Radio frequency power adjusting method and system

Abstract

The invention provides a radio frequency power adjusting method and system, and the method comprises the steps: obtaining the current temperature of a radio frequency module according to a preset period, and the radio frequency module comprises a radio frequency transceiver; according to a target temperature interval to which the current temperature belongs, determining a power adjustment strategy corresponding to the target temperature interval, the power adjustment strategy being used for increasing or reducing the power of a radio frequency transceiver of the radio frequency module; and adjusting the power of a radio frequency transceiver of the radio frequency module according to the power adjustment strategy.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a radio frequency power regulation method and system. Background Art

[0002] At present, 5G technology (5th Generation Mobile Communication Technology) adds many frequency band combinations and multiple transmission scenarios, including uplink multiple-input multiple-output mode UL MIMO, non-independent networking NSA, enhanced uplink SUL, long-term evolution uplink carrier aggregation LTE ULCA, dual-card dual-pass DSDA, etc. As a result, the design of the RF front-end circuit is more complicated, thereby increasing the power loss of the RF front-end link, causing the power consumption of the RF amplifier and the temperature of the device to rise, increasing the risk of RF device failure. In addition, in the general application environment of RF devices, there will be other devices that dissipate heat during operation, further increasing the risk of RF device failure.

[0003] In the prior art, in order to prevent the RF device from being damaged under high temperature conditions, the RF device is immediately turned off when a high temperature state is detected, thereby causing the wireless communication function to suddenly stop, affecting the customer's use of the medical examination. Summary of the invention

[0004] In view of this, the purpose of the present application is to at least provide a radio frequency power regulation method and system, which collects the current temperature of the radio frequency module in a periodic manner, so as to determine the target temperature range to which the current temperature belongs after each acquisition of the current temperature, and thereby regulates the radio frequency transceiver power of the radio frequency module according to different power regulation strategies corresponding to different target temperature ranges, thereby solving the technical problem in the prior art of directly shutting down the radio frequency device when the temperature is too high, resulting in sudden signal interruption, and achieving the technical effect of reducing the frequency of sudden shutdown of the radio frequency device and improving the user experience.

[0005] This application mainly includes the following aspects:

[0006] In a first aspect, an embodiment of the present application provides a RF power regulation method, the method comprising: obtaining the current temperature of the RF module according to a preset period; determining a power regulation strategy corresponding to the target temperature range based on the target temperature range to which the current temperature belongs, the power regulation strategy being used to increase or decrease the RF transceiver power of the RF module; and regulating the RF transceiver power of the RF module according to the power regulation strategy.

[0007] Optionally, the target temperature interval includes a first temperature interval or a second temperature interval, and the lower limit value of the first temperature interval is greater than the upper limit value of the second temperature interval, wherein determining the power adjustment strategy corresponding to the target temperature interval based on the target temperature interval to which the current temperature belongs includes: when the current temperature belongs to the first temperature interval, determining the power adjustment strategy to reduce the power of the RF transceiver according to a preset power adjustment amount; when the current temperature belongs to the second temperature interval, determining the power adjustment strategy to increase the power of the RF transceiver according to a preset power adjustment amount.

[0008] Optionally, the method also includes: determining whether the current temperature belongs to a preset temperature range; when the current temperature does not belong to the preset temperature range, determining a power adjustment strategy corresponding to the target temperature range based on the target temperature range to which the current temperature belongs; wherein the lower limit value of the preset temperature range is the upper limit value of the second temperature range, and the upper limit value of the preset temperature range is the lower limit value of the first temperature range.

[0009] Optionally, the method also includes: determining a target transceiver power after adjustment based on a current transceiver power of the RF module and the power adjustment strategy; determining whether the target transceiver power belongs to a preset power range of the RF module; and when the target transceiver power belongs to the preset power range of the RF module, adjusting the RF transceiver power of the RF module according to the power adjustment strategy.

