Multi-input LNA control method, device, equipment, medium and product

Abstract

The invention provides a multi-input LNA control method and device, equipment, a medium and a product, a multi-input LNA control module can select different target input ports to be conducted with an amplification module by controlling a gating module, so that a plurality of different radio frequency signals can be received through an arranged amplification input circuit group, and the multi-input LNA control method and device can be applied to a multi-input LNA. Therefore, it is ensured that the multi-input LNA can more accurately and effectively amplify the radio frequency signal received by any one of the multiple input ports, and the control logic is relatively simple, so that the control method also has the characteristic of being easy to implement, and application and popularization of the embodiment of the invention are more facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to radio frequency technology, and in particular to a control method, device, equipment, medium and product of a multi-input low noise amplifier (LNA). BACKGROUND

[0002] The LNA is a commonly used circuit component in electronic equipment, which can be used for amplifying the received radio frequency signals, and can reduce the introduction of noise as much as possible while amplifying the radio frequency signals, thereby improving the signal-to-noise ratio and receiving sensitivity of the radio frequency system.

[0003] In the prior art, based on the different functional requirements of electronic equipment, some electronic equipment is provided with a multi-input LNA, which can receive corresponding radio frequency signals through multiple input ports and can amplify each radio frequency signal received by each input port.

[0004] However, how to control the multi-input LNA to make the multi-input LNA more effectively amplify the radio frequency signals received by the multiple input ports is a technical problem to be solved in the field. SUMMARY

[0005] The present application provides a control method, device, equipment, medium and product of a multi-input LNA to more effectively amplify the radio frequency signals received by the multiple input ports.

[0006] The first aspect of the present application provides a control method of a multi-input LNA, the multi-input LNA comprising: at least one amplification input circuit group, and an amplification output circuit connected to the at least one amplification input circuit group respectively, the amplification input circuit group being configured to perform first-stage amplification processing on the received radio frequency signals and output to the amplification output circuit, the amplification output circuit being configured to perform second-stage amplification processing on the radio frequency signals and output, wherein the amplification input circuit group comprises: a plurality of input ports, a gating module connected to the plurality of input ports respectively, and an amplification module connected to the gating module, the plurality of input ports being configured to receive corresponding radio frequency signals respectively, and the amplification module being configured to perform first-stage amplification processing on the received radio frequency signals and output; the control method comprising: determining a target input port for receiving radio frequency signals in the plurality of input ports; controlling the gating module to turn on the target input port and the amplification module, so that the amplification module performs first-stage amplification processing on the radio frequency signals received by the target input port and outputs.

[0007] In an embodiment of the first aspect of the application, the gating module comprises a plurality of switch units corresponding to the plurality of input ports; and the control of the gating module to enable the target input port and the amplification module comprises: controlling the switch unit corresponding to the target input port to be turned on and controlling other switch units to be turned off.

[0008] In an embodiment of the first aspect of the application, after the control of the gating module to enable the target input port and the amplification module, the method further comprises: in the case that the current value of the instantaneous current of the target input port is greater than a preset threshold, controlling the switch unit corresponding to the target input port to be turned off, so as to protect the devices in the multi-input LNA.

[0009] In an embodiment of the first aspect of the application, the amplification module comprises a plurality of first amplification switches, and the plurality of first amplification switches have different transconductances; and the control method further comprises: determining a target first amplification switch required by the target signal in the plurality of first amplification switches; and controlling the target input port and the target first amplification switch to be enabled, so that the target first amplification switch performs one-stage amplification processing on the radio frequency signal received by the target input port and outputs.

[0010] In an embodiment of the first aspect of the application, the determination of the target input port for receiving a radio frequency signal in the plurality of input ports comprises: determining a target input port corresponding to configuration information of a radio frequency signal receiving device connected to the multi-input LNA; or determining a target input port corresponding to characteristic information of a radio frequency signal to be received by the multi-input LNA; or determining a target input port corresponding to characteristic information of a radio frequency signal output by the multi-input LNA; or sequentially using the plurality of input ports to receive the radio frequency signal, and determining a target input port corresponding to the radio frequency signal based on a radio frequency signal processed by the multi-input LNA for each input port; or in the case that a previous target input port in the plurality of input ports is enabled and the amplification module, re-determining a target input port for receiving a radio frequency signal in the plurality of input ports.

[0011] In an embodiment of the first aspect of the application, the control method further comprises: when the target input port is connected with the amplification module, controlling the gating module to connect at least one candidate input port in the plurality of input ports with the storage module, and causing the storage module to store candidate radio frequency signals received by the at least one candidate input port; and when the amplification module outputs radio frequency signals, controlling the storage module to be connected with the amplification module, causing the amplification module to perform one-stage amplification processing on the at least one candidate radio frequency signal and output the at least one candidate radio frequency signal; and / or the control method further comprises: controlling the gating module to connect a plurality of target input ports in the plurality of input ports with the amplification module in a preset period with a preset duty cycle, causing the amplification module to perform one-stage amplification processing on radio frequency signals received by the plurality of target input ports and output the radio frequency signals.

