KR20070069838A - Method and system for providing radio communication for mobile communication terminal - Google Patents

Abstract

A system and a method for providing short-distance radio communication in a mobile communication terminal are provided to transmit a short-distance radio communication signal by using a hotkey, and scan a frequency used to receive a short-distance radio communication signal, thereby initializing a communication interface. A signal of initializing a communication interface is transmitted by using a hotkey of a transmit mobile terminal(S200). A mobile identification number(MIN) of the transmit mobile terminal is inserted into a voice signal input to the transmit mobile terminal, and the voice signal is encoded into a short-distance radio communication signal. The short-distance radio communication signal is transmitted(S204). A receive mobile terminal periodically scans a frequency to receive the short-distance radio communication signal(S206). The short-distance radio communication signal is decoded such that the voice signal and the MIN of the transmission mobile terminal are obtained. The obtained voice signal is reproduced, and the MIN of the transmission mobile terminal is displayed on a displayer of the reception mobile terminal.

Description

System and method for providing short-range wireless communication to a mobile communication terminal {Method and System for Providing Radio Communication for Mobile Communication Terminal}

1 is a view schematically showing the internal structure of a mobile communication terminal for providing short-range wireless communication according to an embodiment of the present invention;

2 is a flowchart illustrating a process of providing short-range wireless communication to a mobile communication terminal according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: microprocessor 120: memory

130: program storage unit 132: mode state storage unit

140: FM transceiver 150: key input unit

160: display unit 170: digital signal processing unit

180: baseband converter 182: speaker

184: microphone 190: RF signal processing unit

192: antenna

The present invention relates to a system and method for providing near field communication to a mobile communication terminal. More specifically, a mobile communication terminal equipped with an FM transceiver transmits a short range wireless communication signal using a hotkey for short range wireless communication, and scans a frequency for receiving a short range wireless communication signal from the FM transceiver. A system and method for initializing a communication interface to receive a near field communication signal.

Significant advances in electronic, computer, and communications technologies are changing the lifestyles of modern people. Internet-enabled personal computers are widely available in almost all homes, schools, and offices, and various content services such as clubs, chats, games, shopping, and news can be provided through computers. Only a few years ago, mobile communication terminal users could use only voice communication-oriented services. However, thanks to the rapidly developing wireless network, mobile communication terminals are also provided with data communication services using the Internet.

The mobile communication system has been developed through the first generation analog AMPS (Advanced Mobile Phone System) method and the second generation cellular (Cellular) / Personal Communication Service (PCS) method. The third generation mobile communication system IMT-2000 (International Mobile Telecommunication 2000), which is enacted as a standard in ITU-R, is commercially available.

Due to the development of the mobile communication system, the area in which the mobile communication system can be used has been expanded, but there are areas in which the mobile communication network for using the mobile communication system cannot be connected smoothly. In areas where mobile communication networks cannot be accessed smoothly, radios are used instead of mobile communication systems.

Radios can be divided into industrial, household and simple frequency communication radios, depending on their frequency and use. There are two types of industrial radios using general radio stations and simple radio stations. General radio stations are assigned frequencies according to their intended use. Simple radio stations are used by persons with a business license only in the frequency band designated by the government.

In addition, the household radio is divided into a type 1 radio using a short wave frequency of 27 Mhz band and a type 2 radio using a microwave / microwave frequency of 440 Mhz band.

On the other hand, when the mobile communication terminal is activated and the mobile communication terminal user frequently enters an area where the mobile communication network is not easily connected, the short-range wireless communication device must be separately carried because the mobile communication terminal cannot be used. When frequent communication is required in real time in the area, there is a problem that the mobile communication system should be connected every time communication is performed.

In order to solve this problem, the present invention provides a mobile communication terminal equipped with an FM transceiver to transmit a short range wireless communication signal using a hotkey for short range wireless communication, and to receive a short range wireless communication signal from the FM transceiver. It is an object of the present invention to provide a system and method for providing short-range wireless communication to a mobile communication terminal for receiving a short-range wireless communication signal by initializing a communication interface by scanning a frequency for the purpose.

