A wireless communication method, system and related components for a maglev vehicle

Abstract

The present application discloses a wireless communication method, system, device, maglev train and computer-readable storage medium for maglev train-to-ground, which are applied to a terminal. The wireless communication method for maglev train-to-ground includes: collecting real-time positioning data of the train according to a collection cycle; when the current moment is a preset sending moment, performing the following steps: the MAC layer reserves resources in the composed MAC PDU, and sends the MAC PDU to the PHY layer; the PHY layer adds the real-time positioning data of the train collected in the collection cycle closest to the current moment to the resources of the MAC PDU, obtains uplink data, and sends the uplink data to the base station, so that the base station parses the real-time positioning data of the train from the uplink data and transmits it to the ground equipment. The present application can meet the requirement that the transmission delay of the real-time positioning data of the maglev train is not more than 5ms.

Description

Technical Field

[0001] The present application relates to the field of maglev trains, and in particular to a wireless communication method, system and related components for maglev trains. Background Art

[0002] The maglev train-to-ground wireless communication system is a bridge for information exchange between the train and the ground, and is the only channel for transmitting information between the on-board terminal and the ground base station equipment. The maglev train runs at a high speed, reaching 600 kilometers per hour. Under high-speed operation, the vehicle and the ground are bidirectionally transmitted in real time through the train-to-ground wireless communication system. The information transmitted between the train and the ground includes operation control system data, traction system data, diagnostic data, voice information and passenger information.

[0003] The high-speed maglev traction system has high requirements for the real-time and reliability of train positioning information, and requires that the delay of train positioning data transmission should not exceed 5ms. However, in the existing standard LTE system, when sending real-time train positioning data, the RLC layer of the on-board terminal equipment must first send a resource scheduling request, and after receiving the authorization sent by the MAC layer of the base station, send the corresponding real-time train positioning data at the authorized resource location. This traditional communication method takes more than 10ms for the entire process, which cannot meet the 5ms delay requirement of the high-speed maglev traction system.

[0004] Therefore, how to provide a solution to the above technical problems is a problem that those skilled in the art need to solve at present. Summary of the invention

[0005] The purpose of the present application is to provide a maglev train-ground wireless communication method, system, device, maglev train and computer-readable storage medium, which can meet the requirement that the real-time positioning data transmission delay of the maglev train is no more than 5ms.

[0006] In order to solve the above technical problems, the present application provides a wireless communication method for a maglev vehicle, which is applied to a terminal. The wireless communication method for a maglev vehicle includes:

[0007] Collect real-time train positioning data according to the collection cycle;

[0008] When the current time is the preset sending time, perform the following steps:

[0009] The MAC layer reserves resources in the composed MAC PDU and sends the MAC PDU to the PHY layer;

[0010] The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, obtains uplink data, and sends the uplink data to the base station so that the base station can parse the real-time train positioning data from the uplink data and transmit it to the ground equipment.

[0011] Optionally, the PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, and the process of obtaining uplink data includes:

[0012] The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, performs coding and modulation operations on the MAC PDU, and obtains uplink data.

[0013] Optionally, the process of sending the uplink data to the base station includes:

[0014] The uplink data is sent to the base station via the air interface.

[0015] Optionally, the process of the base station parsing the real-time train positioning data from the uplink data and transmitting the data to the ground equipment includes:

[0016] After determining that the uplink data is correct, the MAC layer of the base station parses the real-time positioning data of the train from the uplink data and transmits the data to the ground equipment.

[0017] Optionally, the wireless communication method of the maglev vehicle further includes:

[0018] When receiving the uplink retransmission authorization information sent by the base station, a data retransmission operation is performed, wherein the base station sends the uplink retransmission authorization information when determining that the uplink data is erroneous.

[0019] Optionally, the collection time of each collection cycle is before the preset sending time.

