WO2011026297A1 - 一种实现无线g3模拟传真业务的装置、发送及接收方法 - Google Patents

一种实现无线g3模拟传真业务的装置、发送及接收方法 Download PDF

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Publication number
WO2011026297A1
WO2011026297A1 PCT/CN2009/076192 CN2009076192W WO2011026297A1 WO 2011026297 A1 WO2011026297 A1 WO 2011026297A1 CN 2009076192 W CN2009076192 W CN 2009076192W WO 2011026297 A1 WO2011026297 A1 WO 2011026297A1
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Prior art keywords
fax
module
analog
data
local
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PCT/CN2009/076192
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English (en)
French (fr)
Inventor
孙庚茂
连荣刚
贺菲菲
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中兴通讯股份有限公司
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Publication of WO2011026297A1 publication Critical patent/WO2011026297A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095Systems or arrangements for the transmission of the picture signal
    • H04N1/00103Systems or arrangements for the transmission of the picture signal specially adapted for radio transmission, e.g. via satellites
    • H04N1/00106Systems or arrangements for the transmission of the picture signal specially adapted for radio transmission, e.g. via satellites using land mobile radio networks, e.g. mobile telephone
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00281Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
    • H04N1/00307Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal with a mobile telephone apparatus

Definitions

  • the present invention relates to the field of wireless facsimile technologies, and in particular, to a device, a transmitting method, and a receiving method for implementing a wireless third class (G3, Group 3) analog facsimile service in a wireless network environment.
  • G3, Group 3 a wireless third class
  • Fax communication is a communication means for transmitting static graphic information. It transmits static information such as text, graphics, photos, and handwriting from one place to another through wired or wireless communication lines, and can be recorded to the receiving end. On the fax machine, the same copy as the original is obtained, which has the advantages of a variety of information to be transmitted, a fast information transmission speed, and a single operation.
  • G3 analog fax machine is a communication device that uses digital signal processing technology. After the image signal is digitally compressed internally, it is converted into an analog signal through a modem, and then input into the PSTN switch through a common telephone line.
  • the fax call setup phase This phase is similar to the process of establishing a telephone call, except that a fax tone containing the identity transmitting/receiving terminal is sent.
  • the message transmission phase The fax message is transmitted according to the T.4 procedure, and the message transmission control is performed.
  • the message transmission control includes: message synchronization, error detection and error correction, and line monitoring.
  • CDMA Code-Division Multiple Access
  • the technical problem to be solved by the present invention is to provide a device, a transmitting method and a receiving method for implementing a wireless G3 analog facsimile service, which overcomes the shortcomings of the prior art that the wireless G3 analog facsimile service cannot be implemented on the wireless terminal.
  • the technical solution adopted by the present invention is:
  • the present invention provides a device for implementing a wireless G3 analog fax service, the device comprising: a universal interface module, a main processing module, a fax MODEM module, a user interface circuit module, and a storage module;
  • a universal interface module configured to provide a universal interface for data interaction between the main processing module and the wireless terminal;
  • the main processing module is configured to control and manage the fax MODEM module, the user interface circuit module and the storage module, perform data interaction with the wireless terminal through the universal interface module, and establish fax data with the remote receiver or sender through the wireless terminal.
  • the fax MODEM module is configured to parse and convert the fax data to be received and sent by the local G3 analog fax machine, and obtain the current fax status through the parsed keywords
  • the user interface circuit module is configured to transmit the fax call signal, and Establish a fax data channel between the fax MODEM module and the local G3 analog fax machine.
  • the device further includes: a storage module, configured to store fax data to be received and sent by the local G3 analog fax machine.
  • the device further comprises a telephone interface module for providing an interface for the fax MODEM module and the user interface circuit module to be connected to the local G3 analog fax machine.
  • the main processing module specifically includes: a main control sub-module, an interaction sub-module with a fax MODEM, an interaction sub-module with a wireless terminal, a fax data parsing sub-module, and a fax data management sub-module;
  • the main control submodule is configured to perform overall scheduling control on the fax MODEM interaction submodule, the wireless terminal interaction submodule, the fax data parsing submodule, and the fax data management submodule;
  • the interaction module with the wireless terminal is configured to establish, by the wireless terminal, a fax data channel between the remote receiver or the sender;
  • the interaction module with the fax MODEM is configured to initialize the fax MODEM module, and control the fax MODEM module to process the fax data to be received and sent by the local G3 analog fax machine;
  • the fax data analysis sub-module is configured to control the fax MODEM module to parse the fax data to be received and sent by the local G3 analog fax machine, and obtain the current fax status by using the parsed keyword;
  • the fax data management sub-module is configured to access, in the storage module, fax data to be received and sent by the local G3 analog fax machine.
  • the fax MODEM module is further used for a local G3 analog fax machine
  • digital-to-analog conversion is performed on the fax data to be received by the local G3 analog fax machine, and the fax data to be sent by the local G3 analog fax machine is subjected to analog-to-digital conversion.
  • the user interface circuit module is further configured to transmit a fax call signal including transmitting a fax to the telecommunications, fax dialing information, and a fax tone signal.
  • the storage module is further configured to cache fax data to be received and sent by the G3 analog fax machine.
  • the device further includes a power management module, configured to obtain, by the universal interface module, a stable power supply from the wireless terminal to the main processing module, the fax MODEM module, the user interface circuit module, and the storage The module is powered.
  • a power management module configured to obtain, by the universal interface module, a stable power supply from the wireless terminal to the main processing module, the fax MODEM module, the user interface circuit module, and the storage The module is powered.
  • the present invention also provides a method for transmitting a wireless G3 analog fax service, the sending method comprising:
  • the local G3 analog fax machine makes a fax call to the remote receiver, and sends the fax call signal to the main processing module through the user interface circuit module;
  • the fax MODEM module receives the fax data from the local G3 analog fax machine, and then stores it into the storage module after data conversion and parsing. At the same time, the main processing module sends the fax data in the storage module to the remote receiver through the wireless terminal.
