WO2011009339A1 - Method, system and device for transmitting data - Google Patents

Abstract

A method for transmitting data is provided. The method includes the following steps: a second mobile terminal receives an Access Point Name (APN) parameter and a first Internet Protocol (IP) address from a first mobile terminal, wherein the first IP address is the IP address allocated to the first mobile terminal by the access point corresponding to the APN parameter; the second mobile terminal accesses the corresponding access point according to the APN parameter; and, through the access point, the second mobile terminal establishes a data link with the first mobile terminal corresponding to the first IP address, and obtains the shared data of the first mobile terminal. A system for transmitting data and a corresponding mobile terminal are also provided in the present invention. The present invention enables remote transmission of large-capacity data between the mobile terminals, therefore improves the utilization rate of network resources and the user experience.

Description

 Method, system and device for data transmission

TECHNICAL FIELD The present invention relates to wireless communication technologies, and in particular, to a method, system, and apparatus for data transmission.

Background technique

 With the continuous development of the Internet, computers have become an indispensable part of people's lives. There are many Hyper Text Transport Protocol (HTTP) servers and File Transfer Protocol (FTP) servers on the Internet, all of which store a lot of data. Users log in to these servers and select and download the data they need from their computers. With the development of wireless communication technology, mobile phones have become an indispensable part of people's lives. Currently, mobile phones can transmit data to each other in a variety of ways. Mode 1, MMS: The user sends the data in the MMS through the network; In this way, due to the requirements of the MMS center, the data that each MMS can carry is capped, usually several hundred K, the amount of data that can be transmitted. Very small. Mode 2. Infrared: The user transmits data through the infrared interface; the distance of infrared transmission is very short, and the infrared interface of the transmitting end must be aligned with the infrared interface of the receiving end to transmit, which is very inconvenient. Mode 3: Bluetooth: The user transmits data through the Bluetooth interface; although Bluetooth does not need to align the interface like the infrared mode, but like the infrared method, the transmission distance is very short, and the data cannot be transmitted over long distances.

 In summary, it is difficult to transfer large amounts of data over long distances between mobile terminals or users using mobile terminals.

Summary of the invention The embodiments of the present invention provide a method, a system, and a device for data transmission, which are used to solve the problem that it is difficult to remotely transmit large-capacity data between mobile terminals or users using mobile terminals existing in the prior art. A method for data transmission provided by an embodiment of the present invention, the method includes: receiving, by a second mobile terminal, an access point name (APN) parameter and a first from a first mobile terminal

An IP address, where the first IP address is an IP address assigned by the access point corresponding to the APN parameter to the first mobile terminal; and the second mobile terminal accesses the corresponding access point according to the APN parameter And the second mobile terminal establishes a data link with the first mobile terminal corresponding to the first IP address by using the access point, and acquires shared data of the first mobile terminal. The step of the second mobile terminal accessing the corresponding access point includes: the second mobile terminal sending, to the access point, a Packet Data Protocol (PDP) activation request including the APN parameter; and the second The mobile terminal accesses the corresponding access point, and receives a second IP address assigned by the access point from the access point to the second mobile terminal. After the step of the second mobile terminal establishing a data link with the first mobile terminal corresponding to the first IP address, and acquiring the shared data of the first mobile terminal, the method further includes: The second mobile terminal is configured to test whether the data link between the first mobile terminal and the first mobile terminal is normal according to the first IP address. The step of the second mobile terminal acquiring the shared data of the first mobile terminal includes: After the second mobile terminal determines that the data link is normal, accessing the first mobile terminal by using the data link, selecting shared data to be transmitted; and transmitting, by the first mobile terminal, the second mobile terminal to select Share data.

The second mobile terminal is a plurality of; the first mobile terminal transmitting the shared data selected by the second mobile terminal includes: the first mobile terminal transmitting the selected shared data to the plurality of second mobile terminals one by one Or, the first mobile terminal simultaneously transmits the selected shared data to the plurality of second mobile terminals. The shared data is stored in the first mobile terminal and/or the shared data is stored in other devices connected to the first mobile terminal.

