Electronic device

Abstract

The invention relates to an electronic device. The electronic equipment comprises a control device, a power supply device, a low-noise amplifier and a power amplifier. The control device is used for determining a first power supply voltage currently required by the low-noise amplifier during downlink communication of the electronic equipment, generating a first power supply instruction based on the first power supply voltage and sending the first power supply instruction to the power supply device; the processor is also used for determining a second power supply voltage currently required by the power amplifier during uplink communication of the electronic equipment, generating a second power supply instruction based on the second power supply voltage and sending the second power supply instruction to the power supply device; the power supply device is used for supplying power to the low-noise amplifier according to the first power supply voltage under the condition that the first power supply instruction is received; and the power supply module is also used for supplying power to the power amplifier according to the second power supply voltage under the condition of receiving the second power supply instruction. By adopting the electronic equipment, the communication power consumption of the electronic equipment can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art

[0002] An RF front-end module is provided in the electronic device, and the components in the RF front-end module process the transmitted and received signals to ensure the communication quality of the electronic device. For example, the transmitted signal is processed by the power amplifier in the RF front-end module, and the received signal is processed by the low-noise amplifier in the RF front-end module. In order to ensure that the signal processing quality of the components meets the requirements, the electronic device needs to ensure that the power supply voltage of components such as the power amplifier and the low-noise amplifier meets the corresponding conditions.

[0003] In the related art, a constant voltage is used to power the low noise amplifier, which results in higher power consumption and cost of the electronic device. Summary of the invention

[0004] Based on this, it is necessary to provide an electronic device that can reduce the power consumption of the electronic device during communication in order to solve the above technical problems.

[0005] The present application provides an electronic device, which includes a control device, a power supply device, a low-noise amplifier and a power amplifier; the control device is used to determine a first power supply voltage currently required by the low-noise amplifier when the electronic device is communicating downlink, generate a first power supply instruction based on the first power supply voltage, and send the first power supply instruction to the power supply device; it is also used to determine a second power supply voltage currently required by the power amplifier when the electronic device is communicating uplink, generate a second power supply instruction based on the second power supply voltage, and send the second power supply instruction to the power supply device; the power supply device is used to supply power to the low-noise amplifier according to the first power supply voltage when receiving the first power supply instruction; it is also used to supply power to the power amplifier according to the second power supply voltage when receiving the second power supply instruction.

[0006] The electronic device includes a control device, a power supply device, a low-noise amplifier and a power amplifier; the control device is used to determine the first power supply voltage currently required by the low-noise amplifier when the electronic device is communicating downlink, generate a first power supply instruction based on the first power supply voltage, and send the first power supply instruction to the power supply device; it is also used to determine the second power supply voltage currently required by the power amplifier when the electronic device is communicating uplink, generate a second power supply instruction based on the second power supply voltage, and send the second power supply instruction to the power supply device; the power supply device is used to supply power to the low-noise amplifier according to the first power supply voltage when the first power supply instruction is received; it is also used to supply power to the power amplifier according to the second power supply voltage when the second power supply instruction is received, so that the low-noise amplifier can be powered in real time according to the first power supply voltage currently required by the low-noise amplifier, and there will be no over-powering, etc., so the power consumption during downlink communication can be effectively reduced. In addition, by multiplexing the power supply device that powers the power amplifier to also power the low-noise power amplifier, there is no need to provide an additional constant voltage power supply device to power the low-noise amplifier, thereby reducing the power supply cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0008] Figure 1 is a schematic diagram of a power supply method of an LNA in one embodiment;

[0009] Figure 2 is a schematic diagram of the structure of an electronic device in one embodiment;

[0010] Figure 3 A schematic diagram of power supply curve comparison in one embodiment;

[0011] Figure 4 is a schematic structural diagram of another electronic device in one embodiment;

[0012] Figure 5 A schematic diagram of a control timing sequence in an embodiment;

[0013] Figure 6 is a schematic structural diagram of another electronic device in one embodiment;

[0014] Figure 7 is a schematic structural diagram of another electronic device in one embodiment;

[0015] Figure 8is a schematic structural diagram of a radio frequency module in an embodiment;

[0016] Fig. 9 is a schematic diagram of the internal structure of a power supply device in one embodiment;

[0017] Fig.10 A schematic diagram of power consumption comparison in an embodiment;

[0018] Fig.11 is a schematic structural diagram of another electronic device in one embodiment;

[0019] Fig.12 is a schematic structural diagram of another electronic device in one embodiment;

[0020] Fig.13 is a schematic structural diagram of another electronic device in one embodiment;

[0021] Fig.14 is a schematic structural diagram of another electronic device in one embodiment;

