Gain compensation method and device based on temperature characteristics, equipment and medium

Abstract

The invention relates to the field of communication, particularly discloses a gain compensation method based on temperature characteristics, and aims to solve the problem of power instability caused by temperature change of a small base station. The method comprises three steps of firstly drawing a temperature-gain curve of a power device, then drawing a compensation curve according to the curve, and finally adjusting the power gear of a transmitter according to the compensation curve so as to maintain the stable power of a transmitting link. The invention further discloses a device corresponding to the method, equipment and a storage medium.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a gain compensation method, device, equipment and medium based on temperature characteristics. Background Art

[0002] In the field of communication technology, whether it is a traditional base station or a small base station, maintaining stable output power is one of the key factors to ensure that the base station achieves optimal performance. Traditional base stations usually need to be equipped with a dedicated temperature control room and use a complex temperature control system to maintain the stability of the internal temperature. However, for new small base stations, although they have advantages such as flexibility, low power consumption and low cost, they cannot afford the additional cost of complex temperature control systems. Instability in temperature will also affect the output power, further leading to reduced work efficiency. Summary of the invention

[0003] In view of the characteristics of small base stations, embodiments of the present invention provide a gain compensation method, apparatus, device and medium based on temperature characteristics.

[0004] A first aspect of the present invention provides a gain compensation method based on temperature characteristics, comprising the following steps:

[0005] S1: Draw the temperature-gain curve of the power device;

[0006] S2: Draw a compensation curve based on the temperature-gain curve;

[0007] S3: Adjust the transmitter power level according to the compensation curve.

[0008] Furthermore, the step S1 specifically includes: determining the change trend and quantitative data of the gain of the power device in high and low temperature environments and drawing a temperature-gain curve of the power device.

[0009] Furthermore, drawing the temperature-gain curve of the power device specifically includes:

[0010] Obtain the gain values ​​of the power device at different temperatures and plot them on the temperature-gain coordinate system;

[0011] Connect the points on the temperature-gain coordinate system to obtain a curve showing gain changing with temperature;

[0012] The temperature-gain curve is obtained by fitting the curve of gain changing with temperature using the least square method.

[0013] Furthermore, the step S2 specifically includes: inverting the slope of each point on the temperature-gain curve, and connecting the points with inverted slopes to obtain a compensation curve.

[0014] Furthermore, the slope negation specifically includes:

[0015] Taking room temperature +25 degrees as the starting point, when the temperature is higher than 25 degrees, the gain of the power device decreases as the temperature increases, that is, the slope of the temperature-gain curve -k1 is a negative number. At this time, the slope is reversed and the slope becomes a positive number k1; when the temperature is lower than 25 degrees, the gain of the power device increases as the temperature decreases, that is, the slope of the temperature-gain curve k2 is a positive number. At this time, the slope is reversed and the slope becomes a negative number -k2.

[0016] Furthermore, the step S3 specifically includes: adjusting the power of the transmitter according to the compensation curve to offset the power change caused by temperature, so that the power of the entire small base station is maintained within the calibrated power value range. The small base station includes a power device and a transmitter, and the calibrated power is the output power of the small base station to achieve optimal performance.

[0017] Further, adjusting the power of the transmitter according to the compensation curve specifically includes:

[0018] When the temperature is higher than 25 degrees, the higher the temperature, the smaller the gain of the power device. At this time, the power gear of the transmitter is increased to maintain the power of the entire transmission link within the calibrated power value range; when the temperature is lower than 25 degrees, the lower the temperature, the greater the gain of the power device. At this time, the power gear of the transmitter is reduced to maintain the power of the entire transmission link within the calibrated power value range.

[0019] A second aspect of the present invention provides a gain compensation device based on temperature characteristics, which specifically includes the following modules:

[0020] A first curve drawing module draws a link gain-temperature curve;

[0021] The second curve drawing module draws a compensation curve based on the gain-temperature curve;

[0022] The power adjustment module adjusts the power level of the transmitter according to the compensation curve.

[0023] The present invention also provides a device and a storage medium corresponding to a gain compensation method based on temperature characteristics.

[0024] In response to the problem that new small base stations cannot afford the cost of additional temperature control systems, the present invention innovatively proposes a software algorithm solution: first draw a link gain-temperature curve, then draw a compensation curve based on the gain-temperature curve, and finally adjust the transmitter power level according to the compensation curve. This solution not only reduces costs, but also avoids output power fluctuations caused by unstable temperature, thereby preventing a decrease in work efficiency. By maintaining a stable output power, small base stations can continue to provide high-quality communication services, bringing significant beneficial effects to the overall performance improvement of the communication network and the optimization of user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic flow chart of a gain compensation method based on temperature characteristics provided by an embodiment of the present invention;

[0026] Figure 2 is a downlink gain compensation curve of a gain compensation method based on temperature characteristics provided by an embodiment of the present invention;

