Component parameter determination method, device, equipment and storage medium

Abstract

The embodiment of the present application provides a component parameter determination method, device, equipment and storage medium, the method comprising: obtaining the system noise floor of the radio frequency circuit, the radio frequency circuit comprising a radio frequency transceiver chip, a transceiver duplexer and a radio frequency power amplifier; determining the maximum interference signal strength of the radio frequency transceiver chip under the preset sensitivity condition according to the system noise floor and at least one interference signal of an external signal source; determining the simulated isolation of the radio frequency circuit; determining the device parameters of the radio frequency power amplifier according to the maximum interference signal strength and the simulated isolation. The accuracy of determining component parameters is improved.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method, device, equipment and storage medium for determining component parameters. Background Art

[0002] RF circuits usually include multiple devices, such as RF transceiver chips, transceiver duplexers, filters, and RF power amplifiers. When designing RF circuits, it is necessary to consider the parameters of each device and select the device based on the device parameters.

[0003] In related technologies, the device parameters of each device in the RF circuit are usually designed based on human experience. However, in actual applications, the terminal equipment may support multi-band communications such as 4G and 5G, and the terminal equipment may be equipped with RF circuits of various standards. If the selection of each device and the design of the RF circuit are performed based on human experience, the receiver sensitivity index often fails to meet the standard when entering the actual debugging stage, resulting in low accuracy in the determination of component parameters. Summary of the invention

[0004] The embodiments of the present application relate to a component parameter determination method, apparatus, device and storage medium, which are used to solve the defect of low accuracy in determining component parameters in the prior art.

[0005] In a first aspect, an embodiment of the present application provides a method for determining component parameters, including:

[0006] Acquire a system noise floor of a radio frequency circuit, wherein the radio frequency circuit includes a radio frequency transceiver chip, a transceiver duplexer, and a radio frequency power amplifier;

[0007] Determine the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition according to the system background noise and at least one interference signal of an external signal source;

[0008] Determining a simulated isolation of the radio frequency circuit;

[0009] The device parameters of the radio frequency power amplifier are determined according to the maximum interference signal strength and the simulated isolation.

[0010] In a possible implementation, determining the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition according to the system background noise and at least one interference signal of an external signal source includes:

[0011] Determine a first signal strength, and according to the first signal strength, control the external signal source to transmit a first interference signal, and obtain a first sensitivity attenuation value corresponding to the first interference signal according to the system background noise;

[0012] If the first sensitivity attenuation value is equal to a preset threshold, determining the first signal strength as the maximum interference signal strength;

[0013] If the first sensitivity attenuation value is not equal to the preset threshold, the i-th signal strength is determined; according to the i-th signal strength, the external signal source is controlled to transmit the i-th interference signal, and according to the system background noise, the i-th sensitivity attenuation value corresponding to the i-th interference signal is obtained; wherein, i is successively taken as 2, 3, ..., until the i-1th sensitivity attenuation value is less than the preset threshold and the i-th sensitivity attenuation value is greater than the preset threshold, the i-1th signal strength is determined as the maximum interference signal strength.

[0014] In a possible implementation manner, determining the first signal strength includes:

[0015] Obtaining the maximum background noise of the radio frequency circuit in a preset frequency band;

[0016] The first signal strength is determined according to the maximum background noise.

[0017] In a possible implementation manner, determining the i-th signal strength includes:

[0018] Get the preset step size;

[0019] The sum of the (i-1)th signal strength and the preset step length is determined as the (i)th signal strength.

[0020] In a possible implementation manner, controlling the external signal source to transmit the i-th interference signal includes:

[0021] Get the center frequency of the preset frequency band;

[0022] The external signal source is controlled to transmit the i-th interference signal to the radio frequency circuit at the center frequency.

[0023] In a possible implementation manner, determining the simulated isolation of the radio frequency circuit includes:

[0024] Obtaining device parameters of the transceiver duplexer;

[0025] A simulation circuit is determined according to the device parameters, and simulation processing is performed through the simulation circuit to obtain a simulated isolation degree of the radio frequency circuit.

[0026] In a possible implementation manner, determining the device parameters of the radio frequency power amplifier according to the maximum interference signal strength and the simulated isolation includes:

[0027] Get the bandwidth of the preset frequency band;

[0028] The device parameters of the radio frequency power amplifier are determined according to the frequency bandwidth, the maximum interference signal strength and the simulated isolation.

