KR20010055055A - Apparatus and method for voice packet data communication using mobile phone - Google Patents

Abstract

PURPOSE: A device and a method for communicating voice packet data using a cellular phone are provided to enable the cellular phone to be connected to a wired network, to perform voice speech without using a wireless frequency. CONSTITUTION: Cellular phones(211,231) convert voice of users into voice packet data. Wired network interface units(229,249) connected to a wired network connects the voice packet data to destinations of incoming parties. The cellular phones(211,231) transmit the voice packet data to the wired network interface units(229,249), while maintaining identical transmission speed.

Description

Apparatus and method for voice packet data communication using a mobile phone {APPARATUS AND METHOD FOR VOICE PACKET DATA COMMUNICATION USING MOBILE PHONE}

The present invention relates to a voice packet data service apparatus and method, and more particularly, to a voice packet data service apparatus and method using a mobile phone.

In general, a mobile phone is a device that performs communication using a radio frequency. However, other parts of the mobile phone except the wireless matching part can be said to include the part of compressing the voice in the landline function. That is, except for the wireless matching part, the codec converts the analog voice signal into pulse coded modulation (PCM) data and the encoder / decoder for compressing / decompressing the PCM data. (Coder / Decoder) and the control unit for controlling the entire mobile phone including the codec and the decoder / decoder. In addition, the phone is equipped with a serial port for data communication.

1 is a view showing the configuration of a typical mobile phone.

The controller 123 controls the overall operation of the mobile phone. The controller 123 transitions each operation state of the mobile phone, generates each task, and controls its operation. The controller 123 controls the components of the mobile phone accordingly.

The RF unit 117 performs up-converting and radio processing of the voice data modulated from the modem 115 under the control of the control unit 123, and transmits the radio data to the base station through the antenna 119. Wireless output). Also, the RF unit 117 converts the received signal received through the antenna 119 into down-converting and digital signals under the control of the controller 123 and outputs the converted signal to the modem 115.

The modem 115 performs a demodulation operation on the received data output from the RF unit 117 and outputs the demodulated received data to the encoder / decoder 113. The modem 115 performs a modulation operation on the signal output from the encoder / decoder 113.

The encoder / decoder 113 performs a decoding operation on the received data output from the modem 115. In this case, the decoding operation may be an operation of releasing received data compressed by Enhanced Variable Rate Codec (EVRC) or Q-CELP or other standard. The encoder / decoder 113 performs a compression operation on the PCM data output from the codec 111.

The codec 111 converts the received data output from the decoder / encoder 113 into a corresponding audio signal and outputs the audible audio signal to the user through the speaker 127. In addition, the codec 111 converts a PCM voice signal output from the microphone 125 and outputs the PCM signal to the decoder / decoder 113.

The RS-232 port 121 matches signal transmission / reception between the PC and the control unit 123 and performs data communication with the PC using a corresponding protocol.

In the description of FIG. 1, each component of the cellular phone performs only wireless communication using radio frequency. Thus, the codec 111 for performing PCM conversion and the like on the user's voice and the decoder / decoder 113 for performing compression or the like on the PCM converted user's voice also perform wireless communication. Will only work.

That is, the conventional mobile phone is designed to operate using only radio frequency, and is not designed to match with a wired network. Therefore, if the configurations of the mobile phones other than the modem 115 and the RF unit 117 that perform wireless matching are matched with the wired network, the microphone 125, the speaker 127, the codec 111, and the / The decoder 113 and the RS-232 port 121 may perform a corresponding operation on the voice signal of the user to make a wired call with the other party.

On the other hand, it is convenient for a user to make a mobile call using a radio frequency while moving. However, where a wired network is provided, such as an office, it is not necessary to use a mobile phone that requires an expensive fee.

For example, if a user can make a call using a mobile phone as a Voice Over Internet Protocol (VOIP) terminal where a wired network is provided, the use of limited radio frequency resources can be reduced and the voice call can be used free of charge. There is a number.

On the other hand, if a PC is provided with a sound card, a microphone and a speaker, the PC can be used as a VOIP terminal, but not all PCs are equipped with a sound card, a microphone and a speaker. Particularly, in the case of a PC used for business purposes, even if the sound card is provided, the microphone and the speaker are not always attached, so the PC in this case is not utilized as a VOIP terminal.