  • the sending method further includes:
  • the fax MODEM module When the fax MODEM module receives the fax data from the local G3 analog fax machine, disconnect the fax data channel between the local G3 analog fax machine and the fax MODEM module; when the main processing module receives the fax data in the storage module to the remote end When the party completes the transmission, the fax data channel between the main processing module and the remote receiver is disconnected, and the transmission of the fax data is ended.
  • the present invention also provides a receiving method for implementing a wireless G3 analog fax service, the receiving method Includes:
  • the main processing module receives the fax call signal sent by the remote sender through the wireless terminal, and sends the fax call signal to the local G3 analog fax machine through the user interface circuit module;
  • the main processing module receives the fax data from the remote sender through the wireless terminal, and transmits the fax data.
  • the MODEM module After the MODEM module is parsed, it is stored in the storage module. At the same time, the fax data in the storage module is converted by the fax MODEM module and sent to the local G3 analog fax machine.
  • the receiving method further includes:
  • the main processing module When the main processing module receives the fax data from the remote sender, the fax data channel between the main processing module and the remote sender is disconnected; when the fax MODEM module converts the fax data in the storage module to the local data When the G3 analog fax machine finishes transmitting, disconnect the fax data channel between the local G3 analog fax machine and the fax MODEM module to end the reception of the fax data.
  • the present invention has at least the following advantages:
  • the device, the transmitting method and the receiving method of the present invention separate the G3 analog fax service from the specific platform of the wireless terminal by shielding the specific implementation details of the complicated and cumbersome G3 analog fax service, and the device provides a universal interface module.
  • the wireless terminal that only supports digital fax of personal computer (PC, Personal Computer) and does not support G3 analog fax can realize G3 analog fax service by connecting with the device through the universal interface module.
  • the device is used as an accessory of an ordinary wireless fixed terminal, which brings great convenience to the terminal manufacturer and the end user: On the one hand, there is no special requirement for the platform of the wireless terminal itself, and the programming can be greatly shortened.
  • the development cycle of the wireless terminal manufacturer's G3 fax function for wireless products provides a more user-friendly choice for the user.
  • the user purchases the terminal if the G3 fax function is required, just select the accessory, and it is fine. Therefore, the user can flexibly customize the G3 analog transmission.
  • a true-function wireless terminal, and the technical threshold is low.
  • the universal interface module serves as a data exchange interface for providing a data channel between the device and the wireless terminal.
  • the power supply is directly obtained from the wireless terminal through the universal interface module, thereby eliminating external power, which reduces The cost is convenient for the user.
  • FIG. 1 is a schematic diagram of an application scenario of a device according to a first embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a device according to a first embodiment of the present invention.
  • FIG. 3 is a schematic diagram showing the composition of a software module in the main processing module of FIG. 2 of the present invention.
  • FIG. 4 is a schematic flowchart of an implementation process of a sending method according to a second embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an implementation process of a receiving method according to a third embodiment of the present invention. detailed description
  • a first embodiment of the present invention is a device for implementing a wireless G3 analog facsimile service in a wireless network environment such as CDMA, and is connected to a wireless terminal and a local G3 analog facsimile machine, and the CDMA wireless network where the wireless terminal is located
  • the PSTN network can communicate, and the remote G3 analog fax machine is connected to the PSTN network via the telephone line via the Rjll interface.
  • the apparatus for implementing a wireless G3 analog fax service includes: a main processing module, a fax MODEM module, a universal interface module, a telephone interface module, a user interface circuit module, a power management module, and a storage module.
  • the fax MODEM module is connected to the main processing module through a Universal Asynchronous Receiver/Transmitter (URAT).
  • UART is a parallel.
  • the input is a serial output chip, usually integrated on the main processing chip where the main processing module is located.
  • Most URATs use the 16550AFN chip.
  • the main processing module uses parallel data internally, the data cannot be sent directly to the fax MODEM module. It must be UART-organized for asynchronous transmission.
  • the process is as follows: The main processing module first puts the data to be written to the serial device into the UART register. Then, it is transmitted to the serial device fax MODEM module through the first input first out queue (FIFO), which is a common technical means for connecting the modem and the CPU main processor in the field, so it is not detailed here.
  • FIFO first input first out queue
  • the fax MODEM module is mainly responsible for analog-to-digital conversion of fax data: On the one hand, the analog signal from the G3 analog fax machine is converted into a digital signal that can be transmitted by a wireless network such as CDMA; on the other hand, the ⁇ fc wireless terminal is received from a wireless network such as CDMA. The resulting digital signal is converted to an analog signal recognizable by the G3 analog fax machine.
  • the wireless terminal can be a CDMA fixed station, a mobile station, a mobile phone, or the like.
  • the device for implementing the wireless G3 analog facsimile service of the present invention needs to perform data on the facsimile signal through the facsimile MODEM module when receiving or transmitting the facsimile signal. Conversion.
  • the main processing module parses the fax data to be received and sent by the local G3 analog fax machine, and obtains the current fax status through the parsed keywords.
  • the universal interface module can be selected as a standard USB interface. Because of its versatility, it can be used as a data exchange interface. It can use D+ and D- two differential data lines to provide a reliable data channel between the main processing module and the wireless terminal.
  • the VCC pin of the standard USB interface is used to obtain a stable power source from the wireless terminal as an input of the power management module, and the power management module supplies power to the main processing module, the fax MODEM module, the user interface circuit module, and the storage module.
  • the telephone interface module can be directly connected to a device (DAA, Direct Access Arrangement). Its function is to provide an external RJ11 line interface to the G3 analog fax machine, to connect to the fax MODEM module, and to provide overcurrent detection.
  • DAA Direct Access Arrangement
  • the device for implementing the wireless G3 analog fax service in the embodiment uses a DC blocking capacitor to connect the telephone interface module and the fax MODEM module to prevent a large current transmission generated when the G3 analog fax machine is accessed.
  • the damage of the true MODEM module acts as an overcurrent protection measure.