A system for data transmission according to an embodiment of the present invention, the system includes: a first mobile terminal, configured to: send a packet data protocol including an APN parameter to an access point corresponding to an access point name (APN) parameter (PDP) An activation request, after receiving the IP address from the access point, transmitting the APN parameter and the IP address to the second mobile terminal, and establishing a data link with the second mobile terminal through the access point, and Transmitting the shared data; and the second mobile terminal is configured to: access the corresponding access point according to the APN parameter, and establish a data link with the first mobile terminal corresponding to the IP address by using the access point, And acquiring shared data of the first mobile terminal.

The mobile terminal provided by the embodiment of the present invention includes: a receiving module, configured to: receive a first access point information APN parameter and a first IP address; and an access module, configured to: according to the An APN parameter, accessing the corresponding access point; and a first transmission module, configured to: establish, by the access point, a data link with the mobile terminal corresponding to the first IP address, and acquire the first The shared data of the mobile terminal corresponding to the IP address. The access module is further configured to: send, to the access point, a Packet Data Protocol (PDP) activation request including the first APN parameter, and after determining the access point corresponding to the access, receiving the The second IP address of the access point. The mobile terminal further includes: a detecting module, configured to: test, according to the first IP address, whether a data link between the mobile terminal corresponding to the first IP address is normal; the first transmission module further sets After the detecting module determines that the data link is normal, accessing, by using the data link, the mobile terminal corresponding to the first IP address, selecting and receiving the required transmission Shared data. The mobile terminal further includes: a sending module, configured to: send, to the access point corresponding to the second APN parameter, a Packet Data Protocol (PDP) activation request including the second APN parameter, where the second APN parameter is received After the third IP address sent by the corresponding access point, the second APN parameter and the third IP address or the first APN parameter and the second IP address are sent to other mobile terminals that need to obtain the shared data;

 And a second transmission module, configured to: send the self-shared data to the other mobile terminal. The other mobile terminals are multiple;

 The second transmission module is further configured to: when it is required to transmit its own shared data to a plurality of other mobile terminals, transmit the shared data to the plurality of other mobile terminals one by one, or simultaneously transmit the selected shared data to the plurality of other mobile terminals. The shared data is stored in the mobile terminal and/or the shared data is stored in other devices connected to the mobile terminal.

Another mobile terminal provided by the embodiment of the present invention, the mobile terminal includes: a sending module, configured to: send a packet including the second APN parameter to an access point corresponding to a second access point name (APN) parameter a data protocol (PDP) activation request, after receiving the third IP address sent by the access point corresponding to the second APN parameter, sending the second APN parameter and the third IP address to other mobile terminals that need to obtain the shared data;

 And a second transmission module, configured to: send the self-shared data to the other mobile terminal. The other mobile terminals are multiple;

The second transmission module is further configured to: when it is required to transmit the self-sharing data to the plurality of other mobile terminals, transmit the shared data to the plurality of other mobile terminals one by one, or simultaneously transmit the selected shared data to the plurality of other mobile terminals. The shared data is stored in the mobile terminal and/or the shared data is stored in other devices connected to the mobile terminal. In the present invention, since data between mobile terminals or users using mobile terminals can be transmitted like computers, the mobile terminals can transmit large-capacity data over long distances, thereby improving network resource utilization and user experience. .

1 is a schematic structural diagram of a system for data transmission according to an embodiment of the present invention; FIG. 2A is a schematic structural diagram of a first mobile terminal according to an embodiment of the present invention; FIG. 2B is a schematic structural diagram of a second mobile terminal according to an embodiment of the present invention; 2C is a schematic structural diagram of a third mobile terminal according to an embodiment of the present invention; FIG. 3 is a schematic structural diagram of a fourth mobile terminal according to an embodiment of the present invention; FIG. 4 is a schematic flowchart of a first data transmission method according to an embodiment of the present invention; 5 is a schematic flowchart of a method for data transmission according to a second embodiment of the present invention; FIG. 6 is a schematic diagram of data transmission performed by multiple mobile terminals according to an embodiment of the present invention.

