CN105392169A

CN105392169A - File transmission method, device and system

Info

Publication number: CN105392169A
Application number: CN201510680189.8A
Authority: CN
Inventors: 万钰臻; 喻伟; 林兆钦
Original assignee: Xiaomi Inc
Current assignee: Xiaomi Inc
Priority date: 2015-10-19
Filing date: 2015-10-19
Publication date: 2016-03-09

Abstract

The invention relates to a file transmission method, a file transmission device and a file transmission system, which relate to the field of communication technologies. The file transmission method comprises the steps of: adopting a wireless high-fidelity WIFI technology of a default frequency band to establish connection with opposite terminal equipment; disconnecting the connection with the opposite terminal equipment established by adopting the WIFI technology of the default frequency band when both home terminal equipment and the opposite terminal equipment support a WIFI technology of a set frequency band, wherein the frequency of the set frequency band is higher than that of the default frequency band; and adopting the WIFI technology of the set frequency band to establish connection with the opposite terminal equipment and transmit files. According to the file transmission method, the file transmission device and the file transmission system, the low-frequency WIFI technology of the default frequency band is adopted to establish connection with the opposite terminal equipment, then the WIFI technology of the set frequency band is adopted to establish connection with the opposite terminal equipment and transmit files after confirming that both the home terminal equipment and the opposite terminal equipment can support the high-frequency WIFI technology of the set frequency band, thereby avoiding the problem of too low speed when low frequency band is adopted for transmission all the time, and avoiding the problem that the equipment does not support high frequency transmission when high frequency band is adopted for transmission directly.

Description

File transmission method, device and system

Technical Field

The present disclosure relates to the field of communications, and in particular, to a method, an apparatus, and a system for file transmission.

Background

In daily life, a user may need to transfer a file in one intelligent device (sending end) to another intelligent device (receiving end), and in order to achieve the above purpose, a general file transfer process is as follows: the receiving end and the sending end establish connection by adopting a wireless fidelity (WIFI) hotspot of a default frequency band, and then transmit files.

In the above process, the WIFI hotspot is a low-frequency-band WIFI hotspot generally, but with the development of the smart device, a new generation of smart device mostly supports two high-and-low-frequency-band WIFI hotspots, so if the low-frequency-band WIFI hotspot is still used for file transmission, the transmission speed is too low, but if the high-frequency-band WIFI hotspot is directly used for transmission, there is a problem that part of the smart device does not support.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a file transfer method, apparatus, and system.

According to a first aspect of the embodiments of the present disclosure, there is provided a file transfer method, the method including:

establishing connection with opposite-end equipment by adopting a wireless high-fidelity (WIFI) technology of a default frequency band;

when both the local terminal equipment and the opposite terminal equipment support the WIFI technology of the set frequency band, disconnecting the connection established between the WIFI technology of the default frequency band and the opposite terminal equipment, wherein the frequency of the set frequency band is higher than that of the default frequency band;

and establishing connection with the opposite terminal equipment by adopting the WIFI technology of the set frequency band and transmitting files.

According to an implementation manner of the first aspect of the present disclosure, the default frequency band is a 2.4GHz frequency band, and the set frequency band is a 5GHz frequency band.

According to another implementation manner of the first aspect of the present disclosure, the establishing a connection with an opposite device by using a WIFI technology of a default frequency band includes:

creating a WIFI hotspot of the default frequency band; establishing connection with the opposite terminal equipment through the WIFI hotspot of the default frequency band; or,

the method for establishing connection between the WIFI technology adopting the default frequency band and the opposite terminal equipment comprises the following steps:

accessing the WIFI hotspot of the default frequency band created by the opposite terminal equipment.

In this implementation, the local device may be a party that creates the hotspot, or a party that accesses the hotspot.

According to another implementation manner of the first aspect of the present disclosure, the establishing a connection with the peer device by using the WIFI technology of the set frequency band includes:

creating a WIFI hotspot of the set frequency band; establishing connection with the opposite terminal equipment through the WIFI hotspot of the set frequency band; or,

the establishing of the connection between the WIFI technology of the set frequency band and the opposite terminal equipment comprises the following steps:

accessing the WIFI hotspot of the set frequency band created by the opposite terminal equipment.

According to another implementation manner of the first aspect of the present disclosure, the name of the WIFI hotspot of the set frequency band is the same as the name of the WIFI hotspot of the default frequency band, and the access password of the WIFI hotspot of the set frequency band and the access password of the WIFI hotspot of the default frequency band are generated by using the same algorithm according to the names.

In the implementation mode, the hotspots created twice adopt the same name and password, so that when the WIFI hotspot with the set frequency band is accessed, the access can be automatically completed without user selection, and the method is more convenient.

According to another implementation of the first aspect of the present disclosure, the method further comprises:

and judging whether the local terminal equipment supports the WIFI technology of the set frequency band.

generating the device information of the local terminal device according to whether the local terminal device supports the WIFI technology of the set frequency band, wherein the device information comprises whether the local terminal device supports the WIFI technology of the set frequency band;

and sending the equipment information of the local terminal equipment to the opposite terminal equipment.

In this implementation manner, the device information of the local device is sent to the peer device, so that the peer device can also determine whether the local device and the peer device support the WIFI technology of the set frequency band, thereby determining whether the connection between the WIFI technology of the default frequency band and the peer device needs to be disconnected.

receiving equipment information sent by the opposite terminal equipment;

and judging whether the opposite terminal equipment supports the WIFI technology of the set frequency band according to the equipment information.

Through the implementation mode, the judgment of whether the local terminal equipment and the opposite terminal equipment support the WIFI technology of the set frequency band can be completed, so that when the local terminal equipment and the opposite terminal equipment both support the WIFI technology of the set frequency band, the connection between the WIFI technology of the default frequency band and the opposite terminal equipment is disconnected.