[0012] The second aspect of the application provides a control device of a multi-input LNA, the multi-input LNA comprising: at least one amplification input circuit group, and an amplification output circuit connected with the at least one amplification input circuit group respectively, the amplification input circuit group being configured to perform one-stage amplification processing on received radio frequency signals and output the radio frequency signals to the amplification output circuit, and the amplification output circuit being configured to perform two-stage amplification processing on the radio frequency signals and output the radio frequency signals, wherein the amplification input circuit group comprises: a plurality of input ports, a gating module connected with the plurality of input ports respectively, and an amplification module connected with the gating module, the plurality of input ports being configured to receive corresponding radio frequency signals respectively, and the amplification module being configured to perform one-stage amplification processing on received radio frequency signals and output the radio frequency signals; the control device comprising: a determination module configured to determine a target input port in the plurality of input ports for receiving radio frequency signals; and a control module configured to control the gating module to connect the target input port with the amplification module, so that the amplification module performs one-stage amplification processing on radio frequency signals received by the target input port and outputs the radio frequency signals.

[0013] The third aspect of the application provides an electronic device, comprising: a processor, and a memory connected with the processor in communication; the memory stores computer execution instructions; and the processor executes the computer execution instructions stored in the memory to implement the method according to any one of the first aspect of the application.

[0014] The fourth aspect of the application provides a computer readable storage medium, the computer readable storage medium storing computer execution instructions, the computer execution instructions being executed by a processor to implement the method according to any one of the first aspect of the application.

[0015] The fifth aspect of the application provides a computer program product, comprising a computer program, the computer program being executed by a processor to implement the method according to any one of the first aspect of the application.

[0016] In summary, the control method, device, equipment, medium and product of the multi-input LNA provided by the application, the control module can select different target input ports and turn on the amplification module through the control of the gating module, so that one set of amplification input circuit can realize the reception of multiple different radio frequency signals, thereby ensuring that the multi-input LNA can more accurately and effectively amplify the radio frequency signals received by any input port in the multiple input ports, and the control logic is relatively simple, so that the control method also has the characteristics of easy implementation, and is more conducive to the application and promotion of the embodiments of the application. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] The drawings herein are incorporated into the specification and form part of the specification, show embodiments consistent with the application, and together with the specification serve to explain the principles of the application.

[0019] Figure 1 The schematic diagram of the application scenario of the application;

[0020] Figure 2 The structural schematic diagram of one embodiment of the multi-input LNA provided by the application;

[0021] Figure 3 The structural schematic diagram of one embodiment of the amplification input circuit group provided by the application;

[0022] Figure 4 The circuit structural schematic diagram of one embodiment of the multi-input LNA provided by the application;

[0023] Figure 5 The flowchart of one embodiment of the control method of the multi-input LNA provided by the application;

[0024] Figure 6 The circuit structural schematic diagram of another embodiment of the amplification input circuit group provided by the application;

[0025] Figure 7 The schematic diagram of the mapping relationship stored by the control module provided by the application;

[0026] Figure 8 The circuit structural schematic diagram of one embodiment of the multi-input LNA provided by the application;

[0027] Figure 9 This is a schematic diagram of the structure of an electronic device provided in this application.

[0028] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] Figure 1 This is a schematic diagram illustrating the application scenario of this application, such as... Figure 1 As shown, this application provides a multi-input LNA1, wherein the LNA is a commonly used circuit component in the radio frequency circuit of electronic devices. It can be used to amplify the received radio frequency signal and minimize the introduction of noise while amplifying the radio frequency signal. Low noise, gain and linearity are the main indicators of LNA. LNA plays an important role in maintaining the overall low noise of the radio frequency system and can be used to effectively improve the signal-to-noise ratio and receiving sensitivity of the radio frequency system.

[0032] Furthermore, based on the different functional requirements of electronic devices, some electronic devices are equipped with features such as... Figure 1 The multi-input LNA1 shown can receive radio frequency (RF) signals from different antennas or signal sources through multiple input ports. Each input port corresponds to a different RF signal, and the multiple RF signals corresponding to the multiple input ports are independent of each other.Figure 1 In the example shown, the multi-input LNA 1 includes M input ports, and the radio frequency signals that can be received by the M input ports are denoted as RFin-1, RFin-2, …, RFin-M. The multi-input LNA can be used to amplify the radio frequency signal received by any input port and output the amplified radio frequency signal RFout from the output port to other modules or units of the electronic device for subsequent processing.

[0033] Figure 2 The structural schematic diagram of an embodiment of the multi-input LNA provided in the present application is shown in FIG. 1. Figure 2 The multi-input LNA 1 shown includes at least one amplification input circuit group 11 and an amplification output circuit 12. Figure 2 In the example shown, the multi-input LNA 1 includes multiple amplification input circuit groups 11, denoted as amplification input circuit group 11-1, amplification input circuit group 11-2, …, and the multiple amplification input circuit groups 11 are connected in parallel to the amplification output circuit 12.

