JP3592268B2 - Area situation monitoring system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an area status monitoring system, and more particularly, to an area status monitoring system that performs service area measurement and service area monitoring in maintenance and fault investigation of a W-CDMA system.
[0002]
[Prior art]
Conventionally, a field test for the purpose of verifying a failure of a mobile phone system or a technical verification related to radio wave propagation has been performed by a measurer on site. In addition, for systematic failures such as the dead zone of radio waves generated by the influence of weather or newly-built buildings, etc., relying on complaint information from users, verifying failures and measuring areas based on the complaint information And so on.
[0003]
[Problems to be solved by the invention]
However, the conventional system described above has the following problems. The first problem is that a failure in the entire service area cannot be detected, and the detection depends on complaint information from a user. The reason for this is that it is difficult to observe and investigate the ever-changing communication environment such as unusual weather in each region and new buildings mainly built in urban areas.
[0004]
A second problem is that, at present, a large amount of investment is required to solve the first problem. The reason for this is that it is necessary to secure specialized human resources and equipment for the verification of faults and the area measurement, and to measure the entire service area every day and every day.
[0005]
The present invention has been made in view of such a situation, and enables to visually monitor an area situation that dynamically changes daily depending on the environment, and to detect a radio wave propagation obstacle or the like. Is what you do. Further, the service area can be detected by using the communication of the end user, and the cost performance of the area measurement can be improved.
[0006]
[Means for Solving the Problems]
The area situation monitoring system according to claim 1, wherein the area situation monitoring system monitors the situation of an area in which a W-CDMA terminal can communicate via a base station, wherein the terminal is a base station. The received voltage value of the cell group notified from the base station control device that controls the cell, and among the cells other than the cell group, the received voltage value of the received voltage value that is equal to or higher than the predetermined reference level is transmitted to the base station control device. A reporting unit for reporting the position of the terminal; a map information storage unit for storing predetermined map information; a position of each terminal calculated by the position calculation unit; and a report from each terminal. Mapping means for determining the distance from the base station corresponding to the cell to each terminal based on the received voltage value of each cell, and mapping the position of the largest distance to map information for each direction from the base station; Display means for displaying map information on which the position of the terminal has been mapped by the mapping means, wherein the display means comprises, among points indicating the position of the terminal mapped on the map information for each direction, those belonging to the same cell. Are connected by a line and displayed .
An area status monitoring method according to claim 2, wherein the W-CDMA type terminal monitors the status of an area in which communication is possible via a base station, wherein the terminal is a base station. The received voltage value of the cell group notified from the base station control device that controls the cell, and among the cells other than the cell group, the received voltage value of the received voltage value that is equal to or higher than the predetermined reference level is transmitted to the base station control device. A reporting step for reporting; a position calculating step for calculating a position of the terminal; a map information storing step for storing predetermined map information; a position of each terminal calculated in the position calculating step; and a report from each terminal. Based on the received voltage value of each cell, the distance from the base station corresponding to the cell to each terminal is determined, and for each azimuth from the base station, a mapping that maps the position of the largest distance to map information. And a display step of displaying map information on which the position of the terminal is mapped in the mapping step. In the display step, among the points indicating the position of the terminal mapped to the map information for each direction, the same point is displayed. It is characterized in that cells belonging to cells are connected by lines and displayed .
The area status monitoring program according to claim 3 is an area status monitoring program for controlling an area status monitoring system for monitoring the status of an area in which a W-CDMA terminal can communicate via a base station. The terminal receives, from the base station controller controlling the base station, the reception voltage value of the cell group and the reception voltage value of the cells other than the cell group, the reception voltage value of which is higher than a predetermined reference level. A report step for reporting to the base station controller, a position calculation step for calculating the position of the terminal, a map information storage step for storing predetermined map information, and a position of each terminal calculated in the position calculation step. Then, based on the received voltage value of each cell reported from each terminal, the distance from the base station corresponding to the cell to each terminal is obtained, and the distance is largest for each direction from the base station. A mapping step of mapping the position of the castings in the map information, and a display step of displaying the map information the position of the terminal is mapped in the mapping step is performed in the area condition monitoring system, in the display step, the map for each direction Among the points indicating the position of the terminal mapped to the information, the area status monitoring system is controlled so that points belonging to the same cell are connected by a line and displayed .