[0029] In a second aspect, an embodiment of the present application provides a component parameter determination device, including:

[0030] An acquisition module, used to acquire the system noise floor of a radio frequency circuit, wherein the radio frequency circuit includes a radio frequency transceiver chip, a transceiver duplexer, and a radio frequency power amplifier;

[0031] A first determination module, configured to determine the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition according to the system background noise and at least one interference signal of an external signal source;

[0032] A second determination module, used to determine the simulated isolation of the radio frequency circuit;

[0033] The third determination module is used to determine the device parameters of the radio frequency power amplifier according to the maximum interference signal strength and the simulated isolation.

[0034] In a possible implementation manner, the first determining module is specifically configured to:

[0035] Determine a first signal strength, and according to the first signal strength, control the external signal source to transmit a first interference signal, and obtain a first sensitivity attenuation value corresponding to the first interference signal according to the system background noise;

[0036] If the first sensitivity attenuation value is equal to a preset threshold, determining the first signal strength as the maximum interference signal strength;

[0037] If the first sensitivity attenuation value is not equal to the preset threshold, the i-th signal strength is determined; according to the i-th signal strength, the external signal source is controlled to transmit the i-th interference signal, and according to the system background noise, the i-th sensitivity attenuation value corresponding to the i-th interference signal is obtained; wherein, i is successively taken as 2, 3, ..., until the i-1th sensitivity attenuation value is less than the preset threshold and the i-th sensitivity attenuation value is greater than the preset threshold, the i-1th signal strength is determined as the maximum interference signal strength.

[0038] In a possible implementation manner, the first determining module is specifically configured to:

[0039] Obtaining the maximum background noise of the radio frequency circuit in a preset frequency band;

[0040] The first signal strength is determined according to the maximum background noise.

[0041] In a possible implementation manner, the first determining module is specifically configured to:

[0042] Get the preset step size;

[0043] The sum of the (i-1)th signal strength and the preset step length is determined as the (i)th signal strength.

[0044] In a possible implementation manner, the first determining module is specifically configured to:

[0045] Get the center frequency of the preset frequency band;

[0046] The external signal source is controlled to transmit the i-th interference signal to the radio frequency circuit at the center frequency.

[0047] In a possible implementation manner, the second determining module is specifically configured to:

[0048] Obtaining device parameters of the transceiver duplexer;

[0049] A simulation circuit is determined according to the device parameters, and simulation processing is performed through the simulation circuit to obtain a simulated isolation degree of the radio frequency circuit.

[0050] In a possible implementation manner, the third determining module is specifically configured to:

[0051] Get the bandwidth of the preset frequency band;

[0052] The device parameters of the radio frequency power amplifier are determined according to the frequency bandwidth, the maximum interference signal strength and the simulated isolation.

[0053] In a third aspect, an embodiment of the present application provides a component parameter determination device, including: a memory and a processor;

[0054] The memory stores computer-executable instructions;

[0055] The processor executes the computer-executable instructions stored in the memory to implement the component parameter determination method as described in any one of the first aspects.

[0056] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement any of the methods described in the first aspect.

[0057] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which implements any method in the first aspect when executed by a processor.

[0058] The embodiment of the present application provides a component parameter determination method, device, equipment and storage medium. In this method, by obtaining the system noise floor of the RF circuit, the maximum interference signal strength of the RF transceiver chip under the preset sensitivity condition is determined according to the system noise floor and at least one interference signal of the external signal source, the simulation isolation of the RF circuit is determined, and the device parameters of the RF power amplifier are determined according to the maximum interference signal strength and the simulation isolation. In this way, a reasonable RF circuit design is determined in the early stage of RF circuit development, avoiding the selection of RF devices based on human experience in the prior art, which leads to the inability to improve the interference between RF devices in the actual debugging stage, and improving the accuracy of determining component parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0060] Figure 1 A schematic diagram of an application scenario provided for an embodiment of the present application;

[0061] Figure 2 A schematic diagram of a flow chart of a component parameter determination method provided in an embodiment of the present application;

[0062] Figure 3 A schematic diagram of a flow chart of another component parameter determination method provided in an embodiment of the present application;

[0063] Figure 4 A schematic diagram of isolation simulation of a transceiver duplexer provided in an embodiment of the present application;

[0064] Figure 5 A schematic diagram of the structure of a device for determining component parameters provided in an embodiment of the present application;

[0065] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0066] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution 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. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0068] It should be noted that, although the terms "first", "second", etc. are used to describe various information in the embodiments of the present application, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. Optionally, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.

