WO2023046080A1 - 第一接入点、第二接入点、由无线网络执行的方法、及存储介质 - Google Patents

第一接入点、第二接入点、由无线网络执行的方法、及存储介质 Download PDF

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WO2023046080A1
WO2023046080A1 PCT/CN2022/120932 CN2022120932W WO2023046080A1 WO 2023046080 A1 WO2023046080 A1 WO 2023046080A1 CN 2022120932 W CN2022120932 W CN 2022120932W WO 2023046080 A1 WO2023046080 A1 WO 2023046080A1
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access point
network performance
performance parameter
value
network
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PCT/CN2022/120932
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English (en)
French (fr)
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谈加杰
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联洲集团有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/26TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/267TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular, to a first access point, a second access point, a method executed by a wireless network, and a storage medium.
  • WLAN wireless local area network
  • the technical problem to be solved by the embodiments of the present disclosure is: a wireless networking system transmission power adjustment method, device, equipment, first access point, second access point, method executed by a wireless network, and a storage medium to reduce wireless group Signal interference of the network system and improve the network performance of the wireless networking system.
  • an embodiment of the present disclosure provides a method for adjusting transmission power of a wireless networking system, the method comprising:
  • the fourth network performance parameter of the AP wherein, the transmission power adjustment strategy includes a transmission power increase, a transmission power reduction, and a transmission power unchanged;
  • the next transmission power adjustment of each AP whose power is to be adjusted is acquired Strategy.
  • the acquiring each of the power to be adjusted according to the first network performance parameter, the second network performance parameter, the third network performance parameter and/or the fourth network performance parameter The next transmit power adjustment strategy of the AP, including:
  • the contribution value of each AP to be adjusted to the network performance improvement of the sub-area corresponding to the AP set whose power is to be adjusted is obtained;
  • a next transmit power adjustment policy of each AP whose power is to be adjusted is acquired according to the contribution value.
  • the acquiring the next transmit power adjustment strategy of each AP whose power is to be adjusted according to the contribution value specifically includes:
  • the next transmission power adjustment strategy is set as a transmission power reduction, and a reduced transmission power value is obtained according to the difference between the second threshold and the contribution value; wherein, the first a second threshold is less than the first threshold;
  • the next transmission power adjustment strategy is set to keep the transmission power unchanged.
  • the first network performance parameter includes one or more of a negotiated rate value, a delay, a packet loss rate, and a packet error rate;
  • the second network performance parameter includes one or more of negotiation rate value, delay, packet loss rate, and packet error rate;
  • the third network performance parameter includes one or more of negotiated rate value, delay, packet loss rate, and packet error rate;
  • the fourth network performance parameter includes one or more of a negotiated rate value, a delay, a packet loss rate, and a packet error rate.
  • selecting N first APs with the highest degree of interference from all APs to form a first AP set specifically includes:
  • the signal strength value of the signal received from the client the background noise, the channel utilization rate, or the signal strength value of the signal received from the neighbor access point to determine the degree of interference of each AP, and according to the degree of interference from Sort APs in descending order;
  • each AP set with power to be adjusted includes M+1 APs with power to be adjusted, the method further includes:
  • the preset range is determined by the following formula:
  • ⁇ P f(d)*(Pmax-Pmin); wherein, ⁇ P is the preset amplitude, f(d) is the adjustment factor, 0 ⁇ f(d) ⁇ 1, Pmax is the maximum transmit power of the AP, and Pmin is The minimum transmit power of the AP.
  • an embodiment of the present disclosure provides a device for adjusting transmission power of a wireless networking system, the device comprising:
  • the first selection module is used to select N first APs with the highest degree of interference from all APs to form a first AP set; where N>0;
  • the second selection module is used to select each first AP in the first AP set as the center, select M second APs adjacent to the first AP to form an AP set with power to be adjusted, and form N to be adjusted.
  • AP set of power, each AP set of power to be adjusted includes M+1 APs of power to be adjusted; where, M>0;
  • a first calculation module configured to obtain a first network performance parameter of a client connected under each AP whose power is to be adjusted and a second network performance parameter of each AP whose power is to be adjusted;
  • the second calculation module is used to randomly select a transmission power adjustment strategy for each AP whose power is to be adjusted, and calculate the adjusted third network performance parameters and adjustments of the clients connected under each AP whose power is to be adjusted The fourth network performance parameter of each AP whose power is to be adjusted later; wherein, the transmission power adjustment strategy includes a transmission power increase, a transmission power reduction, and a transmission power unchanged;
  • a transmit power adjustment module configured to obtain each of the power to be adjusted according to the first network performance parameter, the second network performance parameter, the third network performance parameter and/or the fourth network performance parameter AP's next transmit power adjustment policy.
  • the embodiment of the present disclosure provides a device for adjusting transmission power of a wireless networking system, the device includes a processor and a memory; wherein, a computer program is stored in the memory, and the computer program It is configured to be executed by the processor, and when the processor executes the computer program, the method for adjusting the transmission power of the wireless networking system according to any one of the first aspect is realized.
  • embodiments of the present disclosure provide a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed, any one of the above aspects of the first aspect is implemented.
  • the embodiment of the present disclosure provides a first access point (AP), the first access point is one of the components of the wireless network, and the first access point includes One or more processors, where the one or more processors are configured to: select multiple adjacent to the first access point in response to the interference level of the first access point meeting a preset condition a second access point, determining the first access point and the plurality of second access points as access points constituting a subnetwork of the wireless network; based on an access point connected to the subnetwork The first network performance parameter corresponding to at least one client of the point and/or the second network performance parameter corresponding to at least one access point in the subnetwork, and adjust the transmit power of the first access point.
  • AP first access point
  • the first access point is one of the components of the wireless network
  • the first access point includes One or more processors, where the one or more processors are configured to: select multiple adjacent to the first access point in response to the interference level of the first access point meeting a preset condition a second access point, determining the first access
  • the preset condition is: among all the access points forming the wireless network, the first access point belongs to one of the top N most interfered access points, where N> 0.
  • the degree of interference of the first access point is determined by the signal strength value of the signal received by the first access point from the client, the background noise, the channel utilization rate, and the signal received from the neighbor access point.
  • the signal strength value of the signal is determined.
  • the first access point further includes a transmitter, and the transmitter is further configured to: send a power adjustment instruction to the plurality of second access points, and the power adjustment instruction indicates the The plurality of second access points adjust transmit power.
  • the adjusting the transmit power of the first access point includes: after adjusting the transmit power of the first access point, obtaining at least one client connected to the access point of the subnetwork The third network performance parameter corresponding to the terminal and/or the fourth network performance parameter corresponding to at least one access point in the sub-network; based on the third network performance parameter and/or the fourth network performance parameter, again Adjust the transmit power of the first access point.
  • the adjusting the transmit power of the first access point includes: in response to the first access point sending data packets in a wireless high-rate mode, reducing the transmit power of the first access point to transmit the The transmission power of the data packet: in response to the first access point sending the data packet in the wireless low-rate mode, maintaining the transmission power of the first access point for sending the data packet.
  • the adjusting the transmit power of the first access point includes: randomly adjusting the transmit power of the first access point, and the random adjustment includes: increasing the transmit power of the first access point transmit power of the first access point, reduce the transmit power of the first access point, and maintain the transmit power of the first access point.
  • the readjusting the transmit power of the first access point based on the third network performance parameter and/or the fourth network performance parameter includes based on the first network performance parameter and the fourth network performance parameter.
  • Three network performance parameters determine a first network performance comparison value; and/or determine a second network performance comparison value based on the second network performance parameter and a fourth network performance parameter; and determine a second network performance comparison value based on the first network performance comparison value and /or the second network performance comparison value, determine the contribution value of the transmission power adjustment of the first access point to the network performance improvement of the sub-network, and adjust the first access point again based on the contribution value point transmit power.
  • the adjusting the transmit power of the first access point based on the contribution value includes: in response to the contribution value being greater than a first threshold, based on the contribution value and the first threshold, increase the transmit power of the first access point; in response to the contribution value being less than a second threshold, reduce the first access point based on the difference between the contribution value and the second threshold , wherein the second threshold is less than the first threshold; in response to the contribution being not greater than the first threshold and not less than the second threshold, maintaining the transmission of the first access point power.
  • the embodiment of the present disclosure provides a first access point (AP), where the first access point and multiple second access points together form a sub-network of the wireless network
  • the first access point includes one or more processors, and the one or more processors are configured to: based on a first network performance parameter corresponding to at least one client connected to the access point of the subnetwork and/or a second network performance parameter corresponding to at least one access point in the subnetwork, randomly adjusting the transmit power of the first access point; after adjusting the transmit power of the first access point Obtaining a third network performance parameter corresponding to at least one client connected to an access point of the subnet and/or a fourth network performance parameter corresponding to at least one access point in the subnet; based on the first The third network performance parameter and/or the fourth network performance parameter, adjusting the transmission power of the first access point again.
  • the readjusting the transmit power of the first access point based on the third network performance parameter and/or the fourth network performance parameter includes: based on the first network performance parameter and For a third network performance parameter, determine a first network performance comparison value; and/or determine a second network performance comparison value based on the second network performance parameter and a fourth network performance parameter; and determine a second network performance comparison value based on the first network performance comparison value and/or the second network performance comparison value, determine the contribution value of the transmission power adjustment of the first access point to the network performance improvement of the sub-network, and adjust the first access point again based on the contribution value The transmit power of the entry point.
  • the adjusting the transmit power of the first access point based on the contribution value includes: in response to the contribution value being greater than a first threshold, based on the contribution value and the first threshold, increase the transmit power of the first access point; in response to the contribution value being less than a second threshold, reduce the first access point based on the difference between the contribution value and the second threshold , wherein the second threshold is less than the first threshold; in response to the contribution being not greater than the first threshold and not less than the second threshold, maintaining the transmission of the first access point power.
  • the embodiment of the present disclosure provides a method performed by a wireless network, including: selecting N first APs with the highest degree of interference from all APs forming the wireless network to form the first AP An AP set; wherein, N>0; taking each first AP in the first AP set as the center, selecting M second APs adjacent to the first AP to form N subnetworks, each subnetwork includes One first AP and M second APs; wherein, M>0; for one of the N subnetworks, obtaining the first network performance parameter and/or corresponding to the client connected to the AP in the subnetwork The second network performance parameter corresponding to the AP in the subnetwork; randomly select the transmit power adjustment strategy corresponding to the AP in the subnetwork, and based on the transmit power adjustment strategy, set the The transmission power is adjusted, wherein, the transmission power adjustment strategy includes transmission power increase, transmission power reduction, and transmission power unchanged; statistics of the third network performance parameters of the clients connected to the AP
  • the acquiring the APs in the sub-network according to the first network performance parameter, the second network performance parameter, the third network performance parameter and/or the fourth network performance parameter includes: obtaining the first network performance improvement value of the AP in each sub-network according to the third network performance parameter and the first network performance parameter; and/or according to the fourth network
  • the performance parameter and the second network performance parameter acquire a second network performance improvement value of the sub-network; acquire the network performance improvement value in the sub-network according to the first network performance improvement value and/or the second network performance improvement value
  • the contribution value of the AP to the improvement of the network performance of the sub-network; the next transmission power adjustment strategy of the AP in the sub-network is obtained according to the contribution value.
  • the acquiring the next transmit power adjustment strategy of the AP in the subnet according to the contribution value includes: when the contribution value is greater than a first threshold, setting the next transmit power adjustment strategy to It is defined as an increase in transmission power, and an increased transmission power value is obtained according to the difference between the contribution value and the first threshold value; when the contribution value is less than the second threshold value, the next transmission power adjustment strategy is set as transmission power reduction , and obtain a reduced transmission power value according to the difference between the second threshold and the contribution value; wherein, the second threshold is smaller than the first threshold; when the contribution value is not greater than the first threshold and not less than When the second threshold is reached, the next transmission power adjustment strategy is set as the transmission power remains unchanged.
  • the selecting N first APs with the highest degree of interference from all APs to form the first AP set includes: obtaining signal strength values of signals received from the client between any two APs, Noise floor, channel utilization, and signal strength values of signals received from neighbor access points; The signal strength value of the signal determines the degree of interference of each AP, and sorts the APs in descending order of the degree of interference; select the first N APs from the sorted APs as the first AP.
  • the method further includes: reducing the transmit power of the AP in each of the N subnetworks by a preset range.
  • the embodiment of the present disclosure provides a second access point (AP), the second access point is one of the components of the wireless network, and the second access point includes One or more processors, the one or more processors are configured to: determine that the second access point is The second access point is an access point in a subnetwork centered on the first access point; based on the first network performance parameter corresponding to at least one client connected to the access point of the subnetwork and/or Or the second network performance parameter corresponding to at least one access point in the subnetwork, and adjust the transmit power of the second access point.
  • AP second access point
  • the second access point is one of the components of the wireless network
  • the second access point includes One or more processors, the one or more processors are configured to: determine that the second access point is The second access point is an access point in a subnetwork centered on the first access point; based on the first network performance parameter corresponding to at least one client connected to the access point of the subnetwork and/or Or the second network performance parameter corresponding to at least one access
  • the adjusting the transmission power of the second access point includes: after adjusting the transmission power of the second access point, obtaining at least one client connected to the access point of the subnetwork The third network performance parameter corresponding to the terminal and/or the fourth network performance parameter corresponding to at least one access point in the sub-network; based on the third network performance parameter and/or the fourth network performance parameter, again Adjust the transmit power of the second access point.
