KR100918259B1 - Apparatus and method for providing traffic information and road guide service using cell identifier - Google Patents

Abstract

The present invention relates to an apparatus and a method for providing a traffic information and route information service using a base station cell separator. The communication terminal receiving the communication unit comprises: a cell delimiter determination unit for determining a delimiter of a base station cell in communication; A traffic information request unit which transmits a traffic information request message including a cell delimiter determined by the cell delimiter determination unit to the application device; A traffic information receiver configured to receive road traffic information centering on representative coordinates of the cell separator from the application device; And a display controller configured to display the road traffic information received by the traffic information receiver on a road map.

Mobile communication, directions, traffic information, route guidance, base stations, cells, separators, representative coordinates

Description

Apparatus and method for providing traffic information and route information service using a base station cell identifier {APPARATUS AND METHOD FOR PROVIDING TRAFFIC INFORMATION AND ROAD GUIDE SERVICE USING CELL IDENTIFIER}

The present invention relates to a system and method for providing traffic information and route information using a mobile communication network, and more particularly, to a system and method for providing traffic information and route information using a cell separator in a mobile communication network.

Currently, a navigation terminal for guiding traffic information and route information while a vehicle is driving is widely used. The navigation terminal analyzes the location of the current terminal using a GPS receiver, analyzes the optimal route using the analyzed location and the destination entered by the user, and guides the user to the road traffic speed around the current location. Guide the user. In addition, recently, navigation terminals for analyzing and guiding a user to an optimal route to a destination by reflecting a traffic speed of a road have been developed and spread.

The navigation terminal provides a variety of additional functions such as sound source playback, DMB broadcast viewing, video playback, as well as a simple road guidance, and is gradually becoming larger accordingly. Currently, the most common navigation terminal provides a 7-inch display screen. However, such a navigation terminal has a problem that the size is gradually increased as described above is inconvenient to carry, and most of the navigation terminals are sold at a high price and are not easy to purchase.

Accordingly, a service for providing traffic information and route information to a mobile communication terminal, which is easy to carry and possessed by most people, has been developed and provided. For example, KTF's K-Ways service. The traffic information and route information service using the mobile communication network basically performs a service for a mobile communication terminal having a GPS receiver. That is, when the mobile communication terminal having a GPS receiver transmits the longitude / latitude information measured by the GPS receiver to an application server of a mobile communication network, the application server may transmit the surrounding traffic information and the terminal based on the longitude / latitude information. The optimum route to the destination is analyzed and transmitted to the mobile communication terminal.

As such, the traffic information and route information service using the currently available mobile communication network is provided only to the mobile communication terminal having a GPS receiver. However, a mobile communication terminal with a built-in GPS receiver does not belong to the majority of terminal groups used by mobile communication subscribers. Since the mobile communication terminals owned by the majority of mobile subscribers do not have a built-in GPS receiver, there is a limit in that the traffic information service using the mobile communication network can make low changes for the majority of mobile subscribers.

The present invention has been made to solve the above problems, and provides a system and method for providing traffic information and route information using a mobile communication network that provides traffic information and route information services to a mobile communication terminal that does not have a built-in GPS receiver. The purpose is.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to a first aspect of the present invention, a communication terminal for receiving the road traffic information through a network from an application apparatus for extracting and transmitting road information based on a base station cell is a delimiter of a base station cell in communication. A cell delimiter determining unit for determining a value; A traffic information request unit which transmits a traffic information request message including a cell delimiter determined by the cell delimiter determination unit to the application device; A traffic information receiver configured to receive road traffic information centering on representative coordinates of the cell separator from the application device; And a display controller configured to display the road traffic information received by the traffic information receiver on a road map.

In addition, according to the second aspect of the present invention for achieving the above object, the road traffic information through the network to the communication terminal for receiving and displaying the road traffic information centered on the representative coordinates of the base station cell in communication with the communication Application device for transmitting to the terminal, the storage unit for storing the representative coordinates for the identifiers of the base station cell; A traffic information request receiver for receiving a traffic information request message including a delimiter of a base station cell in communication from the communication terminal; A traffic information extraction unit for querying the representative coordinates of the cell separators included in the traffic information request message in the storage unit and extracting road traffic information based on the representative coordinates; And a traffic information transmitter for transmitting the road traffic information extracted by the traffic information extractor to the communication terminal.

In addition, a method for providing a road traffic information service to a communication terminal in a mobile communication system according to a third aspect of the present invention for achieving the above object, the traffic information request including a separator of the base station cell in communication from the communication terminal Receiving a message; Querying representative coordinates of a cell separator included in the traffic information request message and extracting road traffic information based on the representative coordinates; And transmitting the extracted road traffic information to the communication terminal.

