KR20040051357A - Method for Call Termination in Mobile Communication System - Google Patents

Abstract

PURPOSE: A method for terminating a call in a mobile communication system is provided to remove delay generated in a call termination environment in an alerting process of a mobile communication system and quickly show a user disconnection indication, thereby realizing a more accurate and prompt mobile communication service. CONSTITUTION: An alerting signal is received to generate an alerting call tone(401). It is confirmed whether the alerting call tone is turned on(402). If so, it is confirmed whether a connecting signal is received(403). If so, a telephone call is executed(404). If the alerting call tone is turned off, a disconnection signal is generated to be transmitted to a network and a picture is converted into an initial picture(405-406).

Description

Method for Call Termination in Mobile Communication System

According to the present invention, when attempting a mobile originated call in a mobile communication system, a delay occurring during a call termination process occurring due to weak field movement, battery detachment, network instability, etc. A call termination method in a mobile communication system for promptly informing a user of a call termination and switching to an initial screen by processing a delay, and a computer-readable recording medium recording a program for realizing the method.

In general, in order to attempt a call in a mobile communication system, a mobile subscriber (hereinafter referred to as "MS") requests a channel assignment to a network, and when a channel is assigned, a setup signal (SETUP Signal) is used. Attempt to connect with the other party. When the other party is connected to the other party, the other party rings a ring tone, and the MS attempting the call receives an alerting signal and generates an alerting tone. do.

When the other party attempts to talk after receiving the signaling signal, the connect signal is received by the MS, and then the call is made.

After the call is made, the MS generates a disconnect signal to disconnect the call, and then the call is terminated by releasing the call and the channel in order. If the other party hangs up during the call, the disconnection signal is received and the call is disconnected. This will be described in more detail with reference to FIGS. 1A and 1B.

1A and 1B are exemplary diagrams illustrating a call setup process in a conventional mobile communication system.

1A illustrates a call connection process in a conventional mobile communication system.

First, the MS 110 requests a channel to the network 120 (131), and the network 120 is assigned to the MS 110 (Imm Assignment) (132). The MS 110 sends a Set Asynchronous Balanced Mode (SABM) signal to the network 120 (133) and receives an Unnumbered Acknowledgment Response (UA) signal (134). Next, the MS 110 sends a SETUP signal to the network 120 (135), the network 120 sends a Call Processing signal (136), and an Alerting signal. (137). At this time, when the connection with the other party is established, the other party rings a ring tone, and the MS 110 attempting the call receives an alerting signal and receives an alting call tone. This will occur.

When the other party attempts to talk after receiving the signaling signal (Alerting Signal), the connect signal (Connect Signal) is received by the MS (138), and then the call is made.

1b illustrates a call disconnection process in a conventional mobile communication system.

First, when the MS 110 sends a disconnect signal to the network 120 (141), the network 120 sends a release signal to the MS 110 (142). When the MS 110 sends a release complete signal to the network 120 (143), the network 120 sends a channel release signal to the MS 110 (144). Next, the MS 110 sends a disconnect signal to the network 120 (145) and the network 120 sends an Unnumbered Acknowledgment Response (UA) signal to the MS 110 (146).

However, in FIG. 1A, after the MS 110 attempts to make a call and receives an signaling signal, if the other party moves to a weak electric field, a battery is removed, or a network is unstable. Calls may be disconnected for some reason. In this case, only after receiving a disconnect indication signal from the network 120, the MS 110 releases a call / channel and enters an initial screen. This will be described in more detail with reference to FIG. 2 as follows.

FIG. 2 is a diagram illustrating an embodiment of an in-call process during call setup in a conventional mobile communication system.

As shown in FIG. 2, after receiving an signaling signal (Alerting Signal) from the network 220 (231), if the other party moves to the weak field, battery detachment (Battery), or network unstable reasons (Call) ) May be broken. In this case, the MS 210 releases the call / channel (233) and enters the initial screen only after receiving the disconnect indication signal (Disconnect Ind Signal) from the network 220 (232). In this case, a time of about 20 to 30 seconds is usually delayed until a disconnect ind signal is received, and during this time, it is difficult for a user to check whether a call is disconnected. In this case, when the calling signal (Alerting Signal) is received, the calling tone (Alerting Call Tone) is generated. In this case, the tone is not generated but appears as a silent.

The present invention has been proposed in order to solve the above problems, such as weak field movement, battery detachment, network instability, etc. during a mobile call when attempting a mobile originated call in a mobile communication system. A call termination method and a program for realizing the method in a mobile communication system that can notify a user of a call termination and quickly switch to an initial screen by handling a delay in a call termination process that occurs for a reason. Its purpose is to provide a computer-readable recording medium having recorded thereon.

1A and 1B illustrate an embodiment of a call setup process in a conventional mobile communication system.

2 is a diagram illustrating an embodiment of an in-call process during call setup in a conventional mobile communication system.

