CN114449492B

CN114449492B - Data transmission method and terminal equipment

Info

Publication number: CN114449492B
Application number: CN202011218335.2A
Authority: CN
Inventors: 康旭; 赵彦欣; 王拓
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2023-01-06
Anticipated expiration: 2040-11-04
Also published as: CN114449492A; WO2022095581A1

Abstract

The application provides a data transmission method and terminal equipment, and relates to the technical field of terminals, wherein the method comprises the steps that a first terminal determines that first data are transmitted through a first link with a second terminal, and if the first terminal determines that the transmission speed of the first link is smaller than the average transmission speed of a second link and a third link, the first terminal sends at least part of the first data to the second terminal through the third link and the second link; the second link is a communication link between a third terminal and the second terminal, and the third link is a communication link between the first terminal and the third terminal. The technical scheme provided by the application can improve the efficiency of the first data transmitted from the first terminal to the second terminal.

Description

Data transmission method and terminal equipment

Technical Field

The present application relates to the field of terminal technologies, and in particular, to a data transmission method and a terminal device.

Background

In recent years, various terminal devices have been spread and provide great convenience to users. The two terminal devices can communicate with each other, so that data intercommunication and data interchange are achieved, for example, the smart watch can acquire health data of a user and send the health data to the mobile phone.

In the prior art, a communication link can be established between two terminal devices, and then one terminal device transmits data to the other terminal device or based on the communication link. However, since the communication link between the two terminal devices is strictly limited by the hardware condition and the software condition of the two terminal devices, the communication link often has a bottleneck and the transmission efficiency is low.

Disclosure of Invention

In view of this, the present application provides a data transmission method and a terminal device, so as to improve efficiency of transmitting first data from a first terminal device to a second terminal.

In order to achieve the above object, in a first aspect, an embodiment of the present application provides a data transmission method, including:

the first terminal determines to transmit first data through a first link with the second terminal;

if the first terminal determines that the transmission speed of the first link is smaller than the average transmission speed of the second link and the third link, the first terminal sends at least part of the first data to the second terminal through the third link and the second link;

the second link is a communication link between a third terminal and the second terminal, and the third link is a communication link between the first terminal and the third terminal.

It should be noted that the terminal information may be used to describe the identity of the terminal device, so that other terminal devices establish a communication link with the terminal device corresponding to the terminal information based on the terminal information. For example, the terminal information may include a device identifier and may also include a password of the terminal device. Alternatively, the terminal information may include at least one of a bluetooth name and a Service Set Identifier (SSID).

In this embodiment, when the first terminal determines that the first data is transmitted through the first link between the first terminal and the second terminal, if the transmission speed of the first link is less than the average transmission speed of the second link between the second terminal and the third link between the first terminal and the third terminal, the first terminal may transmit at least a part of the first data to the second terminal via the third link and the second link. Because the transmission speed of the first link is less than the average transmission speed of the second link and the third link, the time length that the first terminal takes to transmit the data to the second terminal through the second link and the third link is less than the time length that the first terminal takes to transmit the data to the second terminal through the first link. That is, data transmission between the first terminal and the second terminal is not limited to the hardware condition or the software condition of the first terminal and the second terminal, and the first terminal may select a communication link with a faster transmission speed to transmit at least part of the first data to the second terminal through another third terminal, so as to reduce the duration of transmitting the first data to the second terminal to a certain extent or to the greatest extent, and improve the transmission efficiency.

Optionally, before the first terminal determines that the transmission speed of the first link is lower than an average transmission speed of the second link and the third link, the method further includes, before the first terminal sends at least part of the first data to the second terminal via the third link and the second link:

the first terminal sends a first selection notification to the second terminal, wherein the first selection notification is used for notifying the second terminal to determine the third terminal in M fourth terminals included in a terminal set associated with the first terminal, M is greater than or equal to 1 and is a positive integer;

and the first terminal receives the terminal information of the third terminal, which is sent by the second terminal according to the first selection notification.

The second terminal may obtain a transmission speed of the first link, a transmission speed between an eleventh link between the second terminal and the fourth terminal, and a transmission speed of a twelfth link between the first terminal and the fourth terminal, and if an average transmission speed of the eleventh link and the twelfth link is greater than the transmission speed of the first link, the second terminal may determine the fourth terminal as the third terminal, and accordingly, the second terminal may determine the eleventh link with the fourth terminal as the second link and the twelfth link between the first terminal and the fourth terminal as the third link. In some embodiments, if there is more than one fourth terminal, and the average transmission speed of the eleventh link and the twelfth link corresponding to the fourth terminal is greater than the transmission speed of the first link, the second terminal may select N fourth terminals as the third terminals from the more than one fourth terminals in order from high to low of the average transmission speed of the eleventh link and the twelfth link, where M ≧ N ≧ 1 and N is a positive integer.

It should be noted that the transmission speed of the first link may be obtained by detecting the first link by the first terminal or the second terminal, the average transmission speed of the eleventh link and the twelfth link may be determined according to the transmission speed of the eleventh link and the transmission speed of the second link, the transmission speed of the eleventh link may be obtained by detecting the eleventh link by the second terminal or the fourth terminal, and the transmission speed of the twelfth link may be obtained by detecting the twelfth link by the fourth terminal or the first terminal. In some embodiments, the second terminal may acquire the transmission speed of the first link and the transmission speed of the eleventh link by detecting, and acquire the transmission speed of the twelfth link from the first terminal or the fourth terminal. Of course, the second terminal may also acquire the transmission speed of the first link from the first terminal and/or acquire the transmission speed of the eleventh link from the fourth terminal.

In some embodiments, the twelfth link between the first terminal and any fourth terminal may be a communication link based on the second preset communication protocol, the eleventh link between any fourth terminal and the second terminal may be a communication link based on the first preset communication protocol, and a difference between the maximum transmission speed indicated by the second preset communication protocol and the maximum transmission speed indicated by the first preset communication protocol may be greater than the first speed threshold. The first speed threshold value may be set in advance, and when a difference between the maximum transmission speed indicated by the second preset communication protocol and the maximum transmission speed indicated by the first preset communication protocol is greater than the first speed threshold value, a time period for transmitting data through the twelfth link may be ignored with respect to a time period for transmitting the data through the eleventh link. Then, as long as the transmission speed of the eleventh link is greater than that of the first link, it can be ensured that the time period for the first terminal to transmit the data to the second terminal through the twelfth link and the eleventh link is less than the time period for the first terminal to transmit the data to the second terminal through the first link. Therefore, the second terminal may acquire only the transmission speed of the first link and the transmission speed of the eleventh link, and determine, as the third terminal, fourth terminals corresponding to N eleventh links whose transmission speeds are greater than the transmission speed of the first link. In some embodiments, on the basis of the above, the second intermediate terminal may determine N eleventh links in order of transmission speed from high to low, and determine a fourth terminal corresponding to the N eleventh links as the third terminal, where the transmission speed of the N eleventh links may be greater than the transmission speed of the remaining eleventh links. In addition, when the second terminal determines a fourth terminal as the third terminal, an eleventh link between the second terminal and the fourth terminal may be the second link, and a twelfth link between the fourth terminal and the first terminal may be the third link.

Similarly, if the eleventh link between the second terminal and any one of the fourth terminals is a communication link based on the second preset communication protocol, and the twelfth link between the first terminal and the any one of the fourth terminals is a communication link based on the first preset communication protocol, the second terminal may also obtain only the transmission speed of the first link and the transmission speed of the twelfth link, so as to determine the fourth terminals corresponding to the N twelfth links as the third terminals, and the transmission speeds of the N second links may be greater than the transmission speed of the first link.

It should be noted that the second terminal may reserve an eleventh link between the second terminal and a fourth terminal other than the third terminal, so as to save time consumed for disconnecting the eleventh link, and further improve efficiency.

Optionally, before the first terminal sends the first selection notification to the second terminal, the method further includes:

the first terminal sends association requests to all fourth terminals;

the first terminal receives an association response sent by each fourth terminal based on the association request, wherein the association response carries the terminal information of each fourth terminal;

and the first terminal sends the terminal information of each fourth terminal to the second terminal.

Optionally, the method further comprises:

and the first terminal sends the terminal information of the second terminal to each fourth terminal.

In some embodiments, the fourth terminal may send first association prompt information to the user when receiving the association request, so as to prompt the user to be a resource pool of the first terminal, and send an association response to the first terminal when receiving a confirmation operation of the user. That is, before the fourth terminal is used as the resource pool of the first terminal, the authorization of the user of the fourth terminal may be obtained to ensure the security of the fourth terminal and the subsequent data transmission. Similarly, before storing the terminal information of the fourth terminal, the first terminal and the second terminal may also send a second association prompt message to the user to prompt the user to use the fourth terminal as the resource pool of the first terminal, and store the terminal information of the fourth terminal when receiving the confirmation operation of the user. That is, the first terminal and the second terminal may also obtain the user authorization before determining that the fourth terminal is used as the resource pool of the first terminal, so as to ensure the security of subsequent data transmission.