In addition, according to a fourth aspect of the present invention for achieving the above object, a method for providing a route information service from the mobile communication system to the communication terminal to the destination, the route information including the identifier and destination information of the base station cell in communication; Receiving a request message from the communication terminal; Querying representative coordinates of a cell separator included in the route information request message and calculating route information to the destination using the representative coordinates as a starting point; And transmitting the calculated route information to the communication terminal.

The present invention as described above, by using the cell separator to determine the location of the mobile communication terminal according to the traffic information and the road guide information around the terminal, traffic information and even in the mobile communication terminal does not have a built-in GPS receiver By providing a road guidance service, it is possible to make a low change in the traffic information service. In addition, the mobile carrier has an effect that can increase sales by providing additional services in addition to the basic services such as the existing voice call.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of a traffic information providing system using a mobile communication network according to an embodiment of the present invention.

As shown in FIG. 1, the traffic information providing system according to the present invention includes a mobile communication terminal 110 and an application server 130, and the mobile communication terminal 110 and the application server 130 move. Connected through the communication network 120 to communicate with each other. The mobile communication network 120 is a network composed of a base station, a base station controller, a switch, and the like, and thus a detailed description thereof will be omitted.

The mobile communication terminal 110 communicates with a base station of the mobile communication network 120 to perform functions such as voice / video call and text message transmission and reception. The mobile terminal 110 analyzes the cell information of the base station that is currently serving by using the information received from the base station currently communicating, and transmits a traffic information request message including the analyzed cell information to the application server 130 It receives the real-time surrounding traffic information and displays it on the screen.

When the application server 130 receives the traffic information request message transmitted from the mobile communication terminal 110 through the mobile communication network 120, the application server 130 analyzes the cell information included in the traffic information request message and the mobile communication terminal 110. And extracts the traffic information of the area in which the location is located and transmits it to the mobile communication terminal (110). Preferably, the application server 130 generates the real-time road traffic information for the main road within a radius of 5 ~ 10km around the longitude / latitude of the coordinates for the cell information and transmits it to the mobile communication terminal (110).

More specifically, the mobile communication terminal 110 and the application server 130 will be described with reference to FIG. 1.

As shown in FIG. 1, the mobile communication terminal 110 includes a cell delimiter determining unit 111, a traffic information requesting unit 113, a traffic information receiving unit 114, a communication unit 115, and a traffic information display control unit 116. ).

The cell separator determiner 111 analyzes a signal of a mobile communication network received through the communication unit 115 to determine cell information of a base station currently providing a communication service to the mobile communication terminal 110. Preferably, the cell delimiter determination unit 111 analyzes the communication signal and searches the cell delimiter of the base station currently serving in the cell delimiter DB 112. In addition, the cell delimiter determination unit 111 may periodically update the version information of the cell delimiter information stored in the cell delimiter DB 112 through the communication unit 115 to the application server 130. In addition, the cell separator determiner 111 periodically determines the cell information of the base station currently serving. The cell delimiter DB 112 stores cell delimiter information for identifying the cell delimiter based on data from the base station, coordinate information of the cell delimiter, and the like. The coordinate information of the cell delimiter is preferably a representative longitude / latitude coordinate of the main road belonging to the area where the cell performs the service.

The traffic information requesting unit 113 transmits a traffic information request message including the cell identifier of the currently serving base station and the identification number of the mobile communication terminal 110 determined by the cell identifier discrimination unit 111 through the communication unit 115. Transfer to the application server 130. Preferably, the traffic information requesting unit 113 transmits a traffic information request message when the mobile communication terminal 110 is out of the threshold distance or at a predetermined time out. The movement over the threshold distance is determined by calculating a distance difference between the current cell separator determined by the cell separator discrimination unit 111 and the cell separator previously transmitted to the application server 130. In this case, the coordinates used to calculate the distance difference of the cell separators may preferably use the coordinates stored in the cell separator DB 112. Of course, the terminal may use the coordinates included in the overhead channel received from the base station.

The traffic information receiver 114 receives the traffic information data transmitted from the application server 130 through the communication unit 115. Traffic information data is real-time traffic information of major roads within a predetermined radius around the coordinates of the cell separator.

The traffic information display control unit 116 displays real-time traffic information on the road map stored in the road map DB 117 by using the traffic information data received by the traffic information receiving unit 114 and displays it on the screen. Preferably, the traffic information display control unit 116 displays real-time traffic information of neighboring roads on a road map based on the representative coordinates (ie, road coordinates) of the cell separator on the screen.