[0034] Specifically, as shown in FIG. 2, each amplification input circuit group 11 is used to amplify and output the received radio frequency signal. Specifically, the amplification input circuit group 11 provided in the embodiment of the present application can be used to receive at least one radio frequency signal and output the received at least one radio frequency signal after one-stage amplification processing. The amplification output circuit 12 can be used to output the radio frequency signal after two-stage amplification processing. Figure 2 For example, in the example shown in FIG. 3, the amplification input circuit group 11-1 can be used for N different radio frequency signals, denoted as radio frequency signal RFin-11, radio frequency signal RFin-12, …, radio frequency signal RFin-1N. After receiving any of the radio frequency signals, the amplification input circuit group 11-1 can be used to amplify the radio frequency signal by one stage and output the radio frequency signal RFmid-1 amplified by one stage to the amplification output circuit 12. By analogy, the amplification input circuit group 11-2 can be used for Q different radio frequency signals, denoted as radio frequency signal RFin-21, radio frequency signal RFin-22, …, radio frequency signal RFin-2Q. After receiving any of the radio frequency signals, the amplification input circuit group 11-2 can be used to amplify the radio frequency signal by one stage and output the radio frequency signal RFmid-2 amplified by one stage to the amplification output circuit 12. For the amplification output circuit 12, any radio frequency signal RFmid amplified by one stage can be amplified by two stages, and the radio frequency signal RFout amplified by two stages is output.

[0035] Figure 2 Further, the multi-input LNA provided in the embodiment of the present application can be used for different radio frequency signals. For example, the multi-input LNA can be used for different radio frequency signals in different frequency bands, such as low frequency, medium frequency, high frequency, and very high frequency.

[0036] Further, the multi-input LNA provided in the embodiment of the present application can be used for different radio frequency signals. For example, the multi-input LNA can be used for different radio frequency signals in different frequency bands, such as low frequency, medium frequency, high frequency, and very high frequency. Figure 3 ​Fig. 1 shows a structural schematic diagram of an embodiment of the amplification input circuit group provided by the present application, and Figure 2 Taking the amplification input circuit group 11-1 of the multi-input LNA1 shown in Fig. 1 as an example, the structure of the amplification input circuit group provided by the embodiment of the present application is described. As shown in Fig. 1, the amplification input circuit group 11-1 provided by the embodiment of the present application includes a plurality of input ports 111, a gating module 112 and an amplification module 113. Figure 3

[0037] The plurality of input ports 111 are respectively used for receiving corresponding radio frequency signals. In the example shown in Fig. 1, the amplification input circuit group 11-1 can be used for receiving a radio frequency signal RFin-11, a radio frequency signal RFin-12,..., and a radio frequency signal RFin-1N. Therefore, the plurality of input ports 111 specifically include an input port 111-1, an input port 111-2,..., and an input port 111-N corresponding to the N radio frequency signals. Figure 3

[0038] The gating module 112 is connected to the plurality of input ports 111 and the amplification module 113, and is used for controlling a target input port in the plurality of input ports 111 to be conductive with the amplification module 113, so that the radio frequency signal received by the target input port is input to the amplification module 113 after passing through the gating module 112. The target input port is any one of the plurality of input ports 111, and the radio frequency signal is the radio frequency signal received by the any one input port. In combination with the structure shown in Fig. 1, any one of the plurality of input ports 111 is recorded as the target input port. For example, the input port 111-1 shown in Fig. 1 is recorded as the target input port. Therefore, the radio frequency signal received by the input port 111-1 is RFin-1. Specifically, as shown in Fig. 1, the gating module 112 of the amplification input circuit group 11-1 provided by the embodiment of the present application includes a plurality of switch units K corresponding to the plurality of input ports 111. In the example shown in Fig. 1, the plurality of switch units are recorded as a switch unit K1 corresponding to the input port 111-1, a switch unit K2 corresponding to the input port 111-2,..., and a switch unit KN corresponding to the input port 111-N. The first end of each switch unit K is connected to the corresponding input port 111, and the second end of each switch unit K is connected to the control end of the first amplification switch N1 in the amplification module 113 through a capacitor C. When the switch unit K is conductive, the input port corresponding to the switch unit K is conductive with the amplification module 113. Figure 3 Figure 3 Figure 3 Figure 3 Figure 3 The switch unit K can be a MOS tube. Alternatively, the switch unit K can also be implemented by other forms of switch circuit, for example, a diode, a triode, a MOSFET, an IGBT or a relay, etc. ​​​​​​

[0039] Amplification module 113 can amplify the RF signal from the target input port into a single stage, and then output the amplified RF signal RFmid-1 to amplification output circuit 12. Specifically, as shown... Figure 3 The amplification module 113 shown includes a first amplification switch for performing a first-stage amplification of the radio frequency signal, and the first amplification switch can be used to amplify the radio frequency signal received by any one of the multiple input ports 111.

[0040] exist Figure 3 In the example shown, the amplification input circuit group 11-1 also includes a DC blocking module, located between the gating module 112 and the amplification module 113, which can be used to isolate the DC current in the radio frequency signal. Figure 3 In the example shown, the DC blocking module is capacitor C.

