CN114125968A - Method and device for switching wireless access point of wireless terminal - Google Patents
Method and device for switching wireless access point of wireless terminal Download PDFInfo
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method and a device for switching wireless access points of a wireless terminal. Wherein, the method comprises the following steps: when the master station carries out data communication with the wireless access point connected with the master station, the slave station scans at least one target wireless access point according to a preset period under the condition that the slave station meets a preset condition; determining one of at least one target wireless access point as a wireless access point to be switched; and if the wireless access point connected with the main site meets the preset triggering condition, switching the wireless access point of the wireless terminal to the wireless access point to be switched. The invention solves the technical problem that the wireless terminal in the prior art can not efficiently realize the switching of the wireless access point.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for switching a wireless access point of a wireless terminal.
Background
In the related art, for example, a network roaming switching method applied to a Wireless Distribution System (WDS) in a vehicle communicatively connected to a plurality of Access Points (APs) provided on a roadside includes: the vehicle-mounted WDS carries out virtualization configuration in advance and constructs at least two virtual clients; the vehicle-mounted WDS configures a candidate AP association table, establishes initial connection, and pre-virtualizes and configures at least two wireless service local area networks for each AP; the vehicle-mounted WDS is configured with a main link and an auxiliary link, wherein the main link is used for being responsible for network communication and data transmission, and the auxiliary link is used for being responsible for roaming switching; the vehicle-mounted WDS receives beacon frames sent by a plurality of adjacent APs in real time, adds the APs meeting the matching requirement into the candidate AP association table, and sorts the APs in the candidate AP association table; when a roaming timer of the vehicle-mounted WDS reports the roaming detection, the vehicle-mounted WDS detects the signal intensity of the AP currently associated with the auxiliary link and performs AP switching when the roaming switching condition is met; the step of configuring the main link and the auxiliary link by the vehicle-mounted WDS comprises the following steps: after establishing initial connection, the vehicle-mounted WDS sets a main link and an auxiliary link according to a link definition rule, wherein the link means that a virtual client is successfully connected with a wireless service local area network of the AP, and one virtual client is correspondingly connected with one wireless service local area network.
However, the above technical solutions have the following technical problems:
1. in the technical scheme, two virtual clients are used for realizing the AP switching, wherein one virtual client (a primary client) is used for communication, and the other virtual client (a secondary client) is responsible for roaming switching. However, the problems with this solution are: if the auxiliary client and the main client are on the same channel, only other alternative APs on the channel can be scanned, and if the auxiliary client and the main client are not on the same channel, the main client is separated from the channel of the currently connected network when the auxiliary client is switched to other channels, so that the information of the main AP cannot be received in real time, and the association with the main AP may be disconnected by the main client.
2. In the existing roaming technology, the condition for triggering roaming is usually that the client detects that the channel strength of the AP is lower than a certain threshold. The triggering condition is relatively single, and the method can not adapt to a complex and variable wireless environment sometimes. Moreover, the signal strength is not equal to the signal-to-noise ratio, which is a key factor affecting the communication quality.
3. The technical solution only discusses the roaming scenario, and does not consider AP handover in other cases (non-roaming scenario). In some roaming scenarios, the APs use the same channel, and the usage scenario is smaller.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a method and a device for switching a wireless access point of a wireless terminal, which are used for at least solving the technical problem that the wireless terminal in the prior art cannot efficiently realize the switching of the wireless access point.
According to an aspect of the embodiments of the present invention, there is provided a method for switching a wireless access point of a wireless terminal, where the wireless terminal includes a master station and a slave station, the method includes: when the master station carries out data communication with the wireless access point connected with the master station, the slave station scans at least one target wireless access point according to a preset period under the condition that a preset condition is met; determining one of the at least one target wireless access point as a wireless access point to be switched; and if the wireless access point connected with the main site meets a preset triggering condition, switching the wireless access point of the wireless terminal to the wireless access point to be switched.
Optionally, the scanning, by the slave station, of at least one target wireless access point according to a preset period when a preset condition is met includes: acquiring the signal-to-noise ratio of a wireless access point connected with the master station; judging whether the signal-to-noise ratio is continuously smaller than a signal-to-noise ratio threshold value within preset time; when the signal-to-noise ratio is continuously smaller than the signal-to-noise ratio threshold value, triggering the slave station to scan the target wireless access point in the preset period; and when the signal-to-noise ratio is continuously greater than or equal to the signal-to-noise ratio threshold value, the slave station is not triggered to scan the target wireless access point in the preset period.
Optionally, triggering the slave station to scan the target wireless access point in the preset period includes: detecting whether the master station and a wireless access point connected with the master station carry out data communication or not in the preset period; under the condition that the master station does not perform data communication with the wireless access point connected with the master station, the master station enters a power saving mode; under the condition that the master station performs data communication with the wireless access point connected with the master station, the master station enters a power saving mode after the data communication between the master station and the wireless access point connected with the master station is completed; and after the master station enters a power saving mode, the slave station switches channels and continues to scan the target wireless access point.
