KR102069980B1 - Method for testing and quality measurement of wireless service through vehicles running on arbitrary routes, and an apparatus for said method - Google Patents

Abstract

According to the present invention, a method for realizing the quality of a wireless communications service or a wireless broadcasting service by using a plurality of measuring devices individually mounted on vehicles comprises the following steps of: receiving a quality element designation request including identification information of a unit area to which a current position belongs from an arbitrary measuring device among the measuring devices; selecting one or more quality elements which are measured to be relatively small among a plurality of quality elements with respect to a wireless service set to measure a unit area corresponding to the identification information, and transmitting a measurement command with respect to the selected quality elements as a response to the quality element designation request; receiving result information obtained by measuring the selected quality elements from the arbitrary measuring device; and reflecting the received result information as a measurement value of the selected quality elements with respect to the unit area corresponding to the identification information, wherein the unit area is an arbitrary area when an area in which the wireless service is provided is divided based on the longitude and latitude.

Description

Method for testing and quality measurement of wireless service through vehicles running on arbitrary routes, and an apparatus for said method}

According to the present invention, various factors that determine the quality of a wireless communication network, such as a mobile communication network and a vehicle-infrastructure communication network (V2I Communication Network) and the like, are provided wirelessly, for example, the strength of a wireless signal, the service speed, and the like. The present invention relates to a method and an apparatus for the method that enable the measurement and the various tests performed by the service area.

As the technology of the mobile communication network has evolved, it has been able to provide a high-speed wireless service of 100 Mbps or more seamlessly, and is currently being developed to target a high-speed mobile communication service of several hundred MBytes / sec. In addition, the development of this high-speed mobile communication network is being accelerated by a competition to preempt the technological superiority among the providers of mobile communication services.

In addition, there is a fierce competition not only to compete in this investment for the future, but also to provide subscribers with a relatively better quality for the mobile communication network that is currently providing services. This is because the quality of mobile communication services currently provided is directly related to the number of subscribers.

Therefore, mobile communication operators are operating a large number of maintenance personnel in the service area of the wide area to ensure excellent service quality, such as eliminating shadow areas and providing service speeds above a certain standard. They continuously measure and analyze the quality of the entire service area, and build or replace the necessary communication equipment accordingly.

However, since the area in which the mobile communication service is provided is so large, it takes a considerable time to complete the measurement of the quality of the entire service area. Therefore, in order to reduce the time to complete the quality measurement, it is necessary to secure more maintenance manpower, which is a burden on the efficiency of manpower resource management, and thus it is difficult to be easily selected by the mobile operator.

In addition, since it takes a long time to complete the measurement of the entire service area and analyze the acquired measurement data, even if the service quality of the measured place is determined by the analysis, the current service quality and May differ from one another, and measures resulting from the analysis (eg new communication equipment, or relocation of communication equipment, etc.) may not be appropriate or insufficient at this time.

In addition, due to the wide service area, it is necessary to take considerable time to complete the quality measurement. Therefore, the quality measurement at each point should be completed in the shortest possible time, thereby reducing the overall time required. However, since the factors for determining the quality of the mobile communication service vary, for example, not only the strength of the radio signal of the mobile communication, but also the actual service speed, transmission delay time, etc., it is necessary to complete the quality measurement of the mobile communication network. To save time, it is necessary to measure all of these quality factors simultaneously. The measurement equipment that mobile operators currently operate is very expensive, bulky, and medium to large because they can measure several quality factors at once.

However, as these measuring equipments are very expensive as described above, and need to be mounted on a special vehicle to measure, the cost of expanding such measuring equipment to complete the quality measurement more quickly for the whole service area is required. The enemy burden is inevitably high. Moreover, even if such measuring equipment is expanded and operated, it still takes a long time to grasp the measurement result by such a measuring method, so that the quality of the mobile communication service cannot be confirmed in real time.

It is an object of the present invention to provide a method and apparatus for quickly identifying various quality factors of a wireless communication service using vehicles traveling on arbitrary routes.

It is a further object of the present invention to provide a method and apparatus for enabling mobile communication in a desired service area using vehicles traveling on any route.

Still another object of the present invention is to automatically identify various quality factors of wireless communication service by subdivided area through measuring equipment mounted on a vehicle which freely selects a path without mobilizing actual measurement personnel and also requires a network. It is to provide a method and apparatus for enabling testing.

It is still another object of the present invention to provide a method and an apparatus for determining the quality of a band for a broadcast signal transmitted wirelessly using vehicles traveling in an arbitrary path.

The object of the present invention is not limited to the above-mentioned object explicitly, and it naturally includes the object of achieving an effect that can be derived from the specific and exemplary description of the present invention.

According to an aspect of the present invention, a device mounted on a vehicle for measuring the quality of a wireless communication service includes a communication unit capable of connecting to a wireless communication network and transmitting and receiving data with a remote location using the communication network, and a signal received from a satellite. A GPS unit for determining a current position of the device based on the information, a measurement unit for measuring signal strength of a radio signal of a wireless communication network, and information about the current position detected by the GPS unit to a specific server through the communication unit; When the transmission requests a specification for the quality factor to be measured for the wireless communication service and a response specifying the quality factor is received from the specific server in response to the request, the communication unit or the measurement unit is used to measure the specified quality factor. After transmitting the result of the measurement to the specific server through the communication unit for It is configured to include a control unit. Here, the information about the current position is information for identifying one unit area to which the current position belongs when the area in which the wireless communication service is provided is divided based on the longitude and latitude.

In one embodiment according to the present invention, when the unit area to which the current position grasped by the GPS belongs is changed, the controller requests the specific server to designate a quality factor to be measured. Before requesting a designation for a quality factor, confirm the response received as a request for a designation for a quality component in the previous unit area, and if there is a designation for the quality element to be measured for the changed unit area in that response, It may be necessary to make a measurement according to the requirements and to specify the quality factor only when there is no designation. When the current position grasped by the GPS belongs to one unit area for more than a predetermined time, the specific server may be requested again for designation of a quality factor to be measured.

In one embodiment according to the present invention, the apparatus further comprises a display unit capable of visually expressing the applied data. In the present embodiment, when the information on the plurality of unit areas connected to each other is included in the response, the control unit may identify the unit areas corresponding to the information on the electronic map through the display unit. To be displayed in such a way.

In one embodiment according to the present invention, the control unit includes information specifying the type of the device in the request and transmits the information to the specific server. In addition, the type is assigned to classify devices based on their function or performance with respect to devices of the same type that are installed in a vehicle and measure the quality of mobile communication service.

In one embodiment according to the present invention, the control unit transmits a unique number assigned to uniquely identify the device, together with the result of the measurement, to the specific server.

In one embodiment according to the present invention, if there are a plurality of quality factors specified in the response and the current position grasped by the GPS unit is changed to another unit area while the measurement of each of the plurality of quality factors is performed, The control unit transmits the measurement result for the quality factor whose measurement is completed before changing to the other unit area to the specific server.

In one embodiment according to the present invention, when the control unit measures a quality factor specified in the response, when the data entity (eg, a file or an HTML document, etc.) is required for the measurement, the reception is performed. You can also use the data object specified in the response.

In one embodiment according to the present invention, when a response for specifying a test for a network is received from the specific server in response to the request, the control unit controls the communication unit to call the other party specified in the response. A call is sent and the test result is sent to the specific server through the communication unit as to whether or not the originated call is established.

In one embodiment according to the present invention, when the control point is notified of the compensation score given to the device from the specific server, the control point may be displayed on the display.

In one embodiment according to the present invention, the control unit continuously detects the moving speed of the device. In this embodiment, the measurement of the quality factor specified in the response is selectively performed based on the current movement speed that is determined. If a plurality of quality factors are specified in the response, the controller selects from the plurality of quality factors based on the current movement speed to be identified, and performs measurement only on the selected quality factors.

In one embodiment according to the present invention, if the quality factor specified in the response is a predetermined specific element, the controller changes the current position grasped by the GPS unit from the unit area in which the measurement for the specific element is started to another unit area. If so, measurements may continue for that particular element.

In one embodiment according to the invention, the device may further comprise at least one sensor for sensing a condition related to the surrounding environment for measuring the quality of the wireless communication service. In this embodiment, the control unit transmits the information on the state detected by the sensor when performing the measurement on the specified quality factor to the specific server together with the result of the measurement.

In accordance with another aspect of the present invention, an apparatus for measuring the quality of a wireless broadcast service mounted on a vehicle includes a communication unit capable of connecting to a wireless communication network and transmitting and receiving data to and from a remote place using the communication network, and a signal received from a satellite. A GPS unit for determining the current position of the device based on the signal, a measurement unit for measuring the signal strength of the broadcast signal transmitted wirelessly, and information about the current position detected by the GPS unit through the communication unit When a request for specifying a quality factor to be measured for a wireless broadcasting service is transmitted while transmitting to a server, and a response for specifying a quality factor is received from the specific server in response to the request, a measurement for the designated quality factor is performed using the measurement unit. A control unit for transmitting the result of the measurement to the specific server after performing the communication unit It is configured to include. The information about the current location is information for identifying one unit area to which the current location belongs when the zone in which the wireless broadcasting service is provided is divided based on the longitude and latitude. The band to be measured is specified among the divided bands for the band of the broadcast signal.

In the above-described apparatus or embodiments, the quality factor measured may include at least two of the factors for determining the quality of the wireless service in the case of a wireless communication service, and in the case of the wireless broadcast service, the broadcast signal band may be subdivided. At least two elements may be included in consideration of the signal strength of each of the bands as a separate quality factor.

According to yet another aspect of the present invention, a method of determining the quality of a wireless service using a plurality of measuring devices individually mounted to vehicles includes a current position from any of the measuring devices. A first step of receiving a quality element designation request including identification information of a unit area in which the unit area is located; and among the plurality of quality elements for the wireless service set to be measured for the unit area corresponding to the identification information, relatively less measured quality Selecting at least one element and transmitting a measurement command for the selected quality element in response to the quality element designation request; and measuring the selected quality element from the arbitrary measuring device Step 3 of receiving information, and the received result information, the selected product for the unit area corresponding to the identification information It includes four steps to reflect the measured value of the quality factor. Here, the unit area is an arbitrary area when the area where the wireless service is provided is divided based on the longitude and latitude.

In one embodiment according to the present invention, the step 2, the identification information of each unit area by selecting at least one quality element measured relatively less for each of one or more unit areas adjacent to the unit area corresponding to the identification information; Together with the measurement command.

