JP2021184539A - Base station adjusting device, base station, base station adjusting system, and base station adjusting method - Google Patents

Abstract

To appropriately adjust setting information of a mobile communication base station by accurately and easily grasping a change in a cell state of the base station.SOLUTION: A base station adjusting device 50 adjusts setting information of a mobile communication base station 20 which performs radio communication via a plurality of terminal devices 40 and an antenna 250. The base station adjusting device 50 comprises an acquisition unit which acquires image data obtained by capturing a target area including a part or the whole of a cell 100 of the base station 20, and a processing unit which executes adjustment processing for adjusting the setting information of the base station 20 using the image data acquired by the acquisition unit.SELECTED DRAWING: Figure 1

Description

The present invention relates to a mobile communication base station, a base station adjusting device for adjusting base station setting information, a base station adjusting system, and a base station adjusting method.

Conventionally, key performance indicators (KPI: Key Performance Indicator) are periodically calculated based on the measurement report (MR: Measurement Report) received from the terminal device, and the parameters (setting information) of the base station are adjusted based on the KPI. Communication systems are known.

Patent Document 1 includes a 3GPPSON (3GPP Self Organizing Network) server that adjusts the parameters of a plurality of base stations based on KPI, and tunes (adjusts processing) such as setting, optimizing, and repairing the parameters of each base station. The communication system to be performed is disclosed.

Japanese Unexamined Patent Publication No. 2013-255163

In the conventional communication system, it is not possible to accurately and easily grasp the change in the environment and the state of the number of connected users in the cell of the base station, and to appropriately adjust the radio setting information of the base station.

The base station adjusting device according to one aspect of the present invention is a base station adjusting device that adjusts setting information of a mobile communication base station that performs wireless communication with a plurality of terminal devices via an antenna, and is a cell of the base station. An adjustment process for adjusting the setting information of the base station by using the acquisition unit that acquires the image data acquired by the imaging unit and the image data acquired by the acquisition unit is performed on the target area including a part or all of the above. It has a processing unit to execute.
In the base station adjusting device, the setting information may be information for setting at least one of the direction and the shape of the beam of the antenna.
Further, in the base station adjusting device, the processing unit may obtain information on the number of people in the cell, information on the number of people outside the cell, attribute information on people in the target area, and regional information on the cell, which are obtained from the image data. , The adjustment process may be executed using at least one of the environment information of the cell, the distribution information of people in the target area, and the movement information of people in the target area.
Further, in the base station adjusting device, the processing unit may execute the adjusting process using the main performance index generated by the base station based on the measurement reports received from the plurality of terminal devices. ..
Further, in the base station adjusting device, the adjusting process may include a process of adjusting the setting information of the base station based on the prediction result of people entering and exiting the cell predicted using the image data. ..
Further, in the base station adjusting device, the adjusting process may include a process of adjusting the setting information of the base station based on the weather of the cell estimated by using the image data.
Further, in the base station adjusting device, the adjusting process may include a process of adjusting the setting information of the base station based on the content of the execution event in the cell estimated by using the image data.
Further, in the base station adjusting device, the adjusting process obtains the setting information of the base station regarding the cell switching of the terminal device based on the moving speed of the terminal device in the cell estimated by using the image data. It may include a process of adjusting.
Further, in the base station adjusting device, the adjusting process is a process of adjusting the setting information of the base station regarding the communication quality based on the communication amount for each communication type in the cell estimated by using the image data. May include.

The base station according to another aspect of the present invention is a mobile communication base station that performs wireless communication with a plurality of terminal devices via an antenna, and includes the base station adjusting device.

The base station adjustment system according to still another aspect of the present invention includes the base station and an image pickup unit that captures an image of a target area including a part or all of a cell formed by the antenna.

The base station adjustment system according to still another aspect of the present invention includes a mobile communication base station that performs wireless communication via a plurality of terminal devices and antennas, and a target area including a part or all of the cells of the base station. It has an imaging unit for imaging and the base station adjusting device.

The base station adjustment method according to still another aspect of the present invention is a base station adjustment method for adjusting setting information of a mobile communication base station that performs wireless communication via a plurality of terminal devices and antennas, and is the base station adjustment method. It is characterized in that a target area including a part or all of the cell is imaged by an imaging unit, and the setting information of the base station is adjusted by using the imaged image data.

According to the present invention, it is possible to accurately and easily grasp changes in the cell status of a mobile communication base station and appropriately adjust the setting information of the base station.

Explanatory drawing which shows an example of the base station adjustment system which concerns on embodiment. The block diagram which shows one configuration example of the base station apparatus of the base station which constitutes the base station adjustment system. The block diagram which shows one configuration example of the base station adjustment apparatus which constitutes the base station adjustment system. Explanatory drawing of the beam pattern formed by the antenna in the base station apparatus. Explanatory drawing of other beam patterns formed by an antenna in the base station apparatus. An explanatory diagram for explaining the base station adjustment system in the adjustment example 4.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram showing an example of a base station adjustment system according to an embodiment of the present invention.
The base station adjustment system of the present embodiment includes small cell base stations (also referred to as "minimal cell base stations", "picocell base stations" or "microcell base stations") 20A to 20D and macrocells connected to the communication network 10. It includes a base station 30, a terminal device 40 that is a mobile station, and a base station adjusting device 50 that adjusts setting information of the small cell base stations 20A to 20D and the macro cell base station 30.

The communication network 10 of the present embodiment includes the Internet, a wireless access network for cellular mobile communication, a core network, and the like. The core network is an LTE core network (EPC: Evolved Packet Core) compatible with the 4th generation LTE mobile communication system. The core network may be an NR core network corresponding to the NR (New Radio) type mobile communication system in the next generation such as the 5th generation. The NR core network may also support the 4th generation LTE system. Further, the core network may be an LTE core network (EPC: Evolved Packet Core) corresponding to the NR method, or a core network having both NR core network and LTE core network (EPC) functions separately. It may be.

Unlike wide-area macrocell base stations, small cell base stations 20A to 20D have a wireless communication range of several meters to several hundred meters, and can be installed inside buildings such as ordinary homes, stores, and offices. It is a small-capacity base station that can be used. Small cell base stations are sometimes referred to as "Small e-Node B", "Small eNB", "Small gNode", and "Small gNB".

The macrocell base station 30 is a wide-area base station that covers a macrocell which is a normal wide-area area with a radius of several hundred meters to several kilometers installed outdoors, and is a “Macro e-Node B” or “Small eNB”. , "Macro gNode", sometimes called "Small gNB".