  • the readjusting the transmit power of the first access point based on the third network performance parameter and/or the fourth network performance parameter includes: based on the first network performance parameter and For a third network performance parameter, determine a first network performance comparison value; determine a second network performance comparison value based on the second network performance parameter and a fourth network performance parameter; and determine a second network performance comparison value based on the first network performance comparison value and the The second network performance comparison value is the contribution value of the transmission power adjustment of the first access point to the network performance improvement of the sub-network, and the transmission power of the second access point is adjusted again based on the contribution value.
  • FIG. 1 is a schematic flowchart of a preferred embodiment of a method for adjusting transmission power of a wireless networking system according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flow diagram of an example of an embodiment of step S12 in FIG. 1;
  • Fig. 3 is a schematic flow chart of an example of a preferred embodiment of step S110 in Fig. 1;
  • Fig. 4 is a schematic structural diagram of an embodiment of a device for adjusting transmission power in a wireless networking system according to an embodiment of the present disclosure
  • Fig. 5 is a schematic structural diagram of an embodiment of a device for adjusting transmission power in a wireless networking system according to an embodiment of the present disclosure.
  • the main way to reduce signal interference in a wireless networking system is channel deployment and transmission power adjustment.
  • the specific method of channel deployment is: allocate a suitable channel for the wireless AP, so that the overall interference is minimized.
  • the WLAN channel itself in the 2.4G frequency band, there can only be at most three 20MHz bandwidth channels that do not interfere with each other.
  • the intensity of signal interference is still very large.
  • the specific method of transmitting power adjustment is as follows: In the wireless networking system, select the densely placed APs to adjust the transmitting power. The adjustment is based on the signal strength received by the current AP from the neighboring APs. Rate mode and transmit power for all radio protocol frames. However, the direction of AP power adjustment is only determined according to the placement relationship between APs. When some APs are placed densely but the number of clients connected to these APs is very small, reducing the power of these APs will hardly improve network performance. , there is even a risk of reducing network performance.
  • the wireless networking system transmission power adjustment method, device, device, first access point, second access point, method executed by the wireless network, and storage medium provided by the embodiments of the present disclosure reduce signal interference in the wireless networking system And to improve the network performance of the wireless networking system, the beneficial effect is: through the first random adjustment of the transmit power of the AP whose signal is interfered with, dynamically calculate each The degree of influence of the AP on the network performance of its area, and then adjust the transmit power according to the degree of influence, so that each AP in the wireless networking system can work in the global optimal state, thereby reducing the signal of the wireless networking system. Interfere with and improve the network performance of the wireless networking system.
  • Fig. 1 is a schematic flowchart of a preferred embodiment of a method for adjusting transmission power of a wireless networking system provided by the present disclosure.
  • the method includes the following steps:
  • S12 Select N first APs with the highest degree of interference from all APs to form a first AP set; where N>0;
  • S14 Take each first AP in the first AP set as the center, select M second APs adjacent to the first AP to form an AP set with power to be adjusted, and form N AP sets with power to be adjusted, Each set of APs whose power is to be adjusted includes M+1 APs whose power is to be adjusted; where M>0;
  • S18 Randomly select a transmit power adjustment strategy for each AP whose power is to be adjusted, and calculate the adjusted third network performance parameters of the clients connected to each AP whose power is to be adjusted and each adjusted The fourth network performance parameter of the AP that adjusts the power; wherein, the transmission power adjustment strategy includes a transmission power increase, a transmission power reduction, and a transmission power unchanged;
  • S110 Obtain the next transmission of each AP whose power is to be adjusted according to the first network performance parameter, the second network performance parameter, the third network performance parameter and/or the fourth network performance parameter Power adjustment strategy.
  • any network node in the wireless networking system (which may be a central manager, FAP, but not limited to this) sends a channel scanning instruction to each AP in the wireless networking system, and each AP will The scanning information (including channel value and signal strength value) of the current channel is returned to the network node that issued the command. After receiving the scanning information, the network node selects N first APs that are most interfered.
  • the first AP and the second AP can be referred to as APs whose power needs to be adjusted in the future), correspondingly forming N sub-areas in this form, and each sub-area corresponds to a set of APs whose power needs to be adjusted. Then, obtain the first network performance parameters of the clients connected to these APs for each AP to be adjusted in the selected N sub-areas according to the preset time period, and the second network performance parameters of all APs in each sub-area.
  • Network parameters used as parameters for subsequent comparisons. Then, for each AP whose power is to be adjusted, randomly select a power adjustment strategy in which the transmission power is increased, the transmission power is reduced, and the transmission power is unchanged, and the third network of the client connected under each AP to be adjusted is counted. A performance parameter, and an adjusted fourth network performance parameter of all APs in each sub-area. Finally, according to the first network performance parameter, the second network performance parameter, the third network performance parameter and the fourth network performance parameter, the contribution value of each AP to the network performance improvement in the area is calculated, and each AP is calculated according to the contribution value. AP's next transmit power adjustment policy.
  • the embodiment of the present disclosure provides a transmission power adjustment method of a wireless networking system.
  • a transmission power adjustment method of a wireless networking system By randomly adjusting the transmission power of the AP whose signal is interfered with for the first time, it is dynamically calculated according to the information of the client connected to the AP in the wireless networking system.
  • the influence degree of each AP on the network performance of its area and then adjust the transmission power according to the degree of influence, so that each AP in the wireless networking system can work in the global optimal state, thereby reducing the wireless network system. signal interference and improve the network performance of the wireless networking system.
  • the N first APs with the highest degree of interference are selected from all APs to form the first AP set, which specifically includes:
  • S121 Obtain the signal strength value of the signal received from the client between any two APs, the background noise, the channel utilization rate, and the signal strength value of the signal received from the neighbor access point;
  • S122 According to the received signal from the client The signal strength value of the signal, the background noise, the channel utilization rate, or the signal strength value of the signal received from the neighbor access point to determine the degree of interference of each AP, and according to the order of the degree of interference from large to small AP Sorting;
  • S123 Select the first N APs from the sorted APs as the first APs.
  • any network node in the wireless networking system (which may be a central manager or a FAP, but not limited to this) sends a channel scanning command to each AP in the wireless networking system, and each AP uses the current channel
  • the scan information (including channel value and signal strength value) is returned to the network node that issued the command.
  • the current channel scanning information of the i-th AP is a set ⁇ RSSI i,1 ,RSSI i,2 ,...,RSSI i,j ⁇ , j is the i-th AP can
  • the number of neighbors scanned, the interference degree of the i-th AP is calculated according to the following form:
  • the noise i is sorted from large to small, and the AP with the largest noise value is considered to be the most interfered AP.
  • each AP set with power to be adjusted includes M+1 APs with power to be adjusted
  • the method further includes: S15: The transmit power of each AP whose power is to be adjusted in the N sub-areas is reduced by a preset range.
  • the transmit powers of all APs in the selected N sub-areas corresponding to their respective wireless high-rate modes are adjusted downward by a preset range, and the transmit powers of these APs in the wireless low-rate mode remain unchanged.
  • Pmax is the maximum transmit power of the AP, and Pmin is the minimum transmit power of the AP.
  • the value of f(d) is non-linearly variable and changes according to the maximum transmit power and the minimum transmit power of the AP, so that the adjusted power value is not at the edge initially, which is more convenient for the iterative power adjustment process.
  • the transmission power of the wireless low-rate mode of the AP is kept unchanged and only the transmission power of the wireless high-rate mode is reduced, which not only improves the performance of the client when negotiating to the wireless high-rate mode, but also maintains the negotiation in the wireless low-rate mode. Mode performance, and to ensure that the original wireless coverage remains unchanged.
  • the transmission power adjustment strategy is identified as follows: +1 indicates that the transmission power is increased, -1 indicates that the transmission power is decreased, and 0 indicates that the transmission power remains unchanged.
  • each AP has a different wireless rate mode, and the power value for each increase or decrease needs to be calculated corresponding to each wireless rate mode.
  • the adjusted power value is: P i ⁇ P 0,i ⁇ d i .
  • the first network performance parameter includes one or more of the negotiated rate value, time delay, packet loss rate, and packet error rate;
  • the second network performance parameter includes the negotiated rate value, time delay One or more of delay, packet loss rate, and packet error rate;
  • the third network performance parameter includes one or more of negotiated rate value, delay, packet loss rate, and error rate;
  • the third The four network performance parameters include one or more of the negotiated rate value, delay, packet loss rate, and packet error rate.
  • the network performance parameter may be any quantity that can be used to characterize the performance of the wireless network.
  • the network performance parameters can be characterized by the negotiated rate value, IP packet transmission delay, IP packet delay change, IP packet error rate, IP packet loss rate, IP packet error rate, etc., but the The network performance parameters are not limited thereto.
  • the acquisition according to the first network performance parameter, the second network performance parameter, the third network performance parameter and/or the fourth network performance parameter The next transmission power adjustment strategy of each AP whose power is to be adjusted specifically includes: S1101: Acquire the corresponding transmission power of each AP whose power is to be adjusted according to the third network performance parameter and the first network performance parameter The first network performance improvement value; S1102: Obtain the second network performance improvement value corresponding to each AP whose power is to be adjusted according to the fourth network performance parameter and the second network performance parameter; S1103: According to the first network performance parameter A network performance improvement value and the second network performance improvement value obtain the contribution value of each AP whose power is to be adjusted to the network performance improvement of the sub-area corresponding to the AP set whose power is to be adjusted; S1104: According to the contribution The value obtains the next transmit power adjustment policy of each AP whose power is to be adjusted.
  • this embodiment uses the negotiated rate value, delay, packet loss rate, and packet error rate to jointly characterize the network performance parameters.
  • the client under the i-th AP whose power is to be adjusted
  • the negotiation rate corresponding to the AP is ratei pre
  • the delay is delayi pre
  • the packet loss rate is dropi pre .
  • the negotiation rate of the AP is ratei cur
  • the delay is delayi cur
  • the packet loss rate is is dropi cur
  • the first network performance improvement value of the AP Ps f(ratei pre , ratei cur , delayi pre , delayi cur , dropi pre , dropi cur ).
  • the negotiation rate of all APs in the sub-area where the i-th AP whose power is to be adjusted is located is raten pre , the delay is delay pre , and the packet loss rate is dropn pre .
  • the next transmit power adjustment policy of the AP whose power is to be adjusted is set to +1 or -1 or 0.
  • the acquiring the next transmit power adjustment strategy of each AP whose power is to be adjusted according to the contribution value specifically includes: S11041: When the contribution value is greater than the first threshold, set the next The primary transmission power adjustment strategy is set to increase the transmission power, and obtain the increased transmission power value according to the difference between the contribution value and the first threshold; S11042: When the contribution value is less than the second threshold, set the next transmission power The adjustment strategy is set to reduce the transmission power, and obtain the reduced transmission power value according to the difference between the second threshold and the contribution value; wherein, the second threshold is smaller than the first threshold; S11043: When the contribution value When it is not greater than the first threshold and not less than the second threshold, the next transmission power adjustment strategy is set as the transmission power remains unchanged.
  • the contribution value can be graded, and the next transmit power adjustment strategy can be set according to its level, as represented by the following formula: T represents the next transmit power adjustment strategy, ⁇ 1 is the first threshold, and ⁇ 2 is the second threshold.
  • the method further includes: S112: Periodically optimize and adjust the transmit power of the AP.
  • the network performance of the client is recorded, and accordingly, the transmit power of the AP is optimally adjusted in real time.
  • the method before step S11, the method further includes:
  • APs that cannot perform power adjustment due to special reasons, such as APs that are preset by the system or selected by the user and do not require power adjustment. Not selecting, but only adjusting the remaining APs capable of power adjustment, can reduce the impact of power adjustment on APs with special requirements.
  • the processes in the above method for adjusting the transmission power of the wireless networking system in the present disclosure can also be completed by instructing related hardware through a computer program.
  • the computer program can be stored in a computer-readable storage medium.
  • the computer When the program is executed by the processor, the steps of the above method for adjusting the transmission power of the wireless networking system can be realized.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form.
  • the computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random Access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium, etc.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • electrical carrier signal telecommunication signal and software distribution medium, etc.
  • computer readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer readable media does not include Electrical carrier signals and telecommunication signals.
  • FIG. 4 is a schematic structural diagram of a preferred embodiment of a device for adjusting transmission power of a wireless networking system provided by the present disclosure, and the device can implement the method for adjusting transmission power of a wireless networking system described in any of the above embodiments. whole process.
  • the device includes: a first selection module 42, which is used to select N first APs with the highest degree of interference from all APs to form the first AP set; where N>0; the second selection Module 44, configured to take each first AP in the first AP set as the center, select M second APs adjacent to the first AP to form an AP set of power to be adjusted, and form N power to be adjusted AP sets.