In one embodiment according to the present invention, the method examines a rate at which a measure of a quality factor is obtained for a plurality of unit areas created by the division for the area in which the wireless service is provided, The method may further include setting a specific zone including a portion of the plurality of unit areas based on a ratio. In this case, the second step may include selecting a quality factor in response to the quality factor designation request and responding to the response. When transmitting, the response includes information on the specific zone set above. In the present embodiment, the step of setting a specific zone is such that the unit zones that are connected to each other or the unit zones belonging to the administrative district unit in which the rate at which the measured value is obtained is less than a predetermined reference value are set to the specific zone. do.

In one embodiment according to the invention, the method may further comprise the step of setting to a specific zone for the service area for which a particular test is to be performed, in which case the second step is in accordance with the quality factor designation request. When selecting a quality factor and transmitting a response, the response includes information on the specific zone.

In embodiments in which a specific zone is set, the step 2 includes: information on the specific zone is added to the response only when the set specific zone is closer than a predetermined limit distance from the unit area corresponding to the identification information. It can also be included. The limited distance may be selected and applied based on the type information of the vehicle equipped with the arbitrary measuring device included in the received quality factor designation request among differently designated distances.

Further, in embodiments where a particular zone is encountered, when the method receives a result of a measurement or a test obtained by performing in an arbitrary unit area from one of the measuring devices, the arbitrary unit area is If the specific zone is set, the method may further include assigning a predetermined compensation score to a unique number assigned to the one measuring device. In this case, the step 4 may further perform a process of notifying the arbitrary measuring apparatus of the total compensation score which has been given to the arbitrary measuring apparatus so far by the giving step.

In an embodiment according to the present invention, the second step identifies quality factors that can be measured by the type to which the measurement apparatus belongs, and among the identified quality factors, in a unit area corresponding to the identification information. Select relatively few measured quality factors.

In one embodiment according to the present invention, if the specific test is specified for the unit area corresponding to the identification information, the second step is a command to perform the specific test instead of the measurement command, the quality factor designation request. Will be sent in response. In the present embodiment, if the other party's service area is designated for the specific test, the second step checks whether another measuring device is currently located in the other party's service area, and when the other measuring device is located, the other measurement is performed. The unique number assigned to the device is included in the response and transmitted. In this case, if there are a plurality of other measuring devices located in the opposite service area, one or more unit areas belonging to the opposite service area in which the plurality of other measuring devices are located are located closest to the center of the opposite service area. The unit area is selected and the unique number of the other measuring device located in the selected unit area is included in the response. If a plurality of other measuring devices are located in the selected unit area, the unique number of the other measuring device most recently entered into the selected unit area is included in the response.

In one embodiment according to the present invention, if the step 4 indicates that the received result information is a measurement value less than or equal to a specified threshold for the selected quality factor, the unit areas corresponding to the identification information are different from each other. The display may be further performed on the display means in a visually distinguishable manner.

In an embodiment according to the present invention, if the method indicates that the received result information is a measurement value less than or equal to a specified threshold value for the selected quality factor, the selected quality for the unit area corresponding to the identification information. It may further comprise five steps to enhance the measurement of the element. In this embodiment, when the measurement of the selected quality factor is instructed to any measurement device, the period of the measurement is shorter than before, or the method of increasing the target number of measurements for the selected quality factor is further increased. As a result, the measurement of quality factors can be enhanced.

In one embodiment according to the present invention, if the step 4, the received result information, if the information that detects the state representing the environment when the measurement value of the selected quality factor is included, the detection; The recorded information may further include recording the measured information as measurement environment information in association with the selected quality factor for the unit area corresponding to the identification information.

In one embodiment according to the present invention, the quality factors set to measure the unit area corresponding to the identification information may be set to be changed according to the day of the week, the time zone, or the weather, and each of the quality factors The target measurement number may be changed and applied according to the day of the week, the time zone, or the weather. In an embodiment according to the present invention, the service area is divided so that the unit area has different sizes according to the type of the area where the wireless service is provided. The type of region is such that cities with populations above any threshold greater than one million are distinguished from at least other regions. In addition, even for a city having a population equal to or larger than the reference value, in the case of one or more specific zones or roads, it may be divided into unit areas having a size smaller than the size of the unit area divided for the zone or other roads.

In the above-described method or the above embodiments, the wireless service may be a wireless communication service provided by a wireless communication network or a wireless broadcast service provided by a broadcast signal transmitted wirelessly.

At least one embodiment of the present invention described above, or described in detail in conjunction with the accompanying drawings below, is directed to a large number of vehicles freely selecting and operating any path other than a path intended for measuring the quality of a wireless communication service. Using measuring devices individually mounted in the service area and distributed randomly in the service area by the vehicles, it is possible to complete the quality measurement or necessary network test for the wireless communication service in a faster time, and Since many measuring devices are used, expensive measuring equipment capable of measuring various quality factors at once is unnecessary, thereby reducing maintenance costs for quality control of a wireless communication network.

And a limited number of expensive measurements When the equipment completes the quality measurement of the whole service area where the wireless communication is being serviced, it is known only after the completion of the measurement work to confirm the quality at any place, but the present invention is directed to any place. The quality of the wireless communication service can be checked in near real time. Quickly identify the situation and respond to it. That is, such countermeasures, such as the establishment or relocation of telecommunication equipment, will be appropriate to the current situation, thereby improving the efficiency of resource management.

In addition, the present invention enables the quality measurement of the wireless broadcast service that transmits a broadcast signal wirelessly to be completed in a shorter time through a measuring device equipped with a large number of vehicles that run freely on an arbitrary path. In areas where traffic is frequent, the quality of broadcast signals can also be determined in near real time.

1 illustrates an overall system to which a method for quality measurement and testing for wireless services is applied, using vehicles traveling on any path, according to the present invention;
2 illustrates a configuration of a measuring apparatus mounted or mounted on a vehicle traveling an arbitrary route according to an embodiment of the present invention.
FIG. 3 illustrates a flow diagram of a method of measuring various quality factors of a mobile communication service by the measuring apparatus of FIG. 2 according to an embodiment of the present invention under the management of a remote server,
4 is an example of a format of information configured by a measuring device to report a measurement result of a quality factor to a remote server according to an embodiment of the present invention.
5 is an example of a state flow diagram for a method for efficiently distributing and measuring various quality elements of a mobile communication network using many measuring devices, according to an embodiment of the present invention;
FIG. 6 exemplarily illustrates a configuration of a quality measurement status DB for constructing and managing a plurality of measuring devices to distribute and measure various quality elements according to an embodiment of the present invention.
FIG. 7 is an example conceptually showing measurement results for various quality factors of a mobile communication service obtained by one method according to the present invention in units of cells partitioned based on the longitude and latitude,
8 is a diagram illustrating a configuration of a network test status DB for establishing and managing a test for a network in a specific area of a mobile communication network according to another embodiment of the present invention so as to be performed by arbitrary measurement apparatuses. Is shown by way of example,
FIG. 9 exemplarily shows a relationship between a service area that is controlled by different base stations and cells that divide an entire service area according to the longitude and latitude according to the present invention.
FIG. 10 is a diagram illustrating an example of a configuration of terminal tracking information that is constructed and managed to grasp a current position of many measurement devices individually mounted to vehicles traveling on an arbitrary path, according to an embodiment of the present invention. Will,
FIG. 11 is a diagram illustrating a configuration of intra-cell terminal status information that is constructed and managed to identify, in real time, measuring devices located in a cell for each of the cells that divide the entire service area according to the latitude and longitude according to an embodiment of the present invention. By way of example,
12 shows an example of a procedure for performing a designated network test for a corresponding cell when necessary for a quality measurement designation request from an arbitrary measuring device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the embodiments and the accompanying drawings, like reference numerals refer to like elements unless otherwise specified. Of course, for convenience of explanation and understanding, different numbers or symbols may be added to the same component as necessary.

1 illustrates an overall system to which the method for quality measurement and testing for wireless service is applied, using vehicles traveling on any path, according to the present invention. In the following description and drawings, a mobile communication network is used as an example of a wireless communication service for providing a wireless communication service, but according to the present invention, the concept and technical idea of measuring the quality of a wireless service by using vehicles traveling on an arbitrary path are as follows. Naturally, it can be applied to other types of wireless networks, for example V2I networks for Intelligent Transportation Systems (ITS), or wireless networks that form networks individually for other unique purposes.

The overall system illustrated in FIG. 1 includes a vehicle (eg, a taxi, a tour bus, a courier vehicle, etc.) ( _i , i = 1, 2, .., L, ..) freely traveling on an arbitrary route. , through the cellular network 101, the vehicle of (v _i), the mobile communication network 101, each with a mounted or fitted a measuring device for providing a mobile communication service of a cellular (cellular) system to a service domain of a wide area It is configured to include a quality measurement management server 100 that manages the quality measurement for the mobile communication service by them while communicating.

In the method for quality measurement and test for wireless service using vehicles traveling on arbitrary routes according to the present invention, the entire service area where the mobile communication service is provided is subdivided based on the longitude and latitude as shown. And divided into regions (C _{i, j} , i = 1,2, .. k, .., j = 1,2, .. n, ..). In the present specification, one area when the service area is divided based on the longitude and latitude is called a unit area, and this unit area is called a 'cell'. The cell divides the service area so that, for example, the longitude and latitude are each 0.001 ^o wide. When divided into cells, one cell has a size of about 90x110 m in width and length. Of course, this is just one example.

In addition, although the illustrated example is equally divided into cells of the same size for the service area, it may be partitioned into different sizes depending on the type of service area as needed. For example, a service area of a large city with a population greater than 1 million or more may be divided into 0.001 ^o units, 0.005 ^o units for small and medium cities, and 0.01 ^o units for other regions. .

In addition, even in one region, in the case of a specific area or a specific road, the cell may be partitioned to a size different from the cell size partitioned for the area. For example, in areas with high concentrations of people or traffic, such as urban areas, or roads with high concentrations of vehicles, such as highways or motorways, the cell is divided into smaller sizes than the cell size applied to that area. It could be.

Figure 2, showing the configuration of the measuring device is mounted on each of said vehicle (v _i) in accordance with one embodiment of the present invention.

The measuring device 200 includes a cellular modem 21 for modulating data into an RF signal or demodulating the data in an opposite direction according to a signaling method designated by a cellular mobile communication network 101, and by using the cellular network 101. A communication unit comprising a communication processing unit 22 which performs data transmission and reception, call reception, and the like according to the adopted communication protocol, and receives a GPS signal from a plurality of satellites and displays a current position based on the received GPS signal. GPS unit 23 for acquiring the longitude and latitude coordinates of, a measurement unit 24 for measuring the intensity of the received signal for the signal band of the mobile communication network, or each band within the band, and inputted data such as images, images, A keypad provided with a display unit 25 for visually expressing in the form of a letter, a touch sensor 26a attached to the front of the display unit 25, and a key and / or a button. Etc., In order to perform an operation according to the input interface 26 that detects user input and / or selection on the touch sensor 26a or the keypad and outputs corresponding input information, and the input information from the input interface 26. Control unit 20 for transmitting or receiving data from or control data appropriately to the corresponding one of the components, and displays a UI screen for the result or selection of the operator's desired operation according to the display unit 25 And a storage unit 27 that provides data storage space necessary for an operation of the controller 20 or a process executed by the controller 20.

