KR20080070272A - Mobile devices with function of selective using of location information and program recording medium - Google Patents

Abstract

A mobile device with a function of selectively using location information and a program recording medium are provided to constantly supply global positioning service regardless of the number of GPSs(Global Positioning Systems) secured on a visible line of the mobile device. A mobile device(100) with a function of selectively using location information includes a GPS signal receiving unit(130), a positioning unit(155), an information checking unit(145), an information storage unit, an information processing unit. The GPS signal receiving unit receives at least one GPS satellite signal from at least one GPS satellite on a visible line. The positioning unit determines a current position of the mobile device through satellite data corresponding to the received GPS satellite signal. The information checking unit checks whether the number of GPSs on the visible line is reduced from N to N-1 by reading the received GPS satellite signal. The information storage unit stores previously positioned location information of the mobile device to a predetermined memory unit(140) when the number of GPSs on the visible line is reduced from N to N-1.

Description

Wireless terminal with selective use of location information and a program recording medium therefor {Mobile Devices with Function of Selective Using of Location Information and Program Recording Medium}

1 is a diagram illustrating a functional configuration for continuous GPS location tracking according to an embodiment of the present invention.

2 is a diagram illustrating a protocol structure for transmitting and receiving wireless terminal location information between a wireless terminal and a base station for continuous GPS location tracking according to an embodiment of the present invention.

3 is a diagram illustrating a request data structure for continuous GPS location tracking according to an embodiment of the present invention.

4 is a diagram illustrating a response data structure for continuous GPS location tracking according to an embodiment of the present invention.

5 is a diagram illustrating an operation process of setting a positioning mode of a wireless terminal for continuous GPS location tracking according to an embodiment of the present invention.

6 is a diagram illustrating an operation process of transmitting location information in each positioning mode of a wireless terminal for continuous GPS location tracking according to an embodiment of the present invention.

7 is a diagram illustrating an operation process of setting a positioning mode of a wireless terminal for continuous GPS location tracking according to another embodiment of the present invention.

8 is a diagram illustrating an operation process of transmitting location information in each positioning mode of a wireless terminal for continuous GPS location tracking according to another embodiment of the present invention.

Description of the main parts of the drawing>

100: wireless terminal 105: control unit

110: screen output unit 115: sound processing unit

120: key input unit 125: battery

130: GPS signal receiving unit 135: wireless processing unit

140: memory unit 145: information confirmation unit

150: positioning mode switching unit 155: position positioning unit

160: information transmission unit 165: information storage unit

According to the present invention, when four or more GPS satellites are secured on a line of sight of a wireless terminal having a predetermined GPS module, the GPS receiver receives and real-time positioning four or more GPS satellite signals from the GPS satellites to calculate current location information of the wireless terminal. On the contrary, if four or more GPS satellites are not secured on the line of sight of the radio terminal, the current position information of the radio terminal, which has been previously calculated and calculated, is processed as the final position information of the radio terminal and stored in a memory. It provides a location tracking service continuously regardless of the number of GPS satellites secured on the trailing line of the terminal.

Conventional methods for tracking the position of a mobile body include a method using a GPS (Global Positioning System), a triangulation method using radio wave propagation characteristics of a radio frequency signal, and a cell ID (Cell ID) that tracks the position of a mobile body based on a base station position. Among them, the GPS method is known as a technology capable of high-precision location tracking at a low cost, and is thus equipped with a location tracking function of most wireless communication terminal devices.

The GPS location tracking method includes a predetermined GPS receiver in a wireless communication terminal device, receives signals transmitted from four or more GPS satellites, and calculates its own location. It uses a method of reporting to a destination through a communication base station, and has a location accuracy of several meters in a open area.

The GPS satellite for positioning of the GPS system comprises 24 GPS satellites orbiting the earth at an altitude of about 20,000 kilometers, the GPS satellite uses radio waves in the 1.5 GHz band, and the control station on the ground (Control) Station is a coordination center that collects and synchronizes the information transmitted from the GPS satellites, and the user receives signals from four or more GPS satellites through the GPS receiver to calculate their location. It uses a method for reporting to the destination through the wireless communication base station, having a position accuracy within a few meters in the open area.

Here, a triangulation method is used as a positioning method for positioning the GPS method, and three satellites are required for the triangulation, and a total of four GPS satellites including one observation satellite for time error This is necessary.

In more detail, in the GPS tracking method, since the location of each of the three satellites is already known, the distance between the satellite and the GPS receiver is measured to perform positioning. Here, since the distance from the GPS satellite to the GPS receiver is transmitted from the satellite, the propagation time can be known from the difference between the time at which the radio wave is transmitted from the satellite and the time received by the GPS receiver incorporating the clock. Multiply by the speed of light to calculate the distance.

However, since the GPS position tracking method is a signal having a very weak signal strength of -130 dBm from the GPS satellite, a line of sight (LOS) between the satellite and the GPS receiver is not secured ( For example, when the GPS receiver and the satellite are not secured due to buildings / terrains, or when the GPS receiver is located indoors, a signal itself is not caught and the location tracking itself is impossible.

In addition, the position tracking method of the GPS method calculates its own position in a wireless communication terminal device equipped with the GPS receiver, and since the calculation process includes a complicated calculation process, a high performance computing function is provided in the wireless communication terminal device. Not only is this necessary, it also involves the problem of consuming high power for the computation.

An object of the present invention for solving the above problems, is provided with a predetermined GPS chip (or GPS module), receives at least one GPS satellite signal from at least one GPS satellite located on a visible line (Visible Line), Positioning the current position of the wireless terminal through satellite data corresponding to the received at least one GPS satellite signal,

It provides a wireless terminal that deactivates the location information of the wireless terminal and stores it in a predetermined memory unit, and reads the received GPS satellite signal to check whether GPS satellites on the visible line fall from N to (N-1). .

The wireless terminal according to the present invention includes a GPS signal receiving means having a predetermined GPS chip (or GPS module) and receiving at least one GPS satellite signal from at least one or more GPS satellites located on a visible line. Positioning means for positioning the current position of the wireless terminal through satellite data corresponding to the received at least one GPS satellite signal, and reading the received GPS satellite signal to obtain N GPS satellites on the visible line; N-1) information confirming means for confirming that the fall, and if the GPS satellites on the line of sight falls from N to (N-1) as a result of the check, the position information of the radio terminal previously positioned by the positioning means If a predetermined location information transmission command is input before the number of the information storage means stored in the memory unit and the number of GPS satellites on the visible line are secured, the memory, Information of the wireless terminal location information stored in the wireless terminal location information stored in the memory or the memory unit in a predetermined text or binary form and transmitted to a predetermined server (or terminal) through a base station connected to the wireless terminal and a predetermined wireless channel It is characterized by comprising a processing means.

The wireless terminal according to the present invention includes a GPS signal receiving means having a predetermined GPS chip (or GPS module) and receiving at least one GPS satellite signal from at least one or more GPS satellites located on a visible line. Location information means for positioning the current location of the wireless terminal through satellite data corresponding to the received at least one GPS satellite signal and information for deactivating the location information of the located wireless terminal and storing the location information in a predetermined memory unit; And storage means and information checking means for reading the received GPS satellite signal and checking whether the GPS satellites on the visible line fall from N to (N-1).

According to the present invention, the information storing means is characterized in that when the GPS satellites on the line of sight falls from N to (N-1) as a result of confirming the information confirming means, it activates the location information of the radio terminal stored in the memory unit .

According to the present invention, if the predetermined position information transmission command is input before the number of GPS satellites on the visible line is secured by N or more, the wireless terminal position information stored in the memory unit or the radio stored in the memory unit And converting the terminal location information into a predetermined text or binary form and transmitting the terminal location information to a predetermined server (or terminal) through a base station to which the wireless terminal and the predetermined wireless channel are connected.

According to the present invention, if the number of GPS satellites on the visible line is N or more, the wireless terminal switches the positioning mode of the radio terminal to the GPS positioning mode, and when the number of GPS satellites on the line of sight falls to (N-1), the wireless Positioning mode switching means for switching the positioning mode of the terminal to the positioning information storage mode is characterized in that it further comprises.

According to the present invention, the N is characterized in that one of three or more numbers.

According to the present invention, the wireless terminal is characterized in that it comprises a mobile phone.

On the other hand, the present invention includes a recording medium characterized by recording a program for realizing the functions of the above-described radio terminal constituting means.

Hereinafter, with reference to the accompanying drawings and description will be described in detail the operating principle of the preferred embodiment of the present invention. However, the drawings and the following description shown below are for the preferred method among various methods for effectively explaining the features of the present invention, the present invention is not limited only to the drawings and description below. In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the present invention.

In addition, the preferred embodiment of the present invention to be carried out below is provided in each of the radio terminal functional configuration in order to efficiently describe the technical components constituting the present invention, or a radio commonly provided in the technical field to which the present invention belongs Terminal function configuration is omitted as possible, it will be described mainly for the functional configuration to be additionally provided for the present invention. If those skilled in the art to which the present invention pertains, it will be able to easily understand the function of the components that are conventionally used among the omitted functional configuration not shown below, and also the configuration omitted as described above The relationship between the elements and the components added for the present invention will also be clearly understood.

In addition, the following examples will be used to appropriately modify the terms so that those skilled in the art to clearly understand the technical features of the present invention to effectively understand, but the present invention It is by no means limited.

As a result, the technical spirit of the present invention is determined by the claims, and the following examples are one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains. It is only.

1 is a diagram illustrating a functional configuration 100 for continuous GPS location tracking according to an embodiment of the present invention.

In more detail, FIG. 1 illustrates a mobile access to a predetermined wireless communication network including a mobile communication network operating based on Code Division Multiple Access (CDMA) / Wide CDMA (WCDMA) and / or High-Speed Downlink Packet Access (HSDPA). In the case where the communication terminal performs the function of the wireless terminal 100 for executing the last position information storage function for the continuous GPS position tracking, the configuration of the preferred function of the terminal device for the continuous GPS position tracking, Those skilled in the art to which the present invention pertains may refer to and / or modify this drawing to determine other terminal devices (eg, portable Internet terminals, etc.), and / or each terminal device for the continuous GPS location tracking. It will be possible to infer implementation methods for various functional configurations corresponding to characteristics, but the present invention includes all implementation methods inferred from the above. The technical features are not limited only to the implementation method shown in FIG.

