JP7305066B2 - Wireless communication control system and wireless communication control method - Google Patents

Description

The present disclosure relates to a radio communication control system and radio communication control method.

For the purpose of improving the safety and stability of trains and improving maintainability by streamlining ground equipment, a train control system using wireless communication, that is, a wireless train control system, has been developed and put into practical use (non- Patent document 1).

The wireless train control system shown in Non-Patent Document 1 is composed of a ground system provided on the ground along the train track and an on-board system provided on the train. Position information, speed information and stop limit information of each train are exchanged by radio communication between the ground radio equipment of the ground system and the on-board radio equipment of the on-board system. Based on this, train speed control and interval control are automatically performed. This enables safe and stable train operation.

The advantages of wireless communication of the above control information are that the interval between trains is shorter than before, the stability of train operation is improved, and the slimming of wayside equipment makes it easier to relocate tracks. flexible changes can be made at the same time, and operation and maintenance are reduced.

Shigeto Hiraguri, "Trends and Future of Train Control Systems," Railway Research Review, Railway Technical Research Institute, January 2017, Vol. 74, p. 4-7

A radio train control system employs a frequency repetition method in which radio frequencies of a certain type (for example, four types) are sequentially and repeatedly assigned to a plurality of ground radio devices. In this method, a moving on-board radio device performs handover at a certain point to change the radio frequency and slot number used by the on-board radio device.

However, in a conventional wireless train control system, the handover point at which handover takes place is fixed. Therefore, even if the wireless environment changes due to new construction of buildings after the start of use of the wireless train control system, there is a problem that appropriate handover cannot be performed according to the change.

Therefore, the present disclosure has been made in view of the above-described problems, and aims to provide a technology that enables appropriate handover in accordance with changes in the radio environment.

A wireless communication control system according to the present disclosure includes a plurality of ground wireless devices provided on the ground along train tracks, a working wireless device and a standby wireless device provided on the train; an on-board radio device for acquiring a radio wave state between a system radio and the ground radio device; and a radio control device provided on the ground and capable of communicating with the plurality of ground radio devices and the on-board radio device. and the radio control device, based on the basic data including the radio wave state regarding the position of the train, at a point where handover is performed between the active radio device and the plurality of ground radio devices. It includes a learning unit that learns a certain handover point, and a control unit that controls the handover point based on the learning result of the learning unit.

According to the present disclosure, learning of handover points is performed based on basic data including the radio wave state between the standby radio device and the ground radio device with respect to the position of the train. According to such a configuration, appropriate handover can be performed in accordance with changes in the radio environment.

Objects, features, aspects and advantages of the present disclosure will become more apparent with the following detailed description and accompanying drawings.

1 is a diagram schematically illustrating the configuration of a radio train control system according to Embodiment 1; FIG. 1 is a diagram schematically illustrating the configuration of a terrestrial radio apparatus according to Embodiment 1; FIG. 1 is a diagram schematically illustrating the configuration of a terrestrial radio apparatus according to Embodiment 1; FIG. 1 is a diagram schematically exemplifying the configuration of an on-vehicle radio apparatus according to Embodiment 1; FIG. 1 is a diagram schematically exemplifying the configuration of an on-vehicle radio apparatus according to Embodiment 1; FIG. 1 is a diagram schematically illustrating the configuration of a radio network controller according to Embodiment 1; FIG. 2 is a diagram illustrating a database according to Embodiment 1; FIG. 4 is a diagram for explaining basic data generation processing according to the first embodiment; FIG. 4 is a diagram for explaining basic data generation processing according to the first embodiment; FIG. 4 is a diagram for explaining basic data generation processing according to the first embodiment; FIG. 4 is a diagram for explaining basic data generation processing according to the first embodiment; FIG. FIG. 7 is a diagram schematically illustrating the configuration of a radio train control system according to Embodiment 2; FIG. 4 is a diagram schematically illustrating the configuration of a ground radio apparatus according to Embodiment 2;

<Embodiment 1>
FIG. 1 is a diagram schematically illustrating the configuration of a radio train control system to which the radio communication control system and radio communication control method according to Embodiment 1 are applied. A radio train control system includes a ground system provided on the ground and an on-board system provided on the train.

The terrestrial system includes a plurality of terrestrial radio devices (terrestrial radio devices 101 , 102 , 103 ), a radio control device 301 , a radio base station 302 and a terrestrial network 303 . The ground radio equipments 101, 102, 103 are radio equipments which are provided along the train tracks and perform the original work of the ground system. Since the ground radio equipments 101, 102, and 103 are substantially the same as each other, the ground radio equipment 101 will be mainly described below.

