Energy saving method for a repeater

Abstract

The application relates to the field of communication energy saving, in particular to a repeater energy saving method, which comprises the following steps: obtaining a total received power according to the sum of the powers of multiple signals received by a repeater; judging whether the total received power is less than a preset first intensity threshold; if the total received power is less than the preset first intensity threshold, the repeater amplifies signals with a first gain; if the total received power is greater than or equal to the first intensity threshold, the repeater sends a test signal to a base station; obtaining an intensity average of the test signal; judging whether the total received power intensity average is greater than a test intensity threshold; if the total received power intensity average is greater than the test intensity threshold, the repeater amplifies signals with a second gain; if the total received power intensity average is less than or equal to the test intensity threshold, the repeater amplifies signals with the first gain; and the total received power first gain is greater than the second gain. The application has the effect of reducing the call drop rate.

Description

Technical Field

[0001] This application relates to the field of energy saving in communications, and in particular to an energy-saving method for repeaters. Background Technology

[0002] In today's era of rapid development in communication technology, repeaters, as an important communication device, play a crucial role in expanding signal coverage and enhancing signal strength.

[0003] Existing energy-saving methods for repeaters typically rely on specific numerical values ​​for judgment and operation. Taking received signal as an example, a common approach is to compare the total received power with a strength threshold. If the total received power is less than the strength threshold, the repeater operates at the first gain; conversely, when the total received power is greater than the strength threshold, the repeater operates at the second gain, with the first gain being greater than the second gain. The purpose of this is to ensure that the base station can receive a signal when the received signal is weak, and to reduce the signal strength received by the base station when the received signal is strong, thereby attempting to reduce noise floor and save energy. In addition, some methods consider values ​​such as noise floor to implement similar energy-saving judgment mechanisms.

[0004] However, existing energy-saving methods for repeaters have significant drawbacks. Because the coverage area of ​​a repeater and the interference situation between the repeater and the base station vary, when the total received power exceeds the strength threshold, and the repeater operates at a second gain after reducing its gain, excessive interference between the repeater and the base station may cause signal loss when the repeater sends signals to the base station at the second gain, thus increasing the call drop rate. Summary of the Invention

[0005] To reduce call drop rate, this application provides an energy-saving method for repeaters.

[0006] This application provides an energy-saving method for repeaters, which adopts the following technical solution:

[0007] A repeater energy-saving method includes the following steps: obtaining the total received power based on the sum of the power of multiple signals received by the repeater; determining whether the total received power is less than a preset first strength threshold; if the total received power is less than the preset first strength threshold, the repeater amplifies the signal with a first gain; if the total received power is greater than or equal to the first strength threshold, the repeater sends a test signal to a base station; obtaining the average strength of the test signal, wherein the average strength is the average signal strength of the test signal received by the base station; determining whether the average strength is greater than a test strength threshold; if the average strength is greater than the test strength threshold, the repeater amplifies the signal with a second gain; if the average strength is less than or equal to the test strength threshold, the repeater amplifies the signal with a first gain; wherein the first gain is greater than the second gain.

[0008] By adopting the above technical solution, the total received power can be obtained by summing the power of multiple signals, which can more accurately measure the signal reception of the repeater; by comparing the total received power with the first strength threshold, the signal strength can be preliminarily judged to determine whether to send a test signal; by sending a test signal to the base station and obtaining the average strength value, the interference between the repeater and the base station can be judged; when the average strength value is greater than the test strength threshold, the signal is amplified with the second gain to save energy, and when the average strength value is less than or equal to the test strength threshold, the signal is amplified with the first gain to reduce the call drop rate.

[0009] Optionally, after determining that the total received power is greater than or equal to the first strength threshold and before the repeater sends a test signal to the base station, the following steps are further included: determining whether the total received power is less than the second strength threshold, wherein the second strength threshold is greater than the first strength threshold; if the total received power is less than the second strength threshold, the repeater maintains its original gain; if the total received power is greater than or equal to the second strength threshold, the repeater sends a test signal to the base station.

[0010] By adopting the above technical solution and setting a second strength threshold, when the total received power is between the first and second strength thresholds, the repeater maintains its original gain, reducing the occurrence of repeated adjustments to the repeater gain.

