CN107396430B - Power adjusting method and device - Google Patents

Power adjusting method and device Download PDF

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Publication number
CN107396430B
CN107396430B CN201610327995.1A CN201610327995A CN107396430B CN 107396430 B CN107396430 B CN 107396430B CN 201610327995 A CN201610327995 A CN 201610327995A CN 107396430 B CN107396430 B CN 107396430B
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coverage
power
access request
determining
sta
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CN107396430A (en
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李飞
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ZTE Corp
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ZTE Corp
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Priority to CN201610327995.1A priority Critical patent/CN107396430B/en
Priority to PCT/CN2016/109946 priority patent/WO2017197879A1/en
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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
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • 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
    • H04W52/02—Power saving arrangements
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/283—Power depending on the position of the mobile
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method and a device for adjusting power, wherein the method comprises the following steps: determining the distance between a station STA to be accessed to an access point AP and the AP; and adjusting the power of the AP according to the distance. According to the invention, the power of the AP can be adjusted according to the distance between the STA and the AP, so that reasonable power can be determined, and power waste caused by overlarge power is avoided. Therefore, the problem of power waste in the related art can be solved, and the effect of saving resources is achieved.

Description

Power adjusting method and device
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for adjusting power.
Background
In the related art, a power saving method of Ufi (e.g., Access Point (AP) for short) is mainly dormant, and the triggering conditions of the dormancy are as follows: the existing access number is inquired on the Ufi equipment, and if no terminal is accessed to the Ufi equipment, the equipment can be in dormancy.
That is, the access point of the hibernation function of the Ufi in the related art is terminal access or not, and even if there is one terminal access, the Ufi does not enter hibernation, that is, the contribution of the hibernation function to power saving is zero. Thereby causing a waste of power.
In view of the above problems, no effective solution has been proposed in the related art.
Disclosure of Invention
The embodiment of the invention provides a power adjusting method and device, which are used for at least solving the problem of power waste in the related art.
According to an embodiment of the present invention, there is provided a power adjustment method, including: determining the distance between a station STA to be accessed to an access point AP and the AP; and adjusting the power of the AP according to the distance.
Optionally, determining a distance between the station STA to access the access point AP and the AP includes: acquiring an access request from the STA, wherein the access request is used for requesting access to the AP, and the access request carries initial power when the STA sends the access request; determining a first receive power at which the access request is received; and determining the distance between the STA and the AP according to the initial power and the first received power.
Optionally, adjusting the power of the AP according to the distance includes: adjusting the coverage of the AP into a first coverage, and acquiring second receiving power for receiving an access request from the STA under the first coverage, wherein the radius of the first coverage is larger than the distance by a first preset value; adjusting the coverage of the AP into a second coverage, and acquiring third receiving power for receiving an access request from the STA under the second coverage, wherein the radius of the second coverage is smaller than the distance by a second preset value; comparing the second received power with the third received power, and determining the coverage of the AP according to the comparison result; and adjusting the power of the AP according to the determined coverage range of the AP.
Optionally, determining the coverage of the AP according to the comparison result includes: when the comparison result is that the difference between the second received power and the third received power is smaller than a first difference value, determining that the coverage area of the AP is the second coverage area; and/or determining that the coverage area of the AP is the first coverage area when the comparison result shows that the difference between the second received power and the third received power is greater than or equal to a first difference value.
Optionally, after determining that the coverage of the AP is the second coverage, the method further includes: repeatedly performing the operation of narrowing the coverage range until the difference between the receiving power of the access request received in the narrowed coverage range and the receiving power of the access request received in the coverage range before narrowing is greater than or equal to the first difference, and determining the coverage range of the AP as the coverage range before narrowing last time; wherein the operation of narrowing the coverage comprises: narrowing the coverage of the AP; acquiring the receiving power of the access request received from the STA under the reduced coverage; and comparing the sizes of the received power of the access request before and after the coverage area of the AP is reduced.
According to an embodiment of the present invention, there is provided a power adjustment apparatus including: the determining module is used for determining the distance between a station STA to be accessed to the AP and the AP; and the adjusting module is used for adjusting the power of the AP according to the distance.