In the arrangement configuration of the base stations in the present embodiment, the small cell base stations 20A to 20D are arranged in the macro cell, and the whole or a part of the small cell is included in the macro cell. Network) configuration. This configuration is a configuration in which a large number of small cells are stacked and arranged on a macro cell centering on a hotspot area, and is also called an overlay cell configuration.

In the present embodiment, the base stations 20 and 30 are base stations (eNodeB) corresponding to the LTE system, but may be base stations (gNodeB) corresponding to the NR system. The base stations 20 and 30 each perform wireless communication with the terminal device 40 in each cell using different frequency bands. As the frequency band of the LTE system, for example, a frequency band having a predetermined bandwidth of the LTE band assigned as "E-UTRA operating bands" can be assigned to TS 36.101, which is a technical specification of 3GPP. As the frequency band when the NR method is applied, for example, a frequency band having a predetermined bandwidth in any of 3.7 GHz band, 4.5 GHz band, and 28 GHz band can be assigned and used.

The small cell base stations 20A to 20D are each controlled by being connected to an optical overhanging radio unit (RRH) having an antenna and an optical overhanging radio device (RRH) via a high-speed transmission cable such as an optical fiber cable. -It may be configured by using a baseband device (BBU: Base Band Unit). Further, the small cell base stations 20A to 20D may be configured as individual devices separated from each other, or at least a part of the small cell base stations 20A to 20D may be integrally configured.

The terminal device 40 may be a mobile station that can be carried and used by a user such as a mobile phone or a smartphone, or may be a vehicle, a home appliance, a WiFi router, or the like as long as it can wirelessly communicate with the base stations 20 and 30. It may be a communication device such as a communication terminal module incorporated in a device, an instrument, a machine, or the like. Further, the terminal device 40 may be a large amount of low-cost IoT (Internet of Things) devices in mMTC (Massive Machine-Type Communications) envisioned in the 5th generation mobile communication system.

In this embodiment, the cellular type mobile communication is taken as an example, but other types of mobile communication may be used. Further, the small cell base stations 20A to 20D of the present embodiment exemplify a fixed mobile station fixedly arranged in the baseball field 1 as shown in FIG. 1, for example, an automobile, a railroad, an aircraft, a ship, a balloon, or the like. It may be a mobile base station that is mounted on a mobile body and moves.

In the communication system of FIG. 1, the small cell base stations 20A to 20D form the small cells 100A to 100D covering the inside of the baseball field 1, and the macrocell base station 30 covers a wide area including the baseball field 1. Form a macrocell. As shown in FIG. 1, two small cell base stations 20A to 20D of the present embodiment are arranged near both sides of the outfield seat 5, and each small cell base station 20A to 20D has a terminal device 40. Small cells 100A to 100D are formed according to the shape of the concentrated area.

Further, the small cell base stations 20A to 20D may be configured so that the transmission power and the reception sensitivity to the terminal device 40 are relatively higher than those of the macrocell base station 30, or may be set to different frequencies. In this case, even if the terminal device 40 is in the macro cell of the macro cell base station 30 capable of wireless communication, the terminal device 40 can communicate with the small cell base stations 20A to 20D with higher communication quality. Therefore, in the macro cell of the macro cell base station 30, local traffic can be reliably offloaded at an event venue such as a baseball field 1 where the terminal device 40 can concentrate, and the number of macro cell base stations 30 is increased. The communication quality of mobile communication can be improved without any problem.

For example, during a baseball game, there is usually no or few terminal devices 40 in the ground area 2 where players play, and there are mobile phones, smartphones, etc. in the audience seats such as the back net back seat 3, the infield seat 4, and the outfield seat 5. Users (spectators) who have the terminal device 40 of the above are concentrated. Therefore, in this case, as shown in FIG. 1, the small cell 100A of the first small cell base station 20A causes the third base side portion of the back net back seat 3, the infield seat 4 on the third base side, and the third base side portion of the outfield seat 5. The small cell 100B of the second small cell base station 20B covers the 1st base side part of the back net back seat 3, the infield seat 4 on the 1st base side, and the 1st base side part of the outfield seat 5. Each small cell is formed so that the small cell 100C of the base station 20C covers the left rear portion of the outfield seat 5 and the small cell 100D of the fourth small cell base station 20D covers the right rear portion of the outfield seat 5. ..

In FIG. 1, for example, when the terminal device 40 wirelessly communicating with the macrocell base station 30 moves to the infield seat 4 on the third base side, the terminal device 40 receives radio wave strength from the wireless communication with the macrocell base station 30. Handover processing is possible for wireless communication with the first small cell base station 20A having high or high radio quality (SINR). Further, for example, when the terminal device 40 wirelessly communicating with the first small cell base station 20A moves to the outfield seat 5 on the left side, the terminal device 40 receives from the wireless communication with the first small cell base station 20A. Handover processing is possible for wireless communication with the third small cell base station 20C.

FIG. 2 is a block diagram showing a configuration example of the base station apparatus 200 of the base stations 20 and 30 according to the present embodiment.
In FIG. 2, the base station apparatus 200 of the base stations 20 and 30 communicates wirelessly between the physical layer control unit 201, which controls the entire base station apparatus 200, and the terminal apparatus 40 via the antenna 250. An image of a target area including a part or all of a cell formed by a communication unit 202, a storage unit 203, a data processing unit 204, a core network communication unit 205 that communicates with the core network 60 side, and an antenna 250. It includes a camera 206 as an image pickup unit, and a data communication unit 207 that transmits image data captured by the camera 206 to the base station adjusting device 50. The camera 206 and the data communication unit 207 may be provided as separate devices different from the main body of the base station device 200.

The wireless communication unit 202 is, for example, a signal amplification unit that amplifies a transmission signal and a reception signal, a frequency conversion unit that converts the frequencies of the transmission signal and the reception signal into a predetermined frequency, a radio signal path switching unit, and a transmission / reception common unit (DUP:: Duplexer) etc. are provided.

The base station apparatus 200 may be configured to include a BBU (baseband unit) and an RRH (remote radio head) connected to each other by a communication cable such as an optical fiber. The BBU includes, for example, the physical layer control unit 201, the storage unit 203, the data processing unit 204, and the core network communication unit 205, and the RRH includes, for example, the wireless communication unit 202 described above.

Antennas 250A to 250D of the small cell base stations 20A to 20D in the present embodiment use antennas capable of forming a beam having directivity. For example, the antennas 250A to 250D use an array antenna in which a plurality of omnidirectional antenna elements (antenna elements) are two-dimensionally arranged, and control the signal phase of each antenna element to form a directional beam. It may be anything. Further, the antennas 250A to 250D may be directional antennas such as a horn antenna in which a beam having directivity is formed by a single antenna. Further, even if the antennas 250A to 250D use an array antenna in which antenna elements composed of a plurality of directional antennas are arranged and the signal phase of each antenna element is controlled to form a beam having directivity. good. Further, the antennas 250A to 250D may be sector antennas capable of electric tilt control.