[0069] It should be understood that the terms "comprises" and "includes" indicate the presence of the previously mentioned features, steps, operations, but do not exclude the presence, occurrence or addition of one or at least one other feature, step, operation. The terms "and / or" and the like used in this application may be interpreted as inclusive, or mean any one or any combination. Optionally, "A and / or B" means "any of the following: A; B; A and B". In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship.

[0070] Figure 1 This is a schematic diagram of an application scenario provided by the embodiment of this application. Figure 1 , Figure 1 This is a schematic diagram of the structure of a radio frequency circuit. The radio frequency circuit can be applied to a variety of wireless communication systems.

[0071] For example, the systems in which the radio frequency circuit is applicable may include: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, etc.

[0072] Optionally, the radio frequency circuit includes: a radio frequency power amplifier 101, a transceiver duplexer 102 and a radio frequency transceiver chip 103. The transceiver duplexer 102 includes: a radio frequency transmitting end TX, a radio frequency receiving end RX and an antenna end ANT. The radio frequency circuit can transmit and receive signals.

[0073] During the process of signal transmission by the RF circuit, the RF transceiver chip 103 can generate a modulated wave of the RF signal; the modulated wave is sent to the RF power amplifier 101 through the transmission channel; the RF power amplifier 101 amplifies the modulated wave to a preset RF output power so that the amplified modulated wave has a long-distance transmission capability; the amplified modulated wave is sent to the transceiver duplexer 102 through the transmission channel for transmission.

[0074] In the process of receiving signals by the radio frequency circuit, the transceiver duplexer 102 can receive the modulated wave of the radio frequency signal; send the modulated wave to the radio frequency transceiver chip 103 through the receiving channel, and the radio frequency transceiver chip 103 converts the modulated wave into a corresponding radio frequency signal. Among them, the working type of the transceiver duplexer 102 may include time division duplexing and frequency division duplexing. For example, the transceiver duplexer 102 can transmit and receive modulated waves at the same time by selecting different frequency bands in the frequency division duplexing mode.

[0075] In actual applications, the internal space of the terminal device is limited. Usually, various types of RF devices are placed in the narrow space inside the terminal device. When the terminal device is working, the RF devices will interfere with each other. For example, the transceiver duplexer 102 works in the frequency division duplex mode, transmitting and receiving modulated waves at the same time. The noise generated by the RF power amplifier 101 will fall into the receiving channel due to the limited duplex isolation, causing the system noise floor in the receiving channel to increase, the sensitivity to weaken, and fail to meet the certification standards.

[0076] In related technologies, since all manufacturers currently select RF devices, place each device, design RF circuits, and route the devices based on human experience, factors such as unreasonable device parameter selection and inappropriate RF circuit design will aggravate the interference between RF devices.

[0077] In order to solve the above technical problems, an embodiment of the present application provides a component parameter determination method. In the early stage of RF circuit development, an interference signal is added to the RF circuit to obtain the maximum interference power that meets the tolerable sensitivity conditions. The maximum interference power is used to evaluate the device parameter indicators of the RF power amplifier, and a reasonable RF circuit design is performed, thereby improving the accuracy of determining component parameters.

[0078] The technical solution shown in the present application is described in detail below through specific embodiments. It should be noted that the following embodiments can exist independently or in combination with each other, and the same or similar contents will not be described repeatedly in different embodiments.

[0079] Figure 2 A flowchart of a component parameter determination method provided in an embodiment of the present application. The execution subject of the embodiment of the present application can be an electronic device, or a component parameter determination device set in an electronic device. The component parameter determination device can be implemented by software, or by a combination of software and hardware. Figure 2 , the method comprising:

[0080] S201. Obtain system noise floor of a radio frequency circuit.

[0081] The system noise floor may be: the noise generated by the RF circuit when the RF circuit transmits a signal at a preset power.

[0082] In this embodiment, the system noise floor may be determined according to the system bandwidth of the radio frequency circuit.

[0083] Optionally, the system noise floor is -174+10*lg(BW), where BW is the system bandwidth in Hz. When the communication system in which the RF chip is located is different, the BW is also different.

[0084] For example, when the communication system in which the radio frequency chip is located is a CDMA system, the system bandwidth is 1.25 MHz, and the maximum background noise of the system is -174+10*lg(1.25*10^6)=-113 dBm.

[0085] For another example, when the communication system in which the radio frequency chip is located is an LTE system, the system bandwidth is 10 MHz, and the maximum background noise of the system is -174+10*lg(10*10^6)=-104dbm.