[0010] Optionally, when the target transceiver power does not fall within the preset power range of the RF module, the method further includes: determining a target limit of the preset power range corresponding to the power adjustment strategy; and determining a processing strategy for the RF transceiver based on a comparison result between the target transceiver power and the target limit.

[0011] Optionally, the target limit value includes: an upper power limit value of the preset power range corresponding to increasing the power of the RF transceiver, or a lower power limit value of the preset power range corresponding to decreasing the power of the RF transceiver, wherein the processing strategy for the RF transceiver is determined in the following manner: if the target transceiver power is greater than the upper power limit value, the RF transceiver power is controlled to output power according to the upper power limit value; if the target transceiver power is less than the upper power limit value, the RF transceiver is turned off.

[0012] Optionally, the RF module includes an RF transceiver and an RF amplifier, the RF transceiver power is used to indicate the power output by the RF transceiver, and the current temperature of the RF module is obtained in the following manner: collecting the current voltage value of the thermistor to determine the detection temperature corresponding to the current voltage value, the thermistor is placed at a corresponding position of the RF amplifier, and the detection temperature is used to characterize the temperature of the RF amplifier; and the detection temperature is used as the current temperature of the RF module.

[0013] In a second aspect, an embodiment of the present application further provides a radio frequency power regulation system, the system comprising: a radio frequency module; a temperature detection circuit for detecting the current temperature of the radio frequency module; a system-level chip, wherein a first communication end of the system-level chip is connected to an acquisition end of the temperature detection circuit, and a second communication end of the system-level chip is connected to a control end of the radio frequency module; wherein the system-level chip is used to execute the steps of the radio frequency power regulation method described in the first aspect or any possible implementation manner of the first aspect.

[0014] Optionally, the RF module includes an RF transceiver and an RF amplifier, the RF transceiver power is used to indicate the power output by the RF transceiver, one end of the RF transceiver is connected to the second communication end of the system-level chip as the control end of the RF module, and the other end of the RF transceiver is connected to one end of the RF amplifier, wherein the system-level chip is configured to: generate corresponding control instructions according to the power adjustment strategy, and send the control instructions to one end of the RF transceiver through the second communication end, so that the RF transceiver adjusts the RF transceiver power accordingly according to the control instructions.

[0015] Optionally, the temperature detection circuit includes a thermistor and a voltage divider resistor, the thermistor is placed at a corresponding position of the RF amplifier, wherein one end of the thermistor is grounded, the other end of the thermistor is connected to one end of the voltage divider resistor, the other end of the voltage divider resistor is connected to a preset power supply, and the connection between the thermistor and the voltage divider resistor is connected to the first communication end of the system-level chip as an acquisition end of the temperature detection circuit, wherein the system-level chip is configured to: collect the current voltage value of the thermistor through the first communication end of the system-level chip, so as to determine the current temperature of the RF module through the current voltage value.

[0016] An embodiment of the present application provides a method and system for regulating RF power, the method comprising: obtaining the current temperature of the RF module according to a preset period; determining the power regulation strategy corresponding to the target temperature interval according to the target temperature interval to which the current temperature belongs, the power regulation strategy being used to increase or decrease the RF transceiver power of the RF module; and regulating the RF transceiver power of the RF module according to the power regulation strategy. By collecting the current temperature of the RF module according to a period, so that after each current temperature is obtained, by determining the target temperature interval to which the current temperature belongs, the RF transceiver power of the RF module is regulated according to different power regulation strategies corresponding to different target temperature intervals, the technical problem of directly shutting down the RF device when the temperature is too high in the prior art, which causes a sudden interruption of the signal, is solved, and the technical effect of reducing the frequency of sudden shutdown of the RF device and improving the user experience is achieved.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a radio frequency power regulation system provided in an embodiment of the present application is shown.

[0020] Figure 2 A flow chart of a radio frequency power adjustment method provided in an embodiment of the present application is shown.

