CN109246760A - WLAN load-balancing method and wireless access device, radio reception device based on power control - Google Patents
WLAN load-balancing method and wireless access device, radio reception device based on power control Download PDFInfo
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- CN109246760A CN109246760A CN201811055240.6A CN201811055240A CN109246760A CN 109246760 A CN109246760 A CN 109246760A CN 201811055240 A CN201811055240 A CN 201811055240A CN 109246760 A CN109246760 A CN 109246760A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005562 fading Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 6
- 241000406668 Loxodonta cyclotis Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 description 1
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- 201000001098 delayed sleep phase syndrome Diseases 0.000 description 1
- 208000033921 delayed sleep phase type circadian rhythm sleep disease Diseases 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
Abstract
The present invention relates to a kind of WLAN load-balancing method and wireless access device, radio reception device based on power control.WLAN load-balancing method based on power control includes the following steps: that the load level for the load balancing object for obtaining current radio reception device, load balancing object are that other receive the radio reception device for seeking request in WLAN；If current radio reception device is the horizontal minimum radio reception device of fading channel between wireless user terminal to be accessed, and if the difference between the load level of the minimum load balancing object of the load level and load level of current radio reception device provides access service by current radio reception device less than the first given threshold for wireless user terminal to be accessed.WLAN load-balancing method of the present invention based on power control has ensured the access of wireless user terminal, improves the reliability of radio reception device access Wireless LAN connection.
Description
Technical field
The present invention relates to WLAN communication fields, negative more particularly to a kind of WLAN based on power control
Carry equalization methods, wireless access device and radio reception device.
Background technique
With the continuous growth of information service, wireless communication system is undergoing fast-developing course, higher and higher
Transmission and covering require to need broader transmission bandwidth, but the deficient of system resource needs preferably to improve resource utilization
Mode, WLAN (hereinafter referred to as WLAN) are a kind of systems that can improve cellular network covering and networking flexibility.?
In WLAN environment, each access device (hereinafter referred to as AP) may make up a basic service set (hereinafter referred to as BSS), by basic
Service set identifier (hereinafter referred to as BSSID) indicates it, and multiple BSS are extendable to extended service set (hereinafter referred to as
ESS), indicated with extended service set identification code (hereinafter referred to as ESSID), each wireless user terminal is (hereinafter referred to as
STA it) by accessing corresponding AP, accesses utilization to wireless network resource.For example, in a building, multiple access devices (with
Lower abbreviation AP) different critical positions are distributed in, STA needs to access the such access of one or more and sets to obtain service
Standby AP.Due to the randomness that STA business reaches, there is between difference and STA and AP for the processing capacity of each access device AP
Channel situation is also not quite similar, after system runs a period of time, the problem of just will appear load imbalance, it may be assumed that some accesses
There are also a large amount of business to need to distribute by equipment AP, and some access devices AP is idle.The production of above-mentioned load imbalance problem
It is raw the reason is that, traditional STA access all can select service point according to the signal strength of access device AP, this meeting is so that certain letters
Number compared with the strong or preferable access device overload of channel, cause each STA points Internet resources it is no longer fair, network efficiency
It is affected immediately, or even will cause network congestion.
In the prior art, main to be solved the above problems by load balancing control, when wireless user is whole in WLAN
It holds when inquiring after request to radio reception device AP transmission, the radio reception device in WLAN elects nothing most lightly loaded
Line access device AP is as target access device AP, but letter of this method between target access device AP and wireless user terminal
When road decaying is stronger, the reliability of access service is not ensured that, if there is no by wireless user's end by target access device AP
End detects, or even can be produced without the case where access device provides service.
Summary of the invention
Based on this, the object of the present invention is to provide a kind of WLAN load-balancing method based on power control,
It can be avoided no radio reception device and provides the possibility of access service, improves radio reception device and accesses Wireless LAN
The reliability of connection.
