CN115988476A - Adaptive roaming method, terminal, and computer-readable medium - Google Patents

Abstract

The present invention provides an adaptive roaming method, a terminal and a computer-readable medium, wherein the adaptive roaming method is implemented by the terminal, including: the terminal perceives its own roaming parameter-related state; and the terminal adjusts the roaming parameter according to the roaming parameter-related state.

Description

Adaptive roaming method, terminal and computer readable medium

technical field

The present invention mainly relates to the field of wireless communication, in particular to an adaptive roaming method, a terminal and a computer-readable medium.

Background technique

In the current roaming method, when the terminal is moving rapidly, the roaming switch is not timely due to improper roaming sensitivity setting, which eventually leads to disconnection of the network connection, which greatly affects the user experience; or when the terminal is between two access points (Access Point, AP) coverage overlapping area and in a static state, the signal strengths of the two APs received by the terminal are similar. Due to the fluctuation of the wireless signal, the terminal will frequently switch between the two APs, that is, ping-pong switching, which not only affects User experience, and will increase the burden on the network.

In the existing solution, the terminal needs to send the signal strength of the surrounding APs to the AP through the 802.11 protocol message, and the access controller (Access Controller, AC) obtains these signal strengths reported by the terminal from the AP, and finally the AC judges the signal strength based on the signal strength. Whether the terminal is in the overlapping area of the AP. This will bring several disadvantages: the terminal frequently sends 802.11 packets to the AP, which will bring a burden to the network and reduce the throughput of the network; the terminal does not know that the AP in the overlapping area will refuse to connect, so the terminal will continue to try to connect APs in overlapping areas will further bring a burden to the network, and even affect the network connection performance between the terminal and the current AP; existing solutions rely heavily on the decision of the AC, and the terminal cannot make decisions independently.

Contents of the invention

The technical problem to be solved by the present invention is to provide an adaptive roaming method independent of AC/AP, a terminal and a computer-readable medium.

In order to solve the above technical problems, the present invention provides an adaptive roaming method, the adaptive roaming method is implemented by a terminal, including: the terminal perceives its own roaming parameter-related state; Adjust the roaming parameters.

In an embodiment of the present invention, before the terminal perceives the roaming parameter-related state, it further includes: judging whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the first threshold, when the When the difference is smaller than the first threshold, the terminal perceives a roaming parameter-related state, and adjusts roaming parameters according to the roaming parameter-related state.

In an embodiment of the present invention, the roaming parameters include roaming sensitivity and roaming threshold.

In an embodiment of the present invention, the roaming parameter related state includes the movement state, service type and scene of the terminal.

In an embodiment of the present invention, the step of adjusting the roaming sensitivity according to the related state of the roaming parameter includes: when the motion state is static, the terminal adjusts the roaming sensitivity to the first sensitivity; when the motion state When moving, the terminal adjusts the roaming sensitivity to a second sensitivity; wherein, the first sensitivity is greater than the second sensitivity.

In an embodiment of the present invention, when the motion state is moving, the step of the terminal adjusting the roaming sensitivity to the second sensitivity includes: according to the moving speed of the terminal, at multiples of the second sensitivity Determine the corresponding sub-sensitivities in sub-sensitivities.

In an embodiment of the present invention, the step of adjusting the roaming sensitivity according to the related status of the roaming parameters includes: judging whether the current service of the terminal is a no-data service; when the current service is a no-data service, the terminal Adjusting the roaming sensitivity to a third sensitivity; when the current service is not a data-free service, the terminal adjusts the roaming sensitivity to a fourth sensitivity; wherein the third sensitivity is greater than the fourth sensitivity.

In an embodiment of the present invention, the step of adjusting the roaming sensitivity according to the related status of the roaming parameters further includes: when the current service is not a data-free service, combining the current service with a plurality of data with different delay sensitivities Service matching, determining a corresponding sub-sensitivity among multiple sub-sensitivities of the fourth sensitivity according to a matching result.

In an embodiment of the present invention, the step of adjusting the roaming sensitivity according to the related state of the roaming parameter includes: when the motion state is stationary and the terminal is not in an overlapping area of access points, the terminal adjusts the roaming sensitivity. The sensitivity is the first sensitivity; when the motion state is stationary and the terminal is in an overlapping area of access points, the terminal adjusts the roaming sensitivity to the fifth sensitivity; wherein the fifth sensitivity is greater than the first sensitivity.

In an embodiment of the present invention, the step of adjusting the roaming threshold according to the related state of the roaming parameter includes: when the motion state is stationary, the terminal adjusts the roaming sensitivity to the first threshold; when the motion state is moving, the terminal adjusts the roaming sensitivity to the second threshold Two thresholds; wherein, the first threshold is smaller than the second threshold.

In an embodiment of the present invention, when the motion state is moving, the step of the terminal adjusting the roaming threshold to the second threshold includes: determining a corresponding sub-threshold among multiple sub-thresholds of the second threshold according to the moving speed of the terminal.

