WO2021051986A1

WO2021051986A1 - Method for establishing connection between apparatuses, and electronic device

Info

Publication number: WO2021051986A1
Application number: PCT/CN2020/102530
Authority: WO
Inventors: 姜�远; 郭菁睿
Original assignee: 华为技术有限公司
Priority date: 2019-09-18
Filing date: 2020-07-17
Publication date: 2021-03-25
Also published as: CN110730448A

Abstract

The present application provides a method for establishing a connection between apparatuses, and an electronic device. In the method, a transmitting apparatus transmits its own Wi-Fi capability information to a receiving apparatus by means of an acoustic wave communication technique with a working frequency band greater than 10 KHz, thereby avoiding the frequency band of 0-6 KHz where a sound produced by a person is located, reducing in-band interference, and improving the reliability of transmission between an old mobile phone and a new mobile phone. In addition, the transmitting apparatus further may perform encryption on the Wi-Fi capability information, perform coding modulation, and transmit the Wi-Fi capability information by means of an acoustic wave, thereby improving the safety of a transmission process. The method can make the receiving apparatus turn on a Wi-Fi hotspot according to the Wi-Fi capability information of the transmitting apparatus, reduces the interaction process of switching a 2.4GHz Wi-Fi connection to a 5GHz Wi-Fi connection between the apparatuses, and shortens the time length of establishing a Wi-Fi connection between the apparatuses, thereby improving user experience.

Description

Method for establishing connection between equipment and electronic equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 18, 2019, the application number is 201910883033.8, and the application name is "Methods and Electronic Devices for Establishing Connections Between Devices", the entire contents of which are incorporated by reference in In this application.

Technical field

This application relates to the field of electronic technology, and in particular to a method for establishing a connection between devices and an electronic device.

Background technique

Transferring information between devices has become a very common application scenario in life. For example, when users replace electronic devices, they transfer data between the new and old devices through mobile phone backup, mobile phone cloning, etc. Before transmitting data between the new and old devices, it is generally necessary to establish a short-distance wireless connection between the new and old devices, such as wireless fidelity (WI-FI) connections.

In the process of transmitting data, if a large amount of data is being transmitted, using the highest and optimal frequency for transmission will provide the best user experience. However, due to the different WI-FI connection capabilities supported by the new and old devices, it will affect the way in which connections are established between the new and old devices.

Summary of the invention

This application provides a method for establishing a connection between devices and an electronic device. The method can enable the receiving device to turn on the WI-FI hotspot according to the WI-FI capability information of the sending device, and reduce the switch between the devices from 2.4GHz WI-FI connection to The interactive process of 5GHz WI-FI connection shortens the time for establishing WI-FI connection between devices and improves user experience.

In a first aspect, a method for establishing a connection between devices is provided, including: a sending device obtains first hotspot information of a receiving device, the first hotspot information includes a first service set identifier SSID; the sending device sends to the receiving device Acoustic wave signal, the acoustic wave signal includes the wireless fidelity WI-FI capability information of the sending device that has been encoded and modulated, so that the receiving device sends the second hotspot information of the receiving device according to the WI-FI capability information of the sending device, the The second hotspot information includes a second SSID; the sending device sends a request for establishing a WI-FI connection with the receiving device according to the second hotspot information.

In this application, the first hotspot information includes the first SSID, the second hotspot information includes the second SSID, and the first SSID is different from the second SSID. Optionally, the frequency band of the WI-FI network corresponding to the second SSID is adapted to the WI-FI capability information of the old mobile phone. For example, the working frequency band of the WI-FI network corresponding to the second SSID is 5GHz, and the WI-FI corresponding to the first SSID The working frequency band of the network is 2.4GHz.

In this application, the working frequency band of 2.4GHz WI-FI connection may be in the frequency range of 2.4GHz-2.4835GHz, and the working frequency band of 5GHz WI-FI connection may be in the frequency range of 5.150GHz-5.850GHz. For example, in this application, the WI-FI capability information of the old mobile phone 20 indicates that the old mobile phone 20 can support 2.4 GHz WI-FI connection and 5 GHz WI-FI connection.

It should be understood that, in the embodiment of the present application, a user changes a mobile phone and uses a mobile phone clone to perform data transmission or data migration between the new and old mobile phones as an example to introduce a method for establishing a connection between devices. Among them, the new mobile phone serves as a hotspot, which can also be called an access point, which provides WI-FI hotspots for the old mobile phones, which is the receiving device of this application; the old mobile phones are used as the site to connect to the hotspot, which is the sending device of this application.

Through the above technical solution, the old mobile phone sends the WI-FI capability information of the old mobile phone to the new mobile phone through the acoustic wave communication technology. The frequency band used by acoustic wave communication technology is a high frequency band above 10KHz, avoiding the 0～6KHz frequency band where human sounds are emitted. This can reduce in-band interference in application scenarios, ensure the success rate of acoustic wave transmission, and improve the old The reliability of the transmission between the mobile phone and the new mobile phone. In addition, acoustic wave communication technology is more suitable for short-distance, small data transmission. In this application, during the transmission of acoustic signals, the operating distance between devices that meet the requirements of reliable transmission is 30cm. When the distance between the devices is greater than 50cm, it is almost impossible to decode the acoustic signal, so the WI is transmitted through the acoustic wave communication technology. -FI ability can resist attack. In other words, when the attacker cannot approach from too close a distance, the sonic signal cannot be decoded to obtain WI-FI information. Therefore, the application of sonic communication technology to the process of establishing a connection between devices can ensure the reliability of information transmission.

With reference to the first aspect, in some implementation manners of the first aspect, the sending device obtains the first hotspot information of the receiving device, including: the sending device scans the QR code displayed by the receiving device to obtain information from the QR code. Extract the first SSID and the corresponding first password.

The new mobile phone combines the first SSID and WI-FI password information into a QR code and displays it on the new mobile phone. The old mobile phone obtains the first hot spot information of the new mobile phone by scanning the QR code. In addition, in a possible implementation manner, the new mobile phone can also send the hotspot information of the new mobile phone to the old mobile phone through the acoustic wave communication technology. Or, in another possible implementation manner, the new mobile phone can also send the information of the first network hotspot to the old mobile phone by way of Bluetooth communication technology.

The old mobile phone obtains the first hotspot information of the new mobile phone sent by the new mobile phone by scanning the QR code, and then transmits the WI-FI capability information of the old mobile phone to the new mobile phone. After the old mobile phone scans the QR code of the new mobile phone, it can send a sound wave signal to the new mobile phone. In other words, the old mobile phone scans the QR code of the new mobile phone to trigger the old mobile phone to send a sound wave signal to the new mobile phone. WI-FI capability information.

Combining the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, before the sending device sends the acoustic wave signal to the receiving device, the method further includes: the sending device obtains the public key of the key pair; The device encrypts the WI-FI capability information by using the public key; the sound wave signal sent by the sending device to the receiving device includes the WI-FI capability information that has been encoded and modulated and encrypted by the public key.

Since the establishment of a WI-FI connection is usually used before data transmission between two mobile terminals, since the data is personal information, there is a high requirement for confidentiality. In the actual application process, if an attacker preemptively connects to WI-FI, the WI-FI hotspot information is directly transmitted through the sound wave signal, and the surrounding attackers can receive the sound wave signal to connect to the WI-FI hotspot, and the security cannot be obtained. Guaranteed.

Optionally, the sound wave signal sent by the old mobile phone to the new mobile phone includes the WI-FI capability information that has been encoded and modulated and encrypted by the public key. On the old mobile phone side, the old mobile phone encrypts the WI-FI capability information with a public key, then encodes and modulates the cipher text of the WI-FI capability information encrypted by the public key, and then transmits the encoded and modulated information using sound waves. Information.

Correspondingly, on the new mobile phone side, after receiving the sonic signal, the sonic signal is first demodulated and decoded, and then the WI-FI capability information is obtained by decrypting the private key corresponding to the public key.

