CN101626615A - AP power adjustment method and AP power adjustment equipment - Google Patents
AP power adjustment method and AP power adjustment equipment Download PDFInfo
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Abstract
The invention discloses an AP power adjustment method and AP power adjustment equipment so that an AC can collect the information of an AP in real time and periodically and automatically adjusts power according to the information of the collected AP and neighbor APs. The invention adopts the technical scheme that when the number of APs is large in a network to generate higher interference, the AC automatically turn the power of each AP down so as to reduce the interference; and when the number of APs is small in the network to possibly cause the insufficient coverage of a wireless network, the AC automatically increases the power of each AP so as to ensure the coverage of the wireless network.
Description
Technical field
The present invention relates to communication technical field, particularly the power regulating method of a kind of AP and equipment.
Background technology
Recently WLAN (wireless local area network) has obtained more and more widely and deep application, becomes more and more important enterprise-level local area network solution.
(Access Point AP) is equipment commonly used when setting up the micro radio local area network (LAN) at present to WAP (wireless access point).AP is equivalent to a bridge that is connected with gauze and wireless network, and it mainly acts on is that each wireless network clients is connected together, then with the wireless network access network based on ethernet.According to AP itself integrated function difference, prior art is divided into FAT AP networking structure and AC (Access Controller, wireless controller)+FIT AP networking structure.
Wherein, FAT AP networking structure is existing common networking structure, and its schematic diagram as shown in Figure 1.
In this FAT AP networking model, AP is connected to cable network by switch, and all correlation functions are all finished on AP self, and therefore, this AP is called as FAT AP, comprises that dynamic key generates, termination etc. is switched, authenticated in the L2 roaming.Disposal ability for AP self requires just than higher like this, need to bear complicated business, and function upgrading is to realize by the software version of upgrading AP itself.
Based on above-mentioned example as can be seen, the network construction characteristic of FAT AP is as follows:
AP self function is more powerful, and functions such as dynamic key generates, the L2 roaming is switched, authentication termination can be at AP from finishing on one's body;
By webmastering software the whole network AP is unified centralized management;
802.1x authentication termination can be finished by AP self, also can be finished by switch, the WEB authentication also can be finished by AP self or by switch, cooperate the authentication and accounting system on backstage to carry out monthly payment and charge, or based on the charging of duration or flow;
Because the principle features of FAT AP self, it is applicable to that usually scale is less, only is WLAN (wireless local area network) (the Wireless Local Area Network of data access service demand, WLAN) network construction, or some topical application wlan networks carry out the project that focus covers.
Along with AP quantity in the prior wireless network increases gradually, also for wireless network has brought a series of problem, the interference between AP is exactly a major issue that wherein is related to the wireless communication quality.And can realize that AP carries out the power adjustment automatically according to network environment, and reduce the interference in the wireless environment, improve the throughput of whole system, then become the effective way that addresses this problem.
Traditional radio frequency power control method just statically transmitting power be set to maximum, merely pursue signal cover, but excessive may causing of power caused unnecessary interference to other wireless devices.Therefore, need to select the best power of an energy balance coverage and power system capacity.
Still there are not at present standard or the general next real-time technology of standard, the most maximum powers that can adopt acquiescence of AP according to the wireless environment automatic power adjustment.
In realizing process of the present invention, the applicant finds that there is following problem at least in prior art:
In the existing technical scheme, AP generally adopts the maximum power of acquiescence, exists in network like this under the situation of a plurality of AP, will increase network conflict, thereby reduces the throughput of system.
Summary of the invention
The invention provides power regulating method and the equipment of a kind of AP, how real-time automatic power adjustment in wireless environment to reduce the interference in the network, improve the throughput of system.
