KR100255322B1 - Method for inserting area code automatically in pasing call system - Google Patents

Abstract

PURPOSE: A method for automatically inserting an area code in a radio paging switching system is provided to make a caller's DDD area code automatically inserted into if the caller inputs his telephone number only when he pages a radio paging terminal. CONSTITUTION: A paging call processing unit controls a PSTN interface unit to check whether it is connected with a PSTN(601). If the paging call processing unit is connected with the PSTN, it checks whether a wide-area call is supplied through the PSTN interface unit(602). If the wide-area call is inputted, the paging call processing unit receives a caller's DDD area information from the PSTN(603) and connects with the caller through a generic telephone network(604). The paging call processing unit sends a tone or a message through the PSTN interface unit to inform the caller of paging access(605). The paging call processing unit receives a telephone number inputted by the caller through the PSTN interface unit(606). If the receiving of the telephone number is completed, the paging call processing unit stops the connection with a generic subscriber telephone(607) and connects with a visiting radio paging switching system through a NO.7 network(608). The paging call processing unit sends a message, including paging information and caller DDD area information, to the visiting radio paging switching system through the NO.7 network(609).

Description

Auto Insertion of Area Code in Wireless Call Switching System

The present invention relates to a wireless call switching system, and more particularly, to a method of automatically inserting a caller's DDD area code in a wireless call terminal in a wireless call switching system.

In general, a radio call switching system has performed a service to a paging subscriber in a paging manner. Such a wireless call switching system is capable of wide area network service and roaming service should be available for wide area network service. The roaming service is a function of providing a communication service by receiving a terminal subscriber's status by communicating with a service provider that is originally registered by a terminal that receives a terminal service requesting for service by entering another mobile communication service provider.

1 is a structural diagram of a switching network for a conventional wide area network wireless paging service.

100 is the subscriber's telephone to call the pager. The 200 is a public switched telephone network (PSTN) that provides telephone service to the subscriber's telephone 100. 300 is a wireless call exchange system connected to the PSTN 200 to perform a paging service. 301 is a PSTN matching part which connects with PSTN and introduces a call. 302 is a paging call processing unit in charge of paging call processing. 303 is a base station matching unit which transmits radio call data by controlling a plurality of base stations. 400 is a general low speed base station for transmitting and controlling radio call data to multiple low speed transmitters 401. 304 is the operation matching unit of the module for overall operation, management and monitoring of the radio call switching system. 305 receives a wide area call from the paging call processing unit 302, sends a message and subscriber information (RFCH, CAPCODE) to all registered areas, receives a wide area call message received from a wide area network, obtains RF_CHANNEL_NO from the message, and handles RF_CHANNEL_NO. The paging call processor 302 is a global call processor that requests a broad call processing. No.7 network 500 is a network for exchanging roaming information between radio call switching systems and uses protocol No. 7 PSUP (Paging User Part) used.

Listing the connection rules for realizing the conventional paging service, in particular, the wide area service will be described here. In the case of local service, it is omitted because it belongs to the wide area service range because the calling station calls the wireless call receiving terminal.

1. Connection Regulation between Radio Call Switching System and Radio Call Switching System: No.7 PSUP (Paging User Part) mentioned above.

2. Connection Regulation between Radio Call Switching System and Radio Call Receiving Terminal: When the radio call receiving terminal roams to another area, it shall automatically recognize its location. For example, in the region A belonging to the wireless call exchange system, the area identification code is broadcasted using the reference frequency band, so that the wireless call receiving terminal visiting the region A connects this signal and automatically recognizes its location. After recognizing their location, they must inform the wireless paging exchange system of the area they moved to receive the service.

3. Regulations for the connection between the paging exchange system and the wide area subscribers: The wide area subscribers must notify themselves by special phone number when they leave the country of origin and roam to the area of visit. This is because there is no channel for the radio call terminal to inform the system.

4. Regulations for the connection between a paging exchange system and its operators: The operator of the system assigns wide classes to the general subscribers of the attributable system.

Roaming service has been provided for the existing low-speed subscribers with the above four connection rules. That is, according to the number 4 standard, a wide class is given to a certain subscriber 00. Subscriber 00 leaves his country and roams to the visited area. Radio call receiving terminal a of subscriber 00 tunes to the reference frequency in order to recognize the regional identification code of the visited station by broadcasting according to the above standard 2, receives data indicating the region, and waits for radio call reception in the visited region. Enter The subscriber then registers the location with the subscriber station through the special number by means of the ordinary telephone by means of the standard 3 above. At this time, when a specific general subscriber calls the radio call receiving terminal a, the radio call switching system of the slave station transfers the message to the visited area system by the NO.7 Paging User Part protocol of the above standard 1. At this time, the visiting area wireless call switching system calls the wireless call receiving terminal a.

