KR0155328B1 - Terminal adapter equipment for data service on cdma and driving method for the same - Google Patents

Abstract

The present invention relates to a mobile station terminal adapter device and a method for driving the same, which are in charge of an interface between a mobile subscriber and a mobile terminal for supporting asynchronous data communication and fax service, which are wireless data services in a CDMA mobile communication system. A mobile station terminal adapter for service, comprising: a storage means for downloading a driver, a matching means for matching a data terminal and a mobile terminal, and a central control means for controlling the matching means, Another aspect of the present invention is a method of driving a mobile terminal adapter device for a CDMA data service, comprising: a first process in which a mobile terminal subscriber runs software on a data terminal; and the mobile terminal terminal adapter device emulates a modem to obtain corresponding modem configuration parameters. remind A second step of storing the result in the mobile station terminal adapter device and passing the result code to the data terminal; and when the call with the base station is connected, the modem commands stored by the mobile station terminal adapter device are transmitted to the IWF in the mobile switching center through the mobile terminal. A third process of driving a modem, and the mobile station terminal device moving according to packets defined in the mobile station terminal adapter device and the mobile terminal using a serial input / output interface of the mobile terminal and a driven data task for interfacing with the mobile terminal; A fourth process of sending and receiving a corresponding packet by a call processing procedure of the terminal; and when the data terminal requests wireless data service from the mobile terminal or responds to a mistake, the mobile station terminal device requests the corresponding mobile service option from the mobile terminal. Service with base station The fifth step of activating the service option to be carried out according to the option negotiation and once the connection with the opposite terminal or the host computer is completed, the mobile station adapter device passes the data from the data terminal and the mobile terminal to the opposite mobile terminal and the data terminal. Since the present invention includes a sixth process, the present invention provides a general CDMA mobile telephone subscriber that does not use a dedicated data terminal to load asynchronous communication and fax services on a personal computer using commercial software in an existing environment. By reducing the cost and the flexibility of function expansion, the cost of purchasing a dedicated data terminal can be reduced, and an external device can be used to reduce the load of the mobile terminal as the additional service is continuously expanded.

Description

Mobile terminal adapter device for CDMA data service and its driving method

1 is a system block diagram to which the present invention can be applied.

2 is a block diagram of a mobile terminal adapter device for CDMA data services in accordance with the present invention.

3 is a flow chart of the drive software of a mobile terminal adapter device for CDMA data services according to the present invention.

* Explanation of symbols for main parts of the drawings

TA: Invention Terminal Adapter Device MT2: Mobile Terminal

TE2: data terminal TA_INIT_S: TA initial state

TA_ORIG_S: TA Call Request Status TA_TERM-S: TA Call Response Status

TA_ONLINE_S: TA data transmission / reception status

TA_RELEASE_S: TA Transfer Status

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal adapter device for a CDMA data service and a driving method thereof, and more particularly, to an interface between a mobile subscriber and a mobile terminal for supporting asynchronous data communication and fax service, which are wireless data services in a CDMA mobile communication method. The present invention relates to a mobile terminal adapter device and a driving method thereof.

In general, when CDMA mobile communication service is started, mobile subscribers will want to receive general voice service such as text or picture, figure, DB search, etc. as well as voice service.

Therefore, many system configurations and implementation methods have been studied. When the CDMA mobile phone business is used, there is a problem that a general CDMA mobile phone subscriber who does not use a dedicated data terminal cannot receive a wireless service.

An object of the present invention for solving the above problems is to access a mobile terminal using a commercial communication emulator or a personal terminal equipped with a fax software of a mobile terminal subscriber, receive a desired service in a wireless environment, and transfer the call after completing the service. The present invention provides a mobile station terminal adapter device for driving a CDMA data service and a driving method thereof.

A feature of the present invention for achieving the above object is a mobile station terminal adapter apparatus for a CDMA data service, comprising: storage means capable of downloading a driver, matching means for matching a data terminal and a mobile terminal, and the matching means. Including a central control means for controlling the.