[0022] Fig.15 FIG. 4 is a diagram showing the internal structure of an electronic device in one embodiment. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that many specific details are set forth in the following description to facilitate a full understanding of the present application, but the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0030] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0031] The RF link of electronic devices such as mobile phones is equipped with PA (Power Amplifier), switches, LNA (Low Noise Amplifier), logic units, filters, duplexers and other devices. These devices are combined to form a signal transmission link and a signal reception link. For example, PA is set on the signal transmission link and LNA is set on the signal reception link. The external power supply is mainly used to power PA, LNA, switches and logic units. Please refer to Figure 1 The schematic diagram of the current power supply method of LNA is shown. When the electronic device communicates downlink, the signal receiving link receives the downlink communication signal, and the downlink communication signal is processed by LNA. At this time, the external power supply supplies power to the LNA through a constant voltage. This means that when the LNA works at different gain levels (corresponding to strong signals or weak signals), the power supply voltage of the LNA is a constant value, and in order to meet different gain levels, the power supply voltage is usually large, which may lead to a situation: at a lower gain level, a larger constant voltage is still used to power the LNA. However, in fact, at a lower gain level, the LNA can work at a lower power supply voltage, so the constant voltage power supply will cause the electronic device to consume a lot of power when receiving communication. In addition, this requires a dedicated constant voltage power supply to power the LNA, resulting in higher costs.

[0032] In view of this, an embodiment of the present application provides an electronic device, which can reduce the power consumption and power supply cost of the electronic device during downlink communication.

[0033] Please refer to Figure 2, which shows a structural schematic diagram of an electronic device, the electronic device includes a control device, a power supply device, a low-noise amplifier and a power amplifier; the control device is used to determine the first power supply voltage currently required by the low-noise amplifier when the electronic device is communicating downlink, generate a first power supply instruction based on the first power supply voltage, and send the first power supply instruction to the power supply device; it is also used to determine the second power supply voltage currently required by the power amplifier when the electronic device is communicating uplink, generate a second power supply instruction based on the second power supply voltage, and send the second power supply instruction to the power supply device; the power supply device is used to supply power to the low-noise amplifier according to the first power supply voltage when receiving the first power supply instruction; it is also used to supply power to the power amplifier according to the second power supply voltage when receiving the second power supply instruction.

[0034] Among them, electronic devices can be, but are not limited to, various personal computers, laptops, smart phones, tablet computers, Internet of Things devices and portable wearable devices. Internet of Things devices can be smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. Head-mounted devices can be virtual reality (VR) devices, augmented reality (AR) devices, smart glasses, etc. Smart phones can be conventional mobile phones with straight screen designs or new forms of foldable mobile phones. Foldable mobile phones have a main screen and a secondary screen. As the main screen and the secondary screen are folded and unfolded, the foldable mobile phone can also be in a folded state or an unfolded state. Of course, electronic devices can also be other communication devices, which are not fully exemplified here.

[0035] The control device is connected to the power supply device, the low noise amplifier LNA and the power amplifier PA. The power supply device is connected to the low noise amplifier and the power amplifier.

[0036] Optionally, the control device may be an MCU (Micro Controller Unit), an MPU (Micro Processor Unit), an FPGA (Field Programmable Gate Array), a CPU (Central Processing Unit), or the like.

[0037] Take the control device as an example, MCU, also known as single chip microcomputer or single chip microcomputer, which appropriately reduces the frequency and specifications of CPU (Central Process Unit), and simply integrates peripheral interfaces such as memory, counter, USB (Universal Serial Bus), A / D (Analog to Digital) conversion, UART (Universal Asynchronous Receiver / Transmitter), PLC (Programmable logic Controller), DMA (Direct Memory Access), etc. The processing chip can be applied to certain specific scenarios. The controller mainly includes a storage unit, a calculation unit, an input control interface and an output control interface. The storage unit is mainly used to store controller instructions and other related firmware programs. The calculation unit is mainly used to process input instructions and convert them into output instructions for autonomous control. The input control interface is mainly connected to the previous AP or used for instruction input, etc. The output control interface is mainly used to output the instructions processed by the calculation unit to the next unit.

[0038] Optionally, the low noise amplifier LNA may be one or more. Optionally, the power amplifier PA may be one or more. In other words, the power supply device is multiplexed to power one low noise amplifier and one power amplifier, or multiple low noise amplifiers and multiple power amplifiers.

[0039] The low noise amplifier and the power amplifier do not work at the same time. When powering multiple low noise amplifiers and multiple power amplifiers, some or all of the low noise amplifiers can work at the same time, and some or all of the power amplifiers can work at the same time.