[0021] Figure 3 A flow chart of another RF power regulation method provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0022] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art, under the guidance of the content of the present application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0023] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0024] In the prior art, the RF front-end circuit design has become more complex, increasing the power loss of the RF front-end link. The power loss of the RF amplifier and the device temperature will also increase, resulting in an increased risk of RF device failure. When RF devices are used in automotive electronics, they will face a more severe high-temperature environment, further exacerbating the risk of RF device failure under high temperatures. At present, RF devices are directly turned off in high-temperature environments to prevent damage to the RF devices. After the RF devices are turned off, the cellular wireless communication function will be lost, which will greatly reduce the high-temperature use safety of customers.

[0025] Among them, since the RF amplifier generally outputs at maximum power, such as 23 dBm or 26 dBm, the RF amplifier will generate a lot of heat, causing the ambient temperature around the RF amplifier to rise, increasing the risk of RF device failure. In other words, the heat released by the RF amplifier is positively correlated with the power output by the RF amplifier. The greater the output power of the RF amplifier, the more heat is released, and the smaller the output power of the RF amplifier, the less heat is released. In addition, since the gain of the RF amplifier is a fixed value, generally 30 dB decibels, if you want to adjust the output power of the amplifier, you can directly adjust the output power of the RF transceiver.

[0026] Based on this, the embodiment of the present application provides a radio frequency power regulation method and system, which collects the current temperature of the radio frequency module according to a periodicity, so that after each time the current temperature is obtained, the target temperature range to which the current temperature belongs is determined, and the radio frequency transceiver power of the radio frequency module is regulated according to different power regulation strategies corresponding to different target temperature ranges, thereby solving the technical problem of directly shutting down the radio frequency device when the temperature is too high in the prior art, resulting in sudden signal interruption, and achieving the technical effect of reducing the frequency of sudden shutdown of the radio frequency device and improving the user experience, which is as follows:

[0027] See also Figure 1 , Figure 1 This is a schematic diagram of a radio frequency power regulation system provided in an embodiment of the present application. Figure 1 As shown, the RF power regulation system includes: a RF module 101; a temperature detection circuit 102, used to detect the current temperature of the RF module; a system-level chip 103, wherein the first communication terminal 3A of the system-level chip is connected to the acquisition terminal of the temperature detection circuit, and the second communication terminal 3B of the system-level chip is connected to the control terminal 1A of the RF module; wherein the system-level chip is used to execute the steps of the RF power regulation method.

[0028] Among them, the RF module includes an RF transceiver 1011 and an RF amplifier 1012, the RF transceiver power is used to indicate the power output by the RF transceiver, one end of the RF transceiver is connected to the second communication end of the system-level chip as the control end of the RF module, and the other end of the RF transceiver is connected to one end of the RF amplifier.

[0029] The RF module also includes an antenna E1, and the RF amplifier is placed between the RF transceiver and the antenna. Then, the RF transceiver outputs the RF signal to the RF amplifier according to the RF transceiver power. The RF amplifier amplifies the RF signal and sends it through the antenna to achieve the transmission of the RF signal. When the RF transceiver power is high, the power of the RF amplifier output signal will increase, and the temperature of the RF amplifier will also increase.

[0030] The temperature detection circuit 102 includes a thermistor R1 and a voltage divider resistor R2, wherein the thermistor is placed at a corresponding position of the RF amplifier, wherein one end of the thermistor is grounded, the other end of the thermistor is connected to one end of the voltage divider resistor, the other end of the voltage divider resistor is connected to a preset power supply VCC, and the connection between the thermistor and the voltage divider resistor is led out as an acquisition end of the temperature detection circuit and connected to the first communication end of the system-level chip.

[0031] Among them, since one end of the thermistor is grounded, the voltage value at the other end of the thermistor as the connection between it and the voltage divider resistor is the voltage value at both ends of the thermistor. Therefore, the temperature value of the environment to which the thermistor belongs can be analyzed by collecting the voltage value at the connection between the thermistor and the voltage divider resistor.