Next, as shown in FIG. 1, the application server 130 includes a traffic information request receiver 131, a traffic information extractor 132, a traffic information transmitter 133, and a latitude / longitude coordinate DB 134 of a cell separator. ) And road traffic information DB 135.

The latitude / longitude coordinate DB 134 of the cell delimiter stores coordinate information about the cell delimiter of the base station of the mobile communication network 120, that is, the latitude / longitude coordinates. Preferably, the representative coordinates of the cell separators stored in the cell separator longitude / latitude coordinates DB 134 are set to the longitude / latitude coordinates of the main roads belonging to the region where the corresponding cell performs the service. In this case, multiple longitude / latitude coordinates of the cell separator may be set.

The road traffic information DB 135 stores real-time traffic information of major roads.

The traffic information request receiver 131 receives a traffic information request message transmitted by the mobile communication terminal 110 through the mobile communication network 120, and extracts cell identifier information from the traffic information request message.

The traffic information extracting unit 132 receives the cell separator information from the traffic information request receiving unit 131 and retrieves the coordinates of the cell separator from the longitude / latitude coordinate DB 134 of the cell separator. The road traffic information DB 135 extracts real-time traffic information of major roads within a predetermined radius around the longitude / latitude coordinates of the road.

The traffic information transmitter 133 transmits the real-time traffic information extracted by the traffic information extractor 132 to the mobile communication terminal 110 through the mobile communication network 120.

Although not shown in FIG. 1, the application server 130 may include means for updating the cell identifier DB 112 established in the mobile communication terminal 110. When the application server 130 receives the version information of the cell separator DB 112 from the mobile communication terminal 110, it checks the version information and moves the latest version of the cell separator data when the version of the mobile communication terminal 110 is an old version. Transmit to communication terminal 110.

2 is a flowchart illustrating a traffic information providing method using a mobile communication network according to an embodiment of the present invention.

As shown in FIG. 2, the mobile communication terminal 110 connects a traffic channel for data transmission with the application server 130 according to a user's input in synchronization with a base station of the mobile communication network 120. (S201).

Subsequently, the mobile communication terminal 110 transmits version information of the cell identifier DB 112 stored in the terminal to the application server 130 (S203). The application server 130 checks the version information of the cell delimiter DB 112 received from the mobile communication terminal 110 (S205), if the latest version is not the latest version of the cell delimiter DB of the mobile communication terminal 110 (S207). The mobile communication terminal 110 updates the cell identifier DB 112 stored inside the terminal according to the latest version of the cell identifier DB received from the application server 130 (S209).

When the update of the cell identifier DB 112 stored in the mobile communication terminal 110 is completed as described above, the application server 130 receives a traffic information request message around the terminal from the mobile communication terminal 110 (S211). . That is, the mobile communication terminal 110 checks the cell identifier DB 110 for the base station cell currently being serviced based on the information received from the base station, and checks the cell identifier and the identification number of the terminal (eg, a telephone number). , Or IMSI, etc.), and transmits a traffic information request message around the terminal to the application server 130.

The application server 130 receiving the traffic information request message around the terminal retrieves the representative coordinates of the cell delimiter included in the traffic information request message around the terminal from the longitude / latitude coordinate DB 134 of the cell delimiter and then represents the representative coordinates. Real-time traffic information of major roads within a predetermined radius around the coordinates is extracted from the road traffic information DB 135 (S213).

Next, the application server 130 transmits the extracted real-time traffic information to the mobile communication terminal 110 through the mobile communication network 120 (S215).

As such, the mobile communication terminal 110 receiving the real-time traffic information on the main road around the terminal from the application server 130 releases the data traffic channel with the application server 130 (S217), and receives the received real-time traffic. Information is displayed on the terminal screen (S219). The mobile communication terminal 110 displays the real-time traffic information with the representative coordinates of the cell separator at the center of the screen.

3 is a flowchart illustrating a traffic information providing method using a mobile communication network according to another embodiment of the present invention.

As shown in FIG. 2, the mobile communication terminal 110 that receives and displays real-time traffic information around the terminal from the application server 130 checks whether the cell separator of the base station currently serving in real time or periodically during the movement is changed (S301). ).

When the cell of the serving base station is changed, the mobile communication terminal 110 moves and displays traffic information currently being displayed based on the coordinates of the changed cell identifier (S303). The mobile communication terminal 110 compares the coordinates of the cell delimiter transmitted to the application server 130 with the coordinates of the changed cell delimiter when the traffic information is received (S305).