[0040] It can be understood that the LNA is set on the signal receiving link and the PA is set on the signal sending link. The electronic device may also include an antenna. During downlink communication, the downlink communication signal received by the antenna is transmitted to the LNA via the signal receiving link. The LNA amplifies the downlink communication signal, and the amplified downlink communication signal is further transmitted to the receiver. During uplink communication, the uplink communication signal output by the receiver is transmitted to the PA via the signal sending link, and the uplink communication signal after power amplification by the PA is further transmitted to the antenna and transmitted.

[0041] Optionally, the power supply device is a power supply IC, which may include a DCDC (direct current to direct current converter, DC-to-DC converter).

[0042] In an embodiment of the present application, during downlink communication, the control device determines the first power supply voltage currently required by the low noise amplifier, and sends a first power supply instruction to the power supply device, so that the power supply device uses the first power supply voltage to power the LNA when receiving the first power supply instruction. Optionally, the first power supply instruction may include the first power supply voltage, and the power supply device may identify the first power supply voltage in the first power supply instruction. During uplink communication, the control device determines the second power supply voltage currently required by the power amplifier, and sends a second power supply instruction to the power supply device, so that the power supply device uses the second power supply voltage to power the PA when receiving the second power supply instruction. Here, the uplink communication and downlink communication of the electronic device are not performed at the same time, so the power supply device can supply power to the LNA and PA respectively at different stages. In this way, on the one hand, only the power supply device needs to be set in the electronic device to realize power supply for both the LNA and the PA; on the other hand, because the control device determines the first power supply voltage currently required by the low noise amplifier, that is, at different downlink communication moments, if the first power supply voltage required by the low noise amplifier is different, different first power supply voltages can be provided, and they are all provided according to the needs of the low noise amplifier, without over-powering or under-powering, which is equivalent to powering the LNA in APT (Average Power Tracking) mode, thereby saving power consumption and ensuring the normal operation of the LNA. For example, Figure 3 A schematic diagram comparing power supply curves of powering the LNA with a constant voltage and powering the LNA with an APT mode is shown. It can be seen that, compared with the conventional technology, the first power supply voltage of the embodiment of the present application is significantly reduced, thereby reducing the receiving power consumption.

[0043] The electronic device includes a control device, a power supply device, a low-noise amplifier and a power amplifier; the control device is used to determine the first power supply voltage currently required by the low-noise amplifier when the electronic device is communicating downlink, generate a first power supply instruction based on the first power supply voltage, and send the first power supply instruction to the power supply device; it is also used to determine the second power supply voltage currently required by the power amplifier when the electronic device is communicating uplink, generate a second power supply instruction based on the second power supply voltage, and send the second power supply instruction to the power supply device; the power supply device is used to supply power to the low-noise amplifier according to the first power supply voltage when the first power supply instruction is received; it is also used to supply power to the power amplifier according to the second power supply voltage when the second power supply instruction is received, so that the low-noise amplifier can be powered in real time according to the first power supply voltage currently required by the low-noise amplifier, and there will be no over-powering, etc., so the power consumption during downlink communication can be effectively reduced. In addition, by multiplexing the power supply device that powers the power amplifier to also power the low-noise power amplifier, there is no need to provide an additional constant voltage power supply device to power the low-noise amplifier, thereby reducing the power supply cost.

[0044] In one embodiment, the communication mode of the electronic device is a TDD (Time Division Duplexing) mode.

[0045] Among them, TDD mode is a duplex communication mode in the communication system, which is used to separate the receiving and transmitting channels in different time slots of the same frequency channel. This mode has been widely used in modern mobile communication systems, especially in the third and fourth generation mobile communication standards. The TDD mode is based on time division. The basic principle is: by allocating uplink and downlink in different time periods, the transmission and reception processes can be carried out alternately on the same frequency band. This method effectively avoids interference between uplink and downlink signals.

[0046] Based on this, when the electronic device operates in the TDD mode, since the LNA and the PA do not operate at the same time, the power supply device can be reused to power the LNA during uplink communication and to power the PA during downlink communication.

[0047] In the embodiment of the present application, taking into account the time gap between transmission and reception in the TDD mode, that is, the transmission and reception processes will not occur at the same time, the gap between transmission and reception is fully utilized, the power supply device is reused, and the same power supply device is used to provide different voltages to different devices at different times to meet the low power consumption requirements.

