WO2021259107A1

WO2021259107A1 - Method for adjusting switching condition, electronic device, and storage medium

Info

Publication number: WO2021259107A1
Application number: PCT/CN2021/100376
Authority: WO
Inventors: 赵家伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2020-06-23
Filing date: 2021-06-16
Publication date: 2021-12-30
Also published as: CN113840376A

Abstract

A method for adjusting a switching condition disclosed in embodiments of the present application, comprising: when a Wi-Fi terminal STA performs network communication with a router on the basis of a first band, detecting a first signal strength indicator value and a first network rate indicator value of the STA in the first band; when the STA switches to a second band and performs network communication with the router, detecting a second signal strength indicator value and a second network rate indicator value of the STA in the second band; determining a network quality indicator change value according to the first signal strength indicator value, the first network rate indicator value, the second signal strength indicator value, and the second network rate indicator value; and according to the network quality indicator change value, adjusting a switching condition for the STA to switch from the first band to the second band.

Description

Method, electronic device and storage medium for adjusting switching conditions

cross reference

This application is filed based on the Chinese patent application with the application number "202010584461.3" and the filing date on June 23, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this by way of introduction. Apply.

Technical field

The embodiments of the present application relate to the field of communications, and in particular, to a method, electronic device, and storage medium for adjusting switching conditions.

Background technique

Wi-Fi dual-band routers and Wi-Fi terminals (abbreviated as STA) have been commonly used. Wi-Fi dual-band routers refer to wireless routers that work in both 2.4G and 5.0G frequency bands. When the STA moves within the Wi-Fi coverage area of the router, it will switch the frequency band. That is, the STA switches between the 2.4G and 5.0G frequency bands of the router according to certain rules to obtain a better network connection. The current implementation scheme is that the router first detects the STA's Wi-Fi signal strength indicator RSSI value in the current frequency band, and then compares the detected RSSI value with the current frequency band switching condition RSSI value to determine whether to switch.

However, directly setting the RSSI value of the frequency band switching condition to a fixed value may cause the STA to fail to improve the network quality even after the frequency band is switched.

Summary of the invention

The embodiment of the application provides a method for adjusting handover conditions, including: detecting the first signal of the STA in the first frequency band during network communication between the Wi-Fi terminal STA and the router based on the first frequency band Strength index value and the first network rate index value; in the process of the STA switching to the second frequency band to communicate with the router, detecting the second signal strength index value of the STA in the second frequency band and The second network rate index value; determine the network quality index change value according to the first signal strength index value, the first network rate index value, the second signal strength index value, and the second network rate index value ; According to the change value of the network quality index, adjust the handover condition for the STA to switch the second frequency band from the first frequency band.

An embodiment of the present application also proposes an electronic device, including: at least one processor; and, a memory communicatively connected with the at least one processor; wherein the memory stores the memory that can be executed by the at least one processor; Instructions, the instructions are executed by the at least one processor, so that the at least one processor can execute the above-mentioned method for adjusting the switching condition.

The embodiment of the present application also proposes a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the method for adjusting the switching condition described above is realized.

Description of the drawings

Fig. 1 is a flowchart of a method for adjusting switching conditions in a first embodiment of the present application;

FIG. 2 is a detailed flowchart of step 104 in FIG. 1;

Fig. 3 is a flowchart of a method for adjusting switching conditions in a second embodiment of the present application;

FIG. 4 is a detailed flowchart of step 204 in FIG. 3;

FIG. 5 is a schematic diagram of the structure of the electronic device in the third embodiment of the present application.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. However, a person of ordinary skill in the art can understand that in each embodiment of the present application, many technical details are proposed for the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed in this application can be realized. The following division of the various embodiments is for convenience of description, and should not constitute any limitation on the specific implementation manner of the present application, and the various embodiments may be combined with each other without contradiction.

The main purpose of the embodiments of the present application is to propose a method, electronic equipment and storage medium for adjusting switching conditions, which are intended to realize automatic adjustment of switching conditions and enable STAs to switch between frequency bands under the adjusted switching conditions, thereby improving frequency band switching. Possibility to improve network quality later.

The first embodiment of the present application relates to a method for adjusting handover conditions, which is applied to a router AP. The AP supports working on at least two frequency bands at the same time, and the center frequencies of different frequency bands are different. The AP is, for example, a Wi-Fi dual-band router, etc. . The AP can establish a network connection with a Wi-Fi terminal STA, which includes terminal devices such as mobile phones and tablets.

The specific process of the method for adjusting handover conditions in this embodiment is shown in FIG. 1, and includes:

Step 101: In the process of the Wi-Fi terminal STA performing network communication with the router based on the first frequency band, detect the first signal strength index value and the first network rate index value of the STA in the first frequency band.

Specifically, when the STA performs network communication with the AP based on the first frequency band, the AP detects the first signal strength index value S1 and the first network rate index value R1 of the STA in the first frequency band in real time. Among them, the signal strength index value is obtained by the AP from the air interface message sent by the STA, and the network rate index value is obtained by the AP by calculating the WIFI physical layer negotiated rate.

