WO2020237703A1 - Communication mode switching method and device, storage medium, processor, and system - Google Patents

Abstract

Provided by the present disclosure are a communication mode switching method and device, a storage medium, a processor and a system. The method comprises: waking up a first communication component on a first communication device according to a preset beacon interval; monitoring a beacon frame from a second communication device through a first communication component, wherein the beacon frame at least carries a first indication information, and the first indication information is used for indicating whether downlink data to be sent to the first communication device is stored in the second communication device; and switching between a first communication mode and a second communication mode according to the first indication information. The present disclosure solves the technical problem in the correlation technique that the WiFi component and the BLE component are integrated on a same chip and work alternately in a time division multiplexing manner, in this case, the operation complexity of cooperative control of a WiFi component and a BLE component is relatively high and a relatively high packet loss rate is easily caused.

Description

Communication mode switching method, device, storage medium, processor and system

Cross reference

This disclosure is filed based on a Chinese patent application with an application number of 201910460101.X and an application date of 2019-05-29, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this disclosure.

Technical field

The present disclosure relates to the field of communications, and in particular, to a method, device, storage medium, processor, and system for switching communication modes.

Background technique

Wireless Fidelity (WiFi) is a wireless LAN technology created in the IEEE 802.11 standard. It connects to the Internet through radio waves and is usually set as a wireless router. The effective range of the radio wave coverage of the wireless router can be connected to the network by means of WiFi connection.

Bluetooth Low Energy (BLE) is a personal area network technology. Compared with classic Bluetooth, BLE significantly reduces power consumption and cost while maintaining the same communication range.

At present, electronic devices provided in related technologies usually have both WiFi components and BLE components, and their configuration methods usually include the following two:

Method 1: The WiFi component and the BLE component are respectively set on two different chips, and each chip corresponds to an antenna and works independently.

In this way, the WiFi component and the BLE component do not need to work together and do not interfere with each other, so the communication performance is good. However, the disadvantage of this method is that the hardware cost of the dual-chip structure is relatively high.

Method 2: The WiFi component and the BLE component are integrated on the same chip and share the same antenna.

In this mode, the WiFi component and the BLE component work alternately in a time-division multiplexing mode. Therefore, the hardware cost of the single integrated chip structure adopted in this mode is low. However, the disadvantage of this method is that: since the WiFi component and the BLE component work alternately in a time-division multiplexing manner, the requirements for cooperative control of the WiFi component and the BLE component are extremely high, otherwise a higher packet loss rate will be caused.

In view of the above-mentioned problems, no effective solutions have yet been proposed.

Summary of the invention

At least some of the embodiments of the present disclosure provide a communication mode switching method, device, storage medium, processor, and system to at least solve the problem of integrating a WiFi component and a BLE component on the same chip in related technologies, using time-sharing multiplexing In the case of working alternately, it is easy to cause high operational complexity of the cooperative control of the WiFi component and the BLE component, and it is easy to cause technical problems of high packet loss rate.

According to one of the embodiments of the present disclosure, a communication mode switching method is provided, including:

Wake up the first communication component on the first communication device according to the preset beacon interval, wherein the first communication component communicates with the external communication device through the second communication device in the first communication mode, and the second communication device is used to establish a wireless Local area network; listen to the beacon frame from the second communication device through the first communication component, wherein the beacon frame carries at least first indication information, and the first indication information is used to indicate whether the second communication device is stored to be sent Downlink data to the first communication device; switch between the first communication mode and the second communication mode according to the first instruction information, wherein the second communication component on the first communication device is in the second communication mode with the third communication mode Point-to-point communication between communication devices.

Optionally, switching between the first communication mode and the second communication mode according to the first instruction information includes: determining, according to the first instruction information, that the second communication device does not store downlink data to be sent to the first communication device; controlling The first communication component enters the dormant state, and controls the second communication component to enter the wake-up state, so that the first communication device is in the second communication mode.

Optionally, switching between the first communication mode and the second communication mode according to the first instruction information includes: determining, according to the first instruction information, that the second communication device stores downlink data to be sent to the first communication device; A communication component remains in the awake state, and controls the second communication component to enter the dormant state, so that the first communication device is in the first communication mode.

Optionally, after switching between the first communication mode and the second communication mode according to the first instruction information, the method further includes: sending a first empty data frame to the second communication device, wherein the first empty data frame carries There is second indication information, the second indication information is identified as a first value, and the first value is used to indicate that the first communication component is in an awake state; the downlink data from the second communication device is received through the first communication component; according to the downlink data Perform the corresponding control operation.

Optionally, after sending the first empty data frame to the second communication device, the method further includes: controlling the first communication component to enter the dormant state and controlling the second communication component to enter the awake state when it is determined that the downlink data is received. So that the first communication device is in the second communication mode; sending a second empty data frame to the second communication device, wherein the second empty data frame carries second indication information, and the second indication information is identified as a second value, The second value is used to indicate that the first communication component is in a sleep state.

Optionally, the above method further includes: listening to a broadcast frame from a third communication device through the second communication component, wherein the broadcast frame carries a control instruction; and executing corresponding control operations according to the control instruction.

Optionally, listening to the broadcast frame through the second communication component includes: listening to the broadcast frame through the second communication component via a preset channel, wherein the preset channel is selected from a plurality of candidate channels and is connected by the first communication device and The third communication device is negotiated and determined in advance.

Optionally, the beacon frame also carries an updated beacon interval. After listening to the beacon frame through the first communication component, the method further includes: adjusting the preset beacon interval to the updated beacon interval, and according to The updated beacon interval wakes up the first communication component again.

According to one of the embodiments of the present disclosure, there is also provided a communication mode switching device, including:

The wake-up module is set to wake up the first communication component on the first communication device according to the preset beacon interval, wherein the first communication component communicates with the external communication device through the second communication device in the first communication mode, and the second communication The device is used to build a wireless local area network; the listening module is configured to listen to the beacon frame from the second communication device through the first communication component, wherein the beacon frame carries at least the first indication information, and the first indication information is used for Instructing the second communication device whether the downlink data to be sent to the first communication device is stored; the switching module is configured to switch between the first communication mode and the second communication mode according to the first instruction information, wherein the first communication The second communication component on the device performs point-to-point communication with the third communication device in the second communication mode.