[0048] In one embodiment, Figure 4 The structural diagram of the electronic device shown in the figure, the electronic device also includes a receiver connected to the low noise amplifier, the power amplifier and the control device. The receiver is used to control the low noise amplifier to turn on during the start-up phase of the downlink communication, and control the control device to send a first power supply instruction to the power supply device after the first buffer cycle. The receiver is also used to control the control device to send a first stop instruction to the power supply device during the shutdown phase of the downlink communication, and the first stop instruction is used to instruct the power supply device to stop supplying power to the low noise amplifier; and control the low noise amplifier to turn off after the second buffer cycle.

[0049] Generally, the working of PA and LNA is very different. For example, PA generally requires a larger power supply voltage, while LNA requires a smaller power supply voltage. Therefore, when switching uplink and downlink communications, the power supply switching of PA and LNA needs to be performed in a preset time sequence.

[0050] like Figure 5The control timing diagram of each device is shown. During downlink communication, that is, the electronic device is in the receiving cycle, the receiver first controls the LNA to turn on, and the PA is turned on before the power supply device (PA is completely turned off at this time). After waiting for the first buffer cycle, the control device sends a first power supply instruction to the power supply device. The power supply device receives the first power supply instruction and starts to supply power to the LNA. At this time, the power supply is provided according to the working state of the LNA. In the closing stage of downlink communication, that is, when the receiving cycle is about to end, the control device sends a first stop instruction to the power supply device. After receiving the first stop instruction, the power supply device stops supplying power to the LNA. After the second buffer cycle, the receiver controls the LNA to turn off.

[0051] In one embodiment, the receiver is used to control the power amplifier to turn on during the start-up phase of the uplink communication, and to control the control device to send a second power supply instruction to the power supply device after a third buffer cycle; the receiver is also used to control the control device to send a second stop instruction to the power supply device during the shut-down phase of the uplink communication, and the second stop instruction is used to instruct the power supply device to stop supplying power to the power amplifier; and to control the power amplifier to turn off after a fourth buffer cycle.

[0052] Continue to refer Figure 5 As shown, during uplink communication, that is, the electronic device is in the transmission cycle, the receiver first controls the PA to turn on, and the PA turns on before the power supply device (at this time, the LNA is completely turned off). After waiting for the third buffer cycle, the control device sends a second power supply instruction to the power supply device, and the power supply device receives the second power supply instruction and starts to supply power to the PA. At this time, the power supply is supplied according to the working state of the PA. In the shutdown stage of the uplink communication, that is, when the transmission cycle is about to end, the control device sends a second stop instruction to the power supply device, and the power supply device stops supplying power to the PA after receiving the second stop instruction. After the fourth buffer cycle, the receiver controls the PA to turn off.

[0053] Optionally, the duration of each buffer period can be predetermined and stored in the receiver, and the receiver reads and controls other components based thereon. Exemplarily, the duration of each buffer period can be predetermined based on the operating performance of the LNA and the PA.

[0054] In the embodiment of the present application, the key technology of the multiplexed power supply device is to open the transmission cycle and the receiving cycle in time-sharing. By setting the first buffer period, it is ensured that the LNA is fully opened before the LNA is powered, that is, the first buffer period is reserved for the LNA to be fully opened, and then the LNA is powered, which avoids the situation where the LNA is not fully opened but the power supply has been started, resulting in power consumption waste. Similarly, at the end of the receiving cycle, the power supply is terminated in advance, and then the second buffer period is reserved for the LNA to be turned off, which avoids the situation where the LNA has been turned off but the power supply has not stopped, resulting in power consumption waste. The third buffer period and the fourth buffer period also help electronic devices avoid power consumption waste during the transmission cycle. Moreover, through such a timing, it is ensured that the power supply device powers the LNA and PA in time-sharing, ensuring that the power supply of both is normal.

[0055] In one embodiment, the control device is used to determine the first gain level currently required by the low noise amplifier when the electronic device is communicating downlink, and determine the first supply voltage according to the first gain level. The control device is also used to determine the second gain level currently required by the power amplifier when the electronic device is communicating uplink, and determine the second supply voltage according to the second gain level.

[0056] That is, one gain level corresponds to one supply voltage. When LNA and PA process different signals at different gain levels, the required supply voltages are different. Therefore, the control device needs to determine the first gain level required by the LNA (and the second gain level required by the PA), and then determine the first supply voltage currently required by the LNA (the second supply voltage required by the PA).

[0057] In an optional implementation manner, the control device may obtain the signal strength of the received signal output by the low noise amplifier, and determine the first gain level according to the signal strength of the received signal.

[0058] In another optional implementation, the control device obtains the first gain level sent by the receiver. Exemplarily, the receiver is used to determine the signal strength of the received signal output by the low noise amplifier received by the receiver during downlink communication of the electronic device, determine the first gain level according to the signal strength of the received signal, and send the first gain level to the control device.

