A radio frequency remote unit and a distributed base station system

Abstract

This application relates to the field of communication equipment technology, and in particular to a radio frequency remote unit and a distributed base station system. The radio frequency remote unit includes a control element, a heating element, a first power supply, and a temperature controller. The heating element is attached to the surface of the control element, and the heating element, the temperature controller, and the first power supply are connected in series. By avoiding the control element being in a low-temperature environment, the normal operation of the radio frequency remote unit is ensured, and the communication service quality of the communication base station at low temperatures is improved.

Description

Technical Field

[0001] This application relates to the field of communication equipment technology, and in particular to a radio frequency remote unit and a distributed base station system. Background Technology

[0002] In communication base stations, remote radio units (RRUs) are used to convert baseband signals into radio frequency signals and amplify them for output. However, in the existing technology, in winter or extremely cold temperatures, the control chips and other electronic components inside the RRU may fail to operate or start properly due to the low temperature, which in turn causes the RRU to malfunction and reduces the communication service quality of the communication base station. Summary of the Invention

[0003] In view of the above-mentioned problems in the prior art, the purpose of this application is to avoid the control components being in a low-temperature environment, thereby ensuring the normal operation of the radio frequency remote unit and improving the communication service quality of the communication base station at low temperatures.

[0004] To address the aforementioned problems, this application provides a radio frequency remote unit, including a control element, a heating element, a first power supply, and a temperature controller.

[0005] The heating element is attached to the surface of the control element, and the heating element, the temperature controller, and the first power supply are connected in series.

[0006] In this embodiment, the non-adhesive surface of the heating element is provided with heat insulation material, and the non-adhesive surface refers to the surface other than the surface adhering to the control element.

[0007] In this embodiment, the radio frequency remote unit further includes a second power supply, which is electrically connected to the control element.

[0008] In this embodiment of the application, the first power supply and the second power supply are located on the same horizontal plane, and the first power supply and the heating element are located on opposite sides of the control element.

[0009] In this embodiment of the application, the rated voltage of the second power supply is greater than the rated voltage of the first power supply.

[0010] In this embodiment, the temperature controller is positioned close to the control element.

[0011] In this embodiment, the thermostat is positioned in conjunction with the heating element.

[0012] In this embodiment of the application, the heating element is a constant temperature ceramic heating element.

[0013] On the other hand, this application also provides a distributed base station system, the system including a baseband processing unit, a radio frequency remote unit as described in the embodiments of this application, and an antenna feeder unit. The baseband processing unit is connected to the radio frequency remote unit via an optical fiber, and the radio frequency remote unit is connected to the antenna feeder unit via a coaxial cable.

[0014] Due to the above technical solution, the radio frequency remote unit described in this application has the following beneficial effects:

[0015] By setting a heating element, a first power supply, and a temperature controller inside the radio frequency remote unit, and attaching the heating element to the surface of the control element, the heating element can heat the control element when the temperature controller is turned on, avoiding the impact of low temperature environment on the operation of the control element, thereby ensuring the normal operation of the radio frequency remote unit and improving the communication service quality of the communication base station at low temperatures. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 is a schematic diagram of the structure of a radio frequency remote unit provided in an embodiment of this application;

[0018] Figure 2 is a schematic diagram of the electrical connection of the heating element in a radio frequency remote unit provided in an embodiment of this application.

[0019] Among them, 1-control element, 2-heating element, 3-first power supply, 4-temperature controller. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0022] Combination Figure 1-2 This application provides a radio frequency remote unit, including a control element 1, a heating element 2, a first power supply 3, and a temperature controller 4. The heating element 2 is attached to the surface of the control element 1, and the heating element 2, the temperature controller 4, and the first power supply 3 are connected in series.

[0023] In this embodiment, the control element 1 is an electronic component such as an MCU within the radio frequency remote unit; the temperature controller 4 is an automatic control element 1 that controls the operation of the heating element 2 by monitoring changes in ambient temperature. Specifically, when the ambient temperature is low (less than a first preset temperature threshold), the temperature controller 4 is in the on state, and current flows through the heating element 2; when the ambient temperature is high (greater than a second preset temperature threshold), the temperature controller 4 is in the off state, and since the second preset temperature threshold is greater than the first preset temperature threshold, current cannot flow through the heating element 2; the first power supply 3 is used to supply power to the heating element 2; when current flows through the heating element 2, the heating element 2 heats up.

[0024] In a specific embodiment of this application, the heating element 2, the temperature controller 4, and the first power supply 3 are connected in series to form a closed loop.

[0025] In this embodiment of the application, by setting a heating element 2, a first power supply 3 and a temperature controller 4 in the radio frequency remote unit, and attaching the heating element 2 to the surface of the control element 1, the heating element 2 can heat the control element 1 when the temperature controller 4 is turned on, so as to avoid the low temperature environment from affecting the operation of the control element 1, thereby ensuring the normal operation of the radio frequency remote unit and improving the communication service quality of the communication base station at low temperatures.

[0026] In this embodiment, the non-adhesive surface of the heating element 2 is provided with heat insulation material. The non-adhesive surface refers to the surface other than the adhesive control element 1.

[0027] In this embodiment, by providing heat insulation material on the non-contact surface of the heating element 2, the heat emitted by the heating element 2 can be dissipated to the surface of the control element 1, avoiding unnecessary heat loss, thereby improving the reliability of the heating element 2 heating the control element 1 and improving the reliability of the radio frequency remote unit operation.

[0028] In this embodiment, the radio frequency remote unit further includes a second power supply, which is electrically connected to the control element 1.