According to an embodiment of the present invention, the wireless terminal 100 providing CDMA / WCDMA and / or HSDPA-based mobile communication service has a physical body, a speaker, a microphone, a keypad, and a liquid crystal (LCD) in terms of hardware. Display), an antenna and a battery, and internally, a predetermined modem chip having functions such as a code division multiple access (CDMA) modem, a central processing unit / micro processing unit (CPU / MPU), a vocoder ( For example, Qualcomm's MSM series modem chip), various memory devices, a duplexer filter for separating transmission and reception signals from one antenna, a power amplifier for amplifying a transmission signal, a high power amplifier (HPA), Isolator to prevent high power transmission signal from reversed, RF / IF SAW filter to remove unwanted out-of-band unwanted signal, frequency up circuit of transmission path, number Frequency downconversion circuit of the path, Voltage Controlled Temperature Compensated X-tal Oscillator (VCTCXO) corresponding to the reference clock source, UHF frequency synthesizer used as local signal of frequency up-down conversion, and codec for converting analog voice signal into digital signal It is characterized in that it comprises a chip, the internal components as described above are gradually integrated in the modem chip, the modem chip in addition to the core components for the mobile communication services, such as various multimedia services and / Or various functions for additional services are integrated together.

Referring to FIG. 1, the wireless terminal 100 for continuous GPS location tracking may include a control unit corresponding to the modem chip, a screen output unit corresponding to a liquid crystal display (LCD), and a microphone / speaker. And a sound processor, a key input unit corresponding to a keypad, a wireless processor corresponding to an antenna and various RF modules, a memory unit corresponding to a nonvolatile memory, and a battery for supplying predetermined power.

In addition, the wireless terminal 100 preferably comprises a GPS signal receiver for receiving a GPS satellite signal from at least one or more GPS satellites for GPS (Global Positioning System) based positioning for the continuous GPS location tracking, According to the intention of those skilled in the art, the GPS signal receiver may be included in the wireless processor or may share some RF functions, and thus the present invention is not limited thereto.

In addition, the wireless terminal 100 further includes a camera unit (not shown) that reads predetermined image information for providing various multimedia services and / or various additional services corresponding thereto, and / or a predetermined short range device. And a near field communication unit (not shown) for connecting a near field communication channel with each other.

In addition, the wireless terminal 100 is an IC chip (eg, financial IC chip, or mounted on or detached from the wireless terminal 100) to provide various financial (or payment) services and / or various additional services corresponding thereto. USIM and the like), and an IC chip reader section (not shown) for reading / writing predetermined information (or data) is preferably provided on the IC chip.

The control unit includes a processor and an execution memory including a CPU / MPU provided in the modem chip in hardware, and includes a predetermined program routine for providing a function specific to the wireless terminal 100 from a predetermined memory device. And / or a bus for inputting and outputting program data and a predetermined electronic circuit (or integrated circuit) provided therefor, wherein the memory unit and / or the memory device (or chipset) are implemented in software. A generic term for program routines and / or program data loaded from the execution memory into the execution memory and processed by the processor to perform specific functions (hence, recorded on the recording medium of the wireless terminal 100 for the continuous GPS positioning). A predetermined program routine to be described as being provided in the control section for convenience. The program routine included in the controller basically includes an operating system routine (not shown) and at least one system management routine (eg, a power management routine, a channel (forward / reverse) management routine, a handoff routine, etc.). It is characterized in that the various functional configurations to be implemented in the wireless terminal 100 by the control unit is characterized in that is realized.

According to an exemplary embodiment of the present invention, after power is supplied to the wireless terminal 100, the operating system routine (not shown), at least one system management routine (not shown), and various system variables corresponding thereto are provided to the controller. By loading into the provided execution memory and arithmetic processing by the processor, the wireless terminal 100 is configured to obtain a detailed system setting state, a pilot channel acquisition detail state, a synchronization channel acquisition detail state and a timing conversion detail state according to a predetermined booting procedure. The operation mode corresponding to the "mobile station initialization state" is set.

After performing the booting procedure, the operating system routine (not shown), at least one system management routine (not shown), and various system variables corresponding thereto are loaded into the execution memory included in the controller and processed by the processor. As a result, the wireless terminal 100 is set to an operation mode corresponding to a "mobile station standby state", "system access state", or "call channel state", thereby enabling mobile communication-based wireless access and call processing. Perform the procedure.

According to an embodiment of the present invention, after the booting procedure is performed, or after being performed, the control unit preferably includes a function of detecting a residual power (or residual power) for the battery power.

The screen output unit is a function configuration unit for checking the operation of the operation mode and the operation state corresponding to the operation mode of the wireless terminal 100, at least one screen output device including an LCD provided in the wireless terminal 100 and And a driver for driving the screen output device, outputting at least one or more key data input through the key input unit in conjunction with the control unit, and / or provided in the wireless terminal 100. Outputs a menu screen, a function processing screen, and a function processing result screen corresponding to at least one or more functions (or programs), and / or at least one or more contents (eg, downloaded or included) in the wireless terminal 100 (eg, Character content, image content, multimedia content).

According to the present invention, the screen output unit, when executing the last position information storage function for the continuous GPS position tracking, a menu screen, a function processing screen and a function processing result corresponding to the last position information storage function of the wireless terminal 100 It is preferable to perform the function of the screen output means for outputting the screen.

The sound processor is a functional component that processes input and output of sound in each operation mode of the wireless terminal 100. The sound processor decodes at least one or more encoded sound data to a speaker provided in the wireless terminal 100. And a vocoder and a codec for encoding and encoding a sound signal input through a microphone provided in the wireless terminal 100.

According to an exemplary embodiment of the present invention, the sound processor decodes sound data corresponding to a predetermined ring back tone through the speaker in an operation mode corresponding to the “system access state” among the operation modes of the wireless terminal 100. And / or encode and input a predetermined voice signal through a microphone in an operation mode corresponding to the “call channel state”, or decode and output a predetermined voice signal through a speaker.

In addition, the sound processing unit when playing at least one or more sound content and / or multimedia content provided (or downloaded) in the wireless terminal 100 in at least one operation mode including the "mobile station call waiting state", It is preferable to decode and output sound data corresponding to the reproduced content.

According to the present invention, the sound processor decodes and outputs sound data corresponding to the last position information storage function of the wireless terminal 100 when executing the last position information storage function for the continuous GPS position tracking. It is desirable to perform the function of.

The key input unit includes a predetermined key input device having at least one key button including a predetermined number key and / or a character key and / or a function key. And a driver for driving the key input device, thereby detecting at least one key input signal generated by clicking (or entering) the key button in the key input device. do.

According to the present invention, when a predetermined key input signal is detected from a predetermined key button provided in the key input device in a predetermined input mode and / or at least one or more operation modes controlled by the controller, the key input unit And generate a predetermined key event (eg, MH_KEY_PRESSEVENT, MH_KEY_REPEATEVENT, MH_KEY_RELEASEEVENT) corresponding to the detected key input signal, and provide the generated key event to the controller, wherein the controller is configured to perform the wireless terminal 100. Read predetermined key data corresponding to the key event in the current input mode and / or operation mode of (e.g., store at least one key data corresponding to a specific key event in each input mode and / or operation mode) Read key data from the key table) and / or match the key event. It characterized in that the command to execute a predetermined function is defined shipping dock.

According to an embodiment of the present invention, the key input unit inputs a predetermined telephone number in an operation mode corresponding to the "mobile station call waiting state" of each operation mode of the wireless terminal 100, and a predetermined "call" button. By inputting, it is preferable to change the operation mode of the radio terminal 100 to an operation mode corresponding to the "system access state".

In addition, the key input unit may input a predetermined function key (for example, a menu key) in an operation mode corresponding to the "mobile station call waiting state" among the operation modes of the wireless terminal 100, thereby allowing the wireless terminal 100 to be input. It is desirable to execute various functions provided in the.

According to an exemplary embodiment of the present invention, the key input unit is configured to boot the mobile terminal 100 after a predetermined power is input for the last position information storage function for the continuous GPS position tracking. Key data corresponding to a dedicated function key (for example, a location tracking hotkey) for the final location information storage function among predetermined key buttons provided in the key input device in an operation mode corresponding to "or" mobile station call waiting state ". And / or key input means for inputting key data corresponding to at least one or more function keys (eg, a menu key and at least one menu selection key (or navigation key)) for the final location information storage function. It is desirable to perform the function of.

The wireless processor is a functional component that connects a wireless channel with a base station on a mobile communication network in which the wireless terminal 100 operates based on CDMA / WCDMA and / or HSDPA, and includes a CDMA modem and various RF modules (eg, a duplexer filter, Power amplifiers, high power amplifiers (HPAs), isolators, RF / IF SAW filters, frequency up- circuits, frequency down-conversion circuits, VCTCXOs, UHF frequency synthesizers, etc. for reference clock sources) and antennas And a driver for driving, corresponding to each operation mode of the wireless terminal 100 in association with the control unit, and registering a location and / or a slot mode and / or a power control. And / or perform a hand-off and / or call processing procedure.

According to an embodiment of the present invention, the radio processing unit transmits and receives a radio frequency signal transmission / reception function corresponding to the final location information storage function for the continuous GPS location tracking (eg, antenna control, modulation, synthesis, amplification, and / or radio frequency signal). Or it is preferable to have a function for transmitting the final location information of the wireless terminal 100 stored in the memory unit based on the filtering to a predetermined server (or terminal).

In particular, the wireless processing unit preferably processes the location information (or location signal) of the wireless terminal 100 transmitted from the wireless terminal 100 to the base station in the CDMA stack for the continuous GPS location tracking, or It is preferable to include a function for reading a command (or information) associated with the transmission of the position information (or position signal) of the radio terminal 100 from the CDMA stack received from the base station.

According to another embodiment of the present invention, if the wireless terminal 100 shown in FIG. 1 is a portable Internet terminal, the wireless processing unit accesses an IEEE 802.16x based portable Internet to provide a predetermined portable Internet service for the continuous GPS location tracking. It is possible to include a wireless communication function configuration to provide, whereby the present invention is not limited.

