CN217883841U - Mine multi-link mobile communication system - Google Patents
Mine multi-link mobile communication system Download PDFInfo
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- CN217883841U CN217883841U CN202221142143.2U CN202221142143U CN217883841U CN 217883841 U CN217883841 U CN 217883841U CN 202221142143 U CN202221142143 U CN 202221142143U CN 217883841 U CN217883841 U CN 217883841U
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Abstract
The utility model relates to a mobile communication technology field especially relates to a mining multilink mobile communication system. Wherein, this mining multilink mobile communication system includes: the underground equipment of the licensed communication band subsystem comprises a transmission device and a protective shell. Adopt above-mentioned scheme the utility model discloses can improve mining communication system's transmission efficiency, time delay performance and reliability.
Description
Technical Field
The utility model relates to a mobile communication technology field especially relates to a mining multilink mobile communication system.
Background
With the gradual development of the safety production situation of coal mines, in order to realize safer and more efficient coal mine production, the technical development of coal mine production is developed from mechanization and automation to intellectualization, and coal mining, transportation and the like are also developed to the direction of less humanization and no humanization. The mining communication system becomes a basic supporting technology for intelligent development of a coal mine. In the related art, the mining communication system is mainly used as a channel for information transmission, and meanwhile, due to the fact that the mining communication system is special in working environment and limited by the limited transmission rate, time delay performance and reliability of the traditional communication system, the transmission efficiency of the mining communication system is severely limited.
Disclosure of Invention
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the utility model aims to provide a mining multilink mobile communication system to solve mining communication system's transmission efficiency low, the time delay performance is poor and the not high technical problem of reliability.
In order to achieve the above object, an embodiment of the present invention provides a mining multilink mobile communication system, including:
a licensed band communication subsystem, downhole equipment of which comprises a transmission device and a protective casing.
Optionally, in an embodiment of the present invention, the mining multilink mobile communication system further includes at least one of a subsystem set, the subsystem set including:
the underground equipment of the unlicensed frequency band communication subsystem comprises a transmission device and a protective shell;
a positioning subsystem, downhole equipment of which includes a transmission and a protective housing;
a direct communication subsystem, downhole equipment of which comprises a transmission device and a protective housing;
a broadcast communication subsystem, downhole equipment of which includes a transmission device and a protective housing.
Optionally, in an embodiment of the present invention, the mine multilink mobile communication system includes at least one of a licensed frequency band communication subsystem and a subsystem set; wherein the content of the first and second substances,
the unlicensed frequency band communication subsystem includes at least one of first type systems of unlicensed frequency band communication subsystems, and the first type systems of unlicensed frequency band communication subsystems are non-cellular system systems, including: a WiFi system in a time division multiplexing TDM mode, a WiFi system based on orthogonal frequency division multiplexing OFDMA, a Bluetooth system and a satellite flash wireless communication system;
the positioning subsystem comprises at least one of a first type of positioning subsystem, the first type of positioning subsystem is a non-cellular system, comprising: the system comprises an ultra-wideband UWB system, a Zigbee system, a perception sensing system and a radio frequency identification RFID system;
the direct communication subsystem includes at least one of a first type of system of the direct communication subsystem, the first type of system of the direct communication subsystem is a non-cellular system, including: a WiFi system, a wireless intercom system;
the broadcast communication subsystem is a first type system of the broadcast communication subsystem, and the first type system of the broadcast communication subsystem is a non-cellular system and comprises a digital wired broadcast communication system.
Optionally, in an embodiment of the present invention, the mining multilink mobile communication system includes at least one of a licensed frequency band communication subsystem and a subsystem set, and all subsystems are cellular system systems; wherein, the first and the second end of the pipe are connected with each other,
the unlicensed frequency band communication subsystem includes at least one of a second type system of the unlicensed frequency band communication subsystem, and the second type system of the unlicensed frequency band communication subsystem is a cellular system, including: a new air interface access system of an unlicensed frequency band and an unlicensed access system of a direct-connection communication link;
the positioning subsystem comprises at least one of a second type of positioning subsystem, the second type of positioning subsystem is a cellular system, and the positioning subsystem comprises: an NR positioning technology system, a cellular direct communication link based positioning system;
the direct communication subsystem includes at least one of a second type of system of the direct communication subsystem, the second type of system of the direct communication subsystem is a cellular system, including: an LTE direct communication system, an NR direct communication system;
the broadcast communication subsystem is a broadcast communication subsystem second type system, and the broadcast communication subsystem second type system is a cellular system, including a cellular wireless broadcast multicast system.