In the present embodiment, as the antennas 250A to 250D, an array antenna in which antenna elements composed of a plurality of omnidirectional antennas are arranged is used, and Massive has a beamforming function capable of controlling the number of antenna beams, the beam width, and the beam direction. An antenna compatible with MIMO (Multiple-Input and Multiple-Output) is used. The beam width and beam direction need only be able to be controlled in at least one of the horizontal direction and the vertical direction. The Massive MIMO compatible antenna has, for example, a maximum of 128 antennas, and is an antenna that allocates a dedicated radio wave to each user by using technologies such as beamforming and spatial multiplexing. While the conventional antenna shares the frequency with a plurality of users, the Massive MIMO compatible antenna occupies a dedicated frequency for each user. In the present embodiment, a Massive MIMO compatible antenna is used as the antenna 250, the width and direction of the beam of the antenna 250 are changed to a desired width and direction by a beamforming function, and small cells 100A to 100D having a desired shape at a desired position are used. To form.

In the present embodiment, as shown in FIG. 1, the small cells 100A to 100D are formed by narrowing the beam to the areas of the spectators' seats 3 to 5 where the terminal devices 40 are concentrated and the communication traffic is increased in the baseball field 1. .. As a result, higher communication quality can be obtained than when the entire baseball field including the ground area 2 is covered with the small cells 100A to 100D.

The first small cell base station 20A and the third small cell base station 20C arranged close to each other can also be configured as a single base station provided with two antennas 250A and 250C. In this case, since a plurality of small cells (sector cells) can be formed by one small cell base station, the number of small cell base stations can be reduced, and the installation cost of the small cell base station can be reduced.

Further, the camera 206 provided in the base station apparatus 200 of the present embodiment is installed so as to take an image of a target area including a part or all of the cells formed by the antenna 250. For example, in FIG. 1, the camera 206A of the first small cell base station 20A takes an image of an area including the entire small cell 100A as a target area. In the present embodiment, as will be described later, in order to predict the entry and exit of a person to and from the small cell 100A using the image data captured by the camera 206A, for example, the area of the small cell 100C or the small cell 100B adjacent to the small cell 100A. The target area may include the back net back seat 3 covered by the small cell 100A, the infield seat 4 on the third base side, and the outside area of the baseball field 1 near the entrance to the outfield seat 5.

Although the camera 206 of the present embodiment is individually provided for each base station device 200 of each base station 20A to 20D, one camera 206 may be shared by a plurality of base station devices 200. For example, an area including the entire baseball field 1 may be captured by one camera, and the captured image data may be used by the base station devices 200 of the base stations 20A to 20D.

FIG. 3 is a block diagram showing a configuration example of the base station adjusting device 50 according to the present embodiment.
The base station adjusting device 50 includes a base station information communication unit 51, a data communication unit 52, an image analysis unit 53, an adjustment processing unit 54, a display unit 55, and an operation unit 56. The base station adjusting device 50 may be configured by a computer device such as a single server, or may be configured so that computer devices such as a plurality of servers cooperate with each other for processing.

The base station information communication unit 51 communicates with the EMS (Element Management System) 61 as a network component management system to change the setting information of the base stations 20 and 30.

The EMS 61 manages the setting information of each of the base stations 20 and 30. In particular, in the present embodiment, the EMS 61 uses key performance indicator (KPI) data calculated by the base stations 20 and 30 based on the measurement report (MR) received from the terminal device 40. Acquire and transmit KPI data to the base station adjusting device 50 as needed. The base station adjusting device 50 adjusts the setting information of the base stations 20 and 30 based on the KPI data acquired from the EMS 61. For example, the base station adjusting device 50 adjusts setting information for controlling the direction and shape of the directional beams of the antennas 250A to 250D of the small cell base stations 20A to 20D based on the KPI data. The EMS 61 optimizes the wireless communication of the small cells 100A to 100D by changing the settings of the small cell base stations 20A to 20D based on the adjusted setting information received from the base station adjusting device 50.

The KPI data used for adjusting the setting information of the base stations 20 and 30 is, for example, a temporal average value (AVG Pass Loss) of the radio propagation loss of the propagation path between the base stations 20 and 30 and the terminal device 40. ), Time average value (AVG Number of RRC Connected User) of the number of terminal devices 40 (number of connected UEs) connected to the cells of each base station 20 and 30, connected to the cells of each base station 20 and 30. The maximum number of terminal devices 40 (number of connected UEs) in time (MAX Number of RRC Connected User), the usage rate of the control channel element (CCE) in the radio resources of the cells of each base station 20 and 30 (CCE). CCE User Radio), the throughput of the terminal device 40 in the downlink of the cells of each base station 20 and 30 (DL User Throughhput), the throughput of the terminal device 40 in the uplink of the cells of each base station 20 and 30 (UL User Throughhput). And so on.

The data communication unit 52 communicates with the data communication unit 207 of each of the base stations 20 and 30, and receives the image data captured by the respective cameras 206.

The image analysis unit 53 analyzes the image data received by the data communication unit 52 and extracts various information inside and outside the cell. The information extracted from the image data is not particularly limited as long as it is useful information for adjusting the setting information of the base stations 20 and 30 in the adjustment processing unit 54. The information extracted from the image data includes, for example, information on the number of people in the cell, information on the number of people outside the cell, attribute information of people in the target area obtained by face recognition processing (for example, age, gender, etc.), and area of the cell. Information (for example, baseball field, urban area, building area, mountainous area, main road, Shinkansen line, etc.), cell environmental information (weather, season, etc.), distribution information of people in the target area, movement of people in the target area Information (movement direction, movement speed, staying time, etc.) can be mentioned.

The base station adjusting device 50 of the present embodiment is an interface for manually adjusting the consistency of the setting information of the base stations 20 and 30 set in the EMS 61 by the operator, and is the image data received by the data communication unit 52. A display unit 55 for displaying an image and an operation unit 56 operated by an operator may be provided. Information analysis performed by an operator who sees an image displayed on the display unit 55 based on an empirical rule or the like is often obtained with high accuracy even if the information is difficult to be extracted by the image analysis unit 53. Therefore, in the present embodiment, by providing the display unit 55 and the operation unit 56, the operator looks at the images inside and outside the cell, analyzes the information, and reflects it in the adjustment of the setting information of the base stations 20 and 30 in the adjustment processing unit 54. You may be able to do it.

