Radio frequency calibration method and device, electronic equipment and storage medium

Abstract

The invention relates to a radio frequency calibration method and device, electronic equipment and a storage medium. A target communication frequency band supported by a terminal can be determined; acquiring to-be-calibrated radio frequency parameters of a target power device in a radio frequency system of the terminal corresponding to the target communication frequency band, wherein the to-be-calibrated radio frequency parameters comprise to-be-calibrated radio frequency parameters corresponding to a plurality of channels in the target communication frequency band respectively; and performing radio frequency calibration on the to-be-calibrated radio frequency parameter corresponding to each channel to obtain a target radio frequency parameter corresponding to each channel.

Description

Technical Field

[0001] The present disclosure relates to the field of radio frequency technology, and in particular to a radio frequency calibration method, device, electronic equipment and storage medium. Background Art

[0002] Generally, mobile terminals are calibrated before leaving the factory. In order to ensure that the mobile terminals can work normally under different network standards, radio frequency calibration needs to be performed under different network standards during the testing of the mobile terminals.

[0003] In the related art, a radio frequency calibration device is mainly provided to continuously measure the terminal until the mobile terminal completes the calibration process. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a radio frequency calibration method, device, electronic device and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a radio frequency calibration method is provided, including:

[0006] Determine the target communication frequency band supported by the terminal;

[0007] Acquire radio frequency parameters to be calibrated of a target radio frequency device in a radio frequency system of the terminal corresponding to the target communication frequency band, wherein the radio frequency parameters to be calibrated include radio frequency parameters to be calibrated corresponding to a plurality of channels in the target communication frequency band respectively;

[0008] After performing radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, target radio frequency parameters corresponding to each channel are obtained.

[0009] Optionally, the target radio frequency device includes a plurality of preset gains, and the acquiring of the radio frequency parameters to be calibrated of the target radio frequency device in the radio frequency system of the terminal corresponding to the target communication frequency band includes:

[0010] According to the target communication frequency band, the RF parameters to be calibrated corresponding to each preset gain of the target RF device are obtained from a preset database, where the RF parameters to be calibrated are RF operating parameters of the target RF device obtained by pre-calibration.

[0011] Optionally, the radio frequency parameters to be calibrated are pre-calibrated in the following manner:

[0012] For each of the preset gains, the radio frequency parameters to be calibrated of the multiple channels corresponding to each target communication frequency band under the preset gain are determined according to a preset transmission performance indicator.

[0013] Optionally, after performing radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, obtaining target radio frequency parameters corresponding to each channel includes:

[0014] Calibrate the radio frequency transmission power of the target radio frequency device according to the radio frequency parameters to be calibrated corresponding to each channel;

[0015] When the radio frequency transmission power calibration is passed, radio frequency transmission performance calibration is performed to obtain the target radio frequency parameters corresponding to each channel.

[0016] Optionally, the calibrating the radio frequency transmission power of the target radio frequency device according to the radio frequency parameters to be calibrated corresponding to each channel includes:

[0017] According to the RF parameters to be calibrated corresponding to each channel, feedback reception FBRX calibration is performed on the target RF device to obtain a power correspondence corresponding to each channel, where the power correspondence is a correspondence between the transmit power of the target RF device and the coupling power of the target RF device coupled to the transceiver;

[0018] After adjusting the radio frequency parameters to be calibrated, it is determined whether the adjusted radio frequency parameters to be calibrated pass the radio frequency transmit power calibration according to the power correspondence and the expected output power.

[0019] Optionally, the determining, according to the power correspondence and the expected output power, whether the adjusted radio frequency parameter to be calibrated passes the radio frequency transmit power calibration includes:

[0020] After adjusting the radio frequency parameter to be calibrated, obtaining the coupling power corresponding to adjusting the radio frequency parameter to be calibrated;

[0021] Determining, according to the coupling power and the power correspondence relationship, an actual transmit power corresponding to the adjusted radio frequency parameter to be calibrated;

[0022] In a case where it is determined that the actual transmit power is within a power range corresponding to the expected transmit power, it is determined that the adjusted radio frequency parameter to be calibrated passes the radio frequency transmit power calibration.

