CN113055966B - Frequency band switching method, frequency band switching device and storage medium - Google Patents
Frequency band switching method, frequency band switching device and storage medium Download PDFInfo
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- CN113055966B CN113055966B CN202110262941.2A CN202110262941A CN113055966B CN 113055966 B CN113055966 B CN 113055966B CN 202110262941 A CN202110262941 A CN 202110262941A CN 113055966 B CN113055966 B CN 113055966B
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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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 disclosure relates to a frequency band switching method, a frequency band switching device and a storage medium. The frequency band switching method comprises the following steps: acquiring the signal intensity of the wireless client in a first frequency band, wherein the first frequency band is a frequency band used when the wireless client associates with the AP; determining the signal strength of the wireless client in a second frequency band in response to the signal strength of the wireless client in the first frequency band meeting a trigger condition, wherein the second frequency band is a frequency band which the wireless client can be associated with the AP but is not used; and switching the wireless client to the second frequency band in response to the signal strength of the wireless client in the second frequency band meeting a signal strength threshold. The wireless client side can be controlled to switch the frequency band at the AP side through the wireless client side switching method and device.
Description
Technical Field
The disclosure relates to the technical field of computer networks, and in particular relates to a frequency band switching method, a frequency band switching device and a storage medium.
Background
With the development of science and technology, wireless Access Points (APs) are known as a common network sharing device, and also have wide application prospects in various scenes of daily life. Wherein the AP is capable of providing multiple frequency bands for association by the wireless client.
In the related art, the wireless client can be controlled to perform frequency band switching, but the method cannot control the wireless client to automatically perform frequency band switching when detecting that a better frequency band exists in the current network environment.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a frequency band switching method, a frequency band switching device, and a storage medium.
According to a first aspect of an embodiment of the present disclosure, a frequency band switching method is provided, which is applied to a wireless access point AP, where the AP is associated with a wireless client, and the frequency band switching method includes:
acquiring the signal intensity of the wireless client in a first frequency band, wherein the first frequency band is a frequency band used when the wireless client associates with the AP; determining the signal strength of the wireless client in a second frequency band in response to the signal strength of the wireless client in the first frequency band meeting a trigger condition, wherein the second frequency band is a frequency band which the wireless client can be associated with the AP but is not used; and switching the wireless client to the second frequency band in response to the signal strength of the wireless client in the second frequency band meeting a signal strength threshold.
In one embodiment, before acquiring the signal strength of the wireless client in the first frequency band, the frequency band switching method further includes: determining that the wireless client is in an idle state.
In one embodiment, determining the signal strength of the wireless client in the second frequency band includes:
responding to the wireless client supporting wireless measurement, sending a wireless measurement request to the wireless client, and receiving a wireless measurement response fed back by the wireless client based on the wireless measurement request; and determining the signal strength of the second frequency band based on the signal strength included in the wireless measurement response.
In one embodiment, determining the signal strength of the wireless client in the second frequency band includes: and responding to the wireless client not supporting wireless measurement and/or not receiving wireless measurement response sent by the wireless client within preset time, and estimating the signal intensity of the second frequency band based on the corresponding relation between the frequency band and the signal intensity.
In one embodiment, the correspondence between the frequency band and the signal strength is predetermined as follows: responding to the access of the wireless client to the AP, and acquiring detection request information of the wireless client; based on the detection request information, determining client information of the wireless client, frequency band information which can be accessed by the wireless client and signal strength of the wireless client in each frequency band; based on the client information, the frequency band information and the signal intensity, training to obtain the corresponding relation between the frequency band corresponding to the client information and the signal intensity.
According to a second aspect of the embodiments of the present disclosure, there is provided a frequency band switching device, which is applied to a wireless access point AP, where the AP is associated with a wireless client, and the frequency band switching device includes:
the acquisition unit is used for acquiring the signal intensity of the wireless client in a first frequency band, wherein the first frequency band is a frequency band used when the wireless client associates with the AP; the determining unit is used for determining the signal intensity of the wireless client in a second frequency band in response to the signal intensity of the wireless client in the first frequency band meeting a triggering condition, wherein the second frequency band is a frequency band which the wireless client can be associated with the AP but is not used; and the switching unit is used for switching the wireless client to the second frequency band in response to the signal intensity of the wireless client in the second frequency band meeting a signal intensity threshold.