[0032] The temperature detection circuit 102 further includes a filter capacitor C1, which filters the voltage value of the acquisition end of the temperature detection circuit, so that the voltage value of the thermistor collected by the first communication end of the system-level chip is more accurate.

[0033] See also Figure 2 , Figure 2 This is a flow chart of a method for adjusting radio frequency power provided in an embodiment of the present application. Figure 2 As shown, the RF power adjustment method provided in the embodiment of the present application includes the following steps:

[0034] S101: Obtain the current temperature of the RF module according to a preset period.

[0035] That is, after obtaining the current temperature of the RF module this time, the current temperature of the RF module corresponding to the next time can be obtained at a preset interval, so as to obtain the current temperature of the RF module at a preset interval. For example, the preset period can be set to 1 second.

[0036] Specifically, the current temperature of the RF module is obtained in the following manner: the current voltage value of the thermistor is collected to determine the detection temperature corresponding to the current voltage value, the thermistor is placed at the corresponding position of the RF amplifier, and the detection temperature is used to characterize the temperature of the RF amplifier; the detection temperature is used as the current temperature of the RF module.

[0037] Among them, since the voltage value of the preset power supply VCC and the resistance value of the voltage divider resistor are both fixed values, when the resistance value of the thermistor changes, the current flowing through the thermistor and the voltage divider resistor will change, and the voltage value across the thermistor will change, that is, the current voltage value of the thermistor collected will change, and then, the change in resistance value is reflected by collecting the current voltage value of the thermistor, thereby reflecting the temperature change of the environment where the thermistor is located.

[0038] That is to say, the thermistor is placed near the RF amplifier. When the temperature of the RF amplifier changes, the resistance of the thermistor will also change, so that the temperature change of the RF amplifier can be reflected by the resistance change of the thermistor. Therefore, the current resistance value of the thermistor can be determined by collecting the current voltage value of the thermistor, and the temperature of the environment where the thermistor is located can be determined by the current resistance value, and the temperature is used as the temperature of the RF amplifier, so that the temperature of the RF module can be indicated by the temperature of the RF amplifier.

[0039] The system-level chip is configured to collect the current voltage value of the thermistor through the first communication terminal of the system-level chip, so as to determine the current temperature of the radio frequency module through the current voltage value.

[0040] That is to say, the system-level chip collects the current voltage value of the thermistor through the first communication terminal, and calculates the current resistance value of the thermistor according to the resistance value of the voltage divider resistor, the voltage value of the preset power supply and the current voltage value, thereby determining the temperature of the environment where the thermistor is located through the corresponding relationship between the resistance and temperature of the thermistor and the current resistance value, and then using the temperature as the current temperature of the RF module.

[0041] S102: Determine a power adjustment strategy corresponding to the target temperature interval according to the target temperature interval to which the current temperature belongs.

[0042] The power adjustment strategy is used to increase or decrease the power of the RF transceiver of the RF module, that is, to increase or decrease the power of the RF transceiver of the RF module according to the target temperature range to which the current temperature belongs.

[0043] The target temperature range includes a first temperature range or a second temperature range, and the lower limit of the first temperature range is greater than the upper limit of the second temperature range. In other words, any temperature value in the first temperature range is greater than the temperature value covered by the second temperature range, so that the power regulation strategy for increasing or decreasing the power of the RF transceiver of the RF module is determined by the first temperature range and the second temperature range.

[0044] The method also includes: determining whether the current temperature belongs to a preset temperature range; when the current temperature does not belong to the preset temperature range, determining a power adjustment strategy corresponding to the target temperature range based on the target temperature range to which the current temperature belongs; wherein the lower limit value of the preset temperature range is the upper limit value of the second temperature range, and the upper limit value of the preset temperature range is the lower limit value of the first temperature range.

[0045] The preset temperature interval is used to indicate the temperature interval corresponding to which the RF transceiver power does not need to be adjusted. The preset temperature interval is a left-closed and right-open interval that is less than the lower limit value and greater than or equal to the lower limit value. Then, the temperature interval that is greater than or equal to the upper limit value of the preset temperature interval is taken as the first temperature interval, and the temperature interval that is less than the lower limit value of the preset temperature interval is taken as the second temperature interval.

