CN103957586A - Power adjustment method and device for wireless local area network - Google Patents
Power adjustment method and device for wireless local area network Download PDFInfo
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- CN103957586A CN103957586A CN201410183028.3A CN201410183028A CN103957586A CN 103957586 A CN103957586 A CN 103957586A CN 201410183028 A CN201410183028 A CN 201410183028A CN 103957586 A CN103957586 A CN 103957586A
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Abstract
The invention discloses a power adjustment method and device for a wireless local area network. The method includes the steps that the condition of interference on an access point (AP) is obtained through an AP scanning channel, and the degree of interfering other adjacent cell APs by the AP is evaluated according to the condition of interference; a link boundary value of a working station in parallel with the AP is obtained; if the AP has large interference on the other adjacent cell APs, the power of the AP is lowered; if the AP has moderate interference on the other adjacent cell APs, the power of the AP is kept; if the AP has no interference on the other adjacent cell APs, the power of the AP is increased. After interference conditions of all the APs of the whole network are obtained, the degree of interfering the network by the APs is obtained according to all the interference conditions of the APs to determine the AP selection, and the power of the AP is adjusted by referring to the link boundary value of the working station in parallel with the AP, so that the interference on the whole network is reduced, and communication quality of the network is effectively improved.
Description
Technical field
The present invention relates to wireless local area network technology field, particularly relate to a kind of power regulating method and device of WLAN (wireless local area network).
Background technology
WLAN (wireless local area network) (WLAN in recent years, Wireless Local Area Network) obtain applying more and more widely, this technology is based on IEEE (International Power electronic engineering association) 802.11 standards, this standard is the series of standards of being formulated by IEEE, specify access point (AP in WLAN, Access Point) and work station (STA, Station) between wave point.
The propagation of wireless signal is subject to surrounding environment influence, and the problems such as multipath can cause wireless signal to have in different directions very complicated relaxation phenomenon, so the enforcement of wlan network often needs the careful network planning.Even if successfully disposing after wireless network, the parameter adjustment of application stage is still essential, this is constantly to change because of wireless environment, mobile barrier, interference that microwave oven of working etc. brings etc. all may impact the propagation of wireless signal, so the radio frequency resources such as channel, transmitting power must dynamically adjust to adapt to the variation of user environment.Such adjustment process is complicated, needs abundant technical experience and regular manual detection, causes very high management cost.
In current many wlan networks, just when device initialize powers on by the transmitting power initial setting up of each communication equipment at certain predetermined level place, as the maximum transmission power of this equipment, and in whole communication subsequently, continue to remain on this and arrange on power.If during due to the factor changes such as environment or each network equipment change relevant position, while initially powering on, set transmitting power may become too low or too high, so just need to dynamically adjust the level of transmitting power in WLAN environment.Power control in wlan network can be divided into the control of STA power and the control of AP power: be to ensure, on the basis of user communication quality, to reduce the transmitting power of STA as far as possible, reducing the energy consumption of STA, extending the operating time of STA to the power control of STA; Mainly in order to complete the covering to object space and to reduce the interference between AP to the power control of AP.
In highdensity WLAN coverage territory, may have many AP and SSID (Service Set Identifier, service identifiers collection), the interference between them is very serious.Due to the limited amount of wireless channel, so only rely on general method for channel allocation in high density overlay area, cannot effectively reduce the interference of wlan system.
Summary of the invention
Based on this, be necessary for the problems referred to above, a kind of power regulating method and device of WLAN (wireless local area network) is provided, make its interference that can reduce by adjusting the transmitting power of AP wlan system, promote the performance of wlan system.
A power regulating method for WLAN (wireless local area network), comprises step:
Obtain by access point scanning channel the disturbed condition that described access point is subject to, and assess the annoyance level of described access point to other adjacent area access point according to described disturbed condition, wherein said annoyance level comprises that interference is larger, noiseless, it is moderate to disturb;
Obtain the link boundary value of the work station of described access point association, the performance number that wherein said link boundary value receives according to described work station deducts the minimum performance number of accepting and determines;
If it is larger that described access point disturbs other adjacent area access point, according to the minimum emissive power restriction of described link boundary value and described access point, reduce the power of described access point;
If it is moderate that described access point disturbs other adjacent area access point, keep the power of described access point.
