KR20140018105A - Wireless communication system, management device and base station management method - Google Patents

Abstract

A wireless communication system according to an embodiment of the present invention comprises: a management device (3) including a wireless parameter list (32) for storing an ID and wireless parameters of a base station (2) having area information indicating the area in which the base station (2) is installed, a wireless parameter allocating part (33) for allocating the wireless parameters according to a distance between the base stations based on the area information, and a network communication part (31) for transmitting the allocated wireless parameters to the base station (2); and the base station (2) including a network communication part (21) for receiving the wireless parameters from the management device (3) and a wireless parameter setting part (22) for setting the wireless parameters. [Reference numerals] (1) Terminal; (21,31) Network communication part; (22) Wireless parameter setting part; (23) Wireless part; (32) Wireless parameter list; (33) Wireless parameter allocation part; (AA) Base station; (BB) Management device; (CC) Maintenance network; (DD) Communication network

Description

WIRELESS COMMUNICATION SYSTEM, MANAGEMENT DEVICE AND BASE STATION MANAGEMENT METHOD}

An embodiment of the present invention relates to a wireless communication system, a management apparatus, and a base station management method for centrally managing a plurality of base stations.

This application is based on Japanese Patent Application No. 2012-172770 (filed date: August 3, 2012), which receives preferential benefit from this application. This application includes the contents of this application by reference to this application.

Background Art Conventionally, in wireless communication systems, station design plays an important role in cover area and interference suppression. However, in the station design, since the transmission power value and the radio frequency of the base station need to be determined after considering the power value transmitted by the base station around the installation site manually in advance, it is a great effort for the installer.

In addition, a method of receiving a report on the received power value or the interference information from the terminal receiving the radio wave from the newly installed base station and using this information can be considered a method of determining the radio frequency or the transmit power value. However, in this method, it is assumed that the base station is already transmitting some radio waves, and the radio waves to be transmitted have no effect on other base stations, which may adversely affect existing services.

Further, Japanese Patent Laid-Open No. 2001-169338 discloses that the base station measures the received electric field strength for each frequency while switching the radio frequencies, detects the presence or absence of interference waves in the received radio waves of each radio frequency, and optimizes the radio communication environment. A base station is proposed.

However, in this method, in the case of a frequency division duplex (FDD) system, since the frequency band transmitted by the base station and the frequency band transmitted by the terminal are different, a radio frequency band newly received is required for the base station. For this reason, it is not valid for a base station in which such a function is not implemented.

Japanese Patent Laid-Open No. 2001-169338

The problem to be solved by the present invention is to provide a wireless communication system, a management apparatus, and a base station management method that can reduce the effort and cost in base station installation.

A wireless communication system according to the present embodiment is a wireless communication system including a plurality of base stations provided in a management area having a plurality of areas and a management device for managing the base station, wherein the management device indicates an area in which the base station is provided. A radio parameter assignment unit for allocating radio parameters according to the distance between the base station based on the identification information of the base station including the information and the radio parameters of the base station, the base station based on the area information, and the assigned radio parameters to the base station. The base station apparatus is provided with the 1st communication part to transmit, The base station apparatus is equipped with the 2nd communication part which receives the radio parameter transmitted from a management apparatus, and the radio parameter setting part which sets a radio parameter.

According to the radio communication system having the above-described configuration, the labor and the cost of installing the base station can be reduced.

1 is a diagram illustrating a configuration example of a wireless communication system according to the present embodiment.
2 is a block diagram showing a functional configuration of each device of the wireless communication system of FIG.
3 is a diagram illustrating an example of a wireless parameter list.
4 is a diagram illustrating a problem when a base station is newly established.
Fig. 5 is a diagram showing an example of mapping a base station ID and a location where a base station is installed in Embodiment 1;
6 is a diagram showing an example other than mapping of a base station ID and a location where a base station is installed.
7 is a sequence diagram showing an update process of a radio parameter list according to the first embodiment.
Fig. 8 is a diagram showing an example of a radio parameter list before base station establishment.
9 is a diagram showing an example of a radio parameter list immediately after the base station is established.
10 is a flowchart showing a determination procedure of a radio frequency band.
11 is a diagram showing an example of a radio parameter list after radio parameter adjustment.
Fig. 12 is a diagram showing a cover area of each base station after radio parameter adjustment.
Fig. 13 is a diagram showing an example of mapping a base station ID and a location where a base station is installed in Embodiment 2;
FIG. 14 is a diagram showing an example of a radio parameter list in Example 2. FIG.
Fig. 15 is a diagram showing an example of mapping a base station ID and a location where a base station is installed in the third embodiment;

EMBODIMENT OF THE INVENTION Hereinafter, the wireless communication system and base station management method which concern on this embodiment are demonstrated, referring drawings.