According to another implementation manner of the first aspect of the present disclosure, when both the local device and the peer device support the WIFI technology of the set frequency band, disconnecting the connection between the WIFI technology of the default frequency band and the peer device includes:

receiving a connection switching instruction sent by the opposite terminal device, wherein the connection switching instruction is sent by the opposite terminal device after the opposite terminal device determines that the local terminal device and the opposite terminal device both support a WIFI technology of a set frequency band;

and disconnecting the connection established between the WIFI technology adopting the default frequency band and the opposite terminal equipment according to the connection switching indication.

According to another implementation manner of the first aspect of the present disclosure, the disconnecting the connection between the WIFI technology in the default frequency band and the peer device, and the establishing connection between the WIFI technology in the set frequency band and the peer device and transmitting a file include:

determining the size of a file to be transmitted;

and when the size of the file to be transmitted is larger than a preset value, disconnecting the connection established between the WIFI technology adopting the default frequency band and the opposite terminal equipment, and establishing the connection between the WIFI technology adopting the set frequency band and the opposite terminal equipment and transmitting the file.

In the implementation mode, only when the size of the file to be transmitted is larger than the preset value, the connection between the WIFI technology adopting the default frequency band and the opposite terminal device is disconnected, the WIFI technology adopting the set frequency band is connected with the opposite terminal device and transmits the file, and the phenomenon that when the file is too small, the time (the time for transmission, namely the time for switching hot spots) consumed for transmitting the file by adopting the WIFI technology adopting the set frequency band is longer than the time consumed by adopting the WIFI technology adopting the default frequency band is avoided.

According to another implementation manner of the first aspect of the present disclosure, the determining the size of the file to be transmitted includes:

when the local terminal equipment is a transmitting terminal for file transmission, directly determining the size of the file to be transmitted;

when the local terminal device is a receiving terminal of file transmission, receiving indication information sent by the opposite terminal device, and determining the size of the file to be transmitted according to the indication information, wherein the indication information is used for indicating the size of the file to be transmitted.

and when the size of the file to be transmitted is smaller than or equal to a preset value, file transmission is carried out by adopting the connection established between the WIFI technology of the default frequency band and the opposite terminal equipment.

and generating and sending a connection switching instruction to the opposite terminal equipment, wherein the connection switching instruction is used for indicating the opposite terminal equipment to disconnect the connection established by the WIFI technology of the default frequency band.

In the implementation mode, the switching indication is directly connected to the opposite terminal device to indicate that the opposite terminal device disconnects the connection established by the WIFI technology of the default frequency band.

According to a second aspect of the embodiments of the present disclosure, there is provided a file transfer method, the method including:

the connection module is used for establishing connection with opposite-end equipment by adopting a default frequency band WIFI technology;

the processing module is used for disconnecting the connection established between the WIFI technology adopting the default frequency band and the opposite terminal equipment when the local terminal equipment and the opposite terminal equipment both support the WIFI technology of the set frequency band, wherein the frequency of the set frequency band is higher than that of the default frequency band;

the connection module is also used for establishing connection with the opposite terminal equipment by adopting the WIFI technology of the set frequency band and transmitting files.

According to an implementation manner of the third aspect of the present disclosure, the default frequency band is a 2.4GHz frequency band, and the set frequency band is a 5GHz frequency band.

According to another implementation manner of the third aspect of the present disclosure, the connection module is configured to:

the connection module is used for:

According to another implementation manner of the third aspect of the present disclosure, the name of the WIFI hotspot of the set frequency band is the same as the name of the WIFI hotspot of the default frequency band, and the access password of the WIFI hotspot of the set frequency band and the access password of the WIFI hotspot of the default frequency band are generated by using the same algorithm according to the names.

According to another implementation manner of the third aspect of the present disclosure, the apparatus further includes:

and the judging module is used for judging whether the local terminal equipment supports the WIFI technology of the set frequency band.

the generating module is configured to generate the device information of the local device according to whether the local device determined by the determining module supports the WIFI technology of the set frequency band, where the device information includes whether the local device supports the WIFI technology of the set frequency band;

a sending module, configured to send the device information of the local device generated by the generating module to the peer device.

a receiving module, configured to receive device information sent by the peer device;

and the judging module is used for judging whether the opposite terminal equipment supports the WIFI technology of the set frequency band according to the equipment information.

According to another implementation manner of the third aspect of the present disclosure, the processing module includes:

the receiving submodule is used for receiving a connection switching instruction sent by the opposite terminal equipment, wherein the connection switching instruction is sent after the opposite terminal equipment determines that the local terminal equipment and the opposite terminal equipment both support the WIFI technology of a set frequency band;

and the disconnection submodule is used for disconnecting the connection established between the WIFI technology adopting the default frequency band and the opposite terminal equipment according to the connection switching indication.

the determining submodule is used for determining the size of a file to be transmitted;

and the processing sub-module is used for disconnecting the connection established between the WIFI technology adopting the default frequency band and the opposite terminal equipment when the size of the file to be transmitted is larger than a preset value, controlling the connection module to establish connection between the WIFI technology adopting the set frequency band and the opposite terminal equipment and transmitting the file.

According to another implementation manner of the third aspect of the present disclosure, the determining sub-module is configured to:

According to another implementation manner of the third aspect of the present disclosure, the processing sub-module is further configured to control the connection module to perform file transmission by using a connection established between the WIFI technology of the default frequency band and the peer device when the size of the file to be transmitted is smaller than or equal to a preset value.

a generating module, configured to generate a connection switching instruction, where the connection switching instruction is used to instruct the peer device to disconnect the connection established by the WIFI technology in the default frequency band;

a sending module, configured to send the connection switching indication generated by the generating module to the peer device.

