WO2013174312A2

WO2013174312A2 - Control method and device, and mobile terminal

Info

Publication number: WO2013174312A2
Application number: PCT/CN2013/079717
Authority: WO
Inventors: 马海蓉
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-01-25
Filing date: 2013-07-19
Publication date: 2013-11-28
Also published as: WO2013174312A3; CN103974458A

Abstract

Provided are a control method and device, and a mobile terminal. The method is used for a mobile terminal, and the mobile terminal conducts AT command interaction with a user terminal through an AT command transmission passage which has been established between the mobile terminal and the user terminal. The method comprises: receiving a first AT command sent by a user terminal; judging whether the first AT command indicates to connect to a wireless network, and obtaining a first judgment result; and when the first judgment result is yes, generating a first wireless network connection instruction. The embodiments of the present invention can achieve high robust control of the action that a mobile terminal controls to connect to a wireless network.

Description

The present invention relates to the field of communications, and in particular, to a control method, device, and mobile terminal. BACKGROUND Currently, a user terminal such as a computer can access a cellular network (such as an EDGE/3G network) by using a mobile terminal such as a data card as a wireless MODEM. The user terminal needs to configure the APN parameter for the mobile terminal by using the standard AT command AT+CGDCONT, and then uses the PPP dialing method to control the behavior of the mobile terminal controlling the connection to the cellular network. However, PPP dialing requires the use of a dialer provided by the computer operating system, which is strongly related to the operating system. Once the services and related settings required by the dialer are changed by the user or other applications, the continuous execution of the dialer will fail or even be restored. In other words, the robustness of this control method is not high. SUMMARY OF THE INVENTION In view of this, an object of embodiments of the present invention is to provide a control method, apparatus, and mobile terminal to implement high robustness control of a mobile terminal controlling a behavior of connecting to a wireless network. The embodiment of the present invention provides a control method, which is used in a mobile terminal, and the mobile terminal performs an AT command interaction with the user terminal through an AT command transmission channel that has been established between the mobile terminal and the user terminal, and the method includes: Receiving a first AT command sent by the user terminal; determining whether the first AT command indicates to connect to the wireless network, obtaining a first determination result; and when the first determination result is YES, generating a first wireless network connection instruction. Preferably, the wireless network is a WIFI network, and the generating the first wireless network connection instruction comprises: parsing a WIFI hotspot identification parameter from the first AT command; generating the first wireless for indicating a connection to a WIFI hotspot The network connection command; wherein, the WIFI hotspot corresponds to the WIFI hotspot identification parameter. Preferably, before the receiving the first AT command sent by the user terminal, the method further includes: acquiring a scan result of the current WIFI network; sending a second AT command carrying the scan result to the user terminal, so that the user terminal The scan result can be parsed from the second AT command, and the first AT command is generated and transmitted to the mobile terminal according to the scan result. Preferably, the mobile terminal is provided with a first module for connecting a wireless network having a first network type and a second module for connecting a wireless network having a second network type, the generating the first wireless network connection instruction comprising: Parsing a network type parameter in the first AT command; generating, when the network type parameter is a first network type, the first wireless for controlling the first module to connect to a wireless network having a first network type a network connection instruction; when the network type parameter is a second network type, generating the first wireless network connection instruction for controlling the second module to connect to a wireless network having a second network type. Preferably, before the receiving the first AT command sent by the user terminal, the method further includes: controlling, by the user terminal, the first between the first module and the wireless network having the first network type Connecting, when the first connection is established, transmitting, to the user terminal, a third AT command carrying a connected state of the wireless network, so that the user terminal can generate and send a disconnection indication to the mobile terminal according to the third AT command. a fourth AT command; receiving the fourth AT command; controlling, according to the fourth AT command, the first module to disconnect the first connection; when the first connection is disconnected, transmitting to the user terminal The fifth AT command of the wireless network not connected state enables the user terminal to generate and transmit the first AT command to the mobile terminal according to the fifth AT command. Preferably, the controlling, by the user terminal, the first connection between the first module and the wireless network having the first network type is: receiving a sixth AT command sent by the user terminal; determining the Whether the six AT command indicates that the wireless network is connected to obtain a second determination result; when the second determination result is YES, the second wireless network connection instruction is generated. Preferably, the first network type is one of WIFI and a cell, and the second network type is one of WIFI and a cell except the first network type. The embodiment of the present invention provides a control device, which is used in a mobile terminal, where the device includes: a first receiving module, configured to receive a first AT command sent by a user terminal; and a determining module, configured to determine the first AT command Whether the connection to the wireless network is instructed to obtain a first determination result; and the generating module is configured to generate a first wireless network connection instruction when the first determination result is YES. Preferably, the wireless network is a WIFI network, and the generating module includes: a first parsing unit, configured to parse the WIFI hotspot identification parameter from the first AT command when the first determining result is yes; The first generating unit is configured to generate the first wireless network connection instruction for indicating a connection to the WIFI hotspot; wherein the WIFI hotspot corresponds to the WIFI hotspot identification parameter. Preferably, the mobile terminal is provided with a first module for connecting a wireless network having a first network type and a second module for connecting a wireless network having a second network type, the generating module comprising: a second analyzing unit, setting When the first determination result is YES, the network class is extracted from the first AT command. a second generating unit, configured to: when the network type parameter is a first network type, generate the first wireless network connection instruction for controlling the first module to connect to a wireless network having a first network type; And a unit, configured to: when the network type parameter is a second network type, generate the first wireless network connection instruction for controlling the second module to connect to a wireless network having a second network type. Preferably, the device further includes: a first control module, configured to: before the receiving module receives the first AT command sent by the user terminal, control, by the user terminal, the first module to establish and have the first network a first connection between the wireless networks of the type; the second sending module is configured to: before the receiving, receiving, by the receiving module, the first AT command sent by the user terminal, when the first connection is