Stray radiation optimization method and device of radio frequency front end, medium and product

Abstract

The invention provides a stray radiation optimization method and device of a radio frequency front end, a medium and a product, and relates to a wireless communication technology. The method comprises the following steps: acquiring a working frequency band of a modem connected with a radio frequency front end; according to the working frequency band, determining an isolation port when the radio frequency front end does not generate stray radiation; and controlling to set the isolation port to be in an isolation state. According to the method and the device, the isolation port when the radio frequency front end does not generate stray radiation is determined according to the acquired working frequency band of the modem connected with the radio frequency front end, and the isolation port is controlled to be set in the isolation state, so that when the wireless communication equipment enters the working frequency band, the isolation port is actively set in the isolation state; therefore, the generation of stray radiation at the radio frequency front end is effectively prevented or suppressed, and the hysteresis quality that passive processing can be carried out only after the stray radiation is generated in the existing method is overcome.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method, device, medium and product for optimizing spurious radiation of a radio frequency front end. Background Art

[0002] With the rapid development of wireless communication technology, wireless communication devices are placing increasing demands on the performance of their RF front-ends to support multi-band, high-bandwidth, and complex functions. However, the nonlinear devices and increasingly complex circuit chains contained in the RF front-end inevitably generate harmful spurious signals such as harmonics and intermodulation when processing RF signals. These spurious signals are radiated through the antenna, resulting in radiated spurious emissions (RSE), which seriously impact the communication performance and electromagnetic compatibility of wireless communication devices.

[0003] Currently, the spurious radiation optimization method for the RF front-end is usually to set at least one port of the RF device generating the spurious radiation to an isolated state through manual intervention when wireless communication equipment is used to transmit signals. This has obvious lag. Summary of the Invention

[0004] The present application provides a method, device, medium and product for optimizing the stray radiation of a radio frequency front end, which are used to set at least one port of a radio frequency device that generates stray radiation to an isolation state in advance.

[0005] In a first aspect, the present application provides a method for optimizing spurious radiation of a radio frequency front end, comprising:

[0006] Obtain the operating frequency band of the modem connected to the RF front end;

[0007] Based on the operating frequency band, determine the isolation port where the RF front end does not generate spurious radiation;

[0008] Controls setting the isolated port to isolated state.

[0009] In one possible implementation, determining, based on the operating frequency band, an isolation port where the radio frequency front end does not generate spurious radiation includes:

[0010] If the operating frequency band is the first frequency band, determine that the port corresponding to the second frequency band is an isolation port when the RF front end does not generate spurious radiation;

[0011] If the first frequency band is a high frequency band, the second frequency band is a low frequency band; if the first frequency band is a low frequency band, the second frequency band is a high frequency band.

[0012] In one possible implementation, determining, based on the operating frequency band, an isolation port where the radio frequency front end does not generate spurious radiation includes:

[0013] Determine the target isolation required for the RF front end based on the operating frequency band;

[0014] Based on the target isolation, the isolation port corresponding to the target isolation when the RF front end does not generate spurious radiation is determined from the preset isolation configuration table. The isolation configuration table is used to characterize the correspondence between the isolation and the port of the RF device in the RF front end that needs to be configured to the isolated state.

[0015] In one possible implementation, determining the target isolation required by the RF front end according to the operating frequency band includes:

[0016] Match the operating frequency band with the frequency band interference database to obtain the basic isolation required by the RF front end;

[0017] The basic isolation is corrected according to the modem's transmit power and modulation order to obtain the target isolation.

[0018] In one possible implementation, the basic isolation is corrected according to the transmit power and modulation order of the modem to obtain the target isolation, including:

[0019] determining a transmit power correction amount based on the transmit power of the modem;

[0020] determining a modulation order correction amount based on a modulation order of the modem;

[0021] The sum of the transmit power correction and the modulation order correction is added to the basic isolation to obtain the target isolation.

[0022] In one possible implementation, determining a transmit power correction amount based on a transmit power of a modem includes: determining a target power difference between the transmit power of the modem and a reference power of the modem; determining a target transmit power correction coefficient corresponding to the target power difference based on a mapping relationship between the power difference and the transmit power correction coefficient; and determining the transmit power correction amount by multiplying the target transmit power correction coefficient by the target power difference.

