CN105744615A - Method and Device for Dynamically Adjusting Transmission Power of WLAN Access Points - Google Patents
Method and Device for Dynamically Adjusting Transmission Power of WLAN Access Points Download PDFInfo
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- CN105744615A CN105744615A CN201610221880.4A CN201610221880A CN105744615A CN 105744615 A CN105744615 A CN 105744615A CN 201610221880 A CN201610221880 A CN 201610221880A CN 105744615 A CN105744615 A CN 105744615A
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- wlan access
- access equipment
- transmitting power
- wireless terminal
- accessible
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- 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
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a method and device for dynamically adjusting transmission power of WLAN access points, which is applied to a wireless network comprising a plurality of WLAN access points and supporting wireless roaming. The method comprises: setting the transmission powers of all WALN access points at a maximum transmission power; acquiring the number of accessible wireless terminals in a user area which can be covered by individual WLAN access point; judging whether a corresponding WLAN access point exceeds a transmission power adjustment triggering value according to the number; if it does, reducing the transmission power of the WLAN access point which exceeds the transmission power adjustment triggering value. The method and device in the present invention realize independent adjustment of the transmission powers of WLAN access points according to the number of accessible users, so as to ensure the user experience.
Description
Technical field
The present invention relates to communication technical field, particularly relate to method and device that a kind of WLAN (WIFI) access device transmitting power dynamically adjusts.
Background technology
Along with the development of the Internet and wireless network, the application of commercial wireless network is more and more general, and the trace of commercial wireless network can be found in the streets and lanes in city.In the exhibition that some are large-scale, sponsor generally all can provide free wireless Internet services.But often occurring some hot spot regions in exhibition, owing to number of netizens is too many, machine utilization is too big, user or do not connect network, otherwise networking speed is very slow after connecting；And some colder regions, then owing to number of netizens is few, equipment does not substantially have much loads.It is desirable that situation about occurring is, there is not too many wireless terminal to use wireless network in the place that people is many, to ensure that the online accessing user is experienced, and in the few place of people it is desirable that as far as possible many wireless terminals can be had to use equipment, the pressure of heavy traffic equipment can be shared, utilize Internet resources fully, make whole wireless network use and optimized.
And in the prior art, the transmitting power of equipment of itself is adjusted generally by monitoring user data transmission quality or surrounding neighbours transmitting power of equipment situation, and the problem that the user communication quality that this scheme can only solve to cause because of signal disturbing declines, above-mentioned uneven due to user distribution situation and the access that causes and online quality problems can not be solved.
In actual applications, being usually access customer number increases, then tune up transmitting power access customer number and reduce, then reduce transmitting power.But, this mode can not the quantity of wireless terminal around monitor in real time, and the maximum transmission power of WLAN access equipment is certain, cannot solve and a large amount of wireless terminals that cause too many due to around wireless terminal quantity in this way cannot the problem of access device online.
So, it is provided that a kind of dynamic emission power regulating method based on wireless terminal number around or equipment, to ensure quality and the Experience Degree that user surfs the Net, become current problem demanding prompt solution.
Summary of the invention
In view of the above problems, the application describes a kind of method that WLAN access equipment transmitting power dynamically adjusts, and is applied to include multiple described WLAN access equipment and support the wireless network of radio roaming, and described method includes:
The transmitting power of all described WLAN access equipments is set to maximum transmission power；
The wireless terminal of multiple accessible wireless network is provided, obtains the accessible described wireless terminal quantity in the user area that each described WLAN access equipment can cover；
There is provided a transmitting power being associated with accessible described wireless terminal quantity to adjust trigger value, judge according to described quantity whether the described WLAN access equipment of correspondence adjusts trigger value beyond described transmitting power；
If adjusting trigger value beyond described transmitting power, reduce the transmitting power of the described WLAN access equipment adjusting trigger value beyond described transmitting power.
It is also preferred that the left it is the quantity that described WLAN access equipment is at best able to the described wireless terminal accessed that described transmitting power adjusts trigger value.
