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: Beijing Xiaomi Technology Co Ltd; 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

Document transmission method, device and system

Technical field

The disclosure relates to the communications field, particularly relates to a kind of document transmission method, device and system.

Background technology

In daily life, user may need the file transfer in a smart machine (transmitting terminal) in another smart machine (receiving terminal), in order to achieve the above object, general document transmission process is as follows: receiving terminal and transmitting terminal adopt the Wireless Fidelity (WirelessFidelity of acquiescence frequency range, WIFI) focus connects, then transfer files.

In said process, WIFI hot spot is for being generally low-frequency range WIFI hot spot, but along with smart machine development, New Generation of Intelligent equipment supports height two frequency range WIFI hot spot mostly, therefore, if still adopt the WIFI hot spot of low-frequency range to carry out file transfer, transmission speed is too low, but if directly use the WIFI hot spot of high band to transmit, then there is again the problem that part smart machine is not supported.

Summary of the invention

For overcoming Problems existing in correlation technique, the disclosure provides a kind of document transmission method, device and system.

According to the first aspect of disclosure embodiment, provide a kind of document transmission method, described method comprises:

The Wireless Fidelity WiFi technology of acquiescence frequency range and opposite equip. is adopted to connect;

When local device and described opposite equip. are all supported to set the WiFi technology of frequency range, disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up, the frequency of described setting frequency range is higher than the frequency of described acquiescence frequency range;

The WiFi technology of described setting frequency range and described opposite equip. is adopted to connect and transfer files.

According to a kind of implementation of disclosure first aspect, described acquiescence frequency range is 2.4GHz frequency range, and described setting frequency range is 5GHz frequency range.

According to the another kind of implementation of disclosure first aspect, WiFi technology and the opposite equip. of described employing acquiescence frequency range connect, and comprising:

Create the WIFI hot spot of described acquiescence frequency range; Connected by the WIFI hot spot of described acquiescence frequency range and described opposite equip.; Or,

The described WiFi technology of acquiescence frequency range and the opposite equip. of adopting connects, and comprising:

Access the WIFI hot spot of the described acquiescence frequency range that described opposite equip. creates.

In this implementation, local device both can be the side creating focus, can be again a side of access focus.

According to the another kind of implementation of disclosure first aspect, WiFi technology and the described opposite equip. of described employing described setting frequency range connect, and comprising:

Create the WIFI hot spot of described setting frequency range; Connected by the WIFI hot spot of described setting frequency range and described opposite equip.; Or,

WiFi technology and the described opposite equip. of described employing described setting frequency range connect, and comprising:

Access the WIFI hot spot of the described setting frequency range that described opposite equip. creates.

According to the another kind of implementation of disclosure first aspect, the title of the WIFI hot spot of described setting frequency range is identical with the title of the WIFI hot spot of described acquiescence frequency range, and the access pin of the access pin of the WIFI hot spot of described setting frequency range and the WIFI hot spot of described acquiescence frequency range all adopts identical algorithms to generate according to described title.

In this implementation, the focus of twice establishment adopts same title and password, makes, when accessing the WIFI hot spot of setting frequency range, automatically to complete access, select without the need to user, convenient.

According to the another kind of implementation of disclosure first aspect, described method also comprises:

Judge whether described local device supports the WiFi technology of described setting frequency range.

Whether support the WiFi technology of described setting frequency range according to described local device, generate the described facility information of described local device, described facility information comprises the WiFi technology whether supporting to set frequency range;

The described facility information of described local device is sent to described opposite equip..

In this implementation, by sending the facility information of local device to opposite equip., opposite equip. also can be determined, and whether local device and opposite equip. support to set the WiFi technology of frequency range, thus determine whether to need to disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up.

Receive the facility information that described opposite equip. sends;

Judge whether described opposite equip. supports to set the WiFi technology of frequency range according to described facility information.

By above-mentioned implementation, the judgement whether local device and opposite equip. support the WiFi technology setting frequency range can be completed, with when all supporting the WiFi technology setting frequency range when local device and described opposite equip., disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up.

According to the another kind of implementation of disclosure first aspect, described when local device and described opposite equip. all support the WiFi technology setting frequency range, disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up, comprising:

Receive the connection switching instruction that described opposite equip. sends, it is that described opposite equip. determines that described local device and described opposite equip. send after all supporting the WiFi technology of setting frequency range that described connection switches instruction;

Switch instruction according to described connection, disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up.

According to the another kind of implementation of disclosure first aspect, the connection that described disconnection adopts the WiFi technology of described acquiescence frequency range and described opposite equip. to set up, adopts the WiFi technology of described setting frequency range and described opposite equip. to connect and transfer files, comprising:

Determine the size of file to be transmitted;

When the size of described file to be transmitted is greater than preset value, disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up, adopt the WiFi technology of described setting frequency range and described opposite equip. to connect and transfer files.

In this implementation, only when the size of file to be transmitted is greater than preset value, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, and adopt the WiFi technology of setting frequency range and opposite equip. to connect and transfer files, when avoiding file too small, it is longer than adopting the WiFi technology spended time of acquiescence frequency range to adopt the WiFi technology transfer files institute spended time (transmit time used namely switch focus required time) of setting frequency range.

According to the another kind of implementation of disclosure first aspect, the described size determining file to be transmitted, comprising:

When described local device is the transmitting terminal of file transfer, directly determine the size of described file to be transmitted;

When described local device is the receiving terminal of file transfer, receive the indication information that described opposite equip. sends, and determine the size of described file to be transmitted according to described indication information, described indication information is used to indicate the size of file to be transmitted.

When the size of described file to be transmitted is less than or equal to preset value, file transfer is carried out in the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up.

Generation also connects switching instruction to described opposite equip. transmission, and described connection switching instruction is used to indicate the connection that described opposite equip. disconnects the WiFi technology foundation of described acquiescence frequency range.

In this implementation, connect directly to opposite equip. mode and switch instruction, the connection of setting up with the WiFi technology indicating opposite equip. to disconnect acquiescence frequency range.