Wherein the resource pool may be used to provide the terminal device with data of another terminal device with which the resource pool is associated. For example, the fourth terminal may be adapted to provide data from the first terminal to the second terminal when the fourth terminal is a resource pool of the first terminal.

It should be further noted that, when the first terminal sends the terminal information of the fourth terminal to the second terminal, or sends the terminal information of the second terminal to the fourth terminal, a communication link can be established between the second terminal and the fourth terminal, and when the fourth terminal and the second terminal both store the terminal information of the opposite terminal, the subsequent fourth terminal and the second terminal can automatically establish a communication link without other operations such as authentication, which not only improves efficiency, but also reduces user perception and improves user experience.

Optionally, the first data includes a first portion and a second portion, the at least part being the first portion, the method further includes:

the first terminal transmits the second portion over the first link.

Optionally, before the first terminal sends at least part of the first data to the second terminal via the third link and the second link, the method further includes;

the first terminal determines the first part based on the transmission speed of the second link, wherein the data volume of the first part is positively correlated with the transmission speed of the second link; or the like, or, alternatively,

the first terminal determines the first part based on the transmission speed of the third link, wherein the data volume of the first part is positively correlated with the transmission speed of the third link; or the like, or, alternatively,

the first terminal determines the first portion based on the transmission speed of the second link and the transmission speed of the third link, and the data size of the first portion is positively correlated with the transmission speed of the second link and the transmission speed of the third link.

That is, the amount of data transmitted through each link can be distributed appropriately according to the transmission speed of the link, thereby further improving the transmission efficiency.

The first data comprises Q different first parts and P second parts, the first parts and the second parts can carry data synthesis information, the data synthesis information is used for indicating that the Q different first parts and the P second parts are synthesized into the first data, Q = N is larger than or equal to 1, and P is 1 or 0. The data synthesis information may include a data identification of the first data and a location of the first portion or the second portion in the first data. Then, the first terminal transmits Q different first portions of the first data to the second terminal through the N second links and the N third links, respectively, and transmits a second portion of the first data through the first link, and accordingly, the second terminal may, upon receiving the Q different first portions and the P second portions, combine the Q different first portions and the P second portions into the first data according to the data combination information carried in the first portions and the second portions.

Optionally, before the first terminal sends at least part of the first data to the second terminal via the third link and the second link if the first terminal determines that the transmission speed of the first link is less than the average transmission speed of the second link and the third link, the method further includes:

the first terminal determines that the first link is a communication link based on a preset near field communication protocol.

In the near field communication, since the transmission speed is easily affected by the distance between the terminal devices, the stability is poor, and the maximum transmission speed supported by some near field transmission protocols is low, the first terminal may continue to perform the subsequent steps when determining that the first link is a communication link based on a preset near field communication protocol (such as a bluetooth protocol or a zigbee protocol).

In some embodiments, one of the second link and the third link may be a communication link based on a first preset communication protocol, and the other may be a communication link based on a second preset communication protocol, a difference between a maximum transmission speed indicated by the second preset communication protocol and a maximum transmission speed indicated by the first preset communication protocol being greater than a first speed threshold, wherein the first preset communication protocol may include a preset near field communication protocol.

For example, the first terminal and the third terminal may include mobile phones, the second terminal may include a smart watch, and the first link and the second link may be bluetooth communication links, which may be communication links based on a 4G/5G/wireless fidelity (Wi-Fi) protocol.

Alternatively, if the first terminal does not receive the terminal information of the third terminal sent by the second terminal, the second terminal may not acquire the third terminal, that is, the transmission speed of the first link is greater than or equal to the average transmission speed of the second link and the third link, and therefore, the first terminal may send the first data to the second terminal based on the first link.

Optionally, the method further comprises:

the first terminal receives a second selection notification of a fifth terminal;

the first terminal determines a sixth terminal from K seventh terminals included in a terminal set associated with the fifth terminal according to the second selection notification, wherein K is greater than or equal to 1 and is a positive integer;

the first terminal sends the terminal information of the sixth terminal to the fifth terminal;

the fifth link is a communication link between the first terminal and the sixth terminal, the sixth link is a communication link between the fifth terminal and the sixth terminal, and the transmission speed of the fourth link between the first terminal and the fifth terminal is smaller than the average transmission speed of the fifth link and the sixth link.

Optionally, the determining, by the first terminal, a sixth terminal from K seventh terminals included in the terminal set associated with the fifth terminal according to the second selection notification includes:

the first terminal acquires the transmission speed of a seventh link of K seventh terminals in a terminal set associated with the first terminal and the fifth terminal, and the transmission speed of the first link;

the first terminal determines a seventh terminal corresponding to L seventh links as the sixth terminal, wherein the transmission speed of the L seventh links is greater than that of the first link, K is greater than or equal to L and greater than or equal to 1, and L is a positive integer;

the eighth link between the first terminal and any seventh terminal is a communication link based on a first preset communication protocol, the seventh link between any seventh terminal and the fifth terminal is a communication link based on a second preset communication protocol, and a difference between a maximum transmission speed indicated by the second preset communication protocol and a maximum transmission speed indicated by the first preset communication protocol is greater than a first speed threshold.

The first terminal may select L seventh terminals from the more than one seventh terminals as the sixth terminals in order from high to low average transmission speeds of the seventh link and the eighth link.

Optionally, before the first terminal determines, according to the second selection notification, a sixth terminal from among K seventh terminals included in the terminal set associated with the fifth terminal, the method further includes:

and the first terminal receives the terminal information of the K seventh terminals sent by the fifth terminal.

In a second aspect, an embodiment of the present application provides a data transmission method, where the method further includes:

the first terminal receives a second selection notification of the fifth terminal;

the first terminal determines a sixth terminal from K seventh terminals included in a terminal set associated with the fifth terminal according to the second selection notification, wherein K is a positive integer greater than or equal to 1;

the first terminal sends terminal information of the sixth terminal to the fifth terminal, wherein the terminal information of the sixth terminal is used for the fifth terminal to send at least part of second data to the first terminal through a sixth link and a fifth link;

the first terminal determines a seventh terminal corresponding to L seventh links as the sixth terminal, where transmission speeds of the L seventh links are greater than that of the first link, and L is a positive integer less than or equal to M and greater than or equal to 1;

In a third aspect, an embodiment of the present application provides a data transmission apparatus, where the data transmission apparatus may be configured in a terminal device, and the data transmission apparatus may be configured to implement the method of any one of the first aspect or any one of the second aspect.

In a fourth aspect, an embodiment of the present application provides a terminal device, including: a memory for storing a computer program and a processor; the processor is configured to perform the method of any of the first or second aspects described above when the computer program is invoked.

In a fifth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor, the processor is coupled with a memory, and the processor executes a computer program stored in the memory to implement the method of any one of the first aspect or the second aspect.

The chip system can be a single chip or a chip module consisting of a plurality of chips.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method of any one of the first aspect or the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer program product, which, when run on a terminal device, causes the terminal device to perform the method of any one of the first aspect or the second aspect.

It is to be understood that, the beneficial effects of the second to seventh aspects may be referred to the relevant description of the first aspect, and are not repeated herein.

Drawings

Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a transmission system according to an embodiment of the present application;

fig. 3 is a flowchart of a method for associating terminal devices according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of another transmission system provided in an embodiment of the present application;

fig. 5 is a schematic diagram of an association prompt interface provided in the embodiment of the present application;

FIG. 6 is a schematic diagram of another association prompt interface provided in the embodiments of the present application;

fig. 7 is a flowchart of a data transmission method according to an embodiment of the present application;

fig. 8 is a schematic diagram of a data transmission interface according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another transmission system provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of another transmission system provided in an embodiment of the present application;

fig. 11 is a schematic diagram of a display interface for transmitting prompt information according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of another transmission system provided in an embodiment of the present application;

fig. 13 is a schematic structural diagram of another terminal device provided in the embodiment of the present application.

Detailed Description

The data transmission method provided by the embodiment of the application can be applied to mobile phones, tablet computers, wearable devices, vehicle-mounted devices, augmented Reality (AR)/Virtual Reality (VR) devices, notebook computers, ultra-mobile personal computers (UMPCs), netbooks, personal Digital Assistants (PDAs) and other terminal devices, and the embodiment of the application does not limit the specific types of the terminal devices at all.

Fig. 1 is a schematic structural diagram of a terminal device 100 provided in the present application. The terminal 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, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identity Module (SIM) card interface 195, and the like. Wherein the sensor module 180 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.

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

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processor (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), among others. Wherein, the different processing units may be independent devices or may be integrated in one or more processors.

The controller may be a neural center and a command center of the terminal device 100, among others. The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. The repeated accesses are reduced, reducing the latency of the processor 110, and thus increasing the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus comprising a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, the charger, the flash, the camera 193, etc. through different I2C bus interfaces, respectively. For example: the processor 110 may be coupled to 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 a touch function of the terminal device 100.

The I2S interface may be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 through an I2S bus, enabling communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit the audio signal to the wireless communication module 160 through the I2S interface, so as to implement a function of receiving a call through a bluetooth headset.