Optionally, the switching module includes: a first determining unit configured to determine, according to the first indication information, that there is no downlink data to be sent to the first communication device stored on the second communication device; the first control unit is configured to control the first communication device The component enters the dormant state and controls the second communication component to enter the wake-up state, so that the first communication device is in the second communication mode.

Optionally, the switching module includes: a second determining unit configured to determine, according to the first indication information, that the second communication device stores downlink data to be sent to the first communication device; the second control unit is configured to control the first communication component Keep the awake state and control the second communication component to enter the sleep state so that the first communication device is in the first communication mode.

Optionally, the above apparatus further includes: a first sending module configured to send a first empty data frame to the second communication device, wherein the first empty data frame carries second indication information, and the second indication information is identified as The first value, the first value is used to indicate that the first communication component is in an awake state; the receiving module is set to receive the downlink data from the second communication device through the first communication component; the execution module is set to execute the corresponding Control operation.

Optionally, the above-mentioned device further includes: a control module configured to control the first communication component to enter the sleep state and control the second communication component to enter the wake-up state when it is determined that the downlink data reception is complete, so that the first communication device is The second communication mode; the second sending module is configured to send a second empty data frame to the second communication device, wherein the second empty data frame carries second indication information, and the second indication information is identified as a second value, The second value is used to indicate that the first communication component is in a sleep state.

Optionally, the listening module is further configured to listen to the broadcast frame from the third communication device through the second communication component, wherein the broadcast frame carries a control instruction; and the corresponding control operation is executed according to the control instruction.

Optionally, the listening module is configured to listen to the broadcast frame via a preset channel through the second communication component, wherein the preset channel is selected from a plurality of candidate channels and pre-defined by the first communication device and the third communication device. Determined by negotiation.

Optionally, the beacon frame also carries an updated beacon interval, and the above-mentioned apparatus further includes: a processing module configured to adjust the preset beacon interval to the updated beacon interval, and according to the updated beacon interval Wake up the first communication component again at intervals.

According to one of the embodiments of the present disclosure, a storage medium is further provided. The storage medium includes a stored program, wherein the device where the storage medium is located is controlled to execute any one of the communication mode switching methods described above when the program is running.

According to one of the embodiments of the present disclosure, there is also provided a processor, which is used to run a program, wherein any one of the communication mode switching methods described above is executed when the program is running.

According to one of the embodiments of the present disclosure, there is also provided a communication mode switching system, including: a first communication device, a second communication device, and a third communication device, wherein the first communication device includes the above-mentioned communication mode switching device.

In at least some of the embodiments of the present disclosure, the first communication component on the first communication device is awakened at a preset beacon interval, and the first communication component communicates with the external communication device through the second communication device in the first communication mode , The second communication device is used to establish a wireless local area network, through the first communication component to listen to the beacon frame from the second communication device, the beacon frame carries at least the first indication information, the first indication information It is used to indicate whether downlink data to be sent to the first communication device is stored on the second communication device, and to switch between the first communication mode and the second communication mode according to the first indication information. The second communication component performs point-to-point communication with the third communication device in the second communication mode, achieving the goal of optimizing the cooperative working logic of the first communication component (for example: WiFi component) and the second communication component (for example: BLE component). This achieves the technical effect of improving the communication stability of electronic devices (especially the stability of WiFi), reducing the operational complexity of the cooperative control of WiFi components and BLE components, and the packet loss rate caused by time-division multiplexing, and then solving In related technologies, when the WiFi component and the BLE component are integrated on the same chip, and the time-sharing multiplexing method is used to alternately work, the operation complexity of the cooperative control of the WiFi component and the BLE component is likely to be high, and it is easy to cause The technical problem of higher packet loss rate.

Description of the drawings

The drawings described here are used to provide a further understanding of the present disclosure and constitute a part of the present application. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute an improper limitation of the present disclosure. In the attached picture:

Figure 1 is a schematic structural diagram of a communication mode switching system according to one of the embodiments of the present disclosure;

Fig. 2 is a flowchart of a communication mode switching method according to one of the embodiments of the present disclosure;

FIG. 3 is a schematic diagram of timing control of a WiFi component and a BLE component according to an optional embodiment of the present disclosure;

Fig. 4 is a flowchart of a method for processing broadcast frames according to one of the embodiments of the present disclosure;

Fig. 5 is a working flow chart of the communication mode switching system according to one of the alternative embodiments of the present disclosure;

Fig. 6 is a structural block diagram of a communication mode switching device according to one of the embodiments of the present disclosure;

Fig. 7 is a structural block diagram of a communication mode switching device according to one of the alternative embodiments of the present disclosure;

Fig. 8 is a structural block diagram of an apparatus for processing broadcast frames according to one of the embodiments of the present disclosure.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only They are a part of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of the present disclosure.

It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

According to one of the embodiments of the present disclosure, an embodiment of a communication mode switching system is provided. The communication mode switching system includes: a first communication device, a second communication device, and a third communication device. The first communication device is provided with a communication module, where the communication module includes: a first communication component and a second communication component. The second communication device is used to establish a wireless local area network. In the first communication mode, the first communication component communicates with an external communication device (such as a mobile device control terminal such as a smart phone, a cloud server) through a second communication device. The second communication component on the first communication device performs point-to-point communication with the third communication device in the second communication mode. That is, the first communication device and the third communication device form a wireless personal area network in the second communication mode.

In an alternative embodiment, FIG. 1 is a schematic structural diagram of a communication mode switching system according to one of the embodiments of the present disclosure. As shown in FIG. 1, the first communication device is a workstation (STATION), and the second communication device is WiFi. The access point (AP), and the third communication device is a BLE controller. The first communication mode is the WiFi working mode, and the second communication mode is the BLE working mode. The first communication component included in the communication module on the STATION is a WiFi component, and the second communication component included in the communication module on the STATION is a BLE component.

