Platform communication base station

Abstract

The invention discloses a platform communication base station, and relates to the technical field of communication base stations, and the platform communication base station comprises a housing which comprises an upper housing and a lower housing which are fixedly connected with each other, and the lower housing is internally provided with a mounting groove; the plurality of functional modules are detachably and fixedly mounted in the mounting grooves through fixing pieces respectively; and the upper shell is integrally provided with a cavity filter. The multiple functional modules are detachably arranged in the mounting grooves of the lower shell through the fixing pieces to serve as one part of equipment, the cavity filter is arranged to serve as the upper shell to serve as the other part of the equipment, all the functional modules can be independently designed and maintained, and when one or more modules are abnormal, maintenance or replacement is convenient.

Description

Technical Field

[0001] This application relates to the technical field of communication base stations, and particularly to a platform-based communication base station. Background Art

[0002] In current RRU communication devices, in order to achieve the function of remote radio frequency signal transmission, the device usually includes a power module, a digital unit module (with built-in lightning protection function), a power amplifier module, a cavity filter module, and related structural parts, connectors, and cables. These components will have different system structure solutions through different planning and layouts.

[0003] In the current mainstream system layout scheme, the main functional modules are all in the upper housing of the device. The cavity filter is the other half of the device and is in the upper housing of the device. The integrated large board includes a power lightning protection part, a digital part, and a power amplification part. This layout design is simple and saves the use of some connecting cables.

[0004] However, since this integrated large board integrates multiple modules, if one or more of these modules malfunction under unstable initial conditions, it will inevitably lead to the need to maintain the entire large board or even scrap it, resulting in high maintenance costs. Moreover, RRU devices usually have application requirements for multiple different frequency bands. Different frequency bands bring different power amplifier module solutions, and different large board designs will correspond to different frequency bands, increasing more maintenance and scrapping risks. Summary of the Invention

[0005] In order to meet the requirements of device size, facilitate the maintenance or replacement between modules, and reduce maintenance costs, this application provides a platform-based communication base station.

[0006] A platform-based communication base station provided by this application adopts the following technical solutions:

[0007] A platform-based communication base station includes:

[0008] A housing, the housing includes an upper housing and a lower housing that are fixedly connected to each other, and an installation groove is provided in the lower housing;

[0009] Multiple functional modules, the multiple functional modules are respectively detachably and fixedly installed in the installation groove through fixing parts;

[0010] The upper housing is integrally provided with a cavity filter.

[0011] By adopting the above technical solutions, multiple functional modules are detachably arranged in the installation groove of the lower housing through fixing parts as a part of the device, and the cavity filter is set as the upper housing as another part of the device, so that each functional module can be designed and maintained separately. When one or more modules malfunction, it is convenient for repair or replacement.

[0012] Optionally, the multiple functional modules include a power amplifier module, a digital unit module, a power supply module, and a lightning protection module.

[0013] By adopting the above technical solution, when dealing with different frequency bands and power requirements, only the power amplifier module of the RRU device needs to be replaced. The external dimensions and mounting hole positions of the power amplifier modules for different frequency bands are made compatible and unified, facilitating direct replacement of the modules. This enables the subsequent upper housing size to be processed in the form of a mold with a unified mold, reducing costs.

[0014] Optionally, the orthographic projection areas of the multiple functional modules on the upper housing are arranged at intervals from each other, and the minimum distance between each projection area is greater than or equal to a preset value.

[0015] Optionally, the cavity filter includes a plurality of transmitting ports and a plurality of receiving ports. The plurality of transmitting ports are arranged side by side on the side wall of the cavity filter close to the lower housing for connection and cooperation with the power amplifier module; the plurality of receiving ports are arranged side by side on the side wall of the cavity filter close to the lower housing for connection and cooperation with the digital unit module.

[0016] Optionally, an annular sealing groove is provided at the edge of the side wall of the lower housing close to the upper housing, and a sealing platform for plugging and cooperating with the annular sealing groove is fixedly provided at the edge of the upper housing.

[0017] Optionally, a sealing ring is embedded in the sealing groove.

[0018] Optionally, the height of the sealing platform is greater than the lengths of the transmitting ports and the receiving ports.

[0019] Optionally, a positioning hole is provided on the side wall of the lower housing close to the upper housing, and a positioning pin for inserting into the positioning hole is fixedly provided on the upper housing.

[0020] Optionally, heat dissipation copper blocks are provided between the power amplifier module and the bottom wall of the installation groove, and a plurality of heat dissipation copper blocks are arranged at intervals.

