KR20070091479A - Method for displaying reason of call drop in mobile communication device and mobile communication device thereof - Google Patents

Abstract

A method for displaying the cause of a call drop and a mobile terminal for the same are provided to enable a user to definitely confirm whether a call drop is caused due to a network error or call rejection of the other party. If dialing is executed as the phone number of a called mobile terminal is inputted through the key input part of a calling mobile terminal, a control part of the calling mobile terminal executes a call proceeding process(S210). In the middle of the call proceeding process, the control part judges whether an alerting message is received(S220). If the alerting message is not received, the control part judges that a call drop has been generated due to a network response delay and displays it(S230). However, if the alerting message is received, the control part judges whether a connect message is received(S240). In case the connect message is not received, the control part judges that a call drop has occurred due to the other side's rejection and displays it(S260).

Description

Method for displaying reason of call drop in mobile communication device and mobile communication device

1 is a block diagram of an example of a mobile communication terminal to which a call drop cause display method according to the present invention is applied;

2A and 2B are signal flow diagrams referred to for describing a call progress process in a mobile communication terminal, and

3 is a flowchart provided to explain a call drop cause display method in a mobile communication terminal according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: communication unit 12: key input unit

14 display unit 16 codec unit

18: speaker 20: microphone

22: memory unit 24: control unit

The present invention relates to a method of displaying a call drop cause in a mobile communication terminal and a mobile communication terminal. More particularly, when a call drop occurs during a call progress, the process of performing a call drop is analyzed by analyzing a process performed up to that point in time. The present invention relates to a call drop cause display method and a mobile communication terminal displaying a.

In general, in order to make a voice call between mobile terminals, a mobile communication network undergoes a process of transmitting and receiving messages such as Setup, Call Proceeding, Alerting, Connect, and Connect ACK (Connect Acknowlede). In addition, when the call is disconnected, a process of transmitting and receiving messages such as disconnect, release, and release COM (Release Complete) is performed through the mobile communication network. During this call, the calling mobile station can hear a ringback tone while waiting for a call.

However, when a call drop occurs during such a call process, the calling mobile communication terminal can know only the fact that the call drop has occurred through the information received in the interworking relationship with the network, and the specific cause thereof has not been known. That is, whether the call was disconnected due to unstable mobile communication network status or whether the call was disconnected according to the user's intention of the counterpart mobile communication terminal was not known. Therefore, when a call drop occurs during a call progress, it is necessary to promote user convenience by indicating the cause.

Accordingly, an object of the present invention is to provide a method for displaying a call drop cause in a mobile communication terminal displaying a cause of call drop when a call drop occurs during a call progress and the mobile communication terminal.

Call display cause display method in the mobile communication terminal according to the present invention for achieving the above object, determining whether or not to receive the first message, which is a message corresponding to the call waiting wait after dialing, failed to receive the first message And displaying a network response delay when the first message is received, and determining whether to receive a second message corresponding to a call connection when the first message is received.

Preferably, when the second message is not received, indicating the other party's call rejection; and when receiving the second message, transmitting the response message to perform the call.

Meanwhile, the mobile communication terminal according to the present invention displays a message corresponding to a network response delay when the first message corresponding to the call response waiting is not received through the communication unit and the communication unit after dialing, and displays the first message. And receiving a second message corresponding to the call connection after receiving the second message corresponding to the call connection.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

Call drop cause display method in the mobile communication terminal according to the present invention is basically applied to a mobile communication network environment, such as CDMA, WCDMA, GSM, but is not necessarily limited to other mobile communication network environment that satisfies the conditions according to the present invention Also applicable in.

1 is a block diagram of an example of a mobile communication terminal to which the method for displaying a call drop cause according to the present invention is applied. Referring to FIG. 1, the mobile communication terminal includes a wireless communication unit 10, a key input unit 12, a display unit 14, a codec unit 16, a speaker 18, a microphone 20, and a memory unit 22. , And a control unit 24.

The wireless communication unit 10 provides an interface for wireless communication with a base station through an antenna, a duplexer filter for separating transmission and reception signals from an antenna, a power amplifier for amplifying a transmission signal, a frequency up-change circuit of a transmission path, and a reception path. Frequency down-change circuit, and the like. The key input unit 12 includes a plurality of keys including a numeric key and a function key, and transmits a signal corresponding to a key pressed by the user to the controller 24 to receive an operation command or data of the user. The display unit 14 includes a liquid crystal display (LCD) and the like, and displays a signal reception state and battery information of the other party during a call, and displays information on an operation state of a mobile communication terminal according to a user input command. do. In addition, the display unit 14 displays the cause of the call drop occurring during the call process under the control of the control unit 24.