A power adjustment apparatus for WLAN (wireless local area network), comprising:
Annoyance level acquisition module, for obtaining by access point scanning channel the disturbed condition that described access point is subject to, and assess the annoyance level of described access point to other adjacent area access point according to described disturbed condition, wherein said annoyance level comprises that interference is larger, noiseless, it is moderate to disturb;
Link boundary value acquisition module, for obtaining the link boundary value of work station of described access point association, the performance number that wherein said link boundary value receives according to described work station deducts the minimum performance number of accepting and determines;
Power regulation module, in the time that described access point is larger to other adjacent area access point interference, according to the minimum emissive power restriction of described link boundary value and described access point, reduces the power of described access point; At described access point, other adjacent area access point is disturbed when moderate, keep the power of described access point.
The power regulating method of WLAN (wireless local area network) of the present invention and device, by real-time concentrated the obtain disturbed condition that in network, AP is subject to and the disturbed condition that network is caused, certain AP in the selection network of capable of dynamic also adjusts its transmitting power, after obtaining the disturbed condition of all AP of the whole network to the selection of AP, annoyance level network being caused by all AP disturbed conditions acquisition AP determines, and adjust the power of this AP with reference to the link boundary value at this AP related job station, the interference of the whole network is reduced, effectively improve the communication quality of network.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the inventive method embodiment mono-;
Fig. 2 is the schematic flow sheet of the inventive method embodiment bis-;
Fig. 3 is the schematic flow sheet of the inventive method embodiment tri-;
Fig. 4 is the structural representation of apparatus of the present invention embodiment mono-;
Fig. 5 is the structural representation of apparatus of the present invention embodiment bis-;
Fig. 6 is the structural representation of apparatus of the present invention embodiment tri-.
Embodiment
The embodiment of the power regulating method below in conjunction with accompanying drawing to WLAN (wireless local area network) of the present invention is described in detail.
As shown in Figure 1, a kind of power regulating method of WLAN (wireless local area network), comprises step:
S110, obtain by access point scanning channel the disturbed condition that described access point is subject to, and assess the annoyance level of described access point to other adjacent area access point according to described disturbed condition, wherein said annoyance level comprises that interference is larger, noiseless, it is moderate to disturb;
Obtain the quality report of channel by AP scanning channel, and build channel quality assessment table, the neighbor AP information that described channel quality assessment table represents the disturbed condition that AP is subject to and detects according to quality report; The content that channel quality assessment table is measured can comprise: whether this frequency range has radar signal, receives the average RSSI (Received Signal Strength Indication, received signal strength indicator), Packet Error Ratio of bag, interference value (time/total call duration time being interfered), disturbed condition and the loading condition of this AP channel etc. of adjacent area AP to this AP detecting;
Obtain the channel quality assessment table of each AP, then can obtain disturbed condition evaluation form by the channel quality assessment list processing of all AP, described disturbed condition evaluation form represents the annoyance level of AP to other adjacent area AP, disturbed condition evaluation form can comprise: AP sign number, AP radio-frequency module identification number, AP working channel number, total annoyance level to other adjacent areas AP (disturbs larger, disturb moderate, noiseless etc.), disturbed AP identification number, disturbed AP working channel number, the interference value (time/total data call duration time of interference signal busy channel) of AP to disturbed AP, the interference value of the associated STA of AP to disturbed AP, interference strength (receiving the average RSSI of interference signal) and the level of interference (annoyance level of AP to disturbed AP) etc. of disturbed AP, wherein identification number and working channel number are AP attribute, represent the identity information of AP and the channel number of work, AP radio-frequency module sign number represents the radio-frequency module numbering of this AP,
S120, obtain the link boundary value of the work station of described access point association, the performance number that wherein said link boundary value receives according to described work station deducts the minimum performance number of accepting and determines;
802.11h agreement regulation, STA can be to TPC (Transmit Power Control, transmitting power control) Report information element collects, the transmitted power that this element comprises this frame and link border (link margin) value, the security limit that work station proposes; The performance number (dBm) that link boundary value receives deducts minimum acceptable value (dBm);
Current AP is by periodically sending TPC Request frame to STA, and STA responds TPC Report frame, Link margin value, builds the link boundary value list of STA;
If the described access point of S130 disturbs larger to other adjacent area access point, according to the minimum emissive power restriction of described link boundary value and described access point, reduce the power of described access point, the build-in attribute that wherein minimum emissive power is each AP, the minimum emissive power value that this AP can provide;
If it is moderate that the described access point of S140 disturbs other adjacent area access point, keep the power of described access point.