Through the above technical solution, the old mobile phone passes its own WI-FI capability information to the new mobile phone through the process of encrypting the WI-FI capability information, and then encoding and modulating, and transmitting through sound waves, which can increase the transmission process. Security. When an attacker appears nearby or connects to WI-FI first, the security of the data can also be ensured through the encryption of WI-FI capability information. At the same time, it is ensured that the new mobile phone can accurately obtain information such as the WI-FI frequency points supported by the old mobile phone, so that the new mobile phone directly opens the WI-FI hotspot for the old mobile phone according to the WI-FI frequency point supported by the old mobile phone 10, reducing the number of old mobile phones and The interactive process of switching from 2.4GHz WI-FI connection to 5GHz WI-FI connection between new mobile phones speeds up the time for establishing WI-FI connection and improves user experience.

Combining the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the WI-FI capability information includes the WI-FI standard number supported by the sending device, working frequency range, compatibility, bandwidth, and physical transmission At least one of rate and modulation method.

Combining the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the frequency of the acoustic wave signal is greater than 10 kHz.

Through the above technical solution, the frequency band used by the acoustic wave communication technology is a high frequency band above 10KHz, avoiding the frequency band of 0-6KHz where human sounds are emitted, which can reduce the in-band interference in the application scenario and ensure the sound wave transmission. The success rate improves the reliability of transmission between old and new mobile phones.

Combining the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the method further includes: when the sending device sends the sonic signal to the receiving device, the sending device displays a prompt interface indicating that the sonic signal is being sent.

Combining the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the working frequency band of the WI-FI network corresponding to the second SSID is 5GHz; the request to establish a WI-FI connection with the receiving device carries the first aspect Two SSID and first password.

In a second aspect, a method for establishing a connection between devices is provided, including: a receiving device transmits first hotspot information of the receiving device to a sending device, the first hotspot information includes a first service set identifier SSID; the receiving device receives The sound wave signal sent by the sending device, where the sound wave signal includes the wireless fidelity WI-FI capability information of the sending device that has undergone encoding and modulation processing; the receiving device sends second hotspot information according to the WI-FI capability information of the sending device, the The second hotspot information includes a second SSID; the receiving device receives a request for establishing a WI-FI connection sent by the sending device according to the second hotspot information; the receiving device establishes with the sending device according to the request for establishing a WI-FI connection WI-FI connection, the request to establish the WI-FI connection includes the second SSID.

With reference to the second aspect, in some implementations of the second aspect, the receiving device transmitting the first hotspot information of the receiving device to the sending device includes: the receiving device generates and displays a two-dimensional code, the two-dimensional code includes The first SSID and the corresponding first password; the receiving device transmits the first hotspot information to the sending device through the two-dimensional code.

Combining the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, before the receiving device receives the sound wave signal sent by the sending device, the method further includes: the receiving device sends a key pair to the sending device Public key; and after the receiving device receives the sound wave signal sent by the sending device, the method further includes: the receiving device demodulates and decodes the sound wave signal sent by the sending device to obtain the WI encrypted by the public key -FI capability information; the receiving device decrypts to obtain the WI-FI capability information through the private key corresponding to the public key.

Combining the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the WI-FI capability information includes the WI-FI standard number supported by the sending device, working frequency range, compatibility, bandwidth, and physical transmission At least one of rate and modulation method.

In combination with the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the frequency of the acoustic signal is greater than 10 kHz.

Combining the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the first SSID is different from the second SSID; the frequency band of the WI-FI network corresponding to the second SSID is adapted to the WI of the sending device -FI capability information.

Combining the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the working frequency band of the WI-FI network corresponding to the second SSID is 5GHz; the sending device establishes WI-FI according to the second hotspot information sent The connection request carries the second SSID and the first password.

In a third aspect, a sending device is provided, including: one or more processors; a memory; and one or more programs, wherein the one or more programs are stored in the memory, and when the one or more programs When executed by the processor, the sending device is caused to perform the following steps: acquiring first hot spot information of the receiving device, the first hot spot information including the first service set identifier SSID; sending a sound wave signal to the receiving device, the sound wave signal including the encoded Modulate the processed wireless fidelity WI-FI capability information, so that the receiving device sends second hotspot information of the receiving device according to the WI-FI capability information, and the second hotspot information includes the second SSID; sends according to the second hotspot information A request to establish a WI-FI connection with the receiving device.

With reference to the third aspect, in some implementations of the third aspect, when the one or more programs are executed by the processor, the sending device is caused to perform the following steps: by scanning the two-dimensional code displayed by the receiving device, from the The first SSID and the corresponding first password are extracted from the two-dimensional code.

Combining the third aspect and the foregoing implementation manners, in some implementation manners of the third aspect, when the one or more programs are executed by the processor, the sending device is caused to perform the following steps: obtaining the public key of the key pair; The WI-FI capability information is encrypted by the public key; the sound wave signal sent to the receiving device includes the WI-FI capability information that has been encoded and modulated and encrypted by the public key.

Combining the third aspect and the foregoing implementation manners, in some implementation manners of the third aspect, the WI-FI capability information includes the WI-FI standard number, operating frequency range, compatibility, bandwidth, and physical transmission rate supported by the sending device , At least one of the modulation methods.

In combination with the third aspect and the foregoing implementation manners, in some implementation manners of the third aspect, the frequency of the acoustic signal is greater than 10 kHz.

Combining the third aspect and the foregoing implementation manners, in some implementation manners of the third aspect, when the one or more programs are executed by the processor, the sending device is caused to perform the following steps: before sending a sound wave signal to the receiving device When, the prompt interface that the sound wave signal is being sent is displayed.

Combining the third aspect and the foregoing implementation manners, in some implementation manners of the third aspect, the first SSID is different from the second SSID; the frequency band of the WI-FI network corresponding to the second SSID is adapted to the WI of the sending device -FI capability information.

Combining the third aspect and the foregoing implementation manners, in some implementation manners of the third aspect, the working frequency band of the WI-FI network corresponding to the second SSID is 5GHz; the request to establish a WI-FI connection with the receiving device carries the first Two SSID and first password.

In a fourth aspect, a receiving device is provided, including: one or more processors; a memory; and one or more programs, wherein the one or more programs are stored in the memory, when the one or more programs When executed by the processor, the receiving device is caused to perform the following steps: transferring the first hotspot information of the receiving device to the sending device, the first hotspot information includes the first service set identifier SSID; receiving the sound wave signal sent by the sending device, The sound wave signal includes the wireless fidelity WI-FI capability information of the sending device that has been encoded and modulated; the second hot spot information is sent according to the WI-FI capability information of the sending device, and the second hot spot information includes the second SSID; The device sends a request to establish a WI-FI connection according to the second hotspot information; establishes a WI-FI connection with the sending device according to the request to establish a WI-FI connection, and the request to establish a WI-FI connection includes the second SSID .

With reference to the fourth aspect, in some implementation manners of the fourth aspect, when the one or more programs are executed by the processor, the receiving device is caused to perform the following steps: generate and display a two-dimensional code, where the two-dimensional code is Including the first SSID and the corresponding first password; the receiving device transmits the first hotspot information to the sending device through the two-dimensional code.

Combining the fourth aspect and the foregoing implementation manners, in some implementation manners of the fourth aspect, when the one or more programs are executed by the processor, the receiving device is caused to perform the following steps: Public key; demodulate and decode the sound wave signal sent by the sending device to obtain the WI-FI capability information encrypted by the public key; decrypt the WI-FI capability information through the private key corresponding to the public key .

Combining the fourth aspect and the foregoing implementation manners, in some implementation manners of the fourth aspect, the WI-FI capability information includes the WI-FI standard number supported by the sending device, working frequency range, compatibility, bandwidth, and physical transmission rate , At least one of the modulation methods.

In combination with the fourth aspect and the foregoing implementation manners, in some implementation manners of the fourth aspect, the frequency of the acoustic signal is greater than 10 kHz.

Combining the fourth aspect and the foregoing implementation manners, in some implementation manners of the fourth aspect, the first SSID is different from the second SSID; the frequency band of the WI-FI network corresponding to the second SSID is adapted to the WI of the sending device -FI capability information.

Combining the fourth aspect and the foregoing implementation manners, in some implementation manners of the fourth aspect, the working frequency band of the WI-FI network corresponding to the second SSID is 5GHz; the sending device establishes WI-FI according to the second hotspot information sent The connection request carries the second SSID and the first password.

