A digital 4G and 5G micro-power repeater large-area coverage system

Abstract

The present invention discloses a digital 4G, 5G micro-power repeater large-area coverage system, which relates to the field of signal frequency amplification technology, and solves the problem that during the signal enhancement process, there will be interference from external co-frequency signals, which will cause the quality of the signal to be affected when the signal is covered over a large area. The present invention identifies the relevant frequencies that are interfered with by the signal frequency and the relevant changes in the corresponding signal strength, optimizes the use frequency of the signal, and ensures that there is no co-frequency interference in the subsequently selected frequency, thereby not only ensuring the large-area coverage of the signal, but also fully ensuring the signal quality, and achieving better use effect. For the demand signal without relevant frequency, the corresponding use frequency interval is determined from the corresponding relevant frequency, and then the optimal use range is locked from the determined use frequency interval, so as to fully ensure the corresponding signal strength and signal quality.

Description

Technical Field

[0001] The present invention relates to the technical field of signal frequency amplification, and in particular to a digital 4G, 5G micro-power repeater large-area coverage system. Background Art

[0002] The repeater is composed of antenna, RF duplexer, low noise amplifier, mixer, electrically adjustable attenuator, filter, power amplifier and other components or modules, including uplink and downlink amplification links. Its basic working principle is: the downlink signal of the base station is received into the repeater by the forward antenna (donor antenna), the useful signal is amplified by the low noise amplifier, the noise signal in the signal is suppressed, and the signal-to-noise ratio (S / N) is improved; then it is down-converted to the intermediate frequency signal, filtered by the filter, amplified by the intermediate frequency, and then up-converted to the radio frequency by frequency shifting, amplified by the power amplifier, and transmitted to the mobile station by the backward antenna (retransmission antenna); at the same time, the uplink signal of the mobile station is received by the backward antenna, and processed by the uplink amplification link along the opposite path: that is, it is transmitted to the base station through the low noise amplifier, down converter, filter, intermediate amplifier, up converter, power amplifier.

[0003] The application with publication number CN114301405A discloses a microwave amplifier control method and system, comprising the following steps: S1: the microwave amplifier receives a microwave signal from a signal source, and sends the microwave signal into a microwave amplification link for power amplification; S2: in the process of power amplification, the output signal of each stage of amplification circuit included in the microwave amplifier is collected, each stage of output signal is subjected to noise reduction processing, each stage of output signal is analyzed, the real-time power gain of each stage of amplification circuit is calculated, and the driving power supply level of each stage of amplification circuit is adjusted according to the real-time power gain of each stage of amplification circuit; S3: in the process of power amplification, the real-time operating temperature of different areas of the microwave amplifier is collected, and the heat dissipation intensity of the radiator connected to the microwave amplifier is controlled according to the real-time operating temperature of different areas until the real-time operating temperature of the microwave amplifier is restored to a preset temperature; S4: the microwave signal after power amplification is fed back to the signal source.

[0004] When a micro-power repeater amplifies the signal frequency, the frequency of the signal will change accordingly. During the change, there will be interference from external signals of the same frequency, which will affect the quality of the signal when it covers a large area, resulting in the inability to achieve better use results in the relevant area it covers. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a digital 4G, 5G micro-power repeater large-area coverage system, which solves the problem that during the signal enhancement process, there will be interference from external co-frequency signals, which will cause the signal quality to be affected when covering a large area.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A digital 4G, 5G micro-power repeater large-area coverage system, comprising:

[0007] The signal amplification center is a digital repeater base station that amplifies the signal power and changes the signal strength by adjusting the signal frequency;

[0008] The numerical analysis center, based on the relevant signal data generated during the signal amplification process, including signal frequency and signal strength, confirms each non-interfered relevant standard frequency range based on the signal interference situation, including:

[0009] According to the signal strength corresponding to different signal frequencies, a signal strength change curve is generated, wherein the horizontal coordinate parameter of the change curve is the signal frequency, and the vertical coordinate parameter is the signal strength;

[0010] Determine the different trend segments appearing in the signal strength change curve, mark the relevant segments with a downward trend as interference segments, and record the frequency values ​​of the front and rear endpoints of the corresponding interference segment to determine the frequency range of the interference segment;

[0011] According to the preset relevant signal frequency interval, the overlapped part of the interference line segment frequency interval is eliminated to determine the relevant standard frequency range, and the determined groups of relevant standard frequency ranges are transmitted to the storage end for storage;