Optionally, determining that one of the at least one target wireless access point is a wireless access point to be switched includes: acquiring the communication quality of at least one target wireless access point; determining a maximum value of communication quality in at least one of the target wireless access points; and determining the target wireless access point corresponding to the maximum value of the communication quality as the wireless access point to be switched.
Optionally, the preset trigger condition includes a threshold trigger and a communication quality gap trigger, where the threshold trigger includes at least one of: packet loss rate, signal-to-noise ratio, and wireless communication distance, if the wireless access point connected to the master station satisfies a preset trigger condition, then switching the wireless access point of the wireless terminal to the wireless access point to be switched, including: in a preset time range, if the packet loss rate of a wireless access point connected with the main site is continuously greater than the maximum packet loss rate of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the main site is greater than a first preset value, switching the wireless access point of the wireless terminal to be switched; in a preset time range, if the signal-to-noise ratio of the wireless access point connected with the primary site is continuously smaller than the worst signal-to-noise ratio of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the primary site is larger than a first preset value, switching the wireless access point of the wireless terminal to be switched to the wireless access point to be switched; and in a preset time range, if the wireless communication distance between the master station and the wireless access point connected with the master station is continuously greater than the farthest wireless communication distance of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the master station is greater than a first preset value, switching the wireless access point of the wireless terminal to be switched to the wireless access point to be switched.
Optionally, the preset triggering condition includes communication quality gap triggering, and if the wireless access point connected to the primary site meets the preset triggering condition, switching the wireless access point of the wireless terminal to the to-be-switched wireless access point includes: and in a preset time range, if the communication quality difference between the wireless access point to be switched and the wireless access point connected with the master site is continuously larger than a second preset value, switching the wireless access point of the wireless terminal to the wireless access point to be switched.
Optionally, switching the wireless access point of the wireless terminal to the wireless access point to be switched includes: and establishing communication connection between the slave station and the wireless access point to be switched, and disconnecting the communication connection between the master station and the wireless access point connected with the master station.
According to another aspect of the embodiments of the present invention, there is also provided a switching apparatus of a wireless access point of a wireless terminal, where the wireless terminal includes a master station and a slave station, and the switching apparatus includes: the scanning module is used for scanning at least one target wireless access point according to a preset period under the condition that the slave station meets a preset condition when the master station performs data communication with the wireless access point connected with the master station; the determining module is used for determining one of the at least one target wireless access point as a wireless access point to be switched; and the switching module is used for switching the wireless access point of the wireless terminal to the wireless access point to be switched if the wireless access point connected with the main station meets a preset triggering condition.
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium, where the computer-readable storage medium includes a stored program, and when the program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the method for switching the wireless access point of the wireless terminal described in any one of the above.
According to another aspect of the embodiments of the present invention, there is also provided a processor configured to execute a program, where the program executes the method for switching the wireless access point of the wireless terminal described in any one of the above.
In the embodiment of the invention, the wireless terminal comprises a master station and a slave station, and when the wireless access points connected with the master station and the slave station are used for data communication, the slave station scans at least one target wireless access point according to a preset period under the condition that the slave station meets a preset condition; determining one of at least one target wireless access point as a wireless access point to be switched; if the wireless access point connected with the main site meets the preset triggering condition, the wireless access point of the wireless terminal is switched to the wireless access point to be switched, by utilizing a mechanism that the main site and the slave site of the wireless terminal coexist, at least one target wireless access point is scanned according to a preset period when the slave site meets the preset condition, and one target wireless access point is screened out from the at least one target wireless access point to be used as the wireless access point to be switched, and then when the wireless access point connected with the main site meets the preset triggering condition, the wireless access point of the wireless terminal is switched to the wireless access point to be switched, so that the technical effect that the wireless terminal can quickly and efficiently switch the wireless access point is achieved, and the technical problem that the wireless terminal in the prior art cannot efficiently realize the switching of the wireless access point is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a handover method of a wireless access point of a wireless terminal according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a switching apparatus of a wireless access point of a wireless terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present invention, there is provided an embodiment of a method for handover of a wireless access point of a wireless terminal, the wireless terminal including a master station and a slave station, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
Fig. 1 is a flowchart of a handover method of a wireless access point of a wireless terminal according to an embodiment of the present invention, and as shown in fig. 1, the handover method of the wireless access point of the wireless terminal includes the steps of:
step S102, when the master station carries out data communication with the wireless access point connected with the master station, the slave station scans at least one target wireless access point according to a preset period under the condition that the slave station meets a preset condition;
the wireless terminal includes two virtual stations, one of which is a master station and the other of which is a slave station. In a specific implementation, a virtual station currently connected to a wireless access point may be used as a master station, and a virtual station not currently connected to a wireless access point may be used as a slave station. It should be noted that the master station and the slave station may be determined according to whether the current virtual station is already connected to the wireless access point.