1 shows a configuration example of a wireless communication system according to the present embodiment. The system includes terminals 1-1 to 1-m (hereinafter collectively referred to as terminal 1), base stations 2-1 to 2-n (hereinafter collectively referred to as base station 2), and management apparatus. (3) It has a maintenance network and a communication network. The base station 2 performs wireless communication with the terminal 1 existing in the cover area. The management device 3 is connected to the plurality of base stations 2 by a wired or wireless line. In addition, the management apparatus 3 is connected with the maintenance network and the communication network, and is connected with the management server 4 via the maintenance network. The maintenance network and the communication network only need to be able to perform arbitrary communication between the devices, regardless of the type of the network such as an IP network or an ISDN network. In this system, the management information of the base station 2 can be optimized locally by centrally managing the base station 2 underneath by the management apparatus 3.

FIG. 2 is a block diagram showing the functional configuration of each device of the wireless communication system of FIG. The base station 2 has a network communication unit 21, a radio parameter setting unit 22, and a radio unit 23. The management device 3 has a network communication unit 31, a radio parameter list 32, and a radio parameter assignment unit 33. In addition, it is assumed that the original function of the base station has a known function. The network communication unit 21 is connected to the network communication unit 31 of the management device 3.

The management apparatus 3 has a radio parameter list 32 which stores radio parameters for each base station 2 connected to it. Although the details of the radio parameter list 32 will be described later, radio parameters (for example, radio frequency band and transmission power value) of radio waves transmitted by each base station are included in this list. In addition, in the figure, the radio frequency band is simply described as a radio frequency. The radio parameter assignment unit 33 refers to radio parameters included in this radio parameter list 32 to determine (assign) radio frequency bands and transmission power values of radio waves transmitted from each base station, and the network communication unit 31. The base station 2 is notified of the radio frequency band and the transmission power value through the radio station. The radio parameter list 32 is then updated with the radio parameters determined.

The base station 2 receives a radio parameter including a radio frequency band and a transmission power value notified from the management apparatus 3 via the network communication unit 21, and wirelessly receives the received radio parameter by the radio parameter setting unit 22. It sets in the part 2 and starts transmission of a radio wave (radio signal).

3 is an example of a wireless parameter list 32. As shown in FIG. 3, the radio parameter list 32 stores radio parameters including a base station ID and radio frequency band and a transmission power value. In the radio parameter list 32, the base station ID and radio parameters are associated. In addition, the kind of radio parameter maintained as a list can be changed arbitrarily according to a system.

Next, the operation of the wireless communication system configured as described above will be described according to each embodiment.

(Example 1)

First, with reference to FIG. 4, the problem at the time of establishing a base station is demonstrated. In FIG. 4, three base stations of the base station A, the base station B, and the base station C are already installed in the management area of the management device 3, and one base station D is newly installed. In this system, three radio frequency bands α, β, and γ can be used, base station A uses radio frequency band α, base station B uses radio frequency band β, and base station C uses radio frequency band γ.

When there is a radio frequency band that is not in use, if the base station D simply uses a radio frequency band that is not in use, since the interference does not occur, the base station D can operate without affecting the existing service. However, in the case of Fig. 4, since there is no unused radio frequency band, it is necessary to calculate the radio frequency band and transmission power values which do not affect other base stations. In general, this work is performed by human hands, and labor for this work has become a problem.

5 shows an example of mapping a base station ID and a location where a base station is installed in the present system.

In FIG. 5, the building managed by the management apparatus 3 is divided into three in the north-south direction, five in the east-west direction, and 15 in total to form a plurality of areas. Each area is given a unique area ID indicating the location of the area. In this example, the first two letters of the base station ID indicate area information indicating the area in which the base station is installed, the first letter from the first indicates the position in the east-west direction, and the second letter from the first indicates the position in the north-south direction. For example, the base station A belongs to the northernmost and westernmost regions (area "A1") of the area managed by the management apparatus 3. Therefore, the base station ID includes area information indicating the area where the base station is installed in the management area. The correspondence relationship between the base station ID and the area is managed by the management apparatus 3.