The GPS signal receiver may receive a GPS satellite signal from at least one GPS satellite for GPS-based positioning for the continuous GPS location tracking.

According to the present invention, the GPS satellite transmits a GPS satellite signal including predetermined satellite data to a carrier that is accurately adjusted to two frequencies L1 (1575.42 MHz) and L2 (1227.6 MHz) in an L band. Is composed of a predetermined PRN code (Pseudo Random Noise code) specifically designed for each GPS satellite number, and is transmitted in Code Division Multiple Access (CDMA).

In order to receive the GPS satellite signals transmitted from the GPS satellites, the GPS signal receiving unit includes an antenna unit for receiving GPS satellite signals transmitted from the GPS satellites in hardware, and an RF / IF processing unit for the GPS satellite signals (not shown). O), low noise amplifier (not shown), signal conversion and sampling unit (not shown), delay locked loop (not shown), and the like. Receiving a signal, comprising a GPS signal controller (not shown) having program code for obtaining information about the relative position of other satellites from the satellite signal and tracking all visible satellite signals within a short time; It features.

According to the present invention, the GPS signal receiver reads at least one or more satellite data (for example, location information and signal transmission time information of each GPS satellite for GPS-based positioning) from the received at least one GPS satellite signal. To provide to the control unit.

Those skilled in the art will understand the technical features of each of the functional components included in the GPS signal receiver for receiving the GPS satellite signal, so the detailed description thereof is omitted for convenience. do.

According to another exemplary embodiment of the present invention, each functional component included in the GPS signal receiver may be partially included in the wireless processor or may share some functions, and thus the present invention is not limited thereto.

The memory unit is a generic term for a nonvolatile memory corresponding to a storage medium storing at least one or more information (or data) in the wireless terminal 100 and / or a recording medium for recording program codes corresponding to at least one or more program routines. And a read only memory (ROM) corresponding to the read only memory, a flash memory (FM), an electrically erasable and programmable read only memory (EEPROM), and the like. .

According to an embodiment of the present invention, the ROM information of the nonvolatile memory is not to be stored, and the flash memory is provided through an operating system routine, a call processing program routine, and / or the wireless terminal 100. Various application program routines and information or data for the same are stored, and the EEPROM is extracted and / or generated during the execution of the application included in the terminal registration related parameters and phone number (eg, address book) or the wireless terminal 100. Preferably at least one or more information (or data) is stored.

According to an exemplary embodiment of the present invention, the memory unit uses the current position information of the wireless terminal 100 periodically positioned by the wireless terminal 100 as the last position information of the wireless terminal 100 for the continuous GPS position tracking. It is desirable to process and store.

Referring to FIG. 1, the wireless terminal 100 for continuous GPS location tracking may identify at least one or more satellite data corresponding to at least one or more GPS satellite signals received through the GPS signal receiver. By checking the number of GPS satellites located on a visible line of the (Vsible) line, an information checking unit for confirming whether the number of GPS satellites satisfies the conditions for GPS positioning, and the result of the confirmation is that the number of GPS satellites If the condition is satisfied, the position positioning mode of the wireless terminal 100 is switched (or maintained) to the GPS positioning mode, and if the number of GPS satellites does not satisfy the conditions for GPS positioning, the wireless terminal 100 And a positioning mode switching unit for switching (or maintaining) the positioning mode to the positioning information storage mode.

According to the present invention, the GPS positioning requires receiving the GPS satellite signals from a total of four or more GPS satellites including three GPS satellites for triangulation and one GPS satellite for time error correction. The unit checks the number of the satellite data provided from the GPS signal receiving unit to determine whether the number of GPS satellites located on the visible line of the wireless terminal 100 is four or more.

If the number of the GPS satellites located on the visible line of the wireless terminal 100 is four or more as a result of checking the information confirming unit, the positioning mode switching unit switches the positioning mode of the wireless terminal 100 to the GPS positioning mode ( Or maintenance).

On the other hand, if the number of the GPS satellites located on the visible line of the wireless terminal 100 is less than four as a result of checking the information confirming unit, the positioning mode switching unit switches the positioning mode of the wireless terminal 100 to the positioning information storage mode. (Or hold).

Referring to FIG. 1, when the positioning mode of the wireless terminal 100 is switched (or maintained) to the GPS positioning mode by the positioning mode switching unit, the wireless terminal 100 for continuous GPS position tracking may be configured. A location positioning unit for calculating current location information of the wireless terminal 100 by positioning the current location of the wireless terminal 100 from at least one or more satellite data corresponding to the at least one GPS satellite signal received through a signal receiving unit. Characterized in that made.

The positioning unit receives at least one or more satellite data corresponding to at least one or more GPS satellite signals received from at least one or more GPS satellites through the GPS signal receiving unit, and based on the satellite data, the current location of the wireless terminal 100 It is characterized by calculating the current location information of the wireless terminal 100 by positioning the location, the location positioning unit is a predetermined GPS chip (for example, MSM 3300 modem chip after the modem chip is mounted on the modem chip) 'gpsONE' chip) and / or the GPS positioning program code recorded on the recording medium provided in the wireless terminal 100.

According to an exemplary embodiment of the present invention, the location positioning unit is based on a GPS satellite signal received from at least one or more (preferably four or more) GPS satellites positioned on a visible line at a current position of the wireless terminal 100. It is preferable to calculate the current position information of the wireless terminal 100 through a simple GPS positioning method for positioning the current position of the wireless terminal 100.

According to another embodiment of the present invention, the location positioning unit, DGPS (Differential GPS) positioning method for correcting the error of the current position of the wireless terminal 100 calculated by the simple GPS positioning method, or A-GPS (Assisted-GPS) It is preferable to calculate the current position information of the wireless terminal 100 through at least one or more of the positioning method, or double differential GPS positioning method (Double Differential GPS), for this purpose, The processor preferably receives at least one position error correction information for correcting an error of a current position of the radio terminal 100 by the simple GPS positioning method from at least one base station according to the IS-801 standard. .

Those skilled in the art to which the present invention pertains, the location positioning unit at least one or more of the positioning method by a simple GPS positioning method, DGPS positioning method, A-GPS positioning method, or a dual differential method. It will be familiar with the technical features for calculating the current position information of the wireless terminal 100 through, a detailed description thereof will be omitted for convenience.

According to an embodiment of the present invention, the current location information of the wireless terminal 100 calculated by the location positioning unit is a text (eg, of the wireless terminal 100) via the base station on the wireless communication network through the wireless processing unit. Short message including current location information) or binary (for example, response data corresponding to IS-801 standard) is transmitted to at least one or more servers (or terminals) requiring the current location information of the wireless terminal 100. It is preferable that the present invention is not limited thereto.

Referring to FIG. 1, when the positioning mode of the wireless terminal 100 is switched (or maintained) to the positioning information storage mode by the positioning mode switching unit, the wireless terminal 100 for continuous GPS position tracking may be configured. Before the positioning mode of the wireless terminal 100 is switched to the positioning information storage mode, the current position information of the wireless terminal 100 positioned by the position positioning unit in the GPS positioning mode is the final position of the wireless terminal 100. And an information storage unit for processing the information into the memory unit.

When the positioning mode of the wireless terminal 100 is switched (or maintained) to the positioning information storage mode by the positioning mode switching unit, the information storage unit is switched to the positioning information storage mode. In the GPS positioning mode, the current position information of the wireless terminal 100, which is positioned by the position positioning unit, is processed as final position information of the wireless terminal 100 and stored in the memory unit.

According to the exemplary embodiment of the present invention, the current position information of the wireless terminal 100, which is positioned via the location positioning unit in the state where the positioning mode of the wireless terminal 100 is the GPS positioning mode, is controlled by the controller (for example, execution memory). When the positioning mode of the wireless terminal 100 is switched from the GPS positioning mode to the positioning information storage mode, the information storage unit stores the current position information of the wireless terminal 100 temporarily stored in the control unit. It is preferable to process the final position information of the wireless terminal 100 and store it in the memory unit.

According to another exemplary embodiment of the present invention, the information storage unit wirelessly stores the current location information of the wireless terminal 100 that is located through the location positioning unit while the positioning mode of the wireless terminal 100 is the GPS positioning mode. After processing as the last position information of the terminal 100 and stored in the memory unit, when the positioning mode of the wireless terminal 100 is switched from the GPS positioning mode to the positioning information storage mode, the wireless stored in the memory unit It is preferable to activate the final location information of the terminal 100.

In addition, when the positioning mode of the wireless terminal 100 is switched from the GPS positioning mode to the positioning information storage mode by the positioning mode switching unit, the information storage unit stores the positioning mode information corresponding to the positioning information storage mode. Preferably, the wireless terminal 100 stores the processed information in association with the final location information.

Alternatively, when the positioning mode of the wireless terminal 100 is switched from the positioning information storage to the GPS positioning mode by the positioning mode switching unit, the information storage unit stores positioning mode information corresponding to the GPS positioning mode. It is preferable to store in association with the final position information of 100.

According to the exemplary embodiment of the present invention, when the current position information calculation of the wireless terminal 100 through the position positioning unit is normally terminated and / or the positioning mode for the wireless terminal 100 is released, the information storage unit It is preferable to delete the last position information of the wireless terminal 100 stored in the memory unit.

Referring to FIG. 1, the wireless terminal 100 for continuous GPS location tracking may include the wireless terminal 100 in a state in which the positioning mode of the wireless terminal 100 is switched (or maintained) to the GPS positioning mode. When it is confirmed (or requested) to transmit the location information of a predetermined server (or terminal), and transmits the current location information of the wireless terminal 100 is located in real time via the location positioning unit to the server (or terminal) Characterized in that, in the state that the positioning mode of the wireless terminal 100 is switched (or maintained) to the location information storage mode, to transmit the location information of the wireless terminal 100 to a predetermined server (or terminal) If it is confirmed (or requested), characterized in that it comprises an information transmitting unit for transmitting the final position information of the wireless terminal 100 stored in the memory unit to the server (or terminal).