In a fifth aspect, the present application provides an electronic device, including: a touch display screen, wherein the touch display screen includes a touch-sensitive surface and a display; a camera; one or more processors; a memory; a plurality of application programs; and one or Multiple computer programs. Among them, one or more computer programs are stored in the memory, and the one or more computer programs include instructions. When the instruction is executed by the electronic device, the electronic device is caused to execute the method for establishing a connection between the devices in any one of the possible implementations of the foregoing aspects.

In a sixth aspect, the present application provides an electronic device including one or more processors and one or more memories. The one or more memories are coupled with one or more processors, and the one or more memories are used to store computer program codes. The computer program codes include computer instructions. When the one or more processors execute the computer instructions, the electronic device executes A method for establishing a connection between devices in any possible implementation of any one of the foregoing aspects.

In a seventh aspect, the present application provides a computer storage medium, including computer instructions, which when the computer instructions run on an electronic device, cause the electronic device to perform any one of the foregoing methods for establishing a connection between devices.

In an eighth aspect, this application provides a computer program product that, when the computer program product runs on an electronic device, causes the electronic device to execute any one of the foregoing methods for establishing a connection between devices.

Description of the drawings

FIG. 1 is a schematic diagram of an example of the structure of an electronic device provided by the present application.

Fig. 2 is a software structure block diagram of an electronic device according to an embodiment of the present application.

FIG. 3 is a schematic diagram of an example of a graphical user interface for establishing a connection between devices according to an embodiment of the present application.

FIG. 4 is a schematic diagram of another example of a graphical user interface for establishing a connection between devices according to an embodiment of the present application.

Figure 5 is a schematic diagram of an interaction between a new mobile phone and an old mobile phone to establish a connection.

Fig. 6 is a schematic diagram of an example of signal coding and modulation processing provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of a possible composition of an example of an electronic device provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Among them, in the description of the embodiments of the present application, unless otherwise specified, "/" means or, for example, A/B can mean A or B; "and/or" in this document is only a description of related objects The association relationship of indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: A alone exists, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" refers to two or more than two.

Hereinafter, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features, such as “first network”, “second network”, and “second network” in the embodiments of this application. "First channel set", "Second channel set", "Third channel set", etc.

The embodiment of the present application provides a method for establishing a connection between two electronic devices, which can enable the two electronic devices to quickly establish a connection. The electronic devices of this application can be mobile phones, tablet computers, wearable devices, vehicle-mounted devices, augmented reality (AR)/virtual reality (VR) devices, notebook computers, ultra-mobile personal computers (ultra-mobile personal computers). On electronic devices such as computers, UMPCs), netbooks, and personal digital assistants (personal digital assistants, PDAs), the embodiments of the present application do not impose any restrictions on the specific types of electronic devices.

Exemplarily, FIG. 1 is a schematic structural diagram of an example of electronic equipment provided in this application. The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, and an antenna 2. , Mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone jack 170D, sensor module 180, buttons 190, motor 191, indicator 192, camera 193, display screen 194, and Subscriber identification module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and ambient light Sensor 180L, bone conduction sensor 180M, etc.

It can be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown, or combine certain components, or split certain components, or arrange different components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units. For example, the processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU) Wait. Among them, the different processing units may be independent devices or integrated in one or more processors.

The controller may be the nerve center and command center of the electronic device 100. The controller can generate operation control signals according to the instruction operation code and timing signal to complete the control of fetching and executing instructions.

A memory may also be provided in the processor 110 to store instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory can store instructions or data that the processor 110 has just used or used cyclically. If the processor 110 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 110 is reduced, and the efficiency of the system is improved.

In some embodiments, the processor 110 may include one or more interfaces. The interface can include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transmitter (universal asynchronous) interface. receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / Or Universal Serial Bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus, which includes a serial data line (SDA) and a serial clock line (SCL). In some embodiments, the processor 110 may include multiple sets of I2C buses. The processor 110 may couple the touch sensor 180K, the charger, the flash, the camera 193, etc., respectively through different I2C bus interfaces. For example, the processor 110 may couple the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through an I2C bus interface to implement the touch function of the electronic device 100.

The I2S interface can be used for audio communication. In some embodiments, the processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled with the audio module 170 through an I2S bus to implement communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit audio signals to the wireless communication module 160 through an I2S interface, so as to realize the function of answering calls through a Bluetooth headset.

The PCM interface can also be used for audio communication to sample, quantize and encode analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface. In some embodiments, the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communication. The bus can be a two-way communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, the UART interface is generally used to connect the processor 110 and the wireless communication module 160. For example, the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to realize the Bluetooth function. In some embodiments, the audio module 170 may transmit audio signals to the wireless communication module 160 through a UART interface, so as to realize the function of playing music through a Bluetooth headset.

The MIPI interface can be used to connect the processor 110 with the display screen 194, the camera 193 and other peripheral devices. The MIPI interface includes a camera serial interface (camera serial interface, CSI), a display serial interface (display serial interface, DSI), and so on. In some embodiments, the processor 110 and the camera 193 communicate through a CSI interface to implement the shooting function of the electronic device 100. The processor 110 and the display screen 194 communicate through a DSI interface to realize the display function of the electronic device 100.

The GPIO interface can be configured through software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 110 with the camera 193, the display screen 194, the wireless communication module 160, the audio module 170, the sensor module 180, and so on. The GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, etc.

The USB interface 130 is an interface that complies with the USB standard specification, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on. The USB interface 130 can be used to connect a charger to charge the electronic device 100, and can also be used to transfer data between the electronic device 100 and peripheral devices. It can also be used to connect earphones and play audio through earphones. This interface can also be used to connect to other electronic devices, such as AR devices.

It can be understood that the interface connection relationship between the modules illustrated in the embodiment of the present application is merely a schematic description, and does not constitute a structural limitation of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.

The charging management module 140 is used to receive charging input from the charger. The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the display screen 194, the camera 193, and the wireless communication module 160. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be provided in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may also be provided in the same device.

The wireless communication function of the electronic device 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor.

The antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the electronic device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna can be used in combination with a tuning switch.

The mobile communication module 150 can provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the electronic device 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic wave radiation via the antenna 1. In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110. In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.

The modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. Then the demodulator transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays an image or video through the display screen 194. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 110 and be provided in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide applications on the electronic device 100 including wireless local area networks (WLAN) (such as wireless fidelity (WI-FI) networks), bluetooth (BT), and global navigation satellites. System (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110. The wireless communication module 160 may also receive the signal to be sent from the processor 110, perform frequency modulation, amplify it, and convert it into electromagnetic waves to radiate through the antenna 2.

In some embodiments, the antenna 1 of the electronic device 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc. The GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).

The electronic device 100 implements a display function through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, connected to the display 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs, which execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos, and the like. The display screen 194 includes a display panel. The display panel can use liquid crystal display (LCD), organic light-emitting diode (OLED), active matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode). AMOLED, flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (QLED), etc. In some embodiments, the electronic device 100 may include one or N display screens 194, and N is a positive integer greater than one.

The electronic device 100 can realize a shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, and an application processor.

The ISP is used to process the data fed back by the camera 193. The camera 193 is used to capture still images or videos. The object generates an optical image through the lens and is projected to the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transfers the electrical signal to the ISP to convert it into a digital image signal. ISP outputs digital image signals to DSP for processing. DSP converts digital image signals into standard RGB, YUV and other formats of image signals. In some embodiments, the electronic device 100 may include one or N cameras 193, and N is a positive integer greater than one.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the electronic device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 can play or record videos in multiple encoding formats, such as: moving picture experts group (MPEG) 1, MPEG2, MPEG3, MPEG4, and so on.

NPU is a neural-network (NN) computing processor. By drawing on the structure of biological neural networks, for example, the transfer mode between human brain neurons, it can quickly process input information, and it can also continuously self-learn. Through the NPU, applications such as intelligent cognition of the electronic device 100 can be realized, such as image recognition, face recognition, voice recognition, text understanding, and so on.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example, save music, video and other files in an external memory card.