The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled by a PCM bus interface. In some embodiments, the audio module 170 may also transmit the audio signal to the wireless communication module 160 through the PCM interface, so as to implement the function of answering a call through the bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

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

MIPI interfaces may be used to connect processor 110 with peripheral devices such as display screen 194, camera 193, and the like. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. In some embodiments, processor 110 and camera 193 communicate through a CSI interface to implement the capture function of terminal device 100. The processor 110 and the display screen 194 communicate through the DSI interface to implement the display function of the terminal device 100.

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

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the terminal device 100, and may also be used to transmit data between the terminal device 100 and a peripheral device. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other terminal devices, such as AR devices and the like.

It should be understood that the interface connection relationship between the modules illustrated in the embodiment of the present application is only an exemplary illustration, and does not constitute a limitation on the structure of the terminal device 100. In other embodiments of the present application, the terminal device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive a charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the terminal device 100. The charging management module 140 may also supply power to the terminal device through the power management module 141 while charging the battery 142.

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 provides power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In other embodiments, the power management module 141 may be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

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

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in terminal device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied on the terminal device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred 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 a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication applied to the terminal device 100, including Wireless Local Area Networks (WLANs) (e.g., wi-Fi networks), bluetooth (BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared (IR), and the like. 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, performs frequency modulation and filtering on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, the antenna 1 of the terminal device 100 is coupled to the mobile communication module 150 and the antenna 2 is coupled to the wireless communication module 160 so that the terminal 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 (code division multiple access, CDMA), wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The terminal device 100 implements a display function by the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, connected to the display screen 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 that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the terminal device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The terminal device 100 may implement a shooting function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, the application processor, and the like.

The ISP is used to process the data fed back by the camera 193. For example, when a user takes a picture, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, an optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and converting into an image visible to the naked eye. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, the terminal device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform fourier transform or the like on the frequency point energy.

Video codecs are used to compress or decompress digital video. The terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record video in a plurality of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. The NPU can implement applications such as intelligent recognition of the terminal device 100, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the terminal device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in the external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The processor 110 executes various functional applications of the terminal device 100 and data processing by executing instructions stored in the internal memory 121. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (such as audio data, a phonebook, etc.) created during use of the terminal device 100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like.

The terminal device 100 may implement an audio function through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into analog audio signals for output, and also used to convert analog audio inputs into digital audio signals. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or some functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The terminal device 100 can listen to music through the speaker 170A, or listen to a handsfree call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into a sound signal. When the terminal device 100 answers a call or voice information, it is possible to answer a voice by bringing the receiver 170B close to the human ear.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking near the microphone 170C through the mouth. The terminal device 100 may be provided with at least one microphone 170C. In other embodiments, the terminal device 100 may be provided with two microphones 170C, which may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the terminal device 100 may further include three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and implement directional recording functions.

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

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The terminal device 100 may receive a key input, and generate a key signal input related to user setting and function control of the terminal device 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration cues, as well as for touch vibration feedback. For example, touch operations applied to different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also respond to different vibration feedback effects for touch operations applied to different areas of the display screen 194. Different application scenes (such as time reminding, receiving information, alarm clock, game and the like) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the terminal device 100 by being inserted into the SIM card interface 195 or being pulled out of the SIM card interface 195. The terminal device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. The same SIM card interface 195 can be inserted with multiple cards at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The terminal device 100 interacts with the network through the SIM card to implement functions such as communication and data communication. In some embodiments, the terminal device 100 employs esims, namely: an embedded SIM card. The eSIM card may be embedded in the terminal device 100 and cannot be separated from the terminal device 100.

The software system of the terminal device 100 may adopt a hierarchical architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture.

In order to facilitate understanding of the technical solutions in the embodiments of the present application, an application scenario of the embodiments of the present application is first described below.

With the development of terminal technology, the variety and number of terminal devices are increasing. The terminal devices can independently operate to realize certain functions, and can also communicate with other terminal devices to realize data intercommunication and interchange. For example, in some scenarios, the terminal device includes a mobile phone and a smart watch, the mobile phone may send a song to the smart watch, and the smart watch receives and plays the song; or, the mobile phone can send an image to the smart watch, and the smart watch can receive and set the image as a dial background; or the smart watch can acquire health data of the user, such as walking steps, pulse or blood pressure and the like, and send the health data to the mobile phone, and the mobile phone can display the health data, can further analyze and process the health data, and display a processing result to the user. It can be seen that data transmission between terminal devices is an important step.

Referring to fig. 2, a data transmission system according to an embodiment of the present application is provided. The system may include a first terminal 210, a second terminal 220, and at least one third terminal 230 (3 shown in fig. 2). The first terminal 210 and the third terminal 230 may be mobile phones, and the second terminal 220 may be a smart watch. The first terminal 210, the second terminal 220, and the third terminal 230 may include more or fewer modules than the terminal device 100 shown in fig. 1. In some embodiments, the first and

third terminals

210 and 230 may include the wireless communication module 160 and the mobile communication module 150, and the second terminal 220 may not include the mobile communication module 150.

In some embodiments, when the first terminal 210 needs to transmit data to the second terminal 220, the first terminal 210 may establish a communication link with the second terminal 220 and then transmit the data to the second terminal 220 through the communication link. It can be understood that, since the communication link is strictly limited by the hardware condition and the software condition of the first terminal 210 and the second terminal 220, the transmission speed of the communication link may also have a bottleneck, for example, the second terminal 220 can only establish the bluetooth communication link, and the first terminal 210 and the second terminal 220 can only transmit data through the bluetooth communication link regardless of whether the first terminal 210 can also establish other types of communication links besides the bluetooth communication link, thereby resulting in inefficient data transmission. In addition, the transmission speed of the communication link between the first terminal 210 and the second terminal 220 may also be affected by the distance between the first terminal 210 and the second terminal 220, the greater the distance, the lower the transmission speed of the communication link.

For example, bluetooth modules are provided in the first terminal 210 and the second terminal 220. The user takes a photo through the first terminal 210 and triggers the first terminal 210 to send the photo to the second terminal 220 through the bluetooth module. The first terminal 210 establishes a communication link (i.e., a bluetooth communication link) based on a bluetooth protocol with the second terminal 220 through the bluetooth module, and transmits the photo to the second terminal 220 through the communication link. But the transmission speed of the communication link is low due to the hardware condition and the software condition of the bluetooth module in the first terminal 210 and the second terminal 220. The transmission speed is further reduced as the distance between the first terminal 210 and the second terminal 220 increases. In this case, it is clear that there is no good remedy either for the user or for the first terminal 210 or the second terminal 220. If the hardware condition or the software condition is improved to improve the transmission speed, a corresponding time is required, the current data transmission requirement of the first terminal 210 cannot be met, and even if the hardware condition or the software condition of the first terminal 210 or the second terminal 220 is improved or the user is reminded to approach the distance between the first terminal 210 and the second terminal 220, the data transmission between the first terminal 210 and the second terminal 220 is still strictly limited by the first terminal 210 and the second terminal 220, which makes it difficult to effectively improve the efficiency of the first terminal 210 sending data to the second terminal 220.

In order to solve the technical problem, an embodiment of the present application provides a data transmission method. When the first terminal 210 determines to transmit the first data through the first link with the second terminal 220, if the transmission speed of the first link is less than the average transmission speed of the second link between the second terminal 220 and the third terminal 230 and the third link between the first terminal 210 and the third terminal 230, at least a portion of the first data may be transmitted to the second terminal 220 through the second link and the third link between the first terminal 210 and the third terminal 230. The second terminal 220 may receive at least part of the first data.

Assume that the size of a certain data is 1, the transmission speed of the first link is x, the transmission speed of the second link is y, and the transmission speed of the third link is z. Since in practical applications, when the first terminal 210 transmits data to the third terminal 230 through the third link, the third terminal 230 may also transmit data to the second terminal 220 through the second link, that is, the actual data transmission process may not be serial, the transmission speed h of the first terminal 210 transmitting the data to the second terminal 220 through the third link and the second link is greater than or equal to the average transmission speed yz/(y + z) of the second link and the third link, and h is less than y or z. When the first terminal 210 transmits the data to the second terminal 220 through the second link and the third link, the transmission time period is less than or equal to (y + z)/yz, greater than 1/y, or 1/z, and the transmission time period infinitely approaches the larger value of 1/y and 1/z. It can be seen that as long as the average transmission speed (y + z)/yz of the third link and the second link is greater than the transmission speed x of the first link, the time period for the first terminal 210 to transmit the data to the second terminal 220 through the third link and the second link is less than the time period for the first terminal 210 to transmit the data to the second terminal 220 through the first link. That is, data transmission between the first terminal 210 and the second terminal 220 is no longer completely limited to the hardware condition or the software condition of the first terminal 210 and the second terminal 220, and the first terminal 210 may select a communication link with a faster transmission speed to transmit at least a portion of the first data to the second terminal 220 through the other third terminals 230, so as to reduce the duration of transmitting the first data to the second terminal 220 to a certain extent or to the greatest extent, and improve the transmission efficiency.

