored by the silence radio frequency access points are screened, the terminals to be removed are determined based on the signal strength of the target terminals at the two radio frequency access points, and the terminals to be removed are kicked away from the non-silence radio frequency access points, so that the whole wireless network can be ensured to quickly reach a terminal equilibrium state after the silence of the partial radio frequency is recovered, and the network robustness is maintained.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for managing a wireless local area network load.
Background
Currently the dominant wireless local area network (Wireless Local Area Network, WLAN for short) is ac+fitap mode:
(1) Fit AP: the radio frequency interface can provide access service for users;
(2) AC: and the access controller is used for managing all Fit APs in the network and providing all services except access.
In wireless networks, load balancing is a relatively important piece of content. WLAN networks provide traffic-based and user-based load balancing modes. Only when the APs which perform load balancing with each other are connected to the same AC, and the clients can scan the Radio which performs load balancing with each other, the load balancing function can enable the load calculation of the traffic or the number of users, and all terminals in the network are almost connected to each Radio frequency interface in a balanced manner according to a certain rule, so that the whole network is guaranteed to be in the most robust state.
There is a case where there is a silence period at the beginning of channel selection if the current 5G radio frequency is in the radar channel. In particular, 802.11AC and 802.11AX are currently mainstream, because of the working characteristics of multi-channel bonding, radio frequency operation on radar channels is unavoidable. Then during the radio silence period the terminal needs to connect to either the 5G radio or the 2G radio of other non-radar channels. After the radio frequency silence is finished, the load balancing management can be completed by the load balancing mode which is dependent on the load calculation of the flow and the number of users, and the calculation efficiency can be greatly reduced by the large number of access terminals in the whole network, so that the whole network needs a long time to reach the load balancing state. Therefore, how to make the whole network reach an equilibrium state quickly after the radio frequency silence is finished so as to ensure the robustness of the network becomes a problem to be solved urgently.
Disclosure of Invention
In view of this, the embodiments of the present invention provide a method, an apparatus, and a system for managing a wireless local area network load, so as to solve the problem in the prior art that after the end of the 5G radio frequency silence in the radar channel, the whole WLAN network takes a long time to reach load balancing, and it is difficult to ensure network robustness.
According to a first aspect, an embodiment of the present invention provides a method for managing a wireless local area network load, which is applied to an access controller, and the method includes:
receiving a first terminal list sent by a first radio frequency access point, wherein the first terminal list comprises first terminal information of a terminal which is monitored by the first radio frequency access point in a silent period and corresponding first signal intensity, and receiving a second terminal list sent by a second radio frequency access point which works normally, and the second terminal list comprises second terminal information of a terminal which is accessed by the second radio frequency access point and corresponding second signal intensity;
determining a target terminal based on the first terminal information and the second terminal information, wherein the target terminal is a terminal included in both the first terminal information and the second terminal information;
determining a terminal to be removed in the target terminals based on the first signal strength and the second signal strength of the target terminals;
And removing the terminal to be removed from the second radio frequency access point.
The wireless local area network load management method provided by the embodiment of the invention is characterized in that an access controller receives a first terminal list sent by a first radio frequency access point and receives a second terminal list sent by a second radio frequency access point which works normally; determining a target terminal based on the first terminal information and the second terminal information, wherein the target terminal is a terminal included in both the first terminal information and the second terminal information; determining a terminal to be removed in the target terminal based on the first signal strength and the second signal strength of the target terminal; the terminal to be removed is removed from the second radio frequency access point. After the silence of the partial radio frequency access point is recovered, the same target terminals in the terminals accessed by the non-silence radio frequency access point and the terminals monitored by the silence radio frequency access point are screened, the terminals to be removed in the target terminals are determined according to the signal intensity of the target terminals in different radio frequency access points, and the terminals to be removed of the non-silence radio frequency access point are kicked away from the access point, so that the whole wireless network can quickly reach a terminal equilibrium state after the silence of the partial radio frequency is recovered, and the robustness of the network is maintained.
Optionally, the determining, based on the first signal strength and the second signal strength of the target terminal, a terminal to be removed in the target terminal includes:
judging whether the first signal intensity of the target terminal is larger than the second signal intensity;
and when the first signal strength of the target terminal is greater than the second signal strength, determining the target terminal as a terminal to be removed.
According to the wireless local area network load management method provided by the embodiment of the invention, the access controller determines the target terminal with small second signal strength as the terminal to be removed by comparing the first signal strength and the second signal strength of the target terminal, so that better service can be provided by connecting the terminal to a new radio frequency access point after the terminal is kicked off, and the situation that the terminal is kicked off and is repeatedly connected to the kicked-off radio frequency connection point because the signal is too weak and cannot be connected to the new radio frequency access point is avoided, and the load balance of the wireless network is influenced.
Optionally, before the removing the terminal to be removed from the second radio frequency access point, the method further includes:
acquiring the number of terminals to be removed corresponding to the second radio frequency access point;
sorting the terminals to be removed based on the first signal strength of the terminals to be removed, and determining a list of the terminals to be removed;
And sequentially screening the terminals to be removed from the terminal list to be removed based on the number of the terminals to be removed.
Optionally, before the sequentially screening the terminals to be removed from the terminal to be removed list based on the number of the terminals to be removed, the method further includes:
judging whether the number of the terminals to be removed is smaller than the number of the terminals to be removed in the terminal list to be removed;
and when the number of the terminals to be removed is smaller than the number of the terminals to be removed in the terminal list to be removed, sequentially screening the terminals to be removed from the terminal list to be removed based on the number of the terminals to be removed.