As described above, the conventional mobile phone is designed to operate using only radio frequency, and is not designed to match with a wired network. Therefore, if the remaining configuration matches the wired network except for the wireless matching configuration, the remaining configuration may perform a corresponding operation on the voice signal of the user to make a wired call with the other party. In addition, in order to receive an incoming call using a radio frequency while the mobile phone performs the wired call, the wireless matching configuration should be operated in a paging mode for the incoming call.

Accordingly, an object of the present invention is to provide an apparatus and method for making a voice call without using radio frequency by connecting a mobile phone to a terminal connected to a wired network.

Another object of the present invention is to provide an apparatus and method for performing a voice packet data service by connecting a mobile phone to a terminal connected to an internet protocol network.

Another object of the present invention is to enable a mobile phone to activate a wired matching portion in a voice packet data communication service mode to convert a user's voice into voice packet data, and a wired network matcher is connected to a wired network to transfer the voice packet data to a destination. In connection, the present invention provides an apparatus and method for reducing the use of limited radio frequency resources.

Another object of the present invention is to enable a mobile phone to activate a wired matching portion in a voice packet data communication service mode to convert a user's voice into voice packet data and to activate a wireless matching portion at a predetermined time during the voice packet data communication service. By checking the incoming call from the base station, the wired network matcher is connected to the wired network to connect the voice packet data to the destination, thereby reducing the use of limited radio frequency resources. It is to provide a possible device and method.

The present invention for achieving the above object is a voice packet data communication apparatus using a mobile phone, a mobile phone for converting the user's voice into voice packet data, and a wired network connected to a wired network to connect the voice packet data to the destination of the destination; It is characterized by consisting of a matching device.

The present invention provides a voice packet data communication apparatus using a cellular phone to activate a wired matching portion in a voice packet data communication service mode to convert a user's voice into voice packet data, and to perform a wireless matching portion during the voice packet data communication service mode. A mobile phone operating in a slot mode and a wired network matcher connected to a wired network to connect the voice packet data to a destination of a destination.

The present invention provides a voice packet data communication method of a mobile phone, the first step of activating a wire matching portion provided in the mobile phone when a corresponding key is input, and a wired network connected to a voice packet data connection request message by receiving a destination address from a user. And a third step of transmitting to a matcher, and a third step of performing voice packet data transmission / reception by controlling the wired matching portion when receiving a connection response message from the wired network matcher.

1 is a view showing the configuration of a typical mobile phone.

2 is a diagram showing the configuration of a voice packet data service apparatus using a mobile phone according to an embodiment of the present invention.

3 is a diagram illustrating a protocol structure of a voice packet data service method using a mobile phone according to an embodiment of the present invention.

4 is a view showing a transition of the operating state of the mobile phone according to an embodiment of the present invention.

5 is a diagram illustrating a detailed substate transition of a voice packet data communication state of a mobile phone according to an embodiment of the present invention.

6 is a diagram illustrating a transmission operation process of a voice packet data service apparatus using a mobile phone according to an embodiment of the present invention.

7 is a diagram illustrating an incoming call process of a voice packet data service apparatus using a mobile phone according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Specific details appear in the following description, which is provided to aid a more general understanding of the present invention, and it should be understood by those skilled in the art that the present invention may be practiced without these specific details. It will be self explanatory. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a diagram illustrating a configuration of a voice packet data service apparatus using a mobile phone according to an embodiment of the present invention. A description with reference to FIG. 1 is as follows.

As shown, the first mobile phone 211 is connected to the first PC 225 through the first serial port 221. Similarly, the second mobile phone 231 is connected to the second PC 245 through the second serial port 247. In this case, the first serial port 221 and the first serial port 227 provided in the first PC 225 perform data communication using the corresponding protocol. Similarly, the second serial port 221 and the first serial port 227 provided in the first PC 225 perform data communication using the corresponding protocol. The protocol between the two serial ports may be an HDLC protocol.

The first network interface 229 provided in the first PC 225 is connected to the Internet network 251 to perform a network matching function. Similarly, the second network interface unit 249 of the second PC 245 is connected to the Internet network 251 to perform a network matching function. In addition, the first network interface unit 229 and the second network interface unit 249 each perform a function of connecting voice packet data to the network interface unit corresponding to the IP address of the called-party remote host. In addition, the first network interface unit 229 and the second network interface unit 249 respectively receive a connection request to the originating remote host, and perform a function of connecting the received voice packet data to the corresponding mobile phone. . Also, the first network interface unit 229 and the second network interface unit 249 respectively transmit voice packet data of a user transmitted / received from the corresponding serial port through an IP layer or the like. In addition, the first network interface unit 229 and the second network interface unit 249 each perform an operation of matching transmission rates between the PC and the mobile phone.