In an optional implementation manner, while the master station performs data communication with the wireless access point connected to the master station, the slave station is responsible for periodically scanning signals of other wireless access points on the premise that a preset condition is met, so as to prepare for rapidly switching the wireless access points at any time. At this time, the other wireless access point is the target wireless access point. In addition, the preset period is set by the wireless terminal according to actual needs, and in a specific implementation process, the preset period may be 5min, 15min, 1h, and the like, which is not limited herein.
Step S104, determining one of at least one target wireless access point as a wireless access point to be switched;
since the number of the target wireless access points scanned from the station can be one or more, one target wireless access point meeting the requirement is screened from one or more target wireless access points to be used as a wireless access point to be switched, and a suitable wireless access point is preselected for the subsequent wireless access point to be switched.
And step S106, if the wireless access point connected with the main site meets the preset triggering condition, switching the wireless access point of the wireless terminal to the wireless access point to be switched.
In an optional implementation manner, in the process of switching the wireless access point of the wireless terminal to the to-be-switched wireless access point, the switching action of the wireless terminal is triggered only when the wireless access point connected to the master station meets a preset trigger condition. In a specific implementation process, the preset trigger condition includes, but is not limited to, a threshold trigger, a communication quality gap trigger, and the like. Furthermore, by means of a trigger mode of a preset trigger condition, the detection is more comprehensive and sensitive than that of a main stream Received Signal Strength Indicator (RSSI), so that when the communication quality of a wireless access point connected between a master station and a master station is reduced, the wireless access point can be rapidly switched.
Through the steps, a mechanism that a master station and a slave station of the wireless terminal coexist can be utilized, at least one target wireless access point is scanned according to a preset period when the slave station meets a preset condition, one target wireless access point is screened out from the at least one target wireless access point to serve as a wireless access point to be switched, and then when the wireless access point connected with the master station meets a preset triggering condition, the wireless access point of the wireless terminal is switched to the wireless access point to be switched, so that the technical effect that the wireless terminal can quickly and efficiently switch the wireless access point is achieved, and the technical problem that the wireless terminal in the prior art cannot efficiently realize the switching of the wireless access point is solved.
It should be noted that the above-mentioned method for switching wireless access points of a wireless terminal can be applied to various scenarios, for example, a mobile station may move from the coverage of a certain wireless access point to the coverage of another wireless access point, and at this time, the communication at the station side may be temporarily disconnected, thereby causing data loss or jamming. The above embodiment of the present invention not only can implement the scanning of the candidate target wireless access points on different channels, but also does not affect the connection state of the current communication, and can determine the timing of the wireless access point switching according to the core elements, i.e., the signal-to-noise ratio, the channel utilization rate, and the packet loss rate, that most affect the communication quality (throughput) in the wireless communication. After the switching time delay is optimized as much as possible, seamless switching on the user body feeling can be realized.
In addition, the switching method of the wireless access point of the wireless terminal can also be used in a wireless roaming scene, so that the switching time delay of a station side in the roaming process is optimized, and the user experience is improved; the method can also be used in non-roaming scenes, and as long as connectable wireless access point signals are covered in the moving range of the station, the switching method can be used for realizing the quick switching of the wireless access point.
Optionally, the scanning, by the slave station, of the at least one target wireless access point according to a preset period when a preset condition is met includes: acquiring the signal-to-noise ratio of a wireless access point connected with a master station; judging whether the signal-to-noise ratio is continuously smaller than a signal-to-noise ratio threshold value within preset time; when the signal-to-noise ratio is continuously smaller than the signal-to-noise ratio threshold value, triggering the slave station to scan the target wireless access point in a preset period; and when the signal-to-noise ratio is continuously greater than or equal to the signal-to-noise ratio threshold value, the slave station is not triggered to scan the target wireless access point in a preset period.
It should be noted that the snr threshold is a value set in a reasonable range according to the needs of the actual application scenario, and is only used for triggering scanning and not triggering handover.
In an optional implementation manner, in a normal situation, if the master station and the wireless access point connected to the master station can normally communicate with each other with higher quality, the signal-to-noise ratio of the wireless access point connected to the master station is greater than or equal to the signal-to-noise ratio threshold, and at this time, it is not necessary to switch to another wireless access point; and when the signal-to-noise ratio of the wireless access point connected with the master station is smaller than the signal-to-noise ratio threshold, the wireless access point is not enough to be triggered to be switched, but the signal quality of the wireless access point connected with the master station is reduced, and the slave station needs to be started to prepare for switching to other wireless access points at any time later.
In an optional implementation manner, if the signal-to-noise ratio of the wireless access point to which the wireless terminal receives the connection of the master station is continuously smaller than the signal-to-noise ratio threshold value within a predetermined time, the slave station is triggered to scan the target wireless access point within a preset period; if the signal-to-noise ratio of the wireless access point connected with the master station received by the wireless terminal is continuously greater than or equal to the signal-to-noise ratio threshold value in a preset time, the slave station is not triggered to scan the target wireless access point in a preset period. By the embodiment, frequent triggering of the slave station to scan the target wireless access point in the preset period can be avoided. It should be noted that the predetermined time is less than or equal to the duration of the preset period.