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a diagram illustrating a configuration example of an embodiment of a W-CDMA (wideband-CDMA (code division multiple access)) system to which an area situation monitoring system according to the present invention is applied. An outline of the present embodiment will be described with reference to FIG. To the W-CDMA terminal 1, cell numbers of cells corresponding to a plurality of base stations 2 close to the terminal 1 are broadcast as a number group from the base station control device 3 via the base station 2. At this time, in addition to the cell corresponding to the broadcasted number group, the terminal 1 combines information on the cell numbers of other cells that can be received at a reception level equal to or higher than the predetermined reference level and the number group. , To the base station controller 3.
[0008]
Further, the base station control device 3 and the base station 2 have a function of performing selective synthesis of communication, which can be said to be a feature of W-CDMA. In other words, it has the ability to grasp in detail how much delay is involved in each of a plurality of delayed communication signals. In the W-CDMA system, a plurality of wireless communication paths are set and communication is performed using this function. Therefore, by measuring the propagation delay in detail for each wireless communication path, the position coordinates of the terminal can be specified.
[0009]
In the present embodiment, the base station reception voltage information measured by the terminal 1 and the position coordinates of the terminal 1 calculated by the base station control device 3 are combined and reported to the monitoring console 4, and the monitoring console 4 electronically outputs the information. It has a function to merge with map information. Then, it has a function of displaying the electronic map information as a result of merging on the screen of the display unit 14 of the monitoring console 4.
[0010]
As a result, every time an unspecified number of end users use this system, the base station reception voltage information corresponding to the position information indicating the position of each user is updated, and the daily changing area conditions are visually observed. It is possible to do. In addition, by comparing with the area situation at the time of opening the base station, an effect that the failure can be easily detected can be expected.
[0011]
Next, the configuration and operation of a W-CDMA system to which the area situation monitoring system of the present invention is applied will be described in detail with reference to FIG. As shown in FIG. 1, the present embodiment includes a terminal 1 used by a user, a base station 2 as a radio relay station, a base station control device 3 for controlling the base station 2 and the terminal 1, and a system And a monitoring console 4 for monitoring the data. Actually, there are a plurality of terminals 1 and a plurality of base stations 2. However, here, these are not particularly distinguished but are described as the terminals 1 and the base stations 2. Although the overall W-CDMA system still includes higher-level devices, it is not directly related to the present invention, and a description and illustration thereof are omitted here.
[0012]
First, the terminal 1 has a base station reception voltage report unit 11 that receives a control signal transmitted from the base station 2 and reports a base station control signal reception voltage value indicating the reception level of the control signal. . The base station control device 3 includes a position information calculation unit 12 that calculates position information such as position coordinates of the terminal 1 and a report unit 13 that reports position information and the like obtained by the calculation to the monitoring console 4. . The monitoring console 4 includes a map information storage unit 16 for storing map information, a data merge processing unit 15 for merging the position coordinate information of the terminal 1 and the map information, and a merge of the position coordinate information of the terminal 1 and the map information. And a display unit 14 for displaying the data.
[0013]
During communication, the base station reception voltage report unit 11 of the terminal 1 collects radio waves of the plurality of base stations 2 which are currently being received at regular intervals in units of radio zones (cells), and transmits the radio waves to the base station control device 3. Report. At this time, in the base station controller 3, the position information calculator 12 measures the position coordinates of the terminal 1 that has reported the information. On the other hand, the report unit 13 combines the position coordinate information of the terminal 1 as a calculation result calculated by the position information calculation unit 12 with the received voltage value of the base station control signal reported by the terminal 1 and reports it to the monitoring console 4. I do.