According to the wireless local area network load management method provided by the embodiment of the invention, the access controller sorts the terminals to be removed by utilizing the first signal strength, screens out the terminals to be removed which meet the number requirement of the terminals to be removed, and removes the terminals to be removed, so that the terminals after removal can be guaranteed to obtain better services.
According to a second aspect, an embodiment of the present invention provides a method for managing a wireless local area network load, applied to a first radio frequency access point having a quiet period, the method including:
recording first terminal information of a terminal monitored in a silent period and corresponding first signal intensity;
Generating a first terminal list based on the first terminal information and the corresponding first signal strength;
after the silence period is over, the first terminal list is sent to an access controller, so that the access controller determines a target terminal according to the first terminal list and a second terminal list sent by a second radio frequency access point which works normally, determines a terminal to be removed according to the first signal strength and the second signal strength of the target terminal, and removes the terminal to be removed from the second radio frequency access point; the second terminal list includes second terminal information of the terminal accessed by the second radio frequency access point and corresponding second signal strength, and the target terminal is a terminal included in both the first terminal information and the second terminal information.
According to the wireless local area network load management method provided by the embodiment of the invention, the first radio frequency access point with the silent period records the first terminal information of the monitored terminal in the silent period and the corresponding first signal intensity; generating a first terminal list based on the first terminal information and the corresponding first signal strength; after the silence period is over, the first terminal list is sent to the access controller, so that the access controller determines a target terminal according to the first terminal list and a second terminal list sent by a second radio frequency access point which works normally, determines a terminal to be removed according to the first signal strength and the second signal strength of the target terminal, and removes the terminal to be removed from the second radio frequency access point. After the silence of the partial radio frequency access point is recovered, the access controller is enabled to screen the same target terminals in the terminals accessed by the non-silence radio frequency access point and the silence radio frequency access point, and determine the terminals to be removed in the target terminals according to the signal intensity of the target terminals in different radio frequency access points, and kick the terminals to be removed of the non-silence radio frequency access point away from the access point, so that the whole wireless network can reach a terminal equilibrium state quickly after the silence of the partial radio frequency is recovered, and the robustness of the network is maintained.
Optionally, the recording the first terminal information of the monitored terminal and the corresponding first signal strength in the silence period includes:
judging whether the monitored signal intensity of the current terminal is larger than a preset signal intensity, wherein the preset signal intensity is the lowest signal intensity of the first radio frequency access point;
and when the signal intensity of the current terminal is larger than the preset signal intensity, recording the current terminal and the corresponding current signal intensity.
According to the wireless local area network load management method provided by the embodiment of the invention, the first radio frequency access point in the silent period eliminates the terminal which cannot be connected to the radio frequency access point by judging whether the signal intensity of the monitored terminal is greater than the lowest signal intensity of the radio frequency access point, so that the situation that the terminal cannot be connected to a new radio frequency access point to obtain service after being removed by the second radio frequency access point is avoided.
Optionally, the recording the first terminal information of the monitored terminal and the corresponding first signal strength in the silence period includes:
when a plurality of terminals with preset numbers are monitored, one or more terminals and the corresponding signal strengths thereof are screened from the plurality of terminals with preset numbers according to the signal strengths corresponding to the terminals to record.
According to the wireless local area network load management method provided by the embodiment of the invention, the first radio frequency access point with the silent period screens the monitored terminal according to the monitoring sequence and the signal intensity of the monitored terminal, so that the calculated amount of the access controller can be reduced, the load balancing time of the whole wireless network is further shortened, and the terminal to be removed can be further ensured to obtain better service through screening according to the signal intensity.
According to a third aspect, an embodiment of the present invention provides a wireless local area network load management device, applied to an access controller, the device including:
the receiving module is used for receiving a first terminal list sent by a first radio frequency access point, wherein the first terminal list comprises first terminal information of terminals monitored by the first radio frequency access point in a silent period and corresponding first signal intensity thereof, and receiving a second terminal list sent by a second radio frequency access point which works normally, and the second terminal list comprises second terminal information of terminals accessed by the second radio frequency access point and corresponding second signal intensity thereof;
a first processing module, configured to determine a target terminal based on the first terminal information and the second terminal information, where the target terminal is a terminal that includes both the first terminal information and the second terminal information;
The second processing module is used for determining a terminal to be removed in the target terminal based on the first signal strength and the second signal strength of the target terminal;
and the third processing module is used for removing the terminal to be removed from the second radio frequency access point.
According to the wireless local area network load management device provided by the embodiment of the invention, after the silence recovery of part of the radio frequency access points, the same target terminals in the terminals accessed by the non-silence radio frequency access points and the terminals monitored by the silence radio frequency access points are screened, the terminals to be removed in the target terminals are determined according to the signal intensity of the target terminals in different radio frequency access points, and the terminals to be removed of the non-silence radio frequency access points are kicked off from the access points, so that the whole wireless network can be ensured to quickly reach a terminal equilibrium state after the silence recovery of part of the radio frequency, and the robustness of the network is maintained.
