CN117479251A - Dual-frequency and roaming combined network switching method, electronic equipment and storage medium - Google Patents

Dual-frequency and roaming combined network switching method, electronic equipment and storage medium Download PDF

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Publication number
CN117479251A
CN117479251A CN202311811080.4A CN202311811080A CN117479251A CN 117479251 A CN117479251 A CN 117479251A CN 202311811080 A CN202311811080 A CN 202311811080A CN 117479251 A CN117479251 A CN 117479251A
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network
signal strength
access point
frequency band
roaming
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CN202311811080.4A
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CN117479251B (en
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王海鹏
黄四好
石兵
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Shenzhen Sunray Electronics Co ltd
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Shenzhen Sunray Electronics Co ltd
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Priority to CN202311811080.4A priority Critical patent/CN117479251B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

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

Abstract

The application relates to a wireless communication network, and discloses a network switching method of double-frequency and roaming combination, which comprises the following steps: monitoring first signal intensity of a first frequency band network of a first access point used by equipment; when the first signal strength meets a first preset condition, detecting whether a second signal strength of a network provided by a second access point meets a second preset condition; if not, switching the network used by the equipment to a second frequency band network of the first access point; if yes, roaming the network used by the equipment to the network provided by the second access point. An electronic device and a computer-readable storage medium are also disclosed. The method aims at realizing network switching of double-frequency and roaming combination, so that the device can automatically select optimal network connection in networks with different wireless access points and different frequency bands, and the network communication quality and stability of the device are guaranteed to the greatest extent.

Description

Dual-frequency and roaming combined network switching method, electronic equipment and storage medium
Technical Field
The present disclosure relates to the field of wireless communication networks, and in particular, to a network switching method for combining dual-band and roaming, an electronic device, and a computer readable storage medium.
Background
Current wireless MESH networks may provide roaming and dual-band preference functions. The roaming function refers to the ability of the device to seamlessly switch between different access points when the device moves to a new wireless access point, and the roaming function is not concerned with the problem of the quality of network frequency bands, and is more concerned with the switching selection of the device between different access points; the dual-frequency preferred function means that in the case that the device supports dual-frequency wireless signals, a more stable frequency band can be automatically selected according to the current environment and signal quality, and particularly in a crowded wireless environment, the dual-frequency preferred function can provide more reliable connection performance.
However, since roaming and dual-band preference functions are of different interest in the network connection process, they tend to be independently effective. Namely, when the electronic equipment uses the wireless MESH network to communicate at present, either a roaming function or a dual-frequency optimal function is considered, the two functions are not considered in combination, the advantages of the two functions cannot be fully exerted, and the network communication quality and stability of the equipment are difficult to guarantee to the greatest extent.
The foregoing is merely provided to facilitate an understanding of the principles of the present application and is not admitted to be prior art.
Disclosure of Invention
The main objective of the present application is to provide a network switching method for dual-band and roaming combination, an electronic device and a computer readable storage medium, which aim to realize network switching for dual-band and roaming combination, so that the device can automatically select an optimal network connection in networks with different wireless access points and different frequency bands, thereby ensuring the network communication quality and stability of the device to the greatest extent.
In order to achieve the above objective, the present application provides a network switching method of dual-band and roaming combination, which includes the following steps:
monitoring first signal intensity of a first frequency band network of a first access point used by equipment;
when the first signal strength meets a first preset condition, detecting whether a second signal strength of a network provided by a second access point meets a second preset condition;
if not, switching the network used by the equipment to a second frequency band network of the first access point;
if yes, roaming the network used by the equipment to the network provided by the second access point.
Optionally, if the frequency band corresponding to the first frequency band network is higher than the frequency band corresponding to the second frequency band network, the first preset condition includes that the first signal strength is smaller than a first threshold value, and the second preset condition includes that the second signal strength meets a second threshold value;
Or, if the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network, the first preset condition includes that the first signal strength meets a third threshold, and the second preset condition includes that the second signal strength is greater than the first signal strength.
Optionally, after the step of monitoring the first signal strength of the first frequency band network of the first access point used by the device, the method further includes:
when the first signal strength does not meet the first preset condition and the second signal strength does not meet the second preset condition, maintaining the network currently used by the equipment unchanged;
and when the first signal strength does not meet the first preset condition and the second signal strength meets the second preset condition, roaming the network used by the equipment to the network provided by the second access point.
Optionally, the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network; after the step of monitoring the first signal strength of the first frequency band network of the first access point used by the device, the method further includes:
detecting whether the second signal strength meets a fourth threshold value when the first signal strength is detected to be reduced;
If the fourth threshold is met, roaming the network used by the device to the network provided by the second access point;
if the fourth threshold is not met, the network currently used by the device is maintained unchanged.
Optionally, the step of detecting whether the second signal strength meets a fourth threshold when the first signal strength is detected to be reduced includes:
detecting whether the second signal strength satisfies a fourth threshold when the first signal strength is detected to decrease and when the second signal strength is detected not to decrease.