[0014]
The map information storage unit 16 of the monitoring console 4 stores the position coordinate information reported from the report unit 13 of the base station control device 3 and the received voltage value of the base station control signal. The stored position coordinate information and the received voltage value of the base station control signal are combined with the map information by the data merge processing unit 15, and an area map is drawn on the map. This information, that is, the one in which the area map is drawn on the map, is displayed on the display unit 14.
[0015]
Here, the data merge processing unit 15 will be described in detail with reference to FIG. The data merge processing unit 15 includes an azimuth / distance measurement unit 21, a determination unit 22, a mapping unit 23, and a drawing unit 24. Among these, the specific flow of the processing of the azimuth / distance measuring unit 21, the determining unit 22, and the mapping unit 23 will be described with reference to the flowchart of FIG.
[0016]
First, when the position coordinate information of the terminal 1 is input, the azimuth / distance measuring unit 21 measures the azimuth of the terminal 1 viewed from the antenna of the base station 2 in step A1. Next, in step A2, the azimuth / distance measuring unit 21 determines which azimuth group of the azimuth groups divided at 10 ° intervals corresponds to the azimuth of the terminal 1. Next, in step A3, the direction / distance measuring unit 21 measures the distance between the position coordinates of the base station 2 and the position coordinates of the terminal 1 based on the input position coordinate information of the terminal 1.
[0017]
Next, in step A4, the determination unit 22 determines whether the distance between the terminal 1 and the base station 2 measured in step A3 is the largest in the same azimuth group. That is, it is determined whether or not the terminal 1 is farthest from the base station 2 in the azimuth group to which the terminal 1 belongs.
[0018]
As a result, when it is determined that the terminal 1 is not farthest from the base station 2, that is, it is determined that there is already a measurement result having a value larger than the value of the measurement result as the result measured in step A3. In this case, the process proceeds to step A5, and the measurement result measured in step A3 is discarded. On the other hand, when it is determined that the terminal 1 is farthest from the base station 2, that is, when it is determined that the value of the measurement result in step A3 is the largest, the process proceeds to step A6.
[0019]
In step A6, based on the map information stored in the map information storage unit 16, the mapping unit 23 points to a position on the corresponding electronic map corresponding to the position coordinates of the terminal 1 farthest from the base station 2. Is struck. In this way, the position of the terminal 1 farthest from each base station 2 for each azimuth group is mapped on the map. When the position corresponding to the position coordinates of the terminal 1 is mapped on the map, the drawing unit 24 in FIG. 2 assigns one of the points mapped on the map for each azimuth group to one belonging to the same cell. Connect with book lines. In this manner, an area map of the base station 2 for each wireless zone can be created. The created area map is stored in the map information storage unit 16 as electronic data. The stored area map data is displayed on the screen of the display unit 14 of the monitoring console 4 in FIG. 1, and the user can visually see the status of the service area.
[0020]
As described above, the present embodiment has the following advantages. A first effect is that an area check can be performed for each wireless zone even in an environment that changes daily. The reason is that the service area can be measured using communication of general users.
[0021]
A second advantage is that the area test can be performed at no cost. The reason is that, similar to the first effect, the area test is performed using communication of general users.
[0022]
It is needless to say that the configuration and operation of the above embodiment are examples and can be appropriately changed without departing from the spirit of the present invention.