[0046] That is to say, first determine whether the current temperature belongs to the preset temperature range. When the current temperature belongs to the preset temperature range, there is no need to adjust the temperature of the RF transceiver power of the RF module, and it is only necessary to detect the current temperature of the RF module at intervals of a preset period. When the current temperature belongs to the preset temperature range, there is no need to adjust the RF transceiver power; when the current temperature does not belong to the preset temperature range, it is necessary to determine whether the current temperature belongs to the first temperature range or the second temperature range, so as to adjust the RF transceiver power accordingly according to the power adjustment strategy corresponding to the different temperature ranges.

[0047] The upper limit of the preset temperature range should be less than the maximum temperature that the RF amplifier can withstand, so as to prevent the RF amplifier from being damaged due to being in an environment with excessively high temperature. The lower limit of the preset temperature range is used to measure whether the RF transceiver is allowed to increase power, so as to prevent the RF transceiver from not operating at full power when the temperature allows, thereby affecting the signal transmission effect.

[0048] Specifically, determining the power adjustment strategy corresponding to the target temperature range based on the target temperature range to which the current temperature belongs includes: when the current temperature belongs to the first temperature range, determining the power adjustment strategy to reduce the RF transceiver power according to a preset power adjustment amount; when the current temperature belongs to the second temperature range, determining the power adjustment strategy to increase the RF transceiver power according to a preset power adjustment amount.

[0049] That is to say, when the current temperature is greater than or equal to the upper limit of the preset temperature range, that is, when the current temperature belongs to the first temperature range, it is considered that the current temperature is high, and the RF transceiver power needs to be reduced to lower the temperature; when the current temperature is less than the lower limit of the preset temperature range, that is, when the current temperature belongs to the second temperature range, it is considered that the current temperature is low and does not affect the performance of the RF device, and the RF transceiver power can be increased.

[0050] Exemplarily, the preset power adjustment amount may be set to 3 dB.

[0051] S103: Regulate the power of the RF transceiver of the RF module according to the power regulation strategy.

[0052] That is, the RF transceiver is actually controlled to adjust the power by increasing or decreasing the RF transceiver power according to the preset power adjustment amount. That is, the RF transceiver power is controlled to increase the preset power adjustment amount or decrease the preset power adjustment amount, so as to gradually adjust the RF transceiver power.

[0053] Among them, the system-level chip is configured to: generate corresponding control instructions according to the power adjustment strategy, and send the control instructions to one end of the RF transceiver through the second communication end, so that the RF transceiver adjusts the RF transceiver power accordingly according to the control instructions.

[0054] That is to say, when it is determined to adjust the power of the RF transceiver of the RF module according to the power adjustment strategy, the system-level chip will send the control instruction corresponding to increasing the preset power adjustment amount or the control instruction corresponding to decreasing the preset power adjustment amount to one end of the RF transceiver through the second communication end, and then, the RF transceiver increases or decreases the preset power adjustment amount of the RF transceiver power according to the received control instruction.

[0055] The method also includes: determining a target transceiver power after adjustment based on the current transceiver power of the RF module and the power adjustment strategy; determining whether the target transceiver power belongs to a preset power range of the RF module; and when the target transceiver power belongs to the preset power range of the RF module, adjusting the RF transceiver power of the RF module according to the power adjustment strategy.

[0056] The preset power range is used to indicate the power range corresponding to the normal operation of the RF transceiver. That is, before adjusting the RF transceiver power of the RF module, it is necessary to determine in advance whether the adjusted target transceiver power belongs to the preset power range of the RF module.

[0057] That is, after determining a power adjustment strategy for increasing or decreasing the power of the RF transceiver by a preset power adjustment amount, the current power of the RF transceiver is adjusted by the preset power adjustment amount according to the power adjustment strategy to obtain the target transceiver power. Furthermore, when it is determined that the target transceiver power belongs to the preset power range of the RF module, the RF transceiver power of the RF module is power adjusted according to the power adjustment strategy, that is, the RF transceiver power of the RF module is controlled to increase or decrease the preset power adjustment amount.