[0041] More specifically, Figure 4 This is a schematic diagram of the circuit structure of an embodiment of the multi-input LNA provided in this application, illustrating an overall circuit structure of the multi-input LNA1 provided in this application. Figure 4 As shown, the multi-input LNA1 is equipped with multiple amplification input circuit groups: amplification input circuit group 11-1, amplification input circuit group 11-2, etc. In a specific implementation, an electrostatic discharge (ESD) protection module esd1 can be set between each input port of the amplification input circuit group 11 and the switching unit K, and an ESD protection module esd2 can be set between the switching unit K and the capacitor C.

[0042] In a specific implementation, the amplification module 113 in the amplification input circuit group 11 may further include a second amplification switch N2, wherein the second amplification switch N2 is a non-essential component. The gate terminal of the first amplification switch N1 is used to receive radio frequency signals, the source terminal of the first amplification switch N1 is grounded through the source degeneration inductor Ls, the drain terminal of the first amplification switch N1 is connected to the source terminal of the second amplification switch N2, the drain terminal of the second amplification switch N2 is connected to the amplification output circuit 12, and the gate terminal of the second amplification switch N2 is used to receive the bias voltage Vbcg. Both the first amplification switch N1 and the second amplification switch N2 can be N-type electronic switches, currently... Figure 6 The above is merely an example. The first amplifying switch N1 and the second amplifying switch N2 can also be P-type electronic switches, as long as the above functions are achieved. This application does not specifically limit the types of the first amplifying switch N1 and the second amplifying switch N2.

[0043] In one embodiment, such as Figure 6The shown amplification output circuit 12 includes adjustable resistor R2, adjustable capacitor C2 and inductor L2 in parallel, the first end of adjustable resistor R2, adjustable capacitor C2 and inductor L2 is used for receiving control signal, the second end of adjustable resistor R2, adjustable capacitor C2 and inductor L2 is connected with adjustable capacitor C3 and attenuation device Att1, adjustable capacitor C3 is also connected with output module MUX through attenuation device Att2. Among them, the resonant circuit composed of adjustable resistor R2, adjustable capacitor C2 and inductor L2 is used to provide load impedance and frequency selection characteristics, and the capacitance value and inductance value are adjusted according to the working frequency. The adjustable resistor is used to adjust the gain. The adjustable capacitor C3 can be used for output frequency matching, while isolating the direct current level, the adjustable capacitor C3 can be a fixed capacitor, also can be an adjustable capacitor, the working frequency band can be adjusted by adjusting the capacitance. Attenuation device Att1 and attenuation device Att2 are used for frequency matching and gain adjustment of radio frequency signal, and weaken the nonlinear effect of the overall circuit, improve the linearity of the circuit, and then improve the working stability and reliability of the multi-input LNA1, and also can realize input impedance matching. The output module MUX is used for outputting radio frequency signal RFout.

[0044] Based on the above-mentioned embodiments, the multi-input LNA1 further includes a control module 13, which can be used to control the gating module 112 in the multi-input LNA1, so that the amplification module 113 in different amplification input circuit groups 11 in the multi-input LNA1 amplifies the current received radio frequency signal. The control method executed by the control module 13 is described in detail in the following specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0045] Figure 5 The flowchart of an embodiment of the control method of the multi-input LNA provided in the present application is shown in Figure 5 The method shown can be applied to the multi-input LNA1 shown in Figure 2-4 The control method shown in Figure 5 The control method shown in

[0046] S101: The control module 13 determines the target input port for receiving the radio frequency signal in the plurality of input ports 111.

[0047] S102: The control module 13 controls the gating module 112, so that the target input port is turned on through the gating module 112 and the amplification module 113, so that the radio frequency signal received by the target input port is input to the amplification module 113 after passing through the gating module 112. The amplification module 113 can be used for the radio frequency signal from the target input port to perform one-stage amplification processing, and output the radio frequency signal RFmid-1 processed by the amplification processing to the amplification output circuit 12.

[0048] It can be seen that, in the multi-input LNA 1 provided in the application, a plurality of different radio frequency signals can be received by setting one amplification input circuit group 11, and the amplification module 113 in the amplification input circuit group 11 performs one-stage amplification processing on the received different radio frequency signals based on the same first amplification switch, so that the structure of the multi-input LNA 1 itself is relatively simple, and the volume and cost are relatively low. On this basis, in the control method of the multi-input LNA provided in the application, the control module 13 can control the gating module 112 to select different target input ports and the amplification module 113 to be turned on, so that the amplification module 113 amplifies the radio frequency signal received by the target input port, thereby ensuring that the multi-input LNA 1 can more accurately and effectively amplify the radio frequency signal received by any input port in the plurality of input ports 111, and the control logic is relatively simple, so that the control method also has the characteristics of easy implementation, and is more conducive to the application and promotion of the embodiments of the application.

[0049] In combination with the embodiments shown in Figure 3 When the gating module 112 includes a plurality of switch units, the step of controlling the gating module 112 to be turned on by the target input port and the amplification module 113 in S102 performed by the control module 13 specifically includes: controlling the switch unit corresponding to the target input port in the plurality of switch units to be turned on, and controlling other switch units in the gating module 112 except the switch unit to be turned off.