[0012] The value confirmation end determines the required frequency of the signal based on the coverage area of ​​the corresponding signal;

[0013] The control center determines whether there is a relative value of the signal demand frequency from a plurality of sets of related standard frequency ranges stored in the storage end based on the determined signal demand frequency, and executes different signal frequency adjustment methods based on the determination result, including:

[0014] The confirmed signal requirement frequency is marked as XQ, and whether XQ meets the following standard frequency range:

[0015] If it is satisfied, the relevant standard frequency range is marked as the execution frequency range, and the generation frequency of the signal is controlled to change within the execution frequency range;

[0016] If not, two sets of related standard frequency ranges with similar XQ are marked as pending ranges, and the pending ranges are transmitted to the control end for signal control to determine the final use range;

[0017] The control end, based on the pending range determined by the control center, adjusts the frequency of such pending range up or down, and determines the use range based on the relevant changes in its signal strength, including:

[0018] The pending range below the signal requirement frequency XQ is calibrated as a low pending range, and the pending range above the signal requirement frequency XQ is calibrated as a high pending range;

[0019] Start from the initial frequency value in the low undetermined range, gradually increase it, stop at XQ, determine its signal strength climbing curve, determine the relevant line segment with a downward trend from the signal strength climbing curve, and determine the line length of the relevant line segment in the entire signal strength climbing curve. The proportion of the line length ZB1, where ZB1 = the length of the relevant line segment ÷ the length of the signal strength climbing curve;

[0020] Starting from the end frequency value of the high undetermined range, it is gradually reduced to XQ, and its signal strength reduction curve is determined. The relevant line segment with an upward trend is determined from the signal strength climbing curve, and the line length of the relevant line segment is determined to be the proportion of the line length of the entire signal strength reduction curve ZB2, where ZB2 = the length of the relevant line segment ÷ the length of the signal strength reduction curve;

[0021] Determine the minimum value from ZB1 and ZB2. If ZB1 is the minimum value, the numerical range between the maximum value of the lower undetermined range and XQ is calibrated as the use range. If ZB2 is the minimum value, the numerical range between the minimum value of the upper undetermined range and XQ is calibrated as the use range.

[0022] Determine the center, determine the relevant signal strength change curve within the determined usage range, and then lock the optimal usage range based on the signal stability of the signal strength change curve. The specific method is as follows:

[0023] From the signal strength change curve, determine whether there are relevant line segments with inconsistent trend:

[0024] If there are related line segments with inconsistent trends, determine the trend values ​​of the related line segments with different trends: determine the coordinates of the two endpoints of the corresponding related line segment, mark them as (X1, Y1) and (X2, Y2) respectively, use K = (Y2-Y1) ÷ (X2-X1) to determine the trend K of the corresponding related line segment, then perform absolute value processing on the trend K of different related line segments, select the minimum value from the processed absolute values, mark the related line segment corresponding to the minimum value as the standard line segment, and the frequency value corresponding to the standard line segment is the best use range;

[0025] If there are no related line segments with inconsistent trends, this usage range will be directly marked as the optimal usage range.

[0026] Preferably, the storage end stores several groups of related standard frequency ranges obtained through processing, and provides them for retrieval by the control center.

[0027] Preferably, the required frequency determined by the numerical confirmation terminal is confirmed by an operator.

[0028] The present invention provides a digital 4G and 5G micro-power repeater large-area coverage system. Compared with the prior art, it has the following beneficial effects:

[0029] The present invention identifies the relevant frequencies that are interfered with by the changes in the signal frequency and the corresponding signal strength, optimizes the use frequency of the signal, and ensures that the subsequent selected frequency does not have the frequency of the same frequency interference, thereby not only ensuring that the signal covers a large area, but also fully ensuring its signal quality, and achieving better use effect;

[0030] For demand signals for which no relevant frequencies exist, the corresponding frequency range is determined from the closest corresponding relevant frequencies, and then the optimal usage range is locked within the determined frequency range. This optimal usage range is subsequently used for signal processing. In this way, the corresponding signal strength and signal quality can be fully guaranteed, thereby achieving better large-area coverage effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the principle framework of the present invention;

[0032] Figure 2 It is a schematic diagram of the signal intensity variation curve related to the present invention. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiment 1

[0035] See also Figure 1 , the present application provides a digital 4G, 5G micro-power repeater large-area coverage system, including a signal amplification center, a numerical analysis center, a storage end, a numerical confirmation end, a control center, a regulation end, and a determination center;