In an embodiment of the present invention, the step of adjusting the roaming threshold according to the state of the roaming parameter includes: judging whether the current service of the terminal is a no-data service; when the current service is a no-data service, the terminal adjusts the roaming threshold to the third threshold; When the current service is not a data-free service, the terminal adjusts the roaming threshold to a fourth threshold; wherein, the third threshold is smaller than the fourth threshold.

In an embodiment of the present invention, the step of adjusting the roaming threshold according to the related status of the roaming parameters further includes: when the current service is not a data-free service, matching the current service with a plurality of data services with different delay sensitivities, and according to the matching result A corresponding sub-threshold is determined among the plurality of sub-thresholds of the fourth threshold.

In an embodiment of the present invention, the step of adjusting the roaming threshold according to the roaming parameter-related state includes: when the motion state is static and the terminal is not in the overlapping area of the access point, the terminal adjusts the roaming threshold to the first threshold; when the motion state is When the terminal is stationary and the terminal is in the overlapping area of the access points, the terminal adjusts the roaming threshold to the fifth threshold; where the fifth threshold is smaller than the first threshold.

The present invention also provides a terminal, including: a memory, configured to store instructions executable by a processor; and a processor, configured to execute the instructions to implement the method in any preceding embodiment.

The present invention also provides a computer-readable medium storing computer program code, the computer program code implements the method in any one of the preceding embodiments when executed by a processor.

Compared with the prior art, the self-adaptive roaming method provided by the present invention completely makes the decision to adjust the roaming sensitivity by the terminal itself by judging its own motion status and service type, and does not depend on AC/AP, which reduces network traffic. burden.

Description of drawings

The accompanying drawings are included to provide a further understanding of the present application, and they are included and constitute a part of the present application. The accompanying drawings show the embodiments of the present application, and together with the description, serve to explain the principle of the present invention. In the attached picture:

Fig. 1 is a flow chart of an adaptive method according to an embodiment of the present application.

Fig. 2 is a flowchart of an adaptive method according to another embodiment of the present application.

FIG. 3 is a flowchart of an adaptive method for adjusting roaming sensitivity according to a terminal motion state according to an embodiment of the present application.

FIG. 4 is a flow chart of an adaptive method for adjusting roaming sensitivity according to a terminal motion state according to another embodiment of the present application.

Fig. 5 is a flow chart of an adaptive method for adjusting roaming sensitivity according to a service type of a terminal according to an embodiment of the present application.

Fig. 6 is a flow chart of an adaptive method for adjusting roaming sensitivity according to a scene where a terminal is located according to an embodiment of the present application.

FIG. 7 is a flow chart of an adaptive method for adjusting a roaming threshold according to a terminal motion state according to an embodiment of the present application.

FIG. 8 is a flow chart of an adaptive method for adjusting a roaming threshold according to a terminal motion state according to another embodiment of the present application.

FIG. 9 is a flow chart of an adaptive method for adjusting a roaming threshold according to a service type of a terminal according to an embodiment of the present application.

FIG. 10 is a flow chart of an adaptive method for adjusting a roaming threshold according to a scenario where a terminal is located according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a terminal according to an embodiment of the present application.

Detailed ways

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

As indicated in this application and claims, the terms "a", "an", "an" and/or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also contain other steps or elements.

The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification. In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present application, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the device or element referred to It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the protection scope of the present application; the orientation words "inner and outer" refer to the inner and outer relative to the outline of each component itself.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations". Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. To limit the protection scope of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant according to his or her judgment, and their detailed meanings are listed in this article described in the relevant section of the description. Furthermore, it is required that this application be understood not only by the actual terms used, but also by the meaning implied by each term.

It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on the other element. On, connected or coupled to, or in contact with, the other component, or there may be an intervening component. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Likewise, when a first component is referred to as being "electrically contacting" or "electrically coupled to" a second component, there exists an electrical path between the first component and the second component that allows electrical current to flow. This electrical path may include capacitors, coupled inductors, and/or other components that allow current to flow, even without direct contact between conductive components.

The flow chart is used in this application to illustrate the operations performed by the system according to the embodiment of this application. It should be understood that the preceding or following operations are not necessarily performed in an exact order. Instead, various steps may be processed in reverse order or concurrently. At the same time, other operations are either added to these procedures, or a certain step or steps are removed from these procedures.

An adaptive roaming method provided in the present application is applicable to decision-making of roaming switching between different APs when the terminal user moves between service areas of different access points (AccessPoint, AP). Specifically, in some embodiments of the present invention, the terminal includes a mobile device such as a mobile phone, a tablet, and a vehicle system, and the AP includes a device suitable for providing wireless network services such as a Wi-Fi device.

Fig. 1 is a flow chart of an adaptive method according to an embodiment of the present application. Referring to Figure 1, a method for adaptive roaming provided by the present application includes the following steps:

S10: The terminal perceives its own roaming parameter-related status;

S11: The terminal adjusts the roaming parameter according to the state related to the roaming parameter.

In an embodiment of the present application, the status related to the roaming parameters includes, but is not limited to, the motion status, service type and scene of the terminal. It is understandable that the state of motion (stationary or not, moving speed), the sensitivity of different service types to delay, and the scene will all affect the roaming requirements of the terminal in the current state, that is, whether to perform AP switching, or the preference of AP switching .