established, sending the wireless network to the user terminal a third AT command of the connected state, so that the user terminal can generate and send a fourth AT command indicating disconnection to the mobile terminal according to the third AT command; and the second receiving module is configured to receive the user terminal by the receiving module Before the first AT command is sent, the fourth AT command is received; the second control module is configured to: before the receiving module receives the first AT command sent by the user terminal, control the first according to the fourth AT command The module disconnects the first connection; the third sending module is configured to receive, before the receiving module receives the first AT command sent by the user terminal And transmitting, when the first connection is disconnected, a fifth AT command carrying a wireless network unconnected state to the user terminal, so that the user terminal can generate and send the first AT command to the mobile terminal according to the fifth AT command. . Preferably, the first control module includes: a control unit, configured to receive a sixth AT command sent by the user terminal before the receiving module receives the first AT command sent by the user terminal; and the determining unit is configured as the receiving module Before receiving the first AT command sent by the user terminal, determining whether the sixth AT command indicates to connect to the wireless network, and obtaining a second determination result; the fourth generating unit is configured to receive, by the receiving module, the first AT sent by the user terminal Before the command, when the second determination result is YES, a second wireless network connection instruction is generated. Embodiments of the present invention provide a mobile terminal including the above control device. As can be seen from the above, the embodiment of the present invention has at least the following beneficial effects: The mobile terminal performs an AT command interaction with the user terminal through an AT command transmission channel that has been established between the mobile terminal and the user terminal, and is sent by the receiving user terminal. The first AT command, when the first AT command indicates to connect to the wireless network, generates a first wireless network connection command, thereby achieving high robustness control of the behavior of the mobile terminal controlling the connected wireless network. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flow chart of steps of a control method according to an embodiment of the present invention; FIG. 2 is a block diagram of a software structure of a data card based on hardware WIFI; 3 is a flow chart of initializing AT commands; FIG. 4 is a flow chart for connecting AT commands; FIG. 5 is a flow chart for canceling connection AT commands; FIG. 6 is a flow chart for disconnecting AT commands; The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. FIG. 1 is a flowchart of a method for controlling a method according to an embodiment of the present invention. Referring to FIG. 1, an embodiment of the present invention provides a control method, where the method includes the following steps: Step 101: Receive a first AT command sent by a user terminal; Step 102: Determine whether the first AT command indicates to connect to the wireless network, and obtain a first determination result. Step 103: When the first determination result is yes, generate a first wireless network connection instruction. The method is applied to a mobile terminal, and the mobile terminal performs an AT command interaction with the user terminal through an AT command transmission channel established between the mobile terminal and the user terminal. It can be seen that the mobile terminal performs an AT command interaction with the user terminal through an AT command transmission channel that has been established between the mobile terminal and the user terminal, and receives the first AT command sent by the user terminal, and indicates that the first AT command is connected to the wireless network. The first wireless network connection command is generated, thereby achieving high robustness control of the behavior of the mobile terminal controlling the connection to the wireless network. In this way, the information exchange between the user terminal and the mobile terminal can be performed through the established AT command transmission channel, and the PPPOE transmission channel is no longer needed, thereby reducing the consumption of a certain time resource caused by establishing the PPPOE transmission channel and The certain transmission resources and processing resources are occupied between the mobile terminal and the user terminal, thereby achieving an efficient control of the behavior of the mobile terminal controlling the connection to the wireless network to a certain extent. The mobile terminal may be, for example, a data card, a mobile phone, a tablet, or the like. Determining whether the first AT command indicates to connect to the wireless network, and when obtaining a first determination result, the indicator following the character "AT" in the first AT command may be parsed from the first AT command, if it is a standard AT command "+", the first judgment result is No; if it is a custom specific character (such as " ^Λ "), the first judgment result is YES. For another example: parsing an indicator following the character "AT" in the first AT command from the first AT command, and if it is a customized specific character, parsing the command name following the specific character from the first AT command If it is a custom name representing the wireless network connection (such as "TCO 顺"), the first judgment result is yes; otherwise, the first judgment result is no. For another example, the indicator and the command name following the character "AT" in the first AT command are parsed from the first AT command, if the indicator is "+" representing the standard AT command and the command name is a preset The standard AT command name parses a custom parameter from the first AT command. If the parameter indicates a connection (such as <mode>, 1 indicates a connection), the first judgment result is yes; otherwise, the first The result of a judgment is no. The wireless network is, for example, a WIFI network, a cellular network such as 2G/3G, and the like. A wireless chip can be built in the mobile terminal, such as a WIFI chip or an EDGE/3G dual-mode chip; or an external wireless module, such as a WIFI module or an EDGE/3G dual-mode module. Correspondingly, the first wireless network connection command should be an instruction that can be recognized by the wireless chip or the wireless module and the wireless chip or the wireless module can be connected to the wireless network under the control of the first wireless network connection instruction. The first wireless network connection instruction may be designed and generated in various manners by those skilled in the art, and details are not described herein again. In the step 102 and the step 103 of the embodiment of the present invention, if the wireless network is a WIFI network, if the first AT command indicates that the wireless network is connected, there may be various situations, for example: Case 1, the first AT command may be The first wireless network connection command generated by the mobile terminal may carry a preset WIFI hotspot connection condition, for example, the signal strength is greater than a certain threshold. Or, in the second case, the first AT command may carry the WIFI hotspot connection condition, for example, the signal strength is greater than a certain threshold, and correspondingly, the first wireless network connection command generated by the mobile terminal may also carry the condition. Or, in the third case, the first AT command may carry WIFI hotspot identification parameters (such as SSID and bSSID) to indicate which WIFI hotspot is connected, and accordingly, may have: The generating the first wireless network connection command includes: parsing the WIFI hotspot identification parameter from the first AT command; generating a first wireless network connection instruction for indicating the connection of the WIFI hotspot; wherein the WIFI hotspot corresponds to the WIFI hotspot identification parameter. Thereby, control of the behavior of the mobile terminal controlling the connection