Optionally, the triggering the slave station to scan for the target wireless access point within a preset period includes: detecting whether a wireless access point connected with a master station and the master station carries out data communication or not in a preset period; under the condition that the wireless access point connected with the master station and the master station does not carry out data communication, the master station enters a power saving mode; under the condition that the master station and the wireless access point connected with the master station carry out data communication, the master station enters a power saving mode after the data communication is finished by the master station and the wireless access point connected with the master station; and after the master station enters the power saving mode, switching channels from the slave station and continuously scanning the target wireless access point.
The wireless access point connected by the master station and the wireless access point required to be scanned by the slave station are not in the same channel, so that the problem that the same wireless terminal works in different channels is solved. In an implementation, the scanning of the slave station is periodic, for example, the duration of the preset period is T. When the time T is up, the master station needs to check whether communication activity exists currently, namely whether data communication is performed by the wireless access point connected with the master station and the master station is detected in the preset period; if the master station does not carry out data communication with the wireless access point connected with the master station, the master station immediately enters a power saving mode; and if the master station carries out data communication with the wireless access point connected with the master station, the wireless access point connected with the master station and the master station enters a power saving mode after the current round of data packet interaction is finished. That is, the wireless access point connected to the master station is informed that the master station will enter the power saving mode, and then the wireless access point connected to the master station can think that the master station is sleeping, rather than being detached from the network, so that the wireless access point connected to the master station will not frequently communicate with the master station. The slave station may then switch channels, in this way the slave station may traverse all channels in the frequency band to find one or more target wireless access points for which other signals are stronger.
In addition, after the slave station is triggered to scan the target wireless access point in the preset period, the slave station needs to store the signal-to-noise ratio of the wireless access point which may exist in the current scanning result and the channel utilization parameter carried in the beacon message of the target wireless access point. And after the scanning is finished, the slave station suspends the work, the master station jumps out of the power saving mode, and the wireless access point connected with the master station is continued. And after the slave station finishes scanning the target wireless access point in the preset period, the scanning time period of the slave station returns to zero, and when the time T is reached again, the actions are executed again.
In the above embodiment, in consideration of the deficiency of the channel switching problem in the mainstream technology, the slave station can switch the channel to scan the target wireless access point by using the power saving mode mechanism on the premise that the wireless connection is not disconnected between the master station and the wireless access point to which the master station is connected.
Optionally, determining one of the at least one target wireless access point as a wireless access point to be switched includes: acquiring the communication quality of at least one target wireless access point; determining a maximum value of communication quality in at least one target wireless access point; and determining the target wireless access point corresponding to the maximum value of the communication quality as the wireless access point to be switched.
In an optional implementation manner, the communication quality of one or more target wireless access points may be obtained, then the maximum value of the communication quality screened from the one or more target wireless access points is selected, and the target wireless access point corresponding to the maximum value of the communication quality is used as the wireless access point to be switched.
In an alternative embodiment, the measurement factors of the communication quality of the target wireless access point include a signal-to-noise ratio and a channel utilization ratio, and the communication quality of the target wireless access point adopts the following formula: q ═ β SNRtarget+γ*CUtargetWhere β and γ are adjustable factors, adding to 1; q is the communication quality of the target wireless access point; SNRtargetSignal to noise ratio for the target wireless access point; CUtargetIs the channel utilization of the target wireless access point.
It should be noted that the signal-to-noise ratio affects the communication rate, and the channel utilization affects the chance of accessing the channel, thereby affecting the communication delay, both of which affect the throughput per unit time.
In addition, the trigger factors for switching the wireless access point of the wireless terminal to the wireless access point to be switched include: the packet loss rate is real-time packet loss rate, and is not historical statistics packet loss rate. Specifically, the tolerable maximum packet loss rate, the tolerable worst channel ratio, and the tolerable farthest wireless communication distance of the wireless terminal; wherein the worst channel ratio is less than the signal-to-noise ratio of the wireless access point to which the primary site is connected.
Optionally, the preset trigger condition includes a threshold trigger and a communication quality gap trigger, where the threshold trigger includes at least one of: packet loss rate, signal-to-noise ratio, wireless communication distance, if the wireless access point that the master site connects satisfies the preset trigger condition, then switch wireless terminal's wireless access point to waiting to switch wireless access point, include: in a preset time range, if the packet loss rate of a wireless access point connected with a main site is continuously greater than the maximum packet loss rate of a wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the main site is greater than a first preset value, switching the wireless access point of the wireless terminal to the wireless access point to be switched; in a preset time range, if the signal-to-noise ratio of the wireless access point connected with the main site is continuously smaller than the worst signal-to-noise ratio of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the main site is larger than a first preset value, switching the wireless access point of the wireless terminal to be switched to the wireless access point to be switched; and in a preset time range, if the wireless communication distance between the master station and the wireless access point connected with the master station is continuously greater than the farthest wireless communication distance of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the master station is greater than a first preset value, switching the wireless access point of the wireless terminal to be switched to the wireless access point to be switched.