The adjustment processing unit 54 adjusts the setting information of the base stations 20 and 30 based on various information extracted by the image analysis unit 53. The setting information of the base stations 20 and 30 to be adjusted is not particularly limited as long as it is a parameter that can be adjusted in the base stations 20 and 30, and not only the parameters used for controlling the base station apparatus 200 including the antenna 250 but also the parameters. It may be a parameter used for controlling the terminal device 40 by communication from the base stations 20 and 30, or a parameter used for controlling the base station device 200 of another adjacent base stations 20 and 30. You may.

Next, the configuration and operation for controlling the beam formed by the antenna 250 of the small cell base stations 20A to 20D will be described.
FIG. 4 is an explanatory diagram of a beam pattern formed by the antenna 250 in the base station apparatus 200 of the small cell base stations 20A to 20D.

When transmitting data to the terminal device 40, the radio frequency communication unit 202 of the base station device 200 transmits the transmission signal to which the precoding control 202a is performed on the transmission baseband signal via the radio frequency (RF) device 202b. It is sent to the antenna 250 composed of an array antenna. When data is received from the terminal device 40, the received signal received by the RF device 202b by the antenna 250 is acquired via the precoding control 202a. The wireless communication unit 202 has a beamforming function for transmitting and receiving in a predetermined beam width and beam direction using the antenna 250 under the control of the physical layer control unit 201. Candidate data for a plurality of types of precoding (beam patterns) that can be used in the beamforming function are stored in the storage unit 203.

Here, the beamforming function by precoding is a set of signal phases (pre-coding) of each antenna element of the antenna 250 (array antenna) so as to receive a beam transmitted in a specific direction or a beam from a specific direction. It is a function to prepare a plurality of types (N) of coding), select one from them, perform precoding control, and control the beam. In the present embodiment, the terminal distribution information of the terminal device 40 existing in the wireless communicable area (beam formable area of the antenna 250) of the wireless communication unit 202 is acquired as KPI data by data processing by the data processing unit 204. The optimum precoding (beam pattern) is selected based on the terminal distribution information. Then, the physical layer control unit 201 controls the beam of the antenna 250 according to the precoding selected by the data processing unit 204.

The beam direction may be fixed and the beam width may be changed to control the beam so as to obtain the optimum beam pattern, or the beam width may be fixed and the beam direction may be changed to obtain the optimum beam pattern. The beam may be controlled so as to be, or the beam may be controlled so as to obtain an optimum beam pattern by changing both the beam width and the beam direction.

As a method of acquiring the terminal distribution information of the terminal device 40 existing in the wireless communication enable area (beam formable area of the antenna 250) of the wireless communication unit 202, the antenna 250 of the own station (small cell base stations 20A to 20D) is used. It suffices if the position information that can specify the relative position of each terminal device 40 can be acquired. As an example of the acquisition method, for example, there is a method in which each terminal device 40 is made to transmit its own position information (GPS information or the like), which is received by the wireless communication unit 202 and acquired by the data processing unit 204. ..

In addition, since the present embodiment has a beamforming function, the direction of arrival of radio waves (DOA: Direction Of Arrival) from each terminal device 40 is estimated, and the terminal distribution using the DOA information of each terminal device 40 as position information. Information may be obtained. In the present embodiment, the data processing unit 204 acquires the terminal distribution information using the DOA information of each terminal device 40 as the position information. By acquiring such DOA information, it is possible to grasp the position and number (number of connections) of the terminal device 40 over the entire wireless communicable area of the wireless communication unit 202 of the small cell base stations 20A to 20D. ..

Further, in the present embodiment, when acquiring the DOA information of the terminal device 40 in the beam pattern of the maximum beam width, each terminal device 40 measures the reception intensity of the radio wave from the small cell base stations 20A to 20D, and the terminal device 40 measures the DOA information. Radio wave propagation loss (PL: Path Loss) information based on the measurement result is transmitted to the small cell base stations 20A to 20D. By receiving this, the PL information of each terminal device 40 can also be acquired as KPI data.

In a situation where the terminal devices 40 are locally concentrated and present, it is desirable to select a beam pattern having a narrow beam width. This is because the narrower the beam width, the higher the radio wave intensity, so that the communication quality of each terminal device that is locally concentrated can be improved, and the number of connections can be increased. Therefore, in the present embodiment, the optimum beam pattern (precoding) is selected on the basis of making it easy to select a beam pattern having a narrow beam width in a situation where the terminal devices 40 are locally concentrated and present. I am trying to be done.

After selecting the beam pattern, the data processing unit 204 selects the precoding corresponding to the selected beam pattern from the plurality of types of precoding candidates stored in the storage unit 203. When precoding is selected by the data processing unit 204, the precoding data is sent to the physical layer control unit 201. The physical layer control unit 201 controls the wireless communication unit 202 according to the precoding data, and the wireless communication unit 202 controls the signal phase of each antenna element of the antenna 250 (array antenna) according to the precoding data. Precoding control is performed. As a result, the beam of the antenna 250 is appropriately set to a narrower beam width in a situation where the terminal devices 40 are locally concentrated, and the small cells 100A to 100D are optimized.

Here, a method of changing the position and shape of the cell formed by the antenna (direction and shape of the beam of the antenna) by the beamforming function is illustrated, but the direction of the antenna (tilt angle, etc.) is physically changed. The position and shape of the cell formed by the antenna (direction and shape of the beam of the antenna) may be changed by a method of changing or changing the radio wave intensity of the antenna.

By the way, in recent years, it has been established from past empirical rules and the like that which setting information of the base station should be adjusted and how the cell can be optimized according to the situation of the cell formed by the antenna 250. There is. However, if the situation in the cell target area changes suddenly and the change cannot be grasped accurately, the setting information of the base station is adjusted based on the inaccurate past information of the cell situation, and as a result, the cell Optimization cannot be achieved.

As a method of grasping the status of the cell, for example, the status of the cell target area when the antenna is installed (the road runs through the cell, it is installed in an event venue such as a baseball field, there is a station, etc.). The cell status, etc. based on the KPI data calculated by the base station or the like based on the method of grasping the method and the measurement report (MR) received from the terminal device 40 in the cell (the number of connections of the terminal device 40 in the cell). And the number of handovers).

However, with the former method, cell optimization cannot be realized when the cell condition or the like changes after the antenna is installed.
In the latter method, the cell status at the time of measurement of the measurement report (MR) can be grasped, but since there is a time lag between the measurement report and the KPI data being generated and acquired, the KPI At the time when the setting information of the base station is adjusted based on the data, the cell status may have changed and the cell optimization may not be realized.
In addition, with the latter method, it is difficult to grasp (predict) the cell status in the near future with high accuracy, so the base station setting information is adjusted in advance according to the cell status in the future. It is also difficult to realize the process of keeping it.

