KR20030086367A - A device and a operating method of connecting pstn for cellular phone - Google Patents

Abstract

PURPOSE: A PSTN(Public Switched Telephone Network) connection portable phone device and an operating method therefor are provided to connect to a general PSTN in an area such as home or company. CONSTITUTION: A Bluetooth processing unit(120) processes a transceived communication signal according to a Bluetooth protocol by the control of an MSM(Mobile Station Modem)(45). A wireless Bluetooth unit(130) connects to the Bluetooth processing unit(120), modulates and demodulates the communication signal by a Bluetooth frequency, and transceives the communication signal with a corresponding fixing wireless unit(200). A switch unit(110) selects one between the MSM(45) and the Bluetooth processing unit(120), and connects to the selected MSM(45) or Bluetooth processing unit(120) to the path of the transceived communication signal by the control of the MSM(45).

Description

Mobile phone device for public telecommunication network and its operation method {A DEVICE AND A OPERATING METHOD OF CONNECTING PSTN FOR CELLULAR PHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a public telecommunication network using a mobile phone for mobile communication. In particular, a mobile telephone capable of selectively connecting to a wired public telecommunication network in a limited area such as a home or a company by using Bluetooth technology. It is about.

Mobile communication mobile phones generally communicate with a cellular CDMA wireless communication system by wireless connection, and are widely spread by the advantage of being able to communicate instantly anytime and anywhere while moving, but the communication cost and the price of the corresponding device are relatively high. There is an expensive problem.

There is a demand for the development of a cellular phone that is connected to a public switched network (PSTN: PUBLIC SWITCHING TELEPHONE NETWORK), which is relatively low in communication cost, when used in a home or office using the mobile phone for mobile communication as described above.

BLUETOOTH is a method of establishing a wireless connection between devices in a short-range location. It is defined by the IEEE 802 standard. 48 bits are allocated to an address, and communication signals are provided with a dedicated encryption and verification function. Point-to-point and point-to-multipoint connections are possible.

The maximum communication range of Bluetooth is generally about 10m radius, and the data transmission is up to 1 Mbps in the first generation and up to 2 Mbps in the second generation, which can communicate even in areas with electromagnetic interference. have.

The Bluetooth uses a frequency in the 2.45 GHz band, which is an available frequency band worldwide, and uses a different frequency band in some countries. For example, in the case of a desktop computer or a notebook computer, the keyboard and the main body are wirelessly connected. It is used to connect the computer main body and the printer wirelessly, and it has a dedicated transceiver chip (CHIP) or a dedicated IC.

Hereinafter, a device configuration and operation method of a mobile phone according to the prior art will be described with reference to the accompanying drawings.

Attached to explain the prior art, FIG. 1 is a block diagram illustrating a functional block diagram of a cellular phone according to an example of the prior art, and FIG. 2 is a flowchart of a cellular phone originating operation according to an example of the prior art.

Referring to FIG. 1, the mobile phone 10 for mobile communication according to the prior art includes a microphone 20 for converting a voice signal into an electric signal and inputting the same to the mobile phone;

A receiver 30 for converting an electrical signal applied from the mobile phone into a voice signal and outputting the voice signal;

MSM (MOBILE STATION MODEM) unit 40 of the modem function to monitor and control all the functional units of the mobile phone 10 and to process mobile communication signals,

Dial unit 50 for inputting the corresponding information of the counterpart to the communication using the mobile phone 10 to the MSM unit 40,

It is configured to include a wireless circuit unit 60 that is connected to the MSM unit 40 to transmit and receive wirelessly.

With reference to the accompanying FIG. 2, in the outgoing operation using the mobile phone 10 according to the prior art, the MSM unit 40 continuously determines whether a dial signal is input through the dial unit 50. FIG. (S10) and,

When the dialing signal is input from the dial unit 50 as determined in the first step S10, the MSM unit 40 temporarily stores the memory in the corresponding area (S20);

A third step (S30) of storing the dialing signal input by the second step (S20) in a corresponding memory area and determining whether a call button is input;

If it is determined in the third step (S30) that the call button is not input is fed back to the first step (S10), if the call button is input, the call connection request using the dial signal stored in the corresponding memory It comprises a fourth step (S40) for communicating.

Hereinafter, a mobile phone according to the related art having the above configuration will be described in detail with reference to FIGS. 1 and 2.

When calling the other party to communicate using the mobile phone 10 used in the mobile communication, if the other party's unique number is input using the dial unit 50, the MSM unit 40 receives the radio circuit unit Is applied to (60).