[0023] And / or, based on the modulation order of the modem, determining the modulation order correction amount, including: determining a target order difference between the modulation order of the modem and a reference modulation order of the modem; determining a target order correction coefficient corresponding to the target order difference based on a mapping relationship between the order difference and the order correction coefficient; and determining the product of the target order correction coefficient and the target order difference as the modulation order correction amount.

[0024] In a second aspect, the present application provides a spurious radiation optimization device for a radio frequency front end, comprising:

[0025] An acquisition module, configured to acquire an operating frequency band of a modem connected to the RF front end;

[0026] A determination module is used to determine, based on the operating frequency band, an isolated port where the RF front end does not generate spurious radiation;

[0027] The control module is used to control the isolation port to be set to an isolation state.

[0028] In a possible implementation, the determination module is specifically configured to:

[0029] If the operating frequency band is the first frequency band, determine that the port corresponding to the second frequency band is an isolation port when the RF front end does not generate spurious radiation;

[0030] If the first frequency band is a high frequency band, the second frequency band is a low frequency band; if the first frequency band is a low frequency band, the second frequency band is a high frequency band.

[0031] In a possible implementation, the determination module is specifically configured to:

[0032] Determine the target isolation required for the RF front end based on the operating frequency band;

[0033] Based on the target isolation, the isolation port corresponding to the target isolation when the RF front end does not generate spurious radiation is determined from the preset isolation configuration table. The isolation configuration table is used to characterize the correspondence between the isolation and the port of the RF device in the RF front end that needs to be configured to the isolated state.

[0034] In a possible implementation, the determination module is specifically configured to:

[0035] Match the operating frequency band with the frequency band interference database to obtain the basic isolation required by the RF front end;

[0036] The basic isolation is corrected according to the modem's transmit power and modulation order to obtain the target isolation.

[0037] In a possible implementation, a processing module is further included, and the processing module is specifically configured to:

[0038] determining a transmit power correction amount based on the transmit power of the modem;

[0039] determining a modulation order correction amount based on a modulation order of the modem;

[0040] The sum of the transmit power correction and the modulation order correction is added to the basic isolation to obtain the target isolation.

[0041] In a possible implementation, the determination module is specifically configured to:

[0042] determining a target power difference between a transmit power of the modem and a reference power of the modem;

[0043] Determine the target transmit power correction factor corresponding to the target power difference based on the mapping relationship between the power difference and the transmit power correction factor;

[0044] The product of the target transmit power correction coefficient and the target power difference is determined as the transmit power correction amount;

[0045] and / or,

[0046] The determination module is specifically configured to: determine a target order difference between a modulation order of the modem and a reference modulation order of the modem;

[0047] Based on the mapping relationship between the order difference and the order correction coefficient, determining the target order correction coefficient corresponding to the target order difference;

[0048] The product of the target order correction coefficient and the target order difference is determined as the modulation order correction amount.

[0049] In a third aspect, the present application provides an electronic device, comprising: a memory, a processor;

[0050] Memory stores computer-executable instructions;

[0051] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0052] In a fourth aspect, the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed, they are used to implement the above first aspect and / or various possible implementation methods of the first aspect.

[0053] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed, implements the above first aspect and / or various possible implementations of the first aspect.

[0054] The present application provides a method, device, medium and product for optimizing the spurious radiation of the RF front end, which relate to wireless communication technology. The method includes: obtaining the working frequency band of the modem connected to the RF front end; determining the isolation port when the RF front end does not generate spurious radiation based on the working frequency band; and controlling the isolation port to be set to an isolated state. The present application determines the isolation port when the RF front end does not generate spurious radiation based on the obtained working frequency band of the modem connected to the RF front end, and controls the isolation port to be set to an isolated state. This is beneficial for actively setting the isolation port to an isolated state when the wireless communication device enters the working frequency band, thereby effectively preventing or suppressing the generation of spurious radiation from the RF front end, thereby overcoming the lag of the current method that requires passive processing after the spurious radiation is generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0056] Figure 1 Schematic diagram of the process of optimizing the spurious radiation of the RF front end provided in this application Figure 1 ;

[0057] Figure 2 A schematic diagram of a circuit of a radio frequency front end provided in an embodiment of the present application;

[0058] Figure 3 A flow chart of the state detection mechanism provided in an embodiment of the present application;

[0059] Figure 4 A schematic diagram of the structure of a spurious radiation optimization device for a radio frequency front end provided in an embodiment of the present application;

[0060] Figure 5 A schematic diagram of the structure of an electronic device provided in one embodiment of the present application.