Optionally, in an embodiment of the present invention, the mining multilink mobile communication system includes at least one of a licensed frequency band communication subsystem and a subsystem set; wherein the content of the first and second substances,
the unlicensed frequency band communication subsystem is at least one of a first type system and a second type system of the unlicensed frequency band communication subsystem, and the first type system of the unlicensed frequency band communication subsystem is a non-cellular system, including: a WiFi system in a TDM mode, a WiFi system based on OFDMA, a Bluetooth system and a satellite flash wireless communication system; the second type system of the unlicensed frequency band communication subsystem is a cellular system, and comprises: a new air interface access system of an unlicensed frequency band and an unlicensed access system of a direct-connection communication link;
the positioning subsystem is at least one of a first type system and a second type system of the positioning subsystem, the first type system of the positioning subsystem is a non-cellular system, and the positioning subsystem comprises: a UWB system, a Zigbee system, a perception sensing system and an RFID system; the second type system of the positioning subsystem is a cellular system, which comprises: an NR positioning system, a cellular direct communication link based positioning system;
the direct connection communication subsystem is at least one of a first type system of the direct connection communication subsystem and a second type system of the direct connection communication subsystem, the first type system of the direct connection communication subsystem is a non-cellular system, and the method comprises the following steps: a WiFi system, a wireless intercom system; the second type system of the direct connection communication subsystem is a cellular system, and comprises: an LTE direct communication system, an NR direct communication system;
the broadcast communication subsystem is at least one of a first type system and a second type system of the broadcast communication subsystem, and the first type system of the broadcast communication subsystem is a non-cellular system and comprises a digital wired broadcast communication system; the second type system of the broadcast communication subsystem is a cellular system comprising a cellular wireless broadcast multicast system;
the subsystem of the mining multilink mobile communication system comprises at least one of a first type system of an unlicensed frequency band communication subsystem, a first type system of a positioning subsystem, a first type system of a direct-connection communication subsystem and a first type system of a broadcast communication subsystem, and comprises at least one of a second type system of an unlicensed frequency band communication subsystem, a second type system of a positioning subsystem, a second type system of a direct-connection communication subsystem and a second type system of a broadcast communication subsystem.
Optionally, in an embodiment of the present invention, the licensed band communication subsystem includes a core network device, a transmission network, and an access network device.
Optionally, in an embodiment of the present invention, the access network device includes a base station device and a terminal device, or the base station device, the terminal device and the reconfigurable intelligent super surface device.
Optionally, in an embodiment of the present invention, the base station device includes a baseband processing device, a radio remote device, or a baseband processing device, a radio remote device, and a hub.
Optionally, in an embodiment of the present invention, the terminal device includes at least one of the following:
a handheld terminal;
a vehicle-mounted terminal;
customer Premises Equipment (CPE);
a lightweight RedCap termination;
sensor that possesses wireless transmission function.
Optionally, in an embodiment of the present invention, the access network device has a radio frequency device, and the radio frequency device supports at least one first frequency band or at least one second frequency band;
the first frequency band is less than or equal to a preset frequency threshold;
the second frequency band is a combination of a first frequency band and a third frequency band, and the frequency band of the first frequency band is different from the frequency band of the third frequency band.
To sum up, the embodiment of the utility model provides a mining multilink mobile communication system, include: a licensed band communications subsystem, downhole equipment of which comprises a transmission device and a protective housing. Therefore, the transmission efficiency, the time delay performance and the reliability of the mining communication system can be improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a first mine multilink mobile communication system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second mine multilink mobile communication system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a licensed frequency band communication subsystem according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an architecture of a licensed band communication subsystem according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the related technology, the mining multi-link mobile communication system is mainly a 4G (4 th generation) fourth-generation mobile communication system and WiFi (Wireless Fidelity) at present, the positioning system mainly includes Zigbee (violet peak) Zigbee and Ultra Wide Band (UWB), and the mine communication system also includes a digital broadcast system and the like. The current mainstream system operation mode is that each system works independently.
It is easy to understand that, in the mining multi-link mobile communication system in the related art, the LTE (Long Term Evolution) Long Term Evolution technology, i.e. 4G, is still mainly adopted on the allowed frequency, and the transmission requirements under the complex heterogeneous multi-system architecture of coal mine intelligent construction cannot be supported by the transmission rate, the transmission delay, the reliability and the like. Moreover, the main communication technology on the license-free frequency is WiFi, and UWB, zigbee and the like of the positioning technology operate independently on the one hand, are separated from the mobile communication system and are difficult to merge. Meanwhile, the wireless positioning technology and positioning real-time performance and reliability of the unlicensed spectrum are difficult to improve due to the limitation of the unlicensed frequency.
In addition, with the development of a new generation of mobile communication technology, a 5G (5 th generation) fifth generation mobile communication technology with characteristics of large bandwidth, low time delay and high reliability becomes a mainstream technology of a new generation of public telecommunication network communication, and a 5G mobile communication system also potentially becomes an advanced alternative technology for intelligent development of a coal mine.