The present invention is achieved by the following scheme:
A kind of WLAN load-balancing method based on power control, includes the following steps:
The load level of the load balancing object of current radio reception device is obtained, the load balancing object is wireless office
Other receive the radio reception device that wireless user terminal to be accessed seeks request in the net of domain；
If current radio reception device is that fading channel is horizontal minimum between the wireless user terminal to be accessed
Radio reception device, and if the load level of current radio reception device and bearing for the minimum load balancing object of load level
The difference between level is carried less than the first given threshold, then is that the wireless user to be accessed is whole by current radio reception device
End provides access service.
WLAN load-balancing method of the present invention based on power control is accessed in wireless user terminal
When, the radio reception device for selecting channel condition best, meanwhile, by comparing the best radio reception device of the channel condition
The load level of the minimum radio reception device of load level in load level and WLAN, it is ensured that the channel condition is best
Radio reception device load level in balanced range, ensured the access of wireless user terminal, improved and wirelessly connect
Enter the reliability of equipment access Wireless LAN connection.
Further, if the load level of current radio reception device and the minimum load balancing object of load level
Difference between load level is greater than the first given threshold, and if the load level of current radio reception device is greater than water load
The load level of minimum load balancing object is put down, and current radio reception device is in minimum emissive power state, then leads to
It crosses current radio reception device and provides access service for the wireless user terminal to be accessed.
Further, further include following steps:
If current radio reception device is not in minimum emissive power state, the hair of current radio reception device is reduced
Send power.
By reducing the transmission power of current radio reception device, reduce the coverage area of the access device, to discharge portion
The load for dividing current radio reception device to be accessed, the load being released can access other access devices, save power resource
Meanwhile LAN resources are preferably utilized, realize the load balancing in local area network.
Further, further include following steps:
If the load level of current radio reception device is less than the water load of the minimum load balancing object of load level
It is flat, and current radio reception device is in maximum transmission power state, then is described to be accessed by current radio reception device
Wireless user terminal provides access service.
Further, further include following steps:
If current radio reception device is not in maximum transmission power state, the hair of current radio reception device is improved
Power is sent, and provides access service with the transmission power after improving for the wireless user terminal to be accessed.
The coverage area of the access device can be increased by improving transmission power, more fully utilize Internet resources.
Further, further include following steps after the transmission power for reducing current radio reception device:
If current radio reception device is that fading channel is horizontal minimum between the wireless user terminal to be accessed
Radio reception device then provides access service by current radio reception device for the wireless user terminal to be accessed.
If after the power for reducing current radio reception device, current radio reception device be still with it is described to be accessed wireless
The best radio reception device of channel condition between user terminal is then described to be accessed wireless by current radio reception device
User terminal provides access service.
Further, further include following steps after the transmission power for reducing current radio reception device:
If in the load balancing object of current radio reception device, the first radio reception device is and the nothing to be accessed
The horizontal minimum radio reception device of fading channel between line user terminal, then be described by first radio reception device
Wireless user terminal to be accessed provides access service.
After if current radio reception device reduced transmission power, the channel item between the wireless user terminal to be accessed
The best equipment of part is the covering model that other access devices or wireless user terminal to be accessed exit current radio reception device
It encloses, then provides access service by the best radio reception device of new channel condition for the wireless user terminal to be accessed.
Further, the load level for obtaining the load balancing object of current radio reception device, includes the following steps:
Create load balancing list object, the wireless access for detecting and broadcasting according to the wireless user terminal to be accessed
The load level of equipment, obtains the load level of the load balancing object of current radio reception device, and by the load balancing
The load level of object is stored in the load balancing list object.
Further, the present invention also provides a kind of wireless access devices, comprising: controller and storage medium, the storage
Computer program is stored on medium, when which is executed by processor realize as described in above-mentioned any one based on
The step of WLAN load-balancing method of power control.