[0023] Optionally, when the radio frequency transmit power calibration is passed, performing radio frequency transmit performance calibration to obtain the target radio frequency parameters corresponding to each channel includes:

[0024] For each channel, when it is determined that the adjusted radio frequency parameters to be calibrated corresponding to the channel meet the preset transmission performance index, the adjusted radio frequency parameters to be calibrated corresponding to the channel are used as the target radio frequency parameters corresponding to the channel.

[0025] Optionally, the method further comprises:

[0026] A calibration configuration file is generated, in which different preset gains of the target RF device and corresponding RF transmission parameters are stored, and the RF transmission parameters include the target RF parameters corresponding to different channels of each target communication frequency band.

[0027] Optionally, after performing radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, obtaining target radio frequency parameters corresponding to each channel includes:

[0028] When the radio frequency calibration of the radio frequency parameters to be calibrated corresponding to the target communication frequency band fails, radio frequency calibration is performed on the radio frequency parameters to be calibrated corresponding to each channel in the target communication frequency band to obtain the target radio frequency parameters corresponding to each channel.

[0029] Optionally, the target RF parameters include supply voltage, bias voltage and input power adjustment parameters corresponding to different preset gains of the target RF device.

[0030] According to a second aspect of an embodiment of the present disclosure, a radio frequency calibration device is provided, including:

[0031] A determination module, configured to determine a target communication frequency band supported by the terminal;

[0032] An acquisition module is configured to acquire radio frequency parameters to be calibrated of a target radio frequency device in a radio frequency system of the terminal corresponding to the target communication frequency band, wherein the radio frequency parameters to be calibrated include radio frequency parameters to be calibrated corresponding to a plurality of channels in the target communication frequency band respectively;

[0033] The calibration module is configured to perform radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel to obtain target radio frequency parameters corresponding to each channel.

[0034] According to a third aspect of an embodiment of the present disclosure, there is provided an electronic device, including:

[0035] processor;

[0036] a memory for storing processor-executable instructions;

[0037] Wherein, the processor is configured to execute the steps of the method described in the first aspect of the present disclosure.

[0038] According to a fourth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored. When the program instructions are executed by a processor, the steps of the radio frequency calibration method provided in the first aspect of the present disclosure are implemented.

[0039] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: by obtaining the RF parameters to be calibrated corresponding to multiple channels in the target communication frequency band; after performing RF calibration on the RF parameters to be calibrated corresponding to each channel, the target RF parameters corresponding to each channel are obtained, so that the RF transmission performance of the terminal can be optimized step by step based on the channel, especially for frequency bands with wider bandwidths, each channel can call the optimal RF power amplifier parameters, thereby improving the hardware RF transmission performance of the terminal.

[0040] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0042] Figure 1 The figure is a flow chart of a radio frequency calibration method according to an exemplary embodiment.

[0043] Figure 2 The figure is a flow chart of a radio frequency calibration method according to an exemplary embodiment.

[0044] Figure 3 is based on Figure 1 The illustrated embodiment shows a flow chart of another radio frequency calibration method.

[0045] Figure 4 The invention is a block diagram of a radio frequency calibration device according to an exemplary embodiment.

[0046] Figure 5 is based on Figure 4 The illustrated embodiment shows a block diagram of a radio frequency calibration device.

[0047] Figure 6 It is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0049] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0050] The present disclosure is mainly applied to the scenario of radio frequency calibration of electronic equipment with radio frequency function before leaving the factory. In the related technology, radio frequency calibration of electronic equipment is mainly achieved by improving the calibration equipment and optimizing different calibration principles, and the calibration is performed in units of a certain communication frequency band, that is, after radio frequency calibration, the radio frequency parameters corresponding to each communication frequency band can be obtained, and multiple channels in the same frequency band call the same radio frequency parameters.

[0051] However, the bandwidths of different frequency bands may be different, especially for frequency bands with wider bandwidths. The performance of power amplifiers corresponding to different channels in the same frequency band may be different. If each channel corresponding to the frequency band uses the same RF transmission parameters, the RF transmission performance of electronic equipment in this frequency band needs to be improved.

[0052] In order to solve the above problems, the present disclosure provides a radio frequency calibration method, device, electronic device and storage medium. The specific implementation of the present disclosure is described in detail below with reference to the accompanying drawings.

