KR20040016609A - Method for blocking spam sms by using a control sms - Google Patents

Abstract

PURPOSE: A method for blocking a spam short message by a control short message is provided to effectively block the spam short message through a mutual operation between an SMSC(Short Message Service Center) and a mobile communication terminal. CONSTITUTION: An SMSC generates a control short message including an SMS spam command and a spam keyword. The SMSC selects a mobile communication terminal among a plurality of mobile communication terminals for transmitting the control short message. The SMSC transmits the control short message to the selected mobile communication terminal. The mobile communication terminal receives the control short message transmitted from the SMSC through a mobile communication network(402). The mobile communication terminal extracts the SMS spam command and the spam keyword from the received control short message(408). The mobile communication terminal registers or deletes the spam keyword in a spam keyword table of the mobile communication terminal according to the SMS spam command(410-440). The mobile communication terminal checks whether a newly received short message is a spam short message with reference to the spam keyword table(430,432). If the new short message is the spam short message, the mobile communication terminal blocks the new short message(436,450).

Description

Method for blocking spam short message using control short message {METHOD FOR BLOCKING SPAM SMS BY USING A CONTROL SMS}

The present invention relates to a short message service, and more particularly, to a method executed in an SMSC and a mobile communication terminal to block a spam short message.

Short message service (SMS) is a text service that can exchange short sentences of about 40 characters between a mobile communication terminal or a personal computer connected to the Internet and a mobile communication terminal. Unlike e-mail, contents can be delivered at the same time as when they are sent. Unlike wireless paging service, they can be stored for several days even if the mobile terminal is turned off or even in an area where communication is impossible. It is hardened state.

As short message service emerges as a new means of communication, the advertisements using it are flooding. In particular, in Korea, where the communication infrastructure is well established such that the number of mobile subscribers corresponds to almost half of the total population, target marketing methods using personal information or location information of subscribers are already commercialized.

Irrespective of the subscriber's intention, such a short message can be positively provided to provide the subscriber with useful information. However, it is a fact that the subscriber has the inconvenience of having to delete the received message one by one, and there is a side effect of waste of radio resources. A similar situation has already occurred on the Internet. On the Internet, one-sided advertisements using e-mail, such as SPAM E-mail or Junk E-mail, have become a big problem.

1 is an exemplary diagram for explaining a spam mail blocking method in the Internet. The spam mail blocking method on the Internet is largely divided into a mail server method and a mail client method. However, both methods have the same actual operation. That is, the blocking method in the mail server 12, 20, and 30 is that the mail server 12, 20, and 30 search for the subject or full text of the mail to block mail containing a specific keyword or suspend sending. And a method of blocking or suspending sending mail received from a specific email address. In addition, the mail clients 22 and 32 use a method of searching the subject or full text of the received mail or moving or deleting mail sent from a specific email address to a specific folder.

Recently, a free web mail service provider introduced a method of suppressing spam mail by charging a fee to a mail sender who sends a large amount of mail. The spam mail sender 10 sends spam mails to a plurality of recipients 22 and 32 included in an email list extracted from the Internet. Generally, spam mail senders 10 that send spam mails such as adult advertisements or product advertisements may use their own mail servers, but use a free web mail service to hide sender information. Therefore, the web mail server A 12 detects the spam mail sender 10 which sends a certain amount of mail and makes it possible to send the mail only after paying the usage fee, thereby suppressing the indiscriminate sending of the spam mail to some extent.

Although it is well known that the above-described spam mail blocking method effectively blocks spam mails, there are the following problems in applying it to the short message service of a mobile communication network.

First of all, the problem of SMSC is that, unlike e-mails, short messages have no subject, so a full-text search must be performed to check whether the short message is a spam short message. However, unlike the mail server of the Internet environment, when the SMSC, which needs to process short messages of all subscribers subscribed to a specific mobile carrier, performs a full search for all short messages, a large load is placed on the SMSC.

In describing the problems in terms of mobile terminals, there is no user interface that can block a spam short message so far, and even if the user interface can block, it is inconvenient that the subscriber must register keywords. have.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a method capable of effectively blocking a spam short message through an interaction between an SMSC and a mobile communication terminal, and a storage medium in which the method is recorded.

