CN106257878A

CN106257878A - A kind of in-vehicle wireless communication control method, Apparatus and system

Info

Publication number: CN106257878A
Application number: CN201510339401.4A
Authority: CN
Inventors: 钱浙滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-18
Filing date: 2015-06-18
Publication date: 2016-12-28

Abstract

The present invention provides a kind of in-vehicle wireless communication control method, Apparatus and system, and, network low for the frequency spectrum service efficiency overcoming prior art to exist heavily joins at least one in ability and communication connection these shortcomings of very flexible.Described method includes: obtains the vehicle-mounted net network information and/or travels the network information of trackside radio tracking transmission network；At least one operates: place track identification to use at least one network information described to perform as follows；It is initially accessed control；Radio frequency transmits/receives array gravity treatment and controls；Spatial reuse FREQUENCY CONTROL；Interorbital shares the control of RF node array；The transmission of WAP controls；The transmission sailing controller controls.The Apparatus and system that the present invention is given, has spectrum efficiency high, and fault-tolerance is strong, the advantage of flexible configuration, and the business transmission that can be not only used for passenger can also be used for train driving control.

Description

Vehicle-mounted wireless communication control method, device and system

Technical Field

The invention relates to the field of traffic, in particular to a vehicle-mounted wireless communication control method, device and system.

Background

Currently, high speed railways and subways/metro railways use existing cellular mobile communication networks to provide communication services to passengers. The high-speed railway is characterized by high moving speed and high user density, and the problems caused by the high-speed railway are as follows: the high-speed movement causes the transmission efficiency from the vehicle-mounted terminal to the ground base station to be reduced or causes call drop; the high user density makes it difficult for the capacity of cellular mobile communications to meet the actual demands of the passengers. In the case of subway/urban railway, the transmission efficiency from the vehicle-mounted terminal to the ground base station is reduced to a lesser extent than that of high-speed railway due to the lower moving speed, but the problem that the capacity of cellular mobile communication cannot meet the demand due to the high subscriber density is also obvious, and network congestion occurs during the peak of traffic.

The realization of high-spectrum-efficiency, large-capacity and high-reliability transmission between a vehicle-mounted terminal/access point of a high-speed railway/subway/urban railway and a ground communication network is a goal continuously pursued by the industry in recent years. For this purpose, a method generally adopted by mobile communication operators in networks that provide wireless communication services for high-speed rail passengers is as follows: the base station or the radio frequency far-end antenna is erected along the high-speed rail, the antennas are directional antennas, wave beams of the directional antennas cover the area where the high-speed rail is located, the erection height of the directional antennas is higher than the height of train carriages, the distance between the antennas is hundreds of meters, and the high-power antennas irradiate the train carriages so as to overcome the attenuation of the carriages to signals and realize the direct feeding of the signals to the in-train terminal.

In the patent application field, the industry provides technical solutions from the aspects of improving the performance of the existing single-hop system, changing the single-hop system into a two-hop system, introducing a new transmission/backhaul architecture, and the like.

The industry provides the following technologies in the aspect of improving the performance of the existing single-hop system:

the patent application with the application number of CN201210208080 and the invention name of a downlink communication method and device in a high-speed railway system discloses a method comprising the following steps: a. for each user equipment UE which needs to transmit service data currently in a cell, a network side selects the RRU with the maximum current uplink received signal strength as the RRU for transmitting the service data from all RRUs covering the UE; on the selected RRU, sending the service data to be transmitted currently and a user-specific reference signal DRS corresponding to the service data to the user equipment; on each RRU in the cell, respectively sending the control data to be transmitted to each UE in the cell; b. and the UE respectively carries out frequency offset estimation and compensation and corresponding data detection processing on the data received on the service channel and the control channel. The method can effectively reduce the influence of Doppler frequency offset on the performance of the distributed high-speed rail system.

The following technologies are proposed in the industry in terms of changing a single-hop system into a two-hop system:

the method disclosed by the patent application with the application number of CN201410056605 and the invention name of "a power distribution method under a high-speed rail communication architecture" aims at the communication architecture of the vehicle-mounted mobile base station, and counteracts the influence of Doppler between vehicles and the ground on the system and maximizes the system capacity by distributing the power of the base station and the vehicle-mounted mobile base station under the modulation mode of OFDM. The method mainly comprises the following steps: and establishing a channel capacity function under a high-speed rail vehicle-mounted mobile base station communication framework, optimizing and distributing the transmitting power of the vehicle-mounted mobile base station end, and optimizing and distributing the transmitting power of the base station end. The power distribution method has important significance for system performance optimization under the high-speed railway scene communication architecture.

The industry has proposed the following techniques in terms of introducing a new transport/backhaul architecture:

the system provided by the invention is a high-speed rail wireless communication system based on LTE and a resource allocation method thereof and has the application number of CN 201410469640. The high-speed rail LTE return system is used as a transmission bearer of a data flow return core network of various access networks, provides a transmission channel for various services in a carriage and consists of a TAU, an eNB-R and an EPC-R. And the access system in the carriage is used for accessing 2G, 3G, WLAN and LTE user services and directly interacting with the LTE return system. And the core network comprises 2G, 3G, WLAN and LTE service core networks, is responsible for core processing of corresponding services and directly interacts with the LTE backhaul system. The invention provides a communication system architecture suitable for a high-speed moving scene of a high-speed rail, and provides a specific resource allocation method and a specific implementation scheme on the basis of the communication system architecture, so that the problem of wireless public network communication of various access systems in the high-speed moving scene of the high-speed rail can be effectively solved.

The system disclosed by the invention is a high-speed rail mobile communication system with the application number of CN201010600018 and the name of the working method thereof comprises a vehicle-mounted communication system, a rail line communication system and a ground communication system. The vehicle-mounted communication system comprises a vehicle-mounted base station, a light distribution antenna system and a vehicle-mounted ultrahigh frequency wireless broadband communicator; the vehicle-mounted ultrahigh frequency wireless broadband communicator is in communication connection with the vehicle-mounted base station; and the vehicle-mounted base station forms a vehicle-mounted access network in the carriage through the light distribution antenna system. The rail line communication system comprises a line optical cable, a ground ultrahigh frequency wireless broadband communicator and an optical transmission network, wherein the line optical cable is laid along a rail and used for transmitting communication signaling and communication content; sequentially accessing the ground ultrahigh frequency wireless broadband communicator along the optical cable; the vehicle-mounted ultrahigh frequency wireless broadband communicator is in communication connection with ground ultrahigh frequency wireless broadband communicators corresponding to the ground, and each ground ultrahigh frequency wireless broadband communicator is in communication connection with a corresponding ground communication system through an optical transmission network.