However, the application environment of the mining multilink mobile communication system is different from that of the conventional public telecommunication network, and has the following remarkable characteristics:
(1): the mining multi-link mobile communication system needs to meet the requirements of dual transmission in the coal mine well;
(2): the aboveground transmission of the mine communication system needs to fully consider the equipment resource allocation and data management requirements under different levels of management of a mine to develop a targeted design;
(3): the downhole transmission of coal mine communication systems requires consideration of the following issues:
a) The method comprises the following steps The underground coal mine signal needs to cover a roadway which is more than 10 kilometers long, the underground roadway is a limited space which is in strip-shaped and strip-shaped distribution, and the multipath effect of signal transmission is obvious;
b) The method comprises the following steps Interference factors of wireless signal transmission are complex, and a communication network is required to have stronger anti-interference capability;
c) The method comprises the following steps The method comprises the following steps that (1) explosion-proof design is required for combustible gas such as gas and equipment existing in the underground coal mine, and the explosion-proof performance is checked according to the maximum total power of a transmitting antenna;
d) The method comprises the following steps Aiming at the actual requirements of various monitoring data and audio and video data transmission, the resource requirements of uplink transmission of a mine communication network are more obvious, and the requirements of downlink transmission of a traditional public telecommunication network are obvious.
In addition to the above-mentioned common technical problems, under the urgent needs of intelligent development of coal mines and the definite target of less-humanized and unmanned mine construction, the mining multi-link mobile communication system should not simply solve the problem of information transmission channel, and also needs to develop a targeted design for the requirements of less-humanized and unmanned application, which mainly includes:
(1): in addition to the information communication function, it is necessary to have a communication fusion function represented by positioning, for example, to support automatic driving of a vehicle;
(2): the integration of subsystems such as voice communication, data transmission, scheduling communication, broadcast communication, positioning application, control application and the like is required to be realized, and the interconnection and intercommunication and linkage control of various systems in the underground coal mine are realized, such as supporting the automatic control of working face equipment and the like; meanwhile, efficient linkage control with low time delay among multiple systems needs to be considered.
However, in the actual construction process of the mine, the following practical technical problems still exist:
(1): upgrading and reconstructing projects, wherein existing wired communication systems, positioning systems and the like exist in coal mines, and compatibility and intercommunication among subsystems need to be considered;
(2): newly building a project, and if the project is centralized construction, realizing overall planning and unified construction; if the single system is independently constructed, the compatibility problem among subsystems still needs to be considered.
Therefore, for the actual situation difference of system deployment, the mine mobile communication system needs to provide a targeted system architecture to comprehensively meet the actual requirements of mine field construction.
The present invention will be described in detail with reference to specific examples.
Fig. 1 is a schematic structural diagram of a first mine multilink mobile communication system according to an embodiment of the present invention.
As shown in fig. 1, a first mining multi-link mobile communication system 100 provided by the embodiment of the present invention includes:
a licensed band communications subsystem 110, the downhole equipment of the licensed band communications subsystem 110 comprising transmission means and a protective casing.
According to some embodiments, the licensed band communications subsystem 110 refers to a subsystem for communicating within a licensed band. The licensed band communications subsystem 110 is not specific to a fixed subsystem. The licensed band communication subsystem 110 includes, but is not limited to, 5G, 6G, and evolved wireless communication systems thereof. For example, the licensed band communication subsystem 110 may be a 5G New Radio (NR) communication system. The licensed band communication subsystem 110 may also be a 6G communication system. It is easily understood that the utility model discloses an adopt licensed band communication subsystem 110 to communicate in the licensed band, can adopt 5G, 6G and its evolution wireless communication technique to replace the LTE technique. Furthermore, the transmission rate, the transmission delay and the reliability of the mining multi-link mobile communication system can be improved, so that the transmission requirement under the complex heterogeneous multi-system architecture of the intelligent construction of the coal mine can be met.
In the embodiment of the present invention, fig. 2 is a schematic structural diagram of a second kind of mining multilink mobile communication system provided in the embodiment of the present invention. As shown in fig. 2, the mining multilink mobile communication system 100 further includes at least one of a set of subsystems 120, the set of subsystems including:
the unlicensed frequency band communication subsystem 121, wherein the downhole equipment of the unlicensed frequency band communication subsystem 121 comprises a transmission device and a protective shell;
a positioning subsystem 122, the downhole equipment of the positioning subsystem 122 including a transmission and a protective housing;
a direct communication subsystem 123, downhole equipment of the direct communication subsystem 123 comprising a transmission and a protective housing;
the broadcast communication subsystem 124, the downhole equipment of the broadcast communication subsystem 124 includes transmission equipment and a protective housing.
According to some embodiments, the downhole devices comprised in the licensed band communication subsystem 110, the unlicensed-band communication subsystem 121, the positioning subsystem 122, the direct communication subsystem 123 and the broadcast communication subsystem 124 are not specific to a fixed device. For example, the downhole devices may be base station devices and terminal devices. The downhole equipment can also be base station equipment, terminal equipment and a reconfigurable intelligent super surface.
In some embodiments, the protective enclosures included in the licensed band communications subsystem 110, the unlicensed band communications subsystem 121, the positioning subsystem 122, the direct communication subsystem 123, and the broadcast communication subsystem 124 are not specific to a particular fixed enclosure. For example, the protective housing may be an intrinsically safe equipment protective housing. The protective shell can also be an explosion-proof equipment protective shell. The protective shell can also be an explosion-proof and intrinsically safe equipment protective shell.
The embodiment of the utility model provides an in, mining multilink mobile communication system fuses framework, control plane according to the data plane and fuses any kind of network deployment in the framework and mix.