For achieving the above object, one aspect of the present invention provides a kind of power regulating method of wireless access point AP, be applied to comprise at least two AP and the network system that same Radio Access Controller AC is connected, described AP measures the information of current existing neighbor AP respectively, and the received signal intensity that the signal of determining described AP is produced in each neighbor AP is indicated RSSI, described AC receives the RSSI that the signal of the information of the neighbor AP that described AP sends and the described AP that each neighbor AP sends is produced in described neighbor AP, described method comprises:
Described AC determines the neighbor AP quantity that described AP is current according to the information of the neighbor AP that described AP sent that receives;
When described AC judged that the quantity of the pairing neighbor AP of described AP surpasses default neighbor AP amount threshold, the RSSI that the signal of the described AP that each neighbor AP is sent is produced in described neighbor AP sorted;
Described AC is according to the order of described ordering, selects a standard RSSI according to default selection strategy, judges itself and the magnitude relationship of default RSSI threshold value, and according to described magnitude relationship, described AC adjusts the power of described AP according to default adjustment strategy.
Preferably, described method is specially:
Described AC receives the RSSI that the signal of the described AP that the information of the neighbor AP that AP sends according to default report cycle and each neighbor AP send according to described default report cycle is produced in described neighbor AP;
Described AC is according to default adjustment cycle, the neighbor AP quantity current according to the described AP of information calculations of the neighbor AP that described AP sent that receives;
Wherein, the size of described default report cycle is less than the size of described default adjustment cycle.
Preferably, described AC also comprises according to after the current neighbor AP quantity of each described AP of information calculations of the neighbor AP separately that each described AP sent that receives:
When described AC judged that the quantity of the pairing neighbor AP of described AP does not have to surpass default neighbor AP amount threshold, described AC was set at default value with the performance number of described AP, and finished in this adjustment cycle the power adjustment to described AP.
Preferably, according to the magnitude relationship of described standard RSSI with default RSSI threshold value, described AC adjusts the power of described AP according to default adjustment strategy, is specially:
As described standard RSSI during greater than default RSSI threshold value, described AC reduces the power of described AP;
As described standard RSSI during less than default RSSI threshold value, described AC increases the power of described AP;
Wherein, described AC increases or reduces the size of the power of described AP, equals the absolute value of the difference between described standard RSSI and the default RSSI threshold value, and described default RSSI threshold value is the maximum RSSI value that does not produce network interferences between each AP.
Preferably, described according to the default selected standard RSSI of selection strategy, be specially:
Described AC is according to the order of described ordering, and selecting ordering tagmeme and the described default corresponding RSSI of neighbor AP amount threshold is standard RSSI;
Wherein, described default neighbor AP amount threshold is the minimum AP quantity that produces network interferences between AP.
On the other hand, the present invention also provides a kind of AC, is applied to comprise at least two AP and the network system that same Radio Access Controller AC is connected, comprising:
Module is set, is used to be provided with neighbor AP amount threshold, RSSI threshold value, selection strategy and adjustment strategy;
Communication module, the signal that is used for receiving the information of the neighbor AP that described AP sends and the described AP that each neighbor AP sends is at RSSI that described neighbor AP produced;
Processing module, be connected with the described module that is provided with described communication module, be used for determining the neighbor AP quantity that each described AP is current according to the information of the received neighbor AP separately that each described AP sent of described communication module, and surpass described when the set described neighbor AP amount threshold of module is set in the neighbor AP quantity of an AP, the RSSI that the signal of described communication module received the described AP that each neighbor AP sends is produced in described neighbor AP sorts, and according to the described set selection strategy of module that is provided with, selecting a RSSI in the described ordering is standard RSSI;
Judge module, be connected with the described module that is provided with described processing module, be used for neighbor AP quantity and the described magnitude relationship that module set neighbor AP amount threshold be set current according to determined each the described AP of described processing module, and when the neighbor AP quantity of an AP surpasses described neighbor AP amount threshold, judge selected standard RSSI of described processing module and the described magnitude relationship that the set RSSI threshold value of module is set;
Adjusting module, be connected with the described module that is provided with described judge module, be used for described standard RSSI and the described magnitude relationship that the set RSSI threshold value of module is set judged according to described judge module, the power that the set adjustment strategy of module is adjusted described AP be set according to described.