[0053] Figure 1 is a flow chart of a radio frequency calibration method according to an exemplary embodiment. Figure 1 As shown, the method comprises the following steps:

[0054] In step S101, a target communication frequency band supported by the terminal is determined.

[0055] The terminal here is an electronic device with radio frequency function that needs to be calibrated. The target communication frequency band may include each communication frequency band in multiple communication frequency bands corresponding to each network standard under multiple network standards supported by the terminal, for example, the N77 frequency band of the 5G network (frequency range 3300MHZ-4200MHZ).

[0056] In step S102, the RF parameters to be calibrated of the target power device in the RF system of the terminal corresponding to the target communication frequency band are obtained, and the RF parameters to be calibrated include the RF parameters to be calibrated corresponding to multiple channels in the target communication frequency band.

[0057] The target power device may include any RF device in the RF system of the terminal that needs to be calibrated for RF parameters, for example, the target power device may be a PA (Power Amplifier). The RF parameters to be calibrated may include RF transmission parameters of the target power device, such as the bias voltage BIAS and the power supply voltage VCC of the power amplifier.

[0058] For example, taking the power amplifier PA as an example, assuming that the target communication frequency band is the N77 frequency band of the 5G network, the frequency range of this frequency band is 3300MHZ-4200MHZ, and in one implementation, a channel is spaced 100MHZ apart, and this frequency band may include 9 channels. Since the performance of the power amplifier corresponding to different channels may be different, in the present disclosure, by optimizing the parameters of the RF power amplifier, and optimizing for different channels, the BIAS and VCC of the power amplifier called by different channels are different, so that each channel can call the optimal RF power amplifier parameters, thereby improving the hardware RF transmission performance of the PA.

[0059] In one implementation, the radio frequency parameters to be calibrated may be pre-calibrated in the following manner:

[0060] For each of the preset gains, the radio frequency parameters to be calibrated of the multiple channels corresponding to each target communication frequency band under the preset gain are determined according to a preset transmission performance indicator.

[0061] In an actual calibration scenario, the above-mentioned radio frequency parameters to be calibrated can be obtained by pre-calibrating the EVB (Evaluated Board) version of the target radio frequency device.

[0062] Assuming that the target RF device is a power amplifier, the power amplifier may include three preset gains of high, medium and low. In the process of pre-calibrating the power amplifier through the EVB board to obtain the RF parameters to be calibrated corresponding to the power amplifier, each of the three preset gains of high, medium and low can be calibrated separately to obtain the RF parameters to be calibrated corresponding to the preset gain.

[0063] For example, for each preset gain, the RF parameters to be calibrated corresponding to each channel of the target communication frequency band can be obtained by pre-calibrating the EVB version of the target RF device. Taking the target RF device as a power amplifier as an example, the power amplifier of the same model on the hardware mainboard (including the RF transmitting and receiving part) of the terminal to be calibrated can be tested through the EVB version. The EVB board of the power amplifier can automatically scan each of the multiple frequency points in the target communication frequency band (the frequency points correspond to the channels one by one) in turn, and for each channel, the BIAS and VCC corresponding to the channel are adjusted in order from low to high or from high to low, and in the process of adjustment, when the preset transmission performance index of the test is optimal, the corresponding BIAS and VCC are used as the calibrated RF parameters to be calibrated corresponding to the channel. Among them, the preset transmission performance index can include gain, ACLR (Adjacent Channel Leakage Ratio, adjacent channel leakage ratio), current, EVM (Error Vector Magnitude, error vector amplitude), harmonics, isolation and other parameters.

[0064] In addition, in the process of obtaining the RF parameters to be calibrated by pre-calibrating the EVB version of the power amplifier, the RF parameters can also be calibrated in units of communication frequency bands, so that the RF parameters to be calibrated obtained by calibrating in units of communication frequency bands and the RF parameters to be calibrated obtained by calibrating in units of channels can be stored separately, and both can be stored in the form of LUT (Look Up Table, configuration query table), for example, LUT-1 stores the RF parameters to be calibrated at the frequency band level, and LUT-2 stores the RF parameters to be calibrated at the channel level. Both LUT-1 and LUT-2 are stored in the preset database.