According to some embodiments, the data plane convergence architecture refers to a design architecture suitable for retrofitting, adding new licensed band communication subsystems 110 to existing communication subsystems. When the mining multilink mobile communication system adopts a data plane fusion architecture, each subsystem performs protocol conversion and data interaction on the platform side, and a wireless communication network supporting the requirements of large bandwidth, low time delay and high reliability can be provided by relying on the mining multilink mobile communication system to the maximum extent.
According to some embodiments, the control plane convergence architecture is also called a system architecture under 3rd Generation Partnership Project (3 GPP) technical system, and refers to an architecture suitable for an overall new design of a mining multi-link mobile communication system. All subsystems of the mining multilink mobile communication system under the control plane convergence architecture are all based on cellular technology.
In some embodiments, the control plane convergence architecture constructs a control panel-converged mining multi-link mobile communication system by using a single 3GPP technical system (single cellular technical system), and can solve the technical problems that heterogeneous systems have fixed functions and cannot dynamically adjust bearer channels and functions according to actual service transmission conditions. Resource scheduling and traffic offloading based on dynamic load and traffic priority can be achieved.
According to some embodiments, a hybrid converged architecture refers to an architecture that is a hybrid of a data plane converged architecture and a control plane converged architecture. The hybrid convergence architecture is suitable for at least one subsystem of the newly added licensed band communication subsystem 110 and the newly added subsystem set 120, but is still based on the design architecture of the existing at least one other subsystem. The mining multi-link mobile communication system adopts a hybrid fusion architecture, can realize flexible expansion of a mine mobile communication network, and can realize design and configuration of service transmission loads and transmission channels according to requirements.
It is easily understood, the utility model discloses an use licensed frequency band communication subsystem 110 as core subsystem, towards different construction demands and technical route, propose three kinds of system architecture that fuse such as communication, location, dispatch, control, can solve the independent heterogeneous of mine mobile communication system construction system, construction demand difference is showing, the low scheduling problem of technical fusion cohesion.
In the embodiment of the present invention, when the mining multilink mobile communication system adopts the data plane convergence architecture, the mining multilink mobile communication system 100 includes at least one of the licensed frequency band communication subsystem 110 and the subsystem set 120; wherein the content of the first and second substances,
the unlicensed frequency band communication subsystem 121 includes at least one of first type systems of unlicensed frequency band communication subsystems, and the first type systems of unlicensed frequency band communication subsystems are non-cellular system systems including: a WiFi system of a Time Division Multiplexing (TDM) system, a WiFi system based on Orthogonal Frequency Division Multiplexing (OFDMA), a bluetooth system, and a satellite flash wireless communication system;
the positioning subsystem 122 includes at least one of a first type of positioning subsystem, which is a non-cellular system, including: a UWB system, a Zigbee system, a sensing system, a Radio Frequency Identification (RFID) system;
the direct communication subsystem 123 includes at least one of a first type of system of the direct communication subsystem, and the first type of system of the direct communication subsystem is a non-cellular system, including: a WiFi system, a wireless intercom system;
the broadcast communication subsystem 124 is a broadcast communication subsystem first type system, and the broadcast communication subsystem first type system is a non-cellular system including a digital cable broadcast communication system.
According to some embodiments, aiming at the requirements of low time delay and high reliability of equipment control of the underground working face of the coal mine, and combining the condition that the position of the equipment of the underground working face of the coal mine is relatively fixed or the movement range of the equipment is relatively fixed, the satellite flash wireless communication system is adopted by the unlicensed frequency band wireless communication subsystem, the time delay of short-distance wireless communication of a specific working face can be reduced, and the reliability of the short-distance wireless communication of the specific working face is improved.
In the embodiment of the present invention, when the mining multilink mobile communication system adopts a control plane convergence architecture, the mining multilink mobile communication system 100 includes at least one of the licensed frequency band communication subsystem 110 and the subsystem set 120, and all the subsystems are cellular system systems; wherein the content of the first and second substances,
the unlicensed frequency band communication subsystem 121 is at least one of a second type system of the unlicensed frequency band communication subsystem, and the second type system of the unlicensed frequency band communication subsystem is a cellular system, including: a new air interface access system of an unlicensed frequency band and an unlicensed access system of a direct-connection communication link;
the positioning subsystem 122 includes at least one of a second type of positioning subsystem, which is a cellular system, including: an NR positioning technology system, a cellular direct communication link based positioning system;
the direct communication subsystem 123 includes at least one of a second type of system of the direct communication subsystem, and the second type of system of the direct communication subsystem is a cellular system, including: an LTE direct communication system, an NR direct communication system;
the broadcast communication subsystem 124 is a broadcast communication subsystem second type system, and the broadcast communication subsystem second type system is a cellular system, including a cellular wireless broadcast multicast system.
According to some embodiments, the cellular system refers to a system that adopts a cellular wireless networking mode and connects a terminal and network equipment through a wireless channel, so as to realize mutual communication of users during activities. In the related art, the cellular system can be used in car networking and public safety services. Wherein, for the related business of the car networking and automatic driving, the special frequency band of intelligent transportation can be used.
