Railway communication transmission wireless cabinet and communication base station

Abstract

This application provides a railway communication transmission wireless cabinet and communication base station, including: a cabinet, transmission equipment, and wireless equipment. The transmission equipment and wireless equipment are located inside the cabinet, with the transmission equipment located on the side of the wireless equipment facing away from the bottom of the cabinet. The transmission equipment includes: a transmission power distribution unit and a transmission subframe, with the transmission power distribution unit located on the side of the transmission subframe facing away from the wireless equipment. The wireless equipment includes: a remote radio frequency unit and a baseband processing unit, with the remote radio frequency unit located on the side of the baseband processing unit facing the transmission equipment. Thus, by integrating the transmission equipment and wireless equipment into a single cabinet, the installation location of the equipment is further optimized, the space utilization within the cabinet is improved, the construction period is shortened, construction quality is guaranteed, and the floor space is reduced.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a railway communication transmission wireless cabinet and communication base station. Background Technology

[0002] With the continuous improvement of my country's railway construction and management level, the demand for intensive and standardized equipment is increasing. The National Railway Administration's "14th Five-Year Plan" for railway science and technology innovation also puts forward new requirements: "Developing specialized, intensive, precise, and intelligent maintenance technologies, as well as integrated manufacturing and repair technologies; improving the cloud-based intelligent health management level of infrastructure throughout its entire life cycle; promoting the application of unmanned technologies; deepening theoretical innovation and technological breakthroughs in infrastructure operation and maintenance; and optimizing service performance and operational quality." Meanwhile, considering the upcoming peak period of major renovations and upgrades of my country's high-speed railways, the need for rapid upgrades to existing communication base stations is becoming increasingly urgent and necessary. In traditional brick-and-mortar communication equipment room layouts, transmission equipment and wireless equipment are housed in separate cabinets, with low space utilization rates—less than 50% of the total space—which is detrimental to the intensive construction of railway communication base stations.

[0003] Therefore, how to improve the space utilization rate of railway communication base stations in order to reduce the footprint of base stations has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To address the aforementioned technical issues, this application provides a railway communication transmission wireless cabinet and communication base station, which improves the space utilization of railway communication base stations and reduces the footprint of the base stations.

[0005] In a first aspect, this application provides a railway communication transmission wireless cabinet, comprising: a cabinet body, a transmission device, and a wireless device, wherein the transmission device and the wireless device are located inside the cabinet body, and the transmission device is located on the side of the wireless device opposite to the bottom of the cabinet body;

[0006] The transmission device includes: a transmission power distribution unit and a transmission subframe, wherein the transmission power distribution unit is located on the side of the transmission subframe opposite to the wireless device;

[0007] The wireless device includes: a remote radio frequency unit and a baseband processing unit, wherein the remote radio frequency unit is located on the side of the baseband processing unit facing the transmission device.

[0008] Optionally, the transmission subframe includes a plurality of first transmission subframes, which are placed side by side along a first direction; the first direction is parallel to the plane containing the bottom surface of the cabinet.

[0009] Optionally, the wireless transmission cabinet further includes a fan located between the transmission device and the wireless device.

[0010] Optionally, the fan includes at least two first fans arranged side by side along the first direction.

[0011] Optionally, the remote radio frequency unit includes at least two first remote radio frequency units, one of which is a spare unit.

[0012] Optionally, the baseband processing unit includes at least two first baseband processing units, one of which is a backup unit.

[0013] Optionally, the wireless transmission cabinet further includes a cable organizer, with one cable organizer corresponding to each of the first baseband processing units, and the cable organizer is located below the first baseband processing unit corresponding to it.

[0014] Secondly, based on the same inventive concept, this application provides a railway communication base station, including a railway communication transmission wireless cabinet as described in the first aspect, the base station also including an outdoor communication tower, and a cable trough is included between the outdoor communication tower and the transmission wireless cabinet.

[0015] Optionally, the cable trough includes a feeder surge protector and a shielded grounding terminal, with the feeder surge protector adjacent to the shielded grounding terminal.

[0016] Optionally, the cable trough includes at least two pre-embedded pipes with a gap between adjacent pre-embedded pipes, and the pre-embedded pipes include an outdoor feeder.