In the above description, the first terminal 210 is used as a data sender, but it is understood that in practical applications, the first terminal 220 may also be used as a data receiver. With continued reference to fig. 2, in some embodiments, the data transmission system further includes a fifth terminal 240 and at least one sixth terminal 250 (only 1 shown in fig. 2). Similarly, the fifth terminal 240 may also transmit at least part of the second data to the first terminal 210 through the sixth link and the fifth link when it is determined that the second data needs to be transmitted through the fourth link with the first terminal 210 and the transmission speed of the fourth link is determined to be less than the average transmission speed of the fifth link and the sixth link, where the fifth link is a communication link between the first terminal 210 and the sixth terminal 250, and the sixth link is a communication link between the fifth terminal 240 and the sixth terminal 250.

With continued reference to fig. 2, in some embodiments, the data transmission system may further include an eighth terminal 260, the communication link between the eighth terminal 260 and the second terminal 220 is a ninth link, and the communication link between the eighth terminal 260 and the first terminal 210 is a tenth communication link. The eighth terminal 260 serves as a data sender, the second terminal 220 serves as a data receiver, and the first terminal 210 serves as a data sender. When the eighth terminal 260 determines to transmit the third data to the second terminal 220, at least part of the third data may be transmitted to the second terminal 220 through the ninth link and the first link in a manner similar to the manner in which the first terminal 210 is used as a data transmitting side in the foregoing, and then the first data in the foregoing may be at least part of the third data received by the first terminal 210 from the eighth terminal 260.

It should be noted that the functions of the first terminal 210, the second terminal 220, the third terminal 230, the fifth terminal 240, the sixth terminal 250, and the eighth terminal 260 may be implemented by a processor of the terminal running an Application (APP) installed in each terminal.

It should be further noted that, the data transmission system provided in the present application is described by taking the above-mentioned fig. 2 as an example, but the types of the first terminal 210, the second terminal 220, the third terminal 230, the fifth terminal 240, the sixth terminal 250, and the eighth terminal 260 are not limited in any way. It is understood that the first terminal 210, the second terminal 220, the third terminal 230, the fifth terminal 240, the sixth terminal 250, and the eighth terminal 260 are not limited to a mobile phone or a smart watch in practical applications.

As can be seen from fig. 2, the first terminal 210 needs to be associated with at least one third terminal 230, and then data can be transmitted to the second terminal 220 through the third terminal 230, so that the following will also describe the technical solution of the present application in detail according to specific embodiments in the sequence of terminal device association and data transmission. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 3 is a flowchart of a method for associating a terminal device according to an embodiment of the present disclosure. It should be noted that the method may be used in any terminal device shown in fig. 1 or fig. 2, and the method is not limited by fig. 3 and the specific sequence described below, and it should be understood that, in other embodiments, the sequence of some steps in the method may be interchanged according to actual needs, or some steps in the method may be omitted or deleted. The method comprises the following steps:

s301, the first terminal sends an association request to the fourth terminal.

The first terminal may acquire the terminal information of the fourth terminal through searching or other manners, so as to establish a communication link with the fourth terminal based on the terminal information, and send a correlation request to the fourth terminal through the communication link. The association request may request that the fourth terminal is associated with the first terminal, so that the fourth terminal is set as a resource pool of the first terminal, and the association request may carry terminal information of the first terminal.

It should be noted that the terminal information may be used to describe the identity of the terminal device, so that other terminal devices establish a communication link with the terminal device corresponding to the terminal information based on the terminal information. For example, the terminal information may include a device identifier and may also include a password of the terminal device. Alternatively, the terminal information may include at least one of a bluetooth name and an SSID.

It should also be noted that the resource pool may be used to provide the terminal device with data of another terminal device with which the resource pool is associated. For example, the fourth terminal may be adapted to provide data from the first terminal to the second terminal when the fourth terminal is a resource pool of the first terminal.

And S302, the fourth terminal sends an association response to the first terminal based on the association request.

The fourth terminal may send an association response to the fourth terminal party when receiving the association request, where the association response may carry terminal information of the fourth terminal.

In some embodiments, the fourth terminal may send first association prompt information to the user when receiving the association request, so as to prompt the user to be a resource pool of the first terminal, and send an association response to the first terminal when receiving a confirmation operation of the user. That is, before the fourth terminal is used as the resource pool of the first terminal, the authorization of the user of the fourth terminal may be obtained to ensure the security of the fourth terminal and the subsequent data transmission.

S303, the first terminal sends the terminal information of the second terminal to the fourth terminal, and sends the terminal information of the fourth terminal to the second terminal.

The first terminal can send the terminal information of the second terminal to the fourth terminal through a communication link with the fourth terminal. The first terminal may also establish a communication link with the second terminal in a similar manner to the establishment of the communication link with the fourth terminal, and transmit the terminal information of the fourth terminal to the second terminal through the communication link with the second terminal.

Before storing the terminal information of the fourth terminal, the first terminal and the second terminal may also send second association prompt information to the user to prompt the user that the fourth terminal is to be used as the resource pool of the first terminal, and store the terminal information of the fourth terminal when receiving the confirmation operation of the user. That is, the first terminal and the second terminal may also obtain the user authorization before determining that the fourth terminal is used as the resource pool of the first terminal, so as to ensure the security of subsequent data transmission.

The second terminal may store the terminal information of the fourth terminal in association with the terminal information of the first terminal when receiving the terminal information of the fourth terminal transmitted by the first terminal. Similarly, the first terminal may store the terminal information of the fourth terminal when acquiring the terminal information of the fourth terminal, and the fourth terminal may store the terminal information of the second terminal when acquiring the terminal information of the second terminal. In some embodiments, the first terminal or the second terminal may not store the terminal information of the fourth terminal. In other embodiments, the first terminal or the second terminal may store the terminal information of the fourth terminal and the terminal information of the first terminal in a resource pool association relationship, where the resource pool association relationship may be used to indicate a terminal set associated with any terminal.

It should be noted that, when the fourth terminal and the second terminal both store the terminal information of the opposite terminal, the subsequent fourth terminal and the second terminal may automatically establish a communication link without other operations such as authentication, which not only has higher efficiency, but also reduces user perception and improves user experience.

In some embodiments, since the fourth terminal or the second terminal may establish the communication connection between the fourth terminal and the second terminal as long as one terminal device has the terminal information of the other terminal device, the first terminal may not send the terminal information of the second terminal to the fourth terminal, or the first terminal may not send the terminal information of the fourth terminal to the second terminal.

For example, referring to fig. 4, cell a (210 in fig. 4) searches for the bluetooth name of the smart watch (220 in fig. 4) and establishes a bluetooth communication link with the smart watch based on the bluetooth name of the smart watch, and cell a may also search for the SSID of cell B and establish a Wi-Fi communication link with cell B via the SSID of cell B (230 in fig. 4). Handset a may display an association prompt interface as shown in fig. 5, which includes a list of searched devices, including handset B and a drop-down menu that can be used to display more devices, and help buttons such as a determine button, a cancel button, and "what is a resource pool". When the mobile phone A receives the selection operation of the user based on the check box on the left side of the mobile phone B and receives the click operation of the user based on the determination button, the association request can be sent to the mobile phone B through the Wi-Fi communication link between the mobile phone A and the mobile phone B so as to request the mobile phone B to be used as the resource pool of the mobile phone A. In addition, when the mobile phone a receives the click operation of the user based on the help button, more explanation information about the resource pool can be displayed to the user. The mobile phone B receives the association request sent by the mobile phone a and displays an association prompt interface as shown in fig. 6. In fig. 6, the mobile phone B prompts the user to establish an association with the mobile phone a through a pop-up window to determine whether to determine the resource pool as the mobile phone a, and an approval button and a rejection button are provided, and help buttons such as what is the resource pool are displayed at the bottom of the pop-up window. When the mobile phone B receives the clicking operation of the user based on the consent button, the association response is sent to the mobile phone A through the Wi-Fi communication link between the mobile phone B and the mobile phone A; when the mobile phone B receives the clicking operation of the user based on the rejection button, the association request of the mobile phone A is not responded; when the mobile phone B receives the clicking operation of the user based on the help button, more explanation information about the resource pool can be displayed to the user. When receiving the association response of the mobile phone B, the mobile phone A can send the Bluetooth name and the password of the mobile phone B to the smart watch through a Bluetooth communication link between the mobile phone A and the smart watch, and send the Bluetooth name and the password of the smart watch to the mobile phone B through a Wi-Fi communication link between the mobile phone A and the smart watch, so that the mobile phone B and the smart watch can respectively obtain terminal information of an opposite terminal.

The first terminal can be associated with M fourth terminals by executing the above S301 to S303, where M is greater than or equal to 1 and is a positive integer, so as to obtain a terminal set associated with the first terminal, where the terminal set includes M fourth terminals. The fourth terminal may serve as the resource pool of the first terminal, and then the subsequent first terminal may send data to the second terminal through the fourth terminal. Of course, in some embodiments, the first terminal and the second terminal may delete the terminal information of the fourth terminal, so that the fourth terminal is no longer used as the resource pool of the first terminal. Correspondingly, the fourth terminal may also delete the terminal information of the second terminal, so as to no longer serve as the resource pool of the first terminal.