[0021] Optionally, a groove is provided on the bottom wall of the installation groove, and the heat dissipation copper blocks are embedded in the groove.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] A plurality of functional modules are detachably arranged in the installation groove of the lower housing through fixing parts as a part of the device, and the cavity filter is set as the upper housing as another part of the device, so that each functional module can be designed and maintained separately. When one or more modules malfunction, it is convenient for repair or replacement. When meeting different frequency band and power requirements, only the power amplifier module of the RRU device needs to be replaced. The external dimensions and mounting hole positions of the power amplifier modules for different frequency bands are compatible and unified, facilitating direct replacement of the module. This enables the upper housing size of the subsequent device to be processed in the form of a mold with a unified mold, reducing costs. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the prior art 1 of the present application;

[0025] Figure 2 is the structural schematic diagram of the prior art 2 of the present application;

[0026] Figure 3 is the overall structural schematic diagram of the embodiment of the present application;

[0027] Figure 4 is the structural schematic diagram mainly showing the lower housing of the embodiment of the present application;

[0028] Figure 5 is the structural schematic diagram mainly showing the cavity filter of the embodiment of the present application.

[0029] Description of the Reference Numerals: 1. Lower housing; 11. Annular sealing groove; 111. Sealing ring; 12. Installation groove; 121. Groove; 2. Upper housing; 22. Sealing platform; 3. Power amplifier module; 4. Digital unit module; 5. Power supply module; 6. Lightning protection module; 7. Heat dissipation copper block; 8. Cavity filter; 81. Antenna port; 82. Transmitting port; 83. Receiving port; 100. Lower housing; 101. Cavity filter; 102. Integrated large board; 103. Power amplifier module; 104. Digital board module; 105. Power supply module. Detailed Embodiment

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0034] Currently, the mainstream system layout schemes of base station RRU devices include two types. Scheme one, as Figure 1 shown, the main functional modules are all in the lower housing 100 of the device. The cavity filter 101 is the other half component of the device and is in the upper housing of the device. The integrated large board 102 includes a power lightning protection part, a digital part, and a power amplification part. Such a layout design is simple and saves the use of some connecting cables.

[0035] However, since this integrated large board 102 integrates multiple modules, if one or more of these modules are abnormal under the unstable state in the early stage, it will inevitably lead to the need to maintain the entire large board or even scrap it, resulting in high maintenance costs. And RRU devices usually have application requirements for multiple different frequency bands. Different frequency bands bring different power amplification module schemes, and different large board designs will correspond to different frequency bands, increasing more maintenance and scrap risks.

[0036] Scheme two, as Figure 2As shown in the figure, the digital board module 104 and the power supply module 105 of the RRU device are designed independently and placed in the upper housing of the RRU device. The power amplifier module 103 and the cavity filter 101 of the RRU device are placed on the other side of the device, and are connected and communicate with each other through connectors or cables. Compared with Solution 1, in this Solution 2, each module is designed independently and maintained separately, avoiding the interference of defective products between modules and causing unnecessary maintenance and scrapping. However, the Solution 2 shown in the figure also has deficiencies in some cases. As mentioned above, for the RRU device under different frequency band requirements and application scenarios, there are differences in the power amplifier module 103 and the cavity filter 101. Especially in the case of low-frequency band application scenarios, even if the size of the power amplifier module 103 remains unchanged, due to the low-frequency band, it is very difficult for the cavity filter 101 to be compatible in terms of structural size. It is very likely that the size will become larger and it will no longer be possible to adapt to the upper housing part of the RRU, which will inevitably lead to the re-planning of the overall structural parts. Therefore, Figure 2 The solution still needs to be improved.

[0037] For this reason, an embodiment of the present application discloses a platform-based communication base station.

[0038] Referring to Figure 3 , a platform-based communication base station includes a housing and multiple functional modules. The housing includes an upper housing 2 and a lower housing 1 that are fixedly connected to each other. An installation groove 12 is provided in the lower housing 1, and the overall housing is a rectangular structure.

[0039] Optionally, referring to Figure 3 , the multiple functional modules are respectively detachably and fixedly installed in the installation groove 12 through fixing members. The multiple functional modules include a power amplifier module 3, a digital unit module 4, a power supply module 5, and a lightning protection module 6. The digital unit module 4 and the power supply module 5 are arranged side by side along the width direction of the housing, and the digital unit module 4 and the power amplifier module 3 are arranged along the length direction of the housing. Specifically, the fixing member can be a screw.

[0040] The orthogonal projection areas of the multiple functional modules on the upper housing 2 are spaced apart from each other, and the minimum distance between the projection areas is greater than or equal to a preset value. The preset value can be 1-3 mm. This enables the multiple functional modules to be spaced apart on the same installation plane, preventing interference with other functional modules when a certain functional module needs to be repaired or replaced.

