KR100342506B1 - Method for informing conversation channel state of mobile wireless phone - Google Patents

Abstract

According to an aspect of the present invention, there is provided a communication channel state notification method of a mobile wireless terminal, comprising: a first step of checking an error of a reception frame to determine whether a bad frame continuously occurs above a predetermined number of settings; If the number is more than the number is characterized in that the second step to stop the call service and notify the user of the current call channel status.

Description

Call channel status notification method of mobile wireless terminal {METHOD FOR INFORMING CONVERSATION CHANNEL STATE OF MOBILE WIRELESS PHONE}

The present invention relates to a mobile wireless terminal in a mobile communication system, and more particularly to a user interface method.

In a mobile communication system, a mobile wireless terminal generally terminates a call if it is impossible to maintain a communication channel in a shaded area where radio waves do not reach, such as inside a building. This is a major error in the channel decoding operation of the mobile wireless terminal when the distance between the mobile wireless terminal and the base station is far away, when the mobile wireless terminal enters a shaded area and the radio waves are weakened, or when noise occurs due to the wireless environment. Because it happens.

Therefore, in general, the mobile wireless terminal monitors whether the communication channel state is maintained. For example, the mobile wireless terminal checks an error of a channel decoded frame, and if a bad frame consecutively has a predetermined number or more than a predetermined threshold, the mobile wireless terminal determines that the transmitter has a transmitter. By stopping the operation, the call service is stopped once, and a predetermined timer is started. If a predetermined number of good frames are continuously generated before the predetermined timer expires, the mobile wireless terminal restarts the call service to the user by reactivating the transmitter. At this time, the mobile wireless terminal resets the predetermined timer. However, if more than a certain number of hard frames do not occur until the predetermined timer expires, the mobile wireless terminal completely terminates the call service. At this time, the mobile wireless terminal completely terminates the operation of the transmitter. This releases the corresponding forward call channel.

On the other hand, the operation of monitoring whether the mobile communication terminal maintains the call channel state in the mobile communication system as described above is described in 6.4.4 'Forward Traffic Channel' of the standard specification IS-95A.

FIG. 1 is a timing diagram illustrating an operation of determining, by a mobile wireless terminal, whether a call channel state is maintained according to an error rate of a reception frame in standard standard IS-95A.

The timing diagram 112 indicates the state of the frame received from the base station by the set threshold. That is, the high section 114 indicates that the corresponding reception frame is a bad-frame, and the low section 116 means that the corresponding reception frame is a firm-frame.

A timing diagram of reference numeral 118 indicates an operational state and an inactive state of the forward call channel fade timer. That is, the high period 120 means the operation state of the fade timer, and the low period 122 means the non-operation state of the fade timer. When the bad-frame occurs, the fade timer performs a counting operation, and when the hard-frame continuously generates more than the number of N3m 150, the fade timer is reset and does not operate. Here, N3m 150 is a threshold number of generation of good-frames for determining that the call channel state is good. N3m 150 can be two.

A timing diagram of reference numeral 124 indicates an operation state of a transmitter provided in the mobile wireless terminal. That is, the low section 128 indicates that the transmitter is operating (Enable), and the high section 130 indicates that the transmitter is not operating (Disable).

When the transmitter performs the transmission operation in the call channel state and the number of bad-frames consecutively exceeds N2m (140), the transmitter stops the transmission operation. Here, N2m 140 is the threshold number of bad frames generated to determine that the call channel state is bad. N2m (140) can be 12. In addition, the transmitter re-executes if the hard-frame continuously occurs more than the number of N3m 150 before T5m 160 (for example, 5 seconds) which is the operation period of the fade timer. That is, the transmitter temporarily stops the transmission operation during the section 132 and the mobile wireless terminal stops the call service during the section.

However, after the fade timer performs the counting operation, the transmitter completely terminates the operation if no hard-frame occurs continuously more than the number of N3m 150 again before the T5m 160. That is, the mobile wireless terminal terminates the call service (134). This releases the corresponding forward call channel assigned by the mobile wireless terminal from the base station.

As described above, a temporary call interruption may occur while the mobile wireless terminal performs an operation of monitoring whether or not the call channel is maintained in the mobile communication system. For example, if a user enters a shaded area or the like or the call service is suspended by other mobile radio environment, the user leaves the shaded area or the like again within a preset time (e.g., a fade timer operation period). When the mobile radio environment improves, the user can resume the call again and again.