In some embodiments, the wireless communication requirements of the underground coal mine are obviously different from the ground field, and the uplink bandwidth is required to occupy a large proportion for underground video monitoring and data uploading of various sensors of the coal mine; the terrestrial domain is mainly based on downlink transmission. Therefore, for the remote control driving service which can pass through the cellular uplink and downlink on the ground, because the underground coal mine uplink resources are seriously short, the direct connection communication subsystem can bear the underground coal mine uplink resources based on the direct connection communication by adopting the cellular system, and the obvious requirement of the specific uplink resources of the coal mine can be relieved.
In the embodiment of the present invention, when the mining multilink mobile communication system adopts the hybrid convergence architecture, the mining multilink mobile communication system 100 includes at least one of the licensed frequency band communication subsystem 110 and the subsystem set 120; wherein the content of the first and second substances,
the unlicensed frequency band communication subsystem 121 is at least one of a first type system and a second type system of the unlicensed frequency band communication subsystem, and the first type system of the unlicensed frequency band communication subsystem is a non-cellular system, including: a WiFi system in a TDM mode, a WiFi system based on OFDMA, a Bluetooth system and a satellite flash wireless communication system; the second type system of the unlicensed frequency band communication subsystem is a cellular system, which comprises: a new air interface access system of an unlicensed frequency band and an unlicensed access system of a direct-connection communication link;
the positioning subsystem 122 is at least one of a first type system and a second type system, and the first type system is a non-cellular system, including: a UWB system, a Zigbee system, a perception sensing system and an RFID system; the second type of positioning subsystem is a cellular system comprising: an NR positioning system, a cellular direct communication link based positioning system;
the direct connection communication subsystem 123 is at least one of a first type system of the direct connection communication subsystem and a second type system of the direct connection communication subsystem, and the first type system of the direct connection communication subsystem is a non-cellular system, including: a WiFi system, a wireless intercom system; the second type system of the direct connection communication subsystem is a cellular system, which comprises: an LTE direct communication system, an NR direct communication system;
the broadcast communication subsystem 124 is at least one of a first type system of the broadcast communication subsystem and a second type system of the broadcast communication subsystem, and the first type system of the broadcast communication subsystem is a non-cellular system and comprises a digital cable broadcast communication system; the second type system of the broadcast communication subsystem is a cellular system, which comprises a cellular wireless broadcast multicast system;
the subsystems of the mining multi-link mobile communication system 110 comprise at least one of a license-free frequency band communication subsystem first type system, a positioning subsystem first type system, a direct-connection communication subsystem first type system and a broadcast communication subsystem first type system, and comprise at least one of a license-free frequency band communication subsystem second type system, a positioning subsystem second type system, a direct-connection communication subsystem second type system and a broadcast communication subsystem second type system.
In the embodiment of the present invention, fig. 3 is a schematic structural diagram of an allowed frequency band communication subsystem provided by the embodiment of the present invention. As shown in fig. 3, the licensed band communication subsystem 110 includes a core network device 111, a transport network 112 and an access network device 113.
According to some embodiments, the deployment architecture of the core network device 111 is any of the following:
a core network server is deployed in a first-level equipment room, and a User Plane Function (UPF) is deployed in a second-level equipment room;
the core network server and the UPF are deployed in a first-level equipment room;
the core network server and the UPF are deployed in an equipment room of a second level;
the equipment room of the first level is connected with and manages a plurality of equipment rooms of a second level, and the equipment rooms of the second level are equipment rooms which are only connected with and manage a single mine underground transmission network and access network equipment.
It is easily understood that the utility model discloses an adopt the sharing of core network server, the sunken framework of UPF can realize the sharing of core network server equipment resource and resource dynamic allocation, colliery/mine can be according to information security management's concrete requirement, deploy the safety policy on sunken UPF side, realize the safety control of data simultaneously and shunt according to the tactics, partial data only intranet transmission, partial data can insert public network and communicate.
The embodiment of the present invention provides an access network device 113 including a base station device and a terminal device, or a super surface device of a base station device, a terminal device and reconfigurable intelligence.
According to some embodiments, the access network device 113 may use at least one licensed frequency band for data transmission.
In some embodiments, the licensed bands include, but are not limited to, the following bands:
700MHz frequency band range (703-748 MHz and/or 758-803 MHz);
900MHz frequency band range, (880-915 MHz and/or 925-960 MHz);
2.6GHz band range, (2515-2615 MHz and/or 2615-2675 MHz);
the frequency range of 3.3GHz (3300-3400 MHz);
the frequency band range of 3.5GHz (2400-3500 MHz and/or 3500-3600 MHz);
the 4.9GHz band (4800-4900 MHz and/or 4900-5000 MHz).
The embodiment of the utility model provides an in, base station equipment includes baseband processing equipment, radio frequency equipment of zooming out, perhaps baseband processing equipment, radio frequency equipment of zooming out and concentrator.