Taking the smart home application scenario as an example, the above-mentioned workstation may further be smart household appliances, such as smart TVs, smart refrigerators, smart desk lamps, smart air conditioners, and so on. The aforementioned WiFi AP may further be a wireless router. The above-mentioned BLE controller may further be a remote controller of a smart home appliance.

Taking the first communication device as a smart home appliance as an example, the smart home appliance may include one or more processors (the processor may include but is not limited to a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) ) Chip, microprocessor (MCU) or programmable logic device (FPGA) and other processing devices) and memory used to store data. Optionally, the above-mentioned smart home appliance may also include a communication module for communication functions and input and output devices. A person of ordinary skill in the art can understand that the foregoing description of the structure is merely illustrative, and does not limit the structure of the foregoing smart home appliance. For example, the smart home appliance may also include more or fewer components than the foregoing structural description, or have a different configuration from the foregoing structural description.

The memory can be used to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the communication mode switching method in the embodiment of the present disclosure. The processor executes various computer programs by running the computer programs stored in the memory. Function application and data processing, that is, realize the above-mentioned switching method of communication mode. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely provided with respect to the processor, and these remote memories may be connected to the smart home appliance through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

The WiFi component in the communication module includes a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.

Similarly, taking the third communication device as the remote controller of a smart home appliance as an example, the remote controller may include one or more processors (the processor may include but is not limited to a central processing unit (CPU), a graphics processing unit (GPU), Digital signal processing (DSP) chip, microprocessor (MCU) or programmable logic device (FPGA) and other processing devices) and memory for storing data. Optionally, the aforementioned remote controller may also include a communication component for point-to-point communication and an input and output device. A person of ordinary skill in the art can understand that the foregoing description of the structure is merely illustrative, and does not limit the structure of the foregoing remote control. For example, the remote controller may also include more or fewer components than the foregoing structural description, or have a configuration different from the foregoing structural description.

The memory can be used to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the broadcast frame processing method in the embodiments of the present disclosure. The processor executes various computer programs by running the computer programs stored in the memory. Functional application and data processing, that is, the above-mentioned broadcast frame processing method. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely provided with respect to the processor, and these remote memories may be connected to the remote controller through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

According to one of the embodiments of the present disclosure, an embodiment of a communication mode switching method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions And, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.

In this embodiment, a communication mode switching method running on the above-mentioned workstation is provided. FIG. 2 is a flowchart of the communication mode switching method according to one of the embodiments of the present disclosure. As shown in FIG. 2, the method includes the following step:

Step S20, wake up the first communication component on the first communication device according to the preset beacon interval, wherein the first communication component communicates with the external communication device through the second communication device in the first communication mode, and the second communication device uses To build a wireless local area network;

Step S21: Listen to the beacon frame from the second communication device through the first communication component, where the beacon frame carries at least first indication information, and the first indication information is used to indicate whether the second communication device is Downlink data sent to the first communication device;

Step S22, switching between the first communication mode and the second communication mode according to the first instruction information, wherein the second communication component on the first communication device performs point-to-point communication with the third communication device in the second communication mode communication.

Through the above steps, the first communication component on the first communication device can be awakened according to the preset beacon interval. The first communication component communicates with the external communication device through the second communication device in the first communication mode. The communication device is used to establish a wireless local area network. The first communication component listens to a beacon frame from a second communication device. The beacon frame carries at least first indication information, and the first indication information is used to indicate 2. Whether downlink data to be sent to the first communication device is stored on the communication device, and switching between the first communication mode and the second communication mode according to the first instruction information, the second communication component on the first communication device is The point-to-point communication with the third communication device in the second communication mode achieves the goal of optimizing the cooperative working logic of the first communication component (for example: WiFi component) and the second communication component (for example: BLE component), thereby achieving improvement The communication stability of electronic devices (especially the stability of WiFi), reduces the operational complexity of the cooperative control of WiFi components and BLE components, and the technical effect of packet loss rate caused by time-division multiplexing, thereby solving related technologies. When the WiFi component and the BLE component are integrated on the same chip and work alternately by time-division multiplexing, the cooperative control of the WiFi component and the BLE component is likely to have high operational complexity and cause high loss. The technical problem of packet rate.

Considering that in the related technology, when the WiFi component and the BLE component alternately work in a time-division multiplexing manner, if the WiFi component is in a working state, the BLE component is in a sleep state. Similarly, if the BLE component is in a working state, the WiFi component is in a sleep state. Therefore, the use of time-division multiplexing will inevitably lead to a higher packet loss rate, and it is also easy to cause disconnection. Taking the above-mentioned preset beacon interval of 100ms as an example, according to the time-sharing multiplexing method of WiFi components and BLE components used in related technologies, within the first 100ms time range, the WiFi components are in working state and the BLE components are in sleep mode status. In the second 100ms time range, the BLE component is in the working state, and the WiFi component is in the dormant state. Such reciprocating and alternate execution will not be repeated here.

For this reason, the power save mode of IEEE 802.11 is used and the low power consumption protocol of the WiFi component is used to shorten the working time of the WiFi component as much as possible, and most of the time is allocated to the BLE component.

IEEE 802.11 power save mode is a standard WiFi low-power protocol. Under this agreement, WiFi STATION enters the power saving mode and turns off the RF module when there is no data transmission and reception. STATION is periodically woken up according to the AP's beacon interval (beacon interval) to listen to the AP's beacon frame. The AP's beacon frame is essentially a broadcast frame periodically sent by the AP, where the information carried in the broadcast frame may include, but is not limited to: the name of the AP (for example: Service Set Identifier (SSID for short)), Encryption method, whether there is a flag (flag) of each STATION cache data associated with the AP on the AP, for example: the flag value in the traffic indication map (TIM for short) (equivalent to the first indication information) .