3 is a diagram illustrating an embodiment of a call termination method in a mobile communication system according to the present invention;

4 is a flowchart illustrating a call termination method in a mobile communication system according to the present invention;

* Explanation of symbols for the main parts of the drawings

310: mobile subscriber (MS) 320: network (Network)

331: Alerting 332: Disconnect

The method of the present invention for achieving the above object, in the method of call termination in a mobile communication system, a first step of receiving an alerting signal (Alerting Signal) from the network to generate the calling tone (Alerting Call Tone) ; A second step of checking the state of the calling tone (Alerting Call Tone); As a result of the checking of the second step, if the calling tone (Alerting Call Tone) is On (On), check whether the connection signal (Connect Signal) is received from the network, if the call is received, if not received A third step proceeding to the second step; And a fourth step of generating a disconnect signal and transmitting the disconnected signal to the network if the calling tone is off when the checking result of the second step is off. Characterized in that.

Meanwhile, the present invention provides a mobile communication system including a processor for receiving an alerting signal from a network and generating an alerting call tone in a mobile communication system having a processor for terminating a call in a mobile communication. function; A second function of checking a state of the calling tone (Alerting Call Tone); As a result of confirming the second function, if the calling tone (Alerting Call Tone) is On, it is checked whether a connection signal is received from the network. A third function proceeding to the second function; And a fourth function of generating a disconnect signal and transmitting a disconnect signal to the network if the calling tone is off when the second function is confirmed. A computer readable recording medium having a program recorded thereon is provided.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a diagram illustrating an embodiment of a call termination method in a mobile communication system according to the present invention.

As shown in FIG. 3, the call termination method in the mobile communication system according to the present invention may include receiving an signaling signal from the network 320 when the MS 310 attempts to call. (331) When a call tone (Alerting Call Tone) is generated and a connection signal is received, a call is made, but the other party does not have any reason because the other party moves to the weak field, removes the battery, or network instability. If no response or normal signal is transmitted, the MS 310 attempting to call continues to call until it receives a disconnect signal from the network 320. Will be in a state.

Accordingly, when the tone is not generated by checking the calling tone, the disconnection signal is internally generated and transmitted to the network 320 at the time when the tone is not generated (332). In this case, since the MS 310 internally generates the disconnect signal without waiting for the disconnect signal transmitted from the network 320, no delay is displayed and the user is switched to the initial screen. Indicate that the call is disconnected. The user can also quickly detect that the call is disconnected.

4 is a flowchart illustrating a call termination method in a mobile communication system according to the present invention.

As shown in FIG. 4, the call termination method in the mobile communication system according to the present invention first generates an alerting call tone by receiving an signaling signal (Alerting Signal) (401).

Next, it is checked whether the calling tone (Alerting Call Tone) is On (402).

As a result of the check, if the calling tone (Alerting Call Tone) is On, it is checked whether a connection signal is received from the network (403). If it is received, the call is performed (404). If again, the process proceeds to step 402 to check whether the calling tone (Alerting Call Tone) is On (On).

As a result of the check, when the calling tone (Alerting Call Tone) is Off, a disconnect signal is generated and transmitted to the network (405), and the screen returns to the initial screen (406).

The present invention as described above is software-applicable to a Global System for Mobile Communications System (GSM) phone and the like and involves an indication of a user upon initial screen switching. In this case, the display may be a visual display, an acoustic display, or a tactile display.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

As described above, the present invention eliminates delays that occur in a call termination environment that may occur during a calling process in a mobile communication system, and provides a quick disconnect indication to a user. By switching to the screen has an effect that can provide a more accurate and fast mobile communication service to the user.

Claims (4)

In a call termination method in a mobile communication system, A first step of receiving an signaling signal from a network to generate an calling tone; A second step of checking the state of the calling tone (Alerting Call Tone); As a result of the checking of the second step, if the calling tone (Alerting Call Tone) is On (On), check whether the connection signal (Connect Signal) is received from the network, if the call is received, if not received A third step proceeding to the second step; And As a result of the checking of the second step, if the calling tone (Alerting Call Tone) is off (Off), a fourth step of generating a disconnect signal and transmitting to the network, and switching to the initial screen Call termination method in a mobile communication system comprising a. The method of claim 1, The fourth step, Calling method in the mobile communication system characterized in that the calling tone (Alerting Call Tone) is off due to weak field movement, battery detachment, network instability. The method according to claim 1 or 2, The initial screen switching of the fourth step, A method for terminating a call in a mobile communication system, characterized by accompanied by visual, audio, and tactile indications. In the mobile communication system having a processor for call termination in mobile communication, A first function of receiving an signaling signal from a network to generate an alerting call tone; A second function of checking a state of the calling tone (Alerting Call Tone); As a result of confirming the second function, if the calling tone (Alerting Call Tone) is On, it is checked whether a connection signal is received from the network. A third function proceeding to the second function; And A fourth function of generating a disconnect signal and transmitting the disconnected signal to the network if the calling tone during the call is off as a result of confirming the second function; A computer-readable recording medium having recorded thereon a program for realizing this.