[0061] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0062] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0063] First, let’s explain the terms used in this application:

[0064] Modems: These devices process digital signals and convert them into analog signals at specific frequencies for transmission, or convert received analog signals into digital signals. Different communication standards and network environments use different frequencies. As the core of signal processing, modems typically know the frequency currently in use.

[0065] As competition in the consumer electronics market intensifies, hardware designs with lower costs and higher performance will gain greater market share and product competitiveness. To meet the current RF front-end requirements for spurious emissions, mitigating harmonic propagation paths at the RF front-end can significantly reduce overall device identification risks.

[0066] Current RF front-end spurious emission optimization methods have significant drawbacks. First, they are passive optimization methods that can only address spurious emission issues after they have already occurred and been detected, resulting in a significant lag. Due to the complex and ever-changing operating conditions of wireless communication devices, spurious emission issues can dynamically arise at different times and in different scenarios. This lagging approach cannot respond to these changes in a timely manner, resulting in poor optimization results.

[0067] In response to the above problems, the present application provides a method for optimizing the spurious radiation of the RF front end. By determining the isolation port when the RF front end does not generate spurious radiation based on the obtained working frequency band of the modem connected to the RF front end, and controlling the isolation port to be set to an isolated state, this is beneficial for actively setting the isolation port to an isolated state when the wireless communication device enters the working frequency band, thereby effectively preventing or suppressing the generation of spurious radiation from the RF front end, thereby overcoming the lag of the current method that requires passive processing after the spurious radiation is generated.

[0068] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0069] Figure 1 Schematic diagram of the process of optimizing the spurious radiation of the RF front end provided in this application Figure 1 ,like Figure 1 As shown, the method includes:

[0070] S101: Acquire an operating frequency band of a modem connected to a radio frequency front end.

[0071] In this step, it is understood that optimizing the RF front-end's spurious emissions first requires obtaining the frequency range of the RF signal currently being processed by the modem. The method for obtaining the operating frequency band of the modem connected to the RF front-end can be selected based on actual circumstances.

[0072] In one implementation, the modem is connected to a processor such as a computer via a high-speed digital interface. The processor such as the computer queries the modem by reading the value of a characteristic register provided by the modem or sending a specific control command to obtain the current operating frequency band information.

[0073] In another implementation, the modem is connected to a processor such as a computer via a high-speed digital interface. When the operating frequency band of the modem changes, such as switching the operating frequency band, the modem can trigger an interrupt signal to notify the processor such as the computer. After receiving the interrupt, the processor such as the computer executes the corresponding program and reads the operating frequency band of the modem through the above-mentioned high-speed digital interface.

[0074] S102. Determine, based on the operating frequency band, an isolation port where the RF front end does not generate spurious radiation.

[0075] After the operating frequency band is obtained through S101, an isolation port when the RF front end does not generate spurious radiation is determined according to the operating frequency band.

[0076] In one example, based on the working frequency band, the isolation port when the RF front end does not generate spurious radiation is determined, including: if the working frequency band is the first frequency band, determining the port corresponding to the second frequency band as the isolation port when the RF front end does not generate spurious radiation; wherein, if the first frequency band is a high frequency band, the second frequency band is a low frequency band; if the first frequency band is a low frequency band, the second frequency band is a high frequency band.

[0077] In this example, it can be understood that when the operating frequency band is the first frequency band, the port corresponding to the second frequency band is determined to be the isolation port when the RF front end does not generate spurious radiation. Specifically, when the first frequency band is a high frequency band, the second frequency band is a low frequency band; when the first frequency band is a low frequency band, the second frequency band is a low frequency band.