The internal memory 121 may be used to store computer executable program code, where the executable program code includes instructions. The processor 110 executes various functional applications and data processing of the electronic device 100 by running instructions stored in the internal memory 121. The internal memory 121 may include a storage program area and a storage data area. Among them, the storage program area can store an operating system, at least one application program (such as a sound playback function, an image playback function, etc.) required by at least one function. The data storage area can store data (such as audio data, phone book, etc.) created during the use of the electronic device 100. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like.

The electronic device 100 can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. For example, music playback, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal for output, and is also used to convert an analog audio input into a digital audio signal. The audio module 170 can also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be provided in the processor 110, or part of the functional modules of the audio module 170 may be provided in the processor 110.

The speaker 170A, also called "speaker", is used to convert audio electrical signals into sound signals. The electronic device 100 can listen to music through the speaker 170A, or listen to a hands-free call.

The receiver 170B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the electronic device 100 answers a call or voice message, it can receive the voice by bringing the receiver 170B close to the human ear.

The microphone 170C, also called "microphone", "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can make a sound by approaching the microphone 170C through the human mouth, and input the sound signal into the microphone 170C. The electronic device 100 may be provided with at least one microphone 170C. In other embodiments, the electronic device 100 may be provided with two microphones 170C, which can implement noise reduction functions in addition to collecting sound signals. In other embodiments, the electronic device 100 may also be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and realize directional recording functions.

Exemplarily, in this application, when the acoustic wave communication technology is used to transmit the acoustic wave signal, the sending device can transmit the audio signal through the microphone and the loudspeaker, so as to transmit the audio signal to another electronic device located near the electronic device to realize the communication between the devices. Transmission of sound waves. It should be understood that the acoustic wave communication technology is more suitable for short-distance, small data transmission. In this application, during the transmission of acoustic signals, the operating distance between devices that meet the requirements of reliable transmission is 30cm. When the distance between the devices is greater than 50cm, it is almost impossible to decode the acoustic signal, so the WI is transmitted through the acoustic wave communication technology. -FI ability can resist attack. In other words, when the attacker cannot approach from too close a distance, the sonic signal cannot be decoded to obtain WI-FI information. Therefore, the application of sonic communication technology to the process of establishing a connection between devices can ensure the reliability of information transmission.

The earphone interface 170D is used to connect wired earphones. The earphone interface 170D may be a USB interface 130, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association of the USA (CTIA) standard interface.

In addition, the electronic device 100 shown in FIG. 1 also includes a variety of sensors. For example, the pressure sensor 180A is used to sense pressure signals and can convert the pressure signals into electrical signals; the gyroscope sensor 180B can be used to determine electronic The movement posture of the device 100; the air pressure sensor 180C is used to measure air pressure. The magnetic sensor 180D includes a Hall sensor; the acceleration sensor 180E can detect the acceleration of the electronic device 100 in various directions (generally three axes); the distance sensor 180F is used to measure the distance, and the electronic device 100 can measure the distance by infrared or laser; The proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode; the ambient light sensor 180L is used to perceive the brightness of the ambient light, and the electronic device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived brightness of the ambient light; fingerprints The sensor 180H is used to collect fingerprints; the temperature sensor 180J is used to detect temperature; the touch sensor 180K can be set on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, and the touch sensor 180K is used to detect touches acting on or near it Operation; the bone conduction sensor 180M can obtain the vibration signal, and the audio module 170 can parse the voice signal based on the vibration signal of the acoustic part vibrating bone mass obtained by the bone conduction sensor 180M to realize the voice function. In addition to various sensors, the electronic device 100 also includes a button 190, such as a power-on button, a volume button, etc. The button 190 may be a mechanical button or a touch button. The electronic device 100 may receive key input, and generate key signal input related to user settings and function control of the electronic device 100. The motor 191 can generate vibration prompts, and the motor 191 can be used for incoming call vibrating prompts, and can also be used for touch vibration feedback. For other components or modules that the electronic device 100 may include, this application will not repeat them.

The software system of the electronic device 100 may adopt a layered architecture, an event-driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture. It should be understood that the method for establishing a connection between devices provided in the embodiments of the present application may be applicable to systems such as Android and iOS, and the method has no dependency on the system platform of the device. Here, an Android system with a layered architecture will be taken as an example to illustrate a possible software structure of the electronic device 100.

FIG. 2 is a software structure block diagram of the electronic device 100 according to an embodiment of the present application. The layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Communication between layers through software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, the application layer, the application framework layer, the Android runtime and system library, and the kernel layer. The application layer can include a series of application packages.

As shown in FIG. 2, the application package may include applications such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, short message, gallery, call, and mobile phone clone provided in the embodiment of the application.

In this application, the acoustic wave communication function of the electronic device can be independently integrated into an application shared library. After the user starts the mobile phone cloned application at the application layer, the application shared library can be called to call the acoustic wave communication function. The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer. Specifically, in the process of establishing a connection between the devices of the present application, after calling the application shared library, any interface of the application framework layer can be called. The arbitrary interface can be the native interface of the system or other newly added functional interfaces. The method for establishing a connection between devices provided in the embodiment is implemented.

The application framework layer can also include some predefined functions.

As shown in Figure 2, the application framework layer can include a window manager, a content provider, a view system, a phone manager, a resource manager, and a notification manager.

The window manager is used to manage window programs. The window manager can obtain the size of the display, determine whether there is a status bar, lock the screen, take a screenshot, etc.

The content provider is used to store and retrieve data and make these data accessible to applications. The data may include videos, images, audios, phone calls made and received, browsing history and bookmarks, phone book, etc.

The view system includes visual controls, such as controls that display text, controls that display pictures, and so on. The view system can be used to build applications. The display interface can be composed of one or more views. For example, a display interface that includes a short message notification icon may include a view that displays text and a view that displays pictures.

The phone manager is used to provide the communication function of the electronic device 100. For example, the management of the call status (including connecting, hanging up, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.

The notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and it can disappear automatically after a short stay without user interaction. For example, the notification manager is used to notify download completion, message reminders, and so on. The notification manager can also be a notification that appears in the status bar at the top of the system in the form of a chart or a scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window. For example, text messages are prompted in the status bar, prompt sounds, electronic devices vibrate, and indicator lights flash.

Android runtime includes core libraries and virtual machines. Android runtime is responsible for the scheduling and management of the Android system.

The core library consists of two parts: one part is the function functions that the java language needs to call, and the other part is the core library of Android.

The application layer and the application framework layer run in a virtual machine. The virtual machine executes the java files of the application layer and the application framework layer as binary files. The virtual machine is used to perform functions such as object life cycle management, stack management, thread management, security and exception management, and garbage collection.

The system library can include multiple functional modules. For example: surface manager (surface manager), media library (media libraries), 3D graphics processing library (for example: OpenGL ES), 2D graphics engine (for example: SGL), etc.

The surface manager is used to manage the display subsystem and provides a combination of 2D and 3D layers for multiple applications.

The media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

The 3D graphics processing library is used to realize 3D graphics drawing, image rendering, synthesis, and layer processing.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is the layer between hardware and software. The kernel layer contains at least display driver, camera driver, audio driver, and sensor driver.

Exemplarily, in the process of establishing a connection between the devices of the present application, after the application shared library is called, the application shared library may further call any interface of the application framework layer. For example, the content provider can obtain WI-FI capability information and generate audio signals. The shared library is used to obtain audio signals from the content manager. After the modulation and coding process integrated in the shared library, the audio driver at the core layer is called to convert the audio The signal is sent out in the form of sound waves, and this application does not limit the cooperative working mode between the application layer and any interface of the application framework layer.

It should be understood that in the process of establishing a connection between the devices of the present application, the application of the application layer of the device can call the functions of other layers, borrow the capabilities of the device, implement the connection process, and transmit data.

Exemplarily, after a connection is established between the devices of the present application, any interface of the application framework layer is called to obtain data of the old mobile phone, such as data such as contacts, pictures, and video files, and transfer the obtained data to the new mobile phone.

