KR19990056130A - Radio call receiver capable of requesting retransmission of failed reception message and its control method - Google Patents

Abstract

The present invention relates to a radio call receiver capable of retransmitting a reception failure message and a control method thereof.

The wireless call receiver capable of confirming the reception failure message, when receiving a call message from the wireless call system, detects the sequence data included in the call message, and fails to receive the sequence if it is not the next sequence number of the sequence data included in the most recently received call message. To alert the presence of a message. However, the wireless call system generates a new type of call message by adding sequence data to the received call message according to the order each time a message for calling a specific call receiver is received from any called subscriber terminal. Send it.

Description

Radio call receiver capable of requesting retransmission of failed reception message and its control method

The present invention relates to a radio call receiver and a control method thereof, and more particularly, to a radio call receiver capable of requesting retransmission of a reception failure message and a control method thereof.

Mobile communication is a communication service that allows a subscriber to receive desired information regardless of location by using a wireless medium called radio waves. The mobile communication system is divided into analog mobile communication and digital mobile communication according to the modulated signal format on the air interface. The digital method is suitable for efficient use of wireless channels and various data services.

In general, wireless products often receive errors due to external environment (eg, noise) or even if they do not receive data. Receiving a call message of a radio call receiver in a wireless call service, one of digital mobile communication services, is no exception.

The called party receives data directly called by the caller, except for various additional services provided by the wireless calling system.If the called party moves in an area with a weak electric field or an area where no service is available, the called party receives the call data. You won't be able to. Therefore, not only the called party should be able to recognize that the data has not been received, but also a method for receiving the data should be prepared.

1 is a diagram illustrating a conventional wireless call receiver displaying a call message, wherein the call message is a caller's telephone number. When the call message is displayed in this way, the normal reception is made. However, there is a case where the called party is late to find out from the caller that he or she has been called. In this case, the call message is usually stored in the wireless call system but not received by the call receiver. The called party has no call message received in his call receiver, so he has no idea of the call.

Accordingly, an object of the present invention is to provide a radio call receiver and a control method for alerting a called party to recognize the fact when a message fails to be received.

Another object of the present invention is to detect the presence of a previously unsuccessful message when the paging receiver receives a call message from the paging system, and automatically resend the paging system to resend the reception failure message. The present invention provides a radio call receiver and a method of controlling the same.

In order to achieve the above object, the wireless call receiver capable of confirming the reception failure message detects the sequence data included in the call message when receiving the call message from the wireless call system, and includes the sequence data contained in the most recently received call message. If it is not the next sequence of the characterized in that it alerts the presence of a reception failure message. However, the wireless call system generates a new type of call message by adding sequence data to the received call message according to the order each time a message for calling a specific call receiver is received from any called subscriber terminal. Send it.

1A is a diagram illustrating a state in which a conventional wireless call receiver displays a call message.

1B is a diagram illustrating a state in which a wireless call receiver displays a call message according to an exemplary embodiment of the present invention.

2 is a view showing a schematic configuration of a wireless call system according to an embodiment of the present invention;

3 is a diagram showing a schematic configuration of a wireless page receiver according to an embodiment of the present invention.

4 is a flowchart illustrating a process of detecting and alerting to a failure of receiving a call message by a wireless page receiver according to an embodiment of the present invention.

5 is a flowchart illustrating a process of detecting a failure of receiving a call message by a two-way radio call receiver according to another embodiment of the present invention and transmitting a retransmission request message to a radio call system;

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 have the same reference numerals as much as possible even if displayed on different drawings. Also, in the following description, many specific details such as components of specific circuits are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau. 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.

1B is a diagram illustrating a state in which a wireless call receiver according to an embodiment of the present invention displays a call message. Unlike the case of FIG. 1, the received call message is appended with sequence data '01'. '-' Is added to distinguish the sequence data from the call message '1234567'. Therefore, the subscriber may check the call message one by one and determine that there is a reception failure message if any of the data is missing.

2 is a view showing a schematic configuration of a wireless call system according to an embodiment of the present invention. The wireless calling system 100 is connected to an arbitrary calling (or called) subscriber's telephone 300 through a public switched network (PSTN) 200, and transmits an encoded calling signal having a predetermined format (eg, POCSAG code) including a calling message. It calls the specific radio call receiver by transmitting it to the transmitter 150 for wireless transmission.

Specifically, the turn data generator 40 generates predetermined turn data so as to have a series of orders each time a call message for the same called party is received. The call message regenerator 50 generates a new type of call message by adding corresponding sequence data to the call message received from any call subscriber. The subscriber-specific call message storage unit 70 stores the regenerated call message. Encoder 60 encodes the regenerated call message in combination with that of another subscriber to generate a call signal having a predetermined format. The queue 80 temporarily stores the call signal and delivers the call signal to the transmitter 150 at a predetermined time.