Another aspect of the present invention for achieving the above object is a method of driving a mobile station terminal adapter device for a CDMA data service, comprising: a first process for a mobile terminal subscriber to run software on a data terminal; Emulating and storing the corresponding modem configuration parameters in the mobile station terminal adapter device and passing the result code to the data terminal; and when the call with the base station is connected, the modem commands stored by the mobile station terminal adapter device are stored. A third step of transmitting a modem to the IWF in the mobile switch and driving the modem; and using the serial input / output interface of the mobile terminal and a data task driven by the mobile terminal adapter device to interface with the mobile terminal. A fourth process of exchanging a corresponding packet by a call processing procedure of the mobile terminal according to the packet defined in the adapter device and the mobile terminal, and when the data terminal requests a wireless data service from the mobile terminal or responds to an error, The fifth step of enabling the terminal device to request a corresponding service option from the mobile terminal to activate a service option to be performed according to the service option negotiation with the base station, and once the connection with the other terminal or the host computer is completed, the mobile station adapter device connects to the data terminal. And a sixth process of passing data from the mobile terminal to the opposite mobile terminal and the data terminal.

According to the present invention, when a CDMA mobile terminal subscriber wants to receive the same service on a wireless network without changing the service environment supported by a conventional wired personal computer such as a laptop or a notebook, not a dedicated data terminal for wireless data service, It is possible to connect such a general data terminal to a mobile terminal which is a mobile service medium by fixing a small adapter that is easy to move.

Hereinafter, one of the preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a system block diagram to which the present invention can be applied.

A system to which the present invention can be applied with reference to FIG. 1 will now be described. In the figure, the service counterparts through the base station and the PSTN network are already fixed, and Mobile I and Mobile II constitute a mobile station in which the present invention is included.

The actual modem for data service in the CDMA mobile communication exists in the Inter Working Function (IWF) in the mobile switching center of the base station. At this time, the base station cannot have all the modem configuration information for all mobile subscribers. The management of the information is held by the mobile terminal.

This is possible by storing the modem configuration information by the initial command from the data terminal until the mobile terminal is connected to the base station and receiving the modem configuration information of the mobile subscriber that the IWF wants to service, and sending the result code to the data terminal. Become.

Therefore, the mobile subscriber can only obtain a real modem to support the service by requesting or responding to the call using the mobile terminal.

In addition, the wireless channel is a protocol for retransmission, flow control, and error control for a wireless data service requiring a BER on a wireless communication channel, which is relatively lower than a voice service because of noise and fading on the channel. Is required.

However, if the function for the service and the service option for the additional service are added in the process of developing the CDMA mobile communication service, the load of the mobile terminal is getting too high. In principle, the minimum modification is made according to the service option. It makes sense to allow external processing.

In addition, the purpose of the present invention is to support this without affecting both terminals by adding the protocol stack or expanding the service such as SMS in the adapter device.

In the conventional analog mobile communication service method, the cellular modem is installed in the data terminal hardware connected to the mobile terminal to attempt service, so the modem configuration differs from the digital mobile communication service method in the base station. In the TDMA mobile communication service in the foreign country, the mobile station and the base station communicate with each other by using a modem.

2 is a block diagram of a mobile terminal adapter device for CDMA data services according to the present invention.

Referring to FIG. 2, a mobile terminal adapter device for a CDMA data service according to the present invention will be described.

The configuration of the device shown in Fig. 2 is equipped with a general-purpose 8250 and Z85C30 chipset equipped with a general-purpose 80186 CPU and a memory for downloading a driver, and for interfacing both terminals (data terminal and mobile station terminal). It is implemented as a small adapter with an RS-232-C communication port.

Two communication ports on both ends of the adapter are used for both terminals, and the other two communication ports are mounted as spare ports for mobile terminal monitoring and function addition.

The top of the adapter is equipped with LEDs to indicate the pin operation of each port, and LEDs to indicate data for asynchronous communication, fax for fax communication, and SMS for SMS under consideration, depending on the type of service currently being serviced. By installing it, you can see the status of service.