The on-board system includes on-board wireless devices 201 and 202 . The on-board radio devices 201 and 202 are radio devices that are provided on the train and perform the original work of the on-board system. Since the on-board wireless devices 201 and 202 are substantially the same, the on-board wireless device 201 will be mainly described below.

The radio control device 301 is provided on the ground. The radio control device 301 is connected to a radio base station 302 that uses a radio communication system such as 4G or 5G, and can communicate with the onboard radio devices 201 and 202 via the radio base station 302 . Also, the radio control device 301 is connected to a ground network 303 formed of, for example, a wired line, and can communicate with the ground radio devices 101, 102, and 103 via the ground network 303. FIG. Although a detailed description will be given later, the radio control device 301 manages and controls handover points at which handovers are performed between the on-board radio device 201 and the ground radio devices 101 , 102 , and 103 .

FIG. 2 is a diagram schematically illustrating the configuration of ground radio equipment 101 according to the first embodiment. The terrestrial radio equipment 101 of FIG. 2 includes a working radio 111 and a backup radio 121 that is a redundant configuration of the radio 111 . The wireless device 111 and the wireless device 121 can communicate by transmitting and receiving wireless signals to and from the onboard wireless device 201 via a common antenna. Also, the radios 111 and 121 can communicate with the radio control device 301 via the terrestrial network 303 .

FIG. 3 is a diagram illustrating the configuration of ground radio apparatus 101 according to Embodiment 1 in more detail than FIG. The wireless device 111 includes a transmission/reception section 112 and a control section 113 . The transmitting/receiving unit 112 performs wireless communication with the onboard wireless device 201 via a common antenna. The control unit 113 controls the radio communication of the transmitting/receiving unit 112 based on the control information from the radio control device 301, and controls, for example, the strength of the radio communication of the transmitting/receiving unit 112, the frequency channel and the slot number. Radio 121 includes transceiver 122 and controller 123 similar to transceiver 112 and controller 113 .

Based on wireless communication between the on-board wireless device 201 and the transmitting/receiving unit 112, the active control unit 113 acquires first train control information (train control information) including train positions and the like. Then, the active system control unit 113 transmits the first train control information to the radio control device 301 via the ground system network 303 .

FIG. 4 is a diagram schematically exemplifying the configuration of on-vehicle radio apparatus 201 according to the first embodiment. The on-board radio equipment 201 in FIG. The wireless device 211 and the wireless device 221 can communicate by transmitting and receiving wireless signals to and from the ground wireless device 101 via a common antenna. For example, the wireless device 211 can communicate with the wireless device 111 of the ground wireless device 101 by transmitting and receiving wireless signals to each other, and the wireless device 221 can communicate with the wireless device 121 of the ground wireless device 101 by transmitting and receiving wireless signals. Communication is possible by

The wireless device 211 and the wireless device 221 are connected to a general-purpose wireless device 231 using a wireless communication system such as 4G, 5G, etc., provided in the train, and can communicate with the wireless control device 301 via the general-purpose wireless device 231 or the like. It has become. In FIG. 4, the on-board wireless device 201 and the general-purpose wireless device 231 are provided separately, but the on-board wireless device 201 may include the general-purpose wireless device 231, for example.

FIG. 5 is a diagram illustrating the configuration of the on-vehicle wireless device 201 according to the first embodiment in more detail than FIG. 4. As shown in FIG. The wireless device 211 includes a transmitter/receiver 212 and a controller 213 . The transmitting/receiving unit 212 performs radio communication with the ground radio equipment 101 via a common antenna. The control unit 213 controls the radio communication of the transmitting/receiving unit 212 based on the control information from the radio control device 301, and controls, for example, the strength of the radio communication of the transmitting/receiving unit 212, the frequency channel and the slot number. Radio 221 includes transceiver 222 and controller 223 similar to transceiver 212 and controller 213 .

Handover of wireless communication is performed between the active wireless device 211 and the ground wireless devices 101 , 102 and 103 . Based on radio communication between the ground radio device 101 and the transmitting/receiving unit 212, the working system control unit 213 controls the second train including the radio wave state between the working radio device 211 and the ground radio device 101. Get information. Then, the active control unit 213 transmits the second train control information to the radio control device 301 via the general-purpose radio 231 or the like.