[0017] The technical solution provided in this application has the following advantages compared with the prior art: This application provides a railway communication transmission wireless cabinet and communication base station, comprising: a cabinet, transmission equipment, and wireless equipment. The transmission equipment and wireless equipment are located inside the cabinet, with the transmission equipment located on the side of the wireless equipment facing away from the bottom of the cabinet. The transmission equipment includes: a transmission power distribution unit and a transmission subframe, with the transmission power distribution unit located on the side of the transmission subframe facing away from the wireless equipment. The wireless equipment includes: a remote radio frequency unit and a baseband processing unit, with the remote radio frequency unit located on the side of the baseband processing unit facing the transmission equipment. Thus, by integrating the transmission equipment and wireless equipment into a single cabinet, the placement of the equipment can be further optimized, the space utilization within the cabinet can be improved, and the footprint of existing base stations can be reduced. By integrating various equipment modules according to functional module partitioning and heat dissipation requirements, the equipment layout can be optimized, enabling the railway communication base station to achieve modular, intensive, and factory-produced construction, shortening the construction cycle, ensuring construction quality, and reducing the footprint. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 The figure shown is a plan view of a railway communication transmission wireless cabinet provided in an embodiment of this application;

[0021] Figure 2 The diagram shown is a schematic diagram of a railway communication base station connection provided in an embodiment of this application. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0024] Figure 1 The figure shown is a plan view of a railway communication transmission wireless cabinet provided in an embodiment of this application. Please refer to it. Figure 1 This application provides a railway communication transmission wireless cabinet 100, including: cabinet 10, transmission device 20, and wireless device 30. The transmission device 20 and wireless device 30 are located inside the cabinet 10, and the transmission device 20 is located on the side of the wireless device 30 away from the bottom of the cabinet 10. The transmission device 20 includes: a transmission power distribution unit 12 and a transmission subframe 13. The transmission power distribution unit 12 is located on the side of the transmission subframe 13 away from the wireless device 30. The wireless device 30 includes: a remote radio frequency unit 14 and a baseband processing unit 15. The remote radio frequency unit 14 is located on the side of the baseband processing unit 15 facing the transmission device 20.

[0025] Specifically, in one optional embodiment provided in this application, the railway communication transmission wireless cabinet 100 integrates the transmission device 20 and the wireless device 30 into the same cabinet. In terms of layout, from top to bottom, the cabinet contains a transmission power distribution unit 12, a transmission subframe 13, a remote radio frequency unit 14, and a baseband processing unit 15. Optionally, the wireless device 30 also includes a power supply unit. Both the transmission power distribution unit 12 and the wireless device 30's power supply units draw 48V DC power from a separate power supply cabinet's high-voltage DC power distribution unit to power the transmission device 20 and the wireless device 30. In traditional brick-and-mortar communication equipment room layouts, the transmission device 20 and the wireless device 30 are in separate cabinets, and the space utilization rate of both cabinets is low, with the utilized area being less than 50% of the total cabinet space. The railway communication transmission wireless cabinet 100 combines the two cabinets into one, further optimizing the equipment placement while reducing space requirements. In railway communication systems, considering the heat dissipation problem of equipment, an air conditioning cabinet can be installed on one side of the railway communication transmission wireless cabinet 100. This application does not limit this.

[0026] It should be noted that the transmission equipment 20 is used to provide access nodes for services such as environmental monitoring, wireless, remote control, and emergency response, while the wireless equipment 30 is used to provide wireless coverage for the supporting antenna feeder system.

[0027] Please refer to Figure 1 This application provides a railway communication transmission wireless cabinet 100, the transmission sub-frame 13 includes a plurality of first transmission sub-frames 131, the plurality of first transmission sub-frames 131 are placed side by side along a first direction D1; the first direction D1 is parallel to the plane where the bottom surface 18 of the cabinet body 10 is located.

[0028] Specifically, in one optional embodiment provided in this application, the cabinet 10 includes a top surface 11, a bottom surface 18, and a side surface 19. The power distribution unit 12 in the transmission device 20 is located on the side closest to the top surface 11 of the cabinet 10, and the transmission sub-frame 13 is located on the side of the power distribution unit 12 facing away from the top surface 11 of the cabinet 10. The transmission sub-frame 13 includes multiple first transmission sub-frames 131 of the same size, which are arranged vertically side-by-side in a direction parallel to the plane containing the bottom surface 18. The outermost first transmission sub-frame 131 has its outer side on the same plane as the power distribution unit 12, thus facilitating efficient use of the space in the cabinet 10.

[0029] Please continue to refer to this. Figure 1 This application provides a railway communication transmission wireless cabinet 100, which also includes a fan 17 located between the transmission device 20 and the wireless device 30.