[0036] The signal amplification center is electrically connected to the input node of the numerical analysis center, and the numerical analysis center is electrically connected to the input node of the storage end, and the storage end is electrically connected to the input node of the control center, wherein the numerical confirmation end is electrically connected to the input node of the control center, and the control end is bidirectionally connected to the control center, wherein the control center is electrically connected to the input node of the determination center;

[0037] Among them, the signal amplification center is a digital repeater amplification base station, which amplifies the signal power and changes the signal strength by adjusting the signal frequency. When the signal strength changes, the coverage of the corresponding signal will change. The basic models of this amplification base station include: 106mm high, 270mm long, 63mm wide, and weighs 2kg. The frequency range is 0.7G-2.6G;

[0038] The numerical analysis center, based on the relevant signal data generated during the signal amplification process, including the signal frequency and signal strength, confirms each non-interfered frequency range based on the interference of the signal, and transmits the confirmed relevant standard frequency range to the storage end for storage, wherein the specific method of confirmation is:

[0039] According to the signal strength corresponding to different signal frequencies, a signal strength change curve is generated, wherein the horizontal coordinate parameter of the change curve is the signal frequency, and the vertical coordinate parameter is the signal strength;

[0040] The different trend segments appearing in the signal strength change curve are determined, and the relevant segments with a downward trend are marked as interference segments, and the frequency values ​​of the front and rear endpoints of the corresponding interference segments are recorded to determine the frequency range of the interference segments. Specifically, the segments with a downward trend are the relevant segments with a negative trend. Since the signal frequency is gradually increasing, the signal strength is also in a state of continuous increase with its change. Therefore, there are some segments with a downward trend, which represent relevant segments with signal interference. Such frequencies are interfered by other signal frequencies, resulting in changes in the direction of the segments.

[0041] According to the preset relevant signal frequency interval, the overlapped part of the interference line segment frequency interval is eliminated to determine the relevant standard frequency range, and the determined groups of relevant standard frequency ranges are transmitted to the storage end for storage;

[0042] For example, the originally preset relevant signal frequency intervals are 0.7G-0.8G, 0.8G-0.9G, 0.9G-1.0G and other relevant signal frequency intervals, among which the confirmed interference line segment frequency interval is 0.75-0.85G. Then after elimination, the generated relevant standard frequency intervals are 0.7-0.75G and 0.85-0.9G. The corresponding frequencies with interference are eliminated to determine the relevant standard frequency intervals, so as to ensure that the corresponding signals generated in such frequency intervals will not be interfered by external signals;

[0043] This type of processing method can ensure that the subsequently selected frequency does not have any co-frequency interference, thereby not only ensuring that the signal covers a large area, but also fully guaranteeing its signal quality, and achieving better use results.

[0044] The storage end stores several groups of related standard frequency ranges obtained through processing and provides them for retrieval by the control center.

[0045] Embodiment 2

[0046] In the specific implementation process of this embodiment, compared with the above embodiment, this embodiment mainly focuses on the selection of signal frequency to determine the signal frequency required for the corresponding coverage area;

[0047] The value confirmation terminal determines the required frequency of the signal based on the coverage area of ​​the corresponding signal. The determined required frequency is confirmed by the operator and transmitted to the control center.

[0048] The control center determines whether a relative value of the signal demand frequency exists in a plurality of groups of related standard frequency ranges stored in the storage end based on the determined signal demand frequency, and executes different signal frequency adjustment methods based on the determination result, wherein the specific execution methods include:

[0049] The confirmed signal requirement frequency is marked as XQ, and whether XQ meets the following standard frequency range:

[0050] If it is satisfied, the relevant standard frequency range is calibrated as the execution frequency range, and the occurrence frequency of the signal is controlled to change within the execution frequency range to achieve the effect of signal covering a large area;

[0051] If it is not satisfied, the two sets of related standard frequency ranges with similar XQ are marked as pending ranges, and the pending ranges are transmitted to the control end for signal control to determine the final use range. Assuming that the required XQ value is 0.95G, the originally determined related frequency ranges are 0.8G-0.9G and 0.9G-1.0G, where 0.95G∈0.9G-1.0G, then 0.9G-1.0G is directly used as the execution frequency range, and the related frequencies within this execution frequency range are directly used for execution later;

[0052] If the relevant frequency ranges are 0.8-0.9G and 0.98-1.0G respectively, and when XQ takes the value of 0.95G, no suitable relevant frequency can be found, then the two sets of relevant frequency ranges closest to 0.95G, 0.8-0.9G and 0.98-1.0G, belong to the corresponding pending ranges. The subsequent control end will perform relevant adjustments based on this pending range to determine the final range of use with better use effects.

