Method, device and electronic device for calculating reference signal received power

Abstract

The present application provides a method, device, electronic device and storage medium for calculating the received power of a reference signal, the method comprising: obtaining the signal transmission parameters of a signal transmitting device, and determining the fixed frequency response compensation value corresponding to the signal transmission parameters; obtaining the first device information of the communication device to be tested, and determining the front-end frequency response compensation value of the communication device to be tested based on the first device information; compensating the first received signal based on the fixed frequency response compensation value and the front-end frequency response compensation value, and calculating the received power of the reference signal of the communication device to be tested based on the compensated first received signal. Since the filters inside the RF chip transceivers of different communication devices have high consistency, the fixed frequency response compensation value only changes according to the changes in the signal transmission parameters, and thus, when facing different frequency responses caused by different projects, there is no need to recalculate the fixed frequency response compensation value, which greatly improves the calculation efficiency of the received power of the reference signal.

Description

[Technical field]

[0001] The present application relates to the field of reference signal received power calculation, and in particular, to a method, device, electronic device and computer-readable storage medium for reference signal received power calculation. [Background technology]

[0002] In mobile communication systems, in order to ensure the service quality of mobile users and enable mobile users to obtain a good user experience, reselection and switching between cells must be completed quickly and accurately. If the terminal measurement accuracy is too low, it will affect the user's mobility experience and hinder the system's wireless resource management, causing system performance to deteriorate. If the calculation accuracy of the Reference Signal Receiving Power (RSRP) is too low, it will affect the transmission quality of the entire system.

[0003] Due to the influence of the internal filters of the RF front-end and RF chip transceiver, the frequency response at the signal sideband will be lower than the frequency response of the middle channel. If the synchronization signal is located at the sideband, the RSRP estimated by the synchronization signal will be smaller than the actual signal strength. In order to improve the accuracy of RSRP calculation, the existing RSRP calculation method needs to pre-scan the frequency response compensation values ​​under all signal transmission parameters to compensate the signal before calculation. Although the problem of frequency response differences under different signal transmission parameters is solved, due to the differences in front-end communication devices between different projects, the frequency responses of different projects are different. If the same set of frequency response compensation values ​​is used, different projects cannot be covered; and if a set of frequency response compensation values ​​is pre-scanned for each project, it is time-consuming, labor-intensive and difficult to maintain.

[0004] Therefore, how to improve the calculation efficiency of the reference signal received power is a technical problem that needs to be solved in the art. [Summary of the invention]

[0005] In order to solve the problem of low calculation efficiency of reference signal received power in the prior art, the present application provides a method for calculating reference signal received power.

[0006] A method for calculating reference signal received power, comprising:

[0007] Acquire signal transmission parameters of the signal transmission device, and determine a fixed frequency response compensation value corresponding to the signal transmission parameter; the fixed frequency response compensation value is a frequency response compensation value of the radio frequency chip;

[0008] Acquire first device information of the communication device to be tested, and determine a front-end frequency response compensation value of the communication device to be tested according to the first device information; the front-end frequency response compensation value is a frequency response compensation value of a radio frequency front end;

[0009] A first received signal of the communication device under test is obtained, the first received signal is compensated according to the fixed frequency response compensation value and the front-end frequency response compensation value, and a reference signal received power of the communication device under test is calculated according to the compensated first received signal.

[0010] Preferably, before obtaining the signal transmission parameters of the signal transmission device and determining the fixed frequency response compensation value corresponding to the signal transmission parameters, the method further includes:

[0011] Acquire at least one preset signal transmission parameter, and for each of the at least one preset signal transmission parameter, send a signal test instruction containing the signal transmission parameter to the signal transmission device, wherein the signal test instruction is used to instruct the signal transmission device to transmit a test signal using the signal transmission parameter;

[0012] Acquire second device information of the preset communication device, and determine a front-end frequency response compensation value of the preset communication device according to the second device information;

[0013] Acquire a second received signal of the preset communication device, and calculate a total frequency response compensation value corresponding to the signal transmission parameter according to the second received signal, wherein the second received signal is a received signal obtained by the preset communication device receiving the test signal;

[0014] The fixed frequency response compensation value corresponding to the signal transmission parameter is determined according to the total frequency response compensation value corresponding to the signal transmission parameter and the front-end frequency response compensation value of the preset communication device.

[0015] Preferably, the calculating, according to the second received signal, a total frequency response compensation value corresponding to the signal transmission parameter includes:

[0016] determining a first signal strength value of the second received signal according to the second received signal;

[0017] Sending a signal transmission instruction of a single-tone test signal to the signal transmitting device; the signal transmission instruction of the single-tone test signal is used to instruct the signal transmitting device to transmit a single-tone signal of a preset frequency under the signal transmission parameters;

[0018] Acquire a third received signal of the preset communication device, and determine a second signal strength value of the third received signal according to the third received signal, wherein the third received signal is a received signal obtained by the preset communication device receiving the single tone signal;

[0019] The difference between the first signal strength value and the second signal strength value is calculated to obtain a total frequency response compensation value corresponding to the signal transmission parameter.

[0020] Preferably, the method further comprises:

[0021] A modification instruction is obtained and sent to the signal transmitting device, wherein the modification instruction is used to modify the preset frequency of the single tone signal.