Specifically, when the terminal is in a static state, the signal strength of the AP it is connected to is generally relatively stable, and frequent switching is not required, so the roaming sensitivity can be set to a larger value, and/or the roaming threshold can be set to a smaller value . When the terminal is in the mobile state, its position relative to the currently connected AP is constantly changing, and the signal strength will also change accordingly, and the demand for selection between different APs will increase accordingly. Therefore, the roaming sensitivity can be set to to a lower value, and/or set the roaming threshold to a higher value.

Figure 2 shows a preferred embodiment of the present application, with reference to Figure 2, the adaptive roaming method in this embodiment includes the following steps:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S21: The terminal perceives its own motion state, service type and scene;

S22: The terminal adjusts the roaming parameters according to the perceived motion state, service type and scene;

S23: The terminal sets the adjustment duration;

S24: Determine whether the adjustment duration is over, if not, wait, and if it is over, return to step S20.

It can be understood that, in step S20, in order to avoid the unnecessary power consumption of the terminal due to frequent perception of its own motion state, service type and scene, the terminal first checks the signal strength of the first access point received by itself A comparison is made with the roaming threshold, wherein the first receiving point is the AP to which the terminal is currently connected, and the signal strength of the first access point is greater than the roaming threshold. Affected by a state related to the roaming parameters of the terminal, the signal strength of the first access point may change. For example, as the location of the terminal changes, the distance between the terminal and the currently connected AP gradually increases, and the signal strength decreases. When the difference between the signal strength of the current AP connected to the terminal (that is, the signal strength of the first access point received by the terminal) and the roaming threshold decreases to less than the judgment threshold, the terminal re-judges whether to change the connected AP, and at the same time Parameters are adjusted. Specifically, in step S20, when the terminal judges that the difference between the received signal strength of the first access point and the roaming threshold is smaller than the judging threshold, step S21 is executed.

Further, in steps S23 and S24, the terminal sets the adjustment duration as the buffer time, and when the terminal determines that the adjustment duration is over, step S20 is re-executed.

FIG. 3 is a flowchart of an adaptive method for adjusting roaming sensitivity according to a terminal motion state according to an embodiment of the present application. Referring to Figure 3, when the terminal perceives its own roaming parameter-related state as a motion state, the adaptive roaming method for adjusting roaming sensitivity includes the following steps:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S30: The terminal judges whether its own motion state is stationary, and when the motion state is stationary, execute step S31, and when the motion state is non-stationary, execute step S32;

S31: The terminal adjusts the roaming sensitivity to the first sensitivity S ₁ , and executes step S23;

S32: The terminal adjusts the roaming sensitivity to the second sensitivity S ₂ , and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

Specifically, in step S30, when the motion state of the terminal is stationary, it means that the current terminal has not changed its location, and the need to switch APs is not strong. Conversely, when the terminal is in a moving state, it means that the current location of the terminal is changing, and the signal strength of the first access point to which it is connected is more likely to change, that is, it is more likely to need to perform AP switching. It can be understood that, when the perceived motion state is stationary, the terminal executes step S31 to adjust the roaming sensitivity to the first sensitivity S ₁ , and when the perceived motion state is non-stationary, the terminal executes step 32 to adjust the roaming sensitivity to the first sensitivity S 1 . Adjust to the second sensitivity S ₂ , where S ₁ >S ₂ .

Specifically, roaming sensitivity refers to the adjustment rate of the terminal switching access point speed in different states to adapt to the best signal connection quality, that is, the greater the roaming sensitivity value, the lower the adjustment rate, that is, the terminal is between multiple APs. The switching frequency between them is reduced, and the sensitivity is reduced. In this embodiment, the static state means that the terminal is currently in a relatively stable signal strength, and there is no need to frequently switch connection points at this time, so the first roaming sensitivity S ₁ is set to be relatively large. Correspondingly, when the terminal perceives that it is in a moving state, its location is changing, and the demand for switching access points increases, so it is set to a smaller second roaming sensitivity S ₂ .

FIG. 4 is a flow chart of an adaptive method for adjusting roaming sensitivity according to a terminal motion state according to another embodiment of the present application. Further referring to FIG. 4 , in this embodiment, the terminal further judges the moving speed of its own motion state when it is not stationary, and further refines and adjusts the roaming sensitivity according to the different moving speeds to further enhance the stability of the signal. Specifically, the adaptive roaming method in this embodiment includes the following steps:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S30: The terminal judges whether its own motion state is stationary, if yes, execute step S31, otherwise execute step S33;

S31: The terminal adjusts the roaming sensitivity to the first sensitivity, and executes step S23;

S33: The terminal judges whether it is moving at a low speed, if yes, execute step S34, otherwise execute step S35;

S34: The terminal adjusts the roaming sensitivity to the first sub-sensitivity S ₂₁ , and executes step S23;

S35: The terminal judges whether it is moving at a medium speed, and if so, executes step S36; otherwise, judges that the terminal itself is moving at a high speed, and executes step S37;