According to an embodiment of the present invention, in the state where the positioning mode of the wireless terminal 100 is switched (or maintained) to the GPS positioning mode by the positioning mode switching unit, the key input unit provided in the wireless terminal 100. A positioning command corresponding to at least one LBS service corresponding to the radio terminal 100 is input through the radio terminal 100 and / or from the base station to which the radio terminal 100 and a predetermined radio channel are connected. When the positioning command corresponding to the at least one LBS service corresponding to is received in the request data shown in FIG. 3 corresponding to the GPS protocol based on the IS-801 standard shown in FIG. In connection with the GPS signal receiver attempts to real-time positioning the current location information of the wireless terminal 100.

If the current position information of the wireless terminal 100 is normally real time positioned by the location positioning unit (eg, when the positioning mode of the wireless terminal 100 is maintained in the GPS positioning mode), the information transmitting unit is configured to perform the real time positioning. It is characterized in that to transmit the current position information of the positioned wireless terminal 100 to the server (or terminal) in the form of text or binary in conjunction with the wireless processing unit.

According to an embodiment of the present invention, the information transmitter converts the current location information of the real-time location wireless terminal 100 into text information (for example, text information within 80 bytes) to be included in the USER_DATA area of the short message, and Preferably, the final location information of the wireless terminal 100 is included in a predetermined short message and transmitted to the server (or terminal) via the base station on the wireless communication network through the wireless processing unit.

According to another exemplary embodiment of the present invention, the information transmitting unit may respond to the IS-801 standard-based GPS protocol shown in FIG. Converts the binary data to be substituted into the binary data, substitutes the final position information of the converted wireless terminal 100 into the response data shown in FIG. 4, and passes the base station on the wireless communication network through the wireless processing unit to the server (or terminal). Is preferred.

On the other hand, if the current position information of the wireless terminal 100 is not normally positioned by the location positioning unit in real time (for example, when the positioning mode of the wireless terminal 100 is switched to the positioning information storage mode), the information storage unit The current position information of the wireless terminal 100, which has been positioned in the previous GPS positioning mode, is processed as the final position information of the wireless terminal 100 and stored in the memory unit (or stored in the memory unit by positioning in the previous GPS positioning mode). Activate the final position information of the wireless terminal 100, wherein the information transmitter extracts the final position information of the wireless terminal 100 from the memory unit, and the final position of the extracted wireless terminal 100. The information may be transmitted to the server (or terminal) in the form of text or binary in association with the wireless processor.

According to an embodiment of the present invention, the information transmitter converts the final position information of the wireless terminal 100 extracted from the memory unit into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. The final location information of the converted wireless terminal 100 may be included in a predetermined short message and transmitted to the server (or terminal) via the base station on the wireless communication network through the wireless processing unit.

According to another exemplary embodiment of the present invention, the information transmitter shows final position information of the wireless terminal 100 extracted from the memory unit in response to the GPS protocol based on the IS-801 standard shown in FIG. Converts the binary data to be substituted into the response data, and substitutes the final position information of the converted wireless terminal 100 into the response data shown in FIG. 4 and passes the base station on the wireless communication network through the wireless processing unit. It is preferable to transmit to (or terminal).

According to another embodiment of the present invention, a key provided in the wireless terminal 100 in a state where the positioning mode of the wireless terminal 100 is switched (or maintained) to the positioning information storage mode by the positioning mode switching unit. A positioning command corresponding to at least one or more LBS services corresponding to the wireless terminal 100 is input through an input means, and / or from the base station to which the wireless terminal 100 and a predetermined wireless channel are connected. If the positioning command corresponding to the at least one LBS service corresponding to 100) is received in the request data shown in FIG. 3 in response to the GPS protocol based on the IS-801 standard shown in FIG. The unit extracts the final position information of the wireless terminal 100 (or activated) stored in the memory unit by the information storage unit, and the extracted wireless terminal 100 The end position information as a text or binary form in conjunction with the wireless processing section is characterized by transmitting to the server (or terminal).

According to an embodiment of the present invention, the information transmitter converts the final location information of the wireless terminal 100 extracted from the memory unit into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. The final location information of the converted wireless terminal 100 may be included in a predetermined short message and transmitted to the server (or terminal) via the base station on the wireless communication network through the wireless processing unit.

According to another exemplary embodiment of the present invention, the information transmitter shows final position information of the wireless terminal 100 extracted from the memory unit in response to the GPS protocol based on the IS-801 standard shown in FIG. Converts the binary data to be substituted into the response data, and substitutes the final position information of the converted wireless terminal 100 into the response data shown in FIG. 4 and passes the base station on the wireless communication network through the wireless processing unit. It is preferable to transmit to (or terminal).

According to the exemplary embodiment of the present invention, in the state where the positioning mode of the wireless terminal 100 is switched (or maintained) to the positioning information storage mode, the information transmission unit is stored in the memory unit by the information storage unit (or Before (or after) the final location information of the wireless terminal 100 (activated) is transmitted to the server (or terminal), the location positioning unit is connected to the GPS signal receiver to present the current location of the wireless terminal 100. By attempting to position the location information in real time, it is preferable to switch the positioning mode of the wireless terminal 100 to the GPS positioning mode.

2 is a diagram illustrating a protocol structure for transmitting and receiving wireless terminal position information between a wireless terminal and a base station for continuous GPS position tracking according to an embodiment of the present invention.

In more detail, FIG. 2 illustrates the location of the wireless terminal 100 between the wireless terminal 100 and the base station for the continuous GPS location tracking through a data burst message (DBM) among L3 messages of the CDMA 2000 standard. For the IS-801 standard-based protocol structure for transmitting and receiving information, those skilled in the art to which the present invention pertains, refer to and / or modify the present Figure 2 to the radio for the continuous GPS location tracking Although it is possible to infer an implementation method for various protocol structures for transmitting and receiving the location information of the wireless terminal 100 between the terminal 100 and the base station, the present invention includes all the inferred implementation methods. It is not limited to the implementation method shown by.

Referring to FIG. 2 according to the embodiment of the present invention, the data burst message including the location information of the wireless terminal 100 includes an MSG_NUMBER field of 8 bits, a BURST_TYPE field of 6 bits, a NUM_MSGS field of 6 bits, And a CHARi field including an 8-bit NUM_FIELDS field and location information of the wireless terminal 100 corresponding to the IS-801 standard.

Those skilled in the art will be familiar with the technical features and roles of the MSG_NUMBER field, BURST_TYPE field, NUM_MSGS field, and NUM_FIELDS field in the data burst message. Omit for convenience.

Referring to the IS-801 standard according to the embodiment of the present invention, the CHARi field including the location information of the wireless terminal 100 may include, in more detail, a 1-bit SESS_START field, a 1-bit SESS_END field, and a 1-bit field. It includes a SESS_SOURCE field, a 5-bit SESS_TAG field, an 8-bit PD_MSG_TYPE field, a 4-bit NUM_REQUESTS field, a 4-bit NUM_RESPONSES field, and a maximum of 2024-bit request / response data (REQ_DATA / RESP_DATA) fields. It features.

Here, the SESS_START field is if the position information of the wireless terminal 100 transmitted / received through the data burst message is related to the position information of the wireless terminal 100 previously transmitted / received (for example, the position of the wireless terminal 100 previously transmitted / received). If connected with information), it is set to '0', otherwise (for example, if the new wireless terminal 100 transmits and receives location information), the SESS_START field is set to '1'.

In addition, the SESS_END field may be transmitted and received after at least one location information of the at least one related wireless terminal 100 after the location information of the wireless terminal 100 transmitted and received through the data burst message (for example, the wireless terminal 100 to be transmitted and received next time). If connected with the location information, it is set to '0', otherwise (for example, if the transmission and reception of the location information of the wireless terminal 100 is completed by transmitting and receiving this data burst message), the SESS_START field is set to '1'. do.

In addition, the SESS_SOURCE field is set to '1' if the SESS_START field is set to '1', otherwise the SESS_SOURCE field is set to the same bit value as the SESS_SOURCE field included in the data burst message previously transmitted and received. do.

In addition, when the SESS_TAG field is set to '0', the SESS_TAG field is set to the same bit value as the SESS_TAG field included in a previously transmitted and received data burst message. Otherwise, the SESS_TAG field is recently set to 'SESS_START' field. Set to 1 'and set to the value assigned to the transmitted field.

In addition, the PD_MSG_TYPE field is a Position Determination message format and is set to a bit value '00000000'.

In addition, the NUM_REQUESTS field includes the number of request parameter records included in the request / response data field, and the number of request parameter records has a value of '0' to '15'.

In addition, the NUM_RESPONSES field includes the number of response parameter records included in the request / response data field, and the number of response parameter records has a value of '0' to '15'.

The request / response data field may include as many request data and / or response data as the number included in the NUM_REQUESTS field.

3 illustrates a request data structure for continuous GPS location tracking according to an embodiment of the present invention.

In more detail, FIG. 3 illustrates a request data structure included in the request / response data field based on an IS-801 standard in the protocol structure between the wireless terminal 100 and the base station shown in FIG. Those skilled in the art may refer to and / or modify this drawing to implement the request data structure included in the protocol structure between the wireless terminal 100 and the base station for the continuous GPS location tracking. The method may be inferred, but the present invention includes all the inferred implementation methods, and is not limited to the implementation method shown in FIG.

Referring to the IS-801 standard according to the embodiment of the present invention, request data included in the request / response data field includes 4 bits of reserved bits, 4 bits of REQ_TYPE, and 8 bits of REQ_PAR_LEN. And REQ_PAR_RECORD corresponding to a multiple of 8 of the number corresponding to REQ_PAR_LEN.

Here, the REQ_TYPE includes a 4-bit code value for setting the request data format between the wireless terminal 100 and the base station. For the preset value of the preset request data format, refer to the IS-801 standard.

Also, the REQ_PAR_LEN is a length of a request parameter record included in the REQ_PAR_RECORD and includes a maximum of 255 values.

The REQ_PAR_LEN is a request parameter record corresponding to the REQ_TYPE. The request parameter record corresponding to the preset request data format refers to the IS-801 standard.

4 is a diagram illustrating a response data structure for continuous GPS location tracking according to an embodiment of the present invention.