In the time that access point is noiseless to other adjacent area access point, may there is the problem that this switch-in point transmitting power is less, in order better to improve network quality, in one embodiment, the embodiment of the present invention can also comprise step:
If described access point is noiseless to other adjacent area access point, according to the maximum transmit power limit of described access point, the power of described access point raises, the build-in attribute that wherein maximum transmission power is each AP, the maximum transmit power value that this AP can provide, arranges usually used as parameter configuration.
In step S110, assess the annoyance level of described access point to other adjacent area access point according to disturbed condition, obtain disturbed condition evaluation form according to channel quality assessment table, can realize according to method known in the state of the art, for example, in one embodiment, the process of setting up disturbed condition evaluation form according to channel quality assessment table can comprise:
Upgrade after the channel quality assessment table of AP_0 (interfering AP of present analysis), trigger N homogeneous-frequency adjacent-domain AP_i (i=1,2,3 of in its channel quality assessment table, recording ..., N) and upgrade its disturbed condition evaluation form;
By the information copy of AP_i in the adjacent area AP list of AP_0, in the disturbed condition evaluation form of AP_i, gauge outfit is replaced by AP_0;
In AP_0 item in the disturbed condition evaluation form of AP_i, add timestamp;
Calculate the level of interference of AP_i and be recorded in the position of AP_0 item correspondence in the disturbed condition evaluation form of AP_i;
After the disturbed condition evaluation form of N homogeneous-frequency adjacent-domain AP_i is upgraded, the annoyance level of assessment AP_0 to all adjacent area AP_i.
The step of wherein calculating the level of interference of AP_i comprises:
Judge that AP_0 takies duration to the interference of AP_i and whether is greater than AP interference duration threshold value, if so, think larger to AP_i interference, otherwise enter next step; Wherein disturb and take the time span that duration represents busy channel;
Judge whether RSSI that AP_i receives AP_0 is greater than AP and disturbs received power threshold, if so, think and AP_i is disturbed larger, otherwise enter next step;
The STA that judges AP_0 association takies duration to the interference of AP_i and whether is greater than STA and disturbs duration threshold value, if so, thinks moderate to the interference of AP_i, otherwise thinks less to the interference of AP_i.
The step of the annoyance level of assessment AP_0 to all adjacent area AP_i comprises:
S111, judge that whether the disturbed condition evaluation form of AP_0 is empty, if it is empty, illustrate that AP_0 does not cause interference to adjacent area AP_i, enters step S117; If not empty, illustrate that AP_0 causes interference to adjacent area AP_i, enters step S112;
S112, judge that in AP_0 disturbed condition evaluation form, whether having the level of interference of AP_i is to disturb greatlyr, if so, illustrate that some adjacent area AP_i has been subject to larger interference, enter step S113, otherwise enter step S114;
S113, in the disturbed condition evaluation form of AP_0, the level of interference of AP_i is to disturb larger ratio whether to be not less than high interference threshold value, if enter step S115, otherwise enters step S116; It is to disturb the ratio of all adjacent area AP_i of larger AP_i and AP_0 that wherein said ratio refers to level of interference;
S114, in the disturbed condition evaluation form of AP_0, the level of interference of AP_i is to disturb less ratio whether to be greater than low interference threshold, if so, illustrates that AP_0 is less to the interference of cycle adjacent area AP_i, enters step S117, otherwise enters step S116; It is to disturb the ratio of all adjacent area AP_i of less AP_i and AP_0 that wherein said ratio refers to level of interference;
S115, AP_0 are set to disturb larger to the annoyance level of adjacent area AP_i;
S116: AP_0 is set to disturb moderate to the annoyance level of adjacent area AP_i;
S117: AP_0 is set to noiseless to the annoyance level of adjacent area AP_i.