S36: The terminal adjusts the roaming sensitivity to the second sub-sensitivity S ₂₂ , and executes step S23;

S37: The terminal adjusts the roaming sensitivity to the third sub-sensitivity S ₂₃ , and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

It can be understood that, compared with the previous embodiment, when the adaptive roaming method provided in this embodiment judges that the motion state of the terminal is moving, the step of the terminal adjusting the roaming sensitivity to the second sensitivity further includes: For moving speed, determine the corresponding sub-sensitivities among the multiple sub-sensitivities of the second sensitivity. In this embodiment, the second sensitivity includes three sub-sensitivities S ₂₁ , S ₂₂ , and S ₂₃ , which respectively correspond to the movement states of the terminal as low-speed movement, medium-speed movement, and high-speed movement. Here, the speed ranges of low-speed movement, medium-speed movement and high-speed movement can be set according to actual needs. Specifically, when the terminal is in a moving state, its location is changing, and the signal strength of the connected first access point is more likely to change, that is, it is more likely to need to perform AP switching. As the mobile speed of the terminal increases, its location changes more violently, and the possibility of signal strength changes is greater. At this time, it is necessary to further reduce the signal sensitivity so that the terminal can complete the AP switching in time. It can be understood that, in this embodiment, S ₂₁ >S ₂₂ >S ₂₃ .

In conjunction with Table 1 as shown below, the present embodiment is further described:

exercise state roaming sensitivity Value range(dB) Default value (dB) still <![CDATA[S₁]]> 9-11 10 slow movement <![CDATA[S₂₁]]> 6-8 7 Medium speed movement <![CDATA[S₂₂]]> 3-5 4 high speed movement <![CDATA[S₂₃]]> 0-2 1

When the terminal judges that the difference between the signal strength of the first access point received by itself and the roaming threshold is less than the judgment threshold, it further perceives its own motion state and makes corresponding adjustments to the roaming sensitivity: when the motion state is stationary, adjust the roaming sensitivity to S ₁ , 9dB<S ₁ <11dB; when the movement state is low-speed movement, adjust the roaming sensitivity to S ₂₁ , 6dB<S ₂₁ <8dB; when the movement state is medium-speed movement, adjust the roaming sensitivity to S ₂₂ , 3dB<S ₂₂ <5dB; when the motion state is high-speed movement, adjust the roaming sensitivity to S ₂₃ , 0<S ₂₃ <2dB.

It can be understood that, in some other embodiments of the present application, the second sensitivity may be divided into fewer or more sub-sensitivities to meet different requirements, and the present application does not make specific limitations here.

Fig. 5 is a flow chart of an adaptive method for adjusting roaming sensitivity according to a service type of a terminal according to an embodiment of the present application. Referring to FIG. 5, a preferred embodiment of the present application is shown. When the terminal perceives its own roaming parameter-related state as a service type, the adaptive roaming method includes the following steps:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S40: Determine whether the terminal currently transmits and receives data, if yes, execute step S42, otherwise execute step S41;

S41: The terminal adjusts the roaming sensitivity to the third sensitivity, and executes step S23;

S42: Determine whether the current service of the terminal is sensitive to delay, if yes, execute step S44, otherwise execute step S43;

S43: The terminal adjusts the roaming sensitivity to the fourth sub-sensitivity, and executes step S23;

S44: Determine whether the current service of the terminal is real-time voice, if yes, execute step S45, otherwise execute step S46;

S45: The terminal adjusts the roaming sensitivity to the fifth sub-sensitivity, and executes step S23;

S46: The terminal adjusts the roaming sensitivity to the sixth sub-sensitivity, and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

Specifically, in step S40, when the terminal does not send or receive data, it means that the current service type of the terminal is no data service, and the need to switch APs is not strong. Conversely, when the terminal is transmitting and receiving data, it means that the service type of the current terminal is not a data-free service, and it has higher requirements on the signal strength of the connected first access point, and it is more likely to need to perform AP switching. It can be understood that when the perceived service type is no data service, the terminal executes step S41 to adjust the roaming sensitivity to the third sensitivity S ₃ , and when the perceived service type is not no data service, the terminal adjusts the roaming sensitivity is the fourth sensitivity S ₄ (not shown in the figure), where S ₃ >S ₄ .

As shown in FIG. 5 , which is a preferred embodiment of the present application, the fourth sensitivity S ₄ includes a fourth sub-sensitivity S ₄₁ , a fifth sub-sensitivity S ₄₂ and a sixth sub-sensitivity S ₄₃ . Further, after judging that the current service type of the terminal has data sending and receiving, the terminal further judges whether the current service type is sensitive to delay, that is, executes step S42. When the service is not sensitive to delay, the terminal adjusts the roaming sensitivity to the fourth sub-sensitivity S ₄₁ , and if the service is sensitive to delay, further judges whether it is real-time voice. If the current service type is real-time voice, then adjust the roaming sensitivity to the fifth sub-sensitivity _S42 ; if the current service type is not real-time voice, but a type more sensitive to delay such as real-time video or online games, then adjust the roaming sensitivity to the fifth sub-sensitivity Six sub-sensitivity S ₄₃ . It can be understood that S ₃ >S ₄₁ >S ₄₂ >S ₄₃ .

