KR20060074277A - System and method for analysis of reapetor call traffic - Google Patents

Abstract

The present invention provides a base station control and management system for collecting performance data from a base station and a base station controller, a repeater management server for managing information of repeaters belonging to each base station, RTD information of the performance data of the base station control and management system and the repeater management. It is composed of a repeater volume analysis server that analyzes the inflow volume by repeaters using the repeater information of the server.It analyzes the inflow volume by repeaters belonging to the base station by using RTD information to enable traffic balance between adjacent base stations and sectors. It can improve network performance and increase frequency capacity.

Repeater, Volume, RTD

Description

Repeater volume analysis system and method {System and Method for analysis of Reapetor Call traffic}             

1 is a block diagram schematically showing the configuration of a repeater volume analysis system according to an embodiment of the present invention.

Figure 2 is a block diagram schematically showing the configuration of the repeater call volume analysis server shown in FIG.

Figure 3 is a flow chart showing a method for analyzing the volume of each repeater according to the present invention.

4 is a flowchart illustrating a repeater determination method according to the present invention.

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

100: base station 110; BSM

120: repeater 130: repeater management server

140: repeater volume analysis server 200: control module

210: interface module 220: database

The present invention relates to a repeater volume analysis system and method for analyzing the inflow volume for each repeater using the Round Rrip Delay (RTD) statistics, which is one of base station performance statistics.

A wireless communication system is composed of a plurality of base stations that provide communication services to mobile stations, and mobile switching stations that connect the plurality of base stations to other networks. Each base station serves one cell area, and a repeater is used to expand the service area of the base station and increase frequency efficiency. The repeater typically amplifies a signal from the base station and transmits the signal from the base station to the mobile station to provide a service to the mobile station located far from the base station, and amplifies the signal from the mobile station to the base station.

In order to optimize a mobile communication network represented by such a method for setting a base station or a repeater for call distribution, a network designer is currently selecting a base station or a repeater based on a long experience in quality measurement data and radio transmission.

Generally, base station coverage analysis, call distribution measurement by sector and channel of a base station should be performed to optimize a mobile communication network. In order to analyze the coverage of the base station, the measurement of the amount of call per sector and handoff traffic, field quality measurement, display and analysis of measurement data are performed. After that, the measured data is analyzed through IDA, and the capacity and efficiency of the base station are analyzed based on the hydration handoff traffic of each sector on the NMS (Network Management System). IDA combines interface data and time / navigation data of GIS in CDMA system to analyze the performance of terminal and base station and optimize network design.NMS collects network status, alarm and traffic data to collect network management parameters and statistics. Calculate the data.

Recently, a technique for analyzing and optimizing coverage and call distribution of a base station using systems such as Radio Access Network Optimizer (RANO) and Cellular Radio PLANing System (CellPLAN) has been introduced and used.

RANO (Radio Access Network Optimizer) is an optimization system that not only detects performance degradation of code division multiple access (CDMA) network, but also finds the cause and suggests a solution. It maintains the best call quality and periodically manages network performance to automatically identify the cause of wireless network degradation and suggest solutions to operators. In addition, CellPLAN is a wireless Internet platform and CDMA wireless network design and analysis system that performs fast and accurate prediction and analysis using a precise geographic information system, thereby optimizing the wireless network through positioning of the entire base station, antenna direction and transmission power / call quality analysis. Provide a solution.

As such, analytical tools and processes such as RANO and CellPLAN should be added to sufficiently analyze base station coverage and call distribution, and it is difficult to infer correlations between measurement devices such as IDA and NMS (Network Management System). There is this.

Of course, RTD which represents time delay between base station and terminal is still used, but it is difficult to accurately grasp the inflow volume of each repeater for traffic distribution, and it is possible to do this by using the method that human infers directly using RTD statistics and repeater information. It was hard to automate.

Accordingly, an object of the present invention is to provide a repeater call analysis system and method for automatically distributing traffic by using repeater calls by analyzing the inflow volume for each repeater belonging to the base station.

Another object of the present invention is to analyze the inflow volume for each repeater using the RTD statistics, one of the base station performance statistics, repeater volume analysis system to realize the performance improvement of the overall CDMA wireless network and capacity increase through traffic balance (balance) And providing a method.