In the time that AP is larger to the interference of adjacent area AP, need to, according to the minimum emissive power restriction of link boundary value and described access point, reduce the power of described AP, cause coverage hole for fear of reducing AP power, in one embodiment, in step S130, reducing described AP power can comprise:
If all real-time update of the link boundary value of the each described work station of S131, and described link boundary value be all greater than link boundary threshold and default step-length and, reduce the power of described access point, wherein said link boundary threshold represents that work station is in the threshold value in the weak environment of received power always;
TPC information gathering is periodic, control by TPC information gathering cycle timer, cycle arrives, just two timers (cycle timer and overtime timer) are resetted, start the gatherer process of a new round, wherein TPC information gathering overtime timer, is used for specifying the duration of at every turn carrying out TPC information gathering, stops gathering the measurement report of TPC information reporting links boundary value after overtime; Described default step-length need be supported 3dB step-length, also optional support 1dB or 2dB step-length;
If the link boundary value real-time update of the described work station of S132 part, or exist link boundary value be not more than described link boundary threshold and described default step-length and, do not reduce the power of described access point;
If TPC information gathering overtime timer expires, but in link table boundary value, still there is STA not upgrade its link boundary value, can think that network state is now not good, or the communication quality between these STA and AP is poor, now retain the original TPC information of these STA, and " more new state of link table boundary value " is set to " part is upgraded ", do not reduce the power of AP.
In the time that AP is noiseless to other adjacent area AP, according to the maximum transmit power limit of AP, the described AP power that raises, excessive for fear of AP power rising back loading, in one embodiment, the described AP power that raises in step S150 can comprise:
If the present load of described AP is larger, increase again the load of this AP after avoiding power to raise, make AP load excessive, keep the power of described AP, otherwise the power of the described AP that raises.
The present invention can also obtaining by real-time vulnerability information and TPC information, in the time there is blind area and the poor situation of user communication quality in network, dynamically adjust the power of corresponding AP, make up and improve the network black spots of now causing and the situation of communication quality variation, the reason that wherein blind area produces comprises: AP lost efficacy, AP transmitting power is too little etc.Situation about losing efficacy for AP, as shown in Figure 2, method provided by the invention is:
S210, obtain the adjacent area access point of inefficacy access point;
AC (Access Controller, access controller) obtain inefficacy AP by heartbeat message mechanism, adopt CAPWAP (Control And Provisioning of Wireless Access Points Protocol Specification, WAP (wireless access point) and the configuration controlled) agreement communicates, AC regularly sends once inquiry, AP replys, and to represent that AP normally works, loses efficacy if AP dont answer represents AP; The adjacent area AP that can obtain by channel quality assessment table inefficacy AP, also can obtain by alternate manner;
S220, from the access point of described adjacent area, obtain the new access point that is not maximum transmission power;
S230, described new access point is increased to maximum transmission power;
All adjacent area AP of poll inefficacy AP, if adjacent area AP has reached maximum transmission power, keep this power, otherwise adjacent area AP is forced to rise to maximum transmission power, do not consider loading condition and the disturbed condition of AP while forcing rising power.
If STA communication quality, for a long time in poor state, now may, because AP transmitting power is too little, exist coverage hole, for the too little situation of AP transmitting power, as shown in Figure 3, method provided by the invention is:
S310, cycle be the link boundary value of the work station of new access point association more;
Cycle gathers the TPC information of AP, and upgrades the link boundary value of the associated STA of this AP;
If the link boundary value of S320 work station is less than the number of times of described link boundary threshold and is greater than preset times, this work station is labeled as unsuccessfully to work station;
All STA of this AP association of poll, the link boundary value that records each STA is less than the number of times of link boundary threshold, in the time that the number of times of record is greater than preset times, illustrate that this STA is in received power for a long time compared with in circlet border, or this STA may be in coverage hole or be positioned at the edge of blind area, this STA is labeled as unsuccessfully to STA, for judging whether that need to adjust AP power prepares;
S330, judge whether the number of failed work station in the work station of described access point association is greater than preset number, if, and the load of described access point and little, the described access point of the interference of other adjacent area access point is not reached to maximum transmission power, enter step S340, otherwise enter step S350;
In the time that failed STA number is greater than preset number, for fear of rising AP power to adjacent area AP cause larger interference or this AP load excessive etc., need to consider the load of this AP and disturbed condition determine whether again the to raise power of this AP; Described AP disturbs little situation to comprise that described AP is moderate and noiseless for disturbing to the annoyance level of adjacent area AP to other adjacent areas AP; If this AP has been maximum transmission power, keep original power of this AP, now can solve coverage hole problem by the method that increases AP node at this place;
The power of S340, the described access point that raises;
S350, do not carry out power adjustment.