[0023]
【The invention's effect】
As described above, according to the present invention, the reporting means of the terminal transmits the reception voltage value of the cell group notified from the base station control device controlling the base station and the reception voltage value of the cells other than the cell group. Reports the received voltage values of those having a predetermined reference level or higher to the base station controller, the position calculating means calculates the position of the terminal, the map information storage means stores the predetermined map information, and the mapping means Based on the position of each terminal and the received voltage value of each cell reported from each terminal, determine the distance from the base station corresponding to the cell to each terminal, and for each direction from the base station, the distance is the largest The position of the object is mapped to the map information, and the display means displays the map information to which the position of the terminal is mapped. In addition, the display means connects points belonging to the same cell with lines indicating points of the terminal mapped to the map information for each direction and displays the points, so that the points are dynamically changed every day depending on the environment. The changing area situation can be visually monitored, and an obstacle such as radio wave propagation can be detected. Further, since the area status can be monitored and the service area can be detected using the communication of each terminal, the cost performance of the area measurement can be improved.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an overall configuration example of an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration example of a data merge processing unit.
FIG. 3 is a flowchart showing a procedure for mapping a position of a terminal farthest from a base station on a map.
[Explanation of symbols]
Reference Signs List 1 terminal 2 base station 3 base station control device 4 monitoring console 11 base station reception voltage report unit 12 position information calculation unit 13 report unit 14 display unit 15 data merge processing unit 16 map information storage unit 21 azimuth / distance measurement unit 22 determination unit 23 mapping unit 24 drawing unit

Claims (3)

An area status monitoring system for monitoring the status of an area where a W-CDMA terminal can communicate via a base station,
The terminal receives a reception voltage value of a cell group notified from a base station control device that controls the base station, and receives a reception voltage value of a cell other than the cell group whose reception voltage value is equal to or higher than a predetermined reference level. A voltage value, a reporting unit for reporting to the base station control device,
Position calculating means for calculating the position of the terminal,
Map information storage means for storing predetermined map information;
The position of each terminal calculated by the position calculation means, based on the received voltage value of each cell reported from each terminal, to determine the distance from the base station corresponding to the cell to each terminal, the base station Mapping means for mapping the position of the largest distance to the map information for each direction from
Display means for displaying the map information to which the position of the terminal is mapped by the mapping means,
The display unit displays, by connecting, by a line, points belonging to the same cell among points indicating the position of the terminal mapped to the map information for each direction. Condition monitoring system. An area status monitoring method for monitoring the status of an area where a W-CDMA terminal can communicate via a base station,
The terminal receives a reception voltage value of a cell group notified from a base station control device that controls the base station, and receives a reception voltage value of a cell other than the cell group whose reception voltage value is equal to or higher than a predetermined reference level. Comprising a reporting step of reporting a voltage value to the base station controller,
A position calculation step of calculating the position of the terminal,
A map information storage step of storing predetermined map information;
The position of each terminal calculated in the position calculation step, based on the received voltage value of each cell reported from each terminal, determine the distance from the base station corresponding to the cell to each terminal, the base station For each azimuth from, a mapping step of mapping the position of the largest distance to the map information,
A display step of displaying the map information to which the position of the terminal is mapped in the mapping step,
In the display step, among the points indicating the position of the terminal mapped to the map information for each azimuth, points belonging to the same cell are displayed by connecting them with a line. Area status monitoring method. An area status monitoring program for controlling an area status monitoring system for monitoring the status of an area where a terminal of the W-CDMA system can communicate via a base station,
To the terminal, the reception voltage value of the cell group broadcast from the base station control device controlling the base station, and, among the cells other than the cell group, the reception of the reception voltage value of a predetermined reference level or more. Causing a voltage value to be reported to the base station controller,
A position calculation step of calculating the position of the terminal,
A map information storage step of storing predetermined map information;
The position of each terminal calculated in the position calculation step, based on the received voltage value of each cell reported from each terminal, determine the distance from the base station corresponding to the cell to each terminal, the base station For each azimuth from, a mapping step of mapping the position of the largest distance to the map information,
Displaying the map information to which the position of the terminal is mapped in the mapping step, and
In the displaying step, the area status monitoring system is controlled so that points belonging to the same cell among points indicating the position of the terminal mapped to the map information for each direction are connected by a line and displayed. An area status monitoring program characterized in that:

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