In an alternative embodiment, when the wireless terminal is gradually far away from the wireless access point to which the master station is connected, the wireless communication distance is continuously increased, the communication signal-to-noise ratio is continuously decreased, and the packet loss rate is continuously increased. When the packet loss rate of the communication between the wireless access point connected with the master station and the wireless terminal is continuously greater than the maximum tolerable packet loss rate of the wireless terminal within a preset time range, or the signal-to-noise ratio of the wireless access point connected with the master station is continuously lower than the worst tolerable channel ratio of the wireless terminal within the preset time range, or the wireless communication distance between the wireless access point and the wireless terminal is continuously greater than the farthest tolerable wireless communication distance of the wireless terminal within the preset time range, if a best wireless access point to be switched can be found, so that the communication quality difference delta Q between the wireless access point to be switched and the wireless access point connected with the master station is greater than 0, the wireless access point switching step is carried out.
It should be noted that the first preset value may be 0 or a value close to 0; in the above triggering condition, the setting of the preset time can prevent the unstable phenomenon that the wireless terminal repeatedly jumps in the wireless association at the junction of the two wireless access point signals.
In an optional implementation manner, the calculation formula of the communication quality gap between the wireless access point to be switched and the wireless access point connected to the primary station is as follows: Δ Q ═ β (SNR)target-SNRcurrent)+γ*(CUcurrent-CUtarget). The lower target is a wireless access point to be switched, and the lower current is a wireless access point connected with the main station. The larger the signal-to-noise ratio, the better, the smaller the channel utilization, the better. Therefore, the larger Δ Q indicates that the communication quality gap of the wireless access point to be switched to the wireless access point connected with the master station for the wireless terminal is larger, i.e. the wireless access point to be switched is better.
Optionally, the preset triggering condition includes communication quality gap triggering, and if the wireless access point connected to the master station meets the preset triggering condition, the wireless access point of the wireless terminal is switched to the wireless access point to be switched, including: and in a preset time range, if the communication quality difference between the wireless access point to be switched and the wireless access point connected with the main site is continuously larger than a second preset value, switching the wireless access point of the wireless terminal to the wireless access point to be switched.
In an optional implementation manner, if a to-be-switched wireless access point can be found, so that the communication quality difference Δ Q between the to-be-switched wireless access point and the wireless access point connected to the primary station is greater than a preset value within a preset time range, it indicates that a new wireless access point that is significantly better for the wireless terminal has been found, and at this time, a behavior of switching the wireless access point is also triggered. It should be noted that the second preset value is a non-zero value, for example, the value of the second preset value may be 0.5, 1, and the like.
Optionally, switching a wireless access point of the wireless terminal to a to-be-switched wireless access point includes: and establishing communication connection between the slave station and the wireless access point to be switched, and disconnecting the communication connection between the master station and the wireless access point connected with the master station.
In an optional implementation manner, when the wireless access point switching meets a preset triggering condition, finding a wireless access point to be switched from a station, and performing wireless association with the wireless access point to be switched; after the association action is completed, the master station disconnects the communication connection of the wireless access point connected with the master station, so that the fast switching is realized.
Further, after the fast handover is realized, the slave station becomes the master station, and the master station becomes the slave station, and the handover step is continuously executed.
Example 2
According to another aspect of the embodiments of the present invention, there is also provided a switching apparatus of a wireless access point of a wireless terminal, where the wireless terminal includes a master station and a slave station, fig. 2 is a schematic diagram of a switching apparatus of a wireless access point of a wireless terminal according to an embodiment of the present invention, and as shown in fig. 2, the switching apparatus of a wireless access point of a wireless terminal includes: a scanning module 22, a determining module 24 and a switching module 26. The following describes in detail a switching device of a wireless access point of the wireless terminal.
The scanning module 22 is configured to scan at least one target wireless access point according to a preset period when the slave station meets a preset condition while the master station performs data communication with the wireless access point connected to the master station; a determining module 24, connected to the scanning module 22, for determining one of the at least one target wireless access point as a wireless access point to be switched; a switching module 26, connected to the determining module 24, for switching the wireless access point of the wireless terminal to the wireless access point to be switched if the wireless access point connected to the primary station satisfies a preset trigger condition.
It should be noted that the above modules may be implemented by software or hardware, for example, for the latter, the following may be implemented: the modules can be located in the same processor; and/or the modules are located in different processors in any combination.
In the above embodiment, the switching device of the wireless access point of the wireless terminal may utilize a mechanism that a master station and a slave station of the wireless terminal coexist, scan at least one target wireless access point according to a preset period when the slave station meets a preset condition, and screen out one from the at least one target wireless access point as a wireless access point to be switched, and then switch the wireless access point of the wireless terminal to the wireless access point to be switched when the wireless access point connected to the master station meets a preset trigger condition, thereby achieving a technical effect that the wireless terminal can quickly and efficiently switch the wireless access point, and further solving a technical problem that the wireless terminal in the prior art cannot efficiently switch the wireless access point.