According to the second aspect of disclosure embodiment, provide a kind of document transmission method, described method comprises:

Link block, connects for the WiFi technology and opposite equip. adopting acquiescence frequency range;

Processing module, during for all supporting when local device and described opposite equip. to set the WiFi technology of frequency range, disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up, the frequency of described setting frequency range is higher than the frequency of described acquiescence frequency range;

Described link block, WiFi technology and described opposite equip. also for adopting described setting frequency range connect and transfer files.

According to a kind of implementation of the disclosure third aspect, described acquiescence frequency range is 2.4GHz frequency range, and described setting frequency range is 5GHz frequency range.

According to the another kind of implementation of the disclosure third aspect, described link block, for:

Described link block, for:

According to the another kind of implementation of the disclosure third aspect, the title of the WIFI hot spot of described setting frequency range is identical with the title of the WIFI hot spot of described acquiescence frequency range, and the access pin of the access pin of the WIFI hot spot of described setting frequency range and the WIFI hot spot of described acquiescence frequency range all adopts identical algorithms to generate according to described title.

According to the another kind of implementation of the disclosure third aspect, described device also comprises:

Judge module, for judging whether described local device supports the WiFi technology of described setting frequency range.

Generation module, whether the described local device for judging according to described judge module supports the WiFi technology of described setting frequency range, generates the described facility information of described local device, and described facility information comprises the WiFi technology whether supporting to set frequency range;

Sending module, for sending the described facility information of the described local device that described generation module generates to described opposite equip..

Receiver module, for receiving the facility information that described opposite equip. sends;

Judge module, for judging according to described facility information whether described opposite equip. supports to set the WiFi technology of frequency range.

According to the another kind of implementation of the disclosure third aspect, described processing module, comprising:

Receive submodule, the connection sent for receiving described opposite equip. switches instruction, and it is that described opposite equip. determines that described local device and described opposite equip. send after all supporting to set the WiFi technology of frequency range that described connection switches instruction;

Disconnecting submodule, for switching instruction according to described connection, disconnecting the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up.

Determine submodule, for determining the size of file to be transmitted;

Process submodule, for when the size of described file to be transmitted is greater than preset value, disconnect the connection adopting WiFi technology and the described opposite equip. of described acquiescence frequency range to set up, and control described link block and adopt the WiFi technology of described setting frequency range and described opposite equip. to connect also transfer files.

According to the another kind of implementation of the disclosure third aspect, describedly determine submodule, for:

According to the another kind of implementation of the disclosure third aspect, described process submodule, also for when the size of described file to be transmitted is less than or equal to preset value, control the connection that described link block adopts the WiFi technology of described acquiescence frequency range and described opposite equip. to set up and carry out file transfer.

Generation module, connects switching instruction for generating, and described connection switches instruction and is used to indicate the connection that described opposite equip. disconnects the WiFi technology foundation of described acquiescence frequency range;

Sending module, the described connection generated for sending described generation module to described opposite equip. switches instruction.

According to the third aspect of disclosure embodiment, provide a kind of file transfer means, described device comprises:

Processor;

For the memory of storage of processor executable instruction;

Wherein, described processor is configured to:

The WiFi technology of acquiescence frequency range and opposite equip. is adopted to connect;

According to the fourth aspect of disclosure embodiment, provide a kind of document transmission system, described system comprises first terminal equipment and the second terminal equipment,

Described first terminal equipment, connects for the WiFi technology and described second terminal equipment adopting acquiescence frequency range; When the WiFi technology setting frequency range all supported by described first terminal equipment and described second terminal equipment, disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described second terminal equipment to set up, the frequency of described setting frequency range is higher than the frequency of described acquiescence frequency range; The WiFi technology of described setting frequency range and described second terminal equipment is adopted to connect and transfer files;

Described second terminal equipment, connects for adopting the WiFi technology of described acquiescence frequency range and described first terminal equipment; When the WiFi technology setting frequency range all supported by described first terminal equipment and described second terminal equipment, disconnect the connection adopting the WiFi technology of described acquiescence frequency range and described first terminal equipment to set up, the frequency of described setting frequency range is higher than the frequency of described acquiescence frequency range; The WiFi technology of described setting frequency range and described first terminal equipment is adopted to connect and transfer files.

According to a kind of implementation of the disclosure the 7th aspect, described first terminal equipment is for creating the WIFI hot spot of described acquiescence frequency range;

Described second terminal equipment is for accessing the WIFI hot spot of the described acquiescence frequency range of described first terminal equipment establishment;

Or,

Described second terminal equipment is for creating the WIFI hot spot of described acquiescence frequency range;

Described first terminal equipment is for accessing the WIFI hot spot of the described acquiescence frequency range of described second terminal equipment establishment.

According to the another kind of implementation of the disclosure the 7th aspect, described first terminal equipment is for creating the WIFI hot spot of described setting frequency range;

Described second terminal equipment is for accessing the WIFI hot spot of the described setting frequency range of described first terminal equipment establishment;

Or,

Described second terminal equipment is for creating the WIFI hot spot of described setting frequency range;

Described first terminal equipment is for accessing the WIFI hot spot of the described setting frequency range of described second terminal equipment establishment.

The technical scheme that embodiment of the present disclosure provides can comprise following beneficial effect:

In the disclosure, be connected with opposite equip. by first adopting the acquiescence frequency range WiFi technology of low frequency, and after confirmation opposite equip. and local device all can support the setting frequency range WiFi technology of high frequency, the WiFi technology of setting frequency range is adopted to be connected with opposite equip. and transfer files, both avoid the too low problem of speed always adopting low-frequency range transmission to exist, turn avoid the problem directly using high band to carry out transmitting the equipment that exists not support.

Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the disclosure.

Accompanying drawing explanation

Accompanying drawing to be herein merged in specification and to form the part of this specification, shows embodiment according to the invention, and is used from specification one and explains principle of the present invention.

Fig. 1 is the application scenarios figure according to an exemplary embodiment.