In more detail, FIG. 4 is a response data structure included in the request / response data field based on the IS-801 standard in the protocol structure between the radio terminal 100 and the base station shown in FIG. Those skilled in the art may refer to and / or modify this drawing to implement a response data structure included in the protocol structure between the wireless terminal 100 and the base station for the continuous GPS location tracking. The method may be inferred, but the present invention includes all the inferred implementation methods, and is not limited to the implementation method shown in FIG.

Referring to the IS-801 standard according to the embodiment of the present invention, response data included in the request / response data field includes three bits of reserved bits, one bit of UNSOL_RESP, four bits of RESP_TYPE, and the like. , 8-bit RESP_PAR_LEN, and RESP_PAR_RECORD corresponding to a multiple of 8 of the number corresponding to the RESP_PAR_LEN.

Here, the UNSOL_RESP distinguishes whether the response data is the requested response data or the unsolicited response data. The UNSOL_RESP is set to '0' for the requested response data and '1' for the unsolicited response data.

In addition, the RESP_TYPE includes a 4-bit code value for setting the response data format between the wireless terminal 100 and the base station, and the setting value for the preset response data format refers to the IS-801 standard.

The RESP_PAR_LEN is a length of a response parameter record included in the RESP_PAR_RECORD and includes a maximum of 255 values.

In addition, the RESP_PAR_LEN is a response parameter record corresponding to the RESP_TYPE, and the response parameter record corresponding to the preset response data format refers to the IS-801 standard.

According to an embodiment of the present invention, the memory unit shown in FIG. 1 may be used for the continuous GPS position tracking in addition to the RESP_TYPE defined in the IS-801 standard (or a spare area among the RESP_TYPE defined in the IS-801 standard). It is desirable to define a new RESP_TYPE for transmitting the last position information of the stored wireless terminal 100.

In addition, the response parameter record corresponding to the defined RESP_TYPE for the continuous GPS position tracking, the storage data flag, storage time information, transmission frequency information, battery remaining information and at least one location information of the wireless terminal 100 It is desirable to define to include.

Here, the stored data flag is the wireless terminal (100) stored in the memory unit provided in the wireless terminal 100 of the position information transmitted from the wireless terminal 100 to the server (or terminal) shown in FIG. A flag for setting whether the location information is the final location information of the 100 or the real time (or current) location information for the GPS signal receiver and the location location unit provided in the wireless terminal 100 shown in FIG. If the position information transmitted from the terminal 100 to the server (or terminal) is the final position information of the wireless terminal 100 stored in the memory unit shown in FIG. 1, the position information has a value of 'true', otherwise, 'false' Has a value.

In addition, the storage time information, when the storage data flag is 'true', the time when the last position information of the wireless terminal 100 is stored in the memory unit provided in the wireless terminal 100 shown in FIG. Or elapsed time since stored), when the wireless terminal 100 moves, the larger the storage time, the wireless terminal 100 stored in a memory unit provided in the wireless terminal 100 shown in FIG. Accuracy of the final position information of

In addition, when the stored data flag is 'true', the transmission frequency information is stored in the memory unit shown in FIG. 1 from the radio terminal 100 shown in FIG. 1 to a server (or a terminal). As the number of times the last position information of the terminal 100 is transmitted, it is preferably added whenever the last position information of the same radio terminal 100 stored in the memory unit is transmitted from the radio terminal 100.

In addition, when the stored data flag is 'true', the battery remaining information is stored in the memory unit illustrated in FIG. 1 from the wireless terminal 100 shown in FIG. 1 to a server (or a terminal). When transmitting the final position information of the 100, the size of the residual power (or residual power) of the battery provided in the wireless terminal 100, whereby the server (or terminal) is the wireless terminal shown in Figure 1 100 may predict the remaining time for transmitting the final position information of the wireless terminal 100.

According to the exemplary embodiment of the present invention, the server (or the terminal) is inaccurate with respect to the final position information of the wireless terminal 100 transmitted from the wireless terminal 100 based on the storage time information and the transmission frequency information. When it is determined that the battery pack is determined to be low, it is determined whether the current location of the wireless terminal 100 can be measured once more by the wireless terminal 100 by reading the remaining battery information. As a result of the determination, the current position of the wireless terminal 100 is determined. If it is possible to further locate, once the current position of the wireless terminal 100 to the wireless terminal 100 through the predetermined request data included in the request / response data field corresponding to the IS-801 standard. It can be requested to send more positioning, in which case the storage time information and the transmission frequency information is initialized.

In addition, the location information of the wireless terminal 100 includes the final location information of the wireless terminal 100 stored in the memory unit in the storage time in the wireless terminal 100 shown in FIG. It is preferable.

According to another exemplary embodiment of the present invention, the location information of the wireless terminal 100 is not included in the RESP_TYPE defined for the continuous GPS location tracking, but is included in the RESP_TYPE for conventional location information transmission to the server (or terminal). It may be transmitted to, by which the present invention is not limited.

5 is a diagram illustrating an operation process of setting a positioning mode of the wireless terminal 100 for continuous GPS location tracking according to an embodiment of the present invention.

In more detail, in FIG. 5, when a predetermined power is supplied to the wireless terminal 100 shown in FIG. 1 to perform a system booting procedure, a predetermined positioning command is confirmed in the wireless terminal 100. The present invention relates to a process of performing a predetermined GPS-based positioning in response to the positioning command and switching (or setting) the positioning mode of the wireless terminal 100 to the GPS positioning mode. Those skilled in the art will be able to infer various implementation methods for the operation process of setting the positioning mode of the wireless terminal 100 for the continuous GPS location tracking by referring to and / or modifying the present invention. The present invention includes all implementation methods inferred above, and the technical features are not limited only to the implementation method illustrated in FIG. 5.

For example, in FIG. 5, the positioning command includes transmitting location information of the wireless terminal 100 calculated through GPS-based positioning in the wireless terminal 100 to a predetermined server (or terminal). However, the present invention is not limited thereto, and the location information of the wireless terminal 100 may be used in the LBS service provided through the wireless terminal 100 without being transmitted to the server (or terminal). The present invention is characterized in that it comprises an implementation method wherein the location information of the wireless terminal 100 is used inside the wireless terminal 100 as described above.

Referring to FIG. 5, when a predetermined power is supplied to the wireless terminal 100 shown in FIG. 1 to perform a system booting procedure, the wireless terminal 100 is in a detailed system setting state and a pilot channel according to the booting procedure. Set to an operation mode corresponding to the " mobile station initialization state " including the acquisition detail state, synchronization channel acquisition detail state, and timing conversion detail state (500), and supplying power to the screen output device provided in the wireless terminal (100). Activates the screen output function (505) and executes at least one auto-run function (or reservation function) corresponding to the " mobile station initialization state " setting (510).

Thereafter, the wireless terminal 100 switches to each operation mode corresponding to a "mobile station call waiting state", "system access state", or "call channel state", thereby providing uniqueness of the wireless terminal 100. Perform a function (e.g., a voice call function) and at least one additional service function (e.g., a data communication function, or a multimedia playback function), and perform a "mobile station call waiting state" or "system access state" as described above, and While providing at least one function (or service) corresponding to each operation mode corresponding to the "call channel state" and the like, the wireless terminal 100 to the wireless terminal 100 through a predetermined key input means; The positioning command corresponding to the corresponding at least one LBS service is input, and / or from the base station to which the radio terminal 100 and the predetermined radio channel are connected, Whether the positioning command corresponding to the at least one LBS service corresponding to the terminal 100 is received in the request data shown in FIG. 3 corresponding to the GPS protocol based on the IS-801 standard shown in FIG. Check (515).

If the GPS-based positioning command is confirmed (520), the wireless terminal 100 receives at least one GPS satellite signal from at least one GPS satellite located on the line of sight, and the received at least one GPS satellite A signal (or at least one satellite data corresponding to the GPS satellite signal) is read to determine whether the wireless terminal 100 satisfies the GPS-based positioning condition (525), and the checking is performed on the wireless terminal 100 Is repeated until the GPS-based positioning condition is satisfied.

According to an embodiment of the present invention, the GPS positioning requires receiving the GPS satellite signals from a total of four or more GPS satellites including three GPS satellites for triangulation and one GPS satellite for time error correction. The wireless terminal 100 checks the number of at least one GPS hypocrisy signal (or at least one satellite data corresponding to the GPS satellite signals) received from at least one GPS satellite located on the line of sight, thereby allowing the wireless terminal to It is preferable to check whether the number of GPS satellites located on the visible line of 100 is 4 or more.

If the number of GPS satellites located on the visible line of the wireless terminal 100 is 4 or more, the wireless terminal 100 confirms that the wireless terminal 100 satisfies the GPS-based positioning condition. On the contrary, if the number of GPS satellites located on the visible line of the wireless terminal 100 is less than four, the wireless terminal 100 does not satisfy the GPS-based positioning condition of the wireless terminal 100. It is preferable to confirm that it is.

If it is determined that the wireless terminal 100 satisfies the GPS-based positioning conditions (530), the wireless terminal 100 corresponds to at least four GPS satellite signals satisfying the GPS-based positioning conditions. The current position information of the wireless terminal 100 is calculated through at least four satellite data (535).

According to an embodiment of the present invention, the wireless terminal 100 is based on at least four or more satellite data corresponding to at least four or more GPS satellite signals received from at least one or more GPS satellites. Calculate the current position information of the wireless terminal 100 by positioning the position, for this purpose, the wireless terminal 100 is mounted on a predetermined GPS chip (for example, after the MSM 3300 modem chip) provided in the modem chip It is preferably made of a "gpsONE" chip) and / or comprises a program code for positioning the GPS recorded on the recording medium provided in the wireless terminal (100).

According to an embodiment of the present invention, the wireless terminal 100 is based on a GPS satellite signal received from at least one or more GPS satellites positioned on a visible line at a current position of the wireless terminal 100. It is preferable to calculate the current location information of the wireless terminal 100 through a simple GPS positioning method for positioning the current location of (100).

According to another embodiment of the present invention, the wireless terminal 100, DGPS (Differential GPS) positioning method for correcting the error of the current position of the wireless terminal 100 calculated by the simple GPS positioning method, or It is preferable to calculate current location information of the wireless terminal 100 through at least one or more of an A-GPS (Assisted-GPS) positioning method or a double differential GPS positioning method. For the wireless processor to receive at least one position error correction information for correcting the error of the current position of the radio terminal 100 by the simple GPS positioning method from at least one base station in accordance with the IS-801 standard. desirable.