  • the user interface circuit module uses a subscriber line interface circuit (SLIC, Subscriber Line Interface Circuit) chip, and the four-wire port of the SLIC chip is connected to the main processing module through a PCM (Pulse Code Modulation) bus, and the PCM bus can provide from 2M.
  • the digital data line service to the 155M rate can also provide other services such as voice, image transmission, and distance learning. It is especially suitable for situations where the data transmission rate is high and bandwidth is required.
  • a fax call signal such as a fax incoming call information, a fax dialing information, and a fax tone signal
  • the user interface circuit module transmits the G3 analog fax machine by using the voice transmission function of the PCM bus. Dial tone when dialing, incoming tone from the far-end sender, and fax tone signal.
  • the user interface circuit module has a built-in telephone interface module, and the external RJ11 line interface is connected with the G3 analog fax machine.
  • the local G3 analog fax machine is connected to the RJ11 line interface through the telephone line, that is, the A/B line.
  • the user interface circuit module is also used to establish a logical fax data channel between the fax MODEM module and the local G3 analog fax machine.
  • the storage module can use FLASH flash memory to store the fax data in the flash memory medium, so that the fax service can be implemented through the store-and-forward method.
  • the RAM data buffer in the FLASH flash memory the interaction speed between the device for implementing the wireless G3 analog fax service and the G3 analog fax machine and the CDMA wireless terminal in the embodiment can be accelerated, and the delay of the CDMA circuit type data service can be solved.
  • the storage module is connected to the main processing module through a serial peripheral interface (SPI interface, Serial Peripheral interface).
  • the device further includes a power management module for stably obtaining the required power from the wireless terminal through the VCC pin on the standard USB interface. Then provide the required voltage to the main processing module, the fax MODEM module, the user interface circuit module, the FLASH flash module, and the like, The external power supply is eliminated, which reduces the cost and is convenient for the user.
  • the main processing module runs on the main processing chip, and is mainly responsible for the management of each of the above modules, and coordinates the operation of the entire system, so it is the dispatching center of each part of the entire device.
  • the software sub-module included in the main processing module includes: a main control sub-module, an interaction sub-module with a fax MODEM, an interaction sub-module with a wireless terminal, a fax data parsing sub-module, and a fax data management sub-module.
  • the interaction with the wireless terminal sub-module which is equivalent to the role of a Data Terminal Equipment (DTE), interacts with the wireless communication device (DCE, Data Communication Equipment), and the software interface between the two follows the standard attention ( AT, Attention) command, in accordance with the PC fax standard interface in the fax process, the sub-module is responsible for establishing a fax data channel between the remote receiver or the sender through the wireless terminal;
  • DTE Data Terminal Equipment
  • DCE Data Communication Equipment
  • the sub-module is mainly responsible for initializing the fax MODEM module, and controlling the fax MODEM module to process the fax data to be received and sent by the local G3 analog fax machine, and the processed content includes data conversion;
  • the fax data parsing sub-module is used to control the fax MODEM module to parse the fax data to be received and sent by the local G3 analog fax machine, and obtain the current fax status through the parsed keywords, such as whether there is a next page or the like;
  • the fax data management sub-module is used to store, read, and delete fax data to be received and sent by the local G3 analog fax machine in the storage module.
  • the main control sub-module is configured to perform overall scheduling on the above-mentioned fax MODEM interaction sub-module, the radio terminal interaction sub-module, the fax data parsing sub-module, and the fax data management sub-module.
  • a second embodiment of the present invention is described below by taking a fax process as an example.
  • the cooperation process and operation flow of each module in the device for implementing the wireless G3 analog fax service according to the present invention are as follows:
  • Step 401 The local G3 analog fax machine dials, performs a fax sending operation, and sends the fax dialing information to the main processing module through the user interface circuit module.
  • Step 402 The main control sub-module in the main processing module receives the fax dialing information, confirms that the fax is to be sent, and notifies the fax MODEM interaction sub-module to initialize the fax MODEM module.
  • Step 403 Establish a fax data channel between the local G3 analog fax machine and the fax MODEM module, and then establish a fax data channel with the remote receiver through the interaction module with the wireless terminal, and the process of establishing the fax data channel is message interaction.
  • the process when the fax and tone signals of the local and remote G3 analog fax machines are mutually transmitted, the above fax data channels are sequentially established.
  • Step 404 The fax MODEM interaction sub-module receives the fax data from the local G3 analog fax machine, and performs analog-to-digital conversion processing by the fax MODEM module.
  • Step 405 The fax data parsing sub-module parses the fax data, and obtains the current fax status by using the parsed key word.
  • Step 406 The fax data management sub-module caches the fax data to the storage module, and simultaneously transmits the fax data in the storage module to the remote receiver through the wireless terminal by the wireless terminal interaction sub-module.
  • Step 407 After the fax data is received, the fax data channel between the fax chip and the fax machine is disconnected through a software sub-module that interacts with the fax chip.
  • Step 408 After the fax data is sent, disconnect the fax data channel with the remote receiver by interacting with the wireless fixed terminal software sub-module.
  • Step 409 The entire fax transmission process ends.
  • the third embodiment of the present invention takes the receiving fax process as an example, and describes in detail the cooperation process and operation flow of each module in the device for implementing the wireless G3 analog fax service in the process of receiving a fax. .
  • the steps to complete a fax reception process are as follows:
  • Step 501 The sub-module interacting with the wireless terminal receives the fax incoming call information of the remote sender, and sends the fax incoming call information to the local G3 analog fax machine through the user interface circuit module.
  • Step 502 Establish a fax data channel between the local G3 analog fax machine and the fax MODEM module by establishing a fax data channel with the remote sender by the wireless terminal interaction sub-module, and establishing a fax data channel is a message interaction.
  • the above fax data channels are sequentially established.
  • Step 503 After the fax data channel between the remote sender and the remote sender is successfully established, the wireless terminal interaction submodule receives the fax data from the remote sender.
  • Step 504 The fax data parsing sub-module causes the fax data to be parsed by the fax MODEM module, and obtains the current fax status from the parsed keywords.