[0065] For example, based on the EVB board of PA, for different communication frequency bands, the optimal VCC and BIAS values ​​in different gain modes can be tested respectively, and the test results can be stored in LUT-1. Based on the EVB board of PA, for each communication frequency band in multiple communication frequency bands, the optimal VCC and BIAS values ​​corresponding to each channel in the communication frequency band can be tested respectively, and the test results can be stored in LUT-2.

[0066] Thus, in this step, the RF parameters to be calibrated corresponding to each preset gain of the target RF device can be obtained from the preset database according to the target communication frequency band, and the RF parameters to be calibrated are the RF operating parameters of the target RF device obtained by pre-calibration. For example, for each preset gain of the PA, the RF parameters to be calibrated corresponding to multiple channels in the target communication frequency band under the preset gain can be obtained by looking up the table from LUT-2.

[0067] In step S103, after performing radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, target radio frequency parameters corresponding to each channel are obtained.

[0068] The target RF parameters include the power supply voltage VCC, the bias voltage BIAS and the RGI (RF Gain Index, input power adjustment parameter) corresponding to different preset gains of the target RF device, and the RGI is used to adjust the input power of the target RF device.

[0069] By adopting the above method, the RF parameters to be calibrated corresponding to multiple channels in the target communication frequency band are obtained; after the RF parameters to be calibrated corresponding to each channel are calibrated, the target RF parameters corresponding to each channel are obtained. In this way, the RF transmission performance of the terminal can be optimized step by step based on the channel. In particular, for frequency bands with wider bandwidths, the optimal RF power amplifier parameters can be called for each channel, thereby improving the hardware RF transmission performance of the terminal.

[0070] In a possible implementation of the present disclosure, step S103 may be performed in the following manner: when the RF calibration of the RF parameters to be calibrated corresponding to the target communication frequency band fails, RF calibration is performed on the RF parameters to be calibrated corresponding to each channel in the target communication frequency band to obtain the target RF parameters corresponding to each channel.

[0071] That is to say, RF calibration can be first performed on each target communication frequency band in units of frequency bands. If the RF calibration of the RF parameters to be calibrated corresponding to the target communication frequency band fails, a secondary calibration can be performed on the RF parameters to be calibrated corresponding to each channel in the target communication frequency band.

[0072] In addition, before executing step S103, the RF part of the terminal hardware mainboard can also be passively debugged so that the load impedance corresponding to the target RF device (such as a power amplifier) ​​can be adjusted to the optimal load impedance (such as 50Ω) when the performance is optimal based on the judgment result of whether the gain, ACLR, current and other performance are optimal.

[0073] After passive debugging, RF calibration can be performed based on the RF parameters to be calibrated of the target RF device in the RF system of the terminal corresponding to the target communication frequency band obtained in step S102. Generally, RF calibration mainly refers to the calibration of RF parameters, such as AFC (Auto Frequency Control, automatic frequency control), AGC (Auto gain control, automatic gain control) and APC (Auto power control, automatic power control). The present disclosure mainly involves the calibration of APC, and its purpose is to make the transmit power of the calibrated terminal meet the protocol specification requirements in each preset frequency band and each power level.

[0074] Figure 2 is a flow chart of a radio frequency calibration method according to an exemplary embodiment. Figure 2 As shown, step S103 includes the following sub-steps:

[0075] In step S1031, the radio frequency transmission power of the target radio frequency device is calibrated according to the radio frequency parameters to be calibrated corresponding to each channel.

[0076] The RF calibration process of the present invention is described below by taking the LUT-1 table, in which the RF parameters to be calibrated of multiple frequency bands corresponding to each preset gain of the power amplifier are recorded in units of frequency bands, and the LUT-2 table, in which the RF parameters to be calibrated of each channel in multiple frequency bands corresponding to each preset gain of the power amplifier are recorded in units of channels, as an example.