Optionally, the step of detecting whether the second signal strength meets a fourth threshold value when the first signal strength is detected to decrease and when the second signal strength is detected not to decrease includes:
when the first signal intensity is detected to be reduced and the second signal intensity is detected to be enhanced within a preset time period, a first change rate of the first signal intensity within the preset time period and a second change rate of the second signal intensity within the preset time period are obtained;
and detecting whether the second signal strength meets a fourth threshold value or not when detecting that the difference value between the first change rate and the second change rate is in a preset numerical value interval.
Optionally, the network switching method of the dual-frequency and roaming combination further includes:
when the network used by the equipment is required to roam to the network provided by the second access points, if a plurality of second access points are detected, acquiring the path hop count and the hanging terminal count corresponding to each second access point;
detecting a second access point meeting a third preset condition, wherein the third preset condition comprises that the second signal strength meets a fifth threshold value, the number of path hops meets a fourth preset condition, and the number of hanging terminals is smaller than a preset number;
and roaming the network used by the equipment to a second access point meeting the third preset condition.
Optionally, after the step of detecting the second access point that meets the third preset condition, the method further includes:
if a second access point which does not meet the third preset condition is detected, adjusting the fifth threshold value and/or the preset quantity based on a preset rule so as to update the third preset condition;
and returning to the step of executing the second access point which meets the third preset condition based on the updated third preset condition.
To achieve the above object, the present application further provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the network handover method of dual frequency and roaming combination as described above.
To achieve the above object, the present application further provides a computer readable storage medium having a computer program stored thereon, which when executed by a processor, implements the steps of the network handover method of dual-frequency and roaming combination as described above.
According to the network switching method, the electronic equipment and the computer readable storage medium for the dual-frequency roaming combination, the network switching of the dual-frequency roaming combination is realized, the equipment can automatically select better network connection in networks with different wireless access points and different frequency bands by dynamically judging and selecting the signal intensity threshold value and the network quality of the equipment, the advantages of dual-frequency optimization and the roaming function are achieved, and the network communication quality and the stability of the equipment are guaranteed to the greatest extent. The network switching method of the double-frequency and roaming combination can improve the network performance of equipment and improve the user experience.
Drawings
Fig. 1 is a schematic diagram of a network switching method of dual-band and roaming combination according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating steps of a network handover method with dual-band and roaming combinations according to another embodiment of the present application;
fig. 3 is a schematic diagram illustrating steps of a network handover method according to a combination of dual-band and roaming in accordance with another embodiment of the present application;
Fig. 4 is a schematic block diagram of an internal structure of an electronic device according to an embodiment of the present application.
The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the present application and should not be construed as limiting the present application, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts based on the embodiments in the present application are within the scope of protection of the present application.
Furthermore, the description of "first," "second," and the like, when referred to in this application, is for descriptive purposes only (e.g., to distinguish between identical or similar elements) and is not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.
Referring to fig. 1, in an embodiment, the network handover method of the dual-band and roaming combination includes:
step S10, monitoring first signal intensity of a first frequency band network of a first access point used by equipment;
step S20, detecting whether second signal intensity of a network provided by a second access point meets a second preset condition or not when the first signal intensity meets the first preset condition;
step S30, if not, switching the network used by the equipment to a second frequency band network of the first access point;
and step S40, if yes, roaming the network used by the equipment to the network provided by the second access point.
In this embodiment, the execution terminal of the embodiment may be an electronic device, or may be another device or apparatus for controlling an electronic device.
Optionally, the wireless access point to which the device is currently connected is marked as a first access point, and other wireless access points except the first access point, which can be detected by the device, are marked as second access points.
Optionally, each wireless access point provides at least two wireless networks of frequency bands, which are a first frequency band network and a second frequency band network respectively.
Alternatively, after the device is connected to the first frequency band network of the first access point, the signal strength of the network may be monitored periodically or in real time. The detection of signal strength may be performed through a wireless interface of the device, such as by a Received Signal Strength Indicator (RSSI) or other similar signal quality indicator. The following will describe an example in which the signal strength is taken as an RSSI value.
Optionally, when the frequency band corresponding to the first frequency band network is higher than the frequency band corresponding to the second frequency band network (for example, the first frequency band network is a 5G network, and the second frequency band network is a 2.4G network), if the device detects that the first signal strength is decreasing, it starts to detect whether the first signal strength meets a first preset condition; when the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network (for example, the first frequency band network is a 2.4G network, and the second frequency band network is a 5G network), and when the device monitors that the first signal strength rises, it starts to detect whether the first signal strength meets a first preset condition. The following description will take a case in which a dual-frequency network provided by a wireless access point is a 5G network and a 2.4G network, respectively.
Alternatively, the preset condition may be set according to the network performance requirement, such as the requirement of the minimum signal strength threshold or other signal quality indicators.
Optionally, if the first signal strength meets the first preset condition, further detecting whether the second signal strength corresponding to the network provided by the second access point meets the second preset condition. This may be achieved by scanning the wireless network surrounding the device, i.e. the network provided by the second access point, for the second signal strength.