On the other hand, in order to accurately grasp the cell status and the like, a method of visually confirming the cell status and the like is an effective method for optimizing the cell. However, the work of dispatching a worker to a cell to visually check the status of the cell and adjust the setting information of the base station according to the confirmation result is very complicated.

Therefore, in the present embodiment, the target area including a part or all of the cells is imaged by the camera 206, and the image data obtained by the image is used to adjust the setting information of the base stations 20 and 30 in the base station adjusting device 50. Perform the adjustment process to do so. According to this, it is possible to check the cell status, etc. visually without dispatching a worker to the cell, so that the change in the cell status can be accurately and easily grasped and the base station can be checked. The setting information can be adjusted appropriately.

Next, an adjustment example for adjusting the setting information of the small cell base stations 20A to 20D by the base station adjustment system in the present embodiment will be described. The present embodiment is not limited to the following adjustment examples.

[Adjustment example 1]
In this adjustment example 1, a person enters and exits the cell of the base station to be adjusted (for example, the first small cell base station 20A) by using the image data inside and outside the cell captured by the cameras 206 of the base stations 20 and 30. Then, based on the prediction result, a process of adjusting the setting information of the target base station 20A and the setting information of another base station is executed.

Using KPI data such as the average value and the maximum value of the number of terminal devices 40 (number of connected UEs) connected to the cells of each base station 20 and 30, for example, the connected UE in the cell or a cell adjacent thereto. By looking at the time change of the average value and the maximum value of the number, it is assumed that the same time change is shown (indicating continuity) thereafter, and the average value and the maximum number of connected UEs in the future of the cell concerned are shown. It is possible to predict the value and so on. However, in reality, a discontinuous period occurs in which the average value and the maximum value of the number of connected UEs suddenly fluctuate due to a large change in the cell condition or the like. It is difficult to accurately predict the average value and the maximum value of the number of connected UEs of cells in such a discontinuous period from KPI data.

For example, in the example of the baseball stadium 1 shown in FIG. 1, the start of the baseball game is delayed due to a trouble or the like, the baseball game at the baseball stadium 1 is over, or the score is greatly different and the spectators are before the end of the game. Due to various changes in the situation, such as returning home, the movements of spectators watching at baseball stadium 1 will change significantly. Not only is it difficult to predict the presence or absence of such changes and the timing of changes with high accuracy from KPI data, but it is also difficult to grasp even KPI data with a time lag.

On the other hand, if the situation inside and outside the cell is confirmed by an image, it is easy to quickly (almost real-time) grasp the change in the situation as described above. Then, such a change in the situation can be grasped by analyzing and analyzing the image data by the image processing in the image analysis unit 53.

In this adjustment example 1, for example, the movement of a person in the cell of the target base station 20A (for example, whether or not there is a lot of movement of a person trying to get out of the cell), the movement of a person in an area adjacent to the cell of the target base station 20A. (For example, whether or not there is a lot of movement of a person trying to enter the cell) is grasped by performing a predetermined image recognition process in the image analysis unit 53. Such movements of people can be grasped, for example, by recognizing people existing in or outside the cell based on image data and analyzing the number of people, the moving direction and moving speed of the people, and the like. can. If such movements of people can be grasped, it is possible to accurately predict the entry and exit of people to the cell of the target base station 20A, so that it is possible to predict the number of future connected UEs in the cell of the target base station 20A with high accuracy. It is possible.

Based on such a prediction result, for example, when the number of terminal devices 40 in the cell of the target base station 20A is predicted to increase rapidly, the number of terminal devices 40 may increase rapidly in advance. Adjustment of setting information for correspondence, for example, adjustment to increase the radio field strength of the antenna 250A, and the like are performed.

At this time, not only the setting information of the target base station 20A but also the setting information of other small cell base stations 20B to 20D and the macro cell base station 30 may be adjusted as needed. For example, in order to cover a part of the cell of the target base station 20A to cover the surrounding small cell base stations 20B and 20C, the beam direction and beam shape of the antennas 250B and 250C of the surrounding small cell base stations 20B and 20C are set. You may adjust the setting information to change or adjust the signal strength. Further, the setting information of the macro cell base station 30 may be adjusted to offload the local traffic in the small cell 100A of the target base station 20A.

Further, for example, when the number of terminal devices 40 in the cell of the target base station 20A is predicted to decrease sharply, the setting information may be adjusted to cope with the sudden decrease in the number of terminal devices 40. For example, adjustments are made such as lowering the radio field strength of the antenna 250A or partially turning off the power supply. By such adjustment, the power consumption in the target base station 20A can be suppressed. Further, since the target base station 20A has a margin, for example, the beam direction and the beam shape of the antenna 250A of the target base station 20A can be changed or the radio wave intensity can be changed in order to cover a part of the cells of the surrounding base stations 20B and 20C. You may adjust the setting information to adjust.

As described above, according to the present adjustment example 1, the target base station 20A is used by using the image data inside and outside the cell captured by the camera 206A of the target base station 20A (or, if necessary, the camera of another base station). It is possible to predict the entry and exit of people to and from the cell with high accuracy. Therefore, based on this prediction result, it is possible to know in advance that the number of terminal devices 40 in the cell of the target base station 20A will rapidly increase or decrease. Therefore, the setting information of the base station can be quickly adjusted in response to a rapid increase or decrease in the number of terminal devices 40 in the cell.

Further, conventionally, there have been cases where it is not possible to predict with high accuracy the rapid increase or decrease in the number of terminal devices 40 in the cell of the target base station 20A. Therefore, even if the number of terminal devices 40 in the cell of the target base station 20A is predicted to decrease, the radio wave of the antenna 250A of the target base station 20A may be increased thereafter. It was difficult to reduce the strength or partially turn off the power. According to this adjustment example 1, which enables highly accurate prediction based on image data, it is possible to reduce the radio wave strength of the antenna 250A of the target base station 20A or partially turn off the power supply, resulting in high energy saving. The effect is obtained.

[Adjustment example 2]
In this adjustment example 2, the weather of the cell of the base station to be adjusted (for example, the first small cell base station 20A) is estimated by using the image data inside and outside the cell captured by the cameras 206 of the base stations 20 and 30. Based on the estimation result, a process of adjusting the setting information of the target base station 20A and the setting information of another base station is executed.