[0078] Assume that a wireless communication device supports the following two frequency bands:

[0079] Low frequency band: LTE Band 1, frequency range: uplink 1920MHz–1980MHz, downlink 2110MHz–2170MHz.

[0080] High frequency band: 5G N77 band, frequency range: uplink 3400MHz–3600MHz, downlink 3400MHz–3600MHz.

[0081] The modem reports that the current operating frequency band is LTE Band 1. According to the above rules, the second frequency band is 5G N77. The RF front-end port corresponding to the 5G N77 band is determined to be the isolated port when the RF front-end does not generate spurious radiation. The modem reports that the current operating frequency band is 5G N77. According to the above rules, the second frequency band is LTE Band 1. The RF front-end port corresponding to LTE Band 1 is determined to be the isolated port when the RF front-end does not generate spurious radiation.

[0082] The embodiment of the present application predetermines the isolation port when the RF front end does not generate spurious radiation under ideal conditions according to the operating frequency band, thereby achieving proactive and predictive optimization of the RF front end spurious radiation.

[0083] In another example, the isolation port when the RF front end does not generate spurious radiation is determined based on the operating frequency band, including: determining the target isolation required for the RF front end based on the operating frequency band; based on the target isolation, determining the isolation port when the RF front end does not generate spurious radiation corresponding to the target isolation from a preset isolation configuration table, the isolation configuration table being used to characterize the correspondence between the isolation and the port of the RF device in the RF front end that needs to be configured to the isolated state.

[0084] In this example, it can be understood that to determine the isolation port at which the RF front-end generates no spurious radiation, the minimum isolation requirement that the RF front-end must achieve within the current operating frequency band must be determined based on the operating frequency band. This is known as the target isolation. The target isolation represents the minimum signal isolation required between different paths of the RF front-end to effectively suppress spurious radiation within the current operating frequency band. Subsequently, based on the target isolation, the isolation port at which the RF front-end generates no spurious radiation, corresponding to the target isolation, is determined from a preset isolation configuration table.

[0085] Assume the modem reports the current operating frequency band as 5G N77. According to the policy in this example, when operating in the 5G N77 band, to prevent the low-band RF path from becoming a source of spurious radiation, a relatively low target isolation level (for example, 20 dB) is set between the mid-band and low-band. Then, from the preset isolation configuration table, the isolation port corresponding to 20 dB, where the RF front end generates no spurious radiation, is determined.

[0086] The embodiment of the present application uses this strategy of dynamically setting the target isolation based on the operating frequency band and determining the isolation configuration through table lookup to achieve more accurate, flexible and efficient dynamic optimization of the RF front-end spurious radiation, overcoming the limitations of static isolation or manual intervention in current methods.

[0087] Furthermore, based on the target isolation, the isolation ports corresponding to the target isolation level at which the RF front-end generates no spurious radiation can be determined by constructing a mathematical model of the RF front-end. Specifically, after determining the target isolation level, an optimization algorithm, combined with the aforementioned mathematical model of the RF front-end, dynamically calculates the optimal isolation configuration that meets the target isolation level. Specifically, the optimal isolation configuration that meets the target isolation level is determined, specifically determining which ports of which RF components need to be isolated.

[0088] Furthermore, based on the target isolation, the isolation ports corresponding to the target isolation level, at which the RF front-end generates no spurious radiation, can be determined by establishing a rule base based on expert knowledge. Specifically, after determining the target isolation level, the current operating frequency band and the target isolation level are input into the rule engine of the rule base. The rule engine then infers and determines which ports of which RF components need to be isolated based on pre-set rules. For example, a rule can be set such that if the operating frequency band is X and the target isolation level is Ydb, then rule Z is activated, setting ports A and B to an isolated state.

[0089] In summary, this dynamic isolation strategy based on operating frequency bands effectively prevents or suppresses spurious emissions, significantly reducing radiated spurious emissions from devices in different operating states, and improving the real-time and effectiveness of optimization. Furthermore, by predetermining the isolation ports, real-time calculations and decision-making processes can be simplified, improving optimization efficiency and accuracy.