Further, the present invention also provides a kind of radio reception devices, comprising:
Load balancing object acquisition module, the water load of the load balancing object for obtaining current radio reception device
Flat, the load balancing object receives wireless user terminal to be accessed for interior other of WLAN and seeks wirelessly connecing for request
Enter equipment；
Computing module, for being the fading channel between the wireless user terminal to be accessed in current radio reception device
Horizontal minimum radio reception device, and if the currently load level of the radio reception device load minimum with load level is equal
Weigh object load level between difference less than the first given threshold when, by current radio reception device be it is described to be accessed
Wireless user terminal provides access service.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the WLAN load-balancing method flow diagram based on power control in a kind of embodiment；
Fig. 2 is the flow diagram that the load balancing object of current radio reception device is obtained in a kind of embodiment；
Fig. 3 is the flow diagram that radio reception device increases transmission power in a kind of embodiment；
Fig. 4 is the structure of the WLAN schematic diagram in a kind of embodiment；
Fig. 5 is load balancing schematic diagram in a kind of embodiment；
Fig. 6 is the WLAN load-balancing method flow diagram based on power control in a kind of embodiment；
Fig. 7 is a kind of structural schematic diagram of wireless access device in embodiment；
Fig. 8 is a kind of structural schematic diagram of radio reception device in embodiment.
Specific embodiment
Referring to Fig. 1, in one embodiment, a kind of WLAN load balancing based on power control of the invention
Method includes the following steps:
Step S10: the load level of the load balancing object of current radio reception device, the load balancing object are obtained
For in WLAN other receive the radio reception device that wireless user terminal to be accessed seeks request.
The radio reception device is hardware device for remote access network resource, including router, multiplexer and
Modulate adjuster etc..
Including a server and multiple wireless user's ends for passing through wired connection with server in the WLAN
End, the load balancing object, for multiple radio reception devices hair when wireless user terminal to be accessed into WLAN
It send when seeking request, in addition to receiving and seeking the current radio reception device of request, other receive the wireless access for seeking request
Equipment.
The load level of the load balancing object receives the current load of radio reception device for seeking request for other
The index of situation reflects that in the present embodiment, the load level of radio reception device can be the current institute of the radio reception device
The quantity of the wireless user terminal of burden or the portfolio of the radio reception device or different QoS (Quality of
Service, service quality) desired business is converted into the quantization size of unified standard.In other embodiments, the water load
It is flat to can also be different performance parameter threshold denominators, such as packet loss, the bit error rate of different QoS business etc..In the present embodiment
In, load level is higher, then shows that the quantity for the wireless user terminal that the load balancing object is currently born is more or the nothing
The portfolio of line access device is bigger, and the access surplus which can be provided is with regard to smaller.
Wireless user terminal be user realize wireless networking required for equipment, such as mobile phone, plate, laptop,
Smartwatch, Intelligent bracelet etc..
In the present embodiment, current radio reception device can obtain the water load of load balancing object in several ways
It is flat, such as can be and obtained received by the load information and each access device of each access device by server
Solicited message is sought, above- mentioned information are sent to each access device by the server, so that current radio reception device is obtained and born
Carry the load level of balanced object；It can also be through each its own load information of access device periodic broadcasting and received
Solicited message is sought, current radio reception device passes through the above- mentioned information for receiving other access devices broadcast in WLAN,
Obtain the load level of load balancing object.
Step S20: if current radio reception device is the fading channel water between the wireless user terminal to be accessed
Put down minimum radio reception device, and if current radio reception device load level and the minimum load balancing of load level
Difference between the load level of object is then the nothing to be accessed by current radio reception device less than the first given threshold
Line user terminal provides access service.
The fading channel level is the ratio of signal strength channel decaying, if current radio reception device with it is described
Fading channel level is higher between wireless user terminal to be accessed, then current radio reception device and the wireless user to be accessed
Signal attenuation ratio between terminal is bigger, channel item between current radio reception device and the wireless user terminal to be accessed
Part is poorer, between the wireless user terminal to be accessed the horizontal minimum radio reception device of fading channel be with it is described to
Access the radio reception device that channel condition is best between wireless user terminal.
First given threshold is preset value, in the present embodiment, by comparing current radio reception device load level with
The load level of the minimum load balancing object of load level, obtains difference between the two, and difference here is absolute value, can
To be the value for the load level that the load level of current radio reception device is greater than the minimum load balancing object of load level, also
Can be current radio reception device load level be less than the minimum load balancing object of load level load level value.