In conjunction with Table 2 as shown below, the present embodiment is further described:

business type roaming sensitivity Value range(dB) Default value (dB) no data service <![CDATA[S₃]]> 7-9 8 Latency insensitive business <![CDATA[S₄₁]]> 5-7 6 real time voice <![CDATA[S₄₂]]> 3-5 4 Live Video/Online Gaming <![CDATA[S₄₃]]> 1-3 2

When the terminal judges that the difference between the signal strength of the first access point received by itself and the roaming threshold is less than the judgment threshold, it further perceives its own service type and makes corresponding adjustments to roaming sensitivity: adjust roaming when the service type is no data service The sensitivity is S ₃ , 7dB<S ₃ <9dB; when the service type is delay-insensitive service, adjust the roaming sensitivity to S ₄₁ , 5dB<S ₄₁ <7dB; when the service type is real-time voice, adjust the roaming sensitivity to S ₄₂ , 3dB<S ₄₂ <5dB; when the service type is real-time video/online game, adjust roaming sensitivity to S ₄₃ , 1<S ₄₃ <3dB.

It can be understood that, in some other embodiments of the present application, the fourth sensitivity may be divided into fewer or more sub-sensitivities to meet different requirements, and the present application does not make specific limitations here.

Fig. 6 is a flow chart of an adaptive method according to a scene where a terminal is located according to an embodiment of the present application. In this embodiment, when the terminal judges that its own motion state is stationary, it further judges the current area. Specific steps are as follows:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S30: The terminal judges whether its own motion state is stationary, if yes, execute step S50, otherwise execute step S33;

S50: The terminal judges whether it is in the access point overlapping area, if yes, execute step S31, otherwise execute step S51;

S31: The terminal adjusts the roaming sensitivity to the fifth sensitivity, and executes step S23;

S51: The terminal adjusts the roaming sensitivity to the first sensitivity, and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

Specifically, when the terminal is located in the overlapping area of the access point, it may receive two or more AP signals with similar signal strengths. switch. In the adaptive roaming method provided in this embodiment, after the terminal judges that its motion state is stationary, it further judges the signal environment where it is located to adjust the roaming sensitivity, that is, steps S50-S51.

It can be understood that when the terminal is stationary and in an overlapping area of access points, in order to avoid signal instability caused by repeated switching between overlapping APs by the terminal, in this embodiment the terminal will adjust its own roaming sensitivity so that AP switching is possible The sensitivity is smaller, that is, the fifth sensitivity S ₅ >the first sensitivity S ₁ .

FIG. 7 is a flow chart of an adaptive method for adjusting a roaming threshold according to a terminal motion state according to an embodiment of the present application. Referring to FIG. 7, when the terminal perceives its own roaming sensitivity parameter-related state as a motion state, the adaptive roaming method for adjusting the roaming threshold includes the following steps:

S30: The terminal judges whether its own motion state is stationary, and when the motion state is stationary, execute step S31', and when the motion state is non-stationary, execute step S32';

S31': The terminal adjusts the roaming threshold to the first threshold T ₁ , and executes step S23;

S32': The terminal adjusts the roaming threshold to the second threshold T ₂ , and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

Similarly, in step S30, when the motion state of the terminal is stationary, it means that the current terminal has not changed its location, and the need to switch APs is not strong. Conversely, when the terminal is in a moving state, it means that the current location of the terminal is changing, and the signal strength of the first access point to which it is connected is more likely to change, that is, it is more likely to need to perform AP switching. It can be understood that, when the perceived motion state is stationary, the terminal executes step S31' to adjust the roaming threshold to the first threshold T ₁ , and when the perceived motion state is non-stationary, the terminal executes step 32' to set The roaming threshold is adjusted to a second threshold T ₂ , where T ₁ <T ₂ .

Specifically, as shown in Figures 2 and 7, in step S20, it is first judged "whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is less than the judgment threshold", and then it is decided whether to perceive the terminal's own It is understandable that the larger the roaming threshold is, the smaller the difference between the signal strength of the first access point received by the terminal and the roaming threshold is under the same conditions, and the judgment result of step S20 is affirmative The greater the probability is, the greater the probability that the terminal switches the access point under the same roaming sensitivity. That is, the effect of increasing the roaming threshold is similar to that achieved by reducing the roaming sensitivity.

In this embodiment (as shown in FIG. 7 ), the static state means that the terminal is currently in a relatively stable signal strength, and there is no need to frequently switch connection points at this time, so the first roaming threshold T ₁ is set to be small. Correspondingly, when the terminal perceives that it is in a moving state, its location is changing, and the demand for switching access points increases, so it is set to a larger second roaming threshold T ₂ .