[0020] In order to solve the above technical problems, the present application also provides a wireless communication system for a maglev vehicle, which is applied to a terminal side. The wireless communication system for a maglev vehicle includes:

[0021] A collection module is used to collect real-time train positioning data according to a collection cycle;

[0022] The data transmission module is used to perform the following steps when the current time is the preset sending time:

[0023] The MAC layer reserves resources in the composed MAC PDU and sends the MAC PDU to the PHY layer;

[0024] The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, obtains uplink data, and sends the uplink data to the base station so that the base station can parse the real-time train positioning data from the uplink data and transmit it to the ground equipment.

[0025] In order to solve the above technical problems, the present application also provides a wireless communication device for a maglev vehicle, which is applied to a terminal side and includes:

[0026] Memory for storing computer programs;

[0027] The processor is used to implement the steps of the wireless communication method for a maglev vehicle as described in any one of the above when executing the computer program.

[0028] In order to solve the above technical problems, the present application also provides a maglev train, comprising the wireless communication device for the maglev train as described above.

[0029] To solve the above technical problems, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the wireless communication method for a maglev vehicle are implemented as described in any one of the above.

[0030] The present application provides a method for wireless communication between a maglev train and a ground station, wherein the terminal side and the base station negotiate to send the real-time positioning data of the train on a fixed time-frequency resource. After the terminal side collects the real-time positioning data of the train, the real-time positioning data of the train does not pass through the RLC layer and the MAC layer of the terminal side, and the data packetization is completed directly at the PHY layer at the negotiated preset sending time, thus avoiding the delay introduced by the resource scheduling request authorization in the prior art, thereby meeting the requirement that the transmission delay of the real-time positioning data of the maglev train is not greater than 5ms. The present application also provides a wireless communication system, device, maglev train and computer-readable storage medium for a maglev train and a ground station, which have the same beneficial effects as the wireless communication method for a maglev train and a ground station. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A flowchart of the steps of a wireless communication method for a maglev vehicle provided in the present application;

[0033] Figure 2A schematic diagram of uplink data delay provided by this application;

[0034] Figure 3 A flow chart of uplink data transmission provided by this application;

[0035] Figure 4 This is a schematic structural diagram of a wireless communication system for a maglev vehicle provided in this application. DETAILED DESCRIPTION

[0036] The core of the present application is to provide a maglev train-ground wireless communication method, system, device, maglev train and computer-readable storage medium, which can meet the requirement that the real-time positioning data transmission delay of the maglev train is no more than 5ms.

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Please refer to Figure 1 , Figure 1 A flow chart of the steps of a wireless communication method for a maglev vehicle provided in the present application, the wireless communication method for a maglev vehicle comprising:

[0039] S101: Collecting real-time train positioning data according to a collection cycle;

[0040] Specifically, the terminal side collects the real-time positioning data of the train according to a pre-set collection period, and the collection period can be set to 20ms. In this application, a special transmission channel is constructed for the real-time positioning data of the train. After the terminal side collects the real-time positioning data of the train and packages it according to the interface protocol, it is directly submitted to the PHY layer (physical layer) for transmission without passing through the RLC layer (radio link control layer) and MAC layer (media access control layer), saving processing delay.

[0041] Of course, the collection period can also be set to other values, which can be selected according to actual engineering needs, and this application does not make specific limitations here.

[0042] S102: Determine whether the current time is the preset sending time, if so, execute S103 and S104 in sequence;

[0043] S103: The MAC layer reserves resources in the composed MAC PDU and sends the MAC PDU to the PHY layer;

[0044] Specifically, the terminal side and the base station pre-agree on a fixed preset sending time, the MAC layer performs scheduling in the existing manner, obtains the data to be sent from the RLC layer, and forms a MAC PDU (Protocol Data Unit). When the current moment does not reach the agreed preset sending time, the MAC PDU is directly sent to the PHY layer. When the current moment reaches the agreed preset sending time, resources are reserved in the formed MAC PDU, and then the MAC PDU with reserved resources is sent to the PHY layer. The reservation method is as follows: a fixed length is reserved in the data to be sent for the PHY layer to fill in the information related to the real-time positioning data of the sending train, that is, the actual length of the MAC PDU data sent is the length of the entire TB block minus the fixed length reserved for the PHY layer.

