KR20050004415A - Call setup method by using character on the mobile telecommunication network - Google Patents

Abstract

PURPOSE: A call connection method using texts in a mobile communication network is provided to make a call connection request to a terminating terminal with text input only by searching for a digit number corresponding to an inputted destination identification text that indicates the terminating terminal, finding out the location information of the number, and making a call connection with the terminating terminal. CONSTITUTION: An originating MS(Mobile Station) transmits a call connection request, including a destination identification text, to an MSC through a BTS/BSC(S10). The MSC, receiving the call connection request, searches a text identification number DB to judge whether the destination identification text contained in the call connection request data exists among the previously stored data(S20). In case that the destination identification text contained in the call connection request data exists in the text identification number DB, the MSC searches the text identification number DB again to check whether a digit number matched with the destination identification text exists(S30). If a matched digit number exists, the MSC sends the obtained number to an HLR, finds out the location information of the digit number, and transmits a call request signal to another MSC associated with the location information. The terminating MSC makes a call connection to a terminating MS corresponding to the digit number(S40).

Description

CALL SETUP METHOD BY USING CHARACTER ON THE MOBILE TELECOMMUNICATION NETWORK}

The present invention relates to a call connection method in a mobile communication network, and to a call connection method using a character in a mobile communication network so that a call can be connected by a character input such as Korean or English instead of a called number.

At present, the mobile communication network must input the incoming telephone number of the key button to request a call connection from the calling terminal to the called terminal. Accordingly, the subscriber registers and stores the telephone number in the internal memory of the terminal, and then selects the telephone number to make a call. However, if the phone number is not registered in the terminal as described above, the subscriber must press the phone number manually to make a call. In addition, if the phone number is not known, the subscriber can find out the phone number of the called party and call or know. If you found a missing or incorrect number, you could not make a call.

An object of the present invention is to input a caller identification character indicating the called party terminal in the calling mobile communication terminal and to request a call connection in order to solve the problems of the prior art as described above, search for the corresponding caller identification character and correspond to the searched characters By re-searching the numeric number to find the location information of the corresponding number and making a call connection with the called terminal, the subscriber requests a call connection with the called terminal without text memorizing or registering and storing it in the terminal. In this possible mobile communication network, a call connection method using text is provided.

In order to achieve the above object, the present invention provides a method for requesting a call connection including an incoming call identification character from an arbitrary mobile communication terminal, and receiving a call connection request through a base station at an exchange of a system. Retrieving the caller identification character from the prestored data, retrieving a numeric number matching the retrieved character at the exchange, passing the retrieved numeric number to the home location register, and converting at the home location register and the exchange. Connecting to the called terminal by the incoming call of the number number.

1 is a schematic configuration diagram of a mobile communication network to which the present invention is applied;

2 is a view showing a mobile communication terminal used in the present invention,

3A and 3B are diagrams illustrating a conventional call request protocol and a character support protocol included in a call of the present invention;

4 is a flowchart illustrating a call connection method using text in a mobile communication network according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10, 80: mobile communication terminal

20, 70: BTS / BSC

30, 60: MSC / VLR

40: HLR / AC

50: alphanumeric number matching database (DB)

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

1 is a schematic configuration diagram of a mobile communication network to which the present invention is applied and includes a mobile station (MS) 10 and 80 and a base station transceiver subsystem / BSC (base station controller) (BTS). 20, 70), Exchange / Visitor Location Register (MSC: Mobile Switching Center / VLR: Visitor Location Register) (30, 60), Character Identification Number Database (DB) (40), Home Locator / Authentication Center (HLR: Home) Location Register / AC (Authentication Center) 50, etc. The mobile communication terminals (MSs) 10 and 80 are terminals capable of requesting a call connection by inputting characters (Korean, English, etc.), and the base station (BTS) ( 20, 70). The information of the mobile communication terminal (MS) 10, 80 is transmitted to the exchange (MSC) 30, 60 via the base station / base station controller (BTS / BSC) 20. Information transmitted from the exchange (MSC) 30, 60 is transmitted to the mobile communication terminal (MS) 10, 80 via the base station / base station controller (BTS / BSC) 20, 70.

In addition, the mobile communication terminal (MS) 10 of the present invention is provided with a button 14 for selecting a character type (Korean, English, Japanese, etc.) in addition to the general key button 12 as shown in FIG. When the button 14 is turned on and a corresponding character is inputted, the selected type of character is displayed on the display 16 such as an LCD. For example, if the Korean character is selected as the character type with 14 buttons and the Korean character and the Hong Gil Dong are input with the other key buttons 12, the Hong Gil Dong character is displayed on the display 16.

The base station (BTS) 20, 70 connects the mobile communication terminal (MS) 10, 80 to the base station controller (BSC) 20, 70 to perform wireless communication with the mobile communication terminal (MS) 10, 80. A wired / wireless conversion function for performing wired communication with the base station controller (BSC) 20, 70 is performed.

The base station controller (BSC) 20, 70 connects the base station (BTS) 20, 70 to the exchange (MSC) 30, 60 to coordinate the connection between the base stations (BTS) 20, 70, and the base station ( BTS) (20, 70) and the exchange (MSC) (30, 60) for the signal processing function.