[0059] In summary, the electronic device can determine the first gain level according to the signal strength of the received signal output by the low noise amplifier, and determine the first supply voltage according to the first gain level.

[0060] In addition, similarly, when the electronic device communicates uplink, the receiver can determine the signal strength of the transmission signal output by the receiver, determine the second gain level according to the signal strength of the transmission signal, and send the second gain level to the control device.

[0061] With respect to the process of downlink communication, the process of determining the first power supply voltage is exemplarily described:

[0062] The receiver searches for the LNA gain level corresponding to the signal strength in the mapping relationship between the pre-configured signal strength interval and the LNA gain level according to the signal strength, that is, the first gain level. For example, the mapping relationship between the signal strength interval and the LNA gain level can be shown in Table 1:

[0063] (Table 1)

[0064]

[0065] For example, when the signal strength is determined to be -70 dBm, the first gain level determined at this time is G2.

[0066] It should be noted that Table 1 is only an exemplary mapping relationship between signal strength intervals and LNA gain levels. In actual implementation, the mapping relationship between signal strength and LNA gain level can be flexibly adjusted as needed.

[0067] Further, the control device receives the first gain level and can search for the power supply voltage corresponding to the first gain level, i.e., the first power supply voltage, in the mapping relationship between the preset LNA gain level and the power supply voltage according to the first gain level. The mapping relationship includes the corresponding relationship between each LNA gain level and each power supply voltage. Exemplarily, the magnitude of the gain level is positively correlated with the magnitude of the power supply voltage, i.e., a high gain level corresponds to a high power supply voltage, and a low gain level corresponds to a low power supply voltage.

[0068] Exemplarily, the mapping relationship between the LNA gain level and the supply voltage may be as shown in Table 2:

[0069] (Table 2)

[0070]

[0071] For example, when it is determined that the first gain level is G2, it is determined that the first power supply voltage is 1.2V, and the control device controls the power supply device to supply a voltage of 1.2V to the LNA.

[0072] It should be noted that Table 2 is only an exemplary mapping relationship between the LNA gain level and the power supply voltage. In actual implementation, the mapping relationship between the LNA gain level and the power supply voltage can be flexibly adjusted as needed.

[0073] It can be understood that the first supply voltage is an operating voltage that can satisfy the low noise amplifier to amplify the received signal according to the first gain level, thereby saving power consumption while ensuring the normal operation of the low noise amplifier.

[0074] In one embodiment, the control device is further used to control the low noise amplifier to operate at a first gain level when the electronic device is communicating downlink; and to control the power amplifier to operate at a second gain level when the electronic device is communicating uplink.

[0075] That is, the control device controls the gain level of the LNA and the PA on the one hand, and controls the supply voltage of the LNA and the PA on the other hand, to ensure the matching of the gain level and the supply voltage.

[0076] In one embodiment, as mentioned above, the electronic device also includes an antenna. In addition, the electronic device may also include an AP chip, which is connected to the control device and the receiver respectively. The AP chip is used to control the control device and the receiver to synchronously perform a preset operation, and the preset operation includes at least one of an on operation, a off operation, a reset operation, and a reset operation. Exemplarily, the AP chip can control the control device and the receiver to synchronously perform an on operation, a off operation, a reset operation, and a reset operation. In this way, the basic operations of the control device and the receiver are synchronized, and the control device can flexibly control the first supply voltage of the low-noise amplifier module according to the first gain level sent by the receiver. Please refer to Figure 6 The structural diagram of the electronic device shown in the figure, here, when the electronic device is in downlink communication, the received signal received by the antenna is amplified by the LNA and then returned to the receiver; the receiver can identify the LNA gain level (i.e., the first gain level) corresponding to the signal strength of the current received signal, and the MCU determines the first power supply voltage corresponding to the first gain level, and controls the power supply device to output the corresponding first power supply voltage to the LNA by outputting the first power supply instruction to ensure that it works at the first gain level. The AP and MCU mainly perform basic operations such as opening, closing, resetting and resetting. It should be noted that Figure 6 The PA is not shown.

[0077] In an optional implementation, Figure 7 The structural diagram of the electronic device shown in the figure, the electronic device also includes a radio frequency module, the low noise amplifier is arranged in the radio frequency module; the control device is connected to the power supply device, and the control device is connected to the low noise amplifier through the first connection port of the radio frequency module and connected to the power amplifier through the second connection port of the radio frequency module. The power supply device is used to connect to the low noise amplifier through the first power supply port of the radio frequency module and to the power amplifier through the second power supply port of the radio frequency module. For example, Figure 8A structural schematic diagram of a radio frequency module is shown. The radio frequency module is L-PAMid, which belongs to the current typical integrated radio frequency front-end module solution architecture. It mainly includes PA, switches, LNA, filters, duplexers and other devices. The PAs include PA for MB band, PA for B7 band and PA for HB band, etc., and there are also multiple LNAs.