[0022] Preferably, after determining the fixed frequency response compensation value corresponding to the signal transmission parameter, the method further includes:

[0023] Saving the corresponding relationship between each preset signal transmission parameter and the corresponding fixed frequency response compensation value;

[0024] The determining of the fixed frequency response compensation value corresponding to the signal transmission parameter includes:

[0025] The corresponding relationship is acquired, and a fixed frequency response compensation value corresponding to the signal transmission parameter is determined according to the signal transmission parameter and the corresponding relationship.

[0026] Preferably, the signal transmission parameters include at least one of a signal gain control word, a signal transmission channel, a signal transmission frequency band, a synchronization signal position, a signal transmission bandwidth, and a signal transmission downlink path.

[0027] Preferably, the device information includes a calibration gain table;

[0028] The determining the front-end frequency response compensation value of the communication device to be tested according to the device information includes:

[0029] Determining the gain of the communication device under test in each channel according to the calibration gain table;

[0030] A preset gain is obtained, a difference between the gain of each channel and the preset gain is calculated, and the difference between the gain of each channel and the preset gain is determined as a front-end frequency response compensation value of the communication device to be tested.

[0031] A device for calculating reference signal received power, comprising:

[0032] A first acquisition module is used to acquire a signal transmission parameter of a signal transmission device, and determine a fixed frequency response compensation value corresponding to the signal transmission parameter; the fixed frequency response compensation value is a frequency response compensation value of a radio frequency chip;

[0033] A second acquisition module is used to acquire first device information of the communication device to be tested, and determine a front-end frequency response compensation value of the communication device to be tested according to the first device information; the front-end frequency response compensation value is a frequency response compensation value of a radio frequency front end;

[0034] The third acquisition module is used to acquire a first received signal of the communication device under test, compensate the first received signal according to the fixed frequency response compensation value and the front-end frequency response compensation value, and calculate the reference signal received power of the communication device under test according to the compensated first received signal.

[0035] An electronic device, comprising:

[0036] A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for calculating the reference signal received power as described above is implemented.

[0037] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the method for calculating the reference signal received power as described above.

[0038] The method for calculating the reference signal received power provided in the embodiment of the present application predetermines a fixed frequency response compensation value corresponding to the signal transmission parameters of the signal transmitting device, and the fixed frequency response compensation value is the frequency response compensation value of the RF chip. Since the filters inside the RF chip transceivers of different communication devices have high consistency, the fixed frequency response compensation value does not change according to the change of the front-end device, but only changes according to the change of the signal transmission parameters. Therefore, when facing the situation where different projects lead to different frequency responses, there is no need to recalculate the fixed frequency response compensation value under all signal transmission parameters. It is only necessary to compensate the received signal according to the front-end frequency response compensation value of the communication device to be tested and the fixed frequency response compensation value corresponding to the current signal transmission parameters, and finally calculate the reference signal received power of the communication device to be tested according to the compensated received signal, which greatly improves the calculation efficiency of the reference signal received power.

Brief Description of the Drawings

[0039] 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. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0040] Figure 1 A frequency response curve diagram of four downlink paths in the N41 frequency band provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of a reference signal received power calculation system provided in an embodiment of the present application;

[0042] Figure 3 A flowchart of a method for calculating reference signal received power provided in an embodiment of the present application;

[0043] Figure 4 A schematic diagram of splitting a frequency response compensation value provided in an embodiment of the present application;

[0044] Figure 5 A flowchart of another method for calculating reference signal received power provided in an embodiment of the present application;

[0045] Figure 6 The frequency response curve diagram of the internal filter of different radio frequency chip transceivers provided in the embodiments of the present application;

[0046] Figure 7 A schematic diagram of the structure of a device for calculating reference signal received power provided in an embodiment of the present application. [Specific implementation method]

[0047] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0048] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0049] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0050] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0051] For ease of understanding, the following terms are introduced in this application:

[0052] 1) Frequency response: Frequency response is used in electronics to describe the difference in an instrument's ability to process signals of different frequencies. The frequency response curve refers to the curve of gain changing with frequency. The ideal frequency response curve should be flat, and no distortion should be generated after the signal passes through.

[0053] 2) 5GNR: The fifth generation mobile communication technology (5G) new radio (NR) is a global 5G standard with a new air interface design based on orthogonal frequency division multiplexing (OFDM) technology.

[0054] 3) Reference signal received power: The reference signal received power is the average value of the signal power received on all resource elements carrying the reference signal in a symbol, that is, the subcarrier power. For mobile communication networks, the bandwidth of an OFDM subcarrier is fixed, that is, as long as the carrier bandwidth is determined, the number of subcarriers can be determined, and then the RSRP power can be calculated.

[0055] See also Figure 1 , which is a frequency response curve diagram of four downlink paths in the N41 frequency band provided in an embodiment of the present application.