It should be noted here that the scanning module 22, the determining module 24 and the switching module 26 correspond to steps S102 to S106 in embodiment 1, and the modules are the same as the examples and application scenarios realized by the corresponding steps, but are not limited to the disclosure in embodiment 1.
Optionally, the scanning module 22 includes: the first acquisition unit is used for acquiring the signal to noise ratio of a wireless access point connected with a master station; the judging unit is used for judging whether the signal-to-noise ratio is continuously smaller than a signal-to-noise ratio threshold value within preset time; the first processing unit is used for triggering the slave station to scan the target wireless access point in a preset period when the signal-to-noise ratio is continuously smaller than the signal-to-noise ratio threshold value; and the second processing unit is used for not triggering the slave station to scan the target wireless access point in a preset period when the signal-to-noise ratio is continuously greater than or equal to the signal-to-noise ratio threshold value.
Optionally, the first processing unit includes: the detection subunit is used for detecting whether the wireless access point connected with the master station and the master station performs data communication or not in a preset period; the first processing subunit is configured to, when the master station does not perform data communication with the wireless access point connected to the master station, enter a power saving mode by the master station; the second processing subunit is used for enabling the master station to enter a power saving mode after the data communication between the master station and the wireless access point connected with the master station is completed under the condition that the master station and the wireless access point connected with the master station carry out data communication; and the third processing subunit is configured to, after the master station enters the power saving mode, switch the channel from the station and continue to scan the target wireless access point.
Optionally, the determining module 24 includes: a second obtaining unit, configured to obtain communication quality of at least one target wireless access point; a first determination unit configured to determine a maximum value of communication quality in at least one target wireless access point; and the second determining unit is used for determining the target wireless access point corresponding to the maximum value of the communication quality as the wireless access point to be switched.
Optionally, the preset trigger condition includes a threshold trigger and a communication quality gap trigger, where the threshold trigger includes at least one of: packet loss rate, signal-to-noise ratio, and wireless communication distance, the switching module 26 includes: the first switching unit is used for switching the wireless access point of the wireless terminal to the wireless access point to be switched if the packet loss rate of the wireless access point connected with the main station is continuously greater than the maximum packet loss rate of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the main station is greater than a first preset value within a preset time range; the second switching unit is used for switching the wireless access point of the wireless terminal to the wireless access point to be switched if the signal-to-noise ratio of the wireless access point connected with the main station is continuously smaller than the worst signal-to-noise ratio of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the main station is larger than the first preset value within a preset time range; and the third switching unit is used for switching the wireless access point of the wireless terminal to the wireless access point to be switched if the wireless communication distance between the master station and the wireless access point connected with the master station is continuously greater than the farthest wireless communication distance of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the master station is greater than the first preset value within the preset time range.
Optionally, the preset trigger condition includes a communication quality gap trigger, and the switching module 26 includes: and the fourth switching unit is used for switching the wireless access point of the wireless terminal to the wireless access point to be switched if the communication quality difference between the wireless access point to be switched and the wireless access point connected with the master station is continuously larger than the second preset value within the preset time range.
Optionally, the switching module 26 includes: and the execution unit is used for establishing the communication connection between the slave station and the wireless access point to be switched and disconnecting the communication connection between the master station and the wireless access point connected with the master station.
Example 3
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium, where the computer-readable storage medium includes a stored program, and when the program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the method for switching the wireless access point of the wireless terminal.
Example 4
According to another aspect of the embodiments of the present invention, there is also provided a processor configured to execute a program, where the program executes a handover method of a wireless access point of a wireless terminal according to any one of the above.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for switching a wireless access point of a wireless terminal, the wireless terminal including a master station and a slave station, the method comprising:
when the master station carries out data communication with the wireless access point connected with the master station, the slave station scans at least one target wireless access point according to a preset period under the condition that a preset condition is met;
determining one of the at least one target wireless access point as a wireless access point to be switched;
and if the wireless access point connected with the main site meets a preset triggering condition, switching the wireless access point of the wireless terminal to the wireless access point to be switched.
2. The method according to claim 1, wherein the slave station scans for at least one target wireless access point according to a preset period if a preset condition is met, and the method comprises:
acquiring the signal-to-noise ratio of a wireless access point connected with the master station;
judging whether the signal-to-noise ratio is continuously smaller than a signal-to-noise ratio threshold value within preset time;
when the signal-to-noise ratio is continuously smaller than the signal-to-noise ratio threshold value, triggering the slave station to scan the target wireless access point in the preset period;
and when the signal-to-noise ratio is continuously greater than or equal to the signal-to-noise ratio threshold value, the slave station is not triggered to scan the target wireless access point in the preset period.