The radio circuit unit 60 converts an applied dialing signal into a radio frequency (RF) signal of an allocated frequency and transmits the radio signal to request a CALL connection, and receives the radio signal when the call connection is completed by the radio transmission. When the signal is processed and output to the MSM unit 40, the voice communication signal of the other party can be confirmed through the receiver 30.

Since the voice signal generated from the user who confirms the voice communication signal through the receiver 30 is applied to the MSM unit 40 through the microphone 20 and is again applied to the wireless circuit unit 60, the high frequency of the corresponding frequency ( By converting into RF) signal and outputting wirelessly, it is transmitted to the other party and thus bidirectional communication is performed.

In the outgoing operation using the mobile phone having the above configuration, the MSM unit 40 determines whether the dialing signal is applied from the dial unit 50 (S10), and the dial signal is determined in the determination (S10). If input, the MSM unit 40 stores the dial signal dialed to the corresponding memory (S20).

The MSM unit 40 determines whether a signal of a call button is input from the dial unit 50 (S30), and if the call button signal is not input, returns to the first step S10 (FEEDBACK). When the call button signal is input, the dial signal stored in the memory is output to the wireless circuit unit 60, so that the mobile communication system requests a call connection and communicates through the connected call (S40). ).

The mobile phone of the prior art as described above is a relatively expensive communication cost by real-time communication while moving, the communication cost is very low in the case of using a general public communication network (PSTN).

However, even when the mobile phone according to the related art is in a home or a company that can use a general public communication network, there is a problem in that the mobile communication system is connected to the mobile communication system to bear expensive communication costs.

It is an object of the present invention to provide an apparatus and a method of operating the same, which are connected to a general public telecommunication network in an area such as a home or a company by using a mobile telecommunication phone.

In order to achieve the above object, the present invention, in a mobile communication mobile phone including a wireless circuit unit, the MS unit, a dial unit, a microphone, a receiver, Bluetooth communication signal transmitted and received under the control of the MS unit A Bluetooth processing unit which processes the protocol; A wireless Bluetooth unit which is connected to the Bluetooth processor and transmits / receives data to / from the fixed wireless unit by modulating and demodulating at a frequency allocated to Bluetooth; And a switch unit for selecting one of the SMS unit and the Bluetooth processing unit as a path of a communication signal transmitted and received under the control of the MS unit.

In addition, the present invention, in the mobile communication mobile phone operation connected to the wired public communication network by Bluetooth method; An input process of continuously determining whether a dial signal is input from a dial part and storing the dial signal in a corresponding memory when the dial signal is input; A call request process of continuously determining whether a call button is input after a dial signal is input by the above process; A mode determination process of determining whether the mobile phone is set to a Bluetooth mode or a mobile communication mode when a call connection is requested by an input of a call button in the process; If it is determined in the above process that the Bluetooth mode is set and the input dial signal is not the mobile communication network number, the Bluetooth process is performed by processing the signal by the Bluetooth method and connecting to the wired public communication network.

1 is a functional block diagram of a cellular phone according to an example of the prior art;

2 is a flowchart illustrating an outgoing call operation of a mobile phone according to an example of the prior art;

3 is a functional configuration diagram of a public telecommunication network access cellular phone device according to an embodiment of the present invention;

4 is a conceptual diagram illustrating a service area of a fixed communication unit and a mobile terminal according to the present invention;

5 is a flowchart illustrating a method for operating a public telecommunication network access mobile phone according to an embodiment of the present invention.

** Explanation of symbols on the main parts of the drawing **

10,100: Mobile phone 20,25: Microphone

30,35: Receiver 40,45: SM Part

50,55: dial 60,65: wireless circuit

110: switch unit 120: Bluetooth processing unit

125: fixed Bluetooth processing unit 130: wireless Bluetooth unit

135: fixed wireless Bluetooth portion 200: fixed wireless portion

210: SI oil 220: wired interface unit

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a public telecommunication network connected mobile telephone apparatus and its operation method will be described with reference to the accompanying drawings.

3 is a functional block diagram of a public telecommunication network access mobile phone device according to an example of the present invention, and FIG. 4 is a conceptual diagram showing a service area of a fixed communication unit and a mobile terminal according to the present invention. 5 is a flowchart illustrating a method for operating a public telecommunication network access mobile phone according to an embodiment of the present invention.