In a preferred embodiment of the present invention, the first mobile terminal sends a Packet Data Protocol (PDP) activation request including an Access Point Name (APN) parameter to the access point, and will receive the packet data protocol (PDP) activation request. The IP address and the APN parameter and the first IP address from the access point are sent to the second mobile terminal; the second mobile terminal sends a PDP activation request including the received APN parameter to the access point, after accessing the access point , acquiring shared data of the first mobile terminal. Since data between mobile terminals or users using mobile terminals can be transmitted like computers, mobile terminals can transmit large amounts of data over long distances, thereby improving network resource utilization and user experience. The embodiments of the present invention are further described in detail below with reference to the accompanying drawings. As shown in FIG. 1, the system for data transmission in the embodiment of the present invention includes: a first mobile terminal 10 and a second mobile terminal 20. The first mobile terminal 10 is configured to: send a PDP activation request including an APN parameter to an access point corresponding to the APN parameter, receive a first IP address from the access point, and send the APN parameter and the first IP address, and send the shared data. . The first IP address is an IP address assigned to the first mobile terminal 10 by an APN parameter. The first mobile terminal 10 sends the APN parameter to the access point corresponding to the APN parameter.

After the PDP activation request, the access point determines the corresponding service type according to the APN parameter. For example, the APN parameter may identify a wireless service type such as a General Packet Radio Service (GPRS) and a Wireless Fidelity (WIFI); The first mobile terminal 10 is configured to receive the first IP address from the access point in the following manner: after accessing the access point, acquiring the first IP address assigned to the access point (ie, the activation is successful); The mobile terminal 10 is further arranged to send the APN parameter and the first IP address to the second mobile terminal 20. The APN parameter may be preset in the first mobile terminal 10, or the APN parameter may be acquired from the network side by the first mobile terminal 10. The first mobile terminal 10 sends the APN parameter and the first IP address to the second mobile terminal 10 in various manners, such as a short message, a multimedia message, a mail, etc., and can also be notified by the user using the first mobile terminal 10 by using a voice call. Second, the user of the mobile terminal 20. In a specific implementation process, after obtaining the first IP address, the first mobile terminal 10 may share corresponding data according to the first IP address. For example, the first mobile terminal 10 may establish an application server based on the session layer protocol.

(such as an HTTP server or an FTP server), and then share the corresponding data. That is, the first mobile terminal 10 treats itself as a session layer protocol based application server and then shares the corresponding data. The shared data may be stored in the first mobile terminal 10; it may also be stored on other devices connected to the first mobile terminal 10, such as a computer connected to the first mobile terminal 10, and the first mobile terminal 10 as a modem (Modulator) Demodulator, Modem), when the data in the computer can be used as shared data, see Figure 6. The second mobile terminal 20 is configured to: access the corresponding access point according to the received APN parameter from the first mobile terminal 10, establish a data link with the first mobile terminal 10 through the access point, and acquire the first mobile The shared data of the terminal. Specifically, after receiving the APN parameter and the first IP address from the first mobile terminal 10, the second mobile terminal 20 sends a PDP activation request including the APN parameter to the access point corresponding to the APN parameter;

 The access point determines the corresponding service type according to the APN parameter, and then the access point allocates a second IP address to the second mobile terminal 10. After the second mobile terminal 20 accesses the access point, the access point is allocated. The second IP address (ie activation is successful). Since the access points initiated by the first mobile terminal 10 and the second mobile terminal 20 are the same, the IP addresses obtained by the two parties (ie, the first IP address and the second IP address) are in the same network segment, that is, the same In a local area network. So far, the first mobile terminal 10 and the second mobile terminal 20 have established a data link. Preferably, after establishing the data link with the first mobile terminal 10, the second mobile terminal 20 tests whether the data link between itself and the first mobile terminal is normal, for example, the second mobile terminal 20 utilizes the Internet Control Message Protocol ( Internet Control Message Protocol (ICCMP) to test whether the data link between it and the first mobile terminal is normal;