Step 102: Detect the second signal strength index value and the second network rate index value of the STA in the second frequency band when the STA switches to the second frequency band to perform network communication with the router.

Specifically, when the switching conditions for the STA to switch from the first frequency band to the second frequency band are met, the AP can control the STA to switch from the first frequency band to the second frequency band through protocols such as 802.11kvr, or the AP can force the STA to switch from the first frequency band to the first frequency band. Disassociate to control the STA to switch from the first frequency band to the second frequency band. When the STA switches to the second frequency band for network communication with the AP, the AP detects in real time the second signal strength index value S2 and the second network rate index value R2 of the STA in the second frequency band.

In an example, the switching condition includes a switching threshold, and the switching threshold is a preset signal strength index value. Specifically, when the center frequency of the first frequency band is less than the center frequency of the second frequency band, if the first signal strength index value S1 If the switching threshold is greater than or equal to the switching threshold, the switching condition for the STA to switch from the first frequency band to the second frequency band is met, and the AP controls the STA to switch from the first frequency band to the second frequency band. When the center frequency of the first frequency band is greater than the center frequency of the second frequency band, if If the first signal strength index value S1 is less than or equal to the switching threshold, the switching condition for the STA to switch from the first frequency band to the second frequency band is satisfied, and the AP controls the STA to switch from the first frequency band to the second frequency band. For example: the first frequency band is 2.4G, the second frequency band is 5G, and the switching threshold is -45dbm. If the first signal strength index value S1 is greater than or equal to -45dbm, the AP controls the STA to switch from 2.4G to 5G; the first frequency band is 5G, The second frequency band is 2.4G, and the switching threshold is -70dbm. If the first signal strength index value S1 is less than or equal to -70dbm, the AP controls the STA to switch 2.4G from 5G. In another example, the switching threshold may also be a preset network rate index value, and the STA frequency band switching method when the switching threshold is the preset network rate index value is similar to the foregoing, and will not be repeated here.

In an example, the first signal strength indicator value, the first network rate indicator value, the second signal strength indicator value, and the second network rate indicator value are respectively the average first signal strength indicator value and the average first signal strength indicator value within a preset period of time. 1. A network rate index value, an average second signal strength index value, and an average network rate index value.

Specifically, the AP calculates the average value of the first signal strength indicator value S1 detected multiple times within a preset time period to obtain the average first signal strength indicator value S1, which will be the first network detected multiple times within the preset time period The rate index value R1 is averaged to obtain the average first network rate index value R1, and the second signal strength index value S2 detected multiple times within the preset time period is averaged to obtain the average second signal strength index value S2 , Calculate the average value of the second network rate index value R2 detected multiple times within the preset time period to obtain the average second network rate index value R2, where the preset time period can be preset according to actual needs. In this embodiment There is no specific limitation. Since the first signal strength indicator value S1, the first network rate indicator value R1, the second signal strength indicator value S2, and the second network rate indicator value R2 may fluctuate, calculating the average value within the preset time period can avoid the indicator value The influence of volatility makes the value of each indicator more accurate.

Step 103: Determine the network quality index change value according to the first signal strength index value, the first network rate index value, the second signal strength index value, and the second network rate index value.

In an example, the network quality index change value is calculated by the following method: D=S1/(S1+S2)+R2/(R1+R2); where D is the network quality index change value, and S1 is the first signal strength index Value, S2 is the second signal strength index value, R1 is the first network rate index value, and R2 is the second network rate index value. For example: the first signal strength index value S1 is -45dbm, R1 is 270Mbps, S2 is -78dbm, R2 is 130Mbps, then D=(-45)/(-45-78)+130/(130+270)=0.69 . Through this calculation method, the AP can calculate the change value of the network quality index.

In an example, the corresponding relationship between the first signal strength index value S1, the first network rate index value R1, the second signal strength index value S2, and the second network rate index value R2 is preset, and the change value of the network quality index, After determining the first signal strength indicator value S1, the first network rate indicator value R1, the second signal strength indicator value S2, and the second network rate indicator value R2, the AP may determine the network quality indicator change value according to the corresponding relationship.

Step 104: Adjust the switching condition for the STA to switch from the first frequency band to the second frequency band according to the change value of the network quality index.

In an example, please refer to FIG. 2. Step 104 includes the following sub-steps:

In sub-step 1041, when the network quality index change value indicates that the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band, adjust the switching condition for the STA to switch from the first frequency band to the second frequency band, and the STA is in The switching difficulty under the adjusted switching condition is higher than the switching difficulty under the switching condition before the adjustment.

In sub-step 1042, when the network quality indicator change value indicates that the network quality of the STA in the second frequency band has not changed or improved compared with the network quality of the STA in the first frequency band, adjust the switching condition for the STA to switch from the first frequency band to the second frequency band , The handover difficulty of the STA under the adjusted handover condition is lower than the handover difficulty under the handover condition before the adjustment.