[0090] S103: Control the isolation port to be set to an isolation state.

[0091] After determining the isolation port, a processor such as a computer generates control instructions based on the isolation port. These instructions are sent to controllable RF components in the RF front-end, such as RF switches or combiners. These control instructions change the internal connection state of the controllable RF components, disconnecting the previously determined isolation port from the signal path, thereby isolating the signal. The ultimate goal of controlling the isolation port to the isolation state is to disconnect non-essential signal paths, thereby reducing signal leakage and interference, thereby reducing spurious emissions from the RF front-end.

[0092] The embodiment of the present application determines the isolation port when the RF front end does not generate spurious radiation based on the obtained operating frequency band of the modem connected to the RF front end, and controls the isolation port to be set to an isolated state. This is beneficial for actively setting the isolation port to an isolated state when the wireless communication device enters the operating frequency band, thereby effectively preventing or suppressing the generation of spurious radiation from the RF front end, thereby overcoming the lag of the current method that requires passive processing after the spurious radiation is generated.

[0093] Based on the above embodiment, the target isolation required by the RF front end is determined according to the operating frequency band, including: matching the operating frequency band with the frequency band interference database to obtain the basic isolation required by the RF front end; and correcting the basic isolation according to the modem's transmit power and modulation order to obtain the target isolation.

[0094] The frequency band interference database stores interference information between different frequency bands. For example, the frequency band interference database records that when the operating frequency band is frequency band F, it is susceptible to interference from frequency band E. After obtaining the operating frequency band, the frequency band interference database is queried for interference information related to the current operating frequency band. The basic isolation required by the RF front end is then determined based on the interference information. The setting of the basic isolation depends on the interference situation faced by the current operating frequency band. Specifically, when a frequency band is susceptible to strong adjacent interference sources or may cause significant interference to other frequency bands, the basic isolation value will be increased accordingly to enhance anti-interference capabilities or reduce interference radiation. This dynamic adjustment mechanism can effectively ensure electromagnetic compatibility between frequency bands.

[0095] Furthermore, since the basic isolation obtained by matching the working frequency band with the frequency band interference database may not fully reflect the spurious radiation risk under the current actual working state, the embodiment of the present application further corrects the basic isolation by obtaining the real-time working parameters of the modem's transmission power and modulation order, so as to dynamically determine the target isolation that the RF front end needs to achieve.

[0096] Specifically, the basic isolation is corrected according to the transmission power and modulation order of the modem to obtain the target isolation, including: determining the transmission power correction amount based on the transmission power of the modem; determining the modulation order correction amount based on the modulation order of the modem; and superimposing the sum of the transmission power correction amount and the modulation order correction amount on the basic isolation to obtain the target isolation.

[0097] Among them, based on the transmission power of the modem, the transmission power correction amount is determined, including: determining the target power difference between the transmission power of the modem and the reference power of the modem; based on the mapping relationship between the power difference and the transmission power correction coefficient, determining the target transmission power correction coefficient corresponding to the target power difference; multiplying the target transmission power correction coefficient and the target power difference as the transmission power correction amount; and / or, based on the modulation order of the modem, determining the modulation order correction amount, including: determining the target order difference between the modulation order of the modem and the reference modulation order of the modem; based on the mapping relationship between the order difference and the order correction coefficient, determining the target order correction coefficient corresponding to the target order difference; and multiplying the target order correction coefficient and the target order difference as the modulation order correction amount.

[0098] The embodiment of the present application corrects the basic isolation to obtain the target isolation, which can make the optimization of the RF front-end spurious complexity more accurate.

[0099] Next, an example will be given to illustrate how to use the spurious radiation optimization method of the RF front end provided in the embodiment of the present application. In order to meet the design requirements of carrier aggregation (CA), E-UTRA New Radio Dual Connectivity (ENDC) and antenna switching, RF switches, combiners and other devices are usually used to ensure that the RF signal can meet the design requirements in the hardware path. This will also greatly increase the possible leakage paths of the fundamental frequency and harmonics in the link, and the risk of exciting harmonics will also be significantly increased; secondly, an antenna tuning switch is usually used at the antenna end. The tuning switch changes the equivalent impedance of the antenna by adjusting the internal circuit (such as variable capacitors, inductors, etc.) to match it with the transmitter impedance and maximize power transmission efficiency; because the antenna tuning switch layout is usually close to the antenna, it is easy to be hit by high-power signals, resulting in oversaturation, exciting nonlinearity and causing harmonic problems. High-power signals refer to signals transmitted by mobile phones in the Global System for Mobile Communications (GSM) system.