Referring to FIG. 3, according to an embodiment of the present invention, a public telecommunication network connected mobile telephone monitors the entire cellular telephone and the wireless circuit unit 65 for transmitting and receiving signal processing in a cellular mobile communication scheme. MSM (MOBILE STATION MODEM) control unit 45, the dial signal and the corresponding special function is selected to enter the operation at the same time the corresponding button to specify that the mobile phone operates in Bluetooth mode or mobile communication mode is Outputs a microphone 25, a voice signal or an acoustic signal to input an included dial unit 55, a voice signal or an acoustic signal to the mobile phone 100. In the mobile communication cellular phone 100 comprising a receiver 35,

Bluetooth processing unit 120 for processing the communication signal transmitted and received under the control of the SMS unit 45 with the Bluetooth protocol (PROTOCOL),

A wireless Bluetooth unit 130 connected to the Bluetooth processing unit 120 to transmit and receive data to and from the fixed wireless unit by performing modulation and demodulation at a frequency allocated to a Bluetooth scheme;

The switch unit 110 selects one of the MS unit or the Bluetooth processing unit as a path of a communication signal transmitted and received under the control of the MS unit 45.

The MS unit 45 controls the Bluetooth processing unit 120 and the wireless Bluetooth unit 130 to operate when a signal for designating a Bluetooth mode is input from the dial unit 55. By controlling the switch 110 to control the microphone 25 and the receiver 35 to be connected to the Bluetooth processing unit 120, and also operates in a Bluetooth mode by the signal of the dial unit 55 In this case, if the dial signal input from the dial unit 55 and stored in the memory MEMORY is a mobile communication dial signal, it is controlled by the mobile communication method and connected to the mobile communication network by applying to the wireless circuit unit 65.

In addition, the fixed wireless unit 200 for wirelessly connecting to the wireless Bluetooth unit 130 of the mobile phone 100, the wireless wireless unit 130 and the wireless radio unit 130 for transmitting and receiving a signal wirelessly Wow,

A fixed Bluetooth processing unit 125 connected to the fixed wireless Bluetooth unit 125 and processing a signal applied by the Bluetooth protocol and processing input / output in a corresponding direction;

A wired interface unit 220 connected to the fixed Bluetooth processing unit 125 and connected to a wired public communication network PSTN in a matching state to input and output a signal;

The CPU 210 is configured to monitor and control each of the functional units.

Referring to FIG. 5, according to the present invention, the operation of the public telecommunication network connected mobile telephone device includes a mobile telecommunication mobile telephone 100 connected to a wired public telecommunication network (PSTN) by a Bluetooth (BLUETOOTH) method. In operation,

The MS unit 45 of the mobile phone 100 continuously determines whether a dial signal is input from the dial unit 55 (S100), and the dial result signal is input (S100). If the input process to store in the memory (S110),

A call request process (S120) for continuously determining whether a call button is input after the dial signal is input and stored by the above process;

When the call connection is requested by the input of the call button in the call request process (S120), the MS unit 45 is the mobile phone 100 is set to the Bluetooth mode (BLUETOOTH MODE) or to the mobile communication mode Mode determination process of determining whether it is set (S130),

If it is determined in the mode determination process (S130) and is set to the Bluetooth mode (BLUETOOTH MODE), and the input dial signal is not a mobile communication unique number to communicate via the mobile communication network (S140) in the Bluetooth (BLUETOOTH) method The Bluetooth process of processing the signal by (S150), connecting to a call (CALL) to the wired public communication network (PSTN) and proceeds with the communication (S160),

If it is determined in the mode determination process (S130) that the Bluetooth mode (BLUETOOTH MODE) is not, process the signal by the mobile communication method (S170), and the call (CALL) connected to the mobile communication network to proceed with the communication (S180) It consists of a mobile communication process.

In the Bluetooth process (S140), the SMS unit 45 is connected to the mobile communication network when the dial signal input from the dial unit 55 is a mobile communication unique number for accessing the mobile communication network. PROCESS) and the mobile communication process to be communicated.

Hereinafter, a public telecommunication network connected mobile telephone apparatus and its operation method according to the present invention having the above configuration will be described in detail with reference to the accompanying drawings.

When communicating using the mobile phone 100 according to the embodiment of the present invention, as shown in FIG. 4, the mobile phone 100 is located in a service area of the fixed wireless unit 200. If there is no wireless connection to the cellular type mobile communication network, the communication cost can be reduced by connecting to the fixed wireless unit 200 and connecting to the wired public communication network (PSTN).