The control unit 20 includes the command codes of programs stored in the storage unit 27 by the central processing unit (CPU) by pre-stored command codes such as firmware (firmware) or firmware provided therein. It may be configured to perform various operations described in detail below together with the peripheral hardware elements. In addition, in order to help the understanding of the concept and subject of the present invention, the components of the measuring device 200 are functionally divided as illustrated in the drawings, but these components are divided into more subdivided components as necessary. Alternatively, some components may be selectively combined with each other to form a single component, and according to an embodiment of the present invention, a component not shown is further included to configure the measuring device 200. It may be.

According to the present invention, a method for measuring and testing a quality of a wireless service using vehicles traveling on an arbitrary path may be configured such that the entire service area in which the mobile communication service is provided has a predetermined size (or region-specifically) as described above. It is performed based on the cells divided into the size), each cell is given a unique identifier (hereinafter referred to as 'cell identifier'). This cell identifier may be assigned as a serial number starting from a cell of a reference coordinate point that is previously designated. And, for each cell, a cell coordinate diagram, which is information for mapping a cell and a position coordinate to each other, in which the cell identifier and coordinate information of the corresponding cell are stored in advance, is prepared in advance and provided to the quality measurement management server 100. do.

In addition, the cell coordinate diagram is provided in each of the measuring devices of the same configuration as the measuring device 200 of the configuration illustrated in FIG. 2, which is mounted on the vehicles, and is preset in the control unit 20 of each measuring device. It may be provided, or by requesting and downloading the quality measurement management server 100 using the provided communication unit (the cellular modem 21 and the communication processing unit 22).

The cell coordinate diagram may be a table in which the position coordinates of the cell and the region corresponding thereto are linked to each cell. Alternatively, the cell coordinate diagram may correspond to any position coordinate (or any position coordinate in the region). It may be an algorithm or program that specifies a cell identifier.

FIG. 3 is a mobile communication service under the management of the quality measurement management server 100 by the measuring device 200 mounted on the vehicles v _i traveling on an arbitrary route according to an embodiment of the present invention. This is a halo diagram of how to measure the various quality components of.

The operator of the measuring device 200 (the operator is typically a driver of the vehicle on which the device is mounted) is connected to the device via the input interface 26 before starting the vehicle or while driving the vehicle. Apply power to start the measurement operation. Of course, when the vehicle is started, the measurement apparatus 200 may be mounted on the vehicle in such a manner that power is applied to the vehicle, so that the measurement operation may be automatically started without a special input.

Vehicles in which the measuring devices according to the present invention are mounted or mounted are selected in accordance with the driving purpose of the driver regardless of the quality measurement of the mobile communication network. For example, a taxi may travel to a driver's preferred location to find a passenger, or to any destination designated by a passenger, and a courier vehicle may be selected to route appropriately via the delivery points. Thus, these vehicles are probabilistic randomly distributed over the entire service area.

When the measuring device 200 mounted on a certain vehicle starts to operate, the GPS unit 23 refers to a latitude and longitude coordinate (this is also referred to as a 'positional coordinate') from the received GPS signal. The grasping operation is continuously performed, and the value is provided to the controller 20 every time the position coordinate is detected (S31).

Whenever the coordinates of the current position are transmitted, the controller 20 checks which cell the corresponding position coordinate belongs to by using the previously provided cell coordinate diagram. That is, the identifier of the cell to which the corresponding position coordinate belongs is determined (S32). The controller 20 checks whether the cell identifier is different from the immediately known cell identifier while recording the cell identifier whenever it is checked (S33). If they are the same (the measurements for that cell are already in progress, as described below), it is still in the same cell even if the vehicle is stationary or on the move, so the current location is a different cell than before. Continue the above process to confirm. Of course, even if the cell identifier is the same as the previously confirmed cell identifier, quality measurement may be performed, which will be described later.

If the currently identified cell identifier is different from the immediately identified cell identifier, the controller 20 constructs a message of a quality measurement designation request including the checked cell identifier in the remote quality measurement management server 100. The transfer request is made to the communication processing unit 22. According to this request, the communication processing unit 22 forms a necessary session with the quality measurement management server 100 and transmits the quality measurement designation request message which is transmitted when the session is formed. The message thus transmitted is modulated and transmitted by the cellular modem 21 in a manner specified by the mobile communication network. Then, the transmitted signal is received by the neighboring base station and the data by the signal is properly routed by the communication network, thereby being transmitted to the quality measurement management server 100.

The quality measurement management server 100 receiving the quality measurement designation request selects a quality factor to be measured for the corresponding cell according to the content of the request, and sends a measurement command message instructing measurement of the selected quality factor. It is sent in response to a measurement specification request. The measurement command message transmitted in this way is received by the measurement apparatus 200 via the mobile communication network 101 (S35). The quality measurement management server 100 will be described in detail later how to select a quality factor to be measured for the received quality measurement designation request.

On the other hand, in one embodiment according to the present invention, as mentioned above, even if the identifier of the cell in which the measuring device is currently located does not change, for example, a certain time (for example, passing the cell when the vehicle is at a normal driving speed). When it is confirmed that the time is five times or more than 10 times or more times in the same cell, a message of quality measurement designation request including the current cell identifier may be transmitted to the quality measurement management server 100 again.

As mentioned above, the quality factor specified by the quality measurement management server 100 is various. Therefore, the control unit 20 measures as follows according to the specified quality factor (S36).

When signal strength is designated as a quality factor to be measured, the controller 20 controls the measurement unit 24 to measure the signal strength in a band designated for the mobile communication network, and receives the measured result. . The designated signal band may be composed of a plurality of subdivided bands. In this case, the measurement unit 24 measures the signal strength for each of the subdivided bands, and the control unit 20 receives the measured band-specific measurement values.

When the signal band of the mobile communication network needs to be measured for a plurality of bands, the quality measurement management server 100 may command the measurement by designating a band for measuring signal strength for the corresponding cell. In this case, the controller 20 designates a band to measure the signal strength to the measurement unit 24 and receives the measurement value.

When the measurement value for the band measured by the measurement unit 24 is received, the measurement result information is prepared as the measured result, and the created measurement result information is transmitted through the communication processor 22 to the quality measurement management server ( 100) (S37).

FIG. 4 illustrates a format of measurement result information 40 generated from the results obtained by measuring in the above manner, and indicates the identifier of the current cell to be measured, the measured date and time, and a measurement quality factor indicating the measured item. And fields of measured information 41. In some embodiments, other fields may be included in the measurement result information. These embodiments will be described later.

When the signal strength is the measurement target, the measured information field 41 includes a plurality of measurement result items 41a each composed of a measurement band representing a measured band and a measured signal strength value. Of course, when the signal band of the mobile communication network to be measured consists of a single measurement band, only the measured signal strength value may be written in the measured information field 41.

In another embodiment according to the present invention, when the signal strength is an object to be measured, it may be measured at a predetermined measurement period for a designated band until it is changed from a corresponding cell to another cell or for a predetermined time. In this case, of course, the position coordinates at the time of each measurement are received from the GPS unit 23 and recorded together as measured values. In this way, a series of measurement values (pairs of signal strength values and corresponding position coordinates) recorded for each band are configured as measurement result information when a cell is changed. In the present embodiment, the measurement period may be specified by being included in a measurement command message received from the quality measurement management server 100.

When a link speed is designated as a quality factor to be measured, the controller 20 first instructs the communication processor 22 to establish a session with a specific server. According to this command, the communication processor 22 establishes a session, ie a virtual link, on a mobile communication network by transmitting and receiving a signaling message necessary for establishing a session with the specific server through the cellular modem 21. do.

When the session establishment is notified from the communication processing unit 22, the control unit 20 requests transmission of a file to the specific server through the virtual link and starts receiving file data according to the request. From that time, the time required until the completion of file reception is measured, and when the file reception is completed, the downlink speed is calculated by dividing the size of the received file by calculating the downlink speed.

Once the downlink speed is calculated, the session is reestablished with the particular server in the same manner, and the file data is uploaded to the particular server via the opened virtual link. In this case, the speed of the uplink is calculated by dividing the size of the transmitted file by the time taken from when the upload is started to when the transmission is completed.

When the speeds of the downlink and the uplink are measured in this way, the measured result is written 41b in the measured information field 41 to form the measurement result information 40.

If video streaming is specified as a quality factor to be measured, as in the link speed measurement described above, a session is established with the specific server through a mobile communication network, and transmission of a predetermined streaming file is performed through the established session. Request and receive When the streaming data starts to be received in this way, the control unit 20 creates a temporary buffer in the storage unit 27 and stores it in the buffer, and simultaneously reads the data stored in the buffer. At this time, the read speed from the temporary buffer is the same as the play speed required by the streaming file, and the play speed can be determined by decoding the head data of the received file.

The control unit 20 checks whether the buffer is underrun while simultaneously storing and withdrawing the temporary buffer. If the streaming speed is slower than the play speed, the buffer will underrun. When an underrun occurs, the number of times is recorded. This number reflects the quality of the video streaming support of the mobile communication network. That is, the lower the number, the better the non-interruption of the video streaming.

A measure of non-stuttering for video streaming may be performed for several streaming files, each with a different play speed.

The file for measuring video streaming quality is preferably provided with a short play time. This is to ensure that the measurement is completed before the cell is changed by the movement of the vehicle.

When streaming ends or the cell changes during streaming, the control unit 20 releases the session established for streaming, and configures the playing speed required by the streaming file and the number of buffer underruns checked at the playing speed. The measurement result items 41c to be included are respectively included for different streaming rates to form the measurement result information 40. Of course, when the measurement target of streaming quality is a single designated file, only the number of buffer underruns can be described in the measured information field 41.

When web browsing is designated as a quality factor to be measured, the control unit 20 issues a request according to a communication protocol for requesting a web page sequentially for predetermined sites, for example, an HTTP request, for example, the communication processing unit 22. Send it through. When the response page starts to be received according to this transmission, the controller 20 measures the time until the page is completed while performing the request / reception operation of the information according to the response page. If the response page is not completed until the specified time limit (for example, 1 minute), the wait is stopped and the web page is failed.