[0056] Due to the physical characteristics of frequency response, the frequency response at the signal sideband will be lower than the amplitude of the middle channel. Since the NR synchronization signal (Synchronization Signal Block, SSB) position is not fixed, if the SSB position is at the sideband, then the RSRP estimated by SSB will be smaller than the actual signal strength. Here, taking the NR cell of 100MHz as an example, the NR downlink needs to support 100M signal bandwidth. There are 273 resource block (RB) signals in the 100M signal. For SSB with a subcarrier bandwidth of 30KHz, there are 20 RB signals, that is, the SSB signal has a total bandwidth of 7.2MHz, and the 7.2MHz bandwidth measurement result may not accurately reflect the overall situation of the 100MHz bandwidth.

[0057] Therefore, in order to improve the accuracy of RSRP calculation, the existing RSRP calculation method needs to use the frequency response compensation value to compensate the signal before calculation. Figure 1It can be seen that the frequency response is different under different signal transmission parameters. Therefore, in order to facilitate RSRP calculation, the existing solution is to pre-scan the frequency response values ​​under all signal transmission parameters, and then determine the corresponding frequency response compensation value, and then use the compensation value to compensate the signal before calculating RSRP. Although the problem of frequency response differences under different signal transmission parameters is solved, due to the differences in front-end communication devices between different projects, the frequency responses of different projects are different. If the same set of frequency response compensation values ​​is used, different projects cannot be covered; and if a set of frequency response compensation values ​​is pre-scanned for each project, it is time-consuming, labor-intensive and difficult to maintain. Therefore, the present application provides a method for calculating the received power of a reference signal to solve the above problems.

[0058] For ease of understanding, the items mentioned here can be understood as the models of the communication devices to be tested, wherein the same items refer to the communication devices to be tested having the same brand and model, and different items refer to the communication devices to be tested having different brands or the same brand but different models.

[0059] Embodiment 1

[0060] Please refer to Figure 2 , is a schematic diagram of a reference signal received power calculation system provided in an embodiment of the present application, the system comprising a signal transmitting device 10, a communication device to be tested 20 and a reference signal received power calculation device 30, wherein:

[0061] The signal transmitting device 10 is used to transmit a corresponding signal according to the signal transmitting parameter, so that the communication device 20 to be tested receives the corresponding receiving signal;

[0062] The communication device 20 to be tested is used to receive the signal transmitted by the signal transmitting device 10;

[0063] The reference signal received power calculation device 30 is used to obtain the signal transmission parameters of the signal transmission device 10, and determine the fixed frequency response compensation value corresponding to the signal transmission parameters; obtain the first device information of the communication device 20 to be tested, and determine the front-end frequency response compensation value of the communication device 20 to be tested according to the first device information; obtain the first received signal of the communication device 20 to be tested, compensate the first received signal according to the fixed frequency response compensation value and the front-end frequency response compensation value, and calculate the reference signal received power of the communication device 20 to be tested according to the compensated first received signal.

[0064] In a specific embodiment, before obtaining the current signal transmission parameters of the signal transmitting device 10, the reference signal received power calculation device 30 may also send a signal transmission instruction including the specified signal transmission parameters to the signal transmitting device 10, and the signal transmitting device 10 transmits the corresponding signal according to the specified signal transmission parameters;

[0065] In a specific embodiment, before acquiring the signal transmission parameters of the signal transmitting device 10, the reference signal received power calculation device 30 may also send a signal transmission instruction including all signal transmission parameters and a signal transmission strategy to the signal transmitting device 10, so that the signal transmitting device 10 can select the corresponding signal transmission parameters according to the signal transmission strategy, and transmit the corresponding signal according to the selected signal transmission parameters;

[0066] In a specific embodiment, the signal transmitting device may be at least one of a sinusoidal signal generator, a low-frequency signal generator, a high-frequency signal generator, a microwave signal generator, a frequency synthesis signal generator, a function signal generator, a pulse signal generator, and a random signal generator;

[0067] It should be noted that the present application does not specifically limit the type of the signal transmitting device 10 .

[0068] Embodiment 2

[0069] Please refer to Figure 3 , is a flowchart of a method for calculating reference signal received power provided in an embodiment of the present application, the method is applied to Figure 2 The reference signal received power calculation device 30 of the reference signal received power calculation system shown includes the following steps:

[0070] Step S01, obtaining signal transmission parameters of a signal transmitting device, and determining a fixed frequency response compensation value corresponding to the signal transmission parameters.

[0071] Please refer to Figure 4 , is a schematic diagram of a frequency response compensation value splitting provided by an embodiment of the present application. The present application analyzes the reasons for the frequency response differences between different projects under the same signal transmission parameters, and determines that the reason for the frequency response differences is the different radio frequencies of the front-end communication devices between different projects. The radio frequency is composed of an RF front end and an RF chip. Since the filters inside the RF chip transceivers of different communication devices have high consistency, that is, the reason for the frequency response differences between different projects under the same signal transmission parameters is actually due to the differences in the RF front ends. Therefore, the present application splits the frequency response compensation value into a front-end frequency response compensation value and a fixed frequency response compensation value, where:

[0072] The front-end frequency response compensation value refers to the frequency response compensation value corresponding to the frequency response difference caused by the difference in RF front-end devices, which is determined by the inherent properties of each front-end communication device;

[0073] The fixed frequency response compensation value is the frequency response compensation value of the RF chip. Since the filters inside the RF chip transceivers of different communication devices have high consistency, the fixed frequency response compensation value will not change due to the difference in the front-end communication devices, but only changes according to the change of signal transmission parameters.