  • each AP set with power to be adjusted includes M+1 APs with power to be adjusted; wherein, M>0;
  • the first calculation module 46 is used to obtain the connection information of each AP with power to be adjusted The first network performance parameter of the client and the second network performance parameter of each AP whose power is to be adjusted;
  • the second calculation module 48 is used to randomly select a transmission power adjustment strategy for each AP whose power is to be adjusted, and make statistical adjustments
  • the transmit power adjustment module 410 is configured to, according to the first network performance parameter, the second network performance parameter, the third network performance parameter and/or The network performance parameter acquires the next transmit power adjustment strategy of each AP whose power is to be adjusted.
  • the first selection module 42 specifically includes: a received signal strength acquisition unit 421, configured to acquire the signal strength value, the background noise, the channel utilization rate, the signal strength value of the signal received from the client between any two APs, and the received signal from the neighbor.
  • the signal strength value of the signal received by the access point The signal strength value of the signal received by the access point; the degree of interference sorting unit 422, which is used for according to the signal strength value of the signal received from the client, the background noise, the channel utilization rate, or the signal strength value received from the neighbor access point
  • the signal strength value of the signal determines the degree of interference of each AP, and sorts the APs in descending order of the degree of interference; the first AP selection unit 423 is used to select the first N APs from the sorted APs as the first AP.
  • the device further includes: a transmission power reduction module 45, configured to reduce the transmission power of each AP whose power is to be adjusted in the N sub-areas by a preset range.
  • a transmission power reduction module 45 configured to reduce the transmission power of each AP whose power is to be adjusted in the N sub-areas by a preset range.
  • the transmit power reduction module 45 is specifically configured to: adjust the transmit power of all APs in the selected N sub-areas corresponding to their respective wireless high-rate modes downward to a preset range, and maintain the wireless low rate of these APs. The transmit power of the mode remains unchanged.
  • Pmax is the maximum transmit power of the AP, and Pmin is the minimum transmit power of the AP.
  • the transmission power adjustment strategy is marked as follows: +1 indicates that the transmission power is increased, -1 indicates that the transmission power is decreased, and 0 indicates that the transmission power remains unchanged.
  • the first network performance parameter includes one or more of the negotiated rate value, delay, packet loss rate, and packet error rate;
  • the second network performance parameter includes the negotiated rate value, delay, and packet loss rate. one or more of rate and packet error rate;
  • the third network performance parameter includes one or more of negotiated rate value, delay, packet loss rate and packet error rate;
  • the fourth network performance parameter Including one or more of the negotiated rate value, delay, packet loss rate, and packet error rate.
  • the transmit power adjustment module 410 specifically includes:
  • the first network performance improvement value calculation unit 4101 is configured to obtain the first network performance improvement value of each AP whose power is to be adjusted according to the third network performance parameter and the first network performance parameter;
  • the second network performance The boost value calculation unit 4102 is configured to obtain the second network performance boost value of each AP whose power is to be adjusted according to the fourth network performance parameter and the second network performance parameter;
  • the contribution value calculation unit 4103 is used to According to the first network performance improvement value and the second network performance improvement value, the contribution value of each AP whose power is to be adjusted to the network performance improvement of the AP set whose power is to be adjusted is obtained;
  • the transmit power adjustment unit 4104 It is used to obtain the next transmit power adjustment strategy of each AP whose power is to be adjusted according to the contribution value.
  • the transmission power adjustment unit 4104 specifically includes: a first adjustment subunit 41041, configured to set the next transmission power adjustment strategy to increase the transmission power when the contribution value is greater than the first threshold, and The difference between the value and the first threshold value obtains an increased transmission power value; the second adjustment subunit 41042 is configured to set the next transmission power adjustment strategy as transmission power reduction when the contribution value is less than the second threshold value , and obtain a reduced transmit power value according to the difference between the second threshold and the contribution value; wherein, the second threshold is smaller than the first threshold; the third adjustment subunit 41043 is configured to when the contribution value is not When it is greater than the first threshold and not less than the second threshold, the next transmission power adjustment strategy is set as the transmission power remains unchanged.
  • a first adjustment subunit 41041 configured to set the next transmission power adjustment strategy to increase the transmission power when the contribution value is greater than the first threshold, and The difference between the value and the first threshold value obtains an increased transmission power value
  • the second adjustment subunit 41042 is configured to set the next transmission power adjustment
  • the device further includes: a power adjustment AP selection module 40, configured to select an AP to perform power adjustment.
  • a power adjustment AP selection module 40 configured to select an AP to perform power adjustment.
  • FIG. 5 is a schematic structural diagram of a preferred embodiment of a device for adjusting transmission power of a wireless networking system provided by the present disclosure, and the device can implement the method for adjusting transmission power of a wireless networking system described in any of the above embodiments. whole process.
  • the device includes a memory 51 and a processor 52; wherein, a computer program is stored in the memory 51, and the computer program is configured to be executed by the processor 52 and be executed by the processor 52 implements the method for adjusting the transmission power of the wireless networking system as described in any one of the foregoing embodiments during execution.
  • the computer program can be divided into one or more modules/units, and the one or more modules/units are stored in the memory 51 and executed by the processor 52 to complete this public.
  • the one or more modules/units may be a series of computer program instruction segments capable of accomplishing specific functions, and the instruction segments are used to describe the execution process of the computer program in the device.
  • the so-called processor 52 can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the memory 51 can be used to store the computer programs and/or modules, and the processor 52 realizes by running or executing the computer programs and/or modules stored in the memory 51 and calling the data stored in the memory various functions of the device.
  • the memory 51 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one function required application program (such as a sound playback function, an image playback function, etc.) etc.; the storage data area can be Store data (such as audio data, phone book, etc.) created according to the use of the mobile phone.
  • the memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disk, internal memory, plug-in hard disk, smart memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card , flash card (Flash Card), at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
  • non-volatile memory such as hard disk, internal memory, plug-in hard disk, smart memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card , flash card (Flash Card), at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
  • an embodiment of the present disclosure also provides a first access point (AP), where the first access point is one of components of a wireless network, and the first access point includes one or more processors, The one or more processors are configured to: select a plurality of second access points adjacent to the first access point in response to the interference degree of the first access point meeting a preset condition, determining the first access point and the plurality of second access points as access points constituting a sub-network of the wireless network; based on at least one client connected to the access point of the sub-network corresponding to The first network performance parameter and/or the second network performance parameter corresponding to at least one access point in the subnetwork, and adjust the transmit power of the first access point.
  • the one or more processors may be the above-mentioned processor 52 .
  • the preset condition is: among all the access points forming the wireless network, the first access point belongs to one of the top N most interfered access points, where N> 0.
  • the degree of interference of the first access point is determined by the signal strength value of the signal received by the first access point from the client, the background noise, the channel utilization rate, and the signal received from the neighbor access point. The signal strength value of the signal is determined.
  • the preset condition may also be: the first AP is an AP capable of power adjustment. For example, it is assumed that the APs that make up the wireless network include APs that only support protocols prior to WIFI 6, and APs that support WIFI 6 and versions after WIFI 6.
  • the wireless network at this time may be a wireless network with a hybrid network. Then at this time, if the first access point is an AP supporting a version after WIFI 6 and the degree of interference of the first access point is still strong, the first access point may be configured to perform subsequent power adjustment steps.
  • the present disclosure is not limited thereto.
  • the first access point receives a channel scan instruction from a certain network node (for example, a central manager or FAP) in the wireless network, and then the first access point performs a channel scan operation, and then the current channel
  • the scanning information (including channel value and signal strength value) is returned to the network node that issued the command.
  • the network node selects N APs with the highest degree of interference.
  • the network node of the wireless network may determine that the first access point is one of the N most interfered APs.
  • the wireless networking system has X APs, and the first access point is the i-th AP among them.
  • the current channel scanning information of the first access point is a set ⁇ RSSI i,1 ,RSSI i,2 ,...,RSSI i,j ⁇ , j is the number of neighbors that the first AP can scan, then it is calculated according to the following form Interference degree of the first AP:
  • the network node that issues the command sorts noise i from large to small, and the AP with the largest noise value is considered to be the most interfered AP.
  • the first access point may acquire the first network performance parameter or the second network performance parameter from the aforementioned network node, each AP in the subnet, and each client connected to the subnet. Or the first access point may also measure the second network performance parameter.
  • the present disclosure is not limited thereto.
  • the set of negotiated rates corresponding to all clients connected to the subnet is ratei pre
  • the set of delays is delayi pre
  • the set of packet loss rates is dropi pre
  • the first network performance parameter corresponding to at least one client of the access point of the network may be expressed as a function of [ratei pre , delayi pre , dropi pre ].
  • the first network performance parameter may be the maximum value, minimum value, median or average value of a set ratei pre of negotiated rates.
  • the first network performance parameter may also be the maximum value, minimum value, median or average value of the delay set delay pre .
  • the first network performance parameter may also be the maximum value, minimum value, median or average value of a set dropi pre of packet loss rates.
  • the first network performance parameter may also be the negotiation rate of the jth client connected to the subnetwork time delay and packet loss rate
  • the weighted average of , the jth client may be any client connected to the subnetwork, or the client with the worst channel quality, and so on.
  • the set of negotiated rates corresponding to all access points in the subnetwork is raten pre
  • the set of delays is delayn pre
  • the set of packet loss rates is dropn pre
  • at least one access point in the subnetwork The second network performance parameter corresponding to the entry point may be expressed as a function of [raten pre , delay pre , dropn pre ].
  • the second network performance parameter may be the maximum value, minimum value, median or average value of a set raten pre of negotiated rates.
  • the second network performance parameter may also be the maximum value, minimum value, median or average value of the set of delay pre .
  • the second network performance parameter may also be the maximum value, minimum value, median or average value of a set dropn pre of packet loss rates.
  • the second network performance parameter may also be the negotiation rate of the jth access point connected to the subnetwork time delay and packet loss rate
  • the jth AP may be the first access point, or the farthest access point from the first access point, or the closest access point to the first access point, and so on.
  • the adjusting the transmit power of the first access point includes: randomly adjusting the transmit power of the first access point, and the random adjustment includes: increasing the transmit power of the first access point transmit power of the first access point, reduce the transmit power of the first access point, and maintain the transmit power of the first access point.
  • the first access point further includes a transmitter, and the transmitter is further configured to: send a power adjustment instruction to the plurality of second access points, and the power adjustment instruction indicates the The plurality of second access points adjust transmit power. Specifically, if the transmit power of the first access point is reduced, the power adjustment instruction may instruct each of the plurality of second access points to reduce transmit power. The power adjustment instruction may instruct each second access point of the plurality of second access points to increase transmit power if the transmit power of the first access point is increased.
  • the present disclosure is not limited thereto.
  • the transmit power of all access points in the subnet including the first access point may be reduced.
  • ⁇ P is the preset amplitude
  • f(d) is an adjustment factor
  • Pmax is the maximum transmission power of the first AP
  • Pmin is the minimum transmission power of the first AP.
  • the value of f(d) is non-linearly variable, and it can be changed according to the maximum transmit power and the minimum transmit power of the first AP, so that the adjusted power value is not at the edge at the beginning, which is more convenient for power iterative adjustment process.
  • the transmit power of the first access point may be adjusted according to a rate mode of sending a certain data packet by the first access point.
  • the first access can send data packets in either the wireless high-rate mode or the wireless low-rate mode. Specifically, in response to the first access point sending the data packet in the wireless high rate mode, reduce the transmission power of the first access point for sending the data packet; in response to the first access point sending the data packet in the wireless low rate mode The data packet is sent in a rate mode, and the transmission power of the first access point for sending the data packet is maintained.
  • the present disclosure is not limited thereto.
  • the transmit power of all access points in the subnet including the first access point may be increased.
  • the present disclosure is not limited thereto.
  • the power adjustment scheme of the first access point is determined through an upper layer command from the above-mentioned network node (for example, the central manager or FAP).
  • the network node may send the following transmit power adjustment identifier to the first access point, where +1 indicates that the transmit power is increased, -1 indicates that the transmit power is decreased, and 0 indicates that the transmit power remains unchanged.
  • the power adjustment scheme of the first access point may be determined in combination with the above upper layer command and the wireless rate mode of the first access point. Both the possible increased power and the possible decreased power of the first access point need to be calculated corresponding to each wireless rate mode.
  • the first access point can calculate the degree to which the power needs to be adjusted, that is, the adjusted power value is: P i ⁇ P 0,i ⁇ d i .
  • f(P level ) is a nonlinear function.
  • the adjusting the transmit power of the first access point includes: after adjusting the transmit power of the first access point, obtaining at least one client connected to the access point of the subnetwork The third network performance parameter corresponding to the terminal The fourth network performance parameter corresponding to at least one access point in the subnetwork The third network performance parameter corresponding to at least one client connected to the access point of the subnetwork and/or or a fourth network performance parameter corresponding to at least one access point in the sub-network; based on the third network performance parameter and/or the fourth network performance parameter, adjust the transmission of the first access point again power.
  • the first access point may acquire the third network performance parameter or the fourth network performance parameter from the aforementioned network node, each AP in the subnet, and each client connected to the subnet. Or the first access point may also measure a fourth network performance parameter.
  • the present disclosure is not limited thereto.
