TWI400968B - Method of Operational Efficiency Analysis of Mobile Network Base Station - Google Patents

Description

Mobile network base station operation efficiency analysis method

The invention relates to a method for analyzing the operational efficiency of a mobile network base station, in particular for using a GIS technology to analyze: (1) whether the control channel frequency setting and the antenna azimuth of the base station in a certain area generate intra-system interference; 2) Whether the position of the adjacent cells set by each cell of the base station is reasonable and whether the neighboring cells use the same control channel frequency; (3) Whether the handover of each cell of the base station and its neighboring cells is paired. Optimize the operational efficiency of the base station.

Due to the vast area of the mobile network, it is not easy to master the operational performance of the base stations in the whole area. In addition, the development of high-rise floors in various places is in full swing. For the previously planned base stations, the base stations are affected by terrain and ground. The impact of the material is forced to be adjusted again. This is a high cost for the telecom operators to maintain the original communication quality. Therefore, how to reduce the operating cost and improve the operational efficiency of the existing base station is an urgent task. The previous approach was to use the control channel frequency planning software and signal strength simulation software to determine the base station position and antenna azimuth. Then, the field personnel were asked to set up the base station according to the proposed location, and finally the road test was actually carried out by the product reform personnel. To confirm the operational efficiency of the base station. This analysis method can only analyze the initial operational efficiency of the base station, which seems reasonable but not exhaustive, because it ignores the neighboring cell leakage or the neighboring cell position is too far and its neighboring cells use the same control channel frequency. For the lethality of mobile communication quality, in addition, if the handover of the base station cells and their neighboring cells is not correct, it will also pose a serious threat to the communication quality of mobile phones. Based on the above considerations, we have combined the three base station operational efficiency analysis methods to propose the patents of this article.

The relevant patents are retrieved from the domestic and foreign patent database websites, and the differences between the prior technologies and the innovative technologies of this patent are summarized as follows: (1) Most of the patents are for the overall frequency planning of the mobile network base stations in a certain region, if the location of a single station changes. At the same time, all frequency distributions in the area need to be re-evaluated. Different from this patent, the frequency and azimuth analysis can be performed separately for a single new station, without changing the surrounding base station frequency and antenna azimuth. (2) Part of the frequency planning patent still needs to be matched with the measurement data of the mobile phone to assist the base station frequency planning. Although the accuracy of the road test result to assist the judgment is high, the actual site measurement is not in line with economic benefits, and The method to be applied for in this patent is not the same. (3) Chunghwa Telecom's patent for “Azimuth Planning and Optimization of Cellular Antennas for Base Stations”, only antenna azimuth analysis without control channel frequency interference analysis, because there is no control channel frequency confirmation mechanism, so there is control channel same/neighbor The risk of frequency interference. (4) The technical project of the present invention is closely related to the operational efficiency analysis of the base station, including the analysis method of the base station control channel frequency and the antenna azimuth; the analysis of the adjacent cell position and the use of the same control channel frequency; the analysis of the unpaired cells of the delivery cell Methods, etc., are important indicators for analyzing the operational efficiency of the base station, and are not comparable to other single project patents.

It can be seen that there are still many shortcomings in the above-mentioned methods of use, which is not a good design, but needs to be improved.

In view of the shortcomings derived from the above-mentioned conventional methods, the inventor of the present invention has improved and innovated, and after years of painstaking research, he finally succeeded in researching and developing the method for analyzing the operational efficiency of the mobile network base station.

The object of the present invention is to provide a method for analyzing the operational efficiency of a mobile network base station, which is to extend the traditional method only to the base station control channel planning, and further expands to the neighbor cell performance analysis to make the base station antenna azimuth and its control channel. Frequency optimization, optimization of adjacent cell locations, and optimization of adjacent cell delivery lists.

The method for analyzing the operational efficiency of the mobile network base station that can achieve the above object is to analyze the operational performance of the base station through the GIS technology by using the established base station geographic information database, which includes: (1) a certain area Whether the control channel frequency setting of the internal base station and the antenna azimuth will generate an analysis process of intra-system interference; (2) whether the adjacent cell position set by each cell of the base station is reasonable and whether the same control channel frequency is used for the analysis process; (3) Whether the handover of each cell of the base station and its neighboring cells is set in a paired analysis process.