[0041] Among them, the power amplifier module 3 is a key component mainly used for amplifying signals, responsible for amplifying the radio frequency (RF) signals generated by the base station to ensure that the signals can cover a large range and be transmitted to user terminals. The power amplifier module 3 is the core part of realizing wireless communication in a 5G base station. Especially in the uplink and downlink of the base station, the power amplifier module 3 plays a crucial role.

[0042] The digital unit module 4 is usually responsible for signal processing, control, data exchange, network interface, etc. of the base station. Digital signal processing: The digital unit is responsible for digitizing the received analog signal and converting it into a digital signal that the base station can understand. Digital signal processing includes operations such as modulation and demodulation, error checking, encoding and decoding. Baseband signal processing: The digital unit performs baseband signal processing, and these baseband signals come from the wireless access part (radio unit). For example, operations such as modulation and demodulation, waveform generation and recovery are performed.

[0043] The power supply module 5 is responsible for providing stable and reliable power support for the entire base station system to ensure the normal operation of the base station and avoid system interruption or failure caused by power problems. The lightning protection module 6 is to protect the base station equipment from damage caused by lightning and other electrical overvoltages, including structures such as lightning arresters and grounding systems.

[0044] Optionally, referring to Figure 4 , between the power amplifier module 3 and the bottom wall of the installation groove 12, a plurality of heat dissipation copper blocks 7 are arranged at intervals. The positions of the heat dissipation copper blocks 7 correspond to the positions of the power amplifier tubes of the power amplifier module 3, that is, the installation positions of the heat dissipation copper blocks 7 are the positions of the power amplifier tubes of the power amplifier module 3. The power amplifier tubes of the power amplifier module 3 are the main heat sources. The heat dissipation copper blocks 7 are made of copper and have a high thermal conductivity coefficient, which can quickly conduct the heat generated by the power amplifier tubes to the lower housing 1 made of metal material for effective heat dissipation through the lower housing 1.

[0045] Specifically, referring to Figure 4 , a groove 121 is opened on the bottom wall of the installation groove 12, and the heat dissipation copper block 7 is embedded in the groove 121. A groove 121 is opened on the lower housing 1 for avoidance. The depth of the groove 121 is equal to or slightly less than the thickness of the heat dissipation copper block 7. The heat dissipation copper block 7 is arranged in the groove 121 to play a role in accommodating the heat dissipation copper block 7. A heat conduction layer is arranged between the heat dissipation copper block 7 and the bottom wall of the groove 121. The heat conduction layer is heat conduction silicone grease. Before installing the heat dissipation copper block 7, heat conduction silicone grease is applied in the groove 121 as the heat conduction layer to further improve the heat conduction ability and facilitate the heat dissipation of the power amplifier module 3. Since the heat generation of the power amplifier module 3 here is relatively large, heat conduction silicone grease with good heat conduction performance and meeting high reliability requirements is often selected.

[0046] Referring to Figure 5 , the upper housing 2 is integrally provided with a cavity filter 8, and the length and width dimensions of the cavity filter 8 are adapted to the lower housing 1. The cavity filter 8 of the present application is another part of the device. Multiple frequency bands can be compatible with the same external dimension, ensuring that the current external dimension can meet the inner cavity requirements of the filters of all models of the platform. Even if there is a low-frequency band requirement, only its thickness dimension needs to be increased, and the length and width dimensions remain unchanged, thus not affecting the overall assembly with the upper cover of the device.

[0047] Optionally, referring to Figure 5 , the cavity filter 8 includes a plurality of antenna ports 81, a plurality of transmitting ports 82, and a plurality of receiving ports 83. The antenna ports 81 are provided at one end of the cavity filter 8. The plurality of transmitting ports 82 are arranged side by side on the side wall of the cavity filter 8 close to the lower housing 1 for connecting and cooperating with the power amplifier module 3. The plurality of receiving ports 83 are arranged side by side on the side wall of the cavity filter 8 close to the lower housing 1 for connecting and cooperating with the digital unit module 4. This application is for a four-channel device, and four antenna ports 81, transmitting ports 82, and receiving ports 83 are provided. For a device that only requires 2 channels, only two channels need to be reduced on this basis without moving the position of the antenna port 81.

[0048] In this application, the transmitting ports 82 and receiving ports 83 of the cavity filter 8 are respectively connected and cooperated with the power amplifier module 3 and the digital unit module 4 of the RRU device through blind-mating RF connectors. Since the external dimensions and installation positions of the power amplifier module 3 and the digital unit module 4 remain unchanged, the position dimensions of the transmitting ports 82 and receiving ports 83 in the cavity filter 8 also remain unchanged. This facilitates subsequent filter processing in the form of a mold to achieve mold unity. Since the size and position of the antenna port 81 of the cavity filter 8 need to be unified, this embodiment is a schematic diagram of a four-channel device. If the device requires 2 channels, only two channels need to be reduced on this basis without moving the position of the antenna port 81.

