KR20050009389A - A method and a apparatus of supplying clock information for mobile phone - Google Patents

Abstract

PURPOSE: A clock information provision apparatus and a method therefor are provided to display time information by using self-generated clocks and operate additional services, even when a portable terminal gets out of a service area of a base station(BS), resulting in not receive system clock signals, thereby enhancing convenience of the terminal. CONSTITUTION: A RF(Radio Frequency) unit(100) is wirelessly connected to a BS(Base Station) to transmit and receive communication signals including pilot signals and system information signals. A CPU(Central Processing Unit)(110) is connected to the RF unit(100), analyzes signals received therefrom, writes/stores the analyzed result, outputs display, monitors each of function parts, and applies the communication signals to the RF unit(100). An internal clock part(120) is connected to the CPU(110) to generate clock signals under the control of the CPU(110). A memory part(130) is connected to the CPU(110) to store/output various communication information, operation information and time information under the control of the CPU(110). A display member(140) is connected to the CPU(110) to display the communication information, the operation information and the time information under the control of the CPU(110).

Description

A METHOD AND A APPARATUS OF SUPPLYING CLOCK INFORMATION FOR MOBILE PHONE}

The present invention relates to supplying clock information of a mobile terminal. In particular, when the system clock information is not wirelessly received from a mobile communication system, an internal clock is generated to operate its own additional functions except for a communication function and various time information. The present invention relates to a clock information supply apparatus and a method of a portable terminal for displaying a.

The mobile terminal (MS: MOBILE STATION) communicates with the other party anytime and anywhere while moving freely in the service area of the registered system, and receives and receives a synchronization signal through a base station (BS) based on the characteristics of the system operation. The synchronization of the signals to be matched and the system clock is supplied and used as clock information.

Thanks to the development of mobile communication technology, mobile communication service can be provided in other regional countries with one portable terminal, but it can't receive the clock from the system because it leaves the service area during the movement. The mobile terminal that is not supplied with the device is in an inoperative NO service state.

When the portable terminal does not receive the clock information from the system as described above, the mobile communication as well as the function added to the portable terminal, for example, the camera function, phone book function, memo function, a calculator function, such as not using the additional functions In order to solve the problem, there is a need to develop a portable terminal clock information supplying scheme for using an additional function except for mobile communication.

Hereinafter, a clock information supply method of a portable terminal according to the prior art will be described with reference to the accompanying drawings.

1 is a functional configuration diagram of a general mobile communication system, FIG. 2 is a functional configuration diagram of a clock information supply device of a portable terminal according to the prior art, and FIG. 3 is a portable configuration according to the prior art. Terminal clock information supply method flow chart.

Referring to FIG. 1, a general mobile communication system includes: a mobile terminal (MS) 10, which wirelessly communicates with a counterpart at any time and anywhere while moving in a service area; A base station 20 for wirelessly connecting with the portable terminal 10 to transmit and receive a communication signal and to form a service area; A mobile switching station (MSC: MOBILE SWITCHING CENTER) 30 which accesses the base station 20 and analyzes an applied call connection request signal to set a communication path by switching and monitors and controls the entire mobile communication system.

The mobile terminal 10 communicates by wirelessly connecting with the other party while freely moving the service area formed by the base station 20. The service area formed by the base station 20 generally covers the whole country.

The mobile switching center 20 controls and manages a plurality of base stations and analyzes and switches the call connection request signal to switch, thereby establishing a corresponding communication path, registering and managing subscriptions of a plurality of mobile terminals 10, and a mobile communication system. Monitor and control the whole operation.

Since the plurality of mobile terminals 10 and the mobile switching center 30 as described above are connected through the base station 20 and must transmit and receive communication signals in the service area of all the base stations 20, the mobile station 10 and the base station 20 are portable. The communication signals transmitted and received between the terminals 10 need to match the synchronization (SYNCHRONOUS).