[0077] First, for each preset gain of the PA, when performing RF calibration, the VCC and BIAS of the PA under different BANDs in the LUT-1 table can be called, and the FBRX (Feedback Receiver) calibration can be performed for the VCC and BIAS under each BAND, so as to measure the power of the PA coupled to the transceiver through the power detection path. During the FBRX calibration process, the transmit power of the target RF device can be measured by the comprehensive measurement instrument, and the power of the PA coupled to the transceiver (i.e., the gain of the coupling path) can be measured through the FBRX of the terminal, so as to establish a corresponding relationship between the transmit power of the target RF device and the coupling power of the target RF device coupled to the transceiver. After that, the RF parameters to be calibrated obtained from the LUT-1 table can be adjusted, and during the adjustment process, it is determined whether the adjusted RF parameters to be calibrated pass the RF transmit power calibration based on the power correspondence and the expected output power.

[0078] In one implementation method, after adjusting the RF parameters to be calibrated, the coupling power corresponding to the adjusted RF parameters to be calibrated can be obtained, and the actual transmission power corresponding to the adjusted RF parameters to be calibrated can be determined based on the corresponding relationship between the coupling power and the power; when it is determined that the actual transmission power is within the power range corresponding to the expected transmission power, it is determined that the adjusted RF parameters to be calibrated pass the RF transmission power calibration.

[0079] For example, the expected output power (usually called ExpectedTxPwr) is 16dBm, but the measured output power of the PA (usually called MeasuredTxPwr) according to the power correspondence is 20dBm, which exceeds the upper limit range of + / -3dB, resulting in the failure of the RF transmit power calibration. In this case, the root cause analysis can be performed, for example, whether the VCC BIAS is correct and whether the RGI setting is reasonable. If the measured output power of the PA is within the range of 13dBm-19dBm (i.e., the power range corresponding to the expected transmit power) according to the power correspondence, it can be determined that the BAND passes the RF transmit power calibration.

[0080] After determining that the BAND passes the RF transmission power calibration, the present disclosure may perform RF transmission performance calibration on the RF parameters corresponding to each BAND in the following manner:

[0081] For each BAND, when it is determined that the adjusted radio frequency parameters to be calibrated corresponding to the BAND meet the preset transmission performance index, the adjusted radio frequency parameters to be calibrated corresponding to the BAND are used as the target radio frequency parameters corresponding to the BAND.

[0082] When it is determined that the adjusted RF parameters to be calibrated corresponding to the BAND do not meet the preset transmission performance indicators, the identification information of the corresponding BAND and the transmission performance indicator information corresponding to each channel included in the BAND can be output, and then the VCC and BIAS of the PA in different channels in the LUT-2 table are called based on the channel information in the BAND, and the RF transmission power calibration and RF transmission performance calibration are performed for the VCC and BIAS in each channel. That is, the RF transmission parameters corresponding to the BAND can be calibrated at the channel level by executing steps S1031 and S1032.

[0083] That is to say, the present disclosure can perform RF calibration on the RF parameters to be calibrated corresponding to each channel in the target communication frequency band when the RF calibration of the RF parameters to be calibrated corresponding to the target communication frequency band fails, so as to obtain the target RF parameters corresponding to each channel.

[0084] In the process of executing step S1031, the present disclosure can perform feedback reception FBRX calibration on the target RF device according to the RF parameters to be calibrated corresponding to each channel, and obtain the power correspondence corresponding to each channel, wherein the power correspondence is the correspondence between the transmission power of the target RF device and the coupling power of the target RF device coupled to the transceiver; after adjusting the RF parameters to be calibrated, determine whether the adjusted RF parameters to be calibrated pass the RF transmission power calibration according to the power correspondence and the expected output power. The specific implementation method of the channel-level RF parameter calibration process here can refer to the frequency band-level parameter calibration process described above, which will not be repeated here.

[0085] In step S1032, when the radio frequency transmission power calibration is passed, radio frequency transmission performance calibration is performed to obtain the target radio frequency parameters corresponding to each channel.

[0086] In this step, for each channel, when it is determined that the adjusted RF parameters to be calibrated corresponding to the channel meet preset transmission performance indicators, the adjusted RF parameters to be calibrated corresponding to the channel can be used as the target RF parameters corresponding to the channel.