The invention is based on the base station geographic database, and analyzes whether the base station control channel frequency and the antenna azimuth setting generate intra-system interference by GIS technology, and then analyzes whether the adjacent cell position setting has a phenomenon of too far and adjacent cells. Whether the service cell uses the same control channel frequency, and finally confirms whether the service cell and the individual neighbor cells are paired to achieve the purpose of improving the operational efficiency of the base station in the whole region.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic diagram of the data source generated by the present invention, which mainly uses the base station configuration data (101) and the traffic data (102) to establish base station geographic data by using data association technology. Library (103). 2 is a flow chart of the operation performance analysis of the base station of the present invention, and the steps include analyzing, by using the base station geographic database, whether the control channel frequency setting and the antenna azimuth of the base station in a certain area generate system interference (201), if If intra-system interference is generated, the azimuth of the base station antenna and its control channel frequency are optimized; otherwise, it is analyzed whether the position of the adjacent cells set by each cell of the base station is reasonable and whether the same control channel frequency is used as the serving cell (202). If not, the process of optimizing the position of the adjacent cells is performed; otherwise, whether the handover setting of each cell of the base station and its neighboring cells is paired (203), and if not, the optimization of the adjacent cell delivery list is performed. Process; otherwise, the base station operation efficiency analysis process ends.

Please refer to FIG. 3 , which is a flow chart of azimuth and control channel frequency analysis of the base station antenna of the present invention, and the steps thereof include:

a. Determine whether the base station is within the defined range. If it is outside the defined range, it will not be analyzed. Otherwise, the next step will be carried out, where the definition is 10 km in the suburbs; 5 km in the sub-urban area; 3 km in the metropolitan area;

b. Select the antenna azimuth angle;

c. Select a control channel;

d. calculating the interference amount of all control channels of the antenna azimuth angle;

e. Select the next antenna azimuth angle, proceed to step c-d;

f. Completing the calculation of the interference amount of each control channel in each angle, and sorting the minimum control channel interference amount of each angle to obtain the best antenna azimuth and the best control channel list.

This process estimates the total interference amount of the individual control channel frequencies based on the antenna azimuth angle difference and distance between each base station and the target base station in the defined range area. If target base station antenna azimuth angle is set to between ⁰ and 360 degrees to calculate the total amount of interference can be obtained within each control channel frequency of 0 ^to 360 degrees, and therefore can be analyzed and an optimum control channel frequency antenna azimuth.

Please refer to FIG. 4 , which is a flow chart of the optimization of the position of the adjacent cells of the present invention, and the steps thereof include:

a. Select the frequency and number of neighbor cells from the list of neighboring cells;

b. discriminating from the selected neighboring cells one by one the cells with too few crossovers or using the same control channel frequency as the serving cells;

c. Eliminate the neighboring cells of the same frequency and the number of updates, continue with steps a-b; or end the process.

In this process, the number of adjacent cell handovers is too small and the same control channel frequency analysis is used. The base station neighbor cell list is first geo-informed, and then the control channel frequency and the number of handovers of the adjacent cells are determined for individual cells (defining daily Less than 10 times and less than 3 km away from the serving cells are included in the performance analysis, and finally the list of undesired neighbor cells is eliminated, so that the operational efficiency of the adjacent cells can be quickly analyzed.

Please refer to FIG. 5 , which is a flow chart of the optimization analysis of the adjacent cell handover list of the present invention, and the steps thereof include:

a. Select the number of adjacent cell handovers from the list of neighbor cells;

b. From the selected neighboring cells, check each adjacent cell one by one to set the serving cell as its own neighboring cell;

c. If it is found that the above case is not satisfied, update the number of adjacent cell handovers, continue with steps a-b; or end the process.