Preferably, the described module that is provided with also is used to be provided with adjustment cycle;
Described processing module is used for according to the described set adjustment cycle of module that is provided with, according to information calculations each the described AP current neighbor AP quantity of each the described AP that receives according to the default neighbor AP separately that report cycle sent;
Wherein, the size of described default report cycle is less than the described size that the set adjustment cycle of module is set.
Preferably, described standard RSSI and the described magnitude relationship that the set RSSI threshold value of module is set that described adjusting module is judged according to described judge module are provided with the power that the set adjustment strategy of module is adjusted described AP according to described, are specially:
Judge described standard RSSI greater than described when the set RSSI threshold value of module is set when described judge module, described adjusting module reduces the power of described AP;
Judge described standard RSSI less than described when the set RSSI threshold value of module is set when described judge module, described adjusting module increases the power of described AP;
Wherein, described adjusting module increases or reduces the size of the power of described AP, equals the absolute value of the difference between described standard RSSI and the default RSSI threshold value, and described default RSSI threshold value is the maximum RSSI value that does not produce network interferences between each AP.
Preferably, described processing module is specially according to the described selected standard RSSI of the set selection strategy of module that is provided with:
Described processing module is according to the order of described ordering, selects the ordering tagmeme and described the set corresponding RSSI of neighbor AP amount threshold of module is set is standard RSSI;
Wherein, the described set neighbor AP amount threshold of module that is provided with is the minimum AP quantity that produces network interferences between AP.
Compared with prior art, the present invention has the following advantages:
By using technical scheme of the present invention, the information of each AP in the real-time collection current wireless network of AC is carried out the automated power adjustment according to property information cycle of collecting.AP quantity is more in network, thereby when having produced higher interference,, AC reduces interference thereby turning down the power of AP automatically, and the AP negligible amounts in network, and may cause wireless network to cover when not enough, thereby increasing the power of AP automatically, AC guarantees the wireless network coverage.
Description of drawings
Fig. 1 is the structural representation of the network model of typical wireless network of the prior art;
Fig. 2 is the network diagram before AP power of the prior art is adjusted;
Fig. 3 is the adjusted network diagram of AP power of the prior art;
Fig. 4 is the schematic flow sheet of the power regulating method of AP proposed by the invention;
Fig. 5 adjusts preceding schematic network structure for the power regulating method according to AP proposed by the invention;
Fig. 6 carries out adjusted schematic network structure for the power regulating method according to AP proposed by the invention;
Fig. 7 is the schematic flow sheet of the power regulating method of the AP under the concrete application scenarios proposed by the invention;
Fig. 8 is the structural representation of AC proposed by the invention.
Embodiment
As stated in the Background Art,, when increasing area coverage, also produced interference between AP mutually along with the increase of the quantity of AP in the network, the AP quantity in network more for a long time, interference will influence the performance of network.
As shown in Figure 2, in the same area, arranged too much AP, and each AP all carries out signal emission with maximum power, cause having bigger interference between AP, influenced the performance in whole zone.
Further, as shown in Figure 3, technical thought of the present invention is to reduce the power of each AP by the power adjustment, and simultaneously, also the coverage sum that each AP is produced is subjected to obvious influence, therefore, can guarantee the effective range of communication network.
And to carry out the power adjustment, key will determine when carries out the power adjustment, and how to carry out the power adjustment, then is a kind of major issue that the present invention need solve.
In the present invention, AC can arrange the real-time scan for networks of AP, collects the information of neighbor AP in the network, when the quantity of the neighbor AP of AP reaches pre-configured neighbor AP amount threshold, AC just thinks and has had more AP in the network, need carry out the power adjustment to each AP.