2 is a table configuration diagram generated for each multi-subscriber,

LOCAL IDENTITY is the region code for each region divided into n regions. RADIO FREQUENCY CHANNEL NUMBER is a visiting channel used by a regional subscriber to move to each region. CURRENT POSITION indicates the current position of this subscriber, and if the subscriber has not moved, YES is indicated in the area code to which the attribution system belongs. If you move to another location, the visited area code will be YES and the original area code will be NO.

3 is a message corresponding to a connection protocol between radio call exchange systems.

In the conventional wireless call exchange system described above with reference to FIGS. 1 to 3, when a person calling a wireless call terminal (hereinafter, referred to as a 'caller') does not call his / her DDD area code, the wireless call terminal subscriber who receives it is There may be a problem of not knowing the caller's correct phone number information. For example, a subscriber to a roaming service who has subscribed to a roaming service (hereinafter referred to as a roaming subscriber) moves to a region and is given a wide class of his / her region, and the call is made and does not include the DDD area code. When a phone number is called, the roaming subscriber has an unclear problem in which area the caller's phone number is. Therefore, the roaming subscriber has to inconvenience by having to check the caller by dialing the telephone number with the DDD area code that he or she guesses to confirm the caller.

Accordingly, an object of the present invention is to provide a method in which a caller's DDD area code is automatically inserted when calling a wireless calling terminal even if the caller inputs only his / her telephone number when calling the wireless calling terminal.

In order to achieve the above object, the present invention provides a method for automatically inserting an area code in a wireless call switching system, wherein the caller's DDD is transmitted from the PSTN switch when a connection communication with a PSTN switch is performed according to a caller's roaming subscriber's call. After receiving the area code, after receiving message information including the caller's calling phone number, the mobile station is connected to the visiting station radio calling exchange system where the roaming subscriber is located and the message information including the caller DDD area code information is transmitted to the visiting station radio calling exchange system. The calling party's wireless call exchange system receiving the caller inserts the caller's DDD area code in addition to the telephone number input by the caller when the roaming subscriber is called.

1 is a structural diagram of a switching network for a general wide area wireless paging service

2 is a message generally corresponding to a connection protocol between radio call exchange systems.

3 is a table configuration diagram generally generated for each multi-subscriber

4 is a control flowchart for transmitting DDD area information of a caller to a visiting station wireless call switching system when a roaming subscriber is called in a calling station wireless call switching system according to an embodiment of the present invention.

FIG. 5 is a control flowchart for automatically inserting DDD area information when calling a roaming subscriber in a visiting station wireless call exchange system according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention, such as specific processing flows. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

It is to be noted that the structure of the switching network for the broadband network paging service according to the present invention is shown in FIG. 1 and the same reference numerals are used. 2 and 3 also apply in part to the present invention. First, the present invention described below is limited to a wide area network wireless calling service, but in the case of local service, a wireless call receiving terminal is called in a wireless station switching system (hereinafter referred to as a 'belonging station') of a wide area service. The description is omitted since it is included in the scope. Also, prior to the description of the present invention, the conditions for carrying out the description of the present invention are the four access rules for roaming subscribers to realize the wide area calling service mentioned in the description of the prior art to perform roaming service for the existing low-speed subscribers. Assume that this is the case.

That is, according to the number 4 standard, a roaming subscriber 00 is given a wide class. Subscriber 00 leaves his country and roams to the visited area. Radio call receiving terminal a of subscriber 00 tunes to the reference frequency in order to recognize the regional identification code of the visited station by broadcasting according to the above standard 2, receives data indicating the region, and waits for radio call reception in the visited region. Enter The subscriber then registers the location with the subscriber station through the special number by means of the ordinary telephone by means of the standard 3 above. As described above, this refers to a case in which the roaming subscriber is registered with the belonging station in another region.

Based on this assumption, a preferred embodiment of the present invention,

In the area code automatic insertion method in a wireless call exchange system,

Receiving the caller's DDD area code from the PSTN exchange when the call is communicated with the PSTN exchange according to the caller's roaming subscriber call in the wireless station switching system;

After receiving the caller's DDD area code from the PSTN exchange, receiving message information including the caller's calling phone number and accessing the visited station wireless call exchange system where the roaming subscriber is located, the message information including the caller's DDD area code information. Sending a call to the visited country wireless call exchange system;

When the message information including the caller DDD area code information is transmitted to the visited station radio call exchange system, the visited station radio call exchange system, which receives the message information, automatically receives the caller DDD area code in addition to the telephone number input by the caller when the roaming subscriber is called. It is made by inserting into the process. The above description will be described in detail with reference to FIGS. 4 and 5. In the following description, the structure of the switching network and the configuration and reference numerals of the radio call switching system are shown in FIG. 1.