If the data link is normal, the first mobile terminal 10 is accessed through the data link, and the shared data to be transmitted is selected; correspondingly, the first mobile terminal 10 transmits the shared data selected by the second mobile terminal 20. In a specific implementation process, if the first mobile terminal 10 needs to send data to the plurality of second mobile terminals 20, the first mobile terminal 10 may transmit the selected shared data to the plurality of second mobile terminals 20 one by one, or the first mobile The terminal 10 can simultaneously transmit the selected shared data to the plurality of second mobile terminals 20. As shown in FIG. 2A, the first mobile terminal in the embodiment of the present invention includes: a receiving module 100, an access module 110, and a first transmission module 120. The receiving module 100 is configured to: receive first APN parameters and first from other mobile terminals IP address. The access module 110 is configured to: access the corresponding access point according to the first APN parameter received by the receiving module 100. Specifically, the access module 110 sends a PDP activation request including the first APN parameter to the access point corresponding to the first APN parameter, and obtains a second IP address from the access point after accessing the corresponding access point ( That is, the activation is successful). The first transmission module 120 is configured to establish a data link by using the mobile terminal corresponding to the first IP address by the access point, and acquire shared data of the mobile terminal corresponding to the first IP address. The first transmission module 120 disconnects the data link between the mobile terminals corresponding to the first IP address after ending the data transmission. Ending data transfer includes but is not limited to one of the following:

 The data link between the second mobile terminal and the first mobile terminal is abnormal, the shared data transmission fails, or the shared data transmission is completed. Preferably, after the mobile terminal establishes a data link with the mobile terminal corresponding to the first IP address, the mobile terminal of the test instance may further include: a detecting module 130, see FIG. 2B. The detecting module 130 is configured to: according to the first IP address, test whether the data link between the mobile terminal corresponding to the first IP address is normal. For example, the detection module 130 uses the ICMP to test whether the data link between the mobile terminal corresponding to the first IP address is normal. Correspondingly, when the data link is normal, the first transmission module 120 accesses the first through the data link. The mobile terminal corresponding to the IP address, and select the shared data to be transmitted.

The mobile terminal of the embodiment of the present invention may further include: a sending module 140 and a second transmitting module 150, see FIG. 2C. The sending module 140 is configured to: send the second APN to the access point corresponding to the second APN parameter. The parameter PDP activation request sends the second APN parameter and the third IP address to other mobile terminals after receiving the third IP address from the access point corresponding to the second parameter. The third IP address is an IP address assigned by the access point corresponding to the second APN parameter to the mobile terminal as the data sharing party. Specifically, the sending module 140 sends a PDP activation request that includes the second APN parameter to the access point corresponding to the second APN parameter; the mobile terminal receives the third IP address sent by the access point corresponding to the second APN parameter. , determining that the access point has been accessed (ie, the activation is successful), and then sending the second APN parameter and the third IP address to other terminals that need to obtain shared data.

 The sending module 140 sends the second APN parameter and the third terminal to other terminals that need to acquire the shared data.

For the manner of the IP address, refer to the content of the parameter and the address sent by the first mobile terminal 10 in the system for data transmission in the embodiment of the present invention, and details are not described herein again. In a specific implementation process, after obtaining the third IP address, the sending module 140 may share corresponding data according to the first IP address. That is, the sending module 140 transmits the first APN parameter and the second IP address to other mobile terminals. For details, refer to the content of the data shared by the first mobile terminal 10 in the system for data transmission in the embodiment of the present invention, and details are not described herein again. The shared data may be stored in the mobile terminal of the embodiment of the present invention; or may be stored on another device connected to the mobile terminal of the embodiment of the present invention, for example, the computer is connected to the mobile terminal of the embodiment of the present invention, and the present invention is implemented. The mobile terminal of the example is connected to the modem as a modem, and the data in the computer can be used as shared data, as shown in FIG. 6. The second transmission module 150 is configured to: transmit its own shared data to other mobile terminals. In a specific implementation process, if the second transmission module 150 needs to send data to multiple mobile terminals, the second transmission module 150 may transmit shared data to multiple mobile terminals one by one, or the second transmission module 150 may simultaneously move to multiple mobile terminals. The terminal transmits shared data. As shown in FIG. 3, a fourth mobile terminal according to an embodiment of the present invention includes: a sending module 200 and a second transmitting module 210. The sending module 200 and the second transmitting module 210 have the same functions as the sending module 140 and the second transmitting module 150 in the first mobile terminal of the embodiment of the present invention, and details are not described herein again. As shown in FIG. 4, the first method for data transmission according to the embodiment of the present invention includes the following steps: Step 401: A second mobile terminal receives an APN parameter and a first IP address from a first mobile terminal, where the first IP address is an APN. The access point corresponding to the parameter is assigned to the IP address of the first mobile terminal. Step 402: The second mobile terminal accesses the corresponding access point according to the received APN parameter. Step 403: The second mobile terminal establishes a data link with the first mobile terminal corresponding to the first IP address by using the access point, and acquires shared data of the first mobile terminal. In step 402, the second mobile terminal sends a PDP activation request including an APN parameter to the access point corresponding to the APN parameter; the access point determines a corresponding service type according to the APN parameter, and then the access point allocates a first to the second mobile terminal. Two IP addresses;