[0074] That is to say, the different frequency response compensation values ​​between different projects can be understood as the front-end frequency response compensation values ​​of the front-end communication devices of different projects are different. Therefore, it is only necessary to determine the front-end frequency response compensation value of a certain project and the fixed frequency response compensation value corresponding to a certain transmission condition, so as to determine the frequency response compensation value of the project under the signal transmission parameters, and then use the frequency response compensation value to compensate the received signal, and finally calculate the reference signal received power.

[0075] Therefore, the present application obtains the current signal transmission parameters of the signal transmitting device and determines the fixed frequency response compensation value corresponding to the signal transmission parameter, and then only needs to determine the front-end frequency response compensation value of the communication device under test to compensate the received signal and calculate the reference signal receiving power.

[0076] In a specific embodiment, the reference signal received power calculation device sends a first acquisition instruction to the signal transmitting device. When the signal transmitting device receives the first acquisition instruction, it determines the signal transmission parameters used for transmitting the signal at this time, and feeds the signal transmission parameters back to the reference signal received power calculation device. The reference signal received power calculation device determines the fixed frequency response compensation value corresponding to the signal transmission parameters.

[0077] In a specific embodiment, the signal transmission parameters include at least one of a signal gain control word, a signal transmission channel, a signal transmission frequency band, a synchronization signal position, a signal transmission bandwidth, and a signal transmission downlink path.

[0078] In a specific embodiment, the fixed frequency response compensation value corresponding to the signal transmission parameter can be determined according to a preset corresponding relationship. The preset corresponding relationship can be a corresponding relationship table storing signal transmission parameters and fixed frequency response compensation values, or other forms of data structures for representing the corresponding relationship.

[0079] In a specific embodiment, the corresponding relationship may be obtained by receiving user input, by connecting to a preset server, or by downloading from a preset network disk location, and this application does not make any specific limitation on this.

[0080] Step S02: acquiring first device information of the communication device to be tested, and determining a front-end frequency response compensation value of the communication device to be tested according to the first device information.

[0081] In a specific embodiment, the reference signal received power calculation device sends a second acquisition instruction to the communication device under test. When the communication device under test receives the second acquisition instruction, the first device information of the communication device under test is fed back to the reference signal received power calculation device, so that the reference signal received power calculation device determines the front-end frequency response compensation value of the communication device under test based on the first device information.

[0082] In a specific embodiment, the correspondence between device information and front-end frequency response compensation value may be acquired in advance from a preset position, and then the front-end frequency response compensation value corresponding to the device information of the communication device to be tested is determined according to the correspondence.

[0083] In a specific embodiment, the device information is a calibration gain table of the communication device to be tested. On this basis, the front-end frequency response compensation value of the communication device to be tested is determined according to the device information, which can be specifically:

[0084] Determine the gain of the communication device under test in each channel according to the calibration gain table;

[0085] The difference between each gain and the preset gain is calculated, and the front-end frequency response compensation value of the communication device to be tested is determined according to each difference.

[0086] The calibration gain table mentioned here is the calibration gain table generated when the communication device is calibrated for automatic gain control (AGC) at the factory. The generated calibration gain table will be stored in the communication device. The purpose of AGC calibration is to ensure that the signal strength before entering the demodulation circuit is basically the same regardless of the signal size at the location of the communication device. The calibration gain table generated in the AGC calibration process can control the AGC circuit to use a specific amplification factor to amplify the received signal strength indication (RSSI) to a level that meets the demodulation threshold. Therefore, the gain of the communication device to be tested in each channel can be determined based on the calibration gain table.

[0087] The preset gain mentioned here can specifically be the maximum value of the gain of the communication device under test in each channel. Therefore, the present application can determine the gain of the communication device under test in each channel according to the obtained calibration gain table, and the difference between each calculated gain and the preset gain is the frequency response difference value of each channel relative to the optimal channel, thereby determining that the front-end frequency response compensation value used for frequency response compensation is the same as the frequency response difference value.

[0088] Step S03, obtaining a first received signal of the communication device under test, compensating the first received signal according to the fixed frequency response compensation value and the front-end frequency response compensation value, and calculating a reference signal received power of the communication device under test according to the compensated first received signal.

[0089] In a specific embodiment, the reference signal received power calculation device sends a third acquisition instruction to the communication device under test. When the communication device under test receives the third acquisition instruction, it feeds back the first received signal of the communication device under test to the reference signal received power calculation device. The first received signal is the received signal obtained by the communication device under test receiving the signal transmitted by the signal transmitting device under the signal transmission parameter. The reference signal received power calculation device compensates the first received signal according to the fixed frequency response compensation value and the front-end frequency response compensation value, and calculates the reference signal received power of the communication device under test according to the compensated first received signal.

[0090] In a specific embodiment, the fixed frequency response compensation value and the front-end frequency response compensation value may be summed to obtain a total frequency response compensation value, and then the received signal may be compensated according to the total frequency response compensation value.

[0091] In a specific embodiment, the received signal may also be compensated in sequence using the fixed frequency response compensation value and the front-end frequency response compensation value. The present application does not specifically limit the order of the two compensations.