For ease of understanding, the following embodiments of the present application will take the electronic device with the structure shown in FIG. 1 and FIG. 2 as an example, combined with the accompanying drawings and application scenarios, taking data migration between a new mobile phone and an old mobile phone, and mobile phone cloning as an example. The method for establishing a connection between devices provided in the embodiments of the present application is specifically described.

Figure 3 is a schematic diagram of an example of a graphical user interface (GUI) for establishing a connection between devices provided by an embodiment of the present application. This application will use a mobile phone as an electronic device. Specifically, the user changes the mobile phone and connects two mobile phones. For example, the method for establishing a connection between the devices provided in this application is introduced in detail.

In the process of transferring data between the new mobile phone and the old mobile phone, operations as shown in FIG. 3 can be performed. Wherein, Figure 3(a) shows that in the unlock mode of the mobile phone, the screen display system of the mobile phone displays the main interface 301 currently output, and the main interface 301 displays a variety of applications (application, App), for example Albums, music, settings, phone cloning, etc. It should be understood that the interface content 301 may also include other more application programs, which is not limited in this application.

Specifically, FIG. 3 shows a schematic diagram of a graphical user interface of a new mobile phone in the process of establishing a connection between devices. As shown in (a) in FIG. 3, the user can click on the "mobile phone clone" on the main interface 301, and in response to the user's click operation, the mobile phone displays an interface 302 as shown in (b) in FIG. The interface 302 can be used for the user to set the current mobile phone, for example, click the "This is a new mobile phone" option on the new mobile phone to set the current mobile phone as a mobile phone with a hotspot for receiving data. As shown in Figure 3 (b), after the user clicks on the "This is a new phone" option, the user enters the interface 303 shown in Figure 3 (c). This interface 303 is used for the user to select the type of old mobile phone. For example, if the old mobile phone is a Huawei mobile phone, click the "Huawei" option, and the user can select the corresponding option according to the type of the old mobile phone.

In response to the user's click operation, the mobile phone enters the interface 304 shown in Figure 3 (d). The interface 304 includes the QR code and connection password for the WI-FI connection provided by the new mobile phone for the old mobile phone. The old mobile phone You can connect to the hotspot of the new mobile phone by scanning the QR code of the interface 304 and input the connection password, thereby establishing a WI-FI connection with the new mobile phone. On this interface 304, you can also include more prompt messages, such as "Open the phone clone on the old phone, select this is the old phone, scan the QR code below to establish a connection", "If you cannot connect by scanning the QR code, please click At the bottom of the scan code interface of the old mobile phone, click manual connection", "If the old mobile phone does not have a mobile phone clone, please click here to install" and other prompt messages are used to guide the user's operation. This application does not control the content and quantity of the prompt information included in the interface content. Make a limit. Figure 4 shows a schematic diagram of the graphical user interface of the old mobile phone in the process of establishing a connection between the devices. As shown in (a) in FIG. 4, the user can click on "Mobile Clone" on the main interface 401 of the old mobile phone. In response to the user's click operation, the mobile phone displays an interface 402 as shown in (b) in FIG. 4. This interface 402 can be used for the user to set the current mobile phone. For example, click the "This is an old mobile phone" option on the old mobile phone interface 402 to set the current mobile phone as an old mobile phone connected to a hotspot for sending data. As shown in Figure 4 (b), after the user clicks the "This is an old phone" option, the user enters the interface 404 shown in Figure 4 (c), which is used by the user to scan the interface 304 of the new mobile phone. QR code to connect to the hotspot of the new mobile phone to establish a WI-FI connection with the new mobile phone.

As shown in (d) in FIG. 4, after the old mobile phone scans the QR code of the new mobile phone shown in (d) in FIG. 3, it shows the process of establishing a connection between the new mobile phone and the old mobile phone. The display interface 404 of the old mobile phone includes prompt information for prompting the user of the current state of the old mobile phone, such as "connecting to a new mobile phone" or "connecting through sound waves". In addition, the display interface 404 may also include animations for showing the connection process of the current new mobile phone and the old mobile phone, such as dynamic ripples of sound waves, etc. The dynamic ripples may be presented on the display interface 404 in the form of flashing. This is not limited.

After the WI-FI connection between the new mobile phone and the old mobile phone is established, the new mobile phone can jump to the interface 305 shown in Figure 3 (e), which is used to prompt the user that the new mobile phone and the old mobile phone have established a connection.

Correspondingly, on the old mobile phone, the interface 405 shown in Figure 4 (e) can be jumped to display. The interface 405 includes a list of data that can currently be transferred to the new mobile phone, such as contacts, information, call history, For different data types such as recordings and pictures, the user selects the data in the data list that needs to be transferred to the new mobile phone, and then clicks the "Start Migration" option. In response to the user's migration operation, the data from the old mobile phone is sent to the new mobile phone.

The above introduces the user's operation process when the new mobile phone and the old mobile phone establish a Wi-Fi connection. Figure 5 is an example of interaction diagram of the new mobile phone and the old mobile phone to establish a WIFI connection. Among them, the new mobile phone 10 is used as a hotspot, which can also be called an access point (access point, AP), and the old mobile phone 20 is used as a station to connect to the hotspot, as shown in FIG. 5, which includes the following steps:

501. The new mobile phone 10 transmits the first hotspot information of the new mobile phone 10 to the old mobile phone 20 by generating and displaying a two-dimensional code.

502. The old mobile phone 20 scans the two-dimensional code of the new mobile phone 10 to obtain the first hotspot information of the new mobile phone 10.

Optionally, the hotspot information of the new mobile phone 10 may include service set identifier (SSID) information. Among them, the SSID includes the extended service set identifier (ESSID) and the basic service set identifier (BSSID), which are used to distinguish different networks. The SSID can be understood as the name of a local area network. There are 32 characters. The old mobile phone 20 obtains the hotspot information of the new mobile phone 10 by scanning the two-dimensional code provided by the new mobile phone 10. In this application, the first hotspot information of the new mobile phone 10 includes the first SSID.

In step 501, the new mobile phone 10 synthesizes a two-dimensional code by combining the first SSID and WI-FI password information, and displays it on the new mobile phone 10 as shown in Figure 3 (d), and the old mobile phone 20 scans the QR code. The two-dimensional code obtains the first hot spot information of the new mobile phone 10.

In addition, in a possible implementation manner, the new mobile phone 10 may also send the hotspot information of the new mobile phone 10 to the old mobile phone 20 through the acoustic wave communication technology.

Or, in another possible implementation manner, the new mobile phone 10 may also send the information of the first network hotspot to the old mobile phone 20 by way of Bluetooth communication technology.

503. The old mobile phone 20 sends WI-FI capability information to the new mobile phone 10 through the acoustic wave communication technology.

In steps 501 to 502, the old mobile phone 20 obtains the first hotspot information of the new mobile phone 10 sent by the new mobile phone 10 by scanning the two-dimensional code, and then transmits the WI-FI capability information of the old mobile phone 20 itself to the new mobile phone 10. After the old mobile phone 20 scans the QR code of the new mobile phone 10, it can send a sound wave signal to the new mobile phone 10. In other words, the old mobile phone 20 scans the QR code of the new mobile phone 10 to trigger the old mobile phone 20 to send the sound wave signal to the new mobile phone. The sound wave signal includes WI-FI capability information of the old mobile phone 20.

It should be understood that the acoustic wave communication technology is more suitable for short-distance, small data transmission, and because it transmits relatively few data packets, it can achieve successful short-distance transmission within a short period of time (1s-2s). In this application, the process of establishing a WI-FI connection between devices can be realized based on the low-cost, lightweight transmission, and short time-consuming characteristics of acoustic wave communication technology. In addition, in the transmission process of the acoustic signal in this application, the operating distance that meets the requirement of reliable transmission is 30 cm. When the distance between the new mobile phone and the old mobile phone is greater than 50 cm, it is almost impossible to decode the acoustic signal. Since the energy of the sound wave signal is attenuated in the air as the distance increases, the sound wave communication technology can naturally resist attacks. In other words, when the attacker cannot get too close, he cannot decode the sound wave signal to obtain WI-FI information. Therefore, applying the sound wave communication technology to the process of establishing a connection between devices can ensure the reliability of information transmission. For example, application It is used for data migration, phone cloning, etc. between new and old phones.