of a specific WIFI hotspot can be realized. Considering that the mobile terminal controls the setting of its own WIFI chip to connect to the WIFI network, this also enhances the control capability of the user terminal to connect the mobile terminal to the WIFI network. Corresponding to the above situation, the first wireless network connection command should be an instruction that can be recognized by the wireless chip built in the mobile terminal or an external wireless module, and the wireless chip or the wireless module can be executed under the control of the first wireless network connection instruction. Corresponding operations (such as connecting to a WIFI hotspot that satisfies the condition information, connecting to a WIFI hotspot indicating the connection). The first wireless network connection instruction can be designed and generated in various manners by those skilled in the art, and details are not described herein again. Further, it is considered that the user terminal may need to know the scanning condition of the WIFI network before instructing to connect to the WIFI network. In this regard, before receiving the first AT command sent by the user terminal, the method may further include: acquiring a current WIFI network. Scanning result; transmitting a second AT command carrying the scan result to the user terminal, so that the user terminal can parse the scan result from the second AT command, and generate and send the first AT command to the mobile terminal according to the scan result. The scan result may be acquired by the mobile terminal or may be obtained by the user terminal. The scan result may include a scanned list of WIFI hotspot identifiers, and optionally, information such as signal strength of each WIFI hotspot in the list. In addition, considering that the mobile terminal itself has the ability to connect two types of wireless networks, such as a cellular wireless network and a WIFI wireless network, the PPP dialing control mode can be reserved for the cellular wireless network, and the WIFI wireless network is used for the WIFI wireless network. In the embodiment of the present invention, the control method based on the AT command is used. However, from the perspective of a user terminal such as a computer, two different methods do the same thing (ie, using a mobile terminal such as a data card as a wireless MODEM to access the network), The complexity of the system consumes a certain amount of transmission resources and processing resources, which reduces the efficiency of control to a certain extent. The AT command is simple in design and extensible, so it can be further used for the control of the behavior of the mobile terminal controlling the connection of different types of wireless networks by the user terminal. This type of control is more efficient and achieves the goal that cannot be achieved only by using PPP dialing. In view of this, when the mobile terminal has the ability to control connection to multiple types of wireless networks, it can still be controlled by means of an AT command, for example, using different AT command names to indicate connection to different types of wireless networks; Or, use different parameters to represent the connection to a different type of wireless network. Corresponding to the latter, specifically, there may be the following examples: The mobile terminal is provided with a first module for connecting a wireless network having a first network type and a second module for connecting a wireless network having a second network type, and generating the first wireless network connection instruction comprises: from the first AT command Parsing the network type parameter; when the network type parameter is the first network type, generating a first wireless network connection instruction for controlling the first module to connect to the wireless network having the first network type; and when the network type parameter is the second network type And generating, by the second module, a first wireless network connection instruction for controlling the second module to connect to the wireless network having the second network type. In this example, the user terminal can control the behavior of the mobile terminal to control different types of wireless networks simply and conveniently through an AT command. Further, in consideration of the fact that the user terminal may not need to connect to the different types of wireless networks at the same time, in view of the above, the method may further include: before receiving the first AT command sent by the user terminal, the method further includes: under the control of the user terminal Controlling, by the first module, a first connection with the wireless network having the first network type; when the first connection is established, transmitting, to the user terminal, a third AT command carrying the connected state of the wireless network, so that the user terminal can enable Generating and transmitting to the mobile terminal a fourth AT command indicating disconnection according to the third AT command; receiving a fourth AT command; controlling the first module to disconnect the first connection according to the fourth AT command; when the first connection is disconnected And transmitting, to the user terminal, a fifth AT command carrying a wireless network unconnected state, so that the user terminal can generate and send the first AT command to the mobile terminal according to the fifth AT command. Therefore, the user terminal instructs to connect to a specific type of wireless network when confirming that the connection is disconnected, thereby implementing simple control of the control behavior of the mobile terminal for the wireless network connection and disconnection of the mobile terminal, and simplifying the control process. Convenient, reliable and efficient. The controlling, by the user terminal, the first connection between the first module and the wireless network having the first network type may include: receiving a sixth AT command sent by the user terminal; determining whether the sixth AT command indicates the connection The wireless network obtains a second determination result; when the second determination result is YES, generates a second wireless network connection instruction. Thereby, the user terminal controls, by the second AT command, the behavior of the mobile terminal controlling the connection to the specific type of wireless network, and when the first connection is established, instructing the mobile terminal to disconnect the first connection by using the fourth AT command, in the first connection When disconnected, the behavior of the mobile terminal to control a specific type of wireless network is controlled by the first AT command, so that the user terminal can conveniently establish and disconnect the mobile terminal for the case where the two specific types are of the same type. Controlling the behavior of a specific type of wireless network connection; for the case where the two specific types are different types, the user terminal can conveniently control the mobile terminal, so that the mobile terminal can control the wireless path corresponding to the first module at the air interface. Any switching between the wireless channels corresponding to the second module. In the embodiment of the present invention, the first network type may be one of the WIFI and the cellular, and the second network type may be one of the WIFI and the cellular except the first network type. In the embodiment of the present invention, when the mobile terminal is a data card and the wireless network is a WIFI network, there is another advantage, and the specific description is as follows: With the development of the WIFI technology, the deployment of the AP hotspot is gradually increased, and more and more The more terminal products are starting to support WIFI. Traditional data cards have also begun to evolve into T+W data cards. T is TD-SCDMA, W is WLAN, which means that compared to the traditional data card, through the operation of the UI interface, not only can connect 2G/3G network, but also can switch to WIFI in any place with WIFI environment. Data business. Compared with 2G/3G networks, WIFI networks have the characteristics of fast speed and no traffic restriction. Can enrich the use of the data card. However, the τ+w data card mentioned here still has certain usage restrictions, because the data card itself does not.