According to a third aspect of the embodiments of the present disclosure, there is provided a file transfer apparatus, the apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

establishing connection with opposite-end equipment by adopting a default frequency band WIFI technology;

According to a fourth aspect of the embodiments of the present disclosure, there is provided a file transfer system, the system comprising a first terminal device and a second terminal device,

the first terminal device is used for establishing connection with the second terminal device by adopting a default frequency band WIFI technology; when the first terminal device and the second terminal device both support the WIFI technology of the set frequency band, disconnecting the connection established between the WIFI technology of the default frequency band and the second terminal device, wherein the frequency of the set frequency band is higher than that of the default frequency band; establishing connection with the second terminal equipment by adopting the WIFI technology of the set frequency band and transmitting a file;

the second terminal device is used for establishing connection with the first terminal device by adopting the WIFI technology of the default frequency band; when the first terminal device and the second terminal device both support the WIFI technology of the set frequency band, disconnecting the connection established between the first terminal device and the WIFI technology of the default frequency band, wherein the frequency of the set frequency band is higher than that of the default frequency band; and establishing connection with the first terminal equipment by adopting the WIFI technology of the set frequency band and transmitting files.

According to an implementation manner of the seventh aspect of the present disclosure, the first terminal device is configured to create a WIFI hotspot of the default frequency band;

the second terminal device is used for accessing the WIFI hotspot of the default frequency band created by the first terminal device;

or,

the second terminal device is used for creating a WIFI hotspot of the default frequency band;

the first terminal device is used for accessing the WIFI hotspot of the default frequency band created by the second terminal device.

According to another implementation manner of the seventh aspect of the present disclosure, the first terminal device is configured to create a WIFI hotspot of the set frequency band;

the second terminal device is used for accessing the WIFI hotspot of the set frequency band created by the first terminal device;

or,

the second terminal device is used for creating the WIFI hotspot of the set frequency band;

the first terminal device is used for accessing the WIFI hotspot of the set frequency band created by the second terminal device.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

in the disclosure, the default frequency band WIFI technology with low frequency is firstly adopted to be connected with the opposite terminal equipment, and after the fact that the opposite terminal equipment and the local terminal equipment can both support the high-frequency set frequency band WIFI technology is confirmed, the WIFI technology with the set frequency band is adopted to be connected with the opposite terminal equipment and transmit files, so that the problem that the speed is too low due to the fact that low-frequency band transmission is always adopted is solved, and the problem that the equipment cannot support due to the fact that high-frequency band transmission is directly used is solved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a diagram illustrating an application scenario in accordance with an exemplary embodiment.

FIG. 2 is a flow diagram illustrating a file transfer method in accordance with an exemplary embodiment.

FIG. 3 is a flow diagram illustrating a file transfer method in accordance with an exemplary embodiment.

FIG. 4 is a flow diagram illustrating a file transfer method in accordance with an exemplary embodiment.

FIG. 5 is a flow diagram illustrating a file transfer method in accordance with an exemplary embodiment.

FIG. 6 is a block diagram illustrating a file transfer device in accordance with an exemplary embodiment.

Fig. 7 is a block diagram illustrating a file transfer device according to an example embodiment.

FIG. 8 is a block diagram illustrating an apparatus for file transfer in accordance with an exemplary embodiment.

FIG. 9 is a block diagram illustrating a file transfer system in accordance with an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

For the convenience of description of the embodiments, an application scenario of the embodiments in the present disclosure is briefly introduced below, and referring to fig. 1, the scenario includes a home device 1 and an opposite device 2.

The local terminal device 1 and the opposite terminal device 2 are both provided with applications for file transmission, and when file transmission is needed, the transmission can be completed between the local terminal device 1 and the opposite terminal device 2 by adopting the following two modes:

firstly, a file transmission application on the local terminal device 1 creates a WIFI hotspot, and the opposite terminal device 2 accesses the WIFI hotspot to realize file transmission. Secondly, the local terminal device 1 accesses to the WIFI hotspot created by the opposite terminal device 2, thereby implementing file transmission. Of course, in this embodiment, how the local device 1 or the peer device 2 determines what frequency band of the WIFI hotspot is created to perform file transmission is mainly described, and detailed steps are described later.

The local terminal device 1 and the opposite terminal device 2 both include but are not limited to a smart watch, a smart phone or a tablet computer. The file transfer application may be a flash transfer, a face-to-face flash transfer, and the like.

It should be noted that the types and the numbers of the devices described above are only examples, and the disclosure does not limit the devices.

Fig. 2 is a flowchart illustrating a file transfer method according to an exemplary embodiment, where the method is performed by a local device in the foregoing application scenario, and referring to fig. 2, the method includes:

in step S11, a connection is established with the peer device by using a default frequency band WIFI technology.

In step S12, when both the local device and the peer device support the WIFI technology of the set frequency band, the connection between the WIFI technology of the default frequency band and the peer device is disconnected, and the frequency of the set frequency band is higher than the frequency of the default frequency band.

The default frequency band may be a 2.4GHz frequency band, and the set frequency band may be a 5GHz frequency band.

In step S13, a connection is established with the peer device by using a WIFI technology of a set frequency band, and a file is transmitted.

Fig. 3 is a flowchart illustrating a file transfer method according to an exemplary embodiment, where the method is performed by a local device in the foregoing application scenario, and referring to fig. 3, the method includes:

in step S21, a WIFI hotspot of a default frequency band is created.

When a user needs to transmit a file, a WIFI hotspot of a default frequency band is created through a file transmission application, and a device for creating the WIFI hotspot can be a transmitting end of file transmission or a receiving end of the file transmission and can be specifically designated by the file transmission application.

In step S22, a connection is established with the peer device through the WIFI hotspot of the default frequency band.