  • Step 505 The fax data management software sub-module caches the parsed and processed fax data to the storage module, and simultaneously exchanges the fax data in the storage module with the fax MODEM module through the fax MODEM module, and then sends the fax data to the local G3 analog fax machine. .
  • Step 506 After the fax data is received, the AT command is sent by the interaction module with the wireless terminal, and the wireless terminal is told to disconnect the fax data channel with the remote sender.
  • Step 507 After the fax data is sent, disconnect the fax data channel between the fax MODEM module and the G3 analog fax machine by using the fax MODEM interaction sub-module.
  • Step 508 The entire fax receiving process ends.
  • the method and device for transmitting and receiving a wireless G3 analog fax service separates the G3 analog fax service from the specific platform of the wireless terminal by shielding the specific implementation details of the complicated and cumbersome G3 analog fax service, and
  • the device provides a universal interface module externally, so that A wireless terminal that only supports PC digital fax and does not support G3 analog fax, can also implement G3 analog fax service by connecting to the device through a universal interface module.
  • the device is used as an accessory of an ordinary wireless fixed terminal, which brings great convenience to the terminal manufacturer and the end user: On the one hand, there is no special requirement for the platform of the wireless terminal itself, and the programming can be greatly shortened.
  • the development cycle of the wireless terminal manufacturer's G3 fax function for wireless products provides a more user-friendly choice for the user.
  • the G3 fax function is required, just select the accessory, and it is fine. Therefore, the wireless terminal with the G3 analog fax function can be flexibly customized for the user, and the technical threshold is low.
  • the universal interface module serves as a data exchange interface for providing a data channel between the device and the wireless terminal.
  • the power supply is directly obtained from the wireless terminal through the universal interface module, thereby eliminating external power, which reduces The cost is convenient for the user.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Facsimiles In General (AREA)

Abstract

本发明公开了一种实现无线G3模拟传真业务的装置、发送方法及接收方法,其中,该装置包括:通用接口模块、主处理模块、传真MODEM模块、用户接口模块和存储模块,采用传真MODEM模块对本地G3模拟传真机要接收和发出的传真数据进行数据转换,该装置对外提供通用接口模块与无线终端相连,从而实现G3模拟传真业务。采用本发明的技术方案,一方面,对无线终端本身的平台没有特别要求,可以大大缩短无线终端厂商对无线产品G3传真功能的开发周期; 另一方面, 可为用户灵活定制出具有G3模拟传真功能的无线终端,且实现起来技术门槛较低。

Description

一种实现无线 G3模拟传真业务的装置、 发送及接收方法 技术领域