Taking STATION1 in Figure 1 as an example, STATION1 wakes up the WiFi components on STATION1 at an interval of 100ms. The WiFi component communicates with external communication devices (such as mobile device control terminals such as smart phones, cloud servers) through WiFi AP in WiFi working mode. STATION 1 can listen to beacon frames from WiFi AP through WiFi components. The beacon frame carries at least first indication information, and the first indication information is used to indicate whether downlink data to be sent to STATION 1 is stored on the WiFi AP. STATION 1 switches between the WiFi working mode and the BLE working mode according to the first instruction information. The BLE component on STATION 1 performs point-to-point communication with the BLE controller 1 in the BLE working mode.

Figure 3 is a schematic diagram of the timing control of the WiFi component and the BLE component according to one of the optional embodiments of the present disclosure. As shown in Figure 3, through the IEEE 802.11 power save mode, the WiFi component on the STATION can be awakened every 100 ms. The WiFi component set on the STATION receives the beacon frame, and then immediately enters the sleep state, so as to achieve the purpose of saving power consumption by the WiFi component. At the same time, since the AP will buffer the downlink data sent to STATION, the downlink data sent to STATION will not be lost. In addition, by using the technical principles of IEEE 802.11 power save mode, when the RF module of the WiFi component is turned off, it is switched to the BLE component working mode, thereby ensuring that the electronic device is in the BLE working mode more than 90% of the time, and only in It is in WiFi working mode within a short period of time.

Optionally, in step S22, switching between the first communication mode and the second communication mode according to the first instruction information may include the following execution steps:

Step S220: Determine according to the first instruction information that there is no downlink data to be sent to the first communication device stored on the second communication device;

Step S221, controlling the first communication component to enter the dormant state, and controlling the second communication component to enter the awake state, so that the first communication device is in the second communication mode.

Since the downlink data to be sent to the STATION will be cached in the AP in advance, when the AP does not store the cached data of the STATION, you can set the TIM flag in the beacon frame to indicate that there is no cached data for the STATION. . TIM adopts a bitmap (Bitmap) structure to indicate whether there is any downlink data of each STATION associated with the AP cached on the AP. Each STATION uses the Tim field in the beacon frame to check the flag value at the corresponding position in the Bitmap to determine whether the corresponding downlink data is buffered on the AP.

Table 1 is an optional example of using the Bitmap in the TIM to indicate whether there is downlink data sent to the STATION buffer, as shown in Table 1:

Table 1

STATION NO.	Beacon	Bitmap
STATION 1	TIM flag 1	0
STATION 2	TIM flag 2	1
STATION 3	TIM flag 3	1
STATION 4	TIM flag 4	0
...	...	...
STATION n-1	TIM flag n-1	1
STATION n	TIM flag n	0

The Bitmap in the TIM can usually be set to a matrix of M rows×N columns (M and N are positive integers). Each TIM flag corresponds to a different STATION. Taking Table 1 as an example, STATION 1 corresponds to the TIM flag 1 of the Tim field in the beacon frame, STATION 2 corresponds to the TIM flag 2 of the Tim field in the beacon frame, and STATION 3 corresponds to the TIM flag 3 of the Tim field in the beacon frame... and so on until STATION n corresponds to the TIM flag n of the Tim field in the beacon frame. If the value of the TIM flag is 1, it means that the downlink data corresponding to the STATION is buffered on the AP; if the value of the TIM flag is 0, it means that the downlink data corresponding to the STATION is not buffered on the AP. When it is determined according to the value of TIM flag that the downlink data corresponding to the STATION is not buffered on the AP, the WiFi component is controlled to enter the dormant state, and the BLE component is controlled to enter the awake state, so that the STATION is in the BLE working mode. For example: according to the value 0 of TIM flag 1, when it is determined that the downlink data corresponding to STATION1 is not cached on the AP, STATION 1 will control the WiFi component to enter the sleep state and control the BLE component to enter the wake-up state, so that STATION 1 is in BLE Operating mode.

Optionally, in step S22, switching between the first communication mode and the second communication mode according to the first instruction information may include the following execution steps:

Step S222: Determine, according to the first instruction information, that the second communication device stores downlink data to be sent to the first communication device;

Step S223, controlling the first communication component to maintain the awake state, and controlling the second communication component to enter the sleep state, so that the first communication device is in the first communication mode.

Still as shown in Table 1, when it is determined that there is downlink data corresponding to the STATION cached on the AP according to the value of the TIM flag, the WiFi component is controlled to stay in the awake state, and the BLE component is controlled to enter the sleep state, so that the STATION is in the WiFi working mode. For example: according to the value 1 of TIM flag 2, when it is determined that the downlink data corresponding to the STATION 2 is cached on the AP, STATION 2 will control the WiFi component to stay awake and control the BLE component to enter the sleep state so that STATION 2 is in WiFi Operating mode.

Optionally, in step S22, after switching between the first communication mode and the second communication mode according to the first instruction information, the following steps may be further included:

Step S23: Send a first empty data frame to the second communication device, where the first empty data frame carries second indication information, the second indication information is identified as a first value, and the first value is used to indicate the first communication The component is in the awake state;

Step S24, receiving downlink data from the second communication device through the first communication component;

Step S25: Perform corresponding control operations according to the downlink data.

The Nulldata frame is responsible for transmitting the power saving status change information of STATION to the AP. STA (equivalent to the second indication information) is a field in the Nulldata frame, used to notify the AP of the power saving status change of STATION. Table 2 is an optional example of using STA to indicate the power saving state change of STATION, as shown in Table 2:

Table 2

STATION NO.	Nulldata No.	STA
STATION 1	Nulldata 1	0- means work
STATION 2	Nulldata 2	1- means sleep
STATION 3	Nulldata 3	1
STATION 4	Nulldata 4	0
...	...	...
STATION n-1	Nulldata n-1	1
STATION n	Nulldata n	0

Taking STATION 1 as an example, first, STATION 1 sends Nulldata 1 to the AP, where the value of the STA field carried by Nulldata 1 is 0, which means that STATION 1 is in WiFi working mode. Secondly, STATION1 receives downlink data from AP through WiFi component. Then STATION 1 performs corresponding control operations according to the downlink data. The following describes how STATION 1 performs corresponding control operations based on downlink data in combination with multiple application scenarios:

Application scenario 1. Assuming that STATION 1 is a smart light, and the downstream data is the control information that the smart light set through the cloud server needs to automatically turn on at 6 pm, then STATION 1 will automatically turn on at 6 pm based on the downlink data light.