The invention has application number of CN201010600016 and the name of the invention is 'an ultra-soft switching method used in a high-speed rail mobile communication system'

The ultra-soft switching method is used in a high-speed rail mobile communication system, wherein in the high-speed rail mobile communication system, a vehicle-mounted communication system comprises a vehicle-mounted ultrahigh frequency wireless broadband communication system with at least two communication units; the rail line communication system is provided with ground ultrahigh frequency wireless broadband communicators which are sequentially accessed along the rail. The ultra-soft switching method comprises the following steps: in the process that a high-speed rail runs from one ground ultrahigh-frequency wireless broadband communicator to another adjacent ground ultrahigh-frequency wireless broadband communicator, a communication path formed by the communication connection of one communication unit of the vehicle-mounted ultrahigh-frequency wireless broadband communication system and the previous ground ultrahigh-frequency wireless broadband communicator passing through the communication unit is a main communication path, and the rest communication units start to search; after any one of the rest communication units searches for the next ground ultrahigh frequency wireless broadband communicator to pass through, a new communication path is established with the rest communication units to serve as a redundant backup path of the main communication path; the redundant backup path transmits the same content as the primary communication path.

In addition, a method for acquiring fault data of a railway communication system is also disclosed in the field of patent application, for example, the method disclosed by the patent application with the application number of CN201310483146 and the invention name of "a method for acquiring and processing fault data during safe production of a railway communication section" comprises the following steps: 1) the state monitoring module collects signals of the communication section in real time and transmits the signals to the central control module; 2) the central control module judges whether the signal is abnormal or not, if so, the central control module sends a starting signal to the fault recording module, starts the fault recording module, executes the step 3), and simultaneously sends alarm information; 3) the fault recording module collects fault data and fault occurrence time; 4) the central control module judges whether the fault is eliminated according to the communication segment signals received in real time, and if so, the fault recording module is started to record the fault ending time; 5) the fault logging module generates a fault data report. Compared with the prior art, the method has the advantages of recording fault data in real time, improving the stability and safety of railway communication and the like.

In summary, although the conventional technology for communicating with the vehicle-mounted terminal in the two-hop manner or the backhaul network along the track overcomes the disadvantage of car attenuation, the communication capacity between the train and the ground network is limited by the available bandwidth of the mobile communication system, and the spectral efficiency is limited by the doppler shift between the vehicle-mounted relay/base station and the ground base station. The application number is CN201010600018, the invention is a high-speed rail mobile communication system and a working method thereof, and a rail identification method, a transmission link establishment method, an array reselection method for uninterrupted transmission and a method for improving the spectrum use efficiency which meet the requirements of a high-speed rail/subway system are not provided; the application number is CN201010600016, the invention name is 'an ultra-soft switching method used in a high-speed rail mobile communication system', the signaling control is relatively complex and the time delay is large.

In summary, the prior art has the disadvantages of low spectrum utilization efficiency, poor network reconfiguration capability and poor communication connection flexibility.

Disclosure of Invention

The invention provides a vehicle-mounted wireless communication control method, device and system, which are used for overcoming at least one of the defects of low frequency spectrum use efficiency, poor network reconfiguration capability and poor communication connection flexibility in the prior art.

The invention provides a vehicle-mounted wireless communication control method, which comprises the following steps:

acquiring network information of a vehicle-mounted network and/or network information of a wireless tracking transmission network on a running rail side;

performing at least one of the following using the at least one network information:

identifying the track where the vehicle-mounted radio frequency unit is located;

initial access control from the vehicle-mounted radio frequency unit to the running rail side wireless tracking transmission network;

the radio frequency receiving/transmitting array reselection control from the vehicle-mounted radio frequency unit to the wireless tracking transmission network on the running rail side;

controlling the spatial multiplexing frequency among the vehicle-mounted radio frequency units;

inter-track sharing RF Controlling the node array;

controlling transmission from the vehicle-mounted radio frequency unit to the vehicle-mounted wireless access point;

controlling transmission from the vehicle-mounted radio frequency unit to the vehicle-mounted running controller;

wherein,

the wireless tracking transmission network on the side of the running rail comprises a linear radio frequency receiving/transmitting array which is arranged in at least one of a road shoulder area, a track bed area and two rail interval areas along the extension direction of a rail and comprises communication antenna units, wherein the arrangement distance of the communication antenna units is 1-100 m, and the arrangement height of the communication antenna units is lower than the height of train windows;

the vehicle-mounted radio frequency unit is a radio signal transmitting and/or receiving unit facing the wireless tracking transmission network, and is used for establishing a radio transmission channel and/or positioning/orienting between the vehicle-mounted network and the wireless tracking transmission network.

The invention provides a vehicle-mounted wireless communication control device, which comprises:

the network information acquisition module and the communication control module; wherein,

the network information acquisition module is used for acquiring vehicle-mounted network information and/or network information of a running rail side wireless tracking transmission network, and comprises a vehicle-mounted network information acquisition submodule and/or a running rail side wireless tracking transmission network information acquisition submodule;

the communication control module is used for at least one of the following operations:

control of inter-track shared RF node arrays;

the communication control module comprises at least one of the following sub-modules:

the track identification submodule where the vehicle-mounted radio frequency unit is located;

an initial access control submodule from the vehicle-mounted radio frequency unit to the running rail side wireless tracking transmission network;

a radio frequency receiving/transmitting array reselection control submodule from the vehicle-mounted radio frequency unit to the running rail side wireless tracking transmission network;

a space multiplexing frequency control submodule among the vehicle-mounted radio frequency units;

a control submodule of the inter-track shared RF node array;

a transmission control sub-module from the vehicle-mounted radio frequency unit to the vehicle-mounted wireless access point;

and the transmission control submodule from the vehicle-mounted radio frequency unit to the vehicle-mounted running controller.

The invention provides a vehicle-mounted wireless communication control system, which comprises:

the system comprises a vehicle-mounted wireless communication control node, a vehicle-mounted radio frequency unit node and a vehicle-mounted wireless access point, wherein the vehicle-mounted wireless communication control node is composed of a vehicle-mounted wireless communication control device; wherein,

the vehicle-mounted radio frequency unit node is used for establishing a transmission channel between a vehicle-mounted wireless access point and/or other vehicle-mounted communication nodes and a radio frequency receiving/transmitting array on the track side/driving track side; or, the positioning/orientation signal is sent to the radio frequency receiving/sending array on the track side/the running track side; the vehicle-mounted radio frequency unit comprises a communication antenna unit or a combination of the communication antenna unit and a positioning antenna unit and/or a directional antenna unit, wherein the communication antenna unit can be used for transmitting directional/positioning signals, and the positioning antenna unit and the directional antenna unit are the same or different antenna units;

the vehicle-mounted wireless access point is used for establishing a transmission channel between a vehicle-mounted mobile terminal or other vehicle-mounted communication nodes and a radio frequency receiving/transmitting array on the track side/driving track side, and comprises an antenna unit and a radio frequency channel module;

the method, the device and the system provided by the embodiment of the invention overcome at least one of the defects of low spectrum utilization efficiency, poor network reconfiguration capability and poor communication connection flexibility in the prior art, have the advantages of high spectrum efficiency, strong fault tolerance and flexible configuration, can quickly and reliably realize track identification, transmission link establishment and radio frequency transceiving/array reselection, can obviously improve the spectrum utilization efficiency, can be used for both passenger service transmission and train running control, and can obviously improve the running safety and the running density of railways/subways.

Drawings

Fig. 1 is a flowchart of a method for controlling vehicle-mounted wireless communication according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a layout of a RF transceiver array on a side of a running rail according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a layout of a RF transceiver array on a side of a running rail according to an embodiment of the present invention;

fig. 4 is a schematic composition diagram of a vehicle-mounted wireless communication control device according to an embodiment of the present invention.