The fixed wireless unit 200 as described above is installed in a specific place such as a home or a company and is connected to a wired public communication network, and generally uses the IEEE 802 standard, uses a frequency of 2.45 MHz band, and has an effective radius or It uses BLUETOOTH, which has a service area of about 10 meters.

That is, the mobile phone 100 should be provided with a function of communicating with the fixed wireless unit 200 in a Bluetooth (BLUETOOTH) method.

Therefore, the cellular phone 100 of the present invention is connected to the fixed wireless unit 200 in a Bluetooth manner to wirelessly transmit and receive a signal, and the Bluetooth processor 120 for processing the input / output signal using the Bluetooth protocol and the 2.45 MHz frequency. Wireless Bluetooth unit 130 for wireless transmission and reception of the signal of the band is provided.

In addition, the switch to connect to a mobile communication network in a region other than the service area of the fixed wireless unit 200, and to connect to a wired public communication network of low communication cost in the service area of the fixed wireless unit 200. The unit 110 is provided, and at the same time, a function for making the above selection is provided in the dial unit 55.

In addition, the MS unit 45 is a case in which the dial signal input from the dial unit 55 is inputted as a unique number for mobile communication even when the mobile phone 100 is in the service area of the fixed wireless unit 200. By controlling the switch unit 110, the microphone 25 and the receiver 35 are applied to the MSM unit 45 without being connected to the Bluetooth processing unit 120 and processed through the wireless circuit unit 65. Connect to the network.

The fixed wireless unit 200 wirelessly connected to the wireless Bluetooth unit 130 of the mobile phone 100 as described above is connected to the wireless Bluetooth unit 130 of the mobile phone 100 through the fixed wireless Bluetooth unit 135. The fixed Bluetooth processor 125 connected to the fixed wireless Bluetooth unit 135 transmits an input / output signal through Bluetooth protocol processing.

That is, a signal input from the wired interface unit 220 connected to the wired public communication network PSTN in a matching state is subjected to Bluetooth protocol processing by the fixed Bluetooth processing unit 125 and the fixed wireless Bluetooth unit 135. It is applied to the signal of the 2.45 GHz band and is wirelessly output, and the radio signal is processed in the reverse direction and is finally applied to the wired public communication network through the wired interface unit 220.

Therefore, the mobile phone 100 of the present invention is connected to a wired public telecommunication network where communication costs are low in a house or a company where the fixed wireless unit 200 is installed, and when the mobile communication system is moving from the outside, the mobile communication system It can be connected to and communicate immediately.

As described above, when a mobile telephone is used to communicate in a Bluetooth service area, that is, in a service area of the fixed wireless unit 200, by connecting to a wired public communication network (PSTN), the corresponding button of the dial unit 55 is pressed. If you want to connect to the mobile communication network to communicate with the mobile communication network, you only need to enter the corresponding unique number calling the mobile communication, but in order to be quickly connected to the corresponding of the dial unit 55 Enter button to set mobile communication mode.

In the method of operating the mobile phone 100 of the present invention as described above, referring to the attached FIG. 5, it is continuously determined whether the dial signal is input from the dial unit 55 by the MS unit 45 ( In operation S100, when the dial signal is input, the input dial signal is stored in the corresponding memory (S110), and it is determined whether a button for a call function is input (S120).

As a result of the determination (S120) when the call button is input, it is determined whether the mobile phone 100 is currently set to the Bluetooth mode or the mobile communication mode (S130).

As a result of the determination (S130), if the cellular phone 100 is set to the Bluetooth mode, it is determined whether the input dial signal, that is, the unique telephone number is the number to be connected to the mobile communication network (S140) When the number is connected to a wired public communication network (PSTN), the MS unit 45 controls the switch unit 110 so that the microphone 25 and the receiver 35 are connected to the Bluetooth processing unit 120, and the Bluetooth. Protocol to be processed (S150), by converting the Bluetooth signal of the 2.45 GHz band through the wireless Bluetooth unit 130 to be transmitted or received, by being connected to the fixed wireless unit 200 is connected to the wired public communication network And communication (S160).

In this case, when the mobile terminal is set to the mobile communication mode as determined in the mode determination process (S130), the MS unit 45 controls the switch unit 110, the microphone 25 and the receiver ( 35 to be connected to the SMS unit 45, by processing according to the protocol method of the mobile communication (S170), and outputs a radio signal of the corresponding frequency via the wireless circuit unit 65 to the call connection to the mobile communication network Request and proceed with the communication (S180).