Subsequently, the mobile communication terminal 110 determines whether it has moved by a threshold distance or a predetermined time out based on the calculated movement distance (S307), so that the predetermined time is not moved by the threshold distance. If it has not elapsed, steps S301 to S305 are repeated, and if a predetermined distance has elapsed or a predetermined time has elapsed, a traffic channel for data transmission with the application server 130 is set (S309).

Subsequently, the mobile communication terminal 110 retransmits the surrounding traffic information request message including the changed cell identifier and the terminal identification number to the application server 130 (S311).

The application server 130 receiving the traffic information request message around the terminal retrieves the representative coordinates of the changed cell delimiter included in the traffic information request message around the terminal from the longitude / latitude coordinate DB 134 of the cell delimiter. Real-time traffic information of major roads within a predetermined radius around the representative coordinates is extracted from the road traffic information DB 135 (S313).

Next, the application server 130 transmits the extracted real-time traffic information to the mobile communication terminal 110 through the mobile communication network 120 (S315).

As such, the mobile communication terminal 110 receiving the real time traffic information on the main road around the terminal from the application server 130 releases the data traffic channel with the application server 130 (S317), and receives the received real time traffic. Information is displayed on the terminal screen (S319). The mobile communication terminal 110 displays the real-time traffic information with the representative coordinates of the changed cell separator at the center of the screen.

On the other hand, the mobile communication terminal 110 determines whether the above-described service is terminated (S321), if not terminated and repeats the process of Figure 3 described above, otherwise terminates.

4 is a diagram illustrating a configuration of an optimal path providing system using a mobile communication network according to an embodiment of the present invention. Here, the configuration of the same reference numerals as in FIG. 1 performs the same function, and a detailed description thereof will be omitted.

The cell delimiter DB 409 of the mobile communication terminal 410 stores cell delimiter information for identifying the cell delimiter based on data from the base station, and a table as shown in FIG. 7C. 7C will be described later.

When the path information request unit 401 of the mobile communication terminal 410 receives the destination information from the user, the cell identifier of the base station currently serving and the identification number of the mobile communication terminal determined by the destination information and the cell separator determination unit 111. The route information request message including the transmits to the application server 430 through the communication unit 115.

Alternatively, the route information request unit 401 may refer to the cell separator DB 409 to provide a user interface (UI) to a main road point belonging to a cell area of a base station serving a point at which the mobile communication terminal 410 is currently located. In this case, any one of the points may be selected as a starting point, and the selected point may be included in the route information request message as the starting point information and transmitted to the application server 430. That is, when the table of FIG. 7C is stored in the cell separator DB 409, the path information request unit 401 may determine the link ID corresponding to the cell identifier of the currently serving base station determined by the cell separator determiner 111. That is, the representative coordinate point of the road area (covered by the base station cell) is displayed on the user interface, and one of them is selected as a starting point.

Preferably, the path information request unit 401 retransmits the path information request message when the mobile communication terminal 410 is out of the threshold distance or at a predetermined time out or out of the optimum path. The movement over the threshold distance is determined by calculating the distance difference between the cell delimiter of the currently serving base station determined by the cell delimiter determining unit 111 and the cell delimiter that has already been transmitted to the application server 430. At this time, the distance difference calculation of the cell separator uses the coordinates of the cell separator. Coordinates of the cell delimiter may use coordinates stored in the cell delimiter DB 409 of the mobile communication terminal 410 or coordinates included in an overhead channel received by the terminal 410 from the base station.

The counter 407 determines the deviation of the optimum path of the mobile communication terminal 410 and controls the path information request unit 401 to retransmit the path information request message when the optimum path is left. The counter 407 compares the cell delimiter of the currently serving base station determined by the cell delimiter determining unit 111 with the delimiter of the serving cell via the optimal path to the destination received by the path information receiving unit 403, and then departs. In this case, the count information is increased to control the path information request unit 401 when the count is greater than or equal to the predetermined threshold count. At this time, the counter 407 initializes the count number and counts again when the mobile communication terminal 410 reenters the normal path below the predetermined threshold count number. After all, if a predetermined number of cell separators deviate continuously, the path is re-requested.

Next, the route information receiver 403 of the mobile communication terminal 410 receives route information data from the application server 430 to the destination transmitted through the communicator 115. The route information data includes cell identifier data that can be serviced through the optimum route, road region identification information through the optimal route, representative coordinates of each road region, and destination cell identifier. In addition, the route information data may include the traffic speed of each road area of the optimum route and the traffic information of the main road within a predetermined radius (eg, 1 km) of the optimal route.