After searching the WIFI hotspot created by the local terminal device, the opposite terminal device accesses the WIFI hotspot according to the selection of the user (if the searched WIFI hotspot name is displayed, the user clicks the WIFI hotspot name, and then the access is performed). When accessing, password verification is needed, the opposite terminal device generates an access password according to the name of the WIFI hotspot and a preset algorithm (such as a hash algorithm), the preset algorithm is stored in the local terminal device and the opposite terminal device at the same time, and the local terminal device also adopts the preset algorithm when verifying the access password of the opposite terminal device.

And S21 and S22 are used for establishing connection with opposite-end equipment by adopting a default frequency band WIFI technology.

In step S23, when both the local device and the peer device support the WIFI technology of the set frequency band, the connection between the WIFI technology of the default frequency band and the peer device is disconnected, and the frequency of the set frequency band is higher than the frequency of the default frequency band.

In the embodiment of the present invention, the WIFI technology that determines that both the local device and the peer device support the set frequency band has the following two modes:

the first mode is as follows:

in order to determine whether the local device supports the WIFI technology of the set frequency band, the method may further include:

and judging whether the local terminal equipment supports the WIFI technology of the set frequency band. This judgment can be realized by an Application Program Interface (API) provided by an application program, for example, the API detects whether the local device has a module supporting the WIFI technology of the set frequency band, when detecting the module supporting the 5ghz WIFI technology, it is judged that the local device supports the WIFI technology of the set frequency band, otherwise, it is judged that the local device does not support the WIFI technology of the set frequency band.

Further, the method may further include:

generating equipment information of the local terminal equipment according to whether the local terminal equipment supports the WIFI technology of the set frequency band, wherein the equipment information comprises whether the local terminal equipment supports the WIFI technology of the set frequency band;

and sending the device information of the local terminal device to the opposite terminal device, so that the opposite terminal device can also determine whether the local terminal device and the opposite terminal device support the WIFI technology of the set frequency band, and further determine whether the connection established between the WIFI technology adopting the default frequency band and the opposite terminal device needs to be disconnected.

In order to determine whether the peer device supports the WIFI technology of the set frequency band, the method may further include:

receiving equipment information sent by opposite-end equipment;

The opposite terminal device sends the device information to the local terminal device by accessing the WIFI hotspot of the default frequency band, and the device information can be a single message or a field contained in the existing message.

The second mode is as follows:

receiving a connection switching instruction sent by the opposite terminal equipment, wherein the connection switching instruction is sent after the opposite terminal equipment determines that the local terminal equipment and the opposite terminal equipment both support the WIFI technology of the set frequency band. When receiving a connection switching instruction sent by the opposite terminal equipment, according to the connection switching instruction, the connection established between the WIFI technology adopting the default frequency band and the opposite terminal equipment can be disconnected.

In this embodiment, in addition to ensuring that both the local device and the peer device support the WIFI technology of the set frequency band, it may be determined whether to disconnect the connection between the WIFI technology of the default frequency band and the peer device according to the size of the transmission file after determining that both the local device and the peer device support the WIFI technology of the set frequency band.

The disconnection adopts the connection established between the WIFI technology of the default frequency band and the opposite terminal equipment, and adopts the WIFI technology of the set frequency band to establish connection and transmit files with the opposite terminal equipment, and the disconnection method comprises the following steps:

determining the size of a file to be transmitted;

The preset values are determined according to hotspot switching delay time (time required for switching from the WIFI technical connection of the default frequency band to the WIFI technical connection of the set frequency band), the WIFI technical transmission speed of the default frequency band, and the WIFI technical transmission speed of the set frequency band.

The WIFI technology transmission speed of the preset value/set frequency band + the switching delay time is less than or equal to the preset value/default frequency band.

For example, the transmission speed of the WIFI technology in the set frequency band is 20M/s, the transmission speed of the WIFI technology in the default frequency band is 5M/s, the switching delay time is 6s, and then the preset value is greater than or equal to 40M.

The preset value determined by the conditions can ensure that the transmission efficiency of the WIFI technology adopting the set frequency band is higher than that of the WIFI technology adopting the default frequency band.

The method for determining the size of the file to be transmitted comprises the following steps:

when the local terminal equipment is a transmitting terminal for file transmission, directly determining the size of a file to be transmitted;

Further, the method may further comprise: and when the size of the file to be transmitted is smaller than or equal to a preset value, file transmission is carried out by adopting the connection established between the WIFI technology of the default frequency band and the opposite terminal equipment.

Further, the method may further include: and when the local terminal equipment or the opposite terminal equipment does not support the WIFI technology of the set frequency band, file transmission is carried out by adopting the connection established between the WIFI technology of the default frequency band and the opposite terminal equipment.

In step S24, a WIFI hotspot of a set frequency band is created.

In step S25, a connection is established with the peer device through the WIFI hotspot of the set frequency band.

And S24 and S25 are used for establishing connection with opposite-end equipment by adopting a WIFI technology with a set frequency band.

The name of the WIFI hotspot of the set frequency band is the same as that of the default frequency band, and the access password of the WIFI hotspot of the set frequency band and the access password of the WIFI hotspot of the default frequency band are generated by adopting the same algorithm (namely the preset algorithm) according to the names. Therefore, when the WIFI hotspot is switched from the default frequency band to the high frequency band, the name and the password of the WIFI hotspot are changed, and the opposite-end equipment can be automatically accessed without the need of selecting again by the user.

In step S26, the file is transferred with the peer device.

In this embodiment, the process of transmitting the file with the peer device is as follows:

when the local terminal equipment is a sending terminal, sending a transmission request to the opposite terminal equipment, and when a transmission response returned by the opposite terminal equipment is received, sending a file to the opposite terminal equipment;

when the local terminal device is a receiving terminal, receiving a transmission request sent by the opposite terminal device, returning a transmission response to the opposite terminal device, and receiving a file sent by the opposite terminal device.