WIFI chip, so when connecting to WIFI network, you need to borrow the wireless network card on the connected user terminal (such as computer), such as the built-in wireless network card that comes with the laptop. If the user terminal does not have a wireless network card, you can't connect to the WIFI network. For data cards. For this inconvenient place, a WIFI chip can be added to the data card, and the WIFI chip set on the data card itself is connected to the WIFI network. However, at present, the user terminal cannot control the behavior of the data card to control the connection to the WIFI network. Therefore, specific to the case where the mobile terminal is a data card, another advantage of the embodiment of the present invention is to provide a control method for controlling the behavior of the data card to connect to the WIFI network. Moreover, when the data card is inserted into the user terminal, the NDIS network card device can be enumerated. The device is in a non-connected state by default, and after the WIFI connection is successful, the device is placed in a connected state, and the device becomes a channel for data transmission. The data card then allocates IP to the user terminal through the DHCP server, so that the user terminal can perform data service through the data card. This also solves the problem that the user terminal side software with the hardware WIFI chip T+W type data card is difficult to control. In this way, the user terminal can still access the WIFI network through the data card without the wireless network card or the wireless network card is temporarily unavailable or temporarily disabled, thereby expanding the application scenario of the data card. In order to further clarify the embodiment of the present invention, the following is an example of the embodiment of the present invention, in which the user terminal is a personal computer (PC), the mobile terminal is a data card, and the first module and the second module are built in the data card. Preferred embodiment. The preferred embodiment provides a control method based on the AT command, which satisfies the requirements for the connection operation of the hardware WIFI data card. In order to solve the above problem, the present invention proposes a control method based on an AT command, the core of which includes a set of AT command sets. The PC side software can operate the data card through the related new AT command. After the data card accepts the AT command, it executes according to the parameters given by the command, returns the execution result to the PC side software, and if the data card has a status after executing the AT command. The change, the initiative to report the corresponding AT command to the PC side software, PC side software and then according to the report results to decide what AT command to send next to control. The newly added AT commands include the current connection status reporting AT command, the WIFI hotspot scanning AT command, and the network connection AT command. First, when a data card is inserted into the computer, three COM port class devices and one NDIS NIC class device are enumerated. Among them, the COM port class device is the channel for AT command transmission. The NDIS network card device defaults to the non-connected state. When the wireless connection is successful, it is set to the connection state, which is the channel for data transmission between the data card and the computer. Reporting the AT command on the current connection status: When the COM port class device is available, the PC side software sends the status report to the data card to enable the AT command. After receiving the command, the data card will immediately report the current status. The first bit of the report indicates the network type, whether it is a 2G/3G network or a WIFI network, and the second bit indicates the status under the current network type. In the first step, if the data card is successfully initialized after being inserted into the computer, and the 2G/3G network or the WIFI network is ready and there is no abnormality, the report is successfully initialized. Otherwise, the escalation initialization fails and the network cannot be connected. In the second step, the data card automatically reports that the network is not connected, indicating that the PC side software can start to connect to the network. That is to say, after the data card is reported to be enabled by the PC-side software to enable the AT command, the normalization will be reported to the 2G/3G network connection type, the network is not connected, and the network will be reported. The initialization of the WIFI network connection type is successful and the network is not connected. In addition, other status reporting functions of the data card include: When the connection is being made, the reporting network is connected. After the connection is successful, the reporting network is connected. When the connection is disconnected, the reporting is disconnected. If the connection is canceled, the connection is canceled. Status, after the connection is disconnected, the network is not reported, and the connection can be initiated again. When the data card enters the state of scanning the AP hotspot, it will report that the AP status is being scanned. The purpose is to inform the PC side software. At this time, connecting the AT command or disconnecting the AT command may fail to respond and need to be delayed. When the scan ends, the status before the scan is re-reported. About the WIFI hotspot scanning AT command: The PC side software reports the WIFI network initialization on the data card and then enables the setting by the AT command. If the AT command in the setting contains the time parameter and the parameter value is not zero, the timer on the data card is enabled according to the parameter value. When the timer expires, the data card automatically scans the WIFI hotspot, and the ATINF actively reports the AT. command. The first two parameters of the reported AT command indicate the SSID and bSSID of the WIFI hotspot, which are used to distinguish the unique WIFI hotspot, and the third parameter indicates the current signal strength of the WIFI hotspot. If the time parameter included in the AT command is set to zero, the WIFI hotspot scan is performed immediately, and the scan result is reported automatically, and the report format is reported with the same timed scan. This mode is used when the PC side software needs to immediately obtain the current surrounding WIFI hotspot information. If the AT command also includes the SSID and bSSID parameters, the data card is instructed to obtain the current signal strength of the specified WIFI hotspot and provide the PC side software according to the values of the SSID and the bSSID. About the network connection class AT command: The network connection class AT command includes the network connection AT command, the cancel network connection AT command, and the disconnect network connection AT command. After the data card actively reports that the network is not connected, the PC side software can send the network connection AT command. The first parameter of the command is the connection network type, indicating whether the current connection operation is to connect to the 2G/3G network or the WIFI network. Because it is considered that if there is a connection process, there is a scene of canceling the connection. The meaning of the second parameter indicates whether the current action is to connect to the network or to disconnect the network for differentiation. The third and fourth parameters are valid when the connected network type is a WIFI network, and is used to specify a unique WIFI hotspot to be connected. The network connection class AT command also contains parameters to get the AT command and the parameter setting AT command when connecting. The parameter acquires the AT command with the SSID and bSSID parameters indicating the key information of the unique WIFI hotspot. After the data card executes the command, it returns the obtained hotspot information to the PC side software, including the authentication mode, encryption algorithm, network type and signal. Intensity, PC side software displays this information and can be modified. Before the connection to the WIFI hotspot AT command is sent, the AT command is required to set the authentication mode, encryption algorithm, authentication mode and key to the data card for connection. The parameter setting AT command and the connection WIFI hotspot AT command correspond to the SSID and bSSID parameters carried by both commands. After the data card actively reports that the network is connected, the PC-side software can issue the disconnection of the network connection AT command. The parameters of the command only need to specify the type of the network connection to be disconnected, or set to any type. Only one of the connections will take effect at the same time, that is, stay connected. After the 2G/3G network connection is successful, or after the WIFI connection is successful, the NDIS network card is placed in a connected state, and the IP is allocated through the DHCP server, so that the computer can perform data services through the data card. When the data service is no longer performed, the disconnection operation can be performed. At this time, the NDIS network card is placed in an unconnected state, and the data card enters an idle state without affecting the use of other network connections on the computer. By adopting the preferred embodiment, the problem that the PC side software with the hardware WIFI chip T+W data card is difficult to control is solved, and the unified AT command set is used to conveniently connect between the 2G/3G network and the WIFI network. And switching, simple and effective.