In order to achieve this object, according to a first object of the present invention, in a method for providing short-range wireless communication to a mobile communication terminal, (a) using a hotkey of a transmitting mobile communication terminal to generate a communication interface initialization signal; Transmitting; (b) encoding a short-range wireless communication signal by including a mobile identification number (MIN) of the transmitting mobile communication terminal in a voice signal input to the transmitting mobile communication terminal and transmitting the short-range wireless communication signal; (c) receiving a short range wireless communication signal by periodically scanning a frequency by a receiving mobile communication terminal, and decoding a received short range wireless communication signal to obtain a voice signal and a MIN of the transmitting mobile communication terminal; And (d) reproducing the obtained voice signal and displaying the MIN of the transmitting mobile communication terminal on the screen of the receiving mobile communication terminal. .

In addition, according to a second object of the present invention, a mobile communication terminal for providing short-range wireless communication by encoding a voice signal input to the mobile communication terminal into a short-range wireless communication signal, the voice call and data communication transmitted to the mobile communication terminal A microprocessor that controls an overall operation process associated with the control unit, and controls an overall process for the mobile communication terminal to use short-range wireless communication; A memory storing software required for driving the mobile communication terminal and various types of applications downloaded by the mobile terminal user; An FM transceiver for encoding a voice signal input to the mobile communication terminal into a short range wireless communication signal and decoding the short range wireless communication signal into a voice signal; And a display unit which displays an operation state of the mobile communication terminal, displays a menu item for executing an application, and displays a mobile identification number (MIN) of the mobile communication terminal which has transmitted a short range wireless communication signal. Provided is a mobile communication terminal providing near field communication.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, hereinafter, the present invention will be described under the assumption that a code division multiple access (CDMA) 2000 system is used as the mobile communication system. However, the CDMA 2000 system is a system designated for convenience of description and the mobile communication system used in the present invention is not limited thereto.

1 is a view schematically showing the internal structure of a mobile communication terminal for providing short-range wireless communication according to a preferred embodiment of the present invention.

The mobile communication terminal 100 for providing short-range wireless communication according to an exemplary embodiment of the present invention includes a microprocessor 110, a memory 120, a program storage unit 130, a mode state storage unit 132, and an FM transceiver unit. 140, a key input unit 150, a display unit 160, a digital signal processor 170, a baseband converter 180, a speaker 182, a microphone 184, an RF signal processor 190, and an antenna ( Wireless application protocol (WAP), an Internet access protocol, Microsoft Internet Explorer (MIE) based on HTML using the HTTP protocol, and a handheld device transport protocol (HDPT). For example, you can connect to the Internet via a mobile communication network using a browser for wireless Internet access, such as NTT DOCOMO's i-Mode or SK Telecom's NATE.

The microprocessor 110 controls the overall operation process associated with the transmission and reception of voice call signals and data communication signals in the mobile communication terminal 100, and controls to transmit short-range wireless communication signals using a hotkey, and standby When the mobile communication terminal 100 in a state receives a short range wireless communication signal, the FM transceiver 140 performs a function of executing an initialization operation of a communication interface in order to receive a short range wireless communication signal by executing a frequency scan. do.

In the present invention, the hotkey is a key for generating a communication interface initialization signal for transmitting the short-range wireless communication signal by the mobile communication terminal 100. When the communication interface initialization signal is received from the hotkey, the FM transceiver 140 receives the microphone 184. Converts the voice signal input through the short-range wireless communication signal.

The memory 120 includes an electrically erasable programmable read only memory (EEPROM), a flash memory, a random access memory (RAM), and the like, and stores basic programs necessary for driving the mobile communication terminal 100. It is. Flash memory stores basic programs such as real time operating system, mobile terminal call processing software, multimedia coloring software, and short message application for short message creation and confirmation. 130, the software of the program storage unit 130 is loaded into the RAM and driven.

The mode state storage unit 132 stores the current operation mode of the mobile communication terminal 100 selected by the key input unit 150 as a state flag (eg, 0, 1, 2, ...). That is, the microprocessor 110 is assigned to each mode to distinguish the standby mode, the origination mode, the search mode, the call mode, the general incoming mode, the multimedia coloring service incoming mode, the short range wireless communication mode, and the like of the mobile communication terminal 100. The mode state storage unit 132 is updated by assigning a unique state flag.

FM transceiver 140 according to a preferred embodiment of the present invention is mounted inside the mobile communication terminal 100 when the mobile communication terminal 100 uses a short-range wireless communication short-range wireless communication used by the mobile communication terminal 100 Set a frequency of, and encode a voice signal input through the microphone 184 and the Mobile Identification Number (MIN) of the mobile communication terminal 100 to convert the short-range wireless communication signal.