In addition, about next ID of 4 digits other than this, arbitrary characters may be sufficient, it may be used as necessary information according to a system, and the number of digits can also be changed.

For example, since the base station A belongs to the area "A1", the base station ID starts from A1, and since the base station A is the first base station of the area, the base station ID is assigned 0001 after A1. Therefore, the base station ID of the base station A is "A10001". The installer sets this ID to the base station manually at the time of base station installation.

In the present embodiment, the base station ID is used as identification information of the base station, which includes area information indicating the area where the base station is installed.

Moreover, the management apparatus 3 calculates the weight of the distance of the adjacent area based on the size of a building and the number of divided areas. For example, if the size of the building of FIG. 5 is 30 m in the north-south direction and 50 m in the east-west direction, and the building is divided into three in the north-south direction and five in the east-west direction, the weights of the distances of the adjacent areas are each one. . In this case, the weight of the distance between adjacent areas is east-west: north-south = 1: 1. That is, movement of one area in the north-south direction and movement of one area in the east-west direction indicate that the same attenuation of the received power is given.

On the other hand, in FIG. 6, the building of the same size as FIG. 5 is divided into 3 parts in the north-south direction, and 3 parts in the east-west direction. The weight of the distance of adjacent areas is east-west: north-south = 1.66: 1. In other words, the movement of one area in the north-south direction imparts attenuation of the received power by the weight 1, whereas the movement of one area in the east-west direction imparts attenuation of the reception power of the weight 1.66.

According to the system, the number of area divisions can be appropriately determined, and when the area is finely divided, the position where the base station is installed can be represented more accurately.

The base station ID is an ID determined uniquely by the system, and is a kind of parameter that can be obtained from the base station using a protocol for managing a network such as Simple Network Management Protocol (SNMP). It is not necessary to mount the new structure in the base station 2 in order to.

From the above structure, the management device 3 can specify the approximate location where the base station is installed by referring to the base station ID. The management device 3 acquires the base station ID after the base station 2 is activated, adds the acquired base station ID to the radio parameter list 32, and resets the radio frequency band and the transmission power value by the radio parameter assignment unit 33. The assignment is performed.

7 is a sequence diagram showing an update process of a radio parameter list. The management apparatus 3 receives the installation completion notice (base station ID = A10001) of the base station A, adds the base station ID A10001 to the radio parameter list 32, and transmits the radio frequency band and the transmission by the radio parameter assignment unit 33. The power value is reviewed. The base station A receives the notification of the radio parameters (radio frequency band α, transmission power value 40) from the management device 3, sets the radio frequency band α and the transmission power value 40 to the radio unit 23, and starts operation.

Similarly, the management device 3 receives the installation completion notice (base station ID = B30001) of the base station B, adds the base station ID B30001 to the wireless parameter list 32, and then uses the wireless parameter assignment unit 33 to set the radio frequency band. And the transmission power value is reviewed. The base station B receives the notification of the radio parameters (radio frequency band β, transmission power value 40) from the management device 3, sets the radio frequency band β and the transmission power value 40 to the radio unit 23, and starts operation. In addition, the management device 3 receives the installation completion notification (base station ID = D20001) of the base station C, adds the base station ID D20001 to the radio parameter list 32, and then uses the radio parameter assignment unit 33 to set the radio frequency band. And the transmission power value is reviewed. The base station C receives a notification of radio parameters (radio frequency band γ, transmission power value 50) from the management device 3, sets the radio frequency band γ and transmission power value 50 to the radio unit 23, and starts operation.

In this operating state, the base station D is newly established, and the management device 3 receives the completion notice of installation of the base station D (base station ID = E30001). The management apparatus 3 adds the base station ID E30001 to the radio parameter list 32, and reviews the radio frequency band and the transmission power value by the radio parameter assignment unit 33 as follows.

FIG. 8 is a radio parameter list 32 held by the management device 3 before the base station D in FIG. 4 is newly established. The area division is 5x3 shown in FIG. At this stage, there are three base stations, each of which uses a different radio frequency band. Thus, at this stage, the service can be provided without problems without interfering with each other.

9 shows the radio parameter list 32 immediately after the establishment of the base station D. FIG. From this radio parameter list 32, the management device 3 can know that the new base station D is located in the area of E3.

The method for determining the radio frequency band and transmission power value of this newly established base station D will be described below. First, the radio frequency band is determined.