In the example of the baseball stadium 1 shown in FIG. 1, the movement of the spectator may change significantly due to the change in the weather. For example, if a baseball game is interrupted due to heavy rain or thunder, spectators who are about to return will gather at the doorway of baseball field 1, or spectators who have left the doorway will concentrate at the nearest station. Can be predicted. In addition, for example, in the case of heavy rain or thunder at an outdoor event venue or in the case of fine weather, it is possible to predict the area where people will concentrate depending on the weather, such as the area where people tend to concentrate in the covered area. ..

It is difficult to predict the timing of changes in weather from KPI data. On the other hand, if the situation inside the cell is confirmed by an image, it is possible to easily and quickly grasp the weather inside the cell. Then, such a change in the situation can be grasped by analyzing and analyzing the image data by the image processing in the image analysis unit 53.

In the second adjustment example 2, the weather in the cell of the target base station 20A is determined by performing a predetermined image recognition process in the image analysis unit 53, for example, by detecting raindrops or the like and grasping the amount of rain or snow. , It is possible to detect the occurrence of lightning by detecting lightning, and to know that the weather is fine from the brightness of the image. If the weather can be grasped in this way, for example, the number of future connected UEs in the cell of the target base station 20A and the movement in which the person who was in the cell of the target base station 20A is predicted to move. It is possible to predict the number of future connected UEs in the above area) with high accuracy.

Based on such a prediction result, the setting information of the target base station 20A and, if necessary, the setting information of the other small cell base stations 20B to 20D and the macro cell base station 30 are adjusted as in the adjustment example 1 described above. To change the signal strength or partially turn off the power. Further, the wireless setting to the nearest station, which is concentrated when returning home, can be adjusted by changing the setting of the SON parameter belonging to EMS61.

According to this adjustment example 2, the weather of the cell of the target base station 20A is determined by using the image data in the cell captured by the camera 206A of the target base station 20A (or, if necessary, the camera of another base station). It can be estimated with high accuracy. Therefore, based on this estimation result, the number of terminal devices 40 in the cell of the target base station 20A may increase or decrease rapidly, or the number of terminal devices 40 in the cells of other base stations may increase or decrease rapidly. It is possible to know in advance that it will decrease. Therefore, the setting information of the base station can be quickly adjusted in response to a rapid increase or decrease in the number of terminal devices 40 in the cell.

[Adjustment example 3]
In this adjustment example 3, the contents of the implementation event in the cell of each base station are specified by using the image data inside and outside the cell captured by the cameras 206 of the base stations 20 and 30, and each base is based on the specific result. Executes the process of adjusting the setting information of the station and the setting information of other base stations.

In the example of the baseball stadium 1 shown in FIG. 1, when a baseball game is played, as described above, users (spectators) having the terminal device 40 are concentrated in the spectator seats 3, 4, and 5. As shown in 1, each of the small cells 100A to 100D of the small cell base stations 20A to 20D is set to cover the spectator seats 3, 4, and 5 by removing the ground area 2. However, for example, in the above-mentioned baseball stadium 1, a concert event or the like may be held instead of a baseball game, and in this case, spectator seats may also be provided in the ground area 2. In this case, as shown in FIG. 5, it is desirable that the small cells 100A'to 100D' can also cover the ground area 2.

Here, even when a concert event is held at the baseball stadium 1, the area where the spectators are concentrated differs greatly depending on the content of the concert event. For example, the area where the audience is concentrated differs greatly depending on whether the stage of the concert event is installed on the back net side, the outfield side, or the center of the ground area 2. The contents of such a concert event can be easily and quickly grasped by confirming the situation of the event venue with an image. Then, such a situation can be grasped by analyzing and analyzing the image data by the image processing in the image analysis unit 53.

The content of the event (whether it is a baseball event or a concert event with a stage placed on the outfield side, etc.) in the cell of the base station to be adjusted (for example, small cell base stations 20A to 20D) is determined by the image analysis unit 53. By performing the image recognition process of, for example, it is possible to specify by pattern matching or the like. If the content of the implementation event can be grasped in this way, for example, it is possible to predict with high accuracy the number of connected UEs during the event in the cells of each small cell base station 20A to 20D.

Based on such a prediction result, similarly to the adjustment example 1 described above, the setting information of the target base station is adjusted to change the radio field strength or partially turn off the power.

According to this adjustment example 3, the content of the event carried out in the cells of the small cell base stations 20A to 20D is specified with high accuracy by using the image data inside and outside the cell captured by the cameras 206 of the base stations 20 and 30. can do. Therefore, based on the content of this specified implementation event, it is possible to know in advance that the number of terminal devices 40 in the cells of each small cell base station 20A to 20D will rapidly increase or decrease. Therefore, the setting information of the base station can be quickly adjusted in response to a rapid increase or decrease in the number of terminal devices 40 in the cell.

[Adjustment example 4]
FIG. 6 is an explanatory diagram for explaining the base station adjustment system in the present adjustment example 4.
The base station 30'shown in FIG. 6 includes three antennas 350A to 350C, and a line 71 of a high-speed railway 70 such as a Shinkansen exists in a cell formed by the antennas 350A. Therefore, many people get on the high-speed railway 70, and their terminal devices 40 move at high speed. For the terminal device 40 that moves at high speed in this way, it is desirable to adjust the setting information of the base station 30'related to the cell switching of the terminal device 40 as compared with the case of moving at low speed such as walking speed.

Specifically, the base station 30'is connected to the terminal device 40 as follows until the terminal device 40 approaching the vicinity of the cell boundary in its own cell (sector cell of the antenna 350A) exits the cell. The process for switching to the cell (reselection process, handover process) is executed. The determination of cell switching is mainly made based on the measurement report (MR) received by the base station 30'from the terminal device 40. At this time, for the terminal device 40 that moves at high speed, the measurement report (MR) cannot be performed in time for the measurement report (MR) optimized for the terminal device that moves at low speed, and the cell switching process cannot be performed. It causes a situation where communication is temporarily disconnected. On the other hand, at the frequency of measurement report (MR) optimized for a terminal device that moves at high speed, the power consumed by the terminal device 40 for the measurement report (MR) increases, and high-speed communication is also hindered. This is a disadvantage for the terminal device 40 that moves at low speed.

Therefore, conventionally, when the base station 30'is installed (when the antenna is installed), the condition of the cell (high-speed rail line, highway, etc.) can be grasped visually by a person. In the case of a cell having many terminal devices 40 moving at high speed, the setting information of the base station 30'was adjusted, such as increasing the frequency of measurement reports (MR).

However, when the base station 30'is installed (when the antenna is installed), the method of visually grasping the cell status (high-speed rail line, highway, etc.) is very difficult. It's complicated. Further, if the condition of the cell or the like changes after the installation of the base station 30'(after the installation of the antenna), the setting information of the base station 30'may be inappropriate. For example, if a high-speed rail line or highway that was not installed at the time of installation is laid after installation, the frequency of measurement reports (MR) is insufficient, and communication is temporarily cut off because the cell switching process cannot be completed in time. Invite.

