KR100259270B1 - Mobile communication system having auto-dialing of local number and method thereof - Google Patents

Abstract

PURPOSE: A mobile communication system having an automatic area code advance dialing function and a method thereof are provided to send an area code corresponding to a cell, in which a mobile terminal is located, to the mobile terminal so that the area code can automatically be dialed in advance. CONSTITUTION: If a user turns on the power of a mobile terminal(ST11), a microprocessor in the mobile terminal catches the information of a base station that it belongs to, reads its subscriber identification stored in a subscriber identification storage part, and sends it to the base station(ST12). If the mobile terminal is processed as an available state through the authentication procedures of the base station(ST13), the mobile terminal receives an area code data signal from the base station through an antenna and supplies it to the microprocessor(ST14). The microprocessor stores the area code data in a data storage part(ST15). Then the microprocessor judges whether a key input from a keypad is detected(ST16). If the input of the "SEND" key is detected, the microprocessor reads the area code data stored in the data storage part and executes the dialing of a telephone number inputted through the keypad after dialing the area code first(ST17).

Description

Mobile communication system with area code automatic sun dialing and its method

The present invention relates to a mobile communication system, and in particular, by sending an area code corresponding to a cell in which a mobile terminal is located to a mobile terminal, an area code automatic sundial function that allows the area code to be dialed first when a mobile terminal is dialed The present invention relates to a mobile communication system and a method thereof.

At present, with the rapid development of communication technology, a mobile communication system that allows a user to make a call while moving from an arbitrary place or from one place to another has become popular.

1 is a block diagram schematically showing the configuration of the mobile communication system.

In FIG. 1, reference numeral 1 denotes a detailed configuration through FIG. 2 as a mobile terminal which an individual carries and communicates with, an antenna 11 for data transmission and reception, and an RF signal received through the antenna 11. RF signal processing section 12, RF signal processing section 12 and the following to demodulate and amplify and output a transmission signal applied from the baseband conversion section 13, that is, ISK signal, for example, GMSK, to be described later. A baseband converter 13 is provided to perform digital-to-analog conversion and analog-to-digital conversion processing on signals transmitted and received between the digital signal processing processor 16, the speaker 14, and the microphone 15. In addition, the speaker 14 for outputting the voice signal received from the baseband conversion unit 13 as an audible sound, the microphone 15 for converting the user's voice input into an electrical signal, the coding or decoding of the voice signal and multiplexing Is provided with: (Digital Signal Processor, DSP 16) performs the equalizer in order to remove noise, and a digital signal processor for performing an audio-related data processing capability.

In addition, the microprocessor 17 for controlling the overall device is provided, which controls the RF signal processing unit 12 and the DSP 16 or interleaving and block coding for data transmitted and received and COnvolution Coding is executed.

And a subscriber information storage unit (SIM) 18 storing subscriber registration data, a program memory 19 storing a function of a terminal and protocol software for processing messages transmitted and received by the network. Keypad 20 composed of keys and various function keys, LCD display unit 21 for displaying the operating state of the terminal, data storage unit 22 serving as a data buffer when the terminal operating program is executed, telephone number, etc. And an information storage unit (E ² PROM) 23 in which local information related to the telephone is stored non-volatile.

In addition, in FIG. 1, reference numerals 2 (2 _{1 to} 2n) identify positions of the plurality of mobile terminals 1, transmit and receive radio signals to the mobile terminal 1, convert communication protocols, encrypt / demodulate, etc. 3 (3 _{1 to} 3n) manages a plurality of base stations (2: 2 _{1 to} 2n), and allocates and controls handover of communication channels for each mobile terminal (1). A base station controller (BSC) that performs functions such as determination.

In addition, reference numeral 4 is a switch to form a public switched telephone network (PSTN) by processing the call request of the general wired terminals, 5 is for temporarily storing the registration information for each terminal (1) from the various base stations (2) Visitor Location Register (VLR).

In addition, reference numeral 6 stores an identification number for each mobile terminal 1 accommodated, such that the exchange 4 can execute a license for an arbitrary mobile terminal 1, etc. (AuC) 7 denotes a Home Location Register (HLR) in which registration information of each mobile terminal 1 already registered is stored.