[0087] For example, taking the 5G N77 band as the target communication frequency band, the 3GPP protocol requires that the ACLR corresponding to this band is less than -31dB, and usually a 5dB margin needs to be further reserved to ensure that the subsequent mass production ACLR index has a margin, that is, the N77 ACLR index needs to be less than -36dB; assuming that when testing the ACLR performance of the adjusted RF parameters to be calibrated corresponding to the 5G N77 band, the ACLR of the high channel is -35.5dB. Obviously, it does not meet the preset ACLR performance index of less than -36dB. At this time, it is determined that the 5G N77 band does not meet the preset transmission performance index, and the corresponding identification information of the frequency band and the transmission performance index information corresponding to each channel included in the frequency band can be output. For example, based on the calibration log message, it can be determined that in the N77 band, the ACLR of the high channel is 3dB worse than that of the low channel and the middle channel. At this time, it can be targeted at 5G The N77 frequency band is calibrated twice, that is, the VCC and BIAS of the PA in different channels in the LUT-2 table are called based on the channel information in the N77 frequency band, and the RF transmission power calibration and RF transmission performance calibration are performed for the VCC and BIAS in each channel. That is, the RF transmission parameters corresponding to the 5G N77 frequency band can be calibrated at the channel level by executing steps S1031 and S1032. The above example is only for illustration and is not limited in this disclosure.

[0088] Figure 3 is based on Figure 1The embodiment shown is a flowchart of another radio frequency calibration method, such as Figure 3 As shown, the method further comprises the following steps:

[0089] In step S104, a calibration configuration file is generated, in which different preset gains of the target RF device and corresponding RF transmission parameters are stored, and the RF transmission parameters include the target RF parameters corresponding to different channels of each target communication frequency band.

[0090] For some frequency bands, after calling VCC and BIAS step by step based on the channel and calibrating them, if it is determined that there is performance improvement, the channel number and the corresponding VCC and BIAS parameters are saved to the calibration configuration file and written to the mainboard simultaneously. The purpose of writing is to enable the terminal equipment to eliminate the parameter differences between different components and mainboards, optimize the transmission performance of the communication equipment in actual use, and realize automatic gain control of the communication terminal equipment on the other hand, and ensure normal communication with the base station, thereby improving the user communication experience.

[0091] After the calibration configuration file is optimized, the same model and type of RF devices in the same type of motherboard only need to be calibrated once according to the optimized calibration file, saving calibration time.

[0092] By adopting the above method, the RF parameters to be calibrated corresponding to multiple channels in the target communication frequency band are obtained; after the RF parameters to be calibrated corresponding to each channel are calibrated, the target RF parameters corresponding to each channel are obtained, so that the RF transmission performance of the terminal can be optimized step by step based on the channel, especially for the frequency band with a wide bandwidth, each channel can call the optimal RF power amplifier parameters, thereby improving the hardware RF transmission performance of the terminal. In addition, the present disclosure also proposes to introduce the LUT configuration index table of the RF device to be calibrated when calibrating the communication equipment, and add an automatic table lookup mechanism to make RF debugging more convenient and performance optimization more extreme.

[0093] Figure 4 is a block diagram of a radio frequency calibration device according to an exemplary embodiment. Figure 4 As shown, the device comprises:

[0094] The determination module 401 is configured to determine a target communication frequency band supported by the terminal;

[0095] The acquisition module 402 is configured to acquire the RF parameters to be calibrated of the target RF device in the RF system of the terminal corresponding to the target communication frequency band, wherein the RF parameters to be calibrated include the RF parameters to be calibrated corresponding to the multiple channels in the target communication frequency band;

[0096] The calibration module 403 is configured to perform radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, and obtain target radio frequency parameters corresponding to each channel.

[0097] Optionally, the target RF device corresponds to multiple preset gains, and the acquisition module 402 is configured to obtain the RF parameters to be calibrated corresponding to each preset gain of the target RF device from a preset database according to the target communication frequency band, and the RF parameters to be calibrated are the RF operating parameters of the target RF device obtained in advance.

[0098] Optionally, the radio frequency parameters to be calibrated are pre-calibrated in the following manner:

[0099] For each of the preset gains, the radio frequency parameters to be calibrated of the multiple channels corresponding to each target communication frequency band under the preset gain are determined according to a preset transmission performance indicator.