Specifically, the AP presets the corresponding relationship between the network quality indicator change value D and the network quality change. After determining the network quality indicator change value D, the network can be determined based on the above corresponding relationship and the network quality indicator change value D. The quality change situation, the network quality change situation can indicate the change situation of the network quality of the STA in the second frequency band compared to the network quality of the STA in the first frequency band. For example: the corresponding relationship between the preset network quality index change value D and the network quality change is as follows, when D<0.8, it indicates that the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band; When 0.8<D<1.2, it indicates that the network quality of the STA in the second frequency band has no change compared with the network quality of the STA in the first frequency band; when D>1.2, it indicates that the network quality of the STA in the second frequency band is compared with that of the STA in the first frequency band. The network quality in the first frequency band is improved.

When the network quality after handover drops, indicating that the STA has better network quality in the first frequency band, adjust the handover conditions for the STA to switch from the first frequency band to the second frequency band. The handover difficulty of the STA under the adjusted handover conditions is higher than The difficulty of handover under the handover conditions before the adjustment increases the difficulty of switching the STA from the first frequency band to the second frequency band, so that the STA is in the first frequency band as much as possible, and it is more difficult to switch to the second frequency band; When there is no change in the network quality afterwards, you can try to adjust the handover conditions for the STA to switch from the first frequency band to the second frequency band. The handover difficulty of the STA under the adjusted handover conditions is lower than the handover difficulty under the handover conditions before the adjustment. That is, the difficulty of switching the STA from the first frequency band to the second frequency band is reduced, so that the STA can switch to the second frequency band as easily as possible, so that the network quality may be improved after the frequency band is switched under the adjusted switching conditions; When the later network quality is improved, indicating that the network quality in the second frequency band is better, adjust the handover conditions for the STA to switch from the first frequency band to the second frequency band. The handover difficulty of the STA under the adjusted handover conditions is lower than that before the adjustment. The difficulty of switching under the switching condition of, that is, the difficulty of switching the STA from the first frequency band to the second frequency band is reduced, so that the STA can switch to the second frequency band as easily as possible. Through this method, the AP can reasonably adjust the switching conditions for the STA to switch from the first frequency band to the second frequency band, so that the STA is in a frequency band with better network quality as much as possible.

In one example, the handover condition includes a handover threshold, and the handover threshold is a preset signal strength index value; the handover condition for the STA to switch from the first frequency band to the second frequency band is adjusted, and the handover difficulty of the STA under the adjusted handover condition is higher than The difficulty of switching under the switching conditions before adjustment includes: when the center frequency of the first frequency band is less than the center frequency of the second frequency band, increase the switching threshold, and when the center frequency of the first frequency band is greater than the center frequency of the second frequency band , Adjust the handover threshold lower, the handover difficulty of the STA under the adjusted handover condition is higher than the handover difficulty under the handover condition before the adjustment; adjust the handover condition for the STA to switch from the first frequency band to the second frequency band. The difficulty of switching under the switching conditions is lower than the difficulty of switching under the switching conditions before adjustment, including: when the frequency center of the first frequency band is less than the center frequency of the second frequency band, the switching threshold is lowered, when the center frequency of the first frequency band When it is greater than the center frequency of the second frequency band, the handover threshold is increased, and the handover difficulty of the STA under the adjusted handover condition is lower than the handover difficulty under the handover condition before the adjustment.

Specifically, when the switching condition includes the switching threshold, and the switching threshold is the preset signal strength index value, the signal strength index value will become larger when the STA approaches the AP. When the signal strength index value is greater than or equal to the switching threshold value The AP will control the STA to switch from a frequency band with a low center frequency to a frequency band with a high center frequency. When the STA moves away from the AP, the signal strength indicator value will become smaller. When the signal strength indicator value is less than or equal to the switching threshold, the AP will The control STA will switch from a frequency band with a high center frequency to a frequency band with a low center frequency. Therefore, when the center frequency of the first frequency band is less than the center frequency of the second frequency band, if it is necessary to increase the difficulty for the STA to switch to the second frequency band, the handover threshold needs to be increased. Under the adjusted handover threshold, it is more difficult for the STA to switch to For the second frequency band, switch to the second frequency band when the STA is closer to the AP; when the center frequency of the first frequency band is greater than the frequency of the second frequency band, if it is necessary to increase the difficulty for the STA to switch to the second frequency band, the switching threshold needs to be adjusted Low, it is more difficult to switch to the second frequency band under the adjusted switching threshold, and the STA can only switch to the second frequency band when the STA is farther away from the AP. When the center frequency of the first frequency band is less than the center frequency of the second frequency band, if the difficulty of STA switching to the second frequency band needs to be reduced, the handover threshold needs to be lowered. Under the adjusted handover threshold, it is easier for the STA to switch to the second frequency band. Frequency band, so that the STA can switch to the second frequency band when it is far away from the AP; when the center frequency of the first frequency band is greater than the center frequency of the second frequency band, if you need to reduce the difficulty of STA switching to the second frequency band, you need to switch The threshold is increased, and it is easier for the STA to switch to the second frequency band under the adjusted switching threshold, so that the STA can switch to the second frequency band when it is closer to the AP. Through this method, the switching conditions for the STA to switch from the first frequency band to the second frequency band can be accurately adjusted.