For example, the smart watch respectively obtains the bluetooth names of the mobile phone B, the mobile phone C, the mobile phone D, and the mobile phone E sent by the mobile phone a, and stores the bluetooth names of the mobile phone B, the mobile phone C, the mobile phone D, and the mobile phone E in the resource pool association relationship shown in table 1 below.

TABLE 1

Source terminal	Resource pool terminal
		Mobile phone A	Mobile phone B, mobile phone C, mobile phone D and mobile phone E
Mobile phone B	Mobile phone C and mobile phone D
		Mobile phone E	Mobile phone F and mobile phone G
…	……

As shown in table 1 above, the resource pool association relationship includes a source end and a resource pool end, where the source end may be a terminal device of a data source, and the resource pool end is another terminal device associated with the source end. For example, the second row in table 1 can indicate that the mobile phone B, the mobile phone C, the mobile phone D, and the mobile phone E are resource pools of the mobile phone a.

In the embodiment of the present application, the resource pool association relationship is described only in table 1, and table 1 does not limit the resource pool association relationship at all.

Fig. 7 is a flowchart of a data transmission method according to an embodiment of the present application. It should be noted that the method may be used in any terminal device shown in fig. 1 or fig. 2, and the method is not limited by fig. 3 and the specific sequence described below, and it should be understood that, in other embodiments, the sequence of some steps in the method may be interchanged according to actual needs, or some steps in the method may be omitted or deleted. The method comprises the following steps:

s701, a first terminal determines to transmit first data through a first link with a second terminal.

The first data may be any data currently stored by the second terminal.

In some embodiments, the first terminal may determine to transmit the first data through the first link between the first terminal and the second terminal when receiving a transmission instruction to the second terminal based on the first data, where the transmission instruction may be used to indicate attribute information of the first link, where the attribute information of the first link may include at least one of a communication protocol and an encryption manner on which the first link is based, and of course, in an actual application, the attribute information of the first link may also include more information related to the first link, and a content included in the attribute information of the first link is not specifically limited in this embodiment of the present application.

For example, referring to fig. 8, a user browses an album through a mobile phone a, selects an image, pops up a display window when the mobile phone a detects a selection operation for the image, displays "my watch", "mobile phone B", and "mobile phone C" searched through bluetooth at the top of the display window, and displays other selectable sharing modes at the bottom. When the cell phone a receives a selection operation of the user based on "my watch", it may be determined that the image is transmitted through the communication link between the cell phone a and my watch.

In other embodiments, the first terminal may determine to transmit the first data through the first link with the second terminal when receiving the terminal information of the second terminal and the first data transmitted by the other terminal device (e.g., the eighth terminal).

Of course, in practical applications, the first terminal may also determine that the first data is transmitted through the first link with the second terminal in other manners, and the embodiment of the present application is not particularly limited to the manner in which the first terminal determines that the first data is transmitted through the first link with the second terminal.

S702, the first terminal sends a first selection notice to the second terminal.

Wherein the first selection notification is used to notify the second terminal to determine the third terminal among M fourth terminals included in the terminal set associated with the first terminal.

In order to avoid the problem that the efficiency of transmitting the first data from the first terminal to the second terminal is completely limited by the hardware conditions and the software conditions of the first terminal and the second terminal, the first terminal may send a first selection notification to the second terminal to acquire another third terminal that may be used for transmitting the first data.

The first terminal may establish a first link with the second terminal based on the terminal information of the second terminal, and send a first selection notification to the second terminal through the first link, where the first selection notification may carry the terminal information of the first terminal.

In some embodiments, the set of terminals associated with the first terminal is stored at the first terminal, and thus, the first terminal may transmit the set of terminals associated with the first terminal to the second terminal.

In some embodiments, the first terminal may send the first screening information to the second terminal, where the first screening information may indicate a manner in which the second terminal acquires the third terminal or indicate a limitation on the third terminal, for example, the first screening information may include a first number threshold, where the first number threshold is used to indicate the second terminal to determine N third terminals in a terminal set associated with the first terminal, where M ≧ N ≧ 1 and N are positive integers. Certainly, in practical applications, the first screening information may also include more or less information, so as to instruct the second terminal to more accurately acquire the third terminal, thereby improving the transmission effect of the subsequent first data, including better transmission speed, transmission quality or security.

It should be noted that the first terminal or the second terminal may be a terminal set associated with the first terminal obtained by the terminal association method shown in fig. 3, or may be obtained by other methods, and the method for obtaining the terminal set associated with the first terminal is not specifically limited in the embodiment of the present application.

In some embodiments, the first terminal may send a first selection notification to the second terminal upon determining that the first terminal, the second terminal, the first link, or the first data satisfies a preset transmission condition. The preset transmission condition is used for triggering the first terminal to send at least part of first data to the second terminal through the resource pool of the first terminal.

It should be noted that the preset transmission condition may be obtained by setting in advance. In some embodiments, since in near field communication, the transmission speed is easily affected by the distance between the terminal devices, the stability is poor, and the maximum transmission speed supported by some near field transmission protocols is low, the first terminal may send the first data selection notification to the second terminal when it is determined that the first link is a communication link based on a preset near field communication protocol (such as a bluetooth protocol or a zigbee protocol). In some embodiments, the first terminal may transmit the first data to the second terminal when it is determined that the size of the first data is greater than a preset data amount size. In some embodiments, the first terminal may send the first selection notification to the second terminal upon determining that the terminal identity of the first terminal or the second terminal is the first preset terminal identity. Of course, in practical applications, the preset transmission condition may include more or less information, and the embodiment of the present application does not limit the specific content of the preset transmission condition.

And S703, the second terminal acquires the terminal information of the third terminal from the terminal set associated with the first terminal.

The second terminal may determine, when receiving the first selection notification sent by the first terminal, a third terminal from M fourth terminals included in the terminal set associated with the first terminal, and further acquire terminal information of the third terminal. In some embodiments, the second terminal may receive a set of terminals associated with the first terminal sent by the first terminal; in other embodiments, the second terminal may obtain the terminal set associated with the first terminal from the local terminal, where the terminal set associated with the first terminal stored by the second terminal may be obtained by the second terminal in advance (for example, from the first terminal).

The second terminal may obtain a transmission speed of the first link, a transmission speed between an eleventh link between the second terminal and the fourth terminal, and a transmission speed of a twelfth link between the first terminal and the fourth terminal, and if an average transmission speed of the eleventh link and the twelfth link is greater than the transmission speed of the first link, the second terminal may determine the fourth terminal as the third terminal, and accordingly, the second terminal may determine the eleventh link with the fourth terminal as the second link and the twelfth link between the first terminal and the fourth terminal as the third link. In some embodiments, if there is more than one fourth terminal, and the average transmission speed of the eleventh link and the twelfth link corresponding to the fourth terminal is greater than the transmission speed of the first link, the second terminal may select N fourth terminals from the more than one fourth terminals as the third terminals in order from high to low of the average transmission speed of the eleventh link and the twelfth link, where N ≧ 1.

In some embodiments, the twelfth link between the first terminal and any fourth terminal may be a communication link based on the second preset communication protocol, the eleventh link between any fourth terminal and the second terminal may be a communication link based on the first preset communication protocol, and a difference between the maximum transmission speed indicated by the second preset communication protocol and the maximum transmission speed indicated by the first preset communication protocol may be greater than the first speed threshold. The first speed threshold value may be set in advance, and when a difference between the maximum transmission speed indicated by the second preset communication protocol and the maximum transmission speed indicated by the first preset communication protocol is greater than the first speed threshold value, a time period for transmitting data through the twelfth link may be ignored with respect to a time period for transmitting the data through the eleventh link. Then, as long as the transmission speed of the eleventh link is greater than that of the first link, it can be ensured that the time period for the first terminal to transmit the data to the second terminal through the twelfth link and the eleventh link is less than the time period for the first terminal to transmit the data to the second terminal through the first link. Therefore, the second terminal may acquire only the transmission speed of the first link and the transmission speed of the eleventh link, and determine a fourth terminal corresponding to N eleventh links as the third terminal, where the transmission speeds of the N eleventh links are greater than the transmission speed of the first link. In some embodiments, on the basis of the above, the second intermediate terminal may determine N eleventh links in order of transmission speed from high to low, and determine a fourth terminal corresponding to the N eleventh links as the third terminal, where the transmission speed of the N eleventh links may be greater than the transmission speed of the remaining eleventh links. In addition, when the second terminal determines a fourth terminal as the third terminal, an eleventh link between the second terminal and the fourth terminal may be the second link, and a twelfth link between the fourth terminal and the first terminal may be the third link.