Application Scenario 2: Assuming that STATION 1 is a smart electric light, the downstream data is the user opening the door and entering the room detected by other smart home devices (such as smart anti-theft door), and the smart electric light needs to automatically turn on the control information immediately, then STATION 1 is based on Downlink data will automatically turn on the lights immediately to illuminate the user.

Application scenario 3. Assuming that STATION 1 is a smart light, the downstream data is the control information that the user needs to enter the reading mode or theater mode to adjust the brightness of the smart light set by the smart phone, then STATION 1 will follow the reading mode or theater according to the downstream data Mode adjusts the brightness of the light.

Optionally, in step S23, after sending the first null data frame to the second communication device, the following execution steps may be further included:

Step S26, when it is determined that the downlink data is received, control the first communication component to enter the dormant state, and control the second communication component to enter the wake-up state, so that the first communication device is in the second communication mode;

Step S27: Send a second empty data frame to the second communication device, where the second empty data frame carries second indication information, the second indication information is identified as a second value, and the second value is used to indicate the first communication The component is sleeping.

Taking STATION2 as an example, when STATION2 determines that the downlink data has been received, STATION2 controls the WiFi component to enter the sleep state, and controls the BLE component to enter the wake-up state, so that STATION2 is in the BLE working mode. Then, STATION 2 sends Nulldata 2 to the AP, where the value of the STA field carried by Nulldata 2 is 1, which means that STATION 2 is in the BLE working mode.

Optionally, the foregoing method may further include the following execution steps:

Step S28, listening to the broadcast frame from the third communication device through the second communication component, wherein the broadcast frame carries a control instruction;

Step S29: Perform a corresponding control operation according to the control instruction.

While the WiFi component remains connected, the BLE component on the STATION can still listen to the broadcast frame from the BLE controller without establishing a connection and synchronization. The broadcast frame carries a control command. STATION will execute the corresponding control operation according to the control instruction.

Assuming that the STATION is a smart light, and the BLE controller is a remote control that matches the smart light, the remote control can send a light-on control instruction to the smart light, and then the smart light will perform the corresponding light-on operation according to the control instruction. In the same way, the remote control can also be used to send a light-off control instruction to the smart light, and then the smart light will perform the corresponding light-off operation according to the control instruction.

Optionally, in step S28, listening to the broadcast frame through the second communication component may include the following execution steps:

Step S281, the second communication component listens to the broadcast frame via the preset channel, wherein the preset channel is selected from a plurality of candidate channels and determined by the first communication device and the third communication device in advance through negotiation.

The broadcast process of the BLE component may originally work in multiple different channels. Therefore, in order to improve the success rate of the BLE component receiving data, the broadcast process of the BLE component can be fixed in any of the channels. As for the actual fixed channel, it needs to be negotiated and determined by each STATION and the corresponding BLE controller in advance, so that each STATION listens to the broadcast frame from the corresponding BLE controller via the fixed channel.

Optionally, the beacon frame also carries the updated beacon interval. In step S21, after the beacon frame is intercepted by the first communication component, the following execution steps may be further included:

Step S30: Adjust the preset beacon interval to the updated beacon interval, and wake up the first communication component again according to the updated beacon interval.

Under normal circumstances, the AP sends a beacon frame once according to the beacon interval (for example, 100 ms). The preset duration can be customized by the user to obtain the updated beacon interval. Then, the AP will carry the updated beacon interval in the beacon frame and send the beacon frame to the STATION, so that the STATION wakes up the WiFi component according to the updated beacon interval.

According to one of the embodiments of the present disclosure, an embodiment of a method for processing broadcast frames is also provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be implemented in a computer system such as a set of computer-executable instructions. Execution, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than here.

In this embodiment, a method for processing broadcast frames running on the aforementioned BLE controller is provided. FIG. 4 is a flowchart of a method for processing broadcast frames according to one of the embodiments of the present disclosure. As shown in FIG. 4, the method is Including the following steps:

Step S40: It is determined that the first communication device is switched from the first communication mode to the second communication mode, wherein the first communication device communicates with the external communication device through the second communication device in the first communication mode, and the second communication device is used for Establish a wireless local area network, and the first communication device performs point-to-point communication with the third communication device in the second communication mode;

Step S41, in response to the control operation acting on the third communication device, determine the control instruction to be sent;

Step S42, repeatedly sending a broadcast frame to the first communication device within a preset time period, wherein the broadcast frame carries a control instruction.

In order to reduce the packet loss probability of BLE components, a retransmission mechanism is added to the BLE controller to ensure that the control commands of the BLE controller can be retransmitted multiple times within the preset time period. Then the probability of STATION receiving the BLE control commands will be Will be significantly improved. For the control operation of the BLE controller, it can be completed by a physical control keyboard composed of physical keys, or a virtual control keyboard composed of virtual keys on the touch screen, or a physical touch panel with the display screen. carry out. When the BLE controller detects that the user performs a pressing operation on a physical button, or a touch operation performed on the touch screen, or a touch operation performed on the touch panel, it determines the BLE control to be sent Command (for example: turn on the light command). Then, the BLE controller will repeatedly send the BLE control command to the STATION within a preset time period.

In an optional embodiment, the foregoing preset duration is greater than the preset beacon interval.

In order to ensure that the STATION successfully receives the control command sent by the BLE controller, the continuous retransmission time can be controlled to be longer than the preset beacon interval (for example: 100ms). Of course, the preset duration can also be set to be less than or equal to 100 ms according to actual application scenarios.

Optionally, in step S42, repeatedly sending a broadcast frame to the first communication device within a preset time period may include the following execution steps:

Step S420, within a preset time period, repeatedly send broadcast frames to the first communication device via the preset channel, wherein the preset channel is selected from a plurality of candidate channels and determined by the first communication device and the third communication device in advance through negotiation .