Fig. 2 is the flow chart of a kind of document transmission method according to an exemplary embodiment.

Fig. 3 is the flow chart of a kind of document transmission method according to an exemplary embodiment.

Fig. 4 is the flow chart of a kind of document transmission method according to an exemplary embodiment.

Fig. 5 is the flow chart of a kind of document transmission method according to an exemplary embodiment.

Fig. 6 is the block diagram of a kind of file transfer means according to an exemplary embodiment.

Fig. 7 is the block diagram of a kind of file transfer means according to an exemplary embodiment.

Fig. 8 is the block diagram of the device of a kind of file transfer according to an exemplary embodiment.

Fig. 9 is the block diagram of a kind of document transmission system according to an exemplary embodiment.

Embodiment

Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Execution mode described in following exemplary embodiment does not represent all execution modes consistent with the present invention.On the contrary, they only with as in appended claims describe in detail, the example of apparatus and method that aspects more of the present invention are consistent.

For the ease of the description of embodiment, below first simply introduce the application scenarios of embodiment in the disclosure, see Fig. 1, this scene comprises local device 1 and opposite equip. 2.

Local device 1 and opposite equip. 2 being all provided with for carrying out file transfer applications, when needs carry out file transfer, following two kinds of modes between local device 1 and opposite equip. 2, can being adopted to complete transmission:

The first, the file transfer applications on local device 1 creates a WIFI hot spot, and opposite equip. 2 accesses this WIFI hot spot thus realizes file transfer.The second, local device 1 accesses the WIFI hot spot that opposite equip. 2 creates, thus realizes file transfer.Certainly, in the present embodiment, how main description local device 1 or opposite equip. 2 go the WIFI hot spot determining to create what frequency range to carry out file transfer, and detailed step sees below literary composition and describes.

Wherein, local device 1 and opposite equip. 2 include but are not limited to intelligent watch, smart mobile phone or panel computer.File transfer applications can be fast biography, dodge biography, face-to-face fast biography etc.

It should be noted that, kind and the quantity of above-described equipment are only citing, and the disclosure is not restricted this.

Fig. 2 is the flow chart of a kind of document transmission method according to an exemplary embodiment, and the method is performed by the local device in aforementioned applications scene, and see Fig. 2, the method comprises:

In step s 11, the WiFi technology of acquiescence frequency range and opposite equip. is adopted to connect.

In step s 12, when local device and opposite equip. all support the WiFi technology setting frequency range, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, set the frequency of frequency higher than acquiescence frequency range of frequency range.

Wherein, acquiescence frequency range can be 2.4GHz frequency range, and to set frequency range can be 5GHz frequency range.

In step s 13, the WiFi technology of setting frequency range and opposite equip. is adopted to connect and transfer files.

Fig. 3 is the flow chart of a kind of document transmission method according to an exemplary embodiment, and the method is performed by the local device in aforementioned applications scene, and see Fig. 3, the method comprises:

In the step s 21, the WIFI hot spot of acquiescence frequency range is created.

When user needs to carry out file transfer, the WIFI hot spot of acquiescence frequency range is created by file transfer applications, the equipment creating WIFI hot spot both can be the transmitting terminal of file transfer, also can be the receiving terminal of file transfer, specifically can be specified by file transfer applications.

In step S22, connected by the WIFI hot spot and opposite equip. giving tacit consent to frequency range.

Opposite equip., after the WIFI hot spot searching local device establishment, carries out accessing (as shown the WIFI hot spot title searched, user clicks this WIFI hot spot title and namely accesses) according to the selection of user.During access, need to carry out password authentification, opposite equip. generates access pin according to the title of this WIFI hot spot and preset algorithm (as hash algorithm), this preset algorithm is stored concurrently in local device and opposite equip., local device, when verifying the access pin of opposite equip., adopts above-mentioned preset algorithm equally.

Step S21 and step S22 realizes adopting the WiFi technology of acquiescence frequency range and opposite equip. to connect.

In step S23, when local device and opposite equip. all support the WiFi technology setting frequency range, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, set the frequency of frequency higher than acquiescence frequency range of frequency range.

In embodiments of the present invention, determine that local device and opposite equip. all support that the WiFi technology setting frequency range has following two kinds of modes:

First kind of way:

In order to determine whether local device supports to set the WiFi technology of frequency range, and the method can also comprise:

Judge whether local device supports to set the WiFi technology of frequency range.Application programming interfaces (the ApplicationProgrammingInterface that this judgement can be provided by application program, API) realize, the module supporting setting frequency range WiFi technology whether is there is as API detects local device, when the module supporting 5GHzWIFI technology being detected, judge the WiFi technology of local device support setting frequency range, otherwise, judge that local device does not support to set the WiFi technology of frequency range.

Further, the method can also comprise:

Whether support according to local device the WiFi technology setting frequency range, generate the facility information of local device, facility information comprises the WiFi technology whether supporting to set frequency range;

The facility information of local device is sent to opposite equip., also can determine to make opposite equip. whether local device and opposite equip. support to set the WiFi technology of frequency range, thus determine whether to need to disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up.

In order to determine whether opposite equip. supports to set the WiFi technology of frequency range, and the method can also comprise:

Receive the facility information that opposite equip. sends;

Judge whether opposite equip. supports to set the WiFi technology of frequency range according to facility information.

Opposite equip. is by the WIFI hot spot of this acquiescence frequency range of access, and send the said equipment information to local device, this facility information can be a single message, also can be included in a field in existing message.

The second way:

Receive the connection switching instruction that opposite equip. sends, it is send after opposite equip. determination local device and opposite equip. all support the WiFi technology of setting frequency range that connection switches instruction.When receive connection that opposite equip. sends switch refer to time, switch instruction according to connection, the connection adopting the acquiescence WiFi technology of frequency range and opposite equip. to set up can be disconnected.

In the present embodiment, except ensureing that local device and opposite equip. are all supported to set except the WiFi technology of frequency range, after determining that local device and opposite equip. all support to set the WiFi technology of frequency range, can also determine whether to disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up according to the size of transfer files.