Optionally, the WI-FI capability information may include at least one type of information such as WI-FI standard number, operating frequency range, compatibility, bandwidth, physical transmission rate, and modulation mode, which is not limited in this application.

Exemplarily, Table 1 lists the content that the WI-FI capability information of the old mobile phone 20 may include.

Table 1

Specifically, the WI-FI standard number in Table 1 may be related standards of the Institute for Electrical and Electronic Engineers (IEEE), such as IEEE802.11n, IEEE802.11ac, etc.; the working frequency range may be 2.4 The frequency range of GHz-2.4835GHz, or the frequency range of 5.150GHz-5.850GHz; compatibility, that is, the WI-FI version that old mobile phones can be compatible with, so I won’t go into details here.

In this application, the first hotspot information includes the first SSID, the second hotspot information includes the second SSID, and the first SSID is different from the second SSID.

Optionally, the frequency band of the Wi-Fi network corresponding to the second SSID is adapted to the Wi-Fi capability information of the old mobile phone 20. For example, the working frequency band of the Wi-Fi network corresponding to the second SSID is 5 GHz, and the Wi-Fi network corresponding to the first SSID is 5 GHz. The working frequency band of FI network is 2.4GHz.

Exemplarily, taking the WI-FI capability information including the working frequency range and bandwidth of WI-FI as an example, the old mobile phone 20 sends the working frequency range and bandwidth supported by itself to the new mobile phone 10 through sound wave communication. The new mobile phone The working frequency range and bandwidth supported by the old mobile phone 20 can be obtained, so as to determine the set of available channels within the working frequency range.

It should be understood that the new mobile phone 10 can provide different working frequency bands for the old mobile phone 20. For example, the current common working frequency bands of WI-FI are 2.4 GHz frequency band and 5 GHz frequency band. Among them, the 5GHz frequency band has less interference and a faster rate than the 2.4GHz frequency band. When the same amount of data is transmitted, the 5GHz frequency band saves power and has a good user experience. The coverage rate of the current 5GHz frequency band is lower than that of the 2.4GHz frequency band. Specifically, the advantages and disadvantages of both the 2.4GHz frequency band and the 5GHz frequency band are shown in Table 2.

Table 2

According to Table 2, due to the small interference in the 5GHz frequency band, the bandwidth is wide enough to support higher transmission rates, but the coverage rate of the 5GHz frequency band is not high enough, and not all mobile phones can support the transmission of the 5GHz frequency band. When the old mobile phone 20 supports a 5GHz WI-FI connection, a 5GHz WI-FI connection is established with the new mobile phone 10 first, which can ensure a higher transmission rate.

Optionally, the old mobile phone 20 subjects the WI-FI capability information to encoding and modulation processing, and transmits the encoded and modulated WI-FI capability information using sound waves.

Fig. 6 is a schematic diagram of an example of signal coding and modulation processing provided by an embodiment of the present application. Exemplarily, after the old mobile phone 20 obtains the first hotspot information of the new mobile phone 10, the old mobile phone 20 may perform coding and modulation processing on the WI-FI capability information containing itself. For example, as shown in FIG. 6, the WI-FI capability information of the old mobile phone 20 can be sequentially encoded and modulated, time-frequency conversion, and other signal processing processes, and the processed information is sent to the new mobile phone 10 by means of sound waves.

Specifically, the WI-FI capability information can undergo cyclic redundancy check (CRC) check, channel coding, modulation, time-frequency conversion, etc., and the processed information can be sent to the new mobile phone by means of sound waves 10 . Among them, the channel coding can be in the form of convolutional codes. The modulation process can be modulated by, for example, multi-ary differential phase shift keying (quadrature differential phase shift keying, QPSK). Time-frequency transform can pass the modulated signal through fast Fourier. After an inverse fast Fourier transform (IFFT), an audio stream to be sent is generated and sent by the audio device of the old mobile phone 20 (such as the audio module 170 of the electronic device 100 in FIG. 1).

Correspondingly, on the hotspot side, after the new mobile phone 10 receives the audio signal from the audio device of the old mobile phone 20, the inverse process of signal processing is performed. For example, time-frequency conversion is performed on the received audio signal, demodulation, channel decoding, and CRC check are performed to obtain the original bit information. Among them, demodulation can be understood as the inverse process of modulation, and channel decoding can be understood as the inverse process of channel coding. In other words, how to generate an audio signal containing its own WI-FI capability information on the old mobile phone 20? The audio signal is analyzed through the corresponding reverse process, thereby obtaining the WI-FI capability information of the old mobile phone 20.

Optionally, when the present application sends the WI-FI capability information through the acoustic wave communication technology, the frequency of the acoustic wave signal is greater than 10 kHz.

In addition, when the old mobile phone 20 sends a sound wave signal to the new mobile phone 10, the old mobile phone 20 may display a prompt interface indicating that the sound wave signal is being sent. Exemplarily, the old mobile phone 20 may display a prompt interface as shown in (d) in FIG. 4. Through the above technical solution, the old mobile phone 20 uses the acoustic wave communication technology to transmit its own WI-FI capability information to the new mobile phone 10. The frequency band used by the acoustic wave communication technology is a high frequency band above 10KHz, which avoids the place where people make sounds. ~6KHz frequency band, which can reduce in-band interference in application scenarios, ensure the success rate of sound wave transmission, and improve the reliability of transmission between old and new mobile phones.

Optionally, when the old mobile phone 20 sends its own WI-FI capability information to the new mobile phone 10, the new mobile phone 10 may monitor the audio signal of the old mobile phone 20 within a certain period of time.

Exemplarily, after the old mobile phone 20 obtains the hotspot information of the new mobile phone 10, the new mobile phone 10 monitors whether the old mobile phone 20 sends an audio signal within 5 seconds. After 5 seconds, the new mobile phone 10 may default to the old mobile phone 20 not sending an audio signal.

504. The new mobile phone 10 receives the sound wave signal sent by the old mobile phone 20, decodes and obtains the WI-FI capability information of the old mobile phone, and sends second hotspot information according to the WI-FI capability information of the old mobile phone 20. The second hotspot information includes the second SSID.

Optionally, the working frequency band of the Wi-Fi network corresponding to the second SSID is 5 GHz, and the working frequency band of the Wi-Fi network corresponding to the first SSID is 2.4 GHz.

Exemplarily, the new mobile phone 10 determines that the old mobile phone 20 supports a 5GHz WI-FI connection, and sends the 5GHz Wi-FI hotspot to the old mobile phone 20.

In this application, through steps 503-504, the old mobile phone 20 uses acoustic wave communication technology to transmit its own WI-FI capability information to the new mobile phone 10. The new mobile phone can know the 5GHz WI-FI connection supported by the old mobile phone 20. , The new mobile phone 10 directly turns on the 5GHz WI-FI hotspot, and sends the 5GHz WI-FI hotspot information to the old mobile phone 20, that is, sends the SSID of the 5GHz WI-FI network.

It should be understood that after the new mobile phone 10 turns on the 5GHz WI-FI hotspot, from the user's perspective, there is no need to rescan the QR code to connect, only the communication channel between the old mobile phone 20 and the new mobile phone 10 needs to be switched.

505, the old mobile phone 20 scans the surrounding 5GHz WI-FI hotspot, scans the SSID of the 5GHz WI-FI hotspot sent by the new mobile phone 10, and sends a connection request to establish a 5GHz WI-FI connection with the new mobile phone 10.

It can be understood that the process of scanning the SSID and sending the connection request by the old mobile phone 20 can refer to the related implementation of establishing a WI-FI connection in the prior art, which is not limited in the embodiment of the present invention. The 5GHz WI-FI connection can be accessed without a password or can be accessed only with a password.

For methods that require a password, you can use the obtained password for the 2.4GHz WI-FI connection. That is, the connection request sent by the old mobile phone carries the SSID of the 5GHz Wi-Fi hotspot and the password of the 2.4GHz Wi-Fi connection, and the new mobile phone can be connected based on the SSID of the 5GHz Wi-Fi network and the 2.4GHz Wi-Fi connection. The password is verified.