Further, the method further comprises:

Of course, in this embodiment, a connection switching instruction may not be sent to the peer device, because the peer device may automatically disconnect the connection after the WIFI hotspot in the 2.4GHz band is closed.

In this embodiment, the default frequency band is a 2.4GHz frequency band, and the frequency band is set to be a 5GHz frequency band.

Fig. 4 is a flowchart illustrating a file transfer method according to an exemplary embodiment, where the method is performed by a local device in the foregoing application scenario, and referring to fig. 4, the method includes:

in step S31, a WIFI hotspot of a default frequency band created by the peer device is accessed.

Namely, a default frequency band WIFI technology is adopted to establish connection with the opposite terminal equipment.

In this embodiment, accessing to the WIFI hotspot of the default frequency band created by the peer device may include:

searching for a WIFI hotspot; and accessing the WIFI hotspot created by the opposite terminal equipment according to the selection of the user.

When accessing to the WIFI hotspot created by the opposite terminal equipment, the local terminal equipment generates an access password according to the name of the WIFI hotspot and a preset algorithm, and accesses to the WIFI hotspot created by the opposite terminal equipment by adopting the access password. The preset algorithm is stored in the local terminal device and the opposite terminal device simultaneously, and the opposite terminal device adopts the preset algorithm when verifying the access password of the local terminal device.

In step S32, when both the local device and the peer device support the WIFI technology of the set frequency band, the connection between the WIFI technology of the default frequency band and the peer device is disconnected, and the frequency of the set frequency band is higher than the frequency of the default frequency band.

Step S32 is the same as step S23.

In step S33, a WIFI hotspot of a set frequency band created by the peer device is accessed.

Namely, a WIFI technology with a set frequency band is adopted to establish connection with opposite terminal equipment.

When the WIFI hotspot is switched to the high frequency band from the default frequency band, the local terminal equipment can be automatically accessed without the need of the user to select again because the name and the password of the WIFI hotspot are changed.

In steps S31 and S33, if the successive attempts for access fail a plurality of times, the user is prompted for a transmission failure.

In step S34, the file is transferred with the peer device.

Step S34 is the same as step S26.

Fig. 5 is a flowchart illustrating a file transfer method according to an exemplary embodiment, where as shown in fig. 5, the method is executed by a first terminal device and a second terminal device together, where both the first terminal device and the second terminal device may be the foregoing local device or peer device, and the method includes the following steps:

in step S41, the first terminal device creates a WIFI hotspot in a default frequency band.

In step S42, the second terminal device accesses the WIFI hotspot of the default frequency band created by the first terminal device.

And after searching the WIFI hotspot created by the first terminal device, the second terminal device accesses the WIFI hotspot according to the selection of the user (for example, the searched WIFI hotspot name is displayed, and the user clicks the WIFI hotspot name to access the WIFI hotspot). When the access is performed, password verification is required, the second terminal device generates an access password according to the name of the WIFI hotspot and a preset algorithm (such as a hash algorithm), the preset algorithm is stored in the first terminal device and the second terminal device at the same time, and the preset algorithm is also adopted when the first terminal device verifies the access password of the second terminal device.

In step S43, when both the first terminal device and the second terminal device support the WIFI technology of the set frequency band, the first terminal device and the second terminal device disconnect the connection established by using the WIFI technology of the default frequency band.

In order to determine whether the first terminal device (or the second terminal device) supports the WIFI technology of the set frequency band, the method may further include:

the first terminal device (or the second terminal device) judges whether the first terminal device (or the second terminal device) supports the WIFI technology of the set frequency band. This judgement can be realized by the application program interface API that application program provided, if API detects first terminal equipment whether have the module that supports the WIFI technique of setting for the frequency channel, when detecting the module that supports 5GHzWIFI technique, judges that first terminal equipment supports the WIFI technique of setting for the frequency channel, otherwise, judges that first terminal equipment does not support the WIFI technique of setting for the frequency channel.

Further, the method may further include:

the method comprises the steps that a first terminal device (or a second terminal device) generates device information of the first terminal device (or the second terminal device) according to whether the first terminal device (or the second terminal device) supports a WIFI technology of a set frequency band;

the method comprises the steps of sending device information of first terminal equipment (or second terminal equipment) to second terminal equipment (or first terminal equipment), so that the second terminal equipment (or first terminal equipment) can also determine whether the first terminal equipment and the second terminal equipment support the WIFI technology of the set frequency band, and therefore whether connection established between the WIFI technology of the default frequency band and the second terminal equipment (or first terminal equipment) needs to be disconnected.

In this embodiment, the disconnection of the first terminal device and the second terminal device, which is established by using the default frequency band in the WIFI technology, includes:

the method comprises the steps that a first terminal device (or a second terminal device) determines the size of a file to be transmitted;

when the size of the file to be transmitted is larger than the preset value, the first terminal device (or the second terminal device) disconnects the connection established between the WIFI technology of the default frequency band and the second terminal device (or the first terminal device), and then the connection is established between the WIFI technology of the set frequency band and the second terminal device (or the first terminal device) and the file is transmitted.

According to the preset value, the delay time (the time required for switching from the WIFI technical connection of the default frequency band to the WIFI technical connection of the set frequency band), the WIFI technical transmission speed of the default frequency band and the WIFI technical transmission speed of the set frequency band are switched according to the hotspot.