[0078] For example, Figure 7 The RF module includes an LNA and a PA. The RF module can send the received signal processed by the LNA to the receiver. The receiver determines the signal strength of the received signal. Then, the receiver determines the first gain level required to be set for the LNA according to the signal strength. The receiver sends the first gain level to the control device, and the control device is connected to the control end of the power supply device. For example, see Fig. 9 , shows a schematic diagram of the internal structure of a power supply device, the control device can be connected to the SLC (Serial Clock Line) end of the power supply device, after the control device determines the first power supply voltage of the LNA according to the first gain level, the first power supply instruction corresponding to the first power supply voltage is sent to the SLC end of the power supply device, and the voltage output end (VOUT) of the power supply device is connected to the first power supply port of the RF module, so that the power supply device outputs the first power supply voltage through the first power supply port to power the LNA.

[0079] Continue to refer Figure 7 The control device is also connected to the RF module to control the gain level of the LNA. Exemplarily, during downlink communication, the control device generates a low noise amplifier control instruction according to the first gain level, and sends the low noise amplifier control instruction to the LNA through the first connection port. The low noise amplifier control instruction can be used to instruct the LNA to amplify the received signal received by the LNA according to the first gain level, that is, the power supply device outputs the first power supply voltage to power the LNA in the RF module, and the LNA works according to the low noise amplifier control instruction sent by the control device. Exemplarily, the control device can send instructions to the RF module and the power supply device through the MIPI (Mobile Industry Processor Interface) interface.

[0080] Optionally, during uplink communication, taking the control device as MCU as an example, the receiver directly sends the corresponding second power supply instruction and power amplifier control instruction to the power supply device and PA through the bypass path of the MCU. The power amplifier control instruction can be used to instruct the PA to operate at the corresponding gain level.

[0081] In the embodiment of the present application, the current signal strength and the gain level currently used by the LNA are detected and identified to dynamically adjust the power supply voltage currently required by the LNA. The power supply voltage required by the PA can also be dynamically adjusted to achieve the reuse of the power supply device, maintaining the competitiveness of the electronic device while taking into account cost benefits. Since different power supply voltages can be regulated according to different signal strengths to achieve the purpose of saving power, for the entire electronic device, the process of receiving signals actually occupies a large proportion of the time. Therefore, different LNA power supply voltages are regulated according to different signal strength levels. Compared with the original constant voltage method, this refined control can be more conducive to saving power consumption. Figure 7 The scheme shown, such as Fig.10 A schematic diagram showing a comparison of power consumption when a constant voltage is used to power the LNA and a dynamic first power supply voltage provided in an embodiment of the present application is used to power the low noise amplifier module. Fig.10 The horizontal axis is time and the vertical axis is voltage. Fig.10 The area difference (i.e., the area difference obtained by subtracting the area difference obtained by multiplying the constant voltage and time in the conventional technology from the area difference obtained by multiplying the dynamic first power supply voltage and time in the embodiment of the present application) Fig.10 The oblique line portion shown) is the power consumption benefit brought by the embodiment of the present application.

[0082] It is understandable that the above description is for the power supply of a single LNA and PA, and the power supply method in the embodiment of the present application can also be used for electronic devices with multiple LNAs. For example, since the communication process of the electronic device may involve multiple frequency bands working simultaneously, such as a downlink CA (Carrier Aggregation) scenario, there may be a scenario where multiple LNAs work simultaneously. The process of powering multiple LNAs is described below.

[0083] In one embodiment, Fig.11 The electronic device shown in the figure includes a plurality of low noise amplifiers; the control device is connected to each low noise amplifier for controlling each low noise amplifier to operate at a first gain level and sending a first power supply instruction to the power supply device when the electronic device is communicating downlink; the power supply device is connected to each low noise amplifier for supplying power to each low noise amplifier according to a first power supply voltage under the control of the first power supply instruction. It should be noted that Fig.11 Only two LNAs are used as an example, and actually more than two LNAs may be included, and no specific limitation is made here. In addition, when the LNA is working, the PA is not working.

[0084] Optionally, the frequency bands supported by the low noise amplifiers may be different, or may be partially the same or completely the same, and no specific limitation is made here.