[0045] S104: The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, obtains the uplink data, and sends the uplink data to the base station so that the base station can parse the real-time train positioning data from the uplink data and transmit it to the ground equipment.

[0046] Specifically, when the PHY layer receives the uplink data sending request scheduled by the MAC layer, it fills the most recently collected real-time train positioning data into the resources reserved when the MAC PDU is sent to the PHY layer, performs a series of PHY layer processing such as unified coding and modulation, obtains the processed uplink data, and then transmits the uplink data to the base station through the air interface.

[0047] Furthermore, the MAC layer of the base station receives the correctly decoded uplink data. If it determines that the current time is the agreed preset sending time, it directly parses the real-time train positioning data from the uplink data and sends it to the ground equipment, further improving communication efficiency and reducing latency. If the current time is not the agreed preset sending time, the MAC layer of the base station directly sends the uplink data to the RLC layer of the base station.

[0048] Reference Figure 2 As shown, Figure 2 A schematic diagram of uplink data delay provided in this application, the terminal side collects the real-time positioning data of the train at time t0, and then sends the real-time positioning data of the train at time t1 on the air interface after data packaging and air interface protocol stack processing. The base station PHY layer receives the uplink data at time t2, and sends the uplink data to layer 2 at time t3 after processing by the PHY layer. After processing the uplink data, layer 2 parses the real-time positioning data of the train at time t4 and submits it to the ground equipment. The total delay is t4-t0.

[0049] Among them, t0~t1: includes the process of the terminal forwarding the collected real-time positioning information data of the train to each other, data packaging processing, LTE protocol stack processing, etc.; t1~t2: refers to the wireless signal sent from the terminal physical layer air interface to the base station physical layer air interface, which is transmitted at the speed of light and takes us level time, which can be ignored; t2~t3: base station physical layer processing time; t3~t4: base station layer 2 processing time, the processing delay is 4.8ms, which is less than 5ms, meeting the requirement that the real-time positioning data transmission delay of the maglev train is no more than 5ms.

[0050] It can be seen that in this embodiment, the terminal side and the base station negotiate to send the real-time positioning data of the train on a fixed time-frequency resource. After the terminal side collects the real-time positioning data of the train, the real-time positioning data of the train does not pass through the RLC layer and MAC layer of the terminal side, and the data packetization is completed directly at the PHY layer at the negotiated preset sending time. This avoids the delay introduced by the resource scheduling request authorization in the prior art, thereby meeting the requirement that the real-time positioning data transmission delay of the maglev train is no more than 5ms.

[0051] Based on the above embodiments:

[0052] As an optional embodiment, the wireless communication method of the maglev vehicle further includes:

[0053] When uplink retransmission authorization information sent by the base station is received, a data retransmission operation is performed, wherein the base station sends the uplink retransmission authorization information when determining that the uplink data is erroneous.

[0054] Specifically, refer to Figure 3 As shown, Figure 3 The present application provides an uplink data transmission flow chart, in which the base station MAC layer determines whether the received uplink data is correct based on CRC. If correct, ACK feedback is given, and the real-time positioning data of the train is delivered to the ground equipment at the same time. If wrong, NACK feedback is given and uplink retransmission scheduling is performed, and uplink retransmission authorization information is given. The base station MAC layer sends ACK / NACK and uplink retransmission authorization information of the erroneous data to the base station PHY layer. The base station PHY layer sends ACK / NACK and uplink retransmission authorization information of the erroneous data to the terminal side PHY layer through the air interface. The terminal side PHY layer sends ACK / NACK and uplink retransmission authorization information of the erroneous data to the MAC layer. If the MAC layer receives ACK, HARQ is performed and its cache is cleared. If NACK is received, data retransmission is arranged according to the uplink retransmission authorization information or the original transmission authorization information.

[0055] As an optional embodiment, the collection time of each collection cycle is before the preset sending time.