The method for determining the size of the file to be transmitted by the first terminal device comprises the following steps:

when the first terminal equipment is a sending end of file transmission, the first terminal equipment directly determines the size of a file to be transmitted;

when the first terminal device is a receiving end of file transmission, the first terminal device receives indication information sent by the second terminal device, and determines the size of a file to be transmitted according to the indication information, wherein the indication information is used for indicating the size of the file to be transmitted.

The second terminal device determines that the size of the file to be transmitted is the same as the process.

Further, the method may further comprise: and when the size of the file to be transmitted is smaller than or equal to a preset value, the first terminal equipment (or the second terminal equipment) performs file transmission by adopting the connection established between the WIFI technology of the default frequency band and the second terminal equipment (or the first terminal equipment).

Further, the method may further include: when the first terminal device or the second terminal device does not support the WIFI technology of the set frequency band, the first terminal device (or the second terminal device) performs file transmission by adopting the connection established between the WIFI technology of the default frequency band and the second terminal device (or the first terminal device).

In step S44, the first terminal device creates a WIFI hotspot with a set frequency band.

In step S45, the second terminal device accesses the WIFI hotspot of the set frequency band created by the first terminal device.

The name of the WIFI hotspot of the set frequency band is the same as that of the default frequency band, and the access password of the WIFI hotspot of the set frequency band and the access password of the WIFI hotspot of the default frequency band are generated by adopting the same algorithm (namely the preset algorithm) according to the names. Therefore, when the WIFI hotspot is switched from the default frequency band to the high frequency band, the second terminal device can be automatically accessed without the need of the user to select again because the name and the password of the WIFI hotspot are changed.

In step S46, the first terminal device performs file transfer with the second terminal device.

In this embodiment, the process of the first terminal device and the second terminal device transmitting the file is as follows:

when the first terminal equipment is a sending end, the first terminal equipment sends a transmission request to the second terminal equipment, and when a transmission response returned by the second terminal equipment is received, a file is sent to the second terminal equipment;

when the first terminal equipment is a receiving end, the second terminal equipment sends a transmission request to the first terminal equipment, and when a transmission response returned by the first terminal equipment is received, the second terminal equipment sends a file to the first terminal equipment.

Further, the method further comprises:

the method comprises the steps that a first terminal device (or a second terminal device) generates and sends a connection switching instruction to the second terminal device (or the first terminal device), and the connection switching instruction is used for indicating the second terminal device (or the first terminal device) to disconnect the connection established by the WIFI technology of the default frequency band.

The second terminal device (or the first terminal device) receives the connection switching indication sent by the first terminal device (or the second terminal device). When the second terminal device (or the first terminal device) receives the connection switching instruction sent by the first terminal device (or the second terminal device), the connection established by the WIFI technology of the default frequency band can be disconnected according to the connection switching instruction.

Certainly, in this embodiment, the first terminal device may not send the connection switching instruction to the second terminal device, because the second terminal device may automatically disconnect the connection after the WIFI hotspot of the 2.4GHz band is closed.

In the disclosure, the first terminal device is connected with the second terminal device by adopting the default frequency band WIFI technology of the low frequency, and when confirming that the second terminal device and the first terminal device can both support the high frequency set frequency band WIFI technology, the first terminal device adopts the set frequency band WIFI technology to connect with the second terminal device and transmit files, so that the problem that the speed is too low when the low frequency band transmission is adopted all the time is avoided, and the problem that the device is not supported when the high frequency band is directly used for transmission is also avoided.

Fig. 6 is a block diagram illustrating a file transfer apparatus according to an exemplary embodiment, where the file transfer apparatus may be the aforementioned local device or integrated on the local device, and as shown in fig. 6, the apparatus includes:

a connection module 501, configured to establish a connection with an opposite device by using a default frequency band WIFI technology;

the processing module 502 is configured to disconnect a connection established between the WIFI technology in the default frequency band and the peer device when both the home device and the peer device support the WIFI technology in the set frequency band, where the frequency of the set frequency band is higher than the frequency of the default frequency band;

the connection module 501 is further configured to establish connection with an opposite device by using a WIFI technology with a set frequency band and transmit a file.

Fig. 7 is a block diagram of a file transfer apparatus according to an exemplary embodiment, where the file transfer apparatus may be the aforementioned local device or integrated on the local device, and as shown in fig. 7, the apparatus includes:

the connection module 601 is configured to establish connection with an opposite terminal device by using a default frequency band WIFI technology;

the processing module 602 is configured to, when both the local device and the peer device support a WIFI technology of a set frequency band, disconnect a connection established between the WIFI technology of the default frequency band and the peer device, where a frequency of the set frequency band is higher than a frequency of the default frequency band;

the connection module 601 is further configured to establish connection with an opposite terminal device by using a WIFI technology with a set frequency band and transmit a file.

The default frequency band is a 2.4GHz frequency band, and the set frequency band is a 5GHz frequency band.

When establishing a connection with an opposite terminal device by using a default frequency band WIFI technology, the connection module 601 is configured to:

establishing a WIFI hotspot of a default frequency band; establishing connection with opposite-end equipment through a WIFI hotspot of a default frequency band; or,

a connection module 601, configured to:

and accessing to a WIFI hotspot of a default frequency band created by the opposite terminal equipment.

When establishing connection with an opposite terminal device by using a WIFI technology of a set frequency band, the connection module 601 is configured to:

establishing a WIFI hotspot with a set frequency band; establishing connection with opposite-end equipment through a WIFI hotspot with a set frequency band; or,

a connection module 601, configured to:

and accessing to a WIFI hotspot which is established by the opposite terminal equipment and is set with a frequency band.

In this embodiment, the name of the WIFI hotspot of the set frequency band is the same as the name of the WIFI hotspot of the default frequency band, and the access password of the WIFI hotspot of the set frequency band and the access password of the WIFI hotspot of the default frequency band are generated by using the same algorithm according to the names.