The memory unit 22 stores programs or data necessary for operating a mobile communication terminal, and various data that a user wants to store. The microphone 20 converts the sound signal into an electrical signal, so that the sound signal can be input to the mobile communication terminal. The codec unit 16 converts a signal applied through the microphone 20 into a digital signal that can be processed by the controller 24. In addition, the codec unit 16 converts the digital signal output from the control unit 24 into a signal reproducible by the speaker 18 and transmits the converted digital signal to the speaker 145 to convert the digital signal into an acoustic signal and output the converted sound signal.

In addition, the controller 24 controls the overall operation of the mobile communication terminal. For example, the control unit 24 controls the operation of each unit such that the call is made according to the receiving telephone number input through the key input unit 12. In addition, the controller 24 analyzes the cause of the call drop according to the message transmitted and received through the wireless communication unit 10 during the call process, and controls the corresponding message to be displayed on the display unit 12.

2A and 2B are signal flow diagrams provided for explanation of a call progress procedure in a mobile communication terminal. First, referring to FIG. 2A, when dialing is performed in an idle state (S100 and S102), the calling mobile terminal A starts a call progress process. Accordingly, a Setup message is transmitted from the mobile communication terminal A to the mobile communication network (S104), and a Call Proceeding message (S106) and an alerting message corresponding to a call response waiting are received through the network (S108).

When the alerting message is received, the mobile communication terminal A is in a ringback state (S110), and the ringback tone is heard. In addition, the mobile communication terminal A receives a Connect message corresponding to a call connection from the network (S112), and transmits a Connect ACK (S114), which is a response message, to the network (S114), and the call is made (S115).

When the call is disconnected, the call is terminated by the transmission of the Disconnect message (S116), the reception of the Release message (S118), and the transmission of the Release COM message (S120) (S122).

2b shows a state in a receiving mobile communication terminal. The receiving mobile terminal B transmits a Call Conf message (S144) when a SETUP message is received (S142) in a standby state (S140), and transmits an Alerting message when a Sync IND message is received through the network (S144). S148, and ringing (S150), a ringing to the mobile communication terminal B. Accordingly, when the user receives a call, a Connect message is sent (S152), and when a Connect ACK is received (S154), a call is made (S156).

During a call, when a Disconncet message is received (S158), a Release message is transmitted (S160), and when a Relaes COM message is received (S162), the call ends (S164). By such a process, a call and a call end are made between the calling party and the receiving mobile terminal.

3 is a flowchart provided to explain a call drop cause display method in a mobile communication terminal according to an embodiment of the present invention. Referring to Figures 1 to 3, the call drop cause display method in the mobile communication terminal according to an embodiment of the present invention will be described.

When the calling mobile terminal is inputted with the telephone number of the receiving mobile terminal through the key input unit 12 and dialing is performed (S200), the controller 24 performs the call proceeding process as described above. (S210). During the call process, the controller 24 determines whether an alert message corresponding to the response wait is received through the wireless communication unit 10 (S220). When not receiving the alerting message, the controller 24 controls the display unit 14 to indicate that the cause of the call drop is a network response delay (S230). Such display may be displayed in a pop-up window.

If an alerting message arrives, it is determined whether a Connect message corresponding to a call connection is received (S240). If it is determined that the Connect message is not received, it indicates that the cause of the call drop is due to the other party's rejection (S260). Unlike this. When the Connect message arrives, the call and the call end are made by the above-described process (S270, S280).

By such a process, when a call drop occurs during a call process, the state of the time of the call drop occurrence may be grasped to indicate whether the call drop is caused by a network error or a call rejection of the receiving user. .

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

As described above, according to the present invention, if a call drop occurs during a call progress, the cause of the call drop is displayed to the user to determine whether the cause of the call drop is due to a network error or the call rejection of the other party. Make it possible. In addition, such information may be provided as an additional service of the mobile communication terminal, and may be usefully used in the test of the mobile communication terminal to determine the cause of the call drop.

Claims (9)

Determining whether to receive the first message, the message corresponding to the call answering standby, after dialing; If no first message is received, indicating a network response delay; And And determining whether to receive a second message corresponding to a call connection, when the first message is received. The method of claim 1, If the second message is not received, displaying the other party's call rejection; And And when the second message is received, performing a call by transmitting a response message. The method of claim 1, And the first message is an alerting message. The method of claim 1, And the second message is a connect message. The method according to claim 3 or 4, And displaying the network response delay and the other party's call rejection indication in a pop-up window. Communication unit; And After dialing, if the first message corresponding to the call response waiting is not received through the communication unit, a message corresponding to a network response delay is displayed, and after receiving the first message, a second message corresponding to the call connection. If not received, the control unit for controlling to display a message corresponding to the other party call rejection; mobile communication terminal comprising a. The method of claim 1, And the first message is an alerting message. The method of claim 1, And the second message is a connect message. The method of claim 1, And a display unit displaying a message corresponding to the network response delay and the other party's call rejection.

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