[0011] Optionally, after the repeater amplifies the signal with a first gain, the method further includes the following steps: obtaining a first call drop rate; determining whether the first call drop rate is greater than a first call drop threshold; if the first call drop rate is greater than the first call drop threshold, increasing the first gain by a preset adjustment value; if the first call drop rate is less than or equal to the first call drop threshold, further determining whether the first call drop rate is greater than a second call drop threshold, wherein the first call drop threshold is greater than the second call drop threshold; if the first call drop rate is greater than the second call drop threshold, maintaining the first gain; if the first call drop rate is less than or equal to the second call drop threshold, decreasing the first gain by the adjustment value.

[0012] By adopting the above technical solution, the first call drop rate is obtained after amplifying the signal with the first gain. The first gain is adjusted by increasing, maintaining or decreasing based on the comparison results between the first call drop rate and the first call drop threshold and the second call drop threshold. The first gain can be dynamically optimized, which can reduce the call drop rate while ensuring communication quality and playing an energy-saving role.

[0013] Optionally, after the repeater amplifies the signal with the second gain, the method further includes the following steps: obtaining a second call drop rate; determining whether the second call drop rate is greater than a first call drop threshold; if the second call drop rate is greater than the first call drop threshold, increasing the second gain by a preset adjustment value; if the second call drop rate is less than or equal to the first call drop threshold, further determining whether the second call drop rate is greater than the second call drop threshold, wherein the first call drop threshold is greater than the second call drop threshold; if the second call drop rate is greater than the second call drop threshold, maintaining the second gain; if the second call drop rate is less than or equal to the second call drop threshold, decreasing the second gain by the adjustment value.

[0014] By adopting the above technical solution, the second call drop rate is obtained and compared with the first and second call drop thresholds. The second gain can be dynamically adjusted so that the repeater can save energy while reducing the occurrence of excessively high call drop rates due to unreasonable gain, and maintaining good communication performance.

[0015] Optionally, both the first gain and the second gain are preset with a maximum value and a minimum value, and when adjusted with the adjustment value, both the first gain and the second gain remain between the maximum value and the minimum value.

[0016] By adopting the above technical solution, the first and second gains can be prevented from exceeding the reasonable range when adjusted by the adjustment value, making the gain control of the repeater more stable and reliable, ensuring the normal operation of the repeater and optimizing the energy-saving effect.

[0017] Optionally, before obtaining the first call drop rate, the duration is obtained, which is the time the repeater operates at the current gain; it is determined whether the duration is greater than a time threshold; if yes, the first call drop rate is obtained; if no, the process of obtaining the total received power is returned.

[0018] By adopting the above technical solution, before obtaining the first call drop rate, it is determined whether the duration of the repeater operating at the current gain is greater than the time threshold. If it is greater, the first call drop rate is obtained; if it is less, the system returns to obtain the total received power. This reduces the occurrence of inaccurate data due to obtaining the first call drop rate too early, and makes the first gain adjustment more reasonable.

[0019] Optionally, after determining that the total received power is greater than or equal to the first strength threshold and before the repeater sends a test signal to the base station, the method further includes the following steps: obtaining the number of users, where the number of users is the number of users sending signals to the repeater; obtaining a near-far threshold based on the product of the number of users and a preset benchmark value; determining whether the total received power is greater than the near-far threshold; if the total received power is greater than the near-far threshold, then the repeater sends a test signal to the base station; if the total received power is less than or equal to the near-far threshold, then the repeater maintains its original gain.

[0020] By adopting the above technical solution, the near and far thresholds are obtained by multiplying the number of users by the preset benchmark value, and then compared with the total received power. When the total received power is greater than the near and far thresholds, a test signal is sent. When the total received power is less than or equal to the near and far thresholds, the original gain is maintained. This can reduce the increase in call drop rate for users at the edge of the repeater's coverage area.

[0021] Optionally, after obtaining the number of users, it is also determined whether the number of users is greater than a preset quantity threshold; if the number of users is greater than the preset quantity threshold, an adjustment coefficient is obtained, and the adjustment coefficient is a preset first coefficient; if the number of users is less than or equal to the preset quantity threshold, an adjustment coefficient is obtained, and the adjustment coefficient is a preset second coefficient, where the first coefficient is less than the second coefficient. When obtaining the near and far thresholds based on the product of the number of users and a preset benchmark value, the adjustment coefficient is also multiplied.

[0022] By adopting the above technical solution, different adjustment coefficients can be selected based on the comparison results between the number of users and the preset threshold. This allows for a more accurate determination of the near and far thresholds based on the number of users, making the gain adjustment of the repeater more consistent with the actual user distribution and signal conditions, and further balancing energy saving and signal transmission quality.