The broadcast process of the BLE component may originally work in multiple different channels. Therefore, in order to improve the success rate of the BLE component receiving data, the broadcast process of the BLE component can be fixed in any of the channels. As for the actual fixed channel, it needs to be negotiated and determined by each STATION and the corresponding BLE controller in advance, so that each STATION listens to the broadcast frame from the corresponding BLE controller via the fixed channel.

In an optional embodiment, the BLE controller can repeatedly send broadcast frames to the corresponding STATION at equal time intervals via the above fixed channel within a preset time period. For example, when the preset duration is 100 ms, the BLE controller repeatedly sends the broadcast frame to the corresponding STATION 10 times at a time interval of 10 ms. Of course, the BLE controller may not repeatedly send broadcast frames to the corresponding STATION at an equal time interval. For example, when the preset duration is 100ms, the BLE controller repeatedly sends broadcast frames to the corresponding STATION 4 times at 10ms, 30ms, 60ms, and 100ms.

Optionally, in step S42, after repeatedly sending the broadcast frame to the first communication device within a preset time period, the following steps may be further included:

Step S43: If the feedback message from the first communication device is received within the preset time period, stop sending the broadcast frame before reaching the end of the preset time period, where the feedback message is used to indicate that the first communication device has successfully executed Control instruction.

In order to enable the first communication device to receive the control instructions carried in the broadcast frame in a timely and accurate manner, the third communication device repeatedly sends the broadcast frame to the first communication device within a preset time period. In order to effectively save or reduce the power consumption of the third communication device, a feedback mechanism can be added to the first communication device.

In an optional embodiment, the feedback message may be used to indicate that the first communication device has successfully executed the control instruction. If the first communication device has received the control instruction from the third communication device and the first communication device successfully executes the control instruction, the first communication device can send a feedback message to the third communication device so that the third communication device can determine the first The communication device has successfully executed the control command. Therefore, the third communication device does not need to repeatedly broadcast frames to the first communication device, thereby effectively saving or reducing the power consumption of the third communication device.

In an optional embodiment, the feedback message may also be used to indicate that the first communication device failed to successfully execute the control instruction. If the first communication device has received the control instruction from the third communication device but the first communication device fails to execute the control instruction successfully, the first communication device can still send a feedback message to the third communication device so that the third communication device can It is determined that the first communication device failed to successfully execute the control instruction. Therefore, the third communication device can repeatedly broadcast the frame to the first communication device in a targeted manner.

Optionally, in step S42, after repeatedly sending the broadcast frame to the first communication device within a preset time period, the following steps may be further included:

Step S44: If the feedback message from the first communication device is not received when the end time of the preset duration arrives, stop sending the broadcast frame and enter the sleep state, where the feedback message is used to indicate that the first communication device has succeeded Execute control instructions.

In an optional embodiment, the feedback message may be used to indicate that the first communication device has successfully executed the control instruction. If the third communication device does not receive the feedback message from the first communication device when the end time of the preset duration arrives, the third communication device can stop repeatedly sending broadcast frames and enter the sleep state (ie, low power consumption state) Therefore, the power consumption of the third communication device can be effectively saved or reduced.

The overall work flow of the communication mode switching system will be described in further detail below in conjunction with the optional implementation shown in FIG. 5. Fig. 5 is a working flow chart of a communication mode switching system according to an alternative embodiment of the present disclosure. As shown in Figure 5, the process may include the following processing steps:

Step S502: The WiFi AP sends a beacon frame to the STATION, where the beacon frame carries a beacon interval, a TIM field, and an SSID field. The value of the TIM flag corresponding to the STATION in the TIM field is 0, indicating that the STATION enters the BLE working mode.

Step S504, STATION receives a light-on control instruction from the BLE controller.

Step S506: The WiFi AP sends a beacon frame to the STATION, where the beacon frame carries a beacon interval, a TIM field, and an SSID field. The value of the TIM flag corresponding to the STATION in the TIM field is 1, indicating that the STATION enters the WiFi working mode.

Step S508: STATION sends a Nulldata frame to the WiFi AP, where the Nulldata frame carries an STA field. The attribute value of the STA field is 0, and the WiFi AP is notified that STATION enters the WiFi working mode, so that the WiFi AP sends the content associated with STATION stored in the WiFi AP to STATION.

In step S510, the WiFi AP sends the content associated with the STATION stored in the WiFi AP to the STATION.

Step S512: The WiFi AP clears the content associated with the STATION stored in the WiFi AP.

Step S514: STATION sends a Nulldata frame to the WiFi AP, where the Nulldata frame carries an STA field. The attribute value of the STA field is 1, and the WiFi AP is notified that STATION enters the BLE working mode.

Step S516: The WiFi AP sends a beacon frame to the STATION, where the beacon frame carries a beacon interval, a TIM field, and an SSID field. The value of the TIM flag corresponding to the STATION in the TIM field is 0, indicating that the STATION enters the BLE working mode.

In step S518, STATION receives other control instructions from the BLE controller (for example: adjusting the brightness of the light, turning off the light).

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to enable a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the method described in each embodiment of the present disclosure.

In this embodiment, a communication mode switching device is also provided. The device is used to implement the above-mentioned embodiments and preferred implementations, and those that have been described will not be repeated. As used below, the term "module" can implement a combination of software and/or hardware with predetermined functions. Although the devices described in the following embodiments are preferably implemented by software, hardware or a combination of software and hardware is also possible and conceived.

Fig. 6 is a structural block diagram of a communication mode switching device according to one of the embodiments of the present disclosure. As shown in Fig. 6, the device includes: a wake-up module 100 configured to wake up the first communication device at a preset beacon interval A communication component, wherein the first communication component communicates with an external communication device through a second communication device in the first communication mode, and the second communication device is used to establish a wireless local area network; the listening module 102 is configured to pass through the first communication component Listen to the beacon frame from the second communication device, where the beacon frame carries at least first indication information, and the first indication information is used to indicate whether the second communication device stores a downlink to be sent to the first communication device Data; the switching module 104 is configured to switch between the first communication mode and the second communication mode according to the first instruction information, wherein the second communication component on the first communication device communicates with the third communication mode in the second communication mode Point-to-point communication between devices.