  • the set of negotiated rates corresponding to all clients connected to the subnet is ratei cur
  • the set of delay is delayi cur
  • the set of packet loss rates is dropi cur
  • the set of connected to the subnet The third network performance parameter corresponding to at least one client of the access point of the network may be expressed as a function of [ratei cur , delayi cur , dropi cur ].
  • the calculation method of the third network performance parameter is the same as or similar to the calculation method of the first network performance parameter, and will not be repeated here.
  • the set of negotiated rates corresponding to all access points in the subnetwork is raten cur
  • the set of delays is delay cur
  • the set of packet loss rates is dropn cur
  • at least one access point in the subnetwork The fourth network performance parameter corresponding to the entry point may be expressed as [raten cur , delay cur , dropn cur ].
  • the calculation method of the fourth network performance parameter is the same as or similar to the calculation method of the second network performance parameter, and will not be repeated here.
  • the readjusting the transmit power of the first access point based on the third network performance parameter and/or the fourth network performance parameter includes: based on the first network performance parameter and For a third network performance parameter, determine a first network performance comparison value; determine a second network performance comparison value based on the second network performance parameter and a fourth network performance parameter; and determine a second network performance comparison value based on the first network performance comparison value and the A second network performance comparison value, determining a contribution value of the transmission power adjustment of the first access point to the network performance improvement of the sub-network, and adjusting the transmission power of the first access point again based on the contribution value .
  • f, g and h are all linear or nonlinear functions, and the present disclosure does not limit the specific forms of f, g and h.
  • the adjusting the transmit power of the first access point based on the contribution value includes: in response to the contribution value being greater than a first threshold, based on the contribution value and the first threshold, increase the transmit power of the first access point; in response to the contribution value being less than a second threshold, reduce the first access point based on the difference between the contribution value and the second threshold , wherein the second threshold is less than the first threshold; in response to the contribution being not greater than the first threshold and not less than the second threshold, maintaining the transmission of the first access point power.
  • the contribution values may be graded, and a scheme for the first access point to readjust the transmit power may be set according to the grades.
  • ⁇ 1 is the first threshold
  • ⁇ 2 is the second threshold.
  • the present disclosure is not limited thereto.
  • an embodiment of the present disclosure provides a second access point (AP), the second access point is one of the components of the wireless network, the second access point includes one or more processors, the The one or more processors are configured to: in response to the interference level of the first access point adjacent to the second access point meeting a preset condition, determine that the second access point is composed of One of the access points in the sub-network centered on the first access point; based on the first network performance parameter corresponding to at least one client connected to the access point of the sub-network and/or in the sub-network The second network performance parameter corresponding to at least one access point of the at least one access point, and adjusting the transmit power of the second access point.
  • AP second access point
  • the second access point AP may receive an instruction from the first access point or the above-mentioned network node (central manager or FAB), which indicates that it is a member of a subnetwork centered on the first access point. one of the access points.
  • central manager or FAB central manager
  • the adjusting the transmission power of the second access point includes: after adjusting the transmission power of the second access point, obtaining at least one client connected to the access point of the subnetwork The third network performance parameter corresponding to the terminal The fourth network performance parameter corresponding to at least one access point in the subnetwork The third network performance parameter corresponding to at least one client connected to the access point of the subnetwork and/or or a fourth network performance parameter corresponding to at least one access point in the sub-network; based on the third network performance parameter and/or the fourth network performance parameter, adjust the transmission of the second access point again power.
  • the readjusting the transmit power of the first access point based on the third network performance parameter and/or the fourth network performance parameter includes: based on the first network performance parameter and For a third network performance parameter, determine a first network performance comparison value; determine a second network performance comparison value based on the second network performance parameter and a fourth network performance parameter; and determine a second network performance comparison value based on the first network performance comparison value and the The second network performance comparison value is the contribution value of the transmission power adjustment of the first access point to the network performance improvement of the sub-network, and the transmission power of the second access point is adjusted again based on the contribution value.
  • an embodiment of the present disclosure provides a method performed by a wireless network, including: selecting N first APs with the highest degree of interference from all APs forming the wireless network to form a first AP set; where N> 0: Take each first AP in the first AP set as the center, select M second APs adjacent to the first AP, and form N subnetworks, each subnetwork includes a first AP and M second APs Two APs; wherein, M>0; for one of the N subnetworks, obtain the first network performance parameter corresponding to the client connected to the AP in the subnetwork and/or the corresponding AP in the subnetwork The second network performance parameter; randomly select the transmission power adjustment strategy corresponding to the AP in the subnetwork, and adjust the transmission power corresponding to the AP in the subnetwork based on the transmission power adjustment strategy, wherein the The transmit power adjustment strategy includes increasing the transmit power, reducing the transmit power, and keeping the transmit power unchanged; counting the third network performance parameters of the clients connected to the
  • the acquiring the APs in the sub-network according to the first network performance parameter, the second network performance parameter, the third network performance parameter and/or the fourth network performance parameter includes: obtaining the first network performance improvement value of the AP in each sub-network according to the third network performance parameter and the first network performance parameter; according to the fourth network performance parameter and The second network performance parameter obtains a second network performance improvement value of the sub-network; and obtains a pair of APs in the sub-network for the sub-network according to the first network performance improvement value and the second network performance improvement value.
  • the contribution value of the network performance improvement of the network; the next transmission power adjustment strategy of the AP in the sub-network is obtained according to the contribution value.
  • the acquiring the next transmit power adjustment strategy of the AP in the subnet according to the contribution value includes: when the contribution value is greater than a first threshold, setting the next transmit power adjustment strategy to It is defined as an increase in transmission power, and an increased transmission power value is obtained according to the difference between the contribution value and the first threshold value; when the contribution value is less than the second threshold value, the next transmission power adjustment strategy is set as transmission power reduction , and obtain a reduced transmission power value according to the difference between the second threshold and the contribution value; wherein, the second threshold is smaller than the first threshold; when the contribution value is not greater than the first threshold and not less than When the second threshold is reached, the next transmission power adjustment strategy is set as the transmission power remains unchanged.
  • the selecting N first APs with the highest degree of interference from all APs to form the first AP set includes: obtaining signal strength values of signals received from the client between any two APs, Noise floor, channel utilization, and signal strength values of signals received from neighbor access points; The signal strength value of the signal determines the degree of interference of each AP, and sorts the APs in descending order of the degree of interference; select the first N APs from the sorted APs as the first AP.
  • the method further includes: reducing the transmit power of the AP in each of the N subnetworks by a preset range.
  • an embodiment of the present disclosure provides a first access point (AP), where the first access point and multiple second access points together form a subnetwork of the wireless network, and the first access point includes One or more processors configured to: at least one of the sub-networks based on a first network performance parameter corresponding to at least one client connected to an access point of the sub-network The second network performance parameter corresponding to the access point The first network performance parameter corresponding to at least one client connected to the access point of the subnetwork and/or the second network performance parameter corresponding to at least one access point in the subnetwork A network performance parameter, randomly adjusting the transmission power of the first access point; after adjusting the transmission power of the first access point, obtaining at least one client corresponding to the access point connected to the subnetwork The third network performance parameter corresponding to at least one access point in the subnetwork The fourth network performance parameter corresponding to at least one client connected to the access point of the subnetwork and/or the third network performance parameter A fourth network performance parameter corresponding to at least one access point in the sub
  • the first access point may receive a channel scanning instruction from a certain network node (for example, the central manager or FAP) in the wireless network, then the first access point performs a channel scanning operation, and then the current channel scanning Information, including channel and signal strength values, is returned to the commanding network node.
  • the scanning information may include the aforementioned first network performance parameter corresponding to at least one client connected to the access point of the subnet and/or the second network performance parameter corresponding to at least one access point in the subnet .
  • the network node may send a command to randomly adjust the transmit power of the first access point to the first access point.
  • the network node may send the following command including the power adjustment identifier to the first access point, where +1 indicates that the transmission power is increased, -1 indicates that the transmission power is decreased, and 0 indicates that the transmission power remains unchanged.
  • the first access point After the first access point adjusts its transmission power according to the above instruction, it will perform channel scanning operation again, and then return the current channel scanning information (including channel value and signal strength value) to the network node that issued the command.
  • the scan information may include the aforementioned third network performance parameter corresponding to at least one client connected to the access point of the subnet and/or the fourth network performance parameter corresponding to at least one access point in the subnet. Network performance parameters.
  • the network node may send a command to the first access point to adjust the transmission power of the first access point again.
  • the readjusting the transmit power of the first access point based on the third network performance parameter and/or the fourth network performance parameter includes: based on the first network performance parameter and For a third network performance parameter, determine a first network performance comparison value; determine a second network performance comparison value based on the second network performance parameter and a fourth network performance parameter; and determine a second network performance comparison value based on the first network performance comparison value and the A second network performance comparison value, determining a contribution value of the transmission power adjustment of the first access point to the network performance improvement of the sub-network, and adjusting the transmission power of the first access point again based on the contribution value .
  • the embodiment of the present disclosure provides a transmission power adjustment method of a wireless networking system.
  • a transmission power adjustment method of a wireless networking system By randomly adjusting the transmission power of the AP whose signal is interfered with for the first time, it is dynamically calculated according to the information of the client connected to the AP in the wireless networking system.
  • the influence degree of each AP on the network performance of its area and then adjust the transmission power according to the degree of influence, so that each AP in the wireless networking system can work in the global optimal state, thereby reducing the wireless network system. signal interference and improve the network performance of the wireless networking system.
  • the transmission power adjustment device of the above wireless networking system includes, but is not limited to, a processor and a memory.
  • a processor and a memory are examples of the transmission power adjustment device of the above wireless networking system. It does not constitute a limitation on the transmission power adjustment device of the wireless networking system, and may include more components than shown in the figure, or combine certain components, or different components.