10 is a flowchart illustrating a method of determining a radio frequency band when a base station D is newly located.

When there is a radio frequency band not set in any base station in the target area among the available radio frequency bands (step S1: YES), the radio parameter assignment unit 33 selects a radio frequency band from the unset radio frequency band. It selects arbitrarily (step S2). That is, when there is a radio frequency band not assigned to the base station (step S1: YES), the radio frequency band is arbitrarily selected from the unassigned radio frequency bands (step S2). The selection method may determine the radio frequency band in a predetermined order, or may randomly determine the radio frequency band.

On the other hand, if all kinds of available radio frequency bands are allocated to at least one of the base stations in the area, and there is no unassigned radio frequency band (Step S1: No), the radio frequency band allocated to the next base station is somewhere. The interference problem occurs because it is necessarily the same as the radio frequency band with the base station. In order to suppress this interference problem, the radio parameter assignment unit 33 starts the search of the radio frequency band from the base station nearest to the position where the base station is installed and selects the radio frequency band found last (step S3). When measuring the perspective of the distance, the area information included in the base station ID is used, and the weight of the distance between the areas held by the management apparatus 3 is used.

For example, consider a case where the radio frequency band of the base station D in FIG. 5 is determined. As a premise, it is assumed that the radio frequency bands alpha, beta and gamma can be used in this system.

When the base station D is installed and the radio frequency band is determined, the radio frequency bands α, β, and γ are already used by other base stations. For this reason, the radio frequency band of "E30001" should be selected from alpha, beta, and gamma. Next, the distance from the other base station is calculated from "E30001", and radio frequency band investigation is started from the nearest base station. In this example, the distances from the base station A, the base station B, and the base station C are as follows.

From the above results, the nearest base station is base station C, and the radio frequency band used by this base station is γ. When the same radio frequency band as the radio frequency band of the nearest base station is used, the influence of radio wave interference is increased, so the radio frequency band γ is excluded from the choice. The next closest base station is base station B, and the radio frequency band used by this base station is β. In the same way of thinking as above, the radio frequency band β is also excluded from the choice. Of the radio frequency bands available at this point in time, the remaining radio frequency band, that is, the last radio frequency band found is α, and thus α is selected as the radio frequency band of the base station D.

In the first embodiment, although the radio frequency band determination procedure in Fig. 10 is used, important factors differ depending on the system. The above is only an example, and the logic for determining the radio frequency band is arbitrary.

Then, considering the interference with the base station A using the same radio frequency band, the transmission power values not interfering with each other are determined. The weight of the distance between the areas held by the management apparatus 3 is also used to determine the transmission power value. 11 shows a radio parameter list after the radio frequency band and the transmission power value have been determined. In the case of FIG. 11, the transmission power value of the base station A is reduced. In addition, since there is a possibility that a dead zone may occur along with the decrease of the transmission power value of the base station A, the cover area is secured by increasing the transmission power of the radio frequency band β and the radio frequency band γ.

That is, as described above, the radio parameter assignment unit 33 allocates radio frequency bands and transmission power values, which are radio parameters, to the base station according to the distance between the base stations based on the base station ID (identification information) in the radio parameter list.

As shown in FIG. 7, the management apparatus 3 notifies each base station of the determined radio parameter. As a result, the base station A receives the notification of the radio parameters (radio frequency band α, transmission power value 30) from the management device 3, sets the radio frequency band α and the transmission power value 30 to the radio unit, and starts operation. The base station B receives the notification of the radio parameters (radio frequency β, transmission power value 50) from the management device 3, sets the radio frequency band β and the transmission power value 50 to the radio part, and starts operation. The base station C receives a notification of radio parameters (radio frequency band γ, transmission power value 60) from the management device 3, sets the radio frequency γ and transmission power value 60 to the radio unit, and starts operation. The base station D receives the notification of the radio parameters (radio frequency band α, transmission power value 30) from the management device 3, sets the radio frequency band α and the transmission power value 30 to the radio unit, and starts operation.

12 shows the state of the cover area of each base station after radio parameter adjustment. By providing the management device 3 in this way, the radio frequency band and the transmission power value can be automatically determined in conjunction with other base stations, thereby reducing the effort and cost associated with manual operation.

Therefore, according to the wireless communication system, the management apparatus, and the base station management method according to the present embodiment, it is possible to reduce the effort and the cost in installing the base station.