[0092] The method for calculating the reference signal received power provided in the embodiment of the present application predetermines a fixed frequency response compensation value corresponding to the current signal transmission parameters, and the fixed frequency response compensation value is the frequency response compensation value of the RF chip. Since the filters inside the RF chip transceivers of different communication devices have high consistency, the fixed frequency response compensation value only changes according to the changes in the signal transmission parameters. Therefore, when facing different frequency responses caused by different projects, there is no need to recalculate the fixed frequency response compensation value under all signal transmission parameters. It is only necessary to compensate the received signal according to the front-end frequency response compensation value of the communication device to be tested and the fixed frequency response compensation value corresponding to the current signal transmission parameters, and finally calculate the reference signal received power of the communication device to be tested according to the compensated received signal, which greatly improves the calculation efficiency of the reference signal received power.

[0093] Embodiment 3

[0094] Please refer to Figure 5 , is a flowchart of another method for calculating the received power of a reference signal provided in an embodiment of the present application, the method is applied to Figure 2 In the reference signal received power calculation device 30 of the reference signal received power calculation system shown, the reference signal received power calculation system may further include a preset communication device.

[0095] The method comprises the following steps:

[0096] Step S11, obtaining at least one preset signal transmission parameter, and for each signal transmission parameter of the at least one preset signal transmission parameter, sending a signal test instruction containing the signal transmission parameter to the signal transmission device.

[0097] In a specific embodiment, the acquisition of at least one preset signal transmission parameter mentioned here may specifically be the acquisition of all signal transmission parameters, and all signal transmission parameters mentioned here are all signal transmission parameters corresponding to all transmission situations of the signal transmission device. It should be noted that different signal transmission parameters include different types of signal transmission parameters and / or different values ​​of the signal transmission parameters.

[0098] In a specific embodiment, the signal transmission parameter may be obtained by receiving user input, by connecting to a preset server, or by downloading from a preset network disk location, which is not specifically limited in the present application.

[0099] The signal test instruction mentioned here is used to instruct the signal transmitting device to transmit a test signal using the signal transmission parameters. In a specific embodiment, when the signal transmitting device receives the signal test instruction, it first determines the signal transmission parameters corresponding to the signal test instruction, and then transmits the corresponding test signal based on the signal transmission parameters so that the preset communication device can receive the test signal.

[0100] Step S12, obtaining second device information of the preset communication device, and determining a front-end frequency response compensation value of the preset communication device according to the second device information.

[0101] In a specific embodiment, the reference signal received power calculation device sends a fourth acquisition instruction to the preset communication device. When the preset communication device receives the fourth acquisition instruction, the second device information of the preset communication device is fed back to the reference signal received power calculation device, so that the reference signal received power calculation device determines the front-end frequency response compensation value of the preset communication device based on the second device information.

[0102] Step S13, obtaining a second received signal of the preset communication device, and calculating a total frequency response compensation value corresponding to the signal transmission parameter according to the second received signal.

[0103] In a specific embodiment, the reference signal received power calculation device sends a fifth acquisition instruction to the communication device under test. When the preset communication device receives the fifth acquisition instruction, it feeds back the second received signal of the communication device under test to the reference signal received power calculation device. The second received signal is the received signal obtained by the preset communication device receiving the test signal transmitted by the signal transmitting device under the signal transmission parameter. The reference signal received power calculation device calculates the total frequency response compensation value corresponding to the signal transmission parameter based on the second received signal.

[0104] Step S14, determining a fixed frequency response compensation value corresponding to the signal transmission parameter according to the total frequency response compensation value corresponding to the signal transmission parameter and the front-end frequency response compensation value of the preset communication device.

[0105] It can be seen from the content of the second embodiment that the total frequency response compensation value is composed of the front-end frequency response compensation value and the fixed frequency response compensation value. In this embodiment, after the total frequency response compensation value and the front-end frequency response compensation value are determined, it can be determined that the fixed frequency response compensation value corresponding to the signal transmission parameter is the difference between the total frequency response compensation value and the front-end frequency response compensation value.

[0106] The purpose of the embodiment of the present application is to determine the fixed frequency response compensation value corresponding to each signal transmission parameter. Therefore, the present application calculates the total frequency response compensation value according to the received signal in advance, and then calculates the difference between the total frequency response compensation value and the front-end frequency response compensation value. Since the total frequency response compensation value is composed of the front-end frequency response compensation value and the fixed frequency response compensation value, the obtained difference is the corresponding fixed frequency response compensation value.

[0107] In a specific embodiment, in order to improve the calculation accuracy of the total frequency response compensation value, a reference signal may be simulated by externally injecting a single tone signal for calculation, that is, the total frequency response compensation value corresponding to the signal transmission parameter is calculated based on the received signal corresponding to the signal transmission parameter mentioned in step S14, which can be specifically implemented by executing the following steps:

[0108] Step S141: Determine a first signal strength value of the second received signal according to the second received signal.

[0109] Step S142: Sending a signal transmission instruction of a single-tone test signal to the signal transmitting device.