In this way, when sequential browsing of web pages of predetermined sites ends, the result is described in the measured information field 41. In this case, the information field described here includes a measurement result item 41d consisting of items of page information of a designated site, success / failure of completion of a page, and time taken from completion of a successful web page request to completion. Consists of a form that includes about the site.

In one embodiment according to the present invention, when performing the measurement operation as described above according to the measurement command from the quality measurement management server 100, the data to be used for such measurement, without performing a predetermined file or site Information about an entity (eg, a file, a site, and / or a web page on a server) may be received from the quality measurement management server 100 and used. The information on the user may be included in the measurement command message and received, and the controller 20 extracts the target information from the measurement command message and applies the same to the measurement operation as described above.

When the beamforming of the base station is designated as the quality factor to be measured, the controller 20 controls the cellular modem 21 to activate the beamforming mode for transmission and reception of a radio signal. In addition, the base station for transmitting and receiving a wireless signal with the cellular modem 21, and actively performs the beam forming facing the measuring device 200. In order to form the beam of the base station with respect to the measurement apparatus 200, the communication processor 22 may transmit control information for requesting beamforming to the base station under the control of the control unit 20 as necessary.

With both the base station and the cellular modem 21 activated in the beamforming mode, even when the mobile station, i.e., the measurement apparatus 200, is moving rapidly, high speed communication between the base station and the cellular modem 21 can be achieved. Lose. Therefore, in one embodiment according to the present invention, in order to check whether beam forming is normally performed while the control unit 20 moves, data of a file is received from a specific server as in the link speed measurement described above. Or send to that particular server. Then, the speed measured during such data transmission or reception continues until it is lower than the minimum speed that can be obtained through beamforming. Of course, in this measuring process, even if the measuring device 200 enters another cell beyond the cell in which the measuring for beamforming starts, the measuring operation continues. The quality of beamforming depends on whether the beam shaped by the base station properly tracks the mobile station while the mobile station is moving quickly. Therefore, in order to measure the beamforming quality of the base station, it is assumed that the mobile station moves faster than a predetermined recommended speed (for example, 50 km / h). Because it can pass through multiple cells, measurements continue when the cell changes.

The controller 20 ends the measurement of the quality of beamforming when the measured data rate is less than or equal to a predetermined minimum speed or passes after a predetermined number of cells after the start of measurement. The measured results in the measured information field 41 and write the result of the measurement result information (40e) as 'beam formation good' for the cell and 'beam formation bad' for the cells falling below the minimum speed. ).

In another embodiment according to the present invention, the quality of the beamforming may be determined to be good or bad in the beamforming mode through diagnostic monitor log information provided by the cellular modem 21. Alternatively, the measurement result information 40 may be configured as other index values that can be identified through the log information.

On the other hand, as mentioned above, the quality measurement of the beamforming requires a fast moving speed of the mobile station above the recommended speed, so that the measurement thereof is ineffective when the measuring device 200 does not accommodate such a requirement.

Accordingly, the controller 20 calculates the speed according to the change in time of the coordinates every time a current position coordinate is received from the GPS unit 23, and calculates a predetermined time (eg, 10 Keep track of average speed during seconds or 30 seconds). The control unit 20 measures the beamforming from the quality measurement management server 100 with respect to the transmitted quality measurement designation request while determining the average moving speed of the vehicle on which the measurement apparatus 200 is mounted. If it is designated as a quality factor to be performed, the measurement operation for beamforming is performed as described above only when the average moving speed that is understood is greater than the recommended speed.

If the checked current moving speed is less than the recommended speed, the control unit 20 configures the measurement result information indicating the 'measurement impossible' for the specified quality factor and transmits it to the quality measurement management server 100. In addition, the beam forming measurement as described above is started by checking the moving speed of the designated recommended speed or more, but if the average moving speed is less than the recommended speed in the meantime, the controller 20 ends the measurement for the beam forming and immediately before the same. The measurement results are configured for only up to cells of the cell and are provided to the quality measurement management server 100.

What can be designated as the quality factor to be measured by the quality measurement management server 100 is various in addition to some of the quality factors described in detail above.

For example, the degree of radio signal interference, such as signal-to-noise ratio (SNR) and signal-to-interference noise ratio (SINR), handover success / failure, datalink failures, voice call success / failures, voice call duration And sound quality, data transmission delay time, carrier aggregation, and the like may be designated as quality factors to be measured.

The degree of radio signal interference may be measured by the measurement unit 24 for each designated band, and information about the number of handover success / failures and the number of data link failures may be obtained from the cellular modem 21.

For the number of voice call success / failures and the duration of the voice call, the controller 20 attempts to connect the voice call to a predetermined voice call server through the communication processor 22 to obtain the result of the attempt as measurement information. For the sound quality, the voice call data transmitted from the voice call server to which the call is connected can be obtained by applying a known call quality measurement method.

For the data transmission delay time, a session looped back with a predetermined server through the communication processor 22 is established, a data packet is transmitted through the established session, and looped back at the specific server. From the time from the transmission of the returning packet to the time of reception, the carrier aggregation can be carried out in a carrier aggregation manner in the cellular modem 21 when the communication processing unit 22 establishes a session with the specific server. After occupying the band, its performance can be measured by sending and receiving the appropriate amount of data.

As described above, the quality factors designated and measured from the quality measurement management server 100 are exemplified to specifically and exemplarily explain the principles and concepts of the present invention. In addition to the various various quality factors illustrated above, other factors, such as latency in VoIP communication, detailed performance indicators in beamforming, and the like, may be naturally applied as the quality factor to be measured. Some of the illustrated quality factors may be excluded and applied. Accordingly, the scope of rights interpreted by the claims should not be excluded, because the quality factor applied and implemented is not the quality factor illustrated for the purpose of description herein.

In one embodiment according to the present invention, when the measuring device 200 measures the quality factor specified in the measurement command message as described above, information about the surrounding measurement environment is also obtained and the information is obtained. It may be reported to the quality measurement management server 100 together with the measurement results. For this embodiment, the measuring device 200 may be further provided with a required sensor. For example, a proximity sensor, a raindrop sensor, or a fine dust sensor may be provided.

As such, when additional sensors are provided, the control unit 20 may, at the time of measurement of the quality factor or during the measurement, state information detected by each sensor provided (for example, an object is in proximity, per second). Rainwater amount, fine dust concentration, etc.) are included in the measurement result and provided to the quality measurement management server 100. Providing such information about the measurement environment may help to intuitively grasp the cause of the measurement result. For example, it can be intuitively determined that the poor beamforming is due to the presence of nearby or dense objects, or that the signal strength or low or high radio signal interference is due to the current rain on the cell. To be.

As described above, whenever the cell identifier is changed or when the cell identifier is located in the same cell for a predetermined time or more, the quality measurement designation request is transmitted to the quality measurement management server 100 and, accordingly, the quality measurement management server 100. After performing the measurement operation on the quality factor specified in the) and reporting the result, the operation is continuously performed until there is a stop request (S39). The stop request may be the driver's input through the input interface 26, or the case where the start of the vehicle is turned off.

Next, when there is a request for designation of quality measurement together with a cell identifier from the measuring devices 200 mounted in many vehicles, the quality measurement management server 100 can measure the corresponding cell for that request. The method of selecting quality factors and managing the measurement results of the quality factors will be described in detail.

FIG. 5 is a diagram illustrating a method for efficiently distributing and measuring various quality factors for a mobile communication service using the measuring devices mounted on vehicles that freely select and operate a route according to an embodiment of the present invention. Status is Chromdo.

The quality measurement management server 100, in the quality measurement mode (M01), when there is a quality measurement designation request to notify the new cell entry notification from any measurement device configured as shown in Figure 2 (S501) In the quality measurement current DB 300 configured as illustrated in FIG. 6, the DB item corresponding to the cell identifier written in the quality measurement designation request is managed, and the quality factors currently measured in the found DB item are checked. (S502). For example, if the notified cell identifier is identifier ID_C _{n, m} for cells C _{n, m} , the quality measurement management server 100 has a cell identifier of ID_C _{n, m} in the quality measurement status DB 300. Find the DB item 310. The quality measurement status DB 300 of FIG. 6 exemplarily shows only a part of various quality factors of the wireless communication network. For example, other quality factors mentioned above may be listed as an object to measure.

When the DB item 310 of the notified cell identifier is found, the found DB item 310 finds an unmeasured quality factor for which a result of the current quality measurement has not been obtained. In the illustrated structure of Fig. 6, find the quality factor recorded as 'No' for the measurement state. If a quality factor for which a quality measurement result is not obtained is found, the quality measurement management server 100 selects the quality factor ('Web browsing' 311 in the example of FIG. 6) (S503), and selects the quality factor. A message instructing the measurement of the quality factor is configured, and transmitted as a response to the previously received quality measurement designation request (S504).

For the quality factor 311 in which the measurement command is made, the measurement state is recorded with a flag indicating that the measurement result is waiting (312). This means that the quality measurement results have not been obtained yet, but when the corresponding DB items are searched to specify the quality factors to be measured for other measuring devices entering the same cell, the quality factors are specified again and duplicated the measurement results. This is to prevent the gain.

When the quality measurement management server 100 selects a quality factor to be measured for any cell, the quality measurement management server 100 selects it according to a preset priority. For example, when checking whether a measurement result is recorded for a certain DB item, that is, a cell, a predetermined order for quality factors, for example, radio signal strength-> link speed-> video streaming-> web browsing-> It may proceed in the order of beam forming or the like.

In one embodiment according to the present invention, for each quality factor (radio signal strength, link speed, video streaming, web browsing, beamforming) illustrated in FIG. Measurement commands can also be sent to the measuring device. For example, in the case of wireless signal strength, only one or a part of bands may be designated, and in the case of video streaming, a measurement command for specifying one play speed or only a part of play speed may be transmitted.

If the DB item specified by the cell identifier does not have a quality element (or a detailed element) for which the current quality measurement result is not obtained, the quality measurement management server 100 may determine the quality element (or the oldest measurement date or time). The detailed element) can also be selected as the element to be measured.

In one embodiment according to the invention, if the measurement results of all quality factors have been obtained for the cell, and if they are measured within the specified period of time (eg, 7 days, 10 days, etc.), the quality The measurement management server 100 may respond to the received quality measurement designation request with a message rejecting the request so that the cell does not perform any further quality measurement.

Of course, the operator of the quality measurement management server 100, after a certain period of time, after copying and storing the measurement results of all the cells obtained in the quality measurement status DB (300) during that time, the quality measurement status By initializing the DB 300, a new measurement result may be obtained for all cells.