The route information display control unit 405 displays the optimum route to the destination on the road map stored in the road map DB 117 by using the route information data received by the route information receiving unit 403 and displays it on the screen. Preferably, the route information display control unit 405 displays the optimal route on the road map based on the representative coordinates of the cell separators. That is, the optimal route is displayed on the road map based on the representative coordinates included in the route information data received from the application server 430. In addition, the route information display controller 405 may display traffic information of the main roads around the optimum route included in the route information data received by the route information receiver 403 together on the road map.

The path information display control unit 405 compares the cell separator of the currently serving base station determined by the cell separator discrimination unit 111 with the cell separator of the destination received by the path information receiving unit 403 to determine the mobile communication terminal 410. Determine if you have arrived at your destination. If the cell identifier of the base station currently in service and the cell identifier of the destination received from the application server 430 match, it is preferable to determine that the destination has been reached and end the road guidance.

Next, the longitude / latitude coordinate DB 439 of the cell delimiter of the application server 430 stores a road area belonging to an area serviced by the cell for each cell delimiter, representative coordinates of each road area, a road name, and the like. 7A is a diagram showing an example of a road and base station service area, and FIGS. 7B and 7C are examples of a table stored in a longitude / latitude coordinate DB 439 of a cell separator constructed based on the road and base station service area of FIG. 7A. The figure which shows. As shown in FIG. 7A, assuming that there are two roads (roads # 1, # 2), each road is divided into a plurality of road areas, and each road is divided into a plurality of base stations (base stations # 1, # 2, # 3, # 4) belongs to the service area. At this time, each road area of the road is divided by a link ID, and the center of each road area is set as the representative coordinates (asterisk in FIG. 7A). The alpha (α) cell (0x0f0000101) of base station # 1 serves two road areas (Link ID = 10000001, Link ID = 10000002) of road # 1, and the beta (β) cell (0x0f0000102) is one of road # 2. Service two road areas (Link ID = 20000001). In addition, the cell 0x0f0000201 of the base station # 2 services the road area of Link ID = 20000002 of the road # 1 and the Road area of Link ID = 10000003 and Link ID = 1000004 of the road # 2. The cell 0x0f0000301 of the base station # 3 serves the road area of Link ID = 10000005 of the road # 2, and the 0x0f0000401 cell of the base station # 4 serves the road area of the Link ID = 20000002 of the road # 1. In summary, as shown in the table of FIG. 7B, the link ID for each road name, representative coordinates of the link ID, and the cell separator of the base station serving the link ID may be arranged. As shown in the table of FIG. 7B, the link ID, Representative coordinates of the link ID and the road name to which the link ID belongs can be arranged. Tables such as the example of FIGS. 7B and 7C may be stored in the longitude / latitude coordinate DB 439 of the cell separator.

The route information request receiving unit 431 of the application server 430 receives the route information request message transmitted by the mobile communication terminal 410 through the mobile communication network 120, and the source information and the destination information are received from the route information request message. Extract. The starting point information is any one of a cell identifier of a base station currently serving by the mobile communication terminal 410, an identification code (ie, link ID) of a road point selected by a user, or representative coordinates of a road point selected by a user, and destination information is a coordinate. Is preferably.

The route information calculation unit 433 receives the departure point information and the destination information from the route information request receiving unit 431, and retrieves the representative coordinates of the departure point from the longitude / latitude coordinate DB 439 of the cell separator (origination information). May be omitted if the representative coordinates), the optimal route from the representative coordinates of the starting point to the destination using the representative coordinates of the searched starting point and the destination information and the road map stored in the road map DB 437 do. In this case, an optimal route may be calculated with reference to the road traffic information stored in the road traffic information DB 135. Algorithms for calculating the optimal route using the coordinates of the starting point and the destination are well-known techniques already implemented in many navigation terminals, and thus the detailed method thereof will be omitted.

In addition, the route information calculation unit 433 extracts the cell delimiter, road area (link ID), and representative coordinate information of the base station via the optimum route from the cell delimiter's longitude / latitude coordinate DB 439, and also the cell of the destination. Extract the delimiter. Here, the cell separator of the destination may be a plurality. That is, when the destination is an area covered by a plurality of base station cells, the cell separator of the destination may be plural.