Preferably, the one adjustment gradient table being associated with the accessible described wireless terminal quantity of described WLAN access equipment is provided, in reducing the process of transmitting power of the described WLAN access equipment adjusting trigger value beyond described transmitting power, according to described adjustment gradient table, the transmitting power of described WLAN access equipment is adjusted.
It is also preferred that the left described adjustment gradient table includes the transmitting power of the accessible described wireless terminal quantity of described WLAN access equipment one to one and described WLAN access equipment.
It is also preferred that the left in described adjustment gradient table, the described wireless terminal quantity that described WLAN access equipment can be accessed by is more many, the transmitting power of corresponding described WLAN access equipment is more low.
It is also preferred that the left described method further comprises the steps of:
The described wireless terminal quantity accessible in described WLAN access equipment adjusts trigger value lower than described transmitting power, and the transmitting power of described WLAN access equipment lower than described maximum transmission power time, improve the transmitting power of described WLAN access equipment.
It is also preferred that the left the transmitting power of described WLAN access equipment is increased to described maximum transmission power.
It is also preferred that the left by receiving from the probe requests thereby message within the scope of the described user area that described WLAN access equipment covers, dynamically monitor the quantity of described wireless terminal accessible in described user area.
Present invention also offers the device that a kind of WLAN access equipment transmitting power dynamically adjusts, be applied to include multiple described WLAN access equipment and support the wireless network of radio roaming, described device includes:
Unit is set, is connected with described WLAN access equipment, in order to the transmitting power of described WLAN access equipment is set to maximum transmission power；
Acquiring unit, is connected in the described unit that arranges, in order to obtain the quantity of described wireless terminal accessible in the user area that each described WLAN access equipment covers；
First judging unit, is connected with described acquiring unit, in order to judge whether described WLAN access equipment adjusts trigger value beyond transmitting power according to the quantity of the accessible described wireless terminal of WLAN access equipment each described；
Memory element, in order to store the adjustment gradient table of each described WLAN access equipment；
Adjustment unit, it is connected with described first judging unit and described memory element respectively, it is used to the quantity of the accessible described wireless terminal of described WLAN access equipment when adjusting trigger value beyond described transmitting power, reduces the transmitting power of described WLAN access equipment according to described adjustment gradient table.
It is also preferred that the left described device also includes:
Second judging unit, is connected with described acquiring unit, and whether the quantity in order to judge described wireless terminal adjusts trigger value lower than described transmitting power；
3rd judging unit, in order to judge that whether the transmitting power of described WLAN access equipment is lower than described maximum transmission power；
Wherein, described adjustment unit, when the quantity of the described wireless terminal that described WLAN access equipment can be accessed by adjusts the transmitting power of trigger value and described WLAN access equipment lower than described maximum transmission power lower than described transmitting power, improves the transmitting power of described WLAN access equipment.
Technique scheme has the advantage that or beneficial effect: with it, achieve the transmitting power adjusting WLAN access equipment that the quantity according to accessible user is autonomous, and then ensure that the Experience Degree of user.
Accompanying drawing explanation
With reference to appended accompanying drawing, to describe embodiments of the invention more fully.But, appended accompanying drawing is merely to illustrate and sets forth, is not intended that limitation of the scope of the invention.
Fig. 1 is the schematic flow sheet one of the method that a kind of WLAN access equipment transmitting power of the present invention dynamically adjusts；
Fig. 2 is the structural representation one of a kind of WLAN access equipment transmitting power dynamic adjusting device of the present invention；
Fig. 3 is the structural representation two of a kind of WLAN access equipment transmitting power dynamic adjusting device of the present invention.
Detailed description of the invention
The method and the device that a kind of WLAN access equipment transmitting power of the present invention are dynamically adjusted below in conjunction with the drawings and specific embodiments are described in detail.
Embodiment one
As it is shown in figure 1, a kind of method that WLAN access equipment transmitting power dynamically adjusts, the method is applied to include multiple WLAN access equipment and support the wireless network of radio roaming, and specifically, the method includes:
The transmitting power of all WLAN access equipments is set to maximum transmission power；
The wireless terminal of multiple accessible wireless network is provided, obtains the quantity of wireless terminal accessible in the user area that each WLAN access equipment covers；
There is provided a transmitting power being associated with accessible wireless terminal quantity to adjust trigger value, judge whether WLAN access equipment corresponding to this region adjusts trigger value beyond transmitting power according to the quantity of the accessible wireless terminal in each user area；
If reaching, then the transmitting power of the WLAN access equipment adjusting trigger value beyond transmitting power is adjusted, namely reduces the transmitting power of this WLAN access equipment；Otherwise, do not process.