In an example, the handover threshold may also be a preset network rate index value. When the handover threshold is a preset network rate index value, the switching condition for the STA to switch from the first frequency band to the second frequency band is adjusted. The handover difficulty under the handover condition is higher than the handover difficulty under the handover condition before the adjustment, and the handover condition for the STA to switch from the first frequency band to the second frequency band is adjusted. The handover difficulty of the STA under the adjusted handover condition is lower than that before the adjustment. The difficulty of switching under the switching condition is similar to the foregoing, and will not be repeated here.

In one example, increasing the switching threshold value or lowering the switching threshold value includes: adjusting the switching threshold value higher or lowering the switching threshold value according to the preset adjustment step length, so that the setting of the step length can be adjusted to make the switching threshold higher or lower. Quickly increase or decrease the switching threshold. The preset adjustment step length can be set according to actual conditions, and this embodiment does not specifically limit it. For example: the preset adjustment step is 3dbm, and the switching threshold before adjustment is -45dbm. When the switching threshold is increased, the adjusted switching threshold is -42dbm.

The method for adjusting the switching condition of this embodiment will be described below in conjunction with two specific examples.

The first specific example: the first frequency band is 2.4G, the second frequency band is 5G, and the first signal strength index value S1 is greater than or equal to the switching threshold, the AP controls the STA to switch from the first frequency band to the second frequency band, and the switching threshold is the preset value. Set the signal strength index value -45dbm.

During the network communication between STA and AP based on 2.4G, the AP detects that the first signal strength index value S1=-45dbm and the first network rate index value R1=270Mbps of the STA under 2.4G; at this time, the first signal strength The index value S1 is equal to -45dbm, and the AP controls the STA to switch from 2.4G to 5G. When the STA is switched to 5G for network communication with the AP, the AP detects that the second signal strength index value S2 of the STA under 5G is S2=-78dbm and the second 2. The network rate index value R2=130Mbps; then the network quality index value D=(-45)/(-45-78)+130/(130+270)=0.69, according to the preset network quality index change value D and the network Correspondence of quality changes: When D<0.8, the network quality of the STA in the second frequency band is lower than the network quality of the STA in the first frequency band; when 0.8<D<1.2, the network quality of the STA in the second frequency band Compared with the network quality of the STA in the first frequency band, there is no change; when D>1.2, the network quality of the STA in the second frequency band is improved compared with the network quality of the STA in the first frequency band. It can be determined that the STA is in the second frequency band at this time. Compared with the network quality of the STA in the first frequency band, the network quality of the STA is lower than that of the STA in the first frequency band. According to the preset adjustment step size of 3dbm, the handover threshold is increased to -42dbm. The handover difficulty of the STA under the adjusted handover conditions is higher than that of the The handover difficulty under the handover condition before adjustment increases the handover difficulty for the STA to switch from the first frequency band to the second frequency band.

The second specific example: the first frequency band is 5G, the second frequency band is 2.4G, and the first signal strength index value S1 is less than or equal to the switching threshold, the AP controls the STA to switch from the first frequency band to the second frequency band, and the switching threshold is the preset value. Set the signal strength index value -70dbm.

During the network communication between the STA and the AP based on 5G, the AP detects that the first signal strength index value S1=-70dbm and the first network rate index value R1=39Mbps of the STA under 5G; at this time, the first signal strength index value S1 is equal to -70dbm, and AP controls STA to switch 2.4G from 5G. During the process of STA switching to 5G for network communication with AP, AP detects the second signal strength index value of STA under 5G S2=--80dbm and second The network rate index value R2=216Mbps; then the network quality index value D=(-70)/(-70-80)+216/(39+216)=1.31, according to the preset network quality index change value D and network quality Correspondence of changes: When D<0.8, the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band; when 0.8<D<1.2, the network quality of the STA in the second frequency band is similar Compared with the STA's network quality in the first frequency band, there is no change; when D>1.2, the STA's network quality in the second frequency band is better than the STA's network quality in the first frequency band. It can be determined that the STA is in the second frequency band at this time. Compared with the network quality of the STA in the first frequency band, the network quality of the STA is improved. According to the preset adjustment step size of 3dbm, the handover threshold is increased to -67dbm. The handover difficulty of the STA under the adjusted handover conditions is lower than that under the adjustment The handover difficulty under the previous handover conditions reduces the handover difficulty for the STA to switch from the first frequency band to the second frequency band.