If AP is for a long time in overload, and when cannot carrying out any load balancing measure, the present invention also provides a kind of method, can reduce the load of overload AP.In one embodiment, if the load of access point is excessive, reduce the power of described access point, if described access point is minimum emissive power, keep the power of described access point constant; When overload AP is while being minimum emissive power, can send and go operation associatedly part STA, force it to depart from this overload AP.
For fear of frequently AP being carried out to power adjustment, reduce user's experience, the present invention also provides a kind of method, is used for guaranteeing, after certain power is adjusted, allowing transmitting power keep the stable state of certain hour.In one embodiment, before the step of reduction or rising access point power, can also comprise step:
Power is set and keeps timer, judge that described power keeps timer whether to arrive Preset Time, if so, reduces or the described access point power that raises, otherwise do not carry out power adjustment, wherein said power keeps timer to be used for guaranteeing that power keeps stable state in described Preset Time;
After the step of reduction or the described access point power that raises, can also comprise step:
Keep timer to reset described power, restart timing.
Executing after a power adjustment, starting power keeps timer, if power keeps timer not arrive Preset Time while issuing power adjustment commands, does not respond this power adjustment.Power keeps timer can be arranged on AC, also can be arranged on AP, if be arranged on AC, does not issue control command to AP, if be arranged on AP, does not respond the power adjustment commands that AC issues.
Based on same inventive concept, the present invention also provides a kind of power adjustment apparatus of WLAN (wireless local area network), below in conjunction with accompanying drawing, the embodiment of apparatus of the present invention is described in detail.
As shown in Figure 4, a kind of power adjustment apparatus of WLAN (wireless local area network), comprising:
Annoyance level acquisition module 100, for obtaining by access point scanning channel the disturbed condition that described access point is subject to, and assess the annoyance level of described access point to other adjacent area access point according to described disturbed condition, wherein said annoyance level comprises that interference is larger, noiseless, it is moderate to disturb;
Link boundary value acquisition module 200, for obtaining the link boundary value of work station of described access point association, the performance number that wherein said link boundary value receives according to described work station deducts the minimum performance number of accepting and determines;
Power regulation module 300, in the time that described access point is larger to other adjacent area access point interference, according to the minimum emissive power restriction of described link boundary value and described access point, reduces the power of described access point; At described access point, other adjacent area access point is disturbed when moderate, keep the power of described access point.
In the time that access point is noiseless to other adjacent area access point, may there is the problem that this switch-in point transmitting power is less, in order better to improve network quality, in one embodiment, power regulation module 300 is also in the time that described access point is noiseless to other adjacent area access point, according to the maximum transmit power limit of described access point, the power of the described access point that raises.
In the time that AP is larger to the interference of adjacent area AP, need to be according to the minimum emissive power restriction of link boundary value and described access point, reduce the power of described AP, cause coverage hole for fear of reducing AP power, in one embodiment, the power that described power regulation module 300 reduces described access point comprises:
If all real-time update of the link boundary value of each described work station, and described link boundary value be all greater than link boundary threshold and default step-length and, described power regulation module 300 reduces the power of described access point, and wherein said link boundary threshold represents that work station is in the threshold value in the weak environment of received power always;
If the link boundary value real-time update of the described work station of part, or exist link boundary value be not more than described link boundary threshold and described default step-length and, described power regulation module 300 does not reduce the power of described access point.
In the time that AP is noiseless to other adjacent area AP, according to the maximum transmit power limit of AP, the described AP power that raises, excessive for fear of AP power rising back loading, in one embodiment, the raise power of described access point of described power regulation module 300 comprises:
If the present load of described access point is larger, described power regulation module 300 keeps the power of described access point, the power of described access point otherwise described power regulation module 300 raises.