The standby system control unit 223 monitors the radio wave state including the radio wave state between the standby system radio device 221 and the ground radio device 101 based on the radio communication between the ground radio device 101 and the transmission/reception unit 222 . Get information. Then, the standby control unit 223 transmits the radio wave state monitoring information to the radio control device 301 via the general-purpose radio 231 or the like.

FIG. 6 is a diagram schematically illustrating the configuration of radio network controller 301 according to the first embodiment. A radio control device 301 in FIG. 6 includes a radio control core processing section 311 , an input/output I/F (interface) section 321 and a model storage section 331 .

Input/output I/F section 321 is connected to radio base station 302 and terrestrial network 303 . The radio control core processing unit 311 transmits and receives various information to and from the ground radio device 101 and transmits and receives various information to and from the on-board radio device 201 via the input/output I/F unit 321 and the like. For example, the radio control core processing unit 311 receives first train control information from the ground radio device 101, receives second train control information and radio wave condition monitoring information from the on-board radio device 201, 101 and the on-board wireless device 201. Note that the radio control core processing unit 311 may receive input information from a host system.

The radio control core processing section 311 includes a train operation state management section 312 , a state learning section 313 , a handover point estimation section 314 and a use slot number estimation section 315 . The train operation state management unit 312 and the state learning unit 313 are included in the concept of the learning unit, and the handover point estimation unit 314 and the used slot number estimation unit 315 are included in the concept of the control unit.

The train operation state management unit 312 uses the first train control information from the ground radio device 101 and the second train control information and radio wave state monitoring information from the on-board radio device 201 to create a database used by the state learning unit 313. to generate

The state learning unit 313 generates basic data including the radio wave state between the standby radio unit 221 and the ground radio unit 101 regarding the position of the train from the database generated by the train operation state management unit 312 . The state learning unit 313 then learns handover points, which are points at which handovers are performed between the active wireless device 211 and the ground wireless devices 101 , 102 and 103 , based on the basic data. In the first embodiment, state learning section 313 also learns the slot numbers used between working radio device 211 and ground radio devices 101, 102, and 103 based on the basic data. AI (Artificial Intelligence) learning, for example, is used for these learnings.

The handover point estimation unit 314 controls (changes) the handover point by transmitting control information to the ground radio apparatus 101 and the on-board radio apparatus 201 based on the learning result of the handover point.

The used slot number estimator 315 controls (changes) the used slot number by transmitting control information to the terrestrial radio device 101 and the on-board radio device 201 based on the learning result of the slot number.

The model storage unit 331 stores basic data and learning results of the state learning unit 313 . The basic data and learning results stored in the model storage unit 331 are appropriately used for future learning in the state learning unit 313 .

<Action>
The operation of the radio train control system according to the first embodiment will be described below.

The active radio device 111 of the ground radio device 101 shown in FIGS. 2 and 3 transmits the first train control information based on communication with the on-board radio device 201 to the radio control device 301 via the ground network 303. .

The radios 211 and 221 of the in-vehicle radio equipment 201 shown in FIGS.

The active wireless device 211 changes the radio frequency channel at the handover point.

The standby radio device 221 changes the radio frequency channel at a point before or after the handover point by the distance indicated by the parameter set by the radio control device 301 . Alternatively, the standby radio unit 221 changes the radio frequency channel at a point before or after the time indicated by the parameter set by the radio control unit 301 from the timing at which the train passes the handover point. Therefore, the position of the train for which the standby radio unit 221 changes the radio frequency channel can be obtained from the handover point and the above parameters. Note that the above parameters may be appropriately changed by the radio controller 301 in order to obtain radio wave condition monitoring information for various positions on the train.

The working wireless device 211 transmits the second train control information based on communication with the ground wireless device 101 to the wireless control device 301 via the general-purpose wireless device 231 and the ground wireless base station 302 . The standby radio device 221 transmits radio wave condition monitoring information based on communication with the ground radio device 101 to the radio control device 301 via the general-purpose radio device 231 and the radio base station 302 on the ground.

The input/output I/F unit 321 of the radio control device 301 shown in FIG. , to the radio control core processing unit 311 .

As shown in FIG. 7, the train operation state management unit 312, from the first train control information acquired by the ground radio device 101, the time (log acquisition date and time), the on-track position of each train, the running direction of each train, each Create a database of train speeds, radio frequency channels used by each train, slot numbers used by each train, etc. The on-track position of each train includes the position of the on-board wireless device 201 .