That is, in the mobile terminal 1 having the above configuration, when the user turns on the power of the mobile terminal 1, the microprocessor 17 sequentially increases or decreases the demodulation frequency of the RF signal processor 12 while the antenna is turned on. In addition to searching the wireless carrier received through (11), the base station 2 to which it belongs is identified based on the level of each demodulated signal input.

At this time, the microprocessor 17 stores the control data for controlling the demodulation signal and the level value of the received reception data in the data storage 22, and sets the demodulation frequency based on the reception frequency having the largest level value. Done.

Then, the microprocessor 17 receives the broadcast channel (BCCH) from the base station 2, grasps the information of the base station, and stores its subscriber information stored in the subscription information storage unit 18 according to the LAPDm protocol. The registration procedure is performed by reading and transmitting the information to the base station.

On the other hand, when the base station 2 receives the terminal information from the mobile terminal 1, the base station controller 3 transmits the terminal information to the base station controller 3, and the base station controller 3 transmits the terminal information through the exchange 4 to the visited subscriber location register. (5) and then temporarily stored in the transmission through the GSM network to the authentication center (6) and the authentication center (6) to check whether the terminal 1 is properly registered in the home subscriber location register (7). do.

After that, if it is determined that the mobile terminal 1 is normally registered, the base station controller 3 can use the mobile terminal 1 by transmitting an encryption code or the like to the mobile terminal 1 through the base station 2. It will register as a state.

On the other hand, the microprocessor 17, in the state that the registration process of the mobile terminal 1 is completed, whether a paging channel is received from the base station 2, the user operates the keypad 20, the base station 2 It is detected whether a transmission request (call request) is made or a handover command is received from the base station 2.

Therefore, when the call channel is received, the call response is executed to the base station 2 and the alarm signal output unit of the terminal is driven to alert the user that there is a call from another terminal. If there is a request, after detecting a key input from the keypad 20, the access request is executed by sending a random access channel (RACH: Random Access Channel) to the base station (2).

In this case, after an access grant channel (AGCH) is received from the base station 2 or after executing a call response, a call is made between the user and the user of another terminal by transmitting and receiving a voice signal through an assigned time slot. To make it possible.

However, in the above mobile communication system, when the user calls through the mobile terminal, the user inputs a telephone number through the keypad 20 of the mobile terminal, where the mobile terminal is located in a jurisdiction cell or another cell. No matter where you are or where you are located, you must enter the area code and then the phone number you want to call.

Therefore, the dialing operation described above is very cumbersome for a user who is accustomed to dialing only a telephone number in the same area.

Accordingly, the present invention was created in view of the above circumstances, and the area code corresponding to the cell in which the mobile terminal is located in the mobile communication system is transmitted to the mobile terminal so that the area code can be dialed first during the dialing operation of the mobile terminal. It is an object of the present invention to provide a mobile communication system and method thereof having an automatic area dialing function.

1 is a block diagram schematically showing the configuration of a mobile communication system.

FIG. 2 is a block diagram showing the configuration of the mobile terminal 1 shown in FIG.

Figure 3 is a block diagram showing the configuration of a mobile communication system having an area code automatic sundial function according to an embodiment of the present invention.

Figure 4 is an area code automatic sundial method of a mobile communication system according to an embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

1: the mobile terminal 2 (2 ₁ ~2n): the base station (BTS)

3 (3 _{1 to} 3n): Base station controller (BSC) 4: Switching station (MSC)

5: Visitor Location Register (VLR) 6: Certification Center (AuC)

7: Home Subscriber Position Register (HLR) 11: Antenna

12: RF signal processing unit 13: baseband conversion unit

14: speaker 15: microphone

16: DSP (Digital Signal Processor)

17, 40: microprocessor 19: program memory

18: Subscriber Identy Module (SIM)

20: keypad 21: LCD display

22, 39: data storage unit 23: information storage unit

31: network interface 32: code conversion unit

33: time switch 34: base station interface

35: network synchronizer 36: processor interface unit

37: control unit

A mobile communication system having an area code automatic sundialing function according to the present invention for realizing the above object is a network interface for performing a matching function with a communication switching network (PSTN, PSPDN), code for performing conversion / inverse conversion into PCM data. Conversion unit, time switch connecting local calls between subscribers, base station interface providing communication path with base station, area code data storing area code corresponding to cell under each base station When information data for authentication of a mobile terminal is received from a storage unit or an arbitrary base station, the area code data corresponding to the cell of the base station in which the mobile terminal is located is read from the area code data storage unit to the base station that manages the mobile terminal. It characterized in that it comprises a control unit for controlling the transmission.