As described above, a signal for synchronizing the base station 20 and the mobile terminal 10 is a pilot signal and a system clock signal. In particular, the system clock signal is included in parameter information for system operation. Since the system clock signal is received together, it means that the mobile terminal 10 can normally connect with the base station 20 to transmit and receive a communication signal.

In general, the portable terminal 10 is for communication, and in order to communicate with the base station 20, the portable terminal 10 is supplied with necessary information in a connected state and operated.

When the mobile terminal 10 receives the system clock signal from the base station 20, the mobile terminal 10 displays various kinds of functions embedded in and added to the mobile terminal 10 while displaying time information, and the base station 20 performs GPS information. Using to generate a system clock signal of accuracy and reliability to supply to each mobile terminal (10).

Hereinafter, a clock information supply apparatus of a portable terminal 10 according to the prior art will be described with reference to FIG. 2.

A high frequency unit 40, which is transmitted from the base station 20 of the mobile communication system, receives a pilot signal, a system information signal and the like, and simultaneously transmits and receives a communication signal as a high frequency signal of an allocated band; It is connected to the high frequency unit 40, analyzes, displays, and outputs the received signal, and controls and monitors each functional unit of the mobile terminal 10, and various inputs for communication with various operation information detected for operation. A central processing unit (50) for applying communication information to the high frequency unit to wirelessly transmit to a base station; A memory (60) connected to the central processing unit (50) and storing and outputting various communication information and operation information under control; A display unit 70 connected to the central processing unit 50 and displaying various operation information and communication information under control; A voice unit 80 connected to the central processing unit 50 and inputting and outputting a voice communication signal under control; The keyboard 90 is connected to the central processing unit 50 and generates and outputs a control command, a text message, a dialing signal, and the like under control.

The portable terminal 10 having the above-described configuration, for example, receives a pilot signal and a system information signal transmitted from the base station 20 through the high frequency unit 40, and the received signal is sent to the central processing unit 50. Demodulated and analyzed, and divided into a signal for synchronizing and a signal for operation, respectively, stored in the memory 60, output to the display unit 70, and displayed, and the communication signal received from the high frequency unit 40 As described above, since the central processing unit 50 demodulates and applies the demodulation process to the voice unit 80, the signal is output as an audible signal.

In addition, the voice level signal applied from the voice unit 80, the dialing signal and the text message signal applied from the keyboard 90 are input to the central processing unit 50 and subjected to a modulation process to perform a high frequency unit. Since it is applied to 40, it is wirelessly transmitted.

The central processing unit 50 uses the system clock signal received from the base station 20 through the high frequency unit 40 to control and monitor the operation of each functional unit, generate time information, and output it to the display unit 70. do.

Thus, for example, when the system clock is not received from the base station 20, the central processing unit 50 of the mobile terminal 10 is unable to control and monitor each function unit, and various bookkeeping operations including communication operation are operated. There is no problem.

Hereinafter, a clock information supply method of a portable terminal according to the prior art will be described with reference to FIG. 3.

The mobile terminal 10 includes a first step (S10) of searching for and accessing a base station 20 having the best signal strength; A second step (S20) of searching for and receiving a pilot signal from the connected base station (20); A third step (S30) of retrieving and receiving system information including an operating parameter and a system clock signal from the connected base station 20; A fourth step (S40) of determining whether the system information is normally received without error in the step; A fifth step (S50) of normally operating the mobile terminal while displaying time information when the system information is normally received in the step (S40); When the system information is not normally received in the step S40, a sixth step S60 is performed to stop displaying all of the functions of the mobile terminal while displaying an indication of no mobile communication service.

Referring to the method of supplying the clock information of the portable terminal of the prior art as described above, the portable terminal 10, the base station 20 capable of transmitting and receiving in an optimal state by analyzing the strength of each signal received from a plurality of adjacent base stations 20 ), And the location is registered (S10).

The mobile terminal 10 retrieves and receives a pilot signal from the base station 20 connected as described above (S20), and processes various operating parameters and system clock information in accordance with the received pilot signal processing and synchronization. The received system information is searched for and received (S30), and it is determined whether the system information is received without error (S40).