Optionally, if the frequency band corresponding to the first frequency band network is higher than the frequency band corresponding to the second frequency band network, the first preset condition includes that the first signal strength is smaller than a first threshold, and the second preset condition includes that the second signal strength meets a second threshold. Wherein the first threshold may be characterized as the lowest signal strength required when using the 5G network of the first access point, i.e. once below the threshold, the quality of the 2.4G network is better than the quality of the 5G network, so the first threshold may also be characterized as a decision threshold for deciding whether to switch to the 2.4G network; the second threshold may be characterized as the lowest signal strength required when using a 5G network of the second access point.
Optionally, if the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network, the first preset condition includes that the first signal strength meets a third threshold, and the second preset condition includes that the second signal strength is greater than the first signal strength. Wherein the third threshold is greater than or equal to the first threshold and, when the third threshold is equal to the first threshold, characterized as the minimum signal strength required when using the 5G network of the first access point; however, in order to meet the network quality requirement of the device on the high-frequency network, the third threshold may be set to be larger than the required minimum signal strength (the specific deviation value may be set according to the actual situation, which is not limited here), so as to ensure that the device can use the high-frequency network with better quality.
It should be understood that the specific values of the first, second and third thresholds may be set according to the network situation and the equipment requirements, so as to ensure that the signal strength meets the required conditions, or may be set using empirical values or experimental data.
Optionally, if the frequency band corresponding to the first frequency band network is higher than the frequency band corresponding to the second frequency band network, when the first signal strength is smaller than the first threshold, determining that the first signal strength meets a first preset condition, and if it is detected that the second signal strength reaches a second threshold (i.e., the second signal strength meets the second preset condition), it is indicated that the second frequency band network of the second access point provides better network quality and signal strength, then the network used by the device may be roamed to the first frequency band network provided by the second access point, so that the device may use the high frequency band network with good network quality provided by the second access point; when the first signal strength is smaller than the first threshold, if the second signal strength is smaller than the second threshold, the second signal strength is detected to not meet the second preset condition, the network used by the equipment is switched to the second frequency band network of the first access point, so that the equipment can use the first access point to provide a more stable low frequency band network, and the stability of network communication is ensured.
Optionally, if the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network, when the first signal strength is greater than or equal to a third threshold, determining that the first signal strength meets a first preset condition, and if it is detected that the second signal strength is greater than the first signal strength (i.e., the second signal strength meets a second preset condition), indicating that the network quality of the second access point is better than that of the first access point, roaming the network used by the device to the second frequency band network provided by the second access point, so that the device can use the high-frequency band network with better network quality provided by the second access point; when the first signal strength reaches the third threshold, if the second signal strength is detected to be smaller than or equal to the first signal strength (i.e. the second signal strength does not meet the second preset condition), which indicates that the network quality of the second access point is not better than that of the first access point, the network used by the device is switched to the second frequency band network of the first access point at this time, so that the device can use the high frequency band network with good network quality provided by the first access point.
The switching strategy can be dynamically selected according to the current network condition and signal strength, so that the network connection quality and user experience of the equipment are improved.
In an embodiment, network switching of dual-frequency and roaming combination is realized, and by dynamically judging and selecting the signal intensity threshold value and the network quality of the equipment, the equipment can automatically select better network connection in networks with different wireless access points and different frequency bands, and the network switching device has the advantages of dual-frequency optimization and roaming function, and ensures the network communication quality and stability of the equipment to the greatest extent. The network switching method of the double-frequency and roaming combination can improve the network performance of equipment and improve the user experience.
In an embodiment, referring to fig. 2, after the step of monitoring the first signal strength of the first frequency band network of the first access point used by the device, the method further includes:
step S50, when the first signal strength does not meet the first preset condition and the second signal strength does not meet the second preset condition, maintaining the network currently used by the equipment unchanged;
step S60, when the first signal strength does not meet the first preset condition and the second signal strength meets the second preset condition, roaming the network used by the equipment to the network provided by the second access point.
In this embodiment, if the frequency band corresponding to the first frequency band network is higher than the frequency band corresponding to the second frequency band network, when the first signal strength is greater than or equal to the first threshold, it is determined that the first signal strength does not meet the first preset condition, and if it is detected that the second signal strength is smaller than the second threshold (i.e., the second signal strength does not meet the second preset condition), it is indicated that the network quality of the second access point is different from the first frequency band network, and in view of that the network quality of the first frequency band network of the first access point can also meet the use requirement, the network currently used by the device is maintained unchanged.
Optionally, if the frequency band corresponding to the first frequency band network is higher than the frequency band corresponding to the second frequency band network, when the first signal strength is greater than or equal to the first threshold, if the second signal strength is detected to be greater than or equal to the second threshold, the second signal strength meets a second preset condition, which indicates that the network quality of the first frequency band network of the second access point is better than the quality of the first frequency band network of the first access point (because the first signal strength currently meets the first preset condition, but because the first signal strength is in a decreasing trend, the network quality is worse than the network provided by the second access point), the network used by the device can be roamed to the network provided by the second access point at this time, so that the device can access the first frequency band network of the second access point, and the device can use the high frequency band network with good network quality provided by the second access point. In some alternative embodiments, in order to ensure accuracy of the network quality determination of the second access point, the second preset condition may further include that the second signal strength is greater than the first signal strength, when the first signal strength is greater than or equal to the first threshold, the second signal strength is detected to be greater than or equal to the second threshold, and when the second signal strength is detected to be greater than the first signal strength, the network used by the device is roamed to the network provided by the second access point.