[0023] Optionally, the method may also include the following steps: collecting the gain changes of the repeater over multiple days; obtaining the energy-saving period based on the gain changes, wherein the energy-saving period is the time during which the repeater operates at the second gain; and when the repeater is in the energy-saving period, the repeater operates at the second gain.

[0024] By adopting the above technical solution, the gain changes of repeaters over multiple days can be collected to understand the pattern of repeater gain changes over time. Based on this pattern, the energy-saving period when the repeater operates at the second gain can be determined. During the energy-saving period, the repeater can operate at the second gain, which can effectively reduce energy consumption and achieve the goal of energy saving.

[0025] Optionally, when the repeater is in an energy-saving period, after the repeater operates at the second gain, it obtains the third call drop rate and determines whether the third call drop rate is greater than the third call drop threshold; if so, it returns to obtain the total received power; if the third call drop rate is less than or equal to the third call drop threshold, the repeater continues to operate at the second gain.

[0026] By adopting the above technical solution, after the repeater is in the energy-saving period and operates at the second gain, the third call drop rate is obtained and compared with the third call drop threshold. When the third call drop rate is greater than the third call drop threshold, the total received power is returned, and the repeater's operating status can be adjusted in time to reduce the call drop rate. When the third call drop rate is less than or equal to the third call drop threshold, the repeater continues to operate at the second gain, and the energy-saving effect can continue to be maintained.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] When the total received power is greater than or equal to the first strength threshold, the repeater sends a test signal to the base station and obtains the average strength of the test signal. This average strength reflects the average strength of the test signal received by the base station, which can effectively determine the interference between the repeater and the base station. When the average strength is greater than the test strength threshold, it indicates that the interference between the repeater and the base station is small. At this time, the repeater is allowed to operate at the second gain to reduce unnecessary power consumption and achieve energy saving.

[0029] When the average intensity is less than or equal to the test intensity threshold, it indicates that there is a large interference between the repeater and the base station. At this time, the repeater is not allowed to operate at the second gain, but at the first gain to ensure the signal transmission quality and thus effectively reduce the call drop rate. Attached Figure Description

[0030] Figure 1 This is a flowchart of steps S1-S9 of Embodiment 1 of this application;

[0031] Figure 2 This is a flowchart of steps S10-S17 of Embodiment 1 of this application;

[0032] Figure 3 This is a flowchart of steps S18-S25 of Embodiment 1 of this application;

[0033] Figure 4 This is a flowchart of steps S26-S31 of Embodiment 2 of this application;

[0034] Figure 5 This is a flowchart of steps S32-S37 of Embodiment 2 of this application. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail. Example 1

[0036] This application discloses an energy-saving method for repeaters.

[0037] Reference Figure 1 An energy-saving method for repeaters includes the following steps:

[0038] Step S1: Obtain the total received power by summing the power of the multiple signals received by the repeater. Then proceed to step S2.

[0039] The signal received by the repeater is the signal sent by the user to the repeater. The total received power is calculated by summing the power of each signal within a preset time window.

[0040] A typical network management system monitors various metrics of a repeater, including total received power, which can be obtained directly from the network management system. Alternatively, if the network management system is collecting the total received power, a power detection device, such as a power sensor, can be used. This sensor can detect the power of each signal in real time and then sum the power of multiple signals to obtain the total received power.

[0041] Step S2: Determine whether the total received power is less than the preset first intensity threshold; if yes, proceed to step S3; if no, proceed to step S4.

[0042] The first strength threshold is a preset value used to distinguish the strength of the signal received by the repeater. When the total received power is less than the first strength threshold, the signal strength received by the repeater is weak. When the total received power is greater than or equal to the first strength threshold, the signal strength received by the repeater is strong.

[0043] Step S3: The repeater amplifies the signal with the first gain. Then, step S10 is executed.

[0044] The first gain is a preset value. It is determined when, under conditions of strong interference, a user at the edge of the repeater's coverage area sends a signal to the repeater, and the repeater forwards the signal to the base station at the first gain, ensuring the base station can receive the signal with excellent quality. Alternatively, the first gain can be directly estimated based on the interference situation in the repeater's coverage area.

[0045] When the total received power is less than the first strength threshold, the repeater amplifies the signal with the first gain, thereby ensuring that the signal sent by the repeater to the base station is not easily lost, thus reducing the call drop rate.

[0046] Step S4: Determine whether the total received power is less than the second intensity threshold; if yes, proceed to step S5; if no, proceed to step S6.