3. The method of claim 2, wherein triggering the slave station to scan for the target wireless access point for the preset period comprises:
detecting whether the master station and a wireless access point connected with the master station carry out data communication or not in the preset period;
under the condition that the master station does not perform data communication with the wireless access point connected with the master station, the master station enters a power saving mode;
under the condition that the master station performs data communication with the wireless access point connected with the master station, the master station enters a power saving mode after the data communication between the master station and the wireless access point connected with the master station is completed;
and after the master station enters a power saving mode, the slave station switches channels and continues to scan the target wireless access point.
4. The method of claim 1, wherein determining one of the at least one target wireless access point as the wireless access point to be handed off comprises:
acquiring the communication quality of at least one target wireless access point;
determining a maximum value of communication quality in at least one of the target wireless access points;
and determining the target wireless access point corresponding to the maximum value of the communication quality as the wireless access point to be switched.
5. The method of claim 1, wherein the preset trigger condition comprises a threshold trigger and a communication quality gap trigger, wherein the threshold trigger comprises at least one of: packet loss rate, signal-to-noise ratio, and wireless communication distance, if the wireless access point connected to the master station satisfies a preset trigger condition, then switching the wireless access point of the wireless terminal to the wireless access point to be switched, including:
in a preset time range, if the packet loss rate of a wireless access point connected with the main site is continuously greater than the maximum packet loss rate of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the main site is greater than a first preset value, switching the wireless access point of the wireless terminal to be switched;
in a preset time range, if the signal-to-noise ratio of the wireless access point connected with the primary site is continuously smaller than the worst signal-to-noise ratio of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the primary site is larger than a first preset value, switching the wireless access point of the wireless terminal to be switched to the wireless access point to be switched;
and in a preset time range, if the wireless communication distance between the master station and the wireless access point connected with the master station is continuously greater than the farthest wireless communication distance of the wireless terminal and the communication quality difference between the wireless access point to be switched and the wireless access point connected with the master station is greater than a first preset value, switching the wireless access point of the wireless terminal to be switched to the wireless access point to be switched.
6. The method according to claim 1, wherein the preset trigger condition includes a communication quality gap trigger, and if the wireless access point connected to the primary station satisfies the preset trigger condition, switching the wireless access point of the wireless terminal to the wireless access point to be switched includes:
and in a preset time range, if the communication quality difference between the wireless access point to be switched and the wireless access point connected with the master site is continuously larger than a second preset value, switching the wireless access point of the wireless terminal to the wireless access point to be switched.
7. The method according to any one of claims 1 to 6, wherein switching the wireless access point of the wireless terminal to the wireless access point to be switched comprises:
and establishing communication connection between the slave station and the wireless access point to be switched, and disconnecting the communication connection between the master station and the wireless access point connected with the master station.
8. An apparatus for switching a wireless access point of a wireless terminal, the wireless terminal including a master station and a slave station, the apparatus comprising:
the scanning module is used for scanning at least one target wireless access point according to a preset period under the condition that the slave station meets a preset condition when the master station performs data communication with the wireless access point connected with the master station;
the determining module is used for determining one of the at least one target wireless access point as a wireless access point to be switched;
and the switching module is used for switching the wireless access point of the wireless terminal to the wireless access point to be switched if the wireless access point connected with the main station meets a preset triggering condition.
9. A computer-readable storage medium, comprising a stored program, wherein when the program runs, the program controls an apparatus in which the computer-readable storage medium is located to execute the method for switching the wireless access point of the wireless terminal according to any one of claims 1 to 7.