Further, the apparatus further comprises:

the determining module 603 is configured to determine whether the local device supports a WIFI technology of a set frequency band.

Further, the apparatus further comprises:

a generating module 604, configured to generate device information of the local device according to whether the local device determined by the determining module 601 supports the WIFI technology of the set frequency band, where the device information includes whether the local device supports the WIFI technology of the set frequency band;

a sending module 605, configured to send the device information of the local device generated by the generating module to the peer device.

Further, the apparatus further comprises:

a receiving module 606, configured to receive device information sent by an opposite device;

the determining module 603 is configured to determine, according to the device information, whether the peer device supports a WIFI technology of a set frequency band.

Wherein, the processing module 602 includes:

the receiving submodule 6021 is configured to receive a connection switching instruction sent by the peer device, where the connection switching instruction is sent by the peer device after the peer device determines that both the local device and the peer device support the WIFI technology of the set frequency band;

and a disconnection submodule 6022 configured to disconnect, according to the connection switching instruction, the connection established between the WIFI technology in the default frequency band and the peer device.

In this embodiment, the processing module 602 includes:

a determining submodule 6023 for determining the size of the file to be transmitted;

and the processing sub-module 6024 is configured to disconnect the connection between the WIFI technology in the default frequency band and the peer device when the size of the file to be transmitted is larger than a preset value, and control the connection module to establish a connection between the WIFI technology in the set frequency band and the peer device and transmit the file.

Wherein, the determining submodule 6023 is configured to:

The processing sub-module 6024 is further configured to control the connection module to perform file transmission with the connection established by the peer device by using a default frequency band WIFI technology when the size of the file to be transmitted is smaller than or equal to a preset value.

In another implementation manner, the generating module 604 is configured to generate a connection switching instruction, where the connection switching instruction is used to instruct an opposite terminal device to disconnect a connection established by a WIFI technology in a default frequency band;

a sending module 605, configured to send the connection switching indication generated by the generating module to the peer device.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Fig. 8 is a block diagram illustrating an apparatus 120 for file transfer in accordance with an example embodiment. For example, the apparatus 120 may be a mobile terminal (e.g., a smart phone, etc.).

Referring to fig. 8, the apparatus 120 may include one or more of the following components: a processing component 122, a memory 124, a power component 126, a multimedia component 128, an audio component 130, an input/output (I/O) interface 132, a sensor component 134, and a communication component 136.

The processing component 122 generally controls overall operation of the device 120, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 122 may include one or more processors 1220 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 122 may include one or more modules that facilitate interaction between the processing component 122 and other components. For example, the processing component 122 may include a multimedia module to facilitate interaction between the multimedia component 128 and the processing component 122.

Memory 124 is configured to store various types of data to support operations at device 120. Examples of such data include instructions for any application or method operating on device 120, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 124 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 126 provide power to the various components of device 120. Power components 126 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 120.

The multimedia component 128 includes a screen that provides an output interface between the device 120 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 128 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 120 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 130 is configured to output and/or input audio signals. For example, audio component 130 includes a Microphone (MIC) configured to receive external audio signals when apparatus 120 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 124 or transmitted via the communication component 136. In some embodiments, audio component 130 also includes a speaker for outputting audio signals.

The I/O interface 132 provides an interface between the processing component 122 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 134 includes one or more sensors for providing various aspects of status assessment for the device 120. For example, the sensor assembly 134 may detect an open/closed state of the device 120, the relative positioning of the components, such as a display and keypad of the apparatus 120, the sensor assembly 134 may also detect a change in the position of the apparatus 120 or a component of the apparatus 120, the presence or absence of user contact with the apparatus 120, the orientation or acceleration/deceleration of the apparatus 120, and a change in the temperature of the apparatus 120. The sensor assembly 134 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 134 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 134 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 136 is configured to facilitate wired or wireless communication between the apparatus 120 and other devices. The device 120 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 136 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 136 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 120 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 124 comprising instructions, executable by the processor 1220 of the device 120 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

A non-transitory computer readable storage medium in which instructions, when executed by a processor of an apparatus, enable the apparatus to perform a file transfer method, the method comprising:

when the local terminal equipment and the opposite terminal equipment both support the WIFI technology of the set frequency band, disconnecting the connection established between the WIFI technology of the default frequency band and the opposite terminal equipment, wherein the frequency of the set frequency band is higher than that of the default frequency band;

and establishing connection with opposite-end equipment by adopting a WIFI technology with a set frequency band and transmitting a file.

According to one implementation of the present disclosure, the default frequency band is a 2.4GHz frequency band, and the set frequency band is a 5GHz frequency band.

According to another implementation manner of the present disclosure, establishing a connection with an opposite terminal device by using a WIFI technology of a default frequency band includes:

the WIFI technology of adopting acquiescent frequency channel establishes connection with opposite terminal equipment, includes:

According to another implementation manner of the present disclosure, establishing a connection with an opposite terminal device by using a WIFI technology for setting a frequency band includes:

the WIFI technology of adopting the settlement frequency channel is connected with the opposite terminal equipment, including:

According to another implementation manner of the present disclosure, the name of the WIFI hotspot of the set frequency band is the same as the name of the WIFI hotspot of the default frequency band, and the access password of the WIFI hotspot of the set frequency band and the access password of the WIFI hotspot of the default frequency band are generated by using the same algorithm according to the names.