If it is determined that there is no error in the received system information (S40), the time information is displayed on the mobile terminal through the corresponding analysis and at the same time normal operation of all communication and various additional functions (S50), in the determination (S40) If there is an error in the received system information, the mobile communication service (NO SERVICE) is displayed, and all functions of the mobile terminal are suspended (S60).

The portable terminal 10 according to the related art having the above configuration displays the time information and performs additional functions such as communication only when receiving the system clock through the base station 20.

Therefore, when the system clock is not received through the base station 20, there is a problem in that time information cannot be obtained by using a mobile terminal, that is, for example, a trip or overseas business trip in a region with poor radio wave environment such as a mountainous region. In such a case, there is a problem that time information and additional services cannot be used through a mobile terminal.

The present invention provides a clock information supply apparatus and method for a portable terminal that displays time information using a self-generated clock and operates an additional service even when the portable terminal does not receive a system clock signal out of the service area of the base station. That is the purpose.

The present invention has been made in order to achieve the above object, the high frequency unit for wirelessly connecting to the base station and transmitting and receiving a communication signal including a pilot signal and a system information signal; A central processing unit connected to the high frequency unit, analyzing, storing, displaying, and outputting a received signal, controlling and monitoring each functional unit, and applying a communication signal to the high frequency unit; An internal clock unit connected to the central processing unit and generating and outputting a clock signal under control; A memory connected to the central processing unit and storing and outputting various communication information, operation information and time information under control; And a display unit for connecting to the central processing unit and displaying various operation information and communication information under control.

In addition, the present invention has been made in order to achieve the above object, the connection process for accessing the base station of the optimum wireless environment by the mobile terminal, the search and reception of the pilot signal and system information; Determining whether to access the base station and receive the system information without error in the process; If it is determined that the system information is not received from the base station or there is an error in the process, the central processing unit stores the current operating parameter information in the memory, and operates the time display and additional functions except the communication function using the time information of the internal clock unit. Internal process of doing; When the reference time information in operation is changed in the above process, the changed time information is displayed.

1 is a functional configuration diagram of a general mobile communication system,

2 is a functional configuration diagram of a clock information supply device of a portable terminal according to the prior art;

3 is a flowchart of a method for supplying clock information of a portable terminal according to the prior art;

4 is a functional block diagram of a clock information supply device of a portable terminal according to the present invention;

5 is a flowchart illustrating a method for supplying clock information of a portable terminal according to the present invention.

** Explanation of symbols on the main parts of the drawing **

100: high frequency unit 110: central processing unit

120: internal clock portion 130: memory

140: display unit 150: keyboard

160: voice part

Hereinafter, the present invention will be described with reference to the accompanying drawings, a clock information supply apparatus and method of a portable terminal.

4 is a functional block diagram of a clock information supply apparatus of a portable terminal according to the present invention, and FIG. 5 is a flowchart of a clock information supply method of a portable terminal according to the present invention.

Referring to FIG. 4, a clock information supply apparatus of a portable terminal according to the present invention includes a high frequency unit wirelessly connecting to a mobile communication base station (BS) and wirelessly transmitting and receiving a communication signal including a pilot signal and a system information signal. With 100,

It is connected to the high frequency unit 100, analyzes the radio signal received, records, stores, displays and outputs, controls and monitors each functional unit and applies a communication signal to the high frequency unit, the system clock through the high frequency unit 100 If the signal is not supplied, the last received clock signal information and various current operating parameters are stored in the memory 130, the internal clock unit 120 to be described later is generated and supplied with a clock signal, and the clock signal is received. A central processing unit 110 for displaying continuous time information using the display unit 140 and controlling each additional function to be operated;

An internal clock unit 120 connected to the central processing unit 110 and generating and outputting a clock signal under a corresponding control;

A memory 130 connected to the central processing unit 110 and storing and outputting various communication information, operation parameter information and time information under control;

A display unit 140 connected to the central processing unit 110 and visually displaying various operation information and communication information under control;

A voice unit 160 connected to the central processing unit 110 to input and output a voice communication signal;

The keyboard 150 is connected to the central processing unit 110 and inputs a dialing signal, a control command, and a text message signal.