本发明涉及无线传真技术领域, 尤其涉及一种在无线网络环境下实现 无线第三类 (G3, Group 3 )模拟传真业务的装置、 发送方法及接收方法。 背景技术
传真通讯是一种传输静态图文信息的通信手段, 它是通过有线或无线 通信线路, 把诸如文字、 图形、 照片、 手迹等静态信息从一个地方传输到 另一个地方, 并可记录到接收端的传真机上, 从而得到与原稿一样的复制 品, 具有传输的信息种类多、 信息传输速度快、 操作筒单等优点。
传统的传真机通过传统公共电话交换网络 (PSTN , Public Switched Telephone Network )发送和接收传真。 目前在传真通信中使用较多的传真 终端是第三类传真机, 即 G3模拟传真机。 G3模拟传真机是一种采用数字 信号处理技术的通信设备, 图像信号在内部经过数字化处理压缩后, 通过 调制解调器变成模拟信号, 然后通过普通电话线输入到 PSTN交换机内。
一次实时传真的过程可分为以下 5个阶段:
1、 传真呼叫建立阶段。 这一阶段与电话呼叫建立的过程相似, 不同之 处在于要发送包含标识发送 /接收终端的传真单音。
2、 报文传输前过程阶段。 主要进行传真能力的协商与训练。
3、报文传输阶段。 按照 T.4规程传输传真报文, 并进行报文传输控制。 其中, 报文传输控制包括: 报文同步、 误码检测和纠错、 以及线路监测。
4、 报文传输后过程阶段。 主要提供报文的证实、 报文结束、 多页续发 等控制操作。
5、 传真呼叫释放过程。 结束传真呼叫。 在移动通讯高度发展的今天, 无线终端上的语音、 短信业务已经比较 成熟。 G3模拟传真业务作为传递纸张信息的重要手段, 应用范围很广, 在 一些偏远的或者具有险要的地形的大面积区域, 由于不便铺设传统的公用 电话交换网的线路, 如果可以借助无线终端通过无线网络的传输方式进行 数据的接收和发送, 将给这些区域的 G3传真业务的应用带来极大的方便, 但由于 G3模拟传真业务本身实现比较复杂, 设计、 调试难度很大, 若将该 业务功能集成到无线终端产品上, 在技术实现上是一个瓶颈。 例如, 高通 公司( QUALCOMM )的码分多址( CDMA, Code-Division Multiple Access ) 系列套片及配套软件中, 基本全部提供了语音、 短信、 数据等功能, 惟独 都没提供 G3模拟传真业务功能。 这就使得许多无线终端制造厂商, 不得不 在无线终端上放弃 G3模拟传真业务的实现。 因此, 现在亟待解决的问题是 如何不依赖 CDMA系列套片及配套软件, 为无线终端制造厂商和用户提供 一种技术门槛较低的在无线网络中实现 G3模拟传真业务的解决方法。 发明内容
本发明要解决的技术问题是,提供一种实现无线 G3模拟传真业务的装 置、 发送方法及接收方法, 克服现有技术中不能在无线终端上实现无线 G3 模拟传真业务的缺陷。
本发明采用的技术方案是:本发明提供一种实现无线 G3模拟传真业务 的装置, 该装置包括: 通用接口模块、 主处理模块、 传真 MODEM模块、 用户接口电路模块和存储模块; 其中,
通用接口模块, 用于提供主处理模块与无线终端进行数据交互的通用 接口;
主处理模块, 用于对传真 MODEM模块、 用户接口电路模块和存储模 块进行控制管理, 通过通用接口模块与无线终端进行数据交互, 通过无线 终端建立与远端接收方或发送方之间的传真数据通道; 传真 MODEM模块, 用于对本地 G3模拟传真机要接收和发出的传真 数据进行解析和数据转换, 通过解析出的关键字获取当前的传真状态; 用户接口电路模块, 用于传输传真呼叫信号, 并在传真 MODEM模块 与本地 G3模拟传真机之间建立传真数据通道。
其中, 该装置进一步包括: 存储模块, 用于存储本地 G3模拟传真机要 接收和发出的传真数据。
其中, 该装置进一步包括电话接口模块, 用于为传真 MODEM模块和 用户接口电路模块提供与本地 G3模拟传真机相连接的接口。
从软件功能考虑, 所述主处理模块具体包括: 主控子模块、 与传真 MODEM 交互子模块、 与无线终端交互子模块、 传真数据解析子模块和传 真数据管理子模块; 其中,
所述主控子模块, 用于对所述与传真 MODEM交互子模块、 所述与无 线终端交互子模块、 所述传真数据解析子模块和所述传真数据管理子模块 进行整体调度的控制管理;
所述与无线终端交互子模块, 用于通过无线终端建立与远端接收方或 发送方之间的传真数据通道;
所述与传真 MODEM交互子模块, 用于对传真 MODEM模块初始化, 并控制传真 MODEM模块处理本地 G3模拟传真机要接收和发出的传真数 据;
所述传真数据解析子模块, 用于控制传真 MODEM模块对本地 G3模 拟传真机要接收和发出的传真数据进行解析, 通过解析出的关键字获取当 前的传真状态;
所述传真数据管理子模块,用于在存储模块中对本地 G3模拟传真机要 接收和发出的传真数据进行存取。
其中, 所述传真 MODEM模块, 进一步用于对本地 G3模拟传真机要 接收和发出的传真数据进行数据转换时,对本地 G3模拟传真机要接收的传 真数据进行数模转换,对本地 G3模拟传真机要发出的传真数据进行模数转 换。
其中, 所述用户接口电路模块, 进一步用于传输包括传输传真来电信 息、 传真拨号信息和传真单音信号在内的传真呼叫信号。
其中, 所述存储模块, 进一步用于緩存 G3模拟传真机要接收和发出的 传真数据。
其中, 该装置进一步包括电源管理模块, 用于通过所述通用接口模块 从无线终端处获取稳定的电源提供给所述主处理模块、 所述传真 MODEM 模块、 所述用户接口电路模块和所述存储模块供电。
本发明还提供一种实现无线 G3模拟传真业务的发送方法,该发送方法 包括:
本地 G3模拟传真机向远端接收方进行传真呼叫,通过用户接口电路模 块将传真呼叫信号发送给主处理模块;
建立本地 G3模拟传真机与传真 MODEM模块之间的传真数据通道; 建立主处理模块与远端接收方之间的传真数据通道;
传真 MODEM模块接收来自本地 G3模拟传真机的传真数据, 经过数 据转换和解析处理后存放到存储模块, 同时主处理模块将存储模块中的传 真数据通过无线终端发送给远端接收方。
其中, 该发送方法进一步包括:
当传真 MODEM模块对来自本地 G3模拟传真机的传真数据接收完毕 时, 断开本地 G3模拟传真机与传真 MODEM模块之间的传真数据通道; 当主处理模块将存储模块中的传真数据向远端接收方发送完毕时, 断开主 处理模块与远端接收方之间的传真数据通道, 结束传真数据的发送。