Optionally, the switching module 104 includes: a first determining unit (not shown in the figure), configured to determine, according to the first indication information, that there is no downlink data to be sent to the first communication device stored on the second communication device; The unit (not shown in the figure) is set to control the first communication component to enter the dormant state and control the second communication component to enter the awake state, so that the first communication device is in the second communication mode.

Optionally, the switching module 104 includes: a second determining unit (not shown in the figure), configured to determine, according to the first indication information, that the second communication device stores downlink data to be sent to the first communication device; a second control unit (Not shown in the figure), it is set to control the first communication component to stay in the awake state and control the second communication component to enter the dormant state, so that the first communication device is in the first communication mode.

Optionally, FIG. 7 is a structural block diagram of a communication mode switching device according to one of the optional embodiments of the present disclosure. As shown in FIG. 7, the device includes all the modules shown in FIG. 6, and the above-mentioned device also includes: The first sending module 106 is configured to send a first empty data frame to the second communication device, wherein the first empty data frame carries second indication information, the second indication information is identified as a first value, and the first value is used for To indicate that the first communication component is in an awake state; the receiving module 108 is configured to receive downlink data from the second communication device through the first communication component; the execution module 110 is configured to perform corresponding control operations according to the downlink data.

Optionally, as shown in FIG. 7, the above-mentioned device further includes: a control module 112, which is configured to control the first communication component to enter the sleep state and control the second communication component to enter the wake-up state when it is determined that the downlink data reception is completed, So that the first communication device is in the second communication mode; the second sending module 114 is configured to send a second empty data frame to the second communication device, wherein the second empty data frame carries second indication information, and the second indication The information is identified as a second value, and the second value is used to indicate that the first communication component is in a sleep state.

Optionally, the listening module 102 is further configured to listen to the broadcast frame from the third communication device through the second communication component, wherein the broadcast frame carries a control instruction; and executes the corresponding control operation according to the control instruction.

Optionally, the listening module 102 is configured to listen to broadcast frames via a preset channel through the second communication component, wherein the preset channel is selected from a plurality of candidate channels and used by the first communication device and the third communication device Determined by negotiation in advance.

Optionally, the beacon frame also carries an updated beacon interval. As shown in FIG. 7, the above-mentioned apparatus further includes: a processing module 116, configured to adjust the preset beacon interval to the updated beacon interval, And wake up the first communication component again according to the updated beacon interval.

It should be noted that each of the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules are combined in any combination The forms are located in different processors.

In this embodiment, a device for processing broadcast frames is also provided, which is used to implement the above-mentioned embodiments and preferred implementations, and those that have been described will not be repeated. As used below, the term "module" can implement a combination of software and/or hardware with predetermined functions. Although the devices described in the following embodiments are preferably implemented by software, hardware or a combination of software and hardware is also possible and conceived.

Fig. 8 is a structural block diagram of an apparatus for processing broadcast frames according to one of the embodiments of the present disclosure. As shown in Fig. 8, the apparatus includes: a determining module 200 configured to determine that the first communication device switches from the first communication mode to the second communication mode. Communication mode, wherein the first communication device communicates with the external communication device through the second communication device in the first communication mode, the second communication device is used to establish a wireless local area network, and the first communication device communicates with the third communication device in the second communication mode. The communication devices perform point-to-point communication, and in response to a control operation acting on the third communication device, determine the control instruction to be sent; the processing module 202 is configured to repeatedly send broadcast frames to the first communication device within a preset time period, where the broadcast Control instructions are carried in the frame.

Optionally, the preset duration is greater than the preset beacon interval.

Optionally, the processing module 202 is configured to repeatedly send broadcast frames to the first communication device via a preset channel within a preset time period, wherein the preset channel is selected from a plurality of candidate channels and the first communication device and The third communication device is negotiated and determined in advance.

Optionally, the processing module 202 is further configured to stop sending the broadcast frame before reaching the end time of the preset duration if the feedback message from the first communication device is received within the preset duration, wherein the feedback message is used for Indicates that the first communication device has successfully executed the control command.

Optionally, the processing module 202 is further configured to stop sending the broadcast frame and enter a sleep state if the feedback message from the first communication device is not received when the end time of the preset duration arrives, wherein the feedback message is used Yu indicates that the first communication device has successfully executed the control command.

Optionally, the processing module 202 is further configured to repeatedly send broadcast frames to the first communication device at equal time intervals via a preset channel within a preset time period.

It should be noted that each of the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules are combined in any combination The forms are located in different processors.

The embodiment of the present disclosure also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any of the foregoing method embodiments when running.

Optionally, in this embodiment, the foregoing storage medium may be configured to store a computer program for executing the following steps:

S1. Wake up the first communication component on the first communication device according to the preset beacon interval, wherein the first communication component communicates with the external communication device through the second communication device in the first communication mode, and the second communication device is used for Establish a wireless local area network;

S2: Use the first communication component to listen to a beacon frame from the second communication device, where the beacon frame carries at least first indication information, and the first indication information is used to indicate whether the second communication device is stored to be sent Downlink data to the first communication device;

S3, switching between the first communication mode and the second communication mode according to the first instruction information, wherein the second communication component on the first communication device performs point-to-point communication with the third communication device in the second communication mode .

Optionally, the storage medium is also configured to store a computer program for executing the following steps:

S1, determining that the first communication device switches from the first communication mode to the second communication mode, wherein the first communication device communicates with the external communication device through the second communication device in the first communication mode, and the second communication device is used to establish In a wireless local area network, the first communication device performs point-to-point communication with the third communication device in the second communication mode;

S2, in response to the control operation acting on the third communication device, determine the control instruction to be sent;

S3: Repeatedly sending a broadcast frame to the first communication device within a preset time period, where the broadcast frame carries a control instruction.