Therefore, in the present adjustment example 4, the moving speed of the terminal device 40 in the cell is estimated by using the image data of the cell captured by the camera 306 of the base station 30'. Specifically, the image data of the cell is used to determine whether there is a situation in the cell where the terminal device can move at high speed, such as a high-speed railroad track or a highway, and the terminal device can move at high speed. If it is determined that the situation is the case, it is estimated that the moving speed of the terminal device 40 in the cell is high.

As described above, the moving speed of the terminal device 40 in the cell of the base station 30'is determined by performing a predetermined image recognition process in the image analysis unit 53, for example, in the cell such as a high-speed railway track or a highway. Can be estimated by the presence or absence of. Then, based on this estimation result, in the present adjustment example 4, the setting information of the base station 30'related to the cell switching of the terminal device 40 is adjusted, such as increasing the frequency of the measurement report (MR).

According to the fourth adjustment example, the moving speed of the terminal device 40 in the cell of the target base station 30'can be estimated with high accuracy by using the image data in the cell captured by the camera 306 of the target base station 30'. Therefore, based on this estimation result, it is possible to appropriately and easily adjust the setting information of the base station 30'related to the cell switching of the terminal device 40, such as increasing the frequency of measurement reports (MR).

Further, for example, on a highway, the moving speed of a vehicle may be significantly lower than the moving speed during non-traffic jam due to the occurrence of traffic jam. In this case, since the moving speed of the terminal device 40 of the person in the vehicle or the terminal device 40 mounted on the vehicle becomes low, the measurement report (MR) optimized for the moving speed during non-congestion. The frequency (high frequency) increases the power consumption of the terminal device 40 and hinders high-speed communication.

In the present adjustment example 4, the occurrence of traffic congestion on the expressway passing through the cell is easily and quickly grasped by using the image data in the cell captured by the camera 306 of the target base station 30'. Can be done. Therefore, when it is grasped from the image data that the traffic jam has occurred on the expressway, it is estimated that the moving speed of the terminal device 40 in the cell of the target base station 30'is slow, and the frequency of the measurement report (MR) is determined. By adjusting the setting information of the base station 30'related to the cell switching of the terminal device 40, such as lowering, it is possible to optimize the terminal device for low-speed movement. In addition, the beam can be optimized for the stop area to limit the size of the cell.

[Adjustment example 5]
In this adjustment example 5, the communication amount for each communication type in the cell is estimated by using the image data in the cell captured by the camera 206A of the base station to be adjusted (for example, the first small cell base station 20A). A process of adjusting the setting information of the target base station 20A regarding the communication quality is executed based on the estimation result.

In the setting information of the base station, there is setting information regarding the communication quality for each communication type. Examples of this setting information include a target BLER (Block Eror Rate) and the like. The target BLER is a parameter indicating an allowable range of communication errors, and in general, by setting the target BLER high, it is possible to communicate with more terminal devices 40 under the same power conditions. However, if the target BLER is set high, communication errors are likely to occur. Therefore, it is preferable to set the target BLER low if there are many voice real-time communications that do not want communication errors. Therefore, if the communication type of the terminal device 40 connected to the cell 100A of the target base station 20A is a situation where the communication amount of voice real-time communication is large, the target BLER is set low to ensure the communication quality and the real-time property. In a situation where there is a large amount of download communication such as web pages and video contents that are not required, setting a high target BLER to secure the number of connected UEs leads to cell optimization.

Such a difference in the situation can be easily and quickly grasped by confirming the situation in the cell with an image. For example, by grasping attribute information such as age and gender of a person in a cell, it is possible to estimate the communication volume for each communication type of the cell based on the usage tendency of the communication type according to the attribute information. can. Specifically, if there are a relatively large number of elderly people who have a high tendency to use voice real-time communication, it can be estimated that the amount of voice real-time communication is large, and the use of web pages and video content rather than voice real-time communication. If the number of young people with a high tendency is relatively large, it can be estimated that the amount of non-real-time download communication is large.

Then, in the present adjustment example 5, the image analysis unit 53 performs a predetermined image recognition process using the image data in the cell captured by the camera 206A of the base station to be adjusted (for example, the first small cell base station 20A). For example, attribute information such as age and gender of a person in the cell is grasped by face recognition processing or the like. If the attribute information of the person in the cell can be grasped in this way, as described above, for example, the communication amount for each communication type of the cell can be estimated based on the usage tendency of the communication type according to the attribute information. Can be done. Based on such an estimation result, the setting information such as the target BLER is adjusted so as to be suitable for the estimated communication amount for each communication type.

According to this adjustment example 5, the attribute information of the person in the cell is grasped by using the image data in the cell captured by the camera 206A of the target base station 20A, and the usage tendency of the communication type according to the attribute information is also obtained. It is possible to estimate the amount of communication for each communication type. Thereby, the setting information of the target base station 20A regarding the communication quality can be appropriately adjusted based on the estimation result.

Further, as the setting information for setting the communication quality for each communication service (communication type), for example, QCI (Quality of Service) class identifier, QCI (Quality of Service) can be mentioned. The QCI indicates a service type (for example, voice, emergency call, smartphone packet, pocket WIFI, etc.). Radio quality parameters (whether or not bandwidth is guaranteed, priority, estimated delay time, etc.) can be defined for each QCI.

According to this adjustment example 5, the attribute information of the person in the cell is grasped by using the image data in the cell captured by the camera 206A of the target base station 20A, and the usage tendency of the communication type according to the attribute information is also obtained. It is possible to estimate the amount of communication for each communication service (communication type). Therefore, by adjusting the QCI for each communication service (communication type) based on the estimation result, it is possible to optimize the cell of the target base station 20A in more detail.

In each of the above-mentioned adjustment examples, the image analysis unit 53 analyzes and analyzes the image data inside and outside the cell captured by the camera, and the adjustment processing unit 54 adjusts the setting information of the base station based on the result. Was an example of doing. However, the present invention is not limited to this, and for example, the operator may adjust the setting information of the base station without using the analysis by the image analysis unit 53 and the result of the analysis, or by using the result in combination. That is, an image based on image data inside and outside the cell captured by the camera is displayed on the display unit 55, and the operator sees the image and inputs an adjustment instruction determined by an empirical rule or the like by the operation unit 56, and the input operation content is input. The adjustment processing unit 54 may perform the adjustment processing based on the above.