In addition, when the mobile communication terminal 100 receives a short range wireless communication signal by scanning a frequency in the standby state, the FM transceiver 140 decodes the short range wireless communication signal received by the mobile communication terminal 100 to obtain a voice signal. The MIN of the mobile communication terminal 100 is obtained, the obtained voice signal is transmitted to the baseband converter 180, and the MIN of the mobile communication terminal 100 is transmitted to the display 160.

The key input unit 150 includes a number key for inputting a number such as a phone number, a button for inputting a character, and a hot key for transmitting a short range wireless communication signal, and the mobile communication terminal 100 includes a key input unit 150. To write a short message.

The display unit 160 displays an operation state of the mobile communication terminal 100 including a power supply state, a radio wave reception intensity, a date and time, and a menu item for executing an application and the mobile communication terminal 100 wirelessly. Displays a screen for downloading various content applications from the data service, and when the mobile communication terminal 100 receives the short range wireless communication signal, displays the screen of the frequency scan and the MIN of the mobile communication terminal 100 transmitting the short range wireless communication signal. Display.

The digital signal processor (DSP) 170 functions as an equalizer for coding or decoding a voice signal and for removing multipath noise, and for performing sound data processing, decoding of a caller specified multimedia content, and the like. Means a digital signal processing processor to perform. In addition, the digital signal processor 170 exchanges speech data with the baseband converter 180 and digital data including caller-specific multimedia content received from the baseband converter 180. Receive

The baseband converter 180 converts a signal transmitted / received between the FM transceiver 140, the RF signal processor 190, the digital signal processor 170, the speaker 182, and the microphone 184 into a signal of the baseband band. It also performs functions such as digital to analog conversion (DAC) and analog to digital conversion (ADC). The baseband converter 180 transmits the transmission data TXIQ to the RF signal processor 190, and controls the power of the RF signal processor 190 or automatically controls its gain. The RF signal processor 190 receives the received signal RFIQ.

The RF signal processor 190 demodulates and amplifies the short range wireless communication signal and the RF signal received from the antenna 192, modulates a transmission signal applied from the baseband converter 180, and transmits the modulated transmission signal to a radio wave space. The speaker 182 outputs acoustic data transmitted from the baseband converter 180 as an audible sound, and the microphone 184 converts a user's voice input into an electrical signal.

2 is a flowchart illustrating a process of providing short-range wireless communication to a mobile communication terminal according to a preferred embodiment of the present invention.

The mobile communication terminal 100 transmits a communication interface initialization signal using a hotkey of the mobile communication terminal 100 to use short-range wireless communication (S200).

The mobile communication terminal 100 receiving the communication interface initialization signal transmits a voice signal input through the microphone 184 to the FM transceiver 140 in order to transmit a short range wireless communication signal (S202).

The FM transceiver 140 includes a mobile identification number (MIN) of the mobile communication terminal 100 in the voice signal, encodes the short-range wireless communication signal, and transmits the short-range wireless communication signal using the antenna 192 (S204). ).

When the other mobile communication terminal periodically scans a frequency in the standby state and receives a short range wireless communication signal, the mobile communication terminal initializes the communication interface to the frequency at which the short range wireless communication signal is received, and transmits the received short range wireless communication signal to the FM transceiver 140. It transmits (S206).

In this case, the operation of initializing the communication interface with the frequency of receiving the short range wireless communication signal is performed by the FM transceiver 140, and the other mobile communication terminal is separate from the operation of initializing the communication interface by the FM transceiver 140. The communication interface using the mobile communication system receives a signal transmitted from the mobile communication system.

The FM transceiver 140 decodes the received short-range wireless communication signal to obtain a voice signal and a MIN of the mobile communication terminal 100, reproduces the obtained voice signal, and displays the MIN of the mobile communication terminal 100 on the screen. Display (S208).

When the other mobile communication terminal receives a signal transmitted from the mobile communication system while using the short range wireless communication, it plays a notification sound indicating that the signal has been received from the mobile communication system, and displays a notification message.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

As described above, according to the present invention, a mobile communication terminal equipped with an FM transceiver transmits a short range wireless communication signal using a hotkey for short range wireless communication, and receives a short range wireless communication signal from the FM transceiver. By scanning the frequency to initialize the communication interface to receive a short-range wireless communication signal, when the user of a plurality of mobile terminal enters an area where the mobile communication system is not smooth, provides the convenience of using the mobile terminal as a short-range wireless communication equipment It is effective.