In addition, another object of the present invention is to provide a method for blocking a spam short message that can be easily applied to the existing SMSC without a separate system upgrade to block the spam short message and a storage medium recording the method.

In addition, another object of the present invention is to provide a spam mail blocking method that can minimize the load of the SMSC and a storage medium in which the method is recorded.

It is still another object of the present invention to provide a spam mail blocking method and a storage medium in which the subscriber can selectively block or resume reception of spammy short messages.

1 is an exemplary diagram for explaining a spam mail blocking method in the Internet.

2 is a schematic SMS transmission system of a mobile communication network.

3 is a flowchart illustrating a control short message generation process of an SMSC according to a preferred embodiment of the present invention.

4 is an exemplary diagram illustrating a message form of a control short message according to a preferred embodiment of the present invention.

5 is a flowchart illustrating a process of blocking a sparse short message using a control short message according to an exemplary embodiment of the present invention.

In order to achieve the above object, according to a preferred embodiment of the present invention, in a method for blocking a sparse short message executed in a mobile communication system including an SMSC and a plurality of mobile communication terminals, executed in the SMSC, SMS Generating a control short message including a spam command and a spam keyword, selecting a mobile communication terminal to transmit the control short message among the plurality of mobile communication terminals, and transmitting the control short message to the selected mobile communication terminal; An SMSC processing step and a step of receiving the control short message transmitted from the SMSC through a mobile communication network, an SMS spam command and a spam keyword extracting step from the received control short message, and corresponding to the SMS spam command Move the spam keyword by Performing a control short message processing process of registering or deleting a spam short message table in a new terminal; checking whether the newly received short message is a spam short message with reference to the spam short message table; and A method for blocking a spammy short message, comprising the step of processing a mobile communication terminal comprising the step of blocking if the spammy short message is provided.

According to another preferred embodiment of the present invention, in a method for blocking a spam short message executed in a mobile communication terminal including a spam keyword table in which a spam keyword is stored, receiving a short message from a short message center through a mobile communication network; Determining whether the short message is a control short message including an SMS spam command and a spam keyword, and if the short message is a control short message, extracting an SMS spam command and a spam keyword from the control short message; Registering the spam keyword in the spam keyword table corresponding to an SMS spam command, extracting a full text from the short message if the short message is not a control short message as a result of the determination; See the above me Searching for a spam keyword in a message message; if the search result spam keyword exists, blocking the short message; and if the search result spam keyword does not exist, normalizing the short message; Provided is a method for blocking a spam short message generated by an SMSC (Short Message Service Center) and a storage medium in which the method is recorded.

In addition, according to another preferred embodiment of the present invention, in a method for blocking a sparse short message executed in a short message center (SMSC) coupled through a plurality of mobile communication terminals and a mobile communication network, SMS spam commands and spam keywords Receiving a message; generating a control short message including the SMS spam command and the spam keyword; selecting a target terminal to which the control short message is to be transmitted among the plurality of mobile communication terminals; A method for blocking sparse short messages comprising transmitting a control short message is provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic diagram of an SMS transmission system of a mobile communication network. SMSC (Short Message Service Center) 160 is a system that performs a short message transmission function between mobile communication terminals such as mobile phones, and is coupled to a mobile communication network or a TCP / IP network. The SMSC 160 processes the short message transmitted from the mobile communication terminal of the user who is connected to the mobile communication network in cooperation with the switching center 140 and the HLR / VLR (not shown). In addition, the SMSC 160 is combined with the TCP / IP network through IWF / PCF / PDSN (not shown), and also processes SMS transmitted from a computer connected to the TCP / IP network.

Devices for transmitting a short message to a mobile communication terminal include a mobile phone 100, an IS-95 * terminal 300 and a personal computer 320. The short message sent from the mobile phone 100 and the IS-95 * terminal 300 is delivered to the SMSC 160 through the mobile communication network composed of the base station 120 and the switching center 140, and the SMSC 160 is designated by the sender. Send a short message to the recipient's mobile phone. The short message transmitted from the personal computer connected to the TCP / IP communication network 200 is transmitted to the SMSC 160 through the TCP / IP communication network 200 and the IWF / PCF / PDSN. Here, the IS-95 * terminal 300 is a kind of wireless modem that performs only a short message transmission, and is mainly used in connection with a personal computer. Hereinafter, a process of generating and transmitting a control short message executed in the SMSC 160 will be described in detail.