In another embodiment according to the present invention, the quality elements of the measurement object listed in the quality measurement status DB may be listed differently according to the day of the week, time zone or weather. Alternatively, the quality measurement status DB may be provided in which all of the quality elements of the measurement object are registered in whole or in part according to the day of the week, the time zone, or the weather. For example, on weekends (or 8:00 am to 8:00 pm, rainy days), quality factor set A is listed as the measurement target (or the quality status status database so listed), and on weekdays (or from 8:00 pm) By 8 am, on a clear day), quality factor set B can be listed for measurement (or the quality status status database so listed). Here, the quality element set A and the set B refer to a set of quality elements that are selected differently in whole or in part in the quality factor. Of course, different sets of quality elements to be measured may be applied to the entire service area as well as to the cell unit.

According to the selection of the quality factor to be measured by the quality measurement management server 100 as described above, when a vehicle traveling on an arbitrary path enters an arbitrary cell, among the quality factors that are not currently measured for the cell, The higher the order, the higher the order of measurement is sent to the vehicle's measuring device. As a result, quality measuring elements of various mobile communication services are not overlapped with each other by devices measuring independently of each other at any position, and the measurement result can be obtained for all quality factors to be measured.

On the other hand, the measurement apparatus in the vehicle that receives the measurement command that the quality measurement management server 100 selects and transmits the quality factor as a response to the quality measurement designation request transmitted by the quality measurement server, the quality is as described above. After measuring the elements, the measurement result information is configured and transmitted as illustrated in FIG. 4. When the quality measurement management server 100 receives the measurement result information (S511), the quality measurement status DB (300) finds a DB item corresponding to the cell identifier included in the information, and finds the DB. The measured information about the quality factor (or corresponding detail factor) corresponding to the factor measured in the item is described (S512). In other words, record the measured value (signal strength, speed, etc.) and the relevant measurement date and time. When the measurement result is recorded, the measurement status of the quality factor (or the detail factor) is written as 'Yes' to indicate that the measurement result is obtained.

Meanwhile, the received measurement result information may include measurement results for a plurality of cells as described above with respect to the measurement of beamforming. In this case, the quality measurement management server 100, for each cell identifier, records the result value measured for the corresponding quality factor of the corresponding DB item with the measurement date and time, and previously measured for the same quality factor. If there is a result value, it is updated with the newly received result value.

In addition, if the received measurement result information includes information that detects a state (for example, object proximity, ambient density, rainfall, fine dust concentration, etc.) representing an environment when acquiring a measurement value for a quality factor, The quality measurement management server 100 further records the detected information as measurement environment information in association with the corresponding quality factor of the cell in which the measurement value is obtained.

The quality measurement management server 100, when the measured value included in the received measurement result information indicates a quality or poorer than a predetermined threshold value for the quality factor, the corresponding cell and the quality factor Marker information indicating that each is bad, for example, the 'error flag' is recorded (S513).

In this way, for the cell in which the abnormal flag is recorded, on the electronic map through the display means in a manner that can be visually distinguished from other cells through the display provided with the quality measurement management server 100, I can display it. If the corresponding cell is designated through a separate input means from the operator, the measured value may be shown in the form of a pop-up window or the like for the quality factor measured as a defective value below the threshold.

In the above embodiment, one measurement value was obtained for one quality factor. Of course, when the set period of time elapses, a new measurement value is acquired again, but within that period, the measurement value is acquired once. However, in another embodiment according to the present invention, one quality factor may be measured a plurality of times by a designated target measurement number (target measurement number may be different for each quality factor). In this embodiment, when selecting a quality factor to be measured with respect to a quality measurement designation request received from an arbitrary measuring apparatus, a plurality may be selected and responded, and the quality measurement status DB and the number of times of measurement for each quality factor are also selected. It further comprises a field to be recorded, and a measurement array in which each measured value and a measurement date and time are respectively recorded. The method of selecting the quality factor to be measured for the quality measurement designation request will be described in more detail below.

In one embodiment according to the invention, the target number of measurements specified for each cell for the same quality factor may be different. For example, cells belonging to a particular zone may be assigned a larger target measure than other cells. In addition, the target measurement number of the quality factors listed for the same cell may be applied differently according to the day of the week, time of day or weather. In this way, in the case of a particular day of the week, a certain time of day or a certain weather, it is possible to have more specific quality factors measured.

When the quality measurement management server 100 receives the quality measurement designation request from any measurement device, it checks the quality factors to be measured in the quality measurement status DB for the cell identifier described in the request as described above. In this embodiment, the 'measurement state' as mentioned above is not considered. That is, the quality factor may be selected regardless of whether it is waiting after the measurement command. Then, for each quality factor, the ratio of the current measurement frequency to the designated target measurement number is determined, and then a plurality of quality factors having the lowest ratio are selected. In the selection of quality factors, in the case of being divided into a plurality of detailed elements of the quality elements, each detail element is regarded as one quality element to select one or more detail elements having the lowest measurement frequency ratio. do. When one or more quality elements (or detailed elements) measured relatively less than the target number of measurements are selected, a measurement command message for the selected quality elements is constructed and transmitted in response to the received quality measurement designation request. . For the selected plurality of quality factors, the measurement priority may be assigned in descending order of the measurement rate calculated as described above. Of course, the quality factor whose current measurement number is greater than the target measurement number is excluded from the selection.

As such, when a plurality of quality elements are specified in the measurement command message, the measuring device that receives the command performs the measurement on the quality elements in the order specified in the command, or sequentially according to a predetermined priority. By measuring sequentially a plurality of designated quality factors, and when the measurement for all the specified quality factors is completed, the measurement result information is prepared by the respective measured values and provided to the quality measurement management server 100. If, during the sequential measurement of the specified quality factors, enters a cell different from the cell where the measurement is started, the ongoing measurement is stopped, and the measurement result information is written only for the quality factors for which the measurement was successfully completed. It is provided to the quality measurement management server (100). As described above, the measurement operation may continue even if the cell is changed depending on the quality factor to be measured.

When a plurality of quality elements are specified in the measurement command message, the measuring device which receives the command selects the quality elements that can be measured in its own state from among the specified quality elements, and measures the corresponding elements. A selective measurement operation may be performed. For example, as described above, if the moving speed is less than the predetermined recommended speed and the beam quality is included in the specified quality factor, the beam quality is excluded and the measured quality factors are measured. Of course, if there is a quality factor (e.g. video streaming) specified not to be measured above the recommended speed, then if your movement speed is above the recommended speed, then that quality factor is included in the specified quality factors The measurement operation is performed without the elements.

The quality measurement management server 100 reflects the measurement result information including the measurement values for the plurality of quality elements, which are received from any measurement apparatus, in the quality measurement status DB. That is, for each of the cell identifier (or cell identifiers) and one or more quality elements included in the measurement result information, the measurement value included in the information is recorded together with the measurement date and time in the corresponding order of the measurement array, and the corresponding quality Increase the number of measurements for an element by one.

Then, the average value is obtained along with the previously received measurement values for the corresponding quality factor, and when the average value indicates a quality or defect lower than a predetermined limit value for the quality factor, As in the above-described embodiment, the above flag is recorded and a separate operation for notifying the operator is performed.

In addition, the quality measurement management server 100 is to enhance the measurement for the corresponding quality factor of the cell in which the abnormal flag is recorded. As a way to enhance the measurement, increase the target number of measurements specified for that quality factor to a larger value. As the target measurement number is increased, more measurement values are acquired, thereby ensuring more reliable measurement results. Another way to enhance measurement is to shorten the measurement period for that quality factor when sending a measurement command message to the measuring device. For example, when the quality factor recorded with the abnormal flag is signal strength, the period for checking the received signal strength can be shortened to 1/2.

In another embodiment according to the present invention, when the quality measurement management server 100 receives a quality measurement designation request from an arbitrary measurement device, the quality to be measured in the quality measurement status DB for the cell identifier described in the request. With selecting the elements as described above, the surrounding cells of the cell of the received cell identifier (eg, cells surrounding adjacent to the cell of the received identifier, or the cell of the received identifier are within a predetermined distance). For all cells), the quality factors to be measured may be selected in the same manner to configure a measurement command message for a plurality of cells. Of course, in the measurement command message configured as described above, a cell identifier is added to quality elements to be measured for the corresponding cell.

As such, in an embodiment in which a measurement command message is specified in response to a quality measurement specification request, in which the measurement command message, which specifies quality factors to be measured for neighboring cells, is received, the measurement device itself is determined in the received measurement command message. A measurement operation of specified quality factors is performed on a cell identifier that matches the identifier of the cell currently located. And, unlike the above-described embodiment in which the quality measurement designation request is transmitted to the quality measurement management server 100 when the cell identifier is changed according to the movement, the quality measurement designation request is not directly transmitted even when the cell identifier is changed. First, it is checked whether the newly entered cell is designated together with the previously received measurement command message, and the quality measurement designation request is transmitted to the quality measurement management server 100 only when it is not specified.

If the previously received measurement command message includes the identifier of the cell that has entered the cell, of course, the measurement operation is performed on the quality elements specified for the cell identifier and the result is reported to the quality measurement management server 100. do.

The embodiments described so far assume that all the measuring devices mounted on the vehicle for quality measurement have the same measurement performance or function. However, if necessary, the measuring devices mounted on the vehicle may differ from each other in terms of measurement performance or function. For example, there may be a measuring device that is different in the band for measuring the signal strength, impossible to form a beam, or is not equipped with a video streaming measurement function. Therefore, in one embodiment according to the present invention, a type of device is determined based on the performance or function of the measuring devices, and the device specification table defined for the performance or the function that can be performed for each type is described above. The quality measurement management server 100 is provided in advance, the corresponding type of each measuring device is set in the control unit, respectively.

In one embodiment according to the invention, the type of vehicle may be designated as part of a unique number assigned to uniquely identify the measuring device, described in the following examples. For example, when assigning a unique number to a measuring device as a specific digit of the unique number (first digit of the unique number) or as a telephone number, the type of the measuring device can be designated by the number corresponding to the station number.

When the type is set in the measuring device, when any measuring device requests the quality measurement management server 100 to specify the quality measurement, it carries its type information together with the corresponding message and transmits the quality measurement management. When the server 100 selects the quality factor to be measured for the cell as described above according to the designation request, the server 100 checks the type information contained in the designation request, and the type can be performed in the device specification table. After the performance or function is first identified, among the quality factors that can be measured by the identified performance or function, a current unmeasured quality element or a plurality of quality elements having a low measurement rate are selected.

As described above, the various quality factors of the mobile communication service can be freely selected by the route so that the measurement devices mounted on the vehicles running freely have no overlap, or more evenly distributed and measured. It is possible to measure quality factors efficiently and quickly for the whole service area of communication.