Optionally, the determining module includes: an obtaining unit, configured to obtain an access request from the STA, where the access request is used to request access to the AP, and the access request carries an initial power of the STA when sending the access request; a first determining unit, configured to determine a first reception power for receiving the access request; a second determining unit, configured to determine a distance between the STA and the AP according to the initial power and the first received power.
Optionally, the adjusting module includes: a first processing unit, configured to adjust a coverage of the AP to a first coverage, and acquire a second reception power for receiving an access request from the STA in the first coverage, where a radius of the first coverage is larger than the distance by a first predetermined value; a second processing unit, configured to adjust a coverage of the AP to a second coverage, and acquire a third reception power for receiving an access request from the STA in the second coverage, where a radius of the second coverage is smaller than the distance by a second predetermined value; a third determining unit, configured to compare the second received power and the third received power, and determine a coverage area of the AP according to a comparison result; and the adjusting unit is used for adjusting the power of the AP according to the determined coverage area of the AP.
Optionally, the determining unit includes: a determining subunit, configured to determine, when the comparison result is that the difference between the second received power and the third received power is smaller than a first difference, that the coverage area of the AP is the second coverage area; and/or determining that the coverage area of the AP is the first coverage area when the comparison result shows that the difference between the second received power and the third received power is greater than or equal to a first difference value.
Optionally, the adjusting module further includes a third processing unit, configured to, after determining that the coverage area of the AP is the second coverage area, perform the following processing: repeatedly performing the operation of narrowing the coverage range until the difference between the receiving power of the access request received in the narrowed coverage range and the receiving power of the access request received in the coverage range before narrowing is greater than or equal to the first difference, and determining the coverage range of the AP as the coverage range before narrowing last time; wherein the operation of narrowing the coverage comprises: narrowing the coverage of the AP; acquiring the receiving power of the access request received from the STA under the reduced coverage; and comparing the sizes of the received power of the access request before and after the coverage area of the AP is reduced.
According to still another embodiment of the present invention, there is also provided a storage medium. The storage medium is configured to store program code for performing the above steps.
According to the invention, the power of the AP can be adjusted according to the distance between the STA and the AP, so that reasonable power can be determined, and power waste caused by overlarge power is avoided. Therefore, the problem of power waste in the related art can be solved, and the effect of saving resources is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a method of adjusting power according to an embodiment of the invention;
fig. 2 is a block diagram of a power adjustment apparatus according to an embodiment of the present invention;
fig. 3 is a block diagram of the structure of the determination module 22 of the power adjustment apparatus according to the embodiment of the present invention;
fig. 4 is a block diagram of the adjusting module 24 of the adjusting apparatus of power according to the embodiment of the present invention;
fig. 5 is a block diagram of the structure of the adjusting unit 46 of the adjusting apparatus of power according to the embodiment of the present invention;
fig. 6 is a block diagram of a preferred structure of the adjusting module 24 in the power adjusting apparatus according to the embodiment of the present invention;
FIG. 7 is a schematic diagram of an application scenario according to an embodiment of the present invention;
fig. 8 is a block diagram of an AP according to an embodiment of the present invention;
fig. 9 is an overall flowchart according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
At present, endurance is an important aspect of product measurement, and as a high-performance Ufi, if the power consumption of the Ufi can be reduced to the maximum extent while the Ufi can effectively support the work of the Ufi, the endurance can be improved to a great extent. At present, the coverage area of the Ufi (described below by taking an AP as an example) is a fixed value, for example, 10 meters, so that if a terminal (i.e., a station STA) to be accessed to the AP is located in an area 5 meters away from the AP, power coverage in the area 5 meters away from the AP to 10 meters away from the AP is actually unnecessary, and if the coverage area of the AP can be appropriately adjusted, for example, the power coverage of the AP is adjusted to 6 meters, the normal access of the terminal can be ensured, electromagnetic radiation outside 6 meters can be reduced, overhead of system broadcasting can be reduced, and the purpose of saving power and being green can be achieved.
In view of the above solutions, an embodiment of the present invention provides a method for adjusting power, and fig. 1 is a flowchart of the method for adjusting power according to the embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, determining the distance between a station STA to be accessed to an access point AP and the AP;
and step S104, adjusting the power of the AP according to the distance.