Optionally, if the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network, when the first signal strength is smaller than the third threshold, it is determined that the first signal strength does not meet the first preset condition, at this time, if it is detected that the second signal strength is smaller than or equal to the first signal strength (i.e., the second signal strength does not meet the second preset condition), it is indicated that the network quality of the second access point is not better than the network quality of the first access point, and if the second frequency band network of the first access point does not have the use condition at this time, the network currently used by the device is maintained unchanged.
Optionally, if the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network, and when the first signal strength is lower than the third threshold, if the second signal strength is detected to be higher than the first signal strength (that is, the second signal strength meets a second preset condition), it is indicated that the network quality of the second access point is better than that of the first access point, at this time, the network used by the device is switched to the network provided by the second access point, so that the device can use the network with better quality provided by the second access point. In the two cases, if the second signal strength is further detected to reach the second threshold, roaming to the second frequency band network provided by the second access point, and if the second signal strength does not reach the second threshold, roaming to the first frequency band network provided by the second access point.
In an embodiment, network switching of dual-frequency and roaming combination is realized, and by dynamically judging and selecting the signal intensity threshold value and the network quality of the equipment, the equipment can automatically select better network connection in networks with different wireless access points and different frequency bands, and the network switching device has the advantages of dual-frequency optimization and roaming function, and ensures the network communication quality and stability of the equipment to the greatest extent. The network switching method of the double-frequency and roaming combination can improve the network performance of equipment and improve the user experience.
In some embodiments, if the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network, the second preset condition may further include that the second signal strength needs to meet the fourth threshold at the same time. And when the first signal strength is smaller than the third threshold value, if the second signal strength is detected to be larger than the first signal strength and the second signal strength is detected to be larger than or equal to the fourth threshold value, roaming the network used by the equipment to the network provided by the second access point.
Wherein the fourth threshold is characterized by a minimum signal strength required when using a 2.4G network of the second access point.
In an embodiment, referring to fig. 3, based on the foregoing embodiment, the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network; after the step of monitoring the first signal strength of the first frequency band network of the first access point used by the device, the method further includes:
Step S70, detecting whether the second signal strength meets a fourth threshold value or not when the first signal strength is detected to be reduced;
step S80, if the fourth threshold is met, roaming the network used by the equipment to the network provided by the second access point;
and step S90, if the fourth threshold is not met, maintaining the network currently used by the equipment unchanged.
In this embodiment, when the signal strength of the first frequency band network of the first access point used by the device is monitored to be decreasing (for example, the device is moving away from the first access point) under the condition that the first frequency band network is lower than the second frequency band network, further determination needs to be made.
Optionally, it is necessary to detect whether the second signal strength meets a fourth threshold. Wherein the fourth threshold is characterized by a minimum signal strength required when using a 2.4G network of the second access point.
Optionally, if the second signal strength is greater than or equal to the fourth threshold, which indicates that the network quality of the network provided by the second access point is better, the network used by the device may be roamed to the network provided by the second access point to continue using the network with better quality. In both cases, if it is further detected that the second signal strength reaches the second threshold (the second threshold is greater than the fourth threshold), roaming to the second frequency band network provided by the second access point, and if the second signal strength does not reach the second threshold, roaming to the first frequency band network provided by the second access point.
Optionally, if the second signal strength is smaller than the fourth threshold, that is, the network quality provided by the second access point cannot meet the requirements and expectations of the device, at this time, the network currently used by the device is maintained unchanged, that is, no network switching is performed (that is, no dual-frequency switching is performed and no roaming is performed), so as to ensure the connection stability and the data transmission reliability of the network communication.
In some alternatives, in order to ensure accuracy of the network quality judgment of the first access point, when the first signal strength is detected to be smaller than the sixth threshold, whether to roam to the second access point is further judged, so as to accurately match the network signal, and ensure that the network connected by the device has stable signal strength and good network quality. Wherein the sixth threshold is characterized by a minimum signal strength required when using the 2.4G network of the first access point.
In an embodiment, on the basis of the foregoing embodiment, the step of detecting whether the second signal strength meets a fourth threshold when the first signal strength is detected to decrease includes:
detecting whether the second signal strength satisfies a fourth threshold when the first signal strength is detected to decrease and when the second signal strength is detected not to decrease.
In this embodiment, when it is monitored that the signal strength of the first frequency band network of the first access point used by the device is decreasing, it is indicated that the device may be away from the first access point (if it is further determined that the first signal strength is smaller than the sixth threshold, it may be confirmed) and it is first determined whether the second signal strength is decreasing during the process of decreasing the first signal strength.
Alternatively, if the second signal strength is detected to be decreasing, indicating that the device is also away from the second access point, it may not be determined whether roaming to the second access point is required.