According to a fourth aspect, an embodiment of the present invention provides a wireless local area network load management device applied to a first radio frequency access point having a quiet period, the device including:
the recording module is used for recording the first terminal information of the monitored terminal in the silent period and the corresponding first signal intensity;
A fourth processing module, configured to generate a first terminal list based on the first terminal information and the corresponding first signal strength thereof;
a fifth processing module, configured to send the first terminal list to an access controller after the quiet period ends, so that the access controller determines a target terminal according to the first terminal list and a second terminal list sent by a second radio frequency access point that works normally, determines a terminal to be removed according to a first signal strength and a second signal strength of the target terminal, and removes the terminal to be removed from the second radio frequency access point; the second terminal list includes second terminal information of the terminal accessed by the second radio frequency access point and corresponding second signal strength, and the target terminal is a terminal included in both the first terminal information and the second terminal information.
After the silence of a part of radio frequency access points is recovered, the wireless local area network load management device provided by the embodiment of the invention sends the terminal monitored in the silence period and the corresponding signal intensity information to the access controller, so that the access controller screens the same target terminal in the terminals accessed by the non-silence radio frequency access points as the terminal monitored by the silence radio frequency access points, determines the terminal to be removed in the target terminal according to the signal intensity of the target terminal in different radio frequency access points, kicks the terminal to be removed of the non-silence radio frequency access points from the access point, thereby ensuring that the whole wireless network can quickly reach the terminal equilibrium state after the silence of the part of radio frequency is recovered, and keeping the robustness of the network.
According to a fifth aspect, an embodiment of the present invention provides a wireless local area network load management system, including: an access controller, a first radio frequency access point with a silent period and at least one second radio frequency access point working normally, wherein,
the first radio frequency access point records first terminal information of the monitored terminal in the silent period and corresponding first signal intensity; generating a first terminal list based on the first terminal information and the corresponding first signal strength, and after the silence period is over, sending the first terminal list to the access controller, wherein the first terminal list comprises: the first terminal information and the corresponding first signal intensity;
the second radio frequency access point which normally works sends a second terminal list to the access controller, wherein the second terminal list comprises second terminal information of terminals accessed by the second radio frequency access point and corresponding second signal intensity;
the access controller receives the first terminal list sent by the first radio frequency access point and receives the second terminal list sent by the second radio frequency access point; determining a target terminal based on the first terminal information and the second terminal information, wherein the target terminal is a terminal included in both the first terminal information and the second terminal information; determining a terminal to be removed in the target terminals based on the first signal strength and the second signal strength of the target terminals; and removing the terminal to be removed from the second radio frequency access point.
After the silence of a part of radio frequency access points is recovered, the wireless local area network load management system provided by the embodiment of the invention sends the terminal monitored in the silence period and the corresponding signal intensity information to the access controller, and the access controller determines the terminal to be removed in the target terminal according to the signal intensity of the target terminal in different radio frequency access points by screening the target terminal which is the same as the terminal monitored by the silence radio frequency access points and is accessed in the non-silence radio frequency access points, so that the whole wireless network can quickly reach the terminal equilibrium state after the silence of the part of radio frequency is recovered, and the robustness of the network is maintained.
According to a sixth aspect, an embodiment of the present invention provides an electronic device, including: the system comprises a memory and a processor, wherein the memory and the processor are in communication connection, the memory stores computer instructions, and the processor executes the computer instructions, thereby executing the method in the first aspect, the second aspect or any optional implementation manner thereof.
According to a seventh aspect, embodiments of the present invention provide a computer readable storage medium storing computer instructions for causing a computer to perform the method of the first aspect, the second aspect or any one of its alternative embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a wireless local area network load management method at an access controller side according to an embodiment of the present invention;
fig. 2 is another flowchart of a wireless local area network load management method at an access controller side according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for managing a wireless lan load on a first radio access point side according to an embodiment of the present invention;
fig. 4 is a flowchart of another method for managing a wireless lan load on a first radio access point side according to an embodiment of the invention;
fig. 5 is an interaction schematic diagram of a wlan load management system according to an embodiment of the present invention;
fig. 6 is a networking schematic diagram of a wlan according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a wlan load management device at an access controller side according to an embodiment of the present invention;
Fig. 8 is a schematic structural diagram of a wlan load management device at a first radio access point according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The technical features of the different embodiments of the invention described below may be combined with one another as long as they do not conflict with one another.
If the 5G radio frequency is in a radar channel, there is a silence period at the beginning of channel selection. During the radio silence period, the terminal needs to connect to the radio frequency or 2G radio frequency of other non-radar channels. After the radio frequency silence time of the radar channel is finished, load balancing management is performed through load calculation of flow and user number in the prior art, and the calculation efficiency is greatly reduced due to the large number of access terminals in the whole network, so that the whole network needs a long time to reach a load balancing state.
Based on the technical problems, the embodiment of the invention provides a wireless local area network load management method, which is used for screening the same target terminals in terminals accessed by non-silent radio frequency access points and the terminals monitored by the silent radio frequency access points, determining the terminals to be removed in the target terminals according to the signal intensity of the target terminals in different radio frequency access points, and kicking the terminals to be removed of the non-silent radio frequency access points from the access points so as to ensure that the whole wireless network can quickly reach a terminal equilibrium state after partial radio frequency silence is recovered and keep the robustness of the network.
Fig. 1 shows a flowchart of a method for managing a wireless lan load according to an embodiment of the present invention. The method is applied to an Access Controller (AC) in a wireless network, and the AC is used for controlling and managing all Access Points (APs) in a WLAN, providing authentication services for wireless users by interacting information with an authentication server, and the like. As shown in fig. 1, the method comprises the steps of:
s101: and receiving a first terminal list sent by the first radio frequency access point and a second terminal list sent by a second radio frequency access point which works normally.
