CN101868048B - System for mobile phone - Google Patents

Abstract

The invention discloses a mobile phone system. The mobile phone is externally connected with a network communication module, which includes an AT communication port, a voice data transmission port, and a network data transmission port. The mobile phone system includes: a USB host module; an AT I /O module; a PCM I/O module, used to process data from the voice data transmission port of the network communication module, and perform data receiving, sending, and local buffering functions; an A/D module, used for regular reading The data from the PCM IO module is converted to D/A, and the microphone data is sampled regularly to perform A/D conversion; a TCP/IP protocol stack module; a Gateway/Http proxy module for realizing network selection; Browser module, as a local web browser. The invention adopts the method of externally connecting the network adapter on the mobile phone, and cooperates with the corresponding software in the mobile phone, so that the user can select the network of different standards and operators required by the user by replacing different network adapters on the same mobile phone.

Description

Phone system

technical field

The invention relates to a mobile phone system, in particular to a mobile phone system for selecting different standards and network operators.

Background technique

From the first generation of mobile phones in 1980 to the present, it has experienced the maturity of the second generation of GSM and is moving towards the third generation. Our traditional mobile phones are basically one mobile phone and one network, such as GSM network or CDMA network. To change the network, it is necessary to change the mobile phone. And dual-mode dual-standby (for example, GSM+TD-SCDMA) is only a transitional model developed by China Mobile as a dual-mode single-standby model, which has become history and is rarely used in practice. But now the maturity of the industry chain corresponding to each standard is not the same. Therefore, combining the applications of two or more industrial chains has become more and more obvious in practice. For example: WCDMA is now the most complete industry chain, has been operating abroad for many years, and its terminals are relatively stable, while TD-SCDMA is a latecomer, and its TD terminals are not mature enough. Faced with China Mobile's cheap tariffs, users will be in a dilemma when choosing to use TD mobile phones. Existing mobile phones cannot meet the requirements of users to freely replace different standard networks according to their respective needs while holding a mobile phone.

Contents of the invention

The technical problem to be solved by the present invention is to provide a mobile phone system for selecting different standards and network operators in order to overcome the defect that the network of a single mobile phone is single in the prior art, and the network of different standards needs to be replaced.

The present invention solves the above technical problems through the following technical solutions:

A mobile phone system, the mobile phone is externally connected to a network communication module, which includes an AT communication port, a voice data transmission port, and a network data transmission port, and is characterized in that the mobile phone system includes:

A USB host module, which is used to realize the host function of USB, and register the port function of the network communication module, and provide an interface for reading, writing and controlling;

An AT I/O module, which is responsible for processing data from the AT communication port of the network communication module, performing intermediate layer processing of AT commands, and providing functional interfaces to upper-layer applications;

A PCM I/O module, used to process data from the voice data transmission port of the network communication module, perform data reception, transmission, and local cache functions, and provide external interfaces for reading local cache data and sending data;

An A/D module is used to regularly read data from the PCM IO module, perform D/A conversion, regularly sample microphone data, and perform A/D conversion;

A TCP/IP protocol stack module;

A Gateway/Http proxy module for realizing network selection;

A Browser module, as a local web browser.

Among them, the upper application includes:

An AT call module, used to realize the user interface and the AT call dialing function, through this interface, the user knows that the voice call is established through the network communication module, and can input the phone number, answer, dial, and hang up through the interface;

An AT dial module, which is used to realize the user dial interface and the corresponding dial function. Through this interface, the user dials the network access of the network communication module, displays the network status of the module, the dial process, and the dial result. After the dial is successful, the Traffic statistics and hang up functions;

A spare module is used to reserve module space to facilitate the addition of upper-layer applications.

Wherein, the TCP/IP protocol stack module adopts the inherent TCP/IP protocol stack module of the mobile phone platform, or transplants the framework of the TCP/IP protocol stack.

Wherein, the external connection mode of the mobile phone and the network communication module is a USB interface, a UART interface, an SPI interface, an RJ45 interface, a PCI interface, or a PCMCIA interface.

Wherein, the network communication module is a wireless network communication module or a wired network adapter.

The positive and progressive effect of the present invention is: the present invention adopts the method of connecting the network adapter on the mobile phone, cooperates with the corresponding software in the mobile phone, so that the user can select different standards and operators required by the user by replacing different network adapters on the same mobile phone. network of.

Description of drawings

FIG. 1 is a schematic diagram of a mobile phone system software system architecture according to an embodiment of the present invention.

Fig. 2 is a call flowchart of the mobile phone system dialing through the module device in the present invention.