Specifically, the method that the WLAN access equipment transmitting power that the present embodiment proposes dynamically adjusts, it is applied to support the wireless network of radio roaming, and this network is provided with multiple WLAN access device.First have to the transmitting power by all of WLAN access equipment and be set to maximum transmission power.In actual applications, particularly in business circles, the use of business WIFI is more and more extensive, in order to ensure area coverage, so to be generally respectively provided with WLAN access equipment in different places, enough extensive to ensure the WIFI region that can cover.So, in the method, first have to arrange maximum by the transmitting power of all of WLAN access equipment, maximum to ensure the user area that each WLAN access equipment covers.
After ensure that user area that each WLAN access equipment covers is maximum, according to this quantity, the quantity of the accessible wireless terminal in real time or in the user area of each WLAN access equipment of timing acquisition covering, then judges whether the WLAN access equipment in this user area reaches transmitting power and adjust trigger value.It is worthy of note, the transmitting power that the present embodiment proposes adjusts trigger value and refers to when WLAN access equipment is at best able to the quantity of the equipment accessing or bearing.So after WLAN access equipment adjusts trigger value beyond transmitting power, if the wireless terminal then illustrated in this user area, WLAN access equipment place can not all access this WLAN access equipment simultaneously, the suitable transmitting power to this WLAN access equipment is then now needed to be adjusted, to reduce the user area of its covering, and then reduce the quantity of the wireless terminal having access to this WLAN access equipment.
By this method of adjustment, when WLAN access equipment adjusts trigger value beyond transmitting power, this WLAN access equipment is adjusted, have access to, to reduce, the user area that this WLAN access equipment covers, and then reduce the quantity of the wireless terminal having access to.In actual applications, when all of WLAN access equipment is both configured to maximum transmission power, wireless signal in some region is overlapping, so after reducing one of them or the transmitting power of several WLAN access equipment, wireless signal quantity in wireless signal overlapping region reduces, user in this region can be autonomous the spendable WLAN access equipment of selection, the WLAN access equipment of transmitting power adjustment is carried out without reselection, and then ensure that the WLAN access equipment carrying out transmitting power adjustment can provide good wireless signal for all users in its nucleus.When user distribution is uneven, utilizes the automatic adjustment the method achieving WLAN access equipment overlay area, and then improve the Experience Degree of user.
Further, according in the process that WLAN access equipment transmitting power is adjusted by the wireless terminal quantity in user area, it is according to adjustment gradient table, WLAN access equipment transmitting power is adjusted.
Specifically, because in actual applications, the transmitting power that the wireless terminal quantity in user area is compared adjusts the quantity that trigger value is corresponding, it is possible to have more one or two, it is also possible to have more a lot of.So, if adjusting mode according to unified transmitting power to carry out transmitting power adjustment, it is possible to cause the wireless terminal quantity in the user area that the WLAN access equipment after adjustment covers too much or very few.In order to solve this problem, in the present embodiment, it is provided that one adjusts gradient table, and the transmitting power of WLAN access equipment is adjusted by WLAN access equipment according to this adjustment gradient table.
Further, adjust gradient table and include the transmitting power of the accessible wireless terminal quantity of WLAN access equipment one to one and described WLAN access equipment.
In actual applications, after wireless terminal quantity accessible in the user area that WLAN access equipment covers being detected, search and adjust the transmission power information that in gradient table, this quantity is corresponding, and adjust the transmitting power of this WLAN access equipment according to this transmission power information.In general, accessible wireless terminal quantity is more many, then the transmitting power of corresponding WLAN access equipment is more low.
Further, described method further comprises the steps of:
Adjust, lower than transmitting power, the quantity that trigger value is corresponding in the accessible wireless terminal quantity of WLAN access equipment, and the transmitting power of this WLAN access equipment lower than maximum transmission power time, improve the transmitting power of this WLAN access equipment.