The first terminal list comprises first terminal information of terminals which are monitored by the first radio frequency access point in the silent period and corresponding first signal intensity, and the second terminal list comprises second terminal information of terminals which are accessed by the second radio frequency access point and corresponding second signal intensity. Illustratively, for example, a 5G rf access point operating on a radar channel, the 5G rf of the second rf access point is enabled to operate on a non-radar channel while being in a silence state (1 min or 10 min) due to operation on the radar channel. The first signal strength is active scanning information of the terminal equipment in a radiation range of the first radio frequency access point monitored by the first radio frequency access point in a silent period, and the active scanning information is signal strength corresponding to the signal strength of the terminal scanned by the first radio frequency access point. The second signal strength is the signal strength corresponding to the terminal equipment accessing the second radio frequency access point.
S102: the target terminal is determined based on the first terminal information and the second terminal information.
The target terminal is a terminal which is included in both the first terminal information and the second terminal information, namely the target terminal is a terminal which is accessed at the second radio frequency access point and is monitored in the quiet period of the first radio frequency access point.
S103: and determining the terminal to be removed in the target terminals based on the first signal strength and the second signal strength of the target terminals.
The signal strength of the target terminal at the two radio frequency access points is used as a screening basis of the terminal to be removed.
S104: the terminal to be removed is removed from the second radio frequency access point.
Specifically, the terminal to be removed is kicked off from the second radio frequency access point by the AC, so that the terminal to be removed reselects the radio frequency access point to access, and illustratively, the terminal to be removed selects the first radio frequency access point to access the network by comparing the signal strengths of the APs in the WLAN.
Through the steps S101 to S104, after the silence recovery of the partial radio frequency access point, the wireless local area network load management method provided by the embodiment of the invention screens the same target terminals as the silence radio frequency access point in the terminals accessed by the non-silence radio frequency access point and determines the terminals to be removed in the target terminals according to the signal intensity of the target terminals in different radio frequency access points, and kicks the terminals to be removed of the non-silence radio frequency access point away from the access point, so that the whole wireless network can quickly reach the terminal equilibrium state after the silence recovery of the partial radio frequency, and the robustness of the network is maintained.
Specifically, in one embodiment, as shown in fig. 2, the step S103 specifically includes the following steps:
Step S21: judging whether the first signal intensity of the target terminal is larger than the second signal intensity;
step S22: and when the first signal strength of the target terminal is greater than the second signal strength, determining the target terminal as the terminal to be removed.
According to the wireless local area network load management method provided by the embodiment of the invention, the access controller determines the target terminal with small second signal strength as the terminal to be removed by comparing the first signal strength and the second signal strength of the target terminal, so that better service can be provided by connecting the terminal to a new radio frequency access point after the terminal is kicked off, and the situation that the terminal is kicked off and is repeatedly connected to the kicked-off radio frequency connection point because the signal is too weak and cannot be connected to the new radio frequency access point is avoided, and the load balance of the wireless network is influenced.
Specifically, in an embodiment, as shown in fig. 2, before executing the step S104, the method for managing a wireless local area network load according to the embodiment of the present invention further includes the following steps:
s105: and acquiring the number of the terminals to be removed corresponding to the second radio frequency access point.
The number of the terminals to be removed is calculated by the AC according to the load balancing requirement of the WLAN, and the number of the terminals to be removed, which need to be removed, of the second radio frequency access point to meet the load balancing condition. For example, assuming that the number of current access terminals of the second radio frequency access point is M, the maximum value of the number of connection terminals to satisfy the load balancing condition is N, the number of terminals to be removed is M-N. Particularly, if the number of the second radio frequency access points currently accessed by the second radio frequency access points is calculated to meet the load balancing condition, terminal removal operation on the second radio frequency access points is not needed, and therefore uninterrupted service of the terminals is guaranteed.
S106: and sequencing the terminals to be removed based on the first signal strength of the terminals to be removed, and determining a list of the terminals to be removed.
S107: and sequentially screening the terminals to be removed from the terminal list to be removed based on the number of the terminals to be removed.
Specifically, in an embodiment, before executing the step S107, the method for managing a wireless local area network load according to the embodiment of the present invention further includes the following steps:
s108: judging whether the number of the terminals to be removed is smaller than the number of the terminals to be removed in the terminal list to be removed; when the number of terminals to be removed is smaller than the number of terminals to be removed in the terminal to be removed list, step S107 is performed. When the number of the terminals to be removed is greater than or equal to the number of the terminals to be removed in the terminal list to be removed, the access controller performs screening of the terminals to be removed according to other principles, which do not belong to the consideration scope of the present invention, and will not be described in detail herein.
According to the wireless local area network load management method provided by the embodiment of the invention, the access controller sorts the terminals to be removed by utilizing the first signal strength, screens out the terminals to be removed which meet the number requirement of the terminals to be removed, and removes the terminals to be removed, so that the terminals after removal can be guaranteed to obtain better services.
Fig. 3 is a flowchart of another method for wireless lan load management according to an embodiment of the present invention. The method is applied to a first radio frequency access point in a wireless network that is in a radar channel with a quiet period, and has a quiet period at the beginning of channel selection. As shown in fig. 3, the method comprises the steps of:
step S301: first terminal information of the terminal monitored in the silence period and corresponding first signal strength are recorded.