[0056] Specifically, the collection trigger time is determined by the terminal side. Therefore, the collection time can be set before the preset sending time. Assuming that the terminal side and the base station agree that when transmitting data, the preset sending time corresponds to the time of sending the third uplink subframe, then a certain time before the third uplink subframe can be selected as the collection trigger time. The sending time and the collection time should be as close as possible to ensure the validity of the real-time positioning data of the train sent to the ground equipment.

[0057] Please refer to Figure 4 , Figure 4 A structural diagram of a wireless communication system for a maglev vehicle provided in the present application, which is applied to a terminal side, and the wireless communication system for a maglev vehicle includes:

[0058] Collection module 1, used to collect real-time train positioning data according to the collection cycle;

[0059] The data transmission module 2 is used to perform the following steps when the current time is the preset sending time:

[0060] The MAC layer reserves resources in the composed MAC PDU and sends the MAC PDU to the PHY layer;

[0061] The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, obtains the uplink data, and sends the uplink data to the base station so that the base station can parse the real-time train positioning data from the uplink data and transmit it to the ground equipment.

[0062] It can be seen that in this embodiment, the terminal side and the base station negotiate to send the real-time positioning data of the train on a fixed time-frequency resource. After the terminal side collects the real-time positioning data of the train, the real-time positioning data of the train does not pass through the RLC layer and MAC layer of the terminal side, and the data packetization is completed directly at the PHY layer at the negotiated preset sending time. This avoids the delay introduced by the resource scheduling request authorization in the prior art, thereby meeting the requirement that the real-time positioning data transmission delay of the maglev train is no more than 5ms.

[0063] As an optional embodiment, the PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, and the process of obtaining the uplink data includes:

[0064] The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, performs coding and modulation operations on the MAC PDU, and obtains uplink data.

[0065] As an optional embodiment, the process of sending uplink data to the base station includes:

[0066] The uplink data is sent to the base station via the air interface.

[0067] As an optional embodiment, the process of the base station parsing the real-time train positioning data from the uplink data and transmitting it to the ground equipment includes:

[0068] After determining that the uplink data is correct, the MAC layer of the base station parses the real-time positioning data of the train from the uplink data and transmits it to the ground equipment.

[0069] As an optional embodiment, the wireless communication method of the maglev vehicle further includes:

[0070] When uplink retransmission authorization information sent by the base station is received, a data retransmission operation is performed, wherein the base station sends the uplink retransmission authorization information when determining that the uplink data is erroneous.

[0071] As an optional embodiment, the collection time of each collection cycle is before the preset sending time.

[0072] On the other hand, the present application also provides a wireless communication device for a maglev vehicle, applied to a terminal side, comprising:

[0073] Memory for storing computer programs;

[0074] The processor is used to implement the steps of the wireless communication method for a maglev vehicle as described in any one of the above embodiments when executing the computer program.

[0075] Specifically, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer-readable instructions, and the internal memory provides an environment for the operation of the operating system and computer-readable instructions in the non-volatile storage medium. When the processor executes the computer program stored in the memory, the following steps can be implemented: collecting real-time positioning data of trains according to the collection cycle; when the current moment is the preset sending moment, the following steps are executed: the MAC layer reserves resources in the composed MAC PDU, and sends the MAC PDU to the PHY layer; the PHY layer adds the real-time positioning data of trains collected in the collection cycle closest to the current moment to the resources of the MAC PDU, obtains uplink data, and sends the uplink data to the base station, so that the base station parses the real-time positioning data of trains from the uplink data and transmits it to the ground equipment.

[0076] It can be seen that in this embodiment, the terminal side and the base station negotiate to send the real-time positioning data of the train on a fixed time-frequency resource. After the terminal side collects the real-time positioning data of the train, the real-time positioning data of the train does not pass through the RLC layer and MAC layer of the terminal side, and the data packetization is completed directly at the PHY layer at the negotiated preset sending time. This avoids the delay introduced by the resource scheduling request authorization in the prior art, thereby meeting the requirement that the real-time positioning data transmission delay of the maglev train is no more than 5ms.

[0077] As an optional embodiment, when the processor executes the computer subroutine stored in the memory, the following steps can be implemented: the PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, performs coding and modulation operations on the MAC PDU, and obtains uplink data.