3 is a flowchart of the driving software of a mobile terminal adapter device for CDMA data service according to the present invention.

Referring to FIG. 3, the driving process of the driving software of the mobile station terminal adapter device for the CDMA data service according to the present invention will be described. When the mobile subscriber runs software on the data terminal, the device emulates the modem, stores the corresponding modem configuration parameters in the adapter device, and passes the result code to the data terminal. When the call with the base station is connected, the adapter device transmits the stored modem commands to the IWF in the mobile switching center through the mobile terminal to drive the modem. The service is operated by the modem thus driven.

Meanwhile, the adapter device uses a serial input / output (SIO) interface of the mobile terminal and a data task driven to interface with the mobile terminal, and according to the packet defined in the adapter device and the mobile terminal, Send and receive the corresponding packet. When the data terminal requests a wireless data service from the mobile terminal or attempts to respond to an error, the device requests the mobile terminal to provide a corresponding service option to activate a service option to be carried out in accordance with the service option negotiation with the base station. Once the connection with the other terminal or the host computer is completed, the device is responsible for transferring data from the data terminal and the mobile terminal to the other terminal and the data terminal.

Therefore, the present invention as described above reduces the load on both terminals and expands the functions when a general CDMA mobile telephone subscriber who does not use a dedicated data terminal wants to receive an asynchronous communication fax service using commercial software of an existing environment on a personal computer. By providing flexibility, it is possible to reduce the cost of purchasing a dedicated data terminal and to reduce the load of the mobile terminal as the additional service is continuously expanded by using an external device.

Claims (8)

A mobile station terminal adapter apparatus for CDMA data service, comprising: storage means for downloading a drive driver; Matching means for matching a data terminal with a mobile station terminal; And central control means for controlling the matching means. A mobile station terminal adapter device according to claim 1, wherein said central control means is a universal 80186 CPU. A mobile station terminal adapter device according to claim 1, wherein said matching means is a small adapter having a universal 8250 and Z85C30 chipset and an RS-232-C communication port so as to match said data terminal and said mobile station terminal. . 2. The apparatus of claim 1, wherein two communication ports at both ends of the adapter device are used for both terminals; And the remaining two communication ports are redundant ports according to mobile terminal monitoring and function addition. 2. A mobile station terminal adapter device according to claim 1, wherein the adapter top plate further comprises display means for displaying the pin operation of each port. 6. The method according to claim 5, wherein the display means indicates that the asynchronous communication is asynchronous communication in accordance with the type of service currently being serviced; Fax communication according to the type of service currently being serviced indicates fax communication; Indicating SMS for SMS being considered later; A mobile terminal adapter device, characterized in that it is possible to see what is currently being serviced. 2. A mobile station terminal adapter apparatus according to claim 1, wherein a personal computer such as a notebook is used as a data terminal without using an additional dedicated data terminal when a wireless data service is to be supported in a CDMA mobile communication system. CLAIMS 1. A method of driving a mobile terminal adapter device for CDMA data services, comprising: a first step of a mobile terminal subscriber running software on a data terminal; A second step of the mobile station terminal adapter device emulating a modem to store corresponding modem configuration parameters in the mobile station terminal adapter device and to pass a result code to the data terminal; A third step of, when the call with the base station is connected, transmitting modem commands stored by the mobile station terminal adapter device to the IWF in the mobile switching center through the mobile terminal to drive the modem; The mobile station terminal adapter device uses a serial input / output interface of the mobile terminal and a data task driven to interface with the mobile terminal according to the packet processing procedure of the mobile terminal according to the packet defined in the mobile station terminal adapter device and the mobile terminal. A fourth process of transmitting and receiving a packet; When the data terminal requests wireless data service from the mobile terminal or responds to an error, the mobile station terminal adapter device requests the corresponding service option from the mobile terminal to activate a service option that is currently going on in accordance with service option negotiation with the base station. process; And a sixth process of, once the connection with the opposite terminal or the host computer is completed, the mobile station adapter device passes data from the data terminal and the mobile terminal to the opposite terminal and the data terminal. Method of driving the device.