[0047] The second intensity threshold is greater than the first intensity threshold, typically by 2-5 dBm. By introducing the second intensity threshold, a hysteresis interval is formed between the first and second intensity thresholds.

[0048] Step S5: The repeater maintains its original gain. Then return to step S1.

[0049] When the total received power is between the first and second strength thresholds, the repeater maintains its original gain without adjustment, thereby reducing the situation where the repeater repeatedly adjusts its gain when the total received power fluctuates around the first or second strength threshold.

[0050] Step S6: The repeater sends a test signal to the base station. Then, proceed to step S7.

[0051] When the total received power is greater than or equal to the second strength threshold, the signal is strong, allowing the repeater to reduce its gain in order to save energy.

[0052] Step S7: Obtain the average intensity of the test signal. Then proceed to step S8.

[0053] The mean strength is the average signal strength received by the base station from the test signal.

[0054] Step S8: Determine whether the average intensity is greater than the test intensity threshold; if yes, proceed to step S9; if no, proceed to step S3.

[0055] The test strength threshold is a preset value. The repeater sends test signals to the base station under different interference environments to obtain the strength of the received test signals at different interference levels, and then extracts the value from this to obtain the test strength threshold. Alternatively, the test strength threshold can be directly estimated based on the interference between the base station and the repeater.

[0056] Step S9: The repeater amplifies the signal with the second gain. Then, step S18 is executed.

[0057] The second gain is a preset value. Considering strong interference with the repeater, when users at the edge of the repeater's coverage area send signals to the repeater, and the repeater forwards the signals to the base station with the second gain, the base station can receive the signals, and the signal quality is excellent. Alternatively, the second gain can be directly estimated based on the interference situation in the repeater's coverage area.

[0058] Reference Figure 2 Step S10: Obtain the first duration. Then proceed to step S11.

[0059] The first duration is the time the repeater operates at its current gain.

[0060] Step S11: Determine whether the first duration is greater than the first time threshold; if yes, proceed to step S12; if no, proceed to step S1.

[0061] Step S12: Obtain the first call drop rate. Then proceed to step S13.

[0062] When the first duration is less than or equal to the first time threshold, the first call drop rate may not have had time to change, resulting in low accuracy when directly obtaining the first call drop rate. Obtaining the first call drop rate when the first duration is greater than the first time threshold improves the accuracy of obtaining the first call drop rate.

[0063] Step S13: Determine whether the first dropped call rate is greater than the first dropped call threshold; if yes, proceed to step S14; if no, proceed to step S15.

[0064] Generally, a communication system requires that the call drop rate does not exceed a certain value for the communication system to be qualified. The first call drop threshold is set according to the call drop rate at which the communication system is qualified.

[0065] Step S14: Increase the first gain by a preset adjustment value. Then return to step S1.

[0066] When the first call drop rate is greater than the first call drop threshold, the communication quality is poor. Therefore, increase the first gain by the adjustment value to reduce the call drop rate.

[0067] Step S15: Determine whether the first call drop rate is greater than the second call drop threshold; if so, execute step S16; if not, execute step S17.

[0068] The first call drop rate is greater than the second call drop threshold. The second call drop threshold is generally 70% - 80% of the first call drop threshold.

[0069] Step S16: Maintain the first gain. Then return to step S1.

[0070] When the first call drop rate is between the first call drop threshold and the second call drop threshold, no adjustment is required for the first gain.

[0071] Step S17: Decrease the first gain by the adjustment value. Then return to step S1.

[0072] When the first call drop rate is less than or equal to the second call drop threshold, the first gain can be decreased, so as to sacrifice part of the call drop rate in exchange for an improvement in the energy-saving effect of the repeater.

[0073] Refer to Figure 3 , step S18: Obtain the second duration. Then execute step S19.

[0074] The second duration is the time that the repeater operates with the current gain.

[0075] Step S19: Determine whether the second duration is greater than the second time threshold; if so, execute step S20; if not, execute step S1.

[0076] Step S20: Obtain the second call drop rate. Then execute step S21.

[0077] When the first duration is less than or equal to the second time threshold, the second call drop rate may not have had time to change, and directly obtaining the second call drop rate has low accuracy. When the second duration is greater than the second time threshold, obtain the second call drop rate, thereby improving the accuracy of obtaining the second call drop rate.

[0078] Step S21: Determine whether the second call drop rate is greater than the first call drop threshold; if so, execute step S22; if not, execute step S23.

[0079] Step S22: Increase the second gain by a preset adjustment value. Then return to step S1.