[0050] It can be seen that, in the control method of the multi-input LNA 1 provided in the embodiment, the gating module 112 of the multi-input LNA 1 is implemented by K switch units, which has a relatively simple implementation manner, so that the control logic of the control module 13 to the gating module 112 is more direct, only the turn-on and turn-off of the corresponding switch need to be controlled, which is more conducive to the specific implementation of the embodiment and can effectively reduce the software and hardware costs required when the embodiment is implemented.

[0051] In addition, based on the structure of the amplification input circuit 11-1 as shown in Figure 3 Since each input port 111 is connected to the amplification module 113 through an independent switch unit K, the switch unit K can be used as a current limiting device for ESD, thereby improving the ESD capability of the chip in which the multi-input LNA 1 is located.

[0052] For example, in an embodiment of the present application, when the control module 13 controls the switch unit in the gating module 112 to be turned on through S102, if the current value of the instantaneous current of the input port connected to the switch unit is greater than the preset threshold value, the control module 13 controls the switch unit to be turned off at this time, so that the switch unit plays a role of current limiting, thereby preventing the electrostatic discharge event of the input port from causing the instantaneous overcurrent damage of the device provided in the multi-input LNA 1, realizing the protection of the device in the multi-input LNA 1, and further improving the safety performance of the multi-input LNA 1.

[0053] In an embodiment, the control module 13 can obtain the current value of the input port connected to the switch unit collected by the current collection module, wherein the current collection module can be arranged inside the multi-input LNA 1 or arranged outside the multi-input LNA 1, and the current collection module can be used to collect the current value of each input port in the plurality of input ports 111 and send it to the control module 13.

[0054] Figure 6 The circuit structure schematic diagram of another embodiment of the amplification input circuit group provided in the present application is as shown in Figure 6 The amplification input circuit group 11-1 as Figure 3 The amplification module 113 specifically includes a plurality of first amplification switches, denoted as first amplification switch N1-a and first amplification switch N1-b, and the transconductance of each of the plurality of first amplification switches is different. At the same time, the gating module 112 further includes a switch unit Ka and a switch unit Kb.

[0055] Based on the multi-input LNA as Figure 6 The control module 13 can be used to control the switch unit K1 and the switch unit Ka to be turned on, the target input port 111-1 in the plurality of input ports 111, and the target first amplification switch N1-a in the plurality of first amplification switches to be turned on, so that the target first amplification switch N1-a performs one-stage amplification processing on the radio frequency signal received by the target input port 111-1 and outputs.

[0056] As can be seen from Figure 6The first amplification switch with different transconductance is arranged in the amplification input circuit group 11-1, and in the case that the input ports connected by the multi-input LNA 1 are fixed, the control module 13 can control the switch in the amplification input circuit group 11-1 to turn on the first amplification switch with different transconductance for different input ports again, thereby improving the flexibility of adjusting the transconductance when amplifying different radio frequency signals, so that the multi-input LNA 1 provided by the application can be applied to more scenes to realize the first amplification based on different transconductance for different radio frequency signals, and the implementation manner of the embodiment is relatively simple, and the control module 13 only needs to turn on the corresponding switch unit, and has simpler control logic and higher control efficiency.

[0057] Further, the application also provides a multi-input LNA 1 as shown in the Figure 5 In S101, several specific implementation manners of determining the target input port currently used for receiving the radio frequency signal are shown, so that the control module 13 can more accurately determine the target input port, and ensure that the multi-input LNA 1 effectively receives the radio frequency signal through the more accurate target input port. The following will be described respectively.

[0058] In the first possible implementation manner of S101, the control module 13 can specifically determine the input port corresponding to the receiving device of the radio frequency signal connected by the multi-input LNA 1 as the target input port from the plurality of input ports 111.

[0059] Among them, referring to Figure 4 Each input port is connected to a receiving device of a radio frequency signal, and the control module 13 can be used to determine the current radio frequency signal to be received according to the configuration or the indication of other modules, so as to control the corresponding receiving device to receive the radio frequency signal, and correspondingly, the control module 13 determines the input port connected to the current receiving device as the target input port.

[0060] Therefore, in this first implementation manner, the control module 13 can control and determine the corresponding input port based on the receiving device connected by the multi-input LNA 1, which is conducive to the cooperation of the multi-input LNA 1 with other devices of the equipment, and ensures the consistency and effectiveness of the radio frequency signal receiving and processing.

[0061] In the second possible implementation manner of S101, the control module 13 can specifically determine the input port corresponding to the characteristic information of the radio frequency signal to be received by the multi-input LNA 1 as the target input port from the plurality of input ports 111.

[0062] Among them, the characteristic information can be the frequency, bandwidth or waveform of the radio frequency signal. The control module 13 can store the correspondence between different characteristic information and input ports through a mapping relationship. For example,Figure 7 A schematic diagram of the mapping relationship stored in the control module provided in this application is shown below. Figure 7 As shown, the control module 13 can store the correspondence between the characteristic information 1 of the radio frequency signal and the input port 1, the correspondence between the characteristic information 2 of the radio frequency signal and the input port 2, and so on, the correspondence between the characteristic information Z of the radio frequency signal and the input port Z. Therefore, once the control module 13 determines the characteristic information of the radio frequency signal to be received, it can then, according to... Figure 7 The mapping relationship shown determines the corresponding input port as the target input port. For example... Figure 7 The mapping relationships shown can be stored in the control module 13 in the form of tables or the like.