[0078] As an optional embodiment, when the processor executes the computer subroutine stored in the memory, the following steps may be implemented: sending the uplink data to the base station through the air interface.

[0079] As an optional embodiment, when the processor executes the computer subroutine stored in the memory, the following steps can be implemented: after determining that the uplink data is correct, the MAC layer of the base station parses the real-time positioning data of the train from the uplink data and transmits it to the ground equipment.

[0080] As an optional embodiment, when the processor executes the computer subroutine stored in the memory, the following steps can be implemented: when receiving uplink retransmission authorization information sent by the base station, performing a data retransmission operation, wherein the base station sends uplink retransmission authorization information when determining that the uplink data is erroneous.

[0081] As an optional embodiment, when the processor executes the computer subroutine stored in the memory, the following steps may be implemented: configuring the collection time of each collection cycle to be before the preset sending time.

[0082] Based on the above embodiment, as a preferred implementation, the wireless communication device of the maglev vehicle further includes:

[0083] The input interface is connected to the processor and is used to obtain externally imported computer programs, parameters and instructions, and save them to the memory under the control of the processor. The input interface can be connected to an input device to receive parameters or instructions manually input by the user. The input device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the terminal housing.

[0084] The display unit is connected to the processor and is used to display the data sent by the processor. The display unit can be a liquid crystal display or an electronic ink display.

[0085] The network port is connected to the processor and is used to communicate with external terminal devices. The communication technology used for the communication connection can be a wired communication technology or a wireless communication technology, such as mobile high-definition link technology (MHL), universal serial bus (USB), high-definition multimedia interface (HDMI), wireless fidelity technology (WiFi), Bluetooth communication technology, low-power Bluetooth communication technology, communication technology based on IEEE802.11s, etc.

[0086] On the other hand, the present application also provides a maglev train, comprising the wireless communication device for the maglev train as described above.

[0087] For an introduction to a maglev train provided in the present application, please refer to the above-mentioned embodiment, and the present application will not elaborate on it here.

[0088] The maglev train provided in the present application has the same beneficial effects as the wireless communication method for the maglev train described above.

[0089] On the other hand, the present application further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the wireless communication method for a maglev vehicle as described in any one of the above embodiments are implemented.

[0090] Specifically, the present application also provides a computer-readable storage medium, which may include: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes. The storage medium stores a computer program, and when the computer program is executed by the processor, the following steps are implemented: collecting real-time train positioning data according to the collection cycle; when the current moment is the preset sending moment, the following steps are performed: the MAC layer reserves resources in the composed MAC PDU, and sends the MAC PDU to the PHY layer; the PHY layer adds the real-time train positioning data collected in the collection cycle closest to the current moment to the resources of the MAC PDU, obtains uplink data, and sends the uplink data to the base station, so that the base station parses the real-time train positioning data from the uplink data and transmits it to the ground equipment.

[0091] It can be seen that in this embodiment, the terminal side and the base station negotiate to send the real-time positioning data of the train on a fixed time-frequency resource. After the terminal side collects the real-time positioning data of the train, the real-time positioning data of the train does not pass through the RLC layer and MAC layer of the terminal side, and the data packetization is completed directly at the PHY layer at the negotiated preset sending time. This avoids the delay introduced by the resource scheduling request authorization in the prior art, thereby meeting the requirement that the real-time positioning data transmission delay of the maglev train is no more than 5ms.

[0092] As an optional embodiment, when the computer subroutine stored in the computer-readable storage medium is executed by the processor, the following steps can be specifically implemented: the PHY layer adds the real-time positioning data of the train collected in the collection period closest to the current moment to the resources of the MAC PDU, performs coding and modulation operations on the MAC PDU, and obtains uplink data.

[0093] As an optional embodiment, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps can be specifically implemented: sending uplink data to the base station through the air interface.

[0094] As an optional embodiment, when the computer subroutine stored in the computer-readable storage medium is executed by the processor, the following steps can be specifically implemented: after the MAC layer of the base station determines that the uplink data is correct, it parses the real-time positioning data of the train from the uplink data and transmits it to the ground equipment.