The route information transmitter 435 transmits the route information data to the destination extracted by the route information calculator 433 to the mobile communication terminal 410 through the mobile communication network 120. The route information data includes cell identifier information of a base station that can be serviced on an optimal route to a destination, a road region (link ID) via an optimal route, representative coordinates of each road region, a speed of each road region, and a cell separator of a destination. Included. FIG. 8 illustrates an example of route information data transmitted from the application server 430 to the mobile communication terminal 410, in which the top of the road # 1 shown in FIG. 7A is a starting point and the bottom is a destination. As shown in FIG. 8, the route information data includes cell identifier information 830 of a base station that can be serviced on an optimal route to a destination, a road region (link ID) 810 via the optimal route, and each road region. Representative coordinates of 820, the speed 840 of each road area is included.

1 and 4 have been described separately in the above-described embodiment, it is apparent that according to the embodiment, Figures 1 and 4 are integrated to provide traffic information and route guidance services.

5 is a flowchart illustrating a method for providing optimal path information using a mobile communication network according to an embodiment of the present invention.

As shown in FIG. 5, the mobile communication terminal 410 connects a traffic channel for data transmission with an application server 430 according to a user's input in synchronization with a base station of the mobile communication network 120. (S501).

Subsequently, the mobile communication terminal 410 transmits version information of the cell identifier DB 409 stored in the terminal to the application server 430 (S503). The application server 430 checks the version information of the cell separator DB 409 received from the mobile terminal 410 (S505), if the latest version is not the latest version, the cell separator DB of the latest version to the mobile terminal 410. To transmit (S507). The mobile communication terminal 110 updates the cell identifier DB 409 stored inside the terminal according to the latest version of the cell identifier DB received from the application server 130 (S509).

As such, when the update of the cell identifier DB 409 stored in the mobile communication terminal 410 is completed, the application server 430 receives an optimal path information request message from the mobile communication terminal 410 to a destination. (S511). The optimal route information request message includes source information, destination information input from the user, and an identification number of the terminal (for example, a phone number or IMSI). The mobile communication terminal 410 may check the separator for the base station cell in service based on the information received from the base station in the cell separator DB 409 and select the checked cell separator as the source information. Alternatively, the mobile communication terminal 410 presents to the user a main road point belonging to the service area of the base station serving the current point on the user interface and selects one of them as a starting point, so that the user is more accurate. Allows you to specify a starting point. That is, after searching for the cell delimiter of the base station currently in service in the cell delimiter DB 409, the main road point (ie, link ID and representative coordinate) corresponding to the searched cell delimiter is displayed on the UI in the table as shown in FIG. 7C. To be selected.

The application server 430 that receives the optimal route information request message stores the representative coordinates of the cell separator or service main road point of the starting point included in the optimal route information request message in the cell separator latitude / longitude coordinate DB 439. After searching (may be omitted if the departure information is the representative coordinates), from the starting point to the destination using the representative coordinates, the destination information included in the optimal route information request message, and the road information of the road map DB 437. Calculate the optimal path. In addition, the application server 430 extracts road traffic information on the main road within a predetermined radius of the calculated optimum route from the road traffic information DB 135, and also delimiter information of the base station cell via the calculated optimal route. The cell delimiter information of the road region (link ID and representative coordinate) and the destination via the optimal path is extracted from the cell delimiter's long / latitude coordinate DB 439 (S513).

In this way, the application server 430 extracts the road traffic information around the optimal route to the destination, the separator of the base station cell via the optimal route, the road area (link ID and representative coordinate), and the cell separator information of the destination. The included path response message is transmitted to the mobile communication terminal 410 (S515).

The mobile communication terminal 410 receiving the path response message from the application server 430 releases the data traffic channel with the application server 430 (S517), and optimizes the destination to the destination included in the received path response message. The route to the destination is displayed on the terminal screen using the route information (S519). The mobile communication terminal 510 displays the optimal path to the destination with the representative coordinates of the current cell separator at the center of the screen. In addition, the mobile communication terminal 510 displays the road traffic information around the optimum route included in the route response message on the terminal screen so that the user can search for a detour route other than the optimal route.

6 is a flowchart illustrating a method of providing optimal path information according to another embodiment of the present invention.

As shown in FIG. 5, the mobile communication terminal 410 that receives and displays the optimal path information to the destination from the application server 430 checks whether the cell identifier of the base station currently serving in real time or periodically during the movement is changed (S601). ).