[0058] When the target transceiver power does not fall within the preset power range of the RF module, the method further includes: determining a target limit of the preset power range corresponding to the power regulation strategy; and determining a processing strategy for the RF transceiver based on a comparison result between the target transceiver power and the target limit.

[0059] The target limit value includes: an upper power limit value of the preset power range corresponding to increasing the power of the RF transceiver, or a lower power limit value of the preset power range corresponding to decreasing the power of the RF transceiver, wherein the processing strategy for the RF transceiver is determined in the following manner: if the target transceiver power is greater than the upper power limit value, the RF transceiver power is controlled to output power according to the upper power limit value; if the target transceiver power is less than the upper power limit value, the RF transceiver is turned off.

[0060] Furthermore, if the power adjustment strategy is to reduce the preset power adjustment amount, the preset power adjustment amount is reduced on the basis of the current power to obtain the target transceiver power, and then, it is determined whether the target transceiver power is less than the power lower limit of the preset power range. If the target transceiver power is less than the power lower limit of the preset power range, the RF transceiver is controlled to stop working.

[0061] That is to say, when the current temperature belongs to the first temperature range, the temperature needs to be lowered, and then the RF transceiver power needs to be reduced. If the preset power adjustment amount is reduced based on the current power and the target transceiver power is less than the lower power limit of the preset power range, it means that the current RF transceiver power needs to be lower but the current temperature is still not lowered. Furthermore, if the preset power adjustment amount is reduced, the RF transceiver power will be too low, affecting signal transmission and failing to quickly reduce the temperature. Therefore, the RF transceiver can be directly turned off.

[0062] Furthermore, if the power adjustment strategy is to increase the preset power adjustment amount, the preset power adjustment amount is added to the current power to obtain the target transceiver power, and then it is determined whether the target transceiver power is greater than the power upper limit value of the preset power range. If the target transceiver power is greater than the power upper limit value of the preset power range, the RF transceiver power is controlled to output power according to the power upper limit value, that is, the output is performed according to the maximum value of the output power when the RF transceiver is working normally.

[0063] That is to say, when the current temperature belongs to the second temperature range, the current temperature is low and the RF transceiver power can be increased. If the preset power adjustment amount is increased on the basis of the current power and the target transceiver power is greater than the power upper limit value of the preset power range, it means that the current RF transceiver power is high, but it does not cause the current temperature to be too high. Furthermore, if the preset power adjustment amount is continuously increased, the power upper limit value will be exceeded, affecting the normal operation of the RF transceiver. Furthermore, when the target transceiver power is greater than the power upper limit value of the preset power range, the RF transceiver can be controlled to output power according to the power upper limit value of the preset power range, that is, the RF transceiver is maintained to output power according to the maximum value of the output power corresponding to normal operation.

[0064] For example, see Figure 3 , Figure 3 This is a flow chart of another RF power adjustment method provided in an embodiment of the present application. Figure 3 As shown, the RF power adjustment method provided in the embodiment of the present application includes the following steps:

[0065] S201: Obtain the current temperature of the RF module according to a preset period.

[0066] S202: Determine whether the current temperature belongs to a preset temperature range.

[0067] When the current temperature belongs to the preset temperature range, there is no need to adjust the power of the RF transceiver.

[0068] S203: Determine whether the current temperature belongs to the first temperature range.

[0069] When the current temperature does not belong to the preset temperature interval, it is determined whether the current temperature belongs to the first temperature interval.

[0070] S204: Determine that the power adjustment strategy is to reduce the power of the RF transceiver according to a preset power adjustment amount.

[0071] When the current temperature belongs to the first temperature range, the power adjustment strategy is determined to reduce the power of the RF transceiver according to a preset power adjustment amount.