Specifically, when accessible wireless terminal quantity is too much, WLAN access equipment reduces transmitting power according to adjusting gradient table, but due to wireless terminal quantity not necessarily, namely can change over time, so when accessible wireless terminal quantity reduces, WLAN access equipment also keeps same transmitting power, and be unfavorable for the access of other wireless terminal device causing waste.So, in the method that the present embodiment provides, need to monitor in real time or regularly the wireless terminal device quantity that WLAN access equipment is accessible, once find that this quantity have dropped, and the transmitting power of now WLAN access equipment is not also maximum transmission power, then be accomplished by the transmitting power adjusting WLAN access equipment to maximum.This adjustment mode, it is ensured that WLAN access equipment expands the user area scope covered when accessible quantity is few, and then improves the quantity of accessible wireless terminal device, it is ensured that the Experience Degree of user.
Further, the probe requests thereby message (ProbeRequest message) of the WLAN access equipment user area from its covering by receiving, dynamically monitor wireless terminal quantity accessible in this user area.
The method that illustrating below provides the present embodiment is described in detail:
In a commerce area, being provided with the first WLAN access equipment and the second WLAN access equipment, the two WLAN access equipment all opens the dynamic emission power adjustment functions based on wireless terminal accessible around.Wherein, the initial wireless transmitting power of the two WLAN access equipment is P0, i.e. maximum transmission power, and the region at the 3rd wireless terminal place can be covered, i.e. the 3rd selectable access the first WLAN access equipment of wireless terminal or the second WLAN access equipment.In addition, first WLAN access equipment and the second WLAN access equipment have identical transmitting power and adjust gradient table, namely when wireless terminal quantity accessible in the user area covered reaches 3, the transmitting power reducing WIFI is P1, under P1 transmitting power, the first WLAN access equipment can not cover the 3rd equipment.
Based on above-mentioned condition, when adopting the transmitting power of P0, the first WLAN can cover the first equipment, the second equipment and three wireless terminals of the 3rd equipment, and the second WLAN can cover the 3rd equipment and two wireless terminals of the 4th equipment.When not opening based on accessible wireless terminal number dynamic emission power adjustment functions around, the wireless terminal being likely to occur accesses situation, first equipment, the second equipment and the 3rd equipment all access the first WLAN, 4th equipment accesses the second WLAN, and this results in the unbalanced of Radio Resource use.
When opening based on accessible wireless terminal number dynamic emission power adjustment functions around, around first WLAN, accessible wireless terminal has 3, having reached transmitting power and adjusted trigger value, then radio transmitted power is adjusted at P1 by the first WLAN automatically.Around second WLAN, accessible wireless terminal number is 2, adjusts trigger value not up to transmitting power, still adopts the transmitting power of P0, do not adjust.First WLAN under P1 transmitting power around accessible wireless terminal be the first equipment, the second equipment, the wireless terminal that the second WLAN around can be accessed by under P0 transmitting power is the 3rd equipment, the 4th equipment.When wireless terminal the second equipment from the first WLAN when moving about around the second WLAN, first WLAN adjust transmitting power be P0, second WLAN adjust transmitting power be P1.The wireless terminal that first WLAN covers after transmitting power adjustment is the first equipment, the 3rd equipment, and the wireless terminal that the second WLAN covers is the second equipment, the 4th equipment.That so adjust as a result, it is possible to make commercial wireless local network resource reach the balanced purpose used, the access that also can improve user is experienced.
Embodiment two
The method that WLAN access equipment transmitting power according to above-described embodiment proposition dynamically adjusts, the device that a kind of WLAN access equipment transmitting power that the present embodiment proposes dynamically adjusts.