10. A processor, characterized in that the processor is configured to run a program, wherein the program is run to perform the method of handover of a wireless access point of a wireless terminal according to any of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114885390A (en) * | 2022-06-02 | 2022-08-09 | 普联技术有限公司 | Wireless roaming method, device, electronic equipment and readable storage medium |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905708A (en) * | 2005-07-27 | 2007-01-31 | 恩益禧电子股份有限公司 | High-speed switching base station searching method and mobile communication terminal thereof |
| WO2007034461A2 (en) * | 2005-09-26 | 2007-03-29 | Koninklijke Philips Electronics N.V. | Multi-channel wireless systems having dynamic rendezvous channels |
| CN101145802A (en) * | 2007-10-24 | 2008-03-19 | 杭州华三通信技术有限公司 | A link switching method and device |
| CN101904200A (en) * | 2007-12-19 | 2010-12-01 | 摩托罗拉公司 | The proactive handoff procedures that is used for the network initiation of fast moving wireless devices |
| US20110244887A1 (en) * | 1996-09-09 | 2011-10-06 | Tracbeam Llc | Locating a mobile station and applications therefor |
| CN103686089A (en) * | 2013-12-19 | 2014-03-26 | 武汉虹信通信技术有限责任公司 | Train monitoring system based on WDS |
| CN104158580A (en) * | 2014-07-15 | 2014-11-19 | 清华大学 | Vehicular mobile communication method for strengthening mobile terminal signal |
| CN104602312A (en) * | 2015-01-30 | 2015-05-06 | 海信集团有限公司 | Wireless channel switching method and AP (Access Point) |
| CN105657771A (en) * | 2016-01-06 | 2016-06-08 | 广东欧珀移动通信有限公司 | Channel switching method, and terminal |
| CN105828397A (en) * | 2016-03-28 | 2016-08-03 | 维沃移动通信有限公司 | Wireless access point switching method and mobile terminal |
| CN106454982A (en) * | 2016-10-19 | 2017-02-22 | 北京交通大学 | Link switching method and system in wireless communication network |
| CN107580325A (en) * | 2017-08-02 | 2018-01-12 | 上海斐讯数据通信技术有限公司 | WDS connection methods, WAP and terminal device |
| CN107708163A (en) * | 2017-09-18 | 2018-02-16 | 深圳市信锐网科技术有限公司 | A kind of roving link switching method, mobile terminal, network modules and storage medium |
| CN108476441A (en) * | 2016-12-30 | 2018-08-31 | 华为技术有限公司 | Cell switching method and terminal device |
| US10154455B1 (en) * | 2016-08-10 | 2018-12-11 | Mbit Wireless, Inc. | Method and apparatus for broadcast information transmission |
| CN111918352A (en) * | 2020-08-06 | 2020-11-10 | Oppo广东移动通信有限公司 | Cell switching method, device, terminal and storage medium |
| CN113423125A (en) * | 2021-05-28 | 2021-09-21 | 荣耀终端有限公司 | Method and device for cell reselection, handover or background search |
-
2021
- 2021-11-19 CN CN202111399648.7A patent/CN114125968B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110244887A1 (en) * | 1996-09-09 | 2011-10-06 | Tracbeam Llc | Locating a mobile station and applications therefor |
| CN1905708A (en) * | 2005-07-27 | 2007-01-31 | 恩益禧电子股份有限公司 | High-speed switching base station searching method and mobile communication terminal thereof |
| WO2007034461A2 (en) * | 2005-09-26 | 2007-03-29 | Koninklijke Philips Electronics N.V. | Multi-channel wireless systems having dynamic rendezvous channels |
| CN101145802A (en) * | 2007-10-24 | 2008-03-19 | 杭州华三通信技术有限公司 | A link switching method and device |
| CN101904200A (en) * | 2007-12-19 | 2010-12-01 | 摩托罗拉公司 | The proactive handoff procedures that is used for the network initiation of fast moving wireless devices |
| CN103686089A (en) * | 2013-12-19 | 2014-03-26 | 武汉虹信通信技术有限责任公司 | Train monitoring system based on WDS |
| CN104158580A (en) * | 2014-07-15 | 2014-11-19 | 清华大学 | Vehicular mobile communication method for strengthening mobile terminal signal |
| CN104602312A (en) * | 2015-01-30 | 2015-05-06 | 海信集团有限公司 | Wireless channel switching method and AP (Access Point) |
| CN105657771A (en) * | 2016-01-06 | 2016-06-08 | 广东欧珀移动通信有限公司 | Channel switching method, and terminal |
| CN105828397A (en) * | 2016-03-28 | 2016-08-03 | 维沃移动通信有限公司 | Wireless access point switching method and mobile terminal |
| US10154455B1 (en) * | 2016-08-10 | 2018-12-11 | Mbit Wireless, Inc. | Method and apparatus for broadcast information transmission |
| CN106454982A (en) * | 2016-10-19 | 2017-02-22 | 北京交通大学 | Link switching method and system in wireless communication network |
| CN108476441A (en) * | 2016-12-30 | 2018-08-31 | 华为技术有限公司 | Cell switching method and terminal device |
| CN107580325A (en) * | 2017-08-02 | 2018-01-12 | 上海斐讯数据通信技术有限公司 | WDS connection methods, WAP and terminal device |
| CN107708163A (en) * | 2017-09-18 | 2018-02-16 | 深圳市信锐网科技术有限公司 | A kind of roving link switching method, mobile terminal, network modules and storage medium |
| CN111918352A (en) * | 2020-08-06 | 2020-11-10 | Oppo广东移动通信有限公司 | Cell switching method, device, terminal and storage medium |
| CN113423125A (en) * | 2021-05-28 | 2021-09-21 | 荣耀终端有限公司 | Method and device for cell reselection, handover or background search |
Non-Patent Citations (2)
| Title |
|---|
| IEEE: ""ISO/IEC/IEEE International Standard - Information technology--Telecommunications and information exchange between systems Local and metropolitan area networks--Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications"", 《 IEEE STD 802.11-2012 (REVISION OF IEEE STD 802.11-2007)》 * |
| 康桂华;康鸿博: ""BRT车联网中基于切换邀请的多小区协作切换技术"", 《微处理机》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114885390A (en) * | 2022-06-02 | 2022-08-09 | 普联技术有限公司 | Wireless roaming method, device, electronic equipment and readable storage medium |
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