In addition, in Example 1, although the base station D was newly established, when the base station which has already been installed is moved, even when the base station is removed by failure etc., the radio parameter list is similarly updated and You can adjust the radio parameters. In the case of base station movement, the base station ID is changed in accordance with the installation position of the moving destination, in the case of removal, the base station ID is deleted, and then the radio frequency band and the transmission power value are reset.

(Example 2)

In Example 2, the case where this embodiment is extended to multiple systems (three-dimensional) is demonstrated. Fig. 13 shows an example of mapping a base station ID and a location where a base station is installed to a three-dimensional space. In Example 1, the case of planar space is shown, but in Example 2, it is effective for a three-dimensional space, especially a base station installed indoors. Since this is an indoor installation, it is difficult to acquire positional information by GPS (Global Positioning System). For example, even if it can be acquired, 1F, 2F, 3F... This is because when the base stations are installed at the same location, it is shown that there are several base stations in the same location, and thus the acquired location information cannot be effectively utilized.

In Fig. 13, a two-story building is shown, and the first and second floors are the same size and have the same shape. In this example of FIG. 13, the first three digits of the base station ID indicate the position, the first first digit indicates the number of floors, the second digit information in the east-west direction, and the third digit in the north-south direction as the position information includes the number of floors. Information is shown. For example, since the base station A is located in the area of "B3" on the first floor, the base station A is set to "1B3001". In addition, although the last 3 digits are arbitrary, since it is the first base station of the said area, "001" is given.

In the case where the weight of the distance between the areas is taken into account only for each floor, it is the same as in FIG. 5, but FIG. 13 gives the weight of the distance between the first and second floors. The weight of the distance in the case of crossing the floor is not simply represented by the distance, but the weight of the distance is given according to the material supporting the floor. For example, in the case of lumber and the like that are easy to permeate, the weight of the distance is reduced, and in the case of thick concrete, the weight of the distance is increased. Increasing the weight of the distance means, for example, that the base stations are located in the same place on the first floor and the second floor, and thus do not affect each other. In the example of FIG. 13, the weight of the distance between floors was made into seven. 14 shows a radio parameter list indicating the radio frequency band and the transmission power value in this case. In this system, radio frequency bands α, β, and γ can be used.

Next, the case where the base station E is newly established in FIG. 13 is considered. Based on the above-described determination procedure of the radio frequency band, the weight of the distance between the base station E and the other base stations is calculated as follows.

From the above results, the nearest base station is base station B, and the radio frequency band used by this base station is β. The next closest base station is A, and the radio frequency band used by this base station is α. From this result, the last radio frequency band found is γ. Since it can be seen that the radio frequency band which does not interfere the most is γ, γ is determined as the radio frequency band of the base station E. It can be seen from the radio parameter list in FIG. 14 that the base stations other than using the radio frequency band γ are the base station C. FIG.

In addition, with respect to the transmission power value, it is assumed that when the transmission power value is 40, when the distance weight is greater than or equal to 30, it can be ensured that they do not interfere with each other. Since the weight of the distance from the base station C, which may be the only interference source, is √62, if the transmission power values are 40 or less, the interference does not occur. In practice, the transmission power is further narrowed in consideration of other cover areas and the like.

As described above, the radio parameter assignment unit 33 assigns the radio frequency band and the transmission power value, which are radio parameters, to the base station according to the distance between the base stations based on the base station ID (identification information) in the radio parameter list.

Therefore, according to the wireless communication system, the management apparatus, and the base station management method according to the present embodiment, it is possible to reduce the effort and the cost in installing the base station.

(Example 3)

In Embodiment 2, the distance between the base station on the first floor and the base station on the second floor is considered to be a weight of the distance in consideration of the transmittance of radio waves, not the actual distance. This is effective not only in three dimensions but also in two dimensions. For example, if there is a room surrounded by concrete with only one corner, radio waves are difficult to reach for that room. 5 and 6 show an embodiment in which there is no obstacle in the two-dimensional plane and it is assumed that it is a free space. However, for an area in which radio waves are difficult to reach, the radio wave intensity actually received by increasing the weight of the distance to the location. Close to.

FIG. 15 shows an example of mapping a base station ID and a location where a base station is installed in the third embodiment. In FIG. 15, when calculating the weight of the distance including the area of "E3", the weight of the distance of concrete is shown to be 4 instead of 1. That is, it shows that radio waves are hard to reach in the area of "E3". By doing so, it becomes possible to set an appropriate radio parameter according to the actual radio wave environment.