FIG. 8 is a flow chart of an adaptive method for adjusting a roaming threshold according to a terminal motion state according to another embodiment of the present application. Further referring to FIG. 8 , in this embodiment, the terminal further judges the moving speed of its own motion state when it is not stationary, and further refines and adjusts the roaming sensitivity according to the different moving speeds, so as to further enhance the stability of the signal. Specifically, the adaptive roaming method in this embodiment includes the following steps:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S30: The terminal judges whether its own motion state is stationary, if yes, execute step S31', otherwise execute step S33;

S31': The terminal adjusts the roaming threshold to the first threshold, and executes step S23;

S33: The terminal judges whether it is moving at a low speed, if so, execute step S34', otherwise execute step S35;

S34': The terminal adjusts the roaming threshold to the first sub-threshold T ₂₁ , and executes step S23;

S35: The terminal judges whether it is moving at a medium speed, and if so, executes step S36'; otherwise, judges that the terminal itself is moving at a high speed, and executes step S37';

S36': The terminal adjusts the roaming threshold to the second sub-threshold T ₂₂ , and executes step S23;

S37': The terminal adjusts the roaming threshold to the third sub-threshold T ₂₃ , and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

It can be understood that, compared with the previous embodiment, in the adaptive roaming method provided by this embodiment, when judging that the motion state of the terminal is moving, the step of the terminal adjusting the roaming threshold to the second threshold further includes: For the moving speed, a corresponding sub-threshold is determined among the plurality of sub-thresholds of the second threshold. In this embodiment, the second threshold includes three sub-thresholds T ₂₁ , T ₂₂ , and T ₂₃ , which respectively correspond to the low-speed movement, medium-speed movement, and high-speed movement of the terminal. Here, the speed ranges of low-speed movement, medium-speed movement and high-speed movement can be set according to actual needs. Specifically, when the terminal is in a moving state, its location is changing, and the signal strength of the connected first access point is more likely to change, that is, it is more likely to need to perform AP switching. As the mobile speed of the terminal increases, its location changes more violently, and the possibility of signal strength changes is greater. At this time, the signal threshold needs to be further increased so that the terminal can complete the AP switch in time. It can be understood that, in this embodiment, T ₂₁ <T ₂₂ <T ₂₃ .

FIG. 9 is a flow chart of an adaptive method for adjusting a roaming threshold according to a service type of a terminal according to an embodiment of the present application. Referring to FIG. 9, a preferred embodiment of the present application is shown. When the terminal perceives its own roaming parameter-related state as a service type, the adaptive roaming method for adjusting the roaming threshold includes the following steps:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S40: Determine whether the terminal currently has data to send and receive, if yes, execute step S42, otherwise execute step S41';

S41': The terminal adjusts the roaming threshold to the third threshold, and executes step S23;

S42: Determine whether the current service of the terminal is sensitive to delay, if yes, execute step S44, otherwise execute step S43';

S43': The terminal adjusts the roaming threshold to the fourth sub-threshold, and executes step S23;

S44: Determine whether the current service of the terminal is real-time voice, if yes, execute step S45', otherwise execute step S46';

S45': The terminal adjusts the roaming threshold to the fifth sub-threshold, and executes step S23;

S46': The terminal adjusts the roaming threshold to the sixth sub-threshold, and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

Specifically, in step S40, when the terminal does not send or receive data, it means that the current service type of the terminal is no data service, and the need to switch APs is not strong. Conversely, when the terminal is transmitting and receiving data, it means that the service type of the current terminal is not a data-free service, and it has higher requirements on the signal strength of the connected first access point, and it is more likely to need to perform AP switching. It can be understood that, when the perceived service type is no-data service, the terminal executes step S41' to adjust the roaming threshold to the third threshold T ₃ , and when the perceived service type is not no-data service, the terminal adjusts the roaming threshold to Adjust to the fourth threshold T ₄ (not shown in the figure), where T ₃ >T ₄ .

As shown in FIG. 9 , which is a preferred embodiment of the present application, the fourth threshold S4 includes a fourth sub-threshold T ₄₁ , a fifth sub-threshold T ₄₂ and a sixth sub-threshold T ₄₃ . Further, after judging that the current service type of the terminal has data sending and receiving, the terminal further judges whether the current service type is sensitive to delay, that is, executes step S42. When the service is not sensitive to delay, the terminal adjusts the roaming threshold to the fourth sub-threshold T ₄₁ , and if the service is sensitive to delay, further judges whether it is real-time voice. If the current service type is real-time voice, adjust the roaming threshold to the fifth sub-threshold T ₄₂ ; if the current service type is not real-time voice, but is more sensitive to delay, such as real-time video or online games, then adjust the roaming threshold to the fifth sub-threshold T 42 . Six sub-thresholds T ₄₃ . It can be understood that T ₃ <T ₄₁ <T ₄₂ <T ₄₃ .

FIG. 10 is a flow chart of an adaptive method for adjusting a roaming threshold according to a scenario where a terminal is located according to an embodiment of the present application. In this embodiment, when the terminal judges that its own motion state is stationary, it further judges the current area. Specific steps are as follows:

S20: Determine whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the determination threshold;

S30: The terminal judges whether its own motion state is stationary, if yes, execute step S50, otherwise execute step S33;

S50: The terminal judges whether it is in the access point overlapping area, if yes, execute step S31', otherwise execute step S51';

S31': The terminal adjusts the roaming threshold to the fifth threshold, and executes step S23;

S51': The terminal adjusts the roaming threshold to the first threshold, and executes step S23;

S23: The terminal sets the adjustment duration;

S24: Judging whether the adjustment duration is over.