[0027] Figure 3 It is a schematic diagram of a downlink transmission link in a gain compensation device based on temperature characteristics provided by an embodiment of the present invention;

[0028] Figure 4 is a curve showing gain variation with temperature of a gain compensation method based on temperature characteristics provided by an embodiment of the present invention;

[0029] Figure 5 is a temperature-gain curve of a gain compensation method based on temperature characteristics provided by an embodiment of the present invention;

[0030] Figure 6 The present invention provides a temperature-gain curve after compensation in a gain compensation method based on temperature characteristics. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1 As shown, the first aspect of the present invention provides a gain compensation method based on temperature characteristics, comprising the following steps:

[0033] S1: Draw the temperature-gain curve of the power device;

[0034] S2: Draw a compensation curve based on the temperature-gain curve;

[0035] S3: Adjust the transmitter power level according to the compensation curve.

[0036] Furthermore, the step S1 specifically includes: determining the change trend and quantitative data of the gain of the power device in high and low temperature environments and drawing a temperature-gain curve of the power device.

[0037] Furthermore, drawing the temperature-gain curve of the power device specifically includes:

[0038] Obtain the gain values ​​of the power device at different temperatures and plot them on the temperature-gain coordinate system;

[0039] Connect the points on the temperature-gain coordinate system to obtain a curve showing gain changing with temperature;

[0040] The temperature-gain curve is obtained by fitting the curve of gain changing with temperature using the least square method.

[0041] Furthermore, the step S2 specifically includes: inverting the slope of each point on the temperature-gain curve, and connecting the points with inverted slopes to obtain a compensation curve.

[0042] Furthermore, the slope negation specifically includes:

[0043] Taking room temperature +25 degrees as the starting point, when the temperature is higher than 25 degrees, the gain of the power device decreases as the temperature increases, that is, the slope of the temperature-gain curve -k1 is a negative number. At this time, the slope is reversed and the slope becomes a positive number k1; when the temperature is lower than 25 degrees, the gain of the power device increases as the temperature decreases, that is, the slope of the temperature-gain curve k2 is a positive number. At this time, the slope is reversed and the slope becomes a negative number -k2.

[0044] In one embodiment, Figure 2 The yellow curve shown is the compensation curve y3 = k1x, y4 = -k2x. The compensation superposition y = y1 + y3 and y = y2 + y4. After the offset, the output power will not change with temperature.

[0045] Furthermore, the step S3 specifically includes: adjusting the power of the transmitter according to the compensation curve to offset the power change caused by temperature, so that the power of the entire small base station is maintained within the calibrated power value range. The small base station includes a power device and a transmitter, and the calibrated power is the output power of the small base station to achieve optimal performance.

[0046] Further, adjusting the power of the transmitter according to the compensation curve specifically includes:

[0047] When the temperature is higher than 25 degrees, the higher the temperature, the smaller the gain of the power device. At this time, the power gear of the transmitter is increased to maintain the power of the entire transmission link within the calibrated power value range; when the temperature is lower than 25 degrees, the lower the temperature, the greater the gain of the power device. At this time, the power gear of the transmitter is reduced to maintain the power of the entire transmission link within the calibrated power value range.

[0048] A second aspect of the present invention provides a gain compensation device based on temperature characteristics, comprising the following modules:

[0049] A first curve drawing module draws a link gain-temperature curve;

[0050] The second curve drawing module draws a compensation curve based on the gain-temperature curve;

[0051] The power adjustment module adjusts the power level of the transmitter according to the compensation curve.

[0052] The present invention also provides a device and a storage medium corresponding to a gain compensation method based on temperature characteristics.

[0053] In one embodiment of the present invention, a small base station named Pico RU is provided. Pico RU is designed for indoor environments, has a low power level, and maintains a preset rated power during operation without dynamic adjustment. The working environment temperature conditions of the small base station are relatively mild, and the temperature variation range is small, so the small base station is suitable for using software algorithms to implement temperature compensation to optimize performance. The present invention uses a gain compensation method based on temperature characteristics on the Pico RU small base station to ensure that the RU output power remains within the calibration range under different temperature conditions.

[0054] In order to make the power of the small base station vary near the rated power, accurate power calibration is required, and temperature gain compensation is superimposed on this basis. Figure 3 The downlink shown uses a low noise amplifier and an amplifier. For a general low noise amplifier and an amplifier, their temperature characteristics are: the gain will increase in a low temperature environment, and the gain will decrease in a high temperature environment. Based on this characteristic, the present invention proposes the following solution.

[0055] Step 1: Plot the link gain-temperature curve.

[0056] By conducting temperature experiments to determine the gain change trend and quantitative data of the link in high and low temperature environments, a curve of gain change with temperature is drawn, and the following is obtained: Figure 4 The gain curve with temperature is shown. This curve needs to be fitted. Curve linearization is an important means of curve fitting. In this scenario, the least squares fitting is used to linearize the curve. Specifically, assuming that the curve has y = f (x, c), when the actual observed value at each point has a deviation of e k =y k -f(x k ,c) is the smallest, the fitting curve can be obtained. After fitting, we can get Figure 5 The temperature-gain curve is shown.