FIG. 4 is a control flowchart for transmitting DDD area information of a caller to a visiting station wireless call switching system when calling a roaming subscriber in a dependent station wireless call switching system according to an embodiment of the present invention.

First, before performing step 601, a paging service is performed from the general subscriber's telephone 100 to the wireless call terminal through the PSTN 200. At this time, the PSTN 200, which is connected to the general subscriber's telephone 100, recognizes that the called number is a pager number, and connects to the connected station wireless calling system 300a in which the pager number is registered. Hereinafter, when the roaming subscriber is called in the belonging station radio calling exchange system (hereinafter referred to as 'attribute station') 300a, the caller's DDD area information is transmitted to the visiting station radio calling exchange system (hereinafter referred to as 'landing station') 300b. In step 601, the paging call processing unit 302a controls the PSTN matching unit 301a to check whether it is connected to the PSTN 200. If the test result is connected to the PSTN 200, the process proceeds to step 602. Thereafter, in step 602, the paging call processor 302a checks whether a wide area call is received through the PSTN matching unit 301a. When the wide area call is received, the paging call processor 302a receives the caller's corresponding DDD region information from the PSTN 200 in step 603. Thereafter, in step 604, the paging call processing unit 302a accesses the caller through a general telephone network. Thereafter, in step 605, the paging call processor 302a transmits a tone or a message for notifying the caller of the call connection through the PSTN matching unit 301a. Then, in step 606, the paging call processing unit 302a receives the telephone number input by the caller through the PSTN matching unit 301a. When the caller completes reception of the caller's phone number, the paging call processing unit 302a stops the connection with the subscriber's phone 100 and continuously visits the roaming subscriber 300b and the NO.7 network 500 in the region where the roaming subscriber is currently located. You will be connected. Thereafter, in step 609, a message including call information is sent to the visiting station 300b through the wide area call processing unit 305a and the NO.7 network 500. In this case, the message sent to the visited station 300b includes caller DDD region information received from the PSTN 200. In step 610, when the communication with the visited country 300b is completed, the procedure for automatically inserting the DDD area code information in the attached station ends. On the other hand, the visited station 300b receiving the call is described in detail with reference to FIG. 5 a method for automatically inserting the DDD area information according to the present invention together with the caller's telephone number information by calling the roaming subscriber's wireless calling terminal. Is a control flowchart for automatically inserting DDD area information when calling a roaming subscriber in a visiting station wireless call exchange system according to an embodiment of the present invention.

In step 701, the wide area call processing unit 305b detects the reception of the message from the slave station 300a through the NO.7 network 500, and proceeds to step 702. In step 702, a message is received. The caller's DDD area code information is included in the received message information. After analyzing the message in step 703, the process proceeds to step 704 to control the base station matching unit 303b to call the roaming subscriber through the base station 400 and the transmitter 401, and then adds the caller DDD area code to the caller 100 in addition to the phone number entered. Insert it. At this time, the caller DDD area code is inserted in front of the phone number input by the caller so that the caller DDD area code becomes the information of [area code + phone number]. When the call is completed in step 705, it ends.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible 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, in the present invention, even when the caller inputs only a phone number in the paging service, the wireless calling terminal subscriber can check the correct information of the caller by automatically inserting the DDD area code of the region where the caller is located when calling the wireless calling terminal. It can be effective.

Claims (1)

A method for automatically inserting an area code in a wireless call exchange system consisting of a caller, a PSTN, a dependent station, a visiting station, and a roaming subscriber, Receiving the caller's DDD area code from the PSTN exchange when the call is communicated with the PSTN exchange according to the caller's roaming subscriber call in the wireless station switching system; After receiving the caller's DDD area code from the PSTN exchange, receiving message information including the caller's calling phone number and accessing the visited station wireless call exchange system where the roaming subscriber is located, the message information including the caller's DDD area code information. Sending a call to the visited country wireless call exchange system; When the message information including the caller DDD area code information is transmitted to the visited station radio call exchange system, the visited station radio call exchange system, which receives the message information, automatically receives the caller DDD area code in addition to the telephone number input by the caller when the roaming subscriber is called. Area code automatic insertion method in the wireless call exchange system, characterized in that the process consisting of inserting into.

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