The AP may perform the above operation, and when the initial power of the AP is set, the power of the AP may be set to be larger (for example, the power of the AP may be set to be the maximum power supported by the AP), so as to ensure that terminals to access the AP are all located within the coverage of the AP.
Through the steps, the power of the AP can be adjusted according to the distance between the STA and the AP, so that reasonable power can be determined, and power waste caused by overlarge power is avoided. Therefore, the problem of power waste in the related art can be solved, and the effect of saving resources is achieved.
In an optional embodiment, the step S102 may determine the distance between the station STA and the AP to access the access point AP by: acquiring an access request from an STA (station), wherein the access request is used for requesting access to an AP (access point), and the access request carries initial power when the STA sends the access request; determining a first receiving power for receiving the access request; and determining the distance between the STA and the AP according to the initial power and the first received power. In this embodiment, since there is a certain distance between the STA and the AP, there may be power attenuation, and there may be attenuation between the initial power and the first received power, so that the distance between the STA and the AP may be determined by using the attenuation between the initial power and the first received power. Alternatively, the determination of the distance may be made according to the following formula:
los is 32.44+20lgd (km) +20lgf (mhz), where Los is transmission loss and can be defined as the ratio of the received power (i.e., the first received power) and the transmitted power (i.e., the initial power), d is the transmission distance, and f is the transmitted power.
In an alternative embodiment, the step S104 may adjust the power of the AP by: adjusting the coverage of the AP to a first coverage whose radius (in the present embodiment, the coverage of the AP is similar to a circle) is larger than the distance by a first predetermined value (the first predetermined value is greater than or equal to 0), and acquiring a second reception power for receiving an access request from the STA in the first coverage; adjusting the coverage of the AP to a second coverage, the radius of which is smaller than the distance by a second predetermined value (the second predetermined value is greater than or equal to 0), and acquiring a third received power for receiving an access request from the STA in the second coverage; comparing the second received power with the third received power, and determining the coverage of the AP according to the comparison result; and adjusting the power of the AP according to the determined coverage range of the AP. In this embodiment, the coverage of the AP may be adjusted to a coverage larger than the distance, and then adjusted to a coverage smaller than the distance. In practical applications, the coverage of the AP may be adjusted to be a coverage smaller than the distance, and then adjusted to be a coverage larger than the distance.
In the above embodiment, the coverage of the AP may be adjusted according to the comparison result as follows: when the comparison result indicates that the difference between the second received power and the third received power is smaller than the first difference (i.e., the coverage in the two cases does not significantly affect the received power, which means that the distance between the STA and the AP is not greater than the second coverage), maintaining the coverage of the AP as the second coverage; and/or when the comparison result shows that the difference between the second received power and the third received power is greater than or equal to the first difference (i.e., the coverage in both cases has a significant effect on the received power, which indicates that the distance between the STA and the AP is greater than the second coverage), adjusting the coverage of the AP to the first coverage.
In an alternative embodiment, there may be a deviation in the distance estimation between the STA and the AP, for example, the distance calculated by the above formula is larger than the actual distance, so in order to determine a reasonable AP coverage, at least one regression (i.e., at least one reduction determination process) needs to be performed on the estimated coverage, that is, there may be a case where more than two regressions are performed, and the following describes performing more than two regressions: after maintaining the coverage of the AP as the second coverage, the method further includes: repeatedly executing the operation of reducing the coverage range until the difference between the receiving power of the access request received in the reduced coverage range and the receiving power of the access request received in the coverage range before reduction is greater than or equal to the first difference, and determining the coverage range of the AP as the coverage range before the last reduction; wherein the operation of narrowing the coverage area comprises: narrowing the coverage of the AP; acquiring the receiving power for receiving an access request from the STA in the reduced coverage range; and comparing the sizes of the received power of the access request before and after the coverage area of the AP is reduced.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In this embodiment, a power adjustment apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and details of which have been already described are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 2 is a block diagram of a power adjustment apparatus according to an embodiment of the present invention, and as shown in fig. 2, the apparatus includes a determination module 22 and an adjustment module 24, and the apparatus is explained as follows:
a determining module 22, configured to determine a distance between a station STA and an access point AP to be accessed; and an adjusting module 24, connected to the determining module 22, for adjusting the power of the AP according to the distance.