The first radio frequency access point is a 5G radio frequency access point operating on a radar channel, and is in a silence state (1 min or 10 min) due to the operation on the radar channel after the 5G radio frequency is enabled. The first signal strength is active scanning information of the terminal equipment in a radiation range of the first radio frequency access point monitored by the first radio frequency access point in a silent period, and the active scanning information is signal strength corresponding to the signal strength of the terminal scanned by the first radio frequency access point.
Step S302: a first terminal list is generated based on the first terminal information and its corresponding first signal strength.
Specifically, a terminal list is constructed according to all terminal devices and signal strengths corresponding to the terminal devices in a radiation range of the first radio frequency access point monitored by the first radio frequency access point in a silent period.
Step S303: after the silence period is over, the first terminal list is sent to the access controller, so that the access controller determines a target terminal according to the first terminal list and a second terminal list sent by a second radio frequency access point which works normally, determines a terminal to be removed according to the first signal strength and the second signal strength of the target terminal, and removes the terminal to be removed from the second radio frequency access point; the second terminal list comprises second terminal information of terminals accessed by the second radio frequency access point and corresponding second signal intensity, and the target terminal is a terminal comprising the first terminal information and the second terminal information.
Wherein the 5G radio frequency of the second radio frequency access point operates on a non-radar channel.
After the silence of a part of radio frequency access points is recovered, the wireless local area network load management method provided by the embodiment of the invention sends the terminal monitored in the silence period and the corresponding signal intensity information to the access controller, so that the access controller screens the same target terminal in the terminals accessed by the non-silence radio frequency access points as the terminal monitored by the silence radio frequency access points, determines the terminal to be removed in the target terminal according to the signal intensity of the target terminal in different radio frequency access points, kicks off the terminal to be removed of the non-silence radio frequency access points from the access point, thereby ensuring that the whole wireless network can quickly reach the terminal equilibrium state after the silence of the part of radio frequency is recovered, and keeping the robustness of the network.
Specifically, in one embodiment, as shown in fig. 4, the step S301 specifically includes the following steps:
step S41: and judging whether the monitored signal intensity of the current terminal is larger than a preset signal intensity.
The preset signal strength is the lowest signal strength of the access first radio frequency access point, and the preset signal strength can be set according to the service quality requirement of the terminal, and can also be determined by the signal strength of the history access terminal of the healthy first radio frequency access point, which is not limited in the invention.
Step S42: when the signal intensity of the current terminal is larger than the preset signal intensity, recording the current terminal and the corresponding current signal intensity.
According to the wireless local area network load management method provided by the embodiment of the invention, the first radio frequency access point in the silent period eliminates the terminal which cannot be connected to the radio frequency access point by judging whether the signal intensity of the monitored terminal is greater than the lowest signal intensity of the radio frequency access point, so that the situation that the terminal cannot be connected to a new radio frequency access point to obtain service after being removed by the second radio frequency access point is avoided.
Specifically, taking the listening sequence and the signal strength as an example, the step S42 specifically groups the monitored terminals based on the listening sequence; a first terminal and corresponding first signal strength are determined among the groups of terminals based on the signal strengths.
Specifically, in another alternative embodiment, the step S301 specifically includes: when a plurality of terminals with preset numbers are monitored, one or more terminals and the corresponding signal strengths thereof are screened from the plurality of terminals with preset numbers according to the signal strengths corresponding to the terminals to record.
Specifically, in order to reduce the calculation pressure of the access controller and consider the network service quality of the terminal, the monitored terminal is screened, and an alternative mode is adopted, that is, if the scanning information of N terminals is monitored, only N/2 terminals are recorded. The screening principle may be to perform screening according to a recording sequence, for example, recording a monitored terminal, discarding a next monitored terminal, or recording only half of the strongest signal intensity in the monitored terminal, or performing screening by combining the monitoring sequence and the signal intensity, for example: and if N terminals are monitored continuously, selecting M terminals with the strongest signal strength from the N terminals for recording, wherein M is less than or equal to N. It should be noted that the embodiment of the present invention is only illustrated in the two-in-one mode, and in practical application, the embodiment of the present invention may be three-in-one, five-in-three, or more-in-one or more-in-more modes, which is not limited to this.
According to the wireless local area network load management method provided by the embodiment of the invention, the first radio frequency access point with the silent period screens the monitored terminal according to the monitoring sequence and the signal intensity of the monitored terminal, so that the calculated amount of the access controller can be reduced, the load balancing time of the whole wireless network is further shortened, and the terminal to be removed can be further ensured to obtain better service through screening according to the signal intensity.
Fig. 5 shows a schematic structural diagram of a wlan load management system according to an embodiment of the present invention. The system can realize the scheme provided by any wireless local area network load management method embodiment. As shown in fig. 5, the system includes:
an access controller 501, a first radio frequency access point 502 in which a quiet period exists, and at least a second radio frequency access point 503 that is operating properly, wherein,
the first radio frequency access point 502 records first terminal information of the terminal monitored in the silence period and corresponding first signal intensity; based on the first terminal information and the corresponding first signal strength, a first terminal list is generated, and after the silence period is over, the first terminal list is sent to the access controller 501, where the first terminal list includes: the first terminal information and the corresponding first signal intensity;
The second radio frequency access point 503 that works normally sends a second terminal list to the access controller 501, where the second terminal list includes second terminal information of terminals accessed by the second radio frequency access point and corresponding second signal strengths thereof;
the access controller 501 receives a first terminal list sent by the first radio frequency access point 502 and receives a second terminal list sent by the second radio frequency access point 503; determining a target terminal based on the first terminal information and the second terminal information, wherein the target terminal is a terminal included in both the first terminal information and the second terminal information; determining a terminal to be removed in the target terminal based on the first signal strength and the second signal strength of the target terminal; the terminal to be removed is removed from the second radio frequency access point.