Those skilled in the art to which the present invention pertains, the wireless terminal 100 is at least one of a simple GPS positioning method, a DGPS positioning method, A-GPS positioning method, or a positioning method by a dual difference method. Since it will be familiar with the technical features for calculating the current position information of the wireless terminal 100 through the positioning method, a detailed description thereof will be omitted for convenience.

If the current position information of the wireless terminal 100 is calculated (540), the wireless terminal 100 switches (or sets) the positioning mode of the wireless terminal 100 to the GPS positioning mode (545), and The calculated current position information of the wireless terminal 100 is transmitted to the server (or terminal) in text or binary form (550).

According to an embodiment of the present invention, the wireless terminal 100 converts the current location information of the real-time location of the wireless terminal 100 into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. The final location information of the converted wireless terminal 100 may be included in a predetermined short message and transmitted to the server (or terminal) via a base station on the wireless communication network.

According to another exemplary embodiment of the present invention, the wireless terminal 100 corresponds to the GPS protocol based on the IS-801 standard shown in FIG. Converts the binary data to be substituted into the response data shown in FIG. 2 and substitutes the final position information of the converted wireless terminal 100 into the response data shown in FIG. Terminal).

6 is a diagram illustrating an operation process of transmitting location information in each positioning mode of the wireless terminal 100 for continuous GPS location tracking according to an embodiment of the present invention.

In more detail, in FIG. 6, the positioning mode of the wireless terminal 100 is switched to (or set) the positioning mode of the wireless terminal 100 through the positioning mode setting process shown in FIG. 5 in the wireless terminal 100 shown in FIG. After that, according to the number of GPS satellites located on the line of sight of the wireless terminal 100, the wireless terminal 100 is switched (or maintained) to the GPS positioning mode or the location information storage mode. This is about the process of transmitting the location information of a) to a predetermined server (or terminal), if one of ordinary skill in the art to which the present invention pertains, the continuous GPS location tracking by referring to and / or modified in this figure In order to be able to infer various implementation methods for the operation process of transmitting the location information in each positioning mode of the wireless terminal 100, the present invention is made to include all the inferred implementation methods, Only the exemplary method shown in plane 6 is not limited that technical feature.

For example, in FIG. 6, the positioning command includes transmitting location information of the wireless terminal 100 calculated through GPS-based positioning from the wireless terminal 100 to a predetermined server (or terminal). However, the present invention is not limited thereto, and the location information of the wireless terminal 100 may be used in the LBS service provided through the wireless terminal 100 without being transmitted to the server (or terminal). The present invention is characterized in that it comprises an implementation method wherein the location information of the wireless terminal 100 is used inside the wireless terminal 100 as described above.

Referring to FIG. 6, the positioning mode of the wireless terminal 100 is switched (or set) to the GPS positioning mode through the positioning mode setting process shown in FIG. 5 in the wireless terminal 100 shown in FIG. 1. Thereafter, the wireless terminal 100 checks whether the next GPS-based positioning is necessary in response to the positioning command corresponding to the positioning mode setting shown in FIG. 5 (600), or wirelessly via a predetermined key input means. A positioning command corresponding to at least one or more LBS services corresponding to the terminal 100 is input, and / or from the base station to which the wireless terminal 100 and the predetermined wireless channel are connected, at least corresponding to the wireless terminal 100. Check whether the positioning command corresponding to one or more LBS services is received by being included in the request data shown in FIG. 3 corresponding to the IS-801 standard-based GPS protocol shown in FIG. And 600.

If the GPS-based positioning is necessary (or confirmed by the GPS-based positioning command) (605), the wireless terminal 100 receives at least one GPS satellite signal from at least one GPS satellite located on the line of sight. The received at least one GPS satellite signal (or at least one satellite data corresponding to the GPS satellite signal) is read to determine whether the wireless terminal 100 satisfies the GPS-based positioning condition (610).

According to an embodiment of the present invention, the GPS positioning requires receiving the GPS satellite signals from a total of four or more GPS satellites including three GPS satellites for triangulation and one GPS satellite for time error correction. The wireless terminal 100 checks the number of at least one GPS hypocrisy signal (or at least one satellite data corresponding to the GPS satellite signals) received from at least one GPS satellite located on the line of sight, thereby allowing the wireless terminal to It is preferable to check whether the number of GPS satellites located on the visible line of 100 is 4 or more.

If the number of GPS satellites located on the visible line of the wireless terminal 100 is 4 or more, the wireless terminal 100 confirms that the wireless terminal 100 satisfies the GPS-based positioning condition. On the contrary, if the number of GPS satellites located on the visible line of the wireless terminal 100 is less than four, the wireless terminal 100 does not satisfy the GPS-based positioning condition of the wireless terminal 100. It is preferable to confirm that it is.

If the wireless terminal 100 does not determine that the GPS-based positioning condition is satisfied (615), the wireless terminal 100 is positioned in the previous GPS positioning mode (for example, the positioning mode shown in FIG. 5). The current position information of the wireless terminal 100, which is measured in the setting process, is processed as the final position information of the wireless terminal 100 and stored in the memory unit 620, and the positioning mode of the wireless terminal 100 is stored. Switch to (or hold) the location information storage mode (625).

Thereafter, the wireless terminal 100 extracts the final position information of the wireless terminal 100 from the memory unit (or checks the final position information of the wireless terminal 100 stored in the memory unit) (630), The final location information of the extracted wireless terminal 100 is transmitted to the server (or terminal) in text or binary form (635).

According to an embodiment of the present invention, the wireless terminal 100 converts the final location information of the extracted wireless terminal 100 into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. Preferably, the final location information of the converted wireless terminal 100 is included in a predetermined short message and transmitted to the server (or terminal) via a base station on the wireless communication network.

According to another exemplary embodiment of the present invention, the wireless terminal 100 corresponds to the GPS protocol based on the IS-801 standard shown in FIG. 2 to obtain final position information of the extracted wireless terminal 100. Convert the binary data to be substituted into the response data shown, and substitute the final position information of the converted wireless terminal 100 into the response data shown in Figure 4 through the base station on the wireless communication network through the server (or terminal) Is preferred.

If it is determined in the wireless terminal 100 that the GPS-based positioning conditions are satisfied (615), the wireless terminal 100 corresponds to at least four GPS satellite signals satisfying the GPS-based positioning conditions. The current location information of the wireless terminal 100 is calculated through at least four satellite data (640).

According to an embodiment of the present invention, the wireless terminal 100 is based on at least four or more satellite data corresponding to at least four or more GPS satellite signals received from at least one or more GPS satellites. Calculate the current position information of the wireless terminal 100 by positioning the position, for this purpose, the wireless terminal 100 is mounted on a predetermined GPS chip (for example, after the MSM 3300 modem chip) provided in the modem chip It is preferably made of a "gpsONE" chip) and / or comprises a program code for positioning the GPS recorded on the recording medium provided in the wireless terminal (100).

According to an embodiment of the present invention, the wireless terminal 100 is based on a GPS satellite signal received from at least one or more GPS satellites positioned on a visible line at a current position of the wireless terminal 100. It is preferable to calculate the current location information of the wireless terminal 100 through a simple GPS positioning method for positioning the current location of (100).

According to another embodiment of the present invention, the wireless terminal 100, DGPS (Differential GPS) positioning method for correcting the error of the current position of the wireless terminal 100 calculated by the simple GPS positioning method, or It is preferable to calculate current location information of the wireless terminal 100 through at least one or more of an A-GPS (Assisted-GPS) positioning method or a double differential GPS positioning method. For the wireless processor to receive at least one position error correction information for correcting the error of the current position of the radio terminal 100 by the simple GPS positioning method from at least one base station in accordance with the IS-801 standard. desirable.

Those skilled in the art to which the present invention pertains, the wireless terminal 100 is at least one of a simple GPS positioning method, a DGPS positioning method, A-GPS positioning method, or a positioning method by a dual difference method. Since it will be familiar with the technical features for calculating the current position information of the wireless terminal 100 through the positioning method, a detailed description thereof will be omitted for convenience.

If the current position information of the wireless terminal 100 is calculated (645), the wireless terminal 100 switches (or maintains) the wireless terminal 100 positioning mode to the GPS positioning mode (650), and The calculated current position information of the wireless terminal 100 is transmitted to the server (or terminal) in the form of text or binary (655).

According to an embodiment of the present invention, the wireless terminal 100 converts the current location information of the real-time location of the wireless terminal 100 into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. The final location information of the converted wireless terminal 100 may be included in a predetermined short message and transmitted to the server (or terminal) via a base station on the wireless communication network.

According to another exemplary embodiment of the present invention, the wireless terminal 100 corresponds to the GPS protocol based on the IS-801 standard shown in FIG. 2 by using the current location information of the real-time positioning wireless terminal 100 in FIG. Converts the binary data to be substituted into the response data shown in FIG. 2 and substitutes the final position information of the converted wireless terminal 100 into the response data shown in FIG. Terminal).

Thereafter, the wireless terminal 100 checks whether the GPS-based positioning function is released (660).

If the GPS-based positioning function is not released (eg, the GPS-based positioning function is not normally terminated) 665, the wireless terminal 100 receives the GPS satellite signal to satisfy the GPS-based positioning condition. After checking whether or not, and repeating the conversion of the positioning mode of the wireless terminal 100 to the GPS positioning mode or the location information storage mode.

On the other hand, if the GPS-based positioning function is released (for example, when the GPS-based positioning function is normally terminated) (665), the wireless terminal 100 receives the final position information of the wireless terminal 100 stored in the memory unit. Delete (670).

7 is a diagram illustrating an operation process of setting a positioning mode of the wireless terminal 100 for continuous GPS location tracking according to another embodiment of the present invention.