Specifically, when the terminal is located in the overlapping area of the access point, it may receive two or more AP signals with similar signal strengths. switch. In the adaptive roaming method provided in this embodiment, after the terminal judges that its motion state is stationary, it further judges the signal environment where it is located to adjust the roaming threshold, that is, steps S50-S51.

It can be understood that, when the terminal is stationary and in an overlapping area of access points, in order to avoid signal instability caused by repeated switching between overlapping APs, the terminal will adjust its own roaming threshold in this embodiment to make AP switching possible. Even smaller, that is, the fifth threshold T ₅ < the first threshold T ₁ .

An embodiment of the present invention also proposes a terminal 50 as shown in FIG. 11 . According to FIG. 11 , the terminal 50 may include an internal communication bus 51 , a processor (Processor) 52 , a read only memory (ROM) 53 , a random access memory (RAM) 54 , and a communication port 55 . When implemented on a personal computer, the system 50 for adaptive adjustment of video transmission parameters may also include a hard disk 56 .

The internal communication bus 51 can realize data communication between components of the terminal 50 . The processor 52 may make a judgment and issue a prompt, so as to execute the adaptive roaming method as in any one of the preceding embodiments. In some embodiments, processor 52 may consist of one or more processors. The communication port 55 can realize data communication between the terminal 50 and the outside. In some embodiments, the terminal 50 can send and receive information and data from the network through the communication port 55 .

Terminal 50 can also include different forms of program storage units and data storage units, such as hard disk 56, read-only memory (ROM) 53 and random access memory (RAM) 54, which can store various data used by computer processing and/or communication files, and possibly program instructions executed by processor 52. The processor executes these instructions to implement the main parts of the method. The result processed by the processor is transmitted to the user equipment through the communication port, and displayed on the user interface.

The present invention also provides a computer-readable medium storing computer program codes, wherein the computer program codes implement the method in any one of the preceding embodiments when executed by a processor.

The basic concepts have been described above, and obviously, for those skilled in the art, the above disclosure of the invention is only an example, and does not constitute a limitation to the present application. Although not expressly stated here, various modifications, improvements and amendments to this application may be made by those skilled in the art. Such modifications, improvements, and amendments are suggested in this application, so such modifications, improvements, and amendments still belong to the spirit and scope of the exemplary embodiments of this application.

Meanwhile, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and/or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that two or more references to "an embodiment" or "an embodiment" or "an alternative embodiment" in different places in this specification do not necessarily refer to the same embodiment . In addition, certain features, structures or characteristics of one or more embodiments of the present application may be properly combined.

Some aspects of the present application may be entirely implemented by hardware, may be entirely implemented by software (including firmware, resident software, microcode, etc.), or may be implemented by a combination of hardware and software. The above hardware or software may be referred to as "block", "module", "engine", "unit", "component" or "system". The processor can be one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DAPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), processors , a controller, a microcontroller, a microprocessor, or a combination thereof. Additionally, aspects of the present application may be embodied as a computer product comprising computer readable program code on one or more computer readable media. For example, computer-readable media may include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, magnetic tape...), optical disks (e.g., compact disk CD, digital versatile disk DVD...), smart cards, and flash memory devices ( For example, cards, sticks, key drives...).

A computer readable medium may contain a propagated data signal embodying a computer program code, for example, in baseband or as part of a carrier wave. The propagated signal may take many forms, including electromagnetic, optical, etc., or a suitable combination. The computer readable medium can be any computer readable medium, other than computer readable storage medium, which can communicate, propagate or transfer the program for use by being connected to an instruction execution system, apparatus or device. Program code on a computer readable medium may be transmitted over any suitable medium, including radio, electrical cables, fiber optic cables, radio frequency signals, or the like, or combinations of any of the foregoing.

In the same way, it should be noted that in order to simplify the expression disclosed in the present application and help the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of the present application, sometimes multiple features are combined into one embodiment, drawings or descriptions thereof. This method of disclosure does not, however, imply that the subject matter of the application requires more features than are recited in the claims. Indeed, embodiment features are less than all features of a single foregoing disclosed embodiment.

In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of the embodiments use the modifiers "about", "approximately" or "substantially" in some examples. grooming. Unless otherwise stated, "about", "approximately" or "substantially" indicates that the stated figure allows for a variation of ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that can vary depending upon the desired characteristics of individual embodiments. In some embodiments, numerical parameters should take into account the specified significant digits and adopt the general digit reservation method. Although the numerical ranges and parameters used in some embodiments of the present application to confirm the breadth of the scope are approximate values, in specific embodiments, such numerical values are set as precisely as practicable.

Although the present application has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application, and can also be made without departing from the spirit of the present application. Various equivalent changes or substitutions, therefore, as long as the changes and modifications to the above-mentioned embodiments are within the spirit of the present application, they will all fall within the scope of the claims of the present application.