[0085] Optionally, the receiver determines the first gain level required for each LNA to work according to the signal strength of the received signal received by each LNA, and sends it to the control device. The control device determines the first power supply voltage according to the maximum gain level among the first gain levels, that is, the control device selects the maximum gain level, or the highest gain level, from the first gain levels of each LNA, and then determines the first power supply voltage using the maximum gain level. The manner in which the control device determines the first power supply voltage according to the maximum gain level can refer to the above description of the control device determining the first power supply voltage according to the first gain level, which will not be repeated here.

[0086] Then, the control device controls the power supply device to supply power to each LNA according to the first power supply voltage.

[0087] In this way, while satisfying the gain requirements of each LNA, only a single power supply device can be used to supply power to all LNAs, thereby reducing the power supply cost. Compared with all LNAs being supplied with a constant voltage, power consumption can still be saved to a certain extent.

[0088] based on Fig.11 In an embodiment, in one implementation, some of the LNAs in the plurality of LNAs are located in the RF module, and another portion of the LNAs may be LNAs not located in the RF module. Fig.12 As shown, one LNA is located in the RF module. This solution uses a single power supply device to power multiple LNAs. In this case, there is still only one PA, and the power supply method has not changed. The core change is that four LNAs need to work, and the power supply voltage of each LNA is exactly the same.

[0089] based on Fig.11 In another implementation, the electronic device includes a plurality of radio frequency modules, including a plurality of power amplifiers, each low noise amplifier is respectively arranged in a corresponding radio frequency module, and each power amplifier is respectively arranged in a corresponding radio frequency module. The control device is connected to each low noise amplifier and each power amplifier through each radio frequency module; and the power supply device is connected to each low noise amplifier and each power amplifier through each radio frequency module.

[0090] Here, there are multiple RF modules and one power supply device.

[0091] For example, the RF module includes two, such as Fig.13As shown, each RF module includes a first power supply port, a second power supply port, a first connection port, and a second connection port. The power supply device supplies power to the LNA and PA in each RF module through the first power supply port and the second power supply port, and the control device controls the gain level of the LNA and PA in each RF module through the first connection port and the second connection port. When two PAs (or two LNAs) work at the same time, their power supply voltages are consistent in their working state. In this way, the electronic device can use a single power supply device to achieve the effect of powering two PAs and two LNAs in a time-sharing manner, saving costs and improving the flexibility of power supply for electronic devices.

[0092] In one embodiment, the electronic device includes a plurality of power supply devices, each of which is connected to the control device, and each of which is connected to each of the low noise amplifiers in a one-to-one correspondence.

[0093] That is, the electronic device can use multiple power supply devices to supply power to each low noise amplifier respectively, so that each power supply device provides the corresponding low noise amplifier with the power supply voltage currently required by it, effectively saving power consumption.

[0094] Optionally, each LNA can work simultaneously. In this case, the receiver can determine the signal strength of the received signal output by each LNA, and respectively determine the LNA gain level corresponding to each signal strength, so as to determine the first gain level currently required for each LNA to work, and then the control device determines the first power supply voltage currently required for each LNA according to each first gain level, and sends a first power supply instruction to each power supply device according to each first power supply voltage, and each power supply device supplies power to the LNA connected thereto according to the received first power supply instruction.

[0095] Optionally, in this embodiment, the electronic device may further include a plurality of power amplifiers, and each power supply device is connected to each power amplifier in a one-to-one correspondence.

[0096] That is, one power supply device is connected to the same group of power amplifiers and low noise amplifiers, and each power supply device supplies power to the connected group of power amplifiers and low noise amplifiers in a time-sharing manner.

[0097] Exemplarily, the electronic device includes a plurality of RF modules, and a group of power amplifiers and low noise amplifiers are located in one RF module. Thus, each group of power amplifiers and low noise amplifiers are located in each RF module, that is, the number of RF modules is equal to the number of power amplifiers and the number of low noise amplifiers. For example, there are two RF modules. Fig.14 The schematic diagram of the structure of the electronic device is shown. In this way, by adopting the power supply mode of the dual power supply device, two PAs and two LNAs can be powered completely independently, achieving the best power consumption benefit.

[0098] In one embodiment, an electronic device is provided, which may be a terminal, comprising the above-mentioned control device, power supply device, low noise amplifier and power amplifier, and its internal structure diagram may be as shown in FIG. Fig.15 As shown. The electronic device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface, the display unit and the input device are connected to the system bus via the input / output interface. The processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the electronic device is used to exchange information between the processor and an external device. The communication interface of the electronic device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The display unit of the electronic device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the electronic device housing, or an external keyboard, touchpad or mouse.

[0099] Those skilled in the art will understand that Fig.15 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the electronic device to which the scheme of the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0100] The technical features of the above embodiments may be combined arbitrarily. To make 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.