Further, in the present embodiment, the base stations 20 and 30 including the baseball field 1 in the cell have been described as an example, but the same can be applied to any place in the base station including the cell. Is. For example, in addition to outdoor event venues other than baseball stadiums (outdoor concert venues, fireworks venues, racetracks, etc.), indoor event venues (indoor concert venues, shopping malls, etc.), transportation bases such as stations and airports, etc. It is applicable to the base stations included in.

Further, in the present embodiment, a configuration example in which the base station adjusting device 50 is provided as a separate device different from the base stations 20 and 30 has been described, but the base station adjusting device 50 may be mounted in the base stations 20 and 30. good. Further, in the present embodiment, a configuration example in which the camera 206 is provided in the base stations 20 and 30 has been described, but the camera 206 may be provided as a separate device different from the base stations 20 and 30, or the base station 20 may be provided. , 30 may be provided at a position away from the antenna.

The processing process described in the present specification and the components of the base station adjustment system, the base station adjustment device, the base station device and the terminal device (mobile station device, user terminal device, mobile device) are implemented by various means. can do. For example, these processes and components may be implemented in hardware, firmware, software, or a combination thereof. For example, the process in the base station apparatus of the present embodiment described above may be performed by loading a predetermined program into the hardware described later and executing the process, or by executing a predetermined program preliminarily incorporated in the hardware described below. , Will be realized.

Regarding hardware implementation, the means such as the processing unit used to realize the above steps and components in an entity (for example, various wireless communication devices, NodeBs, terminals, hard disk drive devices, or optical disk drive devices) is 1. One or more application-specific ICs (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, It may be implemented in a controller, a microcontroller, a microprocessor, an electronic device, another electronic unit designed to perform the functions described herein, a computer, or a combination thereof.

Further, for firmware and / or software implementation, means such as a processing unit used to realize the above components are programs (eg, procedures, functions, modules, instructions) that execute the functions described herein. , Etc.) may be implemented. In general, any computer / processor readable medium that clearly embodies the firmware and / or software code is a means such as a processing unit used to implement the steps and components described herein. May be used to implement. For example, the firmware and / or software code may be stored in memory and executed by a computer or processor, for example, in a control device. The memory may be mounted inside the computer or processor, or it may be mounted outside the processor. The firmware and / or software code may be, for example, a random access memory (RAM), a read-only memory (ROM), a non-volatile random access memory (NVRAM), a programmable read-only memory (PROM), or an electrically erasable PROM (EEPROM). ), Flash memory, floppy (registered trademark) discs, compact discs (CDs), digital versatile discs (DVDs), magnetic or optical data storage devices, etc. good. The code may be executed by one or more computers or processors, or the computers or processors may be made to perform functional embodiments described herein.

Further, the medium may be a non-temporary recording medium. Further, the code of the program may be read and executed by a computer, a processor, or another device or device machine, and the format thereof is not limited to a specific format. For example, the code of the program may be any of source code, object code, and binary code, or may be a mixture of two or more of these codes.

Also, the description of the embodiments disclosed herein is provided to allow one of ordinary skill in the art to manufacture or use the present disclosure. Various amendments to this disclosure will be readily apparent to those of skill in the art and the general principles defined herein are applicable to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be recognized in the broadest range consistent with the principles and novel features disclosed herein.

1: Baseball field 2: Ground area 3 to 5: Audience seat 10: Communication network 20: Small cell base station 30: Macrocell base station 40: Terminal device 50: Base station adjustment device 51: Base station information and communication unit 52: Data communication Unit 53: Image analysis unit 54: Adjustment processing unit 55: Display unit 56: Operation unit 60: Core network 61: EMS
70: High-speed railway 71: Line 100: Cell 100A to 100D: Small cell 200: Base station device 201: Physical layer control unit 202: Wireless communication unit 203: Storage unit 204: Data processing unit 205: Core network communication unit 206, 306 : Camera 207: Data communication unit 250, 350: Antenna

Claims (13)

A base station adjustment device that adjusts the setting information of a mobile communication base station that performs wireless communication with multiple terminal devices via an antenna.
An acquisition unit that acquires image data that captures an image of a target area including a part or all of the cells of the base station.
A base station adjusting device comprising a processing unit that executes an adjustment process for adjusting the setting information of the base station using the image data acquired by the acquisition unit. In the base station adjusting device according to claim 1,
The base station adjusting device, characterized in that the setting information is information for setting at least one of the direction and the shape of the directional beam of the antenna. In the base station adjusting device according to claim 1 or 2.
The processing unit has information on the number of people in the cell, information on the number of people outside the cell, attribute information on people in the target area, regional information on the cell, environmental information on the cell, and the target, which are obtained from the image data. A base station adjusting device, characterized in that the adjustment process is executed by using at least one of the distribution information of people in the area and the movement information of people in the target area. In the base station adjusting device according to any one of claims 1 to 3.
The processing unit is a base station adjusting device that executes the adjusting process by using a main performance index generated based on a measurement report received from the plurality of terminal devices. In the base station adjusting device according to any one of claims 1 to 4.
The adjustment process includes a process of adjusting setting information of the base station based on a prediction result of people entering and exiting the cell predicted using the image data. In the base station adjusting device according to any one of claims 1 to 5.
The adjustment process includes a process of adjusting the setting information of the base station based on the weather of the cell estimated by using the image data. In the base station adjusting device according to any one of claims 1 to 6.
The adjustment process includes a process of adjusting setting information of the base station based on the content of an execution event in the cell estimated using the image data. In the base station adjusting device according to any one of claims 1 to 7.
The adjustment process includes a process of adjusting the setting information of the base station regarding the switching of the cell to which the terminal device is connected based on the moving speed of the terminal device in the cell estimated using the image data. A base station adjustment device characterized by. In the base station adjusting device according to any one of claims 1 to 8.
The adjustment process includes a process of adjusting the setting information of the base station regarding the communication quality based on the communication amount for each communication type in the cell estimated using the image data. Adjustment device. A mobile communication base station that performs wireless communication with multiple terminal devices via an antenna.
A base station including the base station adjusting device according to any one of claims 1 to 9. The base station according to claim 10 and
A base station adjustment system comprising an imaging unit that captures an image of a target area including a part or all of a cell formed by the antenna. Mobile communication base stations that perform wireless communication via multiple terminal devices and antennas,
An image pickup unit that captures an image of a target area including a part or all of the cells of the base station.
A base station adjustment system comprising the base station adjustment device according to any one of claims 1 to 9. It is a base station adjustment method that adjusts the setting information of a mobile communication base station that performs wireless communication with multiple terminal devices via an antenna.
An image of the target area including a part or all of the cells of the base station is taken.
A base station adjustment method, characterized in that the setting information of the base station is adjusted using the captured image data.

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