[0086] S202: Determine the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition according to the system background noise and at least one interference signal of an external signal source.

[0087] The external signal source may be a signal transmitting device, and the external signal source may transmit an interference signal to the radio frequency transmitting circuit.

[0088] In a possible implementation, the preset sensitivity condition may be a condition that the sensitivity attenuation value needs to satisfy. For example, the preset sensitivity condition may be that the sensitivity attenuation value is less than or equal to a preset threshold. Sensitivity attenuation (Desense) refers to a decrease in receiving sensitivity due to interference in a transmission channel. The sensitivity attenuation value may be expressed as the magnitude of the interference intensity of the receiving sensitivity. The greater the sensitivity attenuation value, the greater the interference intensity of the receiving sensitivity.

[0089] A maximum interference signal strength that satisfies a preset sensitivity attenuation value may be determined based on system background noise and at least one interference signal from an external signal source.

[0090] S203: Determine the simulated isolation of the radio frequency circuit.

[0091] The device parameters of the radio frequency circuit can be obtained, a simulation circuit can be determined according to the device parameters, and simulation processing can be performed through the simulation circuit to determine the simulation isolation of the radio frequency circuit.

[0092] The simulation circuit may include the pendulums of each device in the simulation RF circuit, PCB traces, and ground vias of the transceiver duplexer.

[0093] The simulated isolation may include the isolation from the output port of the RF power amplifier, through the transceiver duplexer, to the receiving port of the RF transceiver chip. For example, the simulated isolation includes the isolation generated by the PCB traces, the ground vias of the transceiver duplexer, and the transceiver duplexer ornaments.

[0094] S204: Determine device parameters of the radio frequency power amplifier according to the maximum interference signal strength and the simulated isolation.

[0095] According to the maximum interference signal strength and the simulated isolation, the index of the in-band spurious (tx noise in rx band) generated by the RF power amplifier can be calculated. Based on this index, the device parameters of the required RF power amplifier can be determined.

[0096] For example, when the communication system where the RF chip is located is an LTE system and the system bandwidth is 10MHz, assuming that the tx noise in rx band index of the RF power amplifier is X, the determined maximum interference signal strength is -106dbm, and the determined isolation is 55db, the value of X can be derived by X-55+10*lg(10*10^6)=-106.

[0097] The component parameter determination method provided in this embodiment obtains the system noise floor of the RF circuit, determines the maximum interference signal strength of the RF transceiver chip under the preset sensitivity condition according to the system noise floor and at least one interference signal of the external signal source, determines the simulated isolation of the RF circuit, and determines the device parameters of the RF power amplifier according to the maximum interference signal strength and the simulated isolation. In this way, a reasonable RF circuit design is determined in the early stage of RF circuit development, avoiding the selection of RF devices based on human experience in the prior art, which leads to the inability to improve the interference between RF devices in the actual debugging stage, and improves the accuracy of determining component parameters.

[0098] Figure 3 A schematic diagram of a method for determining component parameters provided in an embodiment of the present application. Based on the above embodiment, see Figure 3 , the method is described in detail. The method comprises:

[0099] S301: Obtain system noise floor of a radio frequency circuit.

[0100] The execution process of S301 can refer to the execution process of S201, which will not be described in detail here.

[0101] S302: Determine a first signal strength.

[0102] The first signal strength may be the strength of an interference signal transmitted to the radio frequency circuit by the external signal source for the first time.

[0103] The first signal strength may be determined in the following manner: obtaining a maximum background noise of the radio frequency circuit in a preset frequency band; and determining the first signal strength according to the maximum background noise.

[0104] The maximum background noise of the radio frequency circuit in the preset frequency band may be: the noise generated when the radio frequency circuit transmits a signal at the maximum power in the preset frequency band. The signal strength corresponding to the maximum background noise may be determined as the first signal strength, or a value near the signal strength corresponding to the maximum background noise may be determined as the first signal strength. For example, the sum of the signal strength corresponding to the maximum background noise and the preset signal strength may be determined as the first signal strength.

[0105] S303: Control the external signal source to transmit a first interference signal according to the first signal strength.

[0106] The first signal strength may be sent to the external signal source, so that the external signal source transmits the first interference signal according to the first signal strength.

[0107] S304: Obtain a first sensitivity attenuation value corresponding to the first interference signal according to the system background noise.

[0108] An external signal source inputs a first interference signal into the RF circuit. At this time, in addition to the system background noise generated by the RF circuit itself, the RF circuit is also affected by the first interference signal, which may cause the signal-to-noise ratio of the RF circuit's receiving frequency band to deteriorate, the receiving sensitivity to decrease, and the sensitivity attenuation value to increase.