The method for analyzing the operational efficiency of the mobile network base station provided by the present invention has the following advantages when compared with other conventional technologies:

1. The invention can provide an analysis method for the three operational performances of the complete base station, so as to avoid the end of the traditional control channel planning only, and the operation performance of the base station as a whole can be more protected, and the base can be greatly reduced. The planning speed of the station to provide better communication quality for mobile phone users.

2. The invention can combine the configuration and traffic data according to the operating principle of the actual base station to provide a correct and rapid analysis method to evaluate the overall operational efficiency of the base station, and the economic benefit is very obvious.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

To sum up, this case is not only innovative in terms of technical thinking, but also able to enhance the above-mentioned multiple functions compared with conventional articles. It should be submitted in accordance with the law in accordance with the statutory invention patents that fully meet the novelty and progressiveness, and you are requested to approve this article. Invention patent application, in order to invent invention, to the sense of virtue.

101. . . Base station configuration database

102. . . Base station traffic database

103. . . Base station geographic database

201. . . Control channel frequency and antenna azimuth analysis process

202. . . Neighbor cell location setting performance analysis process

203. . . Neighbor cell handover setting performance analysis process

Figure 1 is a schematic diagram showing the source of the required database of the present invention;

2 is a flow chart of analyzing the operational efficiency of the base station of the present invention;

Figure 3 is a flow chart of analyzing the azimuth angle and control channel frequency of the base station antenna of the present invention;

Figure 4 is a flow chart of the optimization of the position of the adjacent cells of the present invention;

Figure 5 is a flow chart of the optimization of adjacent cell delivery in the present invention.

103. . . Base station geographic database

201. . . Control channel frequency and antenna azimuth analysis process

202. . . Neighbor cell location setting performance analysis process

203. . . Neighbor cell handover setting performance analysis process

Claims (5)

A method for analyzing the operational efficiency of a mobile network base station, the steps comprising: (A) analyzing whether a control channel frequency setting of a base station in a certain area generates intra-system interference through a base station geographic database; (B) generating an intra-system interference Interference, the base station control channel frequency optimization process; otherwise, it is analyzed whether the adjacent cell position set by each cell of the base station is reasonable and whether the same control channel frequency is used and the service cell is used; (C) if the base station cells If the position of the adjacent cells is set to be unreasonable or the same control channel frequency is used, the adjacent cell position optimization process is performed; otherwise, whether the handover setting of each cell of the base station and its neighboring cells is paired; (D) If the delivery of each cell of the base station and its neighboring cells is unpaired, the adjacent cell delivery optimization process is performed; (E) the base station operational efficiency analysis process is ended. For example, in the method for analyzing the operational efficiency of the mobile network base station described in claim 1, wherein the steps of controlling the channel frequency optimization process include: (A) determining the distance of a certain area, and ending the process if the defined range is exceeded, Otherwise proceed to the next step, which defines the range of 10 km in the suburbs, 5 km in the sub-region and 3 km in the metropolitan area; (B) select the control channel; (C) calculate the amount of interference generated by the control channel; (D) select One control channel, step c; (E) complete the interference amount calculation of each control channel, and rank the minimum control channel interference amount Order to get a list of the best control channels. For example, the method for analyzing the operational efficiency of the mobile network base station described in claim 1 of the patent scope, wherein the step of ending the operation performance analysis process of the base station is to use the control channel frequency with the lowest interference amount as the best control channel list. The method for analyzing the operational efficiency of a mobile network base station according to claim 1, wherein the step of optimizing the neighboring cell location comprises: (A) selecting an adjacent cell frequency and number from the neighbor cell list; (B) Depending on the selected neighboring cells, the cells with too few crossovers or the same control channel frequency as the serving cells are discriminated; (C) update the frequency and number of adjacent cells, continue with steps (A) through (B); or end the procedure. The method for analyzing the operational efficiency of the mobile network base station according to claim 1, wherein the step of the adjacent cell handover optimization process comprises: (A) selecting the number of adjacent cell handovers from the neighbor cell list; B) From the selected neighboring cells, check whether each adjacent cell also sets the serving cell as its own neighboring cell; (C) update the number of adjacent cell turnover, continue with steps (A) to (B); or end Process.