In wireless network, the signal strength signal intensity of other AP around each AP can experience, AP also can experience the signal strength signal intensity of this AP on every side, i.e. perception each other between each AP of neighbor AP each other.
If the AP intensity experienced of AP is stronger on every side, then can to experience the signal of AP too stronger for the terminal equipment around the AP, at this moment, just needs to reduce the power of AP, avoids interference; Otherwise, then need to increase the power of AP, strengthen communication quality.
Therefore, carry out power when adjusting, AC will consider the signal strength signal intensity of the AP that neighbor AP perceives, if the signal strength signal intensity that perceives is strong excessively, illustrates that then the power of AP needs to reduce; Otherwise, illustrate that then the power of AP needs to increase.
As for the intensity of adjusting, the intensity of the AP that neighbor AP is experienced after needing to guarantee to adjust can not be less than the threshold value (showing by the RSSI threshold value among the present invention) of appointment.
If the intensity of the AP that neighbor AP is experienced after adjusting illustrates then that less than this threshold value AP power is less, may reduce coverage, reduce network performance.
Simultaneously, in order to guarantee coverage, AC can carry out descending according to the signal strength signal intensity that neighbor AP perceived, find one of them standard signal intensity, and AP is carried out the power adjustment according to this standard signal intensity, the signal strength signal intensity that has so just guaranteed to have at least the AP that several (being provided with according to actual needs) neighbor AP experience is greater than threshold value, thereby guaranteed coverage.
Based on above-mentioned technological thought, the invention provides the power regulating method of a kind of AP, be applied to comprise at least two AP and the network system that same Radio Access Controller AC is connected, each AP measures the information of current existing neighbor AP respectively, each neighbor AP is determined the RSSI that the signal of corresponding AP is produced in this neighbor AP, AC receives the RSSI that the signal of the information of the neighbor AP separately that each AP sends and the AP that each neighbor AP sends is produced in this neighbor AP.
Wherein, RSSI (Received Signal Strength Indication) is the indication of received signal intensity, belongs to the optional part of wireless transmission layer, is used for judging link quality, and whether increases broadcast transmission intensity.In the present invention, this parameter is used for judging the signal annoyance level between AP.
In the application scenarios of reality, if other parameters that can reach constructed effect are arranged, can be applied to too in the technical scheme of the present invention, this belongs to protection scope of the present invention equally.
As shown in Figure 4, this method specifically may further comprise the steps:
Step S401, AC determine the neighbor AP quantity that each AP is current according to the information of the neighbor AP separately that each AP sent that receives.
Need to prove that the specific implementation process of this step is:
The RSSI that the signal of this AP that each neighbor AP that AC receives the information of neighbor AP of each AP self that each AP sends according to default report cycle and this AP sends according to default report cycle is produced in each neighbor AP;
AC is according to default adjustment cycle, according to the current neighbor AP quantity of each AP of information calculations of the neighbor AP separately that each AP sent that receives;
Wherein, the size of default report cycle is less than the size of default adjustment cycle, thereby guaranteeing can be to repeating adjustment with a kind of situation.
Step S402, AC judge whether the quantity of the pairing neighbor AP of each AP surpasses default neighbor AP amount threshold.
When AC judges that the quantity of a pairing neighbor AP of AP surpasses default neighbor AP amount threshold, execution in step S403;
When AC judges that the quantity of a pairing neighbor AP of AP surpasses default neighbor AP amount threshold, execution in step S407.
Step S403, AC sort to the RSSI that the signal of this AP that each neighbor AP sent of this AP is produced in each neighbor AP.
Step S404, AC select a standard RSSI according to the order of ordering according to default selection strategy, judge itself and the magnitude relationship of default RSSI threshold value.
Wherein, under concrete application scenarios, the selection of standard RSSI can be carried out according to following flow process:
AC is according to the order that is sorted among the step S403, and selecting ordering tagmeme and the corresponding RSSI of neighbor AP amount threshold that presets is standard RSSI.