According to another implementation of the present disclosure, the method further comprises:

receiving equipment information sent by opposite-end equipment;

According to another implementation manner of the present disclosure, when the local device and the peer device both support the WIFI technology of the set frequency band, the connection between the WIFI technology of the default frequency band and the peer device is disconnected, including:

receiving a connection switching instruction sent by opposite-end equipment, wherein the connection switching instruction is sent after the opposite-end equipment determines that the local-end equipment and the opposite-end equipment both support the WIFI technology of a set frequency band;

According to another implementation manner of the present disclosure, the connection between the WIFI technology that adopts the default frequency band and the peer device is disconnected, and the connection between the WIFI technology that adopts the set frequency band and the peer device is established and a file is transmitted, including:

determining the size of a file to be transmitted;

According to another implementation manner of the present disclosure, determining the size of a file to be transmitted includes:

Fig. 9 is a block diagram illustrating a file transfer system according to an exemplary embodiment, as shown in fig. 9, the system includes a first terminal device 161 and a second terminal device 162,

the first terminal device 161 is configured to establish a connection with the second terminal device 162 by using a default frequency band WIFI technology; when the first terminal device 161 and the second terminal device 162 both support the WIFI technology of the set frequency band, disconnecting the connection established between the WIFI technology of the default frequency band and the second terminal device 162, and setting the frequency of the frequency band to be higher than the frequency of the default frequency band; establishing connection with the second terminal device 162 by adopting a WIFI technology with a set frequency band and transmitting a file;

the second terminal device 162 is configured to establish a connection with the first terminal device 161 by using a default frequency band WIFI technology; when the first terminal device 161 and the second terminal device 162 both support the WIFI technology of the set frequency band, disconnecting the connection established between the first terminal device 161 and the WIFI technology of the default frequency band, and setting the frequency of the frequency band to be higher than the frequency of the default frequency band; and establishing connection with the first terminal equipment 161 by adopting a WIFI technology with a set frequency band and transmitting files.

In one implementation, the first terminal device 161 is configured to create a WIFI hotspot in a default frequency band;

the second terminal device 162 is configured to access a WIFI hotspot of a default frequency band created by the first terminal device 161;

or,

the second terminal device 162 is configured to create a WIFI hotspot in a default frequency band;

the first terminal device 161 is configured to access a WIFI hotspot of a default frequency band created by the second terminal device 162.

In another implementation manner, the first terminal device 161 is configured to create a WIFI hotspot with a set frequency band;

the second terminal device 162 is configured to access a WIFI hotspot of a set frequency band created by the first terminal device 161;

or,

the second terminal device 162 is configured to create a WIFI hotspot of a set frequency band;

the first terminal device 161 is configured to access a WIFI hotspot of a set frequency band created by the second terminal device 162.

In this embodiment, both the first terminal device 161 and the second terminal device 162 may execute the aforementioned file transfer method.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A method for file transfer, the method comprising:

2. The method of claim 1, wherein the default frequency band is a 2.4GHz frequency band, and wherein the set frequency band is a 5GHz frequency band.

3. The method according to claim 1 or 2, wherein the establishing of the connection with the peer device by using the default frequency band WIFI technology comprises:

4. The method of claim 3, wherein the establishing the connection with the peer device by using the WIFI technology with the set frequency band comprises:

5. The method according to claim 4, wherein the name of the WIFI hotspot in the set frequency band is the same as the name of the WIFI hotspot in the default frequency band, and the access password of the WIFI hotspot in the set frequency band and the access password of the WIFI hotspot in the default frequency band are generated by the same algorithm according to the names.

6. The method according to claim 1 or 2, characterized in that the method further comprises:

7. The method of claim 6, further comprising:

8. The method according to claim 1 or 2, characterized in that the method further comprises:

receiving equipment information sent by the opposite terminal equipment;

9. The method according to claim 1 or 2, wherein the disconnecting the connection between the WIFI technology in the default frequency band and the peer device when both the home device and the peer device support the WIFI technology in the set frequency band comprises:

10. The method according to claim 1 or 2, wherein the disconnecting the connection established between the WIFI technology of the default frequency band and the peer device, and the establishing the connection between the WIFI technology of the set frequency band and the peer device and transmitting the file include:

determining the size of a file to be transmitted;

11. The method of claim 10, wherein determining the size of the file to be transmitted comprises:

12. The method of claim 10, further comprising:

13. The method according to claim 1 or 2, characterized in that the method further comprises:

14. A file transfer apparatus, characterized in that the apparatus comprises:

15. The apparatus of claim 14, wherein the default frequency band is a 2.4GHz frequency band, and wherein the set frequency band is a 5GHz frequency band.

16. The apparatus of claim 14 or 15, wherein the connection module is configured to:

the connection module is used for:

17. The apparatus of claim 16, wherein the connection module is configured to:

the connection module is used for:

18. The device of claim 17, wherein the name of the WIFI hotspot of the set frequency band is the same as the name of the WIFI hotspot of the default frequency band, and the access password of the WIFI hotspot of the set frequency band and the access password of the WIFI hotspot of the default frequency band are both generated by using the same algorithm according to the names.

19. The apparatus of claim 14 or 15, further comprising:

20. The apparatus of claim 19, further comprising:

21. The apparatus of claim 14 or 15, further comprising:

22. The apparatus of claim 14 or 15, wherein the processing module comprises:

23. The apparatus of claim 14 or 15, wherein the processing module comprises:

24. The apparatus of claim 23, wherein the determination submodule is configured to:

25. The apparatus according to claim 23, wherein the processing sub-module is further configured to control the connection module to perform file transmission using a connection established between the WIFI technology in the default frequency band and the peer device when the size of the file to be transmitted is smaller than or equal to a preset value.

26. The apparatus of claim 14 or 15, further comprising:

27. A file transfer apparatus, characterized in that the apparatus comprises:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

28. A file transfer system, characterized in that the system comprises a first terminal device and a second terminal device,

29. The system of claim 28, wherein the first terminal device is configured to create a WIFI hotspot in the default frequency band;

or,

30. The system of claim 28, wherein the first terminal device is configured to create the WIFI hotspot of the set frequency band;

or,