[0100] Figure 2 This is a circuit diagram of the radio frequency front end provided in the embodiment of the present application. Figure 2 As shown in the figure, when operating in a low-frequency band, the TRX channel in the current timeslot transmits and receives through ANT1, and the DRX channel receives through ANT3. For the switches on the TRX and DRX channels, the ports that are not operating in the current timeslot are switched to the high-isolation state. At the same time, the N77 module switches on the channel-related combiners to the high-isolation state to reduce the paths for harmonic propagation in the link.

[0101] Secondly, when the low frequency band is working, the non-working medium and high frequency antenna tuning switches are turned off, and each port of the antenna switch is configured in an isolated state to prevent the fundamental frequency of the frequency band from entering the antenna switch, causing the switch to be oversaturated and exciting harmonics.

[0102] With this design, a computer can read the modem's current operating status, such as its operating frequency band. Using this information, the computer calculates the components and ports that need to be configured in isolation. Simultaneously, the RF components must also support the configuration of each port in isolation.

[0103] It's important to note that RF switches allow or block signals by switching between on and off. RF switches can be categorized as single-pole single-throw (SPST), single-pole double-throw (SPDT), and multi-pole multi-throw (MPMT). The switch itself consists of multiple MOS transistors connected in parallel. When the switch operates in the linear region, the simulated waveform is a sine wave. When the switch operates in the nonlinear region, the switch experiences overvoltage, causing waveform distortion. Odd functions are expanded into odd-order functions through Fourier transforms. Spurious radiation harmonics caused by RF antenna switches in electronic product projects typically occur as odd-order harmonics. Increasing the switch's withstand voltage and configuring the switch to an isolated state can attenuate the fundamental frequency energy entering the switch, simulating oversaturation in the nonlinear region.

[0104] In order to obtain reliable status feedback, the embodiment of the present application also designs the following Figure 3 The status detection mechanism shown is used to ensure accurate acquisition of the switch status. Figure 3 This is a flow chart of the state detection mechanism provided in the embodiment of the present application. Figure 3 As shown, the computer first determines the open ports by dynamically detecting the operating status of the RF switch and antenna switch and reading register values. Then, based on the acquired information, it sends instructions to the RF switch and antenna switch to isolate the switch ports that are not in operation.

[0105] In summary, the embodiments of the present application mainly identify the current state of the RF path and configure unnecessary switches, dividers, antenna tuning switches and other machines that may excite harmonics to a high isolation state, thereby ensuring that the fundamental wave and the second and third harmonics can be effectively isolated in the link, thereby reducing the radiated stray energy of the entire machine.

[0106] The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0107] Figure 4 This is a schematic diagram of the structure of the spurious radiation optimization device of the radio frequency front end provided in the embodiment of the present application. Figure 4 As shown, the spurious radiation optimization device 400 of the radio frequency front end provided in this embodiment includes:

[0108] An acquisition module 401 is configured to acquire an operating frequency band of a modem connected to a radio frequency front end;

[0109] A determination module 402 is configured to determine, based on an operating frequency band, an isolation port where the RF front end does not generate spurious radiation;

[0110] The control module 403 is used to control the isolated port to be set to an isolated state.

[0111] In a possible implementation, the determining module 402 is specifically configured to:

[0112] If the operating frequency band is the first frequency band, determine that the port corresponding to the second frequency band is an isolation port when the RF front end does not generate spurious radiation;

[0113] If the first frequency band is a high frequency band, the second frequency band is a low frequency band; if the first frequency band is a low frequency band, the second frequency band is a high frequency band.