[0029] In this embodiment, by setting the first power supply 3 that supplies power to the heating element 2 and the second power supply that supplies power to the control element 1 respectively, the working interference between the heating element 2 and the control element 1 is avoided, the reliability of the radio frequency remote unit is improved, and the communication service quality of the communication base station at low temperature is improved.

[0030] In this embodiment of the application, the first power supply 3 and the second power supply are located on the same horizontal plane, and the first power supply 3 and the heating element 2 are located on both sides of the control element 1.

[0031] In this embodiment of the application, by setting the first power supply 3 and the second power supply on the same horizontal plane, and setting the first power supply 3 and the heating element 2 on both sides of the control element 1, the structural layout inside the radio frequency remote unit is simplified, thereby reducing the volume of the radio frequency remote unit.

[0032] In this embodiment of the application, the rated voltage of the second power supply is greater than the rated voltage of the first power supply 3.

[0033] In a specific embodiment of this application, the rated voltage of the second power supply can be 48V; the rated voltage of the first power supply 3 can be 12V.

[0034] In this embodiment, the temperature controller 4 is positioned close to the control element 1.

[0035] In this embodiment of the application, by placing the temperature controller 4 close to the control element 1, it is possible to ensure that the ambient temperature monitored by the temperature controller 4 is equal to the ambient temperature of the control element 1, thereby reducing the start-up error of the heating element 2, improving the reliability of the radio frequency remote unit, and improving the communication service quality of the communication base station at low temperatures.

[0036] In this embodiment, the thermostat 4 is attached to the heating element 2.

[0037] In this embodiment, by attaching the temperature controller 4 to the heating element 2, the temperature controller 4 can collect the specific temperature of the heating element 2 and turn it off when the heating element 2 is heated to the second preset temperature threshold, thereby avoiding damage to the control element 1 due to excessive heating temperature of the heating element 2, improving the reliability of the radio frequency remote unit and improving the communication service quality of the communication base station at low temperatures.

[0038] In a specific embodiment of this application, the temperature detection range of the thermostat 4 is -55℃ to +150℃, and the temperature detection accuracy of the thermostat 4 is ±0.1℃.

[0039] In this embodiment, the heating element 2 is a constant-temperature ceramic heating element.

[0040] In the embodiments of this application, the constant temperature ceramic heating element is a high-efficiency heating device based on the material properties of PTC (positive temperature coefficient).

[0041] The working principle of the radio frequency remote unit in this embodiment is as follows:

[0042] When the temperature controller 4 detects that the ambient temperature is lower than the first preset temperature threshold, the temperature controller 4 changes from the off state to the on state, the first power supply 3 supplies power to the heating element 2, and the heating element 2 heats up; the controller will not fail to start due to the low temperature.

[0043] When the temperature controller 4 detects that the ambient temperature is higher than the second preset temperature threshold, the temperature controller 4 changes from the on state to the off state, the heating element 2 is de-energized, and the heating element 2 stops heating.

[0044] The radio frequency remote unit provided in this application embodiment has the following beneficial effects:

[0045] By setting a heating element 2, a first power supply 3, and a temperature controller 4 in the radio frequency remote unit, and attaching the heating element 2 to the surface of the control element 1, the heating element 2 can heat the control element 1 when the temperature controller 4 is turned on, thus avoiding the impact of low temperature environment on the operation of the control element 1, thereby ensuring the normal operation of the radio frequency remote unit and improving the communication service quality of the communication base station at low temperatures.

[0046] The embodiments of this application also provide a distributed base station system, which includes a baseband processing unit, a radio frequency remote unit as described in the embodiments of this application, and an antenna feeder unit. The baseband processing unit is connected to the radio frequency remote unit via optical fiber, and the radio frequency remote unit is connected to the antenna feeder unit via a coaxial cable.

[0047] In this embodiment, the distributed base station plays the same role as the radio frequency remote unit described above, and will not be elaborated further here.

[0048] The foregoing description has fully disclosed the specific embodiments of this application. It should be noted that any modifications made by those skilled in the art to the specific embodiments of this application do not depart from the scope of the claims. Accordingly, the scope of the claims of this application is not limited to the foregoing specific embodiments.

Claims

1. A radio frequency remote unit, characterized in that, It includes a control element (1), a heating element (2), a first power supply (3), and a temperature controller (4). The heating element (2) is attached to the surface of the control element (1), and the heating element (2), the temperature controller (4) and the first power supply (3) are connected in series.

2. The radio frequency remote unit according to claim 1, characterized in that, The heating element (2) has a heat-insulating material on its non-adhesive surface, which refers to the surface other than the surface that is attached to the control element (1).

3. The radio frequency remote unit according to claim 1, characterized in that, It also includes a second power supply, which is electrically connected to the control element (1).

4. The radio frequency remote unit according to claim 3, characterized in that, The first power source (3) and the second power source are located on the same horizontal plane, and the first power source (3) and the heating element (2) are located on both sides of the control element (1).

5. The radio frequency remote unit according to claim 3, characterized in that, The rated voltage of the second power supply is greater than the rated voltage of the first power supply (3).

6. The radio frequency remote unit according to claim 1, characterized in that, The temperature controller (4) is positioned close to the control element (1).

7. The radio frequency remote unit according to claim 6, characterized in that, The temperature controller (4) is attached to the heating element (2).

8. The radio frequency remote unit according to claim 1, characterized in that, The heating element (2) is a constant temperature ceramic heating element.

9. A distributed base station system, characterized in that, It includes a baseband processing unit, a radio frequency remote unit as described in any one of claims 1-8, and an antenna feeder unit, wherein the baseband processing unit is connected to the radio frequency remote unit via an optical fiber, and the radio frequency remote unit is connected to the antenna feeder unit via a coaxial cable.

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