In the embodiment of the present invention, the access network device 113 has a radio frequency device, and the radio frequency device supports at least one first frequency band or at least one second frequency band;
the first frequency band is a frequency band smaller than or equal to a preset frequency threshold;
the second frequency band is a combination of the first frequency band and the third frequency band, and the frequency bands of the first frequency band and the third frequency band are different.
According to some embodiments, the second frequency band includes, but is not limited to, the following combinations of frequency bands:
n28(700MHz FDD)+n41(2.6GHz)；
n83(700MHz SUL)+n41(2.6GHz)；
n28(700MHz FDD)+n79(4.9GHz)；
n83(700MHz SUL)+n79(4.9GHz)；
n8(900MHz FDD)+n78(3.5GHz)；
n81(900MHz SUL)+n78(3.5GHz)。
it is easy to understand that the coal mine underground has obvious multipath effect due to the limited space of strip and strip distribution, and has more facilities and equipment, and the signal attenuation of wireless signal transmission is serious. Therefore, the utility model discloses an adopt at least one second frequency channel to carry out data transmission, can be to mine electromagnetic wave transmission mechanism, the frequency channel of second frequency channel is lower more, the cover distance is big more, adopts the frequency channel that is less than or equal to the predetermined frequency value threshold, and the limited effect that can play the cover reinforcing.
It is easily understood that, in the related art, the transmission power of the terminal does not exceed 23dBm, while the transmission power of the pRRU (pico Remote Reset Unit) pico base station can reach 26dBm or 33dBm, and the uplink transmission power is relatively low, so that the coverage enhancement needs to heavily consider the uplink. Therefore, the utility model discloses an adopt at least one second frequency channel to carry out data transmission, can go upward to strengthen, use the frequency channel that is less than or equal to the predetermined frequency threshold in the pit of colliery on the one hand, go downward still usable be greater than or equal to the frequency channel of predetermined frequency threshold, provide great bandwidth, can realize going upward simultaneously and cover the reinforcing, down big bandwidth and do not show the effect of lifting means ability and cost significantly.
In an embodiment of the present invention, the terminal device includes at least one of the following:
a handheld terminal;
a vehicle-mounted terminal;
customer Premises Equipment (CPE);
a Reduced Capability (Reduced) terminal;
sensor that possesses wireless transmission function.
According to some embodiments, the sensor with wireless transmission function does not refer to a fixed sensor. The sensor with wireless transmission function includes but is not limited to a camera, an environmental parameter monitoring sensor, a laser radar, a millimeter wave radar, a disaster monitoring sensor, and the like.
According to some embodiments, fig. 4 is a schematic diagram of an architecture of a licensed band communication subsystem according to an embodiment of the present invention. As shown in fig. 4, one layer of the licensed band communication subsystem 110 includes an Active Antenna Unit (AAU) macro station and a core network server. The two-layer architecture of the licensed band communications subsystem 110 is the core switch of the UPF. The underground access network equipment is connected with a two-layer framework through a mine explosion-proof and intrinsic safety type network interface and an optical fiber ring network. The access network equipment comprises baseband processing equipment, radio remote equipment and a hub. The terminal equipment comprises a mining intrinsic safety type mobile phone, a mining intrinsic safety gateway, an intelligent mining lamp, a mining wireless camera, an environmental parameter sensor, a disaster monitoring sensor and a laser/millimeter wave radar.
In the embodiment of the present invention, when the positioning subsystem 122 and the direct-connection communication subsystem 123 are both cellular system technologies, the licensed frequency band communication subsystem 110, the positioning subsystem 122, and the direct-connection communication subsystem 123 all include network side devices and terminal devices;
the network side device deployment modes of the licensed band communication subsystem 110, the positioning subsystem 122 and the direct connection communication subsystem 123 are as follows:
the network side device of the positioning subsystem 122, the network side device of the direct connection communication subsystem 123, and the network side device of the licensed band communication subsystem 110 are deployed in the same physical entity, and the logical entity of the network side device of the positioning subsystem 122, the logical entity of the network side device of the direct connection communication subsystem 123, and the logical entity of the network side device of the licensed band communication subsystem 110 are independent;
the terminal device deployment modes of the licensed band communication subsystem 110, the positioning subsystem 122 and the direct connection communication subsystem 123 are any one of the following modes:
at least two types of terminal equipment of the positioning subsystem 122, terminal equipment of the direct connection communication subsystem 123 and terminal equipment of the licensed band communication subsystem 110 are deployed in the same physical entity, and the logical entities of the terminal equipment of the positioning subsystem 122, the terminal equipment of the direct connection communication subsystem 123 and the terminal equipment of the licensed band communication subsystem 110 are independent;
the physical entities and the logical entities of the terminal device of the positioning subsystem 122, the terminal device of the direct connection communication subsystem 123, and the terminal device of the licensed band communication subsystem 122 are all independent.
It is easy to understand that heterogeneous systems cannot realize different functions, efficient and accurate adaptation of application data, and cannot realize efficient and coordinated linkage control. Therefore, the utility model discloses a logic entity that realizes location subsystem 122 and directly link communication subsystem 123 is independent, can support the decoupling zero of different functions to establish the low coupling system architecture of high cohesion.