Optionally, if it is detected that the second signal strength is not reduced (i.e., the second signal strength is unchanged or increased), it is further detected whether the second signal strength meets the fourth threshold. If the fourth threshold is met, roaming the network used by the equipment to the network provided by the second access point; if the fourth threshold is not met, the network currently used by the device is maintained unchanged.
In the process of reducing the first signal intensity, whether the second signal intensity is reduced or not is detected at the same time, so that the signal condition of the equipment can be more comprehensively known, and misjudgment caused by judging only one signal intensity is avoided. And by further detecting whether the second signal strength meets the fourth threshold, it can be determined whether the network quality provided by the second access point is suitable for the device, and roaming to the second access point is performed only when the second signal strength meets the fourth threshold, so as to avoid connection to an unstable or poor quality network.
Therefore, under the condition that the equipment is far away from the first access point and the second signal strength meets the fourth threshold value, network switching can be timely performed, the user is ensured to continue to enjoy high-quality network service, and the use experience is improved. If the second signal strength does not meet the fourth threshold, the device still keeps connected to the current network even if the device is far away from the first access point, frequent switching or connection to a network with poor quality is avoided, and network stability and reliability of data transmission are improved.
In an embodiment, on the basis of the foregoing embodiment, the step of detecting whether the second signal strength satisfies a fourth threshold when the first signal strength is detected to decrease and when the second signal strength is detected to not decrease includes:
when the first signal intensity is detected to be reduced and the second signal intensity is detected to be enhanced within a preset time period, a first change rate of the first signal intensity within the preset time period and a second change rate of the second signal intensity within the preset time period are obtained;
and detecting whether the second signal strength meets a fourth threshold value or not when detecting that the difference value between the first change rate and the second change rate is in a preset numerical value interval.
In this embodiment, the monitoring and sampling of the signal strength change are performed within a preset duration, and the first signal strength is detected to be reduced within the preset duration, and when the second signal strength is enhanced, the first rate of change of the first signal strength within the preset duration and the second rate of change of the second signal strength within the preset duration are calculated respectively.
The first change rate can be obtained by calculating a difference value of the first signal intensity within a preset duration and dividing the difference value by the time interval; the second rate of change may be obtained by calculating the difference in the second signal strength over a predetermined period of time and dividing by the time interval.
Optionally, the preset duration is a time range for calculating a rate of change of signal strength. In general, the preset duration may select an appropriate time window to calculate the signal strength change rate, and this time window may be adjusted according to the actual situation, so as to balance timeliness and accuracy.
Optionally, after calculating the difference between the first rate of change and the second rate of change, further detecting whether the difference is within a preset value interval. Wherein the preset value interval is a range for detecting a difference between the first rate of change and the second rate of change, the function of which is to determine whether the difference between the rates of change is sufficiently significant, and if the difference between the first rate of change and the second rate of change is within the range of the preset value interval, it can be said that the difference between the two rates of change is not significant; in contrast, if the difference between the first rate of change and the second rate of change is outside the range of the preset value interval, the difference between the two rates of change can be considered significant. The specific value of the preset value interval can be set according to specific application scenarios and requirements, which is not limited in this embodiment.
Optionally, if the difference is detected not to be within the preset value interval, determining that the device is not close to the second access point when the device is far from the first access point; if the difference value is detected to be within the preset value interval, the device is judged to be far away from the first access point and is also close to the second access point, namely, the signal strength of the second access point is gradually improved, and is more stable, so that the device is moving towards a direction with better signal quality (the behavior can be intentional or unintentional by a user, but if the user is intentional (namely, the user actively searches for the second access point with good network quality), when the subsequent judgment can roam the network used by the device to the network provided by the second access point and automatically roam, the intellectualization of the device can be improved, and better network automatic roaming experience is brought to the user (without manually switching the access points).
Optionally, if the difference is detected to be within the preset value interval, it is further detected whether the second signal strength meets the fourth threshold. If the fourth threshold is met, the network quality provided by the second access point can be judged to be good, and the network used by the equipment can be roamed to the network provided by the second access point; if the fourth threshold is not met, the network currently used by the equipment is maintained unchanged, so that the connection stability of network communication and the reliability of data transmission are ensured.
In this way, by comparing the change rates of the first and second signal strengths, the change of the device location and the signal condition can be accurately determined, so as to ensure that the device can roam to the second access point with stable network and good quality, otherwise, the network currently used by the device is kept unchanged, that is, the relationship between the device and different access points can be more comprehensively evaluated by considering the change rate of the signal strength, so as to more accurately determine whether to perform network switching.
Compared with the scheme that the network quality of the second access point is judged by directly depending on the positions of the equipment and the second access point or depending on the value of the second signal intensity, the network quality of the second access point can be judged more accurately. This is because: when only the distance between the device and the second access point is considered, other factors (such as obstacles, interference, signal attenuation, etc.) may not be fully considered, which may lead to inaccurate judgment results; while relying on the second signal strength value to determine the network quality may also cause errors, because the signal strength is affected by various factors (including but not limited to distance, interference, physical obstruction, etc.), relying on the signal strength value alone to determine the network quality may cause erroneous determination, such as selecting an access point with a strong signal but poor actual quality.