For example, the first preset communication protocol may include a preset near field communication protocol of the aforementioned, such as bluetooth protocol or zigbee protocol, and the second preset communication protocol may include a mobile-based communication protocol (such as 4G or 5G) or Wi-Fi protocol.

Similarly, if the eleventh link between the second terminal and any one of the fourth terminals is a communication link based on the second preset communication protocol, and the twelfth link between the first terminal and the any one of the fourth terminals is a communication link based on the first preset communication protocol, the second terminal may also only obtain the transmission speed of the first link and the transmission speed of the twelfth link, so that the fourth terminals corresponding to the N twelfth links are determined as the third terminals, and the transmission speeds of the N second links may be greater than the transmission speed of the first link.

It should be noted that the second terminal may reserve an eleventh link between the second terminal and a fourth terminal other than the third terminal, so as to save time consumed for disconnecting the eleventh link, and further improve efficiency. Of course, the second terminal may also disconnect the eleventh link between the second terminal and a fourth terminal other than the third terminal. Similarly, the first terminal or a fourth terminal except the third terminal may also reserve a twelfth link between the first middle terminal and the fourth terminal except the third terminal, so as to save time consumed for disconnecting the twelfth link. Of course, the twelfth link between the first terminal and the fourth terminal other than the third terminal may also be reserved.

In some embodiments, the second terminal may disconnect an eleventh link with another fourth terminal when determining the third terminal, and the second terminal may further instruct the other fourth terminal or the first terminal to disconnect a twelfth link between the other fourth terminal and the first terminal.

In some embodiments, if the second terminal ignores the transmission speed of the twelfth link between the first terminal and each fourth terminal when determining the third terminal, the second terminal may disconnect the eleventh link with one fourth terminal each time the transmission speed of the eleventh link with the fourth terminal is acquired, and the second terminal may further instruct the fourth terminal or the first terminal to disconnect the twelfth link with the fourth terminal.

For example, referring to fig. 9, upon receiving the first selection notification sent by the cell phone a (210 in fig. 9), the smart watch (220 in fig. 9) determines that the terminal set associated with the cell phone a includes the cell phone B (271 in fig. 9), the cell phone C (272 in fig. 9), and the cell phone D (273 in the figure). The transmission speed of the Bluetooth communication link between the intelligent watch and the mobile phone A is 60k/s (kilobytes per second), the transmission speed of the Bluetooth communication link between the intelligent watch and the mobile phone B is 40k/s, the transmission speed of the Bluetooth communication link between the intelligent watch and the mobile phone C is 120k/s, and the transmission speed of the Bluetooth communication link between the intelligent watch and the mobile phone D is 80k/s. The transmission speed of the Bluetooth communication link between the smart watch and the mobile phone C is the maximum, so that the smart watch determines the mobile phone C as a third terminal, and the Bluetooth communication links between the smart watch and the mobile phones A, B and D are cut off.

In some embodiments, if the second terminal ignores the transmission speed of the twelfth link between the first terminal and each fourth terminal when determining the third terminal, the second terminal may disconnect the eleventh link having the lower transmission speed when acquiring that the transmission speed of the eleventh link between the second terminal and one fourth terminal is greater than the transmission speed of the eleventh link between the second terminal and another fourth terminal, and the second terminal may further instruct the first terminal or the fourth terminal corresponding to the eleventh link having the lower transmission speed to disconnect the eleventh link having the lower transmission speed.

In some embodiments, since the transmission speed is limited by the hardware condition of the terminal device, and the hardware update period of the terminal device is relatively low, even some terminal devices do not update the hardware in the whole life cycle, that is, for different terminal devices, the terminal identifier (such as the terminal name and the terminal model) of the terminal device is related to the transmission speed supported by the terminal device. Therefore, in order to improve the efficiency of determining the third terminal, when the second terminal determines the third terminal from the terminal set associated with the first terminal, the second terminal may obtain terminal information of each fourth terminal included in the terminal set associated with the first terminal, the terminal information including a terminal identifier, and determine the fourth terminal corresponding to the second preset terminal identifier as the third terminal, without obtaining the transmission speed of the eleventh link between the fourth terminal and the second terminal, or obtaining the transmission speed of the twelfth link between the fourth terminal and the first terminal.

For example, the smart watch determines that the terminal set associated with the mobile phone a includes a mobile phone B, a mobile phone C, a mobile phone D, and a mobile phone E, where the model of the mobile phone B is mt30, the model of the mobile phone C is no1, the model of the mobile phone D is mt20, the model of the mobile phone E is ooace, and the smart watch determines that the second preset terminal identifier is mt30, so the smart watch may determine that the mobile phone B is a third terminal. It should be noted that the mt30, no1, mt20, and ooace are only imaginary terminal models for explaining the embodiments of the present application, and the mt30, no1, mt20, and ooace do not limit the terminals in the embodiments of the present application.

In addition, in some embodiments, a similar step to the foregoing S703 may be performed by the first terminal, and the terminal information of the third terminal is acquired from the terminal set associated with the first terminal, and accordingly, the following S704 may be omitted.

S704, the second terminal sends the terminal information of the third terminal to the first terminal.

The second terminal may send the terminal information of the third terminal to the first terminal, so that when the first terminal receives the terminal information of the third terminal, each third terminal that subsequently transmits data to the second terminal may be determined.

In some embodiments, the second terminal may disconnect the first link between the first terminal and the second terminal after transmitting the terminal information of the third terminal to the first terminal or when the first terminal receives the terminal information of the third terminal.

For example, referring to fig. 10, the twelfth communication link between the cell phone a (210 in fig. 10) and the cell phone B (230 in fig. 10) is a 4G/5G/Wi-Fi communication link, the first link between the cell phone a and the smart watch (220 in fig. 10) and the eleventh link between the cell phone B and the smart watch is a bluetooth communication link. Because the bluetooth protocol is a low-power consumption communication protocol, relative to the time consumed by data transmission in the first link or the eleventh link, the time consumed by data transmission in the twelfth link can be ignored, and as long as the transmission speed of the eleventh link is higher than that of the first link, the efficiency of sending data to the smart watch through the twelfth link and the eleventh link by the mobile phone a is higher than the efficiency of sending the data to the smart watch through the first link by the mobile phone a. Therefore, when the transmission speed of the first link is detected to be 30k/s by the smart watch and the transmission speed of the eleventh link is detected to be 80k/s, the 80k/s is greater than 30k/s, so that the smart watch sends the terminal information of the mobile phone B to the mobile phone A, and then the first link between the smart watch and the mobile phone A is cut off, so that the subsequent mobile phone A transmits data to the smart watch through the twelfth link and the eleventh link.

In some embodiments, the second terminal may send the transmission speed of the first link, the transmission speed of the second link, and the transmission speed of the third link to the first terminal, so that the first terminal more accurately controls the transmission process of the first data based on the transmission speed of the first link, the transmission speed of the second link, and the transmission speed of the third link.

S705, the first terminal outputs transmission prompt information.

By transmitting the prompt information, the user is prompted to send at least part of the first data through the resource pool, a specific path of data transmission can be truly shown to the user, so that the security of the data is ensured, and the user can be used for further carrying out management and control or other operations on the data transmission operation to be generated, such as suspending transmission or debugging according to the subsequent transmission process.

Referring to fig. 11, the mobile phone a receives the terminal information of the mobile phone B sent by the smart watch, so that the transmission prompt message can be displayed to the user: "data is to be sent to my watch via handset B". In addition, the mobile phone A can also display three buttons of 'confirm', 'reject' and 'cancel'. If handset a receives a click operation by the user based on the "ok" button, the subsequent steps may be continued. If the mobile phone a receives the click operation of the user based on the "reject" button, the first data may be sent to the second terminal through the first connection, that is, at least part of the first data is no longer sent through the resource pool. If the mobile phone a receives a click operation by the user based on the "cancel" button, the transmission of the first data may be canceled.

In some embodiments, the cell phone a may display a transmission prompting message before S702, in a manner similar or identical to S705, to prompt the user that at least part of the first data is to be transmitted through the resource pool.

In addition, in some embodiments, S705 may also be omitted, so that, on one hand, interaction with the user is reduced, so that the transmission process is simpler and more efficient, and on the other hand, the user may be prevented from sensing a specific transmission path of the first data, and the user experience the same as that of directly sending the first data to the second terminal through the first terminal is provided to the user, that is, the user experience is optimized.

S706, the first terminal transmits at least a part of the first data to the second terminal via the third link and the second link.

As can be seen from the foregoing, the speed at which the first terminal transmits data to the second terminal through the second link and the third link is greater than the speed at which the first terminal transmits data to the second terminal through the first link, so that when the first terminal needs to transmit the first data to the second terminal, at least a part of the first data may be transmitted to the second terminal through the second link and the third link, thereby improving the efficiency of transmitting the first data to the second terminal.

In some embodiments, the first terminal may transmit the first data to the second terminal through the second link and the third link to maximize efficiency of transmitting the first data. In yet other embodiments, the first data includes Q distinct first portions and P second portions, where 1 ≦ Q = N and P is 1 or 0,N is the number of third terminals. The first terminal transmits Q different first parts of the first data to the second terminal through the N second links and the N third links, respectively, and transmits a second part of the first data through the first link, and accordingly, the second terminal may combine the Q different first parts and the P second parts into the first data when receiving the Q different first parts and the P second parts.