Although not shown, the train operation state management unit 312 uses the second train control information and the radio wave state monitoring information acquired by the on-board radio device 201 to determine the distance between the ground radio device 101 and the on-board radio device 201 of each train. Create a database of the reception level, the number of missing frames, the number of error corrections, etc. for wireless communication. The radio frequency channel used by each train and the slot number used by each train may be included in the second train control information and the radio wave condition monitoring information instead of the first train control information.

The state learning unit 313 generates basic data including the radio wave state regarding the position of the train based on the database generated by the train operation state management unit 312 . That is, in Embodiment 1, the state learning unit 313 generates basic data based on the first train control information, the second train control information, and the radio wave state monitoring information. The state learning unit 313 may perform various processes in the basic data generation process. Several examples of the processing performed in the basic data generation processing will be described below.

The basic data generation process may include a process of generating an environment variable obtained for each absolute position based on the on-track position and the traveling direction. The basic data generation processing may include statistical processing for obtaining the average, maximum, minimum, variance, median fluctuation, etc. of the reception level, as shown in FIG. As shown in FIG. 9, the basic data generation process is based on the time, train position, train running direction, train running speed, and radio frequency channel used by the train. may include performing statistical processing of the relative position of (distance from the H/O point).

As shown in FIGS. 9 to 11, basic data generation processing includes time, train position, train running direction, train running speed, train radio frequency channel used, number of train frame omissions, and train It may include performing statistical processing of wireless communication quality based on the number of error corrections. Specifically, the state learning unit 313 obtains statistical values such as the reception level, the number of missing frames, and the number of error corrections from the second train control information and the radio wave state monitoring information of the on-board radio device 201, and Processing such as regression may be performed on statistical values. In addition, the state learning unit 313 may perform processing such as regression on correlation information with respect to handover points in addition to the statistical values.

As shown in FIGS. 10 and 11, the basic data generation process is performed when the radio communication quality of one on-board radio device deteriorates, and when another on-board radio device using the same radio frequency channel is on the line. It may include performing statistical processing of position and running direction.

The state learning unit 313 learns handover points and slot numbers based on the basic data. The state learning unit 313 according to the first embodiment learns a model capable of obtaining comprehensive evaluation values of handover points and slot numbers from the basic data.

The handover point estimating unit 314 and the used slot number estimating unit 315 evaluate the basic data generated from the second train control information using a model, and the basic data generated from the radio wave state monitoring information. Compare with the evaluation value obtained using the model.

Then, when the difference between the evaluation values exceeds the threshold, the handover point estimation unit 314 performs control to change the handover point to the one with the higher evaluation value out of the second train control information and the radio wave state monitoring information. Generate information. Similarly to the handover point estimation unit 314, the used slot number estimation unit 315 selects the slot with the higher evaluation value out of the second train control information and the radio wave condition monitoring information when the difference in the evaluation values exceeds the threshold. Generate control information to change to number.

The control information is transmitted to the ground radio device 101, the on-board radio device 201 and the like by the input/output I/F unit 321 and the like. As a result, a handover point and a slot number with good wireless communication quality are notified from the past statistical information.

The model storage unit 331 stores the basic data and the model that is the learning result of the state learning unit 313 .

<Summary of Embodiment 1>
According to the radio train control system according to the first embodiment as described above, based on the basic data including the radio wave state between the standby radio device 121 and the ground radio device 101 regarding the position of the train, Learn handover points. According to such a configuration, appropriate handover can be performed in accordance with changes in the radio environment. Further, according to the first embodiment, since the slot number is learned based on the basic data, an appropriate handover can be performed according to changes in the radio environment. As a result of the above, co-wave interference and the like can be suppressed, and realization of safe and stable transportation and reduction of operation and maintenance costs can be expected.

<Modification 1-1>
In Embodiment 1, one on-board wireless device 201 is provided for one train, but two on-board wireless devices 201 may be provided for one train. In this case, for example, of the two on-board radio devices 201, the on-board radio device 201 in front of the vehicle is used as a working radio device, and the on-board radio device 201 in the rear of the vehicle is used as a backup radio device. good too.

<Modification 1-2>
In Embodiment 1, the state learning unit 313 generates basic data based on the first train control information, the second train control information, and the radio wave state monitoring information, but the present invention is not limited to this. For example, the state learning unit 313 may generate basic data based on the first train control information and the radio wave state monitoring information.