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Abstract

本公开涉及无线通信技术领域,公开了一种第一接入点、第二接入点、由无线网络执行的方法、及存储介质。所述第一接入点为无线网络的组成设备之一,所述第一接入点包括一个或多个处理器,所述一个或多个处理器被配置为:响应于所述第一接入点的受干扰程度满足预设条件,选择与所述第一接入点相邻的多个第二接入点,将所述第一接入点和所述多个第二接入点确定为组成所述无线网络的子网络的接入点;基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,调整所述第一接入点的发射功率。

Description

第一接入点、第二接入点、由无线网络执行的方法、及存储介质
本申请要求于2021年9月23日递交的第202111112746.8号中国专利申请的优先权,在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开涉及无线通信技术领域,特别是涉及一种第一接入点、第二接入点、由无线网络执行的方法、及存储介质。
背景技术
近年来,随着移动用户数目以及实时多媒体数据业务量的不断增加,用户对无线局域网络(WLAN)在带宽、性能、覆盖范围等方面的需求日益提高,为了满足用户的需求,在用户密度大的热点区域,往往需要高密度地部署AP,即构建无线组网系统。但是,在用户密度大的热点区域部署高密度的AP,由于接入密度高,会导致多个AP同频信道分配造成干扰的情况加重,甚至出现用户通信的中断。
在Wifi 6中,已经出现了一些AP自动调节发射功率的方案,然而这些方案仍难以解决密集AP情形下的干扰强度大的问题。因此需要对当前的WLAN进行进一步改进。
发明内容
本公开实施例所要解决的技术问题是:无线组网系统发射功率调整方法、装置、设备、第一接入点、第二接入点、由无线网络执行的方法、及存储介质,降低无线组网系统的信号干扰并提高无线组网系统的网络性能。
为了解决上述技术问题,第一方面,本公开实施例提供一种无线组网系统发射功率调整方法,所述方法包括:
从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合;其中,N>0;
以所述第一AP集合中的每一个第一AP为中心,选取所述第一AP临近的M个第二AP组成待调节功率的AP集合,形成N个待调节功率的AP集合,每 个待调节功率的AP集合中包括M+1个待调节功率的AP;其中,M>0;可选地,M=2。
获取每一个所述待调节功率的AP下连接的客户端的第一网络性能参数以及每一个待调节功率的AP的第二网络性能参数;
对每一个所述待调节功率的AP随机选择发射功率调整策略,并统计调整后的每一个所述待调节功率的AP下连接的客户端的第三网络性能参数以及调整后的每一个待调节功率的AP的第四网络性能参数;其中,所述发射功率调整策略包括发射功率提高、发射功率降低以及发射功率不变;
根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取每一个所述待调节功率的AP的下一次发射功率调整策略。
作为一个可选方案,所述根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取每一个所述待调节功率的AP的下一次发射功率调整策略,具体包括:
根据所述第三网络性能参数以及所述第一网络性能参数获取每一个所述待调节功率的AP对应的第一网络性能提升值;
根据所述第四网络性能参数以及所述第二网络性能参数获取每一个所述待调节功率的AP对应的第二网络性能提升值;
根据所述第一网络性能提升值以及所述第二网络性能提升值获取每一个所述待调节功率的AP对所在待调整功率的AP集合对应的子区域的网络性能提升的贡献值;
根据所述贡献值获取每一个所述待调节功率的AP的下一次发射功率调整策略。
作为一个可选方案,所述根据所述贡献值获取每一个所述待调节功率的AP的下一次发射功率调整策略,具体包括:
当所述贡献值大于第一阈值时,将下一次发射功率调整策略设定为发射功率提高,并根据贡献值与所述第一阈值的差值获取提高的发射功率值;
当所述贡献值小于第二阈值时,将下一次发射功率调整策略设定为发射功率降低,并根据所述第二阈值与贡献值的差值获取降低的发射功率值;其中,所述第二阈值小于所述第一阈值;
当所述贡献值不大于所述第一阈值且不小于所述第二阈值时,将下一次 发射功率调整策略设定为发射功率不变。
作为一个可选方案,所述第一网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;
所述第二网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;
所述第三网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;
所述第四网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种。
作为一个可选方案,所述从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合,具体包括:
获取任意两个AP之间从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值;
根据所述从客户端接收的信号的信号强度值、本底噪声、信道利用率、或从邻居接入点接收的信号的信号强度值确定每一个AP的受干扰程度,并按照受干扰程度从大到小的顺序对AP进行排序;
从排序后的AP中选取出前N个AP作为所述第一AP。
作为一个可选方案,在所述形成N个待调节功率的AP集合,每个待调节功率的AP集合中包括M+1个待调节功率的AP之后,所述方法还包括:
将N个所述子区域中每一个所述待调节功率的AP的发射功率降低预设幅度。
作为一个可选方案,所述预设幅度通过如下公式确定:
ΔP=f(d)*(Pmax-Pmin);其中,ΔP为所述预设幅度,f(d)为调整因子,0≤f(d)≤1,Pmax为AP的最大发射功率,Pmin为AP的最小发射功率。
为了解决上述技术问题,第二方面,本公开实施例提供一种无线组网系统发射功率调整装置,所述装置包括:
第一选取模块,用于从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合;其中,N>0;
第二选取模块,用于以所述第一AP集合中的每一个第一AP为中心,选取所述第一AP临近的M个第二AP组成待调节功率的AP集合,形成N个待调节功率的AP集合,每个待调节功率的AP集合中包括M+1个待调节功率的AP; 其中,M>0;
第一计算模块,用于获取每一个所述待调节功率的AP下连接的客户端的第一网络性能参数以及每一个待调节功率的AP的第二网络性能参数;
第二计算模块,用于对每一个所述待调节功率的AP随机选择发射功率调整策略,并统计调整后的每一个所述待调节功率的AP下连接的客户端的第三网络性能参数以及调整后的每一个待调节功率的AP的第四网络性能参数;其中,所述发射功率调整策略包括发射功率提高、发射功率降低以及发射功率不变;
发射功率调整模块,用于根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取每一个所述待调节功率的AP的下一次发射功率调整策略。
为了解决上述技术问题,第三方面,本公开实施例提供一种无线组网系统发射功率调整设备,所述设备包括处理器以及存储器;其中,所述存储器中存储有计算机程序,所述计算机程序被配置为由所述处理器执行,所述处理器执行所述计算机程序时实现如第一方面任一项所述的无线组网系统发射功率调整方法。
为了解决上述技术问题,第四方面,本公开实施例提供一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序,所述计算机程序被执行时实现如第一方面任一项所述的无线组网系统发射功率调整方法。
为了解决上述技术问题,第五方面,本公开实施例提供一种第一接入点(AP),所述第一接入点为无线网络的组成设备之一,所述第一接入点包括一个或多个处理器,所述一个或多个处理器被配置为:响应于所述第一接入点的受干扰程度满足预设条件,选择与所述第一接入点相邻的多个第二接入点,将所述第一接入点和所述多个第二接入点确定为组成所述无线网络的子网络的接入点;基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,调整所述第一接入点的发射功率。
作为一个可选方案,所述预设条件为:在组成无线网络中的所有接入点中,所述第一接入点属于前N个受干扰程度最大的接入点之一,其中N>0。
作为一个可选方案,所述第一接入点的受干扰程度由所述第一接入点从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收 的信号的信号强度值决定。
作为一个可选方案,所述第一接入点还包括发射器,所述发射器还被配置为:向所述多个第二接入点发送功率调节指令,所述功率调节指令指示所述多个第二接入点调整发射功率。
作为一个可选方案,所述调整所述第一接入点的发射功率包括:在调整所述第一接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率。
作为一个可选方案,所述调整所述第一接入点的发射功率包括:响应于所述第一接入点以无线高速率模式发送数据包,降低所述第一接入点发送所述数据包的发射功率;响应于所述第一接入点以无线低速率模式发送数据包,维持所述第一接入点发送所述数据包的发射功率。
作为一个可选方案,所述调整所述第一接入点的发射功率包括:对所述第一接入点的发射功率进行随机调整,所述随机调整包括:提高所述第一接入点的发射功率、降低所述第一接入点的发射功率、维持所述第一接入点的发射功率。
作为一个可选方案,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比较值;和/或基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及基于所述第一网络性能比较值和/或所述第二网络性能比较值,确定所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,基于所述贡献值,再次调整所述第一接入点的发射功率。
作为一个可选方案,所述基于所述贡献值,再次调整所述第一接入点的发射功率包括:响应于所述贡献值大于第一阈值,基于所述贡献值与所述第一阈值的差值,提高所述第一接入点的发射功率;响应于所述贡献值小于第二阈值,基于所述贡献值与所述第二阈值的差值,降低所述第一接入点的发射功率,其中,所述第二阈值小于所述第一阈值;响应于所述贡献值不大于所述第一阈值且不小于所述第二阈值,维持所述第一接入点的发射功率。
为了解决上述技术问题,第六方面,本公开实施例提供一种第一接入点 (AP),所述第一接入点与多个第二接入点共同组成无线网络的一个子网络,所述第一接入点包括一个或多个处理器,所述一个或多个处理器被配置为:基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,对所述第一接入点的发射功率进行随机调整;在调整所述第一接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率。
作为一个可选方案,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括:基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比较值;和/或基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及基于所述第一网络性能比较值和/或所述第二网络性能比较值,确定所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,基于所述贡献值,再次调整所述第一接入点的发射功率。
作为一个可选方案,所述基于所述贡献值,再次调整所述第一接入点的发射功率包括:响应于所述贡献值大于第一阈值,基于所述贡献值与所述第一阈值的差值,提高所述第一接入点的发射功率;响应于所述贡献值小于第二阈值,基于所述贡献值与所述第二阈值的差值,降低所述第一接入点的发射功率,其中,所述第二阈值小于所述第一阈值;响应于所述贡献值不大于所述第一阈值且不小于所述第二阈值,维持所述第一接入点的发射功率。
为了解决上述技术问题,第七方面,本公开实施例提供一种由无线网络执行的方法,包括:从组成所述无线网络的所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合;其中,N>0;以所述第一AP集合中的每一个第一AP为中心,选取所述第一AP临近的M个第二AP,形成N个子网络,每个子网络包括一个第一AP和M个第二AP;其中,M>0;针对N个子网络中的一个子网络,获取与所述子网络中的AP连接的客户端对应的第一网络性能参数和/或所述子网络中的AP对应的第二网络性能参数;随机选择所述子网络中的AP对应的发射功率调整策略,并基于所述发射功率调整策略,对所述子网络中的AP对应的发射功率进行调整,其中,所述发射功率调整策略包括发 射功率提高、发射功率降低以及发射功率不变;统计与调整后的子网络中的AP连接的客户端的第三网络性能参数以及调整后的子网络中的AP对应的第四网络性能参数;根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数,获取所述子网络中的AP的下一次发射功率调整策略。
作为一个可选方案,所述根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取所述子网络中的AP的下一次发射功率调整策略,包括:根据所述第三网络性能参数以及所述第一网络性能参数获取每个子网络中的AP的第一网络性能提升值;和/或根据所述第四网络性能参数以及所述第二网络性能参数获取所述子网络的第二网络性能提升值;根据所述第一网络性能提升值和/或所述第二网络性能提升值获取所述子网络中的AP对所述子网络的网络性能提升的贡献值;根据所述贡献值获取所述子网络中的AP的下一次发射功率调整策略。
作为一个可选方案,所述根据所述贡献值获取所述子网络中的AP的下一次发射功率调整策略,包括:当所述贡献值大于第一阈值时,将下一次发射功率调整策略设定为发射功率提高,并根据贡献值与所述第一阈值的差值获取提高的发射功率值;当所述贡献值小于第二阈值时,将下一次发射功率调整策略设定为发射功率降低,并根据所述第二阈值与贡献值的差值获取降低的发射功率值;其中,所述第二阈值小于所述第一阈值;当所述贡献值不大于所述第一阈值且不小于所述第二阈值时,将下一次发射功率调整策略设定为发射功率不变。
作为一个可选方案,所述从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合,包括:获取任意两个AP之间从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值;根据所述从客户端接收的信号的信号强度值、本底噪声、信道利用率、或从邻居接入点接收的信号的信号强度值确定每一个AP的受干扰程度,并按照受干扰程度从大到小的顺序对AP进行排序;从排序后的AP中选取出前N个AP作为所述第一AP。
作为一个可选方案,在所述形成N个子网络之后,所述方法还包括:将N个所述子网络中每个子网络中的AP的发射功率降低预设幅度。
作为一个可选方案,所述预设幅度通过如下公式确定: ΔP=f(d)*(Pmax-Pmin);其中,ΔP为所述预设幅度,f(d)为调整因子,0≤f(d)≤1,Pmax为AP的最大发射功率,Pmin为AP的最小发射功率。
为了解决上述技术问题,第八方面,本公开实施例提供一种第二接入点(AP),所述第二接入点为无线网络的组成设备之一,所述第二接入点包括一个或多个处理器,所述一个或多个处理器被配置为:响应于与所述第二接入点相邻的第一接入点的受干扰程度满足预设条件,确定所述第二接入点为组成以所述第一接入点为中心的子网络中的接入点;基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,调整所述第二接入点的发射功率。
作为一个可选方案,所述调整所述第二接入点的发射功率包括:在调整所述第二接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第二接入点的发射功率。