FIG. 7 shows partitioned cells C _{i, j} , i = .. k, .., j which measure results obtained by measuring for various quality components of a mobile communication service by this method according to the present invention. = .., n, ..) conceptually expressed as a unit, there may be a time difference, but stochastic all the quality factors by different measuring devices in all cells including the road By way of example, measurements can be made.

However, when a certain period of time is determined and a measurement result is to be obtained for the entire service area in which mobile communication is provided within the period, there is no or a relatively small area (70) (that is, a 'free zone'). This is called stochastic. This is because vehicles equipped with a measuring device do not operate by selecting a path for the purpose of quality measurement.

In one embodiment according to the invention, it is possible to pay a price for inducing vehicles equipped with a measuring device to travel to the empty zone so that such a free zone does not occur if possible or its size is reduced. One way of paying such a price is to provide a reward score each time the result of measuring a cell is provided to the quality measurement management server 100, but the reward score is different according to the zone. Of course, for such a reward score, a period is set, and the reward score obtained during the period is equivalently exchanged for real goods. In the present embodiment, it is preferable that the measurement device 200 separately mounted on the vehicles stores the electronic map in advance in the storage unit 27 (or is a navigation device that is conventionally mounted on the vehicle). Each measuring device is also assigned a unique number which can be distinguished from other devices. This unique number may be a telephone number assigned to a subscriber of a mobile communication network. The unique number of the device and the personal information of the driver of the vehicle equipped with the device are separately managed in association with each other. The information managed in this way is used when the measuring device compensates the driver with the actual goods for the compensation score obtained as the quality of the mobile communication service is measured.

In the present embodiment, when the operator of the quality measurement management server 100 sets the measurement deadline, the quality measurement management server 100 grasps the remaining days from the present to the measurement due date, if the remaining days If it is less than the specified number of days, the measurement result of all the cells is determined and the empty zone is designated. For example, by inspecting the quality measurement DB (300), the average measurement rate of the cells connected to each other less than a predetermined lower limit (for example, 10 or 25 when all the quality factors are measured 100) Specifies an area as the free zone.

In another embodiment according to the present invention, the vacant side zone may be designated in accordance with the administrative district. For example, a zone mapping diagram in which cells corresponding to an arbitrary administrative unit (for example, city, county, or district) are mapped is provided in advance, and the quality measurement management server 100 includes the provided zone. The average measurement rate of the quality factor is checked for each administrative unit designated in the mapping chart, and when the measurement rate is less than the predetermined lower limit, all the cells belonging to the administrative unit are designated as the vacant zone.

If one or more empty side zones are designated in the above manner, when the quality measurement designation request is received from any measuring device, the quality measurement management server 100 responds to the request, for example, as described above. In transmitting the quality measurement command specifying the quality factor, the currently designated empty side zone information is added and transmitted. This free zone information is constituted by the fact that the free zone is set and identifiers of cells belonging to the zone.

In one embodiment according to the present invention, when providing the empty zone information to the measurement apparatus, the cell identifier included in the quality measurement designation request transmitted by the measurement apparatus is within a certain limit distance (for example, 20 km, 40 km). Information may be provided only for free zones that exist.

In one embodiment according to the invention, this limit distance can be applied differently depending on the type of vehicle on which the measuring device is mounted. For example, if the vehicle type is a taxi, a distance of 20 km and a tourist bus 40 km may be applied respectively. In the present embodiment, the control unit 20 of the measuring device is previously set with information specifying the type of the mounted vehicle, and the control unit 20 sets the above-described quality measurement designation request to itself. Including the information to be written and transmitted to the quality measurement management server 100, the quality measurement management server 100 applies the limit distance corresponding to the vehicle type information included in the received request corresponding measurement device You will select an empty zone to inform.

On the other hand, if the vacant side zone information is included in the quality measurement designation command received from the quality measurement management server 100, the control unit 20 of the measuring device displays the electronic map stored in the storage unit 27, The other map area is displayed on the display unit 25 centering on the current position coordinates grasped by the GPS unit 23 and corresponding to cell identifiers included in the received empty side zone information. Make sure it is distinguished from. Of course, the controller 20 appropriately adjusts the scale of the displayed electronic map so that the free zone can be displayed on the screen of the display unit 25. Such display on the electronic map of the vacant side zone area may be made by a navigation device connected to cooperate with each other.

When the vacant side zone is displayed on the display unit 25 so that the vacant side zone can be distinguished, a driver operating a vehicle equipped with the corresponding measuring device visually recognizes that the vacant side zone is set. A situation where the destination is not defined and the route can be freely selected (for example, when an empty taxi is searching for a passenger, and so on), or even when the destination is set, it is possible to pass through an area where an empty zone is set. In this case, since a special compensation is given to the quality measurement for the mobile communication network in the vacant side zone, the driver may drive the vehicle to the vacant side zone. Therefore, unlike before, where the poor side zone is not designated, the measurement of the quality factor in the corresponding poor side zone may be made more frequently.

In the present embodiment, when the measuring device 200 measures the specified quality factor and provides the measurement result information to the quality measurement management server 100 as described above, it is set to the measurement result information itself. The unique number of the device is included and provided.

Therefore, when the measurement result information is received from any measurement apparatus, the quality measurement management server 100 first determines whether the cell identifier described in the information belongs to the set empty zone. If the cell identifier belongs to the vacant side zone, a predetermined compensation score is assigned to the device unique number included in the measurement result information, and the contents of the measurement compensation DB for managing the compensation score assigned to each device are given. It will be described. In other words, if there is no item listed for the corresponding device unique number, it is registered as a new item with the unique number with the specified reward score as an initial value, and if there is a listed item, the item of the device unique number The predetermined compensation score is added to the existing acquisition score as described in the following to be updated.

In another embodiment according to the present invention, the compensation score may be assigned to the measurement of all the cells instead of the compensation score only for the measurement of the empty zone. In this case, a larger compensation score is given to the measurement of the poor zone than the measurement that is not.

In one embodiment according to the present invention, when a message containing measurement result information is received from an arbitrary measuring device, the quality measurement management server 100, the total compensation score obtained so far for the unique number of the measuring device It is possible to notify the compensation score by confirming from the measurement compensation DB, and transmitting the confirmed total compensation score in an acknowledgment (Ack) for receiving the message. In the present embodiment, when the total compensation score is notified through an affirmative response to the measurement result information transmitted by the user, the controller of the measuring apparatus displays the notified compensation score on a specific area of the display unit, whereby the driver of the vehicle Make it visually recognizable.

The above-described embodiments are appropriately distributed and measured quality factors using vehicles traveling on an arbitrary path with respect to quality factors that must be continuously checked for the entire service area in which the service of mobile communication is provided. However, the principles and concepts of the present invention are not limited thereto, but may be applied even when a special test is required for a specific area. Hereinafter, this embodiment will be described in detail.

Operators providing mobile communication networks often establish or replace communication equipment (e.g. exchanges, repeaters, etc.) for specific service areas. It is necessary to know for a long time whether it provides a performance or function problem. For example, it is necessary to confirm whether the call success rate or call delay time by the new communication equipment is different from the existing communication equipment, or whether the compatibility with other manufacturers' communication equipment is excellent. Of course, the actual operational characteristics of such equipment can only be reliably obtained through a large number of collective tests.

In one embodiment according to the present invention, by using the measuring devices configured as shown in FIG. 2 mounted on vehicles traveling any path, the test for the communication equipment installed in the specific service area as described above is collectively performed. For this embodiment, the quality measurement management server 100 is to build and manage the network test status DB 400 as illustrated in FIG. Of course, building and managing such a network test status DB (400) may be a separate server that is built separately from the quality measurement management server (100).

An example of the test items listed in FIG. 8 is for a voice call connection between different cells, and shows that one test item 410 is listed for the voice call connection as illustrated in FIG. 9. have. In the exemplary service environment of FIG. 9, the base station (BS _A , BS _B ) manufactured by different manufacturers, and the areas (svcC _A , svcC _B ) where each base station manages mobile communication (in this specification, 'services' Cell, and cells (C _{i, j} , i = .. p,., R, .., j = .., q, .., s, ..) (This cell is aliased as 'area cell' when it needs to be clearly distinguished from 'service cell'.) It shows the relationship between the service cell (svcC _A and svcC _B ). In addition, a test item 410 for confirming compatibility and interoperability between the two base stations BS _A and BS _B is listed in FIG. 8.

Listed as one test item in the network test status DB (400), it can be made by the operator's input through the operator interface provided in the quality measurement management server (100).

To describe in more detail the registration of one test item 410 illustrated in FIG. 8, in order to test the compatibility and interoperability between both base stations BS _A and BS _B , a service cell (svcC _A ) managed by the base station BS _A is provided. Call connection must be attempted from the other base station BS _B to the serving cell svcC _B , or vice versa, and each service cell belongs to a plurality of area cells, as shown. As shown in FIG. 8, one test item 410 is listed. Of course, for this listing, a cell mapping diagram for mapping between a service cell and an area cell is provided in advance in the quality measurement management server 100. Therefore, if the operator designates only the service cell to be tested through the input device, the quality measurement management server 100 automatically identifies the corresponding area cells in the cell mapping diagram and the test item as illustrated in FIG. 8. Will be listed.

If the operator designates the test item, that is, 'voice call connection' and the target number of tests to be tested together, the number (nMx _N ) is also displayed in the 'Total number of tests' field of the newly registered test item 410. Will be filled in.

In addition, in the present embodiment, as in the above-described embodiment, when the measuring device 200 transmits a quality measurement designation request message, a device unique number (for example, a telephone assigned to a subscriber of a mobile communication network) set to itself Number) in the designation request message. Then, each time the quality measurement management server 100 receives the designated request message, the corresponding measurement in the terminal tracking information 500 that is built and managed for all measurement devices as illustrated in FIG. 10. It will record the identifier of the cell currently entering the device. For example, as illustrated in FIG. 9, an arbitrary vehicle equipped with a measuring device having a unique number Tml_ID _U enters C _{p, q} out of the cell C _{p, q-1} (90) by specifying a quality measurement request message. When transmitting, the quality measurement management server 100, the current location for the corresponding terminal item of the terminal tracking information 500 by the device unique number (Tml_ID _U ) and the cell identifier (ID_C _{p, q} ) contained in the message. The identifier of the cell is updated (501).