Fig. 3 is a flow chart of calling the mobile phone system to access the Internet through the module device in the present invention.

Detailed ways

The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

As shown in FIG. 1 , it describes in detail a system architecture in which the mobile phone system in the present invention is applied to a modem network adapter using a USB data channel. The mobile phone system of the present invention comprises: a USB host module (USB host module), is used for realizing USB host function, and registers the function of three ports of modem network adapter USB composite device, provides USB to read, write or interface such as control externally; An AT I/O module (AT input/output module), which is responsible for processing the data coming from the AT (Attention) communication port on the modem network adapter, and carrying out the middle layer processing of AT commands (AttentionCommands, a kind of modem command language), Including the encapsulation and sending of AT commands and the processing of information returned by module AT commands, etc., providing functional interfaces to upper-layer applications to facilitate upper-layer use; an AT call module (AT call module), used to implement user interface and specific AT call dialing related Function, through this interface, the user knows that the voice call is established through the network adapter, and can input the phone number through the interface, answer, dial, hang up the phone and other functions; an AT dial module (AT dial module), used to realize the user Dialing interface and the corresponding dialing function, through this interface, the user can dial the network access of the network adapter, display the network status of the network adapter, the dialing process, the dialing result, the traffic statistics and hang up after the dialing is successful; A spare module, as a spare upper application module, is used to realize the functions that other users want to realize, such as the sending and receiving of SMS and MMS; a PCM I/O module (Pulse Code Modulation: pulse code modulation input/output module), used It is responsible for processing the data (PCM format) from the USB voice data transmission port, performing functions such as data reception, transmission and local buffering, providing external interfaces for reading local buffered data and sending data, and various exception handling functions; The A/D module, after the voice call is connected, regularly reads the data from the PCM I/O, performs D/A conversion and outputs it, regularly samples the microphone data, and after the A/D conversion, calls the PCM I/O interface for sending; an output module, which includes various sound output devices, such as built-in speakers of mobile phones or external speakers of mobile phones, etc.; an input module, which includes various sound input devices, such as built-in microphones of mobile phones or external headsets of mobile phones, etc. 1. TCP/IP protocol stack module, which can use the inherent mobile phone platform, but the general mobile platform TCP/IP protocol stack bottom layer interface is not open to mobile phone design manufacturers, so the framework of transplanting TCP/IP protocol stack can also be adopted; 1. Gateway/ Http proxy module (gateway/hypertext transfer protocol proxy module), choose whether to use the network of the mobile phone itself or the network of the network adapter at this layer; and a browser module, used for mobile phone local Internet browsing.

Fig. 2 is a flow chart of the telephone function of the mobile phone system in the present invention applied to the network adapter using the USB interface as the data channel. In this process, in step 1001, the user inputs the phone number to be dialed, and performs voice dialing; in step 1002, the upper layer program calls the AT encapsulation layer interface; in step 1003, the encapsulation layer interface maps functions to AT commands, and sends AT commands to the USB host module; step 1004, using the AT channel of the USB interface to send an order to the network adapter; step 1005, the processing performed after the USB host module receives the AT command.

If the connection is successful, step 1006 is performed, and the network adapter sends a successful message; step 1007, the AT I/O module in the mobile phone system receives the message that the connection is successful; step 1008, the function of opening the A/D module to send and receive PCM voice data regularly. In step 1009, the network adapter also opens the channel for regularly sending and receiving PCM voice data; in step 1010, after the USB host module in the mobile phone system receives the data from the PCM channel of the network adapter, it executes step 1011, and transmits the PCM voice data sent by the network adapter. The data is forwarded to the PCM I/O module in the mobile phone system for local receiving and buffering of data; step 1012 regularly reads the PCM data of local buffering, and performs D/A conversion; step 1013, the loudspeaker device of the mobile phone realizes the output of sound, and here Users can already hear the voice of the other party speaking. Step 1014, the microphone device converts the voice of the user into an analog signal; step 1015, regularly performs A/D conversion on the voice analog signal; step 1016, calls the interface for sending PCM data to send data; step 1010, the USB host module receives the PCM After the data, the data is sent to the network adapter through the PCM data channel of the network adapter. The network adapter receives the PCM data, and after step 1009 and other voice data processing, sends out the module to complete the voice data transmission function.

If the connection fails, in step 1018, the network adapter sends a connection failure message to the mobile phone, and the mobile phone executes step 1019 and after receiving the failed message, executes step 1020 to process the connection failure and display the call result on the interface.