3 is a flowchart illustrating a control SMS generation process of an SMSC according to a preferred embodiment of the present invention.

Referring to FIG. 3, in step 330, the SMSC 160 automatically selects a spam keyword that can identify an advertising short message or an adult short message (hereinafter, collectively referred to as a 'sempty short message') or an administrator selects a spam keyword. Enter the selected spam keyword. Here, one or more spam keywords may be selected, and when selecting a plurality of spam keywords, the number of spam keywords that can be transmitted in one control short message is one transmission limit of a short message (80 bytes) and the number of spam keywords. It is determined by the size. The spam keyword is any one of letters, numbers, or a combination of letters and numbers that can identify a spam short message. For example, 'adult', 'advertisement', '700-', '600-' or a specific telephone number may be a spam keyword.

The method of automatically selecting a spam keyword executed in operation 330 can be variously implemented, and a process of selecting a specific telephone number as a spam keyword will be described. In the case of sending a short short message using the IS-95 * terminal 300, the short short message is sent in a large amount. Therefore, if a large number of short messages are received from the same sender within a predetermined time, the SMSC 160 sends a caller's phone number. Alternatively, the phone number included in the short message may be selected as a spam keyword.

A large number of spammy short messages are mostly sent using IS-95 * terminal 300 or personal computer 320. In particular, the IS-95 * terminal 300 is a mobile phone which has substantially eliminated the voice call function and has a unique telephone number. Therefore, when a large number of short messages are sent from a mobile phone of a specific telephone number, that is, an IS-95 * terminal, the SMSC 160 may select the telephone number as a spam keyword.

In addition, the SMSC 160 may extract a sample from a short message requested to be sent in large quantities from the same sender, and select a specific word, a phone number, an Internet address, etc. included in the short message as a spam keyword.

However, since a large amount of messages may be transmitted within a predetermined time even if the message is not a short message, the selected spam keyword may be deleted if it is determined that the message is not a short message. The deletion process of the selected spam keyword is the same as the control short message generation process for registering the spam keyword, and thus a separate description thereof will be omitted.

In step 332, the SMSC 160 generates a control short message that includes the selected spam keyword. The structure of the control short message is shown in FIG. The control short message 350 is composed of a teleservice ID 352 that the mobile communication provider separately designates, an SMS spam command 354 and a spam keyword 356 which are processing instructions for the spam keyword included in the control short message. The SMS spam command 354 is either 'registered' or 'delete', and is a command for registering or deleting the corresponding spam keyword in the spam keyword table in the mobile communication terminal. When the SMS spam command 354 is 'delete', the spam keyword registered by the user in the spam keyword table may be deleted by the control short message. Therefore, the SMSC 160 provides only spam keywords that can be an accurate criterion for determining the spamness, and does not provide or remove spam messages that have a high possibility of conflict with the user-selected spam keywords. desirable. When a plurality of spam keywords are selected, it is preferable to distinguish each spam keyword by using a predetermined delimiter (',', '.', ';', ':', Etc.).

In step 334, the SMSC 160 selects a target mobile communication terminal to receive the generated control short message. The selection criterion of the target mobile communication terminal is whether to apply for a spam short message blocking service by the SMSC and / or whether or not at least one spam keyword included in the currently generated control short message has already been received. In general, the plurality of SMSCs 160 manage each of a plurality of mobile communication terminals. Therefore, each SMSC 160 extracts a user who applied for the spam short message blocking service among mobile communication terminals managed by the SMSC 160 from its own database or a user database of the mobile communication system.

In step 336, the SMSC 160 transmits the generated control short message to the selected mobile communication terminal. Hereinafter, a process of the mobile communication terminal receiving the control short message will be described in detail.

5 is a flowchart illustrating a spam keyword registration / deletion process using a control short message and a spam message blocking process using the same according to an embodiment of the present invention.