[0030] Specifically, the installation of a fan 17 inside the wireless transmission cabinet 100 can improve air convection and heat dissipation within the cabinet. In one optional embodiment provided in this application, the fan 17 can be a centrifugal fan, or other types of fans, etc. This application does not limit the type, material, or size of the fan 17, as long as it meets the placement space requirements of the wireless transmission cabinet 100. This embodiment uses a centrifugal fan, with airflow perpendicular to the fan blade axis, resulting in high air pressure but low air volume. The volute structure enhances the concentrated air delivery capacity, used for heat dissipation of the transmission device 20 and wireless device 30 in the wireless transmission cabinet 100.

[0031] Optionally, the fan 17 supports hot-swappable replacement, and a washable filter can also be installed on the fan 17 for dust filtration. This application does not limit the material or filtration accuracy of the filter; specific settings can be made according to actual needs. Optionally, the fan 17 can operate within a temperature range of -20℃ to 55℃ to adapt to the temperature environment inside the wireless transmission cabinet 100.

[0032] Please refer to Figure 1 This application provides a railway communication transmission wireless cabinet 100, wherein the fan 17 includes at least two first fans 171, which are arranged side by side along a first direction D1.

[0033] Specifically, in one optional embodiment provided in this application, the wireless transmission cabinet 100 includes at least two first fans 171. The first fans 171 are located between the transmission device 20 and the wireless device 30, and the two first fans 171 are arranged side by side along a direction parallel to the plane where the bottom surface 18 of the cabinet 10 is located. By setting two first fans 171, the air volume inside the wireless transmission cabinet 100 can be increased, thereby improving the cooling efficiency. By arranging the two first fans 171 side by side between the transmission device 20 and the wireless device 30, the equipment inside the wireless transmission cabinet 100 can achieve uniform heat dissipation as much as possible, thus extending the equipment lifespan.

[0034] Please continue to refer to this. Figure 1 This application provides a railway communication transmission wireless cabinet 100, wherein the remote radio frequency unit 14 includes at least two first remote radio frequency units 141, one of which is a backup unit.

[0035] Specifically, in one optional embodiment provided in this application, the remote radio frequency unit 14 includes at least two first remote radio frequency units 141, one of which is a primary unit and the other is a backup unit. The primary unit is located on the side of the backup unit facing the transmission device 20. The remote radio frequency unit 14 is responsible for converting digital signals into radio frequency signals and transmitting and receiving wireless signals through an antenna. Its core function focuses on the processing and transmission of wireless signals, making it a key component for wireless access in wireless communication networks. The remote radio frequency unit 14 contains a radio frequency signal processing module that can perform modulation, demodulation, amplification, and filtering operations on signals to generate radio frequency signals suitable for transmission. It is typically directly connected to a set of antennas, supporting various antenna configurations and multiple access technologies to optimize the coverage and transmission quality of wireless signals.

[0036] Please refer to Figure 1 This application provides a railway communication transmission wireless cabinet 100, wherein the baseband processing unit 15 includes at least two first baseband processing units 151, one of which is a backup unit.

[0037] Specifically, in one optional embodiment provided in this application, the baseband processing unit 15 includes at least two first baseband processing units 151, one of which is a primary unit and the other is a backup unit. The primary unit is located on the side of the backup unit facing the transmission device 20 and is used as a backup in case the primary unit fails, so as to maintain the normal operation of the railway communication system. The baseband processing unit 15 is mainly responsible for processing the digital signals received from the remote radio frequency unit, including channel coding and decoding, baseband signal modulation and demodulation, and protocol processing. It also undertakes the connection with the core network to realize communication between the mobile terminal and the mobile network. It involves both baseband processing of wireless signals and data transmission between the base station and the core network, combining the characteristics of transmission and wireless equipment. The baseband processing unit 15 works in cooperation with the remote radio frequency unit 14. The baseband processing unit 15 is used to centrally process complex baseband signal processing tasks, and the remote radio frequency unit 14 is used to process radio frequency signals. The performance and quality of the baseband processing unit 15 directly affect the operation and communication quality of the entire railway communication system and is an important component of the wireless communication network.

[0038] Please continue to refer to this. Figure 1 This application provides a railway communication transmission wireless cabinet 100, which also includes a cable organizer 16. A first baseband processing unit 151 is correspondingly provided with a cable organizer 16, and the cable organizer 16 is located below the first baseband processing unit 151 corresponding to it.