Wherein, default neighbor AP amount threshold is the minimum AP quantity that produces network interferences between AP, and default RSSI threshold value is not for producing the maximum RSSI value of network interferences between each AP.
According to the magnitude relationship of standard RSSI with the RSSI threshold value of presetting, AC is according to the power of default adjustment strategy adjustment AP, and concrete adjustment Policy description is as follows:
As standard RSSI during greater than default RSSI threshold value, execution in step S405;
As standard RSSI during less than default RSSI threshold value, execution in step S406.
Step S405, AC reduce the power of AP.
Step S406, AC increase the power of AP.
In above-mentioned step S405 and step S406, AC increases or reduces the size of the power of AP, equals the absolute value of the difference between standard RSSI and the RSSI threshold value of presetting, and, after step S405 or step S406 finish, directly change step S407 over to.
Step S407, finish in this adjustment cycle power adjustment to this AP.
Need to prove; when AC judges that the quantity of a pairing neighbor AP of AP does not have to surpass default neighbor AP amount threshold; AC can AP performance number be set at default value; also can directly keep existing power constant; and finish in this adjustment cycle the power adjustment of AP, such variation does not influence protection scope of the present invention.
It is pointed out that above-mentioned step S401 can regard the beginning of an adjustment cycle as, step S407 then can be considered as in this adjustment cycle the end to the power adjustment process of an AP.
For the adjustment that guarantees AP power can adapt to the continuous variation of wireless network, the power adjustment process constantly circulates according to adjustment cycle, and after promptly step S407 finished, AC restarted setting up procedure S401 in next adjustment cycle.
Compared with prior art, the present invention has the following advantages:
By using technical scheme of the present invention, the information of each AP in the real-time collection current wireless network of AC is carried out the automated power adjustment according to property information cycle of collecting.AP quantity is more in network, thereby when having produced higher interference,, AC reduces interference thereby turning down the power of AP automatically, and the AP negligible amounts in network, and may cause wireless network to cover when not enough, thereby increasing the power of AP automatically, AC guarantees the wireless network coverage.
Below, in conjunction with concrete application scenarios technical scheme of the present invention is described.
In network configuration as shown in Figure 5, there are 5 AP to be connected on the AC, each AP provides wireless service with the maximum power of acquiescence.
According to the setting of technical solution of the present invention, each AP can the collecting ring environment information, and gives AC according to certain periodic report.
By above-mentioned report flow, AC can obtain following information:
AP1 has 4 neighbor AP, and AP2, AP3, AP4, AP5 respectively have three neighbor AP.
Suppose that the neighbor AP amount threshold (threshold value) that is provided with in the current wireless network is 3, so, because the neighbor AP quantity of each AP has all surpassed 3, at this moment, AC just can adjust the performance number of each AP.
As shown in Figure 6, after the process of adjusting power was finished, the wireless network coverage was constant substantially, but because the signal strength signal intensity step-down, the interference in the wireless network reduces, thereby has improved the throughput of whole wireless network.
Below, as shown in Figure 7, the process of the power regulating method of above-mentioned AP proposed by the invention is elaborated:
Step S701, AC collect the neighbor AP information of each AP in the current wireless network.
For automatic power adjustment, AC need understand the neighbor AP information of each AP.Each AP in the current wireless network can scanning channel, thereby is had which AP on every side, and the RSSI of this AP of experiencing of these neighbor AP.
Then, AP reports AC with these information.
Because network environment may change, so the neighbor AP information of AP can periodically report AC.
After each AP had reported neighbor information separately, AC had just had the understanding of an integral body to the neighbor information of each AP.
AC can periodically carry out the automated power adjustment to each AP in the current wireless network.