If the number N of the third terminals is greater than 1, and the first terminal sends the first data to the first terminal through the third terminals, the first terminal may send the first data to the second terminal through third links with the third terminals and a second link between the third terminal and the second terminal, that is, the first terminal may transmit the first data to the second terminal through the N third terminals, respectively, and the second terminal may stop receiving the first data sent by other third terminals when receiving the first data sent by a certain third terminal first.

If the number N of the third terminals is greater than 1, the first terminal sends Q different first portions of the first data to the first terminal through the third terminals, Q = N, and P =0, the first terminal may send Q different first portions to the second terminal through third links with the third terminals and second links between the third terminals and the second terminal, respectively, and the second terminal receives the Q different first portions from the N terminals and synthesizes the Q different first portions into the first data. Of course, if P =1, the first terminal may also send the second part to the second terminal through the first link, and accordingly, the second terminal may combine Q different first parts and 1 second part into the first data.

It should be noted that in practical applications, N may be greater than Q, in which case, at least two first portions of the first data transmitted by the first terminal to the first terminal through at least two third terminals may be the same, and the second terminal may not receive the same first portion transmitted by other third terminals in the at least two third terminals after receiving the first portion from one of the third terminals first.

It should be further noted that the first part and the second part may carry data synthesis information, where the data synthesis information is used to instruct to synthesize Q different first parts and P second parts into the first data. The data synthesis information may include a data identification of the first data and a location of the first portion or the second portion in the first data.

It should be noted that the first data party may include a plurality of data packets, and correspondingly, the first part or the second part may include at least one data packet.

For example, referring to fig. 12, the mobile phone a (210 in fig. 12) acquires the terminal information of the mobile phone B (231 in fig. 12) and the mobile phone C (232 in fig. 12) from the smart watch (220 in fig. 12), that is, it is determined that the third terminal includes the mobile phone B and the mobile phone C. The first data comprises 10 data packets, 0-9 etc. Therefore, the mobile phone a sends the data packet 2, the data packet 5, the data packet 6 and the data packet 7 of the first data packet to the mobile phone B through the Wi-Fi communication link with the mobile phone B, the mobile phone B sends the data packet 2, the data packet 5, the data packet 6 and the data packet 7 to the smart watch through the bluetooth communication link with the smart watch, similarly, the mobile phone a sends the data packet 0, the data packet 1, the data packet 3, the data packet 4, the data packet 8 and the data packet 9 of the first data packet to the mobile phone C through the Wi-Fi communication link with the mobile phone C, and the mobile phone C sends the data packet 0, the data packet 1, the data packet 3, the data packet 4, the data packet 8 and the data packet 9 to the smart watch through the bluetooth communication link with the smart watch. The smart watch receives the data packet 2, the data packet 5, the data packet 6 and the data packet 7 from the mobile phone B, and the data packet 0, the data packet 1, the data packet 3, the data packet 4, the data packet 8 and the data packet 9 from the mobile phone C, and synthesizes the data packet 2, the data packet 5, the data packet 6, the data packet 7, the data packet 0, the data packet 1, the data packet 3, the data packet 4, the data packet 8 and the data packet 9 into first data. Still alternatively, the first data further includes a data packet 10, a data packet 11, and a data packet 12, and the mobile phone a may send the data packet 10, the data packet 11, and the data packet 12 to the smartwatch through a bluetooth communication link with the smartwatch, so that the smartwatch may receive the data packet 10, the data packet 11, and the data packet 12 from the mobile phone a, and combine the data packet 2, the data packet 5, and the data packet 6, the data packet 7, the data packet 0, the data packet 1, the data packet 3, the data packet 4, the data packet 8, the data packet 9, the data packet 10, the data packet 11, and the data packet 12 into the first data. In some embodiments, the smart watch may receive data of different terminal devices through different bluetooth modules, respectively, to further improve the efficiency of receiving data.

In some embodiments, the first terminal may determine the first portion transmitted via the second link and the third link based on at least one of a transmission speed of the second link and a transmission speed of the third link. If the first terminal determines the first part based on the transmission speed of the second link, the data size of the first part is positively correlated with the transmission speed of the second link; if the first terminal determines the first part based on the transmission speed of the third link, the data size of the first part is positively correlated with the transmission speed of the third link; if the first terminal determines the first portion based on the transmission speed of the second link and the transmission speed of the third link, the data size of the first portion is positively correlated with the transmission speed of the second link and the transmission speed of the third link. That is, the data amount transmitted through each link is reasonably distributed according to the transmission speed of the link, and the transmission efficiency is further improved.

If the time duration consumed for the data to be transmitted on the third link is negligible relative to the time duration consumed for the data to be transmitted on the second links, the first terminal may determine the data size of the first portion transmitted through each of the second links based on the transmission speeds of the M second links, or the first terminal may determine the data size of the first portion and the data size of the second portion transmitted through each of the second links based on the transmission speeds of the M second links and the transmission speed of the first link.

For example, with continued reference to fig. 12, the third link between cell phone a and cell phones B and C is a Wi-Fi communication link, and the second link between cell phones B and C and the smart watch is a bluetooth communication link, so that the time duration consumed for cell phone a to transmit data to cell phones B and C is negligible compared to the time duration consumed for cell phone B or C to transmit data to the smart watch through the bluetooth communication link. Therefore, the mobile phone a can respectively determine the data size of the first part transmitted by the mobile phone B and the mobile phone C based on the bluetooth communication links between the mobile phone B and the mobile phone C and the smart watch. The transmission speed of the Bluetooth communication link between the mobile phone B and the smart watch is determined to be 40k/s by the mobile phone A, and the transmission speed of the Bluetooth communication link between the mobile phone C and the smart watch is 60k/s, so that 10 data packets included in the first data are divided into two first parts, wherein the first part corresponding to the mobile phone B comprises 4 data packets including a data packet 2, a data packet 5, a data packet 6, a data packet 7 and the like, and the first part corresponding to the mobile phone C comprises 10 data packets including a data packet 0, a data packet 1, a data packet 3, a data packet 4, a data packet 8, a data packet 9 and the like.

Similarly, if the time duration consumed for the data to be transmitted on the second link is negligible with respect to the time duration consumed for the data to be transmitted on the third links, the first terminal may determine the data size of the first portion transmitted through each of the third links based on the transmission speeds of the M third links, or the first terminal may determine the data size of the first portion and the data size of the second portion transmitted through each of the third links based on the transmission speeds of the M third links and the transmission speed of the first link.

Of course, regardless of the difference between the duration consumed by the data in the second link and the duration consumed by the data in the third link, the first terminal may obtain the transmission speed of the second link between each third terminal and the second terminal and the transmission speed of the third link between each third terminal and the first terminal, thereby determining the average transmission speed of the second link and the third link corresponding to each third terminal, and further determining the size of the data volume of the first portion transmitted by each third terminal and the size of the data volume of the first data transmitted by each third terminal according to the average transmission speed corresponding to each third terminal.

For example, the data size of the first data is 10MB (megabytes), please refer to fig. 9 again. The transmission speed of the Bluetooth communication link between the mobile phone A and the smart watch is 60k/s, and the transmission speed of the Bluetooth communication link between the mobile phone C and the smart watch is 120k/s. If the mobile phone a directly transmits the first data through the bluetooth communication link between the mobile phone a and the smart watch, it takes 10 × 1024/60=170s. If the mobile phone C directly transmits the first data through the bluetooth communication link between the mobile phone C and the smart watch, it takes 10 × 1024/120=85s. The mobile phone a may send the first data to the mobile phone C through the Wi-Fi communication link, which consumes far less than 85s and is therefore negligible. In addition, the smart watch establishes a bluetooth communication link with the mobile phone a, the mobile phone B, the mobile phone C and the mobile phone D respectively, and the consumed time is 2s × 4=8s; the smart watch detects the transmission speed of the Bluetooth communication connection between the smart watch and the mobile phone A, the mobile phone B, the mobile phone C and the mobile phone D respectively, and the time consumption is 2s x 4=8s; disconnecting the Bluetooth communication links with the mobile phone A, the mobile phone B and the mobile phone D respectively by the smart watch, and consuming 2s x 3=6s; establishing a Wi-Fi communication link between the mobile phone A and the mobile phone C, wherein the time is 2s; the mobile phone a establishes the association relationship with the mobile phone B, the mobile phone C and the mobile phone D in advance, that is, the mobile phone B, the mobile phone C and the mobile phone D take 10 × 3=30s as the resource pool of the mobile phone a. And because the mobile phone a only needs to establish an association relationship with the mobile phone B, the mobile phone C and the mobile phone D once, the mobile phone B, the mobile phone C and the mobile phone D can be permanently used as the resource pool of the mobile phone a, so that the consumed time can be ignored, in the embodiment of the present application, the total consumed time for the mobile phone a to transmit the first data to the smart watch through the mobile phone C can be 85s +8s +6s +2s =109s, and if the smart watch does not disconnect the bluetooth communication links with the mobile phone a, the mobile phone B and the mobile phone D respectively, the total consumed time can be saved by 6s again, that is, the consumed time can be shortened to 103s. It can be seen that the transmission time of the first data is reduced from 170s to 109s or 103s, which significantly improves the transmission efficiency.