In addition to the terminal tracking information 500, the quality measurement management server 100 builds and manages the intra-cell terminal status information 600 having the structure illustrated in FIG. The intra-cell terminal status information 600 reflects the measuring devices currently located in each cell in real time. That is, for the identifier of each cell, the number of measuring devices located in the cell and the unique number of the measuring devices are recorded and modified in real time. For example, transmits the unique number Tml_ID _U measuring device specified by any vehicle, the cell C _{p, q-1} out of the cell C _p, measured while entering a _q (90) quality in mounting the request message, as in the previous example Then, the quality measurement management server 100 with reference to the information contained in the message, while updating the terminal tracking information 500 as shown in Figure 10 (501), at the same time, corresponding to the terminal status information 600 in the cell Information about the items of the cell identifier to be updated accordingly. That is, the cell C _{p, q_1} (this cell can be known from the cell identifier before updating the information of the current location cell in the item of the corresponding device of the terminal tracking information 500). The number of terminals in the cell is reduced by one (601), and the number of the registered unique number is deleted (602), and the number of terminals in the cell is increased by one while recording the deleted unique number for the entry of the entered cell C _{p, q} . 603.

The quality measurement management server 100, based on the terminal tracking information 500 and the intra-cell terminal status information 600, the information is managed as described above, all the measuring devices are located in a certain cell and also in each cell what measurement It is possible to determine in real time whether the devices belong to, based on the information obtained in this way for the test items listed in the network test status DB (400) as follows: Or between the measuring devices.

12 illustrates an example of a procedure for performing a designated network test for a corresponding cell when necessary for a quality measurement designation request from a measuring apparatus according to an embodiment of the present invention.

As described above, when a quality measurement designation request message is received from any measurement apparatus, the quality measurement management server 100 according to the terminal tracking information 500 and the intra-cell terminal status information 600 according to the above. After updating, the cell identifier shown in the designated request message is searched in the network test status DB 400 (S1201) to check whether the cell is listed as a test item in the status DB (S1202).

If not listed, for the received quality measurement designation request, as in the above-described embodiment, the quality factor to be measured for the corresponding cell is selected with reference to the quality measurement status DB 300, and the selected quality. A message instructing the measurement of the element is transmitted to the corresponding measuring device (S1220).

If the cell identifier is listed as a test item in the network test status DB 400, the number of tests (the value recorded in the 'current number' field) for the test item to which the identifier belongs is 'tested' Check whether the total number is less than (S1203). If the number of tests to date is greater than or equal to the total number of tests, the quality measurement management server 100 determines that the test for the corresponding cell has already been completed and no further tests are performed. Therefore, in this case, the quality factor to be measured for the corresponding cell is selected, and the quality measurement command is transmitted to the corresponding measurement device in response to the quality measurement designation request (S1220).

If the test has not been completed yet (S1203), that is, if the number of tests tested so far is less than the 'total number of tests to be tested', check what type of test is specified for that cell, and that type is 'voice call connection'. The other side checks whether it is necessary (S1204). If the other party does not need the test information (for example, a test that becomes a loop back at the base station, etc.), a message for instructing the test to proceed accordingly is configured and transmitted to the corresponding measurement device (S1211).

If the specified test item requires the other party, after confirming the service cell (or other area cell) which should be the other party, and identifying the area cells belonging to the identified partner service cell from the cell mapping diagram as described above, Among the identified cells, the cells in which any one measuring device is located are identified from the intra-cell terminal status information 600.

If there is no cell in which at least one measuring device is located among the identified relative area cells (S1205), since the designated network test cannot be performed, the quality measurement management server 100 receives the previously specified quality measurement designation request. As described above, a message for selecting a quality factor to be measured for the corresponding cell and transmitting a command for measuring the selected quality factor is transmitted (S1220).

If there is at least one cell in which at least one measuring device is currently located among the identified relative area cells, one of the cells is selected, and if there is one measuring device located in the selected cell, a plurality of measuring devices are selected. If so, choose one.

Then, after the measuring device is finally selected, the quality measurement management server 100 transmits a message instructing the network test, not the quality measurement, in response to the received quality measurement designation request (S1210). ). In this case, the test command message includes a test item to be performed (for example, 'voice call connection'), a unique number of a previously selected measuring device, and a number that can be uniquely specified for the current test item. It includes the index number of the item listed in the network test status DB (400).

In one embodiment according to the present invention, when there are a plurality of area cells in which at least one measuring device is currently located, the area cell closest to the center of the counterpart service cell may be selected. For the present embodiment, the cell mapping diagram as described above includes a field in which an index indicating a degree close to the center of the corresponding service cell is recorded for each of the area cells belonging to one service cell.

In addition, according to an embodiment of the present invention, when a plurality of measuring devices are currently located in one area cell, the measuring device which has entered the cell most recently may be selected. For the present embodiment, the above-described terminal tracking information is configured to include a field in which the time of entry into the cell currently located for each terminal item is recorded. In this entry time field, the reception time of the quality measurement designation request message transmitted by the measurement apparatus entering the corresponding cell may be recorded.

When the test command message configured as described above is transmitted, and the test item is received by the measuring device that enters an arbitrary cell (cell C _{p, q in} FIG. 9) in the designated service cell, the control unit of the measuring device determines the test. The test specified in the command message is performed as is. For example, if the test item is 'voice call connection', call connection is made using the communication unit (communication processing unit and cellular modem) of the corresponding device as the destination of the counterpart's unique number included in the received test command message. Try.

The call thus sent is received by a call routing of the mobile communication network to the measuring device previously designated by the quality measurement management server 100 as the other party, and the measuring device accepts the received call to measure both. A call is established between the devices.

If a normal call is made to the call that originated, the origin measuring device records the call attempt as successful and releases the call. If the call is not opened for a call originated by the user and the call is rejected for more than a predetermined time limit, or the incoming call is rejected, the originating measurement apparatus records the call attempt as a failure. If a call tone indicating that the called party is busy is answered for the outgoing call, the calling signal is treated as a test hold for the call signal. In this case, the measuring device does not transmit the test result to the quality measurement management server 100 or configures the test result information as 'test pending' for the specified test.

As such, when the operation according to the test command from the quality measurement management server 100 is obtained and the result is obtained, the originating measurement device configures the test result information as a result to the quality measurement management server 100. Will be provided. The test result information configured at this time includes an index number, information for uniquely identifying a test item, included in a test command message received earlier, an identifier of a current cell that has been tested, and a value indicating a test result ( For example, success or failure).

When the test result information is received from an arbitrary measuring device, the quality measurement management server 100 specifies the test item in the network test status DB 400 as an index number included in the information and specifies the test item. In the test item, the cell identifier included in the test result information is included in the information to reflect the result value. For example, if the result is reflected in the network test status DB 400 configured as shown in FIG. 8, the value of the 'success' field is increased by 1 when the result value is successful, and the value of the 'failure' field is failed. Will increase by 1.

Then, the value of the 'current number' field of the specified test item is increased by 1 to reflect the number of times tested for the corresponding service cell.

According to the exemplary embodiment described above, when the measuring devices mounted on the vehicles are classified into several types due to differences in their performance or functions, the quality measurement management server 100 may measure quality received from an arbitrary measuring device. With respect to the designation request, the measuring device first checks from the device specification table whether it is possible to carry out the specified test matters for the cell, and then responds with a test command message when it can carry out. Of course, when the test item needs the other party, the measuring device that can be specified as the other party is naturally selected among the types of devices capable of performing the test item.

On the other hand, in one embodiment according to the present invention, even for the cells listed in the network test status DB (400), a test zone may be set to give a compensation score or to give a higher compensation score than other cells. have. That is, the quality measurement management server 100, by specifying the cells listed as one test item in the network test status DB (400) as a test zone, the quality for the quality measurement designation request received from any measurement device When responding with a measurement command, identifiers of cells belonging to the specified test zone are included in the response and transmitted. Of course, also at this time, the cell where the arbitrary measuring device is present can be transmitted only when it is within a certain distance from the designated test zone. Then, as described above, the measuring device that receives the response displays a test zone on the display unit, thereby inducing the driver to move the vehicle to the test zone.

The method of identifying various quality elements of the wireless communication network described above using measurement apparatuses mounted on vehicles traveling in an arbitrary path may be applied to quality measurement of a wireless broadcast service that transmits a broadcast signal wirelessly.

Since the bandwidth of a broadcast signal for radio or TV is wide, the signal strength is measured by dividing the band into narrow measurement bands when measuring the reception strength of the broadcast signal. In this embodiment, a separate server (hereinafter referred to as a broadcast signal quality management server) that performs the same operation as the quality measurement management server 100 for managing quality measurement of a wireless communication service is provided, and optionally The measuring unit 24 of the measuring apparatus 200 mounted on the vehicle is alternately configured with a function capable of measuring for each band divided for a band of a designated broadcast signal.

In the present embodiment, the measurement apparatus 200 enters any one of the region cells partitioned on the basis of the longitude and latitude as described above with respect to the region in which the wireless broadcasting service is provided. When the broadcast signal quality management server transmits a quality factor designation request, the broadcast signal quality management server selects a quality factor that is relatively less measured for the corresponding cell from the quality measurement status DB managed by the broadcast signal quality management server. Configure a message to command the measurement of the transmission to the measuring device 200.

In the quality measurement status DB managed by the broadcast signal quality management server, signal strength is listed as a measurement item for each of a plurality of measurement bands for each region cell, and selecting a quality factor to measure means that these measurement bands are selected. This means selecting one or more bands to be measured.

According to an embodiment, other quality factors other than signal strength, for example, the degree of radio signal interference, may be registered for each measurement band for each cell of the quality measurement status DB. Of course, an item of an index indicating the quality of other broadcast signals may be further included and listed as a quality factor to be measured.

In an embodiment in which the radio signal interference degree is further included as a measurement object, the radio signal interference degree and the signal strength are treated as individual quality factors for each measurement band. That is, the degree of radio signal interference or signal strength is considered to be one quality factor in combination with the corresponding measurement band, and a relatively less measured quality factor is selected as a measurement target. Of course, in this embodiment, it is assumed that the measuring section 24 has a function capable of measuring the degree of signal interference for each measuring band.

The control unit 20 of the measurement apparatus 200 is a quality factor specified in a measurement command message received from the broadcast signal quality management server, for example, a specific measurement band, or a signal strength or wireless signal of a specific measurement band. The degree of interference is measured through the measurement unit 24, and the measurement result information is configured on the measured result value as in the above-described embodiment, and the broadcast signal quality management server is transmitted through the communication processor 22. Will be reported.

Then, the broadcast signal quality management server reflects the measurement result information reported through the mobile communication network to the corresponding quality factor of the corresponding cell of the quality measurement status DB managed by the broadcast signal quality management server.