<Preferred embodiment of the preferred embodiment> FIG. 2 is a structural block diagram of a hardware WIFI-based data card software according to a preferred embodiment of the preferred embodiment. Referring to FIG. 2, the WLAN protocol is used under the cooperation of the SDIO driver. Control WIFI chip to connect WIFI hotspot; 2G/3G protocol 桟 support PDP activation function, used to control 2G/3G chip to connect to cellular network; NDIS protocol 桟 based on USB driver can enumerate NIC device after data card is inserted into computer, used to do A bridge for data interaction between computers and data cards. The AT command set, through the overall control of the above three, to achieve data card can be used in the 2G/3G network environment, can also be used in the WIFI network environment, and can be easily switched to use, enhanced data Applicability of card products. Here, the module for connecting the wireless network having the cellular type includes a 2G/3G protocol and a 2G/3G chip, and the module for connecting the wireless network having the WIFI type includes a WLAN protocol, an SDIO driver, and a WIFI card; The wireless network connection command is generated by the data transceiver and its control module under the control of the extended AT command module. After the extended AT command module receives the new AT command from the AT engine, the data transceiver and its control module are controlled based on the API interface. And in the case of receiving a new AT command indicating connection to the wireless network, the extended AT command module controls the data transceiver and its control module to generate a wireless network connection command. The application process of the newly added AT command in the preferred embodiment will be described in detail below with reference to FIG. 3 to FIG. 3: FIG. 3 is a flowchart of initializing the AT command. Referring to FIG. 3, the power-on initialization process and the timing scan reporting process include The following steps: After the AT port is available, the PC side software sends the following AT command to the data card: AT ^A TMODE=<n>