The exchange (MSC) 30, 60 connects a call when the subscriber makes or receives a call and establishes a call of the mobile communication terminal (MS) 10, 80 by connecting with a base station controller (BSC) 20, 70. And release functions, perform various functions related to call processing and additional services, and perform interworking with other networks. The exchange (MSC) 30, 60 of the present invention characterizes the incoming identification character in the call connection request data transmitted from the mobile communication terminal 10, 80 through the base station / base station controller (BTS / BSC) 20, 70. Search in the identification number DB (40), search for a numeric number that matches the searched character, and transfer the searched numeric number to the home location register (HLR) 50 and the corresponding number passed from the home location register (HLR) 50 The call connection with the called-party mobile terminal is performed according to the location information of the number.

The character identification number DB 40 is a database in which the incoming identification character and the numeric number corresponding thereto are registered and stored. For example, Hong Gil-dong is a database in which 011-XXX-XXXX and KBS are stored in 02-XXX-XXXX. Here, the character identification number DB 40 must register its character identification number when a service user subscribes to the service, and must register after searching for the same character identification number because the same character cannot be subscribed.

Visitor location registers (VLRs) 30 and 60 are databases that store information of visited subscribers in the areas served by the exchanges (MSCs) 30 and 60. In order to prevent the inquiry, information of the mobile communication terminals (MS) 10 and 80 and the subscriber registered in the area in which they are in charge is taken from the home location register (HLR) 50 and temporarily stored.

The home location register (HLR) 50 is a database (DB) that stores permanent information of the mobile communication terminals (MSs) 10 and 80, subscribers, location information, additional service information, and the like. It interacts with the MSCs 30 and 60 to perform various functions related to call processing and supplementary services and to control services. The home location register (HLR) 50 of the present invention finds and provides the location information of the incoming call to the MSCs 30 and 60 at the request of the MSCs 30 and 60.

The authentication center (AC) 50 is an element responsible for authenticating subscribers, and in addition to basic subscriber authentication (telephone number, ESN authentication) using the home location register (HLR) 50, accurate subscriber authentication using an authentication key and authentication algorithm. Will be performed.

3A and 3B are diagrams illustrating a conventional call request protocol and a character support protocol included in a call of the present invention.

FIG. 3A illustrates a conventional call request protocol, in which a digit mode for distinguishing a called number consisting of numbers is assigned with 1 bit and a signal of double tone multi frequency (DTMF), 1 ", when 0 is a signal. In case of, it indicates ASCII code, and if the number of bits (CHAR i) of called number is 0, DTMF is 4 bits, and if 1, 8 bits of ASCII code are allocated.

3B illustrates a call request protocol of the present invention, in which a digit mode for distinguishing a called number consisting of numbers or letters is allocated with 2 bits, DTMF for a signal of 0, ASCII code for a signal of 1 ", and" 2 ". Indicates a character (eg Hangul) or Unicode, and the number of bits (CHAR i) of the called number is 4 bits if DTMF is 0, 8 bits if ASCII code is 8, and a character or Unicode is allocated 16 bits.

Therefore, the call request protocol of the present invention adds, as a character support code to the called number, a Unicode or standard Korean code, KSC5601, so that a character code in addition to a number can be processed as a protocol. If the digit mode of the call request protocol is 2, it can be seen that the called number is set to a character code or unicode rather than a number when a call connection request is made by the terminal. That is, in the prior art, the called number was set to '011-XXX-1234', but now the called number can be connected to the called terminal only by 'honggil-dong' instead of the number.

4 is a flowchart illustrating a call connection method using text in a mobile communication network according to the present invention, and the method of the present invention will be described with reference to this.

First, a call connection request including a caller identification character, such as a Hong Gil Dong character, is requested from an originating mobile communication terminal (MS) 10 to a switching center (MSC) 30 through a base station / base station controller (BTS / BSC) 20. (S10)

The exchange (MSC) 30 receives the call connection request, and among the data previously stored in the character identification number DB 40 in the switch (MSC) 30, an incoming identification character included in the call connection request data, for example, 'Hong Gil Dong' Search for the presence of '(S20).

As a result of the search, when the character identification number DB 40 has the character 'Hong Gil Dong', the switching unit (MSC) 30 again searches whether the identification number DB 40 has a numeric number matching the character 'Hong Gil Dong'. S30)

As a result of the search, if there is a numeric number matching the 'Hong Gil-dong' character, the exchanger (MSC) 30 sends the retrieved numeric number to the home location register (HLR) 50 to find the location information of the corresponding numeric number, It sends a call request signal to the exchange (MSC) 60.

The destination side exchange (MSC) 60 connects a call to a destination side mobile communication terminal (MS) 80 corresponding to the call of the number through the base station / base station controller (BTS / BSC) 70 of the corresponding area. (S40)

As described above, according to the present invention, when a caller requests a call connection request by inputting a caller identification character indicating a caller terminal in the calling party mobile communication terminal, the caller ID is searched and the number number corresponding to the searched character is searched again. By searching for the location information of the number and making a call connection with the called terminal, it is possible to request a call connection with the called terminal by simply inputting a text without requiring the subscriber to memorize the phone number or register and store in the terminal.

Claims (2)

In a call connection method in a mobile communication system, Requesting a call connection comprising an incoming identification character from any mobile communication terminal; Receiving a call connection request through a base station at the exchange of the system and retrieving the incoming identification character from pre-stored data of the character identification home location register in the exchange; Retrieving a numeric number matching the retrieved character at the exchange; Delivering the number found in the exchange to a home location register; Connecting to a called terminal with an incoming call of the converted numeric number at the home location register and the exchange; Call connection method using text in mobile communication network. The method of claim 1, The call signaling protocol consisting of the caller identification character is a call connection method using a character in a mobile communication network, characterized in that the destination address includes a Hangul code or a Unicode protocol.