Hereinafter, the portable terminal clock information supply apparatus according to the present invention having the above configuration will be described. The pilot signal and the system information signal transmitted from the base station BS are received through the high frequency unit 100, and the central processing unit 110 is provided. ) To determine if a system clock signal is received.

When the system clock signal is detected and received as determined by the central processing unit 110, the portable terminal is supplied from the base station to the system clock, and the correct clock information supplied from the GPS satellite is processed and displayed as time information. It operates mobile communication service and operates various additional services.

However, when the central processing unit 110 searches for and analyzes a signal received through the high frequency unit 100 and determines that a system clock signal is not received, the time information and various operating parameters of the system clock received so far. While recording and storing information in the memory 130, the internal clock unit 120 is controlled to generate a clock signal by itself.

The central processing unit 110 generates time information using the clock signal generated from the internal clock unit 120, displays the time information on the display unit 140, and operates various additional functions, and the keyboard 150. When new reference time information is inputted through, the new time information is calculated and output to the display unit 140 based on the input time information.

Therefore, the portable terminal according to the present invention having the above-described configuration controls the internal clock unit 120 even when the system clock information is not supplied from the base station BS, thereby generating a clock signal by itself, and generating time information. Display and operate various additional functions.

In addition, even if it leaves the service area, time information may be provided, and when the reference time moves to a different region, time information by the new reference time may be used.

Hereinafter, referring to FIG. 5, a clock information supply method of a mobile terminal according to the present invention will be described.

The mobile terminal (MS) for mobile communication is connected to a base station in an optimal wireless environment, and searches and receives pilot signals and system information, and the mobile terminal (MS) searches for and accesses a nearby base station forming an optimal wireless environment (S100). ); A connection process comprising a process of searching for and receiving system information including a pilot signal, a synchronization parameter, and system clock information for synchronization from the base station in step S100;

Determining whether to access the base station (BS) in the access process and receive system information without error (S120);

If it is determined that the system information is not received from the base station (BS) or there is an error in the determination process, the central processing unit 110 stores the current operating parameter information in the memory 130, the clock information of the internal clock unit 120 By using the time display and the additional function except the communication function, the process of recording and storing the current operating parameter information in the memory 130 by the portable terminal (MS) central processing unit 110; Generating and outputting a clock signal by controlling the operation of the internal clock unit 120 (S140); An internal process consisting of a time display function and an additional function (S150) except for the communication function of the mobile terminal (MS);

If it is determined that the reference time information in operation is changed in the internal process, displaying the changed time information and determining whether new reference time information is input to the central processing unit through the keyboard (S160); When the new reference time information is input in the step S160, the display process includes a step S170 of calculating and displaying the new time information on the display unit 140;

In the case of accessing the base station (BS) in the determination process (S120) and receiving the system information without error, the process of operating the communication function, time display and addition of the mobile terminal (MS) normally (S190);

If the time information is not changed in the display process S160, the process includes displaying the existing time information received from the base station BS (S180).

Hereinafter, according to the present invention having the configuration described above, the clock information supply method of the mobile terminal will be described in detail with reference to the accompanying drawings, the mobile terminal (MS) to search and access the adjacent base station (BS), the connection The pilot signal and system information are received from the received base station (S110).

Through the connection process, the mobile terminal MS searches for a neighboring base station BS, determines whether the pilot signal and system information are received without error (S120), and the error is determined from the connected base station BS. When receiving the missing pilot signal and system information, the mobile terminal (MS) normally operates the mobile communication and various additional functions (S190).

In addition, when the determination fails to access the neighboring base station, or even if there is an error in the received system information (S120), the central processing unit 110 stores the various parameter information that has been operating until now in the memory 130 ( S130), in case the system information is normally received from the base station, and operates to generate and output the clock by controlling the internal clock unit 120 (S140), normal operation of the time display and additional functions except the mobile communication function (S150).