In the above descriptions of various embodiments of measuring the quality of a wireless communication service, contents that can be applied as it is to measure the quality of a wireless broadcast service are operations of the broadcast signal quality management server and the measurement apparatus 200. Since it can be applied as it is, repeated description thereof is omitted here.

The various schemes applied to the method for quality measurement and testing for wireless services, using vehicles traveling in any path, described in detail in the foregoing embodiments, may be implemented as appropriately selected and combined unless they are mutually incompatible. Can be.

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve other various embodiments within the technical spirit and technical scope of the present invention disclosed in the appended claims below. Changes, substitutions or additions will be possible.

20: control unit 21: cellular modem
22: communication processing unit 23: GPS unit
24: measuring unit 25: display unit
26: input interface 26a: touch sensor
27: storage unit 100: quality measurement management server
101: mobile communication network 200: measuring device
300: Quality Measurement Status DB 400: Network Test Status DB

Claims (40)

An apparatus for measuring a quality of wireless communication service,
A communication unit capable of connecting to a wireless communication network and transmitting and receiving data with a remote site using the communication network;
A GPS unit for determining a current position of the device based on a signal received from a satellite;
A measuring unit for measuring signal strength of a wireless signal of a wireless communication network;
A request for specifying a quality factor to be measured for a wireless communication service while transmitting information about a current position grasped by the GPS to a specific server, and specifying a quality factor from the specific server in response to the request. If received, and configured to perform a measurement for the specified quality factor using the communication unit or the measurement unit, and including a control unit for transmitting the result of the measurement to the specific server through the communication unit,
And the information about the current location is information for identifying one unit area to which the current location belongs when the area in which the wireless communication service is provided is divided based on the longitude and latitude. The method of claim 1,
And the controller is configured to request the specific server to designate a quality factor to be measured when the unit area to which the current position grasped by the GPS belongs is changed. The method of claim 2,
And the controller is configured to request the specific server to designate a quality factor to be measured again when the current position determined by the GPS unit belongs to one unit area for more than a predetermined time. The method of claim 2,
When the unit area to which the current position grasped by the GPS unit belongs is different, the control unit writes the quality factor to be measured for the changed unit area based on the response received as requesting the designation of the quality factor in the previous unit area. And if not specified, request the specific server to specify a quality factor to measure and, if specified, perform measurement on the specified quality factor. The method of claim 1,
It is configured to further include a display unit for visually expressing the applied data,
The controller may be configured to display unit regions corresponding to the information in a manner that can be distinguished on an electronic map through the display unit, when information about a plurality of unit regions connected to each other is included in the response. Device. The method of claim 1,
The controller is configured to include information specifying the type of the device in the request and transmit the information to the specific server.
The type is assigned to classify devices based on their function or performance, for devices of the same kind as the device. The method of claim 1,
And the controller is configured to transmit, to the specific server, a unique number assigned to uniquely identify the device, together with the result of the measurement. The method of claim 1,
The controller, if there are a plurality of quality factors specified in the response, and the current position detected by the GPS unit is changed to another unit area while performing the measurement on each of the plurality of quality elements, the controller moves to the other unit area. And send the measurement result for the quality factor whose measurement was completed before the change to the specific server. The method of claim 1,
And the control unit is configured to use the data entity specified in the received response when performing the measurement on the quality factor specified in the response, when the data entity is needed for the measurement. The method of claim 1,
When the control unit receives a response specifying the test for the network from the specific server in response to the request, the control unit controls the communication unit to transmit a call to the other party specified in the response. And transmit to the specific server through the communication unit as a test result whether the originating call is established. The method of claim 1,
It is configured to further include a display unit for visually expressing the applied data,
And the control unit causes the compensation score to be displayed on the display unit when the compensation server is notified of the device. The method of claim 1,
The control unit is further configured to continuously determine the moving speed of the device,
And selectively performing a measurement on the quality factor specified in the response based on the current velocity of movement identified. The method of claim 12,
And when there are a plurality of quality elements specified in the response, selecting from the plurality of quality elements based on the identified current moving speed, and performing measurement only on the selected quality elements. The method of claim 1,
If the quality factor specified in the response is a predetermined specific element, the control unit continues to measure the specific element even if the current position grasped by the GPS unit is changed from the unit region in which the measurement of the specific element is started to another unit region. And configured to. The method of claim 1,
The quality factor measured by the controller includes at least two of the factors that determine the quality of the wireless communication network. The method of claim 1,
It further comprises at least one sensor for detecting a condition related to the surrounding environment for measuring the quality of the wireless communication service,
And the control unit is configured to transmit information on the state detected by the sensor when performing the measurement on the specified quality factor to the specific server together with the result of the measurement. An apparatus for measuring the quality of a wireless broadcast service,
A communication unit capable of connecting to a wireless communication network and transmitting and receiving data with a remote site using the communication network;
A GPS unit for determining a current position of the device based on a signal received from a satellite;
A measuring unit for measuring signal strength of a broadcast signal transmitted wirelessly;
A request for specifying a quality factor to be measured for a wireless broadcasting service while transmitting information about a current location grasped by the GPS unit to a specific server, and specifying a quality factor from the specific server in response to the request. Is received, the controller comprises a control unit for transmitting the result of the measurement to the specific server through the communication unit after performing the measurement on the specified quality factor using the measurement unit,
The information about the current position is information for identifying one unit area to which the current position belongs when the zone in which the wireless broadcasting service is provided is divided based on the longitude and latitude,
And the specified quality factor designates a band to be measured among bands divided for the band of the broadcast signal. In the method for the server for receiving information transmitted by a plurality of measuring devices mounted on the vehicle, using the information to determine the quality of the wireless service,
Receiving, from any one of the measuring devices, a quality element designation request including identification information of a unit area to which the current location belongs;
Among the plurality of quality factors for the wireless service set to measure for the unit area corresponding to the identification information, one or more quality factors that are measured relatively less are selected, and a measurement command for the selected quality factors is received. Two steps sent in response to the element specification request,
Receiving the result information obtained by measuring the selected quality factor from the arbitrary measuring device;
And including four steps of reflecting the received result information as a measurement value of the selected quality factor for the unit area corresponding to the identification information.
And wherein the unit area is any one area when the area where the wireless service is provided is divided based on the longitude and latitude. The method of claim 18,
In the second step, one or more relatively small quality factors measured for each of the one or more unit areas adjacent to the unit area corresponding to the identification information are selected and included in the measurement command together with the identification information of each unit area. How to be. The method of claim 18,
Examining a rate at which a measure of a quality factor is obtained for a plurality of unit areas created by the division into a region where the wireless service is provided, and based on the checked ratio, a portion of the plurality of unit areas is selected. It further comprises the step of setting a specific zone to include,
The second step is to include the information on the specific zone set in the response when selecting a quality factor for the quality factor designation request and transmitting a response. The method of claim 20,
The step of setting a specific zone is to set consecutive unit regions, or all unit regions belonging to an administrative unit, in which the ratio at which a measured value is obtained is less than a predetermined reference value to the specific zone. The method of claim 18,
It further comprises the step of setting to a specific zone for the service area for which a specific test should be performed,
The second step is to include the information on the specific zone set in the response when selecting a quality factor for the quality factor designation request and transmitting a response. The method of claim 20 or 22,
In the step 2, the information about the specific zone is included in the response only when the set specific zone is closer than a predetermined limit distance from the unit area corresponding to the identification information. The method of claim 23,
And the limit distance is selected and applied based on the type information of the vehicle equipped with the arbitrary measuring device included in the received quality factor designation request among differently designated distances. The method of claim 20 or 22,
When receiving a result of a measurement or test performed in an arbitrary unit area from one of the measuring devices, if the arbitrary unit area corresponds to the predetermined zone, the predetermined compensation score is determined. The method further comprises the step of giving a unique number assigned to the measuring device of. The method of claim 25,
And the step 4 further comprises the step of notifying the arbitrary measuring device of the total compensation score which has been given so far for the arbitrary measuring device by the giving step. The method of claim 18,
In the second step, the quality factors that can be measured by the type to which the measurement apparatus belongs can be identified, and among the checked quality factors, the quality factors measured relatively less for the unit area corresponding to the identification information are identified. How to select. The method of claim 18,
In the second step, if a specific test is designated for the unit area corresponding to the identification information, the command to perform the specific test instead of the measurement command is transmitted in response to the quality element designation request. . The method of claim 28,
In the second step, if the other service area is designated for the specific test, it is checked whether another measuring device is currently located in the other service area, and when the other measuring device is located, it is given to the other measuring device. Transmitting the unique number included in the response. The method of claim 29,
In the second step, when there are a plurality of other measuring devices located in the counterpart service area, one or more unit areas belonging to the counterpart service area in which the plurality of other measuring devices are located are located at the center of the counterpart service area. Selecting the closest unit area and including in the response a unique number of another measuring device located within the selected unit area. The method of claim 30,
In the second step, when the plurality of other measuring devices are located in the selected unit area, the response includes the unique number of the other measuring device most recently entering the selected unit area. The method of claim 18,
In step 4, if the received result information indicates that the measured value is less than or equal to a specified threshold value for the selected quality factor, the unit area corresponding to the identification information may be visually distinguished from other unit areas. And performing the process of displaying on the display means. The method of claim 18,
If the received result information indicates that the measured value is less than or equal to a specified threshold value for the selected quality factor, further comprising the step of strengthening the measurement of the selected quality factor for the unit area corresponding to the identification information; How. The method of claim 33,
In the step 5, when the measurement of the selected quality factor is instructed to any measuring device, the period of the measurement is shorter than before, or the target measurement number for the selected quality factor is further increased. To enhance the measurement. The method of claim 18,
In step 4, if the received result information includes information that detects a state indicating a surrounding environment when acquiring a measurement value of the selected quality factor, the detected information corresponds to the identification information. And recording the measurement environment information in association with the selected quality factor for the unit area. The method of claim 18,
The quality elements set to be measured for the unit area corresponding to the identification information may be changed and set according to the day of the week, the time zone, or the weather. The method of claim 18,
The target measurement number of each of the quality factors set to measure the unit area corresponding to the identification information may be changed and applied according to the day of the week, the time zone, or the weather. The method of claim 18,
The unit area may have a different size according to the type of the area where the wireless service is provided, and the type of the area may be defined so that a city having a population greater than or equal to 1 million and having a population greater than or equal to 1 million is distinguished from at least other areas. How. The method of claim 38,
Even for a city having a population greater than or equal to the reference value, in the case of one or more specific zones or roads, the area is divided into smaller unit areas than the size of the divided unit area for the zone or the road. The method of claim 18,
The wireless service is a wireless communication service provided by a wireless communication network or a wireless broadcast service provided by a broadcast signal transmitted wirelessly.

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