When the cell of the serving base station is changed, the mobile communication terminal 410 moves and displays the path information currently being displayed based on the changed cell identifier (S603). The mobile communication terminal 410 compares the representative coordinates of the cell delimiter transmitted to the application server 430 with the representative coordinates of the changed cell delimiter when receiving the path information (when there are a plurality of representative coordinates in the cell delimiter, The representative coordinates having the highest rank are selected and compared.) The distance traveled by the terminal is calculated, and if the changed cell separator is not a cell separator on an optimal path, the count is increased, and from the time at which the path information is first displayed. The elapsed time is calculated (S605). At this time, the mobile communication terminal 410 initializes the count number when the changed cell separator is a cell separator on an optimal path. That is, if the changed cell separators are not consecutive cell separators on the optimal path, the count number is increased.

Subsequently, the mobile communication terminal 410 determines whether it has moved by the threshold distance based on the calculated movement distance, whether the count number is greater than or equal to the threshold count number, or whether a predetermined time out has elapsed (S607). If not satisfied, steps S601 to S605 are repeated, and if any one is satisfied, a traffic channel for data transmission with the application server 430 is set (S609).

Subsequently, the mobile communication terminal 410 transmits the optimal path information re-request message including the changed cell identifier and the terminal identification number to the application server 430 (S611).

The application server 430 receiving the optimal path information re-request message selects a representative coordinate (selected according to priority in case of multiple representative coordinates) of the cell separators included in the optimal path information re-request message. After retrieving from the longitude / latitude coordinate DB 439, the optimal route from the starting point to the destination is recalculated using the representative coordinates, destination information (already known information), and road information of the road map DB 437. In addition, the application server 430 extracts road traffic information on the main road within a predetermined radius on the calculated optimum path from the road traffic information DB 135, and also delimiter information of the base station cell via the calculated optimal path. The route point information (link ID and representative coordinates) is extracted from the longitude / latitude coordinates DB 439 of the cell separator (S613).

As such, the application server 430 extracting the road traffic information around the optimal route to the destination, the identifier information of the base station cell via the optimal route, and the route road point information transmits a route response message including all of the above information to the mobile communication terminal. 410 and transmits (S615).

As such, the mobile communication terminal 410 which has re-received the path response message from the application server 430 releases the data traffic channel with the application server 430 (S617), and displays the received route information and traffic information around the terminal on the terminal screen. (S619). The mobile communication terminal 410 displays the optimal route and traffic information around the route with the representative coordinates of the changed cell separator at the center of the screen.

Meanwhile, the mobile communication terminal 410 determines whether the cell identifier of the base station that is moving and is currently serving and compares with the cell separator of the destination included in the path response message to check whether the terminal arrives at the destination (S621). The above-described process with reference to FIG. 6 is not repeated, and ends when the destination is reached.

According to the present invention as described above, the mobile subscriber can be provided with a real-time traffic information service and road guidance service even with a mobile communication terminal that is not equipped with a GPS receiver. The mobile communication terminal checks the cell information of the base station currently in service and transmits it to the application server, and the application server transmits traffic information of the main road within a predetermined radius centered on the cell of the base station serving the mobile communication terminal and the route to the destination. By searching and providing, you can use related services without changing the existing network environment and without using additional GPS devices.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

1 is a view showing the configuration of a traffic information providing system using a mobile communication network according to an embodiment of the present invention.

2 is a flowchart illustrating a traffic information providing method using a mobile communication network according to an embodiment of the present invention.

3 is a flowchart illustrating a traffic information providing method using a mobile communication network according to another embodiment of the present invention.

4 is a diagram illustrating a configuration of an optimal path providing system using a mobile communication network according to an embodiment of the present invention.

5 is a flowchart illustrating a method for providing optimal path information using a mobile communication network according to an embodiment of the present invention.

6 is a flowchart illustrating a method of providing optimal path information according to another embodiment of the present invention.

7A is a diagram illustrating an example of a road and base station service area.

7B and 7C are diagrams illustrating an example of a table stored in a longitude / latitude coordinate DB of a cell separator constructed based on the road and base station service area of FIG. 7A.

8 is a diagram illustrating an example of route information data transmitted from an application server to a mobile communication terminal.

<Explanation of symbols for the main parts of the drawings>

111: cell separator discrimination unit 113: traffic information request unit

114: traffic information receiving unit 116: traffic information display control unit

131: traffic information request receiving unit 132: traffic information extraction unit

133: traffic information transmission unit

Claims (17)