In the application scenarios of reality, this power adjustment cycle can be provided with and adjust according to the practical application needs, but, the cycle size of this power adjustment should report the report cycle of neighbor AP information greater than each AP in the abovementioned steps, thereby, guarantee that AC can not carry out the power adjustment of repetition to same network scenarios, causes the wasting of resources.
The specific algorithm that power is adjusted is as follows:
Step S702, AC calculate the neighbor AP quantity of each AP in the current network.
Step S703, AC judge whether the neighbor AP quantity of each AP surpasses default neighbor AP amount threshold N.
If the neighbor AP quantity of AP does not have to surpass default neighbor AP amount threshold N, then execution in step S704;
If the neighbor AP quantity of AP surpasses default neighbor AP amount threshold N, then execution in step S705.
Step S704, AC revert to default value with the power of AP.
So far, in this adjustment cycle the power adjustment of AP is finished, changed over to step S709.
Step S705, AC carry out the RSSI corresponding with this AP that each neighbor AP of this AP reports and carry out descending sort.
Each neighbor AP of AP all can record from the RSSI of the message of AP transmission, and reports AC.
AC carries out descending according to the size of RSSI numerical value to all pairing RSSI of this AP that neighbor AP reported, then, therefrom find the big RSSI value of N, to report the neighbor AP of this RSSI to be labeled as NAP-nth, the RSSI of its AP that experiences is recorded as RSSI-nth, be defined as standard RSSI, as the foundation in the follow-up adjustment process.
Step S706, AC judge the standard RSSI that NAP-nth reported (RSSI-nth) of AP and the magnitude relationship of the RSSI threshold value of presetting.
Wherein the RSSI threshold value can be provided with according to the needs of practical application scene and adjust, and is labeled as RSSI-threshold.
If RSSI-nth, thinks then that the power of current AP is higher greater than RSSI-threshold, execution in step S707;
If RSSI-nth, thinks then that the power of current AP is lower less than RSSI-threshold, execution in step S708.
Step S707, AC reduce AP power.
The power of AP before supposing to adjust is P-before, and the power of adjusted AP is P-after.
It is as follows that then AC reduces the algorithm of AP power:
P-after＝P-before-(RSSI-nth-RSSI-threshold)。
After finishing, adjustment changes step S709 over to.
Step S708, AC increase AP power.
The power of AP before supposing to adjust is P-before, and the power of adjusted AP is P-after.
Then the algorithm of AC increase AP power is as follows:
P-after＝P-before+(RSSI-threshold-RSSI-nth)。
After finishing, adjustment changes step S709 over to.
Step S709, AC finish the adjustment of AP.
It is pointed out that above-mentioned step S701 can regard the beginning of an adjustment cycle as, step S709 then can be considered as in this adjustment cycle the end to the power adjustment process of an AP.
For the adjustment that guarantees AP power can adapt to the continuous variation of wireless network, the power adjustment process constantly circulates according to adjustment cycle, and after promptly step S709 finished, AC restarted setting up procedure S701 in next adjustment cycle.
Adjust like this, power can be adjusted to smaller value when having guaranteed that AP power is excessive, and AP power hour can be adjusted to higher value.Thereby both guaranteed wireless coverage, can avoid interference excessive again.
In order to realize above-mentioned technical scheme, the present invention also provides a kind of AC, is applied to comprise that structural representation comprises as shown in Figure 8 at least two AP and the network system that same AC is connected:
Adjusting module 85, with judge module 84 with module 81 be set be connected, be used for the magnitude relationship of the standard RSSI that judged according to the judge module 84 RSSI threshold value set with module 81 is set, adjust the power of AP according to module 81 set adjustment strategies are set.
In concrete application scenarios, module 81 is set also is used to be provided with adjustment cycle;
Accordingly, processing module 83 is used for according to the set adjustment cycle of module 81 is set, according to information calculations each AP current neighbor AP quantity of each AP that receives according to the default neighbor AP separately that report cycle sent;
Wherein, the size of Yu She report cycle is less than the size that the set adjustment cycle of module 81 is set.
