JP3573110B2 - Service area test system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a service area test system, and more particularly to a service area test system that enables efficient measurement of service area, optimization, management, and the like when a new base station is installed.
[0002]
[Prior art]
In a mobile communication system, when a new base station is installed, an area measuring device is conventionally mounted on a mobile vehicle such as an automobile in order to secure an optimum service area and communication quality. , The reception electric field strength, BER (Bit Error Rate), C / N (carrier noise ratio), etc. are measured by an area measurement device, an analysis device is separately prepared, and the area obtained by the measurement by the area measurement device is obtained. It analyzes communication quality, etc., compares it with simulation results, and evaluates and manages it.
[0003]
In the initial stage of the measurement, the measurement is performed depending on the settings of the base station parameters and the antenna tilt based on the simulation. Therefore, in most cases, the analysis result does not become the expected service area or communication quality. Therefore, various parameters of the base station, antenna tilt, etc. are adjusted using a maintenance device attached to the mobile communication system, and the above-described measurement is performed again on the area measurement device. A method of repeatedly performing a procedure of performing adjustment by a device has been adopted.
[0004]
[Problems to be solved by the invention]
However, according to the conventional service area test system, it is necessary to repeatedly perform measurement with the area measurement device and adjustment with the maintenance device in order to secure the initially expected service area and communication quality, which is extremely inefficient and extremely Great effort. Conventionally, careful preparation is required, such as preparing dedicated software and map data of an assumed service area in a computer (PC) on the area measuring device side in advance. Different map data had to be prepared for each measurement.
[0005]
An object of the present invention is to provide a service area test system capable of efficiently performing service area measurement, optimization, management, and the like of a newly installed base station.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a service area test system for measuring, optimizing, and managing a service area of a newly installed base station, wherein the service area is calculated based on a simulation result, and the service area is calculated. An area measurement device that moves in the interior to perform various measurements and optimization of the base station, a data processing base station for performing communication for data processing with the area measurement device, the newly installed base station, and A mobile communication system including a plurality of control stations that control these base stations, a network connected to the mobile communication system, and connected to the network, analyze the measurement data sent from the area measurement device, and analyze the A server for returning a processing result or the like to the area measuring device, wherein the area measuring device The parameters of the newly established base station provides coverage testing system, characterized in that adjusted by remote control antenna tilt based on.
[0007]
According to this configuration, the area measurement device performs measurement in the service area of the newly installed base station, and transmits the measurement data to the mobile communication system. A server is connected to a network connected to the mobile communication system, and measurement data taken by the area measurement device and taken into the server is analyzed by the server. The analysis result is returned to the area measurement device. The area measurement device remotely controls the mobile communication system based on the analysis result, and adjusts parameters of a newly installed base station, antenna tilt, and the like. Therefore, the service area measurement, optimization, management, and the like of the newly installed base station can be efficiently performed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a service area test system of the present invention.
The service area test system of the present invention includes an area measurement device 100, a mobile communication system 200, a network 300, and a map / data processing server 400. The area measurement device 100 can communicate with the mobile communication system 200 wirelessly. The mobile communication system 200 is connected to a network 300, and a map / data processing server 400 is connected to the network 300. The map / data processing server 400 has a function of storing map data around the area traveling point, analyzing data measured by the area measuring device 100, and transmitting a result of the processing to the area measuring device 100 side. I have. As described above, by performing the analysis processing of the measurement data in the map data processing server 400, when the number of owned area measurement apparatuses 100 increases, the processing of all the area measurement apparatuses 100 can be centrally managed and the area can be centrally managed. This eliminates the need to install an analysis program for each measuring device 100, thereby reducing the storage capacity of the storage device and shortening the processing time in the area measuring device 100. Further, the price of the area measuring device 100 can be reduced.
[0009]
The area measuring device 100 includes a notebook PC (personal computer) 101, a coverage measuring device 102, a GPS receiver 103, and a data processing transceiver 104. 105, 106, and 107 are antennas. The coverage measuring device 102 is used to measure the received electric field strength, BER, C / N, and the like, and to obtain measurement data. The GPS receiver 103 receives the position information (longitude, latitude) of the point where the measurement data was obtained. The data processing transceiver 104 downloads the map data of the service area predicted from the simulation result from the map data / processing server 400, and uses the data to obtain topographical information and road information of the measurement point. As described above, by storing the map data in the map data processing server 400, there is no need to prepare the area measurement device 100, and even if the number of owned area measurement devices 100 increases, the equipment cost of the system can be reduced.
[0010]
The mobile communication system 200 includes control stations 201 and 202, base stations to be measured 203 and 204 connected to the control station 201, and a data processing base station 205 connected to the control station 202. 206, 207 and 208 are antennas. The data processing base station 205 adjusts optimization parameters and antenna tilt of the measured base stations 203 and 204 via the control stations 201 and 202.
[0011]
FIG. 2 shows the relationship between the service areas of the base stations 203 and 204 to be measured and the service area of the base station 205 for data processing. The service area 501 of the data processing base station 205 has a service area 502 covering a plurality of base stations to be measured including the base stations to be measured 203 and 204.
[0012]
In the configuration of FIG. 1, the area measuring device 100 predicts a service area from a simulation result performed in advance. Based on the result, the area measuring apparatus 100 accesses the map / data processing server 400 by the data processing transceiver 104 via the data processing base station 205 → the control station 202 → the network 300 and downloads the map data. I do.
[0013]
The area measuring apparatus 100 moves within the expected service area (measurement target area), and during the movement, the received signal strength, the BER, the C / N and other service areas, and the communication quality via the coverage measuring device 102. Receive basic data for evaluation in real time. At the same time, the GPS receiver 103 receives position information (longitude and latitude), and displays this information together with the map data downloaded from the map / data processing server 400 on the display of the notebook PC 101. The measurement is performed on the service area obtained from the result of the simulation performed in advance, and the measurement data is sequentially transmitted to the data processing base station 205 by the data processing transceiver 104, and the map / data processing server 400 is transmitted via the network 300. Upload to.
[0014]
When the data of the assumed service area can be obtained to a certain extent, the map / data processing server 400 statistically analyzes the BER, the call blocking rate, and the like, compares the analysis result with the simulation result, and compares the result with the area measurement device. Return to 100. The area measurement apparatus 100 uses the data processing transceiver 104 to determine the parameters and antenna tilts of the base stations 203 and 204 to be measured in order to absorb the difference from the simulation result. -Connection is performed through the route of the data processing server 400 → the control station 201 → the base stations 203 and 204 to be measured, and the adjustment is controlled.
[0015]
As described above, according to the embodiment of the present invention, the map / data processing server 400 is accessed from the area measurement device 100 side to obtain map data of the service area predicted by simulation, and various types of data are obtained in the service area. Is measured, and the result is sent to the map / data processing server 400 so that the map / data processing server 400 performs an analysis process. In order to be absorbed, it connects to the base stations 203 and 204 to be measured by remote control, and adjusts these parameters and antenna tilt. This has the following specific advantages.
[0016]
(1) Area measurement, analysis, base station parameters, and antenna tilt adjustment can be collectively managed by the area measurement apparatus 100. Therefore, even if the repetition of measurement and adjustment is large, the optimum area and communication quality can be shortened in a short time. Can be adjusted.
(2) Since map data is stored on the map / data processing server 400 side, the area measurement device 100 does not need to prepare new map data for each measurement area.
(3) Since the mobile communication system 200 is used for data processing, measurement data can be displayed and analyzed in real time even when the area measurement device 100 is moving (running). Faster and more efficient measurements are possible.
(4) Since the analysis of the measurement data can be performed by the map / data processing server 400, there is no need to prepare an analysis device unlike the related art.
[0017]
Although the terrestrial mobile communication system 100 is used for data processing in the above embodiment, a satellite mobile communication system may be used instead. Further, the mobile communication system 200 can be applied to a mobile phone, a PHS (Personal Handyphone System), and a car phone system.
[0018]
【The invention's effect】
As is clear from the above, according to the service area test system of the present invention, a network is connected to the mobile communication system side, a server is connected to the network, and the server is configured to be accessible from the area measurement device. The device sends measurement data measured in the service area of the newly established base station to the server, analyzes the measurement data in this server, returns the analysis result to the area measurement device, and remotely controls the mobile communication system based on the returned information. Since the control is performed and the parameters of the newly installed base station, the antenna tilt, and the like are adjusted, the service area measurement, optimization, management, and the like of the newly installed base station can be efficiently performed.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a service area test system of the present invention.
FIG. 2 is an explanatory diagram showing a relationship between a service area of a measured base station and a service area of a data processing base station.
[Explanation of symbols]
100 area measuring device 101 notebook PC
102 Coverage measuring device 103 GPS receiver 104 Data processing transceiver 200 Mobile communication system 201, 202 Control station 203, 204 Base station to be measured 205 Data processing base station 300 Network 400 Map / data processing server