Fig. 3 is a block diagram of the determining module 22 of the power adjusting apparatus according to the embodiment of the present invention, and as shown in fig. 3, the determining module 22 includes an obtaining unit 32, a first determining unit 34, and a second determining unit 36, and the determining module 22 is explained as follows:
an obtaining unit 32, configured to obtain an access request from an STA, where the access request is used to request to access the AP, and the access request carries an initial power of the STA when sending the access request; a first determining unit 34, connected to the obtaining unit 32, for determining a first receiving power for receiving the access request; a second determining unit 36, connected to the first determining unit 34, for determining the distance between the STA and the AP according to the initial power and the first received power.
Fig. 4 is a block diagram of the adjusting module 24 of the power adjusting apparatus according to the embodiment of the present invention, and as shown in fig. 4, the adjusting module 24 includes a first processing unit 42, a second processing unit 44, a third determining unit 46 and an adjusting unit 48, and the adjusting module 24 is explained below.
A first processing unit 42, configured to adjust a coverage of the AP to a first coverage, and acquire a second reception power for receiving an access request from the STA in the first coverage, where a radius of the first coverage is larger than the distance by a first predetermined value; a second processing unit 44, connected to the first processing unit 42, configured to adjust a coverage of the AP to a second coverage, and obtain a third received power for receiving an access request from an STA in the second coverage, where a radius of the second coverage is smaller than the distance by a second predetermined value; a third determining unit 46, connected to the second processing unit 44, for comparing the magnitudes of the second received power and the third received power, and determining the coverage area of the AP according to the comparison result; and an adjusting unit 48, connected to the third determining unit 46, for adjusting the power of the AP according to the determined coverage area of the AP.
Fig. 5 is a block diagram of a third determining unit 46 of the power adjusting apparatus according to the embodiment of the present invention, and as shown in fig. 5, the third determining unit 46 includes a determining subunit 52, and the determining subunit 52 is explained as follows:
a determining subunit 52, configured to determine, when the comparison result is that the difference between the second received power and the third received power is smaller than the first difference, that the coverage area of the AP is the second coverage area; and/or determining the coverage area of the AP as a first coverage area when the comparison result shows that the difference between the second received power and the third received power is greater than or equal to a first difference value.
Fig. 6 is a block diagram of a preferred structure of the adjusting module 24 in the power adjusting apparatus according to the embodiment of the present invention, as shown in fig. 6, the adjusting module 24 includes a third processing unit 62 in addition to all modules shown in fig. 4, and the third processing unit 62 is described below:
a third processing unit 62, connected to the third determining unit 46, configured to, after determining that the coverage area of the AP is the second coverage area, perform the following processing: repeatedly executing the operation of reducing the coverage range until the difference between the receiving power of the access request received in the reduced coverage range and the receiving power of the access request received in the coverage range before reduction is greater than or equal to the first difference, and determining the coverage range of the AP as the coverage range before the last reduction; wherein the operation of narrowing the coverage area comprises: narrowing the coverage of the AP; acquiring the receiving power for receiving an access request from the STA in the reduced coverage range; and comparing the sizes of the received power of the access request before and after the coverage area of the AP is reduced.
It should be noted that the above-mentioned apparatuses shown in fig. 2 to fig. 6 can be applied to an AP, and the following description will be given by taking an AP as an example:
fig. 7 is a schematic diagram of an application scenario according to an embodiment of the present invention, as shown in fig. 7, a plurality of STAs are to be accessed to an AP. First, the structure of the AP in the present embodiment is explained, as shown in fig. 8, the AP includes a power-distance quantifying module 82 (corresponding to the above-mentioned determining module 22), a coverage control module 84, a coverage setting module 86(84 and 86 corresponding to the above-mentioned determining unit 46), and a radio access signal detecting module 88 (corresponding to the above-mentioned first processing module 42 and the second processing module 44), and the functions of the modules are explained below with reference to fig. 9:
s1, after the device is powered on and started, the power-distance quantization module 82 and the wireless access signal detection module 88 are initialized, and the coverage range is quantized according to the distance;
s2, the power-distance quantization module 82 collects access request data (corresponding to the access request) sent by each access terminal (corresponding to the STA), and obtains the wireless distance from the STA to the AP according to the distance attenuation with reference to the power; (S1 and S2 correspond to S902 in FIG. 9).