In more detail, in FIG. 7, when a predetermined power is supplied to the wireless terminal 100 shown in FIG. 1 to perform a system booting procedure, a predetermined positioning command is confirmed in the wireless terminal 100. In response to the positioning command, a predetermined GPS-based positioning is performed, and after switching (or setting) the positioning mode of the wireless terminal 100 to the GPS positioning mode, the current position information of the wireless terminal 100 is displayed. This is a process for processing the final position information of the deactivated wireless terminal 100 and storing it in a memory unit provided in the wireless terminal 100. Those skilled in the art to which the present invention pertains, By referring to and / or modifying 7, it is possible to infer various implementation methods for the operation process of setting the positioning mode of the wireless terminal 100 for the continuous GPS location tracking. It is made, including the method when, to which the technical feature that is not limited to the exemplary method shown in the figure 7.

For example, in FIG. 7, the positioning command includes transmitting location information of the wireless terminal 100 calculated through GPS-based positioning in the wireless terminal 100 to a predetermined server (or terminal). However, the present invention is not limited thereto, and the location information of the wireless terminal 100 may be used in the LBS service provided through the wireless terminal 100 without being transmitted to the server (or terminal). The present invention is characterized in that it comprises an implementation method wherein the location information of the wireless terminal 100 is used inside the wireless terminal 100 as described above.

Referring to FIG. 7, when a predetermined power is supplied to the wireless terminal 100 shown in FIG. 1 to perform a system booting procedure, the wireless terminal 100 is in a detailed system setting state and a pilot channel according to the booting procedure. Set to an operation mode corresponding to a "mobile station initialization state" including an acquisition detail state, a synchronization channel acquisition detail state, and a timing conversion detail state (700), and supply power to the screen output device provided in the wireless terminal (100). In step 710, the screen output function is activated, and at least one automatic execution function (or a reservation function) corresponding to the "mobile station initialization state" setting is executed (710).

Thereafter, the wireless terminal 100 switches to each operation mode corresponding to a "mobile station call waiting state", "system access state", or "call channel state", thereby providing uniqueness of the wireless terminal 100. Perform a function (e.g., voice call function) and at least one additional service function (e.g., data communication function, or multimedia playback function), and as described above, "mobile station call waiting state", or "system access state", or While providing at least one function (or service) corresponding to each operation mode corresponding to a "call channel state" or the like, the wireless terminal 100 corresponds to the wireless terminal 100 through a predetermined key input means. A positioning command corresponding to at least one LBS service is input, and / or from the base station to which the wireless terminal 100 is connected to a predetermined wireless channel, Check whether the positioning command corresponding to the at least one LBS service corresponding to the terminal 100 is received in the request data shown in FIG. 3 corresponding to the GPS protocol based on the IS-801 standard shown in FIG. (715).

If the GPS-based positioning command is confirmed (720), the wireless terminal 100 receives at least one GPS satellite signal from at least one GPS satellite located on a visible line, and the received at least one GPS satellite is received. A signal (or at least one satellite data corresponding to the GPS satellite signal) is read to determine whether the wireless terminal 100 satisfies the GPS-based positioning condition (725), and the checking process is performed on the wireless terminal 100. Is repeated until the GPS-based positioning condition is satisfied.

According to an embodiment of the present invention, the GPS positioning requires receiving the GPS satellite signals from a total of four or more GPS satellites including three GPS satellites for triangulation and one GPS satellite for time error correction. The wireless terminal 100 checks the number of at least one GPS hypocrisy signal (or at least one satellite data corresponding to the GPS satellite signals) received from at least one GPS satellite located on the line of sight, thereby allowing the wireless terminal to It is preferable to check whether the number of GPS satellites located on the visible line of 100 is 4 or more.

If the number of GPS satellites located on the visible line of the wireless terminal 100 is 4 or more, the wireless terminal 100 confirms that the wireless terminal 100 satisfies the GPS-based positioning condition. On the contrary, if the number of GPS satellites located on the visible line of the wireless terminal 100 is less than four, the wireless terminal 100 does not satisfy the GPS-based positioning condition of the wireless terminal 100. It is preferable to confirm that it is.

If it is determined that the wireless terminal 100 satisfies the GPS-based positioning conditions (730), the wireless terminal 100 corresponds to at least four GPS satellite signals satisfying the GPS-based positioning conditions. The current position information of the wireless terminal 100 is calculated through at least four satellite data (735).

According to an embodiment of the present invention, the wireless terminal 100 is based on at least four or more satellite data corresponding to at least four or more GPS satellite signals received from at least one or more GPS satellites. Calculate the current position information of the wireless terminal 100 by positioning the position, for this purpose, the wireless terminal 100 is mounted on a predetermined GPS chip (for example, after the MSM 3300 modem chip) provided in the modem chip It is preferably made of a "gpsONE" chip) and / or comprises a program code for positioning the GPS recorded on the recording medium provided in the wireless terminal (100).

According to an embodiment of the present invention, the wireless terminal 100 is based on a GPS satellite signal received from at least one or more GPS satellites positioned on a visible line at a current position of the wireless terminal 100. It is preferable to calculate the current position information of the wireless terminal 100 through a simple GPS positioning method for positioning the current position of (100).

According to another embodiment of the present invention, the wireless terminal 100, DGPS (Differential GPS) positioning method for correcting the error of the current position of the wireless terminal 100 calculated by the simple GPS positioning method, or It is preferable to calculate current location information of the wireless terminal 100 through at least one or more of an A-GPS (Assisted-GPS) positioning method or a double differential GPS positioning method. For the wireless processor to receive at least one position error correction information for correcting the error of the current position of the radio terminal 100 by the simple GPS positioning method from at least one base station in accordance with the IS-801 standard. desirable.

Those skilled in the art to which the present invention pertains, the wireless terminal 100 is at least one of a simple GPS positioning method, a DGPS positioning method, A-GPS positioning method, or a positioning method by a dual difference method. Since it will be familiar with the technical features for calculating the current position information of the wireless terminal 100 through the positioning method, a detailed description thereof will be omitted for convenience.

If the current position information of the wireless terminal 100 is calculated (740), the wireless terminal 100 switches (or sets) the positioning mode of the wireless terminal 100 to the GPS positioning mode (745), The calculated current position information of the wireless terminal 100 is transmitted to the server (or terminal) in text or binary form (750), and the deactivated wireless terminal (100) is deactivated. 100 is processed as the final position information and stored in the memory unit (755).

According to an embodiment of the present invention, the wireless terminal 100 converts the current location information of the real-time location of the wireless terminal 100 into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. The final location information of the converted wireless terminal 100 may be included in a predetermined short message and transmitted to the server (or terminal) via a base station on the wireless communication network.

According to another exemplary embodiment of the present invention, the wireless terminal 100 corresponds to the GPS protocol based on the IS-801 standard shown in FIG. 2 by using the current location information of the real-time positioning wireless terminal 100 in FIG. Converts the binary data to be substituted into the response data shown in FIG. 2 and substitutes the final position information of the converted wireless terminal 100 into the response data shown in FIG. Terminal).

8 is a diagram illustrating an operation of transmitting location information in each positioning mode of the wireless terminal 100 for continuous GPS location tracking according to another exemplary embodiment of the present invention.

In more detail, FIG. 8 illustrates that the positioning mode of the wireless terminal 100 switches to (or sets) the positioning mode of the wireless terminal 100 through the positioning mode setting process shown in FIG. 7 in the wireless terminal 100 shown in FIG. After that, according to the number of GPS satellites located on the line of sight of the wireless terminal 100, the wireless terminal 100 is switched (or maintained) to the GPS positioning mode or the location information storage mode. This is about the process of transmitting the location information of a) to a predetermined server (or terminal), if one of ordinary skill in the art to which the present invention pertains, the continuous GPS location tracking by referring to and / or modified in this figure 8 In order to be able to infer various implementation methods for the operation process of transmitting the location information in each positioning mode of the wireless terminal 100, the present invention is made to include all the inferred implementation methods, Only the exemplary method shown in plane 8 is not limited that the technical features.

For example, in FIG. 8, the positioning command includes transmitting location information of the wireless terminal 100 calculated through GPS-based positioning in the wireless terminal 100 to a predetermined server (or terminal). However, the present invention is not limited thereto, and the location information of the wireless terminal 100 may be used in the LBS service provided through the wireless terminal 100 without being transmitted to the server (or terminal). The present invention is characterized in that it comprises an implementation method wherein the location information of the wireless terminal 100 is used inside the wireless terminal 100 as described above.

Referring to FIG. 8, the positioning mode of the wireless terminal 100 is switched (or set) to the GPS positioning mode through the positioning mode setting process shown in FIG. 7 in the wireless terminal 100 shown in FIG. 1. Thereafter, the wireless terminal 100 checks whether the next GPS-based positioning is necessary in response to the positioning command corresponding to the positioning mode setting shown in FIG. 7 (800), or wirelessly via a predetermined key input means. A positioning command corresponding to at least one or more LBS services corresponding to the terminal 100 is input, and / or from the base station to which the wireless terminal 100 and the predetermined wireless channel are connected, at least corresponding to the wireless terminal 100. Check whether the positioning command corresponding to one or more LBS services is received by being included in the request data shown in FIG. 3 corresponding to the IS-801 standard-based GPS protocol shown in FIG. And 800. The

If the GPS-based positioning is necessary (or confirmed by the GPS-based positioning command) (805), the wireless terminal 100 receives at least one GPS satellite signal from at least one GPS satellite located on the line of sight and The received at least one GPS satellite signal (or at least one satellite data corresponding to the GPS satellite signal) is read to determine whether the wireless terminal 100 satisfies the GPS-based positioning condition (810).

According to an embodiment of the present invention, the GPS positioning requires receiving the GPS satellite signals from a total of four or more GPS satellites including three GPS satellites for triangulation and one GPS satellite for time error correction. The wireless terminal 100 checks the number of at least one GPS hypocrisy signal (or at least one satellite data corresponding to the GPS satellite signals) received from at least one GPS satellite located on the line of sight, thereby allowing the wireless terminal to It is preferable to check whether the number of GPS satellites located on the visible line of 100 is 4 or more.

If the number of GPS satellites located on the visible line of the wireless terminal 100 is 4 or more, the wireless terminal 100 confirms that the wireless terminal 100 satisfies the GPS-based positioning condition. On the contrary, if the number of GPS satellites located on the visible line of the wireless terminal 100 is less than four, the wireless terminal 100 does not satisfy the GPS-based positioning condition of the wireless terminal 100. It is preferable to confirm that it is.