[0072] S205: Determine whether the target transceiver power obtained by reducing the current RF transceiver power by a preset power adjustment amount is less than a power lower limit value of a preset power range.

[0073] S206: Control the radio frequency transceiver to stop working.

[0074] When the target transceiver power obtained by reducing the preset power adjustment amount of the current RF transceiver power is less than the power lower limit value of the preset power range, the RF transceiver is controlled to stop working.

[0075] S207: Reducing the power of the RF transceiver of the RF module by a preset power adjustment amount to achieve power adjustment.

[0076] When the target transceiver power obtained by reducing the current RF transceiver power by the preset power adjustment amount is not less than the power lower limit value of the preset power range, the RF transceiver power of the RF module is reduced by the preset power adjustment amount to achieve power adjustment.

[0077] After executing step S206 or step S207, return to step S201 to continue to obtain the current temperature of the RF module according to the preset cycle.

[0078] S208: Determine that the power adjustment strategy is to increase the power of the RF transceiver according to a preset power adjustment amount.

[0079] When the current temperature does not belong to the first temperature range, it means that the current temperature belongs to the second temperature range, and the power adjustment strategy is determined to increase the power of the RF transceiver according to a preset power adjustment amount.

[0080] S209: Determine whether the target transceiver power obtained by increasing the preset power adjustment amount by the current RF transceiver power is greater than the upper power limit of the preset power range.

[0081] S210: Control the radio frequency transceiver to output power according to a power upper limit value within a preset power range.

[0082] When the target transceiver power obtained by increasing the preset power adjustment amount by the current RF transceiver power is greater than the upper power limit of the preset power range, the RF transceiver is controlled to output power according to the upper power limit of the preset power range.

[0083] S211: increasing a preset power adjustment amount to the radio frequency transceiver power of the radio frequency module to achieve power adjustment.

[0084] When the target transceiver power obtained by increasing the preset power adjustment amount by the current RF transceiver power is not greater than the upper power limit of the preset power range, the preset power adjustment amount is increased to the RF transceiver power of the RF module to achieve power adjustment.

[0085] After executing step S210 or step S211, return to step S201 to continue to obtain the current temperature of the RF module according to the preset cycle.

[0086] Furthermore, the RF transceiver power adjustment method shown in the embodiment of the present application can achieve that when the temperature around the RF amplifier reaches the upper limit of the preset temperature range, the RF transceiver is not directly controlled to be turned off, but the output power of the RF transceiver is reduced to gradually confirm whether the temperature will be reduced in the process of reducing the power. If the RF transceiver power is reduced to the lower power limit of the preset power range and the temperature does not meet the preset temperature range, the RF transceiver will be controlled to stop working. In this way, the temperature can be reduced in the process of reducing the RF transceiver power and the RF module can still communicate within a certain high temperature range.

[0087] Furthermore, the control is differentiated by using the upper and lower limits of the preset temperature range to avoid temperature misjudgment caused by applying only one preset temperature value to divide two different strategies, thereby further reducing the risk of device damage caused by temperature misjudgment.

[0088] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0089] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0090] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0091] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0092] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A radio frequency power adjustment method, characterized in that: The method comprises: Acquire the current temperature of the radio frequency module according to a preset period, wherein the radio frequency module includes a radio frequency transceiver; Determine, according to the target temperature interval to which the current temperature belongs, a power adjustment strategy corresponding to the target temperature interval, wherein the power adjustment strategy is used to increase or decrease the power of the RF transceiver of the RF module; The power of the RF transceiver of the RF module is adjusted according to the power adjustment strategy.

2. The method according to claim 1, characterized in that: The target temperature interval includes a first temperature interval or a second temperature interval, the lower limit value of the first temperature interval is greater than the upper limit value of the second temperature interval, Wherein, determining the power adjustment strategy corresponding to the target temperature interval according to the target temperature interval to which the current temperature belongs includes: When the current temperature belongs to the first temperature range, determining that the power adjustment strategy is to reduce the power of the RF transceiver according to a preset power adjustment amount; When the current temperature belongs to the second temperature range, the power adjustment strategy is determined to increase the power of the RF transceiver according to a preset power adjustment amount.