In one embodiment, the acquisition unit is further configured to: and before the signal intensity of the wireless client in the first frequency band is acquired, determining that the wireless client is in an idle state.
In one embodiment, the determining unit determines the signal strength of the wireless client in the second frequency band in the following manner: responding to the wireless client supporting wireless measurement, sending a wireless measurement request to the wireless client, and receiving a wireless measurement response fed back by the wireless client based on the wireless measurement request; and determining the signal strength of the second frequency band based on the signal strength included in the wireless measurement response.
In one embodiment, the determining unit determines the signal strength of the wireless client in the second frequency band in the following manner: and responding to the wireless client not supporting wireless measurement and/or not receiving wireless measurement response sent by the wireless client within preset time, and estimating the signal intensity of the second frequency band based on the corresponding relation between the frequency band and the signal intensity.
In one embodiment, the determining unit determines in advance a correspondence between the frequency band and the signal strength in the following manner: responding to the access of the wireless client to the AP, and acquiring detection request information of the wireless client; based on the detection request information, determining client information of the wireless client, frequency band information which can be accessed by the wireless client and signal strength of the wireless client in each frequency band; based on the client information, the frequency band information and the signal intensity, training to obtain the corresponding relation between the frequency band corresponding to the client information and the signal intensity.
According to a third aspect of the embodiments of the present disclosure, there is provided a frequency band switching apparatus, including:
a processor; a memory for storing processor-executable instructions;
wherein the processor is configured to: the method for switching frequency bands described in the first aspect or any implementation manner of the first aspect is executed.
According to a fourth aspect of the disclosed embodiments, there is provided a non-transitory computer readable storage medium, characterized in that instructions in the storage medium, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the frequency band switching method of the first aspect or any implementation manner of the first aspect.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: acquiring the signal intensity of the wireless client in the first frequency band, and determining the signal intensity of the wireless client in the second frequency band when the signal intensity of the wireless client in the first frequency band meets the triggering condition. And when the signal intensity of the wireless client in the second frequency band meets the signal intensity threshold, switching the wireless client to the second frequency band. The control of the wireless client frequency band switching through the AP is realized through the method and the device.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram illustrating a related art method for performing wireless client frequency band switching according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating a method of band switching according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a method of band switching according to an exemplary embodiment.
Fig. 4 is a flowchart illustrating a method of determining a correspondence between frequency bands and signal strengths according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating a band switching method according to an exemplary embodiment.
Fig. 6 is a flowchart illustrating a band switching mechanism according to an exemplary embodiment.
Fig. 7 is a block diagram of a frequency band switching device according to an exemplary embodiment.
Fig. 8 is a block diagram illustrating an apparatus for band switching according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The frequency band switching method provided by the embodiment of the disclosure can be applied to a frequency band switching scene. For example, the embodiment of the disclosure may be applied to a scenario in which a wireless client such as a mobile terminal associates with an AP and switches associated frequency bands.
In the related art, when a frequency band with better performance exists in the current network environment, a user is required to operate the wireless client to control the wireless client to switch to the frequency band. For example, as shown in fig. 1, there are 2.4G bands and 5G bands in the current network environment, and the wireless client accesses the 2.4G bands. When the wireless client is in the coverage range of the 5G frequency band, the user can control the wireless client to switch to the 5G frequency band by operating the wireless client. In the related art, the wireless client cannot be controlled to switch the frequency band by the AP.
In view of this, the embodiments of the present disclosure provide a frequency band switching method, when detecting that there is a better frequency band and the signal strength of the wireless client in the frequency band is sufficient, controlling the wireless client to use the frequency band to associate with the AP.
Fig. 2 is a flowchart illustrating a band switching method according to an exemplary embodiment, which is used for an AP, as shown in fig. 1, and includes the following steps.
In step S11, the signal strength of the wireless client in a first frequency band is obtained, where the first frequency band is a frequency band used when the wireless client associates with the AP.
In step S12, in response to the signal strength of the wireless client in the first frequency band meeting the trigger condition, the signal strength of the wireless client in a second frequency band, where the second frequency band is a frequency band that the wireless client can associate with the AP but is not used, is determined.