3 is a view showing a schematic configuration of a two-way radio call receiver according to an embodiment of the present invention. The RF unit 11 receives radio call information, and outputs radio call information converted into digital data by frequency conversion, demodulation, and waveform shaping. In addition, the RF unit 11 transmits a reception failure message retransmission request message or other various signals to the wireless paging system. The decoder 12 decodes the received data and sets an operation mode of the radio page receiver. That is, in the idle mode, the supply of the operating power is controlled at regular intervals to detect the preamble data, and in the batch mode, the word sync data and the set frame data are detected. The detected frame data is decoded and converted into the original data form. The alarm unit 17 is a means for alarming in the form of a special tone, vibration, light flickering, or the like. The controller 13 processes the decoded data output from the decoder 12 to control an alarm sound according to the call. The control unit 13 further includes means 22 for detecting sequence data included in the call message upon receiving the call message, means 24 for storing sequence data detected from the most recently received call message, and the currently detected sequence data. Means for comparing the most recently detected sequence number data to compare whether the currently detected sequence number data is the next sequence number of the most recently detected sequence number data, and if the sequence data is not the next sequence number of the most recently detected sequence number data Means 28 for generating a reception failure message retransmission request message. A frequency synthesizer 14 designates a channel of the RF unit 11 according to the channel data output from the controller 13. The memory 15 stores an EEPROM storing unique address information, frame information, and information for sequential execution of alarms, a program that collectively controls the overall operation of the radio receiver and the execution thereof. ROM for storing the initial data for the storage and RAM for temporarily storing the data generated during the execution of the control program. The key input unit 10 is a user interface means and has a plurality of keys for inputting various operation commands and data necessary for the execution of the commands. The display unit 16 displays the message of the calling party and the status information of the radio page receiver by the display control signal output from the control unit 13.

4 is a flowchart illustrating a process of detecting and alerting to a failure of receiving a call message by a wireless call receiver according to an embodiment of the present invention. In this case, any one-way or two-way radio call receiver may be used.

The controller 13 of the radio call receiver checks whether a new message is received from the radio call system in step 4a. If the new message is received as a result of the check, the controller 13 proceeds to step 4b and the controller 13 determines whether the value obtained by adding 1 to the sequence data of the most recently received message is consistent with the sequence data included in the newly received message. If the result of the determination does not match, it is determined that there is a reception failure message, and the called party indicates that the reception failure message exists through the display unit 16 and the alarm unit (special sound, vibration, or light emission) 17 in step 4c. To know. The called party who is aware of the existence of the reception failure message calls his own radio receiver and then receives a voice prompt requesting the function selection from the wireless calling system. The message can be sent again.

5 is a flowchart illustrating a process of detecting a failure of receiving a call message by a two-way radio call receiver according to another embodiment of the present invention and transmitting a retransmission request message to the radio call system.

The control unit 13 of the two-way radio call receiver checks whether a new message is received from the radio call system in step 5a. If the new message is received as a result of the check, the controller 13 proceeds to step 5b and determines whether the value obtained by adding 1 to the sequence data of the most recently received message is consistent with the sequence data included in the newly received message. If the result of the determination does not match, it is determined that there is a reception failure message, and the controller 13 transmits a message requesting retransmission of the reception failure message to the wireless paging system in step 5c. In step 5d, the display unit 16 and the alarm unit (such as a special sound or vibration or light emission) 17 display and alert the existence of the reception failure message so that the called party can know the fact.

The message requesting retransmission of the reception failure message includes the sequence data of the message that failed to be received, and the wireless call system searches for the corresponding message from the call message storage unit 70 for each subscriber with reference to the sequence data and transmits the message again.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made 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 is concerned that the called party may miss an important call message by displaying and alerting the called party having the wireless call receiver to recognize the fact when there is a message that the wireless call receiver fails to receive. There is no advantage. Also, in case of two-way wireless call receiver, it is convenient to be able to receive the reception failure message from wireless call system by automatically detecting the self-receiving and retransmitting the reception failure message without calling the called party directly. have.

Claims (6)

Whenever a call message for the same called party is received, a new type of call message is generated in which a sequence of data is added to the received call message according to the order, and the predetermined call from the wireless call system which stores and transmits them in a memory. In the wireless call receiver for receiving a call message, Means for detecting sequence data contained in the call message upon receipt of the call message; Means for storing the sequence data detected from the most recently received call message; Means for comparing the currently detected sequence number data with the most recently detected sequence number data to compare whether the currently detected sequence number data is the next sequence of the most recently detected sequence number data; And a warning unit for alerting the existence of a reception failure message if the sequence data is not the next sequence of the most recently detected sequence data. Whenever a call message for the same called party is received, a new type of call message is generated in which a sequence of data is added to the received call message according to the order, and the predetermined call from the wireless call system which stores and transmits them in a memory. In the wireless call receiver for receiving a call message, Means for detecting sequence data contained in the call message upon receipt of the call message; Means for storing the sequence data detected from the most recently received call message; Means for comparing the currently detected sequence number data with the most recently detected sequence number data to compare whether the currently detected sequence number data is the next sequence of the most recently detected sequence number data; Means for generating a reception failure message retransmission request message if the sequence data is not the next sequence of the most recently detected sequence data; And a transmitter for wirelessly transmitting the generated reception failure message retransmission request message to the radio calling system. The method of claim 2, The reception failure message retransmission request message is a radio call receiver capable of requesting a failure reception message retransmission, characterized in that it comprises the sequence data corresponding to the reception failure message. The method according to any one of claims 2 to 3, And a warning unit for alerting the existence of the reception failure message. A method for re-receiving a call message from a wireless call system by a wireless call receiver capable of requesting a retransmission of a reception failure message, A first step of checking whether a call message is received in a standby state; Detecting the receipt of the call message, a second step of checking whether a previously failed message is present; And a third process of requesting retransmission of the corresponding message to the radio calling system upon detecting the presence of a message that has failed to receive, and receiving the reception failure message again from the radio calling system. The method of claim 5, And detecting a presence of the reception failure message, and alerting it.