Value of <n>: 0 Cancel the report of ^A TMODE 1 Enable the report of ^A TMODE. The value of <n> in Figure 3 is 1, even if the status can be reported. After the enable is successful (that is, the data card sends ^A TMODE to the PC side software: 1 OK), the active reporting of the ^A TMODE state begins, and the meaning is as follows: ATMODE: <linkstatus>, <netstatus>

<linkstatus>: Connection type identifier: 1 WIFI 2

TD/EDGE

<netstatus>: Network type identifier:

0 initialization succeeded

1 initialization failed, can not connect

2 network is not connected

3 network is connecting

4 network is connected

5 is canceling the connection 6 is disconnecting

11 is scanning WIFI hotspot, when <1^^&^;8>=1

After the WIFI network is initialized successfully ^Λ TMODE: 1, 0 is reported, the PC side software can send the following AT command to the data card to control the reporting of the AINF and the frequency of reporting: AT ^A TAINF=<n>, [<time> , <ssid>, <bssid>] <n>: 0 Cancel the reporting of ^A TAINF 1 Enable the reporting of ^A TAINF <time>: Reporting interval, in seconds, size 0~65535 If 0, it will be reported immediately. When <η>=1, the <ssid>: WIFI network SSID <bssid>: The WIFI network bSSID command will report the WIFI hotspot information once, but it will be reported as a response. Thereafter, the WIFI hotspot information is actively reported according to the set time interval.

The WIFI hotspot information reporting format is:

^A TAINF: <ssid>, <bssid>, <rssi>

<ssid>: WIFI Network SSID

<bssid>: WIFI network bSSID <rssi>: WIFI network signal strength, unit dbm When the data card setting timeout expires, it will enter the WIFI hotspot scanning state, report ATMODE: l, ll, refer to Figure 7, after scanning Report the currently available WIFI hotspot information according to the above format. After scanning and reporting, it will report the status before entering the scanning state. If the WIFI network is not connected before entering, report it to ^A TMODE: l, 2; Before the WIFI network is connected, report ^A TMODE: l, 4 after completion. The network connection process, the process of canceling the network connection process and disconnecting the network connection includes the following steps: Figure 4 is a flow chart of connecting AT commands. Referring to Figure 4, when the status reporting network is not connected, including 2G/3G network is not connected to ^A TMODE: 2, 2 and WIFI network is not connected to ^A TMODE: l, 2, PC The side software can send the following command to the data card to connect the indication:

AT ^A TCO cis = <type>, <mode>[, <ssid>, <bssid>] <type>: Type of network to be connected: 1 WIFI 2 TD/EDGE

<mode>: indicates whether to connect to the network or cancel the network connection: 1 connection 0 cancel the network connection

<ssid>: WLAN network SSID, 3⁄4<type>=l is in effect

<bssid>: WLAN network bSSID, when <type>=l is effective Regardless of whether the 2G/3G network or the WIFI network is connected, the connection parameters need to be set before connecting. When connecting a 2G/3G network, you need to set the APN and set it using the standard AT command AT+CGDCONT. When connecting to a WIFI network, you need to set the authentication mode, encryption algorithm, authentication mode and key information. You can use the following AT commands to set:

AT ^A TTAPCFGS=<ssid>,<bssid>,<auth>,<encr>,<autype>

<ssid>: WLAN network SSID <bssid>: WLAN network bSSID <auth>: Authentication method Includes: 0 NONE 1 IEEE8021X 2 WPA_PSK 3 WPA_EAP 4 WPA2_PSK 5 WPA2_EAP

<encr>: Encryption algorithm Includes: 0 NONE 1 TKIP 2 CCMP 3 WEP_OPEN 4 WEP_SHARE 5 WEP104 6 YES

<autype>i iE mode Includes: 0 NONE 1 (U) SIM Certification 2 WEB Certification

<wepkey0>: WEP encryption key 1 or WPA/WPA2 authentication key 3⁄4<encr>= TKIP or <encr>=CCMP effective <wepkeyl>: WEP encryption key 2 <wepkey2>: WEP encryption key 3

<wepkey3>: WEP encryption key 4 <wepkeyindex>: WEP encryption key index 3⁄4<encr>= WEP- OPEN or <6 1">= ¹ \\3⁄4?_811 "The time is effective because of the action time of the network connection Longer, if the synchronous AT command is used, the PC side software will be blocked, causing other AT commands to be processed in a timely manner. Therefore, the network connection AT command execution result is reported in an asynchronous manner, and the response returned immediately after the command is sent to the data card will be There is a unique key-value label, as shown below:

<CR><LF> ^A TCO 顺:

<CR><LF>OK<CR><LF> where <id>: Asynchronous AT command processing number, used to indicate the result of active reporting, from 0 to 127 cycles. Then, the actual connection processing result will notify the PC side software through the active reporting of ^A TACK, and there is also a unique key value indication, so that the PC side software can judge the processing result of the request, and prevent the result from being wrong. The reporting format of ^A TACK is as follows:

^A TACK: <id>, <result>[,<err>] <id>: Asynchronous AT command processing number, used to indicate the result of active reporting: From 0 to 127 cycles, -11 indicates WIFI hotspot scan results

<result>: Asynchronous command processing result: 0 OK I ERROR

<err>: error code, reported when result !=0 FIG. 5 is a flowchart of canceling the connection AT command. Referring to FIG. 5, if the connection process is in progress, the connection can be canceled. The AT command is the same as the AT command used when the network is connected, but only one parameter needs to be changed, <mode> parameter. Figure 6 is a flow chart of disconnecting the AT command. Referring to Figure 6, when the status reporting network is connected, the 2G/3G network is connected to ^A TMODE: 2, 4 and the WIFI network is connected to ^A TMODE: l, 4 The PC side software can issue the following command to the data card to disconnect the operation:

AT ^A TDISCONN=<type>

<type>: Type of network to be disconnected: 0 ALL 1 WIFI 2 TD/EDGE This command is also an asynchronous execution command. During the execution, the status of the network being disconnected is reported. If ^TACK indicates that the disconnection command is successfully executed, the network is not connected. Otherwise, the disconnection fails and the network is still connected. The embodiment of the present invention further provides a control device, which is used in a mobile terminal, the device includes: a first receiving module, configured to receive a first AT command sent by a user terminal; and a determining module, configured to determine whether the first AT command indicates Connecting to the wireless network to obtain a first determination result; and generating a module, configured to generate a first wireless network connection instruction when the first determination result is yes. It can be seen that the mobile terminal performs an AT command interaction with the user terminal through an AT command transmission channel that has been established between the mobile terminal and the user terminal, and receives the first AT command sent by the user terminal, and indicates that the first AT command is connected to the wireless network. Generating a first wireless network connection command, thereby implementing high robustness control of the behavior of the mobile terminal controlling the connection to the wireless network; and this manner can be performed between the user terminal and the mobile terminal through the established AT command transmission channel The information exchange does not need to establish a PPPOE transmission channel, which reduces the consumption of a certain time resource due to the establishment of the PPPOE transmission channel and the occupation of a certain transmission resource and processing resource between the mobile terminal and the user terminal, and thus To a certain extent, efficient control of the behavior of the mobile terminal to control the connection to the wireless network is achieved. The wireless network may be a WIFI network, and the generating module may include: a first parsing unit, configured to parse the WIFI hotspot identification parameter from the first AT command when the first determining result is yes; The first generating unit is configured to generate a first wireless network connection command for indicating a connection to the WIFI hotspot; wherein the WIFI hotspot corresponds to the WIFI hotspot identification parameter. Furthermore, the mobile terminal may be provided with a first module for connecting a wireless network having a first network type and a second module for connecting a wireless network having a second network type, the generating module may include - a second analyzing unit, setting When the first judgment result is yes, the network type parameter is parsed from the first AT command; the second generating unit is configured to generate, when the network type parameter is the first network type, generate a first wireless network connection command of a network type wireless network; a third generating unit configured to: when the network type parameter is the second network type, generate a second network to control the second module to connect to the wireless network having the second network type A wireless network connection command. Preferably, the apparatus may further include: a first control module, configured to: before the receiving module receives the first AT command sent by the user terminal, control the first module to establish a wireless network with the first network type, under the control of the user terminal a first connection between the second sending module, configured to send, before receiving the first AT command sent by the user terminal, the third AT command carrying the connected state of the wireless network to the user terminal, when the first connection is established ??? enabling the user terminal to generate and send a fourth AT command indicating disconnection to the mobile terminal according to the third AT command; the second receiving module is configured to receive the fourth AT before receiving the first AT command sent by the user terminal The second control module is configured to: before the receiving module receives the first AT command sent by the user terminal, control the first module to disconnect the first connection according to the fourth AT command; the third sending module is configured to receive the user terminal and send the receiving Before the first AT command, when the first connection is disconnected, the user terminal is sent to carry the wireless The fifth AT command of the network unconnected state enables the user terminal to generate and transmit the first AT command to the mobile terminal according to the fifth AT command. Preferably, the first control module may include: a control unit, configured to receive a sixth AT command sent by the user terminal before the receiving module receives the first AT command sent by the user terminal; The determining unit is configured to: before the receiving module receives the first AT command sent by the user terminal, determine whether the sixth AT command indicates to connect to the wireless network, and obtain a second determination result; and the fourth generating unit is configured to receive, by the receiving module, the user terminal Before the first AT command, when the second determination result is YES, a second wireless network connection command is generated. The embodiment of the invention further provides a mobile terminal, which comprises the above control device. The above is only an embodiment of the present invention. It should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the embodiments of the present invention. Retouching should also be considered as the scope of protection of the embodiments of the present invention.

Claims

Claim

A control method for a mobile terminal, the mobile terminal performs an AT command interaction with a user terminal through an AT command transmission channel established between the mobile terminal and the user terminal, the method comprising: receiving a user terminal The first AT command sent;

Determining whether the first AT command indicates that the wireless network is connected to obtain a first determination result; when the first determination result is YES, generating a first wireless network connection instruction.