506, the old mobile phone 20 and the new mobile phone 10 transmit data through a channel in the 5 GHz frequency band.

Through the above process, the new mobile phone 10 does not need to establish a 2.4GHz Wi-Fi connection with the old mobile phone 20 first, and can directly obtain the Wi-Fi capability information of the old mobile phone 20. After the new mobile phone 10 determines the capability information of the old mobile phone 20, The verification process of capability intersection information can be carried out.

Exemplarily, the first communication channel set supported by the new mobile phone 10, the second communication channel set supported by the old mobile phone 20, and the intersection between the first communication channel set and the second communication channel set, we call it the "third communication channel" "If the third communication channel type includes a channel in the 5 GHz frequency band, the new mobile phone 10 and the old mobile phone 20 can determine that both parties can support Wi-Fi connections in the 5 GHz frequency band.

Through the verification process of capability intersection information between the devices described above, it can be determined that both the new mobile phone 10 and the old mobile phone 20 support WI-FI connections in the 5 GHz frequency band. The new mobile phone 10 directly turns on the WI-FI hotspot of the 5GHz frequency band for the old mobile phone 20. At this time, the new mobile phone 10 and the old mobile phone 20 can establish a WI-FI connection in the 5GHz frequency band and transmit data through the channel of the 5GHz frequency band.

If the capability information of the old mobile phone 20 indicates that the old mobile phone 20 does not support transmission in the 5GHz frequency band, the new mobile phone 10 turns on the 2.4GHz WI-FI hotspot for the old mobile phone 20, and the new mobile phone 10 and the old mobile phone 20 can establish WI-FI in the 2.4GHz frequency band. FI connects and transmits data through the channel in the 2.4GHz frequency band.

In the existing solution, after the old mobile phone 20 scans the QR code of the new mobile phone 10 and obtains the hotspot information of the new mobile phone 10, it can establish a Wi-Fi connection in the 2.4 GHz frequency band with the new mobile phone. After the new mobile phone 10 and the old mobile phone 20 establish a 2.4 GHz WI-FI connection, the new mobile phone 10 and the old mobile phone 20 can exchange capability information. For example, a verification process of capability intersection information is performed between the new mobile phone 10 and the old mobile phone 20. Exemplarily, the new mobile phone 10 and the old mobile phone 20 currently communicate through the 2.4 GHz frequency band, the first communication channel set supported by the new mobile phone 10, the second communication channel set supported by the old mobile phone 20, the first communication channel set and the second communication The intersection between the channel sets, we call it the "third communication channel". If the third communication channel includes a channel in the 5GHz frequency band, the new mobile phone 10 and the old mobile phone 20 can determine that both parties can support WI-FI in the 5GHz frequency band. connection. Through the verification process of the capability intersection information between the devices, it can be determined that both the new mobile phone 10 and the old mobile phone 20 support WI-FI connections in the 5 GHz frequency band. After that, the old mobile phone 20 (site) can be switched from the 2.4 GHz frequency band to the 5 GHz frequency band. At this time, the new mobile phone 10 and the old mobile phone 20 need to be reconnected. It can be seen that the existing WI-FI connection switching method takes a long time to realize the reconnection, which can be up to 10s, and the number of interactions is large and the time is prolonged, which affects the user experience.

Through the technical solution of the embodiment of the present application, before the new mobile phone 10 establishes a connection with the old mobile phone 20, the old mobile phone 20 transmits its own WI-FI capability information to the new mobile phone 10 through sound waves, and the new mobile phone 10 can obtain the information of the old mobile phone 10. Supported WI-FI frequency points and other information, so that the new mobile phone directly opens the WI-FI hotspot for the old mobile phone 20 according to the WI-FI frequency band supported by the old mobile phone 10, and the old mobile phone 20 can directly establish a WI-FI connection with the new mobile phone 10. Reduce the interaction process between the old mobile phone 20 and the new mobile phone 10 from 2.4GHz WI-FI connection to 5GHz WI-FI connection, accelerate and shorten the time for switching WI-FI connections between devices, and improve user experience.

In addition, in the process of sending WI-FI capability information from the old mobile phone 20 to the new mobile phone 10, it can be transmitted through the WI-FI frequency channel supported by both the new mobile phone and the old mobile phone. The mobile phone 10 and the old mobile phone 20 can acquire the ability of the bottom layer of the channel. In the subsequent process of establishing a WI-FI connection, information can be directly transmitted through the determined channel, which improves the reliability of the transmission. The implementation process of the above technical solution depends on less hardware, and only requires two devices to have audio devices (such as microphones and speakers). For example, the old mobile phone 20 can send sound wave signals through the audio device, and the new mobile phone 10 can receive audio through the audio device. signal.

It should also be understood that the above technical solution can be applied to systems such as Android, iOS, etc., has no dependency relationship with the system platform of the device, and has strong applicability.

In a possible implementation manner, optionally, the sound wave signal sent by the old mobile phone 20 to the new mobile phone 10 includes the WI-FI capability information that has been encoded and modulated and encrypted by the public key.

Optionally, on the side of the old mobile phone 20, the old mobile phone 20 encrypts the WI-FI capability information with a public key, and then encodes and modulates the ciphertext of the WI-FI capability information encrypted by the public key, and then uses sound waves. Send the encoded and modulated information.

Correspondingly, on the side of the new mobile phone 10, after receiving the sonic signal, the sonic signal is first demodulated and decoded, and then the WI-FI capability information is obtained by decrypting the private key corresponding to the public key.

It should be understood that there are two types of keys: encryption keys and decryption keys. The sender can use the encryption key to encrypt the signal, and the receiver uses the decryption key to decrypt the ciphertext signal. Among them, the encryption key is generally public, called the public key. The public key can be derived by cloning itself, and the generated public key can be published and will not be stolen; the method of disclosure is not limited. For example, the public key can be sent directly to the receiving end via email, or it can be announced in other ways.

Correspondingly, the decryption key cannot be made public and is called the private key. The public key and the private key have a one-to-one correspondence. A pair of public and private keys is collectively called a "key pair". The ciphertext encrypted by the public key must be decrypted by the private key paired with the public key. The two keys in the key pair have a very close relationship, so the public key and the private key cannot be generated separately. Generally, the public key is sent to others, and the private key is reserved for your own use. This is an asymmetric encryption method, such as RSA encryption. This application does not limit the encryption method of the acoustic signal containing the WI-FI capability information of the old mobile phone.

Specifically, in step 501, the new mobile phone 10 transmits the first hotspot information of the new mobile phone 10 to the old mobile phone 20 by generating a two-dimensional code. The two-dimensional code may include SSID, WI-FI password and public key information.

In step 502, the old mobile phone 20 scans the two-dimensional code to obtain the first hotspot information and public key information of the new mobile phone, and encrypts the WI-FI capability information with the public key, and then the cipher text is encoded and modulated.

In step 503, the old mobile phone 20 transmits to the new mobile phone 10 the WI-FI capability information that has been coded and modulated and encrypted by the public key through the acoustic wave communication technology. In step 504, the new mobile phone 10 receives the sound wave signal sent by the old mobile phone 20, first demodulates and decodes the sound wave signal, and then decrypts the WI-FI capability information through the private key corresponding to the public key. The new mobile phone 10 sends second hotspot information matching the WI-FI capability of the old mobile phone.

Steps 505-506 refer to the aforementioned process, which will not be repeated here.

Through the above technical solution, the old mobile phone 20 transmits its own WI-FI capability information to the new mobile phone 10 by encrypting the WI-FI capability information, and then encoding and modulating, and transmitting through sound waves, which can increase the transmission. The security of the process, when an attacker appears nearby or connects to WI-FI first, the security of the data can also be ensured through the encryption of the WI-FI capability information. At the same time, it is ensured that the new mobile phone can accurately obtain the WI-FI frequency points supported by the old mobile phone 10, so that the new mobile phone directly opens the WI-FI hotspot for the old mobile phone 20 according to the WI-FI frequency point supported by the old mobile phone 10, reducing the number of old mobile phones. The interaction process between the mobile phone 20 and the new mobile phone 10 is switched from a 2.4GHz WI-FI connection to a 5GHz WI-FI connection, which speeds up the time for establishing a WI-FI connection and improves the user experience.