In addition, when the Bluetooth mode (BLUETOOTH MODE) is determined in the set Bluetooth process (S140), when the mobile communication unique telephone number to access the mobile communication network is input, by processing the mobile communication process (S170, S180), the mobile communication network By connecting to and communicating with a network, communication is performed immediately even when the wired public network is busy or busy.

According to the present invention having the above-described configuration, a mobile communication telephone is used to selectively connect to a wired public communication network and to a mobile communication network. When the wired public communication network is busy, a mobile communication network is used.

In addition, even when the cellular phone is always set in the Bluetooth mode, when the inputted unique telephone number is the mobile communication number, the mobile phone is automatically connected to the mobile communication network, thereby providing convenience for use.

According to the present invention having the above-described configuration, the mobile phone is equipped with a Bluetooth processing function and is set to a Bluetooth mode or a mobile communication mode by a user's selection. It is effective in reducing communication costs.

In addition, even when the Bluetooth mode is set, the mobile communication network can be connected only by inputting a unique mobile communication number, so that the mobile communication network can be used even when the user does not set the mobile communication mode by mistake. It has the effect of improving convenience and reliability.

Claims (7)

In the mobile communication mobile phone including a wireless circuit portion, MS portion, dial portion, microphone, receiver, A Bluetooth processing unit for processing a communication signal transmitted and received by the control of the SMS unit with a Bluetooth protocol; A wireless Bluetooth unit which is connected to the Bluetooth processing unit and transmits / receives data to / from the fixed wireless unit by modulating and demodulating at a frequency assigned to Bluetooth; And a switch unit for selecting one of an SMS unit and a Bluetooth processing unit as a path of a communication signal transmitted and received under the control of the MS unit. According to claim 1, The dial unit includes a corresponding button for designating the mobile phone to operate in a Bluetooth mode or a mobile communication mode, The MMS unit controls the Bluetooth processing unit and the wireless Bluetooth unit to operate when the signal specifying the Bluetooth mode is input from the dial unit, and controls the microphone and the receiver to be connected to the Bluetooth processing unit by controlling the switch. A mobile telephone apparatus capable of connecting to a public telecommunication network. The method of claim 1, wherein the MS unit, When operating in the Bluetooth mode according to the signal of the dial unit, if the dial signal input through the dial unit and stored in the memory is a mobile communication dial signal, the mobile communication method is to control the mobile communication network and to control the connection to the mobile communication network. A mobile telephone apparatus capable of connecting to a public telecommunication network. The fixed wireless unit of claim 1, wherein the fixed wireless unit wirelessly connects to the wireless Bluetooth unit. A fixed wireless Bluetooth unit for transmitting and receiving a signal by wirelessly connecting the wireless Bluetooth unit; A fixed Bluetooth processing unit which is connected to the fixed wireless Bluetooth unit and processes an applied signal by a Bluetooth protocol and performs input / output processing in a corresponding direction; A wired interface unit connected to the fixed Bluetooth processing unit and connected to a wired public communication network in a matched state for inputting / outputting a signal; A mobile telephone apparatus capable of accessing a public communication network, comprising a sipe oil for monitoring and controlling the respective functional units. In the mobile communication mobile phone operation connected to the wired public communication network by Bluetooth method, The MS process of the mobile phone continuously determines whether a dial signal is input from the dial unit, and if the dial signal is input, an input process of storing in a corresponding memory; A call request process of continuously determining whether a call button is input after a dial signal is input by the above process; When the call connection is requested by the input of the call button in the process, the MMS mode determination process for determining whether the mobile phone is set to the Bluetooth mode or the mobile communication mode, If it is determined in the above process and is set to the Bluetooth mode, and the input dial signal is not the mobile communication network number, the Bluetooth process is performed by processing the signal by the Bluetooth method and connecting to the wired public communication network. Method of operating a mobile phone device capable of connecting to a public telecommunication network. The method of claim 5, When it is determined that the mode is not in the Bluetooth mode, the mobile communication process further comprises a mobile communication process for processing a signal by a mobile communication method and performing a call connection to the mobile communication network. How to operate the telephone device. The method of claim 5, If the dial signal input in the Bluetooth process is a mobile communication network number, the method of operating a mobile telephone apparatus capable of accessing a public communication network, characterized in that the mobile communication process is connected to the mobile communication network to perform call processing and communication.