In this case, the handover point estimating unit 314 and the used slot number estimating unit 315 use the evaluation value obtained by using the model for the basic data generated from the current radio wave state monitoring information, and the past radio wave state monitoring information. The basic data generated from is compared with the evaluation value obtained using the model. When the difference in the evaluation values exceeds the threshold, the handover point estimation unit 314 changes the handover point to the one with the higher evaluation value out of the current radio wave state monitoring information and the past radio wave state monitoring information. Generates control information for Similarly to the handover point estimation unit 314, the used slot number estimation unit 315, when the difference between the evaluation values exceeds the threshold, determines whether the evaluation value of the current radio wave condition monitoring information and the past radio wave condition monitoring information is Generate control information to change to a higher slot number.

<Modification 1-3>
The state learning unit 313 learns a model capable of obtaining comprehensive evaluation values of handover points and slot numbers from the basic data, but is not limited to this. For example, the state learning unit 313 may learn, based on the basic data, a model that takes the basic data as input and outputs several sets of handover points and slot numbers.

In this case, the handover point estimator 314 and the used slot number estimator 315 select a set of handover points and slot numbers satisfying a certain level among several sets of handover points and slot numbers output from the model. Control to change. With such a configuration, the handover point estimator 314 and the used slot number estimator 315 can control the handover point and slot number based only on the learning result of the state learning section 313 .

<Modification 1-4>
In Embodiment 1, the position of the train is acquired by the ground radio device 101 as the first train control information, but the information is not limited to this. For example, the position of the train may be acquired by the on-board wireless device 201 or may be acquired by a device other than the ground wireless device 101 and the on-board wireless device 201 . Also, when the position of the train is acquired by the on-board radio equipment 201, the radio wave state monitoring information is, in the same way as the basic data, the information between the standby radio equipment 221 and the ground radio equipment 101 regarding the position of the train. information including the radio wave state of

<Embodiment 2>
FIG. 12 is a diagram schematically illustrating the configuration of a radio train control system to which the radio communication control system and radio communication control method according to the second embodiment are applied. Hereinafter, among the constituent elements according to the second embodiment, constituent elements that are the same as or similar to the above-described constituent elements are denoted by the same or similar reference numerals, and different constituent elements will be mainly described.

The radio train control system according to the second embodiment includes a ground system clock generator 401 in addition to the configuration shown in FIG. 1 of the first embodiment. The clock generation device 401 is provided on the ground, and generates a timing signal (time synchronization information) as frame timing for the ground radio devices 101, 102, and 103 to synchronize (synchronize) radio frame timings.

FIG. 13 is a diagram schematically exemplifying the configuration of the ground radio equipment 101 according to the second embodiment to the same extent as FIG. The active system radio 111 and the standby system radio 121 of the terrestrial radio equipment 101 in FIG.

Time synchronization units 114 and 124 receive timing signals delivered from clock generator 401 via terrestrial network 303 . The time synchronization units 114 and 124 generate start timings of radio frames for the transmission/reception units 112 and 122, respectively, based on the timing signal. The radio frame transmission timing referred to here is substantially the same as the radio frame transmission timing and the slot timing.

<Action>
Clock generator 401 generates a timing signal based on GPS (Global Positioning System) information, and transmits it to terrestrial wireless devices 101 , 102 , 103 via terrestrial network 303 .

Time synchronization units 114 and 124 of terrestrial radio equipment 101 shown in FIG. Control units 113 and 123 generate the timing of each slot based on the start timing from time synchronization units 114 and 124, and transmission/reception units 112 and 122 transmit radio signals based on the timing. As a result, the radio frame timings of the transmitting/receiving sections 112 of the terrestrial radio apparatuses 101, 102, and 103 are aligned, and the radio frame timings of the transmitting/receiving sections 122 of the terrestrial radio apparatuses 101, 102, and 103 are aligned.

Train operation state management unit 312 of radio control device 301 shown in FIG. A database of information such as the location of each train, the running direction of each train, the running speed of each train, the radio frequency channel used by each train, and the slot number used by each train is created.

State learning section 313 generates basic data and learns handover points and slot numbers, as in the first embodiment.