Claims (9)

In the method for providing short-range wireless communication to the mobile communication terminal, (a) transmitting a communication interface initialization signal using a hotkey of a transmitting mobile communication terminal; (b) encoding a short-range wireless communication signal by including a mobile identification number (MIN) of the transmitting mobile communication terminal in a voice signal input to the transmitting mobile communication terminal and transmitting the short-range wireless communication signal; (c) a receiving mobile communication terminal periodically scanning a frequency to receive the short range wireless communication signal, decoding the received short range wireless communication signal to obtain the voice signal and the MIN of the transmitting mobile communication terminal; And (d) reproducing the obtained voice signal and displaying the MIN of the transmitting mobile communication terminal on a screen of the receiving mobile communication terminal; Method for providing short-range wireless communication to the mobile communication terminal comprising a. The method of claim 1, wherein the hotkey, And a key for generating a signal for initializing a communication interface of the mobile communication terminal to use the short range wireless communication. The method of claim 1, Step (b) is, The voice signal inputted through the microphone of the mobile communication terminal is transmitted to the FM transceiver, the microprocessor transmits the MIN of the mobile communication terminal to the FM transceiver, and the FM transceiver is the voice signal to the A method of providing near field communication to a mobile communication terminal, characterized by generating the near field communication signal including a MIN. The method of claim 1, Step (c) is, When the receiving mobile communication terminal is in a standby state, the FM transceiver periodically scans a frequency to receive the short range wireless communication signal transmitted by the transmitting mobile communication terminal, and when the short range wireless communication signal is received, the short range wireless communication. And providing the short-range wireless communication to the mobile communication terminal, in which the communication interface is initialized to the frequency at which the signal is received. The method of claim 4, wherein When the FM transceiver performs the task of initializing the communication interface to the frequency receiving the short-range wireless communication signal to provide a short-range wireless communication to the mobile communication terminal, characterized in that for receiving a signal transmitted from the mobile communication system Way. A mobile communication terminal for providing short-range wireless communication by encoding a voice signal input to a mobile communication terminal into a short-range wireless communication signal, A microprocessor controlling an overall operation process associated with voice call and data communication transmitted to the mobile communication terminal, and controlling the overall process for the mobile communication terminal to use the short range wireless communication; A memory for storing software required for driving the mobile communication terminal and various types of applications downloaded by the mobile communication terminal user; An FM transceiver configured to encode the voice signal input to the mobile communication terminal into the short range wireless communication signal and to decode the short range wireless communication signal into the voice signal; And A display unit for displaying an operation state of the mobile communication terminal, displaying a menu item for executing the application, and displaying a mobile identification number (MIN) of the mobile communication terminal transmitting the short range wireless communication signal; A mobile communication terminal providing a short range wireless communication comprising a. The method of claim 6, wherein the microprocessor, When the communication interface initialization signal is received by using a hot key provided in the mobile communication terminal, the voice signal input to the mobile communication terminal is controlled to be transmitted to the FM transceiver, and the MIN of the mobile communication terminal is transmitted to the FM transceiver. A mobile communication terminal for providing short-range wireless communication, characterized in that the control to transmit to. The method of claim 6, wherein the FM transceiver, Set a frequency of the short range wireless communication used by the mobile communication terminal, encode the voice signal and the MIN of the mobile communication terminal into the short range wireless communication signal, decode the short range wireless communication signal to decode the voice signal and the Acquiring a MIN; periodically scanning a frequency when the mobile communication terminal is in a standby state to receive the short range wireless communication signal; and receiving the short range wireless communication signal at the frequency at which the short range wireless communication signal is received. A mobile communication terminal providing near field communication, characterized in that to perform initialization. The method of claim 8, wherein the initializing of the communication interface to the frequency at which the short range wireless communication signal is received is performed. Setting the frequency at which the FM transceiver receives the short range wireless communication signal as the communication interface to continuously receive the short range wireless communication signal transmitted to the mobile communication terminal, and initializing the communication interface; The mobile communication terminal for providing short-range wireless communication, characterized in that the communication interface using the mobile communication system is set separately.

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