[0063] Therefore, in this second implementation, the control module 13 can determine the corresponding input port based on the characteristic information of the radio frequency signal received by the multi-input LNA1, which is more direct and accurate. Moreover, the method of determining the input port through mapping relationship has higher computational efficiency, making the control method provided in this application more efficient.

[0064] In the third possible implementation of S101, the control module 13 determines the input port corresponding to the characteristic information from multiple input ports 111 as the target input port based on the characteristic information of the radio frequency signal output by the multi-input LNA1.

[0065] Specifically, the control module 13 can switch and adjust the currently active target input port based on the characteristic information of the output radio frequency signal. For example, in conjunction with... Figure 3 In the example shown, when the control module 13 controls the first input port 111-1 in the amplification input circuit group 11-1 as the target input port based on the characteristic information of the current radio frequency signal to be received, and determines that the frequency and other characteristic information of the output radio frequency signal are gradually changing, it determines that the current input port cannot more effectively amplify the radio frequency signal. Therefore, it can re-determine the second input port 111-2 as the target input port and control the target input port to be connected to the amplification module 113. Further exemplarily, combined with... Figure 6 In the example shown, when the control module 13 determines that the amplification effect of the output RF signal is gradually deteriorating, it determines to switch another switching unit to amplify the current RF signal to improve the amplification effect. After controlling each amplification unit to amplify the current RF signal separately, the control module 13 can determine that the switching unit corresponding to the amplification unit with the best amplification effect is turned on, so that the amplification unit amplifies the RF signal.

[0066] Therefore, in this third implementation, the control module 13 can determine the corresponding input port based on the characteristic information of the RF signal output by the multi-input LNA1. Through the feedback and backtracking mechanism, the corresponding input port of the front end is adjusted according to the output result of the back end, thereby ensuring the continuous and accurate reception of the RF signal throughout the entire process. Even if the RF signal changes, the stability and effectiveness of the RF signal output to the back end processor and other modules can be guaranteed without the back end being aware of the adjustment of the RF front end, further ensuring the effective control of the multi-input LNA1.

[0067] In the fourth possible implementation of S101, the control module 13 sequentially uses multiple input ports to receive radio frequency signals, and determines the target input port corresponding to the radio frequency signal to be received based on the radio frequency signal received by each input port after processing by the multi-input LNA.

[0068] In cases where the control module 13 cannot determine which input port to use to receive the RF signal, it can control each input port to be connected to the amplification module 113. Combined with... Figure 4 In the example shown, the control module 13 first controls each input port in the amplification input circuit group 11-1 to be connected to the amplification module 113 as a target input port, and determines the output RF signal RFout corresponding to each input port. Then, it controls each input port in the amplification input circuit group 11-2 to be connected to the amplification module 113 as a target input port, and determines the output RF signal RFout corresponding to each input port. This process continues until, based on the RF signals corresponding to all amplification input circuit groups 11, and according to the signal-to-noise ratio, amplification factor, and other characteristics of the RF signals, the input port corresponding to the RF signal with the best amplification effect is determined as the target input port. Thus, the control module 13 controls the switching unit corresponding to the target input port to be turned on.

[0069] Therefore, in this fourth implementation, the control module 13 can autonomously select the current optimal input port as the target input port when the target input port cannot be determined. This improves the method executed by the control module 13 and the intelligence level of the multi-input LNA1 while ensuring normal reception and processing of radio frequency signals.

[0070] In the fifth possible implementation of S101, the control module 13 can also re-determine the target input port for receiving radio frequency signals among the multiple input ports when the previous target input port is connected to the amplification module 113. Thus, when the radio frequency signal changes, the control module 13 can autonomously and intelligently switch the input ports to meet different operating scenarios, further enriching the application scenarios of the multi-input LNA1.

[0071] Figure 8 A schematic diagram of the circuit structure of an embodiment of the multi-input LNA provided in this application is shown below. Figure 8 The multi-input LNA shown is in Figure 4 Based on the embodiment shown, it also includes a storage module 14, which can be used to store radio frequency signals. The storage module 14 can be a disk, film, delay unit, etc.

[0072] When the target input port is connected to the amplification module 113, the control module 13 can control the selection module 112 to connect at least one alternative input port among the multiple input ports 111 to the storage module 14, allowing the storage module 14 to store the alternative RF signal received by at least one alternative input port. Subsequently, when the amplification module 113 outputs an RF signal, the control module 13 connects the storage module 14 to the amplification module 113, causing the amplification module 113 to perform a first-stage amplification of the at least one alternative RF signal stored in the storage module 14 and then output it.