Examples of the invention

The vehicle-mounted wireless communication control method, the device and the system provided by the embodiment of the invention overcome at least one of the defects of low spectrum use efficiency, poor network reconfiguration capability and poor communication connection flexibility in the prior art.

Two problems faced by high-speed rail/subways are: the communication flow demand of passengers in the vehicle is large, and the existing communication system can not meet the flow demand of the passengers accessing a data network and generates network congestion; the transport capacity of high-speed rails/subways cannot meet the demand, and the transport capacity needs to be increased by increasing the running density of train workshops of the high-speed rails/subways during the transportation peak; in order to avoid network congestion caused by internet access of passengers in the train, the transmission throughput of terminals in the high-speed rail/subway train needs to be improved, and in order to improve the transport capacity of the existing rail transit, a more reliable and accurate train control mode needs to be provided so as to overcome the limitation of the existing operation system on reduction of the train operation interval and the operation speed.

The technical idea for improving the transmission throughput of the terminal in the high-speed rail/subway train provided by the invention comprises the following steps: the method comprises the following steps of adopting a running rail side wireless tracking transmission mode to transmit data streams to a vehicle-mounted communication network in a short distance mode, and adopting a space division multiplexing frequency mode to carry out wireless transmission on vehicle-mounted wireless units deployed on different carriages among the different carriages in order to effectively use wireless frequency spectrums; the wireless tracking transmission network on the running rail side comprises an optical transmission sub-network facing a vehicle and a control sub-network controlling the optical transmission sub-network, wherein the optical transmission sub-network facing the vehicle comprises a transmission light path facing the vehicle/vehicle-mounted radio frequency unit, and the transmission light path facing the vehicle/vehicle-mounted radio frequency unit realizes tracking transmission of the vehicle-mounted radio frequency unit through proper light path configuration/switching; the control subnet for controlling the optical transmission subnet is used for controlling the transmission light path facing the vehicle/vehicle-mounted radio frequency unit, and comprises an optical switch, an RF receiving/transmitting unit and a position information measuring unit which are related to the transmission light path facing the vehicle/vehicle-mounted radio frequency unit.

The communication demand of high-speed rail/subway passengers is characterized in that the traffic demand is high due to the high user density, when 100 passengers exist in each carriage of the high-speed rail/subway passengers, if a transmission rate of 10Mbps is provided for each passenger, a transmission rate of 1Gbps is required, for the high-speed rail/subway with 8 carriages in one train, a data rate of 8Gbps needs to be provided for the inside of the vehicle, and for the high-speed rail/subway with 16 carriages in one train, a data rate of 16Gbps needs to be provided for the inside of the vehicle. The transmission of data between the vehicle-mounted radio unit and the radio transmitting/receiving array on the track side via the radio interface at 8/16Gbps requires a radio spectrum width of 8/16GHz, and such a large spectrum is difficult to obtain. One way to reduce the demand for spectrum bandwidth is to multiplex the spectrum between different cars, using the spectrum in a space-division-served manner between cars, thereby achieving 8/16Gbps transmission rates with a narrower spectrum bandwidth; in the spatial multiplexing spectrum mode, the 1Gbps transmission rate required by one car needs to use 1GHz spectrum width. The method, the device and the system for the wireless tracking transmission at the running rail side can use the frequency spectrum of a plane licensed frequency band, can also use the frequency spectrum licensed/planned to other systems in a space division multiplexing mode, or plan out a frequency band required by high-speed rail/subway communication/control from a frequency band above 6 GHz; one spectrum usage approach for the trackside wireless tracking transmission presented in this embodiment is to share the spectrum with the uplink (ground-to-satellite) frequency of the satellite communication system, and the satellite bands that can be used for sharing include: satellite communication uplink frequency band on the C wave band is 5925-6425 MHz, and the bandwidth is 500 MHz; 5850-7075 MHz,1225MHz bandwidth; 29.5-30 GHz and 500MHz bandwidth; using a first part of the satellite uplink spectrum for a transmission frequency band of the driving rail side radio frequency receiving/transmitting array to the vehicle-mounted radio frequency unit, and using a second part of the satellite uplink spectrum for a frequency band received by the driving rail side radio frequency receiving/transmitting array from the vehicle-mounted radio frequency unit;

the millimeter wave frequency band can also be used as a frequency spectrum for wireless tracking transmission on the running rail side, and more available continuous frequency bands exist in the frequency spectrum range of 40 GHz-60 GHz or 60 GHz-90 GHz.

To facilitate understanding of the embodiments, the concepts and terms related to the present invention will be described first:

unit interval: a basic length section forming a strip/line-shaped coverage area, wherein the section length of the section along the extending direction of the track is 1-100 meters, one unit section corresponds to at least one antenna unit for communication, the electromagnetic wave radiated by the antenna unit for communication covers the section length, and the receiving and sending of the adjacent antenna units for communication can be independently controlled; the multiple unit sections are sequentially arranged in the track extending direction to form a strip-shaped/linear coverage area, and correspondingly, the multiple communication antenna units are sequentially arranged in the track extending direction to form a linear radio frequency receiving/transmitting array; typically, the length of the unit interval is 1-5 m; preferably, the length of the unit interval is 2 meters;

an RF node: one RF node corresponds to one or more radio frequency transmitting/receiving units, one radio frequency transmitting/receiving unit corresponds to one or more communication antenna units, and one or more communication antenna units correspond to one unit interval; the RF node controls a radio frequency receiving/transmitting unit to feed radio frequency signals to the communication antenna units corresponding to the unit intervals; and/or, the RF node controls the radio frequency receiving/transmitting unit to receive radio frequency signals from the communication antenna units corresponding to the unit intervals; typically, an RF node includes 1-10 communication RF transceiver units for RF transceiver control between 1-10 units; more typically, an RF node includes 4 communication RF transmitting/receiving units, which are used for RF transmitting/receiving control between 4 units;

train-level unit section group: one train-level unit interval group comprises 1-512 unit intervals; typically, one train-level unit interval group comprises 128-256 unit intervals, the corresponding coverage distance is 256 meters to 512 meters, and the length of the unit interval is 2 meters; the covering distance of the train-level unit interval group is the length level of the train, and when the covering distance of the unit interval group is 256/512 meters, the length of the unit interval group is equivalent to the length of a high-speed rail or subway train consisting of 8/16 carriages;

an RF node controller: controlling 1-128 RF nodes by one RF node controller for control nodes of RF nodes corresponding to the train-level unit interval group; preferably, one RF node controller controls 32-64 RF nodes for control;

block section level unit section group: one block section level unit section group comprises 2-32 unit section groups, and the corresponding coverage distance is 0.5-30 km; typically, one train-level unit interval group comprises 2-16 train-level unit interval groups, and the corresponding coverage distance is between 1 km and 16 km; the covering distance of the block section level unit section group is equivalent to the length of a block section (the distance between the safe running distances of the trains) of the trains (high-speed rails or subways);

optical routing controller node: a node for performing optical path allocation to the train-level unit section group in the block section-level unit section group; an optical route controller node performs optical path distribution for one or more RF node controllers; typically, one optical routing controller node performs optical path allocation for 2-16 RF node controllers, and the corresponding coverage distance is between 1 km and 16 km;