本发明还提供一种实现无线 G3模拟传真业务的接收方法,该接收方法 包括:
主处理模块通过无线终端收到远端发送方发来的传真呼叫信号, 通过 用户接口电路模块将传真呼叫信号发送给本地 G3模拟传真机;
建立主处理模块与远端发送方之间的传真数据通道;建立本地 G3模拟 传真机与传真 MODEM模块之间的传真数据通道;
主处理模块通过无线终端接收来自远端发送方的传真数据, 经过传真
MODEM模块的解析处理后存放到存储模块中, 同时将存储模块中的传真 数据经过传真 MODEM模块进行数据转换后发送给本地 G3模拟传真机。
其中, 该接收方法进一步包括:
当主处理模块对来自远端发送方的传真数据接收完毕时, 断开主处理 模块与远端发送方之间的传真数据通道; 当传真 MODEM模块将存储模块 中的传真数据进行数据转换后向本地 G3模拟传真机发送完毕时,断开本地 G3模拟传真机与传真 MODEM模块之间的传真数据通道,结束传真数据的 接收。
采用上述技术方案, 本发明至少具有下列优点:
本发明的装置、发送方法及接收方法, 由于屏蔽掉 G3模拟传真业务复 杂而烦瑣的具体实现细节,把 G3模拟传真业务与无线终端的具体平台分离 开,并且该装置对外提供通用接口模块,使得仅支持个人电脑(PC, Personal Computer )数字传真, 而不支持 G3模拟传真的无线终端, 只要通过通用接 口模块与该装置连接,也可实现 G3模拟传真业务。采用本发明的技术方案, 将该装置作为普通无线固定终端的一个配件, 这对终端厂商和最终用户都 会带来很大的便利: 一方面, 对无线终端本身的平台没有特别要求, 可以 大大缩短无线终端厂商对无线产品 G3传真功能的开发周期; 另一方面, 对 用户来说, 提供了更加人性化的选择, 用户购买终端时, 如需要 G3传真功 能, 只要选择该配件, 就可以了, 因而可为用户灵活定制出具有 G3模拟传 真功能的无线终端, 且实现起来技术门槛较低。
另外, 通用接口模块一方面作为数据交换接口, 为该装置和无线终端 之间提供数据通道, 另一方面, 直接通过通用接口模块从无线终端处获取 供电电源, 省去了外接电源, 这既降低了成本, 又方便用户使用。 附图说明
图 1为本发明第一实施例装置的应用场景示意图;
图 2为本发明第一实施例装置的架构示意图;
图 3为本发明图 2的主处理模块中软件模块的组成示意图;
图 4为本发明第二实施例发送方法的实现流程示意图;
图 5为本发明第三实施例接收方法的实现流程示意图。 具体实施方式
下结合附图及较佳实施例,对本发明提出的所述实现无线 G3模拟传真业务 的发送和接收方法及装置, 详细说明如下。
第一实施例:
本发明第一实施例, 如图 1所示, 在 CDMA等无线网络环境下, 实现 无线 G3模拟传真业务的装置, 与无线终端和本地 G3模拟传真机相连接, 无线终端所在的 CDMA无线网络与 PSTN网络可以实现通信, 远端的 G3 模拟传真机通过电话线经 Rjll接口连接到 PSTN网络中。
如图 2所示,所述实现无线 G3模拟传真业务的装置包括:主处理模块、 传真 MODEM模块、 通用接口模块、 电话接口模块、 用户接口电路模块、 电源管理模块和存储模块。
传真 MODEM模块, 通过通用异步接收 /发送装置(URAT, Universal Asynchronous Receiver/ Transmitter )与主处理模块相连, UART是一个并行 输入成为串行输出的芯片, 通常集成在主处理模块所在的主处理芯片上, 多数 URAT是采用 16550AFN芯片。 因为主处理模块内部采用并行数据, 不能直接把数据发到传真 MODEM模块, 必须经过 UART整理才能进行异 步传输, 其过程为: 主处理模块先把准备写入串行设备的数据放到 UART 的寄存器中, 再通过先入先出队列 ( FIFO , First Input First Output, )传送 到串行设备传真 MODEM模块上, 此处是本领域中连接调制解调器和 CPU 主处理器的常用技术手段, 故此处不详述。 传真 MODEM模块主要负责传 真数据的模数转换: 一方面, 把来自 G3 模拟传真机的模拟信号转换成 CDMA等无线网络可以传递的数字信号; 另一方面, ^fc无线终端从 CDMA 等无线网络收到的数字信号转换成 G3模拟传真机可识别的模拟信号。无线 终端可以是 CDMA固定台、 车载台、 手机等。 由于 G3模拟传真机发送、 接收的信号是经过调制的模拟信号, 所以, 本发明所述实现无线 G3模拟传 真业务的装置在接收或者发送传真信号时, 需要先通过传真 MODEM模块 对传真信号进行数据转换。 另外, 主处理模块对本地 G3模拟传真机要接收 和发出的传真数据进行解析, 通过解析出的关键字获取当前的传真状态。
通用接口模块, 可以选用标准 USB接口, 因为其通用性强, 一方面可 作为数据交换接口, 利用 D+和 D-两条差分数据线, 为主处理模块和无线终 端之间提供可靠的数据通道; 另一方面, 利用标准 USB接口的 VCC管脚 从无线终端获取稳定的电源作为电源管理模块的输入, 由电源管理模块为 主处理模块、 传真 MODEM模块、 用户接口电路模块和存储模块供电。
电话接口模块, 可以采用电话设备直接访问装置(DAA, Direct Access Arrangement ), 其作用是对外提供 RJ11线路接口与 G3模拟传真机相连, 对内与传真 MODEM模块连接, 并且还提供过流检测功能。 可选的, 本实 施例所述实现无线 G3模拟传真业务的装置中采用隔直电容连接电话接口 模块与传真 MODEM模块, 防止 G3模拟传真机接入时产生的大电流对传 真 MODEM模块的损坏, 作为一种过流保护措施。
用户接口电路模块采用用户线接口电路( SLIC, Subscriber Line Interface Circuit ) 芯片, SLIC 芯片的四线端口通过脉码调制 (PCM , Pulse Code Modulation )总线与主处理模块相连, PCM总线既可以提供从 2M到 155M 速率的数字数据专线业务, 也可以提供话音、 图像传送、 远程教学等其他 业务, 特别适用于对数据传输速率要求较高, 需要更高带宽的情况。 在本 发明中, 当用户接口电路模块用于传输传真呼叫信号, 比如传输传真来电 信息、 传真拨号信息和传真单音信号时, 用户接口电路模块利用 PCM总线 的话音传送功能, 传送 G3模拟传真机拨号时的拨号音、 来自远端发送方的 来电音以及传真单音信号。