[0109] Optionally, the sensitivity attenuation value corresponding to the first interference signal input into the RF circuit may be determined according to the influence of the system background noise and the first interference signal on the RF circuit. A sensitivity test may be performed to determine the first sensitivity attenuation value.

[0110] S305: Determine whether the first sensitivity attenuation value is equal to a preset threshold.

[0111] If yes, execute S306.

[0112] If not, execute S307.

[0113] The sensitivity attenuation value can indicate the intensity of interference to the receiving sensitivity. If the sensitivity attenuation value is 0, it means that the receiving sensitivity is not interfered. The preset threshold is a preset acceptable sensitivity attenuation value, which can be determined by the manufacturer based on the application scenario.

[0114] S306: Determine the first signal strength as the maximum interference signal strength.

[0115] After S306, S314 is executed.

[0116] If the first sensitivity attenuation value is equal to the preset threshold, it can be indicated that after the first interference signal is input into the radio frequency circuit, the magnitude of the interference intensity of the receiving sensitivity is equal to the preset threshold, that is, equal to the preset acceptable sensitivity interference intensity. Further, the first signal strength can be determined as the maximum interference signal strength, and S314 is executed.

[0117] The maximum interference signal strength can be expressed as the maximum interference signal strength that the RF circuit can withstand when the external interference signal strength continues to increase and the sensitivity attenuation value reaches the preset threshold. If the sensitivity attenuation value is greater than the preset threshold, the RF circuit cannot meet the standards required by the manufacturer and cannot pass the acceptance test.

[0118] S307. Initialize i to 2.

[0119] S308: Determine the i-th signal strength.

[0120] In this embodiment, initially, i is 2, and the second signal strength is determined. Then, i is 3, 4, ..., and accordingly, the third, fourth, ... signal strengths are determined.

[0121] The i-th signal strength may be determined in the following manner: obtaining a preset step length; and determining the sum of the i-1-th signal strength and the preset step length as the i-th signal strength.

[0122] For example, the preset step size can be added to the first signal strength to obtain the second signal strength. For example, if the first signal strength is -100dbm and the preset step size is -2db, the second signal strength is -102dbm. Correspondingly, the third signal strength is -104dbm, the fourth signal strength is -106dbm, and so on.

[0123] S309: According to the strength of the i-th signal, control the external signal source to transmit the i-th interference signal.

[0124] The external signal source may transmit the ith interference signal to the radio frequency circuit based on the ith signal strength in sequence, wherein the signal strength of the ith interference signal is the ith signal strength.

[0125] S310 . Obtain an i th sensitivity attenuation value corresponding to an i th interference signal according to the system background noise.

[0126] It should be noted that the process of obtaining the i-th sensitivity attenuation value is similar to the process of obtaining the first sensitivity attenuation value, and will not be repeated here.

[0127] S311 , determining whether the (i-1)th sensitivity attenuation value is less than a preset threshold and the (i)th sensitivity attenuation value is greater than a preset threshold.

[0128] If yes, execute S313.

[0129] Otherwise, execute S312.

[0130] In an embodiment, if the i-1th sensitivity attenuation value is less than the preset threshold and the i-th sensitivity attenuation value is greater than the preset threshold, it can be determined that the i-1th sensitivity attenuation value is the maximum sensitivity attenuation value within the preset threshold, and then S313 is executed.

[0131] If the i-th sensitivity attenuation value is less than the preset threshold, it is impossible to determine whether the i-th sensitivity attenuation value is the maximum sensitivity attenuation value within the preset threshold, and S312 is executed to make another determination.

[0132] S312: Update i to i+1.

[0133] In an embodiment, i is updated to i+1, and S308 may be continued to be executed to further determine whether the i+1th sensitivity attenuation value is a maximum sensitivity attenuation value within a preset threshold.

[0134] S313: Determine the (i-1)th signal strength as the maximum interference signal strength.

[0135] After S313, S314 is executed.

[0136] In an embodiment, if the i-1th sensitivity attenuation value is less than the preset threshold and the i-th sensitivity attenuation value is greater than the preset threshold, the i-1th sensitivity attenuation value can be determined as the maximum sensitivity attenuation value within the preset threshold, and the i-1th signal strength can be determined as the maximum interference signal strength.