Claims (17)

1. An adaptive roaming method, the adaptive roaming method is implemented by a terminal, characterized in that the adaptive roaming method comprises: The terminal perceives its own roaming parameter-related state; The terminal adjusts the roaming parameter according to the state related to the roaming parameter. 2. The adaptive roaming method according to claim 1, further comprising: before the terminal perceives a state related to roaming parameters: Judging whether the difference between the signal strength of the first access point received by the terminal and the roaming threshold is smaller than the judging threshold, when the difference is smaller than the judging threshold, the terminal will perceive the state related to roaming parameters, and according to the Adjust the roaming parameters according to the status related to the roaming parameters mentioned above. 3. The adaptive roaming method according to claim 2, further comprising: after the terminal adjusts the roaming parameters according to the related state of the roaming parameters: The terminal sets the adjustment duration; When the adjustment duration ends, it is judged whether the difference is smaller than the judgment threshold. 4. The adaptive roaming method according to claim 3, wherein the roaming parameters include roaming sensitivity and roaming threshold. 5 . The adaptive roaming method according to claim 4 , wherein the roaming parameter-related status includes the motion status, service type and scene of the terminal. 6 . 6. The adaptive roaming method according to claim 5, wherein the step of adjusting roaming sensitivity according to the related state of the roaming parameters comprises: When the motion state is static, the terminal adjusts the roaming sensitivity to the first sensitivity; When the motion state is moving, the terminal adjusts the roaming sensitivity to the second sensitivity; wherein, The first sensitivity is greater than the second sensitivity. 7. The adaptive roaming method according to claim 6, wherein when the motion state is moving, the step of adjusting the roaming sensitivity of the terminal to the second sensitivity comprises: according to the moving speed of the terminal , determining the corresponding sub-sensitivities among the multiple sub-sensitivities of the second sensitivity. 8. The adaptive roaming method according to claim 5, wherein the step of adjusting roaming sensitivity according to the related state of the roaming parameters comprises: judging whether the current service of the terminal is a no-data service; When the current service is a no-data service, the terminal adjusts the roaming sensitivity to a third sensitivity; When the current service is not a data-free service, the terminal adjusts the roaming sensitivity to the fourth sensitivity; wherein, The third sensitivity is greater than the fourth sensitivity. 9. The adaptive roaming method according to claim 8, wherein the step of adjusting roaming sensitivity according to the roaming parameter-related state further comprises: When the current service is not a data-free service, match the current service with multiple data services with different delay sensitivities, and determine a corresponding sub-sensitivity among multiple sub-sensitivities of the fourth sensitivity according to the matching result. 10. The adaptive roaming method according to claim 6, wherein the step of adjusting roaming sensitivity according to the related state of the roaming parameters comprises: When the motion state is stationary and the terminal is not in an overlapping area of access points, the terminal adjusts the roaming sensitivity to the first sensitivity; When the motion state is stationary and the terminal is in an overlapping area of access points, the terminal adjusts the roaming sensitivity to the fifth sensitivity; wherein, The fifth sensitivity is greater than the first sensitivity. 11. The adaptive roaming method according to claim 5, wherein the step of adjusting the roaming threshold according to the relevant state of the roaming parameter comprises: When the motion state is stationary, the terminal adjusts the roaming threshold to a first threshold; When the motion state is moving, the terminal adjusts the roaming threshold to a second threshold; wherein, The first threshold is less than the second threshold. 12. The adaptive roaming method according to claim 11, wherein when the motion state is moving, the step of the terminal adjusting the roaming threshold to the second threshold comprises: according to the moving speed of the terminal , determining a corresponding sub-threshold among the plurality of sub-thresholds of the second threshold. 13. The adaptive roaming method according to claim 5, wherein the step of adjusting the roaming threshold according to the related state of the roaming parameter comprises: judging whether the current service of the terminal is a no-data service; When the current service is no data service, the terminal adjusts the roaming threshold to a third threshold; When the current service is not a data-free service, the terminal adjusts the roaming threshold to a fourth threshold; wherein, The third threshold is smaller than the fourth threshold. 14. The adaptive roaming method according to claim 13, wherein the step of adjusting the roaming threshold according to the related state of the roaming parameter further comprises: When the current service is not a data-free service, match the current service with multiple data services with different delay sensitivities, and determine a corresponding sub-threshold among the multiple sub-thresholds of the fourth threshold according to the matching result. 15. The adaptive roaming method according to claim 11, wherein the step of adjusting the roaming threshold according to the related state of the roaming parameter comprises: When the motion state is stationary and the terminal is not in an access point overlapping area, the terminal adjusts the roaming threshold to a first threshold; When the motion state is stationary and the terminal is in an overlapping area of access points, the terminal adjusts the roaming threshold to a fifth threshold; wherein, The fifth threshold is less than the first threshold. 16. A terminal comprising: memory for storing instructions executable by the processor; A processor, configured to execute the instructions to implement the method according to any one of claims 1-15. 17. A computer-readable medium storing computer program code, the computer program code implementing the method according to any one of claims 1-15 when executed by a processor.

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