[0114] In a possible implementation, the determining module 402 is specifically configured to:

[0115] Determine the target isolation required for the RF front end based on the operating frequency band;

[0116] Based on the target isolation, the isolation port corresponding to the target isolation when the RF front end does not generate spurious radiation is determined from the preset isolation configuration table. The isolation configuration table is used to characterize the correspondence between the isolation and the port of the RF device in the RF front end that needs to be configured to the isolated state.

[0117] In a possible implementation, the determining module 402 is specifically configured to:

[0118] Match the operating frequency band with the frequency band interference database to obtain the basic isolation required by the RF front end;

[0119] The basic isolation is corrected according to the modem's transmit power and modulation order to obtain the target isolation.

[0120] In a possible implementation, a processing module (not shown) is further included, and the processing module is specifically configured to:

[0121] determining a transmit power correction amount based on the transmit power of the modem;

[0122] determining a modulation order correction amount based on a modulation order of the modem;

[0123] The sum of the transmit power correction and the modulation order correction is added to the basic isolation to obtain the target isolation.

[0124] In a possible implementation, the determining module 402 is specifically configured to:

[0125] determining a target power difference between a transmit power of the modem and a reference power of the modem;

[0126] Determine the target transmit power correction factor corresponding to the target power difference based on the mapping relationship between the power difference and the transmit power correction factor;

[0127] The product of the target transmit power correction coefficient and the target power difference is determined as the transmit power correction amount;

[0128] and / or,

[0129] The determination module 402 is specifically configured to: determine a target order difference between a modulation order of the modem and a reference modulation order of the modem;

[0130] Based on the mapping relationship between the order difference and the order correction coefficient, determining the target order correction coefficient corresponding to the target order difference;

[0131] The product of the target order correction coefficient and the target order difference is determined as the modulation order correction amount.

[0132] The spurious radiation optimization device for the RF front end provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effects are similar, and are not described in detail in this embodiment.

[0133] It should be noted that it should be understood that the division of the various modules of the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the processing module can be a separately established processing element, or it can be integrated into a chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and called by a processing element of the above device to perform the functions of the above processing module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the hardware integrated logic circuit in the processor element or by instructions in the form of software.

[0134] For example, the above modules can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0135] Figure 5 This is a schematic diagram of the structure of an electronic device provided in one embodiment of the present application. Figure 5 As shown, the electronic device 500 provided in the embodiment of the present application may include: a processor 501, and a memory 502 communicatively connected to the processor, wherein:

[0136] Memory stores computer-executable instructions;

[0137] The processor executes the computer-executable instructions stored in the memory to implement the method described in the foregoing method embodiment.

[0138] It should be understood that the processor 501 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or the processor can be any conventional processor, etc. The steps of the method disclosed in the application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor. The memory 502 may include high-speed random access memory (RAM), and may also include non-volatile storage NVM (non-volatile memory), such as at least one disk storage, and can also be a USB flash drive, a mobile hard disk, a read-only memory, a disk or an optical disk, etc.

[0139] Optionally, the electronic device 500 may further include a communication interface 503. In a specific implementation, if the communication interface 503, the memory 502, and the processor 501 are implemented independently, the communication interface 503, the memory 502, and the processor 501 may be interconnected via a bus and communicate with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be divided into address buses, data buses, control buses, etc., but this does not mean that there is only one bus or only one type of bus.

[0140] Optionally, in a specific implementation, if the communication interface 503, the memory 502 and the processor 501 are integrated on a chip, the communication interface 503, the memory 502 and the processor 501 can complete communication through an internal interface.

[0141] An embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed, they are used to implement the method described in any of the aforementioned embodiments.

[0142] It is understood that the computer-readable storage medium 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 storage, flash memory, magnetic disk or optical disk. The computer-readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0143] An exemplary computer-readable storage medium is coupled to a processor, such that the processor can read information from and write information to the computer-readable storage medium. Of course, the computer-readable storage medium can also be an integral part of the processor. The processor and the computer-readable storage medium can reside in an ASIC. Of course, the processor and the computer-readable storage medium can also reside as discrete components in an electronic device.