In the embodiment of the present invention, when the unlicensed frequency band communication subsystem 121 and the broadcast communication subsystem 124 are cellular system technologies, the licensed frequency band communication subsystem 110, the unlicensed frequency band communication subsystem 121, the broadcast communication subsystem 124 all include network side equipment and terminal equipment:
the licensed band communication subsystem 110, the unlicensed band communication subsystem 121, and the broadcast communication subsystem 124 may be deployed in any of the following manners:
the network side device of the unlicensed band communication subsystem 121, the network side device of the broadcast communication subsystem 124, and the network side device of the licensed band communication subsystem 110 are deployed in the same physical entity, and the network side device of the unlicensed band communication subsystem 121, the network side device of the broadcast communication subsystem 124, and the network side device of the licensed band communication subsystem 110 are independent in logical entity;
the network side device of the unlicensed frequency band communication subsystem 121, the network side device of the broadcast communication subsystem 124, and the network side device of the licensed frequency band communication subsystem 110 are deployed in the same physical entity, and the logical entities of the network side device of the unlicensed frequency band communication subsystem 121, the network side device of the broadcast communication subsystem 124, and the network side device of the licensed frequency band communication subsystem 110 are the same logical entity;
the terminal devices of the licensed band communication subsystem 110, the unlicensed band communication subsystem 121, and the broadcast communication subsystem 124 are deployed in any one of the following manners:
the terminal device of the unlicensed frequency band communication subsystem 121, the terminal device of the broadcast communication subsystem 124, and the terminal device of the licensed frequency band communication subsystem 110 are deployed in the same physical entity, and the terminal device of the unlicensed frequency band communication subsystem 121, the terminal device of the broadcast communication subsystem 124, and the terminal device of the licensed frequency band communication subsystem 110 are independent from each other in logical entities;
the physical entities of the terminal device of the unlicensed frequency band communication subsystem 121, the terminal device of the broadcast communication subsystem 124, and the terminal device of the licensed frequency band communication subsystem 110 are independent, and the logical entities of the terminal device of the unlicensed frequency band communication subsystem 121, the terminal device of the broadcast communication subsystem 124, and the terminal device of the licensed frequency band communication subsystem 110 are independent;
the terminal device of the unlicensed frequency band communication subsystem 121, the terminal device of the broadcast communication subsystem 124, and the terminal device of the licensed frequency band communication subsystem 110 are disposed in the same physical entity, and the logical entities of the terminal device of the unlicensed frequency band communication subsystem 121, the terminal device of the broadcast communication subsystem 124, and the terminal device of the licensed frequency band communication subsystem 110 are the same logical entity.
According to some embodiments, the network side devices in the licensed band communication subsystem 110, the unlicensed band communication subsystem 121, the location subsystem 122, and the direct connection communication subsystem 123 broadcast communication subsystem 124 are not specifically referred to as a fixed device. For example, the network side device may be a base station device of the access network device. The network side device may also be a base station device and a core network device of the access network device.
According to some embodiments, consider the efficiency of colliery underground multi-system communication and linkage dispatch, the utility model discloses a support the polymerization of the logic entity of unlicensed frequency band communication subsystem 121, can realize the mapping of quality of service flow at the management entity end to realize high-efficient interconnection and subsystem linkage.
To sum up, the embodiment of the utility model provides a mining multilink mobile communication system, include: the underground equipment of the licensed communication band subsystem comprises a transmission device and a protective shell. The utility model discloses can improve mining communication system's transmission efficiency, time delay performance and reliability.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms may be directed to different embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A mining multilink mobile communication system, comprising:
a licensed band communication subsystem, downhole equipment of which comprises a transmission device and a protective housing;
the mining multilink mobile communication system further comprises at least one of a set of subsystems, the set of subsystems comprising:
the underground equipment of the unlicensed frequency band communication subsystem comprises a transmission device and a protective shell;
a positioning subsystem, downhole equipment of which includes a transmission and a protective housing;
a direct connection communication subsystem, downhole equipment of which comprises a transmission device and a protective housing;
a broadcast communication subsystem, downhole equipment of which includes a transmission device and a protective housing.
2. The mining multilink mobile communication system of claim 1, which includes at least one of a licensed band communication subsystem and a set of subsystems; wherein, the first and the second end of the pipe are connected with each other,
the unlicensed frequency band communication subsystem comprises at least one of first type systems of the unlicensed frequency band communication subsystem, and the first type system of the unlicensed frequency band communication subsystem is a non-cellular system and comprises: a WiFi system in a time division multiplexing TDM mode, a WiFi system based on orthogonal frequency division multiplexing OFDMA, a Bluetooth system and a satellite flash wireless communication system;
the positioning subsystem comprises at least one of a first type system of the positioning subsystem, the first type system of the positioning subsystem is a non-cellular system, and the positioning subsystem comprises: the system comprises an ultra-wideband UWB system, a Zigbee system, a perception sensing system and a radio frequency identification RFID system;
the direct communication subsystem comprises at least one of a first type of system of the direct communication subsystem, the first type of system of the direct communication subsystem is a non-cellular system, and the method comprises the following steps: a WiFi system, a wireless intercom system;
the broadcast communication subsystem is a first type system of the broadcast communication subsystem, and the first type system of the broadcast communication subsystem is a non-cellular system and comprises a digital wired broadcast communication system.