station-bay level cell bay group: one station inter-zone level unit interval group comprises 2-32 block inter-zone level unit interval groups, and the corresponding coverage distance is 1-300 kilometers; typically, one station inter-zone level unit interval group comprises 2-16 block inter-zone level unit interval groups, and the corresponding coverage distance is between 1 km and 150 km; the coverage distance of the large group of unit intervals is equivalent to the distance between stations of high-speed rails or subway stations;

data transmission and network controller node: a node for distributing light paths to the light route controller nodes corresponding to the station zone level unit zone group; one data transmission and network controller node performs optical path distribution for one or more optical route controller nodes; typically, one data transmission and network controller node performs optical path allocation for 2-16 optical route controller nodes;

line interval level cell interval group: each line region level unit interval group comprises 2-100 station region level unit interval groups, and the corresponding coverage distance is 10-3000 km; typically, one line inter-zone level unit interval group comprises 2-50 station inter-zone level unit interval groups, and the corresponding coverage distance is 30-1500 km; the covering distance of the unit interval group at the line interval level is equivalent to the length of a high-speed rail, such as the length of a Jinghusu line;

line control center node: a node for performing optical path distribution and transmission subnet/control subnet management on the station zone level unit interval group in the line zone level unit interval group; one line control center node performs optical path distribution and management for two or more data transmission and network controller nodes.

Examples 1 Example of a vehicle-mounted wireless communication control method

Referring to fig. 1, the embodiment of track-side satellite communication provided by the present invention includes the following steps:

step S110, acquiring network information of a vehicle-mounted network and/or network information of a wireless tracking transmission network on a running rail side;

step S120, using the at least one network information to perform at least one of the following operations:

control of inter-track shared RF node arrays;

wherein,

In the method of the present embodiment, the first step,wherein,

the method for acquiring the network information of the vehicle-mounted network comprises the following steps:

acquiring at least one of vehicle-mounted radio frequency unit information, vehicle-mounted wireless access point information and vehicle-mounted sensor information; wherein,

the vehicle-mounted radio frequency unit information comprises at least one of the following information:

vehicle-mounted radio frequency unit identification/identification information;

the corresponding relation information of the vehicle-mounted radio frequency unit and the carriage or the train;

information of the vehicle-mounted radio frequency unit and the installation position on the carriage or the train;

relative distance information between the vehicle-mounted radio frequency units;

spatial frequency multiplexing distance information among the vehicle-mounted radio frequency units;

side information of the vehicle-mounted radio frequency unit;

the corresponding relation information of the vehicle-mounted radio frequency unit and the vehicle-mounted wireless access point;

the radio frequency channel bandwidth and frequency position information of the vehicle-mounted radio frequency unit;

the vehicle-mounted wireless access point information comprises at least one of the following information:

vehicle-mounted wireless access point identification/identification information;

the corresponding relation information of the vehicle-mounted wireless access point and the carriage or the train;

the installation position information of the vehicle-mounted wireless access point on the carriage or the train;

spatial frequency reuse distance information between vehicle-mounted wireless access points

The corresponding relation information of the vehicle-mounted wireless access point and the vehicle-mounted radio frequency unit;

radio frequency channel bandwidth and frequency position information of the vehicle-mounted wireless access point;

the vehicle-mounted sensor information includes at least one of the following information:

vehicle-mounted sensor identification/identification information;

the corresponding relation information of the vehicle-mounted sensor and the carriage or the train;

information of installation positions of the vehicle-mounted sensor on a carriage or a train;

the corresponding relation information of the vehicle-mounted sensor and the vehicle-mounted wireless access point;

radio frequency channel bandwidth and frequency position information of the vehicle-mounted sensor;

preferably, the first and second electrodes are formed of a metal,

the step of acquiring the information of the vehicle-mounted radio frequency unit comprises at least one of the following sub-steps:

acquiring at least one of identity identification/identification information of a vehicle-mounted radio frequency unit, corresponding relation information of the vehicle-mounted radio frequency unit and a carriage or a train, installation position information of the vehicle-mounted radio frequency unit and the carriage or the train, corresponding relation information of the vehicle-mounted radio frequency unit and a vehicle-mounted wireless access point and radio frequency channel bandwidth and frequency position information of the vehicle-mounted radio frequency unit, wherein the identity identification/identification information of the vehicle-mounted radio frequency unit is reported by the vehicle-mounted radio frequency unit or is prestored;

a group of vehicle-mounted radio frequency units are used for sending radio signals which can be used for positioning to a radio frequency receiving/sending array contained in a wireless tracking transmission network on the side of a running rail; receiving the position information of the vehicle-mounted radio frequency units in the vehicle-mounted radio frequency unit group calculated by the wireless tracking transmission network by using the radio signals available for positioning from the radio frequency receiving/transmitting array, and calculating the relative distance information between the vehicle-mounted radio frequency units by using the position information of the vehicle-mounted radio frequency units; or, directly receiving the relative distance information between the vehicle-mounted radio frequency units calculated by the wireless tracking transmission network by using the radio signals available for positioning from the radio frequency receiving/transmitting array;

using a vehicle-mounted radio frequency unit to send a radio signal to a radio frequency receiving/transmitting array contained in a running rail side wireless tracking transmission network; receiving the radio signal using an antenna unit included in the radio frequency transmit/receive array; estimating a position A corresponding to the vehicle-mounted radio frequency unit at the radio frequency receiving/transmitting array by using the received radio signals, estimating a position B corresponding to the radio frequency receiving/transmitting array when the amplitude/intensity of the radio signals is lower than a first preset threshold, and determining the distance between the positions A and B as the minimum multiplexing distance of space frequency multiplexing; and

using a group of vehicle-mounted radio frequency units to send radio signals carrying identification/identification information of the vehicle-mounted radio frequency units to radio frequency receiving/sending arrays positioned on a first side and/or a second side of a track, which are contained in a wireless tracking transmission network on a running track side, and receiving the identification/identification information of the vehicle-mounted radio frequency units, which are received by the first radio frequency receiving/sending arrays or the second radio frequency receiving/sending arrays and have signal intensity larger than a second preset threshold, from the wireless tracking transmission network; judging the vehicle-mounted radio frequency units received by the radio frequency receiving/transmitting array positioned on the first side or the second side of the track into vehicle-mounted radio frequency units corresponding to the first side or the second side of the track/vehicle, and determining more than two vehicle-mounted radio frequency units corresponding to the first side or the second side of the track/vehicle as vehicle-mounted radio frequency unit groups with the same side;

the step of acquiring the vehicle-mounted wireless access point information comprises at least one of the following sub-steps:

acquiring at least one of identity identification/identification information of a vehicle-mounted wireless access point, corresponding relation information of the vehicle-mounted wireless access point and a carriage or a train, installation position information of the carriage or the train where the vehicle-mounted wireless access point is located, corresponding relation information of the vehicle-mounted wireless access point and a vehicle-mounted radio frequency unit and radio frequency channel bandwidth and frequency position information of the vehicle-mounted wireless access point, wherein the identity identification/identification information of the vehicle-mounted wireless access point is reported by the vehicle-mounted wireless access point or is prestored; and