Specifically, the specific operation of the access controller 501 and the first radio frequency access point 502 with the quiet period refer to the related description of the above method embodiments, which is not described in detail.
Through the cooperation of the above components, after the silence recovery of a part of radio frequency access points, the wireless local area network load management system provided by the embodiment of the invention sends the terminal monitored in the silence period and the corresponding signal intensity information to the access controller, and the access controller screens the same target terminal of the terminal accessed in the non-silence radio frequency access points as the terminal monitored by the silence radio frequency access points, determines the terminal to be removed in the target terminal according to the signal intensity of the target terminal in different radio frequency access points, and kicks the terminal to be removed of the non-silence radio frequency access points away from the access point, so that the whole wireless network can quickly reach a terminal equilibrium state after the silence recovery of the part of radio frequency, and the robustness of the network is maintained.
The working process of the wireless local area network load management system provided by the embodiment of the invention will be described in detail below with reference to specific application examples.
The networking mode of the WLAN is as follows: as shown in fig. 6, assuming that the 5G radio frequency at AP2 is in the radar channel, all terminals are connected to the 5G radio frequency of AP1 during the quiet period; in the 5G radio frequency silence period of the AP2, the wireless communication system is also in continuous monitoring of an air interface, and all detected scanning terminals record the MAC address and the signal strength RSSI of the scanning terminals; after the silence is finished, the AP2 uploads a record table to the AC, and the AC combines the terminal list of the AP1 and the record list of the AP2, selects a terminal that the AP1 needs to kick off, and performs load balancing.
The specific scheme is as follows:
1. as networking above, the entire network includes a plurality of APs: AP1, AP2— APN, there are multiple terminals in the whole network: CLIENT1, CLIENT2, up to CLIENT n;
2. for simplifying the processing, taking AP1 and AP2 as examples, it is assumed that all radio frequencies of AP1 and AP2 form a load balancing group, and that after the 5G radio frequency of AP2 is enabled, it is in a silence state (1 min or 10 min) due to operating in a radar channel; the 5G radio frequency of AP1 operates on a non-radar channel.
3. During the 5G radio silence period of AP2, all terminals are connected to the radio frequency of AP 1. All terminals need to go through a scanning state before connection, namely accessible networks are searched through scanning, and at present, almost all terminals use two scanning modes of active and passive at the same time, so that the radio frequency of the AP2 in a silent state can monitor active scanning information of terminals around the terminals, and proper terminal information is recorded through a certain deletion rule.
4. Deleting the rule: recording the lowest signal intensity of the terminal connected to the AP2 as R0, if the signal intensity R1 of the monitored scanning information of the terminal is less than R0, not recording; otherwise record: terminal 1 [ MAC1-R1 ], terminal 2 [ MAC2-R2 ]; a mode of 1-out-of-2 is adopted, i.e. if the scanning information of N terminals is monitored in total, only N/2 terminals are recorded. The recording method is as follows: (1) recording MAC1 (2) and then detecting MAC2, if R2 is more than R1, replacing MAC1 by MAC2, if R2 is less than R1, keeping unchanged, still recording MAC1, discarding MAC2 (3), and detecting MAC3, and recording; (4) Detecting MAC4, comparing with MAC3, and the method is the same as (2); and (5) and so on.
5. After the radio frequency of the AP2 is silent, the AP2 can send the terminal information recorded by the AP2 to the AC, and the AC receives the information and then sorts the information according to the size of R1/R2/R3/…;
6. at this time, the AC calculates according to the load balancing rule that the AP1 should kick off M terminals, where the AP1 has connected a plurality of terminals, the terminal list is MAC1/MAC2/MAC3 …, and the AC compares the ordered terminal list of the AP2 with the terminal list of the AP1 to find out the terminal that the AP1 needs to kick off, and performs the action of kicking off the terminal. The basis of the AC selection is as follows.
7. AC selection basis: (1) the terminals exist in the terminal lists of both the AP1 and the AP 2; (2) The signal R of the terminal on AP1 is weaker (lower than a certain preset value), while the signal R on the list of AP2 is better (ordered in step 6); (3) executing the AP1 terminal kick-out action.
8. If the AC calculates that the AP1 should kick off M terminals, and the terminal list of the AP2 has M0 terminals, if M0 is less than M, the AC selects a proper terminal to kick off according to other principles, and the method is not in the consideration range of the scheme.
By the scheme, the terminal equilibrium state can be quickly reached after part of radio frequency is silent, and the robustness of the network is maintained; the AC calculates that the terminals which should be kicked off are all in accordance with reality through the scheme, and the terminals are connected to a new AP after being kicked off, so that better service can be provided; the situation that the terminal is kicked off and cannot be connected to the AP2 due to the fact that the signal is too weak and is repeatedly connected to the AP1 can not occur; the silent AP only records half of the detected terminals, so that the calculated amount of the AC can be reduced, the method is more practical, and the equalization time of the whole network can be greatly reduced.