In the embodiment of the disclosure, a signal strength threshold value of triggering frequency band switching of the wireless client in the first frequency band may be set. When the signal intensity of the wireless client in the first frequency band exceeds the signal intensity threshold value of the first frequency band, the wireless client is judged to currently meet the triggering condition for triggering the frequency band switching.
Note that, the signal strength of the first frequency band may be an uplink signal strength of the first frequency band, but is not limited thereto.
In step S13, the wireless client is switched to the second frequency band in response to the signal strength of the wireless client in the second frequency band meeting the signal strength threshold.
Note that, the signal strength of the second frequency band may be the downlink signal strength of the second frequency band, but is not limited thereto. The signal strength threshold may be the same as or different from the signal strength threshold for triggering the frequency band switching in the first frequency band, but is not limited thereto.
According to the frequency band switching method provided by the embodiment of the disclosure, the signal intensity of the wireless client is obtained, when the fact that the better frequency band exists for the wireless client to associate is determined, the wireless client is controlled to switch to the frequency band through the AP, and the purpose of controlling the wireless client to switch the frequency band at the AP is achieved.
In the embodiment of the disclosure, the implementation process of switching the AP control band can be implemented when the wireless client is in an idle state, so as to avoid network interruption caused by the current service of the wireless client.
In an example, when it is detected that the uplink traffic and the downlink traffic of the wireless client are not increased within a preset time, it is determined that the wireless client is in an idle state. And when the wireless client is determined to be in the idle state, acquiring the signal strength of the wireless client in the first frequency band.
In the frequency band switching method provided by the embodiment of the disclosure, the signal intensity of the wireless client in the second frequency band can be determined in a wireless measurement mode, and/or the signal intensity of the wireless client in the second frequency band can be determined through the corresponding relation between the frequency band and the signal intensity. Two ways of determining the signal strength of the wireless client in the second frequency band will be further described below.
Fig. 3 is a flowchart of a frequency band switching method according to an exemplary embodiment, and as shown in fig. 3, an implementation process of step S23 in the image fusion method provided in the embodiment of the present disclosure is similar to the S13 implementation method shown in fig. 1, and will not be repeated here.
In step S22a, in response to the wireless client supporting wireless measurement, a wireless measurement request is sent to the wireless client, a wireless measurement response fed back by the wireless client based on the wireless measurement request is received, and the signal strength of the second frequency band is determined based on the signal strength included in the wireless measurement response.
In the embodiment of the disclosure, for a wireless client supporting wireless measurement, a wireless measurement request may be sent to the wireless client through an AP, and a wireless measurement response fed back by the wireless client according to the wireless measurement request is received, so that signal strength information of the wireless client in a second frequency band is extracted from the wireless measurement response of the wireless client.
In step S22b, in response to the wireless client not supporting wireless measurement and/or not receiving a wireless measurement response sent by the wireless client within a predetermined time, estimating the signal strength of the second frequency band based on the correspondence between the frequency band and the signal strength.
In the embodiment of the disclosure, there is a case that the AP does not receive the wireless measurement response sent by the wireless client within a predetermined time. For example, when the wireless client starts the power saving mode, the wireless client cannot receive the wireless measurement request sent by the AP, and cannot feed back a wireless measurement response according to the wireless measurement request. For another example, when there is wireless interference in the network environment, the AP cannot receive the wireless measurement response fed back by the wireless client. In addition, there are cases where the wireless client does not support wireless measurement. In an example, for a wireless client that does not support wireless measurement and/or a wireless client that does not receive a wireless measurement response by an AP, the signal strength of the wireless client in the second frequency band may be estimated by detecting the signal strength of the wireless client in the current associated frequency band according to the correspondence between the frequency band and the signal strength.
According to the frequency band switching method provided by the embodiment of the disclosure, the intensity of the wireless client supporting the wireless measurement in the second frequency band is determined through the wireless measurement, and the signal intensity of the wireless client which does not support the wireless measurement and/or cannot feed back the wireless measurement response to the AP in the second frequency band is determined through the corresponding relation between the frequency band and the signal intensity. The method has higher stability than a method for determining the signal strength of the wireless client in the second frequency band through a single mode. Further, the success rate of controlling the wireless client to switch the frequency band through the AP is improved.
In the frequency band switching method provided by the embodiment of the present disclosure, the correspondence between the frequency band and the signal strength needs to be predetermined, and the following description is made on how to determine the correspondence between the frequency band and the signal strength in advance.