Wherein, the quantity or the radio reception device for the wireless user terminal that load level is currently born for the radio reception device
Portfolio or different QoS desired business when being converted into the quantization size of unified standard, the first given threshold and load level
Type is correspondingly arranged.
If the load level of current radio reception device and the load level of the minimum load balancing object of load level
Between difference less than the first given threshold, then show the load gap between current radio reception device and load balancing object
Less, current radio reception device does not need to carry out load balancing, is the nothing to be accessed by current radio reception device therefore
Line user terminal provides access service.
WLAN load-balancing method of the present invention based on power control is accessed in wireless user terminal
When, the radio reception device for selecting channel condition best, meanwhile, by comparing the best radio reception device of the channel condition
The load level of the minimum radio reception device of load level in load level and WLAN, it is ensured that the channel condition is best
Radio reception device load level in balanced range, ensured the access of wireless user terminal, improved and wirelessly connect
Enter the reliability of equipment access Wireless LAN connection.
In one embodiment, referring to Fig. 2, obtaining the water load of the load balancing object of current radio reception device
It is flat, include the following steps:
Step S11: creation load balancing list object.
Step S12: the load information of other wireless user terminals in WLAN is obtained.
Step S13: the information for the radio reception device for detecting and broadcasting according to the wireless user terminal to be accessed obtains
The load balancing object of current radio reception device is taken, and the load level of the load balancing object is stored in the load
In balanced list object.
Wherein, the load balancing list object regularly updates, and the wireless user terminal detects radio reception device
Afterwards, the radio reception device information that will test is broadcast to corresponding radio reception device, and related radio reception device can basis
Broadcast message obtains the load balancing object of current radio reception device, and combines and set by wireless access between WLAN
The load information of standby broadcast, obtains the load information of the load balancing object of current radio reception device.
In one embodiment, further include following steps:
Step S30: if the load level of current radio reception device and the minimum load balancing object of load level
Difference between load level is greater than the first given threshold, and if the load level of current radio reception device is greater than water load
The load level of minimum load balancing object is put down, and current radio reception device is in minimum emissive power state, then leads to
It crosses current radio reception device and provides access service for the wireless user terminal to be accessed.
The power of the radio reception device is the transmission power of radio reception device, the transmission power of radio reception device
Bigger, then the coverage area of the radio reception device is bigger.Current radio reception device is in minimum emissive power state, that is, works as
Preceding radio reception device has been in the smallest coverage area, therefore, even if the load and load balancing of current radio reception device
Object can not also discharge load, therefore by current wireless access compared to larger by reducing the power of the radio reception device
Equipment provides access service for the wireless user terminal to be accessed.
In one embodiment, further include following steps:
Step S40: if current radio reception device is not in minimum emissive power state, current wireless access is reduced
The transmission power of equipment.
If the load level of current radio reception device is greater than, load level in load balancing object is minimum wirelessly to be connect
The value for entering equipment is more than the first given threshold, and current access device is not in minimum emissive power state, then can pass through drop
The transmission power of low current access device reduces the coverage area of current access device, to discharge fractional load, reduces negative
It carries horizontal, wherein this step can repeatedly recycle progress.
Radio reception device in the present embodiment uses discrete power series to work as transmission power, described discrete
Power train is classified as some discrete numerical value set, such as can be { 7,13,15,19 } dBm, wherein minimum emissive power is
7dBm, maximum transmission power 19dBm.In other embodiments, radio reception device can also use continuous transmission power
It works.In the present embodiment, the transmission power of current access device is reduced i.e. by transmission power from a higher numerical value
One or more value class are reduced, until a lower numerical value.
In one embodiment, further include following steps after the transmission power for reducing current radio reception device:
Step S50: if current radio reception device is the fading channel water between the wireless user terminal to be accessed
Minimum radio reception device is put down, then provides access clothes by current radio reception device for the wireless user terminal to be accessed
Business.
After current access device reduces transmission power, the wireless user terminal to be accessed is possible to not detect current
Radio reception device, or the best radio reception device of signal is also possible to non-work as between the wireless user terminal to be accessed
Therefore preceding access device after the transmission power for reducing current radio reception device, judges and the wireless user to be accessed again
Whether the best radio reception device of channel condition is still current access device between terminal, if it is, by current wireless
Access device provides access service for the wireless user terminal to be accessed.