As in figure 2 it is shown, the device that a kind of WLAN access equipment transmitting power dynamically adjusts, including:
Unit 1 is set, is connected with all of WLAN access equipment, in order to the transmitting power of WLAN access equipment is set to maximum transmission power；
Acquiring unit 2, is connected in the described unit 1 that arranges, in order to obtain the quantity of wireless terminal accessible in the user area that each WLAN access equipment covers；
First judging unit 3, is connected with described acquiring unit 2, judges whether this WLAN access equipment adjusts trigger value beyond transmitting power in order to the quantity of the accessible wireless terminal according to each WLAN access equipment；
Adjustment unit 4, is connected with described first judging unit 3, is used to the quantity of the accessible wireless terminal of WLAN access equipment when adjusting trigger value beyond transmitting power, according to the transmitting power adjusting gradient table and reducing WLAN access equipment.
Specifically, in the device that the present embodiment provides, first passing through and arrange unit 1 transmitting power of all of WLAN access equipment is set to maximum transmission power, acquiring unit 2 is in real time or the quantity of the wireless terminal that can be accessed by the user area that covers of each WLAN access equipment of timing acquisition.Afterwards, according to this quantity, first judging unit 3 judges whether WLAN access equipment adjusts trigger value beyond transmitting power, if occurring, a certain or several WLAN access equipment adjusts trigger value beyond transmitting power, then utilize adjustment unit 4 to adjust the transmitting power of WLAN access equipment.
Further, as it is shown on figure 3, this device also includes a memory element 5, this memory element 5 is connected with adjustment unit 4, in order to store adjustment gradient table.Operationally, adjustment unit 4 adjusts table according to judged result and gradient and adjusts the transmitting power of WLAN access equipment.
Further, this device also includes:
Second judging unit 6, is connected with acquiring unit 2 and adjustment unit 4 respectively, in order to judge whether wireless terminal quantity adjusts, lower than transmitting power, the quantity that trigger value is corresponding；
3rd judging unit 7, with adjustment unit 4 in order to judge that the transmitting power of WLAN access equipment is lower than maximum transmission power.
Wherein, adjustment unit 4 adjusts, lower than transmitting power, the quantity that trigger value is corresponding in the wireless terminal quantity that WLAN access equipment is accessible, and the transmitting power of this WLAN access equipment lower than maximum transmission power time, improve the transmitting power of this WLAN access equipment.
Specifically, when accessible wireless terminal quantity is too much, adjustment unit 4 reduces transmitting power according to adjusting gradient table, but due to wireless terminal quantity not necessarily, namely can change over time, so when accessible wireless terminal quantity reduces, WLAN access equipment also keeps same transmitting power, and be unfavorable for the access of other wireless terminal device causing waste.So, in the device that the present embodiment provides, acquiring unit 2 monitors the wireless terminal device quantity that WLAN access equipment is accessible in real time or regularly, and judged whether wireless terminal quantity adjusts, lower than transmitting power, the quantity that trigger value is corresponding by the second judging unit 6, once find that this quantity have dropped, 3rd judging unit 7 judges that the transmitting power of now WLAN access equipment is not also maximum transmission power, then is accomplished by adjustment unit 4 and improves the transmitting power of WLAN access equipment.This mode makes WLAN access equipment expand the user area scope covered when accessible quantity is few, and then improves the quantity of accessible wireless terminal device, it is ensured that the Experience Degree of user.
For a person skilled in the art, after reading described above, various changes and modifications will be apparent to undoubtedly.Therefore, appending claims should regard whole variations and modifications of the true intention containing the present invention and scope as.In Claims scope, the scope of any and all equivalence and content, be all considered as still belonging to the intent and scope of the invention.
Claims (10)
1. the method that WLAN access equipment transmitting power dynamically adjusts, is applied to include multiple described WLAN access equipment and support the wireless network of radio roaming, it is characterised in that described method includes:
The transmitting power of all described WLAN access equipments is set to maximum transmission power；
The wireless terminal of multiple accessible wireless network is provided, obtains the accessible described wireless terminal quantity in the user area that each described WLAN access equipment can cover；
There is provided a transmitting power being associated with accessible described wireless terminal quantity to adjust trigger value, judge according to described quantity whether the described WLAN access equipment of correspondence adjusts trigger value beyond described transmitting power；
If adjusting trigger value beyond described transmitting power, reduce the transmitting power of the described WLAN access equipment adjusting trigger value beyond described transmitting power.