[0053] The control end, based on the pending range determined by the control center, adjusts the frequency of such pending range up or down, and determines the use range based on the relevant changes in its signal strength. The specific method of determining the use range includes:

[0054] The pending range below the signal requirement frequency XQ is calibrated as a low pending range, and the pending range above the signal requirement frequency XQ is calibrated as a high pending range;

[0055] Start from the initial frequency value in the low undetermined range, gradually increase it, stop at XQ, determine its signal strength climbing curve, determine the relevant line segment with a downward trend from the signal strength climbing curve, and determine the line length of the relevant line segment in the entire signal strength climbing curve. The proportion of the line length ZB1, where ZB1 = the length of the relevant line segment ÷ the length of the signal strength climbing curve;

[0056] Starting from the end frequency value of the high undetermined range, it is gradually reduced to XQ, and its signal strength reduction curve is determined. The relevant line segment with an upward trend is determined from the signal strength climbing curve, and the line length of the relevant line segment is determined to be the proportion of the line length of the entire signal strength reduction curve ZB2, where ZB2 = the length of the relevant line segment ÷ the length of the signal strength reduction curve;

[0057] Determine the minimum value from ZB1 and ZB2. If ZB1 is the minimum value, calibrate the numerical range from the maximum value of the low pending range to XQ as the use range. If ZB2 is the minimum value, calibrate the numerical range from the minimum value of the high pending range to XQ as the use range. For example, if the frequency ranges to be determined are 0.8-0.9G and 0.98-1.0G, and XQ is 0.95G, the use range determined from the low pending range is 0.9G-0.95G, and the use range determined from the high pending range is 0.95G-0.98G.

[0058] The relevant processing method made here is to determine which frequency changes when the signal interference is the lowest. Because the signal frequency with interference is generally a fixed value or a fixed range, the specific impact can be determined based on the determined frequency range changing from small to large or from large to small, so as to lock the optimal frequency range and determine the scope of use.

[0059] Embodiment 3

[0060] In the specific use process of this embodiment, the relevant range in which the signal change is most stable is determined from the determined use range, which is a further embodiment of the second embodiment;

[0061] The specific execution end is to determine the center, wherein the center is determined, and its related signal strength change curve is determined from the determined use range, and then the best use range is locked based on the signal stability of the signal strength change curve, and then the related signal is generated based on the best use range to cover a large area, wherein the specific method of locking the best use range is:

[0062] From the signal strength change curve, determine whether there are relevant line segments with inconsistent trends. If not (that is, the entire change curve is a linear change process, and its corresponding trends are consistent, which can be understood as a standard first-order equation, and its values ​​are all changing regularly), this use range is directly calibrated as the optimal use range;

[0063] If there are related line segments with inconsistent trends, determine the trend values ​​of the related line segments with different trends: determine the coordinates of the two endpoints of the corresponding related line segment, mark them as (X1, Y1) and (X2, Y2) respectively, use K = (Y2-Y1) ÷ (X2-X1) to determine the trend K of the corresponding related line segment, then perform absolute value processing on the trend K of different related line segments, select the minimum value from the processed absolute values, mark the related line segment corresponding to the minimum value as the standard line segment, and the frequency value corresponding to the standard line segment is the best use range;

[0064] Specifically, Figure 2As shown, there are four groups of line segments with different trends, which are marked as K1, K2, K3 and K4, and the endpoint values ​​of each group of related line segments are different. It can be seen from the content of the figure that the trend of the related line segments corresponding to K2 and K4 is relatively stable, so the optimal use range determined subsequently is roughly determined in the related line segments corresponding to K2 and K4;

[0065] For the related line segments with completely consistent trend, if there is only the corresponding related line segment of K1, the corresponding frequency interval is determined based on the frequency value of the related line segment corresponding to K1, and this frequency interval is used as the corresponding optimal usage range.

[0066] Embodiment 4

[0067] The specific implementation process of this embodiment includes all the implementation processes of the above three groups of embodiments.