In one embodiment, unlike former embodiment, the transmission power of current radio reception device is reduced
Afterwards, further include following steps:
Step S60: if in the load balancing object of current radio reception device, the first radio reception device be with it is described
The horizontal minimum radio reception device of fading channel, then set by first wireless access between wireless user terminal to be accessed
It is standby to provide access service for the wireless user terminal to be accessed.
After the transmission power for reducing current radio reception device, if the channel between the wireless user terminal to be accessed
The best radio reception device of condition is no longer current access device, but in the load balancing object of current radio reception device
The first radio reception device, then provide access by first radio reception device for the wireless user terminal to be accessed
Service.
In other embodiments, first radio reception device is also possible to be not directly the mobile subscriber to be accessed
Terminal provides access service, but continues to execute the load-balancing method step of the step S10- step S50 in above-described embodiment.
In the present embodiment, after current access device reduces transmission power, the certain wireless user terminals having connected may
It is kicked out of, request is sought in radio reception device sending of the wireless user terminal kicked out of again into local area network, wherein is received
Into the radio reception device for seeking request, channel condition is best between the wireless user terminal kicked out of wirelessly is connect
Enter the load-balancing method step for the step S10- step S50 that equipment executes in above-described embodiment.
In one embodiment, referring to Fig. 3, if the load level and load level of current radio reception device are minimum
Load balancing object load level between difference be greater than the first given threshold, then further include following steps:
Step S70: if the load level of current radio reception device is less than the minimum load balancing object of load level
Load level, and current radio reception device be in maximum transmission power state, then passing through current radio reception device is institute
It states wireless user terminal to be accessed and access service is provided.
Step S80: if current radio reception device is not in maximum transmission power state, current wireless access is improved
The transmission power of equipment, and access service is provided with the transmission power after improving for the wireless user terminal to be accessed.
If the load level of current radio reception device is less than the water load of the minimum load balancing object of load level
It is flat, then illustrate that the load level of current radio reception device is lower, if current radio reception device is not in emission maximum function
Rate state, then can be improved transmission power, increase the coverage area of current radio reception device, more fully utilize wireless network
Resource.
The WLAN load balancing side the present invention is based on power control is introduced with a specific embodiment below
Method, referring to Fig. 4, Fig. 4 is the structure of the WLAN schematic diagram in the present embodiment, including server and radio reception device
AP1-AP5, AP1-AP5 pass through wired connection with server, the user representative wireless user terminal STA around AP1-AP5, each
The range of radio reception device AP covering is a basic service set, multiple basic service set extensions at an extended service set,
WLAN i.e. in the present invention.
Referring to Fig. 5, the present invention is based on the WLAN load-balancing method of power control can be expressed simply as to
Lack the problem of load balancing between two radio reception devices, bears 6 and 5 respectively around radio reception device AP1 and AP2
STA load, but the transmission power that AP1 and AP2 is used is different, and the size of dotted line overlay area, which represents, in figure sends power etc.
The size of grade, the transmission power for sending power and being less than AP2 use that AP1 is used, this is derived from STA load major part and wireless access
The well channel condition between wireless access point 2 of channel condition between point 1.
Referring to Fig. 6, AP1 executes following steps when a new STA seeks request to WLAN sending:
Step S101: receive STA seeks request.
Step S102: judging whether it is the access device best with the STA channel condition, if so, step S103 is executed,
If it is not, then record current load information.
Step S103: the load level of the load balancing object of AP1 is obtained.
Step S104: judge between the load level of AP1 and the load level of the minimum load balancing object of load level
Difference whether less than the first given threshold, if so, step S105 is executed, if not, thening follow the steps.
Step S105: judge whether the load level of AP1 is greater than the water load of the minimum load balancing object of load level
It is flat, if so, step S1061 is executed, if not, thening follow the steps S1071.
Step S1061: the transmission power of AP1 is reduced.
Step S1062: judging whether the transmission power of the AP1 after reducing reaches minimal power values, if so, executing step
S1063, if not, executing step S1064.
