KR19980047824A - Wireless call receiver call message mailbox service control device and method - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a technique for controlling a call message reception according to a local movement of a radio page receiver.

I. The technical problem that the invention is trying to solve

The present invention provides an apparatus and method for preventing a loss of a call message by providing a mailbox service for a call message of a wireless call receiver outside its service area in a base station device.

All. Summary of Solution of the Invention

Any two-way radio call receiver normally informs the base station apparatus of its location by informing its base station apparatus whether the base station apparatus can receive it, and the base station apparatus transmits to the radio call receiver when the radio call receiver is out of its area. After storing the call message for the wireless call receiver is characterized in that it transmits the message stored in the meantime when it comes back to its area. In this case, the base station apparatus requests a call message for the radio call receiver stored in the mailbox of the neighbor base station apparatus to the neighbor base station apparatus and transmits the call message together with the stored call message in the mailbox.

la. Important uses of the invention

Used to provide mailbox service for the call message of the radio page receiver in the base station apparatus.

Description

Wireless call receiver call message mailbox service control device and method

The present invention relates to an apparatus and method for controlling transmission of a call message of a base station apparatus according to a local movement of a radio call receiver in a wireless call system. Particularly, the present invention relates to a mailbox service for a call message of a wireless call receiver outside its service area. The present invention relates to a device and a method for preventing the loss of a call message.

In general, the main functions associated with a radio call receiver include a general calling function and a voice mailbox function. The general calling function simply transmits data such as 'phone number' to the receiver, but the voice mailbox function is mainly used when the caller needs to send a long message.

However, these functions have some limitations, and depending on these functions, in some cases, the receiver of the pager may lose the messages received by his pager. Specifically, the general call function has a disadvantage in that the call cannot be received when the receiver is not in the reception area. This is caused by the base station apparatus not knowing where the current location of the called party is. In addition, in the case of the voice mailbox function, the receiver can know that the voice message has arrived only when he is connected to the voice mailbox. The disadvantage is that the receiver must connect directly.

Accordingly, an object of the present invention is to provide an apparatus and method for preventing a loss of a call message by providing a mailbox service for a call message of a wireless call receiver outside its service area in a base station apparatus.

1 is a block diagram of a wireless call receiver call message mailbox service control apparatus according to an embodiment of the present invention;

2 is a block diagram of a two-way wireless call receiver to which the present invention is applied

3 is a diagram illustrating a wireless call receiver uplink code according to an embodiment of the present invention.

4 is a flowchart illustrating a process of controlling a wireless page receiver call message mailbox service 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. 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.

1 is a block diagram of a wireless call receiver call message mailbox service control apparatus according to an embodiment of the present invention. The wireless call system 100 is composed of a plurality of call receivers, a plurality of base station apparatuses, and a central control system worn by a user. However, in the present embodiment, one call receiver 54, first and second base station apparatuses 22, 24, and central control are provided for convenience. System 32 is shown.

The call receiver 54 has a wireless transmission portion and a reverse paging terminal in the first and second base station apparatuses 22 and 24 for receiving the signal, and the central control system 32 is also downlinked. And a portion for controlling the up link. For the downlink, a call reception dedicated signal (POCSAG code) currently used worldwide is used. This is detailed in CCIR Recommendation 584. In the case of the uplink, the code form of FIG. 3 described later is used.

The general telephone 300 or the facsimile 400 or the personal computer 500 and the switch 200 are shown only to help the understanding of the overall system, and detailed descriptions of these parts are omitted because they are not related to the gist of the present invention.

2 is a block diagram of a two-way wireless call receiver to which the present invention is applied. The key input unit 10 includes keys for inputting call information by a user and generating various control signals of the wireless call receiver. That is, for example, a power key for turning on / off an operation of a wireless call receiver, a key for performing a channel scan operation at a predetermined time period in a channel scan mode, a lead key for displaying a received message, and the like. The RF unit 11 amplifies the weak RF signal of the designated channel received from the base station apparatus through the antenna, frequency-converts the amplified signal to the original signal band, demodulates it, and outputs the waveform by shaping the demodulated signal into digital data. do. The RF unit 11 also transmits a signal to the base station apparatus. The decoder 12 decodes and outputs the digitally coded data output from the RF unit 11. That is, the received coded data (usually BCH coded data) is decoded into original data, and the preamble data, the word sink and its own frame data are detected and output in the form of a bread code. The memory 15 is a memory for storing information of the radio call receiver and may use an E ² PROM. The information stored in the memory 15 includes a cap code composed of unique address data and frame data including region information, reference channel frequencies for setting channels in a region, and a wireless call service in a region set by the reference channel frequency. Stores service channel frequencies for receiving. The controller 13 analyzes the information in the memory 15 to control the call service function of the radio call receiver. First, upon receiving the power key on signal from the key input unit 10, the controller 13 performs a channel scan function for initial driving. That is, the controller 13 sequentially selects the reference channel frequencies accessed from the memory 15, designates a channel by outputting the selected reference channel frequency at a predetermined period, and checks the reception of data from the designated channel. At this time, when data is received, it analyzes the area information included in the cap code to determine the area where the current wireless call receiver is located, and then outputs the service channel frequency of the corresponding area to analyze the frame data received from the designated service channel. The overall function of the two-way radio call receiver is controlled. A frequency synthesizer 14 designates a channel of the RF unit 11 according to the channel data output from the controller 13. The channel data are reference channel frequencies for designating a reference channel frequency in a regional area and service channel frequencies for a wireless paging service of a wide area network subscriber. The display unit 16 displays various situations and received messages generated during the radio call service under the control of the control unit 13. The display unit 16 may be implemented as an LCD. The alarm unit 17 generates an alarm signal when a message is received under the control of the controller 13. The alarm unit 17 includes means for generating an alarm sound, a vibrator for generating a vibration signal, and the like. When the initial power is turned on in the wireless call receiver or the wireless call receiver is moved to another region, it is necessary to analyze the location of the region of the current wireless call receiver and specify the service channel frequency of the region. Such a state is referred to as an initial driving state for convenience, and it is assumed that the initial driving state is performed by an operation of a power switch. When the initial driving state occurs, the controller 13 reads information from the memory 15. The memory 15 stores a cap code of the receiver, a reference channel frequency, a service channel frequency, and the like.