In an embodiment, based on the foregoing embodiment, the network switching method of the dual-band and roaming combination further includes:
when the network used by the equipment is required to roam to the network provided by the second access points, if a plurality of second access points are detected, acquiring the path hop count and the hanging terminal count corresponding to each second access point;
detecting a second access point meeting a third preset condition, wherein the third preset condition comprises that the second signal strength meets a fifth threshold value, the number of path hops meets a fourth preset condition, and the number of hanging terminals is smaller than a preset number;
and roaming the network used by the equipment to a second access point meeting the third preset condition.
In this embodiment, when a network used by the device needs to be roamed to a network provided by a second access point, if a plurality of second access points meeting roaming handover conditions are detected at the same time, the path hop count (Metrics) and the number of down-hanging terminals corresponding to each second access point are further obtained.
It should be understood that the first, second preset conditions, fourth threshold, etc. may be regarded as roaming handover conditions as long as the conditions relate to a roaming handover condition for determining whether to handover the network used by the device to the second access point, and thus the process of determining whether to need to perform roaming handover on the network used by the device may be referred to the relevant content described in the above embodiment, and will not be repeated here.
The number of path hops refers to the number of intermediate nodes passing from one node to another node in the network, in a wireless network, the nodes may be mobile devices, access points, routers, etc., and the number of path hops may represent the number of routes of data transmitted in the network, and may also represent the stability and reliability of network communication (the smaller the number of hops is, the more stable and reliable); the number of under-hook terminals refers to the number of terminals connected to a node (such as an access point) in a network, in a wireless network, an access point can generally support multiple terminal devices to access simultaneously, and the terminal devices are regarded as the number of under-hook terminals of the access point, so that the stability, speed and other experiences of using the network can be affected by the number of under-hook terminals for users.
Optionally, detecting the second access points meeting the third preset condition according to the second signal intensity, the path hop count and the hanging terminal count corresponding to each second access point.
Optionally, the third preset condition includes that the second signal strength meets a fifth threshold, the path hop count meets a fourth preset condition, and the number of hanging terminals is smaller than a preset number.
Optionally, if the device is currently a 5G network that needs to be roamed to be provided by the second access point, the fifth threshold should be greater than or equal to the second threshold; if the device is currently a 2.4G network that requires a roaming handoff to the second access point, the fifth threshold should be greater than or equal to the fourth threshold. In the case where the fifth threshold is required to be greater than the second threshold (or the fourth threshold), the reason may refer to the case where the third threshold is required to be greater than the first threshold, which will not be described herein.
Optionally, the fourth preset condition may be that, in the second access points that simultaneously meet that the second signal strength reaches the fifth threshold and the number of the hanging terminals is smaller than the preset number, the path hop number is the smallest; or the fourth preset condition may also mean that the number of path hops is smaller than the preset number of hops.
Optionally, the preset hop count may be set according to the topology structure of the network and the characteristics of the device, for example, 3 to 5 hop counts are set; the preset number can be set according to network load and terminal requirements, so as to ensure network connection quality, for example, 3-5.
Optionally, the second access points meeting the third preset condition are screened out by comparing the signal strength, the path hop count and the number of the hanging terminals of each second access point, that is, the second signal strength is met to reach the fifth threshold value, the path hop count meets the fourth preset condition, and the number of the hanging terminals is smaller than the preset number.
Optionally, if it is detected that there are second access points satisfying all third preset conditions, roaming the device to a network provided by the second access point.
In this way, various factors including signal strength, path hop count, number of hanging terminals and the like can be considered, the performances of different second access points are comprehensively evaluated, and the access point with optimal network quality is selected for roaming so as to better adapt to different network environments and equipment requirements and improve the quality and experience of network connection. And according to different preset conditions, the optimal second access point is flexibly selected, and the screening and judgment are rapidly carried out through an algorithm, so that the delay and the blocking in the network switching and roaming processes are reduced. Meanwhile, the method can be properly adjusted and optimized according to different network architectures, and the applicability and reliability of the scheme are improved.
In an embodiment, after the step of detecting the second access point that meets the third preset condition, the method further includes:
if a second access point which does not meet the third preset condition is detected, adjusting the fifth threshold value and/or the preset quantity based on a preset rule so as to update the third preset condition;
And returning to the step of executing the second access point which meets the third preset condition based on the updated third preset condition.
In this embodiment, if no second access point satisfying the third preset condition is found in the detection, that is, no second access point satisfies the second signal strength reaching the fifth threshold, the number of path hops satisfies the fourth preset condition, and the number of hanging terminals is smaller than the preset number, the third preset condition needs to be adjusted based on the preset rule. The preset rules may take into account the following two aspects of adjustment:
optionally, the fifth threshold is adjusted: according to the actual situation and the requirement, the fifth threshold is appropriately lowered so that more access points can meet the signal strength requirement, for example, the original fifth threshold is larger than the second threshold (or the fourth threshold), and then the fifth threshold can be lowered to the second threshold (or the fourth threshold). Thus, the range of the optional access point can be enlarged, and the probability of finding the second access point meeting the condition is improved.