However, at this time, the conventional mobile wireless terminal does not inform the user that the call is temporarily suspended and the call service is not completely terminated. As a result, in the mobile communication system, if a user suddenly disconnects a call during a call, the user cannot know whether the call is temporarily suspended. Therefore, although the call operation may be resumed later, the user may experience inconvenience of unnecessarily redialing the other party's phone number in order to continue talking with the other party. In addition, even when the call service such as the fade timer is completed and the forward call channel is released is completely terminated, if the mobile wireless terminal notifies the user of the call in a promised manner, the user recognizes that the call service is completely terminated. Since the next operation can be performed efficiently, the mobile wireless terminal can be conveniently used. For example, suppose that the mobile wireless terminal notifies the user of the temporary interruption of the call service, but does not notify that the call service is completely terminated with respect to the subsequent call channel state. At this point, the user will continue to wait for the call status to resume inefficiently, despite the fact that the call service is actually terminated.

As described above, even if the mobile wireless terminal monitors whether the call channel state is maintained during the call operation in the mobile communication system, if the mobile wireless terminal does not notify the user of the current operating states, The function cannot be used efficiently.

It is therefore an object of the present invention to provide a method for a mobile wireless terminal to notify a user of a state of a call channel.

Another object of the present invention is to provide a method for a mobile wireless terminal to notify a user that a call service is temporarily suspended.

It is still another object of the present invention to provide a method in which a mobile wireless terminal monitors whether a call channel state is maintained while a call operation is performed, and notifies the user of current operation states in a promised manner.

In addition, another object of the present invention is to check the error of the received frame during the mobile terminal performs a call operation, if a bad frame occurs continuously more than the set number of the above, stops the call service and notifies the user of the temporary call interruption, If the number of good frames continuously exceeds the set number within the set time, the suspended call service is resumed and the user is notified that the temporarily suspended call service has resumed. If the error does not occur, the method terminates the call service, releases the corresponding call channel, and provides a method for notifying the user that the call service is completely terminated.

According to an aspect of the present invention, there is provided a communication channel state notification method of a mobile wireless terminal, the method comprising: a first step of checking whether an error of a received frame occurs continuously or more than a corresponding number of settings; The second step is to stop the call service and notify the user of the current call channel status when the frames continuously occur above the set number.

1 is a timing diagram illustrating an operation of determining whether a mobile wireless terminal maintains a call channel state according to an error rate of a reception frame in standard standard IS-95A.

2 is a block diagram of a mobile wireless terminal according to an embodiment of the present invention.

3 is a flowchart illustrating a call channel status notification method of a mobile wireless terminal 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. 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 block diagram of a mobile wireless terminal according to an embodiment of the present invention.

The controller 210 controls the overall operation of the mobile wireless terminal. The memory 240 includes a ROM that stores an operating program, an electrically programmable EEPROM, and a RAM. The memory 240 stores a program for controlling a call channel state notification method of a mobile wireless terminal according to an embodiment of the present invention. In addition, the memory 240 stores voice messages, text messages, melodies, and the like for notifying a user of a call channel state according to an embodiment of the present invention.

The display unit 220 may be a display device such as a liquid crystal display (LCD). The display unit 220 displays the state of the mobile wireless terminal or the progress of the program under the control of the controller 110. In addition, the display unit 220 displays a corresponding text message indicating the call channel state.

The key input unit 230 includes a plurality of numeric keys and function keys for performing various functions, and outputs key input data to the controller 210 by an external operation. The vibrator 290 performs a vibrating operation to notify the user of the call channel state while the call is interrupted by the control of the controller 210. In addition, the buzzer 295 generates a buzzer sound for notifying a user of a current call channel state under the control of the controller 210.

The RF unit 260 up-converts the signal input from the analog baseband unit 270 under the control of the controller 210 and wirelessly outputs the signal to the base station (not shown) via the antenna. In addition, the RF unit 260 down-converts the received signal received through the antenna under the control of the controller 210 and outputs it to the analog baseband unit 270. The analog baseband unit 270 converts a signal input from the RF unit 260 into a baseband and a digital signal and outputs the signal to the control unit 210. In addition, the analog baseband unit 270 outputs a signal output from the control unit 210 to the RF unit 260. The control unit 210 performs channel demodulating and channel decoding operations on the digital signal output from the analog baseband unit 270.

In addition, the controller 210 monitors whether the call channel is maintained. To this end, the controller 210 checks an error of a channel decoded frame and monitors whether a bad-frame and a good-frame continuously occur more than the corresponding number. The controller 210 controls the display unit 220, the vibrator 290, the buzzer 295, and the like to inform the user of the call channel state according to an exemplary embodiment of the present invention.

The controller 210 displays corresponding graphic data on the display unit 220. The controller 210 outputs the corresponding voice data to the voice signal processor 280. The voice signal processor 280 compresses / decompresses the voice data, converts the voice data into an audible voice signal, and outputs the same to the user through a speaker.