 After the second mobile terminal accesses the access point, the second IP address from the access point is obtained (ie, the activation is successful). Since the access points initiated by the first mobile terminal and the second mobile terminal are the same, the IP addresses obtained by the two parties (ie, the first IP address and the second IP address) are in the same network segment, that is, in the same local area network. in. So far, the first mobile terminal and the second mobile terminal establish a data link. Preferably, after the second mobile terminal establishes a data link with the first mobile terminal, the data link between the first mobile terminal and the first mobile terminal is further tested. The step 402 and the step 403 may further include: Step a402: The second mobile terminal tests whether the data link between itself and the first mobile terminal is normal according to the first IP address.

 For example, the second mobile terminal uses ICMP to test whether the data link between the mobile terminal and the first mobile terminal is normal;

Correspondingly, in step 403, if the data link is normal, the second mobile terminal accesses the first mobile terminal through the data link, and selects the shared data to be transmitted; correspondingly, the first mobile terminal transmits the second mobile terminal to select Share data. In a specific implementation process, if the first mobile terminal needs to send the number to the multiple second mobile terminals According to the above, the first mobile terminal may transmit the selected shared data to the plurality of second mobile terminals one by one, or the first mobile terminal may simultaneously transmit the selected shared data to the plurality of second mobile terminals.

 The step 401 may further include: Step 400: The first mobile terminal sends a PDP activation request including an APN parameter to the access point corresponding to the APN parameter, and after receiving the first IP address from the access point, sending the APN. Parameters and first IP address. Specifically, the first mobile terminal sends a PDP activation request that includes the APN parameter to the access point corresponding to the APN parameter; the access point determines the corresponding service type according to the APN parameter, and then the access point allocates a first IP to the first mobile terminal. Address: After receiving the first IP address, the first mobile terminal determines that the access point has been accessed (ie, the activation is successful), and then the first mobile terminal sends the APN parameter and the first IP address to the second mobile terminal. The APN parameter may be preset in the first mobile terminal, or the APN parameter may be acquired from the network side by the first mobile terminal. The first mobile terminal sends the APN parameter and the first IP address to the second mobile terminal in multiple manners, such as a short message, a multimedia message, a mail, etc., and the second mobile terminal can also be notified by the user using the first mobile terminal by using a voice call. User. In a specific implementation process, after obtaining the first IP address, the first mobile terminal may share corresponding data according to the first IP address. For example, the first mobile terminal may establish an application server based on the session layer protocol (eg,

HTTP server or FTP server), and then share the corresponding data. That is, the first mobile terminal uses itself as a session layer protocol based application server and then shares the corresponding data. The shared data may be stored in the first mobile terminal; or may be stored on another device connected to the first mobile terminal, for example, the computer is connected to the first mobile terminal, and the first mobile terminal is connected to the modem as a modem, and then the computer is in the computer. The data can be used as shared data, see Figure 6.