The handover point estimating unit 314 and the used slot number estimating unit 315, in the same manner as in Embodiment 1, use the evaluation value obtained by using the model for the basic data generated from the second train control information and the radio wave state monitoring unit. Basic data generated from information is compared with an evaluation value obtained using a model. Note that when several terrestrial radio devices 101 use the same radio frequency channel, the evaluation value of the slot numbers not used by those devices is higher than the evaluation value of the slot numbers used by those devices. Training of the model may be performed such that

When the difference in the evaluation values exceeds the threshold, the handover point estimation unit 314 provides control information for changing to the handover point with the higher evaluation value out of the second train control information and the radio wave state monitoring information. Generate. Similarly to the handover point estimation unit 314, the used slot number estimation unit 315 selects the slot with the higher evaluation value out of the second train control information and the radio wave condition monitoring information when the difference in the evaluation values exceeds the threshold. Generate control information to change to number.

The control information is transmitted to the ground radio device 101, the on-board radio device 201 and the like by the input/output I/F unit 321 and the like. As a result, a handover point and a slot number with good wireless communication quality are notified from the past statistical information.

<Summary of Embodiment 2>
According to the radio train control system according to the second embodiment as described above, the frame timing for synchronizing the timing at which the ground radio devices 101, 102, and 103 transmit radio signals is generated by the clock provided on the ground. It is generated by device 401 . According to such a configuration, it is possible to align the slot timings of the terrestrial radio apparatuses 101, 102, and 103, so slot allocation with suppressed co-wave interference is possible. In addition, by implementing this function in the system, it is possible not only to suppress the occurrence of co-wave interference, but also to stabilize train transportation.

<Modification 2-1>
In Embodiment 2, the clock generator 401 generates the timing signal based on GPS (Global Positioning System) information, but it is not limited to this. For example, the clock generator 401 may generate a timing signal based on the clock of a PTP (Precision Time Protocol) grandmaster.

It should be noted that it is possible to freely combine each embodiment and each modification, and to modify or omit each embodiment and each modification as appropriate.

The above description is, in all aspects, illustrative and not restrictive. It is understood that innumerable variations not illustrated can be envisaged.

101, 102, 103 ground radio equipment, 111, 121 radio equipment, 201, 202 on-board radio equipment, 301 radio control equipment, 312 train operation state management unit, 313 state learning unit, 314 handover point estimation unit, 315 use slot number estimator.

Claims (6)

a plurality of ground radio devices provided on the ground along the train tracks;
an on-board radio device provided on the train, including a working radio device and a backup radio device, and acquiring a radio wave state between the backup radio device and the ground radio device;
A radio control device provided on the ground and capable of communicating with the plurality of ground radio devices and the on-vehicle radio device,
The radio control device
Learning for learning a handover point, which is a point at which handover is performed between the active radio device and the plurality of ground radio devices, based on the basic data including the radio wave state regarding the position of the train. Department and
a control unit that controls the handover point based on the learning result of the learning unit. The wireless communication control system according to claim 1,
The learning unit
Based on the basic data, learning the slot number used between the active radio device and the plurality of terrestrial radio devices,
The control unit
A wireless communication control system that controls the slot number based on the learning result of the learning unit. The wireless communication control system according to claim 1 or claim 2,
A radio communication control system further comprising a clock generator provided on the ground and generating frame timing for synchronizing timing of radio frames of the plurality of terrestrial radio devices. The wireless communication control system according to claim 1 or claim 2,
The learning unit
generating the basic data based on train control information acquired by the ground radio device and radio wave state monitoring information acquired by the on-board radio device and including the radio wave state;
The basic data generation process includes:
Statistically processing the relative positions of the handover point and the position of the train based on the time, the position of the train, the direction of travel of the train, the speed of the train, and the radio frequency channel used by the train. A wireless communication control system, including: The wireless communication control system according to claim 1 or claim 2,
The learning unit
generating the basic data based on train control information acquired by the ground radio device and radio wave state monitoring information acquired by the on-board radio device and including the radio wave state;
The basic data generation process includes:
Based on the time, the position of the train, the running direction of the train, the running speed of the train, the radio frequency channel used by the train, the number of missing frames of the train, and the number of error corrections of the train, radio communication quality A wireless communication control system, including performing statistical processing. A wireless communication control method for a wireless communication control system,
The wireless communication control system is
a plurality of ground radio devices provided on the ground along the train tracks;
an on-board radio device provided on the train, including a working radio device and a backup radio device, and acquiring a radio wave state between the backup radio device and the ground radio device;
A radio control device provided on the ground and capable of communicating with the plurality of ground radio devices and the on-vehicle radio device,
A handover point at which the radio control device performs handover between the working radio device and the plurality of ground radio devices based on the basic data including the radio wave state regarding the position of the train. Do point learning,
A radio communication control method, wherein the radio control device controls the handover point based on a learning result that is a result of the learning.

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