transmitting a first radio signal by using a first vehicle-mounted wireless access point in a first compartment, receiving the first radio signal at a second/third vehicle-mounted wireless access point in a second/third compartment, and determining the distance between the first vehicle-mounted wireless access point and the second/third vehicle-mounted wireless access point as the spatial frequency multiplexing distance if the amplitude/intensity of the first radio signal received at the second/third vehicle-mounted wireless access point is lower than a first preset threshold;

the step of acquiring the vehicle-mounted sensor information comprises at least one of the following sub-steps:

acquiring at least one of identity identification/identification information of a vehicle-mounted sensor, corresponding relation information of the vehicle-mounted sensor and a carriage or a train, installation position information of the carriage or the train where the vehicle-mounted sensor is located, corresponding relation information of the vehicle-mounted sensor and a vehicle-mounted wireless access point and radio frequency channel bandwidth and frequency position information of the vehicle-mounted wireless access point, which are reported by the vehicle-mounted sensor or prestored, through a wired channel; and

acquiring corresponding relation information of the vehicle-mounted sensor and the vehicle-mounted wireless access point through a channel between the vehicle-mounted wireless access point and the vehicle-mounted wireless access point;

the method for acquiring the network information of the wireless tracking transmission network on the running rail side comprises the following steps:

acquiring at least one of identity identification/identification information of a wireless tracking transmission network, arrangement position/trend information of radio frequency receiving/transmitting arrays contained in the wireless tracking transmission network, end point position information of the radio frequency receiving/transmitting arrays, identity identification/identification information of different radio frequency receiving/transmitting arrays, continuing relation information among different radio frequency receiving/transmitting arrays, corresponding relation information of the radio frequency receiving/transmitting arrays and tracks, radio frequency channel bandwidth and frequency position information of the radio frequency receiving/transmitting arrays from a vehicle-mounted memory or the wireless tracking transmission network; and/or

Acquiring currently available radio frequency receiving/transmitting array information of a train/vehicle-mounted radio frequency unit from a vehicle-mounted memory or a wireless tracking transmission network, wherein the currently available radio frequency receiving/transmitting array information comprises at least one of radio frequency receiving/transmitting array identity identification/identification information, available bandwidth information and available frequency point information;

preferably, the first and second electrodes are formed of a metal,

the step of obtaining the currently available radio frequency receiving/transmitting array information of the train/vehicle-mounted radio frequency unit from the vehicle-mounted memory or from the wireless tracking transmission network comprises the following substeps:

and using the vehicle-mounted radio frequency unit to transmit radio signals carrying vehicle-mounted radio frequency unit/train/identification information to radio frequency receiving/transmitting arrays positioned on the first side and/or the second side of the track and contained in the wireless tracking transmission network on the side of the running track, and receiving currently available radio frequency receiving/transmitting array information from the first radio frequency receiving/transmitting array and/or the second radio frequency receiving/transmitting array.

The method of the present embodiment, wherein,

the method for identifying the track where the vehicle-mounted radio frequency unit is located comprises the following steps:

using a vehicle-mounted radio frequency transceiver unit to transmit radio signals carrying vehicle-mounted radio frequency unit/train/identity identification/identification information to the positions of first and second communication antenna units contained in radio frequency transceiver arrays positioned on the first and/or second sides of a track; and/or

Using a vehicle-mounted radio frequency transceiver unit to transmit radio signals carrying vehicle-mounted radio frequency unit/train/identity identification/identification information to the positions of first and second positioning/orientation antenna units contained in radio frequency transceiver arrays positioned on the first and/or second sides of a track;

receiving indication information of a track where a vehicle-mounted radio frequency unit/train is located from a radio frequency receiving/transmitting array located on the first side and/or the second side of the track;

the method comprises the following steps that a wireless tracking transmission network on the side of a running rail determines the track where a vehicle-mounted radio frequency unit/train is located by using the radio signals received by the radio frequency receiving/transmitting array, and specifically comprises at least one of the following steps:

comparing the signal strength received by the first and second communication antenna units, if the signal strength received by the first communication antenna unit is greater/smaller than the signal strength received by the second communication antenna unit, determining the arrival direction of the signal as coming from the first/both sides of the reference surface, and determining the track positioned at the first/both sides of the reference surface as the track where the train/vehicle-mounted radio frequency unit is positioned;

comparing the signal strength received by the first and second positioning/orientation antenna units, if the signal strength received by the first positioning/orientation antenna unit is greater/less than the signal strength received by the second positioning/orientation antenna unit, determining the arrival direction of the signal as coming from the first/two sides of the reference surface, and determining the track on the first/two sides of the reference surface as the track where the train/vehicle-mounted radio frequency unit is located; and

comparing the signal strengths received by the first and second communications antenna elements and comparing the signal strengths received by the first and second location/orientation antenna elements; if the signal strength received by the first communication antenna unit is greater than or less than the signal strength received by the second communication antenna unit, and the signal strength received by the first positioning/orientation antenna unit is greater than or less than the signal strength received by the second positioning/orientation antenna unit, determining the arrival direction of the signal as coming from the first side/the second side of the reference surface, and determining the track positioned at the first side/the second side of the reference surface as the track where the train/vehicle-mounted radio frequency unit is positioned;

the first/second antenna unit for positioning/orientation and/or the first/second antenna unit for positioning/orientation are arranged as follows:

arranging a first communication antenna unit and a second communication antenna unit in parallel in a first radio frequency receiving/transmitting array, wherein the main lobe directions of directional diagrams of the first/second communication antenna units are respectively set to be towards the first side and the second side of a reference plane, and/or the first communication antenna unit and the second communication antenna unit are arranged on different side surfaces of a metal plate/a first radio frequency receiving/transmitting array support body; the first and second antenna units for communication correspond to the first and second receiving channels, respectively, and the reference plane is a plane perpendicular to the ground/track bed plane and extending along the length direction of the first radio frequency receiving/transmitting array; and/or

Arranging a first positioning/directional antenna unit and a second positioning/directional antenna unit in parallel in a first radio frequency receiving/transmitting array, respectively setting the main lobe directions of directional diagrams of the first positioning/directional antenna unit and the second positioning/directional antenna unit to be towards the first side and the second side of a reference plane, and/or setting the first positioning/directional antenna unit and the second positioning/directional antenna unit on different sides of a metal plate/a first radio frequency receiving/transmitting array support body; the first and second positioning and/or orienting antenna units respectively correspond to the first and second receiving channels, and the reference plane is a plane which extends along the length direction of the first radio frequency receiving/transmitting array and is vertical to the ground/track bed plane;

the method for controlling the initial access of the vehicle-mounted radio frequency unit to the wireless tracking transmission network on the running rail side comprises the following steps:

transmitting a transmission link establishment request signal and/or a position indication signal to a radio frequency receiving/transmitting array positioned at the first side and/or the second side of the track by using a vehicle-mounted radio frequency unit in a first time interval;

receiving an access indication signal from a radio frequency receiving/transmitting array positioned at the first side and/or the second side of the track by using a vehicle-mounted radio frequency unit in a second time interval after the first time interval;

in a third time interval after the second time interval, establishing a data transmission channel by using the vehicle-mounted radio frequency unit and the radio frequency receiving/transmitting array positioned on the first side and/or the second side of the track;