The first controller 223 and the second controller 243 control the microphone, the speaker, the codec, the encoder / decoder, and the serial port, respectively, to transmit the user's voice data to the PC during voice packet data service. Or receive voice data from the PC. In addition, the first control unit 223 and the second control unit 243, respectively, to receive the incoming call using the radio frequency during the voice packet data service, the radio matching portion (not shown) provided in the mobile phone in the slot mode Operate.

3 is a diagram illustrating a protocol structure of a voice packet data service method using a mobile phone according to an embodiment of the present invention. A description with reference to FIG. 2 is as follows.

The serial port 315 provided in the first mobile phone 311 transmits / receives voice data 313 of the user by performing data communication with the corresponding protocol with the serial port 317 provided in the first PC 331. Perform the action. Similarly, the serial port 337 provided in the second mobile phone 333 performs data communication with the serial port 339 provided in the second PC 355 using the corresponding protocol to transmit / receive voice data 335 of the user. Perform the receiving operation. In this case, the voice data may be packet data of a predetermined frame (for example, 20mS). The voice data may be PCM voice data compressed with EVRC or Q-CELP.

The serial port 317 outputs the corresponding user voice data to a real time transfer protocol (RTP) 319 on a user datagram protocol (UDP) 321. The RTP 319 transmits the user voice data to the destination address through the IP layer 327 or the like. In addition, the RTP 319 inputs corresponding user data through the IP layer 327 and transmits the user data to the first mobile phone 311 through the serial port 317.

At this time, the connection control unit 323 on the Transmission Control Protocol (TCP) 325 performs an operation for connecting the voice packet data to the IP address of the called party or the called remote host. At this time, the connection controller 323 transmits the connection request message to the connection controller 345 of the corresponding destination address and receives the connection response message again, thereby controlling the connection. In this case, the user may input a corresponding destination address on the first mobile phone 311 and may also input the corresponding destination address on the first PC 331. When the connection response message is received, the controller (not shown) included in the first mobile phone 311 transitions the operation state to a state for voice packet data communication, and transmits / receives the corresponding voice packet data. do.

4 is a diagram illustrating a transition of an operating state of a mobile phone according to an embodiment of the present invention.

When the power is turned on, the control unit provided in the mobile phone transitions to the mobile station initialization state 410. In the mobile station initialization state 410, the control unit determines a service base station, and performs an operation such as synchronization acquisition with the service base station. The controller transitions to an initialization task state 420 and initializes the corresponding tasks. The control unit then transitions to a mobile station idle state 430. The idle state of the mobile station is a power saving state of the mobile phone. The control unit checks an incoming call from the base station only at the time allocated to the mobile station, and the rest of the time stays in the idle state of the mobile station 430. When the incoming signal from the base station is received or the outgoing signal is transmitted to the base station, the controller transitions to the system access state 440. When the corresponding wireless call is established, the control unit transitions to the traffic channel state 450 and performs a call operation.

On the other hand, if the corresponding activation key is input in the mobile station idle state 430, the control unit transitions to the voice packet data communication state 460 according to an embodiment of the present invention. In this case, the corresponding activation key input means that a user inputs a predetermined key for voice packet data communication. When the voice packet data communication is terminated or a radio signal is received from the base station, the controller transitions back to the mobile station idle state 430. The control unit then transitions to the required state and performs the corresponding operation.

5 is a diagram illustrating a detailed substate transition of a voice packet data communication state of a mobile phone according to an embodiment of the present invention. A description with reference to FIG. 4 is as follows.

When the activation key is input (reference numeral 510), the control unit transitions to the Voice Packet Data Communication Initialization Substate 520. At this time, the controller sets the serial port, the codec, the encoder / decoder, etc. provided in the mobile phone to an active state.

The control unit transitions to the connection request standby state 530, receives a destination address from the user through a key input unit, and transmits a voice packet data connection request message to the connected PC. . The controller then waits for a connection response message from the PC.

The user may also enter the destination address in a window of the voice packet data communication program on the PC. In this case, the network interface unit on the corresponding PC generates the voice packet data connection request message. The network interface unit transmits the message to the called party.