Step S1063:AP1 is worked with minimum emissive power.
Step S1064:AP1 is worked with the transmission power after reducing.
Step S1071: the transmission power of AP1 is improved.
Step S1072: judging whether the transmission power of the AP1 after improving reaches maximum power value, if so, executing step
S1073, if not, executing step S1074.
Step S1073:AP1 is worked with maximum transmission power.
Step S1074:AP1 is worked with the transmission power after improving.
Step S108: after judging that AP1 is reduced or improved transmission power, if be still the nothing best with the STA channel condition
Line access device, if so, step S109 is executed, if it is not, then being held by the radio reception device best with the STA channel condition
Row above-mentioned steps.
Step S109:AP1 provides access service for the STA.
Wherein, above-mentioned steps S104-S108 can be executed repeatedly, until reaching load balancing in WLAN.
WLAN load-balancing method of the present invention based on power control is accessed in wireless user terminal
When, the radio reception device for selecting channel condition best, meanwhile, by comparing the best radio reception device of the channel condition
The load level of the minimum radio reception device of load level in load level and WLAN, it is ensured that the channel condition is best
Radio reception device load level in balanced range, ensured the access of wireless user terminal, improved and wirelessly connect
Enter the reliability of equipment access Wireless LAN connection；Meanwhile channel condition is best but load level is heavier by reducing
The power of access device realizes the load balancing in WLAN, has also sufficiently saved power resource, is beneficial to energy conservation ring
It protects；By improving the power for the access device that channel condition is best but load level is lighter, can more fully be provided using network
Source, the dramatic performance of more flexible adaptation wireless network.
Referring to Fig. 7, Fig. 7 is the structural schematic diagram of wireless access device in an embodiment of the present invention, in the present embodiment
Wireless access device 70 include controller 71 and storage medium 72, wherein be stored with computer program on storage medium 72, should
The wireless office based on power control as described in any one of above-described embodiment is realized when computer program is executed by processor
The step of domain net load-balancing method.
In the present embodiment, controller 71 can be one or more application specific integrated circuit (ASIC), digital signal
Processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components.Storage medium 72 can be used it is one or more its
In include program code storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) on implement
Computer program product form.Computer-readable storage media includes permanent and non-permanent, removable and non-removable
Dynamic media can be accomplished by any method or technique information storage.Information can be computer readable instructions, data structure,
The module of program or other data.The example of the storage medium of computer includes but is not limited to: phase change memory (PRAM), it is static with
Machine access memory (SRAM), dynamic random access memory (DRAM), other kinds of random access memory (RAM), only
It reads memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory techniques, read-only
Compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic magnetic
Disk storage or other magnetic storage devices or any other non-transmission medium, can be used for storage can be accessed by a computing device letter
Breath.
Wireless access device of the present invention selects best wireless of channel condition in wireless user terminal access
Access device, meanwhile, it is born by comparing in the load level and WLAN of the best radio reception device of the channel condition
Carry the load level of horizontal minimum radio reception device, it is ensured that the load level of the best radio reception device of the channel condition
In balanced range, the access of wireless user terminal has been ensured, improve radio reception device access Wireless LAN and connect
The reliability connect.
Referring to Fig. 8, Fig. 8 is the structural schematic diagram of radio reception device in an embodiment of the present invention, in the present embodiment
Radio reception device 80 include load balancing object acquisition module 81 and computing module 82.
The load balancing object acquisition module 81 is used to obtain the negative of the load balancing object of current radio reception device
Level is carried, the load balancing object is that other receive the nothing that wireless user terminal to be accessed seeks request in WLAN
Line access device；The computing module 82, for current radio reception device be with the wireless user terminal to be accessed it
Between the horizontal minimum radio reception device of fading channel, and if the load level and load level of current radio reception device most
When difference between the load level of low load balancing object is less than the first given threshold, it is by current radio reception device
The wireless user terminal to be accessed provides access service.