According to an aspect of the present invention to achieve the above object, a base station control and management system for collecting performance data from a base station and base station controller, a repeater management server for managing information of repeaters belonging to each base station, the base station control and management Repeater volume analysis system comprising a repeater volume analysis server for analyzing the inflow volume for each repeater using the RTD information and repeater information of the repeater management server of the performance data of the system is provided.

The repeater call volume analysis server matches the distance information in the RTD information with pre-stored distance repeater information to determine the corresponding repeater, and determines the volume assigned to the determined repeater using the lake information for the distance.

According to another aspect of the present invention, in the repeater volume analysis server analyzes the repeater volume, the repeater information collected by the base station from the repeater management server, receiving and storing RTD information from the base station control and management system and And matching the distance information in the RTD information with pre-stored distance repeater information to determine the corresponding repeater, and analyzing and storing the volume allocated to the determined repeater using the lake information for each distance in the RTD information. Repeater volume analysis method is provided.

Determining the repeater by matching the distance information in the RTD information with pre-stored distance repeater information and determining whether the distance information is greater than or equal to a predetermined reference value, and as a result of the determination, the distance information is greater than or equal to a predetermined reference value. In this case, the distance information is matched with pre-stored distance repeater information, and the distance information and the indicating repeater are determined. If the distance information is not more than a predetermined reference value, the RTD is determined to be a signal directly received by a base station. .

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

1 is a block diagram schematically showing the configuration of the repeater volume analysis system according to an embodiment of the present invention, Figure 2 is a block diagram schematically showing the configuration of the repeater volume analysis server shown in FIG.

Referring to FIG. 1, a repeater call analysis system includes a base station 100, a base station 100, and a base station controller that allow a plurality of mobile communication terminals included in a predetermined service area to use voice and data services through a mobile communication network. A base station control and management system (BSM) 110 for collecting performance data and base station management information from a base station; a repeater management server 1230 for managing information of the repeater 120 belonging to the base station 100; Repeater volume analysis server 140 for analyzing the inflow volume for each repeater using the performance data of the control and management system 110 and the repeater information of the repeater management server 130.

 The repeater management server 130 manages repeater information such as the number / type / output power of repeaters belonging to the service area of each base station, the distance between the base station 100 and the relay period.

The repeater volume analysis server 140 analyzes the inflow volume for each repeater using RTD information among the performance data of the base station control and management system 110. That is, the repeater call analysis server 140 determines the repeater using the RTD information, and determines the call volume for each repeater using the repeater information transmitted from the repeater management server 130.

The repeater call volume analysis server 140 will be described in detail with reference to FIG. 2.

Referring to FIG. 2, the repeater call volume analysis server 140 includes a control module 200, an interface module 210, and a database 220.

The interface module 210 receives RTD information from the base station control and management system 110 and repeater information from the repeater management server 130 and transmits it to the control module 200. The RTD information includes distance information obtained by converting an RTD into distances and lake information for each distance.

The control module 200 analyzes the call volume for each repeater using the RTD information and the repeater information transmitted from the interface module 210. That is, the control module 200 determines the repeater using the distance information of the RTD information. Since the control module 200 stores repeater information allocated according to a distance, the control module 200 may determine the repeater using the distance information.

The repeater is determined as described above, and the control module 200 determines the call volume allocated to the determined repeater using the lake information for each distance of the RTD information.

The database 220 includes an RTD information database 222 and a repeater specific volume database 224.

The RTD information database 222 stores RTD information transmitted through the interface module 210.

The repeater specific volume database 2240 stores the repeater information transmitted through the interface module 210 and the repeater specific volume information analyzed by the control module 200.

 Therefore, the operator may enable the distribution of the repeater call, such as traffic distribution, using the volume information for each repeater stored in the volume database 220 for each repeater.

Hereinafter, the operation of the repeater volume analysis system configured as described above will be described with reference to FIG. 3.

3 is a flowchart illustrating a method for analyzing a volume of each repeater according to the present invention, and FIG. 4 is a flowchart illustrating a repeater determination method according to the present invention.