[0100] Optionally, the calibration module 403 is configured to perform RF transmission power calibration on the target RF device according to the RF parameters to be calibrated corresponding to each channel; if the RF transmission power calibration passes, perform RF transmission performance calibration to obtain the target RF parameters corresponding to each channel.

[0101] Optionally, the calibration module 403 is configured to perform feedback reception FBRX calibration on the target RF device according to the RF parameters to be calibrated corresponding to each channel, and obtain a power correspondence corresponding to each channel, wherein the power correspondence is a correspondence between the transmission power of the target RF device and the coupling power of the target RF device coupled to the transceiver; after adjusting the RF parameters to be calibrated, determine whether the adjusted RF parameters to be calibrated pass the RF transmission power calibration according to the power correspondence and the expected output power.

[0102] Optionally, the calibration module 403 is configured to obtain the coupling power corresponding to the adjusted radio frequency parameters to be calibrated after adjusting the radio frequency parameters to be calibrated; determine the actual transmission power corresponding to the adjusted radio frequency parameters to be calibrated according to the corresponding relationship between the coupling power and the power; and when it is determined that the actual transmission power is within the power range corresponding to the expected transmission power, determine that the adjusted radio frequency parameters to be calibrated pass the radio frequency transmission power calibration.

[0103] Optionally, the calibration module 403 is configured to, for each channel, use the adjusted RF parameters to be calibrated corresponding to the channel as the target RF parameters corresponding to the channel when it is determined that the adjusted RF parameters to be calibrated corresponding to the channel meet preset transmission performance indicators.

[0104] Optionally, Figure 5 is based on Figure 4 The embodiment shown is a block diagram of a radio frequency calibration device, such as Figure 5 As shown, the device also includes:

[0105] The file generation module 404 is configured to generate a calibration configuration file, in which different preset gains of the target RF device and corresponding RF transmission parameters are stored, and the RF transmission parameters include the target RF parameters corresponding to different channels of each target communication frequency band.

[0106] Optionally, the calibration module is configured to perform radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel in the target communication frequency band if radio frequency calibration of the radio frequency parameters to be calibrated corresponding to the target communication frequency band fails, so as to obtain the target radio frequency parameters corresponding to each channel.

[0107] Optionally, the target RF parameters include supply voltage, bias voltage and input power adjustment parameters corresponding to different preset gains of the target RF device.

[0108] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0109] The present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon, and the program instructions, when executed by a processor, implement the steps of the radio frequency calibration method provided by the present disclosure.

[0110] Figure 6 800 is a block diagram of an electronic device according to an exemplary embodiment. For example, the device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0111] Reference Figure 6 , the device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output interface 812 , a sensor component 814 , and a communication component 816 .

[0112] The processing component 802 generally controls the overall operation of the device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned radio frequency calibration method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0113] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0114] The power supply component 806 provides power to the various components of the device 800. The power supply component 806 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 800.

[0115] The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0116] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the device 800 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0117] The input / output interface 812 provides an interface between the processing component 802 and the peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0118] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor assembly 814 can also detect the position change of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration / deceleration of the device 800, and the temperature change of the device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0119] The communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices. The device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0120] In an exemplary embodiment, the device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described radio frequency calibration method.

[0121] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the device 800 to complete the above-mentioned radio frequency calibration method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0122] In another exemplary embodiment, a computer program product is further provided. The computer program product includes a computer program executable by a programmable device. The computer program has a code portion for executing the above radio frequency calibration method when executed by the programmable device.

[0123] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0124] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A radio frequency calibration method, characterized in that: The method comprises: Determine the target communication frequency band supported by the terminal; Acquire radio frequency parameters to be calibrated of a target radio frequency device in a radio frequency system of the terminal corresponding to the target communication frequency band, wherein the radio frequency parameters to be calibrated include radio frequency parameters to be calibrated corresponding to a plurality of channels in the target communication frequency band respectively; After performing radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, target radio frequency parameters corresponding to each channel are obtained.

2. The method according to claim 1, characterized in that The target radio frequency device corresponds to a plurality of preset gains, and the obtaining of the radio frequency parameters to be calibrated of the target radio frequency device in the radio frequency system of the terminal corresponding to the target communication frequency band includes: According to the target communication frequency band, the RF parameters to be calibrated corresponding to each preset gain of the target RF device are obtained from a preset database, where the RF parameters to be calibrated are RF operating parameters of the target RF device obtained by pre-calibration.