 The step 403 may further include:

After the second mobile terminal ends the data transmission, disconnecting the data link with the first mobile terminal Road. Ending data transfer includes but is not limited to one of the following:

 The data link between the second mobile terminal and the first mobile terminal is abnormal, the shared data transmission fails, and the shared data transmission is completed. As shown in FIG. 5, the second method for data transmission in the embodiment of the present invention includes the following steps: Step 501: A first mobile terminal sends a PDP activation request including an APN parameter to an access point corresponding to the APN parameter. Step 502: The access point determines a corresponding service type according to the APN parameter, and then the access point allocates a first IP address to the first mobile terminal.

 Step 503: After receiving the first IP address from the access point, the first mobile terminal sends the APN parameter and the first IP address to the second mobile terminal. Step 504: After receiving the APN parameter and the first IP address from the first mobile terminal, the second mobile terminal sends a PDP activation request including the APN parameter to the access point corresponding to the APN parameter. Step 505: The access point determines a corresponding service type according to the APN parameter, and then the access point allocates a second IP address to the second mobile terminal. Because it is the same access point, the IP addresses obtained by the two communicating parties should be in the same network segment.

Step 506: The second mobile terminal uses the ICMP protocol to detect the data link between the first mobile terminal and the first communication terminal. If the connection is normal, step 507 is performed; otherwise, the data link with the first mobile terminal is disconnected. . If the second mobile terminal disconnects the data link with the first mobile terminal because the data link is abnormal, the process may return to step 504, that is, re-send the APN parameter to the access point corresponding to the APN parameter. PDP activation request. Step 507: The first mobile terminal establishes an application server based on a session layer protocol, and places a file to be shared on the server. The step 507 can be performed at any time after the step 502. Step 508: The second mobile terminal accesses the first communication by using the client software through the first IP address. Terminal, get shared data. Step 509: After ending the data transmission process, the second mobile terminal disconnects the data link with the first mobile terminal. It can be seen from the above embodiment that the second mobile terminal receives the access point information APN parameter and the first IP address from the first mobile terminal, where the first IP address is corresponding to the APN parameter. The access point is allocated to the IP address of the first mobile terminal; the second mobile terminal accesses the corresponding access point according to the APN parameter; the second mobile terminal passes the access point and The first mobile terminal corresponding to the first IP address establishes a data link, and acquires shared data of the first mobile terminal.

 Since the mobile terminals can transmit data between the mobile terminals, the large-capacity data can be transmitted between the mobile terminals over a long distance, thereby improving the network resource utilization and the user experience; and the solution can be implemented by the solution of the method embodiment. Data sharing between computers and between computers and mobile phones can also be achieved between data sharing between terminals and users of any size and at any distance. Since the embodiment of the method can directly send and receive data to and from the point, it does not need to be transited through the network server, thereby reducing the risk of leaking in the data transmission and improving the security and stability of the data transmission.

The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Industrial Applicability The first mobile terminal sends a PDP activation request including an APN parameter to an access point, and sends an IP address and an APN parameter from the access point and a first IP address to the second mobile terminal. The mobile terminal sends a PDP activation request including the received APN parameter to the access point, and after accessing the access point, acquires the shared data of the first mobile terminal. Since data between mobile terminals or users using mobile terminals can be transmitted like computers, mobile terminals can transmit large amounts of data over long distances, thereby improving network resource utilization and user experience.