作为一个可选方案,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括:基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比较值;基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及基于所述第一网络性能比较值和所述第二网络性能比较值,所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,基于所述贡献值,再次调整所述第二接入点的发射功率。
附图说明
为了更清楚地说明本公开实施例的技术特征,下面将对本公开实施例中所需要使用的附图做简单地介绍,显而易见地,下面所描述的附图仅仅是本公开的一些实施例,对于本领域技术人员来说,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是根据本公开实施例的一种无线组网系统发射功率调整方法的一个优选实施例的流程示意图;
图2是图1中步骤S12的实施例的示例流程示意图;
图3是图1中步骤S110的优选实施例的示例流程示意图;
图4是根据本公开实施例的一种无线组网系统发射功率调整装置的实施例的结构示意图;
图5是根据本公开实施例的一种无线组网系统发射功率调整设备的实施例的结构示意图。
具体实施方式
为了对本公开的技术特征、目的、效果有更加清楚的理解,下面结合附图和实施例,对本公开的具体实施方式作进一步详细描述。以下实施例仅用于说明本公开,但是不用来限制本公开的保护范围。基于本公开的实施例,本领域技术人员在没有付出创造性劳动的前提下所获得的其他实施例,都应属于本公开的保护范围。
在本公开的描述中,应当理解的是,本文中的编号本身,例如“第一”、“第二”等,仅用于区分所描述的对象,不具有顺序或者技术含义,不能理解为规定或者暗示所描述的对象的重要性。
降低无线组网系统中的信号干扰的主要方式为信道部署及发射功率调整。
其中,信道部署的具体做法为:为无线AP分配合适的信道,使得整体干扰最小。但是,由于WLAN信道本身的局限性,在2.4G频段,最多只能存在三个互不干扰的20MHz带宽的信道,当AP数量较多且距离较近时,信号干扰的强度仍然很大。
发射功率调整的具体做法为:在无线组网系统中,选取摆放较为密集的AP进行发射功率调整,调整的依据是当前AP接收到邻近AP的信号强度,经计算后降低该AP上所有无线速率模式和所有无线协议帧的发射功率。但是,仅根据AP之间的摆放关系决定AP调整功率的方向,当某些AP摆放较密集但连接到这些AP的客户端数量非常少时,降低这些AP的功率对网络性能的提升几乎没有,甚至有降低网络性能的风险,相反,当某些AP摆放不属于最密集的AP摆放群组,但这些AP下连接了很多客户端,AP之间的发包干扰相对较大,这些AP应该适当降低发射功率,而按照现有的调整方式,这些AP的发射功率基本维持不变,对网络性能没有提升效果。
本公开实施例提供的无线组网系统发射功率调整方法、装置、设备、第一接入点、第二接入点、由无线网络执行的方法、及存储介质,降低无线组网系统的信号干扰并提高无线组网系统的网络性能,其有益效果在于:通过第一次 的随机调整信号受干扰的AP的发射功率,根据连接在无线组网系统内部AP上的客户端的信息动态计算出每一个AP对其所在区域的网络性能的影响程度,后续再根据影响程度进行发射功率的调整,能够使无线组网系统内的每一个AP工作于全局最优状态,进而降低了无线组网系统的信号干扰并提高了无线组网系统的网络性能。
图1所示为本公开提供的一种无线组网系统发射功率调整方法的一个优选实施例的流程示意图。
如图1所示,所述方法包括如下步骤:
S12:从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合;其中,N>0;
S14:以所述第一AP集合中的每一个第一AP为中心,选取所述第一AP临近的M个第二AP组成待调节功率的AP集合,形成N个待调节功率的AP集合,每个待调节功率的AP集合中包括M+1个待调节功率的AP;其中,M>0;
S16:获取每一个所述待调节功率的AP下连接的客户端的第一网络性能参数以及每一个待调节功率的AP的第二网络性能参数;
S18:对每一个所述待调节功率的AP随机选择发射功率调整策略,并统计调整后的每一个所述待调节功率的AP下连接的客户端的第三网络性能参数以及调整后的每一个待调节功率的AP的第四网络性能参数;其中,所述发射功率调整策略包括发射功率提高、发射功率降低以及发射功率不变;
S110:根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取每一个所述待调节功率的AP的下一次发射功率调整策略。
具体而言,首先,由无线组网系统中的任一网络节点(可以是中央管理器、FAP,但不限于此)向无线组网系统内的每一个AP发送信道扫描指令,每个AP将当前信道的扫描信息(包括信道值和信号强度值)返回至发出命令的网络节点,该网络节点接收到扫描信息之后,从中选取出N个受干扰程度最大的第一AP。其次,以选取出的N个第一AP为中心,分别选取出与其最邻近的M个第二AP组成待调节功率的AP集合(即每一个待调节功率的AP的集合中具有1+M个AP,此时第一AP和第二AP在后续均可被称为待调节功率的AP),相应的以这种形式组成N个子区域,每个子区域对应一个待调节功率的AP集合。然后,获取选定的N个子区域内的每一个待调节功率的AP按照预设的时 间周期采集连接在这些AP上的客户端的第一网络性能参数,以及每一个子区域的所有AP的第二网络参数,作为后续对照所用参数。接着,再对每一个待调节功率的AP随机选择发射功率提高、发射功率降低以及发射功率不变的功率调整策略,并统计调整后的每一个待调节功率的AP下连接的客户端的第三网络性能参数,以及调整后的每一个子区域的所有AP的第四网络性能参数。最后,根据第一网络性能参数、第二网络性能参数、第三网络性能参数以及第四网络性能参数计算出每一个AP对所在区域的网络性能提升的贡献值,并根据贡献值求出每一个AP的下一次发射功率调整策略。
本公开实施例提供的一种无线组网系统发射功率调整方法,通过第一次的随机调整信号受干扰的AP的发射功率,根据连接在无线组网系统内部AP上的客户端的信息动态计算出每一个AP对其所在区域的网络性能的影响程度,后续再根据影响程度进行发射功率的调整,能够使无线组网系统内的每一个AP工作于全局最优状态,进而降低了无线组网系统的信号干扰并提高了无线组网系统的网络性能。
在一个优选实施例中,如图2所示,所述从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合,具体包括:
S121:获取任意两个AP之间从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值;S122:根据所述从客户端接收的信号的信号强度值、本底噪声、信道利用率、或从邻居接入点接收的信号的信号强度值确定每一个AP的受干扰程度,并按照受干扰程度从大到小的顺序对AP进行排序;S123:从排序后的AP中选取出前N个AP作为所述第一AP。
具体而言,由无线组网系统中的任一网络节点(可以是中央管理器、FAP,但不限于此)向无线组网系统内的每一个AP发送信道扫描指令,每个AP将当前信道的扫描信息(包括信道值和信号强度值)返回至发出命令的网络节点。作为一个举例,无线组网系统有X个AP,第i个AP的当前信道扫描信息为集合{RSSI i,1,RSSI i,2,…,RSSI i,j},j为第i个AP可以扫描到的邻居数量,则根据以下形式计算出第i个AP的受干扰程度:
Figure PCTCN2022120932-appb-000001
并对noise i从大到小进行排序,noise值最大的AP认为是受干扰最大的AP。
在一个优选实施例中,在所述形成N个待调节功率的AP集合,每个待调节功率的AP集合中包括M+1个待调节功率的AP之后,所述方法还包括:S15:将N个所述子区域中每一个所述待调节功率的AP的发射功率降低预设幅度。
具体的,对选取的N个子区域内的所有AP对应各自的无线高速率模式的发射功率均向下调整预设幅度,并保持这些AP的无线低速率模式的发射功率维持不变。
其中,所述预设幅度通过如下公式确定:ΔP=f(d)*(Pmax-Pmin);其中,ΔP为所述预设幅度,f(d)为调整因子,0≤f(d)≤1,Pmax为AP的最大发射功率,Pmin为AP的最小发射功率。
优选的,f(d)的值是非线性可变的,根据AP的最大发射功率以及最小发射功率而变化,以便调整后的功率值一开始不处于边缘,更便于功率迭代调整过程。
本实施例保持AP的无线低速率模式的发射功率不变而仅降低无线高速率模式的发射功率,不仅能够提高客户端在协商到无线高速率模式下的性能,而且维持了协商在无线低速率模式的性能,且保证原有的无线覆盖范围不变。
在一个优选实施例中,发射功率调整策略标识如下:+1表示发射功率提高,-1表示发射功率降低,0表示发射功率不变。
具体而言,每个AP会有不同的无线速率模式,每次提高或者下降的功率值需要对应各个无线速率模式进行计算。以无线速率模式支持MCS7为例,增加或者降低功率值,对应得到的功率值是非线性的,可由如下公式表征:d i=f(P level)。
根据不同的功率等级P level,计算出功率需要调整的程度,即调整后的功率值为:P i←P 0,i-d i
在一个优选实施例中,所述第一网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;所述第二网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;所述第三网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;所述第四网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种。
可选地,网络性能参数可以是能够用于表征无线网络的性能的任意量。具体而言,网络性能参数可以使用协商速率值、IP包传输时延、IP包时延变化、IP包误差率、IP包丢包率、IP包错包率等进行表征,但本公开中的网络性能 参数不限于此。
在一个优选实施例中,如图3所示,所述根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取每一个所述待调节功率的AP的下一次发射功率调整策略,具体包括:S1101:根据所述第三网络性能参数以及所述第一网络性能参数获取每一个所述待调节功率的AP对应的第一网络性能提升值;S1102:根据所述第四网络性能参数以及所述第二网络性能参数获取每一个所述待调节功率的AP对应的第二网络性能提升值;S1103:根据所述第一网络性能提升值以及所述第二网络性能提升值获取每一个所述待调节功率的AP对所在待调整功率的AP集合对应的子区域的网络性能提升的贡献值;S1104:根据所述贡献值获取每一个所述待调节功率的AP的下一次发射功率调整策略。
作为一个举例,本实施例采用协商速率值、时延、丢包率以及错包率共同表征网络性能参数,上一个时间周期内(发射功率调整前)第i个待调节功率的AP下的客户端对应的协商速率为ratei pre,时延为delayi pre,丢包率为dropi pre,当前时间周期内(发射功率调整后)该AP的协商速率为ratei cur,时延为delayi cur,丢包率为dropi cur,则,该AP的第一网络性能提升值Ps=f(ratei pre,ratei cur,delayi pre,delayi cur,dropi pre,dropi cur)。上一个时间周期内第i个待调节功率的AP所在子区域内所有AP的协商速率为raten pre,延时为delayn pre,丢包率为dropn pre,当前时间周期内该子区域内所有AP对应的协商速率为raten cur,延时为delayn cur,丢包率为dropn cur,则,该子区域的第二网络性能提升百分值Pa=g(raten pre,raten cur,delayn pre,delayn cur,dropn pre,dropn cur),其中,raten pre,delayn pre,dropn pre,raten cur,delayn cur,dropn cur均为集合。再根据Ps和Pa可进一步求出该AP对所在待调整功率的AP集合的网络性能提升的贡献值Q=h(Ps,Pa)。然后再根据Q的值将该待调节功率的AP的下一次发射功率调整策略设定为+1或者-1或者0。
在一个优选实施例中,所述根据所述贡献值获取每一个所述待调节功率的AP的下一次发射功率调整策略,具体包括:S11041:当所述贡献值大于第一阈值时,将下一次发射功率调整策略设定为发射功率提高,并根据贡献值与所述第一阈值的差值获取提高的发射功率值;S11042:当所述贡献值小于第二阈值时,将下一次发射功率调整策略设定为发射功率降低,并根据所述第二阈 值与贡献值的差值获取降低的发射功率值;其中,所述第二阈值小于所述第一阈值;S11043:当所述贡献值不大于所述第一阈值且不小于所述第二阈值时,将下一次发射功率调整策略设定为发射功率不变。
具体而言,可以对贡献值进行分级,并根据其级别来设定下一次发射功率调整策略,如下式表征:
Figure PCTCN2022120932-appb-000002
T表示下一次发射功率调整策略,μ1为所述第一阈值,μ2为所述第二阈值。
优选的,所述方法还包括:S112:周期性地优化调整AP的发射功率。
具体而言,在每一次进行功率调整之后,记录客户端的网络性能,并依此实时优化调整AP的发射功率。
在一个优选实施例中,在步骤S11之前,所述方法还包括:
S10:选取待执行功率调整的AP。
具体而言,在无线组网系统中,存在因特殊原因不能进行功率调整的AP,例如系统预先设定或者由用户选定的不需要进行功率调整的AP,则在功率调整时,对这些AP不进行选取,而仅对剩余的可进行功率调整的AP进行调整,能够减轻功率调整对具有特殊需求的AP的影响。
应当理解,本公开实现上述无线组网系统发射功率调整方法中的全部或部分流程,也可以通过计算机程序来指令相关的硬件来完成,计算机程序可存储于一计算机可读存储介质中,该计算机程序在被处理器执行时,可实现上述无线组网系统发射功率调整方法的步骤。其中,计算机程序包括计算机程序代码,计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。计算机可读介质可以包括:能够携带所述计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、电载波信号、电信信号以及软件分发介质等。需要说明的是,计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减,例如在某些司法管辖区,根据立法和专利实践,计算机可读介质不包括电载波信号和电信信号。
图4所示为本公开提供的一种无线组网系统发射功率调整装置的一个优选实施例的结构示意图,所述装置能够实现上述任一实施例所述的无线组网系统发射功率调整方法的全部流程。
如图4所示,所述装置包括:第一选取模块42,用于从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合;其中,N>0;第二选取模块44,用于以所述第一AP集合中的每一个第一AP为中心,选取所述第一AP临近的M个第二AP组成待调节功率的AP集合,形成N个待调节功率的AP集合,每个待调节功率的AP集合中包括M+1个待调节功率的AP;其中,M>0;第一计算模块46,用于获取每一个所述待调节功率的AP下连接的客户端的第一网络性能参数以及每一个待调节功率的AP的第二网络性能参数;第二计算模块48,用于对每一个所述待调节功率的AP随机选择发射功率调整策略,并统计调整后的每一个所述待调节功率的AP下连接的客户端的第三网络性能参数以及调整后的每一个待调节功率的AP的第四网络性能参数;其中,所述发射功率调整策略包括发射功率提高、发射功率降低以及发射功率不变;发射功率调整模块410,用于根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取每一个所述待调节功率的AP的下一次发射功率调整策略。
优选的,所述第一选取模块42具体包括:接收信号强度获取单元421,用于获取任意两个AP之间从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值;受干扰程度排序单元422,用于根据所述从客户端接收的信号的信号强度值、本底噪声、信道利用率、或从邻居接入点接收的信号的信号强度值确定每一个AP的受干扰程度,并按照受干扰程度从大到小的顺序对AP进行排序;第一AP选取单元423,用于从排序后的AP中选取出前N个AP作为所述第一AP。
优选的,所述装置还包括:发射功率降低模块45,用于将N个所述子区域中每一个所述待调节功率的AP的发射功率降低预设幅度。