wherein,

the vehicle-mounted radio frequency unit comprises vehicle-mounted radio frequency units positioned on one side or two sides of the train/carriage;

the access indication signal comprises at least one of the following signals:

an access grant signal;

accessing a frequency point/bandwidth indication signal;

indication information of a track where the train/vehicle-mounted radio frequency unit is located;

an identification/identification indicating signal of the vehicle-mounted radio frequency unit allowed to be used;

side indicating signals of the vehicle-mounted radio frequency unit allowed to be used;

indication signals of the spacing distance between the allowed vehicle-mounted radio frequency units;

identification/identification indication signals of the vehicle radio frequency unit allowing use in a space frequency manner;

wireless trace transport network identification/identification information allowed for use;

allowing use of radio frequency transmit/receive array identification/identification information;

relative position information of the radio frequency receiving/transmitting array allowed to be used and the track where the train/vehicle-mounted radio frequency unit is located;

preferably, the first and second electrodes are formed of a metal,

between the second time interval and a third time interval, using the information carried by the access indication signal to perform at least one of the following operations:

determining the number and the positions of vehicle-mounted radio frequency units for establishing data transmission channels with radio frequency receiving/transmitting arrays positioned on the first side and/or the second side of the track;

determining a vehicle-mounted wireless access point corresponding to a vehicle-mounted radio frequency unit for establishing a data transmission channel with a radio frequency receiving/transmitting array positioned on the first side and/or the second side of the track;

the method for controlling the reselection of the radio frequency receiving/transmitting array from the vehicle-mounted radio frequency unit to the wireless tracking transmission network on the running rail side comprises the following steps:

receiving a radio frequency receiving/transmitting array reselection indication signal from a wireless tracking transmission network from a first radio frequency receiving/transmitting array by using a vehicle-mounted first radio frequency unit which is positioned on a first track or a straight track and is currently in communication connection with the first radio frequency receiving/transmitting array;

the method comprises the steps that while a vehicle-mounted first radio frequency unit is in communication connection with a first radio frequency receiving/transmitting array, a vehicle-mounted second radio frequency unit is used for sending a request signal and/or a position indication signal for establishing a wireless transmission link to a second radio frequency receiving/transmitting array used before and after a train lane change; or

The method comprises the steps that when a vehicle-mounted second radio frequency unit is in communication connection with a first radio frequency receiving/transmitting array, a request signal and/or a position indication signal for establishing a wireless transmission link are/is sent by using the vehicle-mounted first radio frequency unit to the second radio frequency receiving/transmitting array used before and after a train is changed into a lane;

receiving an access indication signal from a second radio frequency receiving/transmitting array by using a vehicle-mounted second/first radio frequency unit;

establishing a data transmission channel by using the vehicle-mounted second/first radio frequency unit and the second radio frequency receiving/transmitting array while the vehicle-mounted first/second radio frequency unit and the second radio frequency receiving/transmitting array keep communication connection;

wherein,

the vehicle-mounted first radio frequency unit and the vehicle-mounted second radio frequency unit are positioned at the same side or different sides of a carriage/train;

the first and second radio frequency receiving/transmitting arrays are positioned on different sides of the first track and have discontinuous or non-overlapping RF coverage areas, or the first and second radio frequency receiving/transmitting arrays are positioned on the same side of the first track but have discontinuous or non-overlapping RF coverage areas;

the radio frequency receiving/transmitting array reselection indication signal comprises at least one of the following signals:

the identification/identification number of the second radio frequency receiving/transmitting array;

accessing a frequency point/bandwidth indicating signal of a second radio frequency receiving/transmitting array;

the second radio frequency receiving/transmitting array is used for indicating signals relative to the direction/side of the running track of the train;

preferably, the first and second electrodes are formed of a metal,

before the radio frequency receiving/transmitting array is reselected, using the vehicle-mounted second/first radio frequency unit to receive data from the second/first radio frequency receiving/transmitting array or transmit data to the second/first radio frequency receiving/transmitting array in a macro diversity mode;

on the wireless tracking transmission network side, in order to realize the radio frequency receiving/transmitting array reselection, the following steps are correspondingly executed:

the method for acquiring the train position information comprises the following steps:

obtaining train position information from a satellite positioning system and/or obtaining train position information by using a radio frequency receiving/transmitting array positioned on the side surface of a running rail;

the method for acquiring the train running track planning information comprises the following steps:

acquiring train running track planning information from a train dispatching/control center; and/or, acquiring train running track planning information from a vehicle-mounted device by using a radio frequency receiving/transmitting array positioned on the side surface of the running track;

acquiring corresponding relation information of the layout position or coverage area of the radio frequency receiving/transmitting array and the track, comprising the following steps:

acquiring the corresponding relation between the arrangement trend or coverage area of the radio frequency receiving/transmitting array and the service track thereof from a train dispatching/control center;

determining whether the radio frequency receiving/transmitting arrays used before and after the lane change of the train are the same uninterrupted covered array, if so, not executing the radio frequency receiving/transmitting array reselection operation; otherwise, a first radio frequency receiving/transmitting array which is in communication connection with the train-mounted radio frequency unit at present is used for transmitting a radio frequency receiving/transmitting array reselection indicating signal to the train-mounted radio frequency unit;

receiving a request signal and/or a position indication signal which are sent by a vehicle-mounted radio frequency unit and used for establishing a wireless transmission link from second radio frequency receiving/transmitting arrays used before and after a train lane change;

estimating the position of the vehicle-mounted radio frequency unit by using the request signal and/or the position indication signal for establishing the wireless transmission link, and establishing a data transmission channel with the vehicle-mounted radio frequency unit by using the communication antenna unit in the second radio frequency transmitting/receiving array corresponding to the position;

the method of the present embodiment, wherein,

the method for controlling the spatial multiplexing frequency among the vehicle-mounted radio frequency units comprises the following steps:

determining the number of wireless links which can be established in a space frequency multiplexing mode by using the information of the vehicle-mounted wireless radio frequency unit; and/or requesting the wireless tracking transmission network for the number of wireless links established in a space frequency reuse mode;

communicating with a radio frequency receiving/transmitting array contained in the wireless tracking transmission network by the number of wireless links which can be supported by the vehicle-mounted wireless radio frequency unit and is allowed by the wireless tracking transmission network;

the control method for the inter-track shared RF node array comprises the following steps:

acquiring RF node sharing indication information from a wireless tracking transmission network;

configuring the bandwidth and the frequency point of the vehicle-mounted radio frequency unit by using the RF node shared indication information;

wherein,

the RF node sharing comprises at least one of sharing of an antenna unit for communication, sharing of an antenna unit for positioning/orientation, sharing of frequency spectrum, sharing of a radio frequency channel and sharing of an optical transmission channel facing to a vehicle-mounted radio frequency unit, wherein the sharing of the RF node between the first and second tracks comprises sharing of the antenna unit for communication; the antenna units contained in the RF node are arranged between the first second tracks;

the RF node sharing indication information includes at least one of the following information:

frequency indication information available for the vehicle-mounted radio frequency unit on the first/second track;

the duration interval/section interval information of the RF node sharing mode;