Optionally, in this embodiment, the foregoing storage medium may include, but is not limited to: U disk, Read-Only Memory (Read-Only Memory, ROM for short), Random Access Memory (Random Access Memory, RAM for short), Various media that can store computer programs, such as mobile hard disks, magnetic disks, or optical disks.

The embodiment of the present disclosure also provides a processor, which is configured to run a computer program to execute the steps in any one of the foregoing method embodiments.

Optionally, in this embodiment, the foregoing processor may be configured to execute the following steps through a computer program:

S1. Wake up the first communication component on the first communication device according to the preset beacon interval, wherein the first communication component communicates with the external communication device through the second communication device in the first communication mode, and the second communication device is used for Establish a wireless local area network;

S2: Use the first communication component to listen to a beacon frame from the second communication device, where the beacon frame carries at least first indication information, and the first indication information is used to indicate whether the second communication device is stored to be sent Downlink data to the first communication device;

S3, switching between the first communication mode and the second communication mode according to the first instruction information, wherein the second communication component on the first communication device performs point-to-point communication with the third communication device in the second communication mode .

Optionally, in this embodiment, the foregoing processor may also be configured to execute the following steps through a computer program:

S1, determining that the first communication device switches from the first communication mode to the second communication mode, wherein the first communication device communicates with the external communication device through the second communication device in the first communication mode, and the second communication device is used to establish In a wireless local area network, the first communication device performs point-to-point communication with the third communication device in the second communication mode;

S2, in response to the control operation acting on the third communication device, determine the control instruction to be sent;

S3: Repeatedly sending a broadcast frame to the first communication device within a preset time period, where the broadcast frame carries a control instruction.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the above-mentioned embodiments and optional implementation manners, and details are not described herein again in this embodiment.

The serial numbers of the above-mentioned embodiments of the present disclosure are only for description, and do not represent the superiority of the embodiments.

In the above-mentioned embodiments of the present disclosure, the description of each embodiment has its own focus. For parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units may be a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of units or modules, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program code .

The above are only the preferred embodiments of the present disclosure. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present disclosure, several improvements and modifications can be made, and these improvements and modifications are also Should be regarded as the protection scope of the present disclosure.

Claims (12)

1. A method for switching communication modes, including:

   Wake up the first communication component on the first communication device according to the preset beacon interval, wherein the first communication component communicates with the external communication device through the second communication device in the first communication mode, and the second communication device Used to build a wireless local area network;

   The first communication component listens to a beacon frame from the second communication device, wherein the beacon frame carries at least first indication information, and the first indication information is used to indicate the first 2. Whether downlink data to be sent to the first communication device is stored on the communication device;

   Switching between the first communication mode and the second communication mode according to the first instruction information, wherein the second communication component on the first communication device communicates with the third communication mode in the second communication mode Point-to-point communication between devices.
2. The method according to claim 1, wherein switching between the first communication mode and the second communication mode according to the first instruction information comprises:

   Determining, according to the first instruction information, that no downlink data to be sent to the first communication device is stored on the second communication device;

   Control the first communication component to enter a sleep state, and control the second communication component to enter an awake state, so that the first communication device is in the second communication mode.
3. The method according to claim 1, wherein switching between the first communication mode and the second communication mode according to the first instruction information comprises:

   Determining, according to the first instruction information, that the second communication device stores downlink data to be sent to the first communication device;

   Control the first communication component to maintain the awake state, and control the second communication component to enter the dormant state, so that the first communication device is in the first communication mode.
4. The method according to claim 3, wherein after switching between the first communication mode and the second communication mode according to the first instruction information, the method further comprises:

   Send a first empty data frame to the second communication device, wherein the first empty data frame carries second indication information, the second indication information is identified as a first value, and the first value is used Indicating that the first communication component is in the awake state;

   Receiving the downlink data from the second communication device through the first communication component;

   Perform corresponding control operations according to the downlink data.
5. The method according to claim 4, wherein after sending the first null data frame to the second communication device, the method further comprises:

   When it is determined that the downlink data is received, the first communication component is controlled to enter the dormant state, and the second communication component is controlled to enter the awake state, so that the first communication device is in the second communication mode ；

   Send a second empty data frame to the second communication device, where the second empty data frame carries the second indication information, the second indication information is identified as a second value, and the second The numerical value is used to indicate that the first communication component is in the sleep state.
6. The method according to claim 2, wherein the method further comprises:

   Listening to the broadcast frame from the third communication device through the second communication component, wherein the broadcast frame carries a control instruction;

   Perform corresponding control operations according to the control instructions.
7. The method according to claim 6, wherein listening to the broadcast frame through the second communication component comprises:

   Through the second communication component, the broadcast frame is listened to via a preset channel, wherein the preset channel is selected from a plurality of candidate channels and pre-defined by the first communication device and the third communication device Determined by negotiation.
8. The method according to any one of claims 1 to 7, wherein the beacon frame also carries an updated beacon interval, and after listening to the beacon frame through the first communication component, Also includes:

   Adjust the preset beacon interval to the updated beacon interval, and wake up the first communication component again according to the updated beacon interval.
9. A communication mode switching device, including:

   The wake-up module is set to wake up the first communication component on the first communication device according to the preset beacon interval, wherein the first communication component communicates with the external communication device through the second communication device in the first communication mode, so The second communication device is used to establish a wireless local area network;

   The listening module is configured to listen to a beacon frame from the second communication device through the first communication component, wherein the beacon frame carries at least first indication information, and the first indication information Used to indicate whether downlink data to be sent to the first communication device is stored on the second communication device;

   The switching module is configured to switch between the first communication mode and the second communication mode according to the first instruction information, wherein the second communication component on the first communication device is in the second communication mode Perform point-to-point communication with the third communication device.
10. A storage medium, the storage medium including a stored program, wherein the device where the storage medium is located is controlled to execute the communication mode switching method according to any one of claims 1 to 8 when the program is running.
11. A processor for running a program, wherein the method for switching communication modes according to any one of claims 1 to 8 is executed when the program is running.
12. A communication mode switching system, comprising: a first communication device, a second communication device, and a third communication device, wherein the first communication device includes the communication mode switching device according to claim 9.

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