Claims

Claim 1. A method of data transmission, the method comprising:  The second mobile terminal receives an access point name (APN) parameter and a first IP address from the first mobile terminal, where the first IP address is an access point corresponding to the APN parameter, and is allocated to the first mobile terminal The second mobile terminal accesses the corresponding access point according to the APN parameter; and the second mobile terminal establishes with the first mobile terminal corresponding to the first IP address by using the access point a data link, and acquiring shared data of the first mobile terminal. The method of claim 1, wherein the step of the second mobile terminal accessing the corresponding access point comprises: sending, by the second mobile terminal, the packet including the APN parameter to the access point Data Protocol (PDP) activation request;  The second mobile terminal accesses the corresponding access point, and receives a second IP address assigned by the access point from the access point to the second mobile terminal. 3. The method according to claim 1, wherein: the step of the second mobile terminal establishing a data link with the first mobile terminal corresponding to the first IP address, and acquiring the sharing of the first mobile terminal Before the step of the data, the method further includes: the second mobile terminal, according to the first IP address, testing whether a data link between the first mobile terminal and the first mobile terminal is normal; the second mobile terminal acquiring The step of sharing data of the first mobile terminal includes: after the second mobile terminal determines that the data link is normal, accessing the first mobile terminal by using the data link, selecting shared data to be transmitted; The first mobile terminal transmits the shared data selected by the second mobile terminal. The method of claim 3, wherein the second mobile terminal is multiple; The step of the first mobile terminal transmitting the shared data selected by the second mobile terminal includes: the first mobile terminal transmitting the selected shared data to the plurality of second mobile terminals one by one, or the first mobile terminal simultaneously The selected shared data is transmitted to the plurality of second mobile terminals. The method according to any one of claims 1 to 4, wherein the shared data is stored in the first mobile terminal and/or the shared data is stored in the first mobile terminal Connected to other devices. A system for data transmission, the system comprising: a first mobile terminal, configured to: send a packet data protocol (PDP) activation request including an APN parameter to an access point corresponding to an access point name (APN) parameter, After receiving the IP address from the access point, sending the APN parameter and the IP address to the second mobile terminal; and establishing a data link with the second mobile terminal by using the access point, and sending the shared data; And the second mobile terminal, configured to: access the corresponding access point according to the APN parameter, establish a data link with the first mobile terminal corresponding to the IP address by using the access point, and obtain the The shared data of the first mobile terminal. A mobile terminal, comprising: a receiving module, configured to: receive a first access point information APN parameter and a first IP address; and an access module, configured to: according to the first APN parameter, access corresponding And the first transmission module, configured to: establish a data link with the mobile terminal corresponding to the first IP address by using the access point, and acquire a mobile terminal corresponding to the first IP address Share data. The mobile terminal according to claim 7, wherein the access module is further configured to: send a packet data protocol (PDP) activation request including the first APN parameter to the access point, where After entering the corresponding access point, receiving a second IP address from the access point. The mobile terminal of claim 7, wherein the mobile terminal further comprises: a detecting module, configured to: test, according to the first IP address, whether a data link between the mobile terminal corresponding to the first IP address is normal; the first transmission module is further configured to: in the detecting module After determining that the data link is normal, the mobile terminal corresponding to the first IP address is accessed through the data link, and the shared data that needs to be transmitted is selected and received. The mobile terminal according to claim 7, wherein the mobile terminal further comprises: a sending module, configured to: send a packet data protocol including the second APN parameter to an access point corresponding to the second APN parameter a (PDP) activation request, after receiving the third IP address sent by the access point corresponding to the second APN parameter, sending the second APN parameter and the third IP address or the first APN to other mobile terminals that need to obtain the shared data Parameter and second IP address;  And a second transmission module, configured to: send the self-shared data to the other mobile terminal. The mobile terminal according to claim 10, wherein the other mobile terminals are multiple; the second transmission module is further configured to: when multiple shared mobile terminals need to send their own shared data, one by one Other mobile terminals transmit shared data, or simultaneously transmit selected shared data to a plurality of other mobile terminals. The mobile terminal according to any one of claims 7 to 11, wherein the shared data is stored in the mobile terminal and/or the shared data is stored in another connection with the mobile terminal In the device. A mobile terminal, comprising: a sending module, configured to: send, to an access point corresponding to a second access point name (APN) parameter, a packet data protocol (PDP) activation request including the second APN parameter, After receiving the third IP address allocated to the mobile terminal sent by the access point corresponding to the second APN parameter, sending the second APN parameter and the third IP address to other mobile terminals that need to obtain the shared data; and the second And a transmission module, configured to: send the self-shared data to the other mobile terminal. The mobile terminal according to claim 13, wherein the other mobile terminals are multiple; the second transmission module is further configured to: when sending data to be shared by a plurality of other mobile terminals, one by one Other mobile terminals transmit shared data, or simultaneously transmit selected shared data to a plurality of other mobile terminals. The mobile terminal according to any one of claims 13 to 14, wherein the shared data is stored in the mobile terminal and/or the shared data is stored in another connection with the mobile terminal In the device.