on the side of a wireless tracking transmission network positioned on the side of a running rail, determining a sharing length interval for implementing RF node sharing between a first track and a second track by adopting the following corresponding method;

the antenna unit for communication contained in the radio frequency receiving/transmitting array positioned between the first track and the second track in the shared length section uses a first part of a first frequency band to communicate with the vehicle-mounted radio frequency unit on the first track, and uses a second part of the first frequency band to communicate with the vehicle-mounted radio frequency unit on the second track; the first portion of the first frequency band is non-overlapping in frequency with the second portion of the first frequency band;

determining a corresponding communication antenna unit in the radio frequency transmitting/receiving array based on the positioning of the vehicle-mounted radio frequency unit on the first track when communicating with the vehicle-mounted radio frequency unit on the first track using the first portion of the first frequency band; determining a corresponding communication antenna unit in the radio frequency transmitting/receiving array based on the positioning of the vehicle-mounted radio frequency unit on the second track when communicating with the vehicle-mounted radio frequency unit on the second track using the second portion of the first frequency band;

the vehicle-mounted radio frequency unit on the first track and the vehicle-mounted radio frequency unit on the second track are in opposite directions or in the same direction;

the method for controlling the transmission from the vehicle-mounted radio frequency unit to the vehicle-mounted wireless access point comprises the following steps:

determining the corresponding relation between the vehicle-mounted radio frequency unit and the vehicle-mounted wireless access point by using the vehicle-mounted wireless access point information and the vehicle-mounted radio frequency unit information;

determining an available vehicle-mounted radio frequency unit, and providing a transmission channel for a vehicle-mounted wireless access point by using the available vehicle-mounted radio frequency unit;

wherein,

the vehicle-mounted wireless access points are arranged in the same carriage or different carriages;

the vehicle-mounted wireless access point and the vehicle-mounted radio frequency unit are arranged in the same carriage or different carriages;

the method for controlling the transmission from the vehicle-mounted radio frequency unit to the vehicle-mounted running controller comprises the following steps:

configuring a driving control transmission channel for a vehicle-mounted driving controller on a vehicle-mounted radio frequency unit;

transmitting a control command to the vehicle-mounted driving controller by using the driving control transmission channel; and/or

Transmitting vehicle running state information required for vehicle-mounted running control to a wireless tracking transmission network by using the running control transmission channel;

the travel control transmission channel uses a different frequency and/or time interval than the transmission channel of the on-board wireless access point.

In the present embodiment, the on-vehicle rf unit includes a communication antenna unit and/or a positioning/orienting antenna unit, and is disposed at the bottom of the vehicle compartment or at the front/rear/left/right side of the vehicle compartment, and has a height lower than the window bottom height when disposed at the left/right side of the vehicle compartment; one transmission mode supported by the vehicle-mounted radio frequency unit is as follows: two or more vehicle-mounted radio frequency units are positioned in different carriages of the same train and simultaneously use at least part of the same frequency to communicate with the first radio frequency receiving/transmitting array;

in this embodiment, the antenna unit for communication includes at least one of a dipole antenna, a microstrip antenna, a helical antenna, a coaxial feed cable slot antenna, and a waveguide slot antenna;

in this embodiment, the positioning/orienting antenna unit includes at least one of a dipole antenna, a microstrip antenna, a helical antenna, a coaxial feed cable slot antenna, and a waveguide slot antenna.

The radio frequency receiving/transmitting array is a linear array which is arranged in at least one of a road shoulder area, a track bed area and two track interval areas along the track extending direction and comprises communication antenna units, the arrangement distance of the communication antenna units is 1-100 m, and the arrangement height of the communication antenna units is lower than the height of train windows;

in the present embodiment, the track-side/running-rail-side rf transmitting/receiving array includes a communication antenna element or a combination of a communication antenna element and a positioning antenna element and/or a directional antenna element, and when the track-side/running-rail-side rf transmitting/receiving array includes a combination of a communication antenna element and a positioning antenna element and/or a directional antenna element, at least two positioning antenna elements and/or directional antenna elements are arranged in a longitudinal section or a covered element section of one communication antenna element, and directional pattern main lobes of the two positioning antenna elements and/or directional antenna elements face different directions.

In this embodiment, referring to fig. 2, the first rf transceiver array 210 is located in the range of the line segment 200 and is disposed in an inter-track area between the first track and the second track, and the first rf transceiver array 210 includes an antenna module 211; fig. 2 also shows the following possible layout of the rf transmit/receive array: a second/third rf transmit/receive array 220/230 disposed in the shoulder area, including an antenna module 221/231; the fourth rf transceiver array 240 is disposed in the track bed area, located between the first track 251 and the second track 252, and includes the antenna module 141. The second track in the area of the section 200 comprises a first running rail 261 and a second running rail 262, in the area of the section 200 guard rails 270 and 280 are provided; the track bed and track included in the track section 200 are arranged overhead or on the ground.

In this embodiment, referring to fig. 3, the rf transceiver array 210 is located in the range of the line segment 300 and is disposed in a road shoulder area on one side of the straight track, and the first rf transceiver array 210 includes an antenna module 211; a second rf transmitting/receiving array 330 disposed in a road shoulder area at one side of the branch track, the first rf transmitting/receiving array 330 including an antenna module 331; the branch track includes a first travel rail 361 and a second travel rail 362; the first/second radio frequency receiving/transmitting arrays are positioned on different sides of the straight track, and the RF coverage areas of the first/second radio frequency receiving/transmitting arrays are discontinuous or not overlapped, in the embodiment, the straight track is a first track, and the bifurcation track is a second track; guardrails 370 and 380 are arranged in the range of the line section 300; the track bed and track included in the track section 300 are overhead or ground.

Embodiment 2 example of a vehicle-mounted wireless communication control apparatus

Referring to fig. 4, an embodiment of an in-vehicle wireless communication control apparatus 400 according to the present invention includes:

a network information acquisition module 410, a communication control module 420; wherein,

the network information obtaining module 410 is configured to obtain vehicle-mounted network information and/or network information of a driving rail side wireless tracking transmission network, and includes a vehicle-mounted network information obtaining sub-module 411 and/or a driving rail side wireless tracking transmission network information obtaining sub-module 412;

the communication control module 420 is configured to at least one of:

control of inter-track shared RF node arrays;

the communication control module 420 includes at least one of the following sub-modules:

a track identification submodule 421 for identifying a track where the vehicle-mounted radio frequency unit is located;

an initial access control submodule 422 from the vehicle-mounted radio frequency unit to the running rail side wireless tracking transmission network;

a radio frequency receiving/transmitting array reselection control submodule 423 for the vehicle-mounted radio frequency unit to the wireless tracking transmission network on the running rail side;

an inter-vehicle rf unit spatial multiplexing frequency control sub-module 424;

a control sub-module 425 of the inter-track shared RF node array;

a transmission control sub-module 426 from the vehicle-mounted radio frequency unit to the vehicle-mounted wireless access point;

the transmission control submodule 427 from the vehicle radio frequency unit to the vehicle driving controller.