In this embodiment, when the Wi-Fi terminal STA performs network communication with the AP based on the first frequency band, the first signal strength index value and the first network rate index value of the STA in the first frequency band are detected; the STA switches to During the network communication between the second frequency band and the AP, the second signal strength index value and the second network rate index value of the STA in the second frequency band are detected; according to the first signal strength index value, the first network rate index value, and the second 2. The signal strength index value and the second network rate index value are used to determine the change value of the network quality index; according to the change value of the network quality index, adjust the switching conditions of the STA from the first frequency band to the second frequency band, and realize automatic adjustment of the switching conditions through this method , Because the network quality index change value can reflect whether the network quality of the STA before and after the frequency band switch is improved and the degree of improvement, which is equivalent to reflecting the change of the STA's network environment, so when adjusting the switching conditions according to the network quality index change value Taking into account the changes in the network environment of the STA, when the STA performs frequency band switching under the adjusted switching conditions, the possibility of improving the network quality after the frequency band switching is improved.

The second embodiment of the present application relates to a method for adjusting handover conditions. The second embodiment is roughly the same as the first embodiment. The main difference is that when the handover conditions are adjusted, the STA's operation in the first frequency band is also considered. Service quality index value. The specific process of the method for adjusting handover conditions in this embodiment is shown in FIG. 3 and includes:

Step 201: In the process of the STA performing network communication with the router based on the first frequency band, detect the first signal strength index value, the first network rate index value, and the service quality index value of the STA in the first frequency band.

Specifically, in the process of the STA performing network communication with the AP based on the first frequency band, the AP detects in real time the first signal strength index value S1, the first network rate index value R1, and the service quality index value Z of the STA in the first frequency band. , The service quality index value Z includes the network packet loss rate Z1 and/or the delay index value Z2, and can reflect the quality of the service experience. When the service quality index value Z meets the current service requirements, it indicates that the service experience is good. When the service quality index value Z does not meet the requirements of the current service, it indicates that the service experience is poor. Among them, different services have different requirements. For example, the service requirement of the video service is that the network packet loss rate is less than 10%, and the delay index value is less than 10ms.

Step 202: Detect the second signal strength index value and the second network rate index value of the STA in the second frequency band when the STA switches to the second frequency band to perform network communication with the router.

Step 203: Determine the network quality index change value according to the first signal strength index value, the first network rate index value, the second signal strength index value, and the second network rate index value.

Steps 202-203 are similar to steps 102-103 in the first embodiment, and will not be repeated here.

Step 204: Adjust the switching condition for the STA to switch from the first frequency band to the second frequency band according to the network quality index change value and the service quality index value.

In an example, please refer to FIG. 4, step 204 includes the following sub-steps:

In sub-step 2041, when the service quality index value meets the current service requirements, and the network quality index change value indicates that the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band, adjust the STA from the first frequency band. Frequency band switching The switching condition of the second frequency band, the switching difficulty of the STA under the adjusted switching condition is higher than the switching difficulty under the switching condition before the adjustment.

In sub-step 2042, when the service quality index value does not meet the current service requirements, and the network quality index change value indicates that the network quality of the STA in the second frequency band is improved compared with the network quality of the STA in the first frequency band, adjust the STA from the first frequency band One frequency band switches the switching condition of the second frequency band, and the switching difficulty of the STA under the adjusted switching condition is lower than the switching difficulty under the switching condition before the adjustment.

Sub-step 2043, when the service quality index value meets the current service requirements, and the network quality index change value indicates that the network quality of the STA in the second frequency band is compared with the network quality of the STA in the first frequency band When increasing, or when the network quality index change value indicates that the network quality of the STA in the second frequency band has not changed compared with the network quality of the STA in the first frequency band, or when the service quality index value does not meet the current service requirements, In addition, the change value of the network quality indicator indicates that when the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band, the switching condition for the STA to switch from the first frequency band to the second frequency band is kept unchanged.

Specifically, different services have different requirements. The AP detects the service quality index value of the STA in the first frequency band, compares it with the service quality index value of the current service requirement, and can determine whether the service quality index value meets the current service Demand. When the service quality index value includes the network packet loss rate Z1 or the delay index value Z2, the current service business demand is the network packet loss rate Z1 or the delay index value Z2 is less than the preset value, then the detected network packet loss rate Z1 Or when the delay index value Z2 is less than the preset value, the current service is satisfied, and when the network packet loss rate Z1 or the delay index value Z2 is greater than the preset value, the current service is not satisfied; when the service quality index value includes the network packet loss rate Z1 and The delay index value Z2, the current service requirement is that the network packet loss rate is less than the first preset value, and the delay index value is less than the second preset value, then the detected network packet loss rate Z1 is less than the first preset value , And when the delay index value Z2 is less than the second preset value, the current service requirements are met; when the network packet loss rate Z1 is greater than the first preset value, or the delay index value Z2 is greater than the second preset value, the current service requirements are not met .