Referring to FIG. 5, a spam keyword registration / deletion process using a control short message will first be described. In step 400, the mobile communication terminal receives a short message transmitted from the SMSC 160 via the mobile communication network. The description of the short message transmission process through the mobile communication network and the physical and logical systems and protocols used therein will be omitted.

In step 402, the mobile communication terminal determines whether the received short message is a control short message by searching for whether a teleservice ID or SMS spam command is included in the full text of the received short message. If the received short message is a control short message, the spam keyword registration / deletion process proceeds to step 408, and if it is a general short message, proceeds to step 430.

In addition, since the spam keyword can also be registered by the user, in step 404 to step 406, the user executes the SMS UI using the user interface (hereinafter, abbreviated as 'UI') of the mobile communication terminal.

In step 408, the SMS spam command and spam keyword included in the control short message are extracted. When a plurality of spam keywords are included, each spam keyword is classified and extracted by a predetermined delimiter (',', '.', ';', ':', Etc.). In addition, when a user inputs a spam keyword through the SMS UI, the entered letter, number, or a combination of letters and numbers is regarded as a spam keyword extracted from the control short message. In another embodiment, an indicator for distinguishing the spam keyword extracted from the control short message and the spam keyword input by the user may be added to the spam keyword, or the division field may be included in the spam keyword table.

In step 410, it is determined whether the extracted SMS spam command is a 'register' command. In the case of a 'register' command, the process of registering a spam keyword / deleting proceeds to step 412 and, in the case of a 'delete' command, proceeds to step 414.

In step 412, the extracted spam keywords are recorded in the spam keyword table 440. Here, the spam keyword table 440 preferably records the spam keywords in a lexical order. In addition, in order to prevent the spam keyword registered by the user from being deleted by the control short message, the spam keyword table 440 may include a division field for identifying the subject who registered the spam keyword for each spam keyword. Can be.

Step 414 is an optionally implementable step. In another embodiment, step 416 may be executed after step 410. In step 414, it is determined whether the user has registered the spam keyword to be deleted. If the user has registered a spam keyword, the spam keyword registration / deletion process proceeds to step 418, otherwise, the process goes to step 416.

In step 416, the spam keyword extracted from the control short message is deleted from the spam keyword table.

In operation 418, a confirmation information request message is output through the SMS UI or the user UI of the mobile communication terminal. Subsequently, in step 420, when the confirmation information that may be deleted from the user is input, the corresponding spam keyword is deleted. If the confirmation information is not input or the deletion prohibition confirmation information is input, the spam keyword registration / deletion process is terminated.

Next, a process of blocking a short message using the spam keyword table will be described.

In step 430, if the received short message is not the control short message, the full text of the short message is extracted.

In operation 432, the spam keyword table 440 is used to determine whether the spam keyword is included in the full text of the extracted short message. The determination of whether to include the spam keyword is preferably performed on a word basis. If the short message includes the spam keyword, the spam short message blocking process proceeds to step 436. If the spam keyword is not included, the spam short message blocking process proceeds to step 434.

In step 434, when the short message does not include the spam keyword, a new short message is output through the user UI or the SMS UI, and the short message is stored in the general short message storage area 460.

In step 436, the short message includes the spam keyword, and the short message is stored in the block short message area 450.

As described above, according to the present invention, it is possible to effectively block the spam-like short message through the interaction between the SMSC and the mobile communication terminal.

In addition, it is possible to easily apply to the existing SMSC without the need for a separate system upgrade to block the spam short messages sent to the subscriber, the load of the SMSC can be minimized.

In addition, the subscriber may directly enter a spam keyword, which allows the subscriber to directly block the spam short message.

In the above, a preferred embodiment of a method for blocking a short message using a control short message according to the present invention has been described in detail, but the content is not limited to the field of the present invention described in the following claims, and In order to apply to the Internet mail server / personal terminal which is a similar field to the present invention, it is possible to implement a technology for blocking spam mail. In addition, in the art, it will be apparent to those skilled in the art that various changes or modifications are made within the scope of the present invention.