The apparatus of the present embodiment, wherein,

the vehicle-mounted network information acquisition submodule is used for acquiring at least one of vehicle-mounted radio frequency unit information, vehicle-mounted wireless access point information and vehicle-mounted sensor information and comprises at least one of a vehicle-mounted radio frequency unit information acquisition component, a vehicle-mounted wireless access point information acquisition component and a vehicle-mounted sensor information acquisition component;

the wireless tracking transmission network information acquisition submodule on the running rail side is used for:

the information acquisition submodule of the wireless tracking transmission network on the running rail side comprises an interface component which is used for transmitting with a vehicle-mounted memory or the wireless tracking transmission network.

The apparatus of the present embodiment, wherein,

the track identification submodule where the vehicle-mounted radio frequency unit is located is used for executing the following operation steps:

the track identification submodule where the vehicle-mounted radio frequency unit is located comprises: a sending control component of a radio signal carrying the vehicle-mounted radio frequency unit/train/identity identification/identification information and a receiving/processing component of the track indication information of the vehicle-mounted radio frequency unit/train;

the vehicle-mounted radio frequency unit is connected with an initial access control submodule of the wireless tracking transmission network on the side of the running rail, and is used for executing the following operation steps:

the initial access control submodule from the vehicle-mounted radio frequency unit to the running rail side wireless tracking transmission network comprises: a transmission link establishment request signal and/or position indication signal sending control component, an access indication signal receiving/processing component and a data transmission channel establishment control component;

the radio frequency receiving/transmitting array reselection control submodule from the vehicle-mounted radio frequency unit to the wireless tracking transmission network on the running rail side is used for executing the following operation steps:

the radio frequency receiving/transmitting array reselection control submodule from the vehicle-mounted radio frequency unit to the wireless tracking transmission network on the running rail side comprises: a radio frequency receiving/transmitting array reselection indication signal receiving/processing component and a transmission control component for a request signal and/or a position indication signal of establishing a wireless transmission link.

The apparatus of the present embodiment, wherein,

the space multiplexing frequency control submodule among the vehicle-mounted radio frequency units is used for executing the following operation steps:

the space multiplexing frequency control submodule among the vehicle-mounted radio frequency units comprises a wireless link quantity determining component;

the control sub-module of the inter-track shared RF node array is used for executing the following operation steps:

the control sub-module of the inter-track shared RF node array comprises an RF node shared indication information acquisition component and a vehicle-mounted radio frequency unit configuration component;

the transmission control submodule from the vehicle-mounted radio frequency unit to the vehicle-mounted wireless access point is used for executing the following operation steps:

the transmission control submodule from the vehicle-mounted radio frequency unit to the vehicle-mounted wireless access point comprises: the corresponding relation between the vehicle-mounted radio frequency unit and the vehicle-mounted wireless access point determines a component and a vehicle-mounted wireless access point transmission channel configuration component;

the transmission control submodule from the vehicle-mounted radio frequency unit to the vehicle-mounted running controller is used for executing the following operation steps:

the transmission control submodule from the vehicle-mounted radio frequency unit to the vehicle-mounted running controller comprises: a travel control transport channel configuration component.

Embodiment 3 example of a vehicle-mounted wireless communication control system

The embodiment of the vehicle-mounted wireless communication control system provided by the invention comprises the following components:

the system comprises a vehicle-mounted wireless communication control node, a vehicle-mounted radio frequency unit node and a vehicle-mounted wireless access point; wherein,

the vehicle-mounted wireless communication control node is based on a vehicle-mounted wireless communication control device provided by an embodiment of the vehicle-mounted wireless communication control device provided by the invention, which is described in embodiment 2, and specifically includes:

control of inter-track shared RF node arrays;

a control submodule of the inter-track shared RF node array;

a transmission control submodule from the vehicle-mounted radio frequency unit to the vehicle-mounted running controller;

the system of the embodiment further comprises at least one module of a vehicle-mounted wireless positioning/orientation module, a vehicle-mounted sensor interface module and a train running control information interface module; wherein,

the vehicle-mounted wireless positioning/orientation module is used for sending a wireless positioning/orientation signal to a radio frequency receiving/sending array on the track side/the running track side and comprises a positioning/orientation antenna unit and a positioning/orientation radio frequency channel module; the vehicle-mounted wireless positioning/orientation module and the vehicle-mounted radio frequency unit node are arranged in a co-site mode or in a non-site mode;

the vehicle-mounted sensor interface module is used for establishing a transmission channel between the vehicle-mounted sensor and the radio frequency receiving/transmitting array on the track side/the running track side and comprises a wired transmission interface module;

the train running control information interface module is used for establishing a transmission channel between the vehicle-mounted train running controller and the rail side/running rail side radio frequency receiving/transmitting array and comprises a wired transmission interface module.

The vehicle-mounted wireless communication control method provided by the embodiment of the invention can be wholly or partially realized through software instructions and/or hardware circuits; the vehicle-mounted wireless communication control device and the vehicle-mounted wireless communication control system provided by the embodiment of the invention can be completely or partially realized by using an electronic technology, a photoelectric technology or an optical transmission technology.

Although the embodiment of the invention takes rail transit (high-speed rail, subway, city rail) as an example to describe a specific implementation method, the application scope of the invention is not limited to the communication application of rail transit vehicles, for example, the track side arrangement mode is changed into the mode of arranging the RF node array in the side/shoulder of the lane or in the side of the maglev track, and the invention can be used for communication and control of road vehicles or maglev trains.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A vehicle-mounted wireless communication control method comprises the following steps:

control of inter-track shared RF node array;

wherein,

2. The method of claim 1, wherein,

vehicle-mounted radio frequency unit identification/identification information;

side information of the vehicle-mounted radio frequency unit;

vehicle-mounted sensor identification/identification information;

preferably, the first and second electrodes are formed of a metal,

3. The method of claim 1, wherein,

wherein,

the access indication signal comprises at least one of the following signals:

an access grant signal;

accessing a frequency point/bandwidth indication signal;

preferably, the first and second electrodes are formed of a metal,

wherein,

preferably, the first and second electrodes are formed of a metal,

and before the reselection of the radio frequency receiving/transmitting array is completed, receiving data from the second/first radio frequency receiving/transmitting array or transmitting data to the second/first radio frequency receiving/transmitting array by using the vehicle-mounted second/first radio frequency unit in a macro diversity mode.

4. The method of claim 1, wherein,

wherein,

the duration interval/section interval information of the RF node sharing mode;

wherein,

5. An in-vehicle wireless communication control apparatus comprising:

control of inter-track shared RF node arrays;

a control submodule of the inter-track shared RF node array;

6. The apparatus of claim 5, wherein,

7. The apparatus of claim 5, wherein,

8. The apparatus of claim 5, wherein,

9. An in-vehicle wireless communication control system based on the in-vehicle wireless communication control apparatus of claim 5, further comprising:

a vehicle-mounted radio frequency unit node and a vehicle-mounted wireless access point; wherein,

the vehicle-mounted wireless access point is used for establishing a transmission channel between a vehicle-mounted mobile terminal or other vehicle-mounted communication nodes and a rail side/running rail side radio frequency receiving/transmitting array, and comprises an antenna unit and a radio frequency channel module.

10. The system of claim 9, further comprising at least one of an on-board wireless location/orientation module, an on-board sensor interface module, and a train movement control information interface module; wherein,