The present invention can also obtaining by real-time vulnerability information and TPC information, in the time there is blind area and the poor situation of user communication quality in network, dynamically adjust the power of corresponding AP, make up and improve the network black spots of now causing and the situation of communication quality variation, the reason that wherein blind area produces comprises: AP lost efficacy, AP transmitting power is too little etc.Situation about losing efficacy for AP, as shown in Figure 5, apparatus of the present invention can also comprise:
Adjacent area access point acquisition module 400, for obtaining the adjacent area access point of inefficacy access point;
New access point acquisition module 500, for obtaining the new access point that is not maximum transmission power from described adjacent area access point;
Described new access point is increased to maximum transmission power by described power regulation module 300.
If STA communication quality, for a long time in poor state, now may, because AP transmitting power is too little, exist coverage hole, for the too little situation of AP transmitting power, as shown in Figure 6, apparatus of the present invention can also comprise:
Link boundary value update module 600, for the more link boundary value of the work station of new access point association of cycle;
Work station mark module 700, while being greater than preset times, is labeled as unsuccessfully work station by this work station for be less than the number of times of described link boundary threshold at the link boundary value of work station;
Comparison module 800, for the number of the failed work station of work station and the size of preset number of more described access point association, if the number of failed work station is greater than described preset number, and the load of described access point and little, the described access point of the interference of other adjacent area access point is not reached to maximum transmission power, described power regulation module 300 power of described access point that raises, otherwise do not carry out power adjustment.
For fear of frequently AP being carried out to power adjustment, reduce user's experience, apparatus of the present invention can also comprise timer module, be used for arranging power and keep timer, judge described power keeps timer whether to arrive Preset Time, and if so, described power regulation module 300 reduces or the described access point power that raises, otherwise described power regulation module 300 is not carried out power adjustment, wherein said power keeps timer to be used for guaranteeing that power keeps stable state in described Preset Time;
Described power regulation module 300 reduce or the power of the described access point that raises after, timer module also, for keeping timer to reset described power, restarts timing.
If AP is for a long time in overload, and when cannot carrying out any load balancing measure, power regulation module 300 of the present invention is also in the time that the load of access point is excessive, reduce the power of described access point, if described access point is minimum emissive power, described power regulation module 300 keeps the power of described access point constant.
Other technical characterictic of apparatus of the present invention is identical with the inventive method, does not repeat them here.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a power regulating method for WLAN (wireless local area network), is characterized in that, comprises step:
Obtain by access point scanning channel the disturbed condition that described access point is subject to, and assess the annoyance level of described access point to other adjacent area access point according to described disturbed condition, wherein said annoyance level comprises that interference is larger, noiseless, it is moderate to disturb;
Obtain the link boundary value of the work station of described access point association, the performance number that wherein said link boundary value receives according to described work station deducts the minimum performance number of accepting and determines;
If it is larger that described access point disturbs other adjacent area access point, according to the minimum emissive power restriction of described link boundary value and described access point, reduce the power of described access point;
If it is moderate that described access point disturbs other adjacent area access point, keep the power of described access point.
2. the power regulating method of WLAN (wireless local area network) according to claim 1, is characterized in that, also comprises step: if described access point is noiseless to other adjacent area access point, and according to the maximum transmit power limit of described access point, the power of the described access point that raises.
3. the power regulating method of WLAN (wireless local area network) according to claim 2, is characterized in that, the power that reduces described access point comprises:
If all real-time update of the link boundary value of each described work station, and described link boundary value be all greater than link boundary threshold and default step-length and, reduce the power of described access point, wherein said link boundary threshold represents that work station is in the threshold value in the weak environment of received power always;
If the link boundary value real-time update of the described work station of part, or exist link boundary value be not more than described link boundary threshold and described default step-length and, do not reduce the power of described access point;
The power of described access point of raising comprises:
If the present load of described access point is larger, keep the power of described access point, otherwise the power of the described access point that raises.
4. the power regulating method of WLAN (wireless local area network) according to claim 1, is characterized in that, also comprises step:
Obtain the adjacent area access point of inefficacy access point;
From the access point of described adjacent area, obtain the new access point that is not maximum transmission power;
Described new access point is increased to maximum transmission power;
And/or:
Cycle is the link boundary value of the work station of new access point association more;
If the link boundary value of work station is less than the number of times of described link boundary threshold and is greater than preset times, this work station is labeled as unsuccessfully to work station;
Whether the number that judges failed work station in the work station of described access point association is greater than preset number, if, and the load of described access point and little, the described access point of the interference of other adjacent area access point is not reached to maximum transmission power, the power of described access point that raises, otherwise do not carry out power adjustment.