3. The mining multilink mobile communication system of claim 1, wherein the mining multilink mobile communication system includes at least one of a licensed frequency band communication subsystem and a set of subsystems, and all subsystems are cellular system systems; wherein, the first and the second end of the pipe are connected with each other,
the unlicensed frequency band communication subsystem includes at least one of a second type system of the unlicensed frequency band communication subsystem, and the second type system of the unlicensed frequency band communication subsystem is a cellular system, including: a new air interface access system of an unlicensed frequency band and an unlicensed access system of a direct-connection communication link;
the positioning subsystem comprises at least one of a second type of positioning subsystem, the second type of positioning subsystem is a cellular system, and the positioning subsystem comprises: an NR positioning technology system, a positioning system based on cellular direct connection communication links;
the direct communication subsystem includes at least one of a second type of system of the direct communication subsystem, the second type of system of the direct communication subsystem is a cellular system, including: an LTE direct communication system, an NR direct communication system;
the broadcast communication subsystem is a broadcast communication subsystem second type system, and the broadcast communication subsystem second type system is a cellular system, including a cellular wireless broadcast multicast system.
4. The mining multilink mobile communication system of claim 1, wherein the mining multilink mobile communication system comprises at least one of a licensed band communication subsystem and a set of subsystems; wherein the content of the first and second substances,
the unlicensed frequency band communication subsystem is at least one of a first type system of the unlicensed frequency band communication subsystem and a second type system of the unlicensed frequency band communication subsystem, and the first type system of the unlicensed frequency band communication subsystem is a non-cellular system and comprises: a WiFi system in a TDM mode, a WiFi system based on OFDMA, a Bluetooth system and a satellite flash wireless communication system; the second type system of the unlicensed frequency band communication subsystem is a cellular system, and comprises: a new air interface access system of an unlicensed frequency band and an unlicensed access system of a direct-connection communication link;
the positioning subsystem is at least one of a first type system and a second type system of the positioning subsystem, the first type system of the positioning subsystem is a non-cellular system, and the positioning subsystem comprises: a UWB system, a Zigbee system, a perception sensing system and an RFID system; the second type system of the positioning subsystem is a cellular system, which comprises: an NR positioning system, a cellular direct connection communication link based positioning system;
the direct connection communication subsystem is at least one of a first type system of the direct connection communication subsystem and a second type system of the direct connection communication subsystem, the first type system of the direct connection communication subsystem is a non-cellular system, and the method comprises the following steps: a WiFi system, a wireless intercom system; the second type system of the direct connection communication subsystem is a cellular system, and comprises: an LTE direct communication system, an NR direct communication system;
the broadcast communication subsystem is at least one of a first type system and a second type system of the broadcast communication subsystem, and the first type system of the broadcast communication subsystem is a non-cellular system and comprises a digital wired broadcast communication system; the second type system of the broadcast communication subsystem is a cellular system comprising a cellular wireless broadcast multicast system;
the subsystem of the mining multi-link mobile communication system comprises at least one of a first type system of an unlicensed frequency band communication subsystem, a first type system of a positioning subsystem, a first type system of a direct-connected communication subsystem and a first type system of a broadcast communication subsystem, and comprises at least one of a second type system of an unlicensed frequency band communication subsystem, a second type system of a positioning subsystem, a second type system of a direct-connected communication subsystem and a second type system of a broadcast communication subsystem.
5. A mining multilink mobile communication system as in claim 1, wherein said licensed band communication subsystem includes a core network device, a transport network and an access network device.
6. A mining multilink mobile communication system according to claim 5, characterized in that the access network device includes a base station device and a terminal device, or a base station device, a terminal device and a reconfigurable intelligent super surface device.
7. The mining multilink mobile communication system of claim 6, wherein the base station device comprises a baseband processing device, a radio remote device, or a baseband processing device, a radio remote device, and a hub.
8. The mining multilink mobile communication system of claim 6, wherein said terminal device includes at least one of:
a handheld terminal;
a vehicle-mounted terminal;
customer Premises Equipment (CPE);
a lightweight RedCap termination;
sensor that possesses wireless transmission function.
9. A mining multilink mobile communications system as in claim 5, said access network equipment having radio frequency means supporting at least one first frequency band or at least one second frequency band;
the first frequency band is less than or equal to a preset frequency threshold;
the second frequency band is a combination of a first frequency band and a third frequency band, and the frequency band of the first frequency band is different from the frequency band of the third frequency band.
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| CN202221142143.2U CN217883841U (en) | 2022-05-12 | 2022-05-12 | Mine multi-link mobile communication system |
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| CN202221142143.2U CN217883841U (en) | 2022-05-12 | 2022-05-12 | Mine multi-link mobile communication system |
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