[0039] Specifically, in one optional embodiment provided in this application, a cable organizer 16 is provided below the first baseband processing unit 151, which serves as the primary unit, and a cable organizer 16 is provided below the first baseband processing unit 151, which serves as the backup unit. The number of cable organizers 16 corresponds one-to-one with the number of first baseband processing units 151. The cable organizer 16 is the invisible hub of communication / data center infrastructure management. Its value is not only reflected in the maintenance of physical order, but also in empowering business continuity through multiple dimensions such as signal protection, operation and maintenance efficiency, and cost optimization. The cable organizer 16 can use preset card slots / cable ties / Velcro structures to classify and fix scattered cables (such as fiber optic patch cords, twisted pairs, and power cords) according to the routing level (backbone / branch / equipment level), avoiding the compression of operating space caused by cable tangling (such as expanding the maintenance space of the cabinet back door from 30cm to 50cm). The cable management unit 16 features a built-in guide slot design that ensures a minimum fiber optic bending radius of ≥40mm (compliant with G.657 standards), reducing the risk of optical attenuation (optical loss increases by 0.2dB for every 10mm reduction in bending radius). The cable management unit 16's metal shielding layer or layered cable management structure maintains a distance of ≥15cm between high-voltage (220V) and low-voltage (signal lines), reducing crosstalk and isolating electromagnetic interference. The cable management unit 16's flexible buffer bracket absorbs fan / air conditioner vibrations, reducing micro-vibration attenuation.

[0040] Optionally, the cable organizer 16 can be a vertical cable organizer or other types of cable organizers. This application does not limit the type and model of the cable organizer 16; it can be selected according to actual needs. The vertical cable organizer used in this embodiment includes a guide rail and a snap-on cable tray. The guide rail can be made of metal or plastic, and this application does not limit this. The vertical cable organizer supports height expansion from 1U to 48U. The vertical cable organizer can reduce cable obstruction of the hot and cold aisles of the cabinet, thus reducing energy consumption efficiency. Through the triple identification of cable labels, color code management, and routing map visualization of the vertical cable organizer, troubleshooting time can be shortened and fault location efficiency can be improved.

[0041] Figure 2 The diagram shown is a schematic representation of a railway communication base station connection according to an embodiment of this application. Please refer to it. Figure 1 and Figure 2 This application provides a railway communication base station 200, which includes the railway communication transmission wireless cabinet 100 as described above. The railway communication base station 200 also includes an outdoor communication tower 40, and a cable trough 50 is included between the outdoor communication tower 40 and the transmission wireless cabinet 100.

[0042] Specifically, in one optional embodiment provided in this application, a cable trough 50 is included between the transmission wireless cabinet 100 and the outdoor communication tower 40. Optionally, the cable trough 50 extends from the side 19 of the cabinet 10 of the transmission wireless cabinet 100 to the outdoor communication tower 40. The cable trough 50 is protected against external impacts by a closed structure (such as the cover design of a metal cable tray) or high-strength materials (such as flame-retardant PVC or galvanized steel). By setting up the cable trough 50, the reliability of signal transmission can be improved, the maintenance efficiency of the railway communication system can be improved, the time for a single inspection can be shortened, and the openable cover design facilitates maintenance and reduces maintenance costs.

[0043] Please refer to Figure 1 and Figure 2 This application provides a railway communication base station 200, in which a cable trough 50 includes a feeder surge protector 51 and a shielded grounding terminal 52, with the feeder surge protector 51 adjacent to the shielded grounding terminal 52.

[0044] Specifically, in one optional embodiment provided in this application, the cable trough 50 includes a feeder surge protector 51. The feeder surge protector 51 can be used to discharge surge energy. When lightning strikes the antenna or signal transmission line, the feeder surge protector 51 quickly breaks down through its internal gas discharge tube or spark gap, forming a low-impedance path and guiding the large current to the grounding wire, preventing damage to downstream equipment due to overvoltage. The feeder surge protector 51 uses transient suppression diodes or varistors to clamp residual voltage within the equipment's safe range (e.g., below tens of volts), ensuring that communication equipment is not subjected to high-voltage surges. The feeder surge protector 51, through impedance matching design (coaxial structure) and filtering circuitry, avoids signal reflection or attenuation, ensuring the stability of high-frequency communication.