Therefore, according to the wireless communication system, the management apparatus, and the base station management method according to the present embodiment, it is possible to reduce the effort and the cost in installing the base station.

(Modified example)

In the above embodiment, the base station ID includes location information (area information) of the base station. However, the identification information of the base station other than the base station ID may include the location information, and the identification information of the base station including the location information can be appropriately changed depending on the system. For example, as in " 10.168.1 (layer). 1 (area) ", the IP address set in the base station may include the position information of the base station. In this case, the IP address including the positional information is stored in the radio parameter list together with the base station ID. In this modification, the IP address is used as identification information of the base station including the area information indicating the area where the base station is installed. In addition, the base station ID does not have to include positional information.

As described above, in the present embodiment and the modified example, information that can be used as a location is assigned to the base station ID required to be set to the base station, and the base station ID is collected by the management apparatus for centrally managing the base station. By grasping the location information, it is possible to automatically determine the radio frequency band and the transmission power value. Therefore, according to the wireless communication system, the management apparatus, and the base station management method of at least one embodiment or modification, the effort and cost in base station installation can be reduced.

Conventionally, when the base station is installed, it has been necessary to manually determine the radio frequency band and the transmission power value after considering the surrounding radio situation. However, in the present embodiment and the modified example, consideration is given to the radio wave condition that other base stations automatically transmit. The transmission power value can be determined. This can significantly reduce the labor of the installer without adversely affecting existing services. In addition, in this embodiment and a modification, it is not necessary to mount a reception frequency band newly with respect to a base station, and it is effective also for a base station in which such a function is not implemented.

In addition, although some embodiment was described, these embodiment is shown as an example and does not intend limiting the range of invention. These new embodiments can be implemented in various other forms, and various omissions, substitutions, and alterations can be made without departing from the gist of the invention. These embodiments and their modifications fall within the scope and spirit of the invention and are included in the scope of the invention as defined in the claims and their equivalents.

Claims (11)

A wireless communication system comprising a plurality of base stations provided in a management area having a plurality of areas formed by division, and a management device for managing the base stations,
The management apparatus includes:
A radio parameter list for storing identification information of the base station including area information indicating an area in which the base station is installed and radio parameters of the base station;
A radio parameter assignment unit for allocating the radio parameters according to a distance between base stations based on the area information;
A first communication unit for transmitting the allocated radio parameter to the base station
Equipped with
The base station comprises:
A second communication unit which receives the radio parameter transmitted from the management device;
A wireless parameter setting unit for setting the wireless parameter to a wireless unit
And a wireless communication system. The method of claim 1,
The distance between the base stations is given a weight based on the size of the management area and the number of divided areas. The method of claim 1,
The radio parameter comprises a radio frequency band and a transmission power value. The method of claim 1,
The identification information of the base station is a base station ID including area information indicating an area in which the base station is installed. The method of claim 1,
The identification information of the base station is an IP address including area information indicating an area in which the base station is installed. A management apparatus for managing a plurality of base stations installed in a management area having a plurality of areas formed by division,
For each base station, a radio parameter list for storing identification information of the base station including area information indicating an area in which the base station is installed and radio parameters of the base station;
A radio parameter assignment unit for allocating the radio parameters according to a distance between base stations based on the area information;
Communication unit for transmitting the assigned radio parameter to the base station
A management device comprising a. The method according to claim 6,
The distance between the base stations is weighted based on the size of the management area and the number of divided areas. 8. The method according to claim 6 or 7,
The radio parameter comprises a radio frequency band and a transmission power value. A base station management method used in a wireless communication system having a plurality of base stations provided in a management area having a plurality of areas formed by division, and a management device for managing the base stations,
The management apparatus includes:
Storing, for each base station, identification information of the base station including area information indicating an area in which the base station is installed and radio parameters of the base station in a radio parameter list;
Allocating the radio parameter according to a distance between base stations based on the area information;
Transmitting the assigned radio parameter to the base station
Lt; / RTI >
The base station comprises:
Receiving a radio parameter transmitted from the management device;
Setting the wireless parameter
Base station management method characterized in that it has a. 10. The method of claim 9,
The distance between the base stations is weighted based on the size of the management area and the number of divided areas. 10. The method of claim 9,
The radio parameter includes a radio frequency band and a transmission power value.

Images