S3, the coverage control module 84 obtains the coverage corresponding to the farthest distance according to the currently collected wireless distance of each access STA, and notifies the coverage setting module 86 to perform setting; (corresponding to S904 in FIG. 9)
S4, the coverage setting module 86 starts working, and informs the wireless access signal detection module 88 to start sampling after setting the corresponding coverage;
s5, the wireless access signal detection module 88 sends the sampled wireless signal to the coverage control module 84, and the coverage control module 84 makes a decision to obtain a coverage value;
s6, repeating S4 and S5 to obtain a stable and convergent coverage range value, and sending the obtained data to the power-distance quantification module 82 for backup reference; the coverage area of the device can be stabilized to a specific value, the normal work of the existing STA can be supported, and unnecessary waste of power is reduced, so that the aim of saving power is fulfilled. (S4-S6 correspond to S906-S918 in FIG. 9)
The following is a detailed description of the above operation flow:
in the embodiment, the power of the AP can be fully utilized, and unnecessary power coverage is reduced, thereby achieving the purpose of saving power for the system. When the AP is accessed based on the terminal (corresponding to the STA), the AP can detect and effectively evaluate the position parameters of the terminal; quantifying the coverage range of the AP side by distance, and acquiring and comparing the position information of the accessed terminal in the same time; notify the coverage setting module 86 to set the coverage of the AP; the AP is provided with a specific application module for acquiring a wireless signal detection module accessed by the existing communication terminal, and the effect of the existing set coverage range is fed back to be used as the basis of the power regulation module.
The estimation of the location parameters of the terminal assumes that the terminal will carry the initial power of data transmission when transmitting access information, so that the wireless distance from the STA to the AP is calculated on the AP side according to the attenuation of the received signal power.
The distance from the STA to the AP can be roughly obtained from the wireless communication distance of the radio-magnetic wave propagating in the free space, where the propagation loss (also called attenuation) of the radio wave is only related to the operating frequency f and the propagation distance d, and the propagation in the free space assumes an ideal transmission condition, but the estimation deviation for the close-range propagation is not too large, and is mainly obtained by the following formula:
los is 32.44+20lgd (km) +20lgf (mhz), where Los is transmission loss, which can be defined as the ratio of received power to transmitted power, d is the transmission distance, and f is the transmitted power.
The AP receives an access request of the STA, acquires the location parameter of the terminal therefrom, and then notifies the coverage setting module 86 to set the coverage of the AP; assuming that the coverage of the terminal can provide a power coverage ranging from 2 meters to 10 meters at 2 meters intervals, the reasonability and validity of the coverage of the set AP needs to be determined by the terminal access signal feedback, counting the signal strength of the access signal at the AP, and maintaining the signal strength information for each STA, which provides credentials to the power adjustment module until the power reaches a stable value, in order to reduce the power consumption as much as possible, the estimated coverage is regressed at least once by one interval, if the estimated distance is 5 meters, the coverage can be set to 6 meters according to the settable value of the existing coverage, and the access signal strength corresponding to the STA is recorded, then the coverage is modulated by 4 meters, and the access signal strength of the STA is recorded, if there is no significant change in the signal strengths of two times, the coverage may continue to be reduced, and if the signal strength is attenuated significantly, the coverage is adjusted to be increased, and the previous coverage is returned to, which indicates that, in addition to the statistical signal strength, it is obviously necessary to pay attention to that the STA can normally access and perform data communication through the AP in the process of the closed-loop feedback, so that the power regulation loop is closed.
The method for achieving the purpose of saving power by automatically adjusting the coverage range based on the distance has the advantages that the access point is the full utilization of the power, in order to better utilize the wireless power, a hardware antenna can be added on the equipment (corresponding to the AP), the receiving and transmitting efficiency of the antenna is improved, the equipment can directionally scan the signals of the existing access channel when being started, so that the STA is roughly positioned, a sector and dimension distribution can be obtained in an access area, finally, the wave beams of all the antennas are all concentrated to the sector where the STA is located, and the power is fully utilized.