[0045] The cable trough 50 also includes a shielded grounding terminal 52. The shielded grounding terminal 52 is used to connect the grounding wires of multiple electrical devices together and connect them to the ground of the building or equipment, providing a low-impedance path to guide fault current from the electrical devices to the ground, reducing the risk of electric shock to personnel and equipment. The shielded grounding terminal 52 is grounded through a shielding layer, which reduces interference from external electromagnetic fields on signal transmission and improves signal quality. The shielded grounding terminal 52 can also be used to conduct static charge on the equipment to the ground through the grounding terminal, preventing static electricity accumulation that could damage the equipment.

[0046] Please refer to Figure 1 and Figure 2 This application provides a railway communication base station 200, in which a cable trough 50 includes at least two pre-buried pipes 00, with a gap between adjacent pre-buried pipes 00, and the pre-buried pipes 00 include an outdoor feeder.

[0047] Specifically, in one optional embodiment provided in this application, the diameter of the pre-buried pipe 00 is 100mm, and the cable trough 50 includes at least two pre-buried pipes 00. There is a gap between adjacent pre-buried pipes 00, which can reduce signal interference. By inserting the outdoor feeder into the pre-buried pipe 00, the specific structure of the pre-buried pipe 00 can reduce the damage of external impact to the outdoor feeder, extend the service life of the outdoor feeder, and ensure the normal operation of the railway communication base station.

[0048] In summary, this application provides a railway communication transmission wireless cabinet and communication base station, comprising: a cabinet, transmission equipment, and wireless equipment, wherein the transmission equipment and wireless equipment are located within the cabinet, and the transmission equipment is located on the side of the wireless equipment facing away from the bottom of the cabinet; the transmission equipment includes: a transmission power distribution unit and a transmission subframe, the transmission power distribution unit being located on the side of the transmission subframe facing away from the wireless equipment; the wireless equipment includes: a remote radio frequency unit and a baseband processing unit, the remote radio frequency unit being located on the side of the baseband processing unit facing the transmission equipment. This application further improves the space utilization within the cabinet by integrating the transmission equipment and wireless equipment into a single cabinet and optimizing the equipment placement, thereby reducing the footprint of existing base stations.

[0049] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A railway communication transmission wireless cabinet, characterized in that, include: The cabinet, the transmission device, and the wireless device are located inside the cabinet, with the transmission device located on the side of the wireless device away from the bottom of the cabinet. The transmission device includes: a transmission power distribution unit and a transmission subframe, wherein the transmission power distribution unit is located on the side of the transmission subframe opposite to the wireless device; The wireless device includes: a remote radio frequency unit and a baseband processing unit, wherein the remote radio frequency unit is located on the side of the baseband processing unit facing the transmission device.

2. The railway communication transmission wireless cabinet as described in claim 1, characterized in that, The transmission subframe includes multiple first transmission subframes, which are placed side by side along a first direction; the first direction is parallel to the plane where the bottom surface of the cabinet is located.

3. The railway communication transmission wireless cabinet as described in claim 2, characterized in that, The wireless transmission cabinet also includes a fan, which is located between the transmission device and the wireless device.

4. The railway communication transmission wireless cabinet as described in claim 3, characterized in that, The fan includes at least two first fans, which are arranged side by side along the first direction.

5. The railway communication transmission wireless cabinet as described in claim 1, characterized in that, The remote radio frequency unit includes at least two first remote radio frequency units, one of which is a spare unit.

6. The railway communication transmission wireless cabinet as described in claim 1, characterized in that, The baseband processing unit includes at least two first baseband processing units, one of which is a backup unit.

7. The railway communication transmission wireless cabinet as described in claim 6, characterized in that, The wireless transmission cabinet also includes a cable management unit, with one cable management unit corresponding to each of the first baseband processing units, and the cable management unit is located below the first baseband processing unit corresponding to it.

8. A railway communication base station, characterized in that, The base station includes the railway communication transmission wireless cabinet as described in any one of claims 1-7, and the base station further includes an outdoor communication tower, with a cable trough between the outdoor communication tower and the transmission wireless cabinet.

9. The railway communication base station as described in claim 8, characterized in that, The cable trough includes a feeder surge protector and a shielded grounding terminal, with the feeder surge protector adjacent to the shielded grounding terminal.

10. The railway communication base station as described in claim 8, characterized in that, The cable trough includes at least two pre-buried pipes with a gap between adjacent pre-buried pipes, and each pre-buried pipe includes an outdoor feeder line.

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