3. The method according to claim 2, characterized in that The radio frequency parameters to be calibrated are pre-calibrated in the following manner: For each of the preset gains, the radio frequency parameters to be calibrated of the multiple channels corresponding to each target communication frequency band under the preset gain are determined according to a preset transmission performance indicator.

4. The method according to claim 2, characterized in that: After performing radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, obtaining target radio frequency parameters corresponding to each channel includes: Calibrate the radio frequency transmission power of the target radio frequency device according to the radio frequency parameters to be calibrated corresponding to each channel; When the radio frequency transmission power calibration is passed, radio frequency transmission performance calibration is performed to obtain the target radio frequency parameters corresponding to each channel.

5. The method according to claim 4, characterized in that The calibrating the radio frequency transmission power of the target radio frequency device according to the radio frequency parameters to be calibrated corresponding to each channel includes: According to the RF parameters to be calibrated corresponding to each channel, feedback reception FBRX calibration is performed on the target RF device to obtain a power correspondence corresponding to each channel, where the power correspondence is a correspondence between the transmit power of the target RF device and the coupling power of the target RF device coupled to the transceiver; After adjusting the radio frequency parameters to be calibrated, it is determined whether the adjusted radio frequency parameters to be calibrated pass the radio frequency transmit power calibration according to the power correspondence and the expected output power.

6. The method according to claim 5, characterized in that The determining, according to the power correspondence and the expected output power, whether the adjusted radio frequency parameter to be calibrated passes the radio frequency transmit power calibration comprises: After adjusting the radio frequency parameter to be calibrated, obtaining the coupling power corresponding to adjusting the radio frequency parameter to be calibrated; Determining, according to the coupling power and the power correspondence relationship, an actual transmit power corresponding to the adjusted radio frequency parameter to be calibrated; In a case where it is determined that the actual transmit power is within a power range corresponding to the expected transmit power, it is determined that the adjusted radio frequency parameter to be calibrated passes the radio frequency transmit power calibration.

7. The method according to claim 6, characterized in that When the radio frequency transmission power calibration is passed, performing radio frequency transmission performance calibration to obtain the target radio frequency parameters corresponding to each channel includes: For each channel, when it is determined that the adjusted radio frequency parameters to be calibrated corresponding to the channel meet the preset transmission performance index, the adjusted radio frequency parameters to be calibrated corresponding to the channel are used as the target radio frequency parameters corresponding to the channel.

8. The method according to claim 1, characterized in that The method further comprises: A calibration configuration file is generated, in which different preset gains of the target RF device and corresponding RF transmission parameters are stored, and the RF transmission parameters include the target RF parameters corresponding to different channels of each target communication frequency band.

9. The method according to claim 1, characterized in that: After performing radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel, obtaining target radio frequency parameters corresponding to each channel includes: When the radio frequency calibration of the radio frequency parameters to be calibrated corresponding to the target communication frequency band fails, radio frequency calibration is performed on the radio frequency parameters to be calibrated corresponding to each channel in the target communication frequency band to obtain the target radio frequency parameters corresponding to each channel.

10. The method according to any one of claims 1 to 9, characterized in that: The target radio frequency parameters include supply voltage, bias voltage and input power adjustment parameters corresponding to different preset gains of the target radio frequency device.

11. A radio frequency calibration device, characterized in that: include: A determination module, configured to determine a target communication frequency band supported by the terminal; An acquisition module is configured to acquire radio frequency parameters to be calibrated of a target radio frequency device in a radio frequency system of the terminal corresponding to the target communication frequency band, wherein the radio frequency parameters to be calibrated include radio frequency parameters to be calibrated corresponding to a plurality of channels in the target communication frequency band respectively; The calibration module is configured to perform radio frequency calibration on the radio frequency parameters to be calibrated corresponding to each channel to obtain target radio frequency parameters corresponding to each channel.

12. An electronic device, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: execute the steps of the method described in any one of claims 1-10.

13. A computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the program instructions are executed by a processor, the steps of the method described in any one of claims 1 to 10 are implemented.

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