同时, 用户接口电路模块其内置有电话接口模块, 对外提供 RJ11线路 接口与 G3模拟传真机相连,本地 G3模拟传真机是通过电话线即 A/B线接 入 RJ11线路接口的。 另外, 当 G3模拟传真业务需要建立时, 用户接口电 路模块还用于建立传真 MODEM模块和本地 G3模拟传真机之间逻辑上的 传真数据通道。
存储模块, 可以采用 FLASH闪存, 把传真数据固定存储在 FLASH闪 存的介质中, 这样就可以通过存储转发方式实现传真业务。 另外, 利用 FLASH闪存中的 RAM数据緩沖, 可以加快本实施例所述实现无线 G3模 拟传真业务的装置与 G3模拟传真机以及 CDMA无线终端的交互速度, 可 解决 CDMA电路型数据业务时延造成的传真数据传输不稳定的问题。 存储 模块与主处理模块之间通过串行***设备接口 (SPI接口, Serial Peripheral interface )相连。
可选的, 该装置还包括电源管理模块, 用于通过标准 USB 接口上的 VCC管脚从无线终端上可稳定的获取所需电源。 然后给主处理模块、 传真 MODEM模块、 用户接口电路模块、 FLASH闪存模块等提供所需的电压, 省去了外接电源, 这既降低了成本, 又方便用户使用。
主处理模块运行在主处理芯片上, 主要负责对上述各个模块的管理, 协调整个***的运作, 因此它是整个装置各部分的调度中心。 如图 3所示, 所述主处理模块包括的软件子模块有: 主控子模块、 与传真 MODEM交互 子模块、 与无线终端交互子模块、 传真数据解析子模块和传真数据管理子 模块,
与无线终端交互子模块,相当于一个数据终端设备( DTE, Data Terminal Equipment ) 的角 色与无线终端这个数据通信设备 ( DCE , Data Communication Equipment )进行交互, 二者之间的软件接口遵循标准注意 ( AT, Attention )命令, 在传真流程上遵循 PC传真标准接口, 该子模块负 责通过无线终端建立与远端接收方或发送方之间的传真数据通道;
与传真 MODEM交互子模块,相当于一个 DTE的角色与传真 MODEM 模块这个 DCE进行交互, 二者之间的软件接口遵循标准 AT命令, 在传真 流程上遵循 T.30、 T.31标准。 该子模块主要负责对传真 MODEM模块初始 化, 并控制传真 MODEM模块处理本地 G3模拟传真机要接收和发出的传 真数据, 处理的内容包括数据转换;
传真数据解析子模块, 用于控制传真 MODEM模块对本地 G3模拟传 真机要接收和发出的传真数据进行解析, 通过解析出的关键字获取当前的 传真状态, 比如是否还有下一页等;
传真数据管理子模块,用于在存储模块中对本地 G3模拟传真机要接收 和发出的传真数据进行存储、 读取及删除等操作。
主控子模块, 用于对上述与传真 MODEM交互子模块、 与无线终端交 互子模块、 传真数据解析子模块和传真数据管理子模块进行整体调度。
第二实施例:
本发明第二实施例, 如图 4所示, 下边以发传真过程为例, 详细描述 在发传真过程中,本发明所述实现无线 G3模拟传真业务的装置中各个模块 的协作过程及操作流程。 一次完整的发送传真过程的步骤如下:
步骤 401 : 本地 G3模拟传真机拨号, 进行发送传真操作, 通过用户接 口电路模块将传真拨号信息发送给主处理模块。
步骤 402: 主处理模块中的主控子模块收到传真拨号信息, 确认要发送 传真后, 通知与传真 MODEM交互子模块, 进行传真 MODEM模块的初始 化。
步骤 403:建立本地 G3模拟传真机与传真 MODEM模块之间的传真数 据通道, 然后通过与无线终端交互子模块建立与远端接收方之间的传真数 据通道, 建立传真数据通道的过程就是消息交互的过程, 当本端和远端 G3 模拟传真机的传真单音信号均互相发送完毕后, 上述传真数据通道便依次 建立了。
步骤 404:与传真 MODEM交互子模块接收来自本地 G3模拟传真机的 传真数据, 并通过传真 MODEM模块进行模数转换处理。
步骤 405: 传真数据解析子模块对传真数据进行解析, 通过解析出的关 键字获取当前的传真状态。
步骤 406: 传真数据管理子模块将传真数据緩存到存储模块, 同时与无 线终端交互子模块将存储模块中的传真数据通过无线终端发送给远端接收 方。
步骤 407: 传真数据接收完毕后, 通过与传真芯片交互的软件子模块断 开传真芯片与传真机之间的传真数据通道。
步骤 408: 传真数据发送完毕后, 通过与无线固定终端交互软件子模块 断开与远端接收方之间的传真数据通道。
步骤 409: 整个传真发送过程结束。
第三实施例: 本发明第三实施例, 如图 5所示, 下边以接收传真过程为例, 详细描 述在接收传真过程中,本发明所述实现无线 G3模拟传真业务的装置中各个 模块的协作过程及操作流程。 一次完整的接收传真过程的步骤如下:
步骤 501 : 与无线终端交互子模块收到远端发送方的传真来电信息, 通 过用户接口电路模块将传真来电信息发送给本地 G3模拟传真机。
步骤 502:通过与无线终端交互子模块建立与远端发送方之间的传真数 据通道, 然后建立本地 G3模拟传真机与传真 MODEM模块之间的传真数 据通道, 建立传真数据通道的过程就是消息交互的过程, 当本端和远端 G3 模拟传真机的传真单音信号均互相发送完毕后, 上述传真数据通道便依次 建立了。
步骤 503: 与远端发送方之间的传真数据通道建立成功后, 与无线终端 交互子模块接收来自远端发送方的传真数据。
步骤 504: 传真数据解析子模块使传真数据经传真 MODEM模块进行 解析, 从解析出的关键字中获取当前的传真状态。
步骤 505:传真数据管理软件子模块将解析处理后传真数据緩存到存储 模块, 同时与传真 MODEM交互子模块将存储模块中的传真数据通过传真 MODEM模块进行数模转换后发送给本地 G3模拟传真机。
步骤 506: 传真数据接收完毕后, 通过与无线终端交互子模块发送 AT 命令, 告诉无线终端断开与远端发送方之间的传真数据通道。
步骤 507: 传真数据发送完毕后, 通过与传真 MODEM交互子模块断 开传真 MODEM模块与 G3模拟传真机之间的传真数据通道。
步骤 508: 整个传真接收过程结束。