Fig. 7 is a schematic structural diagram of a wlan load management device according to an embodiment of the present invention. The device is applied to an access control controller in a wireless network. As shown in fig. 7, the apparatus includes:
The receiving module 71 is configured to receive a first terminal list sent by a first radio frequency access point, where the first terminal list includes first terminal information of a terminal that the first radio frequency access point monitors in a quiet period and a corresponding first signal strength thereof, and receive a second terminal list sent by a second radio frequency access point that works normally, where the second terminal list includes second terminal information of a terminal that the second radio frequency access point accesses and a corresponding second signal strength thereof. The detailed description refers to the corresponding related description of the above method embodiments, and will not be repeated here.
The first processing module 72 is configured to determine a target terminal based on the first terminal information and the second terminal information, where the target terminal is a terminal included in both the first terminal information and the second terminal information. The detailed description refers to the corresponding related description of the above method embodiments, and will not be repeated here.
The second processing module 73 is configured to determine a terminal to be removed from the target terminals based on the first signal strength and the second signal strength of the target terminals. The detailed description refers to the corresponding related description of the above method embodiments, and will not be repeated here.
A third processing module 74 for removing the terminal to be removed from the second radio frequency access point. The detailed description refers to the corresponding related description of the above method embodiments, and will not be repeated here.
Further functional descriptions of the above modules are the same as those of the above corresponding embodiments, and are not repeated here.
According to the wireless local area network load management device provided by the embodiment of the invention, after the silence recovery of part of the radio frequency access points, the same target terminals in the terminals accessed by the non-silence radio frequency access points and the terminals monitored by the silence radio frequency access points are screened, the terminals to be removed in the target terminals are determined according to the signal intensity of the target terminals in different radio frequency access points, and the terminals to be removed of the non-silence radio frequency access points are kicked off from the access points, so that the whole wireless network can be ensured to quickly reach a terminal equilibrium state after the silence recovery of part of the radio frequency, and the robustness of the network is maintained.
Fig. 8 is a schematic structural diagram of another wlan load management device according to an embodiment of the present invention. The apparatus is applied to a first radio frequency access point in a wireless network that has a quiet period. As shown in fig. 8, the apparatus includes:
the recording module 81 is configured to record the first terminal information of the terminal monitored in the silence period and the corresponding first signal strength. The detailed description refers to the corresponding related description of the above method embodiments, and will not be repeated here.
The fourth processing module 82 is configured to generate a first terminal list based on the first terminal information and the corresponding first signal strength. The detailed description refers to the corresponding related description of the above method embodiments, and will not be repeated here.
A fifth processing module 83, configured to send the first terminal list to the access controller after the quiet period ends, so that the access controller determines a target terminal according to the first terminal list and a second terminal list sent by a second radio frequency access point that works normally, determines a terminal to be removed according to a first signal strength and a second signal strength of the target terminal, and removes the terminal to be removed from the second radio frequency access point; the second terminal list comprises second terminal information of terminals accessed by the second radio frequency access point and corresponding second signal intensity, and the target terminal is a terminal comprising the first terminal information and the second terminal information. The detailed description refers to the corresponding related description of the above method embodiments, and will not be repeated here.
Further functional descriptions of the above modules are the same as those of the above corresponding embodiments, and are not repeated here.
After the silence of a part of radio frequency access points is recovered, the wireless local area network load management device provided by the embodiment of the invention sends the terminal monitored in the silence period and the corresponding signal intensity information to the access controller, so that the access controller screens the same target terminal in the terminals accessed by the non-silence radio frequency access points as the terminal monitored by the silence radio frequency access points, determines the terminal to be removed in the target terminal according to the signal intensity of the target terminal in different radio frequency access points, kicks the terminal to be removed of the non-silence radio frequency access points from the access point, thereby ensuring that the whole wireless network can quickly reach the terminal equilibrium state after the silence of the part of radio frequency is recovered, and keeping the robustness of the network.
Fig. 9 illustrates an electronic device according to an embodiment of the present invention, which may include a processor 901 and a memory 902, as shown in fig. 9, where the processor 901 and the memory 902 may be connected via a bus or otherwise, as exemplified by the bus connection in fig. 9.
The processor 901 may be a central processing unit (Central Processing Unit, CPU). The processor 901 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory 902 is used as a non-transitory computer readable storage medium for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the methods provided in the embodiments of the present invention. The processor 901 executes various functional applications of the processor and data processing, i.e., implements the methods in the above-described method embodiments, by running non-transitory software programs, instructions, and modules stored in the memory 902.
The memory 902 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created by the processor 901, and the like. In addition, the memory 902 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 902 optionally includes memory remotely located relative to processor 901, which may be connected to processor 901 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more modules are stored in the memory 902 that, when executed by the processor 901, perform the methods of the method embodiments described above.
The specific details of the electronic device may be correspondingly understood by referring to the corresponding related descriptions and effects in the above method embodiments, which are not repeated herein.
It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment method may be implemented by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium, and the program may include the above-described embodiment method when executed. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations are within the scope of the invention as defined by the appended claims.
Claims (10)
1. A wireless local area network load management method applied to an access controller, the method comprising:
receiving a first terminal list sent by a first radio frequency access point, wherein the first terminal list comprises first terminal information of a terminal which is monitored by the first radio frequency access point in a silent period and corresponding first signal intensity, and receiving a second terminal list sent by a second radio frequency access point which works normally, and the second terminal list comprises second terminal information of a terminal which is accessed by the second radio frequency access point and corresponding second signal intensity;
determining a target terminal based on the first terminal information and the second terminal information, wherein the target terminal is a terminal included in both the first terminal information and the second terminal information;
determining a terminal to be removed in the target terminals based on the first signal strength and the second signal strength of the target terminals;
And removing the terminal to be removed from the second radio frequency access point.