Optionally, adjusting the preset number: according to the current network load and the change of the terminal demand, the preset number of the lower hanging terminals is adjusted, the preset number can be properly widened, more access points can enter the optional range, and if the preset number is adjusted once, the preset number can be added one.
After the fifth threshold and/or the preset number are adjusted, the step of detecting the second access point meeting the third preset condition needs to be performed based on the updated third preset condition, and the optimal access point meeting the new third preset condition is re-detected.
Therefore, the fifth threshold value and the preset number can be adjusted according to actual conditions, and the detection step is re-executed, so that the robustness and the adaptability of the system can be improved, the equipment can be connected to the optimal second access point, and better network experience can be obtained.
Optionally, when the third preset condition includes that the second signal strength meets a fifth threshold, the number of hops of the path meets a fourth preset condition, and the number of the hanging terminals is smaller than the preset number, and the fourth preset condition is that the number of hops of the path is smaller than the preset number of hops (i.e., when the third preset condition relates to three parameters of the fifth threshold, the preset number of hops and the preset number at the same time), if the value setting of each parameter is set independently according to human experience (i.e., the value of the parameter is not related to the value of other different types of parameters), the parameter setting deviation may be caused due to human subjective factors, so that the second access point with optimal network quality cannot be analyzed comprehensively based on the parameters.
To avoid this, in some alternative embodiments, based on the artificial intelligence model, a correspondence between the different combinations of values of the three parameters, the fifth threshold, the preset number of hops, and the preset number, and the network quality of the second access point that can be screened out may be analyzed; and then analyzing the value combination of the second access point which can screen out the network quality optimally on the basis, and correspondingly setting a fifth threshold value, a preset hop count and a specific value of a preset number on the basis of the finally obtained value combination (namely the target value combination).
In the implementation process, an artificial intelligence algorithm, such as a neural network, a support vector machine, a decision tree and the like, can be adopted to construct a network quality prediction model. The method can utilize historical data and real-time data to train a model, analyze the corresponding relation between different parameter value combinations and network quality, so as to predict the network quality and analyze the optimal parameter value combination.
Alternatively, examples of the process of training the artificial intelligence model are as follows:
(1) And (3) data collection: historical data related to network quality corresponding to different access points in a past period of time is collected, wherein the historical data comprises signal strength, path hop count, number of down-hanging terminals and index data (such as delay, bandwidth, packet loss rate, jitter, throughput and the like) related to network connection quality, and the data can be used for analyzing the corresponding relation between different parameter value combinations and the network quality and providing basis for model training.
(2) Characteristic engineering: the collected data is subjected to feature extraction and processing, such as converting signal strength into a digital form, calculating statistical indexes of the number of path hops and the number of hanging terminals, and the like.
(3) Data set partitioning: the collected data is divided into a training set and a validation set. The training set is used to construct an artificial intelligence model and the validation set is used to evaluate the performance of the model.
(4) Model construction: an appropriate artificial intelligence algorithm is selected and a machine learning model is constructed from the data of the training set. This may try different algorithms and model structures to compare their performance and accuracy.
(5) Model training and optimization: the training set is used for training the model, and optimization is carried out through methods such as cross validation and the like, so that the prediction accuracy of the model on the validation set is improved.
(6) Parameter analysis and optimization: based on the trained model, the corresponding relation between different value combinations of the fifth threshold, the preset hop count and the preset number and the network quality of the selected second access point is analyzed. And determining a value combination of the second access point which can screen out the network quality optimally.
(7) Parameter setting: and based on the analysis result, mapping the optimal parameter value combination to a specific value of a fifth threshold value, a preset hop count and a preset number. The three parameters are adjusted according to the actual situation, so that the purpose of screening out the second access point with the optimal network quality is achieved.
(8) And (3) real-time adjustment: in the implementation process, the real-time data is continuously monitored, and the fifth threshold value, the preset hop count and the preset number are dynamically adjusted according to the real-time data so as to adapt to the change of the network environment. The real-time data refers to the latest data collected in real time, usually, the data collected at the current moment, and the real-time data can be used for updating a model, performing real-time prediction and real-time monitoring.
Therefore, the values of the fifth threshold, the preset hop count and the preset number can be analyzed and optimized based on the artificial intelligent model, and therefore the second access point with the optimal network quality can be screened to the greatest extent. Meanwhile, the real-time property and adaptability of the scheme can be enhanced by monitoring and dynamically adjusting the real-time data, and the stability and reliability of network connection are improved.
In addition, the embodiment of the application also provides an electronic device, and the internal structure of the electronic device can be shown in fig. 4. The electronic device includes a processor, a memory, a communication interface, and a database connected by a system bus. Wherein the processor is configured to provide computing and control capabilities. The memory of the electronic device includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the electronic device is used for storing data called by the computer program. The communication interface of the electronic device is used for carrying out data communication with an external terminal. The input device of the electronic device is used for receiving signals input by external equipment. The computer program, when executed by a processor, implements a network switching method for dual frequency and roaming combinations as described in the above embodiments.