In addition, the area code automatic sundialing method of the mobile communication system according to the present invention includes an authentication data receiving step of determining whether information data for authentication of a mobile terminal is received from a base station that manages a cell where an arbitrary mobile terminal is located. Area code reading step of reading the area code data corresponding to the cell where the mobile terminal sending the authentication data is located, Area code sending step of sending the read area code data to the corresponding base station, Area code sent from the base station Receiving area code to receive data from the mobile terminal, storing area code to receive the received area code data, dialing key input step to judge whether there is key input for dialing command, key of dialing command with phone number If there is an entry, dial the stored area code first, then Characterized in that configured including dialing execution step of dialing a number.

According to the present invention having the above-described configuration, when a mobile terminal is located in an arbitrary cell and sends information data for authentication to a base station that manages the cell, the base station transmits the information data to the base station controller. The area number corresponding to the cell where the mobile terminal is located is transmitted to the mobile terminal through the base station.

Then, the mobile terminal receives and stores the area code transmitted from the base station. When the user dials the phone number, the mobile terminal first dials the received area code and then dials the phone number.

Therefore, the cumbersome operation of dialing the area code is omitted, thereby improving user convenience.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 3 is a block diagram showing the configuration of a mobile communication system having an area code automatic sundialing function according to an embodiment of the present invention. The same reference numerals are assigned to parts performing the same function as that of FIG. Detailed description will be omitted.

First, FIG. 3A illustrates a configuration of a base station controller in a mobile communication system according to the present invention. In FIG. 3A, reference numeral 31 denotes a network interface performing a matching function with a communication switching network (PSTN, PSPDN). 32 is, for example, a transcoder for converting / inverting between 32 Kbps ADPCM data and 64 Kbps PCM data, and 33 is a time switch for connecting a local call between subscribers accommodated in the base station controller 3. to be.

Also, reference numeral 34 denotes a base station interface (RPIF: Radio Port InterFace) that provides a communication path between the base station 2 and the base station controller 3, and 35 extracts a clock from the matched communication path and distributes the clock to each device. 36 is a processor interface unit that performs an interface function of the communication path between the control unit 37 and each device, which will be described later.

Reference numeral 37 denotes an area code data storage unit for storing an area code corresponding to a cell controlled by each base station, and reference numeral 38 denotes a call processing for generating, monitoring and releasing a call by a message signal from each device. A main processor controller that performs a function or performs a function of classifying and transmitting voice (32 Kbps / 16 Kbps), ISDN, data, etc. according to the service type of wireless management information. Particularly, authentication of a mobile terminal from an arbitrary base station When the information data for the mobile station is received, the area code data corresponding to the cell of the base station in which the mobile terminal is located is read from the area code data storage unit and transmitted to the base station in charge of the mobile terminal.

In addition, Figure 3b shows the configuration of a mobile terminal in a mobile communication system according to the present invention, reference numeral 39 in Figure 3b is a data stored in the area code data transmitted from the base station 2 received through the antenna 11 The storage unit 40 is a key input for dialing command together with the phone number through the keypad 20, the number data stored in the data storage unit 38 is read out and dialed first, and then the key input. Is a microprocessor that controls dialing of a phone number.

Next, the operation of the device having the above-described configuration will be described with reference to the flowchart shown in FIG.

First, when the user turns on the power of the mobile terminal 1 (step ST11), the microprocessor 40 of the mobile terminal sequentially increases or decreases the demodulation frequency of the RF signal processing unit 12 to turn the antenna 11 on. In addition to searching for a wireless carrier received through the base station 2 to which it belongs based on the level of each demodulated signal inputted.

At this time, the microprocessor 40 stores the control data for controlling the demodulation signal and the level value of the received reception data in the data storage unit 39 and sets the demodulation frequency based on the reception frequency having the largest level value. Done.