具体的,所述发射功率降低模块45具体用于:对选取的N个子区域内的所有AP对应各自的无线高速率模式的发射功率均向下调整预设幅度,并保持这些AP的无线低速率模式的发射功率维持不变。
其中,所述预设幅度通过如下公式确定:ΔP=f(d)*(Pmax-Pmin);其中,ΔP为所述预设幅度,f(d)为调整因子,0≤f(d)≤1,Pmax为AP的最大发射功率,Pmin为AP的最小发射功率。
优选的,发射功率调整策略标识如下:+1表示发射功率提高,-1表示发射功率降低,0表示发射功率不变。
优选的,所述第一网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;所述第二网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;所述第三网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种;所述第四网络性能参数包括协商速率值、时延、丢包率以及错包率中的一种或多种。
优选的,所述发射功率调整模块410具体包括:
第一网络性能提升值计算单元4101,用于根据所述第三网络性能参数以及所述第一网络性能参数获取每一个所述待调节功率的AP的第一网络性能提升值;第二网络性能提升值计算单元4102,用于根据所述第四网络性能参数以及所述第二网络性能参数获取每一个所述待调节功率的AP的第二网络性能提升值;贡献值计算单元4103,用于根据所述第一网络性能提升值以及所述第二网络性能提升值获取每一个所述待调节功率的AP对所在待调整功率的AP集合的网络性能提升的贡献值;发射功率调整单元4104,用于根据所述贡献值获取每一个所述待调节功率的AP的下一次发射功率调整策略。
优选的,所述发射功率调整单元4104具体包括:第一调整子单元41041,用于当所述贡献值大于第一阈值时,将下一次发射功率调整策略设定为发射功率提高,并根据贡献值与所述第一阈值的差值获取提高的发射功率值;第二调整子单元41042,用于当所述贡献值小于第二阈值时,将下一次发射功率调整策略设定为发射功率降低,并根据所述第二阈值与贡献值的差值获取降低的发射功率值;其中,所述第二阈值小于所述第一阈值;第三调整子单元41043,用于当所述贡献值不大于所述第一阈值且不小于所述第二阈值时,将下一次发射功率调整策略设定为发射功率不变。
优选的,所述装置还包括:功率调整AP选取模块40,用于选取待执行功率调整的AP。
图5所示为本公开提供的一种无线组网系统发射功率调整设备的一个优选实施例的结构示意图,所述设备能够实现上述任一实施例所述的无线组网系统发射功率调整方法的全部流程。
如图5所示,所述设备包括存储器51、处理器52;其中,所述存储器51中存储有计算机程序,所述计算机程序被配置为由所述处理器52执行,且被所述处理器52执行时实现如上述任一实施例所述的无线组网系统发射功率调整方法。
示例性的,所述计算机程序可以被分割成一个或多个模块/单元,所述一个或者多个模块/单元被存储在所述存储器51中,并由所述处理器52执行,以完成本公开。所述一个或多个模块/单元可以是能够完成特定功能的一系列计算机程序指令段,该指令段用于描述所述计算机程序在所述设备中的执行过程。
所称处理器52可以是中央处理单元(Central Processing Unit,CPU),还可以是其他通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
所述存储器51可用于存储所述计算机程序和/或模块,所述处理器52通过运行或执行存储在所述存储器51内的计算机程序和/或模块,以及调用存储在存储器内的数据,实现所述设备的各种功能。所述存储器51可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器可以包括高速随机存取存储器,还可以包括非易失性存储器,例如硬盘、内存、插接式硬盘,智能存储卡(Smart Media Card,SMC),安全数字(Secure Digital,SD)卡,闪存卡(Flash Card)、至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
此外,本公开实施例还提供一种第一接入点(AP),所述第一接入点为无线网络的组成设备之一,所述第一接入点包括一个或多个处理器,所述一个或多个处理器被配置为:响应于所述第一接入点的受干扰程度满足预设条件,选择与所述第一接入点相邻的多个第二接入点,将所述第一接入点和所述多个第二接入点确定为组成所述无线网络的子网络的接入点;基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,调整所述第一接入点的发射功率。其中,所述的一个或多个处理器可以是上述的处理器52。
作为一个可选方案,所述预设条件为:在组成无线网络中的所有接入点中,所述第一接入点属于前N个受干扰程度最大的接入点之一,其中N>0。作 为一个可选方案,所述第一接入点的受干扰程度由所述第一接入点从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值决定。作为又一个可选方案,所述预设条件还可以是:第一AP为能够进行功率调节的AP。例如,假设组成无线网络的AP中既包括仅支持WIFI 6之前版本的协议的AP,又包括支持WIFI 6及WIFI 6之后的版本的AP。也即此时无线网络可以是混合组网的无线网络。那么此时,如果第一接入点是支持WIFI 6之后的版本的AP并且第一接入点的受干扰程度仍较强,第一接入点可以被配置为执行后续的功率调整步骤。当然,本公开并不以此为限。
在一个示例中,第一接入点从无线网络中的某个网络节点(例如,中央管理器或FAP)中接收到信道扫描指令,然后第一接入点执行信道扫描操作,然后将当前信道的扫描信息(包括信道值和信号强度值)返回至发出命令的网络节点,该网络节点接收到扫描信息之后,从中选取出N个受干扰程度最大的AP。此时,无线网络的网络节点可能确定第一接入点为N个受干扰程度最大的AP之一。在一个示例中,无线组网系统有X个AP,作为第一接入点为其中的第i个AP。第一接入点的当前信道扫描信息为集合{RSSI i,1,RSSI i,2,…,RSSI i,j},j为第一AP可以扫描到的邻居数量,则根据以下形式计算出的第一AP的受干扰程度:
Figure PCTCN2022120932-appb-000003
发出命令的网络节点对noise i从大到小进行排序,而noise值最大的AP认为是受干扰最大的AP。
第一接入点可以从上述的网络节点、该子网络中各个AP、连接至该子网络中各个客户端获取第一网络性能参数或第二网络性能参数。或者第一接入点还可以测量第二网络性能参数。当然本公开并不以此为限。
作为一个示例,假设在功率调整前,连接至子网络的所有客户端对应的协商速率的集合为ratei pre,时延的集合为delayi pre,丢包率的集合为dropi pre,连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数可以被表示为[ratei pre,delayi pre,dropi pre]的函数。例如,第一网络性能参数可以是协商速率的集合ratei pre的最大值、最小值、中位数或平均值。第一网络性能参数也可以是时延的集合delayi pre的最大值、最小值、中位数或平均值。第一网络性能参数也可以是丢包率的集合dropi pre的最大值、最小值、中位数 或平均值。或者,第一网络性能参数还可以是连接至子网络的第j个客户端的协商速率
Figure PCTCN2022120932-appb-000004
时延
Figure PCTCN2022120932-appb-000005
和丢包率
Figure PCTCN2022120932-appb-000006
的加权平均,第j个客户端可以是连接至该子网络中的任意一个客户端,或信道质量最差的客户端等等。
而在功率调整前,子网络的所有接入点对应的协商速率的集合为raten pre,时延的集合为delayn pre,丢包率的集合为dropn pre,那么所述子网络中的至少一个接入点对应的第二网络性能参数可以被表示为[raten pre,delayn pre,dropn pre]的函数。例如,第二网络性能参数可以是协商速率的集合raten pre的最大值、最小值、中位数或平均值。第二网络性能参数也可以是时延的集合delayn pre的最大值、最小值、中位数或平均值。第二网络性能参数也可以是丢包率的集合dropn pre的最大值、最小值、中位数或平均值。或者,第二网络性能参数还可以是连接至子网络的第j个接入点的协商速率
Figure PCTCN2022120932-appb-000007
时延
Figure PCTCN2022120932-appb-000008
和丢包率
Figure PCTCN2022120932-appb-000009
的加权平均,第j个AP可以是第一接入点,或距离第一接入点最远的接入点,或距离第一接入点最近的接入点等等。
作为一个可选方案,所述调整所述第一接入点的发射功率包括:对所述第一接入点的发射功率进行随机调整,所述随机调整包括:提高所述第一接入点的发射功率、降低所述第一接入点的发射功率、维持所述第一接入点的发射功率。
作为一个可选方案,所述第一接入点还包括发射器,所述发射器还被配置为:向所述多个第二接入点发送功率调节指令,所述功率调节指令指示所述多个第二接入点调整发射功率。具体地,如果第一接入点的发射功率被降低,则所述功率调节指令可以指示所述多个第二接入点中的每个第二接入点都降低发射功率。如果第一接入点的发射功率被提高,则所述功率调节指令可以指示所述多个第二接入点中的每个第二接入点都提高发射功率。当然本公开并不限于此。
作为另一个可选方案,可以将包括第一接入点的子网络中的所有接入点的发射功率都降低。此时,第一接入点可以通过以下公式来确定其的发射功率降低的幅度:ΔP=f(d)*(Pmax-Pmin)。其中,ΔP为所述预设幅度,f(d)为调整因子,0≤f(d)≤1,Pmax为第一AP的最大发射功率,Pmin为第一AP的最小发射功率。可选的,f(d)的值是非线性可变的,其可以根据第一AP的最 大发射功率以及最小发射功率而变化,以便调整后的功率值一开始不处于边缘,更便于功率迭代调整过程。
作为另一个可选方案,可以根据第一接入点发送某个数据包的速率模式来调整调整所述第一接入点的发射功率。如上所述,第一接入既可以以无线高速率模式发送数据包也可以以无线低速率模式发送数据包。具体地,响应于所述第一接入点以无线高速率模式发送数据包,降低所述第一接入点发送所述数据包的发射功率;响应于所述第一接入点以无线低速率模式发送数据包,维持所述第一接入点发送所述数据包的发射功率。当然本公开并不以此为限。
作为另一个可选方案,可以将包括第一接入点的子网络中的所有接入点的发射功率都升高。当然本公开并不以此为限。
作为另一个可选方案,第一接入点的功率调整方案是通过来自上述的网络节点(例如,中央管理器或FAP)的上层命令决定的。例如,网络节点可以向第一接入点发送以下发射功率调整标识符,其中,+1表示发射功率提高,-1表示发射功率降低,0表示发射功率不变。
作为另一个可选方案,可以结合上述的上层命令和第一接入点的无线速率模式来确定第一接入点的功率调整方案。第一接入点可能提高的功率和可能降低功率都需要对应各个无线速率模式进行计算。第一接入点增加或者降低功率值可以由如下公式表征:d i=f(P level)。根据不同的功率等级P level,第一接入点可以计算出功率需要调整的程度,即调整后的功率值为:P i←P 0,i-d i。可选地,f(P level)为非线性函数。
作为一个可选方案,所述调整所述第一接入点的发射功率包括:在调整所述第一接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数所述子网络中的至少一个接入点对应的第四网络性能参数连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率。
第一接入点可以从上述的网络节点、该子网络中各个AP、连接至该子网络中各个客户端获取第三网络性能参数或第四网络性能参数。或者第一接入点还可以测量第四网络性能参数。当然本公开并不以此为限。
作为一个示例,假设在功率调整后,连接至子网络的所有客户端对应的协 商速率的集合为ratei cur,时延的集合为delayi cur,丢包率的集合为dropi cur,连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数可以被表示为[ratei cur,delayi cur,dropi cur]的函数。第三网络性能参数的计算方式与第一网络性能参数的计算方式相同或相似,在此就不再赘述。而在功率调整后,子网络的所有接入点对应的协商速率的集合为raten cur,延时的集合为delayn cur,丢包率的集合为dropn cur,那么所述子网络中的至少一个接入点对应的第四网络性能参数可以被表示为[raten cur,delayn cur,dropn cur]。第四网络性能参数的计算方式与第二网络性能参数的计算方式相同或相似,在此就不再赘述。
作为一个可选方案,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括:基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比较值;基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及基于所述第一网络性能比较值和所述第二网络性能比较值,确定所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,基于所述贡献值,再次调整所述第一接入点的发射功率。
作为一个示例,第一网络性能比较值可以被计算为Ps=f(ratei pre,ratei cur,delayi pre,delayi cur,dropi pre,dropi cur),而第二网络性能比较值可以被计算为
Figure PCTCN2022120932-appb-000010
根据Ps和Pa可进一步求出第一接入点对所在待调整功率的AP集合的网络性能提升的贡献值Q=h(Ps,Pa)。然后再根据Q的值将该第一接入点的下一次发射功率调整策略设定为+1或者-1或者0。其中,f,g和h均为线性或非线性的函数,本公开不对f,g和h的具体形式进行限制。
作为一个可选方案,所述基于所述贡献值,再次调整所述第一接入点的发射功率包括:响应于所述贡献值大于第一阈值,基于所述贡献值与所述第一阈值的差值,提高所述第一接入点的发射功率;响应于所述贡献值小于第二阈值,基于所述贡献值与所述第二阈值的差值,降低所述第一接入点的发射功率,其中,所述第二阈值小于所述第一阈值;响应于所述贡献值不大于所述第一阈值且不小于所述第二阈值,维持所述第一接入点的发射功率。
具体而言,可以对贡献值进行分级,并根据其级别来设定第一接入点再次 调整发射功率的方案。例如,如下式表征:
Figure PCTCN2022120932-appb-000011
也即,当T=+1时,第一接入点增加发射功率,当T=0时,第一接入点维持发射功率,当T=-1时,第一接入点降低发射功率,其中,μ1为所述第一阈值,μ2为所述第二阈值。当然,本公开并不以此为限。
此外,本公开实施例提供一种第二接入点(AP),所述第二接入点为无线网络的组成设备之一,所述第二接入点包括一个或多个处理器,所述一个或多个处理器被配置为:响应于与所述第二接入点相邻的第一接入点的受干扰程度满足预设条件,确定所述第二接入点为组成以所述第一接入点为中心的子网络中的接入点之一;基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,调整所述第二接入点的发射功率。例如,第二接入点AP可以从第一接入点或上述的网络节点(中央管理器或FAB)接收到指令,该指令指示其为组成以第一接入点为中心的子网络中的接入点之一。
作为一个可选方案,所述调整所述第二接入点的发射功率包括:在调整所述第二接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数所述子网络中的至少一个接入点对应的第四网络性能参数连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第二接入点的发射功率。
作为一个可选方案,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括:基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比较值;基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及基于所述第一网络性能比较值和所述第二网络性能比较值,所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,基于所述贡献值,再次调整所述第二接入点的发射功率。