On the other hand, when the connection response message is received, the control unit transitions to a conversation substate (540), and performs voice packet data transmission / reception. At this time, the control unit converts and compresses the user's voice into PCM voice data and transmits it to the PC via the serial port. In this case, the transmitted voice data may be data in a packet unit of a predetermined frame (for example, 20 mS). In addition, the controller may add padding data to the voice packet data to maintain the same transmission speed (eg, 9600 bps and 13300 bps). When the voice packet data communication is completed and an end key from the user is input, the controller transitions to the released lower state 560.

On the other hand, the control unit transitions to the Received Event Processing Substate 550 every predetermined time during the call substate 540 and checks whether an incoming call from the base station is received. In this case, the checking operation may be an operation of checking whether a call message, a short message and system information are received. When the incoming call from the base station is received, the control unit displays it on the display unit provided in the mobile phone or notifies the user by using a bell, melody, and the like. At this time, when the user inputs the corresponding key for receiving the incoming call, the control unit transitions to the release substate 560. In the released lower state 560, the controller releases the voice packet data communication state, initializes the mobile station idle state 430 of FIG. 4, and then transitions to the mobile station idle state 430.

6 is a diagram illustrating a transmission operation process of a voice packet data service apparatus using a mobile phone according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 4 to 5.

The controller provided in the originating mobile station 610 transitions to the voice packet data communication state 460 of FIG. 4 when the corresponding activation key is input. That is, when the activation key is input (reference numeral 510), the control unit transitions to the Voice Packet Data Communication Initialization Substate 520. At this time, the controller sets the serial port, the codec, the encoder / decoder, etc. provided in the mobile phone to an active state.

The control unit transitions to the connection response waiting state 612, receives a destination address (eg, an IP address) from the user through a key input unit, and sends a voice packet data connection request message 630 to the calling PC ( 620 is transmitted to the connection control unit 622 provided. In some cases, the connection controller 622 may generate the voice packet data connection request message. In this case, the user inputs the destination address in the window of the voice packet data communication program on the PC, not in the key input unit of the cellular phone. The connection controller 622 transmits the connection request message 630 to the network interface of the called party.

When a response (reference code 632) is received from the receiving side, the connection control unit 622 transmits the connection response message 634 to the control unit of the originating mobile station. When the corresponding connection response message 634 is received, the controller transitions to the call substate 614 and performs a call 640 using voice packet data. At this time, the control unit converts and compresses the user's voice into PCM voice data and transmits it to the RTP 624 of the calling PC 620 via the serial port. In addition, the control unit receives the voice data of the other party from the RTP (624), and processes the corresponding voice data to the user through the speaker.

On the other hand, the control unit transitions to the reception event processing sub-state 616 in the slot mode during the above call sub-state 614, and checks whether the incoming call from the base station is received. In this case, the checking operation may be an operation of checking whether a call message, a short message and system information are received.

When the voice packet data communication is completed and an end key 642 is input from the user or an incoming call is received from the base station and the user inputs the corresponding key, that is, a reception event occurs (644), the controller releases the control. Transition to substate 618. In this case, the controller transmits a connection release message 646 to the connection controller 622, initializes the mobile station idle state 430, and then transitions to the mobile station idle state 430. The controller performs a transition to the operation state, and performs the operation.

7 is a diagram illustrating an incoming call process of the voice packet data service apparatus using a mobile phone according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIGS. 4 to 6.

The control unit provided in the destination mobile station 720 transitions to the voice packet data communication state 460 of FIG. 4 when the corresponding activation key is input. That is, when the activation key is input (reference numeral 510), the control unit transitions to the Voice Packet Data Communication Initialization Substate 520. At this time, the controller sets the serial port, the codec, the encoder / decoder, etc. provided in the mobile phone to an active state.

The control unit transitions to the connection response waiting state 612, and when the connection request message 730 is received and the corresponding key from the user is input 732, the control unit connects the connection response message 734 to the destination PC 710. Send to 718. In addition, the connection controller 718 transmits the connection response message 734 to the connection controller 622 of the calling PC 620 that transmits the connection request message 730.

The control unit transitions to the call substate 726 and performs a call 740 using voice packet data. At this time, the control unit converts and compresses the user's voice into PCM voice data and transmits it to the RTP 716 of the destination PC 710 via the serial port. In addition, the control unit receives the voice data of the other party from the RTP (716), and processes the corresponding voice data to the user through the speaker.