In concrete application scenarios, the magnitude relationship of the RSSI threshold value that the standard RSSI that adjusting module 85 is judged according to judge module 84 is set with module 81 is set is adjusted the power of AP according to module 81 set adjustment strategies are set, and is specially:
When judge module 84 criterion RSSI when the set RSSI threshold value of module 81 is set, adjusting module 85 reduces the power of AP;
When judge module 84 criterion RSSI when the set RSSI threshold value of module 81 is set, adjusting module 85 increases the power of AP;
Wherein, adjusting module increases or reduces the size of the power of AP, equals the absolute value of the difference between standard RSSI and the default RSSI threshold value, and it is the maximum RSSI value that does not produce network interferences between each AP that module 83 set RSSI threshold values are set.
In concrete application scenarios, processing module 83 is specially according to the set selected standard RSSI of selection strategy of module 81 is set:
Wherein, module 83 set neighbor AP amount threshold being set is the minimum AP quantity that produces network interferences between AP.
Compared with prior art, the present invention has the following advantages:
By using technical scheme of the present invention, the information of each AP in the real-time collection current wireless network of AC is carried out the automated power adjustment according to property information cycle of collecting.AP quantity is more in network, thereby when having produced higher interference,, AC reduces interference thereby turning down the power of AP automatically, and the AP negligible amounts in network, and may cause wireless network to cover when not enough, thereby increasing the power of AP automatically, AC guarantees the wireless network coverage.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) each implements the described method of scene to carry out the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is a preferred schematic diagram of implementing scene, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in the scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number is not represented the quality of implementing scene just to description.
More than disclosed only be several concrete enforcement scene of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (9)
1, a kind of power regulating method of wireless access point AP, it is characterized in that, be applied to comprise at least two AP and the network system that same Radio Access Controller AC is connected, described AP measures the information of current existing neighbor AP respectively, and the received signal intensity that the signal of determining described AP is produced in each neighbor AP is indicated RSSI, described AC receives the RSSI that the signal of the information of the neighbor AP that described AP sends and the described AP that each neighbor AP sends is produced in described neighbor AP, described method comprises:
Described AC determines the neighbor AP quantity that described AP is current according to the information of the neighbor AP that described AP sent that receives;
When described AC judged that the quantity of the pairing neighbor AP of described AP surpasses default neighbor AP amount threshold, the RSSI that the signal of the described AP that each neighbor AP is sent is produced in described neighbor AP sorted;
Described AC is according to the order of described ordering, selects a standard RSSI according to default selection strategy, judges itself and the magnitude relationship of default RSSI threshold value, and according to described magnitude relationship, described AC adjusts the power of described AP according to default adjustment strategy.
2, the method for claim 1 is characterized in that, is specially:
Described AC receives the RSSI that the signal of the described AP that the information of the neighbor AP that AP sends according to default report cycle and each neighbor AP send according to described default report cycle is produced in described neighbor AP;
Described AC is according to default adjustment cycle, the neighbor AP quantity current according to the described AP of information calculations of the neighbor AP that described AP sent that receives;
Wherein, the size of described default report cycle is less than the size of described default adjustment cycle.
3, method as claimed in claim 2 is characterized in that, described AC also comprises according to after the current neighbor AP quantity of each described AP of information calculations of the neighbor AP that each described AP sent that receives:
When described AC judged that the quantity of the pairing neighbor AP of described AP does not have to surpass default neighbor AP amount threshold, described AC was set at default value with the performance number of described AP, and finished in this adjustment cycle the power adjustment to described AP.