[0073] For example, combined Figure 8 As shown, when the control module 13 controls the first input port 111-1 in the amplification input circuit group 11-1 to be connected to the amplification module 113 as the target input port, it can also control the second input port 111-2 to be connected to the storage module 14. At this time, the RF signal received by the first input port 111-1 can be processed by the amplification module 113, and the processed RF signal RFout is output by the multi-input LNA1. At the same time, the alternative RF signal received by the second input port 111-2 is stored by the storage module 14. This enables the multi-input LNA1 to receive multiple RF signals simultaneously. Subsequently, after the multi-input LNA1 outputs the amplified RF signal based on the first RF signal, the control module 13 controls the storage module 14 to be connected to the amplification module 113 and controls all switching units to be disconnected, so that the amplification module 113 amplifies and outputs the alternative RF signals stored in the storage module, and finally the processed RF signal RFout is output by the multi-input LNA1.

[0074] It can be seen that, through Figure 8The multi-input LNA1 and its control method shown enable the multi-input LNA1 to simultaneously receive multiple radio frequency (RF) signals and process them separately. This avoids the situation where receiving one RF signal compromises the reception of another, ensuring the effectiveness of the multi-input LNA1's RF signal processing and further enriching its application scenarios. Moreover, in this embodiment, the processing of multiple RF signals is pre-stored at the RF front-end. For the modules or devices connected to the back-end of the multi-input LNA1, no hardware or software changes are required, effectively avoiding modifications to the hardware and software of the device itself. In practical applications, only corresponding settings at the front-end are needed to process multiple RF signals, effectively reducing the research and development costs of the device containing the multi-input LNA1.

[0075] In one embodiment, based on the multi-input LNA1 provided in this application, the control module 13 can also be used to control the gating module 112 with a preset duty cycle within a preset period, so that multiple target input ports among the multiple input ports 111 are sequentially connected to the amplification module 113, so that the amplification module 113 sequentially performs first-level amplification processing on the radio frequency signals received by the multiple target ports and outputs them.

[0076] For example, if the preset period T is denoted as t1-t3 and the duty cycle is 50%, then the first half of the preset period T is t1-t2 and the second half is t2-t3. The control module 13 can control the first input port 111-1 in the amplification input circuit group 11-1 to be turned on as the target input port and connected to the amplification module 113 during the first half of the preset period T, t1-t2. At this time, the multi-input LNA1 amplifies and outputs based on the first input port 111-1. During the second half of the preset period T, t2-t3, the control module 13 controls the second input port 111-2 in the amplification input circuit group 11-1 to be turned on as the target input port and connected to the amplification module 113. At this time, the multi-input LNA1 amplifies and outputs based on the second input port 111-2.

[0077] As can be seen, the control method for the multi-input LNA1 provided in this embodiment enables the multi-input LNA1 to simultaneously receive multiple radio frequency (RF) signals, achieving simultaneous reception and amplification of multiple RF signals. Through parallel processing, multiple RF signals are received simultaneously, amplified, and output separately. At this time, other backend processing modules need to restore the RF signals output by the multi-input LNA1 according to the same period to distinguish between different RF signals. It is understandable that, to make the RF signals output by the multi-input LNA1 more consistent with the original RF signals, the preset period T can be set to be relatively small, allowing the control module 13 to switch the target input port more frequently. Furthermore, this embodiment does not require any hardware changes to the multi-input LNA1 when achieving synchronous reception and processing of multiple RF signals; only software settings are needed. This effectively reduces the design and implementation cost of the multi-input LNA1, making it more suitable for widespread application.

[0078] In the foregoing embodiments of this application, the control method for a multi-input LNA provided by the embodiments of this application has been described. To implement the functions of the methods provided by the embodiments of this application, the control module, as the execution entity, can be implemented through hardware structures and / or software modules, for example, in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is executed through hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0079] For example, this application provides a control device for a multi-input LNA, which can be used to control the multi-input LNA provided in any of the foregoing embodiments of this application. The control device includes a determining module and a control module. The determining module is used to determine a target input port among multiple input ports for receiving radio frequency signals. The control module is used to control a gating module to connect the target input port to an amplification module, so that the amplification module performs a first-stage amplification of the radio frequency signal received at the target input port and outputs it. Furthermore, the control module can also perform other controls on the gating module, switching unit, amplification switch, etc. The specific method and principle of the control device provided in this application for controlling the multi-input LNA are the same as the control method provided in the foregoing embodiments, and will not be repeated here.

[0080] It should be understood that the division of the various modules in the above device is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing element calls; they can be fully implemented in hardware; or some modules can be implemented by processing element calls to software, while others are implemented in hardware. For example, a processing module can be a separate processing element, or it can be integrated into a chip within the above device. Alternatively, it can be stored as program code in the memory of the above device, and its functions can be called and executed by a processing element of the device. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned 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 through integrated logic circuits in the hardware of the processor element or through software instructions.

[0081] For example, these 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). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together to implement a system-on-a-chip (SOC).

[0082] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0083] For example, Figure 9 A schematic diagram of the structure of an electronic device provided in this application, such as... Figure 9 The device shown can be used to execute the control method of a multi-input LNA provided in any embodiment of this application. In one embodiment, such as Figure 9 The illustrated electronic device 1000 includes one or more processors 1001 and a memory 1002. The memory 1002 stores computer-executable instructions, and the processor 1001 can execute the computer-executable instructions stored in the memory 1002. When the computer-executable instructions are executed by the processor 1001, the processor 1001 implements any of the control methods of a multi-input LNA as described in the foregoing embodiments of this application. In one embodiment, such as... Figure 9 The electronic device 1000 shown also includes a communication interface 1003, through which the processor 1001 can communicate with other devices or modules.