In some embodiments, the second link may be severed (or the third terminal may be instructed to sever) when the second terminal receives the first data, instructing the first terminal or the third terminal to sever the third link. And the second terminal may establish the first link again if the current first link has been broken. That is, the second terminal may restore the connection relationship among the first terminal, the second terminal, and the third terminal to the state before the first data is transmitted when the first data is transmitted, which is convenient for the subsequent interactive operation between the first terminal and the second terminal to improve the interactive efficiency, and can further reduce the user perception and improve the user experience.

In some embodiments, if the first terminal does not receive the terminal information of the third terminal sent by the second terminal, it may be that the second terminal does not acquire the third terminal, that is, the transmission speed of the first link is greater than or equal to the average transmission speed of the second link and the third link, and therefore, the first terminal may send the first data to the second terminal based on the first link.

It should be noted that the first terminal, the second terminal, or the third terminal may be interchanged, for example, the first terminal may perform the operation performed by the second terminal to receive data from other terminal devices; the first terminal may perform the operation performed by the third terminal to forward the data to the other terminal device.

In some embodiments, the first terminal may receive a second selection notification of a fifth terminal, and the first terminal determines, according to the second selection notification, a sixth terminal from K seventh terminals included in a terminal set associated with the fifth terminal, where K is greater than or equal to 1 and K is a positive integer, and the first terminal transmits terminal information of the sixth terminal to the fifth terminal, where the terminal information of the sixth terminal is used for the fifth terminal to transmit at least part of the second data to the first terminal via a sixth link and a fifth link, the fifth link is a communication link between the first terminal and the sixth terminal, the sixth link is a communication link between the fifth terminal and the sixth terminal, and a transmission speed of a fourth link between the first terminal and the fifth terminal is less than an average transmission speed of the fifth link and the sixth link.

The first terminal may receive the terminal information of the K seventh terminals sent by the fifth terminal in advance.

In some embodiments, the first terminal may obtain a transmission speed of a seventh link of K seventh terminals in a terminal set associated with the first terminal and the fifth terminal, and the transmission speed of the first link, where the first terminal determines a seventh terminal corresponding to L seventh links as a sixth terminal, where the transmission speed of the L seventh terminals is greater than the transmission speed of the first link, K ≧ L ≧ 1, and L is a positive integer, an eighth link between the first terminal and any seventh terminal is a communication link based on a first preset communication protocol, a seventh link between any seventh terminal and the fifth terminal is a communication link based on a second preset communication protocol, and a difference between a maximum transmission speed indicated by the second preset communication protocol and a maximum transmission speed indicated by the first preset communication protocol is greater than a first speed threshold. Of course, if the eighth link between the first terminal and any of the seventh terminals is a communication link based on the second preset communication protocol, and the seventh link between any of the seventh terminals and the fifth terminal is a communication link based on the first preset communication protocol, the first terminal may also determine the seventh terminals corresponding to the L eighth links as the sixth terminal, where the transmission speed of the L eighth links is greater than the transmission speed of the first link.

In some embodiments, the first terminal may determine, according to the sequence from high transmission speed to low transmission speed, L seventh terminals corresponding to seventh links whose transmission speeds are greater than that of the first link, and determine the L acquired seventh terminals as sixth terminals.

In this embodiment, when the first terminal determines that the first data is transmitted through the first link with the second terminal, if the transmission speed of the first link is less than the average transmission speed of the second link between the second terminal and the third link between the first terminal and the third terminal, the first terminal may transmit at least a part of the first data to the second terminal via the third link and the second link. Because the transmission speed of the first link is less than the average transmission speed of the second link and the third link, the time length that the first terminal transmits the data to the second terminal through the second link and the third link is less than the time length that the first terminal transmits the data to the second terminal through the first link. That is, data transmission between the first terminal and the second terminal is not limited to the hardware condition or the software condition of the first terminal and the second terminal, and the first terminal may select a communication link with a faster transmission speed to transmit at least part of the first data to the second terminal through another third terminal, so as to reduce the duration of transmitting the first data to the second terminal to a certain extent or to the greatest extent, and improve the transmission efficiency.

Based on the same inventive concept, as an implementation of the foregoing method, an embodiment of the present application provides a data transmission apparatus, which may be disposed in a terminal device, where the apparatus embodiment corresponds to the foregoing method embodiment, and for convenience of reading, details in the foregoing method embodiment are not repeated one by one in the apparatus embodiment, but it should be clear that the apparatus in this embodiment can correspondingly implement all the contents in the foregoing method embodiment.

Based on the same inventive concept, the embodiment of the application also provides the terminal equipment. Fig. 13 is a schematic structural diagram of a terminal device 1300 according to an embodiment of the present application, and as shown in fig. 13, the terminal device 1300 according to the embodiment includes: a memory 1310 and a processor 1320, the memory 1310 for storing computer programs; the processor 1320 is configured to execute the method according to the above-described method embodiment when the computer program is called.

The terminal device provided in this embodiment may execute the method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Based on the same inventive concept, the embodiment of the application also provides a chip system. The chip system comprises a processor coupled to a memory, the processor executing a computer program stored in the memory to implement the method of the above-described method embodiments.

Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the method described in the above method embodiments.

The embodiment of the present application further provides a computer program product, which when running on a terminal device, enables the terminal device to implement the method described in the above method embodiment when executed.

The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include at least: any entity or device capable of carrying computer program code to a photographing apparatus/terminal apparatus, a recording medium, computer memory, read-only memory (ROM), random Access Memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc. In certain jurisdictions, computer-readable media may not be an electrical carrier signal or a telecommunications signal in accordance with legislative and patent practice.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/device and method may be implemented in other ways. For example, the above-described apparatus/device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically stated.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of data transmission, comprising:

the second link is a communication link between a third terminal and the second terminal, and the third link is a communication link between the first terminal and the third terminal;

the method further comprises the following steps:

a fifth link is a communication link between the first terminal and the sixth terminal, a sixth link is a communication link between the fifth terminal and the sixth terminal, and a transmission speed of a fourth link between the first terminal and the fifth terminal is smaller than an average transmission speed of the fifth link and the sixth link;

wherein the determining, by the first terminal, a sixth terminal from among K seventh terminals included in the terminal set associated with the fifth terminal according to the second selection notification includes:

the first terminal determines a seventh terminal corresponding to L seventh links as the sixth terminal, where the transmission speed of the L seventh links is greater than that of the first link, and L is a positive integer less than or equal to K and greater than or equal to 1;

2. The method of claim 1, wherein before the first terminal sends at least part of the first data to the second terminal via the third link and the second link if the first terminal determines that the transmission speed of the first link is less than the average transmission speed of the second link and the third link, the method further comprises:

the first terminal sends a first selection notification to the second terminal, wherein the first selection notification is used for notifying the second terminal to determine the third terminal in M fourth terminals included in a terminal set associated with the first terminal, and M is a positive integer greater than or equal to 1;

3. The method of claim 2, wherein before the first terminal sends the first selection notification to the second terminal, the method further comprises:

the first terminal sends association requests to all fourth terminals;

4. The method of claim 3, further comprising:

5. The method of claim 1 or 2, wherein the first data comprises a first portion and a second portion, and wherein the at least partial data is the first portion, the method further comprising:

the first terminal transmits the second portion over the first link.

6. The method of claim 5, wherein before the first terminal sends at least part of the first data to the second terminal via the third link and the second link, the method further comprises;

7. The method according to any of claims 1-4 and 6, wherein before said if said first terminal determines that the transmission speed of said first link is less than the average transmission speed of the second link and the third link, said method further comprises, before said first terminal sends at least part of said first data to said second terminal via said third link and said second link:

8. The method according to claim 1, characterized in that before the first terminal determines a sixth terminal from among K seventh terminals comprised in the set of terminals associated with the fifth terminal according to the second selection notification, the method further comprises:

9. A method of data transmission, the method further comprising:

the fifth link is a communication link between the first terminal and the sixth terminal, the sixth link is a communication link between the fifth terminal and the sixth terminal, and the transmission speed of a fourth link between the first terminal and the fifth terminal is smaller than the average transmission speed of the fifth link and the sixth link;

the first terminal obtains a transmission speed of a seventh link of K seventh terminals in a terminal set associated with the first terminal and the fifth terminal, and a transmission speed of a first link, where the first link is a communication link between the first terminal and a second terminal, and the second terminal is different from the fifth terminal, the sixth terminal, and the seventh terminal;

10. A terminal device, comprising: a memory for storing a computer program and a processor; the processor is adapted to perform the method of any of claims 1-8 or 9 when invoking the computer program.

11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1 to 8 or 9.