The connection that above-mentioned disconnection adopts the WiFi technology of acquiescence frequency range and opposite equip. to set up, adopts the WiFi technology of setting frequency range and opposite equip. to connect and transfer files, comprising:

Determine the size of file to be transmitted;

When the size of file to be transmitted is greater than preset value, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, adopt the WiFi technology of setting frequency range and opposite equip. to connect and transfer files.

Wherein, above-mentioned preset value is according to focus switching delay time (connect from the WiFi technology of acquiescence frequency range the WiFi technology being switched to setting frequency range and connect required time), the WiFi technology transmission speed of acquiescence frequency range and the WiFi technology transmission speed of setting frequency range.

The WiFi technology transmission speed of preset value/setting frequency range+switching delay time≤the WiFi technology transmission speed of preset value/acquiescence frequency range.

Such as, the WiFi technology transmission speed of setting frequency range is 20M/s, and the WiFi technology transmission speed of acquiescence frequency range is 5M/s, and the switching delay time is 6s, then now preset value >=40M.

The preset value determined by above-mentioned condition, can ensure to adopt the WiFi technology efficiency of transmission of setting frequency range higher than the WiFi technology transmission adopting acquiescence frequency range.

Wherein, determine the size of file to be transmitted, comprising:

When local device is the transmitting terminal of file transfer, directly determine the size of file to be transmitted;

When local device is the receiving terminal of file transfer, receive the indication information that opposite equip. sends, and determine the size of file to be transmitted according to indication information, indication information is used to indicate the size of file to be transmitted.

Further, method can also comprise: when the size of file to be transmitted is less than or equal to preset value, and file transfer is carried out in the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up.

Further, the method can also comprise: when local device or opposite equip. do not support the WiFi technology setting frequency range, file transfer is carried out in the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up.

In step s 24 which, the WIFI hot spot of setting frequency range is created.

In step s 25, WIFI hot spot and opposite equip. by setting frequency range connect.

Step S24 and step S25 realizes adopting the WiFi technology of setting frequency range and opposite equip. to connect.

Wherein, the title of the WIFI hot spot of setting frequency range is identical with the title of the WIFI hot spot of acquiescence frequency range, and the access pin of the WIFI hot spot of setting frequency range all adopts identical algorithms (i.e. aforementioned preset algorithm) to generate according to title with the access pin of the WIFI hot spot of acquiescence frequency range.Therefore, when WIFI hot spot by give tacit consent to frequency range switch to high band time, due to the title of WIFI hot spot and password all for a change, opposite equip. can access automatically, and again selects without the need to user.

In step S26, with opposite equip. transfer files.

In the present embodiment, as follows with the process of opposite equip. transfer files:

When local device is transmitting terminal, sending transmission request to opposite equip., when receiving the transmission response that opposite equip. returns, sending file to opposite equip.;

When local device is receiving terminal, receive the transmission request that opposite equip. sends, return transmission response to opposite equip., receive the file that opposite equip. sends.

Further, method also comprises:

Generate and send connection switching instruction to opposite equip., connecting the connection switching and indicate the WiFi technology being used to indicate opposite equip. disconnection acquiescence frequency range to set up.

Certainly, in the present embodiment, also can not send to opposite equip. and connect switching instruction, because after the WIFI hot spot closedown of 2.4GHz frequency range, opposite equip. can disconnect this connection automatically.

In the present embodiment, acquiescence frequency range is 2.4GHz frequency range, and setting frequency range is 5GHz frequency range.

Fig. 4 is the flow chart of a kind of document transmission method according to an exemplary embodiment, and the method is performed by the local device in aforementioned applications scene, and see Fig. 4, the method comprises:

In step S31, the WIFI hot spot of the acquiescence frequency range that access opposite equip. creates.

Namely the WiFi technology of acquiescence frequency range and opposite equip. is adopted to connect.

In the present embodiment, the WIFI hot spot accessing the acquiescence frequency range that opposite equip. creates can comprise:

Search WIFI hot spot; The WIFI hot spot accessing opposite equip. establishment is selected according to user.

When accessing the WIFI hot spot that opposite equip. creates, local device generates access pin according to the title of this WIFI hot spot and preset algorithm, adopts this access pin to access the WIFI hot spot of opposite equip. establishment.This preset algorithm is stored concurrently in local device and opposite equip., and opposite equip., when verifying the access pin of local device, adopts above-mentioned preset algorithm equally.

In step s 32, when local device and opposite equip. all support the WiFi technology setting frequency range, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, set the frequency of frequency higher than acquiescence frequency range of frequency range.

Wherein, step S32 is identical with step S23.

In step S33, the WIFI hot spot of the setting frequency range that access opposite equip. creates.

Namely the WiFi technology of setting frequency range and opposite equip. is adopted to connect.

When WIFI hot spot by give tacit consent to frequency range switch to high band time, due to the title of WIFI hot spot and password all for a change, local device can access automatically, and again selects without the need to user.

In step S31 and S33, if attempt access repeatedly failure continuously, then point out bust this to user.

In step S34, with opposite equip. transfer files.

Wherein, step S34 is identical with step S26.

Fig. 5 is the flow chart of a kind of document transmission method according to an exemplary embodiment, as shown in Figure 5, the method is performed jointly by first terminal equipment and the second terminal equipment, wherein first terminal equipment and the second terminal equipment can be all local device above or opposite equip., and the method comprises the following steps:

In step S41, first terminal equipment creates the WIFI hot spot of acquiescence frequency range.

In step S42, the WIFI hot spot of the acquiescence frequency range that the second terminal equipment access first terminal equipment creates.

Second terminal equipment, after the WIFI hot spot searching the establishment of first terminal equipment, carries out accessing (as shown the WIFI hot spot title searched, user clicks this WIFI hot spot title and namely accesses) according to the selection of user.During access, need to carry out password authentification, second terminal equipment generates access pin according to the title of this WIFI hot spot and preset algorithm (as hash algorithm), this preset algorithm is stored concurrently in first terminal equipment and the second terminal equipment, first terminal equipment, when verifying the access pin of the second terminal equipment, adopts above-mentioned preset algorithm equally.