Claims (4)

In a service area test system that measures, optimizes, and manages the service area of a newly established base station,
An area measurement device that calculates the service area based on a simulation result, moves within the service area, performs various measurements and optimizes the base station,
A data processing base station for performing communication for data processing with the area measurement device, the newly installed base station, and a mobile communication system including a plurality of control stations that control these base stations;
A network connected to the mobile communication system,
A server connected to the network, analyzing the measurement data sent from the area measurement device, and returning a processing result and the like to the area measurement device,
A service area test system, wherein the area measuring device adjusts a parameter and an antenna tilt of the newly installed base station by remote control based on a processing result or the like from the server. 2. The service area test system according to claim 1, wherein the area measurement device adjusts a parameter and an antenna tilt of the newly installed base station so that a difference from a simulation result is absorbed. The area measurement device, a computer that manages the whole,
A measuring device for measuring a reception electric field strength, a BER (Bit Error Rate), a C / N (carrier noise ratio), and the like;
A GPS (Global Positioning System) receiver for receiving position information (longitude, latitude) at the measurement data acquisition point;
The service area test system according to claim 1, further comprising a data processing transceiver that transmits measurement data and downloads the map data from the server. The service area according to claim 1, wherein the server stores map data including the service area, and provides the map data to the area measurement device in response to a request from the area measurement device. Testing system.

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