The displayed time information is continuous with the existing time information, and uses the internal clock signal generated by itself instead of the correct system clock applied from the base station BS. have.

Such a state may be, for example, a case in which the user leaves a mobile communication service area and travels in the mountains, or travels to a foreign country having different reference time information. If you go, you must change the time information.

The portable terminal MS determines whether reference time information to be changed is input through the keyboard 150 (S160), and when the changed reference time information is input, the central processing unit 110 displays the newly changed time information. If it is determined that the reference time information changed through the keyboard 150 is not input, the existing time information is output to the display unit 140 as it is (S180).

Therefore, even when the mobile terminal MS travels in a deep mountain where the signal transmitted from the base station BS of the mobile communication system does not reach, the time information can be maintained and displayed, and the mobile communication service area can be displayed. In the case of traveling to a foreign country other than this, new reference time information of a destination may be input, and time information based on the reference time of the destination may be displayed on the display unit.

According to the present invention having the above configuration, even if the mobile terminal travels in a deep mountain, not in the mobile communication service area, there is an industrial use effect that the existing time display service can be continuously used.

In addition, when traveling to another country other than the mobile communication service area of the own country, there is a convenient effect of inputting local reference time information and displaying time information based on the new reference time information on the display unit by the internal clock information. .

In addition, even when the mobile terminal does not receive the system clock from the base station, there is a convenient effect of using various built-in additional functions.

Claims (10)

A high frequency unit which wirelessly connects to a base station and transmits and receives a communication signal including a pilot signal and a system information signal; A central processing unit which connects to the high frequency unit, analyzes a received signal, records, stores, displays and outputs, controls and monitors each functional unit, and applies a communication signal to the high frequency unit; An internal clock unit connected to the central processing unit and generating and outputting a clock signal under control; A memory connected to the central processing unit and storing and outputting various communication information, operation information and time information under control; And a display unit for connecting to the central processing unit and displaying various operation information and communication information under control. According to claim 1, A voice unit connected to the central processing unit to input and output a voice communication signal; And a keyboard for accessing the central processing unit and inputting a dialing signal, a control command and a text message signal. The method of claim 1, wherein the central processing unit, If the system clock signal is not supplied through the high frequency unit, the received clock signal information and various current operating parameters are stored in a memory, and the internal clock unit is controlled to generate and receive a clock signal. A clock information supply device for a portable terminal, characterized by displaying a continuous time information on a display unit and controlling each additional function to be operated. The method of claim 1, wherein the central processing unit, And when reference time information is input through the keyboard, outputting and displaying new time information on the display unit based on the input time information. The mobile terminal accesses the base station in an optimal wireless environment, searches for and receives pilot signals and system information, and Determining whether to access the base station and receive the system information without error; If it is determined that the system information is not received from the base station or there is an error in the process, the central processing unit stores the current operating parameter information in the memory, and operates the time display and the additional function except the communication function by using the clock information of the internal clock unit. Internal process, And if it is determined that the reference time information in operation is changed in the process, displaying the changed time information. The method of claim 5, And accessing the base station and receiving the system information without error during the determination process, further comprising the step of normally operating the communication function, the time display, and the addition of the portable terminal. The method of claim 5, If the time information is not changed in the display process, the method further comprises the step of displaying the existing time information received from the base station. The method of claim 5, wherein the connection process, The mobile terminal searches for and accesses a nearby base station that forms an optimal wireless environment; And searching for and receiving system information including a pilot signal for synchronization and an operating parameter and system clock information from the base station in the process. The method of claim 5, wherein the internal process, Storing and storing the current operating parameter information in the memory by the central processing unit of the mobile terminal; Controlling the internal clock unit to generate and output a clock; A clock information supply method of a portable terminal, comprising a process of operating a time display function and an additional function except for a communication function of the portable terminal. The method of claim 5, wherein the display process, Determining whether new reference time information is input to the central processing unit through the keyboard; And when new reference time information is input in the above process, calculating new time information and displaying the new time information on the display unit.