[0068] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0069] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A digital 4G, 5G micro-power repeater large-area coverage system, characterized in that: include: The signal amplification center is a digital repeater base station that amplifies the signal power and changes the signal strength by adjusting the signal frequency; The numerical analysis center, based on the relevant signal data generated during the signal amplification process, including the signal frequency and signal strength, confirms each relevant standard frequency range that is not interfered with based on the interference of the signal; The value confirmation end determines the required frequency of the signal based on the coverage area of ​​the corresponding signal; The control center, based on the determined signal demand frequency, determines whether the signal demand frequency belongs to the relevant standard frequency range from a plurality of groups of relevant standard frequency ranges stored in the storage end, and executes different signal frequency adjustment methods based on the determination result, and the specific methods include: The confirmed signal requirement frequency is marked as XQ, and whether XQ meets the following standard frequency range: If it is satisfied, the relevant standard frequency range is marked as the execution frequency range, and the generation frequency of the signal is controlled to change within the execution frequency range; If not, two sets of related standard frequency ranges with similar XQ are marked as pending ranges, and the pending ranges are transmitted to the control end for signal control to determine the final use range; The control end, based on the pending range determined by the control center, adjusts the frequency of such pending range up or down, and determines the use range based on the relevant changes in its signal strength, including: The pending range below the signal requirement frequency XQ is calibrated as a low pending range, and the pending range above the signal requirement frequency XQ is calibrated as a high pending range; Start from the initial frequency value in the low undetermined range, gradually increase it, stop at XQ, determine its signal strength climbing curve, determine the relevant line segment with a downward trend from the signal strength climbing curve, and determine the line length of the relevant line segment in the entire signal strength climbing curve. The proportion of the line length ZB1, where ZB1 = the length of the relevant line segment ÷ the length of the signal strength climbing curve; Starting from the end frequency value of the high undetermined range, it is gradually reduced to XQ, and its signal strength reduction curve is determined. The relevant line segment with an upward trend is determined from the signal strength climbing curve, and the line length of the relevant line segment is determined to be the proportion of the line length of the entire signal strength reduction curve ZB2, where ZB2 = the length of the relevant line segment ÷ the length of the signal strength reduction curve; Determine the minimum value from ZB1 and ZB2. If ZB1 is the minimum value, calibrate the numerical range from the maximum value of the lower undetermined range to XQ as the use range; When ZB2 is the minimum value, the numerical range between the minimum value of the high undetermined range and XQ is calibrated as the use range; Determine the center, determine the relevant signal strength change curve within the determined usage range, and then lock the optimal usage range based on the signal stability of the signal strength change curve. The specific method is as follows: From the signal strength change curve, determine whether there are relevant line segments with inconsistent trend: If there are related line segments with inconsistent trends, determine the trend values ​​of the related line segments with different trends: determine the coordinates of the two endpoints of the corresponding related line segments, calibrate them as (X1, Y1) and (X2, Y2) respectively, and use K = (Y2-Y1) ÷ (X2-X1) to determine the trend K of the corresponding related line segment, and then perform absolute value processing on the trend K of different related line segments, select the minimum value from the processed absolute values, and calibrate the related line segment corresponding to the minimum value as the standard line segment. The frequency value corresponding to the standard line segment is the optimal usage range. If there are no related line segments with inconsistent trends, this usage range is directly calibrated as the optimal usage range.

2. According to claim 1, a digital 4G, 5G micro-power repeater large-area coverage system is characterized in that: The specific method for the numerical analysis center to confirm the relevant standard frequency range includes: According to the signal strength corresponding to different signal frequencies, a signal strength change curve is generated, wherein the horizontal coordinate parameter of the change curve is the signal frequency, and the vertical coordinate parameter is the signal strength; Determine the different trend segments appearing in the signal strength change curve, mark the relevant segments with a downward trend as interference segments, and record the frequency values ​​of the front and rear endpoints of the corresponding interference segment to determine the frequency range of the interference segment; According to the preset relevant signal frequency interval, the overlapped part of the interference line segment frequency interval is eliminated to determine the relevant standard frequency range, and the determined groups of relevant standard frequency ranges are transmitted to the storage end for storage.

3. A digital 4G, 5G micro-power repeater large-area coverage system according to claim 2, characterized in that: The storage end stores several groups of related standard frequency ranges obtained through processing, and provides them for retrieval by the control center.

4. A digital 4G, 5G micro-power repeater large-area coverage system according to claim 1, characterized in that: The required frequency determined by the numerical value confirmation terminal is confirmed by the operator.

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