[0080] Step S23: Determine whether the second call drop rate is greater than the second call drop threshold; if yes, proceed to step S24; if no, proceed to step S25.

[0081] Step S24: Maintain the second gain. Then return to step S1.

[0082] Step S25: Reduce the second gain by adjusting the value. Then return to step S1.

[0083] Both the first gain and the second gain are preset with maximum and minimum values. When the adjustment value is adjusted, both the first gain and the second gain remain between the maximum and minimum values.

[0084] The implementation principle of the energy-saving method for repeaters in this embodiment is as follows: This embodiment determines the interference between the repeater and the base station by measuring the average strength of the test signal received by the base station. When the interference is low, a second gain amplification signal is used to reduce unnecessary power consumption and achieve energy saving; when the interference is high, a first gain amplification signal is used to reduce the probability of signal loss and ensure communication stability. Example 2

[0085] This application discloses an energy-saving method for repeaters.

[0086] Reference Figure 4 The difference between the energy-saving method for repeaters in this application embodiment and Embodiment 1 is that, after determining in step S4 that the total received power is greater than or equal to the second intensity threshold, and before executing step S6, the following steps are also included:

[0087] Step S26: Obtain the number of users. Then proceed to step S27.

[0088] For each signal corresponding to the total received power, the number of people at each signal is summed to form the number of users. The number of users is the number of users sending signals to the repeater.

[0089] Step S27: Determine whether the number of users is greater than the preset threshold; if yes, proceed to step S28; if no, proceed to step S29.

[0090] When there are many users, interference usually worsens; when there are few users, interference usually decreases.

[0091] Step S28: Obtain the adjustment coefficient, which is the preset first coefficient. Then proceed to step S30.

[0092] Step S29: Obtain the adjustment coefficient, which is the preset second coefficient. Then proceed to step S30.

[0093] The first coefficient is less than the second coefficient.

[0094] Step S30: Obtain the near and far thresholds based on the product of the adjustment coefficient, the number of users, and the preset baseline value. Then, proceed to step S31.

[0095] When interference is strong, the signal strength received by the repeater will decrease. A first coefficient is used as an adjustment factor to ensure that the near and far thresholds match the environment under strong interference. When interference is weak, the signal strength received by the repeater will increase. A second coefficient is used as an adjustment factor to ensure that the near and far thresholds match the environment under weak interference.

[0096] Step S31: Determine whether the total received power is greater than the near and far threshold; if yes, proceed to step S6; if no, proceed to step S5.

[0097] Step S6 involves the repeater sending a test signal to the base station; step S5 involves the repeater maintaining its original gain. When the total received power is greater than the near-far threshold, the number of edge users in the repeater's coverage area is small, thus allowing the repeater to send signals at the second gain. When the total received power is less than or equal to the near-far threshold, the number of edge users in the repeater's coverage area is large, thus preventing the repeater from sending signals at the second gain, thereby ensuring communication for users at the edge of the repeater's coverage area.

[0098] Reference Figure 5 The number of days is set according to the accuracy requirements of the collected data. After the repeater station has been running for the required number of days, the following steps are also included:

[0099] Step S32: Collect the gain changes of the repeater over multiple days. Then proceed to step S33.

[0100] Step S33: Obtain the energy-saving period based on the gain change. The energy-saving period is the time period during which the repeater operates at the second gain. Then, proceed to step S34.

[0101] By analyzing the collected gain change data using data analysis software, the time periods during which the repeater frequently operates at the second gain are identified as energy-saving periods.

[0102] Step S34: When the repeater is in an energy-saving period, the repeater operates at the second gain. Then proceed to step S35.

[0103] Step S35: Obtain the third call drop rate.

[0104] Step S36: Determine whether the third call drop rate is greater than the third call drop threshold; if yes, return to step S1; if no, proceed to step S37.

[0105] Step S37: The repeater continues to operate at the second gain.

[0106] The implementation principle of the repeater energy-saving method in this application embodiment is as follows: This embodiment obtains the energy-saving period by collecting gain changes over multiple days, which can more rationally arrange the time when the repeater operates at the second gain, thereby improving the energy-saving effect. During the energy-saving period, the third call drop rate is monitored. When the call drop rate is too high, the process returns to acquiring the received power and readjusting the gain to ensure communication stability. When the call drop rate is low, the repeater continues to operate at the second gain, continuously achieving energy saving.