If the wireless terminal 100 does not determine that the GPS-based positioning condition is satisfied (815), the wireless terminal 100 is positioned in the previous GPS positioning mode (eg, the positioning mode shown in FIG. 7). In operation 820, it is checked whether final location information of the wireless terminal 100, which is measured in the setting process, is stored in the memory unit.

If the final position information of the wireless terminal 100 is not stored in the memory unit (825), the wireless terminal 100 is at least one GPS from at least one GPS satellite located on the visible line The process of calculating the position information of the wireless terminal 100 by receiving the satellite signal is repeated.

On the other hand, if the final position information of the wireless terminal 100 is stored in the memory unit as a result of the check (825), the wireless terminal 100 switches the positioning mode of the wireless terminal 100 to the positioning information storage mode ( Or maintain (830), and check whether the final location information of the wireless terminal 100 is deactivated and stored in the memory unit (835).

If the final position information of the wireless terminal 100 stored in the memory unit is confirmed to be inactivated (835), the wireless terminal 100 is the final position information of the wireless terminal 100 stored in the memory unit Activate (840), extract final positional information of the wireless terminal 100 from the memory unit (or confirm final positional information of the wireless terminal 100 stored in the memory unit) (845), and extract the The final location information of the wireless terminal 100 is transmitted to the server (or terminal) in text or binary form (850).

On the other hand, if it is confirmed that the final position information of the wireless terminal 100 stored in the memory unit is already activated (835), the wireless terminal 100 extracts the final position information of the wireless terminal 100 from the memory unit. In operation 850, the final location information of the extracted wireless terminal 100 is transmitted to the server (or terminal) in text or binary form (850).

According to an embodiment of the present invention, the wireless terminal 100 converts the final location information of the extracted wireless terminal 100 into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. Preferably, the final location information of the converted wireless terminal 100 is included in a predetermined short message and transmitted to the server (or terminal) via a base station on the wireless communication network.

According to another exemplary embodiment of the present invention, the wireless terminal 100 corresponds to the GPS protocol based on the IS-801 standard shown in FIG. 2 to obtain final position information of the extracted wireless terminal 100. Convert the binary data to be substituted into the response data shown, and substitute the final position information of the converted wireless terminal 100 into the response data shown in Figure 4 through the base station on the wireless communication network through the server (or terminal) Is preferred.

On the other hand, if the wireless terminal 100 determines that the GPS-based positioning condition is satisfied (815), the wireless terminal 100 corresponds to at least four GPS satellite signals satisfying the GPS-based positioning condition. The current location information of the wireless terminal 100 is calculated through at least four satellite data (855).

According to an embodiment of the present invention, the wireless terminal 100 is based on at least four or more satellite data corresponding to at least four or more GPS satellite signals received from at least one or more GPS satellites. Calculate the current position information of the wireless terminal 100 by positioning the position, for this purpose, the wireless terminal 100 is mounted on a predetermined GPS chip (for example, after the MSM 3300 modem chip) provided in the modem chip It is preferably made of a "gpsONE" chip) and / or comprises a program code for positioning the GPS recorded on the recording medium provided in the wireless terminal (100).

According to an embodiment of the present invention, the wireless terminal 100 is based on a GPS satellite signal received from at least one or more GPS satellites positioned on a visible line at a current position of the wireless terminal 100. It is preferable to calculate the current location information of the wireless terminal 100 through a simple GPS positioning method for positioning the current location of (100).

According to another embodiment of the present invention, the wireless terminal 100, DGPS (Differential GPS) positioning method for correcting the error of the current position of the wireless terminal 100 calculated by the simple GPS positioning method, or It is preferable to calculate the current location information of the wireless terminal 100 through at least one or more of the A-GPS (Assisted-GPS) positioning method, or double differential GPS positioning method, To this end, the wireless processing unit receives at least one or more position error correction information for correcting an error of a current position of the radio terminal 100 by the simple GPS positioning method from at least one base station according to the IS-801 standard. It is preferable.

Those skilled in the art to which the present invention pertains, the wireless terminal 100 is at least one of a simple GPS positioning method, a DGPS positioning method, A-GPS positioning method, or a positioning method by a dual difference method. Since it will be familiar with the technical features for calculating the current position information of the wireless terminal 100 through the positioning method, a detailed description thereof will be omitted for convenience.

If the current position information of the wireless terminal 100 is calculated (860), the wireless terminal 100 switches (or maintains) the wireless terminal 100 positioning mode to the GPS positioning mode (865), and In operation 870, it is determined whether current location information of the wireless terminal 100, which has been positioned in the GPS positioning mode, is transmitted to the server (or terminal).

If the current location information of the wireless terminal 100 is not transmitted to the server (or terminal) (875), the wireless terminal 100 checks whether the GPS-based positioning function is released (885), and the GPS Until the GPS-based positioning function is released (890), the GPS satellite signal is received to determine whether the GPS-based positioning condition is satisfied, and the positioning mode of the wireless terminal 100 is determined by the GPS positioning mode. Alternatively, the process of switching to the location information storage mode is repeated.

On the other hand, if the current position information of the wireless terminal 100 is transmitted to the server (or terminal) (875), the wireless terminal 100 transmits the calculated current position information of the wireless terminal 100 in text or binary form. The server transmits to the server (or terminal) (860).

According to an embodiment of the present invention, the wireless terminal 100 converts the current location information of the real-time location of the wireless terminal 100 into text information (eg, character information within 80 bytes) to be included in the USER_DATA area of the short message. The final location information of the converted wireless terminal 100 may be included in a predetermined short message and transmitted to the server (or terminal) via a base station on the wireless communication network.

According to another exemplary embodiment of the present invention, the wireless terminal 100 corresponds to the GPS protocol based on the IS-801 standard shown in FIG. 2 by using the current location information of the real-time positioning wireless terminal 100 in FIG. Converts the binary data to be substituted into the response data shown in FIG. 2 and substitutes the final position information of the converted wireless terminal 100 into the response data shown in FIG. Terminal).

Thereafter, the wireless terminal 100 checks whether the GPS-based positioning function is released (885).

If the GPS-based positioning function is not released (for example, if the GPS-based positioning function is not normally terminated) (890), the wireless terminal 100 receives the GPS satellite signal to satisfy the GPS-based positioning condition. After checking whether or not, and repeating the conversion of the positioning mode of the wireless terminal 100 to the GPS positioning mode or the location information storage mode.

On the other hand, if the GPS-based positioning function is released (for example, when the GPS-based positioning function is normally terminated) (890), the wireless terminal 100 receives the final position information of the wireless terminal 100 stored in the memory unit. Delete (895).

According to the present invention, if four or more GPS satellites are secured on a line of sight of a wireless terminal having a predetermined GPS module, four or more GPS satellite signals are received from the GPS satellites and real-time positioning is performed to determine current location information of the wireless terminal. On the contrary, if four or more GPS satellites are not secured on the line of sight of the radio terminal, by processing the current position information of the radio terminal, which has been previously measured and calculated, as the final position information of the radio terminal, and storing it in a memory. In addition, there is an advantage of providing a location tracking service continuously regardless of the number of GPS satellites secured on the trailing line of the wireless terminal.

According to the present invention, if four or more GPS satellites are secured on a line of sight of a wireless terminal having a predetermined GPS module, four or more GPS satellite signals are received from the GPS satellites and real-time positioning is performed to determine the current location information of the wireless terminal. After calculating the deactivation of the position information and store in a predetermined memory unit, on the contrary, if four or more GPS satellites are not secured on the visible line of the wireless terminal, by activating the position information stored in the memory unit to the final of the wireless terminal By using the location information, there is an advantage of providing a location tracking service continuously regardless of the number of GPS satellites secured on the trailing line of the wireless terminal.

Claims (7)

In a wireless terminal having a predetermined GPS chip (or GPS module), GPS signal receiving means for receiving at least one or more GPS satellite signals from at least one or more GPS satellites located on a visible line; Positioning means for positioning a current position of the wireless terminal through satellite data corresponding to the received at least one GPS satellite signal; Information checking means for reading the received GPS satellite signal and checking whether GPS satellites on the visible line fall from N to (N-1); Information storage means for storing the location information of the wireless terminal previously positioned by the positioning means, in a predetermined memory unit, when the GPS satellites on the visible line fall from N to (N-1) as a result of the checking; And If a predetermined position information transmission command is input before the number of GPS satellites on the line of sight is secured, the wireless terminal position information stored in the memory unit or the wireless terminal position information stored in the memory unit is in a predetermined text or binary form. And information processing means for converting the information into a predetermined server (or terminal) through a base station connected to the wireless terminal and a predetermined wireless channel. In a wireless terminal having a predetermined GPS chip (or GPS module), GPS signal receiving means for receiving at least one or more GPS satellite signals from at least one or more GPS satellites located on a visible line; Positioning means for positioning a current position of the wireless terminal through satellite data corresponding to the received at least one GPS satellite signal; Information storage means for deactivating location information of the located radio terminal and storing the location information in a predetermined memory unit; And information checking means for reading the received GPS satellite signal to check whether the GPS satellites on the visible line fall from N to (N-1). The information storage means, And when the GPS satellites on the visible line fall from N to (N-1) as a result of confirming the information checking means, activating wireless terminal position information stored in the memory unit. The method of claim 2, If a predetermined position information transmission command is input before the number of GPS satellites on the line of sight is secured, the wireless terminal position information stored in the memory unit or the wireless terminal position information stored in the memory unit is in a predetermined text or binary form. And converting the information to a predetermined server (or terminal) through a base station connected with the wireless terminal and a predetermined wireless channel. The method according to claim 1 or 2, If the number of GPS satellites on the visible line is N or more, the positioning mode of the wireless terminal is switched to the GPS positioning mode. When the number of GPS satellites on the line of sight falls to (N-1), the positioning mode of the wireless terminal is changed to the positioning information storage mode. And a positioning mode switching means for switching. The method according to claim 1 or 2, wherein N is, Wireless terminal, characterized in that one of three or more numbers. The method of claim 1 or 2, wherein the wireless terminal, Wireless terminal comprising a mobile phone. A recording medium comprising a program for realizing the function of the radio terminal constituting means of any one of claims 1 to 3.

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