5. according to the power regulating method of the WLAN (wireless local area network) described in claim 1 to 4 any one, it is characterized in that, also comprise step: if the load of access point is excessive, reduce the power of described access point, if described access point is minimum emissive power, keep the power of described access point constant;
Before the step of reduction or rising access point power, also comprise step:
Power is set and keeps timer, judge that described power keeps timer whether to arrive Preset Time, if so, reduces or the described access point power that raises, otherwise do not carry out power adjustment, wherein said power keeps timer to be used for guaranteeing that power keeps stable state in described Preset Time;
After the step of reduction or the described access point power that raises, also comprise step:
Keep timer to reset described power, restart timing.
6. a power adjustment apparatus for WLAN (wireless local area network), is characterized in that, comprising:
Annoyance level acquisition module, for obtaining by access point scanning channel the disturbed condition that described access point is subject to, and assess the annoyance level of described access point to other adjacent area access point according to described disturbed condition, wherein said annoyance level comprises that interference is larger, noiseless, it is moderate to disturb;
Link boundary value acquisition module, for obtaining the link boundary value of work station of described access point association, the performance number that wherein said link boundary value receives according to described work station deducts the minimum performance number of accepting and determines;
Power regulation module, in the time that described access point is larger to other adjacent area access point interference, according to the minimum emissive power restriction of described link boundary value and described access point, reduces the power of described access point; At described access point, other adjacent area access point is disturbed when moderate, keep the power of described access point.
7. the power adjustment apparatus of WLAN (wireless local area network) according to claim 6, it is characterized in that, described power regulation module is also in the time that described access point is noiseless to other adjacent area access point, according to the maximum transmit power limit of described access point, and the power of the described access point that raises.
8. the power adjustment apparatus of WLAN (wireless local area network) according to claim 7, is characterized in that, the power that described power regulation module reduces described access point comprises:
If all real-time update of the link boundary value of each described work station, and described link boundary value be all greater than link boundary threshold and default step-length and, described power regulation module reduces the power of described access point, and wherein said link boundary threshold represents that work station is in the threshold value in the weak environment of received power always;
If the link boundary value real-time update of the described work station of part, or exist link boundary value be not more than described link boundary threshold and described default step-length and, described power regulation module does not reduce the power of described access point;
The raise power of described access point of described power regulation module comprises:
If the present load of described access point is larger, described power regulation module keeps the power of described access point, the power of described access point otherwise described power regulation module raises.
9. the power adjustment apparatus of WLAN (wireless local area network) according to claim 6, is characterized in that, also comprises:
Adjacent area access point acquisition module, for obtaining the adjacent area access point of inefficacy access point;
New access point acquisition module, for obtaining the new access point that is not maximum transmission power from described adjacent area access point;
Described new access point is increased to maximum transmission power by described power regulation module;
And/or:
Link boundary value update module, for the more link boundary value of the work station of new access point association of cycle;
Work station mark module, while being greater than preset times, is labeled as unsuccessfully work station by this work station for be less than the number of times of described link boundary threshold at the link boundary value of work station;
Comparison module, for the number of the failed work station of work station and the size of preset number of more described access point association, if the number of failed work station is greater than described preset number, and the load of described access point and little, the described access point of the interference of other adjacent area access point is not reached to maximum transmission power, the described power regulation module power of described access point that raises, otherwise do not carry out power adjustment.