[0110] The signal transmission instruction of the single-tone test signal mentioned here is used to instruct the signal transmitting device to transmit a single-tone signal of a preset frequency under the signal transmission parameters;

[0111] In a specific embodiment, after the reference signal receiving power calculation device sends a signal transmission instruction of a single-tone test signal to the signal transmitting device, the signal transmitting device determines the corresponding preset frequency based on the signal transmission instruction, and transmits the single-tone signal of the preset frequency under the signal transmission parameters, so that the preset communication device receives the single-tone signal.

[0112] In a specific embodiment, the reference signal receiving power calculation device can also send the received modification instruction to the signal transmitting device, and the modification instruction is used to modify the preset frequency of the single-tone signal. The modification instruction can be input by the user or issued by the system. This application does not specifically limit the source of the modification instruction.

[0113] Step S143: Acquire a third received signal of the preset communication device, and determine a second signal strength value of the third received signal according to the third received signal.

[0114] The third received signal mentioned here is a received signal obtained by a preset communication device receiving the single tone signal;

[0115] In a specific embodiment, the reference signal received power calculation device sends a sixth acquisition instruction to the communication device under test. When the preset communication device receives the sixth acquisition instruction, it feeds back the third received signal of the communication device under test to the reference signal received power calculation device, and the reference signal received power calculation device determines the second signal strength of the third received signal based on the third received signal.

[0116] Step S144: Calculate the difference between the first signal strength value and the second signal strength value to obtain a total frequency response compensation value corresponding to the signal transmission parameter.

[0117] In this step, the difference between the first signal strength value and the second signal strength value indicates the frequency response gap between the second received signal received by the preset communication device and the reference signal. Then the total frequency response compensation value required to compensate the second received signal is the frequency response gap. Therefore, the present application obtains the total frequency response compensation value corresponding to the signal transmission parameter based on the difference between the first signal strength value and the second signal strength value.

[0118] Step S01, obtaining signal transmission parameters of a signal transmitting device, and determining a fixed frequency response compensation value corresponding to the signal transmission parameters.

[0119] On the basis of the above embodiment, in a specific embodiment, after obtaining the fixed frequency response compensation value corresponding to each of the signal transmission parameters, in order to save the corresponding relationship between the signal transmission parameters and the fixed frequency response compensation value, the following steps may be further performed:

[0120] Saving the corresponding relationship between each preset signal transmission parameter and the corresponding fixed frequency response compensation value;

[0121] On this basis, the fixed frequency response compensation value corresponding to the signal transmission parameter mentioned in step S01 may be specifically determined as follows:

[0122] The corresponding relationship is acquired, and a fixed frequency response compensation value corresponding to the signal transmission parameter is determined according to the signal transmission parameter and the corresponding relationship.

[0123] Step S02: acquiring first device information of the communication device to be tested, and determining a front-end frequency response compensation value of the communication device to be tested according to the first device information.

[0124] Step S03, obtaining a first received signal of the communication device under test, compensating the first received signal according to the fixed frequency response compensation value and the front-end frequency response compensation value, and calculating a reference signal received power of the communication device under test according to the compensated first received signal.

[0125] It should be noted that the technical solutions and beneficial effects of steps S01 to S03 in this embodiment are consistent with those of steps S01 to S03 in the second embodiment, and will not be described in detail here.

[0126] Embodiment 4

[0127] The embodiment of the present application simulates the reference signal by externally injecting a single-tone signal, and the signal frequency of the single-tone signal is the downlink local oscillator frequency plus a frequency offset of 1 MHz; in order to simulate the difference between different SSB positions and calibration results, for example, 100M bandwidth, subcarrier spacing SCS=30K, the signal source sets RB=13 RE, number=20. Traverse the RB frequency offset, and calculate the difference between the signal strength and the AGC calibration gain at different SSB positions at a certain interval, and the difference is the total frequency response compensation value. Each frequency band scans high, medium and low channels, and all channels in the frequency band select compensation parameters nearby. The latitudes that need to be covered are: different gain words, different channels, different frequency bands, different SSB positions, different bandwidths, and different downlink paths.

[0128] The specific process includes:

[0129] 1) Set the signal transmitter to transmit a modulated signal with a bandwidth of 20RB and a signal strength that allows the device to operate in the linear region. Keep the signal strength constant and inject it through the antenna port;

[0130] 2) Select a frequency band, a gain word, and a channel, and obtain the corresponding RSSI value by traversing the positions of different RBs (each time with an interval of 20 RBs);

[0131] 3) Setting the signal transmitter to transmit a single-tone signal, the frequency is set to the local oscillator to the right by 1 MHz, the signal strength is kept consistent with that in step 1), and the RSSI value of the single-tone signal is obtained;

[0132] 4) Subtract the RSSI value obtained in step 1) from the RSSI value obtained in step 3) to obtain the compensation value of RSRP;

[0133] 5) Repeat steps 1) to 4) for different frequency bands, different downlink paths, different channels, and different gain words to obtain the data in the following table:

[0134]

[0135]

[0136] The data in the table are total frequency response compensation values, which can be divided into front-end frequency response compensation values ​​and fixed frequency response compensation values. The front-end frequency response compensation values ​​can be obtained by AGC calibration. The fixed frequency response compensation values ​​can be obtained by subtracting the front-end frequency response compensation values ​​from the total frequency response compensation values, such as Figure 6 As shown, it is a frequency response curve diagram of the internal filters of different RF chip transceivers provided in the embodiment of the present application. It can be seen that the internal filters of the RF chip transceiver have high consistency, and the difference between the frequency response curves of the internal filters of different RF chip transceivers can be ignored. Therefore, it is hard-coded by software after obtaining the fixed frequency response compensation value.