此外,本公开实施例提供一种由无线网络执行的方法,包括:从组成所述无线网络的所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合;其中,N>0;以所述第一AP集合中的每一个第一AP为中心,选取所述 第一AP临近的M个第二AP,形成N个子网络,每个子网络包括一个第一AP和M个第二AP;其中,M>0;针对N个子网络中的一个子网络,获取与所述子网络中的AP连接的客户端对应的第一网络性能参数和/或所述子网络中的AP对应的第二网络性能参数;随机选择所述子网络中的AP对应的发射功率调整策略,并基于所述发射功率调整策略,对所述子网络中的AP对应的发射功率进行调整,其中,所述发射功率调整策略包括发射功率提高、发射功率降低以及发射功率不变;统计与调整后的子网络中的AP连接的客户端的第三网络性能参数以及调整后的子网络中的AP对应的第四网络性能参数;根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数,获取所述子网络中的AP的下一次发射功率调整策略。
作为一个可选方案,所述根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取所述子网络中的AP的下一次发射功率调整策略,包括:根据所述第三网络性能参数以及所述第一网络性能参数获取每个子网络中的AP的第一网络性能提升值;根据所述第四网络性能参数以及所述第二网络性能参数获取所述子网络的第二网络性能提升值;根据所述第一网络性能提升值以及所述第二网络性能提升值获取所述子网络中的AP对所述子网络的网络性能提升的贡献值;根据所述贡献值获取所述子网络中的AP的下一次发射功率调整策略。
作为一个可选方案,所述根据所述贡献值获取所述子网络中的AP的下一次发射功率调整策略,包括:当所述贡献值大于第一阈值时,将下一次发射功率调整策略设定为发射功率提高,并根据贡献值与所述第一阈值的差值获取提高的发射功率值;当所述贡献值小于第二阈值时,将下一次发射功率调整策略设定为发射功率降低,并根据所述第二阈值与贡献值的差值获取降低的发射功率值;其中,所述第二阈值小于所述第一阈值;当所述贡献值不大于所述第一阈值且不小于所述第二阈值时,将下一次发射功率调整策略设定为发射功率不变。
作为一个可选方案,所述从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合,包括:获取任意两个AP之间从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值;根据所述从客户端接收的信号的信号强度值、本底噪声、信道利用率、或从邻居接入点接收的信号的信号强度值确定每一个AP的受干扰程度,并按照受干 扰程度从大到小的顺序对AP进行排序;从排序后的AP中选取出前N个AP作为所述第一AP。
作为一个可选方案,在所述形成N个子网络之后,所述方法还包括:将N个所述子网络中每个子网络中的AP的发射功率降低预设幅度。
作为一个可选方案,所述预设幅度通过如下公式确定:ΔP=f(d)*(Pmax-Pmin);其中,ΔP为所述预设幅度,f(d)为调整因子,0≤f(d)≤1,Pmax为AP的最大发射功率,Pmin为AP的最小发射功率。
此外,本公开实施例提供一种第一接入点(AP),所述第一接入点与多个第二接入点共同组成无线网络的一个子网络,所述第一接入点包括一个或多个处理器,所述一个或多个处理器被配置为:基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数所述子网络中的至少一个接入点对应的第二网络性能参数连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,对所述第一接入点的发射功率进行随机调整;在调整所述第一接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数所述子网络中的至少一个接入点对应的第四网络性能参数连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率。
例如,第一接入点可以从无线网络中的某个网络节点(例如,中央管理器或FAP)中接收到信道扫描指令,然后第一接入点执行信道扫描操作,然后将当前信道的扫描信息(包括信道值和信号强度值)返回至发出命令的网络节点。该扫描信息可以包括上述的连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数。网络节点可以向第一接入点发送随机调整第一接入点的发射功率的命令。例如,网络节点可以向第一接入点发送以下发射包含功率调整标识符的命令,其中,+1表示发射功率提高,-1表示发射功率降低,0表示发射功率不变。
接着,第一接入点在根据上述指令调整了其发射功率之后,将再次执行信道扫描操作,然后将本次信道的扫描信息(包括信道值和信号强度值)返回至 发出命令的网络节点。此时,该扫描信息可以包括上述的连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数。
在接收到上述的第三网络性能参数和第四网络性能参数后,网络节点可以向第一接入点发送再次调整第一接入点的发射功率的命令。
作为一个可选方案,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括:基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比较值;基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及基于所述第一网络性能比较值和所述第二网络性能比较值,确定所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,基于所述贡献值,再次调整所述第一接入点的发射功率。
本公开实施例提供的一种无线组网系统发射功率调整方法,通过第一次的随机调整信号受干扰的AP的发射功率,根据连接在无线组网系统内部AP上的客户端的信息动态计算出每一个AP对其所在区域的网络性能的影响程度,后续再根据影响程度进行发射功率的调整,能够使无线组网系统内的每一个AP工作于全局最优状态,进而降低了无线组网系统的信号干扰并提高了无线组网系统的网络性能。
需要说明的是,上述无线组网系统发射功率调整设备包括,但不仅限于,处理器、存储器,本领域技术人员可以理解,图3结构示意图仅仅是上述无线组网系统发射功率调整设备的示例,并不构成对无线组网系统发射功率调整设备的限定,可以包括比图示更多部件,或者组合某些部件,或者不同的部件。
以上所述,仅是本公开的优选实施方式,但本公开的保护范围并不局限于此,应当指出,对于本领域技术人员来说,在不脱离本公开技术原理的前提下,还可以做出若干等效的明显变型方式和/或等同替换方式,这些明显变型方式和/或等同替换方式也应视为本公开的保护范围。

Claims (18)

  1. 一种第一接入点,所述第一接入点为无线网络的组成设备之一,所述第一接入点包括一个或多个处理器,所述一个或多个处理器被配置为:
    响应于所述第一接入点的受干扰程度满足预设条件,选择与所述第一接入点相邻的多个第二接入点,
    将所述第一接入点和所述多个第二接入点确定为组成所述无线网络的子网络的接入点;
    基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,调整所述第一接入点的发射功率。
  2. 如权利要求1所述的第一接入点,其中,所述预设条件为:在组成无线网络中的所有接入点中,所述第一接入点属于前N个受干扰程度最大的接入点之一,其中N>0,其中,所述第一接入点的受干扰程度由所述第一接入点从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值决定。
  3. 如权利要求1所述的第一接入点,其中,所述第一接入点还包括发射器,所述发射器还被配置为:向所述多个第二接入点发送功率调节指令,所述功率调节指令指示所述多个第二接入点调整发射功率。
  4. 如权利要求1所述的第一接入点,其中,所述调整所述第一接入点的发射功率包括:
    在调整所述第一接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;
    基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率。
  5. 如权利要求1所述的第一接入点,其中,所述调整所述第一接入点的发射功率包括:
    响应于所述第一接入点以无线高速率模式发送数据包,降低所述第一接入点发送所述数据包的发射功率;
    响应于所述第一接入点以无线低速率模式发送数据包,维持所述第一接入点发送所述数据包的发射功率。
  6. 如权利要求4所述的第一接入点,其中,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括:
    基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比较值;和/或基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及
    基于所述第一网络性能比较值和/或所述第二网络性能比较值,确定所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,
    基于所述贡献值,再次调整所述第一接入点的发射功率。
  7. 如权利要求6所述的第一接入点,其中,所述基于所述贡献值,再次调整所述第一接入点的发射功率包括:
    响应于所述贡献值大于第一阈值,基于所述贡献值与所述第一阈值的差值,提高所述第一接入点的发射功率;
    响应于所述贡献值小于第二阈值,基于所述贡献值与所述第二阈值的差值,降低所述第一接入点的发射功率,其中,所述第二阈值小于所述第一阈值;
    响应于所述贡献值不大于所述第一阈值且不小于所述第二阈值,维持所 述第一接入点的发射功率。
  8. 如权利要求4所述的第一接入点,其中,
    所述第一网络性能参数包括连接至所述子网络中的接入点的至少一个客户端对应的协商速率值、时延、丢包率以及错包率中的一种或多种;
    所述第二网络性能参数包括所述子网络中的至少一个接入点对应的协商速率值、时延、丢包率以及错包率中的一种或多种;
    所述第三网络性能参数包括连接至所述子网络中的经功率调整后的接入点的至少一个客户端协商速率值、时延、丢包率以及错包率中的一种或多种;
    所述第四网络性能参数包括所述经功率调整后的子网络中的至少一个接入点对应协商速率值、时延、丢包率以及错包率中的一种或多种。
  9. 一种第一接入点,所述第一接入点与多个第二接入点共同组成无线网络的一个子网络,所述第一接入点包括一个或多个处理器,所述一个或多个处理器被配置为:
    基于连接至所述子网络的接入点的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个接入点对应的第二网络性能参数,对所述第一接入点的发射功率进行随机调整;
    在调整所述第一接入点的发射功率后,获取连接至所述子网络的接入点的至少一个客户端对应的第三网络性能参数和/或所述子网络中的至少一个接入点对应的第四网络性能参数;
    基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率。
  10. 如权利要求9所述的第一接入点,其中,所述基于所述第三网络性能参数和/或所述第四网络性能参数,再次调整所述第一接入点的发射功率包括:
    基于所述第一网络性能参数和第三网络性能参数,确定第一网络性能比 较值;和/或基于所述第二网络性能参数和第四网络性能参数,确定第二网络性能比较值;以及
    基于所述第一网络性能比较值和/或所述第二网络性能比较值,确定所述第一接入点的发射功率调整对所述子网络的网络性能提升的贡献值,
    基于所述贡献值,再次调整所述第一接入点的发射功率。
  11. 如权利要求10所述的第一接入点,其中,所述基于所述贡献值,再次调整所述第一接入点的发射功率包括:
    响应于所述贡献值大于第一阈值,基于所述贡献值与所述第一阈值的差值,提高所述第一接入点的发射功率;
    响应于所述贡献值小于第二阈值,基于所述贡献值与所述第二阈值的差值,降低所述第一接入点的发射功率,其中,所述第二阈值小于所述第一阈值;
    响应于所述贡献值不大于所述第一阈值且不小于所述第二阈值,维持所述第一接入点的发射功率。
  12. 一种由无线网络执行的方法,包括:
    从组成所述无线网络的所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合;其中,N>0;
    以所述第一AP集合中的每一个第一AP为中心,选取所述第一AP临近的M个第二AP,形成N个子网络,每个子网络包括一个第一AP和M个第二AP;其中,M>0;
    针对N个子网络中的一个子网络,
    获取与所述子网络中的AP连接的至少一个客户端对应的第一网络性能参数和/或所述子网络中的至少一个AP对应的第二网络性能参数;
    随机选择所述子网络中的AP对应的发射功率调整策略,并基于所述发射功率调整策略,对所述子网络中的AP对应的发射功率进行调整,其中,所述发射功率调整策略包括发射功率提高、发射功率降低以及发射功率不变;
    统计与调整后的子网络中的AP连接的至少一个客户端的第三网络性能参数和/或调整后的子网络中的至少一个AP对应的第四网络性能参数;
    根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数,获取所述子网络中的AP的下一次发射功率调整策略。
  13. 根据权利要求12所述的方法,所述根据所述第一网络性能参数、所述第二网络性能参数、所述第三网络性能参数和/或所述第四网络性能参数获取所述子网络中的AP的下一次发射功率调整策略,包括:
    根据所述第三网络性能参数以及所述第一网络性能参数获取每个子网络中的AP的第一网络性能提升值;和/或根据所述第四网络性能参数以及所述第二网络性能参数获取所述子网络的第二网络性能提升值;
    根据所述第一网络性能提升值和/或所述第二网络性能提升值获取所述子网络中的AP对所述子网络的网络性能提升的贡献值;
    根据所述贡献值获取所述子网络中的AP的下一次发射功率调整策略。
  14. 根据权利要求13所述的方法,所述根据所述贡献值获取所述子网络中的AP的下一次发射功率调整策略,包括:
    当所述贡献值大于第一阈值时,将下一次发射功率调整策略设定为发射功率提高,并根据贡献值与所述第一阈值的差值获取提高的发射功率值;
    当所述贡献值小于第二阈值时,将下一次发射功率调整策略设定为发射功率降低,并根据所述第二阈值与贡献值的差值获取降低的发射功率值;其中,所述第二阈值小于所述第一阈值;
    当所述贡献值不大于所述第一阈值且不小于所述第二阈值时,将下一次发射功率调整策略设定为发射功率不变。
  15. 根据权利要求12所述的方法,其中,所述从所有AP中选取出N个受干扰程度最大的第一AP组成第一AP集合,包括:
    获取任意两个AP之间从客户端接收的信号的信号强度值、本底噪声、信道利用率、从邻居接入点接收的信号的信号强度值;
    根据所述从客户端接收的信号的信号强度值、本底噪声、信道利用率、 或从邻居接入点接收的信号的信号强度值确定每一个AP的受干扰程度,并按照受干扰程度从大到小的顺序对AP进行排序;
    从排序后的AP中选取出前N个AP作为所述第一AP。
  16. 根据权利要求12所述的方法,其中,在所述形成N个子网络之后,所述方法还包括:
    将N个所述子网络中每个子网络中的AP的发射功率降低预设幅度。
  17. 根据权利要求16所述的方法,其中,所述预设幅度通过如下公式确定:
    ΔP=f(d)*(Pmax-Pmin);其中,ΔP为所述预设幅度,f(d)为调整因子,0≤f(d)≤1,Pmax为AP的最大发射功率,Pmin为AP的最小发射功率。
  18. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有计算机程序,所述计算机程序被执行时实现如权利要求12-17中的任意一项所述的方法。
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