[0101] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An electronic device, characterized in that: The electronic device comprises a control device, a power supply device, a low noise amplifier and a power amplifier; The control device is used to determine a first power supply voltage currently required by the low-noise amplifier when the electronic device is communicating downlink, generate a first power supply instruction based on the first power supply voltage, and send the first power supply instruction to the power supply device; Also used for determining, during uplink communication of the electronic device, a second power supply voltage currently required by the power amplifier, generating a second power supply instruction based on the second power supply voltage, and sending the second power supply instruction to the power supply device; The power supply device is configured to supply power to the low noise amplifier according to the first power supply voltage when receiving the first power supply instruction; It is also used to supply power to the power amplifier according to the second power supply voltage when the second power supply instruction is received.

2. The electronic device according to claim 1, characterized in that: The electronic device further comprises a receiver connected to the low noise amplifier, the power amplifier and the control device; The receiver is used to control the low noise amplifier to start up during the start-up phase of the downlink communication, and to control the control device to send the first power supply instruction to the power supply device after a first buffer period; The receiver is further used to control the control device to send a first stop instruction to the power supply device during the shutdown phase of the downlink communication, wherein the first stop instruction is used to instruct the power supply device to stop supplying power to the low-noise amplifier; and control the low-noise amplifier to be turned off after a second buffer period.

3. The electronic device according to claim 2, characterized in that: The receiver is used to control the power amplifier to start up during the start-up phase of the uplink communication, and to control the control device to send the second power supply instruction to the power supply device after a third buffer period; The receiver is also used to control the control device to send a second stop instruction to the power supply device during the shutdown phase of the uplink communication, wherein the second stop instruction is used to instruct the power supply device to stop supplying power to the power amplifier; and control the power amplifier to shut down after a fourth buffer cycle.

4. The electronic device according to claim 2, characterized in that: The control device is used to determine the first gain level currently required by the low noise amplifier when the electronic device is communicating downlink, and determine the first supply voltage according to the first gain level; The control device is further used to determine the second gain level currently required by the power amplifier when the electronic device is communicating uplink, and determine the second supply voltage according to the second gain level.

5. The electronic device according to claim 4, characterized in that: The receiver is used to determine the signal strength of the received signal output by the low noise amplifier received by the receiver during downlink communication of the electronic device, determine the first gain level according to the signal strength of the received signal, and send the first gain level to the control device.

6. The electronic device according to claim 4, characterized in that: The control device is further used to control the low noise amplifier to operate at the first gain level when the electronic device is communicating downlink; and to control the power amplifier to operate at the second gain level when the electronic device is communicating uplink.

7. The electronic device according to claim 1, characterized in that: The electronic device further comprises a radio frequency module, and the low noise amplifier is arranged in the radio frequency module; The control device is connected to the power supply device, and is connected to the low noise amplifier through the first connection port of the radio frequency module and is connected to the power amplifier through the second connection port of the radio frequency module; The power supply device is used to connect to the low noise amplifier through the first power supply port of the radio frequency module and to connect to the power amplifier through the second power supply port of the radio frequency module.

8. The electronic device according to claim 6, characterized in that: The electronic device comprises a plurality of the low noise amplifiers; The control device is connected to each of the low noise amplifiers, and is used to control each of the low noise amplifiers to operate at the first gain level when the electronic device is communicating downlink, and send the first power supply instruction to the power supply device; The power supply device is connected to each of the low-noise amplifiers, and is used to supply power to each of the low-noise amplifiers according to the first power supply voltage under the control of the first power supply instruction.

9. The electronic device according to claim 8, characterized in that: The electronic device comprises a plurality of radio frequency modules, each of the low noise amplifiers is respectively arranged in a corresponding radio frequency module, and each of the power amplifiers is respectively arranged in a corresponding radio frequency module; The control device is connected to each of the low noise amplifiers and each of the power amplifiers through each of the radio frequency modules; The power supply device is connected to each of the low-noise amplifiers and each of the power amplifiers through each of the radio frequency modules.

10. The electronic device according to claim 8, characterized in that: The electronic device comprises a plurality of the power supply devices, each of the power supply devices is connected to the control device, and each of the power supply devices is connected to each of the low-noise amplifiers in a one-to-one correspondence.

11. The electronic device according to claim 10, characterized in that: The electronic device comprises a plurality of power amplifiers, and each of the power supply devices is connected to each of the power amplifiers in a one-to-one correspondence.

12. The electronic device according to any one of claims 1 to 11, characterized in that: The communication mode of the electronic device is TDD mode.

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