10. according to the power adjustment apparatus of the WLAN (wireless local area network) described in claim 6 to 9 any one, it is characterized in that, also comprise timer module, be used for arranging power and keep timer, judge described power keeps timer whether to arrive Preset Time, and if so, described power regulation module reduces or the described access point power that raises, otherwise described power regulation module is not carried out power adjustment, wherein said power keeps timer to be used for guaranteeing that power keeps stable state in described Preset Time;
After the power of described power regulation module reduction or the described access point that raises, timer module also, for keeping timer to reset described power, restarts timing;
Described power regulation module also, in the time that the load of access point is excessive, reduces the power of described access point, if described access point is minimum emissive power, described power regulation module keeps the power of described access point constant.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162690A (en) * | 2015-04-03 | 2016-11-23 | 池州学院 | A kind of femtocell power variable mechanism |
| WO2016201693A1 (en) * | 2015-06-19 | 2016-12-22 | 华为技术有限公司 | Data transmission method and apparatus |
| CN107438283A (en) * | 2016-05-28 | 2017-12-05 | 富泰华工业（深圳）有限公司 | A kind of personal hot spot device and method with WiFi Power Controls |
| CN107995686A (en) * | 2017-12-07 | 2018-05-04 | 锐捷网络股份有限公司 | Wireless lan channel distribution method, apparatus and system |
| CN108260196A (en) * | 2016-12-28 | 2018-07-06 | 中国移动通信集团北京有限公司 | A kind of transmission power control method and apparatus |
| CN109314932A (en) * | 2016-06-28 | 2019-02-05 | 华为技术有限公司 | A kind of method and device for coordinating area interference |
| CN109889408A (en) * | 2019-02-28 | 2019-06-14 | 广东美的厨房电器制造有限公司 | Wireless signal anti-disturbance method, device, equipment and medium |
| CN111278095A (en) * | 2020-01-20 | 2020-06-12 | 深圳市潮流网络技术有限公司 | Wireless access point power adjusting method and device, computing equipment and storage medium |
| CN111466141A (en) * | 2017-10-18 | 2020-07-28 | 伊耐斯克泰克-计算机科学与技术系统工程研究所 | Interference-aware transmit power control method and apparatus for wireless network of nodes with directional antennas based on IEEE802.11 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204366A (en) * | 2008-09-03 | 2011-09-28 | 汤姆森特许公司 | Method and apparatus for transmit power control in wireless networks |
| CN102572927A (en) * | 2010-12-30 | 2012-07-11 | 中国移动通信集团设计院有限公司 | Method, device and system for base station power distribution |
| CN103139821A (en) * | 2013-03-18 | 2013-06-05 | 京信通信系统（中国）有限公司 | Judging method and judging device for interference source in wireless local area network (WLAN) |
-
2014
- 2014-04-30 CN CN201410183028.3A patent/CN103957586B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204366A (en) * | 2008-09-03 | 2011-09-28 | 汤姆森特许公司 | Method and apparatus for transmit power control in wireless networks |
| CN102572927A (en) * | 2010-12-30 | 2012-07-11 | 中国移动通信集团设计院有限公司 | Method, device and system for base station power distribution |
| CN103139821A (en) * | 2013-03-18 | 2013-06-05 | 京信通信系统（中国）有限公司 | Judging method and judging device for interference source in wireless local area network (WLAN) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162690A (en) * | 2015-04-03 | 2016-11-23 | 池州学院 | A kind of femtocell power variable mechanism |
| CN107431954B (en) * | 2015-06-19 | 2020-07-24 | 华为技术有限公司 | Data transmission method and device |
| WO2016201693A1 (en) * | 2015-06-19 | 2016-12-22 | 华为技术有限公司 | Data transmission method and apparatus |
| CN107431954A (en) * | 2015-06-19 | 2017-12-01 | 华为技术有限公司 | Data transmission method and device |
| CN107438283A (en) * | 2016-05-28 | 2017-12-05 | 富泰华工业（深圳）有限公司 | A kind of personal hot spot device and method with WiFi Power Controls |
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| CN109314932A (en) * | 2016-06-28 | 2019-02-05 | 华为技术有限公司 | A kind of method and device for coordinating area interference |
| CN108260196A (en) * | 2016-12-28 | 2018-07-06 | 中国移动通信集团北京有限公司 | A kind of transmission power control method and apparatus |
| CN111466141A (en) * | 2017-10-18 | 2020-07-28 | 伊耐斯克泰克-计算机科学与技术系统工程研究所 | Interference-aware transmit power control method and apparatus for wireless network of nodes with directional antennas based on IEEE802.11 |
| CN111466141B (en) * | 2017-10-18 | 2023-07-14 | 伊耐斯克泰克-计算机科学与技术系统工程研究所 | Transmission power control method, device and nonvolatile storage medium |
| CN107995686A (en) * | 2017-12-07 | 2018-05-04 | 锐捷网络股份有限公司 | Wireless lan channel distribution method, apparatus and system |
| CN107995686B (en) * | 2017-12-07 | 2020-09-25 | 锐捷网络股份有限公司 | Wireless local area network channel allocation method, device and system |
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