[0107] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for energy saving in repeater stations, characterized in that, Includes the following steps: The total received power is obtained by summing the power of multiple signals received by the repeater; it is then determined whether the total received power is less than a preset first strength threshold. If the total received power is less than a preset first strength threshold, the repeater amplifies the signal with a first gain; if the total received power is greater than or equal to the first strength threshold, the repeater sends a test signal to the base station; the average strength of the test signal is obtained, where the average strength is the average signal strength of the test signal received by the base station; it is determined whether the average strength is greater than a test strength threshold; if the average strength is greater than the test strength threshold, the repeater amplifies the signal with a second gain; if the average strength is less than or equal to the test strength threshold, the repeater amplifies the signal with a first gain; the first gain is greater than the second gain. After determining that the total received power is greater than or equal to the first strength threshold, and before the repeater sends a test signal to the base station, the following steps are also included: determining whether the total received power is less than the second strength threshold, wherein the second strength threshold is greater than the first strength threshold; if the total received power is less than the second strength threshold, the repeater maintains its original gain; if the total received power is greater than or equal to the second strength threshold, the repeater sends a test signal to the base station. After determining that the total received power is greater than or equal to a first strength threshold, and before the repeater sends a test signal to the base station, the following steps are included: obtaining the number of users, where the number of users is the number of users sending signals to the repeater; obtaining a near-far threshold based on the product of the number of users and a preset benchmark value; determining whether the total received power is greater than the near-far threshold; if the total received power is greater than the near-far threshold, then the repeater sends a test signal to the base station; if the total received power is less than or equal to the near-far threshold, then the repeater maintains its original gain. After the repeater amplifies the signal with a first gain, the method further includes the following steps: obtaining a first call drop rate; determining whether the first call drop rate is greater than a first call drop threshold; if the first call drop rate is greater than the first call drop threshold, increasing the first gain by a preset adjustment value; if the first call drop rate is less than or equal to the first call drop threshold, further determining whether the first call drop rate is greater than a second call drop threshold, wherein the first call drop threshold is greater than the second call drop threshold; if the first call drop rate is greater than the second call drop threshold, maintaining the first gain; if the first call drop rate is less than or equal to the second call drop threshold, decreasing the first gain by the adjustment value.

2. The energy-saving method for a repeater according to claim 1, characterized in that: After the repeater amplifies the signal with a second gain, the method further includes the following steps: obtaining a second call drop rate; determining whether the second call drop rate is greater than a first call drop threshold; if the second call drop rate is greater than the first call drop threshold, increasing the second gain by a preset adjustment value; if the second call drop rate is less than or equal to the first call drop threshold, further determining whether the second call drop rate is greater than the second call drop threshold, wherein the first call drop threshold is greater than the second call drop threshold; if the second call drop rate is greater than the second call drop threshold, maintaining the second gain; if the second call drop rate is less than or equal to the second call drop threshold, decreasing the second gain by the adjustment value.

3. The energy-saving method for a repeater according to claim 2, characterized in that: Both the first gain and the second gain have preset maximum and minimum values. When adjusted with the adjustment value, both the first gain and the second gain remain between the maximum and minimum values.

4. The energy-saving method for a repeater according to claim 1, characterized in that: Before obtaining the first call drop rate, obtain the duration, which is the time the repeater operates at the current gain; determine whether the duration is greater than the time threshold; if yes, then obtain the first call drop rate; if no, return to obtain the total received power.

5. The energy-saving method for a repeater according to claim 1, characterized in that: After obtaining the number of users, it is also determined whether the number of users is greater than a preset quantity threshold. If the number of users is greater than the preset quantity threshold, an adjustment coefficient is obtained, and the adjustment coefficient is a preset first coefficient. If the number of users is less than or equal to the preset quantity threshold, an adjustment coefficient is obtained, and the adjustment coefficient is a preset second coefficient. The first coefficient is less than the second coefficient. When obtaining the near and far thresholds based on the product of the number of users and a preset benchmark value, the adjustment coefficient is also multiplied.

6. The energy-saving method for a repeater according to claim 1, characterized in that, It also includes the following steps: Collect the gain changes of the repeater over multiple days; obtain the energy-saving period based on the gain changes, which is the period during which the repeater operates at the second gain; when the repeater is in the energy-saving period, the repeater operates at the second gain.

7. The energy-saving method for a repeater according to claim 6, characterized in that: When the repeater is in an energy-saving period, after the repeater operates at the second gain, it obtains the third call drop rate and determines whether the third call drop rate is greater than the third call drop threshold; if so, it returns to obtain the total received power. If the third call drop rate is less than or equal to the third call drop threshold, the repeater will continue to operate at the second gain.

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