Fig. 4 is a flowchart illustrating a method of determining a correspondence between frequency bands and signal strengths according to an exemplary embodiment.
In step S31, in response to the wireless client accessing the AP, probe request information of the wireless client is acquired.
In step S32, based on the probe request information, the client information of the wireless client, the frequency band information that the wireless client can access, and the signal strength of the wireless client in each frequency band are determined.
In step S33, based on the client information, the frequency band information, and the signal strength, the correspondence between the frequency band corresponding to the client information and the signal strength is obtained through training.
In the embodiment of the disclosure, probe request information sent by a wireless client is obtained through an AP, and client information of the wireless client, frequency band information which can be accessed by the wireless client and signal strength of the wireless client in each frequency band are extracted, wherein the client information of the wireless client, the frequency band information which can be accessed by the wireless client and the signal strength of the wireless client in each frequency band are included in the probe request information. And carrying out learning training according to the extracted information to obtain the corresponding relation between the frequency band and the signal intensity.
Fig. 5 is a block diagram of a frequency band switching method according to an exemplary embodiment, and as shown in fig. 5, the method includes a probe request collection module, a signal strength conversion parameter learning module, a database module, an associated client monitoring module, and a frequency band switching module. The detection request collection module is used for collecting detection request information of the wireless client, providing information such as signal strength, frequency range, client and the like for the signal strength conversion parameter learning module, and providing information such as client information and client supporting frequency range and the like for the database for storage. The signal intensity conversion parameter learning module calculates the corresponding relation between the frequency band and the signal intensity according to the frequency band information which can be accessed by the wireless client and the signal intensity of the wireless client in each frequency band, and stores the corresponding relation between the frequency band and the signal intensity in the database. The database module is used for storing information such as client information of the wireless client, frequency band information which can be accessed by the wireless client, corresponding relation between the frequency band and signal intensity and the like. The associated client monitoring module is used for determining whether the wireless client supports wireless measurement and whether the wireless client supports a basic service set switching management function when being associated, and storing the information into a database. And aiming at the wireless client terminal supporting basic service set switching management, monitoring whether the state of the wireless client terminal is in an idle state, and calling a frequency band switching module to execute frequency band switching when the wireless client terminal is in the idle state. The frequency band switching module calculates whether the signal intensity of the wireless client in the target frequency band meets the switching condition according to the signal intensity conversion relation or the self-learning intensity conversion parameter between different frequency bands preset by the experience measurement data, and executes frequency band switching on the wireless client in the idle state.
In the embodiment of the disclosure, when the triggering switching mechanism is satisfied to perform the frequency band switching, different frequency band switching mechanisms can be adopted to control the wireless client to switch to the target frequency band, namely, the second frequency band according to whether the wireless client supports wireless measurement, whether the AP receives information such as wireless measurement response of the wireless client, and the like.
Fig. 6 is a flowchart of a band switching mechanism, as shown in fig. 6, according to an exemplary embodiment. When the wireless client meets the switching trigger condition, judging whether the wireless client supports wireless measurement, if the wireless client supports wireless measurement, the AP initiates a measurement request to the wireless client and waits for the wireless client to send a measurement response. After receiving the measurement response sent by the wireless client, the AP analyzes the measurement response and extracts the downlink signal strength of the target frequency band in the measurement response. If the signal strength of the target frequency band meets the requirements, a basic service set (Basic Service Set, BSS) handoff management (Transition Management) mechanism is used to handoff the wireless client to the target frequency band. When the AP does not receive a measurement response message in a preset time or the client does not support wireless measurement, according to a preset frequency band signal intensity conversion relation or a learned wireless signal intensity conversion relation among different frequency bands. And the signal intensity of the wireless client on other frequency bands is calculated according to the signal intensity of the current wireless client on the associated frequency band. When the estimated signal intensity of the wireless client on the target frequency band meets the requirement, switching the wireless client to the target frequency band by using a basic service set switching management mechanism.
According to the frequency band switching method provided by the embodiment of the disclosure, when the signal intensity of the wireless client in the first frequency band is determined to meet the triggering condition for triggering frequency band switching, the signal intensity of the wireless client in the second frequency band is determined. After the signal intensity of the wireless client in the second frequency band is determined to meet the triggering condition for triggering the frequency band switching, the associated frequency band of the wireless client is switched to the second frequency band through the AP, so that the wireless client is controlled to switch the frequency band through the AP.