2. The method according to claim 1, wherein the wireless network is a WIFI network, and the generating the first wireless network connection instruction comprises:

Parsing the WIFI hotspot identification parameter from the first AT command;

And generating, by the first wireless network connection instruction, the WIFI hotspot, and the WIFI hotspot identification parameter.

The method according to claim 2, wherein before the receiving the first AT command sent by the user terminal, the method further includes:

Obtaining a scan result of a current WIFI network;

Transmitting, to the user terminal, a second AT command carrying the scan result, so that the user terminal can parse the scan result from the second AT command, generate and send the first to the mobile terminal according to the scan result AT command.

4. The method according to claim 1, wherein the mobile terminal is provided with a first module for connecting a wireless network having a first network type and a second module for connecting a wireless network having a second network type, Generating the first wireless network connection command includes:

Parsing a network type parameter from the first AT command;

And when the network type parameter is a first network type, generating the first wireless network connection instruction for controlling the first module to connect to a wireless network having a first network type;

And when the network type parameter is the second network type, generating the first wireless network connection instruction for controlling the second module to connect to the wireless network having the second network type.

The method according to claim 4, wherein, before the receiving the first AT command sent by the user terminal, the method further includes: Controlling, by the user terminal, the first module to establish a first connection with a wireless network having a first network type;

And transmitting, by the user terminal, a third AT command carrying the connected state of the wireless network, so that the user terminal can generate and send the fourth terminal indicating disconnection to the mobile terminal according to the third AT command. AT command;

Receiving the fourth AT command;

Controlling, by the fourth AT command, the first module to disconnect the first connection; when the first connection is disconnected, transmitting, to the user terminal, a fifth AT command carrying a wireless network unconnected state, so that the user The terminal is capable of generating and transmitting the first AT command to the mobile terminal according to the fifth AT command.

The method according to claim 5, wherein, under the control of the user terminal, controlling the first module to establish a first connection with a wireless network having a first network type comprises: receiving a user terminal to send The sixth AT command;

Determining whether the sixth AT command indicates that the wireless network is connected to obtain a second determination result; when the second determination result is YES, generating a second wireless network connection instruction.

The method according to any one of claims 4 to 6, wherein

The first network type is one of WIFI and a cell, and the second network type is one of WIFI and a cell other than the first network type.

8. A control device for a mobile terminal, the device comprising:

a first receiving module, configured to receive a first AT command sent by the user terminal;

The determining module is configured to determine whether the first AT command indicates to connect to the wireless network, and obtain a first determination result;

And generating a module, configured to generate a first wireless network connection instruction when the first determination result is YES.

The device according to claim 8, wherein the wireless network is a WIFI network, and the generating module includes: a first parsing unit, configured to: when the first determining result is yes, from the first The WIFI hotspot identification parameter is parsed in the AT command; The first generating unit is configured to generate the first wireless network connection instruction for indicating a connection to the WIFI hotspot; wherein the WIFI hotspot corresponds to the WIFI hotspot identification parameter.

10. The apparatus according to claim 8, wherein the mobile terminal is provided with a first module for connecting a wireless network having a first network type and a second module for connecting a wireless network having a second network type, The generating module includes: a second parsing unit, configured to parse the network type parameter from the first AT command when the first determining result is YES;

a second generating unit, configured to: when the network type parameter is the first network type, generate the first wireless network connection instruction for controlling the first module to connect to a wireless network having a first network type;

And a third generating unit, configured to: when the network type parameter is the second network type, generate the first wireless network connection instruction for controlling the second module to connect to the wireless network having the second network type.

The device according to claim 10, wherein the device further comprises:

a first control module, configured to control, before the receiving module receives the first AT command sent by the user terminal, under the control of the user terminal, to control the first module to establish a first relationship with the wireless network having the first network type Connection

a second sending module, configured to: before receiving the first AT command sent by the user terminal, the receiving module sends a third AT command carrying the connected state of the wireless network to the user terminal, so that the user is The terminal can generate and send a fourth AT command indicating disconnection to the mobile terminal according to the third AT command, and the second receiving module is configured to receive the first AT command sent by the user terminal before the receiving module receives the Fourth AT command;

a second control module, configured to control the first module to disconnect the first connection according to the fourth AT command, before the receiving module receives the first AT command sent by the user terminal;

a third sending module, configured to send, before the receiving module receives the first AT command sent by the user terminal, a fifth AT command carrying a wireless network unconnected state to the user terminal, when the first connection is disconnected, The user terminal is capable of generating and transmitting the first AT command to the mobile terminal according to the fifth AT command.

The device according to claim 11, wherein the first control module comprises: The control unit is configured to receive the sixth AT command sent by the user terminal before the receiving module receives the first AT command sent by the user terminal;

a determining unit, configured to determine, before the receiving module receives the first AT command sent by the user terminal, whether the sixth AT command indicates to connect to the wireless network, and obtain a second determination result; and the fourth generating unit is configured to receive the Before receiving the first AT command sent by the user terminal, the module generates a second wireless network connection command when the second determination result is YES.

A mobile terminal comprising the control device according to any one of claims 8 to 12.