Fig. 3 is a flow chart of the mobile phone system in the present invention applied to the Internet access function of the network adapter using the USB interface as the data channel. In this process, in step 2001, the user opens the network dialing function in the mobile phone; in step 2002, the upper layer program calls the AT encapsulation layer interface; in step 2003, the encapsulation layer interface performs the mapping from the function to the AT command, and sends the AT command to the USB host module; Step 2004, use the AT channel of USB interface, send order to network adapter; Step 2005, the processing that network adapter carries out after receiving AT order, if connect successfully, execute step 2006, send the message of success by network adapter to mobile phone; Step 2007, The AT I/O module in the mobile phone system receives the message of successful connection, and executes step 2008, and the gateway selects to connect to the network through the USB network adapter, and now the network has been successfully connected. The user interface starts to display the message that the connection is successful, and performs traffic statistics. Step 2009, the user opens the browser, and inputs the network address that wants to visit, and step 2010, after the browser receives the input address, and processes it; Step 2011, arbitrates the link direction, uses the network adapter link; Step 2012, TCP/ The IP protocol stack performs data encapsulation or unpacking operations; Step 2013, using the USB network data channel to send and receive data; Step 2014, the network adapter performs corresponding network data sending and receiving processing. In this way, users can successfully access the network.

If the connection fails, in step 2015, the network adapter sends a connection failure message to the mobile phone, and the mobile phone system executes step 2016 after receiving the failed message; executes step 1017, performs connection failure processing, and displays the connection result on the interface.

The network communication module that is used to cooperate with the present invention is not limited to the modem network adapter in the above-mentioned embodiment, the user also can adopt GSM, EDGE (Enhanced Data Rate for GSM Evolution: enhanced data rate GSM evolution technology), CDMA2000, WCDMA, Or traditional wireless network communication modules such as TD-SCDMA. Simultaneously, among the present invention, mobile phone and this wireless network communication module establish any kind of connection mode of data interaction, can be the USB interface that adopts in the above-mentioned embodiment, also can make UART (Universal Asynchronous Receiver/Transmitter: Universal Asynchronous Transmitter), SPI (Service Provider Interface: serial peripheral device interface), RJ45 (also known as crystal head, is standardized by IEC (60) 603-7, using 8-position modular jacks or plugs defined by international connector standards ), PCI (Peripheral Component Interconnect: Peripheral Component Interconnect Standard) or PCMCIA and other interfaces provided by any network access device.

Although the specific implementations of the present invention have been described above, those skilled in the art should understand that these are only examples, and various changes or modifications can be made to these implementations without departing from the principle and essence of the present invention. Revise. Accordingly, the protection scope of the present invention is defined by the appended claims.

Claims (4)

1. A mobile phone system, the mobile phone is externally connected to a network communication module, which includes an AT communication port, a voice data transmission port, and a network data transmission port, it is characterized in that the mobile phone system includes: A USB host module, which is used to realize the host function of USB, and register the port function of the network communication module, and provide an interface for reading, writing and controlling; An AT I/O module, which is responsible for processing data from the AT communication port of the network communication module, performing intermediate layer processing of AT commands, and providing functional interfaces to upper-layer applications; A PCM I/O module, used to process data from the voice data transmission port of the network communication module, perform data reception, transmission, and local cache functions, and provide external interfaces for reading local cache data and sending data; An A/D module is used to regularly read data from the PCM IO module, perform D/A conversion, regularly sample microphone data, and perform A/D conversion; A TCP/IP protocol stack module; A Gateway/Http proxy module for realizing network selection; and A Browser module, as a local web browser; The Browser module receives and processes the input address, the Gateway/Http proxy module arbitrates the link direction, and the TCP/IP protocol stack module performs data encapsulation or unpacking operation and sends and receives data through the network data transmission port. 2. The mobile phone system according to claim 1, wherein the upper layer application comprises: An AT call module, used to realize the user interface and the AT call dialing function, through this interface, the user knows that the voice call is established through the network communication module, and can input the phone number, answer, dial, and hang up through the interface; An AT dial module, which is used to realize the user dial interface and the corresponding dial function. Through this interface, the user dials the network access of the network communication module, displays the network status of the module, the dial process, and the dial result. After the dial is successful, the Traffic statistics and hang-up functions; and A spare module is used to reserve module space to facilitate the addition of upper-layer applications. 3. mobile phone system according to claim 1, is characterized in that, this TCP/IP protocol stack module adopts the inherent TCP/IP protocol stack module of mobile phone platform, or the framework of transplanting TCP/IP protocol stack. 4. mobile phone system according to claim 1, is characterized in that, the external connection mode of this mobile phone and this network communication module is USB interface, UART interface, SPI interface, RJ45 interface, PCI interface or PCMCIA interface.