Based on the same conception, the embodiment of the disclosure also provides a frequency band switching device.
It can be understood that, in order to implement the above-mentioned functions, the frequency band switching device provided in the embodiments of the present disclosure includes a hardware structure and/or a software module that perform each function. The disclosed embodiments may be implemented in hardware or a combination of hardware and computer software, in combination with the various example elements and algorithm steps disclosed in the embodiments of the disclosure. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure.
Fig. 7 is a block diagram of a frequency band switching device according to an exemplary embodiment. Referring to fig. 7, the apparatus 100 includes an acquisition unit 101, a determination unit 102, and a switching unit 103.
The acquiring unit 101 is configured to acquire a signal strength of the wireless client in a first frequency band, where the first frequency band is a frequency band used when the wireless client associates with the AP. And the determining unit 102 is used for determining the signal intensity of the wireless client in a second frequency band in response to the signal intensity of the wireless client in the first frequency band meeting the triggering condition, wherein the second frequency band is a frequency band which can be associated with the AP by the wireless client but is not used. And a switching unit 103, responsive to the signal strength of the wireless client in the second frequency band meeting the signal strength threshold, switching the wireless client to the second frequency band.
In one embodiment, the obtaining unit 101 is further configured to: before the signal intensity of the wireless client in the first frequency band is acquired, the wireless client is determined to be in an idle state.
In one embodiment, the determining unit 102 determines the signal strength of the wireless client in the second frequency band in the following manner: and responding to the wireless client supporting wireless measurement, sending a wireless measurement request to the wireless client, and receiving a wireless measurement response fed back by the wireless client based on the wireless measurement request. The signal strength of the second frequency band is determined based on the signal strength included in the wireless measurement response.
In one embodiment, the determining unit 102 determines the signal strength of the wireless client in the second frequency band in the following manner: and responding to the fact that the wireless client does not support wireless measurement and/or does not receive wireless measurement response sent by the wireless client within a preset time, and estimating the signal intensity of the second frequency band based on the corresponding relation between the frequency band and the signal intensity.
In one embodiment, the determining unit 102 determines in advance the correspondence between the frequency band and the signal strength in the following manner: and responding to the access of the wireless client to the AP, and acquiring the detection request information of the wireless client. And determining the client information of the wireless client, the frequency band information which can be accessed by the wireless client and the signal intensity of the wireless client in each frequency band based on the detection request information. Based on the client information, the frequency band information and the signal intensity, training to obtain the corresponding relation between the frequency band corresponding to the client information and the signal intensity.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 8 is a block diagram illustrating an apparatus 200 for band switching according to an exemplary embodiment. For example, apparatus 200 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.
Referring to fig. 8, the apparatus 200 may include one or more of the following components: a processing component 202, a memory 204, a power component 206, a multimedia component 208, an audio component 210, an input/output (I/O) interface 212, a sensor component 214, and a communication component 216.
The processing component 202 generally controls overall operation of the apparatus 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 202 can include one or more modules that facilitate interactions between the processing component 202 and other components. For example, the processing component 202 may include a multimedia module to facilitate interaction between the multimedia component 208 and the processing component 202.
The memory 204 is configured to store various types of data to support operations at the apparatus 200. Examples of such data include instructions for any application or method operating on the device 200, contact data, phonebook data, messages, pictures, videos, and the like. The memory 204 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power component 206 provides power to the various components of the device 200. The power components 206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 200.
The multimedia component 208 includes a screen between the device 200 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 208 includes a front-facing camera and/or a rear-facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 200 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 210 is configured to output and/or input audio signals. For example, the audio component 210 includes a Microphone (MIC) configured to receive external audio signals when the device 200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 204 or transmitted via the communication component 216. In some embodiments, audio component 210 further includes a speaker for outputting audio signals.