It should be understood that the above takes the process of a user changing mobile phones and data transmission between two mobile phones as an example, and introduces the method for establishing a WI-FI connection between the devices provided in this application. This method can also be applied to a variety of smart terminal devices. , Such as smart glasses, bracelets, watches, etc., which are not limited in this application.

It should also be understood that, when establishing a connection between devices described above, an established network hot spot is taken as an example, such as the currently used 2.4 GHz frequency band and 5 GHz frequency band, which is not limited in this application.

It can be understood that, in order to implement the above-mentioned functions, an electronic device includes hardware and/or software modules corresponding to each function. In combination with the algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application in combination with the embodiments to implement the described functions, but such implementation should not be considered as going beyond the scope of the present application.

In this embodiment, the electronic device can be divided into functional modules according to the foregoing method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

In the case of dividing each functional module corresponding to each function, FIG. 7 is a schematic diagram of an example of possible composition of an electronic device provided by an embodiment of the present application. As shown in FIG. 7, the electronic device 700 may include: a processor 710, a memory 720, and Transceiver 730. The processor 710 may be used to control and manage the actions of the electronic device, for example, it may be used to support the electronic device to execute the steps introduced in the above method 500. The memory 720 may be used to support the electronic device to execute and store program codes and data. The transceiver 730, in this application, may correspond to an audio device, such as a microphone or a speaker, and may be used to support sound wave communication between a new mobile phone and an old mobile phone.

Among them, the processor 710 may implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor 710 may also be a combination that implements computing functions, for example, it includes a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, and so on. The transceiver 730 may specifically be an audio device, a radio frequency circuit, a Bluetooth chip, a Wi-Fi chip, and other devices that interact with other electronic devices.

In an embodiment, the electronic device involved in this embodiment may be a device having the structure shown in FIG. 1.

This embodiment also provides a computer storage medium. The computer storage medium stores computer instructions. When the computer instructions run on an electronic device, the electronic device executes the steps of the above-mentioned related method to realize the inter-device establishment in the above-mentioned embodiment. Method of connection.

This embodiment also provides a computer program product, which when the computer program product runs on a computer, causes the computer to execute the above-mentioned related steps, so as to implement the method for establishing a connection between devices in the above-mentioned embodiment.

In addition, the embodiments of the present application also provide a device. The device may specifically be a chip, component or module. The device may include a processor and a memory connected to each other. The memory is used to store computer execution instructions. When the device is running, The processor can execute the computer-executable instructions stored in the memory, so that the chip executes the method for establishing a connection between the devices in the foregoing method embodiments.

Among them, the electronic device, computer storage medium, computer program product, or chip provided in this embodiment are all used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding method provided above. The beneficial effects of the method will not be repeated here.

Through the description of the above embodiments, those skilled in the art can understand that for the convenience and conciseness of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function can be assigned to different functions according to needs. The function module is completed, that is, the internal structure of the device is divided into different function modules to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or It can be integrated into another device, 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 indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate. The parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. 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 application 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 readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product, and the software product is stored in a storage medium. It includes several instructions to make a device (may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the methods in the various embodiments of the present application. The foregoing storage media include: U disk, mobile hard disk, read only memory (read only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program codes.

The above content is only the specific implementation of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Covered in the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for establishing a connection between devices, characterized in that it includes:

The sending device obtains first hotspot information of the receiving device, where the first hotspot information includes a first service set identifier SSID;

The sending device sends a sound wave signal to the receiving device, where the sound wave signal includes the wireless fidelity WI-FI capability information of the sending device that has undergone coding and modulation processing, so that the receiving device can be based on the WI-FI of the sending device. -FI capability information sends second hotspot information of the receiving device, where the second hotspot information includes a second SSID;

The sending device sends a request for establishing a WI-FI connection with the receiving device according to the second hotspot information.
The method according to claim 1, wherein the acquiring, by the sending device, the first hotspot information of the receiving device comprises:

The sending device extracts the first SSID and the corresponding first password from the two-dimensional code by scanning the two-dimensional code displayed by the receiving device.
The method according to claim 1 or 2, wherein before the sending device sends the acoustic signal to the receiving device, the method further comprises:

The sending device obtains the public key of the key pair;

The sending device encrypts the WI-FI capability information by using the public key;

The sound wave signal sent by the sending device to the receiving device includes the WI-FI capability information that has undergone coding and modulation processing and has been encrypted by the public key.
The method according to any one of claims 1 to 3, wherein the WI-FI capability information includes the WI-FI standard number supported by the sending device, working frequency range, compatibility, bandwidth, physical At least one of transmission rate and modulation method.
The method according to any one of claims 1 to 4, wherein the frequency of the acoustic signal is greater than 10 kHz.
The method according to any one of claims 1 to 5, wherein the method further comprises:

When the sending device sends a sound wave signal to the receiving device, the sending device displays a prompt interface indicating that the sound wave signal is being sent.
7. The method according to any one of claims 1 to 6, wherein the first SSID is different from the second SSID;

The working frequency band of the Wi-Fi network corresponding to the second SSID is adapted to the Wi-FI capability information of the sending device.
The method according to claim 7, wherein the working frequency band of the WI-FI network corresponding to the second SSID is 5 GHz;

The request for establishing a WI-FI connection with the receiving device carries the second SSID and the first password.
A method for establishing a connection between devices, characterized in that it includes:

The receiving device transfers the first hotspot information of the receiving device to the sending device, where the first hotspot information includes a first service set identifier SSID;

Receiving, by the receiving device, an acoustic wave signal sent by the sending device, where the acoustic wave signal includes the wireless fidelity WI-FI capability information of the sending device that has undergone coding and modulation processing;

Sending, by the receiving device, second hotspot information according to the WI-FI capability information of the sending device, where the second hotspot information includes a second SSID;

The receiving device receives a request for establishing a WI-FI connection sent by the sending device according to the second hotspot information; the receiving device establishes a WI-FI connection with the sending device according to the request for establishing a WI-FI connection , The request for establishing the WI-FI connection includes the second SSID.
The method according to claim 9, wherein the transferring, by the receiving device to the sending device, the first hotspot information of the receiving device comprises:

The receiving device generates and displays a two-dimensional code, and the two-dimensional code includes the first SSID and the corresponding first password;

The receiving device transmits the first hotspot information to the sending device through the two-dimensional code.
The method according to claim 9 or 10, wherein before the receiving device receives the acoustic wave signal sent by the sending device, the method further comprises:

The receiving device sends the public key of the key pair to the sending device; and after the receiving device receives the sound wave signal sent by the sending device, the method further includes:

The receiving device demodulates and decodes the sound wave signal sent by the sending device to obtain the WI-FI capability information encrypted by the public key;

The receiving device decrypts to obtain the WI-FI capability information through the private key corresponding to the public key.
The method according to any one of claims 9 to 11, wherein the WI-FI capability information includes the WI-FI standard number supported by the sending device, working frequency range, compatibility, bandwidth, physical At least one of transmission rate and modulation method.
The method according to any one of claims 9 to 12, wherein the frequency of the acoustic signal is greater than 10 kHz.
The method according to any one of claims 9 to 13, wherein the first SSID is different from the second SSID;

The frequency band of the Wi-Fi network corresponding to the second SSID is adapted to the Wi-FI capability information of the sending device.
The method according to claim 14, wherein the working frequency band of the WI-FI network corresponding to the second SSID is 5 GHz; and the request for establishing a WI-FI connection sent by the sending device according to the second hotspot information Carry the second SSID and the first password.
An electronic device, characterized by comprising: one or more processors; a memory; and one or more programs, wherein the one or more programs are stored in the memory, when the one or more When the program is executed by the processor, the electronic device is caused to execute the method for establishing a connection between devices according to any one of claims 1 to 15.
A computer storage medium, characterized by comprising computer instructions, when the computer instructions run on an electronic device, cause the electronic device to execute the connection between the devices according to any one of claims 1 to 15 Methods.
A computer program product, characterized in that, when the computer program product runs on a computer, the computer is caused to execute the method for establishing a connection between devices according to any one of claims 1 to 15.