[0137] For different projects using RF chip transceivers, the total frequency response compensation value is obtained by adding the fixed frequency response compensation value written in the software to the front-end frequency response compensation value obtained by AGC calibration.

[0138] Compared with the algorithm in the prior art, which needs to store the total frequency response compensation value in the memory by fitting a quadratic function, resulting in a large increase in memory space overhead, the embodiment of the present application does not need to store the frequency response compensation value in the memory, but is directly hard-coded by the software, thereby avoiding the increase in memory space overhead. The embodiment of the present application can achieve a precise compensation effect, and the actual measurement results show that the error range of + / -0.5db can be met.

[0139] Embodiment 5

[0140] Please refer to Figure 7 , is a structural diagram of a device for calculating reference signal received power provided in an embodiment of the present application, the device comprising:

[0141] The first acquisition module 301 is used to acquire the signal transmission parameters of the signal transmission device and determine the fixed frequency response compensation value corresponding to the signal transmission parameters; the fixed frequency response compensation value is the frequency response compensation value of the radio frequency chip;

[0142] The second acquisition module 302 is used to acquire first device information of the communication device to be tested, and determine a front-end frequency response compensation value of the communication device to be tested according to the first device information; the front-end frequency response compensation value is a frequency response compensation value of a radio frequency front end;

[0143] The third acquisition module 303 is used to acquire a first received signal of the communication device under test, compensate the first received signal according to the fixed frequency response compensation value and the front-end frequency response compensation value, and calculate the reference signal received power of the communication device under test according to the compensated first received signal.

[0144] Based on the above embodiment, in a specific embodiment, the device may further include:

[0145] a fourth acquisition module, configured to acquire at least one preset signal transmission parameter, and for each of the at least one preset signal transmission parameter, send a signal test instruction containing the signal transmission parameter to the signal transmission device, wherein the signal test instruction is used to instruct the signal transmission device to transmit a test signal using the signal transmission parameter;

[0146] a fifth acquisition module, configured to acquire second device information of the preset communication device, and determine a front-end frequency response compensation value of the preset communication device according to the second device information;

[0147] a sixth acquisition module, configured to acquire a second received signal of the preset communication device, and calculate a total frequency response compensation value corresponding to the signal transmission parameter according to the second received signal, wherein the second received signal is a received signal obtained by the preset communication device receiving the test signal;

[0148] The first determination module is used to determine the fixed frequency response compensation value corresponding to the signal transmission parameter according to the total frequency response compensation value corresponding to the signal transmission parameter and the front-end frequency response compensation value of the preset communication device.

[0149] Based on the above embodiment, in a specific embodiment, the sixth acquisition module may include:

[0150] A first determining unit, configured to determine a first signal strength value of the second received signal according to the second received signal;

[0151] A first sending unit is used to send a signal transmission instruction of a single-tone test signal to the signal transmitting device; the signal transmission instruction of the single-tone test signal is used to instruct the signal transmitting device to transmit a single-tone signal of a preset frequency under the signal transmission parameters;

[0152] A second sending unit, configured to send a third acquisition instruction to the preset communication device, wherein the third acquisition instruction is used to acquire a single-tone reception signal received by the preset communication device under the signal transmission parameters;

[0153] A first acquisition unit is used to acquire a third received signal of the preset communication device, and determine a second signal strength value of the third received signal according to the third received signal, wherein the third received signal is a received signal obtained by the preset communication device receiving the single tone signal;

[0154] The first calculation unit is used to calculate the difference between the first signal strength value and the second signal strength value to obtain a total frequency response compensation value corresponding to the signal transmission parameter.

[0155] Based on the above embodiment, in a specific embodiment, the second calculation module may further include:

[0156] The third sending unit is used to obtain a modification instruction and send the modification instruction to the signal transmitting device, where the modification instruction is used to modify the preset frequency of the single tone signal.

[0157] Based on the above embodiment, in a specific embodiment, the device may further include:

[0158] A storage module, used to store the corresponding relationship between each preset signal transmission parameter and the corresponding fixed frequency response compensation value;

[0159] The first acquisition module 301 may include:

[0160] The second acquisition unit is used to acquire the corresponding relationship, and determine the fixed frequency response compensation value corresponding to the signal transmission parameter according to the signal transmission parameter and the corresponding relationship.

[0161] Based on the above embodiments, in a specific embodiment, the signal transmission parameters include at least one of a signal gain control word, a signal transmission channel, a signal transmission frequency band, a synchronization signal position, a signal transmission bandwidth, and a signal transmission downlink path.