In step S43, when first terminal equipment props up the WiFi technology all supporting setting frequency range with the second terminal equipment, first terminal equipment and the second terminal equipment disconnect the connection adopting the WiFi technology of acquiescence frequency range to set up.

In order to determine whether first terminal equipment (or second terminal equipment) supports to set the WiFi technology of frequency range, and the method can also comprise:

First terminal equipment (or second terminal equipment) judges whether first terminal equipment (or second terminal equipment) supports to set the WiFi technology of frequency range.The application programming interfaces API that this judgement can be provided by application program realizes, the module supporting setting frequency range WiFi technology whether is there is as API detects first terminal equipment, when the module supporting 5GHzWIFI technology being detected, judge the WiFi technology of first terminal equipment support setting frequency range, otherwise, judge that first terminal equipment does not support to set the WiFi technology of frequency range.

Further, the method can also comprise:

Whether first terminal equipment (or second terminal equipment) supports according to first terminal equipment (or second terminal equipment) WiFi technology setting frequency range, generates the facility information of first terminal equipment (or second terminal equipment);

The facility information of first terminal equipment (or second terminal equipment) is sent to the second terminal equipment (or first terminal equipment), also can determine to make the second terminal equipment (or first terminal equipment) whether first terminal equipment and the second terminal equipment support to set the WiFi technology of frequency range, thus determine whether to need to disconnect the connection adopting the WiFi technology of acquiescence frequency range and the second terminal equipment (or first terminal equipment) to set up.

In the present embodiment, first terminal equipment and the second terminal equipment disconnect the connection adopting the WiFi technology of acquiescence frequency range to set up, and comprising:

First terminal equipment (or second terminal equipment) determines the size of file to be transmitted;

When the size of file to be transmitted is greater than preset value, first terminal equipment (or second terminal equipment) disconnects the connection adopting the WiFi technology of acquiescence frequency range and the second terminal equipment (or first terminal equipment) to set up, and then adopts the WiFi technology of setting frequency range and the second terminal equipment (or first terminal equipment) to connect and transfer files.

Wherein, according to above-mentioned preset value according to the focus switching delay time (from acquiescence frequency range WiFi technology connect be switched to setting frequency range WiFi technology connect required time), acquiescence frequency range WiFi technology transmission speed and setting frequency range WiFi technology transmission speed.

Wherein, first terminal equipment determines the size of file to be transmitted, comprising:

When first terminal equipment is the transmitting terminal of file transfer, first terminal equipment directly determines the size of file to be transmitted;

When first terminal equipment is the receiving terminal of file transfer, first terminal equipment receives the indication information that the second terminal equipment sends, and determines the size of file to be transmitted according to indication information, and indication information is used to indicate the size of file to be transmitted.

Second terminal equipment determines that the size of file to be transmitted is identical with said process.

Further, method can also comprise: when the size of file to be transmitted is less than or equal to preset value, and file transfer is carried out in the connection that first terminal equipment (or second terminal equipment) adopts the WiFi technology of acquiescence frequency range and the second terminal equipment (or first terminal equipment) to set up.

Further, the method can also comprise: when the WiFi technology setting frequency range do not supported by first terminal equipment or the second terminal equipment, file transfer is carried out in the connection that first terminal equipment (or second terminal equipment) adopts the WiFi technology of acquiescence frequency range and the second terminal equipment (or first terminal equipment) to set up.

In step S44, first terminal equipment creates the WIFI hot spot of setting frequency range.

In step S45, the WIFI hot spot of the setting frequency range that the second terminal equipment access first terminal equipment creates.

Wherein, the title of the WIFI hot spot of setting frequency range is identical with the title of the WIFI hot spot of acquiescence frequency range, and the access pin of the WIFI hot spot of setting frequency range all adopts identical algorithms (i.e. aforementioned preset algorithm) to generate according to title with the access pin of the WIFI hot spot of acquiescence frequency range.Therefore, when WIFI hot spot by give tacit consent to frequency range switch to high band time, due to the title of WIFI hot spot and password all for a change, the second terminal equipment can access automatically, and again selects without the need to user.

In step S46, first terminal equipment and the second terminal equipment carry out file transfer.

In the present embodiment, the process of first terminal equipment and the second terminal equipment transfer files is as follows:

When first terminal equipment is transmitting terminal, first terminal equipment sends transmission request to the second terminal equipment, when receiving the transmission response that the second terminal equipment returns, sends file to the second terminal equipment;

When first terminal equipment is receiving terminal, the second terminal equipment sends transmission request to first terminal equipment, when receiving the transmission response that first terminal equipment returns, sends file to first terminal equipment.

Further, method also comprises:

First terminal equipment (or second terminal equipment) generates and connects to switch to the second terminal equipment (or first terminal equipment) transmission and indicates, and connects switching instruction and is used to indicate the connection that the second terminal equipment (or first terminal equipment) disconnects the WiFi technology foundation of acquiescence frequency range.

Second terminal equipment (or first terminal equipment) receives the connection switching instruction that first terminal equipment (or second terminal equipment) sends.When the second terminal equipment (or first terminal equipment) receive connection that first terminal equipment (or second terminal equipment) sends switch refer to time, switch instruction according to connection, the connection adopting the WiFi technology of acquiescence frequency range to set up can be disconnected.

Certainly, in the present embodiment, first terminal equipment also can not send to connect to the second terminal equipment and switch instruction, because after the WIFI hot spot of 2.4GHz frequency range is closed, the second terminal equipment can disconnect this connection automatically.

In the disclosure, first terminal equipment is by first adopting the acquiescence frequency range WiFi technology of low frequency to be connected with the second terminal equipment, and when confirmation second terminal equipment and first terminal equipment all can support the setting frequency range WiFi technology of high frequency, first terminal equipment adopts the WiFi technology of setting frequency range to be connected with the second terminal equipment and transfer files, both avoid the too low problem of speed always adopting low-frequency range transmission to exist, turn avoid the problem directly using high band to carry out transmitting the equipment that exists not support.