[0084] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0085] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0086] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0087] This application also provides a chip for executing instructions, the chip being used to execute any of the control methods of a multi-input LNA as described above in this application.

[0088] This application also provides a computer program product, including a computer program that, when executed, implements any of the control methods of the multi-input LNA described above.

[0089] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed, can be used to implement any of the control methods of a multi-input LNA as described in the foregoing embodiments of this application.

[0090] The aforementioned 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 readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0091] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0092] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0093] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0094] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0095] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0096] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0097] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A control method for a multi-input LNA, characterized in that, The multi-input LNA includes: at least one amplifying input circuit group, and amplifying output circuits respectively connected to the at least one amplifying input circuit group. The amplifying input circuit group is used to perform a first-stage amplification of the received radio frequency signal and output it to the amplifying output circuit. The amplifying output circuit is used to perform a second-stage amplification of the radio frequency signal and output it. The amplifying input circuit group includes: multiple input ports, a gating module respectively connected to the multiple input ports, and an amplifying module connected to the gating module. The multiple input ports are respectively used to receive corresponding radio frequency signals, and the amplifying module is used to perform a first-stage amplification of the received radio frequency signal and output it. The control method includes: Determine the target input port among the plurality of input ports for receiving radio frequency signals; The selection module is controlled to connect the target input port to the amplification module, so that the amplification module amplifies the radio frequency signal received at the target input port and outputs it.

2. The control method according to claim 1, characterized in that, The gating module includes: a plurality of switch units corresponding one-to-one with the plurality of input ports; The control of the gating module to connect the target input port to the amplification module includes: The switch unit corresponding to the target input port among the plurality of switch units is turned on, and the other switch units among the plurality of switch units are turned off.

3. The control method according to claim 2, characterized in that, After controlling the gating module to connect the target input port to the amplification module, the method further includes: If the instantaneous current value at the target input port exceeds a preset threshold, the switching unit corresponding to the target input port is controlled to disconnect to protect the devices in the multi-input LNA.

4. The control method according to claim 3, characterized in that, The amplification module includes: a plurality of first amplification switches, wherein the plurality of first amplification switches have different transconductances; the control method further includes: Determine the target first amplification switch required for the target signal among the plurality of first amplification switches; The target input port is controlled to be connected to the target first amplification switch, so that the target first amplification switch amplifies the radio frequency signal received by the target input port by one stage and outputs it.

5. The control method according to any one of claims 1-4, characterized in that, The step of determining the target input port for receiving radio frequency signals among the plurality of input ports includes: Determine the target input port corresponding to the radio frequency signal receiving device connected to the multi-input LNA; Alternatively, determine the target input port corresponding to the characteristic information of the radio frequency signal to be received by the multi-input LNA; Alternatively, determine the target input port corresponding to the characteristic information of the radio frequency signal output by the multi-input LNA; Alternatively, the multiple input ports can be used sequentially to receive the radio frequency signals, and the target input port corresponding to the radio frequency signals can be determined based on the radio frequency signals received by each input port after processing by the multi-input LNA. Alternatively, if the previous target input port among the plurality of input ports is connected to the amplification module, the target input port for receiving radio frequency signals among the plurality of input ports is re-determined.

6. The control method according to any one of claims 1-4, characterized in that, The control method further includes: when the target input port is connected to the amplification module, controlling the gating module to connect at least one alternative input port among the multiple input ports to the storage module, so that the storage module stores the alternative radio frequency signals received by the at least one alternative input port; when the amplification module outputs a radio frequency signal, controlling the storage module to connect to the amplification module, so that the amplification module performs a first-stage amplification processing on the at least one alternative radio frequency signal and outputs it; and / or, The control method further includes: controlling the gating module with a preset duty cycle within a preset period, so that multiple target input ports among the multiple input ports are sequentially connected to the amplification module, so that the amplification module sequentially performs first-stage amplification processing on the radio frequency signals received by the multiple target ports and outputs them.

7. A control device for a multi-input LNA, characterized in that, The multi-input LNA includes: at least one amplifying input circuit group, and amplifying output circuits respectively connected to the at least one amplifying input circuit group. The amplifying input circuit group is used to perform a first-stage amplification of the received radio frequency signal and output it to the amplifying output circuit. The amplifying output circuit is used to perform a second-stage amplification of the radio frequency signal and output it. The amplifying input circuit group includes: multiple input ports, a gating module respectively connected to the multiple input ports, and an amplifying module connected to the gating module. The multiple input ports are respectively used to receive corresponding radio frequency signals, and the amplifying module is used to perform a first-stage amplification of the received radio frequency signal and output it. The control device includes: The determining module is used to determine the target input port for receiving radio frequency signals among the plurality of input ports; The control module is used to control the gating module to connect the target input port to the amplification module, so that the amplification module performs a first-stage amplification of the radio frequency signal received at the target input port and outputs it.

8. An electronic device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1-6.

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

10. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method as described in any one of claims 1-6.

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