[0137] For example, when the communication system where the RF chip is located is an LTE system, the system bandwidth is 10MHz, the preset step size is -2db, and the preset threshold is 0.8db. The maximum noise floor of the system is -174+10*lg(10*10^6)=-104dbm. Based on the maximum noise floor, the first interference signal strength is determined to be -104dbm, or the first interference signal strength is -100dbm, which is a value near the maximum noise floor. Taking the first interference signal strength of -104dbm as an example, the sensitivity attenuation value of the RF circuit is tested based on the first interference signal strength of -104dbm to determine whether the sensitivity attenuation value reaches the preset threshold. If the sensitivity attenuation value is 0.5db at this time and does not reach the preset threshold, the interference signal strength is increased according to the preset step size, and the second interference signal strength is determined to be -106dbm. Then test the sensitivity attenuation value of the RF circuit according to the second interference signal strength. If the sensitivity attenuation value is 0.8db, which is equal to the preset threshold, the second interference signal strength can be considered as the maximum receivable interference signal strength; if the sensitivity attenuation value corresponding to the second interference signal strength is 0.7db, which does not reach the preset threshold, continue to increase the interference signal strength according to the preset step size, and determine that the third interference signal strength is -108dbm. Test the sensitivity attenuation value of the RF circuit according to the third interference signal strength. If the sensitivity attenuation value corresponding to the third interference signal strength is 0.9db, which is greater than the preset threshold, it is determined that the sensitivity attenuation value corresponding to the third interference signal strength cannot meet the requirements, and then determine the second interference signal strength as the maximum receivable interference signal strength.

[0138] S314: Obtain device parameters of the transceiver duplexer.

[0139] In the embodiment, the transceiver duplexer can generate a large degree of isolation in the radio frequency circuit, so that the transmission channel and the receiving channel will not be interfered with each other to a certain extent. In practical applications, different transceiver duplexer device parameters can be selected based on the manufacturer's requirements for the radio frequency circuit to achieve different radio frequency circuit designs.

[0140] S315 , determining a simulation circuit according to the device parameters, and performing simulation processing through the simulation circuit to obtain a simulation isolation of the radio frequency circuit.

[0141] In an embodiment, the RF circuit isolation is simulated based on the device parameters of the transceiver duplexer. The starting point of the simulation channel is the output port of the RF power amplifier, passes through the transceiver duplexer, and ends at the receiving port of the RF transceiver chip to determine the isolation of the simulation channel.

[0142] The following is an example of determining the simulated isolation of a transceiver duplexer.

[0143] like Figure 4 As shown, the Figure 4The following is a schematic diagram of the isolation simulation of a transceiver duplexer. The simulation process can be performed in ADS (Advanced Design System), which is used for RF, microwave and signal integrity applications. By simulating the transceiver duplexer, the simulated isolation of the transceiver duplexer can be obtained.

[0144] The horizontal axis represents the operating frequency of the transceiver duplexer in MHz, and the vertical axis represents the simulated isolation in db. Point m1 represents the isolation between TX and RX, point m2 represents the insertion loss of the transmitter, and point m3 represents the insertion loss of the receiver. From the simulation results of point m1, it can be obtained that when the transceiver duplexer works at 958.0MHz, the simulated isolation is -55db.

[0145] Optionally, during the simulation process, the pendulums of each device in the simulated RF circuit, PCB routing, and ground vias of the transceiver duplexer can be dynamically adjusted to improve the simulation results of the RF circuit so that the simulation results meet the design requirements.

[0146] S316. Determine device parameters of the radio frequency power amplifier according to the maximum interference signal strength and isolation.

[0147] The device parameters of the RF power amplifier can be determined in the following manner: obtaining the bandwidth of a preset frequency band; and determining the device parameters of the RF power amplifier according to the bandwidth, the maximum interference signal strength, and the simulated isolation.

[0148] Optionally, the device parameters of the RF power amplifier are determined as follows: X-duplexer isolation+10*lg(BW)=maximum interference signal strength, where BW is the system bandwidth and X is the tx noise in rx band indicator of the RF power amplifier.

[0149] Based on the duplexer isolation and the maximum interference signal strength determined in the above steps, the tx noise in rx band index X of the RF power amplifier can be determined. Based on X, the device parameters of the required RF power amplifier can be determined.

[0150] The implementation content of each step in the embodiment of the present application can refer to the description of the corresponding steps or operations in the above method embodiment, and repeated content will not be repeated.