A communication terminal for receiving the road information through a network from an application server for extracting and transmitting road information based on a base station cell, A cell delimiter determination unit for determining a delimiter of a base station cell in communication; A traffic information request unit which transmits a traffic information request message including the cell delimiter determined by the cell delimiter determination unit to the application server; A traffic information receiver configured to receive road traffic information centering on a representative coordinate of the cell separator from the application server; And And a display controller configured to display road traffic information received by the traffic information receiver on a road map. The method of claim 1, The traffic information request unit, And comparing the representative identifier of the cell identifier of the currently communicating base station and the cell identifier transmitted to the application server by the cell delimiter determination unit and retransmitting the traffic information request message to the application server when the distance is moved more than a threshold distance. Communication terminal. The method according to claim 1 or 2, The traffic information request unit, And a traffic information request message including a cell delimiter determined by the cell delimiter determination unit at predetermined intervals to the application server. The method according to claim 1 or 2, The display control unit, And displaying the road traffic information based on the representative coordinates of the changed cell delimiter whenever the cell delimiter determined by the cell delimiter determining unit changes. The method according to claim 1 or 2, Further comprising: a storage unit for storing identifier information of the base station cells, The cell delimiter determination unit, And analyzing the data received from the base station cell in communication to determine the delimiter of the base station cell in the storage unit, and updating the version of the cell delimiter stored in the storage unit whenever connected to the application server. The method of claim 1, A path information request unit for transmitting a path information request message including a cell delimiter determined by the cell delimiter determination unit and destination information input from a user to the application server; And a route information receiver configured to receive route information from the application server to the destination using the representative coordinates of the cell separator as a starting point. And the display control unit displays the route information to the destination received by the route information receiving unit on a road map. The method of claim 6, Path information received by the path information receiving unit, Contains cell identifier information of the base stations via the path to the destination, The route information request unit, And retransmitting a path information request message when a cell delimiter which is not included in cell delimiter information passing through the path to the destination is continuously determined by the cell delimiter determining unit. The method according to claim 6 or 7, The route information request unit, And comparing the representative identifier of the cell identifier of the currently communicating base station and the cell identifier transmitted to the application server by the cell delimiter determination unit and retransmitting a path information request message to the application server when the cell identifier is moved more than a threshold distance. Communication terminal. The method of claim 6, Path information received by the path information receiving unit, And a cell identifier of base stations via a route to a destination, road area identification information through a path to a destination, and representative coordinates of each road area. The method of claim 1, The route information request for transmitting the route information request message including the road point information of any one of the road points serviced by the cell corresponding to the cell separator determined by the cell delimiter determination unit and the destination information input from the user to the application server. part; A route information receiver configured to receive route information from the application server to the destination using road point information included in the route information request message as a starting point; And the display control unit displays the route information to the destination received by the route information receiving unit on a road map. An application server for transmitting the road information to the communication terminal through a network to a communication terminal that receives and displays road information centering on representative coordinates of a base station cell in communication. A storage unit for storing representative coordinates of the separators of the base station cell; A traffic information request receiver for receiving a traffic information request message including a delimiter of a base station cell in communication from the communication terminal; A traffic information extraction unit for querying the representative coordinates of the cell separators included in the traffic information request message in the storage unit and extracting road traffic information based on the representative coordinates; And And a traffic information transmitter for transmitting the road traffic information extracted by the traffic information extractor to the communication terminal. The method of claim 11, The traffic information request receiver, And a traffic information request message is received from the communication terminal every predetermined period or whenever the communication terminal moves more than a threshold distance. The method of claim 11, A path information request receiving unit which receives a path information request message including a delimiter and destination information of a base station cell in communication from the communication terminal; A route information calculator for querying the representative coordinates of the cell separators included in the route information request message in the storage unit and calculating route information to the destination using the representative coordinates as a starting point; And And a path information transmitter for transmitting the path information calculated by the path information calculator to the communication terminal. The method of claim 13, The route information calculated by the route information calculating unit includes cell identifier information of a base station via a route to a destination, road region identification information via a route to a destination, and representative coordinates of each road region. Application server. The method according to claim 13 or 14, The route information calculated by the route information calculating unit includes traffic information of a road within a predetermined radius around the route to the destination. A method for providing a road traffic information service to a communication terminal in a mobile communication system having representative coordinates for identifiers of a base station cell, Receiving a traffic information request message including a delimiter of a base station cell in communication from the communication terminal; Querying representative coordinates of a cell delimiter included in the traffic information request message; Extracting road traffic information based on the inquired representative coordinates; And And transmitting the extracted road traffic information to the communication terminal. A method of providing a route information service to a communication terminal to a communication terminal in a mobile communication system having representative coordinates for identifiers of a base station cell, Receiving a route information request message including a delimiter and destination information of a base station cell in communication from the communication terminal; Querying representative coordinates of a cell delimiter included in the path information request message; Calculating route information to the destination based on the inquired representative coordinates; And And transmitting the calculated route information to the communication terminal.

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