2. the method that WLAN access equipment transmitting power according to claim 1 dynamically adjusts, it is characterised in that it is the quantity that described WLAN access equipment is at best able to the described wireless terminal accessed that described transmitting power adjusts trigger value.
3. the method that WLAN access equipment transmitting power according to claim 1 dynamically adjusts, it is characterized in that, the one adjustment gradient table being associated with the accessible described wireless terminal quantity of described WLAN access equipment is provided, in reducing the process of transmitting power of the described WLAN access equipment adjusting trigger value beyond described transmitting power, according to described adjustment gradient table, the transmitting power of described WLAN access equipment is adjusted.
4. the method that WLAN access equipment transmitting power according to claim 3 dynamically adjusts, it is characterized in that, described adjustment gradient table includes the transmitting power of the accessible described wireless terminal quantity of described WLAN access equipment one to one and described WLAN access equipment.
5. the method that WLAN access equipment transmitting power according to claim 4 dynamically adjusts, it is characterized in that, in described adjustment gradient table, the described wireless terminal quantity that described WLAN access equipment can be accessed by is more many, and the transmitting power of corresponding described WLAN access equipment is more low.
6. the method that WLAN access equipment transmitting power according to claim 1 dynamically adjusts, it is characterised in that described method further comprises the steps of:
The described wireless terminal quantity accessible in described WLAN access equipment adjusts trigger value lower than described transmitting power, and the transmitting power of described WLAN access equipment lower than described maximum transmission power time, improve the transmitting power of described WLAN access equipment.
7. the method that WLAN access equipment transmitting power according to claim 6 dynamically adjusts, it is characterised in that the transmitting power of described WLAN access equipment is increased to described maximum transmission power.
8. the method that WLAN access equipment transmitting power according to claim 1 dynamically adjusts, it is characterized in that, by receiving from the probe requests thereby message within the scope of the described user area that described WLAN access equipment covers, dynamically monitor the quantity of described wireless terminal accessible in described user area.
9. the device that WLAN access equipment transmitting power dynamically adjusts, is applied to include multiple described WLAN access equipment and support the wireless network of radio roaming, it is characterised in that described device includes:
Unit (1) is set, is connected with described WLAN access equipment, in order to the transmitting power of described WLAN access equipment is set to maximum transmission power；
Acquiring unit (2), is connected in the described unit (1) that arranges, in order to obtain the quantity of described wireless terminal accessible in the user area that each described WLAN access equipment covers；
First judging unit (3), it is connected with described acquiring unit (2), in order to judge whether described WLAN access equipment adjusts trigger value beyond transmitting power according to the quantity of the accessible described wireless terminal of WLAN access equipment each described；
Memory element (5), in order to store the adjustment gradient table of each described WLAN access equipment；
Adjustment unit (4), it is connected with described first judging unit (3) and described memory element (5) respectively, it is used to the quantity of the accessible described wireless terminal of described WLAN access equipment when adjusting trigger value beyond described transmitting power, reduces the transmitting power of described WLAN access equipment according to described adjustment gradient table.
10. the device that WLAN access equipment transmitting power according to claim 9 dynamically adjusts, it is characterised in that described device also includes:
Second judging unit (6), is connected with described acquiring unit (2) and described adjustment unit (4) respectively, and whether the quantity in order to judge described wireless terminal adjusts trigger value lower than described transmitting power；
3rd judging unit (7), is connected with described adjustment unit (4), in order to judge that whether the transmitting power of described WLAN access equipment is lower than described maximum transmission power；
Wherein, described adjustment unit (4), when the quantity of the described wireless terminal that described WLAN access equipment can be accessed by adjusts the transmitting power of trigger value and described WLAN access equipment lower than described maximum transmission power lower than described transmitting power, improves the transmitting power of described WLAN access equipment.
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| CN201610221880.4A CN105744615A (en) | 2016-04-11 | 2016-04-11 | Method and Device for Dynamically Adjusting Transmission Power of WLAN Access Points |
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| CN201610221880.4A CN105744615A (en) | 2016-04-11 | 2016-04-11 | Method and Device for Dynamically Adjusting Transmission Power of WLAN Access Points |
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