4, the method for claim 1 is characterized in that, according to the magnitude relationship of described standard RSSI with default RSSI threshold value, described AC adjusts the power of described AP according to default adjustment strategy, is specially:
As described standard RSSI during greater than default RSSI threshold value, described AC reduces the power of described AP;
As described standard RSSI during less than default RSSI threshold value, described AC increases the power of described AP;
Wherein, described AC increases or reduces the size of the power of described AP, equals the absolute value of the difference between described standard RSSI and the default RSSI threshold value, and described default RSSI threshold value is the maximum RSSI value that does not produce network interferences between each AP.
5, method as claimed in claim 4 is characterized in that, and is described according to the default selected standard RSSI of selection strategy, is specially:
Described AC is according to the order of described ordering, and selecting ordering tagmeme and the described default corresponding RSSI of neighbor AP amount threshold is standard RSSI;
Wherein, described default neighbor AP amount threshold is the minimum AP quantity that produces network interferences between AP.
6, a kind of AC is characterized in that, is applied to comprise at least two AP and the network system that same Radio Access Controller AC is connected, comprising:
Module is set, is used to be provided with neighbor AP amount threshold, RSSI threshold value, selection strategy and adjustment strategy;
Communication module, the signal that is used for receiving the information of the neighbor AP that described AP sends and the described AP that each neighbor AP sends is at RSSI that described neighbor AP produced;
Processing module, be connected with the described module that is provided with described communication module, be used for determining the neighbor AP quantity that each described AP is current according to the information of the received neighbor AP separately that each described AP sent of described communication module, and surpass described when the set described neighbor AP amount threshold of module is set in the neighbor AP quantity of an AP, the RSSI that the signal of described communication module received the described AP that each neighbor AP sends is produced in described neighbor AP sorts, and according to the described set selection strategy of module that is provided with, selecting a RSSI in the described ordering is standard RSSI;
Judge module, be connected with the described module that is provided with described processing module, be used for neighbor AP quantity and the described magnitude relationship that module set neighbor AP amount threshold be set current according to determined each the described AP of described processing module, and when the neighbor AP quantity of an AP surpasses described neighbor AP amount threshold, judge selected standard RSSI of described processing module and the described magnitude relationship that the set RSSI threshold value of module is set;
Adjusting module, be connected with the described module that is provided with described judge module, be used for described standard RSSI and the described magnitude relationship that the set RSSI threshold value of module is set judged according to described judge module, the power that the set adjustment strategy of module is adjusted described AP be set according to described.
7, AC as claimed in claim 6 is characterized in that,
The described module that is provided with also is used to be provided with adjustment cycle;
Described processing module is used for according to the described set adjustment cycle of module that is provided with, according to information calculations each the described AP current neighbor AP quantity of each the described AP that receives according to the default neighbor AP separately that report cycle sent;
Wherein, the size of described default report cycle is less than the described size that the set adjustment cycle of module is set.
8, AC as claimed in claim 6, it is characterized in that, described standard RSSI and the described magnitude relationship that the set RSSI threshold value of module is set that described adjusting module is judged according to described judge module, according to described the power that the set adjustment strategy of module is adjusted described AP is set, is specially:
Judge described standard RSSI greater than described when the set RSSI threshold value of module is set when described judge module, described adjusting module reduces the power of described AP;
Judge described standard RSSI less than described when the set RSSI threshold value of module is set when described judge module, described adjusting module increases the power of described AP;
Wherein, described adjusting module increases or reduces the size of the power of described AP, equals the absolute value of the difference between described standard RSSI and the default RSSI threshold value, and described default RSSI threshold value is the maximum RSSI value that does not produce network interferences between each AP.
9, AC as claimed in claim 6 is characterized in that, described processing module is specially according to the described selected standard RSSI of the set selection strategy of module that is provided with:
Described processing module is according to the order of described ordering, selects the ordering tagmeme and described the set corresponding RSSI of neighbor AP amount threshold of module is set is standard RSSI;
Wherein, the described set neighbor AP amount threshold of module that is provided with is the minimum AP quantity that produces network interferences between AP.
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