[0095] As an optional embodiment, when the computer subroutine stored in the computer-readable storage medium is executed by the processor, the following steps can be specifically implemented: when uplink retransmission authorization information sent by the base station is received, a data retransmission operation is performed, wherein the base station sends uplink retransmission authorization information when it determines that the uplink data is erroneous.

[0096] As an optional embodiment, when the computer subroutine stored in the computer-readable storage medium is executed by the processor, the following steps can be specifically implemented: configuring the collection time of each collection cycle to be before the preset sending time.

[0097] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0098] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wireless communication method for a maglev vehicle, characterized in that: Applied to a terminal, the wireless communication method of the maglev vehicle includes: Collect real-time train positioning data according to the collection cycle; At a current time which is a fixed preset sending time negotiated by the terminal and the base station, the following steps are performed: The MAC layer reserves resources in the composed MAC PDU and sends the MAC PDU to the PHY layer; The PHY layer adds the real-time positioning data of the train collected in the collection period closest to the current moment to the resources of the MAC PDU to obtain uplink data, and sends the uplink data to the base station on the fixed time-frequency resources negotiated by the terminal and the base station, so that the base station can parse the real-time positioning data of the train from the uplink data and transmit it to the ground equipment. The real-time positioning data of the train does not pass through the RLC layer and MAC layer of the terminal.

2. The wireless communication method for a maglev vehicle according to claim 1, characterized in that: The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, and the process of obtaining uplink data includes: The PHY layer adds the real-time train positioning data collected in the collection period closest to the current moment to the resources of the MAC PDU, performs coding and modulation operations on the MAC PDU, and obtains uplink data.

3. The wireless communication method for a maglev vehicle according to claim 1, characterized in that: The process of sending the uplink data to the base station on the fixed time-frequency resources negotiated by the terminal and the base station includes: The uplink data is sent to the base station through an air interface on a fixed time-frequency resource negotiated between the terminal and the base station.

4. The wireless communication method for a maglev vehicle according to claim 1, characterized in that: The process of the base station parsing the real-time train positioning data from the uplink data and transmitting the data to the ground equipment includes: After determining that the uplink data is correct, the MAC layer of the base station parses the real-time positioning data of the train from the uplink data and transmits the data to the ground equipment.

5. The wireless communication method for a maglev vehicle according to claim 4, characterized in that: The wireless communication method of the maglev vehicle also includes: When receiving the uplink retransmission authorization information sent by the base station, a data retransmission operation is performed, wherein the base station sends the uplink retransmission authorization information when determining that the uplink data is erroneous.

6. The wireless communication method for a maglev vehicle according to any one of claims 1 to 5, characterized in that: The collection time of each collection cycle is before the preset sending time.

7. A wireless communication system for a maglev vehicle, characterized in that: Applied to the terminal side, the wireless communication system of the maglev vehicle includes: A collection module is used to collect real-time train positioning data according to a collection cycle; The data transmission module is configured to perform the following steps at a fixed preset sending time negotiated by the terminal and the base station at a current time: The MAC layer reserves resources in the composed MAC PDU and sends the MAC PDU to the PHY layer; The PHY layer adds the real-time positioning data of the train collected in the collection period closest to the current moment to the resources of the MAC PDU to obtain uplink data, and sends the uplink data to the base station on the fixed time-frequency resources negotiated by the terminal and the base station, so that the base station can parse the real-time positioning data of the train from the uplink data and transmit it to the ground equipment. The real-time positioning data of the train does not pass through the RLC layer and MAC layer of the terminal.

8. A wireless communication device for a maglev vehicle, characterized in that: Applied to the terminal side, including: Memory for storing computer programs; A processor is used to implement the steps of the wireless communication method for a maglev vehicle according to any one of claims 1 to 6 when executing the computer program.

9. A maglev train, characterized in that: The wireless communication device for a maglev vehicle as claimed in claim 8 is included.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the wireless communication method for a maglev vehicle according to any one of claims 1 to 6 are implemented.

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