Radio reception device of the present invention selects best wireless of channel condition in wireless user terminal access
Access device, meanwhile, it is born by comparing in the load level and WLAN of the best radio reception device of the channel condition
Carry the load level of horizontal minimum radio reception device, it is ensured that the load level of the best radio reception device of the channel condition
In balanced range, the access of wireless user terminal has been ensured, improve radio reception device access Wireless LAN and connect
The reliability connect.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.
Claims (10)
1. a kind of WLAN load-balancing method based on power control, which comprises the steps of:
The load level of the load balancing object of current radio reception device is obtained, the load balancing object is WLAN
Interior other receive the radio reception device that wireless user terminal to be accessed seeks request；
If current radio reception device is that fading channel is horizontal minimum wireless between the wireless user terminal to be accessed
Access device, and if the load level of current radio reception device and the water load of the minimum load balancing object of load level
Difference between flat is then that the wireless user terminal to be accessed mentions by current radio reception device less than the first given threshold
For access service.
2. the WLAN load-balancing method according to claim 1 based on power control, which is characterized in that also wrap
Include following steps:
If between the load level of the minimum load balancing object of the load level and load level of current radio reception device
Difference be greater than the first given threshold, and if the load level of current radio reception device is greater than the minimum load of load level
The load level of balanced object, and current radio reception device are in minimum emissive power state, then by currently wirelessly connecing
Enter equipment and provides access service for the wireless user terminal to be accessed.
3. the WLAN load-balancing method according to claim 2 based on power control, which is characterized in that also wrap
Include following steps:
If current radio reception device is not in minimum emissive power state, the transmission function of current radio reception device is reduced
Rate.
4. the WLAN load-balancing method according to claim 2 based on power control, which is characterized in that also wrap
Include following steps:
If the load level of current radio reception device is less than the load level of the minimum load balancing object of load level, and
Current radio reception device is in maximum transmission power state, then is the wireless use to be accessed by current radio reception device
Family terminal provides access service.
5. the WLAN load-balancing method according to claim 4 based on power control, which is characterized in that also wrap
Include following steps:
If current radio reception device is not in maximum transmission power state, the transmission function of current radio reception device is improved
Rate, and access service is provided with the transmission power after improving for the wireless user terminal to be accessed.
6. the WLAN load-balancing method according to claim 3 based on power control, which is characterized in that reduce
Further include following steps after the transmission power of current radio reception device:
If current radio reception device is that fading channel is horizontal minimum wireless between the wireless user terminal to be accessed
Access device then provides access service by current radio reception device for the wireless user terminal to be accessed.
7. the WLAN load-balancing method according to claim 3 based on power control, which is characterized in that reduce
Further include following steps after the transmission power of current radio reception device:
If in the load balancing object of current radio reception device, the first radio reception device is and the wireless use to be accessed
The horizontal minimum radio reception device of fading channel between the terminal of family is then described waiting by first radio reception device
Enter wireless user terminal and access service is provided.
8. the WLAN load-balancing method according to claim 1 based on power control, which is characterized in that obtain
The load level of the load balancing object of current radio reception device, includes the following steps:
Create load balancing list object；
Obtain the load information of other wireless user terminals in WLAN；
The information for the radio reception device for detecting and broadcasting according to the wireless user terminal to be accessed, acquisition currently wirelessly connect
Enter the load balancing object of equipment, and the load level of the load balancing object is stored in the load balancing list object
In.
9. a kind of wireless access device characterized by comprising controller and storage medium are stored on the storage medium
Computer program is realized when the computer program is executed by processor and is based on function as in one of claimed in any of claims 1 to 9
The step of WLAN load-balancing method of rate control.
10. a kind of radio reception device characterized by comprising
Load balancing object acquisition module, the load level of the load balancing object for obtaining current radio reception device, institute
Stating load balancing object is that other receive wireless user terminal to be accessed and seek the wireless access of request and set in WLAN
It is standby；
Computing module, for being that fading channel is horizontal between the wireless user terminal to be accessed in current radio reception device
Minimum radio reception device, and if current radio reception device load level and the minimum load balancing pair of load level
It is described to be accessed wireless by current radio reception device when difference between the load level of elephant is less than the first given threshold
User terminal provides access service.
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