本发明所述实现无线 G3模拟传真业务的发送和接收方法及装置,由于 屏蔽掉 G3模拟传真业务复杂而烦瑣的具体实现细节, 把 G3模拟传真业务 与无线终端的具体平台分离开, 并且该装置对外提供通用接口模块, 使得 仅支持 PC数字传真而不支持 G3模拟传真的无线终端, 只要通过通用接口 模块与该装置连接, 也可实现 G3模拟传真业务。 采用本发明的技术方案, 将该装置作为普通无线固定终端的一个配件, 这对终端厂商和最终用户都 会带来很大的便利: 一方面, 对无线终端本身的平台没有特别要求, 可以 大大缩短无线终端厂商对无线产品 G3传真功能的开发周期; 另一方面, 对 用户来说, 提供了更加人性化的选择, 用户购买终端时, 如需要 G3传真功 能, 只要选择该配件, 就可以了, 因而可为用户灵活定制出具有 G3模拟传 真功能的无线终端, 且实现起来技术门槛较低。
另外, 通用接口模块一方面作为数据交换接口, 为该装置和无线终端 之间提供数据通道, 另一方面, 直接通过通用接口模块从无线终端处获取 供电电源, 省去了外接电源, 这既降低了成本, 又方便用户使用。
通过具体实施方式的说明, 应当可对本发明为达成预定目的所采取的 技术手段及功效得以更加深入且具体的了解, 然而所附图示仅是提供参考 与说明之用, 并非用来对本发明加以限制。

Claims

权利要求书
1、 一种实现无线 G3模拟传真业务的装置, 其特征在于, 该装置包括: 通用接口模块、 主处理模块、 传真 MODEM模块、 用户接口电路模块和存 储模块; 其中,
通用接口模块, 用于提供主处理模块与无线终端进行数据交互的通用 接口;
主处理模块, 用于对传真 MODEM模块、 用户接口电路模块和存储模 块进行控制管理, 通过通用接口模块与无线终端进行数据交互, 通过无线 终端建立与远端接收方或发送方之间的传真数据通道;
传真 MODEM模块, 用于对本地第三类( G3 )模拟传真机要接收和发 出的传真数据进行解析和数据转换, 通过解析出的关键字获取当前的传真 状态;
用户接口电路模块, 用于传输传真呼叫信号, 并在传真 MODEM模块 与本地 G3模拟传真机之间建立传真数据通道。
2、 根据权利要求 1所述的装置, 其特征在于, 该装置进一步包括: 存 储模块, 用于存储本地 G3模拟传真机要接收和发出的传真数据。
3、 根据权利要求 2所述的装置, 其特征在于, 该装置进一步包括电话 接口模块, 用于为传真 MODEM模块和用户接口电路模块提供与本地 G3 模拟传真机相连接的接口。
4、 根据权利要求 2所述的装置, 其特征在于, 所述主处理模块具体包 括: 主控子模块、 与传真 MODEM交互子模块、 与无线终端交互子模块、 传真数据解析子模块和传真数据管理子模块; 其中,
所述主控子模块, 用于对所述与传真 MODEM交互子模块、 所述与无 线终端交互子模块、 所述传真数据解析子模块和所述传真数据管理子模块 进行整体调度的控制管理; 所述与无线终端交互子模块, 用于通过无线终端建立与远端接收方或 发送方之间的传真数据通道;
所述与传真 MODEM交互子模块, 用于对传真 MODEM模块初始化, 并控制传真 MODEM模块处理本地 G3模拟传真机要接收和发出的传真数 据;
所述传真数据解析子模块, 用于控制传真 MODEM模块对本地 G3模 拟传真机要接收和发出的传真数据进行解析, 通过解析出的关键字获取当 前的传真状态;
所述传真数据管理子模块,用于在存储模块中对本地 G3模拟传真机要 接收和发出的传真数据进行存取。
5、根据权利要求 2所述的装置,其特征在于,所述传真 MODEM模块, 进一步用于对本地 G3模拟传真机要接收和发出的传真数据进行数据转换 时, 对本地 G3模拟传真机要接收的传真数据进行数模转换, 对本地 G3模 拟传真机要发出的传真数据进行模数转换。
6、根据权利要求 2所述的装置, 其特征在于,所述用户接口电路模块, 进一步用于传输包括传输传真来电信息、 传真拨号信息和传真单音信号在 内的传真呼叫信号。
7、 根据权利要求 2所述的装置, 其特征在于, 所述存储模块, 进一步 用于緩存 G3模拟传真机要接收和发出的传真数据。
8、 根据权利要求 1至 7任一项所述的装置, 其特征在于, 该装置进一 步包括电源管理模块, 用于通过所述通用接口模块从无线终端处获取稳定 的电源提供给所述主处理模块、 所述传真 MODEM模块、 所述用户接口电 路模块和所述存储模块供电。
9、 一种实现无线 G3模拟传真业务的发送方法, 其特征在于, 该发送 方法包括: 本地 G3模拟传真机向远端接收方进行传真呼叫,通过用户接口电路模 块将传真呼叫信号发送给主处理模块;
建立本地 G3模拟传真机与传真 MODEM模块之间的传真数据通道; 建立主处理模块与远端接收方之间的传真数据通道;
传真 MODEM模块接收来自本地 G3模拟传真机的传真数据, 经过数 据转换和解析处理后存放到存储模块, 主处理模块将存储模块中的传真数 据通过无线终端发送给远端接收方。
10、 根据权利要求 9所述的发送方法, 其特征在于, 该发送方法进一 步包括:
当传真 MODEM模块对来自本地 G3模拟传真机的传真数据接收完毕 时, 断开本地 G3模拟传真机与传真 MODEM模块之间的传真数据通道; 当主处理模块将存储模块中的传真数据向远端接收方发送完毕时, 断开主 处理模块与远端接收方之间的传真数据通道, 结束传真数据的发送。
11、 一种实现无线 G3模拟传真业务的接收方法, 其特征在于, 该接收 方法包括:
主处理模块通过无线终端收到远端发送方发来的传真呼叫信号, 通过 用户接口电路模块将传真呼叫信号发送给本地 G3模拟传真机;
建立主处理模块与远端发送方之间的传真数据通道;建立本地 G3模拟 传真机与传真 MODEM模块之间的传真数据通道;
主处理模块通过无线终端接收来自远端发送方的传真数据, 经过传真 MODEM模块的解析处理后存放到存储模块中, 将存储模块中的传真数据 经过传真 MODEM模块进行数据转换后发送给本地 G3模拟传真机。
12、 根据权利要求 11所述的接收方法, 其特征在于, 该接收方法进一 步包括:
当主处理模块对来自远端发送方的传真数据接收完毕时, 断开主处理 模块与远端发送方之间的传真数据通道; 当传真 MODEM模块将存储模块 中的传真数据进行数据转换后向本地 G3模拟传真机发送完毕时,断开本地 G3模拟传真机与传真 MODEM模块之间的传真数据通道,结束传真数据的 接收。
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