[0049] Optionally, referring to Figure 4 and Figure 5 , a circular sealing groove 11 is provided at the edge of the side wall of the lower housing 1 close to the upper housing 2. A sealing platform 22 for plugging and cooperating with the circular sealing groove 11 is fixedly provided at the edge of the upper housing 2. The width of the sealing platform 22 is adapted to the width of the sealing groove. A sealing ring 111 is embedded in the sealing groove, and the sealing ring 111 can be a rubber ring. The cooperation between the sealing groove and the sealing platform 22 effectively prevents external moisture or dust from entering the housing.

[0050] Optionally, the height of the sealing platform 22 is greater than the lengths of the transmitting ports 82 and receiving ports 83. The sealing platform 22 serves to protect the transmitting ports 82 and receiving ports 83, preventing damage to the ports caused by the extrusion of other functional modules when the upper housing 2 and the lower housing 1 are misaligned during installation.

[0051] Positioning holes are provided on the side wall of the lower housing 1 close to the upper housing 2, and positioning pins for inserting into the positioning holes are fixedly provided on the upper housing 2. Threaded holes are provided at the edges of both the upper housing 2 and the lower housing 1, and the upper housing 2 and the lower housing 1 are fixedly connected by screws. When installing the upper housing 2 and the lower housing 1, the positioning pins are inserted into the positioning holes to achieve a preliminary positioning effect and prevent the upper housing 2 from shifting when installing the screws.

[0052] The implementation principle of the embodiments of this application is as follows: In this application, multiple functional modules are detachably arranged in the installation groove 12 of the lower housing 1 through fixing parts as a part of the device, and the cavity filter 8 is set as the upper housing 2 as another part of the device, so that each functional module can be designed and maintained separately. When one or more modules malfunction, it is convenient for repair or replacement. When meeting different frequency band and power requirements, only the power amplifier module 3 of the RRU device needs to be replaced. The external dimensions and mounting hole positions of the power amplifier modules 3 with different frequency bands are made compatible and unified, facilitating direct replacement of the modules. This enables the upper housing 2 of the subsequent device to be processed in the form of a mold with a unified mold, reducing costs.

[0053] The above are all the preferred embodiments of this application. Without restricting the protection scope of this application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A platform communication base station, characterized in that: include: A housing, the housing comprising an upper housing (2) and a lower housing (1) which are fixedly connected to each other, and a mounting groove (12) is provided in the lower housing (1); A plurality of functional modules, each of which is detachably fixedly mounted in the mounting groove (12) via a fixing member; The upper housing (2) is integrally provided with a cavity filter (8).

2. A platform communication base station according to claim 1, characterized in that: The multiple functional modules include a power amplifier module (3), a digital unit module (4), a power supply module (5) and a lightning protection module (6).

3. A platform communication base station according to claim 2, characterized in that: The plurality of functional modules are arranged at intervals in orthogonal projection areas on the upper housing (2), and the minimum spacing between the projection areas is greater than or equal to a preset value.

4. A platform communication base station according to claim 2, characterized in that: The cavity filter (8) comprises a plurality of transmitting ports (82) and a plurality of receiving ports (83); the plurality of transmitting ports (82) are arranged side by side on the side wall of the cavity filter (8) close to the lower shell (1) for connection with the power amplifier module (3); the plurality of receiving ports (83) are arranged side by side on the side wall of the cavity filter (8) close to the lower shell (1) for connection with the digital unit module (4).

5. A platform communication base station according to claim 4, characterized in that: The lower shell (1) is provided with an annular sealing groove (11) at the edge of the side wall close to the upper shell (2), and the edge of the upper shell (2) is fixedly provided with a sealing platform (22) for plugging and matching with the annular sealing groove (11).

6. A platform communication base station according to claim 5, characterized in that: A sealing ring (111) is embedded in the annular sealing groove (11).

7. A platform communication base station according to claim 5, characterized in that: The height of the sealing platform (22) is greater than the length of the transmitting port (82) and the receiving port (83).

8. A platform communication base station according to claim 6, characterized in that: A positioning hole is provided on the side wall of the lower shell (1) close to the upper shell (2), and a positioning pin for inserting into the positioning hole is fixedly provided on the upper shell (2).

9. A platform communication base station according to claim 2, characterized in that: A heat dissipation copper block (7) is arranged between the power amplifier module (3) and the bottom wall of the installation groove (12), and a plurality of the heat dissipation copper blocks (7) are arranged at intervals.

10. A platform communication base station according to claim 9, characterized in that: The bottom wall of the installation groove (12) is provided with a groove (121), and the heat dissipation copper block (7) is embedded in the groove (121).

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