Fig. 6 is the block diagram of a kind of file transfer means according to an exemplary embodiment, and this file transfer means or can be integrated on local device for aforementioned local device, and as shown in Figure 6, this device comprises:

Link block 501, connects for the WiFi technology and opposite equip. adopting acquiescence frequency range;

Processing module 502, during for all supporting when local device and opposite equip. to set the WiFi technology of frequency range, disconnects the connection adopting the WiFi technology of acquiescence frequency range to set up with opposite equip., sets the frequency of frequency range higher than the frequency giving tacit consent to frequency range;

Link block 501, WiFi technology and opposite equip. also for adopting setting frequency range connect and transfer files.

Fig. 7 is the block diagram of a kind of file transfer means according to an exemplary embodiment, and this file transfer means or can be integrated on local device for aforementioned local device, and as shown in Figure 7, this device comprises:

Link block 601, connects for the WiFi technology and opposite equip. adopting acquiescence frequency range;

Processing module 602, during for all supporting when local device and opposite equip. to set the WiFi technology of frequency range, disconnects the connection adopting the WiFi technology of acquiescence frequency range to set up with opposite equip., sets the frequency of frequency range higher than the frequency giving tacit consent to frequency range;

Link block 601, WiFi technology and opposite equip. also for adopting setting frequency range connect and transfer files.

Wherein, acquiescence frequency range is 2.4GHz frequency range, and setting frequency range is 5GHz frequency range.

When the WiFi technology and opposite equip. that adopt acquiescence frequency range connect, link block 601, for:

Create the WIFI hot spot of acquiescence frequency range; Connected by the WIFI hot spot and opposite equip. of giving tacit consent to frequency range; Or,

Link block 601, for:

The WIFI hot spot of the acquiescence frequency range that access opposite equip. creates.

When the WiFi technology and opposite equip. that adopt setting frequency range connect, link block 601, for:

Create the WIFI hot spot of setting frequency range; Connected by the WIFI hot spot and opposite equip. that set frequency range; Or,

Link block 601, for:

The WIFI hot spot of the setting frequency range that access opposite equip. creates.

In the present embodiment, the title of the WIFI hot spot of setting frequency range is identical with the title of the WIFI hot spot of acquiescence frequency range, and the access pin of the WIFI hot spot of setting frequency range all adopts identical algorithms to generate according to title with the access pin of the WIFI hot spot of acquiescence frequency range.

Further, device also comprises:

Judge module 603, for judging whether local device supports to set the WiFi technology of frequency range.

Further, device also comprises:

Generation module 604, whether the local device for judging according to judge module 601 supports the WiFi technology setting frequency range, generates the facility information of local device, and facility information comprises the WiFi technology whether supporting to set frequency range;

Sending module 605, for sending the facility information of the local device that generation module generates to opposite equip..

Further, device also comprises:

Receiver module 606, for receiving the facility information that opposite equip. sends;

Judge module 603, for judging according to facility information whether opposite equip. supports to set the WiFi technology of frequency range.

Wherein, processing module 602, comprising:

Receive submodule 6021, the connection sent for receiving opposite equip. switches instruction, and it is send after opposite equip. determination local device and opposite equip. all support to set the WiFi technology of frequency range that connection switches instruction;

Disconnecting submodule 6022, for switching instruction according to connection, disconnecting the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up.

In the present embodiment, processing module 602, comprising:

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

Process submodule 6024, for when the size of file to be transmitted is greater than preset value, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, and control connection module adopts the WiFi technology of setting frequency range and opposite equip. to connect and transfer files.

Wherein, determine submodule 6023, for:

Wherein, process submodule 6024, also for when the size of file to be transmitted is less than or equal to preset value, file transfer is carried out in the connection that control connection module adopts the WiFi technology of acquiescence frequency range and opposite equip. to set up.

In another kind of implementation, generation module 604, switches instruction for generating to connect, and connection switches instruction and is used to indicate the connection that opposite equip. disconnects the WiFi technology foundation of acquiescence frequency range;

Sending module 605, the connection generated for sending generation module to opposite equip. switches instruction.

About the device in above-described embodiment, wherein the concrete mode of modules executable operations has been described in detail in about the embodiment of the method, will not elaborate explanation herein.

Fig. 8 is the block diagram of a kind of device 120 for file transfer according to an exemplary embodiment.Such as, device 120 can be mobile terminal (as smart mobile phone etc.).

With reference to Fig. 8, device 120 can comprise following one or more assembly: processing components 122, memory 124, electric power assembly 126, multimedia groupware 128, audio-frequency assembly 130, the interface 132 of I/O (I/O), sensor cluster 134, and communications component 136.

The integrated operation of the usual control device 120 of processing components 122, such as with display, call, data communication, camera operation and record operate the operation be associated.Processing components 122 can comprise one or more processor 1220 to perform instruction, to complete all or part of step of above-mentioned method.In addition, processing components 122 can comprise one or more module, and what be convenient between processing components 122 and other assemblies is mutual.Such as, processing components 122 can comprise multi-media module, mutual with what facilitate between multimedia groupware 128 and processing components 122.

Memory 124 is configured to store various types of data to be supported in the operation of equipment 120.The example of these data comprises for any application program of operation on device 120 or the instruction of method, contact data, telephone book data, message, picture, video etc.Memory 124 can be realized by the volatibility of any type or non-volatile memory device or their combination, as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.

The various assemblies that electric power assembly 126 is device 120 provide electric power.Electric power assembly 126 can comprise power-supply management system, one or more power supply, and other and the assembly generating, manage and distribute electric power for device 120 and be associated.