[0151] The component parameter determination method provided in the present embodiment controls an external signal source to transmit a first interference signal according to a determined first signal strength, obtains a first sensitivity attenuation value corresponding to the first interference signal according to a system background noise, and determines the first signal strength as a maximum interference signal strength if the first sensitivity attenuation value is equal to a preset threshold value; if the first sensitivity attenuation value is not equal to the preset threshold value, determines an i-th signal strength, controls an external signal source to transmit an i-th interference signal according to the i-th signal strength, and obtains an i-th sensitivity attenuation value corresponding to the i-th interference signal according to the system background noise; wherein, i is successively 2, 3, ..., until the i-1th sensitivity attenuation value is less than the preset threshold value and the i-th sensitivity attenuation value is greater than the preset threshold value, determines the i-1th signal strength as the maximum interference signal strength, determines a simulation circuit according to the device parameters of the transceiver duplexer, performs simulation processing through the simulation circuit, obtains a simulation isolation of the RF circuit, and determines the device parameters of the RF power amplifier according to the maximum interference signal strength and the simulation isolation. In this way, in the early stage of RF circuit development, a reasonable RF circuit design is determined through the sensitivity attenuation value, avoiding the selection of RF devices based on human experience in the existing technology, which leads to the inability to improve the interference between RF devices in the actual debugging stage, and improves the accuracy of determining component parameters.

[0152] Figure 5 This is a schematic diagram of the structure of a component parameter determination device provided in an embodiment of the present application. Figure 5 The device 500 includes an acquisition module 501, a first determination module 502, a second determination module 503 and a third determination module 504, wherein:

[0153] An acquisition module 501 is used to acquire the system noise floor of a radio frequency circuit, where the radio frequency circuit includes a radio frequency transceiver chip, a transceiver duplexer, and a radio frequency power amplifier;

[0154] A first determination module 502 is used to determine the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition according to the system background noise and at least one interference signal of an external signal source;

[0155] A second determination module 503, used to determine the simulated isolation of the radio frequency circuit;

[0156] The third determination module 504 is used to determine the device parameters of the radio frequency power amplifier according to the maximum interference signal strength and the simulated isolation.

[0157] In a possible implementation manner, the first determining module 502 is specifically configured to:

[0158] Determine a first signal strength, and according to the first signal strength, control an external signal source to transmit a first interference signal, and obtain a first sensitivity attenuation value corresponding to the first interference signal according to the system background noise;

[0159] If the first sensitivity attenuation value is equal to the preset threshold, determining the first signal strength as the maximum interference signal strength;

[0160] If the first sensitivity attenuation value is not equal to the preset threshold, the i-th signal strength is determined; according to the i-th signal strength, the external signal source is controlled to transmit the i-th interference signal, and according to the system background noise, the i-th sensitivity attenuation value corresponding to the i-th interference signal is obtained; wherein, i is 2, 3, ... in sequence, until the i-1th sensitivity attenuation value is less than the preset threshold and the i-th sensitivity attenuation value is greater than the preset threshold, the i-1th signal strength is determined as the maximum interference signal strength.

[0161] In a possible implementation manner, the first determining module 502 is specifically configured to:

[0162] Get the maximum background noise of the RF circuit in the preset frequency band;

[0163] The first signal strength is determined according to the maximum background noise.

[0164] In a possible implementation manner, the first determining module 502 is specifically configured to:

[0165] Get the preset step size;

[0166] The sum of the (i-1)th signal strength and the preset step length is determined as the i-th signal strength.

[0167] In a possible implementation manner, the first determining module 502 is specifically configured to:

[0168] Get the center frequency of the preset frequency band;

[0169] The external signal source is controlled to transmit the i-th interference signal to the radio frequency circuit at the center frequency.

[0170] In a possible implementation manner, the second determining module 503 is specifically configured to:

[0171] Get the device parameters of the transceiver duplexer;

[0172] A simulation circuit is determined according to device parameters, and simulation processing is performed through the simulation circuit to obtain a simulated isolation degree of the radio frequency circuit.

[0173] In a possible implementation manner, the third determining module 504 is specifically configured to:

[0174] Get the bandwidth of the preset frequency band;

[0175] Determine the device parameters of the RF power amplifier based on the bandwidth, maximum interference signal strength and simulated isolation.

[0176] Figure 6This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 6 , the electronic device 600 may include: a memory 601 , a processor 602 , and a transceiver 603 .

[0177] The memory 601 is used to store program instructions;

[0178] The processor 602 is used to execute the program instructions stored in the memory, so as to enable the electronic device 20 to execute any of the component parameter determination methods shown above.

