JPH02250540A - Paging system for character message - Google Patents

Abstract

PURPOSE:To attain the sure transmission of messages by performing the comparison at the pager side between the count value of a counter which counted the number of received character messages and the count value of character messages received from a paging switchboard at each prescribed time and producing an alarm when no coincidence is obtained from the comparison. CONSTITUTION:At the side of a pager 5, an internal message counter is updated for each reception of a normal message and the count value of this counter is compared with the message counter value received from a pager switchboard 1. Then an alarm is produced when no coincidence is obtained from the comparison to inform a user of the pager 5 of the misreception of messages. The user recognizes the misreception of messages and calls the switchboard 1 via a general subscriber telephone 11 included in a general public telephone network 10 or a public telephone to request the retransmission of the omitted message. In such a way, the messages are surely transmitted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a text message paging system for displaying text messages on a pager.

[Conventional technology]

Traditionally, in text message paging systems,
Text messages entered into the paging exchange from subscriber terminals are stored in the message storage device as they are, and the pager user himself recognizes the possibility that the text message may not be received and calls the paging exchange at 9 o'clock and stores them in the message storage device. requesting resending of all text messages that have been sent.

[Original problem that the invention seeks to solve]

In the conventional text message paging method described above, the text messages input from the subscriber terminal to the paging exchange are stored in the message storage device, and the expected message is not sent even after a certain period of time has passed. When a pager user recognizes the possibility that a message may not be received due to the message being in a dead area, etc., the pager user calls the paging exchange and requests retransmission of all messages stored in the message storage device. Pager - Unless the user makes a request to resend a message at his or her own discretion, it will not be possible to deal with missed messages, and unless all stored messages are resent, it will not be possible to determine which message was missed, and the message will be resent. The impact that processing has on the overall system traffic cannot be ignored. Furthermore, even if a serial number is added to the text message sent to the pager, there is a problem in that it cannot be determined whether the previous message was missed unless the next message is received.

[Means to solve the problem]

In the text message paging system of the present invention, the paging exchange has means for adding a serial number to a text message inputted from a subscriber terminal and storing it in a message storage means for each destination pager, and a means for storing the text message inputted from a subscriber terminal in a message storage means. means for transmitting a counter value indicating the number of text messages being sent to the pager at predetermined intervals; and means for a pager user to call the paging exchange and request retransmission of the text message in the message storage means. The pager side is equipped with a counter value that counts the number of received text messages and a text message counter value sent from the paging exchange at predetermined time intervals, and an alarm is issued when a discrepancy is detected. Provide a means to emit.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of a character data paging system according to an embodiment of the present invention, and FIG. #IJ2 is a block diagram of a pager receiver.

In FIG. 1, a general subscriber telephone 11 housed in a general public telephone network 10 and a data input terminal device 12 call a paging exchange 1 to input character data. Control unit @2
controls the message storage device 3 and the wireless device 4 to perform paging processing. Thereby, the text message is transmitted from the wireless device 4 to the pager (pager receiver) 5 and visually displayed.

In FIG. 2, a paging signal sent from the paging exchange 1 shown in FIG. 1 is received by a receiving device 21 and sent to a control device 20. The control device 20 analyzes the data, and if it is addressed to the user, displays a text message on the display device 22 and drives the obituary device 23 to notify the user.

In such a paging system, let us first explain the case where a general membership ministry makes a paging call.
General subscriber telephone 1 accommodated in the general public telephone network 10
1 to the paging exchange 10 to make a call by dialing the representative telephone number, and when it becomes answerable, call the data input terminal device 1.
2 and enter the destination page number and the text message to be sent. The control device 2 in the paging exchange 1 checks whether the input pager number is a pre-registered number, and if it is registered, the message counter value for each pager number stored in the memory is is updated (+1), and the updated value is added to the input text message and stored in the message storage device 3, and the seven messages received at the same time are sent to the wireless device 4.
and send it to pager 5. On the other hand, pager 5
receives paging data at the receiving device 21, and the received data is sent to the control device 20. The control device 20 checks the pager number in the received data, and if it recognizes that the message is addressed to itself, updates the message counter value stored in the memory (+1)L,
Store the message in message buffer memory,
Further, the information is sent to the display device 22 for display, and the alarm device 23 is activated to notify the user.

Next, we will explain in detail how the paging exchange 1 transmits the counter value indicating the number of stored character messages to the pager 5. When the message counter for each registered pager number is set to the initial value, or every time a predetermined period of time elapses, the paging exchange 1 transfers the current message counter value to the pager 5.
Send sequentially to When the control device 20 in the pager 5 receives a signal indicating message counter initialization from the paging exchange 1, it sets the message counter value stored in the internal memory to the specified initial value, and When a signal indicating the counter value is received, it is compared with the internal message counter value, and if there is a discrepancy, a message indicating that the message was not received is displayed on the display device 22, and at the same time the alarm device 23 is activated to alert the pager user. Notify. When a pager user recognizes that a message has been missed, he calls the paging exchange 1 from a general subscriber telephone 11 (or public telephone) accommodated in the general public telephone network 10 and requests retransmission of the missing message. Note that the process of sending the message counter value is not performed to all target pagers at the same time, but may be performed at different times, or when there is free time for paging processing, or may be performed on pagers that can receive the above services. Some steps are taken to minimize the traffic impact on normal call processing, such as requiring subscribers to register.

〔Effect of the invention〕

As explained above, according to the present invention, when accepting or accepting a paging call addressed to a pager subscriber who has been registered in advance in a paging exchange as a message storage target, an input text message is added to a sequence of pager numbers. The message counter is updated by adding a number and storing it in the message storage device, and the message is sent to the pager, and the value of the message counter is updated at predetermined time intervals.
On the other hand, the pager side updates its internal message counter every time it receives a normal message, and updates the internal message counter value when it receives the message counter value sent from the paging exchange. By making a comparison and issuing an alarm if there is a discrepancy,
Pager - Can notify users of missed messages. As a result, the pager user recognizes that a message has been missed and calls the paging exchange at 9 o'clock to request retransmission of the missing message, thereby making it possible to reliably transmit the message.

FIG. 2 is a block diagram of a paging system. FIG. 2 is a block diagram of a pager receiver.

1... Paging switch, 2... Control device, 3... Message storage device, 4...
...Wireless loading, 5... Pager, 10...
... general public telephone network, 11 ... general subscriber telephone, 12 ... data input terminal device, 20 ...
...Control device, 21...Reception device, 22...
... Display device, 23 ... Alarm device.

Agent: Patent attorney, yAit Figure 1 engineering Figure 2

Claims (1)

[Claims] The paging exchange includes means for adding a serial number to each destination pager to store the text messages input from the subscriber terminal in a message storage means, and a counter for indicating the number of text messages stored in the message storage means. The pager includes means for transmitting a value to the pager at predetermined time intervals, and means for a pager user to call the paging exchange and request retransmission of the text message in the message storage means, and the pager side receives the received text message. A character message paging system characterized by comprising means for comparing a counter value that counts the number of characters with a character message counter value sent from the paging exchange at predetermined time intervals and issuing an alarm when a discrepancy is detected.