Claims (10)

In the method for blocking a sparse short message executed in a mobile communication system comprising an SMSC and a plurality of mobile communication terminal, Runs on the SMSC, Generating a control short message including an SMS spam command and a spam keyword, Selecting a mobile communication terminal to transmit the control short message from among the plurality of mobile communication terminals, and SMSC processing step of transmitting the control short message to the selected mobile communication terminal; And Is executed in the mobile communication terminal, Receiving the control short message transmitted from the SMSC through a mobile communication network, SMS spam command and spam keyword extraction step from the received control short message, Performing a control short message processing procedure of registering or deleting the spam keyword in the spam keyword table in the mobile communication terminal corresponding to the SMS spam command; Checking whether the newly received short message is a spam short message by referring to the spam keyword table, and If the new short message is a sparse short message, blocking the sparse short message using a control short message comprising the step of blocking a mobile communication terminal. A method of blocking a spam short message executed in a mobile communication terminal including a spam keyword table having a spam keyword stored therein, Receiving a short message from a short message center through a mobile communication network; Determining whether the short message is a control short message including an SMS spam command and a spam keyword; If the short message is a control short message, extracting an SMS spam command and a spam keyword from the control short message; Registering the spam keyword in the spam keyword table corresponding to the SMS spam command; Extracting a full message from the short message if the short message is not a control short message as a result of the determination; Searching for a spam keyword in the full message by referring to the spam keyword table; Blocking the short message if a spam keyword exists as a result of the search; And If the search keyword does not exist, including the step of normal processing the short message, The control short message is a method for blocking a sparse short message using a control short message generated by the SMSC. The method of claim 2, The method for blocking sparse short messages using a control short message including a spam keyword included in the control short message and the spam keyword pre-entered by the user. The method of claim 2, The control short message is a method for blocking spam short messages using a control short message containing a plurality of spam keywords. The method of claim 2, The SMS spam command is a method of blocking spam short messages using a control short message which is any one of registration and deletion. The method of claim 5, And deleting the spam keyword from the spam keyword table corresponding to the SMS spam command. The method of claim 6, Deleting the spam keyword from the spam keyword table in response to the SMS spam command, Searching for the spam keyword in the spam keyword table; If the spam keyword is registered in the spam keyword table, checking whether the spam keyword is registered by a control short message; Deleting the spam keyword from the spam keyword table if it is a spam keyword registered by the control result short message; Outputting a screen for receiving a user's selection command through a user interface of the mobile communication terminal when the check result is a spam keyword registered by the user; And And deleting the spam keyword from the spam keyword table if a deletion confirmation is input from the user. In the method for blocking a sparse short message executed in a short message center (SMSC) coupled through a plurality of mobile communication terminals and a mobile communication network, Receiving an SMS spam command and a spam keyword; Generating a control short message including the SMS spam command and the spam keyword; Selecting a target terminal to transmit the control short message from among the plurality of mobile communication terminals; And The method of claim 1, further comprising the step of transmitting the control short message to the selected target terminal. The method of claim 1, Selecting a target terminal to which the control short message is to be transmitted from among the plurality of mobile communication terminals, Blocking a sparse short message using a control short message is installed in the plurality of mobile communication terminals, and a step of selecting a mobile communication terminal that does not receive a control short message including the spam keyword as a target terminal. Way. In order to determine whether a newly received short message is a spam short message by using the spam keyword included in the control short message received from the SMSC, and to perform a method of executing a corresponding blocking action in case of the spam short message. A recording medium in which a program executable by a digital processing apparatus is tangibly embodied and can be read by a digital processing apparatus, Receiving a short message from a short message center through a mobile communication network; Determining whether the short message is a control short message including an SMS spam command and a spam keyword; If the short message is a control short message, extracting an SMS spam command and a spam keyword from the control short message; Registering the spam keyword in the spam keyword table corresponding to the SMS spam command; Extracting a full message from the short message if the short message is not a control short message as a result of the determination; Searching for a spam keyword in the full message by referring to the spam keyword table; Blocking the short message if a spam keyword exists as a result of the search; And And a program that is tangibly embodied in a program that can be executed by a digital processing apparatus that executes the step of normally processing the short message if a search keyword does not exist.