Multimedia groupware 128 is included in the screen providing an output interface between described device 120 and user.In certain embodiments, screen can comprise liquid crystal display (LCD) and touch panel (TP).If screen comprises touch panel, screen may be implemented as touch-screen, to receive the input signal from user.Touch panel comprises one or more touch sensor with the gesture on sensing touch, slip and touch panel.Described touch sensor can the border of not only sensing touch or sliding action, but also detects the duration relevant to described touch or slide and pressure.In certain embodiments, multimedia groupware 128 comprises a front-facing camera and/or post-positioned pick-up head.When equipment 120 is in operator scheme, during as screening-mode or video mode, front-facing camera and/or post-positioned pick-up head can receive outside multi-medium data.Each front-facing camera and post-positioned pick-up head can be fixing optical lens systems or have focal length and optical zoom ability.

Audio-frequency assembly 130 is configured to export and/or input audio signal.Such as, audio-frequency assembly 130 comprises a microphone (MIC), and when device 120 is in operator scheme, during as call model, logging mode and speech recognition mode, microphone is configured to receive external audio signal.The audio signal received can be stored in memory 124 further or be sent via communications component 136.In certain embodiments, audio-frequency assembly 130 also comprises a loud speaker, for output audio signal.

I/O interface 132 is for providing interface between processing components 122 and peripheral interface module, and above-mentioned peripheral interface module can be keyboard, some striking wheel, button etc.These buttons can include but not limited to: home button, volume button, start button and locking press button.

Sensor cluster 134 comprises one or more transducer, for providing the state estimation of various aspects for device 120.Such as, sensor cluster 134 can detect the opening/closing state of equipment 120, the relative positioning of assembly, such as described assembly is display and the keypad of device 120, the position of all right checkout gear 120 of sensor cluster 134 or device 120 1 assemblies changes, the presence or absence that user contacts with device 120, the variations in temperature of device 120 orientation or acceleration/deceleration and device 120.Sensor cluster 134 can comprise proximity transducer, be configured to without any physical contact time detect near the existence of object.Sensor cluster 134 can also comprise optical sensor, as CMOS or ccd image sensor, for using in imaging applications.In certain embodiments, this sensor cluster 134 can also comprise acceleration transducer, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.

Communications component 136 is configured to the communication being convenient to wired or wireless mode between device 120 and other equipment.Device 120 can access the wireless network based on communication standard, as WiFi, 2G or 3G, or their combination.In one exemplary embodiment, communications component 136 receives from the broadcast singal of external broadcasting management system or broadcast related information via broadcast channel.In one exemplary embodiment, described communications component 136 also comprises near-field communication (NFC) module, to promote junction service.Such as, can based on radio-frequency (RF) identification (RFID) technology in NFC module, Infrared Data Association (IrDA) technology, ultra broadband (UWB) technology, bluetooth (BT) technology and other technologies realize.

In the exemplary embodiment, device 120 can be realized, for performing said method by one or more application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components.

In the exemplary embodiment, additionally provide a kind of non-transitory computer-readable recording medium comprising instruction, such as, comprise the memory 124 of instruction, above-mentioned instruction can perform said method by the processor 1220 of device 120.Such as, described non-transitory computer-readable recording medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage devices etc.

A kind of non-transitory computer-readable recording medium, when the instruction in described storage medium is performed by the processor of device, make device enough perform a kind of document transmission method, described method comprises:

When local device and opposite equip. all support the WiFi technology setting frequency range, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, set the frequency of frequency higher than acquiescence frequency range of frequency range;

The WiFi technology of setting frequency range and opposite equip. is adopted to connect and transfer files.

According to a kind of implementation of the present disclosure, acquiescence frequency range is 2.4GHz frequency range, and setting frequency range is 5GHz frequency range.

According to another kind of implementation of the present disclosure, adopt the WiFi technology of acquiescence frequency range and opposite equip. to connect, comprising:

Adopt the WiFi technology of acquiescence frequency range and opposite equip. to connect, comprising:

According to another kind of implementation of the present disclosure, adopt the WiFi technology of setting frequency range and opposite equip. to connect, comprising:

Adopt the WiFi technology of setting frequency range and opposite equip. to connect, comprising:

According to another kind of implementation of the present disclosure, the title of the WIFI hot spot of setting frequency range is identical with the title of the WIFI hot spot of acquiescence frequency range, and the access pin of the WIFI hot spot of setting frequency range all adopts identical algorithms to generate according to title with the access pin of the WIFI hot spot of acquiescence frequency range.

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

Judge whether local device supports to set the WiFi technology of frequency range.

The facility information of local device is sent to opposite equip..

Receive the facility information that opposite equip. sends;

According to another kind of implementation of the present disclosure, when local device and opposite equip. all support the WiFi technology setting frequency range, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, comprising:

Receive the connection switching instruction that opposite equip. sends, it is send after opposite equip. determination local device and opposite equip. all support the WiFi technology of setting frequency range that connection switches instruction;

Switch instruction according to connection, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up.

According to another kind of implementation of the present disclosure, disconnect the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up, adopt the WiFi technology of setting frequency range and opposite equip. to connect and transfer files, comprising:

Determine the size of file to be transmitted;

According to another kind of implementation of the present disclosure, determine the size of file to be transmitted, comprising:

When the size of file to be transmitted is less than or equal to preset value, file transfer is carried out in the connection adopting the WiFi technology of acquiescence frequency range and opposite equip. to set up.

Fig. 9 is the block diagram of a kind of document transmission system according to an exemplary embodiment, and as shown in Figure 9, system comprises first terminal equipment 161 and the second terminal equipment 162,

First terminal equipment 161, connects for the WiFi technology and the second terminal equipment 162 adopting acquiescence frequency range; When the WiFi technology setting frequency range all supported by first terminal equipment 161 and the second terminal equipment 162, disconnect the connection adopting the WiFi technology of acquiescence frequency range and the second terminal equipment 162 to set up, set the frequency of frequency higher than acquiescence frequency range of frequency range; The WiFi technology of setting frequency range and the second terminal equipment 162 is adopted to connect and transfer files;

Second terminal equipment 162, connects for the WiFi technology and first terminal equipment 161 adopting acquiescence frequency range; When the WiFi technology setting frequency range all supported by first terminal equipment 161 and the second terminal equipment 162, disconnect the connection adopting the WiFi technology of acquiescence frequency range and first terminal equipment 161 to set up, set the frequency of frequency higher than acquiescence frequency range of frequency range; The WiFi technology of setting frequency range and first terminal equipment 161 is adopted to connect and transfer files.