3. The method according to claim 2, characterized in that The method further comprises: Determining whether the current temperature belongs to a preset temperature range; When the current temperature does not belong to the preset temperature range, determining a power adjustment strategy corresponding to the target temperature range according to the target temperature range to which the current temperature belongs; The lower limit value of the preset temperature interval is the upper limit value of the second temperature interval, and the upper limit value of the preset temperature interval is the lower limit value of the first temperature interval.

4. The method according to claim 1 or 2, characterized in that: The method further comprises: Determining a target transceiver power after adjustment according to the current transceiver power of the radio frequency module and the power adjustment strategy; Determining whether the target transceiver power falls within a preset power range of the radio frequency module; When the target transceiver power belongs to the preset power range of the radio frequency module, the radio frequency transceiver power of the radio frequency module is adjusted according to the power adjustment strategy.

5. The method according to claim 4, characterized in that When the target transceiver power does not belong to the preset power range of the radio frequency module, the method further includes: Determining a target limit value of the preset power range corresponding to the power regulation strategy; A processing strategy for the radio frequency transceiver is determined according to a comparison result between the target transceiver power and the target limit.

6. The method according to claim 5, characterized in that The target limit value includes: an upper power limit value of the preset power range corresponding to increasing the power of the RF transceiver, or a lower power limit value of the preset power range corresponding to decreasing the power of the RF transceiver. The processing strategy for the radio frequency transceiver is determined in the following manner: If the target transceiver power is greater than the power upper limit, controlling the RF transceiver power to output power according to the power upper limit; If the target transceiver power is less than the power lower limit, the radio frequency transceiver is turned off.

7. The method according to claim 1, characterized in that The RF module includes a RF transceiver and a RF amplifier. The RF transceiver power is used to indicate the power output by the RF transceiver. The current temperature of the RF module is obtained in the following way: Collecting a current voltage value of a thermistor to determine a detection temperature corresponding to the current voltage value, the thermistor being placed at a corresponding position of the radio frequency amplifier, and the detection temperature being used to characterize the temperature of the radio frequency amplifier; The detected temperature is used as the current temperature of the RF module.

8. A radio frequency power regulation system, characterized in that: The system comprises: RF module; A temperature detection circuit is used to detect the current temperature of the RF module; A system-level chip, wherein a first communication terminal of the system-level chip is connected to the acquisition terminal of the temperature detection circuit, and a second communication terminal of the system-level chip is connected to the control terminal of the radio frequency module; Wherein, the system-level chip is used to execute the steps of the radio frequency power regulation method as described in any one of claims 1 to 7.

9. The system according to claim 8, characterized in that The RF module includes a RF transceiver and a RF amplifier. The RF transceiver power is used to indicate the power output by the RF transceiver. One end of the RF transceiver is connected to the second communication end of the system-level chip as the control end of the RF module, and the other end of the RF transceiver is connected to one end of the RF amplifier. Among them, the system-level chip is configured to: generate corresponding control instructions according to the power adjustment strategy, and send the control instructions to one end of the RF transceiver through the second communication end, so that the RF transceiver adjusts the RF transceiver power accordingly according to the control instructions.

10. The system according to claim 9, characterized in that The temperature detection circuit includes a thermistor and a voltage divider resistor, and the thermistor is placed at a corresponding position of the radio frequency amplifier. One end of the thermistor is grounded, the other end of the thermistor is connected to one end of the voltage divider resistor, the other end of the voltage divider resistor is connected to a preset power supply, and the connection between the thermistor and the voltage divider resistor is connected to the first communication end of the system-level chip as the collection end of the temperature detection circuit. The system-level chip is configured to collect the current voltage value of the thermistor through the first communication terminal of the system-level chip, so as to determine the current temperature of the radio frequency module through the current voltage value.

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