Then, the microprocessor 40 receives the broadcast channel (BCCH) from the base station 2, grasps the information of the base station, and stores its subscriber information stored in the subscription information storage unit 18 according to the LAPDm protocol. The registration procedure is performed by reading and transmitting the information to the base station (step ST12).

On the other hand, when the base station 2 receives the authentication data information of the terminal from the mobile terminal 1 (step ST1), it transmits it to the base station controller 3, and the base station controller 3 transmits the terminal information to the exchange 4 After temporary storage in the visitor location register (5) through the network, and transmits to the authentication center (6) through the GSM network, the authentication center (6) is the terminal 1 to the home subscriber location register (7) You will be asked to confirm that you are legally registered.

After that, if it is determined that the corresponding mobile terminal 1 is normally registered (step ST3), the base station controller 3 sends an encryption code or the like to the mobile terminal 1 through the base station 2, thereby transmitting the corresponding mobile terminal 1. ) Is registered as available (ST4 step).

In addition, when the authentication data information of the mobile terminal 1 is received from the base station 2, the control unit 37 of the base station controller 3 is located in the mobile terminal 1 from the area code data storage unit 37 The area code data corresponding to the cell is read out and code-transformed through the code conversion unit 32 to be transmitted to the base station 2 having jurisdiction over the mobile terminal 1 (ST5 to ST6). Therefore, the base station 2 wirelessly transmits the area code data transmitted from the base station controller 3 to the corresponding mobile terminal 1.

On the other hand, the mobile terminal 1 processed in the usable state through the authentication process (step ST13) receives the area code data signal wirelessly transmitted from the base station 2 through the antenna 11, and the antenna ( The area code data signal received through 11) is converted into, for example, an IQ signal through the RF processor 12, and converted into a digital signal through the baseband converter 13 and applied to the microprocessor 40 (ST14). step).

Accordingly, when the area code data is applied, the microprocessor 40 stores the data in the data storage 39 (step ST15). Then, the microprocessor 40 determines whether there is a key input through the keypad 20. For example, the key input of the "SEND" key to dial the telephone number together with the telephone number through the keypad 20 is determined. In step (ST16), the area code data stored in the data storage unit 39 is read and dialed first, and then the phone number input through the keypad 20 is dialed (step ST17).

When the call connection is established with the counterpart terminal after executing the dialing, the microprocessor 40 performs the normal control process for the call and ends (ST18).

Further, in the step ST16, if the key input via the keypad 20 is not a key input related to dialing but a key input for executing another function, the microprocessor 40 executes a normal control process for executing the selected function. (ST19).

That is, according to the embodiment, when a user dials a telephone number through a mobile terminal in order to make a call in the mobile communication system, the telephone number inputted together with the area code where the mobile terminal is located is dialed.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, according to the present invention, it is possible to realize a mobile communication system and method having an area code automatic sun dialing function, which is capable of automatically sun dialing an area code in which a mobile terminal is located.

Claims (2)

Network interface that performs matching function with communication switch network (PSTN, PSPDN), Code conversion unit for converting to PCM data / inverse conversion, A time switch connecting the local call between the subscribers, A base station interface providing a communication path with a base station, An area code data storage unit for storing an area code corresponding to a cell controlled by each base station, When the information data for authentication of the mobile terminal is received from any base station, the area code data corresponding to the cell of the base station in which the mobile terminal is located is read from the area code data storage unit and transmitted to the base station in charge of the mobile terminal. A mobile communication system having an area code automatic sun dialing function, comprising a control unit. An authentication data reception step of determining whether information data for authentication of the mobile terminal is received from a base station that manages a cell where an arbitrary mobile terminal is located; An area code reading step of reading area code data corresponding to a cell in which the mobile terminal which has transmitted the authentication data is located; An area code transmission step of transmitting the read area code data to the corresponding base station; An area code receiving step of receiving, by a corresponding mobile terminal, area code data transmitted from the base station; Area code storage step of storing the received area code as data, A dialing key input step of determining whether there is a key input for a dialing command, And a dialing execution step of dialing the stored area code first and then dialing the phone number if there is a key input of a dialing command together with the phone number.

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