3 is a diagram illustrating a wireless call receiver uplink code according to an embodiment of the present invention. The uplink code encodes 36 bits of data into BCH (63, 36, 5) codes to expand to 63 bits, and adds one bit to make it 64 bits. It is divided into 32 bits and divided into data words A and B, and a reference bit (0) is added at the beginning of each data word, which is used to set the phase reference during differential binary phase shift keying (DBPSK). To do that. The preamble is 33 bits and is an arbitrary bit pattern independent of the BCH code. The 36-bit data includes information such as the type of connection network and the unique identification of the call receiver.

4 is a flowchart illustrating a process of controlling a wireless page receiver call message mailbox service according to an embodiment of the present invention. Each base station apparatus of FIG. 1 has this control program. However, any one base station apparatus is called a first base station apparatus, and any other base station apparatus adjacent thereto is called a second base station apparatus, and is executed in CPU 24a (hereinafter referred to as a first base station apparatus for convenience) of the first base station apparatus. The operation to perform will be described as an example.

In step 4a, the first base station apparatus transmits a radio call signal and then checks whether an ID is received from a specific radio call receiver in response. In other words, it is checked whether the specific radio page receiver has informed that it is in a position where it can be received. If the specific radio call receiver ID is not received as a result of the check, it is regarded as an unreceivable radio call receiver, and in step 4b, the ID of the radio call receiver is transmitted to an adjacent second base station apparatus so that the radio call receiver receives the second base station. Check whether the device has moved to the service right. In step 4c, the first base station apparatus receives the response from the second base station apparatus and analyzes it. If the response indicating the absence of the radio call receiver is received as a result of the analysis, proceeds to step 4d and registers the radio call receiver as a user's own mailbox (hereinafter referred to as the first mailbox for convenience), and is shown in steps 4e and 4f. As described above, when a message for calling the radio page receiver is received thereafter, the message is stored in the first mailbox.

On the other hand, if the specific radio call receiver ID is received as a result of the determination in step 4a, it is checked whether the reception is periodic in step 4g, and returns to step 4a if it is determined to be periodic. This is because the ID of a particular pager is periodically checked because it means that the pager is currently in a receivable location, so there is no need to use the mailbox service. On the other hand, if it is determined that the reception is not periodic, it is determined that the radio call receiver, which was previously considered unreceivable, suddenly entered the area by moving to another area. In step 4h, a signal for requesting a call message corresponding to the radio call receiver, which is stored in a mailbox of the second base station apparatus (hereinafter referred to as a second mailbox), is transmitted to the second base station apparatus. In response, when the second base station apparatus reads out and transmits a call message corresponding to the radio page receiver from the second mailbox of memory 22b, the first base station apparatus receives it in step 4i. The first base station apparatus provides the call message stored in the first mailbox and the call message received from the second base station apparatus to the radio call receiver in step 4j, and the radio call receiver receives the information and displays it on the display unit 16. .

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 provides a mailbox service for a call message of a wireless call receiver outside its service area in a base station apparatus, so that the call message is not lost even if the region is moved. When you go back to the area, you can receive all the call messages at the same time with what you received from the adjacent area.

Claims (3)

A call message mailbox service control apparatus for a wireless call receiver in a wireless call system including two or more adjacent base station apparatuses and an arbitrary two-way wireless call receiver, wherein each base station apparatus includes: A memory for a mailbox for storing call messages to the wireless call receiver according to a predetermined control and storing the call messages to the wireless call receiver ID for each ID; If a specific radio call receiver ID is not received, it is regarded as an unreceiving radio call receiver and is registered as a mailbox using a terminal of the memory, and when the radio call receiver call message is received thereafter, it is stored in the mailbox. Is received again at any point in time, the neighboring base station apparatus requests and receives the radio page receiver call message stored in the mailbox of the neighbor base station apparatus, and then receives the call message stored in its own mailbox from the radio call receiver and the neighbor base station apparatus. Apparatus having a control unit for transmitting the received call message at once. The method of claim 1, wherein the control unit, If a specific radio call receiver ID is not received, it transmits the radio call receiver ID to a neighbor base station device to check whether it moves to the neighbor base station device, and receives a response indicating the absence of the radio call receiver from the neighbor base station device. And the radio call receiver is regarded as an unreceivable radio call receiver. In the method for providing a call mailbox service in any base station apparatus to a two-way radio call receiver, A first step of checking whether or not a specific radio call receiver ID is received; A second step of deciding whether to move to the adjacent base station apparatus by transmitting the wireless call receiver ID to a neighboring base station apparatus if the specific wireless call receiver ID is not received and transmitting it to a neighboring base station apparatus; Receiving a response indicating that the radio call receiver is absent from the neighboring base station apparatus, registering with the user's own mailbox using a terminal, and storing a message in the mailbox if a message for calling the radio call receiver is received thereafter; If the ID of the radio call receiver regarded as unreceived is received again, the base station apparatus requests and receives the radio call receiver call message stored in the mailbox of the neighbor base station apparatus, and then stores the call message stored in its mailbox in the radio call receiver. And a fourth process of providing a call message received from the adjacent base station apparatus.