[0057] Step 2: Reverse the slope of each point on the temperature-gain curve, and connect the points with reversed slopes to obtain the compensation curve.

[0058] The power of the power device decreases as the temperature increases. At this time, the slope of the temperature-gain curve obtained in step 1 is reversed, and the slope becomes a positive number, and the compensation curve can be obtained.

[0059] Step 3: Adjust the transmitter power level according to the compensation curve.

[0060] The power of the transmitter is adjusted according to the compensation curve to offset the power changes caused by temperature, so that the power of the entire small base station is maintained within the calibrated power value range. The calibrated power is the output power of the small base station for optimal performance. The underlying principle of temperature compensation is that as the temperature rises, the output power of the power device decreases. At this time, the power level of the transmitter is increased to offset the power changes caused by temperature, and ultimately the output power of the small base station remains unchanged. When the temperature drops, the low temperature increases the output power of the power device. At this time, the power level of the transmitter is reduced again to offset the power changes caused by temperature, and ultimately the output power of the small base station remains unchanged. Finally, the following can be obtained: Figure 6 The compensated temperature-gain curve is shown.

[0061] In response to the problem that new small base stations cannot afford the cost of additional temperature control systems, the present invention innovatively proposes a software algorithm solution: first draw a link gain-temperature curve, then draw a compensation curve based on the gain-temperature curve, and finally adjust the transmitter power level according to the compensation curve. This solution not only reduces costs, but also avoids output power fluctuations caused by unstable temperature, thereby preventing a decrease in work efficiency. By maintaining a stable output power, small base stations can continue to provide high-quality communication services, bringing significant beneficial effects to the overall performance improvement of the communication network and the optimization of user experience.

[0062] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A gain compensation method based on temperature characteristics, characterized in that: The specific steps include: S1: Draw the temperature-gain curve of the power device; S2: Draw a compensation curve based on the temperature-gain curve; S3: Adjust the transmitter power level according to the compensation curve.

2. A gain compensation method based on temperature characteristics as claimed in claim 1, characterized in that: The step S1 specifically includes: determining the change trend and quantitative data of the gain of the power device in high and low temperature environments and drawing a temperature-gain curve of the power device.

3. A gain compensation method based on temperature characteristics as claimed in claim 2, characterized in that: Drawing the temperature-gain curve of the power device specifically includes: Obtain the gain values ​​of the power device at different temperatures and plot them on the temperature-gain coordinate system; Connect the points on the temperature-gain coordinate system to obtain a curve showing gain changing with temperature; The temperature-gain curve is obtained by fitting the curve of gain changing with temperature using the least square method.

4. A gain compensation method based on temperature characteristics as claimed in claim 1, characterized in that: The step S2 specifically includes: inverting the slope of each point on the temperature-gain curve, and connecting the points with inverted slopes to obtain a compensation curve.

5. A gain compensation method based on temperature characteristics as claimed in claim 4, characterized in that: The slope negation specifically includes: Taking room temperature +25 degrees as the starting point, when the temperature is higher than 25 degrees, the gain of the power device decreases as the temperature increases, that is, the slope of the temperature-gain curve -k1 is a negative number. At this time, the slope is reversed and the slope becomes a positive number k1; when the temperature is lower than 25 degrees, the gain of the power device increases as the temperature decreases, that is, the slope of the temperature-gain curve k2 is a positive number. At this time, the slope is reversed and the slope becomes a negative number -k2.

6. A gain compensation method based on temperature characteristics as claimed in claim 1, characterized in that: The step S3 specifically includes: adjusting the power of the transmitter according to the compensation curve to offset the power change caused by temperature so that the power of the entire small base station is maintained within the calibrated power value range. The small base station includes a power device and a transmitter, and the calibrated power is the output power of the small base station to achieve optimal performance.

7. A gain compensation method based on temperature characteristics as claimed in claim 6, characterized in that: The step of adjusting the power of the transmitter according to the compensation curve specifically includes: When the temperature is higher than 25 degrees, the higher the temperature, the smaller the gain of the power device. At this time, the power gear of the transmitter is increased to maintain the power of the entire transmission link within the calibrated power value range; when the temperature is lower than 25 degrees, the lower the temperature, the greater the gain of the power device. At this time, the power gear of the transmitter is reduced to maintain the power of the entire transmission link within the calibrated power value range.

8. A gain compensation device based on temperature characteristics, characterized in that: The modules include: A first curve drawing module draws a link gain-temperature curve; The second curve drawing module draws a compensation curve based on the gain-temperature curve; The power adjustment module adjusts the power level of the transmitter according to the compensation curve.

9. A device, characterized in that: The invention comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, a gain compensation method based on temperature characteristics as claimed in any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute a gain compensation method based on temperature characteristics according to any one of claims 1 to 7.

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