The AP presets the corresponding relationship between the network quality indicator change value D and the network quality change. After the network quality indicator change value D is determined, the network quality change can be determined based on the above corresponding relationship and the relationship between the network quality indicator change value D. The network quality change situation can indicate the change situation of the network quality of the STA in the second frequency band compared to the network quality of the STA in the first frequency band. For example: the corresponding relationship between the preset network quality index change value D and the network quality change is as follows, when D<0.8, it indicates that the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band; When 0.8<D<1.2, it indicates that the network quality of the STA in the second frequency band has no change compared with the network quality of the STA in the first frequency band; when D>1.2, it indicates that the network quality of the STA in the second frequency band is compared with that of the STA in the first frequency band. The network quality in the first frequency band is improved.

When the service quality index value meets the needs of the current service and the network quality after the handover has declined, it means that the STA has better network quality in the first frequency band. Then, adjust the handover condition for the STA to switch from the first frequency band to the second frequency band. The handover difficulty of the STA under the adjusted handover condition is higher than the handover difficulty under the handover condition before the adjustment, which increases the difficulty of switching the STA from the first frequency band to the second frequency band, so that the STA is in the first place as much as possible. Frequency band, it is difficult to switch to the second frequency band; when the service quality index value does not meet the needs of the current service, and the network quality after the handover has improved, it means that the network quality in the second frequency band is better, then adjust the STA by The switching conditions for the first frequency band to switch to the second frequency band, the switching difficulty of the STA under the adjusted switching conditions is lower than the switching difficulty under the switching conditions before the adjustment, that is, the switching of the STA from the first frequency band to the second frequency band is reduced Difficulty, so that the STA can switch to the second frequency band as easily as possible; when the service quality index value meets the needs of the current service, and the network quality after the handover has improved, it means that the STA’s network quality before and after the handover is better. That is, the current handover conditions are good. At this time, keeping the handover conditions unchanged can make the network quality before and after the handover be in a better state, or, when the network quality after the handover does not change, adjusting the handover conditions at this time cannot guarantee the improvement. The possibility of improving the network quality after the frequency band is switched under the adjusted switching conditions, so the switching conditions remain unchanged, or when the service quality index value does not meet the needs of the current service, and the network quality after the switching decreases, It means that the network quality before and after the switching is not very good. Even if the switching conditions are adjusted, the possibility of improving the network quality after the frequency band switching under the adjusted switching conditions cannot be guaranteed. Therefore, the switching conditions are kept unchanged, that is, the STA is switched from the first frequency band. The difficulty of switching to the second frequency band remains unchanged. Through this method, the AP can reasonably adjust the handover conditions for the STA to switch from the first frequency band to the second frequency band.

In one example, the handover condition includes a handover threshold, and the handover threshold is a preset signal strength index value; the handover condition for the STA to switch from the first frequency band to the second frequency band is adjusted, and the handover difficulty of the STA under the adjusted handover condition is higher than The difficulty of switching under the switching conditions before adjustment includes: when the center frequency of the first frequency band is less than the center frequency of the second frequency band, increase the switching threshold, and when the center frequency of the first frequency band is greater than the center frequency of the second frequency band , Adjust the handover threshold lower, the handover difficulty of the STA under the adjusted handover condition is higher than the handover difficulty under the handover condition before the adjustment; adjust the handover condition for the STA to switch from the first frequency band to the second frequency band. The difficulty of switching under the switching conditions is lower than the difficulty of switching under the switching conditions before adjustment, including: when the frequency center of the first frequency band is less than the center frequency of the second frequency band, the switching threshold is lowered, when the center frequency of the first frequency band When it is greater than the center frequency of the second frequency band, the handover threshold is increased so that the handover difficulty of the STA under the adjusted handover condition is lower than the handover difficulty under the handover condition before the adjustment.

The first specific example: the first frequency band is 2.4G, the second frequency band is 5G, and the first signal strength index value S1 is greater than or equal to the switching threshold, the AP controls the STA to switch from the first frequency band to the second frequency band, and the switching threshold is the preset value. Suppose the signal strength index value is -45dbm, the current service requirement is that the network packet loss rate is less than 10%, and the delay index value is less than 10ms.

During the network communication between the STA and the AP based on 2.4G, the AP detects that the first signal strength index value S1=-45dbm of the STA under 2.4G, the first network rate index value R1=270Mbps, and the service quality index value Z includes The network packet loss rate Z1=5% and the delay index value Z2=8ms; at this time, the network packet loss rate Z1<10% and the delay index value Z2<10ms, then the service quality index value meets the current business needs, and, The first signal strength index value S1 is equal to -45dbm, and the AP controls the STA to switch from 2.4G to 5G. When the STA switches to 5G to communicate with the AP, the AP detects the second signal strength index value of the STA under 5G S2= -78dbm and the second network rate index value R2=130Mbps; then the network quality index value D=(-45)/(-45-78)+130/(130+270)=0.69, which changes according to the preset network quality index Correspondence between value D and changes in network quality: when D<0.8, the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band; when 0.8<D<1.2, the STA is in the second frequency band Compared with the network quality of the STA in the first frequency band, the network quality under the network has no change; when D>1.2, the network quality of the STA in the second frequency band is improved compared with the network quality of the STA in the first frequency band. The network quality in the second frequency band is lower than that of the STA in the first frequency band, that is, the service quality index value meets the current service requirements, and the network quality index change value indicates that the STA is in the second frequency band. The network quality in the frequency band is lower than the network quality of the STA in the first frequency band. According to the preset adjustment step size of 3dbm, the handover threshold is increased to -42dbm. The handover difficulty is higher than the handover difficulty under the handover condition before adjustment, which increases the handover difficulty for the STA to switch from the first frequency band to the second frequency band.