2. The method of claim 1, wherein the determining a terminal of the target terminals to be removed based on the first signal strength and the second signal strength of the target terminals comprises:
judging whether the first signal intensity of the target terminal is larger than the second signal intensity;
and when the first signal strength of the target terminal is greater than the second signal strength, determining the target terminal as a terminal to be removed.
3. The method of claim 1, wherein prior to said removing the terminal to be removed from the second radio frequency access point, the method further comprises:
acquiring the number of terminals to be removed corresponding to the second radio frequency access point;
sorting the terminals to be removed based on the first signal strength of the terminals to be removed, and determining a list of the terminals to be removed;
and sequentially screening the terminals to be removed from the terminal list to be removed based on the number of the terminals to be removed.
4. A method according to claim 3, wherein before the sequentially screening out terminals to be removed from the list of terminals to be removed based on the number of terminals to be removed, the method further comprises:
Judging whether the number of the terminals to be removed is smaller than the number of the terminals to be removed in the terminal list to be removed;
and when the number of the terminals to be removed is smaller than the number of the terminals to be removed in the terminal list to be removed, sequentially screening the terminals to be removed from the terminal list to be removed based on the number of the terminals to be removed.
5. A wireless local area network load management method applied to a first radio frequency access point having a quiet period, the method comprising:
recording first terminal information of a terminal monitored in a silent period and corresponding first signal intensity;
generating a first terminal list based on the first terminal information and the corresponding first signal strength;
after the silence period is over, the first terminal list is sent to an access controller, so that the access controller determines a target terminal according to the first terminal list and a second terminal list sent by a second radio frequency access point which works normally, determines a terminal to be removed according to the first signal strength and the second signal strength of the target terminal, and removes the terminal to be removed from the second radio frequency access point; the second terminal list includes second terminal information of the terminal accessed by the second radio frequency access point and corresponding second signal strength, and the target terminal is a terminal included in both the first terminal information and the second terminal information.
6. The method of claim 5, wherein the recording the first terminal information and corresponding first signal strengths of the terminals monitored during the quiet period comprises:
judging whether the monitored signal intensity of the current terminal is larger than a preset signal intensity, wherein the preset signal intensity is the lowest signal intensity of the first radio frequency access point;
and when the signal intensity of the current terminal is larger than the preset signal intensity, recording the current terminal and the corresponding current signal intensity.
7. The method of claim 5, wherein the recording the first terminal information and corresponding first signal strengths of the terminals monitored during the quiet period comprises:
when a plurality of terminals with preset numbers are monitored, one or more terminals and the corresponding signal strengths thereof are screened from the plurality of terminals with preset numbers according to the signal strengths corresponding to the terminals to record.
8. A wireless local area network load management apparatus for use in an access controller, the apparatus comprising:
the receiving module is used for receiving a first terminal list sent by a first radio frequency access point, wherein the first terminal list comprises first terminal information of terminals monitored by the first radio frequency access point in a silent period and corresponding first signal intensity thereof, and receiving a second terminal list sent by a second radio frequency access point which works normally, and the second terminal list comprises second terminal information of terminals accessed by the second radio frequency access point and corresponding second signal intensity thereof;
A first processing module, configured to determine a target terminal based on the first terminal information and the second terminal information, where the target terminal is a terminal that includes both the first terminal information and the second terminal information;
the second processing module is used for determining a terminal to be removed in the target terminal based on the first signal strength and the second signal strength of the target terminal;
and the third processing module is used for removing the terminal to be removed from the second radio frequency access point.
9. A wireless local area network load management apparatus for use with a first radio frequency access point having a quiet period, the apparatus comprising:
the recording module is used for recording the first terminal information of the monitored terminal in the silent period and the corresponding first signal intensity;
a fourth processing module, configured to generate a first terminal list based on the first terminal information and the corresponding first signal strength thereof;
a fifth processing module, configured to send the first terminal list to an access controller after the quiet period ends, so that the access controller determines a target terminal according to the first terminal list and a second terminal list sent by a second radio frequency access point that works normally, determines a terminal to be removed according to a first signal strength and a second signal strength of the target terminal, and removes the terminal to be removed from the second radio frequency access point; the second terminal list includes second terminal information of the terminal accessed by the second radio frequency access point and corresponding second signal strength, and the target terminal is a terminal included in both the first terminal information and the second terminal information.
10. A wireless local area network load management system, comprising: an access controller, a first radio frequency access point with a silent period and at least one second radio frequency access point working normally, wherein,
the first radio frequency access point records first terminal information of the monitored terminal in the silent period and corresponding first signal intensity; generating a first terminal list based on the first terminal information and the corresponding first signal strength, and after the silence period is over, sending the first terminal list to the access controller, wherein the first terminal list comprises: the first terminal information and the corresponding first signal intensity;
the second radio frequency access point which normally works sends a second terminal list to the access controller, wherein the second terminal list comprises second terminal information of terminals accessed by the second radio frequency access point and corresponding second signal intensity;
the access controller receives the first terminal list sent by the first radio frequency access point and receives the second terminal list sent by the second radio frequency access point; determining a target terminal based on the first terminal information and the second terminal information, wherein the target terminal is a terminal included in both the first terminal information and the second terminal information; determining a terminal to be removed in the target terminals based on the first signal strength and the second signal strength of the target terminals; and removing the terminal to be removed from the second radio frequency access point.
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