Those skilled in the art will appreciate that the structure shown in fig. 4 is merely a block diagram of a portion of the structure associated with the present application and is not intended to limit the electronic device to which the present application is applied.
Furthermore, the present application also proposes a computer readable storage medium comprising a computer program which, when executed by a processor, implements the steps of the network handover method of dual frequency and roaming combination as described in the above embodiments. It is understood that the computer readable storage medium in this embodiment may be a volatile readable storage medium or a nonvolatile readable storage medium.
In summary, in the network switching method, the electronic device and the computer readable storage medium for the dual-band and roaming combination provided in the embodiments of the present application, the network switching for the dual-band and roaming combination is realized, and by dynamically determining and selecting the signal strength threshold and the network quality of the device, the device can automatically select a better network connection in networks with different wireless access points and different frequency bands, which has the advantages of dual-band preference and roaming function, and ensures the network communication quality and stability of the device to the greatest extent. The network switching method of the double-frequency and roaming combination can improve the network performance of equipment and improve the user experience.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium provided herein and used in embodiments may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual speed data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, apparatus, article or method that comprises the element.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims (10)

1. The network switching method of the double-frequency and roaming combination is characterized by comprising the following steps of:
monitoring first signal intensity of a first frequency band network of a first access point used by equipment;
when the first signal strength meets a first preset condition, detecting whether a second signal strength of a network provided by a second access point meets a second preset condition;
If not, switching the network used by the equipment to a second frequency band network of the first access point;
if yes, roaming the network used by the equipment to the network provided by the second access point.
2. The network switching method of the dual-band roaming combination of claim 1, wherein the first preset condition includes that the first signal strength is smaller than a first threshold value, and the second preset condition includes that the second signal strength satisfies a second threshold value, if the frequency band corresponding to the first frequency band network is higher than the frequency band corresponding to the second frequency band network;
or, if the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network, the first preset condition includes that the first signal strength meets a third threshold, and the second preset condition includes that the second signal strength is greater than the first signal strength.
3. The method for network switching of dual-band and roaming combination of claim 2, further comprising, after the step of monitoring the first signal strength of the first frequency band network of the first access point used by the device:
when the first signal strength does not meet the first preset condition and the second signal strength does not meet the second preset condition, maintaining the network currently used by the equipment unchanged;
And when the first signal strength does not meet the first preset condition and the second signal strength meets the second preset condition, roaming the network used by the equipment to the network provided by the second access point.
4. The network switching method of the dual-band roaming combination of claim 2, wherein the frequency band corresponding to the first frequency band network is lower than the frequency band corresponding to the second frequency band network; after the step of monitoring the first signal strength of the first frequency band network of the first access point used by the device, the method further includes:
detecting whether the second signal strength meets a fourth threshold value when the first signal strength is detected to be reduced;
if the fourth threshold is met, roaming the network used by the device to the network provided by the second access point;
if the fourth threshold is not met, the network currently used by the device is maintained unchanged.
5. The method of network switching for dual-band and roaming combining of claim 4, wherein detecting whether the second signal strength satisfies a fourth threshold when the first signal strength is detected to be reduced comprises:
detecting whether the second signal strength satisfies a fourth threshold when the first signal strength is detected to decrease and when the second signal strength is detected not to decrease.
6. The method of network switching for dual-band and roaming combining of claim 5, wherein detecting whether the second signal strength satisfies a fourth threshold when the first signal strength is detected to decrease and when the second signal strength is detected to not decrease comprises:
when the first signal intensity is detected to be reduced and the second signal intensity is detected to be enhanced within a preset time period, a first change rate of the first signal intensity within the preset time period and a second change rate of the second signal intensity within the preset time period are obtained;
and detecting whether the second signal strength meets a fourth threshold value or not when detecting that the difference value between the first change rate and the second change rate is in a preset numerical value interval.
7. The network switching method of a dual-band and roaming combination according to any one of claims 1-6, wherein the network switching method of a dual-band and roaming combination further comprises:
when the network used by the equipment is required to roam to the network provided by the second access points, if a plurality of second access points are detected, acquiring the path hop count and the hanging terminal count corresponding to each second access point;
detecting a second access point meeting a third preset condition, wherein the third preset condition comprises that the second signal strength meets a fifth threshold value, the number of path hops meets a fourth preset condition, and the number of hanging terminals is smaller than a preset number;
And roaming the network used by the equipment to a second access point meeting the third preset condition.
8. The method for network switching of dual-band and roaming combination of claim 7, further comprising, after the step of detecting the second access point satisfying the third preset condition:
if a second access point which does not meet the third preset condition is detected, adjusting the fifth threshold value and/or the preset quantity based on a preset rule so as to update the third preset condition;
and returning to the step of executing the second access point which meets the third preset condition based on the updated third preset condition.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the network handover method of a combination of dual frequency and roaming as claimed in any one of claims 1 to 8.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the network handover method of a dual frequency and roaming combination according to any of the claims 1 to 8.
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