The second specific example: the first frequency band is 5G, the second frequency band is 2.4G, and the first signal strength index value S1 is less than or equal to the switching threshold, the AP controls the STA to switch from the first frequency band to the second frequency band, and the switching threshold is the preset value. Suppose the signal strength index value is -70dbm, the current service requirement is that the network packet loss rate is less than 10%, and the delay index value is less than 10ms.

During the network communication between the STA and the AP based on 5G, the AP detects that the first signal strength index value S1=-70dbm of the STA under 5G, the first network rate index value R1=39Mbps, and the service quality index value Z includes network loss. The packet rate Z1=20%, the delay index value Z2=15ms; at this time, the network packet loss rate Z1>10% and the delay index value Z2>10ms, the service quality index value does not meet the current service requirements, and the first A signal strength index value S1 is equal to -70dbm, AP controls the STA to switch 2.4G from 5G, and the AP detects the second signal strength index value S2 of the STA under 5G when the STA is switched to 5G for network communication with the AP. 80dbm and the second network rate index value R2=216Mbps; then the network quality index value D=(-70)/(-70-80)+216/(39+216)=1.31, according to the preset network quality index change value Correspondence between D and network quality changes: When D<0.8, the network quality of the STA in the second frequency band is lower than that of the STA in the first frequency band; when 0.8<D<1.2, the STA is in the second frequency band Compared with the network quality of the STA in the first frequency band, the network quality of STA has no change; when D>1.2, the network quality of the STA in the second frequency band is improved compared with the network quality of the STA in the first frequency band, that is, the service quality index value The current service requirements are not met, and the network quality index change value indicates that the network quality of the STA in the second frequency band is improved compared with the network quality of the STA in the first frequency band, then the switch will be switched according to the preset adjustment step of 3dbm The threshold is increased to -67dbm, and the handover difficulty of the STA under the adjusted handover condition is lower than the handover difficulty under the handover condition before the adjustment, which reduces the difficulty of switching the STA from the first frequency band to the second frequency band.

In this embodiment, since the service quality index value can also reflect the current network environment to a certain extent, the AP adjusts the switching conditions according to the network quality index change value and the service quality index value, which can comprehensively consider the current network environment and network environment The changed situation makes the adjusted handover conditions more reasonable, and further improves the possibility that the network quality will be improved after the STA performs frequency band switching under the adjusted handover conditions.

The division of the steps of the various methods above is only for clarity of description. When implemented, it can be combined into one step or some steps can be split into multiple steps, as long as they include the same logical relationship, they are all within the scope of protection of this patent. ; Adding insignificant modifications to the algorithm or process or introducing insignificant design, but not changing the core design of the algorithm and process are within the scope of protection of the patent.

The third embodiment of the present application relates to an electronic device. As shown in FIG. 5, it includes: at least one processor 302; and a memory 301 communicatively connected with the at least one processor; An instruction executed by one processor 302 is executed by at least one processor 302, so that the at least one processor 302 can execute the method for adjusting the switching condition in the foregoing embodiment.

The memory 301 and the processor 302 are connected in a bus manner. The bus may include any number of interconnected buses and bridges. The bus connects one or more of the processors 302 and various circuits of the memory 301 together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on the transmission medium. The data processed by the processor 302 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 302.

The processor 302 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 301 may be used to store data used by the processor 302 when performing operations.

The fourth embodiment of the present application relates to a computer-readable storage medium, which stores a computer program. When the computer program is executed by the processor, the above method embodiment is realized.

That is, those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments can be implemented by instructing relevant hardware through a program. The program is stored in a storage medium and includes several instructions to enable a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) that executes all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in actual applications, various changes can be made in form and details without departing from the spirit and spirit of the present application. Scope.

Claims

A method for adjusting handover conditions, including:

In the process of the Wi-Fi terminal STA performing network communication with the router based on the first frequency band, detecting the first signal strength index value and the first network rate index value of the STA in the first frequency band;

When the STA switches to the second frequency band to perform network communication with the router, detecting the second signal strength index value and the second network rate index value of the STA in the second frequency band;

Determine a network quality indicator change value according to the first signal strength indicator value, the first network rate indicator value, the second signal strength indicator value, and the second network rate indicator value;

Adjust the switching condition for the STA to switch from the first frequency band to the second frequency band according to the change value of the network quality index.
The method for adjusting handover conditions according to claim 1, wherein the method further comprises:

In the process of the STA performing network communication with the router based on the first frequency band, detecting the service quality index value of the STA in the first frequency band;

The adjusting the switching condition for the STA to switch from the first frequency band to the second frequency band according to the change value of the network quality index includes:

According to the network quality index change value and the service quality index value, the switching condition for the STA to switch from the first frequency band to the second frequency band is adjusted.
The method for adjusting handover conditions according to claim 1 or 2, wherein the adjusting the handover conditions for the STA to switch from the first frequency band to the second frequency band according to the change value of the network quality index comprises:

When the network quality indicator change value indicates that the network quality of the STA in the second frequency band is lower than the network quality of the STA in the first frequency band, adjust the STA to use the first frequency band Switching the handover condition of the second frequency band, the handover difficulty of the STA under the handover condition after adjustment is higher than the handover difficulty under the handover condition before adjustment;

When the change value of the network quality indicator indicates that the network quality of the STA in the second frequency band has not changed or improved compared with the network quality of the STA in the first frequency band, the adjustment of the STA by the The first frequency band switches the switching condition of the second frequency band, and the switching difficulty of the STA under the adjusted switching condition is lower than the switching difficulty under the switching condition before the adjustment.
The method for adjusting handover conditions according to claim 2 or 3, wherein said adjusting said STA to switch said second frequency band from said first frequency band according to said network quality index change value and said service quality index value. Frequency band switching conditions include:

When the service quality index value meets current service requirements, and the network quality index change value indicates that the network quality of the STA in the second frequency band is compared with the network quality of the STA in the first frequency band When falling, adjust the handover condition for the STA to switch from the first frequency band to the second frequency band, and the handover difficulty of the STA under the handover condition after adjustment is higher than that under the handover condition before adjustment Switch difficulty

When the service quality index value does not meet the requirements of the current service, and the network quality index change value indicates that the network quality of the STA in the second frequency band is compared with the network quality of the STA in the first frequency band When the quality is improved, adjust the handover condition for the STA to switch from the first frequency band to the second frequency band, and the handover difficulty of the STA under the handover condition after the adjustment is lower than that under the handover condition before the adjustment Difficulty of switching;

When the service quality index value meets the current service requirements, and the network quality index change value indicates that the network quality of the STA in the second frequency band is compared with the network quality of the STA in the first frequency band When increasing, or when the network quality index change value indicates that the network quality of the STA in the second frequency band has not changed compared with the network quality of the STA in the first frequency band, or when all The service quality index value does not meet the requirements of the current service, and the network quality index change value indicates that the network quality of the STA in the second frequency band is lower than the network quality of the STA in the first frequency band At this time, the switching condition for the STA to switch from the first frequency band to the second frequency band is kept unchanged.
The method for adjusting switching conditions according to claim 3 or 4, wherein the switching conditions include a switching threshold, and the switching threshold is a preset signal strength index value;

The adjustment of the switching condition for the STA to switch the second frequency band from the first frequency band, the switching difficulty of the STA under the switching condition after the adjustment is higher than the switching under the switching condition before the adjustment Difficulty, including:

When the center frequency of the first frequency band is less than the center frequency of the second frequency band, the switching threshold is increased, and when the center frequency of the first frequency band is greater than the center frequency of the second frequency band, the switching threshold is increased. The handover threshold is lowered, and the handover difficulty of the STA under the handover condition after the adjustment is higher than the handover difficulty under the handover condition before the adjustment;

The adjustment of the switching condition for the STA to switch from the first frequency band to the second frequency band, the switching difficulty of the STA under the adjusted switching condition is lower than that of the switching under the switching condition before the adjustment Difficulty, including:

When the frequency center of the first frequency band is less than the center frequency of the second frequency band, the switching threshold is lowered, and when the center frequency of the first frequency band is greater than the center frequency of the second frequency band, the switching threshold is lowered. The handover threshold is increased, and the handover difficulty of the STA under the handover condition after the adjustment is lower than the handover difficulty under the handover condition before the adjustment.
The method for adjusting handover conditions according to claim 5, wherein said adjusting said switching threshold value higher or said adjusting said switching threshold value lower comprises:

According to a preset adjustment step size, the switching threshold is adjusted higher or the switching threshold is lowered.
The method for adjusting handover conditions according to any one of claims 1 to 6, wherein the first signal strength index value, the first network rate index value, and the second signal strength index value are And the second network rate index value to determine the change value of the network quality index, including:

D=S1/(S1+S2)+R2/(R1+R2);

Wherein, D is the change value of the network quality index, S1 is the first signal strength index value, S2 is the second signal strength index value, R1 is the first network rate index value, and R2 is the first network rate index value. 2. Network speed index value.
The method for adjusting handover conditions according to any one of claims 1 to 7, wherein the first signal strength index value, the first network rate index value, the second signal strength index value, and the The second network rate indicator values are respectively the average first signal strength indicator value, the average first network rate indicator value, the average second signal strength indicator value, and the average network rate indicator value within the preset time period.
An electronic device including:

At least one processor; and,

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute any one of claims 1 to 8. The method of adjusting the switching conditions described above.
A computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for adjusting switching conditions according to any one of claims 1 to 8.