The scheme provided by the embodiment of the invention can complement the contribution of the sleep mode to power saving, the sleep mode in the related technology is directed at the scene without STA access, and the embodiment of the invention combines the position of the service target to set a more reasonable value for the coverage range when the STA accesses (as the coverage range of the AP is positively correlated with the power of the AP, a reasonable power value can be set), thereby achieving the purpose of power saving.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for executing the steps in the above method embodiments.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Optionally, in this embodiment, the processor executes the above steps according to program codes stored in the storage medium.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A method for adjusting power, comprising:
an Access Point (AP) determines a first receiving power for receiving an access request according to the access request sent by a Station (STA), wherein the access request carries an initial power when the STA sends the access request;
the AP determines the distance between the STA and the AP according to the initial power and the first received power;
the AP adjusting power according to the distance, comprising:
adjusting the coverage of the AP into a first coverage, and acquiring second receiving power for receiving an access request from the STA under the first coverage, wherein the radius of the first coverage is larger than the distance by a first preset value;
adjusting the coverage of the AP into a second coverage, and acquiring third receiving power for receiving an access request from the STA under the second coverage, wherein the radius of the second coverage is smaller than the distance by a second preset value;
comparing the second received power with the third received power, and determining the coverage of the AP according to the comparison result;
and adjusting the power of the AP according to the determined coverage range of the AP.
2. The method of claim 1, wherein determining the coverage of the AP according to the comparison comprises:
when the comparison result is that the difference between the second received power and the third received power is smaller than a first difference value, determining that the coverage area of the AP is the second coverage area; and/or the presence of a gas in the gas,
and when the comparison result is that the difference between the second received power and the third received power is greater than or equal to a first difference value, determining that the coverage area of the AP is the first coverage area.
3. The method of claim 2, wherein after determining that the coverage of the AP is the second coverage, the method further comprises:
repeatedly performing the operation of narrowing the coverage range until the difference between the receiving power of the access request received in the narrowed coverage range and the receiving power of the access request received in the coverage range before narrowing is greater than or equal to the first difference, and determining the coverage range of the AP as the coverage range before narrowing last time;
wherein the operation of narrowing the coverage comprises: narrowing the coverage of the AP; acquiring the receiving power of the access request received from the STA under the reduced coverage; and comparing the sizes of the received power of the access request before and after the coverage area of the AP is reduced.
4. An apparatus for adjusting power, comprising:
a determining module, configured to determine, according to an access request sent by a station STA, a first receiving power for receiving the access request, where the access request carries an initial power of the STA when sending the access request; determining the distance between the STA and the AP according to the initial power and the first received power;
the adjusting module is used for adjusting power according to the distance;
wherein the adjustment module comprises:
a first processing unit, configured to adjust a coverage of the AP to a first coverage, and acquire a second reception power for receiving an access request from the STA in the first coverage, where a radius of the first coverage is larger than the distance by a first predetermined value;
a second processing unit, configured to adjust a coverage of the AP to a second coverage, and acquire a third reception power for receiving an access request from the STA in the second coverage, where a radius of the second coverage is smaller than the distance by a second predetermined value;
a third determining unit, configured to compare the second received power and the third received power, and determine a coverage area of the AP according to a comparison result;
and the adjusting unit is used for adjusting the power of the AP according to the determined coverage area of the AP.
5. The apparatus of claim 4, wherein the determining unit comprises:
a determining subunit, configured to determine, when the comparison result is that the difference between the second received power and the third received power is smaller than a first difference, that the coverage area of the AP is the second coverage area; and/or determining that the coverage area of the AP is the first coverage area when the comparison result shows that the difference between the second received power and the third received power is greater than or equal to a first difference value.
6. The apparatus of claim 5, wherein the adjusting module further comprises a third processing unit configured to, after determining that the coverage of the AP is the second coverage, perform the following:
repeatedly performing the operation of narrowing the coverage range until the difference between the receiving power of the access request received in the narrowed coverage range and the receiving power of the access request received in the coverage range before narrowing is greater than or equal to the first difference, and determining the coverage range of the AP as the coverage range before narrowing last time;
wherein the operation of narrowing the coverage comprises: narrowing the coverage of the AP; acquiring the receiving power of the access request received from the STA under the reduced coverage; and comparing the sizes of the received power of the access request before and after the coverage area of the AP is reduced.
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