The I/O interface 212 provides an interface between the processing assembly 202 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 214 includes one or more sensors for providing status assessment of various aspects of the apparatus 200. For example, the sensor assembly 214 may detect the on/off state of the device 200, the relative positioning of the components, such as the display and keypad of the device 200, the sensor assembly 214 may also detect a change in position of the device 200 or a component of the device 200, the presence or absence of user contact with the device 200, the orientation or acceleration/deceleration of the device 200, and a change in temperature of the device 200. The sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 214 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 216 is configured to facilitate communication between the apparatus 200 and other devices in a wired or wireless manner. The device 200 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 204, including instructions executable by processor 220 of apparatus 200 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that "connected" includes both direct connection where no other member is present and indirect connection where other element is present, unless specifically stated otherwise.
It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (6)
1. The frequency band switching method is characterized by being applied to a wireless Access Point (AP), wherein the AP is associated with a wireless client, and the frequency band switching method comprises the following steps:
acquiring the signal intensity of the wireless client in a first frequency band, wherein the first frequency band is a frequency band used when the wireless client associates with the AP;
determining the signal strength of the wireless client in a second frequency band in response to the signal strength of the wireless client in the first frequency band meeting a trigger condition, wherein the second frequency band is a frequency band which the wireless client can be associated with the AP but is not used;
switching the wireless client to the second frequency band in response to the signal strength of the wireless client in the second frequency band meeting a signal strength threshold;
the frequency band switching method further comprises the following steps of:
determining that the wireless client is in an idle state;
the determining the signal strength of the wireless client in the second frequency band includes:
responding to the wireless client supporting wireless measurement, sending a wireless measurement request to the wireless client, receiving a wireless measurement response fed back by the wireless client based on the wireless measurement request, and determining the signal strength of the second frequency band based on the signal strength included in the wireless measurement response;
and responding to the wireless client not supporting wireless measurement and/or not receiving wireless measurement response sent by the wireless client within preset time, and estimating the signal intensity of the second frequency band based on the corresponding relation between the frequency band and the signal intensity.
2. The frequency band switching method according to claim 1, wherein the correspondence between the frequency band and the signal strength is predetermined by:
responding to the access of the wireless client to the AP, and acquiring detection request information of the wireless client;
based on the detection request information, determining client information of the wireless client, frequency band information which can be accessed by the wireless client and signal strength of the wireless client in each frequency band;
based on the client information, the frequency band information and the signal intensity, training to obtain the corresponding relation between the frequency band corresponding to the client information and the signal intensity.
3. A frequency band switching device, applied to a wireless access point AP, where the AP is associated with a wireless client, the frequency band switching device comprising:
the acquisition unit is used for acquiring the signal intensity of the wireless client in a first frequency band, wherein the first frequency band is a frequency band used when the wireless client associates with the AP;
the determining unit is used for determining the signal intensity of the wireless client in a second frequency band in response to the signal intensity of the wireless client in the first frequency band meeting a trigger condition, wherein the second frequency band is a frequency band which the wireless client can be associated with the AP but is not used, and the determining unit is used for determining the signal intensity of the wireless client in the second frequency band in the following manner:
responding to the wireless client supporting wireless measurement, sending a wireless measurement request to the wireless client, receiving a wireless measurement response fed back by the wireless client based on the wireless measurement request, and determining the signal strength of the second frequency band based on the signal strength included in the wireless measurement response;
responding to the wireless client not supporting wireless measurement and/or not receiving wireless measurement response sent by the wireless client within preset time, and estimating the signal intensity of the second frequency band based on the corresponding relation between the frequency band and the signal intensity;
a switching unit, configured to switch the wireless client to the second frequency band in response to the signal strength of the wireless client in the second frequency band meeting a signal strength threshold;
the acquisition unit is further configured to:
and before the signal intensity of the wireless client in the first frequency band is acquired, determining that the wireless client is in an idle state.
4. A frequency band switching apparatus according to claim 3, wherein the determining unit determines in advance a correspondence relationship between the frequency band and the signal strength in such a manner that:
responding to the access of the wireless client to the AP, and acquiring detection request information of the wireless client;
based on the detection request information, determining client information of the wireless client, frequency band information which can be accessed by the wireless client and signal strength of the wireless client in each frequency band;
based on the client information, the frequency band information and the signal intensity, training to obtain the corresponding relation between the frequency band corresponding to the client information and the signal intensity.
5. A frequency band switching apparatus, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: the frequency band switching method of any one of claims 1 to 2 is performed.
6. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor of a wireless access point, enable the wireless access point to perform the frequency band switching method of any one of claims 1 to 2.
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