[0144] The above-mentioned integrated module implemented in the form of a software function module can be stored in a computer-readable storage medium. The above-mentioned software function module is stored in a computer-readable storage medium and includes a number of instructions for causing an electronic device (which can be a personal computer, server, or network device, etc.) or a processor to perform some steps of the method described in various embodiments of the present application.

[0145] An embodiment of the present application also provides a computer program product, including a computer program, which implements the method described in any of the aforementioned embodiments when executed.

[0146] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all optional embodiments, and the actions and modules involved are not necessarily required by this application.

[0147] It should be further noted that, although the various steps in the flowchart are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps may be performed in other orders. Moreover, at least a portion of the steps in the flowchart may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but may be performed at different times. The execution order of these sub-steps or stages is not necessarily to be performed in sequence, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0148] In the above embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a particular embodiment, please refer to the relevant description of other embodiments. The technical features of the above embodiments can be combined in any way. To keep the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0150] It should be understood that the present application is not limited to the exact structure 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 application is limited only by the appended claims.

Claims

1. A method for optimizing spurious radiation of a radio frequency front end, characterized in that: include: Obtaining an operating frequency band of a modem connected to the radio frequency front end; Determining, based on the operating frequency band, an isolation port at which the radio frequency front end does not generate spurious radiation; The control sets the isolation port to an isolation state.

2. The optimization method according to claim 1, characterized in that The determining, based on the operating frequency band, an isolated port when the radio frequency front end does not generate spurious radiation includes: If the operating frequency band is the first frequency band, determining that the port corresponding to the second frequency band is the isolation port when the RF front end does not generate spurious radiation; If the first frequency band is a high frequency band, the second frequency band is a low frequency band; if the first frequency band is a low frequency band, the second frequency band is a high frequency band.

3. The optimization method according to claim 1, characterized in that The determining, based on the operating frequency band, an isolated port when the radio frequency front end does not generate spurious radiation includes: Determining a target isolation required by the RF front end according to the operating frequency band; Based on the target isolation, the isolation port corresponding to the target isolation when the RF front end does not generate spurious radiation is determined from a preset isolation configuration table. The isolation configuration table is used to characterize the correspondence between the isolation and the port of the RF device in the RF front end that needs to be configured to the isolated state.

4. The optimization method according to claim 3, characterized in that Determining the target isolation required by the radio frequency front end according to the operating frequency band includes: Matching the operating frequency band with a frequency band interference database to obtain the basic isolation required by the radio frequency front end; The basic isolation is corrected according to the transmission power and modulation order of the modem to obtain the target isolation.

5. The optimization method according to claim 4, characterized in that: The step of correcting the basic isolation according to the transmit power and modulation order of the modem to obtain the target isolation includes: determining a transmit power correction based on the transmit power of the modem; determining a modulation order correction based on a modulation order of the modem; The sum of the transmit power correction amount and the modulation order correction amount is superimposed on the basic isolation to obtain the target isolation.

6. The optimization method according to claim 5, characterized in that: Determining the transmit power correction amount based on the transmit power of the modem includes: determining a target power difference between the transmit power of the modem and a reference power of the modem; determining a target transmit power correction coefficient corresponding to the target power difference based on a mapping relationship between the power difference and the transmit power correction coefficient; and determining the transmit power correction amount by multiplying the target transmit power correction coefficient by the target power difference. And / or, determining the modulation order correction amount based on the modulation order of the modem includes: determining a target order difference between the modulation order of the modem and a reference modulation order of the modem; determining a target order correction coefficient corresponding to the target order difference based on a mapping relationship between the order difference and the order correction coefficient; and determining the product of the target order correction coefficient and the target order difference as the modulation order correction amount.

7. A spurious radiation optimization device for a radio frequency front end, characterized in that: include: An acquisition module, configured to acquire an operating frequency band of a modem connected to the radio frequency front end; A determination module, configured to determine, based on the operating frequency band, an isolation port at which the radio frequency front end does not generate spurious radiation; The control module is used to control the isolation port to be set to an isolation state.

8. An electronic device, characterized in that: include: Memory, processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed.

10. A computer program product, characterized in that The invention comprises a computer program, which implements the method according to any one of claims 1 to 6 when the computer program is executed.

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