[0162] Based on the above embodiment, in a specific embodiment, the device information includes a calibration gain table, and the second acquisition module 302 includes:

[0163] A second determining unit, configured to determine the gain of the communication device to be tested in each channel according to the calibration gain table;

[0164] The third acquisition unit is used to acquire a preset gain, calculate the difference between the gain of each channel and the preset gain, and determine the difference between the gain of each channel and the preset gain as the front-end frequency response compensation value of the communication device to be tested.

[0165] Embodiment 6

[0166] This embodiment provides an electronic device, including a processor and a memory, the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, it implements the above-mentioned method for calculating the reference signal received power. Its execution method and beneficial effects are similar and will not be repeated here.

[0167] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for calculating the reference signal received power described above is implemented. The execution method and beneficial effects thereof are similar and will not be described in detail here.

[0168] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for calculating reference signal received power, characterized in that: include: Acquire signal transmission parameters of the signal transmitting device, and determine a fixed frequency response compensation value corresponding to the signal transmission parameters; The fixed frequency response compensation value is the frequency response compensation value of the radio frequency chip; Acquire first device information of the communication device to be tested, and determine a front-end frequency response compensation value of the communication device to be tested according to the first device information; the front-end frequency response compensation value is a frequency response compensation value of a radio frequency front end; A first received signal of the communication device under test is obtained, the first received signal is compensated according to the fixed frequency response compensation value and the front-end frequency response compensation value, and a reference signal received power of the communication device under test is calculated according to the compensated first received signal.

2. The method according to claim 1, characterized in that Before acquiring the signal transmission parameters of the signal transmission device and determining the fixed frequency response compensation value corresponding to the signal transmission parameters, the method further includes: Acquire at least one preset signal transmission parameter, and for each of the at least one preset signal transmission parameter, send a signal test instruction containing the signal transmission parameter to the signal transmission device, wherein the signal test instruction is used to instruct the signal transmission device to transmit a test signal using the signal transmission parameter; Acquire second device information of the preset communication device, and determine a front-end frequency response compensation value of the preset communication device according to the second device information; Acquire a second received signal of the preset communication device, and calculate a total frequency response compensation value corresponding to the signal transmission parameter according to the second received signal, wherein the second received signal is a received signal obtained by the preset communication device receiving the test signal; The fixed frequency response compensation value corresponding to the signal transmission parameter is determined according to the total frequency response compensation value corresponding to the signal transmission parameter and the front-end frequency response compensation value of the preset communication device.

3. The method according to claim 2, characterized in that The calculating, according to the second received signal, a total frequency response compensation value corresponding to the signal transmission parameter includes: determining a first signal strength value of the second received signal according to the second received signal; Sending a signal transmission instruction of a single-tone test signal to the signal transmitting device; the signal transmission instruction of the single-tone test signal is used to instruct the signal transmitting device to transmit a single-tone signal of a preset frequency under the signal transmission parameters; Acquire a third received signal of the preset communication device, and determine a second signal strength value of the third received signal according to the third received signal, wherein the third received signal is a received signal obtained by the preset communication device receiving the single tone signal; The difference between the first signal strength value and the second signal strength value is calculated to obtain a total frequency response compensation value corresponding to the signal transmission parameter.

4. The method according to claim 3, characterized in that: The method further comprises: A modification instruction is obtained and sent to the signal transmitting device, wherein the modification instruction is used to modify the preset frequency of the single tone signal.

5. The method according to claim 2, characterized in that: After determining the fixed frequency response compensation value corresponding to the signal transmission parameter, the method further includes: Saving the corresponding relationship between each preset signal transmission parameter and the corresponding fixed frequency response compensation value; The determining of the fixed frequency response compensation value corresponding to the signal transmission parameter includes: The corresponding relationship is acquired, and a fixed frequency response compensation value corresponding to the signal transmission parameter is determined according to the signal transmission parameter and the corresponding relationship.

6. The method according to claim 1, characterized in that The signal transmission parameters include at least one of a signal gain control word, a signal transmission channel, a signal transmission frequency band, a synchronization signal position, a signal transmission bandwidth, and a signal transmission downlink path.

7. The method according to any one of claims 1 to 6, characterized in that: The device information includes a calibration gain table; The determining the front-end frequency response compensation value of the communication device to be tested according to the device information includes: Determining the gain of the communication device under test in each channel according to the calibration gain table; A preset gain is obtained, a difference between the gain of each channel and the preset gain is calculated, and the difference between the gain of each channel and the preset gain is determined as a front-end frequency response compensation value of the communication device to be tested.

8. A device for calculating reference signal received power, characterized in that: include: A first acquisition module, used to acquire a signal transmission parameter of a signal transmitting device, and determine a fixed frequency response compensation value corresponding to the signal transmission parameter; The fixed frequency response compensation value is the frequency response compensation value of the radio frequency chip; A second acquisition module is used to acquire first device information of the communication device to be tested, and determine a front-end frequency response compensation value of the communication device to be tested according to the first device information; the front-end frequency response compensation value is a frequency response compensation value of a radio frequency front end; The third acquisition module is used to acquire a first received signal of the communication device under test, compensate the first received signal according to the fixed frequency response compensation value and the front-end frequency response compensation value, and calculate the reference signal received power of the communication device under test according to the compensated first received signal.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for calculating the reference signal received power as described in any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for calculating the reference signal received power according to any one of claims 1 to 7 is implemented.

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