Referring to FIG. 3, the repeater call analysis server collects repeater information covered by the base station from the repeater management server (S300), and receives RTD information from the base station control system (S302). The RTD information includes distance information converted from the RTD into distances and lake information for each distance.

After performing step 302, the repeater volume analysis server determines the corresponding repeater using the RTD information (S304). That is, the repeater call volume analysis server determines the repeater using distance information of the RTD information.

The RTD received through the repeater is delayed from the signal received directly to the base station due to system delay, line delay, and repeater delay. Therefore, the repeater call volume analysis server may determine whether the RTD is the RTD of the base station or the repeater RTD using the RTD.

A method of determining the repeater by the repeater call analysis server will be described with reference to FIG. 4.

Referring to FIG. 4, the repeater call volume analysis server compares distance information with a predetermined reference value and determines whether there is more than that (S400). The predetermined reference value is an RTD directly received by the base station, and may be, for example, 600 m.

If it is determined in step 400 that the distance information is not more than a predetermined reference value, the repeater call volume analysis server determines that the call is a signal directly received by the base station (S402).

If the distance information is greater than or equal to a predetermined reference value, the repeater call analysis server determines the repeater corresponding to the distance information by matching the distance information with pre-stored distance-specific repeater information (S404). (S406).

That is, repeater information allocated for each distance is previously stored in the repeater call volume analysis server. For example, if the distance is 700m, a repeater is allocated for each distance such as a first repeater and a second repeater if the distance is 900m.

Accordingly, the repeater call volume analysis server determines the repeater indicated by the distance information by comparing the distance information with previously stored repeater information for each distance.

Referring to FIG. 3 again, when the corresponding repeater is determined using the RTD information as described above, the repeater volume analysis server analyzes the quantity of the volume allocated to the determined repeater using the lake information for each distance in the RTD information (S306). ), And stores the determined volume data for each repeater (S308).

As described above, the repeater call volume analysis server may automatically determine the inflow volume for each repeater belonging to the base station, and use the determined call volume for each repeater to enable repeater call distribution such as traffic distribution.

 The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, according to the present invention, by analyzing the inflow volume for each repeater belonging to the base station by using the RTD information, the repeater call volume to enable the traffic balance between neighboring base stations and sectors to improve the wireless network performance and increase the frequency capacity Analytical systems and methods can be provided.

Claims (6)

A base station control and management system for collecting performance data from the base station and the base station controller; A repeater management server that manages information of repeaters belonging to each base station; Repeater volume analysis server for analyzing the inflow volume for each repeater using the RTD information of the performance data of the base station control and management system and the repeater information of the repeater management server Repeater volume analysis system comprising a. The method of claim 1, The RTD information includes a distance information, repeater quantity analysis system, characterized in that it comprises a lake information for each distance. The method according to claim 1 or 3, The repeater volume analysis server determines the repeater by matching the distance information in the RTD information with the stored repeater information for each distance, and determines the quantity assigned to the determined repeater using the lake information for each distance. Repeater volume analysis system. In the repeater volume analysis server how to analyze the repeater volume, Collecting repeater information covered by the base station from the repeater management server, and receiving and storing RTD information from the base station control and management system; Determining the repeater by matching the distance information in the RTD information with pre-stored distance repeater information; Analyzing and storing the quantity allocated to the determined repeater using the lake information by distance in the RTD information Repeater volume analysis method comprising a. The method of claim 4, wherein Determining the repeater by matching the distance information in the RTD information with the pre-stored distance repeater information Comparing the distance information with a predetermined reference value and determining whether the distance information is higher than the predetermined reference value; If the distance information is equal to or greater than a predetermined reference value, the distance information is matched with repeater information for each distance stored in advance, and the distance information and the indicating repeater are determined. If the distance information is not equal to or greater than a predetermined reference value, Repeater quantity analysis method comprising the step of determining that the RTD is a signal received directly to the base station. The method of claim 4, wherein The repeater information includes repeater call quantity analysis method, characterized in that it includes the number / type / output power of the repeater belonging to the service area of each base station, the distance between the base station and the repeater period.

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