On the other hand, the control unit transitions to the reception event processing sub-state 724 in the slot mode during the above call sub-state 726, and checks whether an incoming call from the base station is received. In this case, the checking operation may be an operation of checking whether a call message, a short message and system information are received.

If the voice packet data communication is completed and an end key 742 is input from the user or an incoming call is received from the base station and the user inputs the corresponding key, that is, a reception event occurs (744), the controller releases the control. Transition to substate 722. In this case, the control unit transmits a connection release message 746 to the connection control unit 718, initializes the mobile station idle state 430, and then transitions to the mobile station idle state 430. The controller performs a transition to the operation state, and performs the operation.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention converts a user's voice into voice packet data by activating a wired matching portion in a voice packet data communication service mode, and a wired network matcher is connected to a wired network to connect the voice packet data to a called party's destination. Thus, there is an advantage that the use of limited radio frequency resources can be reduced. In addition, the mobile phone activates the radio matching portion every predetermined time during the voice packet data communication service to check the incoming call from the base station, so that the user can receive a wireless call message even during a voice packet call.

Claims (14)

In a voice packet data communication apparatus using a mobile phone, A mobile phone that converts the user's voice into voice packet data, A voice packet data communication device using a mobile phone, characterized in that the wire network network is connected to a wired network to connect the voice packet data to a destination. The method of claim 1, wherein the mobile phone, An apparatus for transmitting voice packet data using a mobile phone, wherein the voice packet data is transmitted to the wired network matching unit while maintaining the same transmission rate. The method of claim 2, wherein the voice packet data, Voice packet data communication apparatus using a mobile phone, characterized in that the data in the unit of packet of a predetermined frame. In a voice packet data communication apparatus using a mobile phone, A mobile phone for activating the wire matching part in the voice packet data communication service mode to convert the user's voice into voice packet data, and operating the wireless matching part in the slot mode during the voice packet data communication service mode; A voice packet data communication device using a mobile phone, characterized in that the wire network network is connected to a wired network to connect the voice packet data to a destination. The method of claim 4, wherein the mobile phone, An apparatus for transmitting voice packet data using a mobile phone, wherein the voice packet data is transmitted to the wired network matching unit while maintaining the same transmission rate. The method of claim 5, wherein the voice packet data, Voice packet data communication apparatus using a mobile phone, characterized in that the data in the unit of packet of a predetermined frame. In the voice packet data communication method of a mobile phone, A first step of activating a wire matching portion provided in the mobile phone when a corresponding key is input; A second step of receiving a destination address from a user and transmitting a voice packet data connection request message to a wired network matching device; And receiving a connection response message from the wired network matcher, controlling the wired matching portion to perform voice packet data transmission / reception. The method of claim 7, wherein during the voice packet data transmission / reception, And a fourth step of controlling, by the cellular phone, a wireless matching portion at predetermined time intervals, and checking whether an incoming call from the base station is received. The method of claim 8, When the voice packet data transmission / reception operation is completed or an incoming call is received from the base station and the user selects the voice packet data, the voice packet data communication mode is completed. The method of claim 9, wherein the mobile phone, And transmitting the voice packet data to the wired network matcher while maintaining the same transmission rate. The method of claim 10, wherein the voice packet data, Voice packet data communication method of a mobile phone, characterized in that the data in the unit of packet of a predetermined frame. In the voice packet data communication method of a mobile phone, A first step of transitioning from the idle state of the mobile station to the initial state of the voice packet data communication when the corresponding key is input, and activating the wire matching unit provided in the mobile phone; A second step of transitioning to a connection response waiting state, receiving a destination address from a user, and transmitting a voice packet data connection request message to a connected wired network matching device; A third step of transitioning to a sub-call state when receiving a connection response message from the wired network matcher and controlling the wired matching portion to perform voice packet data transmission / reception; A fourth step of transitioning to a reception event processing sub-state while performing the voice packet data transmission / reception, controlling a radio matching portion at predetermined time intervals, and checking whether an incoming call from a base station is received; When the voice packet data transmission / reception is completed or an incoming call is received from the base station and the user selects the voice packet data, the mobile station transitions to the release lower state, terminates the voice packet data communication mode, and transitions to the mobile station idle state. Voice packet data communication method. The method of claim 12, wherein the mobile phone, And transmitting the voice packet data to the wired network matcher while maintaining the same transmission rate. The method of claim 13, wherein the voice packet data, Voice packet data communication method of a mobile phone, characterized in that the data in the unit of packet of a predetermined frame.