[0179] The transceiver 603 may include: a transmitter and / or a receiver. The transmitter may also be referred to as a transmitter, a transmitter, a transmission port, a transmission interface, or the like, and the receiver may also be referred to as a receiver, a reception port, a reception interface, or the like. Exemplarily, the memory 601, the processor 602, and the transceiver 603 are interconnected via a bus 604.

[0180] The embodiment of the present application also provides a computer program product, which can be executed by a processor. When the computer program product is executed, the above-mentioned component parameter determination method can be implemented.

[0181] The component parameter determination device, electronic device, computer-readable storage medium and computer program product of the embodiments of the present application can execute the technical solutions shown in the above-mentioned component parameter determination method embodiments. Their implementation principles and beneficial effects are similar and will not be repeated here.

[0182] All or part of the steps of the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a readable memory. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned memory (storage medium) includes: read-only memory (ROM), random access memory (RAM), flash memory, hard disk, solid state drive, magnetic tape, floppy disk, optical disc and any combination thereof.

[0183] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processing unit of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processing unit of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0184] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0185] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0186] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for determining component parameters, characterized in that: include: Acquire a system noise floor of a radio frequency circuit, wherein the radio frequency circuit includes a radio frequency transceiver chip, a transceiver duplexer, and a radio frequency power amplifier; Determine the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition according to the system background noise and at least one interference signal of an external signal source; Determining a simulated isolation of the radio frequency circuit; The device parameters of the radio frequency power amplifier are determined according to the maximum interference signal strength and the simulated isolation.

2. The method according to claim 1, characterized in that The determining, based on the system background noise and at least one interference signal from an external signal source, the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition comprises: Determine a first signal strength, and according to the first signal strength, control the external signal source to transmit a first interference signal, and obtain a first sensitivity attenuation value corresponding to the first interference signal according to the system background noise; If the first sensitivity attenuation value is equal to a preset threshold, determining the first signal strength as the maximum interference signal strength; If the first sensitivity attenuation value is not equal to the preset threshold, the i-th signal strength is determined; according to the i-th signal strength, the external signal source is controlled to transmit the i-th interference signal, and according to the system background noise, the i-th sensitivity attenuation value corresponding to the i-th interference signal is obtained; wherein, i is successively taken as 2, 3, ..., until the i-1th sensitivity attenuation value is less than the preset threshold and the i-th sensitivity attenuation value is greater than the preset threshold, the i-1th signal strength is determined as the maximum interference signal strength.

3. The method according to claim 2, characterized in that The determining the first signal strength includes: Obtaining the maximum background noise of the radio frequency circuit in a preset frequency band; The first signal strength is determined according to the maximum background noise.

4. The method according to claim 2, characterized in that: The determining the i-th signal strength comprises: Get the preset step size; The sum of the (i-1)th signal strength and the preset step length is determined as the (i)th signal strength.

5. The method according to any one of claims 2 to 4, characterized in that: The controlling the external signal source to transmit the i-th interference signal comprises: Get the center frequency of the preset frequency band; The external signal source is controlled to transmit the i-th interference signal to the radio frequency circuit at the center frequency.

6. The method according to any one of claims 2 to 4, characterized in that: The determining of the simulated isolation of the radio frequency circuit comprises: Obtaining device parameters of the transceiver duplexer; A simulation circuit is determined according to the device parameters, and simulation processing is performed through the simulation circuit to obtain a simulated isolation degree of the radio frequency circuit.

7. The method according to any one of claims 2 to 4, characterized in that: Determining the device parameters of the radio frequency power amplifier according to the maximum interference signal strength and the simulated isolation includes: Get the bandwidth of the preset frequency band; The device parameters of the radio frequency power amplifier are determined according to the frequency bandwidth, the maximum interference signal strength and the simulated isolation.

8. A component parameter determination device, characterized in that: include: An acquisition module, used to acquire the system noise floor of a radio frequency circuit, wherein the radio frequency circuit includes a radio frequency transceiver chip, a transceiver duplexer, and a radio frequency power amplifier; A first determination module, configured to determine the maximum interference signal strength of the radio frequency transceiver chip under a preset sensitivity condition according to the system background noise and at least one interference signal of an external signal source; A second determination module, used to determine the simulated isolation of the radio frequency circuit; The third determination module is used to determine the device parameters of the radio frequency power amplifier according to the maximum interference signal strength and the simulated isolation.

9. A component parameter determination device, characterized in that: include: memory, processors, and transceivers; Wherein, the memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the component parameter determination method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the component parameter determination method according to any one of claims 1 to 7.

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