In one implementation, first terminal equipment 161 is for creating the WIFI hot spot of acquiescence frequency range;

Second terminal equipment 162 is for accessing the WIFI hot spot of the acquiescence frequency range of first terminal equipment 161 establishment;

Or,

Second terminal equipment 162 is for creating the WIFI hot spot of acquiescence frequency range;

First terminal equipment 161 is for accessing the WIFI hot spot of the acquiescence frequency range of the second terminal equipment 162 establishment.

In another kind of implementation, first terminal equipment 161 is for creating the WIFI hot spot of setting frequency range;

Second terminal equipment 162 is for accessing the WIFI hot spot of the setting frequency range of first terminal equipment 161 establishment;

Or,

Second terminal equipment 162 is for creating the WIFI hot spot of setting frequency range;

First terminal equipment 161 is for accessing the WIFI hot spot of the setting frequency range of the second terminal equipment 162 establishment.

In the present embodiment, first terminal equipment 161 and the second terminal equipment 162 all can perform aforesaid document transmission method.

Those skilled in the art, at consideration specification and after putting into practice invention disclosed herein, will easily expect other embodiment of the present invention.The application is intended to contain any modification of the present invention, purposes or adaptations, and these modification, purposes or adaptations are followed general principle of the present invention and comprised the undocumented common practise in the art of the disclosure or conventional techniques means.Specification and embodiment are only regarded as exemplary, and true scope of the present invention and spirit are pointed out by claim below.

Should be understood that, the present invention is not limited to precision architecture described above and illustrated in the accompanying drawings, and can carry out various amendment and change not departing from its scope.Scope of the present invention is only limited by appended claim.

Claims

1. a document transmission method, is characterized in that, described method comprises:

2. method according to claim 1, is characterized in that, described acquiescence frequency range is 2.4GHz frequency range, and described setting frequency range is 5GHz frequency range.

3. method according to claim 1 and 2, is characterized in that, the described WiFi technology of acquiescence frequency range and the opposite equip. of adopting connects, and comprising:

4. method according to claim 3, is characterized in that, WiFi technology and the described opposite equip. of described employing described setting frequency range connect, and comprising:

5. method according to claim 4, it is characterized in that, the title of the WIFI hot spot of described setting frequency range is identical with the title of the WIFI hot spot of described acquiescence frequency range, and the access pin of the access pin of the WIFI hot spot of described setting frequency range and the WIFI hot spot of described acquiescence frequency range all adopts identical algorithms to generate according to described title.

6. method according to claim 1 and 2, is characterized in that, described method also comprises:

7. method according to claim 6, is characterized in that, described method also comprises:

8. method according to claim 1 and 2, is characterized in that, described method also comprises:

Receive the facility information that described opposite equip. sends;

9. method according to claim 1 and 2, is characterized in that, described when local device and described opposite equip. all support the WiFi technology setting frequency range, disconnects the connection adopting the WiFi technology of described acquiescence frequency range and described opposite equip. to set up, comprising:

10. method according to claim 1 and 2, it is characterized in that, the connection that described disconnection adopts the WiFi technology of described acquiescence frequency range and described opposite equip. to set up, adopts the WiFi technology of described setting frequency range and described opposite equip. to connect and transfer files, comprising:

Determine the size of file to be transmitted;

11. methods according to claim 10, is characterized in that, the described size determining file to be transmitted, comprising:

12. methods according to claim 10, is characterized in that, described method also comprises:

13. methods according to claim 1 and 2, is characterized in that, described method also comprises:

14. 1 kinds of file transfer means, is characterized in that, described device comprises:

15. devices according to claim 14, is characterized in that, described acquiescence frequency range is 2.4GHz frequency range, and described setting frequency range is 5GHz frequency range.

16. devices according to claims 14 or 15, is characterized in that, described link block, for:

Described link block, for:

17. devices according to claim 16, is characterized in that, described link block, for:

Described link block, for:

18. devices according to claim 17, it is characterized in that, the title of the WIFI hot spot of described setting frequency range is identical with the title of the WIFI hot spot of described acquiescence frequency range, and the access pin of the access pin of the WIFI hot spot of described setting frequency range and the WIFI hot spot of described acquiescence frequency range all adopts identical algorithms to generate according to described title.

19. devices according to claims 14 or 15, it is characterized in that, described device also comprises:

20. devices according to claim 19, is characterized in that, described device also comprises:

21. devices according to claims 14 or 15, it is characterized in that, described device also comprises:

22. devices according to claims 14 or 15, it is characterized in that, described processing module, comprising:

23. devices according to claims 14 or 15, it is characterized in that, described processing module, comprising:

Determine submodule, for determining the size of file to be transmitted;

24. devices according to claim 23, is characterized in that, describedly determine submodule, for:

25. devices according to claim 23, it is characterized in that, described process submodule, also for when the size of described file to be transmitted is less than or equal to preset value, control the connection that described link block adopts the WiFi technology of described acquiescence frequency range and described opposite equip. to set up and carry out file transfer.

26. devices according to claims 14 or 15, it is characterized in that, described device also comprises:

27. 1 kinds of file transfer means, is characterized in that, described device comprises:

Processor;

For the memory of storage of processor executable instruction;

Wherein, described processor is configured to:

28. 1 kinds of document transmission systems, is characterized in that, described system comprises first terminal equipment and the second terminal equipment,

29. systems according to claim 28, is characterized in that, described first terminal equipment is for creating the WIFI hot spot of described acquiescence frequency range;

Or,

30. systems according to claim 28, is characterized in that, described first terminal equipment is for creating the WIFI hot spot of described setting frequency range;

Or,