In addition, the voice signal processor 280 converts and compresses a voice signal of the user output from the microphone into voice data and outputs the voice signal to the controller 210. The controller 210 performs operations such as channel coding and channel modulation on the voice data, and wirelessly transmits to the base station via the analog baseband unit 270, the RF unit 260, and the antenna. Output In addition, the voice signal processing unit 280 converts a voice message and a melody, etc. for notifying the user of a call channel state stored in the memory 240 to an audible signal under the control of the control unit 210 and listens to the user through the speaker. .

3 is a flowchart illustrating a call channel state notification method of a mobile wireless terminal according to an embodiment of the present invention. Hereinafter, a description will be given with reference to FIG. 2.

In step 310, the controller 210 checks an error of a received frame. In operation 320, the controller 210 checks whether a number of bad-frames are continuously generated. If the bad frames do not continuously occur in a predetermined number or more, the controller 210 performs the control operation from step 310 again.

If more than a predetermined number of bad-frames are continuously generated, the controller 210 stops the operation of the transmitter to stop the call service and operates a predetermined timer in step 330. In operation 340, the controller 210 notifies the user that the call is temporarily suspended. In this case, the controller 210 may notify the user of the current call suspension state of the mobile wireless terminal by using a melody, text message display, vibration, and voice message.

In addition, in step 340, in step 350, the controller 210 checks whether or not hard-frames occur in a predetermined number or more continuously until the predetermined timer expires. Before the predetermined timer expires, if a good-frame continuously occurs in a predetermined number or more, in step 360, the controller 210 resumes the call service and initializes the predetermined timer. In step 370, the controller 210 notifies the user that the call has been resumed, and performs the control operation from step 310 again. In this case, the controller 210 may notify the user of the current call resumption state of the mobile wireless terminal by using a melody, a text message display, a vibration, a voice message, and the like.

In step 350, if the hard-frame does not occur more than a predetermined number continuously until the predetermined timer expires, in step 380, the controller 210 terminates the call service and completely terminates the transmitter operation. In operation 390, the controller 210 notifies the user that the call is completely terminated. In this case, the controller 210 may notify the user of the current call complete state of the mobile wireless terminal by using a melody, a text message display, a vibration, a voice message, and a buzzer sound.

2 to 3, the mobile wireless terminal according to an embodiment of the present invention checks an error of a received channel decoded frame during a call, and stops a call service when a bad number of bad-frames are continuously generated. do. It informs the user that the call is temporarily suspended. In addition, according to an embodiment of the present invention, if a certain number of hard-frames occur consecutively or more until a predetermined timer expires, the call service is resumed and the user is informed that the call service is resumed. In addition, the embodiment of the present invention terminates the call service and completely terminates the operation of the transmitter, unless a certain number of consecutive flames occur continuously until the predetermined timer expires. The user is then notified that the call has ended completely.

As described above, the present invention monitors whether a mobile wireless terminal maintains a call channel state while performing a call operation, and notifies the user of current operating states of the mobile wireless terminal in a contracted manner, so that the user can use the mobile wireless terminal. There is an advantage that the terminal can be used efficiently.

Claims (7)

In the communication channel state notification method of a mobile wireless terminal, A first step of inspecting an error of a received frame from the base station to determine whether a bad frame occurs continuously or more than a corresponding set number; And a second step of stopping a call service and notifying the user of the call service interruption state when the bad frames occur continuously or more than the corresponding set number. The method of claim 1, wherein after performing the second step, A third step of resuming the interrupted call service and informing the user that the temporarily interrupted call service has resumed if a good frame continuously exceeds the set number within the set time; If the good frame does not occur more than the set number of consecutive times within the set time, the operation of the transmitter is completely terminated, and the corresponding call channel is released and the fourth step of notifying the user that the call service is completely terminated is further performed. Call channel status notification method of a mobile wireless terminal, characterized in that performed. The method of claim 2, wherein the method for notifying the user is Call channel status notification method of a mobile wireless terminal characterized in that the melody. The method of claim 3, wherein the method for notifying the user is Call channel status notification method of a mobile wireless terminal characterized in that the text message display. The method of claim 4, wherein the method for notifying the user is Call channel status notification method of a mobile wireless terminal, characterized in that the vibration. The method of claim 5, wherein the method for notifying the user is Call channel status notification method of a mobile wireless terminal, characterized in that the voice message. 7. The method of claim 6, wherein the method for notifying the user is Call channel status notification method of a mobile wireless terminal, characterized in that the buzzer sound.